Make qtbase compile with QT_NO_TEMPORARYFILE

Change-Id: Ida2f59bb245ef70bf65f7e8944c4c315d5bc2f81 Reviewed-by: David Faure (KDE) <faure@kde.org> Reviewed-by: Jørgen Lind <jorgen.lind@digia.com> Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com> Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Rebaseupstream/users/wangpc-pp/spr/riscv-re-model-rvv-comparison-instructions
author: Tasuku Suzuki <stasuku@gmail.com> 2013-04-13 15:54:12 +0900
committer: The Qt Project <gerrit-noreply@qt-project.org> 2013-06-04 00:05:55 +0200
commit: 830cbb1aaf047d8f0ab63f25148b7dc7cc9f8fe0 (patch)
tree: 799c1fba65ca768346ace7f3e3c4f7dcd1d17775 /src/gui/painting
parent: 092a2f813cc02fe16f875149cd663922b9e99651 (diff)
4 files changed, 25 insertions, 3 deletions
diff --git a/src/gui/painting/qpdf.cpp b/src/gui/painting/qpdf.cpp
index 5d9a743dac..345ebefea7 100644
--- a/src/gui/painting/qpdf.cpp
+++ b/src/gui/painting/qpdf.cpp
@@ -38,9 +38,13 @@
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/
+
+#include "qpdf_p.h"
+
+#ifndef QT_NO_PDF
+
 #include "qplatformdefs.h"
 #include <qdebug.h>
-#include "qpdf_p.h"
 #include <qfile.h>
 #include <qtemporaryfile.h>
 #include <private/qmath_p.h>
@@ -2624,5 +2628,6 @@ void QPdfEnginePrivate::newPage()
                  << "q q\n";
 }
 
-
 QT_END_NAMESPACE
+
+#endif // QT_NO_PDF
diff --git a/src/gui/painting/qpdf_p.h b/src/gui/painting/qpdf_p.h
index 44e1446fff..560621775b 100644
--- a/src/gui/painting/qpdf_p.h
+++ b/src/gui/painting/qpdf_p.h
@@ -52,6 +52,11 @@
 //
 // We mean it.
 //
+
+#include <QtCore/qglobal.h>
+
+#ifndef QT_NO_PDF
+
 #include "QtGui/qmatrix.h"
 #include "QtCore/qstring.h"
 #include "QtCore/qvector.h"
@@ -328,5 +333,7 @@ void QPdfEngine::setResolution(int resolution)
 
 QT_END_NAMESPACE
 
+#endif // QT_NO_PDF
+
 #endif // QPDF_P_H
 
diff --git a/src/gui/painting/qpdfwriter.cpp b/src/gui/painting/qpdfwriter.cpp
index ad6b66ae09..136654cb5d 100644
--- a/src/gui/painting/qpdfwriter.cpp
+++ b/src/gui/painting/qpdfwriter.cpp
@@ -40,6 +40,9 @@
 ****************************************************************************/
 
 #include <qpdfwriter.h>
+
+#ifndef QT_NO_PDF
+
 #include <QtCore/private/qobject_p.h>
 #include "private/qpdf_p.h"
 #include <QtCore/qfile.h>
@@ -214,3 +217,5 @@ void QPdfWriter::setMargins(const Margins &m)
 }
 
 QT_END_NAMESPACE
+
+#endif // QT_NO_PDF
diff --git a/src/gui/painting/qpdfwriter.h b/src/gui/painting/qpdfwriter.h
index 45bb5ad4b4..f5c25de5e9 100644
--- a/src/gui/painting/qpdfwriter.h
+++ b/src/gui/painting/qpdfwriter.h
@@ -42,12 +42,15 @@
 #ifndef QPDFWRITER_H
 #define QPDFWRITER_H
 
+#include <QtCore/qglobal.h>
+
+#ifndef QT_NO_PDF
+
 #include <QtCore/qobject.h>
 #include <QtGui/qpagedpaintdevice.h>
 
 QT_BEGIN_NAMESPACE
 
-
 class QIODevice;
 class QPdfWriterPrivate;
 
@@ -83,4 +86,6 @@ private:
 
 QT_END_NAMESPACE
 
+#endif // QT_NO_PDF
+
 #endif
diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst
index 76701dc723b6..db90db6fa4ab 100644
--- a/clang/docs/ReleaseNotes.rst
+++ b/clang/docs/ReleaseNotes.rst
@@ -104,8 +104,7 @@ C++20 Feature Support
 
 - Clang now implements [module.import]p7 fully. Clang now will import module
   units transitively for the module units coming from the same module of the
-  current module units.
-  Fixes `#84002 <https://github.com/llvm/llvm-project/issues/84002>`_.
+  current module units. Fixes #GH84002
 
 - Initial support for class template argument deduction (CTAD) for type alias
   templates (`P1814R0 <https://wg21.link/p1814r0>`_).
@@ -135,8 +134,7 @@ C++2c Feature Support
 Resolutions to C++ Defect Reports
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 - Substitute template parameter pack, when it is not explicitly specified
-  in the template parameters, but is deduced from a previous argument.
-  (`#78449: <https://github.com/llvm/llvm-project/issues/78449>`_).
+  in the template parameters, but is deduced from a previous argument. (#GH78449)
 
 - Type qualifications are now ignored when evaluating layout compatibility
   of two types.
@@ -176,8 +174,7 @@ C23 Feature Support
 
 - Clang now generates predefined macros of the form ``__TYPE_FMTB__`` and
   ``__TYPE_FMTb__`` (e.g., ``__UINT_FAST64_FMTB__``) in C23 mode for use with
-  macros typically exposed from ``<inttypes.h>``, such as ``PRIb8``.
-  (`#81896: <https://github.com/llvm/llvm-project/issues/81896>`_).
+  macros typically exposed from ``<inttypes.h>``, such as ``PRIb8``. (#GH81896)
 
 - Clang now supports `N3018 The constexpr specifier for object definitions`
   <https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3018.htm>`_.
@@ -215,7 +212,7 @@ New Compiler Flags
 
 - ``-Wmissing-designated-field-initializers``, grouped under ``-Wmissing-field-initializers``.
   This diagnostic can be disabled to make ``-Wmissing-field-initializers`` behave
-  like it did before Clang 18.x. Fixes (`#56628 <https://github.com/llvm/llvm-project/issues/68933>`_)
+  like it did before Clang 18.x. Fixes #GH56628
 
 Deprecated Compiler Flags
 -------------------------
@@ -254,8 +251,7 @@ Removed Compiler Flags
 
 - The ``-freroll-loops`` flag has been removed. It had no effect since Clang 13.
 - ``-m[no-]unaligned-access`` is removed for RISC-V and LoongArch.
-  ``-m[no-]strict-align``, also supported by GCC, should be used instead.
-  (`#85350 <https://github.com/llvm/llvm-project/pull/85350>`_.)
+  ``-m[no-]strict-align``, also supported by GCC, should be used instead. (#GH85350)
 
 Attribute Changes in Clang
 --------------------------
@@ -325,8 +321,7 @@ Improvements to Clang's diagnostics
   Fixes #GH82512.
 
 - Clang now provides improved warnings for the ``cleanup`` attribute to detect misuse scenarios,
-  such as attempting to call ``free`` on an unallocated object. Fixes
-  `#79443 <https://github.com/llvm/llvm-project/issues/79443>`_.
+  such as attempting to call ``free`` on an unallocated object. Fixes #GH79443.
 
 - Clang no longer warns when the ``bitand`` operator is used with boolean
   operands, distinguishing it from potential typographical errors or unintended
@@ -372,11 +367,10 @@ Improvements to Clang's time-trace
 Bug Fixes in This Version
 -------------------------
 - Clang's ``-Wundefined-func-template`` no longer warns on pure virtual
-  functions.
-  (`#74016 <https://github.com/llvm/llvm-project/issues/74016>`_)
+  functions. (#GH74016)
 
 - Fixed missing warnings when comparing mismatched enumeration constants
-  in C (`#29217 <https://github.com/llvm/llvm-project/issues/29217>`).
+  in C (#GH29217)
 
 - Clang now accepts elaborated-type-specifiers that explicitly specialize
   a member class template for an implicit instantiation of a class template.
@@ -415,7 +409,7 @@ Bug Fixes in This Version
   type only rather than to the complex type (e.g. ``_Complex float / int`` is now evaluated
   as ``_Complex float / float`` rather than ``_Complex float / _Complex float``), as mandated
   by the C standard. This significantly improves codegen of `*` and `/` especially.
-  Fixes (`#31205 <https://github.com/llvm/llvm-project/issues/31205>`_).
+  Fixes #GH31205.
 
 - Fixes an assertion failure on invalid code when trying to define member
   functions in lambdas.
@@ -464,8 +458,7 @@ Bug Fixes to C++ Support
 - Fix a crash when trying to call a varargs function that also has an explicit object parameter. (#GH80971)
 - Fixed a bug where abbreviated function templates would append their invented template parameters to
   an empty template parameter lists.
-- Fix parsing of abominable function types inside type traits.
-  Fixes (`#77585 <https://github.com/llvm/llvm-project/issues/77585>`_)
+- Fix parsing of abominable function types inside type traits. Fixes #GH77585
 - Clang now classifies aggregate initialization in C++17 and newer as constant
   or non-constant more accurately. Previously, only a subset of the initializer
   elements were considered, misclassifying some initializers as constant. Partially fixes
@@ -506,9 +499,7 @@ Bug Fixes to C++ Support
 - Fix a bug where overload resolution falsely reported an ambiguity when it was comparing
   a member-function against a non member function or a member-function with an
   explicit object parameter against a member function with no explicit object parameter
-  when one of the function had more specialized templates.
-  Fixes (`#82509 <https://github.com/llvm/llvm-project/issues/82509>`_)
-  and (`#74494 <https://github.com/llvm/llvm-project/issues/74494>`_)
+  when one of the function had more specialized templates. Fixes #GH82509 and #GH74494
 - Clang now supports direct lambda calls inside of a type alias template declarations.
   This addresses (#GH70601), (#GH76674), (#GH79555), (#GH81145) and (#GH82104).
 - Allow access to a public template alias declaration that refers to friend's
@@ -530,8 +521,7 @@ Bug Fixes to C++ Support
 - Fixed a bug that prevented member function templates of class templates declared with a deduced return type
   from being explicitly specialized for a given implicit instantiation of the class template.
 
-- Fix crash when inheriting from a cv-qualified type. Fixes:
-  (`#35603 <https://github.com/llvm/llvm-project/issues/35603>`_)
+- Fix crash when inheriting from a cv-qualified type. Fixes #GH35603
 - Fix a crash when the using enum declaration uses an anonymous enumeration. Fixes (#GH86790).
 - Handled an edge case in ``getFullyPackExpandedSize`` so that we now avoid a false-positive diagnostic. (#GH84220)
 - Clang now correctly tracks type dependence of by-value captures in lambdas with an explicit
@@ -539,6 +529,7 @@ Bug Fixes to C++ Support
   Fixes (#GH70604), (#GH79754), (#GH84163), (#GH84425), (#GH86054), (#GH86398), and (#GH86399).
 - Fix a crash when deducing ``auto`` from an invalid dereference (#GH88329).
 - Fix a crash in requires expression with templated base class member function. Fixes (#GH84020).
+- Placement new initializes typedef array with correct size (#GH41441)
 
 Bug Fixes to AST Handling
 ^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -552,8 +543,7 @@ Miscellaneous Clang Crashes Fixed
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 - Do not attempt to dump the layout of dependent types or invalid declarations
-  when ``-fdump-record-layouts-complete`` is passed.
-  Fixes (`#83684 <https://github.com/llvm/llvm-project/issues/83684>`_).
+  when ``-fdump-record-layouts-complete`` is passed. Fixes #GH83684.
 
 OpenACC Specific Changes
 ------------------------
@@ -603,8 +593,7 @@ Windows Support
   would only be included if AVX was enabled at compile time. This was done to work
   around include times from MSVC STL including ``intrin.h`` under clang-cl.
   Clang-cl now provides ``intrin0.h`` for MSVC STL and therefore all intrinsic
-  features without requiring enablement at compile time.
-  Fixes: (`#53520 <https://github.com/llvm/llvm-project/issues/53520>`_)
+  features without requiring enablement at compile time. Fixes #GH53520
 
 - Improved compile times with MSVC STL. MSVC provides ``intrin0.h`` which is a
   header that only includes intrinsics that are used by MSVC STL to avoid the
diff --git a/clang/include/clang/AST/DeclBase.h b/clang/include/clang/AST/DeclBase.h
index 2194d268fa86..1079993f4969 100644
--- a/clang/include/clang/AST/DeclBase.h
+++ b/clang/include/clang/AST/DeclBase.h
@@ -672,16 +672,6 @@ public:
   /// Whether this declaration comes from explicit global module.
   bool isFromExplicitGlobalModule() const;
 
-  /// Check if we should skip checking ODRHash for declaration \param D.
-  ///
-  /// The existing ODRHash mechanism seems to be not stable enough and
-  /// the false positive ODR violation reports are annoying and we rarely see
-  /// true ODR violation reports. Also we learned that MSVC disabled ODR checks
-  /// for declarations in GMF. So we try to disable ODR checks in the GMF to
-  /// get better user experiences before we make the ODR violation checks stable
-  /// enough.
-  bool shouldSkipCheckingODR() const;
-
   /// Return true if this declaration has an attribute which acts as
   /// definition of the entity, such as 'alias' or 'ifunc'.
   bool hasDefiningAttr() const;
diff --git a/clang/include/clang/Basic/Cuda.h b/clang/include/clang/Basic/Cuda.h
index 38f30543a0f6..ba0e4465a0f5 100644
--- a/clang/include/clang/Basic/Cuda.h
+++ b/clang/include/clang/Basic/Cuda.h
@@ -50,17 +50,15 @@ const char *CudaVersionToString(CudaVersion V);
 // Input is "Major.Minor"
 CudaVersion CudaStringToVersion(const llvm::Twine &S);
 
-// We have a name conflict with sys/mac.h on AIX
-#ifdef SM_32
-#undef SM_32
-#endif
 enum class CudaArch {
   UNUSED,
   UNKNOWN,
+  // TODO: Deprecate and remove GPU architectures older than sm_52.
   SM_20,
   SM_21,
   SM_30,
-  SM_32,
+  // This has a name conflict with sys/mac.h on AIX, rename it as a workaround.
+  SM_32_,
   SM_35,
   SM_37,
   SM_50,
diff --git a/clang/include/clang/Parse/Parser.h b/clang/include/clang/Parse/Parser.h
index 5950dd74cfe8..23b268126de4 100644
--- a/clang/include/clang/Parse/Parser.h
+++ b/clang/include/clang/Parse/Parser.h
@@ -18,6 +18,7 @@
 #include "clang/Lex/CodeCompletionHandler.h"
 #include "clang/Lex/Preprocessor.h"
 #include "clang/Sema/Sema.h"
+#include "clang/Sema/SemaOpenMP.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/Frontend/OpenMP/OMPContext.h"
 #include "llvm/Support/SaveAndRestore.h"
@@ -2537,7 +2538,7 @@ private:
   /// Returns true for declaration, false for expression.
   bool isForInitDeclaration() {
     if (getLangOpts().OpenMP)
-      Actions.startOpenMPLoop();
+      Actions.OpenMP().startOpenMPLoop();
     if (getLangOpts().CPlusPlus)
       return Tok.is(tok::kw_using) ||
              isCXXSimpleDeclaration(/*AllowForRangeDecl=*/true);
@@ -3396,7 +3397,7 @@ private:
                           SourceLocation Loc);
 
   /// Parse clauses for '#pragma omp [begin] declare target'.
-  void ParseOMPDeclareTargetClauses(Sema::DeclareTargetContextInfo &DTCI);
+  void ParseOMPDeclareTargetClauses(SemaOpenMP::DeclareTargetContextInfo &DTCI);
 
   /// Parse '#pragma omp end declare target'.
   void ParseOMPEndDeclareTargetDirective(OpenMPDirectiveKind BeginDKind,
@@ -3486,7 +3487,7 @@ private:
   /// Parses indirect clause
   /// \param ParseOnly true to skip the clause's semantic actions and return
   // false;
-  bool ParseOpenMPIndirectClause(Sema::DeclareTargetContextInfo &DTCI,
+  bool ParseOpenMPIndirectClause(SemaOpenMP::DeclareTargetContextInfo &DTCI,
                                  bool ParseOnly);
   /// Parses clause with a single expression and an additional argument
   /// of a kind \a Kind.
@@ -3556,12 +3557,12 @@ public:
 
   /// Parses a reserved locator like 'omp_all_memory'.
   bool ParseOpenMPReservedLocator(OpenMPClauseKind Kind,
-                                  Sema::OpenMPVarListDataTy &Data,
+                                  SemaOpenMP::OpenMPVarListDataTy &Data,
                                   const LangOptions &LangOpts);
   /// Parses clauses with list.
   bool ParseOpenMPVarList(OpenMPDirectiveKind DKind, OpenMPClauseKind Kind,
                           SmallVectorImpl<Expr *> &Vars,
-                          Sema::OpenMPVarListDataTy &Data);
+                          SemaOpenMP::OpenMPVarListDataTy &Data);
   bool ParseUnqualifiedId(CXXScopeSpec &SS, ParsedType ObjectType,
                           bool ObjectHadErrors, bool EnteringContext,
                           bool AllowDestructorName, bool AllowConstructorName,
@@ -3569,11 +3570,11 @@ public:
                           SourceLocation *TemplateKWLoc, UnqualifiedId &Result);
 
   /// Parses the mapper modifier in map, to, and from clauses.
-  bool parseMapperModifier(Sema::OpenMPVarListDataTy &Data);
+  bool parseMapperModifier(SemaOpenMP::OpenMPVarListDataTy &Data);
   /// Parses map-type-modifiers in map clause.
   /// map([ [map-type-modifier[,] [map-type-modifier[,] ...] map-type : ] list)
   /// where, map-type-modifier ::= always | close | mapper(mapper-identifier)
-  bool parseMapTypeModifiers(Sema::OpenMPVarListDataTy &Data);
+  bool parseMapTypeModifiers(SemaOpenMP::OpenMPVarListDataTy &Data);
 
   //===--------------------------------------------------------------------===//
   // OpenACC Parsing.
diff --git a/clang/include/clang/Sema/Sema.h b/clang/include/clang/Sema/Sema.h
index d93ac7863b72..a5fe83a539aa 100644
--- a/clang/include/clang/Sema/Sema.h
+++ b/clang/include/clang/Sema/Sema.h
@@ -26,14 +26,12 @@
 #include "clang/AST/ExprCXX.h"
 #include "clang/AST/ExprConcepts.h"
 #include "clang/AST/ExprObjC.h"
-#include "clang/AST/ExprOpenMP.h"
 #include "clang/AST/ExternalASTSource.h"
 #include "clang/AST/LocInfoType.h"
 #include "clang/AST/MangleNumberingContext.h"
 #include "clang/AST/NSAPI.h"
 #include "clang/AST/PrettyPrinter.h"
 #include "clang/AST/StmtCXX.h"
-#include "clang/AST/StmtOpenMP.h"
 #include "clang/AST/TypeLoc.h"
 #include "clang/AST/TypeOrdering.h"
 #include "clang/Basic/BitmaskEnum.h"
@@ -43,7 +41,6 @@
 #include "clang/Basic/ExpressionTraits.h"
 #include "clang/Basic/Module.h"
 #include "clang/Basic/OpenCLOptions.h"
-#include "clang/Basic/OpenMPKinds.h"
 #include "clang/Basic/PragmaKinds.h"
 #include "clang/Basic/Specifiers.h"
 #include "clang/Basic/TemplateKinds.h"
@@ -68,7 +65,6 @@
 #include "llvm/ADT/SmallSet.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/TinyPtrVector.h"
-#include "llvm/Frontend/OpenMP/OMPConstants.h"
 #include <deque>
 #include <memory>
 #include <optional>
@@ -167,12 +163,6 @@ class ObjCMessageExpr;
 class ObjCMethodDecl;
 class ObjCPropertyDecl;
 class ObjCProtocolDecl;
-class OMPThreadPrivateDecl;
-class OMPRequiresDecl;
-class OMPDeclareReductionDecl;
-class OMPDeclareSimdDecl;
-class OMPClause;
-struct OMPVarListLocTy;
 struct OverloadCandidate;
 enum class OverloadCandidateParamOrder : char;
 enum OverloadCandidateRewriteKind : unsigned;
@@ -187,6 +177,7 @@ class QualType;
 class SemaCUDA;
 class SemaHLSL;
 class SemaOpenACC;
+class SemaOpenMP;
 class SemaSYCL;
 class StandardConversionSequence;
 class Stmt;
@@ -480,7 +471,6 @@ class Sema final : public SemaBase {
   // 35. Code Completion (SemaCodeComplete.cpp)
   // 36. FixIt Helpers (SemaFixItUtils.cpp)
   // 37. Name Lookup for RISC-V Vector Intrinsic (SemaRISCVVectorLookup.cpp)
-  // 38. OpenMP Directives and Clauses (SemaOpenMP.cpp)
 
   /// \name Semantic Analysis
   /// Implementations are in Sema.cpp
@@ -997,6 +987,11 @@ public:
     return *OpenACCPtr;
   }
 
+  SemaOpenMP &OpenMP() {
+    assert(OpenMPPtr && "SemaOpenMP is dead");
+    return *OpenMPPtr;
+  }
+
   SemaSYCL &SYCL() {
     assert(SYCLPtr);
     return *SYCLPtr;
@@ -1035,6 +1030,7 @@ private:
   std::unique_ptr<SemaCUDA> CUDAPtr;
   std::unique_ptr<SemaHLSL> HLSLPtr;
   std::unique_ptr<SemaOpenACC> OpenACCPtr;
+  std::unique_ptr<SemaOpenMP> OpenMPPtr;
   std::unique_ptr<SemaSYCL> SYCLPtr;
 
   ///@}
@@ -3443,14 +3439,6 @@ public:
 
   sema::LambdaScopeInfo *RebuildLambdaScopeInfo(CXXMethodDecl *CallOperator);
 
-  /// The declarator \p D defines a function in the scope \p S which is nested
-  /// in an `omp begin/end declare variant` scope. In this method we create a
-  /// declaration for \p D and rename \p D according to the OpenMP context
-  /// selector of the surrounding scope. Return all base functions in \p Bases.
-  void ActOnStartOfFunctionDefinitionInOpenMPDeclareVariantScope(
-      Scope *S, Declarator &D, MultiTemplateParamsArg TemplateParameterLists,
-      SmallVectorImpl<FunctionDecl *> &Bases);
-
   // Heuristically tells if the function is `get_return_object` member of a
   // coroutine promise_type by matching the function name.
   static bool CanBeGetReturnObject(const FunctionDecl *FD);
@@ -5533,32 +5521,6 @@ public:
                                               Expr *ColumnIdx,
                                               SourceLocation RBLoc);
 
-  ExprResult ActOnOMPArraySectionExpr(Expr *Base, SourceLocation LBLoc,
-                                      Expr *LowerBound,
-                                      SourceLocation ColonLocFirst,
-                                      SourceLocation ColonLocSecond,
-                                      Expr *Length, Expr *Stride,
-                                      SourceLocation RBLoc);
-  ExprResult ActOnOMPArrayShapingExpr(Expr *Base, SourceLocation LParenLoc,
-                                      SourceLocation RParenLoc,
-                                      ArrayRef<Expr *> Dims,
-                                      ArrayRef<SourceRange> Brackets);
-
-  /// Data structure for iterator expression.
-  struct OMPIteratorData {
-    IdentifierInfo *DeclIdent = nullptr;
-    SourceLocation DeclIdentLoc;
-    ParsedType Type;
-    OMPIteratorExpr::IteratorRange Range;
-    SourceLocation AssignLoc;
-    SourceLocation ColonLoc;
-    SourceLocation SecColonLoc;
-  };
-
-  ExprResult ActOnOMPIteratorExpr(Scope *S, SourceLocation IteratorKwLoc,
-                                  SourceLocation LLoc, SourceLocation RLoc,
-                                  ArrayRef<OMPIteratorData> Data);
-
   bool ConvertArgumentsForCall(CallExpr *Call, Expr *Fn, FunctionDecl *FDecl,
                                const FunctionProtoType *Proto,
                                ArrayRef<Expr *> Args, SourceLocation RParenLoc,
@@ -12863,1373 +12825,6 @@ private:
   std::unique_ptr<sema::RISCVIntrinsicManager> RVIntrinsicManager;
 
   ///@}
-
-  //
-  //
-  // -------------------------------------------------------------------------
-  //
-  //
-
-  /// \name OpenMP Directives and Clauses
-  /// Implementations are in SemaOpenMP.cpp
-  ///@{
-
-public:
-  /// Creates a SemaDiagnosticBuilder that emits the diagnostic if the current
-  /// context is "used as device code".
-  ///
-  /// - If CurContext is a `declare target` function or it is known that the
-  /// function is emitted for the device, emits the diagnostics immediately.
-  /// - If CurContext is a non-`declare target` function and we are compiling
-  ///   for the device, creates a diagnostic which is emitted if and when we
-  ///   realize that the function will be codegen'ed.
-  ///
-  /// Example usage:
-  ///
-  ///  // Variable-length arrays are not allowed in NVPTX device code.
-  ///  if (diagIfOpenMPDeviceCode(Loc, diag::err_vla_unsupported))
-  ///    return ExprError();
-  ///  // Otherwise, continue parsing as normal.
-  SemaDiagnosticBuilder diagIfOpenMPDeviceCode(SourceLocation Loc,
-                                               unsigned DiagID,
-                                               const FunctionDecl *FD);
-
-  /// Creates a SemaDiagnosticBuilder that emits the diagnostic if the current
-  /// context is "used as host code".
-  ///
-  /// - If CurContext is a `declare target` function or it is known that the
-  /// function is emitted for the host, emits the diagnostics immediately.
-  /// - If CurContext is a non-host function, just ignore it.
-  ///
-  /// Example usage:
-  ///
-  ///  // Variable-length arrays are not allowed in NVPTX device code.
-  ///  if (diagIfOpenMPHostode(Loc, diag::err_vla_unsupported))
-  ///    return ExprError();
-  ///  // Otherwise, continue parsing as normal.
-  SemaDiagnosticBuilder diagIfOpenMPHostCode(SourceLocation Loc,
-                                             unsigned DiagID,
-                                             const FunctionDecl *FD);
-
-  /// Register \p D as specialization of all base functions in \p Bases in the
-  /// current `omp begin/end declare variant` scope.
-  void ActOnFinishedFunctionDefinitionInOpenMPDeclareVariantScope(
-      Decl *D, SmallVectorImpl<FunctionDecl *> &Bases);
-
-  /// Act on \p D, a function definition inside of an `omp [begin/end] assumes`.
-  void ActOnFinishedFunctionDefinitionInOpenMPAssumeScope(Decl *D);
-
-  /// Can we exit an OpenMP declare variant scope at the moment.
-  bool isInOpenMPDeclareVariantScope() const {
-    return !OMPDeclareVariantScopes.empty();
-  }
-
-  ExprResult
-  VerifyPositiveIntegerConstantInClause(Expr *Op, OpenMPClauseKind CKind,
-                                        bool StrictlyPositive = true,
-                                        bool SuppressExprDiags = false);
-
-  /// Given the potential call expression \p Call, determine if there is a
-  /// specialization via the OpenMP declare variant mechanism available. If
-  /// there is, return the specialized call expression, otherwise return the
-  /// original \p Call.
-  ExprResult ActOnOpenMPCall(ExprResult Call, Scope *Scope,
-                             SourceLocation LParenLoc, MultiExprArg ArgExprs,
-                             SourceLocation RParenLoc, Expr *ExecConfig);
-
-  /// Handle a `omp begin declare variant`.
-  void ActOnOpenMPBeginDeclareVariant(SourceLocation Loc, OMPTraitInfo &TI);
-
-  /// Handle a `omp end declare variant`.
-  void ActOnOpenMPEndDeclareVariant();
-
-  /// Function tries to capture lambda's captured variables in the OpenMP region
-  /// before the original lambda is captured.
-  void tryCaptureOpenMPLambdas(ValueDecl *V);
-
-  /// Return true if the provided declaration \a VD should be captured by
-  /// reference.
-  /// \param Level Relative level of nested OpenMP construct for that the check
-  /// is performed.
-  /// \param OpenMPCaptureLevel Capture level within an OpenMP construct.
-  bool isOpenMPCapturedByRef(const ValueDecl *D, unsigned Level,
-                             unsigned OpenMPCaptureLevel) const;
-
-  /// Check if the specified variable is used in one of the private
-  /// clauses (private, firstprivate, lastprivate, reduction etc.) in OpenMP
-  /// constructs.
-  VarDecl *isOpenMPCapturedDecl(ValueDecl *D, bool CheckScopeInfo = false,
-                                unsigned StopAt = 0);
-
-  /// The member expression(this->fd) needs to be rebuilt in the template
-  /// instantiation to generate private copy for OpenMP when default
-  /// clause is used. The function will return true if default
-  /// cluse is used.
-  bool isOpenMPRebuildMemberExpr(ValueDecl *D);
-
-  ExprResult getOpenMPCapturedExpr(VarDecl *Capture, ExprValueKind VK,
-                                   ExprObjectKind OK, SourceLocation Loc);
-
-  /// If the current region is a loop-based region, mark the start of the loop
-  /// construct.
-  void startOpenMPLoop();
-
-  /// If the current region is a range loop-based region, mark the start of the
-  /// loop construct.
-  void startOpenMPCXXRangeFor();
-
-  /// Check if the specified variable is used in 'private' clause.
-  /// \param Level Relative level of nested OpenMP construct for that the check
-  /// is performed.
-  OpenMPClauseKind isOpenMPPrivateDecl(ValueDecl *D, unsigned Level,
-                                       unsigned CapLevel) const;
-
-  /// Sets OpenMP capture kind (OMPC_private, OMPC_firstprivate, OMPC_map etc.)
-  /// for \p FD based on DSA for the provided corresponding captured declaration
-  /// \p D.
-  void setOpenMPCaptureKind(FieldDecl *FD, const ValueDecl *D, unsigned Level);
-
-  /// Check if the specified variable is captured  by 'target' directive.
-  /// \param Level Relative level of nested OpenMP construct for that the check
-  /// is performed.
-  bool isOpenMPTargetCapturedDecl(const ValueDecl *D, unsigned Level,
-                                  unsigned CaptureLevel) const;
-
-  /// Check if the specified global variable must be captured  by outer capture
-  /// regions.
-  /// \param Level Relative level of nested OpenMP construct for that
-  /// the check is performed.
-  bool isOpenMPGlobalCapturedDecl(ValueDecl *D, unsigned Level,
-                                  unsigned CaptureLevel) const;
-
-  ExprResult PerformOpenMPImplicitIntegerConversion(SourceLocation OpLoc,
-                                                    Expr *Op);
-  /// Called on start of new data sharing attribute block.
-  void StartOpenMPDSABlock(OpenMPDirectiveKind K,
-                           const DeclarationNameInfo &DirName, Scope *CurScope,
-                           SourceLocation Loc);
-  /// Start analysis of clauses.
-  void StartOpenMPClause(OpenMPClauseKind K);
-  /// End analysis of clauses.
-  void EndOpenMPClause();
-  /// Called on end of data sharing attribute block.
-  void EndOpenMPDSABlock(Stmt *CurDirective);
-
-  /// Check if the current region is an OpenMP loop region and if it is,
-  /// mark loop control variable, used in \p Init for loop initialization, as
-  /// private by default.
-  /// \param Init First part of the for loop.
-  void ActOnOpenMPLoopInitialization(SourceLocation ForLoc, Stmt *Init);
-
-  /// Called on well-formed '\#pragma omp metadirective' after parsing
-  /// of the  associated statement.
-  StmtResult ActOnOpenMPMetaDirective(ArrayRef<OMPClause *> Clauses,
-                                      Stmt *AStmt, SourceLocation StartLoc,
-                                      SourceLocation EndLoc);
-
-  // OpenMP directives and clauses.
-  /// Called on correct id-expression from the '#pragma omp
-  /// threadprivate'.
-  ExprResult ActOnOpenMPIdExpression(Scope *CurScope, CXXScopeSpec &ScopeSpec,
-                                     const DeclarationNameInfo &Id,
-                                     OpenMPDirectiveKind Kind);
-  /// Called on well-formed '#pragma omp threadprivate'.
-  DeclGroupPtrTy ActOnOpenMPThreadprivateDirective(SourceLocation Loc,
-                                                   ArrayRef<Expr *> VarList);
-  /// Builds a new OpenMPThreadPrivateDecl and checks its correctness.
-  OMPThreadPrivateDecl *CheckOMPThreadPrivateDecl(SourceLocation Loc,
-                                                  ArrayRef<Expr *> VarList);
-  /// Called on well-formed '#pragma omp allocate'.
-  DeclGroupPtrTy ActOnOpenMPAllocateDirective(SourceLocation Loc,
-                                              ArrayRef<Expr *> VarList,
-                                              ArrayRef<OMPClause *> Clauses,
-                                              DeclContext *Owner = nullptr);
-
-  /// Called on well-formed '#pragma omp [begin] assume[s]'.
-  void ActOnOpenMPAssumesDirective(SourceLocation Loc,
-                                   OpenMPDirectiveKind DKind,
-                                   ArrayRef<std::string> Assumptions,
-                                   bool SkippedClauses);
-
-  /// Check if there is an active global `omp begin assumes` directive.
-  bool isInOpenMPAssumeScope() const { return !OMPAssumeScoped.empty(); }
-
-  /// Check if there is an active global `omp assumes` directive.
-  bool hasGlobalOpenMPAssumes() const { return !OMPAssumeGlobal.empty(); }
-
-  /// Called on well-formed '#pragma omp end assumes'.
-  void ActOnOpenMPEndAssumesDirective();
-
-  /// Called on well-formed '#pragma omp requires'.
-  DeclGroupPtrTy ActOnOpenMPRequiresDirective(SourceLocation Loc,
-                                              ArrayRef<OMPClause *> ClauseList);
-  /// Check restrictions on Requires directive
-  OMPRequiresDecl *CheckOMPRequiresDecl(SourceLocation Loc,
-                                        ArrayRef<OMPClause *> Clauses);
-  /// Check if the specified type is allowed to be used in 'omp declare
-  /// reduction' construct.
-  QualType ActOnOpenMPDeclareReductionType(SourceLocation TyLoc,
-                                           TypeResult ParsedType);
-  /// Called on start of '#pragma omp declare reduction'.
-  DeclGroupPtrTy ActOnOpenMPDeclareReductionDirectiveStart(
-      Scope *S, DeclContext *DC, DeclarationName Name,
-      ArrayRef<std::pair<QualType, SourceLocation>> ReductionTypes,
-      AccessSpecifier AS, Decl *PrevDeclInScope = nullptr);
-  /// Initialize declare reduction construct initializer.
-  void ActOnOpenMPDeclareReductionCombinerStart(Scope *S, Decl *D);
-  /// Finish current declare reduction construct initializer.
-  void ActOnOpenMPDeclareReductionCombinerEnd(Decl *D, Expr *Combiner);
-  /// Initialize declare reduction construct initializer.
-  /// \return omp_priv variable.
-  VarDecl *ActOnOpenMPDeclareReductionInitializerStart(Scope *S, Decl *D);
-  /// Finish current declare reduction construct initializer.
-  void ActOnOpenMPDeclareReductionInitializerEnd(Decl *D, Expr *Initializer,
-                                                 VarDecl *OmpPrivParm);
-  /// Called at the end of '#pragma omp declare reduction'.
-  DeclGroupPtrTy ActOnOpenMPDeclareReductionDirectiveEnd(
-      Scope *S, DeclGroupPtrTy DeclReductions, bool IsValid);
-
-  /// Check variable declaration in 'omp declare mapper' construct.
-  TypeResult ActOnOpenMPDeclareMapperVarDecl(Scope *S, Declarator &D);
-  /// Check if the specified type is allowed to be used in 'omp declare
-  /// mapper' construct.
-  QualType ActOnOpenMPDeclareMapperType(SourceLocation TyLoc,
-                                        TypeResult ParsedType);
-  /// Called on start of '#pragma omp declare mapper'.
-  DeclGroupPtrTy ActOnOpenMPDeclareMapperDirective(
-      Scope *S, DeclContext *DC, DeclarationName Name, QualType MapperType,
-      SourceLocation StartLoc, DeclarationName VN, AccessSpecifier AS,
-      Expr *MapperVarRef, ArrayRef<OMPClause *> Clauses,
-      Decl *PrevDeclInScope = nullptr);
-  /// Build the mapper variable of '#pragma omp declare mapper'.
-  ExprResult ActOnOpenMPDeclareMapperDirectiveVarDecl(Scope *S,
-                                                      QualType MapperType,
-                                                      SourceLocation StartLoc,
-                                                      DeclarationName VN);
-  void ActOnOpenMPIteratorVarDecl(VarDecl *VD);
-  bool isOpenMPDeclareMapperVarDeclAllowed(const VarDecl *VD) const;
-  const ValueDecl *getOpenMPDeclareMapperVarName() const;
-
-  struct DeclareTargetContextInfo {
-    struct MapInfo {
-      OMPDeclareTargetDeclAttr::MapTypeTy MT;
-      SourceLocation Loc;
-    };
-    /// Explicitly listed variables and functions in a 'to' or 'link' clause.
-    llvm::DenseMap<NamedDecl *, MapInfo> ExplicitlyMapped;
-
-    /// The 'device_type' as parsed from the clause.
-    OMPDeclareTargetDeclAttr::DevTypeTy DT = OMPDeclareTargetDeclAttr::DT_Any;
-
-    /// The directive kind, `begin declare target` or `declare target`.
-    OpenMPDirectiveKind Kind;
-
-    /// The directive with indirect clause.
-    std::optional<Expr *> Indirect;
-
-    /// The directive location.
-    SourceLocation Loc;
-
-    DeclareTargetContextInfo(OpenMPDirectiveKind Kind, SourceLocation Loc)
-        : Kind(Kind), Loc(Loc) {}
-  };
-
-  /// Called on the start of target region i.e. '#pragma omp declare target'.
-  bool ActOnStartOpenMPDeclareTargetContext(DeclareTargetContextInfo &DTCI);
-
-  /// Called at the end of target region i.e. '#pragma omp end declare target'.
-  const DeclareTargetContextInfo ActOnOpenMPEndDeclareTargetDirective();
-
-  /// Called once a target context is completed, that can be when a
-  /// '#pragma omp end declare target' was encountered or when a
-  /// '#pragma omp declare target' without declaration-definition-seq was
-  /// encountered.
-  void ActOnFinishedOpenMPDeclareTargetContext(DeclareTargetContextInfo &DTCI);
-
-  /// Report unterminated 'omp declare target' or 'omp begin declare target' at
-  /// the end of a compilation unit.
-  void DiagnoseUnterminatedOpenMPDeclareTarget();
-
-  /// Searches for the provided declaration name for OpenMP declare target
-  /// directive.
-  NamedDecl *lookupOpenMPDeclareTargetName(Scope *CurScope,
-                                           CXXScopeSpec &ScopeSpec,
-                                           const DeclarationNameInfo &Id);
-
-  /// Called on correct id-expression from the '#pragma omp declare target'.
-  void ActOnOpenMPDeclareTargetName(NamedDecl *ND, SourceLocation Loc,
-                                    OMPDeclareTargetDeclAttr::MapTypeTy MT,
-                                    DeclareTargetContextInfo &DTCI);
-
-  /// Check declaration inside target region.
-  void
-  checkDeclIsAllowedInOpenMPTarget(Expr *E, Decl *D,
-                                   SourceLocation IdLoc = SourceLocation());
-
-  /// Adds OMPDeclareTargetDeclAttr to referenced variables in declare target
-  /// directive.
-  void ActOnOpenMPDeclareTargetInitializer(Decl *D);
-
-  /// Finishes analysis of the deferred functions calls that may be declared as
-  /// host/nohost during device/host compilation.
-  void finalizeOpenMPDelayedAnalysis(const FunctionDecl *Caller,
-                                     const FunctionDecl *Callee,
-                                     SourceLocation Loc);
-
-  /// Return true if currently in OpenMP task with untied clause context.
-  bool isInOpenMPTaskUntiedContext() const;
-
-  /// Return true inside OpenMP declare target region.
-  bool isInOpenMPDeclareTargetContext() const {
-    return !DeclareTargetNesting.empty();
-  }
-  /// Return true inside OpenMP target region.
-  bool isInOpenMPTargetExecutionDirective() const;
-
-  /// Return the number of captured regions created for an OpenMP directive.
-  static int getOpenMPCaptureLevels(OpenMPDirectiveKind Kind);
-
-  /// Initialization of captured region for OpenMP region.
-  void ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope);
-
-  /// Called for syntactical loops (ForStmt or CXXForRangeStmt) associated to
-  /// an OpenMP loop directive.
-  StmtResult ActOnOpenMPCanonicalLoop(Stmt *AStmt);
-
-  /// Process a canonical OpenMP loop nest that can either be a canonical
-  /// literal loop (ForStmt or CXXForRangeStmt), or the generated loop of an
-  /// OpenMP loop transformation construct.
-  StmtResult ActOnOpenMPLoopnest(Stmt *AStmt);
-
-  /// End of OpenMP region.
-  ///
-  /// \param S Statement associated with the current OpenMP region.
-  /// \param Clauses List of clauses for the current OpenMP region.
-  ///
-  /// \returns Statement for finished OpenMP region.
-  StmtResult ActOnOpenMPRegionEnd(StmtResult S, ArrayRef<OMPClause *> Clauses);
-  StmtResult ActOnOpenMPExecutableDirective(
-      OpenMPDirectiveKind Kind, const DeclarationNameInfo &DirName,
-      OpenMPDirectiveKind CancelRegion, ArrayRef<OMPClause *> Clauses,
-      Stmt *AStmt, SourceLocation StartLoc, SourceLocation EndLoc,
-      OpenMPDirectiveKind PrevMappedDirective = llvm::omp::OMPD_unknown);
-  /// Called on well-formed '\#pragma omp parallel' after parsing
-  /// of the  associated statement.
-  StmtResult ActOnOpenMPParallelDirective(ArrayRef<OMPClause *> Clauses,
-                                          Stmt *AStmt, SourceLocation StartLoc,
-                                          SourceLocation EndLoc);
-  using VarsWithInheritedDSAType =
-      llvm::SmallDenseMap<const ValueDecl *, const Expr *, 4>;
-  /// Called on well-formed '\#pragma omp simd' after parsing
-  /// of the associated statement.
-  StmtResult
-  ActOnOpenMPSimdDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
-                           SourceLocation StartLoc, SourceLocation EndLoc,
-                           VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '#pragma omp tile' after parsing of its clauses and
-  /// the associated statement.
-  StmtResult ActOnOpenMPTileDirective(ArrayRef<OMPClause *> Clauses,
-                                      Stmt *AStmt, SourceLocation StartLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed '#pragma omp unroll' after parsing of its clauses
-  /// and the associated statement.
-  StmtResult ActOnOpenMPUnrollDirective(ArrayRef<OMPClause *> Clauses,
-                                        Stmt *AStmt, SourceLocation StartLoc,
-                                        SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp for' after parsing
-  /// of the associated statement.
-  StmtResult
-  ActOnOpenMPForDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
-                          SourceLocation StartLoc, SourceLocation EndLoc,
-                          VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp for simd' after parsing
-  /// of the associated statement.
-  StmtResult
-  ActOnOpenMPForSimdDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
-                              SourceLocation StartLoc, SourceLocation EndLoc,
-                              VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp sections' after parsing
-  /// of the associated statement.
-  StmtResult ActOnOpenMPSectionsDirective(ArrayRef<OMPClause *> Clauses,
-                                          Stmt *AStmt, SourceLocation StartLoc,
-                                          SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp section' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPSectionDirective(Stmt *AStmt, SourceLocation StartLoc,
-                                         SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp scope' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPScopeDirective(ArrayRef<OMPClause *> Clauses,
-                                       Stmt *AStmt, SourceLocation StartLoc,
-                                       SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp single' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPSingleDirective(ArrayRef<OMPClause *> Clauses,
-                                        Stmt *AStmt, SourceLocation StartLoc,
-                                        SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp master' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPMasterDirective(Stmt *AStmt, SourceLocation StartLoc,
-                                        SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp critical' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPCriticalDirective(const DeclarationNameInfo &DirName,
-                                          ArrayRef<OMPClause *> Clauses,
-                                          Stmt *AStmt, SourceLocation StartLoc,
-                                          SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp parallel for' after parsing
-  /// of the  associated statement.
-  StmtResult ActOnOpenMPParallelForDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp parallel for simd' after
-  /// parsing of the  associated statement.
-  StmtResult ActOnOpenMPParallelForSimdDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp parallel master' after
-  /// parsing of the  associated statement.
-  StmtResult ActOnOpenMPParallelMasterDirective(ArrayRef<OMPClause *> Clauses,
-                                                Stmt *AStmt,
-                                                SourceLocation StartLoc,
-                                                SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp parallel masked' after
-  /// parsing of the associated statement.
-  StmtResult ActOnOpenMPParallelMaskedDirective(ArrayRef<OMPClause *> Clauses,
-                                                Stmt *AStmt,
-                                                SourceLocation StartLoc,
-                                                SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp parallel sections' after
-  /// parsing of the  associated statement.
-  StmtResult ActOnOpenMPParallelSectionsDirective(ArrayRef<OMPClause *> Clauses,
-                                                  Stmt *AStmt,
-                                                  SourceLocation StartLoc,
-                                                  SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp task' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPTaskDirective(ArrayRef<OMPClause *> Clauses,
-                                      Stmt *AStmt, SourceLocation StartLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp taskyield'.
-  StmtResult ActOnOpenMPTaskyieldDirective(SourceLocation StartLoc,
-                                           SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp error'.
-  /// Error direcitive is allowed in both declared and excutable contexts.
-  /// Adding InExContext to identify which context is called from.
-  StmtResult ActOnOpenMPErrorDirective(ArrayRef<OMPClause *> Clauses,
-                                       SourceLocation StartLoc,
-                                       SourceLocation EndLoc,
-                                       bool InExContext = true);
-  /// Called on well-formed '\#pragma omp barrier'.
-  StmtResult ActOnOpenMPBarrierDirective(SourceLocation StartLoc,
-                                         SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp taskwait'.
-  StmtResult ActOnOpenMPTaskwaitDirective(ArrayRef<OMPClause *> Clauses,
-                                          SourceLocation StartLoc,
-                                          SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp taskgroup'.
-  StmtResult ActOnOpenMPTaskgroupDirective(ArrayRef<OMPClause *> Clauses,
-                                           Stmt *AStmt, SourceLocation StartLoc,
-                                           SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp flush'.
-  StmtResult ActOnOpenMPFlushDirective(ArrayRef<OMPClause *> Clauses,
-                                       SourceLocation StartLoc,
-                                       SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp depobj'.
-  StmtResult ActOnOpenMPDepobjDirective(ArrayRef<OMPClause *> Clauses,
-                                        SourceLocation StartLoc,
-                                        SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp scan'.
-  StmtResult ActOnOpenMPScanDirective(ArrayRef<OMPClause *> Clauses,
-                                      SourceLocation StartLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp ordered' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPOrderedDirective(ArrayRef<OMPClause *> Clauses,
-                                         Stmt *AStmt, SourceLocation StartLoc,
-                                         SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp atomic' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
-                                        Stmt *AStmt, SourceLocation StartLoc,
-                                        SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp target' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPTargetDirective(ArrayRef<OMPClause *> Clauses,
-                                        Stmt *AStmt, SourceLocation StartLoc,
-                                        SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp target data' after parsing of
-  /// the associated statement.
-  StmtResult ActOnOpenMPTargetDataDirective(ArrayRef<OMPClause *> Clauses,
-                                            Stmt *AStmt,
-                                            SourceLocation StartLoc,
-                                            SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp target enter data' after
-  /// parsing of the associated statement.
-  StmtResult ActOnOpenMPTargetEnterDataDirective(ArrayRef<OMPClause *> Clauses,
-                                                 SourceLocation StartLoc,
-                                                 SourceLocation EndLoc,
-                                                 Stmt *AStmt);
-  /// Called on well-formed '\#pragma omp target exit data' after
-  /// parsing of the associated statement.
-  StmtResult ActOnOpenMPTargetExitDataDirective(ArrayRef<OMPClause *> Clauses,
-                                                SourceLocation StartLoc,
-                                                SourceLocation EndLoc,
-                                                Stmt *AStmt);
-  /// Called on well-formed '\#pragma omp target parallel' after
-  /// parsing of the associated statement.
-  StmtResult ActOnOpenMPTargetParallelDirective(ArrayRef<OMPClause *> Clauses,
-                                                Stmt *AStmt,
-                                                SourceLocation StartLoc,
-                                                SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp target parallel for' after
-  /// parsing of the  associated statement.
-  StmtResult ActOnOpenMPTargetParallelForDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp teams' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPTeamsDirective(ArrayRef<OMPClause *> Clauses,
-                                       Stmt *AStmt, SourceLocation StartLoc,
-                                       SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp teams loop' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPTeamsGenericLoopDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp target teams loop' after parsing of
-  /// the associated statement.
-  StmtResult ActOnOpenMPTargetTeamsGenericLoopDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp parallel loop' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPParallelGenericLoopDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp target parallel loop' after parsing
-  /// of the associated statement.
-  StmtResult ActOnOpenMPTargetParallelGenericLoopDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp cancellation point'.
-  StmtResult
-  ActOnOpenMPCancellationPointDirective(SourceLocation StartLoc,
-                                        SourceLocation EndLoc,
-                                        OpenMPDirectiveKind CancelRegion);
-  /// Called on well-formed '\#pragma omp cancel'.
-  StmtResult ActOnOpenMPCancelDirective(ArrayRef<OMPClause *> Clauses,
-                                        SourceLocation StartLoc,
-                                        SourceLocation EndLoc,
-                                        OpenMPDirectiveKind CancelRegion);
-  /// Called on well-formed '\#pragma omp taskloop' after parsing of the
-  /// associated statement.
-  StmtResult
-  ActOnOpenMPTaskLoopDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
-                               SourceLocation StartLoc, SourceLocation EndLoc,
-                               VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp taskloop simd' after parsing of
-  /// the associated statement.
-  StmtResult ActOnOpenMPTaskLoopSimdDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp master taskloop' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPMasterTaskLoopDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp master taskloop simd' after parsing of
-  /// the associated statement.
-  StmtResult ActOnOpenMPMasterTaskLoopSimdDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp parallel master taskloop' after
-  /// parsing of the associated statement.
-  StmtResult ActOnOpenMPParallelMasterTaskLoopDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp parallel master taskloop simd' after
-  /// parsing of the associated statement.
-  StmtResult ActOnOpenMPParallelMasterTaskLoopSimdDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp masked taskloop' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPMaskedTaskLoopDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp masked taskloop simd' after parsing of
-  /// the associated statement.
-  StmtResult ActOnOpenMPMaskedTaskLoopSimdDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp parallel masked taskloop' after
-  /// parsing of the associated statement.
-  StmtResult ActOnOpenMPParallelMaskedTaskLoopDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp parallel masked taskloop simd' after
-  /// parsing of the associated statement.
-  StmtResult ActOnOpenMPParallelMaskedTaskLoopSimdDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp distribute' after parsing
-  /// of the associated statement.
-  StmtResult
-  ActOnOpenMPDistributeDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
-                                 SourceLocation StartLoc, SourceLocation EndLoc,
-                                 VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp target update'.
-  StmtResult ActOnOpenMPTargetUpdateDirective(ArrayRef<OMPClause *> Clauses,
-                                              SourceLocation StartLoc,
-                                              SourceLocation EndLoc,
-                                              Stmt *AStmt);
-  /// Called on well-formed '\#pragma omp distribute parallel for' after
-  /// parsing of the associated statement.
-  StmtResult ActOnOpenMPDistributeParallelForDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp distribute parallel for simd'
-  /// after parsing of the associated statement.
-  StmtResult ActOnOpenMPDistributeParallelForSimdDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp distribute simd' after
-  /// parsing of the associated statement.
-  StmtResult ActOnOpenMPDistributeSimdDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp target parallel for simd' after
-  /// parsing of the associated statement.
-  StmtResult ActOnOpenMPTargetParallelForSimdDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp target simd' after parsing of
-  /// the associated statement.
-  StmtResult
-  ActOnOpenMPTargetSimdDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
-                                 SourceLocation StartLoc, SourceLocation EndLoc,
-                                 VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp teams distribute' after parsing of
-  /// the associated statement.
-  StmtResult ActOnOpenMPTeamsDistributeDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp teams distribute simd' after parsing
-  /// of the associated statement.
-  StmtResult ActOnOpenMPTeamsDistributeSimdDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp teams distribute parallel for simd'
-  /// after parsing of the associated statement.
-  StmtResult ActOnOpenMPTeamsDistributeParallelForSimdDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp teams distribute parallel for'
-  /// after parsing of the associated statement.
-  StmtResult ActOnOpenMPTeamsDistributeParallelForDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp target teams' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPTargetTeamsDirective(ArrayRef<OMPClause *> Clauses,
-                                             Stmt *AStmt,
-                                             SourceLocation StartLoc,
-                                             SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp target teams distribute' after parsing
-  /// of the associated statement.
-  StmtResult ActOnOpenMPTargetTeamsDistributeDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp target teams distribute parallel for'
-  /// after parsing of the associated statement.
-  StmtResult ActOnOpenMPTargetTeamsDistributeParallelForDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp target teams distribute parallel for
-  /// simd' after parsing of the associated statement.
-  StmtResult ActOnOpenMPTargetTeamsDistributeParallelForSimdDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp target teams distribute simd' after
-  /// parsing of the associated statement.
-  StmtResult ActOnOpenMPTargetTeamsDistributeSimdDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp interop'.
-  StmtResult ActOnOpenMPInteropDirective(ArrayRef<OMPClause *> Clauses,
-                                         SourceLocation StartLoc,
-                                         SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp dispatch' after parsing of the
-  // /associated statement.
-  StmtResult ActOnOpenMPDispatchDirective(ArrayRef<OMPClause *> Clauses,
-                                          Stmt *AStmt, SourceLocation StartLoc,
-                                          SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp masked' after parsing of the
-  // /associated statement.
-  StmtResult ActOnOpenMPMaskedDirective(ArrayRef<OMPClause *> Clauses,
-                                        Stmt *AStmt, SourceLocation StartLoc,
-                                        SourceLocation EndLoc);
-
-  /// Called on well-formed '\#pragma omp loop' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPGenericLoopDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-
-  /// Checks correctness of linear modifiers.
-  bool CheckOpenMPLinearModifier(OpenMPLinearClauseKind LinKind,
-                                 SourceLocation LinLoc);
-  /// Checks that the specified declaration matches requirements for the linear
-  /// decls.
-  bool CheckOpenMPLinearDecl(const ValueDecl *D, SourceLocation ELoc,
-                             OpenMPLinearClauseKind LinKind, QualType Type,
-                             bool IsDeclareSimd = false);
-
-  /// Called on well-formed '\#pragma omp declare simd' after parsing of
-  /// the associated method/function.
-  DeclGroupPtrTy ActOnOpenMPDeclareSimdDirective(
-      DeclGroupPtrTy DG, OMPDeclareSimdDeclAttr::BranchStateTy BS,
-      Expr *Simdlen, ArrayRef<Expr *> Uniforms, ArrayRef<Expr *> Aligneds,
-      ArrayRef<Expr *> Alignments, ArrayRef<Expr *> Linears,
-      ArrayRef<unsigned> LinModifiers, ArrayRef<Expr *> Steps, SourceRange SR);
-
-  /// Checks '\#pragma omp declare variant' variant function and original
-  /// functions after parsing of the associated method/function.
-  /// \param DG Function declaration to which declare variant directive is
-  /// applied to.
-  /// \param VariantRef Expression that references the variant function, which
-  /// must be used instead of the original one, specified in \p DG.
-  /// \param TI The trait info object representing the match clause.
-  /// \param NumAppendArgs The number of omp_interop_t arguments to account for
-  /// in checking.
-  /// \returns std::nullopt, if the function/variant function are not compatible
-  /// with the pragma, pair of original function/variant ref expression
-  /// otherwise.
-  std::optional<std::pair<FunctionDecl *, Expr *>>
-  checkOpenMPDeclareVariantFunction(DeclGroupPtrTy DG, Expr *VariantRef,
-                                    OMPTraitInfo &TI, unsigned NumAppendArgs,
-                                    SourceRange SR);
-
-  /// Called on well-formed '\#pragma omp declare variant' after parsing of
-  /// the associated method/function.
-  /// \param FD Function declaration to which declare variant directive is
-  /// applied to.
-  /// \param VariantRef Expression that references the variant function, which
-  /// must be used instead of the original one, specified in \p DG.
-  /// \param TI The context traits associated with the function variant.
-  /// \param AdjustArgsNothing The list of 'nothing' arguments.
-  /// \param AdjustArgsNeedDevicePtr The list of 'need_device_ptr' arguments.
-  /// \param AppendArgs The list of 'append_args' arguments.
-  /// \param AdjustArgsLoc The Location of an 'adjust_args' clause.
-  /// \param AppendArgsLoc The Location of an 'append_args' clause.
-  /// \param SR The SourceRange of the 'declare variant' directive.
-  void ActOnOpenMPDeclareVariantDirective(
-      FunctionDecl *FD, Expr *VariantRef, OMPTraitInfo &TI,
-      ArrayRef<Expr *> AdjustArgsNothing,
-      ArrayRef<Expr *> AdjustArgsNeedDevicePtr,
-      ArrayRef<OMPInteropInfo> AppendArgs, SourceLocation AdjustArgsLoc,
-      SourceLocation AppendArgsLoc, SourceRange SR);
-
-  OMPClause *ActOnOpenMPSingleExprClause(OpenMPClauseKind Kind, Expr *Expr,
-                                         SourceLocation StartLoc,
-                                         SourceLocation LParenLoc,
-                                         SourceLocation EndLoc);
-  /// Called on well-formed 'allocator' clause.
-  OMPClause *ActOnOpenMPAllocatorClause(Expr *Allocator,
-                                        SourceLocation StartLoc,
-                                        SourceLocation LParenLoc,
-                                        SourceLocation EndLoc);
-  /// Called on well-formed 'if' clause.
-  OMPClause *ActOnOpenMPIfClause(OpenMPDirectiveKind NameModifier,
-                                 Expr *Condition, SourceLocation StartLoc,
-                                 SourceLocation LParenLoc,
-                                 SourceLocation NameModifierLoc,
-                                 SourceLocation ColonLoc,
-                                 SourceLocation EndLoc);
-  /// Called on well-formed 'final' clause.
-  OMPClause *ActOnOpenMPFinalClause(Expr *Condition, SourceLocation StartLoc,
-                                    SourceLocation LParenLoc,
-                                    SourceLocation EndLoc);
-  /// Called on well-formed 'num_threads' clause.
-  OMPClause *ActOnOpenMPNumThreadsClause(Expr *NumThreads,
-                                         SourceLocation StartLoc,
-                                         SourceLocation LParenLoc,
-                                         SourceLocation EndLoc);
-  /// Called on well-formed 'align' clause.
-  OMPClause *ActOnOpenMPAlignClause(Expr *Alignment, SourceLocation StartLoc,
-                                    SourceLocation LParenLoc,
-                                    SourceLocation EndLoc);
-  /// Called on well-formed 'safelen' clause.
-  OMPClause *ActOnOpenMPSafelenClause(Expr *Length, SourceLocation StartLoc,
-                                      SourceLocation LParenLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed 'simdlen' clause.
-  OMPClause *ActOnOpenMPSimdlenClause(Expr *Length, SourceLocation StartLoc,
-                                      SourceLocation LParenLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-form 'sizes' clause.
-  OMPClause *ActOnOpenMPSizesClause(ArrayRef<Expr *> SizeExprs,
-                                    SourceLocation StartLoc,
-                                    SourceLocation LParenLoc,
-                                    SourceLocation EndLoc);
-  /// Called on well-form 'full' clauses.
-  OMPClause *ActOnOpenMPFullClause(SourceLocation StartLoc,
-                                   SourceLocation EndLoc);
-  /// Called on well-form 'partial' clauses.
-  OMPClause *ActOnOpenMPPartialClause(Expr *FactorExpr, SourceLocation StartLoc,
-                                      SourceLocation LParenLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed 'collapse' clause.
-  OMPClause *ActOnOpenMPCollapseClause(Expr *NumForLoops,
-                                       SourceLocation StartLoc,
-                                       SourceLocation LParenLoc,
-                                       SourceLocation EndLoc);
-  /// Called on well-formed 'ordered' clause.
-  OMPClause *
-  ActOnOpenMPOrderedClause(SourceLocation StartLoc, SourceLocation EndLoc,
-                           SourceLocation LParenLoc = SourceLocation(),
-                           Expr *NumForLoops = nullptr);
-  /// Called on well-formed 'grainsize' clause.
-  OMPClause *ActOnOpenMPGrainsizeClause(OpenMPGrainsizeClauseModifier Modifier,
-                                        Expr *Size, SourceLocation StartLoc,
-                                        SourceLocation LParenLoc,
-                                        SourceLocation ModifierLoc,
-                                        SourceLocation EndLoc);
-  /// Called on well-formed 'num_tasks' clause.
-  OMPClause *ActOnOpenMPNumTasksClause(OpenMPNumTasksClauseModifier Modifier,
-                                       Expr *NumTasks, SourceLocation StartLoc,
-                                       SourceLocation LParenLoc,
-                                       SourceLocation ModifierLoc,
-                                       SourceLocation EndLoc);
-  /// Called on well-formed 'hint' clause.
-  OMPClause *ActOnOpenMPHintClause(Expr *Hint, SourceLocation StartLoc,
-                                   SourceLocation LParenLoc,
-                                   SourceLocation EndLoc);
-  /// Called on well-formed 'detach' clause.
-  OMPClause *ActOnOpenMPDetachClause(Expr *Evt, SourceLocation StartLoc,
-                                     SourceLocation LParenLoc,
-                                     SourceLocation EndLoc);
-
-  OMPClause *ActOnOpenMPSimpleClause(OpenMPClauseKind Kind, unsigned Argument,
-                                     SourceLocation ArgumentLoc,
-                                     SourceLocation StartLoc,
-                                     SourceLocation LParenLoc,
-                                     SourceLocation EndLoc);
-  /// Called on well-formed 'when' clause.
-  OMPClause *ActOnOpenMPWhenClause(OMPTraitInfo &TI, SourceLocation StartLoc,
-                                   SourceLocation LParenLoc,
-                                   SourceLocation EndLoc);
-  /// Called on well-formed 'default' clause.
-  OMPClause *ActOnOpenMPDefaultClause(llvm::omp::DefaultKind Kind,
-                                      SourceLocation KindLoc,
-                                      SourceLocation StartLoc,
-                                      SourceLocation LParenLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed 'proc_bind' clause.
-  OMPClause *ActOnOpenMPProcBindClause(llvm::omp::ProcBindKind Kind,
-                                       SourceLocation KindLoc,
-                                       SourceLocation StartLoc,
-                                       SourceLocation LParenLoc,
-                                       SourceLocation EndLoc);
-  /// Called on well-formed 'order' clause.
-  OMPClause *ActOnOpenMPOrderClause(OpenMPOrderClauseModifier Modifier,
-                                    OpenMPOrderClauseKind Kind,
-                                    SourceLocation StartLoc,
-                                    SourceLocation LParenLoc,
-                                    SourceLocation MLoc, SourceLocation KindLoc,
-                                    SourceLocation EndLoc);
-  /// Called on well-formed 'update' clause.
-  OMPClause *ActOnOpenMPUpdateClause(OpenMPDependClauseKind Kind,
-                                     SourceLocation KindLoc,
-                                     SourceLocation StartLoc,
-                                     SourceLocation LParenLoc,
-                                     SourceLocation EndLoc);
-
-  OMPClause *ActOnOpenMPSingleExprWithArgClause(
-      OpenMPClauseKind Kind, ArrayRef<unsigned> Arguments, Expr *Expr,
-      SourceLocation StartLoc, SourceLocation LParenLoc,
-      ArrayRef<SourceLocation> ArgumentsLoc, SourceLocation DelimLoc,
-      SourceLocation EndLoc);
-  /// Called on well-formed 'schedule' clause.
-  OMPClause *ActOnOpenMPScheduleClause(
-      OpenMPScheduleClauseModifier M1, OpenMPScheduleClauseModifier M2,
-      OpenMPScheduleClauseKind Kind, Expr *ChunkSize, SourceLocation StartLoc,
-      SourceLocation LParenLoc, SourceLocation M1Loc, SourceLocation M2Loc,
-      SourceLocation KindLoc, SourceLocation CommaLoc, SourceLocation EndLoc);
-
-  OMPClause *ActOnOpenMPClause(OpenMPClauseKind Kind, SourceLocation StartLoc,
-                               SourceLocation EndLoc);
-  /// Called on well-formed 'nowait' clause.
-  OMPClause *ActOnOpenMPNowaitClause(SourceLocation StartLoc,
-                                     SourceLocation EndLoc);
-  /// Called on well-formed 'untied' clause.
-  OMPClause *ActOnOpenMPUntiedClause(SourceLocation StartLoc,
-                                     SourceLocation EndLoc);
-  /// Called on well-formed 'mergeable' clause.
-  OMPClause *ActOnOpenMPMergeableClause(SourceLocation StartLoc,
-                                        SourceLocation EndLoc);
-  /// Called on well-formed 'read' clause.
-  OMPClause *ActOnOpenMPReadClause(SourceLocation StartLoc,
-                                   SourceLocation EndLoc);
-  /// Called on well-formed 'write' clause.
-  OMPClause *ActOnOpenMPWriteClause(SourceLocation StartLoc,
-                                    SourceLocation EndLoc);
-  /// Called on well-formed 'update' clause.
-  OMPClause *ActOnOpenMPUpdateClause(SourceLocation StartLoc,
-                                     SourceLocation EndLoc);
-  /// Called on well-formed 'capture' clause.
-  OMPClause *ActOnOpenMPCaptureClause(SourceLocation StartLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed 'compare' clause.
-  OMPClause *ActOnOpenMPCompareClause(SourceLocation StartLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed 'fail' clause.
-  OMPClause *ActOnOpenMPFailClause(SourceLocation StartLoc,
-                                   SourceLocation EndLoc);
-  OMPClause *ActOnOpenMPFailClause(OpenMPClauseKind Kind,
-                                   SourceLocation KindLoc,
-                                   SourceLocation StartLoc,
-                                   SourceLocation LParenLoc,
-                                   SourceLocation EndLoc);
-
-  /// Called on well-formed 'seq_cst' clause.
-  OMPClause *ActOnOpenMPSeqCstClause(SourceLocation StartLoc,
-                                     SourceLocation EndLoc);
-  /// Called on well-formed 'acq_rel' clause.
-  OMPClause *ActOnOpenMPAcqRelClause(SourceLocation StartLoc,
-                                     SourceLocation EndLoc);
-  /// Called on well-formed 'acquire' clause.
-  OMPClause *ActOnOpenMPAcquireClause(SourceLocation StartLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed 'release' clause.
-  OMPClause *ActOnOpenMPReleaseClause(SourceLocation StartLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed 'relaxed' clause.
-  OMPClause *ActOnOpenMPRelaxedClause(SourceLocation StartLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed 'weak' clause.
-  OMPClause *ActOnOpenMPWeakClause(SourceLocation StartLoc,
-                                   SourceLocation EndLoc);
-
-  /// Called on well-formed 'init' clause.
-  OMPClause *
-  ActOnOpenMPInitClause(Expr *InteropVar, OMPInteropInfo &InteropInfo,
-                        SourceLocation StartLoc, SourceLocation LParenLoc,
-                        SourceLocation VarLoc, SourceLocation EndLoc);
-
-  /// Called on well-formed 'use' clause.
-  OMPClause *ActOnOpenMPUseClause(Expr *InteropVar, SourceLocation StartLoc,
-                                  SourceLocation LParenLoc,
-                                  SourceLocation VarLoc, SourceLocation EndLoc);
-
-  /// Called on well-formed 'destroy' clause.
-  OMPClause *ActOnOpenMPDestroyClause(Expr *InteropVar, SourceLocation StartLoc,
-                                      SourceLocation LParenLoc,
-                                      SourceLocation VarLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed 'novariants' clause.
-  OMPClause *ActOnOpenMPNovariantsClause(Expr *Condition,
-                                         SourceLocation StartLoc,
-                                         SourceLocation LParenLoc,
-                                         SourceLocation EndLoc);
-  /// Called on well-formed 'nocontext' clause.
-  OMPClause *ActOnOpenMPNocontextClause(Expr *Condition,
-                                        SourceLocation StartLoc,
-                                        SourceLocation LParenLoc,
-                                        SourceLocation EndLoc);
-  /// Called on well-formed 'filter' clause.
-  OMPClause *ActOnOpenMPFilterClause(Expr *ThreadID, SourceLocation StartLoc,
-                                     SourceLocation LParenLoc,
-                                     SourceLocation EndLoc);
-  /// Called on well-formed 'threads' clause.
-  OMPClause *ActOnOpenMPThreadsClause(SourceLocation StartLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed 'simd' clause.
-  OMPClause *ActOnOpenMPSIMDClause(SourceLocation StartLoc,
-                                   SourceLocation EndLoc);
-  /// Called on well-formed 'nogroup' clause.
-  OMPClause *ActOnOpenMPNogroupClause(SourceLocation StartLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed 'unified_address' clause.
-  OMPClause *ActOnOpenMPUnifiedAddressClause(SourceLocation StartLoc,
-                                             SourceLocation EndLoc);
-
-  /// Called on well-formed 'unified_address' clause.
-  OMPClause *ActOnOpenMPUnifiedSharedMemoryClause(SourceLocation StartLoc,
-                                                  SourceLocation EndLoc);
-
-  /// Called on well-formed 'reverse_offload' clause.
-  OMPClause *ActOnOpenMPReverseOffloadClause(SourceLocation StartLoc,
-                                             SourceLocation EndLoc);
-
-  /// Called on well-formed 'dynamic_allocators' clause.
-  OMPClause *ActOnOpenMPDynamicAllocatorsClause(SourceLocation StartLoc,
-                                                SourceLocation EndLoc);
-
-  /// Called on well-formed 'atomic_default_mem_order' clause.
-  OMPClause *ActOnOpenMPAtomicDefaultMemOrderClause(
-      OpenMPAtomicDefaultMemOrderClauseKind Kind, SourceLocation KindLoc,
-      SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation EndLoc);
-
-  /// Called on well-formed 'at' clause.
-  OMPClause *ActOnOpenMPAtClause(OpenMPAtClauseKind Kind,
-                                 SourceLocation KindLoc,
-                                 SourceLocation StartLoc,
-                                 SourceLocation LParenLoc,
-                                 SourceLocation EndLoc);
-
-  /// Called on well-formed 'severity' clause.
-  OMPClause *ActOnOpenMPSeverityClause(OpenMPSeverityClauseKind Kind,
-                                       SourceLocation KindLoc,
-                                       SourceLocation StartLoc,
-                                       SourceLocation LParenLoc,
-                                       SourceLocation EndLoc);
-
-  /// Called on well-formed 'message' clause.
-  /// passing string for message.
-  OMPClause *ActOnOpenMPMessageClause(Expr *MS, SourceLocation StartLoc,
-                                      SourceLocation LParenLoc,
-                                      SourceLocation EndLoc);
-
-  /// Data used for processing a list of variables in OpenMP clauses.
-  struct OpenMPVarListDataTy final {
-    Expr *DepModOrTailExpr = nullptr;
-    Expr *IteratorExpr = nullptr;
-    SourceLocation ColonLoc;
-    SourceLocation RLoc;
-    CXXScopeSpec ReductionOrMapperIdScopeSpec;
-    DeclarationNameInfo ReductionOrMapperId;
-    int ExtraModifier = -1; ///< Additional modifier for linear, map, depend or
-                            ///< lastprivate clause.
-    SmallVector<OpenMPMapModifierKind, NumberOfOMPMapClauseModifiers>
-        MapTypeModifiers;
-    SmallVector<SourceLocation, NumberOfOMPMapClauseModifiers>
-        MapTypeModifiersLoc;
-    SmallVector<OpenMPMotionModifierKind, NumberOfOMPMotionModifiers>
-        MotionModifiers;
-    SmallVector<SourceLocation, NumberOfOMPMotionModifiers> MotionModifiersLoc;
-    bool IsMapTypeImplicit = false;
-    SourceLocation ExtraModifierLoc;
-    SourceLocation OmpAllMemoryLoc;
-    SourceLocation
-        StepModifierLoc; /// 'step' modifier location for linear clause
-  };
-
-  OMPClause *ActOnOpenMPVarListClause(OpenMPClauseKind Kind,
-                                      ArrayRef<Expr *> Vars,
-                                      const OMPVarListLocTy &Locs,
-                                      OpenMPVarListDataTy &Data);
-  /// Called on well-formed 'inclusive' clause.
-  OMPClause *ActOnOpenMPInclusiveClause(ArrayRef<Expr *> VarList,
-                                        SourceLocation StartLoc,
-                                        SourceLocation LParenLoc,
-                                        SourceLocation EndLoc);
-  /// Called on well-formed 'exclusive' clause.
-  OMPClause *ActOnOpenMPExclusiveClause(ArrayRef<Expr *> VarList,
-                                        SourceLocation StartLoc,
-                                        SourceLocation LParenLoc,
-                                        SourceLocation EndLoc);
-  /// Called on well-formed 'allocate' clause.
-  OMPClause *
-  ActOnOpenMPAllocateClause(Expr *Allocator, ArrayRef<Expr *> VarList,
-                            SourceLocation StartLoc, SourceLocation ColonLoc,
-                            SourceLocation LParenLoc, SourceLocation EndLoc);
-  /// Called on well-formed 'private' clause.
-  OMPClause *ActOnOpenMPPrivateClause(ArrayRef<Expr *> VarList,
-                                      SourceLocation StartLoc,
-                                      SourceLocation LParenLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed 'firstprivate' clause.
-  OMPClause *ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
-                                           SourceLocation StartLoc,
-                                           SourceLocation LParenLoc,
-                                           SourceLocation EndLoc);
-  /// Called on well-formed 'lastprivate' clause.
-  OMPClause *ActOnOpenMPLastprivateClause(
-      ArrayRef<Expr *> VarList, OpenMPLastprivateModifier LPKind,
-      SourceLocation LPKindLoc, SourceLocation ColonLoc,
-      SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation EndLoc);
-  /// Called on well-formed 'shared' clause.
-  OMPClause *ActOnOpenMPSharedClause(ArrayRef<Expr *> VarList,
-                                     SourceLocation StartLoc,
-                                     SourceLocation LParenLoc,
-                                     SourceLocation EndLoc);
-  /// Called on well-formed 'reduction' clause.
-  OMPClause *ActOnOpenMPReductionClause(
-      ArrayRef<Expr *> VarList, OpenMPReductionClauseModifier Modifier,
-      SourceLocation StartLoc, SourceLocation LParenLoc,
-      SourceLocation ModifierLoc, SourceLocation ColonLoc,
-      SourceLocation EndLoc, CXXScopeSpec &ReductionIdScopeSpec,
-      const DeclarationNameInfo &ReductionId,
-      ArrayRef<Expr *> UnresolvedReductions = std::nullopt);
-  /// Called on well-formed 'task_reduction' clause.
-  OMPClause *ActOnOpenMPTaskReductionClause(
-      ArrayRef<Expr *> VarList, SourceLocation StartLoc,
-      SourceLocation LParenLoc, SourceLocation ColonLoc, SourceLocation EndLoc,
-      CXXScopeSpec &ReductionIdScopeSpec,
-      const DeclarationNameInfo &ReductionId,
-      ArrayRef<Expr *> UnresolvedReductions = std::nullopt);
-  /// Called on well-formed 'in_reduction' clause.
-  OMPClause *ActOnOpenMPInReductionClause(
-      ArrayRef<Expr *> VarList, SourceLocation StartLoc,
-      SourceLocation LParenLoc, SourceLocation ColonLoc, SourceLocation EndLoc,
-      CXXScopeSpec &ReductionIdScopeSpec,
-      const DeclarationNameInfo &ReductionId,
-      ArrayRef<Expr *> UnresolvedReductions = std::nullopt);
-  /// Called on well-formed 'linear' clause.
-  OMPClause *ActOnOpenMPLinearClause(
-      ArrayRef<Expr *> VarList, Expr *Step, SourceLocation StartLoc,
-      SourceLocation LParenLoc, OpenMPLinearClauseKind LinKind,
-      SourceLocation LinLoc, SourceLocation ColonLoc,
-      SourceLocation StepModifierLoc, SourceLocation EndLoc);
-  /// Called on well-formed 'aligned' clause.
-  OMPClause *ActOnOpenMPAlignedClause(ArrayRef<Expr *> VarList, Expr *Alignment,
-                                      SourceLocation StartLoc,
-                                      SourceLocation LParenLoc,
-                                      SourceLocation ColonLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed 'copyin' clause.
-  OMPClause *ActOnOpenMPCopyinClause(ArrayRef<Expr *> VarList,
-                                     SourceLocation StartLoc,
-                                     SourceLocation LParenLoc,
-                                     SourceLocation EndLoc);
-  /// Called on well-formed 'copyprivate' clause.
-  OMPClause *ActOnOpenMPCopyprivateClause(ArrayRef<Expr *> VarList,
-                                          SourceLocation StartLoc,
-                                          SourceLocation LParenLoc,
-                                          SourceLocation EndLoc);
-  /// Called on well-formed 'flush' pseudo clause.
-  OMPClause *ActOnOpenMPFlushClause(ArrayRef<Expr *> VarList,
-                                    SourceLocation StartLoc,
-                                    SourceLocation LParenLoc,
-                                    SourceLocation EndLoc);
-  /// Called on well-formed 'depobj' pseudo clause.
-  OMPClause *ActOnOpenMPDepobjClause(Expr *Depobj, SourceLocation StartLoc,
-                                     SourceLocation LParenLoc,
-                                     SourceLocation EndLoc);
-  /// Called on well-formed 'depend' clause.
-  OMPClause *ActOnOpenMPDependClause(const OMPDependClause::DependDataTy &Data,
-                                     Expr *DepModifier,
-                                     ArrayRef<Expr *> VarList,
-                                     SourceLocation StartLoc,
-                                     SourceLocation LParenLoc,
-                                     SourceLocation EndLoc);
-  /// Called on well-formed 'device' clause.
-  OMPClause *ActOnOpenMPDeviceClause(OpenMPDeviceClauseModifier Modifier,
-                                     Expr *Device, SourceLocation StartLoc,
-                                     SourceLocation LParenLoc,
-                                     SourceLocation ModifierLoc,
-                                     SourceLocation EndLoc);
-  /// Called on well-formed 'map' clause.
-  OMPClause *ActOnOpenMPMapClause(
-      Expr *IteratorModifier, ArrayRef<OpenMPMapModifierKind> MapTypeModifiers,
-      ArrayRef<SourceLocation> MapTypeModifiersLoc,
-      CXXScopeSpec &MapperIdScopeSpec, DeclarationNameInfo &MapperId,
-      OpenMPMapClauseKind MapType, bool IsMapTypeImplicit,
-      SourceLocation MapLoc, SourceLocation ColonLoc, ArrayRef<Expr *> VarList,
-      const OMPVarListLocTy &Locs, bool NoDiagnose = false,
-      ArrayRef<Expr *> UnresolvedMappers = std::nullopt);
-  /// Called on well-formed 'num_teams' clause.
-  OMPClause *ActOnOpenMPNumTeamsClause(Expr *NumTeams, SourceLocation StartLoc,
-                                       SourceLocation LParenLoc,
-                                       SourceLocation EndLoc);
-  /// Called on well-formed 'thread_limit' clause.
-  OMPClause *ActOnOpenMPThreadLimitClause(Expr *ThreadLimit,
-                                          SourceLocation StartLoc,
-                                          SourceLocation LParenLoc,
-                                          SourceLocation EndLoc);
-  /// Called on well-formed 'priority' clause.
-  OMPClause *ActOnOpenMPPriorityClause(Expr *Priority, SourceLocation StartLoc,
-                                       SourceLocation LParenLoc,
-                                       SourceLocation EndLoc);
-  /// Called on well-formed 'dist_schedule' clause.
-  OMPClause *ActOnOpenMPDistScheduleClause(
-      OpenMPDistScheduleClauseKind Kind, Expr *ChunkSize,
-      SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation KindLoc,
-      SourceLocation CommaLoc, SourceLocation EndLoc);
-  /// Called on well-formed 'defaultmap' clause.
-  OMPClause *ActOnOpenMPDefaultmapClause(
-      OpenMPDefaultmapClauseModifier M, OpenMPDefaultmapClauseKind Kind,
-      SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation MLoc,
-      SourceLocation KindLoc, SourceLocation EndLoc);
-  /// Called on well-formed 'to' clause.
-  OMPClause *
-  ActOnOpenMPToClause(ArrayRef<OpenMPMotionModifierKind> MotionModifiers,
-                      ArrayRef<SourceLocation> MotionModifiersLoc,
-                      CXXScopeSpec &MapperIdScopeSpec,
-                      DeclarationNameInfo &MapperId, SourceLocation ColonLoc,
-                      ArrayRef<Expr *> VarList, const OMPVarListLocTy &Locs,
-                      ArrayRef<Expr *> UnresolvedMappers = std::nullopt);
-  /// Called on well-formed 'from' clause.
-  OMPClause *
-  ActOnOpenMPFromClause(ArrayRef<OpenMPMotionModifierKind> MotionModifiers,
-                        ArrayRef<SourceLocation> MotionModifiersLoc,
-                        CXXScopeSpec &MapperIdScopeSpec,
-                        DeclarationNameInfo &MapperId, SourceLocation ColonLoc,
-                        ArrayRef<Expr *> VarList, const OMPVarListLocTy &Locs,
-                        ArrayRef<Expr *> UnresolvedMappers = std::nullopt);
-  /// Called on well-formed 'use_device_ptr' clause.
-  OMPClause *ActOnOpenMPUseDevicePtrClause(ArrayRef<Expr *> VarList,
-                                           const OMPVarListLocTy &Locs);
-  /// Called on well-formed 'use_device_addr' clause.
-  OMPClause *ActOnOpenMPUseDeviceAddrClause(ArrayRef<Expr *> VarList,
-                                            const OMPVarListLocTy &Locs);
-  /// Called on well-formed 'is_device_ptr' clause.
-  OMPClause *ActOnOpenMPIsDevicePtrClause(ArrayRef<Expr *> VarList,
-                                          const OMPVarListLocTy &Locs);
-  /// Called on well-formed 'has_device_addr' clause.
-  OMPClause *ActOnOpenMPHasDeviceAddrClause(ArrayRef<Expr *> VarList,
-                                            const OMPVarListLocTy &Locs);
-  /// Called on well-formed 'nontemporal' clause.
-  OMPClause *ActOnOpenMPNontemporalClause(ArrayRef<Expr *> VarList,
-                                          SourceLocation StartLoc,
-                                          SourceLocation LParenLoc,
-                                          SourceLocation EndLoc);
-
-  /// Data for list of allocators.
-  struct UsesAllocatorsData {
-    /// Allocator.
-    Expr *Allocator = nullptr;
-    /// Allocator traits.
-    Expr *AllocatorTraits = nullptr;
-    /// Locations of '(' and ')' symbols.
-    SourceLocation LParenLoc, RParenLoc;
-  };
-  /// Called on well-formed 'uses_allocators' clause.
-  OMPClause *ActOnOpenMPUsesAllocatorClause(SourceLocation StartLoc,
-                                            SourceLocation LParenLoc,
-                                            SourceLocation EndLoc,
-                                            ArrayRef<UsesAllocatorsData> Data);
-  /// Called on well-formed 'affinity' clause.
-  OMPClause *ActOnOpenMPAffinityClause(SourceLocation StartLoc,
-                                       SourceLocation LParenLoc,
-                                       SourceLocation ColonLoc,
-                                       SourceLocation EndLoc, Expr *Modifier,
-                                       ArrayRef<Expr *> Locators);
-  /// Called on a well-formed 'bind' clause.
-  OMPClause *ActOnOpenMPBindClause(OpenMPBindClauseKind Kind,
-                                   SourceLocation KindLoc,
-                                   SourceLocation StartLoc,
-                                   SourceLocation LParenLoc,
-                                   SourceLocation EndLoc);
-
-  /// Called on a well-formed 'ompx_dyn_cgroup_mem' clause.
-  OMPClause *ActOnOpenMPXDynCGroupMemClause(Expr *Size, SourceLocation StartLoc,
-                                            SourceLocation LParenLoc,
-                                            SourceLocation EndLoc);
-
-  /// Called on well-formed 'doacross' clause.
-  OMPClause *
-  ActOnOpenMPDoacrossClause(OpenMPDoacrossClauseModifier DepType,
-                            SourceLocation DepLoc, SourceLocation ColonLoc,
-                            ArrayRef<Expr *> VarList, SourceLocation StartLoc,
-                            SourceLocation LParenLoc, SourceLocation EndLoc);
-
-  /// Called on a well-formed 'ompx_attribute' clause.
-  OMPClause *ActOnOpenMPXAttributeClause(ArrayRef<const Attr *> Attrs,
-                                         SourceLocation StartLoc,
-                                         SourceLocation LParenLoc,
-                                         SourceLocation EndLoc);
-
-  /// Called on a well-formed 'ompx_bare' clause.
-  OMPClause *ActOnOpenMPXBareClause(SourceLocation StartLoc,
-                                    SourceLocation EndLoc);
-
-private:
-  void *VarDataSharingAttributesStack;
-
-  /// Number of nested '#pragma omp declare target' directives.
-  SmallVector<DeclareTargetContextInfo, 4> DeclareTargetNesting;
-
-  /// Initialization of data-sharing attributes stack.
-  void InitDataSharingAttributesStack();
-  void DestroyDataSharingAttributesStack();
-
-  /// Returns OpenMP nesting level for current directive.
-  unsigned getOpenMPNestingLevel() const;
-
-  /// Adjusts the function scopes index for the target-based regions.
-  void adjustOpenMPTargetScopeIndex(unsigned &FunctionScopesIndex,
-                                    unsigned Level) const;
-
-  /// Returns the number of scopes associated with the construct on the given
-  /// OpenMP level.
-  int getNumberOfConstructScopes(unsigned Level) const;
-
-  /// Push new OpenMP function region for non-capturing function.
-  void pushOpenMPFunctionRegion();
-
-  /// Pop OpenMP function region for non-capturing function.
-  void popOpenMPFunctionRegion(const sema::FunctionScopeInfo *OldFSI);
-
-  /// Analyzes and checks a loop nest for use by a loop transformation.
-  ///
-  /// \param Kind          The loop transformation directive kind.
-  /// \param NumLoops      How many nested loops the directive is expecting.
-  /// \param AStmt         Associated statement of the transformation directive.
-  /// \param LoopHelpers   [out] The loop analysis result.
-  /// \param Body          [out] The body code nested in \p NumLoops loop.
-  /// \param OriginalInits [out] Collection of statements and declarations that
-  ///                      must have been executed/declared before entering the
-  ///                      loop.
-  ///
-  /// \return Whether there was any error.
-  bool checkTransformableLoopNest(
-      OpenMPDirectiveKind Kind, Stmt *AStmt, int NumLoops,
-      SmallVectorImpl<OMPLoopBasedDirective::HelperExprs> &LoopHelpers,
-      Stmt *&Body,
-      SmallVectorImpl<SmallVector<llvm::PointerUnion<Stmt *, Decl *>, 0>>
-          &OriginalInits);
-
-  /// Helper to keep information about the current `omp begin/end declare
-  /// variant` nesting.
-  struct OMPDeclareVariantScope {
-    /// The associated OpenMP context selector.
-    OMPTraitInfo *TI;
-
-    /// The associated OpenMP context selector mangling.
-    std::string NameSuffix;
-
-    OMPDeclareVariantScope(OMPTraitInfo &TI);
-  };
-
-  /// Return the OMPTraitInfo for the surrounding scope, if any.
-  OMPTraitInfo *getOMPTraitInfoForSurroundingScope() {
-    return OMPDeclareVariantScopes.empty() ? nullptr
-                                           : OMPDeclareVariantScopes.back().TI;
-  }
-
-  /// The current `omp begin/end declare variant` scopes.
-  SmallVector<OMPDeclareVariantScope, 4> OMPDeclareVariantScopes;
-
-  /// The current `omp begin/end assumes` scopes.
-  SmallVector<OMPAssumeAttr *, 4> OMPAssumeScoped;
-
-  /// All `omp assumes` we encountered so far.
-  SmallVector<OMPAssumeAttr *, 4> OMPAssumeGlobal;
-
-  /// OMPD_loop is mapped to OMPD_for, OMPD_distribute or OMPD_simd depending
-  /// on the parameter of the bind clause. In the methods for the
-  /// mapped directives, check the parameters of the lastprivate clause.
-  bool checkLastPrivateForMappedDirectives(ArrayRef<OMPClause *> Clauses);
-  /// Depending on the bind clause of OMPD_loop map the directive to new
-  /// directives.
-  ///    1) loop bind(parallel) --> OMPD_for
-  ///    2) loop bind(teams) --> OMPD_distribute
-  ///    3) loop bind(thread) --> OMPD_simd
-  /// This is being handled in Sema instead of Codegen because of the need for
-  /// rigorous semantic checking in the new mapped directives.
-  bool mapLoopConstruct(llvm::SmallVector<OMPClause *> &ClausesWithoutBind,
-                        ArrayRef<OMPClause *> Clauses,
-                        OpenMPBindClauseKind &BindKind,
-                        OpenMPDirectiveKind &Kind,
-                        OpenMPDirectiveKind &PrevMappedDirective,
-                        SourceLocation StartLoc, SourceLocation EndLoc,
-                        const DeclarationNameInfo &DirName,
-                        OpenMPDirectiveKind CancelRegion);
-
-  ///@}
 };
 
 DeductionFailureInfo
diff --git a/clang/include/clang/Sema/SemaOpenMP.h b/clang/include/clang/Sema/SemaOpenMP.h
new file mode 100644
index 000000000000..9927459bbc59
--- /dev/null
+++ b/clang/include/clang/Sema/SemaOpenMP.h
@@ -0,0 +1,1447 @@
+//===----- SemaOpenMP.h -- Semantic Analysis for OpenMP constructs -------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+/// \file
+/// This file declares semantic analysis for OpenMP constructs and
+/// clauses.
+///
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_SEMA_SEMAOPENMP_H
+#define LLVM_CLANG_SEMA_SEMAOPENMP_H
+
+#include "clang/AST/Attr.h"
+#include "clang/AST/Decl.h"
+#include "clang/AST/DeclBase.h"
+#include "clang/AST/DeclOpenMP.h"
+#include "clang/AST/DeclarationName.h"
+#include "clang/AST/Expr.h"
+#include "clang/AST/ExprOpenMP.h"
+#include "clang/AST/OpenMPClause.h"
+#include "clang/AST/Stmt.h"
+#include "clang/AST/StmtOpenMP.h"
+#include "clang/AST/Type.h"
+#include "clang/Basic/IdentifierTable.h"
+#include "clang/Basic/LLVM.h"
+#include "clang/Basic/OpenMPKinds.h"
+#include "clang/Basic/SourceLocation.h"
+#include "clang/Basic/Specifiers.h"
+#include "clang/Sema/DeclSpec.h"
+#include "clang/Sema/Ownership.h"
+#include "clang/Sema/Scope.h"
+#include "clang/Sema/ScopeInfo.h"
+#include "clang/Sema/SemaBase.h"
+#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/PointerUnion.h"
+#include <optional>
+#include <string>
+#include <utility>
+
+namespace clang {
+
+class SemaOpenMP : public SemaBase {
+public:
+  SemaOpenMP(Sema &S);
+
+  friend class Parser;
+  friend class Sema;
+
+  using DeclGroupPtrTy = OpaquePtr<DeclGroupRef>;
+  using CapturedParamNameType = std::pair<StringRef, QualType>;
+
+  /// Creates a SemaDiagnosticBuilder that emits the diagnostic if the current
+  /// context is "used as device code".
+  ///
+  /// - If CurContext is a `declare target` function or it is known that the
+  /// function is emitted for the device, emits the diagnostics immediately.
+  /// - If CurContext is a non-`declare target` function and we are compiling
+  ///   for the device, creates a diagnostic which is emitted if and when we
+  ///   realize that the function will be codegen'ed.
+  ///
+  /// Example usage:
+  ///
+  ///  // Variable-length arrays are not allowed in NVPTX device code.
+  ///  if (diagIfOpenMPDeviceCode(Loc, diag::err_vla_unsupported))
+  ///    return ExprError();
+  ///  // Otherwise, continue parsing as normal.
+  SemaDiagnosticBuilder diagIfOpenMPDeviceCode(SourceLocation Loc,
+                                               unsigned DiagID,
+                                               const FunctionDecl *FD);
+
+  /// Creates a SemaDiagnosticBuilder that emits the diagnostic if the current
+  /// context is "used as host code".
+  ///
+  /// - If CurContext is a `declare target` function or it is known that the
+  /// function is emitted for the host, emits the diagnostics immediately.
+  /// - If CurContext is a non-host function, just ignore it.
+  ///
+  /// Example usage:
+  ///
+  ///  // Variable-length arrays are not allowed in NVPTX device code.
+  ///  if (diagIfOpenMPHostode(Loc, diag::err_vla_unsupported))
+  ///    return ExprError();
+  ///  // Otherwise, continue parsing as normal.
+  SemaDiagnosticBuilder diagIfOpenMPHostCode(SourceLocation Loc,
+                                             unsigned DiagID,
+                                             const FunctionDecl *FD);
+
+  /// The declarator \p D defines a function in the scope \p S which is nested
+  /// in an `omp begin/end declare variant` scope. In this method we create a
+  /// declaration for \p D and rename \p D according to the OpenMP context
+  /// selector of the surrounding scope. Return all base functions in \p Bases.
+  void ActOnStartOfFunctionDefinitionInOpenMPDeclareVariantScope(
+      Scope *S, Declarator &D, MultiTemplateParamsArg TemplateParameterLists,
+      SmallVectorImpl<FunctionDecl *> &Bases);
+
+  /// Register \p D as specialization of all base functions in \p Bases in the
+  /// current `omp begin/end declare variant` scope.
+  void ActOnFinishedFunctionDefinitionInOpenMPDeclareVariantScope(
+      Decl *D, SmallVectorImpl<FunctionDecl *> &Bases);
+
+  /// Act on \p D, a function definition inside of an `omp [begin/end] assumes`.
+  void ActOnFinishedFunctionDefinitionInOpenMPAssumeScope(Decl *D);
+
+  /// Can we exit an OpenMP declare variant scope at the moment.
+  bool isInOpenMPDeclareVariantScope() const {
+    return !OMPDeclareVariantScopes.empty();
+  }
+
+  ExprResult
+  VerifyPositiveIntegerConstantInClause(Expr *Op, OpenMPClauseKind CKind,
+                                        bool StrictlyPositive = true,
+                                        bool SuppressExprDiags = false);
+
+  /// Given the potential call expression \p Call, determine if there is a
+  /// specialization via the OpenMP declare variant mechanism available. If
+  /// there is, return the specialized call expression, otherwise return the
+  /// original \p Call.
+  ExprResult ActOnOpenMPCall(ExprResult Call, Scope *Scope,
+                             SourceLocation LParenLoc, MultiExprArg ArgExprs,
+                             SourceLocation RParenLoc, Expr *ExecConfig);
+
+  /// Handle a `omp begin declare variant`.
+  void ActOnOpenMPBeginDeclareVariant(SourceLocation Loc, OMPTraitInfo &TI);
+
+  /// Handle a `omp end declare variant`.
+  void ActOnOpenMPEndDeclareVariant();
+
+  /// Function tries to capture lambda's captured variables in the OpenMP region
+  /// before the original lambda is captured.
+  void tryCaptureOpenMPLambdas(ValueDecl *V);
+
+  /// Return true if the provided declaration \a VD should be captured by
+  /// reference.
+  /// \param Level Relative level of nested OpenMP construct for that the check
+  /// is performed.
+  /// \param OpenMPCaptureLevel Capture level within an OpenMP construct.
+  bool isOpenMPCapturedByRef(const ValueDecl *D, unsigned Level,
+                             unsigned OpenMPCaptureLevel) const;
+
+  /// Check if the specified variable is used in one of the private
+  /// clauses (private, firstprivate, lastprivate, reduction etc.) in OpenMP
+  /// constructs.
+  VarDecl *isOpenMPCapturedDecl(ValueDecl *D, bool CheckScopeInfo = false,
+                                unsigned StopAt = 0);
+
+  /// The member expression(this->fd) needs to be rebuilt in the template
+  /// instantiation to generate private copy for OpenMP when default
+  /// clause is used. The function will return true if default
+  /// cluse is used.
+  bool isOpenMPRebuildMemberExpr(ValueDecl *D);
+
+  ExprResult getOpenMPCapturedExpr(VarDecl *Capture, ExprValueKind VK,
+                                   ExprObjectKind OK, SourceLocation Loc);
+
+  /// If the current region is a loop-based region, mark the start of the loop
+  /// construct.
+  void startOpenMPLoop();
+
+  /// If the current region is a range loop-based region, mark the start of the
+  /// loop construct.
+  void startOpenMPCXXRangeFor();
+
+  /// Check if the specified variable is used in 'private' clause.
+  /// \param Level Relative level of nested OpenMP construct for that the check
+  /// is performed.
+  OpenMPClauseKind isOpenMPPrivateDecl(ValueDecl *D, unsigned Level,
+                                       unsigned CapLevel) const;
+
+  /// Sets OpenMP capture kind (OMPC_private, OMPC_firstprivate, OMPC_map etc.)
+  /// for \p FD based on DSA for the provided corresponding captured declaration
+  /// \p D.
+  void setOpenMPCaptureKind(FieldDecl *FD, const ValueDecl *D, unsigned Level);
+
+  /// Check if the specified variable is captured  by 'target' directive.
+  /// \param Level Relative level of nested OpenMP construct for that the check
+  /// is performed.
+  bool isOpenMPTargetCapturedDecl(const ValueDecl *D, unsigned Level,
+                                  unsigned CaptureLevel) const;
+
+  /// Check if the specified global variable must be captured  by outer capture
+  /// regions.
+  /// \param Level Relative level of nested OpenMP construct for that
+  /// the check is performed.
+  bool isOpenMPGlobalCapturedDecl(ValueDecl *D, unsigned Level,
+                                  unsigned CaptureLevel) const;
+
+  ExprResult PerformOpenMPImplicitIntegerConversion(SourceLocation OpLoc,
+                                                    Expr *Op);
+  /// Called on start of new data sharing attribute block.
+  void StartOpenMPDSABlock(OpenMPDirectiveKind K,
+                           const DeclarationNameInfo &DirName, Scope *CurScope,
+                           SourceLocation Loc);
+  /// Start analysis of clauses.
+  void StartOpenMPClause(OpenMPClauseKind K);
+  /// End analysis of clauses.
+  void EndOpenMPClause();
+  /// Called on end of data sharing attribute block.
+  void EndOpenMPDSABlock(Stmt *CurDirective);
+
+  /// Check if the current region is an OpenMP loop region and if it is,
+  /// mark loop control variable, used in \p Init for loop initialization, as
+  /// private by default.
+  /// \param Init First part of the for loop.
+  void ActOnOpenMPLoopInitialization(SourceLocation ForLoc, Stmt *Init);
+
+  /// Called on well-formed '\#pragma omp metadirective' after parsing
+  /// of the  associated statement.
+  StmtResult ActOnOpenMPMetaDirective(ArrayRef<OMPClause *> Clauses,
+                                      Stmt *AStmt, SourceLocation StartLoc,
+                                      SourceLocation EndLoc);
+
+  // OpenMP directives and clauses.
+  /// Called on correct id-expression from the '#pragma omp
+  /// threadprivate'.
+  ExprResult ActOnOpenMPIdExpression(Scope *CurScope, CXXScopeSpec &ScopeSpec,
+                                     const DeclarationNameInfo &Id,
+                                     OpenMPDirectiveKind Kind);
+  /// Called on well-formed '#pragma omp threadprivate'.
+  DeclGroupPtrTy ActOnOpenMPThreadprivateDirective(SourceLocation Loc,
+                                                   ArrayRef<Expr *> VarList);
+  /// Builds a new OpenMPThreadPrivateDecl and checks its correctness.
+  OMPThreadPrivateDecl *CheckOMPThreadPrivateDecl(SourceLocation Loc,
+                                                  ArrayRef<Expr *> VarList);
+  /// Called on well-formed '#pragma omp allocate'.
+  DeclGroupPtrTy ActOnOpenMPAllocateDirective(SourceLocation Loc,
+                                              ArrayRef<Expr *> VarList,
+                                              ArrayRef<OMPClause *> Clauses,
+                                              DeclContext *Owner = nullptr);
+
+  /// Called on well-formed '#pragma omp [begin] assume[s]'.
+  void ActOnOpenMPAssumesDirective(SourceLocation Loc,
+                                   OpenMPDirectiveKind DKind,
+                                   ArrayRef<std::string> Assumptions,
+                                   bool SkippedClauses);
+
+  /// Check if there is an active global `omp begin assumes` directive.
+  bool isInOpenMPAssumeScope() const { return !OMPAssumeScoped.empty(); }
+
+  /// Check if there is an active global `omp assumes` directive.
+  bool hasGlobalOpenMPAssumes() const { return !OMPAssumeGlobal.empty(); }
+
+  /// Called on well-formed '#pragma omp end assumes'.
+  void ActOnOpenMPEndAssumesDirective();
+
+  /// Called on well-formed '#pragma omp requires'.
+  DeclGroupPtrTy ActOnOpenMPRequiresDirective(SourceLocation Loc,
+                                              ArrayRef<OMPClause *> ClauseList);
+  /// Check restrictions on Requires directive
+  OMPRequiresDecl *CheckOMPRequiresDecl(SourceLocation Loc,
+                                        ArrayRef<OMPClause *> Clauses);
+  /// Check if the specified type is allowed to be used in 'omp declare
+  /// reduction' construct.
+  QualType ActOnOpenMPDeclareReductionType(SourceLocation TyLoc,
+                                           TypeResult ParsedType);
+  /// Called on start of '#pragma omp declare reduction'.
+  DeclGroupPtrTy ActOnOpenMPDeclareReductionDirectiveStart(
+      Scope *S, DeclContext *DC, DeclarationName Name,
+      ArrayRef<std::pair<QualType, SourceLocation>> ReductionTypes,
+      AccessSpecifier AS, Decl *PrevDeclInScope = nullptr);
+  /// Initialize declare reduction construct initializer.
+  void ActOnOpenMPDeclareReductionCombinerStart(Scope *S, Decl *D);
+  /// Finish current declare reduction construct initializer.
+  void ActOnOpenMPDeclareReductionCombinerEnd(Decl *D, Expr *Combiner);
+  /// Initialize declare reduction construct initializer.
+  /// \return omp_priv variable.
+  VarDecl *ActOnOpenMPDeclareReductionInitializerStart(Scope *S, Decl *D);
+  /// Finish current declare reduction construct initializer.
+  void ActOnOpenMPDeclareReductionInitializerEnd(Decl *D, Expr *Initializer,
+                                                 VarDecl *OmpPrivParm);
+  /// Called at the end of '#pragma omp declare reduction'.
+  DeclGroupPtrTy ActOnOpenMPDeclareReductionDirectiveEnd(
+      Scope *S, DeclGroupPtrTy DeclReductions, bool IsValid);
+
+  /// Check variable declaration in 'omp declare mapper' construct.
+  TypeResult ActOnOpenMPDeclareMapperVarDecl(Scope *S, Declarator &D);
+  /// Check if the specified type is allowed to be used in 'omp declare
+  /// mapper' construct.
+  QualType ActOnOpenMPDeclareMapperType(SourceLocation TyLoc,
+                                        TypeResult ParsedType);
+  /// Called on start of '#pragma omp declare mapper'.
+  DeclGroupPtrTy ActOnOpenMPDeclareMapperDirective(
+      Scope *S, DeclContext *DC, DeclarationName Name, QualType MapperType,
+      SourceLocation StartLoc, DeclarationName VN, AccessSpecifier AS,
+      Expr *MapperVarRef, ArrayRef<OMPClause *> Clauses,
+      Decl *PrevDeclInScope = nullptr);
+  /// Build the mapper variable of '#pragma omp declare mapper'.
+  ExprResult ActOnOpenMPDeclareMapperDirectiveVarDecl(Scope *S,
+                                                      QualType MapperType,
+                                                      SourceLocation StartLoc,
+                                                      DeclarationName VN);
+  void ActOnOpenMPIteratorVarDecl(VarDecl *VD);
+  bool isOpenMPDeclareMapperVarDeclAllowed(const VarDecl *VD) const;
+  const ValueDecl *getOpenMPDeclareMapperVarName() const;
+
+  struct DeclareTargetContextInfo {
+    struct MapInfo {
+      OMPDeclareTargetDeclAttr::MapTypeTy MT;
+      SourceLocation Loc;
+    };
+    /// Explicitly listed variables and functions in a 'to' or 'link' clause.
+    llvm::DenseMap<NamedDecl *, MapInfo> ExplicitlyMapped;
+
+    /// The 'device_type' as parsed from the clause.
+    OMPDeclareTargetDeclAttr::DevTypeTy DT = OMPDeclareTargetDeclAttr::DT_Any;
+
+    /// The directive kind, `begin declare target` or `declare target`.
+    OpenMPDirectiveKind Kind;
+
+    /// The directive with indirect clause.
+    std::optional<Expr *> Indirect;
+
+    /// The directive location.
+    SourceLocation Loc;
+
+    DeclareTargetContextInfo(OpenMPDirectiveKind Kind, SourceLocation Loc)
+        : Kind(Kind), Loc(Loc) {}
+  };
+
+  /// Called on the start of target region i.e. '#pragma omp declare target'.
+  bool ActOnStartOpenMPDeclareTargetContext(DeclareTargetContextInfo &DTCI);
+
+  /// Called at the end of target region i.e. '#pragma omp end declare target'.
+  const DeclareTargetContextInfo ActOnOpenMPEndDeclareTargetDirective();
+
+  /// Called once a target context is completed, that can be when a
+  /// '#pragma omp end declare target' was encountered or when a
+  /// '#pragma omp declare target' without declaration-definition-seq was
+  /// encountered.
+  void ActOnFinishedOpenMPDeclareTargetContext(DeclareTargetContextInfo &DTCI);
+
+  /// Report unterminated 'omp declare target' or 'omp begin declare target' at
+  /// the end of a compilation unit.
+  void DiagnoseUnterminatedOpenMPDeclareTarget();
+
+  /// Searches for the provided declaration name for OpenMP declare target
+  /// directive.
+  NamedDecl *lookupOpenMPDeclareTargetName(Scope *CurScope,
+                                           CXXScopeSpec &ScopeSpec,
+                                           const DeclarationNameInfo &Id);
+
+  /// Called on correct id-expression from the '#pragma omp declare target'.
+  void ActOnOpenMPDeclareTargetName(NamedDecl *ND, SourceLocation Loc,
+                                    OMPDeclareTargetDeclAttr::MapTypeTy MT,
+                                    DeclareTargetContextInfo &DTCI);
+
+  /// Check declaration inside target region.
+  void
+  checkDeclIsAllowedInOpenMPTarget(Expr *E, Decl *D,
+                                   SourceLocation IdLoc = SourceLocation());
+
+  /// Adds OMPDeclareTargetDeclAttr to referenced variables in declare target
+  /// directive.
+  void ActOnOpenMPDeclareTargetInitializer(Decl *D);
+
+  /// Finishes analysis of the deferred functions calls that may be declared as
+  /// host/nohost during device/host compilation.
+  void finalizeOpenMPDelayedAnalysis(const FunctionDecl *Caller,
+                                     const FunctionDecl *Callee,
+                                     SourceLocation Loc);
+
+  /// Return true if currently in OpenMP task with untied clause context.
+  bool isInOpenMPTaskUntiedContext() const;
+
+  /// Return true inside OpenMP declare target region.
+  bool isInOpenMPDeclareTargetContext() const {
+    return !DeclareTargetNesting.empty();
+  }
+  /// Return true inside OpenMP target region.
+  bool isInOpenMPTargetExecutionDirective() const;
+
+  /// Return the number of captured regions created for an OpenMP directive.
+  static int getOpenMPCaptureLevels(OpenMPDirectiveKind Kind);
+
+  /// Initialization of captured region for OpenMP region.
+  void ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope);
+
+  /// Called for syntactical loops (ForStmt or CXXForRangeStmt) associated to
+  /// an OpenMP loop directive.
+  StmtResult ActOnOpenMPCanonicalLoop(Stmt *AStmt);
+
+  /// Process a canonical OpenMP loop nest that can either be a canonical
+  /// literal loop (ForStmt or CXXForRangeStmt), or the generated loop of an
+  /// OpenMP loop transformation construct.
+  StmtResult ActOnOpenMPLoopnest(Stmt *AStmt);
+
+  /// End of OpenMP region.
+  ///
+  /// \param S Statement associated with the current OpenMP region.
+  /// \param Clauses List of clauses for the current OpenMP region.
+  ///
+  /// \returns Statement for finished OpenMP region.
+  StmtResult ActOnOpenMPRegionEnd(StmtResult S, ArrayRef<OMPClause *> Clauses);
+  StmtResult ActOnOpenMPExecutableDirective(
+      OpenMPDirectiveKind Kind, const DeclarationNameInfo &DirName,
+      OpenMPDirectiveKind CancelRegion, ArrayRef<OMPClause *> Clauses,
+      Stmt *AStmt, SourceLocation StartLoc, SourceLocation EndLoc,
+      OpenMPDirectiveKind PrevMappedDirective = llvm::omp::OMPD_unknown);
+  /// Called on well-formed '\#pragma omp parallel' after parsing
+  /// of the  associated statement.
+  StmtResult ActOnOpenMPParallelDirective(ArrayRef<OMPClause *> Clauses,
+                                          Stmt *AStmt, SourceLocation StartLoc,
+                                          SourceLocation EndLoc);
+  using VarsWithInheritedDSAType =
+      llvm::SmallDenseMap<const ValueDecl *, const Expr *, 4>;
+  /// Called on well-formed '\#pragma omp simd' after parsing
+  /// of the associated statement.
+  StmtResult
+  ActOnOpenMPSimdDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
+                           SourceLocation StartLoc, SourceLocation EndLoc,
+                           VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '#pragma omp tile' after parsing of its clauses and
+  /// the associated statement.
+  StmtResult ActOnOpenMPTileDirective(ArrayRef<OMPClause *> Clauses,
+                                      Stmt *AStmt, SourceLocation StartLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed '#pragma omp unroll' after parsing of its clauses
+  /// and the associated statement.
+  StmtResult ActOnOpenMPUnrollDirective(ArrayRef<OMPClause *> Clauses,
+                                        Stmt *AStmt, SourceLocation StartLoc,
+                                        SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp for' after parsing
+  /// of the associated statement.
+  StmtResult
+  ActOnOpenMPForDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
+                          SourceLocation StartLoc, SourceLocation EndLoc,
+                          VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp for simd' after parsing
+  /// of the associated statement.
+  StmtResult
+  ActOnOpenMPForSimdDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
+                              SourceLocation StartLoc, SourceLocation EndLoc,
+                              VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp sections' after parsing
+  /// of the associated statement.
+  StmtResult ActOnOpenMPSectionsDirective(ArrayRef<OMPClause *> Clauses,
+                                          Stmt *AStmt, SourceLocation StartLoc,
+                                          SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp section' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPSectionDirective(Stmt *AStmt, SourceLocation StartLoc,
+                                         SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp scope' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPScopeDirective(ArrayRef<OMPClause *> Clauses,
+                                       Stmt *AStmt, SourceLocation StartLoc,
+                                       SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp single' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPSingleDirective(ArrayRef<OMPClause *> Clauses,
+                                        Stmt *AStmt, SourceLocation StartLoc,
+                                        SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp master' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPMasterDirective(Stmt *AStmt, SourceLocation StartLoc,
+                                        SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp critical' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPCriticalDirective(const DeclarationNameInfo &DirName,
+                                          ArrayRef<OMPClause *> Clauses,
+                                          Stmt *AStmt, SourceLocation StartLoc,
+                                          SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp parallel for' after parsing
+  /// of the  associated statement.
+  StmtResult ActOnOpenMPParallelForDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp parallel for simd' after
+  /// parsing of the  associated statement.
+  StmtResult ActOnOpenMPParallelForSimdDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp parallel master' after
+  /// parsing of the  associated statement.
+  StmtResult ActOnOpenMPParallelMasterDirective(ArrayRef<OMPClause *> Clauses,
+                                                Stmt *AStmt,
+                                                SourceLocation StartLoc,
+                                                SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp parallel masked' after
+  /// parsing of the associated statement.
+  StmtResult ActOnOpenMPParallelMaskedDirective(ArrayRef<OMPClause *> Clauses,
+                                                Stmt *AStmt,
+                                                SourceLocation StartLoc,
+                                                SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp parallel sections' after
+  /// parsing of the  associated statement.
+  StmtResult ActOnOpenMPParallelSectionsDirective(ArrayRef<OMPClause *> Clauses,
+                                                  Stmt *AStmt,
+                                                  SourceLocation StartLoc,
+                                                  SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp task' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPTaskDirective(ArrayRef<OMPClause *> Clauses,
+                                      Stmt *AStmt, SourceLocation StartLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp taskyield'.
+  StmtResult ActOnOpenMPTaskyieldDirective(SourceLocation StartLoc,
+                                           SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp error'.
+  /// Error direcitive is allowed in both declared and excutable contexts.
+  /// Adding InExContext to identify which context is called from.
+  StmtResult ActOnOpenMPErrorDirective(ArrayRef<OMPClause *> Clauses,
+                                       SourceLocation StartLoc,
+                                       SourceLocation EndLoc,
+                                       bool InExContext = true);
+  /// Called on well-formed '\#pragma omp barrier'.
+  StmtResult ActOnOpenMPBarrierDirective(SourceLocation StartLoc,
+                                         SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp taskwait'.
+  StmtResult ActOnOpenMPTaskwaitDirective(ArrayRef<OMPClause *> Clauses,
+                                          SourceLocation StartLoc,
+                                          SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp taskgroup'.
+  StmtResult ActOnOpenMPTaskgroupDirective(ArrayRef<OMPClause *> Clauses,
+                                           Stmt *AStmt, SourceLocation StartLoc,
+                                           SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp flush'.
+  StmtResult ActOnOpenMPFlushDirective(ArrayRef<OMPClause *> Clauses,
+                                       SourceLocation StartLoc,
+                                       SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp depobj'.
+  StmtResult ActOnOpenMPDepobjDirective(ArrayRef<OMPClause *> Clauses,
+                                        SourceLocation StartLoc,
+                                        SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp scan'.
+  StmtResult ActOnOpenMPScanDirective(ArrayRef<OMPClause *> Clauses,
+                                      SourceLocation StartLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp ordered' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPOrderedDirective(ArrayRef<OMPClause *> Clauses,
+                                         Stmt *AStmt, SourceLocation StartLoc,
+                                         SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp atomic' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
+                                        Stmt *AStmt, SourceLocation StartLoc,
+                                        SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp target' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPTargetDirective(ArrayRef<OMPClause *> Clauses,
+                                        Stmt *AStmt, SourceLocation StartLoc,
+                                        SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp target data' after parsing of
+  /// the associated statement.
+  StmtResult ActOnOpenMPTargetDataDirective(ArrayRef<OMPClause *> Clauses,
+                                            Stmt *AStmt,
+                                            SourceLocation StartLoc,
+                                            SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp target enter data' after
+  /// parsing of the associated statement.
+  StmtResult ActOnOpenMPTargetEnterDataDirective(ArrayRef<OMPClause *> Clauses,
+                                                 SourceLocation StartLoc,
+                                                 SourceLocation EndLoc,
+                                                 Stmt *AStmt);
+  /// Called on well-formed '\#pragma omp target exit data' after
+  /// parsing of the associated statement.
+  StmtResult ActOnOpenMPTargetExitDataDirective(ArrayRef<OMPClause *> Clauses,
+                                                SourceLocation StartLoc,
+                                                SourceLocation EndLoc,
+                                                Stmt *AStmt);
+  /// Called on well-formed '\#pragma omp target parallel' after
+  /// parsing of the associated statement.
+  StmtResult ActOnOpenMPTargetParallelDirective(ArrayRef<OMPClause *> Clauses,
+                                                Stmt *AStmt,
+                                                SourceLocation StartLoc,
+                                                SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp target parallel for' after
+  /// parsing of the  associated statement.
+  StmtResult ActOnOpenMPTargetParallelForDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp teams' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPTeamsDirective(ArrayRef<OMPClause *> Clauses,
+                                       Stmt *AStmt, SourceLocation StartLoc,
+                                       SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp teams loop' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPTeamsGenericLoopDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp target teams loop' after parsing of
+  /// the associated statement.
+  StmtResult ActOnOpenMPTargetTeamsGenericLoopDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp parallel loop' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPParallelGenericLoopDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp target parallel loop' after parsing
+  /// of the associated statement.
+  StmtResult ActOnOpenMPTargetParallelGenericLoopDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp cancellation point'.
+  StmtResult
+  ActOnOpenMPCancellationPointDirective(SourceLocation StartLoc,
+                                        SourceLocation EndLoc,
+                                        OpenMPDirectiveKind CancelRegion);
+  /// Called on well-formed '\#pragma omp cancel'.
+  StmtResult ActOnOpenMPCancelDirective(ArrayRef<OMPClause *> Clauses,
+                                        SourceLocation StartLoc,
+                                        SourceLocation EndLoc,
+                                        OpenMPDirectiveKind CancelRegion);
+  /// Called on well-formed '\#pragma omp taskloop' after parsing of the
+  /// associated statement.
+  StmtResult
+  ActOnOpenMPTaskLoopDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
+                               SourceLocation StartLoc, SourceLocation EndLoc,
+                               VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp taskloop simd' after parsing of
+  /// the associated statement.
+  StmtResult ActOnOpenMPTaskLoopSimdDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp master taskloop' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPMasterTaskLoopDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp master taskloop simd' after parsing of
+  /// the associated statement.
+  StmtResult ActOnOpenMPMasterTaskLoopSimdDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp parallel master taskloop' after
+  /// parsing of the associated statement.
+  StmtResult ActOnOpenMPParallelMasterTaskLoopDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp parallel master taskloop simd' after
+  /// parsing of the associated statement.
+  StmtResult ActOnOpenMPParallelMasterTaskLoopSimdDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp masked taskloop' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPMaskedTaskLoopDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp masked taskloop simd' after parsing of
+  /// the associated statement.
+  StmtResult ActOnOpenMPMaskedTaskLoopSimdDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp parallel masked taskloop' after
+  /// parsing of the associated statement.
+  StmtResult ActOnOpenMPParallelMaskedTaskLoopDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp parallel masked taskloop simd' after
+  /// parsing of the associated statement.
+  StmtResult ActOnOpenMPParallelMaskedTaskLoopSimdDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp distribute' after parsing
+  /// of the associated statement.
+  StmtResult
+  ActOnOpenMPDistributeDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
+                                 SourceLocation StartLoc, SourceLocation EndLoc,
+                                 VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp target update'.
+  StmtResult ActOnOpenMPTargetUpdateDirective(ArrayRef<OMPClause *> Clauses,
+                                              SourceLocation StartLoc,
+                                              SourceLocation EndLoc,
+                                              Stmt *AStmt);
+  /// Called on well-formed '\#pragma omp distribute parallel for' after
+  /// parsing of the associated statement.
+  StmtResult ActOnOpenMPDistributeParallelForDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp distribute parallel for simd'
+  /// after parsing of the associated statement.
+  StmtResult ActOnOpenMPDistributeParallelForSimdDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp distribute simd' after
+  /// parsing of the associated statement.
+  StmtResult ActOnOpenMPDistributeSimdDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp target parallel for simd' after
+  /// parsing of the associated statement.
+  StmtResult ActOnOpenMPTargetParallelForSimdDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp target simd' after parsing of
+  /// the associated statement.
+  StmtResult
+  ActOnOpenMPTargetSimdDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
+                                 SourceLocation StartLoc, SourceLocation EndLoc,
+                                 VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp teams distribute' after parsing of
+  /// the associated statement.
+  StmtResult ActOnOpenMPTeamsDistributeDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp teams distribute simd' after parsing
+  /// of the associated statement.
+  StmtResult ActOnOpenMPTeamsDistributeSimdDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp teams distribute parallel for simd'
+  /// after parsing of the associated statement.
+  StmtResult ActOnOpenMPTeamsDistributeParallelForSimdDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp teams distribute parallel for'
+  /// after parsing of the associated statement.
+  StmtResult ActOnOpenMPTeamsDistributeParallelForDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp target teams' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPTargetTeamsDirective(ArrayRef<OMPClause *> Clauses,
+                                             Stmt *AStmt,
+                                             SourceLocation StartLoc,
+                                             SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp target teams distribute' after parsing
+  /// of the associated statement.
+  StmtResult ActOnOpenMPTargetTeamsDistributeDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp target teams distribute parallel for'
+  /// after parsing of the associated statement.
+  StmtResult ActOnOpenMPTargetTeamsDistributeParallelForDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp target teams distribute parallel for
+  /// simd' after parsing of the associated statement.
+  StmtResult ActOnOpenMPTargetTeamsDistributeParallelForSimdDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp target teams distribute simd' after
+  /// parsing of the associated statement.
+  StmtResult ActOnOpenMPTargetTeamsDistributeSimdDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp interop'.
+  StmtResult ActOnOpenMPInteropDirective(ArrayRef<OMPClause *> Clauses,
+                                         SourceLocation StartLoc,
+                                         SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp dispatch' after parsing of the
+  // /associated statement.
+  StmtResult ActOnOpenMPDispatchDirective(ArrayRef<OMPClause *> Clauses,
+                                          Stmt *AStmt, SourceLocation StartLoc,
+                                          SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp masked' after parsing of the
+  // /associated statement.
+  StmtResult ActOnOpenMPMaskedDirective(ArrayRef<OMPClause *> Clauses,
+                                        Stmt *AStmt, SourceLocation StartLoc,
+                                        SourceLocation EndLoc);
+
+  /// Called on well-formed '\#pragma omp loop' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPGenericLoopDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+
+  /// Checks correctness of linear modifiers.
+  bool CheckOpenMPLinearModifier(OpenMPLinearClauseKind LinKind,
+                                 SourceLocation LinLoc);
+  /// Checks that the specified declaration matches requirements for the linear
+  /// decls.
+  bool CheckOpenMPLinearDecl(const ValueDecl *D, SourceLocation ELoc,
+                             OpenMPLinearClauseKind LinKind, QualType Type,
+                             bool IsDeclareSimd = false);
+
+  /// Called on well-formed '\#pragma omp declare simd' after parsing of
+  /// the associated method/function.
+  DeclGroupPtrTy ActOnOpenMPDeclareSimdDirective(
+      DeclGroupPtrTy DG, OMPDeclareSimdDeclAttr::BranchStateTy BS,
+      Expr *Simdlen, ArrayRef<Expr *> Uniforms, ArrayRef<Expr *> Aligneds,
+      ArrayRef<Expr *> Alignments, ArrayRef<Expr *> Linears,
+      ArrayRef<unsigned> LinModifiers, ArrayRef<Expr *> Steps, SourceRange SR);
+
+  /// Checks '\#pragma omp declare variant' variant function and original
+  /// functions after parsing of the associated method/function.
+  /// \param DG Function declaration to which declare variant directive is
+  /// applied to.
+  /// \param VariantRef Expression that references the variant function, which
+  /// must be used instead of the original one, specified in \p DG.
+  /// \param TI The trait info object representing the match clause.
+  /// \param NumAppendArgs The number of omp_interop_t arguments to account for
+  /// in checking.
+  /// \returns std::nullopt, if the function/variant function are not compatible
+  /// with the pragma, pair of original function/variant ref expression
+  /// otherwise.
+  std::optional<std::pair<FunctionDecl *, Expr *>>
+  checkOpenMPDeclareVariantFunction(DeclGroupPtrTy DG, Expr *VariantRef,
+                                    OMPTraitInfo &TI, unsigned NumAppendArgs,
+                                    SourceRange SR);
+
+  /// Called on well-formed '\#pragma omp declare variant' after parsing of
+  /// the associated method/function.
+  /// \param FD Function declaration to which declare variant directive is
+  /// applied to.
+  /// \param VariantRef Expression that references the variant function, which
+  /// must be used instead of the original one, specified in \p DG.
+  /// \param TI The context traits associated with the function variant.
+  /// \param AdjustArgsNothing The list of 'nothing' arguments.
+  /// \param AdjustArgsNeedDevicePtr The list of 'need_device_ptr' arguments.
+  /// \param AppendArgs The list of 'append_args' arguments.
+  /// \param AdjustArgsLoc The Location of an 'adjust_args' clause.
+  /// \param AppendArgsLoc The Location of an 'append_args' clause.
+  /// \param SR The SourceRange of the 'declare variant' directive.
+  void ActOnOpenMPDeclareVariantDirective(
+      FunctionDecl *FD, Expr *VariantRef, OMPTraitInfo &TI,
+      ArrayRef<Expr *> AdjustArgsNothing,
+      ArrayRef<Expr *> AdjustArgsNeedDevicePtr,
+      ArrayRef<OMPInteropInfo> AppendArgs, SourceLocation AdjustArgsLoc,
+      SourceLocation AppendArgsLoc, SourceRange SR);
+
+  OMPClause *ActOnOpenMPSingleExprClause(OpenMPClauseKind Kind, Expr *Expr,
+                                         SourceLocation StartLoc,
+                                         SourceLocation LParenLoc,
+                                         SourceLocation EndLoc);
+  /// Called on well-formed 'allocator' clause.
+  OMPClause *ActOnOpenMPAllocatorClause(Expr *Allocator,
+                                        SourceLocation StartLoc,
+                                        SourceLocation LParenLoc,
+                                        SourceLocation EndLoc);
+  /// Called on well-formed 'if' clause.
+  OMPClause *ActOnOpenMPIfClause(OpenMPDirectiveKind NameModifier,
+                                 Expr *Condition, SourceLocation StartLoc,
+                                 SourceLocation LParenLoc,
+                                 SourceLocation NameModifierLoc,
+                                 SourceLocation ColonLoc,
+                                 SourceLocation EndLoc);
+  /// Called on well-formed 'final' clause.
+  OMPClause *ActOnOpenMPFinalClause(Expr *Condition, SourceLocation StartLoc,
+                                    SourceLocation LParenLoc,
+                                    SourceLocation EndLoc);
+  /// Called on well-formed 'num_threads' clause.
+  OMPClause *ActOnOpenMPNumThreadsClause(Expr *NumThreads,
+                                         SourceLocation StartLoc,
+                                         SourceLocation LParenLoc,
+                                         SourceLocation EndLoc);
+  /// Called on well-formed 'align' clause.
+  OMPClause *ActOnOpenMPAlignClause(Expr *Alignment, SourceLocation StartLoc,
+                                    SourceLocation LParenLoc,
+                                    SourceLocation EndLoc);
+  /// Called on well-formed 'safelen' clause.
+  OMPClause *ActOnOpenMPSafelenClause(Expr *Length, SourceLocation StartLoc,
+                                      SourceLocation LParenLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed 'simdlen' clause.
+  OMPClause *ActOnOpenMPSimdlenClause(Expr *Length, SourceLocation StartLoc,
+                                      SourceLocation LParenLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-form 'sizes' clause.
+  OMPClause *ActOnOpenMPSizesClause(ArrayRef<Expr *> SizeExprs,
+                                    SourceLocation StartLoc,
+                                    SourceLocation LParenLoc,
+                                    SourceLocation EndLoc);
+  /// Called on well-form 'full' clauses.
+  OMPClause *ActOnOpenMPFullClause(SourceLocation StartLoc,
+                                   SourceLocation EndLoc);
+  /// Called on well-form 'partial' clauses.
+  OMPClause *ActOnOpenMPPartialClause(Expr *FactorExpr, SourceLocation StartLoc,
+                                      SourceLocation LParenLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed 'collapse' clause.
+  OMPClause *ActOnOpenMPCollapseClause(Expr *NumForLoops,
+                                       SourceLocation StartLoc,
+                                       SourceLocation LParenLoc,
+                                       SourceLocation EndLoc);
+  /// Called on well-formed 'ordered' clause.
+  OMPClause *
+  ActOnOpenMPOrderedClause(SourceLocation StartLoc, SourceLocation EndLoc,
+                           SourceLocation LParenLoc = SourceLocation(),
+                           Expr *NumForLoops = nullptr);
+  /// Called on well-formed 'grainsize' clause.
+  OMPClause *ActOnOpenMPGrainsizeClause(OpenMPGrainsizeClauseModifier Modifier,
+                                        Expr *Size, SourceLocation StartLoc,
+                                        SourceLocation LParenLoc,
+                                        SourceLocation ModifierLoc,
+                                        SourceLocation EndLoc);
+  /// Called on well-formed 'num_tasks' clause.
+  OMPClause *ActOnOpenMPNumTasksClause(OpenMPNumTasksClauseModifier Modifier,
+                                       Expr *NumTasks, SourceLocation StartLoc,
+                                       SourceLocation LParenLoc,
+                                       SourceLocation ModifierLoc,
+                                       SourceLocation EndLoc);
+  /// Called on well-formed 'hint' clause.
+  OMPClause *ActOnOpenMPHintClause(Expr *Hint, SourceLocation StartLoc,
+                                   SourceLocation LParenLoc,
+                                   SourceLocation EndLoc);
+  /// Called on well-formed 'detach' clause.
+  OMPClause *ActOnOpenMPDetachClause(Expr *Evt, SourceLocation StartLoc,
+                                     SourceLocation LParenLoc,
+                                     SourceLocation EndLoc);
+
+  OMPClause *ActOnOpenMPSimpleClause(OpenMPClauseKind Kind, unsigned Argument,
+                                     SourceLocation ArgumentLoc,
+                                     SourceLocation StartLoc,
+                                     SourceLocation LParenLoc,
+                                     SourceLocation EndLoc);
+  /// Called on well-formed 'when' clause.
+  OMPClause *ActOnOpenMPWhenClause(OMPTraitInfo &TI, SourceLocation StartLoc,
+                                   SourceLocation LParenLoc,
+                                   SourceLocation EndLoc);
+  /// Called on well-formed 'default' clause.
+  OMPClause *ActOnOpenMPDefaultClause(llvm::omp::DefaultKind Kind,
+                                      SourceLocation KindLoc,
+                                      SourceLocation StartLoc,
+                                      SourceLocation LParenLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed 'proc_bind' clause.
+  OMPClause *ActOnOpenMPProcBindClause(llvm::omp::ProcBindKind Kind,
+                                       SourceLocation KindLoc,
+                                       SourceLocation StartLoc,
+                                       SourceLocation LParenLoc,
+                                       SourceLocation EndLoc);
+  /// Called on well-formed 'order' clause.
+  OMPClause *ActOnOpenMPOrderClause(OpenMPOrderClauseModifier Modifier,
+                                    OpenMPOrderClauseKind Kind,
+                                    SourceLocation StartLoc,
+                                    SourceLocation LParenLoc,
+                                    SourceLocation MLoc, SourceLocation KindLoc,
+                                    SourceLocation EndLoc);
+  /// Called on well-formed 'update' clause.
+  OMPClause *ActOnOpenMPUpdateClause(OpenMPDependClauseKind Kind,
+                                     SourceLocation KindLoc,
+                                     SourceLocation StartLoc,
+                                     SourceLocation LParenLoc,
+                                     SourceLocation EndLoc);
+
+  OMPClause *ActOnOpenMPSingleExprWithArgClause(
+      OpenMPClauseKind Kind, ArrayRef<unsigned> Arguments, Expr *Expr,
+      SourceLocation StartLoc, SourceLocation LParenLoc,
+      ArrayRef<SourceLocation> ArgumentsLoc, SourceLocation DelimLoc,
+      SourceLocation EndLoc);
+  /// Called on well-formed 'schedule' clause.
+  OMPClause *ActOnOpenMPScheduleClause(
+      OpenMPScheduleClauseModifier M1, OpenMPScheduleClauseModifier M2,
+      OpenMPScheduleClauseKind Kind, Expr *ChunkSize, SourceLocation StartLoc,
+      SourceLocation LParenLoc, SourceLocation M1Loc, SourceLocation M2Loc,
+      SourceLocation KindLoc, SourceLocation CommaLoc, SourceLocation EndLoc);
+
+  OMPClause *ActOnOpenMPClause(OpenMPClauseKind Kind, SourceLocation StartLoc,
+                               SourceLocation EndLoc);
+  /// Called on well-formed 'nowait' clause.
+  OMPClause *ActOnOpenMPNowaitClause(SourceLocation StartLoc,
+                                     SourceLocation EndLoc);
+  /// Called on well-formed 'untied' clause.
+  OMPClause *ActOnOpenMPUntiedClause(SourceLocation StartLoc,
+                                     SourceLocation EndLoc);
+  /// Called on well-formed 'mergeable' clause.
+  OMPClause *ActOnOpenMPMergeableClause(SourceLocation StartLoc,
+                                        SourceLocation EndLoc);
+  /// Called on well-formed 'read' clause.
+  OMPClause *ActOnOpenMPReadClause(SourceLocation StartLoc,
+                                   SourceLocation EndLoc);
+  /// Called on well-formed 'write' clause.
+  OMPClause *ActOnOpenMPWriteClause(SourceLocation StartLoc,
+                                    SourceLocation EndLoc);
+  /// Called on well-formed 'update' clause.
+  OMPClause *ActOnOpenMPUpdateClause(SourceLocation StartLoc,
+                                     SourceLocation EndLoc);
+  /// Called on well-formed 'capture' clause.
+  OMPClause *ActOnOpenMPCaptureClause(SourceLocation StartLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed 'compare' clause.
+  OMPClause *ActOnOpenMPCompareClause(SourceLocation StartLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed 'fail' clause.
+  OMPClause *ActOnOpenMPFailClause(SourceLocation StartLoc,
+                                   SourceLocation EndLoc);
+  OMPClause *ActOnOpenMPFailClause(OpenMPClauseKind Kind,
+                                   SourceLocation KindLoc,
+                                   SourceLocation StartLoc,
+                                   SourceLocation LParenLoc,
+                                   SourceLocation EndLoc);
+
+  /// Called on well-formed 'seq_cst' clause.
+  OMPClause *ActOnOpenMPSeqCstClause(SourceLocation StartLoc,
+                                     SourceLocation EndLoc);
+  /// Called on well-formed 'acq_rel' clause.
+  OMPClause *ActOnOpenMPAcqRelClause(SourceLocation StartLoc,
+                                     SourceLocation EndLoc);
+  /// Called on well-formed 'acquire' clause.
+  OMPClause *ActOnOpenMPAcquireClause(SourceLocation StartLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed 'release' clause.
+  OMPClause *ActOnOpenMPReleaseClause(SourceLocation StartLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed 'relaxed' clause.
+  OMPClause *ActOnOpenMPRelaxedClause(SourceLocation StartLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed 'weak' clause.
+  OMPClause *ActOnOpenMPWeakClause(SourceLocation StartLoc,
+                                   SourceLocation EndLoc);
+
+  /// Called on well-formed 'init' clause.
+  OMPClause *
+  ActOnOpenMPInitClause(Expr *InteropVar, OMPInteropInfo &InteropInfo,
+                        SourceLocation StartLoc, SourceLocation LParenLoc,
+                        SourceLocation VarLoc, SourceLocation EndLoc);
+
+  /// Called on well-formed 'use' clause.
+  OMPClause *ActOnOpenMPUseClause(Expr *InteropVar, SourceLocation StartLoc,
+                                  SourceLocation LParenLoc,
+                                  SourceLocation VarLoc, SourceLocation EndLoc);
+
+  /// Called on well-formed 'destroy' clause.
+  OMPClause *ActOnOpenMPDestroyClause(Expr *InteropVar, SourceLocation StartLoc,
+                                      SourceLocation LParenLoc,
+                                      SourceLocation VarLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed 'novariants' clause.
+  OMPClause *ActOnOpenMPNovariantsClause(Expr *Condition,
+                                         SourceLocation StartLoc,
+                                         SourceLocation LParenLoc,
+                                         SourceLocation EndLoc);
+  /// Called on well-formed 'nocontext' clause.
+  OMPClause *ActOnOpenMPNocontextClause(Expr *Condition,
+                                        SourceLocation StartLoc,
+                                        SourceLocation LParenLoc,
+                                        SourceLocation EndLoc);
+  /// Called on well-formed 'filter' clause.
+  OMPClause *ActOnOpenMPFilterClause(Expr *ThreadID, SourceLocation StartLoc,
+                                     SourceLocation LParenLoc,
+                                     SourceLocation EndLoc);
+  /// Called on well-formed 'threads' clause.
+  OMPClause *ActOnOpenMPThreadsClause(SourceLocation StartLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed 'simd' clause.
+  OMPClause *ActOnOpenMPSIMDClause(SourceLocation StartLoc,
+                                   SourceLocation EndLoc);
+  /// Called on well-formed 'nogroup' clause.
+  OMPClause *ActOnOpenMPNogroupClause(SourceLocation StartLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed 'unified_address' clause.
+  OMPClause *ActOnOpenMPUnifiedAddressClause(SourceLocation StartLoc,
+                                             SourceLocation EndLoc);
+
+  /// Called on well-formed 'unified_address' clause.
+  OMPClause *ActOnOpenMPUnifiedSharedMemoryClause(SourceLocation StartLoc,
+                                                  SourceLocation EndLoc);
+
+  /// Called on well-formed 'reverse_offload' clause.
+  OMPClause *ActOnOpenMPReverseOffloadClause(SourceLocation StartLoc,
+                                             SourceLocation EndLoc);
+
+  /// Called on well-formed 'dynamic_allocators' clause.
+  OMPClause *ActOnOpenMPDynamicAllocatorsClause(SourceLocation StartLoc,
+                                                SourceLocation EndLoc);
+
+  /// Called on well-formed 'atomic_default_mem_order' clause.
+  OMPClause *ActOnOpenMPAtomicDefaultMemOrderClause(
+      OpenMPAtomicDefaultMemOrderClauseKind Kind, SourceLocation KindLoc,
+      SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation EndLoc);
+
+  /// Called on well-formed 'at' clause.
+  OMPClause *ActOnOpenMPAtClause(OpenMPAtClauseKind Kind,
+                                 SourceLocation KindLoc,
+                                 SourceLocation StartLoc,
+                                 SourceLocation LParenLoc,
+                                 SourceLocation EndLoc);
+
+  /// Called on well-formed 'severity' clause.
+  OMPClause *ActOnOpenMPSeverityClause(OpenMPSeverityClauseKind Kind,
+                                       SourceLocation KindLoc,
+                                       SourceLocation StartLoc,
+                                       SourceLocation LParenLoc,
+                                       SourceLocation EndLoc);
+
+  /// Called on well-formed 'message' clause.
+  /// passing string for message.
+  OMPClause *ActOnOpenMPMessageClause(Expr *MS, SourceLocation StartLoc,
+                                      SourceLocation LParenLoc,
+                                      SourceLocation EndLoc);
+
+  /// Data used for processing a list of variables in OpenMP clauses.
+  struct OpenMPVarListDataTy final {
+    Expr *DepModOrTailExpr = nullptr;
+    Expr *IteratorExpr = nullptr;
+    SourceLocation ColonLoc;
+    SourceLocation RLoc;
+    CXXScopeSpec ReductionOrMapperIdScopeSpec;
+    DeclarationNameInfo ReductionOrMapperId;
+    int ExtraModifier = -1; ///< Additional modifier for linear, map, depend or
+                            ///< lastprivate clause.
+    SmallVector<OpenMPMapModifierKind, NumberOfOMPMapClauseModifiers>
+        MapTypeModifiers;
+    SmallVector<SourceLocation, NumberOfOMPMapClauseModifiers>
+        MapTypeModifiersLoc;
+    SmallVector<OpenMPMotionModifierKind, NumberOfOMPMotionModifiers>
+        MotionModifiers;
+    SmallVector<SourceLocation, NumberOfOMPMotionModifiers> MotionModifiersLoc;
+    bool IsMapTypeImplicit = false;
+    SourceLocation ExtraModifierLoc;
+    SourceLocation OmpAllMemoryLoc;
+    SourceLocation
+        StepModifierLoc; /// 'step' modifier location for linear clause
+  };
+
+  OMPClause *ActOnOpenMPVarListClause(OpenMPClauseKind Kind,
+                                      ArrayRef<Expr *> Vars,
+                                      const OMPVarListLocTy &Locs,
+                                      OpenMPVarListDataTy &Data);
+  /// Called on well-formed 'inclusive' clause.
+  OMPClause *ActOnOpenMPInclusiveClause(ArrayRef<Expr *> VarList,
+                                        SourceLocation StartLoc,
+                                        SourceLocation LParenLoc,
+                                        SourceLocation EndLoc);
+  /// Called on well-formed 'exclusive' clause.
+  OMPClause *ActOnOpenMPExclusiveClause(ArrayRef<Expr *> VarList,
+                                        SourceLocation StartLoc,
+                                        SourceLocation LParenLoc,
+                                        SourceLocation EndLoc);
+  /// Called on well-formed 'allocate' clause.
+  OMPClause *
+  ActOnOpenMPAllocateClause(Expr *Allocator, ArrayRef<Expr *> VarList,
+                            SourceLocation StartLoc, SourceLocation ColonLoc,
+                            SourceLocation LParenLoc, SourceLocation EndLoc);
+  /// Called on well-formed 'private' clause.
+  OMPClause *ActOnOpenMPPrivateClause(ArrayRef<Expr *> VarList,
+                                      SourceLocation StartLoc,
+                                      SourceLocation LParenLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed 'firstprivate' clause.
+  OMPClause *ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
+                                           SourceLocation StartLoc,
+                                           SourceLocation LParenLoc,
+                                           SourceLocation EndLoc);
+  /// Called on well-formed 'lastprivate' clause.
+  OMPClause *ActOnOpenMPLastprivateClause(
+      ArrayRef<Expr *> VarList, OpenMPLastprivateModifier LPKind,
+      SourceLocation LPKindLoc, SourceLocation ColonLoc,
+      SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation EndLoc);
+  /// Called on well-formed 'shared' clause.
+  OMPClause *ActOnOpenMPSharedClause(ArrayRef<Expr *> VarList,
+                                     SourceLocation StartLoc,
+                                     SourceLocation LParenLoc,
+                                     SourceLocation EndLoc);
+  /// Called on well-formed 'reduction' clause.
+  OMPClause *ActOnOpenMPReductionClause(
+      ArrayRef<Expr *> VarList, OpenMPReductionClauseModifier Modifier,
+      SourceLocation StartLoc, SourceLocation LParenLoc,
+      SourceLocation ModifierLoc, SourceLocation ColonLoc,
+      SourceLocation EndLoc, CXXScopeSpec &ReductionIdScopeSpec,
+      const DeclarationNameInfo &ReductionId,
+      ArrayRef<Expr *> UnresolvedReductions = std::nullopt);
+  /// Called on well-formed 'task_reduction' clause.
+  OMPClause *ActOnOpenMPTaskReductionClause(
+      ArrayRef<Expr *> VarList, SourceLocation StartLoc,
+      SourceLocation LParenLoc, SourceLocation ColonLoc, SourceLocation EndLoc,
+      CXXScopeSpec &ReductionIdScopeSpec,
+      const DeclarationNameInfo &ReductionId,
+      ArrayRef<Expr *> UnresolvedReductions = std::nullopt);
+  /// Called on well-formed 'in_reduction' clause.
+  OMPClause *ActOnOpenMPInReductionClause(
+      ArrayRef<Expr *> VarList, SourceLocation StartLoc,
+      SourceLocation LParenLoc, SourceLocation ColonLoc, SourceLocation EndLoc,
+      CXXScopeSpec &ReductionIdScopeSpec,
+      const DeclarationNameInfo &ReductionId,
+      ArrayRef<Expr *> UnresolvedReductions = std::nullopt);
+  /// Called on well-formed 'linear' clause.
+  OMPClause *ActOnOpenMPLinearClause(
+      ArrayRef<Expr *> VarList, Expr *Step, SourceLocation StartLoc,
+      SourceLocation LParenLoc, OpenMPLinearClauseKind LinKind,
+      SourceLocation LinLoc, SourceLocation ColonLoc,
+      SourceLocation StepModifierLoc, SourceLocation EndLoc);
+  /// Called on well-formed 'aligned' clause.
+  OMPClause *ActOnOpenMPAlignedClause(ArrayRef<Expr *> VarList, Expr *Alignment,
+                                      SourceLocation StartLoc,
+                                      SourceLocation LParenLoc,
+                                      SourceLocation ColonLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed 'copyin' clause.
+  OMPClause *ActOnOpenMPCopyinClause(ArrayRef<Expr *> VarList,
+                                     SourceLocation StartLoc,
+                                     SourceLocation LParenLoc,
+                                     SourceLocation EndLoc);
+  /// Called on well-formed 'copyprivate' clause.
+  OMPClause *ActOnOpenMPCopyprivateClause(ArrayRef<Expr *> VarList,
+                                          SourceLocation StartLoc,
+                                          SourceLocation LParenLoc,
+                                          SourceLocation EndLoc);
+  /// Called on well-formed 'flush' pseudo clause.
+  OMPClause *ActOnOpenMPFlushClause(ArrayRef<Expr *> VarList,
+                                    SourceLocation StartLoc,
+                                    SourceLocation LParenLoc,
+                                    SourceLocation EndLoc);
+  /// Called on well-formed 'depobj' pseudo clause.
+  OMPClause *ActOnOpenMPDepobjClause(Expr *Depobj, SourceLocation StartLoc,
+                                     SourceLocation LParenLoc,
+                                     SourceLocation EndLoc);
+  /// Called on well-formed 'depend' clause.
+  OMPClause *ActOnOpenMPDependClause(const OMPDependClause::DependDataTy &Data,
+                                     Expr *DepModifier,
+                                     ArrayRef<Expr *> VarList,
+                                     SourceLocation StartLoc,
+                                     SourceLocation LParenLoc,
+                                     SourceLocation EndLoc);
+  /// Called on well-formed 'device' clause.
+  OMPClause *ActOnOpenMPDeviceClause(OpenMPDeviceClauseModifier Modifier,
+                                     Expr *Device, SourceLocation StartLoc,
+                                     SourceLocation LParenLoc,
+                                     SourceLocation ModifierLoc,
+                                     SourceLocation EndLoc);
+  /// Called on well-formed 'map' clause.
+  OMPClause *ActOnOpenMPMapClause(
+      Expr *IteratorModifier, ArrayRef<OpenMPMapModifierKind> MapTypeModifiers,
+      ArrayRef<SourceLocation> MapTypeModifiersLoc,
+      CXXScopeSpec &MapperIdScopeSpec, DeclarationNameInfo &MapperId,
+      OpenMPMapClauseKind MapType, bool IsMapTypeImplicit,
+      SourceLocation MapLoc, SourceLocation ColonLoc, ArrayRef<Expr *> VarList,
+      const OMPVarListLocTy &Locs, bool NoDiagnose = false,
+      ArrayRef<Expr *> UnresolvedMappers = std::nullopt);
+  /// Called on well-formed 'num_teams' clause.
+  OMPClause *ActOnOpenMPNumTeamsClause(Expr *NumTeams, SourceLocation StartLoc,
+                                       SourceLocation LParenLoc,
+                                       SourceLocation EndLoc);
+  /// Called on well-formed 'thread_limit' clause.
+  OMPClause *ActOnOpenMPThreadLimitClause(Expr *ThreadLimit,
+                                          SourceLocation StartLoc,
+                                          SourceLocation LParenLoc,
+                                          SourceLocation EndLoc);
+  /// Called on well-formed 'priority' clause.
+  OMPClause *ActOnOpenMPPriorityClause(Expr *Priority, SourceLocation StartLoc,
+                                       SourceLocation LParenLoc,
+                                       SourceLocation EndLoc);
+  /// Called on well-formed 'dist_schedule' clause.
+  OMPClause *ActOnOpenMPDistScheduleClause(
+      OpenMPDistScheduleClauseKind Kind, Expr *ChunkSize,
+      SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation KindLoc,
+      SourceLocation CommaLoc, SourceLocation EndLoc);
+  /// Called on well-formed 'defaultmap' clause.
+  OMPClause *ActOnOpenMPDefaultmapClause(
+      OpenMPDefaultmapClauseModifier M, OpenMPDefaultmapClauseKind Kind,
+      SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation MLoc,
+      SourceLocation KindLoc, SourceLocation EndLoc);
+  /// Called on well-formed 'to' clause.
+  OMPClause *
+  ActOnOpenMPToClause(ArrayRef<OpenMPMotionModifierKind> MotionModifiers,
+                      ArrayRef<SourceLocation> MotionModifiersLoc,
+                      CXXScopeSpec &MapperIdScopeSpec,
+                      DeclarationNameInfo &MapperId, SourceLocation ColonLoc,
+                      ArrayRef<Expr *> VarList, const OMPVarListLocTy &Locs,
+                      ArrayRef<Expr *> UnresolvedMappers = std::nullopt);
+  /// Called on well-formed 'from' clause.
+  OMPClause *
+  ActOnOpenMPFromClause(ArrayRef<OpenMPMotionModifierKind> MotionModifiers,
+                        ArrayRef<SourceLocation> MotionModifiersLoc,
+                        CXXScopeSpec &MapperIdScopeSpec,
+                        DeclarationNameInfo &MapperId, SourceLocation ColonLoc,
+                        ArrayRef<Expr *> VarList, const OMPVarListLocTy &Locs,
+                        ArrayRef<Expr *> UnresolvedMappers = std::nullopt);
+  /// Called on well-formed 'use_device_ptr' clause.
+  OMPClause *ActOnOpenMPUseDevicePtrClause(ArrayRef<Expr *> VarList,
+                                           const OMPVarListLocTy &Locs);
+  /// Called on well-formed 'use_device_addr' clause.
+  OMPClause *ActOnOpenMPUseDeviceAddrClause(ArrayRef<Expr *> VarList,
+                                            const OMPVarListLocTy &Locs);
+  /// Called on well-formed 'is_device_ptr' clause.
+  OMPClause *ActOnOpenMPIsDevicePtrClause(ArrayRef<Expr *> VarList,
+                                          const OMPVarListLocTy &Locs);
+  /// Called on well-formed 'has_device_addr' clause.
+  OMPClause *ActOnOpenMPHasDeviceAddrClause(ArrayRef<Expr *> VarList,
+                                            const OMPVarListLocTy &Locs);
+  /// Called on well-formed 'nontemporal' clause.
+  OMPClause *ActOnOpenMPNontemporalClause(ArrayRef<Expr *> VarList,
+                                          SourceLocation StartLoc,
+                                          SourceLocation LParenLoc,
+                                          SourceLocation EndLoc);
+
+  /// Data for list of allocators.
+  struct UsesAllocatorsData {
+    /// Allocator.
+    Expr *Allocator = nullptr;
+    /// Allocator traits.
+    Expr *AllocatorTraits = nullptr;
+    /// Locations of '(' and ')' symbols.
+    SourceLocation LParenLoc, RParenLoc;
+  };
+  /// Called on well-formed 'uses_allocators' clause.
+  OMPClause *ActOnOpenMPUsesAllocatorClause(SourceLocation StartLoc,
+                                            SourceLocation LParenLoc,
+                                            SourceLocation EndLoc,
+                                            ArrayRef<UsesAllocatorsData> Data);
+  /// Called on well-formed 'affinity' clause.
+  OMPClause *ActOnOpenMPAffinityClause(SourceLocation StartLoc,
+                                       SourceLocation LParenLoc,
+                                       SourceLocation ColonLoc,
+                                       SourceLocation EndLoc, Expr *Modifier,
+                                       ArrayRef<Expr *> Locators);
+  /// Called on a well-formed 'bind' clause.
+  OMPClause *ActOnOpenMPBindClause(OpenMPBindClauseKind Kind,
+                                   SourceLocation KindLoc,
+                                   SourceLocation StartLoc,
+                                   SourceLocation LParenLoc,
+                                   SourceLocation EndLoc);
+
+  /// Called on a well-formed 'ompx_dyn_cgroup_mem' clause.
+  OMPClause *ActOnOpenMPXDynCGroupMemClause(Expr *Size, SourceLocation StartLoc,
+                                            SourceLocation LParenLoc,
+                                            SourceLocation EndLoc);
+
+  /// Called on well-formed 'doacross' clause.
+  OMPClause *
+  ActOnOpenMPDoacrossClause(OpenMPDoacrossClauseModifier DepType,
+                            SourceLocation DepLoc, SourceLocation ColonLoc,
+                            ArrayRef<Expr *> VarList, SourceLocation StartLoc,
+                            SourceLocation LParenLoc, SourceLocation EndLoc);
+
+  /// Called on a well-formed 'ompx_attribute' clause.
+  OMPClause *ActOnOpenMPXAttributeClause(ArrayRef<const Attr *> Attrs,
+                                         SourceLocation StartLoc,
+                                         SourceLocation LParenLoc,
+                                         SourceLocation EndLoc);
+
+  /// Called on a well-formed 'ompx_bare' clause.
+  OMPClause *ActOnOpenMPXBareClause(SourceLocation StartLoc,
+                                    SourceLocation EndLoc);
+
+  ExprResult ActOnOMPArraySectionExpr(Expr *Base, SourceLocation LBLoc,
+                                      Expr *LowerBound,
+                                      SourceLocation ColonLocFirst,
+                                      SourceLocation ColonLocSecond,
+                                      Expr *Length, Expr *Stride,
+                                      SourceLocation RBLoc);
+  ExprResult ActOnOMPArrayShapingExpr(Expr *Base, SourceLocation LParenLoc,
+                                      SourceLocation RParenLoc,
+                                      ArrayRef<Expr *> Dims,
+                                      ArrayRef<SourceRange> Brackets);
+
+  /// Data structure for iterator expression.
+  struct OMPIteratorData {
+    IdentifierInfo *DeclIdent = nullptr;
+    SourceLocation DeclIdentLoc;
+    ParsedType Type;
+    OMPIteratorExpr::IteratorRange Range;
+    SourceLocation AssignLoc;
+    SourceLocation ColonLoc;
+    SourceLocation SecColonLoc;
+  };
+
+  ExprResult ActOnOMPIteratorExpr(Scope *S, SourceLocation IteratorKwLoc,
+                                  SourceLocation LLoc, SourceLocation RLoc,
+                                  ArrayRef<OMPIteratorData> Data);
+
+private:
+  void *VarDataSharingAttributesStack;
+
+  /// Number of nested '#pragma omp declare target' directives.
+  SmallVector<DeclareTargetContextInfo, 4> DeclareTargetNesting;
+
+  /// Initialization of data-sharing attributes stack.
+  void InitDataSharingAttributesStack();
+  void DestroyDataSharingAttributesStack();
+
+  /// Returns OpenMP nesting level for current directive.
+  unsigned getOpenMPNestingLevel() const;
+
+  /// Adjusts the function scopes index for the target-based regions.
+  void adjustOpenMPTargetScopeIndex(unsigned &FunctionScopesIndex,
+                                    unsigned Level) const;
+
+  /// Returns the number of scopes associated with the construct on the given
+  /// OpenMP level.
+  int getNumberOfConstructScopes(unsigned Level) const;
+
+  /// Push new OpenMP function region for non-capturing function.
+  void pushOpenMPFunctionRegion();
+
+  /// Pop OpenMP function region for non-capturing function.
+  void popOpenMPFunctionRegion(const sema::FunctionScopeInfo *OldFSI);
+
+  /// Analyzes and checks a loop nest for use by a loop transformation.
+  ///
+  /// \param Kind          The loop transformation directive kind.
+  /// \param NumLoops      How many nested loops the directive is expecting.
+  /// \param AStmt         Associated statement of the transformation directive.
+  /// \param LoopHelpers   [out] The loop analysis result.
+  /// \param Body          [out] The body code nested in \p NumLoops loop.
+  /// \param OriginalInits [out] Collection of statements and declarations that
+  ///                      must have been executed/declared before entering the
+  ///                      loop.
+  ///
+  /// \return Whether there was any error.
+  bool checkTransformableLoopNest(
+      OpenMPDirectiveKind Kind, Stmt *AStmt, int NumLoops,
+      SmallVectorImpl<OMPLoopBasedDirective::HelperExprs> &LoopHelpers,
+      Stmt *&Body,
+      SmallVectorImpl<SmallVector<llvm::PointerUnion<Stmt *, Decl *>, 0>>
+          &OriginalInits);
+
+  /// Helper to keep information about the current `omp begin/end declare
+  /// variant` nesting.
+  struct OMPDeclareVariantScope {
+    /// The associated OpenMP context selector.
+    OMPTraitInfo *TI;
+
+    /// The associated OpenMP context selector mangling.
+    std::string NameSuffix;
+
+    OMPDeclareVariantScope(OMPTraitInfo &TI);
+  };
+
+  /// Return the OMPTraitInfo for the surrounding scope, if any.
+  OMPTraitInfo *getOMPTraitInfoForSurroundingScope() {
+    return OMPDeclareVariantScopes.empty() ? nullptr
+                                           : OMPDeclareVariantScopes.back().TI;
+  }
+
+  /// The current `omp begin/end declare variant` scopes.
+  SmallVector<OMPDeclareVariantScope, 4> OMPDeclareVariantScopes;
+
+  /// The current `omp begin/end assumes` scopes.
+  SmallVector<OMPAssumeAttr *, 4> OMPAssumeScoped;
+
+  /// All `omp assumes` we encountered so far.
+  SmallVector<OMPAssumeAttr *, 4> OMPAssumeGlobal;
+
+  /// OMPD_loop is mapped to OMPD_for, OMPD_distribute or OMPD_simd depending
+  /// on the parameter of the bind clause. In the methods for the
+  /// mapped directives, check the parameters of the lastprivate clause.
+  bool checkLastPrivateForMappedDirectives(ArrayRef<OMPClause *> Clauses);
+  /// Depending on the bind clause of OMPD_loop map the directive to new
+  /// directives.
+  ///    1) loop bind(parallel) --> OMPD_for
+  ///    2) loop bind(teams) --> OMPD_distribute
+  ///    3) loop bind(thread) --> OMPD_simd
+  /// This is being handled in Sema instead of Codegen because of the need for
+  /// rigorous semantic checking in the new mapped directives.
+  bool mapLoopConstruct(llvm::SmallVector<OMPClause *> &ClausesWithoutBind,
+                        ArrayRef<OMPClause *> Clauses,
+                        OpenMPBindClauseKind &BindKind,
+                        OpenMPDirectiveKind &Kind,
+                        OpenMPDirectiveKind &PrevMappedDirective,
+                        SourceLocation StartLoc, SourceLocation EndLoc,
+                        const DeclarationNameInfo &DirName,
+                        OpenMPDirectiveKind CancelRegion);
+};
+
+} // namespace clang
+
+#endif // LLVM_CLANG_SEMA_SEMAOPENMP_H
diff --git a/clang/include/clang/Serialization/ASTReader.h b/clang/include/clang/Serialization/ASTReader.h
index e3fde887f99c..43ee06c524b3 100644
--- a/clang/include/clang/Serialization/ASTReader.h
+++ b/clang/include/clang/Serialization/ASTReader.h
@@ -2457,6 +2457,12 @@ private:
   uint32_t Value;
   uint32_t CurrentBitsIndex = ~0;
 };
+
+inline bool shouldSkipCheckingODR(const Decl *D) {
+  return D->getASTContext().getLangOpts().SkipODRCheckInGMF &&
+         D->isFromExplicitGlobalModule();
+}
+
 } // namespace clang
 
 #endif // LLVM_CLANG_SERIALIZATION_ASTREADER_H
diff --git a/clang/lib/APINotes/APINotesReader.cpp b/clang/lib/APINotes/APINotesReader.cpp
index fbbe9c32ce12..dfc3beb6fa13 100644
--- a/clang/lib/APINotes/APINotesReader.cpp
+++ b/clang/lib/APINotes/APINotesReader.cpp
@@ -30,23 +30,20 @@ namespace {
 llvm::VersionTuple ReadVersionTuple(const uint8_t *&Data) {
   uint8_t NumVersions = (*Data++) & 0x03;
 
-  unsigned Major =
-      endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+  unsigned Major = endian::readNext<uint32_t, llvm::endianness::little>(Data);
   if (NumVersions == 0)
     return llvm::VersionTuple(Major);
 
-  unsigned Minor =
-      endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+  unsigned Minor = endian::readNext<uint32_t, llvm::endianness::little>(Data);
   if (NumVersions == 1)
     return llvm::VersionTuple(Major, Minor);
 
   unsigned Subminor =
-      endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+      endian::readNext<uint32_t, llvm::endianness::little>(Data);
   if (NumVersions == 2)
     return llvm::VersionTuple(Major, Minor, Subminor);
 
-  unsigned Build =
-      endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+  unsigned Build = endian::readNext<uint32_t, llvm::endianness::little>(Data);
   return llvm::VersionTuple(Major, Minor, Subminor, Build);
 }
 
@@ -71,16 +68,16 @@ public:
 
   static std::pair<unsigned, unsigned> ReadKeyDataLength(const uint8_t *&Data) {
     unsigned KeyLength =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint16_t, llvm::endianness::little>(Data);
     unsigned DataLength =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint16_t, llvm::endianness::little>(Data);
     return {KeyLength, DataLength};
   }
 
   static data_type ReadData(internal_key_type Key, const uint8_t *Data,
                             unsigned Length) {
     unsigned NumElements =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint16_t, llvm::endianness::little>(Data);
     data_type Result;
     Result.reserve(NumElements);
     for (unsigned i = 0; i != NumElements; ++i) {
@@ -105,14 +102,14 @@ void ReadCommonEntityInfo(const uint8_t *&Data, CommonEntityInfo &Info) {
     Info.setSwiftPrivate(static_cast<bool>((UnavailableBits >> 3) & 0x01));
 
   unsigned MsgLength =
-      endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+      endian::readNext<uint16_t, llvm::endianness::little>(Data);
   Info.UnavailableMsg =
       std::string(reinterpret_cast<const char *>(Data),
                   reinterpret_cast<const char *>(Data) + MsgLength);
   Data += MsgLength;
 
   unsigned SwiftNameLength =
-      endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+      endian::readNext<uint16_t, llvm::endianness::little>(Data);
   Info.SwiftName =
       std::string(reinterpret_cast<const char *>(Data),
                   reinterpret_cast<const char *>(Data) + SwiftNameLength);
@@ -124,7 +121,7 @@ void ReadCommonTypeInfo(const uint8_t *&Data, CommonTypeInfo &Info) {
   ReadCommonEntityInfo(Data, Info);
 
   unsigned SwiftBridgeLength =
-      endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+      endian::readNext<uint16_t, llvm::endianness::little>(Data);
   if (SwiftBridgeLength > 0) {
     Info.setSwiftBridge(std::string(reinterpret_cast<const char *>(Data),
                                     SwiftBridgeLength - 1));
@@ -132,7 +129,7 @@ void ReadCommonTypeInfo(const uint8_t *&Data, CommonTypeInfo &Info) {
   }
 
   unsigned ErrorDomainLength =
-      endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+      endian::readNext<uint16_t, llvm::endianness::little>(Data);
   if (ErrorDomainLength > 0) {
     Info.setNSErrorDomain(std::optional<std::string>(std::string(
         reinterpret_cast<const char *>(Data), ErrorDomainLength - 1)));
@@ -163,9 +160,9 @@ public:
 
   static std::pair<unsigned, unsigned> ReadKeyDataLength(const uint8_t *&Data) {
     unsigned KeyLength =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint16_t, llvm::endianness::little>(Data);
     unsigned DataLength =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint16_t, llvm::endianness::little>(Data);
     return {KeyLength, DataLength};
   }
 
@@ -175,8 +172,7 @@ public:
 
   static data_type ReadData(internal_key_type key, const uint8_t *Data,
                             unsigned Length) {
-    return endian::readNext<uint32_t, llvm::endianness::little, unaligned>(
-        Data);
+    return endian::readNext<uint32_t, llvm::endianness::little>(Data);
   }
 };
 
@@ -203,26 +199,24 @@ public:
 
   static std::pair<unsigned, unsigned> ReadKeyDataLength(const uint8_t *&Data) {
     unsigned KeyLength =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint16_t, llvm::endianness::little>(Data);
     unsigned DataLength =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint16_t, llvm::endianness::little>(Data);
     return {KeyLength, DataLength};
   }
 
   static internal_key_type ReadKey(const uint8_t *Data, unsigned Length) {
     auto ParentCtxID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint32_t, llvm::endianness::little>(Data);
     auto ContextKind =
-        endian::readNext<uint8_t, llvm::endianness::little, unaligned>(Data);
-    auto NameID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint8_t, llvm::endianness::little>(Data);
+    auto NameID = endian::readNext<uint32_t, llvm::endianness::little>(Data);
     return {ParentCtxID, ContextKind, NameID};
   }
 
   static data_type ReadData(internal_key_type Key, const uint8_t *Data,
                             unsigned Length) {
-    return endian::readNext<uint32_t, llvm::endianness::little, unaligned>(
-        Data);
+    return endian::readNext<uint32_t, llvm::endianness::little>(Data);
   }
 };
 
@@ -232,8 +226,7 @@ class ObjCContextInfoTableInfo
                                 ObjCContextInfo> {
 public:
   static internal_key_type ReadKey(const uint8_t *Data, unsigned Length) {
-    return endian::readNext<uint32_t, llvm::endianness::little, unaligned>(
-        Data);
+    return endian::readNext<uint32_t, llvm::endianness::little>(Data);
   }
 
   hash_value_type ComputeHash(internal_key_type Key) {
@@ -273,8 +266,7 @@ void ReadVariableInfo(const uint8_t *&Data, VariableInfo &Info) {
   }
   ++Data;
 
-  auto TypeLen =
-      endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+  auto TypeLen = endian::readNext<uint16_t, llvm::endianness::little>(Data);
   Info.setType(std::string(Data, Data + TypeLen));
   Data += TypeLen;
 }
@@ -286,12 +278,9 @@ class ObjCPropertyTableInfo
                                 ObjCPropertyInfo> {
 public:
   static internal_key_type ReadKey(const uint8_t *Data, unsigned Length) {
-    auto ClassID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
-    auto NameID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
-    char IsInstance =
-        endian::readNext<uint8_t, llvm::endianness::little, unaligned>(Data);
+    auto ClassID = endian::readNext<uint32_t, llvm::endianness::little>(Data);
+    auto NameID = endian::readNext<uint32_t, llvm::endianness::little>(Data);
+    char IsInstance = endian::readNext<uint8_t, llvm::endianness::little>(Data);
     return {ClassID, NameID, IsInstance};
   }
 
@@ -314,8 +303,7 @@ public:
 void ReadParamInfo(const uint8_t *&Data, ParamInfo &Info) {
   ReadVariableInfo(Data, Info);
 
-  uint8_t Payload =
-      endian::readNext<uint8_t, llvm::endianness::little, unaligned>(Data);
+  uint8_t Payload = endian::readNext<uint8_t, llvm::endianness::little>(Data);
   if (auto RawConvention = Payload & 0x7) {
     auto Convention = static_cast<RetainCountConventionKind>(RawConvention - 1);
     Info.setRetainCountConvention(Convention);
@@ -331,8 +319,7 @@ void ReadParamInfo(const uint8_t *&Data, ParamInfo &Info) {
 void ReadFunctionInfo(const uint8_t *&Data, FunctionInfo &Info) {
   ReadCommonEntityInfo(Data, Info);
 
-  uint8_t Payload =
-      endian::readNext<uint8_t, llvm::endianness::little, unaligned>(Data);
+  uint8_t Payload = endian::readNext<uint8_t, llvm::endianness::little>(Data);
   if (auto RawConvention = Payload & 0x7) {
     auto Convention = static_cast<RetainCountConventionKind>(RawConvention - 1);
     Info.setRetainCountConvention(Convention);
@@ -343,12 +330,12 @@ void ReadFunctionInfo(const uint8_t *&Data, FunctionInfo &Info) {
   assert(Payload == 0 && "Bad API notes");
 
   Info.NumAdjustedNullable =
-      endian::readNext<uint8_t, llvm::endianness::little, unaligned>(Data);
+      endian::readNext<uint8_t, llvm::endianness::little>(Data);
   Info.NullabilityPayload =
-      endian::readNext<uint64_t, llvm::endianness::little, unaligned>(Data);
+      endian::readNext<uint64_t, llvm::endianness::little>(Data);
 
   unsigned NumParams =
-      endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+      endian::readNext<uint16_t, llvm::endianness::little>(Data);
   while (NumParams > 0) {
     ParamInfo pi;
     ReadParamInfo(Data, pi);
@@ -357,7 +344,7 @@ void ReadFunctionInfo(const uint8_t *&Data, FunctionInfo &Info) {
   }
 
   unsigned ResultTypeLen =
-      endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+      endian::readNext<uint16_t, llvm::endianness::little>(Data);
   Info.ResultType = std::string(Data, Data + ResultTypeLen);
   Data += ResultTypeLen;
 }
@@ -369,12 +356,10 @@ class ObjCMethodTableInfo
                                 ObjCMethodInfo> {
 public:
   static internal_key_type ReadKey(const uint8_t *Data, unsigned Length) {
-    auto ClassID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+    auto ClassID = endian::readNext<uint32_t, llvm::endianness::little>(Data);
     auto SelectorID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
-    auto IsInstance =
-        endian::readNext<uint8_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint32_t, llvm::endianness::little>(Data);
+    auto IsInstance = endian::readNext<uint8_t, llvm::endianness::little>(Data);
     return {ClassID, SelectorID, IsInstance};
   }
 
@@ -419,29 +404,26 @@ public:
 
   static std::pair<unsigned, unsigned> ReadKeyDataLength(const uint8_t *&Data) {
     unsigned KeyLength =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint16_t, llvm::endianness::little>(Data);
     unsigned DataLength =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint16_t, llvm::endianness::little>(Data);
     return {KeyLength, DataLength};
   }
 
   static internal_key_type ReadKey(const uint8_t *Data, unsigned Length) {
     internal_key_type Key;
-    Key.NumArgs =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+    Key.NumArgs = endian::readNext<uint16_t, llvm::endianness::little>(Data);
     unsigned NumIdents = (Length - sizeof(uint16_t)) / sizeof(uint32_t);
     for (unsigned i = 0; i != NumIdents; ++i) {
       Key.Identifiers.push_back(
-          endian::readNext<uint32_t, llvm::endianness::little, unaligned>(
-              Data));
+          endian::readNext<uint32_t, llvm::endianness::little>(Data));
     }
     return Key;
   }
 
   static data_type ReadData(internal_key_type Key, const uint8_t *Data,
                             unsigned Length) {
-    return endian::readNext<uint32_t, llvm::endianness::little, unaligned>(
-        Data);
+    return endian::readNext<uint32_t, llvm::endianness::little>(Data);
   }
 };
 
@@ -451,12 +433,10 @@ class GlobalVariableTableInfo
                                 GlobalVariableInfo> {
 public:
   static internal_key_type ReadKey(const uint8_t *Data, unsigned Length) {
-    auto CtxID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+    auto CtxID = endian::readNext<uint32_t, llvm::endianness::little>(Data);
     auto ContextKind =
-        endian::readNext<uint8_t, llvm::endianness::little, unaligned>(Data);
-    auto NameID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint8_t, llvm::endianness::little>(Data);
+    auto NameID = endian::readNext<uint32_t, llvm::endianness::little>(Data);
     return {CtxID, ContextKind, NameID};
   }
 
@@ -478,12 +458,10 @@ class GlobalFunctionTableInfo
                                 GlobalFunctionInfo> {
 public:
   static internal_key_type ReadKey(const uint8_t *Data, unsigned Length) {
-    auto CtxID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+    auto CtxID = endian::readNext<uint32_t, llvm::endianness::little>(Data);
     auto ContextKind =
-        endian::readNext<uint8_t, llvm::endianness::little, unaligned>(Data);
-    auto NameID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint8_t, llvm::endianness::little>(Data);
+    auto NameID = endian::readNext<uint32_t, llvm::endianness::little>(Data);
     return {CtxID, ContextKind, NameID};
   }
 
@@ -505,8 +483,7 @@ class EnumConstantTableInfo
                                 EnumConstantInfo> {
 public:
   static internal_key_type ReadKey(const uint8_t *Data, unsigned Length) {
-    auto NameID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+    auto NameID = endian::readNext<uint32_t, llvm::endianness::little>(Data);
     return NameID;
   }
 
@@ -527,13 +504,11 @@ class TagTableInfo
     : public VersionedTableInfo<TagTableInfo, ContextTableKey, TagInfo> {
 public:
   static internal_key_type ReadKey(const uint8_t *Data, unsigned Length) {
-    auto CtxID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+    auto CtxID = endian::readNext<uint32_t, llvm::endianness::little>(Data);
     auto ContextKind =
-        endian::readNext<uint8_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint8_t, llvm::endianness::little>(Data);
     auto NameID =
-        endian::readNext<IdentifierID, llvm::endianness::little, unaligned>(
-            Data);
+        endian::readNext<IdentifierID, llvm::endianness::little>(Data);
     return {CtxID, ContextKind, NameID};
   }
 
@@ -553,21 +528,21 @@ public:
           static_cast<EnumExtensibilityKind>((Payload & 0x3) - 1);
 
     unsigned ImportAsLength =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint16_t, llvm::endianness::little>(Data);
     if (ImportAsLength > 0) {
       Info.SwiftImportAs =
           std::string(reinterpret_cast<const char *>(Data), ImportAsLength - 1);
       Data += ImportAsLength - 1;
     }
     unsigned RetainOpLength =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint16_t, llvm::endianness::little>(Data);
     if (RetainOpLength > 0) {
       Info.SwiftRetainOp =
           std::string(reinterpret_cast<const char *>(Data), RetainOpLength - 1);
       Data += RetainOpLength - 1;
     }
     unsigned ReleaseOpLength =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint16_t, llvm::endianness::little>(Data);
     if (ReleaseOpLength > 0) {
       Info.SwiftReleaseOp = std::string(reinterpret_cast<const char *>(Data),
                                         ReleaseOpLength - 1);
@@ -585,13 +560,11 @@ class TypedefTableInfo
                                 TypedefInfo> {
 public:
   static internal_key_type ReadKey(const uint8_t *Data, unsigned Length) {
-    auto CtxID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+    auto CtxID = endian::readNext<uint32_t, llvm::endianness::little>(Data);
     auto ContextKind =
-        endian::readNext<uint8_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint8_t, llvm::endianness::little>(Data);
     auto nameID =
-        endian::readNext<IdentifierID, llvm::endianness::little, unaligned>(
-            Data);
+        endian::readNext<IdentifierID, llvm::endianness::little>(Data);
     return {CtxID, ContextKind, nameID};
   }
 
diff --git a/clang/lib/AST/Decl.cpp b/clang/lib/AST/Decl.cpp
index 2b2d5a2663a1..33b6f8611f21 100644
--- a/clang/lib/AST/Decl.cpp
+++ b/clang/lib/AST/Decl.cpp
@@ -4534,7 +4534,7 @@ unsigned FunctionDecl::getODRHash() {
   }
 
   class ODRHash Hash;
-  Hash.AddFunctionDecl(this, /*SkipBody=*/shouldSkipCheckingODR());
+  Hash.AddFunctionDecl(this);
   setHasODRHash(true);
   ODRHash = Hash.CalculateHash();
   return ODRHash;
diff --git a/clang/lib/AST/DeclBase.cpp b/clang/lib/AST/DeclBase.cpp
index 66a727d9dd0c..434926324c96 100644
--- a/clang/lib/AST/DeclBase.cpp
+++ b/clang/lib/AST/DeclBase.cpp
@@ -1106,11 +1106,6 @@ bool Decl::isFromExplicitGlobalModule() const {
   return getOwningModule() && getOwningModule()->isExplicitGlobalModule();
 }
 
-bool Decl::shouldSkipCheckingODR() const {
-  return getASTContext().getLangOpts().SkipODRCheckInGMF &&
-         isFromExplicitGlobalModule();
-}
-
 static Decl::Kind getKind(const Decl *D) { return D->getKind(); }
 static Decl::Kind getKind(const DeclContext *DC) { return DC->getDeclKind(); }
 
diff --git a/clang/lib/AST/Interp/ByteCodeExprGen.cpp b/clang/lib/AST/Interp/ByteCodeExprGen.cpp
index 01ec31e4077f..00c4a9f16130 100644
--- a/clang/lib/AST/Interp/ByteCodeExprGen.cpp
+++ b/clang/lib/AST/Interp/ByteCodeExprGen.cpp
@@ -262,7 +262,7 @@ bool ByteCodeExprGen<Emitter>::VisitCastExpr(const CastExpr *CE) {
       return this->discard(SubExpr);
 
     std::optional<PrimType> FromT = classify(SubExpr->getType());
-    std::optional<PrimType> ToT = classifyPrim(CE->getType());
+    std::optional<PrimType> ToT = classify(CE->getType());
     if (!FromT || !ToT)
       return false;
 
@@ -1251,6 +1251,15 @@ bool ByteCodeExprGen<Emitter>::VisitUnaryExprOrTypeTraitExpr(
     return this->emitConst(Size.getQuantity(), E);
   }
 
+  if (Kind == UETT_VectorElements) {
+    if (const auto *VT = E->getTypeOfArgument()->getAs<VectorType>())
+      return this->emitConst(VT->getNumElements(), E);
+
+    // FIXME: Apparently we need to catch the fact that a sizeless vector type
+    // has been passed and diagnose that (at run time).
+    assert(E->getTypeOfArgument()->isSizelessVectorType());
+  }
+
   return false;
 }
 
@@ -1258,10 +1267,30 @@ template <class Emitter>
 bool ByteCodeExprGen<Emitter>::VisitMemberExpr(const MemberExpr *E) {
   // 'Base.Member'
   const Expr *Base = E->getBase();
+  const ValueDecl *Member = E->getMemberDecl();
 
   if (DiscardResult)
     return this->discard(Base);
 
+  // MemberExprs are almost always lvalues, in which case we don't need to
+  // do the load. But sometimes they aren't.
+  const auto maybeLoadValue = [&]() -> bool {
+    if (E->isGLValue())
+      return true;
+    if (std::optional<PrimType> T = classify(E))
+      return this->emitLoadPop(*T, E);
+    return false;
+  };
+
+  if (const auto *VD = dyn_cast<VarDecl>(Member)) {
+    // I am almost confident in saying that a var decl must be static
+    // and therefore registered as a global variable. But this will probably
+    // turn out to be wrong some time in the future, as always.
+    if (auto GlobalIndex = P.getGlobal(VD))
+      return this->emitGetPtrGlobal(*GlobalIndex, E) && maybeLoadValue();
+    return false;
+  }
+
   if (Initializing) {
     if (!this->delegate(Base))
       return false;
@@ -1271,16 +1300,14 @@ bool ByteCodeExprGen<Emitter>::VisitMemberExpr(const MemberExpr *E) {
   }
 
   // Base above gives us a pointer on the stack.
-  // TODO: Implement non-FieldDecl members.
-  const ValueDecl *Member = E->getMemberDecl();
   if (const auto *FD = dyn_cast<FieldDecl>(Member)) {
     const RecordDecl *RD = FD->getParent();
     const Record *R = getRecord(RD);
     const Record::Field *F = R->getField(FD);
     // Leave a pointer to the field on the stack.
     if (F->Decl->getType()->isReferenceType())
-      return this->emitGetFieldPop(PT_Ptr, F->Offset, E);
-    return this->emitGetPtrField(F->Offset, E);
+      return this->emitGetFieldPop(PT_Ptr, F->Offset, E) && maybeLoadValue();
+    return this->emitGetPtrField(F->Offset, E) && maybeLoadValue();
   }
 
   return false;
@@ -1615,7 +1642,7 @@ bool ByteCodeExprGen<Emitter>::VisitCompoundAssignOperator(
     return false;
   if (!this->emitLoad(*LT, E))
     return false;
-  if (*LT != *LHSComputationT) {
+  if (LT != LHSComputationT) {
     if (!this->emitCast(*LT, *LHSComputationT, E))
       return false;
   }
@@ -1671,7 +1698,7 @@ bool ByteCodeExprGen<Emitter>::VisitCompoundAssignOperator(
   }
 
   // And now cast from LHSComputationT to ResultT.
-  if (*ResultT != *LHSComputationT) {
+  if (ResultT != LHSComputationT) {
     if (!this->emitCast(*LHSComputationT, *ResultT, E))
       return false;
   }
diff --git a/clang/lib/AST/Interp/Disasm.cpp b/clang/lib/AST/Interp/Disasm.cpp
index 022b394e58e6..d127f33223e8 100644
--- a/clang/lib/AST/Interp/Disasm.cpp
+++ b/clang/lib/AST/Interp/Disasm.cpp
@@ -140,7 +140,7 @@ LLVM_DUMP_METHOD void Program::dump(llvm::raw_ostream &OS) const {
     const Descriptor *Desc = G->block()->getDescriptor();
     Pointer GP = getPtrGlobal(GI);
 
-    OS << GI << ": " << (void *)G->block() << " ";
+    OS << GI << ": " << (const void *)G->block() << " ";
     {
       ColorScope SC(OS, true,
                     GP.isInitialized()
@@ -264,3 +264,19 @@ LLVM_DUMP_METHOD void Record::dump(llvm::raw_ostream &OS, unsigned Indentation,
     ++I;
   }
 }
+
+LLVM_DUMP_METHOD void Block::dump(llvm::raw_ostream &OS) const {
+  {
+    ColorScope SC(OS, true, {llvm::raw_ostream::BRIGHT_BLUE, true});
+    OS << "Block " << (const void *)this << "\n";
+  }
+  unsigned NPointers = 0;
+  for (const Pointer *P = Pointers; P; P = P->Next) {
+    ++NPointers;
+  }
+  OS << "  Pointers: " << NPointers << "\n";
+  OS << "  Dead: " << IsDead << "\n";
+  OS << "  Static: " << IsStatic << "\n";
+  OS << "  Extern: " << IsExtern << "\n";
+  OS << "  Initialized: " << IsInitialized << "\n";
+}
diff --git a/clang/lib/AST/Interp/FunctionPointer.h b/clang/lib/AST/Interp/FunctionPointer.h
index c2ea295b82bd..fc3d7a4214a7 100644
--- a/clang/lib/AST/Interp/FunctionPointer.h
+++ b/clang/lib/AST/Interp/FunctionPointer.h
@@ -32,6 +32,7 @@ public:
 
   const Function *getFunction() const { return Func; }
   bool isZero() const { return !Func; }
+  bool isValid() const { return Valid; }
   bool isWeak() const {
     if (!Func || !Valid)
       return false;
diff --git a/clang/lib/AST/Interp/Interp.h b/clang/lib/AST/Interp/Interp.h
index 4182254357eb..dd0bacd73acb 100644
--- a/clang/lib/AST/Interp/Interp.h
+++ b/clang/lib/AST/Interp/Interp.h
@@ -2236,6 +2236,10 @@ inline bool CallPtr(InterpState &S, CodePtr OpPC, uint32_t ArgSize,
         << const_cast<Expr *>(E) << E->getSourceRange();
     return false;
   }
+
+  if (!FuncPtr.isValid())
+    return false;
+
   assert(F);
 
   // Check argument nullability state.
diff --git a/clang/lib/AST/Interp/InterpBlock.h b/clang/lib/AST/Interp/InterpBlock.h
index 9db82567d2d5..6d5856fbd4ea 100644
--- a/clang/lib/AST/Interp/InterpBlock.h
+++ b/clang/lib/AST/Interp/InterpBlock.h
@@ -118,6 +118,9 @@ public:
     IsInitialized = false;
   }
 
+  void dump() const { dump(llvm::errs()); }
+  void dump(llvm::raw_ostream &OS) const;
+
 protected:
   friend class Pointer;
   friend class DeadBlock;
diff --git a/clang/lib/AST/Interp/InterpBuiltin.cpp b/clang/lib/AST/Interp/InterpBuiltin.cpp
index 984ba4f7f268..f562f9e1cb19 100644
--- a/clang/lib/AST/Interp/InterpBuiltin.cpp
+++ b/clang/lib/AST/Interp/InterpBuiltin.cpp
@@ -977,6 +977,117 @@ static bool interp__builtin_complex(InterpState &S, CodePtr OpPC,
   return true;
 }
 
+/// __builtin_is_aligned()
+/// __builtin_align_up()
+/// __builtin_align_down()
+/// The first parameter is either an integer or a pointer.
+/// The second parameter is the requested alignment as an integer.
+static bool interp__builtin_is_aligned_up_down(InterpState &S, CodePtr OpPC,
+                                               const InterpFrame *Frame,
+                                               const Function *Func,
+                                               const CallExpr *Call) {
+  unsigned BuiltinOp = Func->getBuiltinID();
+  unsigned CallSize = callArgSize(S, Call);
+
+  PrimType AlignmentT = *S.Ctx.classify(Call->getArg(1));
+  const APSInt &Alignment = peekToAPSInt(S.Stk, AlignmentT);
+
+  if (Alignment < 0 || !Alignment.isPowerOf2()) {
+    S.FFDiag(Call, diag::note_constexpr_invalid_alignment) << Alignment;
+    return false;
+  }
+  unsigned SrcWidth = S.getCtx().getIntWidth(Call->getArg(0)->getType());
+  APSInt MaxValue(APInt::getOneBitSet(SrcWidth, SrcWidth - 1));
+  if (APSInt::compareValues(Alignment, MaxValue) > 0) {
+    S.FFDiag(Call, diag::note_constexpr_alignment_too_big)
+        << MaxValue << Call->getArg(0)->getType() << Alignment;
+    return false;
+  }
+
+  // The first parameter is either an integer or a pointer (but not a function
+  // pointer).
+  PrimType FirstArgT = *S.Ctx.classify(Call->getArg(0));
+
+  if (isIntegralType(FirstArgT)) {
+    const APSInt &Src = peekToAPSInt(S.Stk, FirstArgT, CallSize);
+    APSInt Align = Alignment.extOrTrunc(Src.getBitWidth());
+    if (BuiltinOp == Builtin::BI__builtin_align_up) {
+      APSInt AlignedVal =
+          APSInt((Src + (Align - 1)) & ~(Align - 1), Src.isUnsigned());
+      pushInteger(S, AlignedVal, Call->getType());
+    } else if (BuiltinOp == Builtin::BI__builtin_align_down) {
+      APSInt AlignedVal = APSInt(Src & ~(Align - 1), Src.isUnsigned());
+      pushInteger(S, AlignedVal, Call->getType());
+    } else {
+      assert(*S.Ctx.classify(Call->getType()) == PT_Bool);
+      S.Stk.push<Boolean>((Src & (Align - 1)) == 0);
+    }
+    return true;
+  }
+
+  assert(FirstArgT == PT_Ptr);
+  const Pointer &Ptr = S.Stk.peek<Pointer>(CallSize);
+
+  unsigned PtrOffset = Ptr.getByteOffset();
+  PtrOffset = Ptr.getIndex();
+  CharUnits BaseAlignment =
+      S.getCtx().getDeclAlign(Ptr.getDeclDesc()->asValueDecl());
+  CharUnits PtrAlign =
+      BaseAlignment.alignmentAtOffset(CharUnits::fromQuantity(PtrOffset));
+
+  if (BuiltinOp == Builtin::BI__builtin_is_aligned) {
+    if (PtrAlign.getQuantity() >= Alignment) {
+      S.Stk.push<Boolean>(true);
+      return true;
+    }
+    // If the alignment is not known to be sufficient, some cases could still
+    // be aligned at run time. However, if the requested alignment is less or
+    // equal to the base alignment and the offset is not aligned, we know that
+    // the run-time value can never be aligned.
+    if (BaseAlignment.getQuantity() >= Alignment &&
+        PtrAlign.getQuantity() < Alignment) {
+      S.Stk.push<Boolean>(false);
+      return true;
+    }
+
+    S.FFDiag(Call->getArg(0), diag::note_constexpr_alignment_compute)
+        << Alignment;
+    return false;
+  }
+
+  assert(BuiltinOp == Builtin::BI__builtin_align_down ||
+         BuiltinOp == Builtin::BI__builtin_align_up);
+
+  // For align_up/align_down, we can return the same value if the alignment
+  // is known to be greater or equal to the requested value.
+  if (PtrAlign.getQuantity() >= Alignment) {
+    S.Stk.push<Pointer>(Ptr);
+    return true;
+  }
+
+  // The alignment could be greater than the minimum at run-time, so we cannot
+  // infer much about the resulting pointer value. One case is possible:
+  // For `_Alignas(32) char buf[N]; __builtin_align_down(&buf[idx], 32)` we
+  // can infer the correct index if the requested alignment is smaller than
+  // the base alignment so we can perform the computation on the offset.
+  if (BaseAlignment.getQuantity() >= Alignment) {
+    assert(Alignment.getBitWidth() <= 64 &&
+           "Cannot handle > 64-bit address-space");
+    uint64_t Alignment64 = Alignment.getZExtValue();
+    CharUnits NewOffset =
+        CharUnits::fromQuantity(BuiltinOp == Builtin::BI__builtin_align_down
+                                    ? llvm::alignDown(PtrOffset, Alignment64)
+                                    : llvm::alignTo(PtrOffset, Alignment64));
+
+    S.Stk.push<Pointer>(Ptr.atIndex(NewOffset.getQuantity()));
+    return true;
+  }
+
+  // Otherwise, we cannot constant-evaluate the result.
+  S.FFDiag(Call->getArg(0), diag::note_constexpr_alignment_adjust) << Alignment;
+  return false;
+}
+
 bool InterpretBuiltin(InterpState &S, CodePtr OpPC, const Function *F,
                       const CallExpr *Call) {
   const InterpFrame *Frame = S.Current;
@@ -1291,6 +1402,13 @@ bool InterpretBuiltin(InterpState &S, CodePtr OpPC, const Function *F,
       return false;
     break;
 
+  case Builtin::BI__builtin_is_aligned:
+  case Builtin::BI__builtin_align_up:
+  case Builtin::BI__builtin_align_down:
+    if (!interp__builtin_is_aligned_up_down(S, OpPC, Frame, F, Call))
+      return false;
+    break;
+
   default:
     S.FFDiag(S.Current->getLocation(OpPC),
              diag::note_invalid_subexpr_in_const_expr)
diff --git a/clang/lib/AST/Interp/InterpFrame.cpp b/clang/lib/AST/Interp/InterpFrame.cpp
index 12e2e6ff9155..ba957546473e 100644
--- a/clang/lib/AST/Interp/InterpFrame.cpp
+++ b/clang/lib/AST/Interp/InterpFrame.cpp
@@ -152,6 +152,13 @@ void print(llvm::raw_ostream &OS, const Pointer &P, ASTContext &Ctx,
 }
 
 void InterpFrame::describe(llvm::raw_ostream &OS) const {
+  // We create frames for builtin functions as well, but we can't reliably
+  // diagnose them. The 'in call to' diagnostics for them add no value to the
+  // user _and_ it doesn't generally work since the argument types don't always
+  // match the function prototype. Just ignore them.
+  if (const auto *F = getFunction(); F && F->isBuiltin())
+    return;
+
   const FunctionDecl *F = getCallee();
   if (const auto *M = dyn_cast<CXXMethodDecl>(F);
       M && M->isInstance() && !isa<CXXConstructorDecl>(F)) {
diff --git a/clang/lib/AST/Interp/Pointer.h b/clang/lib/AST/Interp/Pointer.h
index fcd00aac62f9..b4475577b746 100644
--- a/clang/lib/AST/Interp/Pointer.h
+++ b/clang/lib/AST/Interp/Pointer.h
@@ -241,13 +241,10 @@ public:
 
   /// Checks if the pointer is null.
   bool isZero() const {
-    if (Offset != 0)
-      return false;
-
     if (isBlockPointer())
       return asBlockPointer().Pointee == nullptr;
     assert(isIntegralPointer());
-    return asIntPointer().Value == 0;
+    return asIntPointer().Value == 0 && Offset == 0;
   }
   /// Checks if the pointer is live.
   bool isLive() const {
diff --git a/clang/lib/AST/Interp/State.cpp b/clang/lib/AST/Interp/State.cpp
index 47fbf5145cd4..0d9dadec4b95 100644
--- a/clang/lib/AST/Interp/State.cpp
+++ b/clang/lib/AST/Interp/State.cpp
@@ -155,7 +155,8 @@ void State::addCallStack(unsigned Limit) {
     SmallString<128> Buffer;
     llvm::raw_svector_ostream Out(Buffer);
     F->describe(Out);
-    addDiag(CallRange.getBegin(), diag::note_constexpr_call_here)
-        << Out.str() << CallRange;
+    if (!Buffer.empty())
+      addDiag(CallRange.getBegin(), diag::note_constexpr_call_here)
+          << Out.str() << CallRange;
   }
 }
diff --git a/clang/lib/AST/StmtProfile.cpp b/clang/lib/AST/StmtProfile.cpp
index d2aac1e64038..789e4634bd29 100644
--- a/clang/lib/AST/StmtProfile.cpp
+++ b/clang/lib/AST/StmtProfile.cpp
@@ -2071,13 +2071,31 @@ StmtProfiler::VisitLambdaExpr(const LambdaExpr *S) {
   }
 
   CXXRecordDecl *Lambda = S->getLambdaClass();
-  ID.AddInteger(Lambda->getODRHash());
-
   for (const auto &Capture : Lambda->captures()) {
     ID.AddInteger(Capture.getCaptureKind());
     if (Capture.capturesVariable())
       VisitDecl(Capture.getCapturedVar());
   }
+
+  // Profiling the body of the lambda may be dangerous during deserialization.
+  // So we'd like only to profile the signature here.
+  ODRHash Hasher;
+  // FIXME: We can't get the operator call easily by
+  // `CXXRecordDecl::getLambdaCallOperator()` if we're in deserialization.
+  // So we have to do something raw here.
+  for (auto *SubDecl : Lambda->decls()) {
+    FunctionDecl *Call = nullptr;
+    if (auto *FTD = dyn_cast<FunctionTemplateDecl>(SubDecl))
+      Call = FTD->getTemplatedDecl();
+    else if (auto *FD = dyn_cast<FunctionDecl>(SubDecl))
+      Call = FD;
+
+    if (!Call)
+      continue;
+
+    Hasher.AddFunctionDecl(Call, /*SkipBody=*/true);
+  }
+  ID.AddInteger(Hasher.CalculateHash());
 }
 
 void
diff --git a/clang/lib/Basic/Cuda.cpp b/clang/lib/Basic/Cuda.cpp
index 1b1da6a1356f..113483db5729 100644
--- a/clang/lib/Basic/Cuda.cpp
+++ b/clang/lib/Basic/Cuda.cpp
@@ -86,7 +86,7 @@ static const CudaArchToStringMap arch_names[] = {
     // clang-format off
     {CudaArch::UNUSED, "", ""},
     SM2(20, "compute_20"), SM2(21, "compute_20"), // Fermi
-    SM(30), SM(32), SM(35), SM(37),  // Kepler
+    SM(30), {CudaArch::SM_32_, "sm_32", "compute_32"}, SM(35), SM(37),  // Kepler
     SM(50), SM(52), SM(53),          // Maxwell
     SM(60), SM(61), SM(62),          // Pascal
     SM(70), SM(72),                  // Volta
@@ -186,7 +186,7 @@ CudaVersion MinVersionForCudaArch(CudaArch A) {
   case CudaArch::SM_20:
   case CudaArch::SM_21:
   case CudaArch::SM_30:
-  case CudaArch::SM_32:
+  case CudaArch::SM_32_:
   case CudaArch::SM_35:
   case CudaArch::SM_37:
   case CudaArch::SM_50:
@@ -231,7 +231,7 @@ CudaVersion MaxVersionForCudaArch(CudaArch A) {
   case CudaArch::SM_21:
     return CudaVersion::CUDA_80;
   case CudaArch::SM_30:
-  case CudaArch::SM_32:
+  case CudaArch::SM_32_:
     return CudaVersion::CUDA_102;
   case CudaArch::SM_35:
   case CudaArch::SM_37:
diff --git a/clang/lib/Basic/Targets/NVPTX.cpp b/clang/lib/Basic/Targets/NVPTX.cpp
index b47c399fef60..8ad9e6e5f589 100644
--- a/clang/lib/Basic/Targets/NVPTX.cpp
+++ b/clang/lib/Basic/Targets/NVPTX.cpp
@@ -239,7 +239,7 @@ void NVPTXTargetInfo::getTargetDefines(const LangOptions &Opts,
         return "210";
       case CudaArch::SM_30:
         return "300";
-      case CudaArch::SM_32:
+      case CudaArch::SM_32_:
         return "320";
       case CudaArch::SM_35:
         return "350";
diff --git a/clang/lib/Basic/Targets/SPIR.h b/clang/lib/Basic/Targets/SPIR.h
index e25991e3dfe8..9a4a8b501460 100644
--- a/clang/lib/Basic/Targets/SPIR.h
+++ b/clang/lib/Basic/Targets/SPIR.h
@@ -259,7 +259,7 @@ public:
     SizeType = TargetInfo::UnsignedInt;
     PtrDiffType = IntPtrType = TargetInfo::SignedInt;
     resetDataLayout("e-p:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-"
-                    "v96:128-v192:256-v256:256-v512:512-v1024:1024");
+                    "v96:128-v192:256-v256:256-v512:512-v1024:1024-G1");
   }
 
   void getTargetDefines(const LangOptions &Opts,
@@ -276,7 +276,7 @@ public:
     SizeType = TargetInfo::UnsignedLong;
     PtrDiffType = IntPtrType = TargetInfo::SignedLong;
     resetDataLayout("e-i64:64-v16:16-v24:32-v32:32-v48:64-"
-                    "v96:128-v192:256-v256:256-v512:512-v1024:1024");
+                    "v96:128-v192:256-v256:256-v512:512-v1024:1024-G1");
   }
 
   void getTargetDefines(const LangOptions &Opts,
@@ -336,7 +336,7 @@ public:
     SizeType = TargetInfo::UnsignedInt;
     PtrDiffType = IntPtrType = TargetInfo::SignedInt;
     resetDataLayout("e-p:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-"
-                    "v96:128-v192:256-v256:256-v512:512-v1024:1024");
+                    "v96:128-v192:256-v256:256-v512:512-v1024:1024-G1");
   }
 
   void getTargetDefines(const LangOptions &Opts,
@@ -357,7 +357,7 @@ public:
     SizeType = TargetInfo::UnsignedLong;
     PtrDiffType = IntPtrType = TargetInfo::SignedLong;
     resetDataLayout("e-i64:64-v16:16-v24:32-v32:32-v48:64-"
-                    "v96:128-v192:256-v256:256-v512:512-v1024:1024");
+                    "v96:128-v192:256-v256:256-v512:512-v1024:1024-G1");
   }
 
   void getTargetDefines(const LangOptions &Opts,
diff --git a/clang/lib/CodeGen/CGCall.cpp b/clang/lib/CodeGen/CGCall.cpp
index 7a0bc6fa77b8..0c860a3ccbd2 100644
--- a/clang/lib/CodeGen/CGCall.cpp
+++ b/clang/lib/CodeGen/CGCall.cpp
@@ -4694,11 +4694,11 @@ void CodeGenFunction::EmitCallArg(CallArgList &args, const Expr *E,
     AggValueSlot Slot = args.isUsingInAlloca()
         ? createPlaceholderSlot(*this, type) : CreateAggTemp(type, "agg.tmp");
 
-    bool DestroyedInCallee = true, NeedsEHCleanup = true;
+    bool DestroyedInCallee = true, NeedsCleanup = true;
     if (const auto *RD = type->getAsCXXRecordDecl())
       DestroyedInCallee = RD->hasNonTrivialDestructor();
     else
-      NeedsEHCleanup = needsEHCleanup(type.isDestructedType());
+      NeedsCleanup = type.isDestructedType();
 
     if (DestroyedInCallee)
       Slot.setExternallyDestructed();
@@ -4707,14 +4707,15 @@ void CodeGenFunction::EmitCallArg(CallArgList &args, const Expr *E,
     RValue RV = Slot.asRValue();
     args.add(RV, type);
 
-    if (DestroyedInCallee && NeedsEHCleanup) {
+    if (DestroyedInCallee && NeedsCleanup) {
       // Create a no-op GEP between the placeholder and the cleanup so we can
       // RAUW it successfully.  It also serves as a marker of the first
       // instruction where the cleanup is active.
-      pushFullExprCleanup<DestroyUnpassedArg>(EHCleanup, Slot.getAddress(),
-                                              type);
+      pushFullExprCleanup<DestroyUnpassedArg>(NormalAndEHCleanup,
+                                              Slot.getAddress(), type);
       // This unreachable is a temporary marker which will be removed later.
-      llvm::Instruction *IsActive = Builder.CreateUnreachable();
+      llvm::Instruction *IsActive =
+          Builder.CreateFlagLoad(llvm::Constant::getNullValue(Int8PtrTy));
       args.addArgCleanupDeactivation(EHStack.stable_begin(), IsActive);
     }
     return;
diff --git a/clang/lib/CodeGen/CGCleanup.cpp b/clang/lib/CodeGen/CGCleanup.cpp
index 5bf48bc22a54..8683f19d9da2 100644
--- a/clang/lib/CodeGen/CGCleanup.cpp
+++ b/clang/lib/CodeGen/CGCleanup.cpp
@@ -634,12 +634,19 @@ static void destroyOptimisticNormalEntry(CodeGenFunction &CGF,
 /// Pops a cleanup block.  If the block includes a normal cleanup, the
 /// current insertion point is threaded through the cleanup, as are
 /// any branch fixups on the cleanup.
-void CodeGenFunction::PopCleanupBlock(bool FallthroughIsBranchThrough) {
+void CodeGenFunction::PopCleanupBlock(bool FallthroughIsBranchThrough,
+                                      bool ForDeactivation) {
   assert(!EHStack.empty() && "cleanup stack is empty!");
   assert(isa<EHCleanupScope>(*EHStack.begin()) && "top not a cleanup!");
   EHCleanupScope &Scope = cast<EHCleanupScope>(*EHStack.begin());
   assert(Scope.getFixupDepth() <= EHStack.getNumBranchFixups());
 
+  // If we are deactivating a normal cleanup, we need to pretend that the
+  // fallthrough is unreachable. We restore this IP before returning.
+  CGBuilderTy::InsertPoint NormalDeactivateOrigIP;
+  if (ForDeactivation && (Scope.isNormalCleanup() || !getLangOpts().EHAsynch)) {
+    NormalDeactivateOrigIP = Builder.saveAndClearIP();
+  }
   // Remember activation information.
   bool IsActive = Scope.isActive();
   Address NormalActiveFlag =
@@ -729,6 +736,8 @@ void CodeGenFunction::PopCleanupBlock(bool FallthroughIsBranchThrough) {
     EHStack.popCleanup(); // safe because there are no fixups
     assert(EHStack.getNumBranchFixups() == 0 ||
            EHStack.hasNormalCleanups());
+    if (NormalDeactivateOrigIP.isSet())
+      Builder.restoreIP(NormalDeactivateOrigIP);
     return;
   }
 
@@ -765,9 +774,16 @@ void CodeGenFunction::PopCleanupBlock(bool FallthroughIsBranchThrough) {
   if (!RequiresNormalCleanup) {
     // Mark CPP scope end for passed-by-value Arg temp
     //   per Windows ABI which is "normally" Cleanup in callee
-    if (IsEHa && getInvokeDest() && Builder.GetInsertBlock()) {
-      if (Personality.isMSVCXXPersonality())
+    if (IsEHa && getInvokeDest()) {
+      // If we are deactivating a normal cleanup then we don't have a
+      // fallthrough. Restore original IP to emit CPP scope ends in the correct
+      // block.
+      if (NormalDeactivateOrigIP.isSet())
+        Builder.restoreIP(NormalDeactivateOrigIP);
+      if (Personality.isMSVCXXPersonality() && Builder.GetInsertBlock())
         EmitSehCppScopeEnd();
+      if (NormalDeactivateOrigIP.isSet())
+        NormalDeactivateOrigIP = Builder.saveAndClearIP();
     }
     destroyOptimisticNormalEntry(*this, Scope);
     Scope.MarkEmitted();
@@ -992,6 +1008,8 @@ void CodeGenFunction::PopCleanupBlock(bool FallthroughIsBranchThrough) {
     }
   }
 
+  if (NormalDeactivateOrigIP.isSet())
+    Builder.restoreIP(NormalDeactivateOrigIP);
   assert(EHStack.hasNormalCleanups() || EHStack.getNumBranchFixups() == 0);
 
   // Emit the EH cleanup if required.
@@ -1281,17 +1299,8 @@ void CodeGenFunction::DeactivateCleanupBlock(EHScopeStack::stable_iterator C,
   // to the current RunCleanupsScope.
   if (C == EHStack.stable_begin() &&
       CurrentCleanupScopeDepth.strictlyEncloses(C)) {
-    // Per comment below, checking EHAsynch is not really necessary
-    // it's there to assure zero-impact w/o EHAsynch option
-    if (!Scope.isNormalCleanup() && getLangOpts().EHAsynch) {
-      PopCleanupBlock();
-    } else {
-      // If it's a normal cleanup, we need to pretend that the
-      // fallthrough is unreachable.
-      CGBuilderTy::InsertPoint SavedIP = Builder.saveAndClearIP();
-      PopCleanupBlock();
-      Builder.restoreIP(SavedIP);
-    }
+    PopCleanupBlock(/*FallthroughIsBranchThrough=*/false,
+                    /*ForDeactivation=*/true);
     return;
   }
 
diff --git a/clang/lib/CodeGen/CGOpenMPRuntimeGPU.cpp b/clang/lib/CodeGen/CGOpenMPRuntimeGPU.cpp
index 59ba03c6b862..eb716520e5ff 100644
--- a/clang/lib/CodeGen/CGOpenMPRuntimeGPU.cpp
+++ b/clang/lib/CodeGen/CGOpenMPRuntimeGPU.cpp
@@ -3466,7 +3466,7 @@ void CGOpenMPRuntimeGPU::processRequiresDirective(
       case CudaArch::SM_20:
       case CudaArch::SM_21:
       case CudaArch::SM_30:
-      case CudaArch::SM_32:
+      case CudaArch::SM_32_:
       case CudaArch::SM_35:
       case CudaArch::SM_37:
       case CudaArch::SM_50:
diff --git a/clang/lib/CodeGen/CodeGenFunction.h b/clang/lib/CodeGen/CodeGenFunction.h
index c49e9fd00c8d..d99188671f1f 100644
--- a/clang/lib/CodeGen/CodeGenFunction.h
+++ b/clang/lib/CodeGen/CodeGenFunction.h
@@ -957,7 +957,8 @@ public:
 
   /// PopCleanupBlock - Will pop the cleanup entry on the stack and
   /// process all branch fixups.
-  void PopCleanupBlock(bool FallThroughIsBranchThrough = false);
+  void PopCleanupBlock(bool FallThroughIsBranchThrough = false,
+                       bool ForDeactivation = false);
 
   /// DeactivateCleanupBlock - Deactivates the given cleanup block.
   /// The block cannot be reactivated.  Pops it if it's the top of the
diff --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp
index 6d52eced1042..096ed14f9570 100644
--- a/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -346,11 +346,14 @@ static bool addExceptionArgs(const ArgList &Args, types::ID InputType,
   bool EH = Args.hasFlag(options::OPT_fexceptions, options::OPT_fno_exceptions,
                          false);
 
-  bool EHa = Args.hasFlag(options::OPT_fasync_exceptions,
-                          options::OPT_fno_async_exceptions, false);
-  if (EHa) {
-    CmdArgs.push_back("-fasync-exceptions");
-    EH = true;
+  // Async exceptions are Windows MSVC only.
+  if (Triple.isWindowsMSVCEnvironment()) {
+    bool EHa = Args.hasFlag(options::OPT_fasync_exceptions,
+                            options::OPT_fno_async_exceptions, false);
+    if (EHa) {
+      CmdArgs.push_back("-fasync-exceptions");
+      EH = true;
+    }
   }
 
   // Obj-C exceptions are enabled by default, regardless of -fexceptions. This
@@ -8102,7 +8105,8 @@ struct EHFlags {
 ///      The 'a' modifier is unimplemented and fundamentally hard in LLVM IR.
 /// - c: Assume that extern "C" functions are implicitly nounwind.
 /// The default is /EHs-c-, meaning cleanups are disabled.
-static EHFlags parseClangCLEHFlags(const Driver &D, const ArgList &Args) {
+static EHFlags parseClangCLEHFlags(const Driver &D, const ArgList &Args,
+                                   bool isWindowsMSVC) {
   EHFlags EH;
 
   std::vector<std::string> EHArgs =
@@ -8112,8 +8116,15 @@ static EHFlags parseClangCLEHFlags(const Driver &D, const ArgList &Args) {
       switch (EHVal[I]) {
       case 'a':
         EH.Asynch = maybeConsumeDash(EHVal, I);
-        if (EH.Asynch)
+        if (EH.Asynch) {
+          // Async exceptions are Windows MSVC only.
+          if (!isWindowsMSVC) {
+            EH.Asynch = false;
+            D.Diag(clang::diag::warn_drv_unused_argument) << "/EHa" << EHVal;
+            continue;
+          }
           EH.Synch = false;
+        }
         continue;
       case 'c':
         EH.NoUnwindC = maybeConsumeDash(EHVal, I);
@@ -8177,7 +8188,8 @@ void Clang::AddClangCLArgs(const ArgList &Args, types::ID InputType,
 
   const Driver &D = getToolChain().getDriver();
 
-  EHFlags EH = parseClangCLEHFlags(D, Args);
+  bool IsWindowsMSVC = getToolChain().getTriple().isWindowsMSVCEnvironment();
+  EHFlags EH = parseClangCLEHFlags(D, Args, IsWindowsMSVC);
   if (!isNVPTX && (EH.Synch || EH.Asynch)) {
     if (types::isCXX(InputType))
       CmdArgs.push_back("-fcxx-exceptions");
diff --git a/clang/lib/Index/USRGeneration.cpp b/clang/lib/Index/USRGeneration.cpp
index 5acc86191f8f..31c4a3345c09 100644
--- a/clang/lib/Index/USRGeneration.cpp
+++ b/clang/lib/Index/USRGeneration.cpp
@@ -267,10 +267,13 @@ void USRGenerator::VisitFunctionDecl(const FunctionDecl *D) {
     Out << '>';
   }
 
+  QualType CanonicalType = D->getType().getCanonicalType();
   // Mangle in type information for the arguments.
-  for (auto *PD : D->parameters()) {
-    Out << '#';
-    VisitType(PD->getType());
+  if (const auto *FPT = CanonicalType->getAs<FunctionProtoType>()) {
+    for (QualType PT : FPT->param_types()) {
+      Out << '#';
+      VisitType(PT);
+    }
   }
   if (D->isVariadic())
     Out << '.';
diff --git a/clang/lib/Parse/ParseDecl.cpp b/clang/lib/Parse/ParseDecl.cpp
index 2b934234b7cf..c881b3750777 100644
--- a/clang/lib/Parse/ParseDecl.cpp
+++ b/clang/lib/Parse/ParseDecl.cpp
@@ -28,6 +28,7 @@
 #include "clang/Sema/Scope.h"
 #include "clang/Sema/SemaCUDA.h"
 #include "clang/Sema/SemaDiagnostic.h"
+#include "clang/Sema/SemaOpenMP.h"
 #include "llvm/ADT/SmallSet.h"
 #include "llvm/ADT/SmallString.h"
 #include "llvm/ADT/StringSwitch.h"
@@ -2383,7 +2384,7 @@ Parser::DeclGroupPtrTy Parser::ParseDeclGroup(ParsingDeclSpec &DS,
       }
 
       if (getLangOpts().OpenMP)
-        Actions.startOpenMPCXXRangeFor();
+        Actions.OpenMP().startOpenMPCXXRangeFor();
       if (Tok.is(tok::l_brace))
         FRI->RangeExpr = ParseBraceInitializer();
       else
diff --git a/clang/lib/Parse/ParseExpr.cpp b/clang/lib/Parse/ParseExpr.cpp
index 473ec9afd601..32d96f81c4c8 100644
--- a/clang/lib/Parse/ParseExpr.cpp
+++ b/clang/lib/Parse/ParseExpr.cpp
@@ -31,6 +31,7 @@
 #include "clang/Sema/ParsedTemplate.h"
 #include "clang/Sema/Scope.h"
 #include "clang/Sema/SemaCUDA.h"
+#include "clang/Sema/SemaOpenMP.h"
 #include "clang/Sema/SemaSYCL.h"
 #include "clang/Sema/TypoCorrection.h"
 #include "llvm/ADT/SmallVector.h"
@@ -2075,7 +2076,7 @@ Parser::ParsePostfixExpressionSuffix(ExprResult LHS) {
           // replace this call to ActOnOpenACCArraySectionExpr in the future.
           // Eventually we'll genericize the OPenMPArraySectionExpr type as
           // well.
-          LHS = Actions.ActOnOMPArraySectionExpr(
+          LHS = Actions.OpenMP().ActOnOMPArraySectionExpr(
               LHS.get(), Loc, ArgExprs.empty() ? nullptr : ArgExprs[0],
               ColonLocFirst, ColonLocSecond, Length.get(), Stride.get(), RLoc);
         } else {
@@ -3277,7 +3278,7 @@ Parser::ParseParenExpression(ParenParseOption &ExprType, bool stopIfCastExpr,
     if (ErrorFound) {
       Result = ExprError();
     } else if (!Result.isInvalid()) {
-      Result = Actions.ActOnOMPArrayShapingExpr(
+      Result = Actions.OpenMP().ActOnOMPArrayShapingExpr(
           Result.get(), OpenLoc, RParenLoc, OMPDimensions, OMPBracketsRanges);
     }
     return Result;
diff --git a/clang/lib/Parse/ParseOpenMP.cpp b/clang/lib/Parse/ParseOpenMP.cpp
index 814126e321d3..480201bc06f6 100644
--- a/clang/lib/Parse/ParseOpenMP.cpp
+++ b/clang/lib/Parse/ParseOpenMP.cpp
@@ -21,6 +21,7 @@
 #include "clang/Parse/RAIIObjectsForParser.h"
 #include "clang/Sema/EnterExpressionEvaluationContext.h"
 #include "clang/Sema/Scope.h"
+#include "clang/Sema/SemaOpenMP.h"
 #include "llvm/ADT/PointerIntPair.h"
 #include "llvm/ADT/StringSwitch.h"
 #include "llvm/ADT/UniqueVector.h"
@@ -87,7 +88,7 @@ public:
   DeclDirectiveListParserHelper(Parser *P, OpenMPDirectiveKind Kind)
       : P(P), Kind(Kind) {}
   void operator()(CXXScopeSpec &SS, DeclarationNameInfo NameInfo) {
-    ExprResult Res = P->getActions().ActOnOpenMPIdExpression(
+    ExprResult Res = P->getActions().OpenMP().ActOnOpenMPIdExpression(
         P->getCurScope(), SS, NameInfo, Kind);
     if (Res.isUsable())
       Identifiers.push_back(Res.get());
@@ -322,8 +323,8 @@ Parser::ParseOpenMPDeclareReductionDirective(AccessSpecifier AS) {
     SourceRange Range;
     TypeResult TR = ParseTypeName(&Range, DeclaratorContext::Prototype, AS);
     if (TR.isUsable()) {
-      QualType ReductionType =
-          Actions.ActOnOpenMPDeclareReductionType(Range.getBegin(), TR);
+      QualType ReductionType = Actions.OpenMP().ActOnOpenMPDeclareReductionType(
+          Range.getBegin(), TR);
       if (!ReductionType.isNull()) {
         ReductionTypes.push_back(
             std::make_pair(ReductionType, Range.getBegin()));
@@ -363,8 +364,10 @@ Parser::ParseOpenMPDeclareReductionDirective(AccessSpecifier AS) {
     return DeclGroupPtrTy();
   }
 
-  DeclGroupPtrTy DRD = Actions.ActOnOpenMPDeclareReductionDirectiveStart(
-      getCurScope(), Actions.getCurLexicalContext(), Name, ReductionTypes, AS);
+  DeclGroupPtrTy DRD =
+      Actions.OpenMP().ActOnOpenMPDeclareReductionDirectiveStart(
+          getCurScope(), Actions.getCurLexicalContext(), Name, ReductionTypes,
+          AS);
 
   // Parse <combiner> expression and then parse initializer if any for each
   // correct type.
@@ -375,10 +378,11 @@ Parser::ParseOpenMPDeclareReductionDirective(AccessSpecifier AS) {
                                     Scope::CompoundStmtScope |
                                     Scope::OpenMPDirectiveScope);
     // Parse <combiner> expression.
-    Actions.ActOnOpenMPDeclareReductionCombinerStart(getCurScope(), D);
+    Actions.OpenMP().ActOnOpenMPDeclareReductionCombinerStart(getCurScope(), D);
     ExprResult CombinerResult = Actions.ActOnFinishFullExpr(
         ParseExpression().get(), D->getLocation(), /*DiscardedValue*/ false);
-    Actions.ActOnOpenMPDeclareReductionCombinerEnd(D, CombinerResult.get());
+    Actions.OpenMP().ActOnOpenMPDeclareReductionCombinerEnd(
+        D, CombinerResult.get());
 
     if (CombinerResult.isInvalid() && Tok.isNot(tok::r_paren) &&
         Tok.isNot(tok::annot_pragma_openmp_end)) {
@@ -411,8 +415,8 @@ Parser::ParseOpenMPDeclareReductionDirective(AccessSpecifier AS) {
                                         Scope::OpenMPDirectiveScope);
         // Parse expression.
         VarDecl *OmpPrivParm =
-            Actions.ActOnOpenMPDeclareReductionInitializerStart(getCurScope(),
-                                                                D);
+            Actions.OpenMP().ActOnOpenMPDeclareReductionInitializerStart(
+                getCurScope(), D);
         // Check if initializer is omp_priv <init_expr> or something else.
         if (Tok.is(tok::identifier) &&
             Tok.getIdentifierInfo()->isStr("omp_priv")) {
@@ -423,7 +427,7 @@ Parser::ParseOpenMPDeclareReductionDirective(AccessSpecifier AS) {
               ParseAssignmentExpression().get(), D->getLocation(),
               /*DiscardedValue*/ false);
         }
-        Actions.ActOnOpenMPDeclareReductionInitializerEnd(
+        Actions.OpenMP().ActOnOpenMPDeclareReductionInitializerEnd(
             D, InitializerResult.get(), OmpPrivParm);
         if (InitializerResult.isInvalid() && Tok.isNot(tok::r_paren) &&
             Tok.isNot(tok::annot_pragma_openmp_end)) {
@@ -444,8 +448,8 @@ Parser::ParseOpenMPDeclareReductionDirective(AccessSpecifier AS) {
     else
       TPA.Commit();
   }
-  return Actions.ActOnOpenMPDeclareReductionDirectiveEnd(getCurScope(), DRD,
-                                                         IsCorrect);
+  return Actions.OpenMP().ActOnOpenMPDeclareReductionDirectiveEnd(
+      getCurScope(), DRD, IsCorrect);
 }
 
 void Parser::ParseOpenMPReductionInitializerForDecl(VarDecl *OmpPrivParm) {
@@ -569,8 +573,8 @@ Parser::ParseOpenMPDeclareMapperDirective(AccessSpecifier AS) {
   SourceRange Range;
   TypeResult ParsedType = parseOpenMPDeclareMapperVarDecl(Range, VName, AS);
   if (ParsedType.isUsable())
-    MapperType =
-        Actions.ActOnOpenMPDeclareMapperType(Range.getBegin(), ParsedType);
+    MapperType = Actions.OpenMP().ActOnOpenMPDeclareMapperType(Range.getBegin(),
+                                                               ParsedType);
   if (MapperType.isNull())
     IsCorrect = false;
   if (!IsCorrect) {
@@ -591,11 +595,13 @@ Parser::ParseOpenMPDeclareMapperDirective(AccessSpecifier AS) {
   unsigned ScopeFlags = Scope::FnScope | Scope::DeclScope |
                         Scope::CompoundStmtScope | Scope::OpenMPDirectiveScope;
   ParseScope OMPDirectiveScope(this, ScopeFlags);
-  Actions.StartOpenMPDSABlock(OMPD_declare_mapper, DirName, getCurScope(), Loc);
+  Actions.OpenMP().StartOpenMPDSABlock(OMPD_declare_mapper, DirName,
+                                       getCurScope(), Loc);
 
   // Add the mapper variable declaration.
-  ExprResult MapperVarRef = Actions.ActOnOpenMPDeclareMapperDirectiveVarDecl(
-      getCurScope(), MapperType, Range.getBegin(), VName);
+  ExprResult MapperVarRef =
+      Actions.OpenMP().ActOnOpenMPDeclareMapperDirectiveVarDecl(
+          getCurScope(), MapperType, Range.getBegin(), VName);
 
   // Parse map clauses.
   SmallVector<OMPClause *, 6> Clauses;
@@ -603,7 +609,7 @@ Parser::ParseOpenMPDeclareMapperDirective(AccessSpecifier AS) {
     OpenMPClauseKind CKind = Tok.isAnnotation()
                                  ? OMPC_unknown
                                  : getOpenMPClauseKind(PP.getSpelling(Tok));
-    Actions.StartOpenMPClause(CKind);
+    Actions.OpenMP().StartOpenMPClause(CKind);
     OMPClause *Clause =
         ParseOpenMPClause(OMPD_declare_mapper, CKind, Clauses.empty());
     if (Clause)
@@ -613,7 +619,7 @@ Parser::ParseOpenMPDeclareMapperDirective(AccessSpecifier AS) {
     // Skip ',' if any.
     if (Tok.is(tok::comma))
       ConsumeToken();
-    Actions.EndOpenMPClause();
+    Actions.OpenMP().EndOpenMPClause();
   }
   if (Clauses.empty()) {
     Diag(Tok, diag::err_omp_expected_clause)
@@ -622,9 +628,9 @@ Parser::ParseOpenMPDeclareMapperDirective(AccessSpecifier AS) {
   }
 
   // Exit scope.
-  Actions.EndOpenMPDSABlock(nullptr);
+  Actions.OpenMP().EndOpenMPDSABlock(nullptr);
   OMPDirectiveScope.Exit();
-  DeclGroupPtrTy DG = Actions.ActOnOpenMPDeclareMapperDirective(
+  DeclGroupPtrTy DG = Actions.OpenMP().ActOnOpenMPDeclareMapperDirective(
       getCurScope(), Actions.getCurLexicalContext(), MapperId, MapperType,
       Range.getBegin(), VName, AS, MapperVarRef.get(), Clauses);
   if (!IsCorrect)
@@ -652,7 +658,8 @@ TypeResult Parser::parseOpenMPDeclareMapperVarDecl(SourceRange &Range,
   }
   Name = Actions.GetNameForDeclarator(DeclaratorInfo).getName();
 
-  return Actions.ActOnOpenMPDeclareMapperVarDecl(getCurScope(), DeclaratorInfo);
+  return Actions.OpenMP().ActOnOpenMPDeclareMapperVarDecl(getCurScope(),
+                                                          DeclaratorInfo);
 }
 
 namespace {
@@ -748,7 +755,7 @@ static bool parseDeclareSimdClauses(
       OpenMPClauseKind CKind = getOpenMPClauseKind(ClauseName);
       if (CKind == OMPC_uniform || CKind == OMPC_aligned ||
           CKind == OMPC_linear) {
-        Sema::OpenMPVarListDataTy Data;
+        SemaOpenMP::OpenMPVarListDataTy Data;
         SmallVectorImpl<Expr *> *Vars = &Uniforms;
         if (CKind == OMPC_aligned) {
           Vars = &Aligneds;
@@ -768,7 +775,7 @@ static bool parseDeclareSimdClauses(
           assert(0 <= Data.ExtraModifier &&
                  Data.ExtraModifier <= OMPC_LINEAR_unknown &&
                  "Unexpected linear modifier.");
-          if (P.getActions().CheckOpenMPLinearModifier(
+          if (P.getActions().OpenMP().CheckOpenMPLinearModifier(
                   static_cast<OpenMPLinearClauseKind>(Data.ExtraModifier),
                   Data.ExtraModifierLoc))
             Data.ExtraModifier = OMPC_LINEAR_val;
@@ -816,7 +823,7 @@ Parser::ParseOMPDeclareSimdClauses(Parser::DeclGroupPtrTy Ptr,
   SourceLocation EndLoc = ConsumeAnnotationToken();
   if (IsError)
     return Ptr;
-  return Actions.ActOnOpenMPDeclareSimdDirective(
+  return Actions.OpenMP().ActOnOpenMPDeclareSimdDirective(
       Ptr, BS, Simdlen.get(), Uniforms, Aligneds, Alignments, Linears,
       LinModifiers, Steps, SourceRange(Loc, EndLoc));
 }
@@ -1412,7 +1419,8 @@ void Parser::ParseOMPDeclareVariantClauses(Parser::DeclGroupPtrTy Ptr,
     return;
   }
 
-  OMPTraitInfo *ParentTI = Actions.getOMPTraitInfoForSurroundingScope();
+  OMPTraitInfo *ParentTI =
+      Actions.OpenMP().getOMPTraitInfoForSurroundingScope();
   ASTContext &ASTCtx = Actions.getASTContext();
   OMPTraitInfo &TI = ASTCtx.getNewOMPTraitInfo();
   SmallVector<Expr *, 6> AdjustNothing;
@@ -1445,7 +1453,7 @@ void Parser::ParseOMPDeclareVariantClauses(Parser::DeclGroupPtrTy Ptr,
       case OMPC_adjust_args: {
         AdjustArgsLoc = Tok.getLocation();
         ConsumeToken();
-        Sema::OpenMPVarListDataTy Data;
+        SemaOpenMP::OpenMPVarListDataTy Data;
         SmallVector<Expr *> Vars;
         IsError = ParseOpenMPVarList(OMPD_declare_variant, OMPC_adjust_args,
                                      Vars, Data);
@@ -1486,12 +1494,12 @@ void Parser::ParseOMPDeclareVariantClauses(Parser::DeclGroupPtrTy Ptr,
   }
 
   std::optional<std::pair<FunctionDecl *, Expr *>> DeclVarData =
-      Actions.checkOpenMPDeclareVariantFunction(
+      Actions.OpenMP().checkOpenMPDeclareVariantFunction(
           Ptr, AssociatedFunction.get(), TI, AppendArgs.size(),
           SourceRange(Loc, Tok.getLocation()));
 
   if (DeclVarData && !TI.Sets.empty())
-    Actions.ActOnOpenMPDeclareVariantDirective(
+    Actions.OpenMP().ActOnOpenMPDeclareVariantDirective(
         DeclVarData->first, DeclVarData->second, TI, AdjustNothing,
         AdjustNeedDevicePtr, AppendArgs, AdjustArgsLoc, AppendArgsLoc,
         SourceRange(Loc, Tok.getLocation()));
@@ -1642,7 +1650,7 @@ void Parser::ParseOpenMPClauses(OpenMPDirectiveKind DKind,
     OpenMPClauseKind CKind = Tok.isAnnotation()
                                  ? OMPC_unknown
                                  : getOpenMPClauseKind(PP.getSpelling(Tok));
-    Actions.StartOpenMPClause(CKind);
+    Actions.OpenMP().StartOpenMPClause(CKind);
     OMPClause *Clause = ParseOpenMPClause(
         DKind, CKind, !FirstClauses[unsigned(CKind)].getInt());
     SkipUntil(tok::comma, tok::identifier, tok::annot_pragma_openmp_end,
@@ -1651,13 +1659,13 @@ void Parser::ParseOpenMPClauses(OpenMPDirectiveKind DKind,
     if (Clause != nullptr)
       Clauses.push_back(Clause);
     if (Tok.is(tok::annot_pragma_openmp_end)) {
-      Actions.EndOpenMPClause();
+      Actions.OpenMP().EndOpenMPClause();
       break;
     }
     // Skip ',' if any.
     if (Tok.is(tok::comma))
       ConsumeToken();
-    Actions.EndOpenMPClause();
+    Actions.OpenMP().EndOpenMPClause();
   }
 }
 
@@ -1750,12 +1758,13 @@ void Parser::ParseOpenMPAssumesDirective(OpenMPDirectiveKind DKind,
     Assumptions.push_back(Assumption);
   }
 
-  Actions.ActOnOpenMPAssumesDirective(Loc, DKind, Assumptions, SkippedClauses);
+  Actions.OpenMP().ActOnOpenMPAssumesDirective(Loc, DKind, Assumptions,
+                                               SkippedClauses);
 }
 
 void Parser::ParseOpenMPEndAssumesDirective(SourceLocation Loc) {
-  if (Actions.isInOpenMPAssumeScope())
-    Actions.ActOnOpenMPEndAssumesDirective();
+  if (Actions.OpenMP().isInOpenMPAssumeScope())
+    Actions.OpenMP().ActOnOpenMPEndAssumesDirective();
   else
     Diag(Loc, diag::err_expected_begin_assumes);
 }
@@ -1811,7 +1820,7 @@ parseOpenMPSimpleClause(Parser &P, OpenMPClauseKind Kind) {
 }
 
 void Parser::ParseOMPDeclareTargetClauses(
-    Sema::DeclareTargetContextInfo &DTCI) {
+    SemaOpenMP::DeclareTargetContextInfo &DTCI) {
   SourceLocation DeviceTypeLoc;
   bool RequiresToOrLinkOrIndirectClause = false;
   bool HasToOrLinkOrIndirectClause = false;
@@ -1910,11 +1919,11 @@ void Parser::ParseOMPDeclareTargetClauses(
     if (DTCI.Kind == OMPD_declare_target || HasIdentifier) {
       auto &&Callback = [this, MT, &DTCI](CXXScopeSpec &SS,
                                           DeclarationNameInfo NameInfo) {
-        NamedDecl *ND =
-            Actions.lookupOpenMPDeclareTargetName(getCurScope(), SS, NameInfo);
+        NamedDecl *ND = Actions.OpenMP().lookupOpenMPDeclareTargetName(
+            getCurScope(), SS, NameInfo);
         if (!ND)
           return;
-        Sema::DeclareTargetContextInfo::MapInfo MI{MT, NameInfo.getLoc()};
+        SemaOpenMP::DeclareTargetContextInfo::MapInfo MI{MT, NameInfo.getLoc()};
         bool FirstMapping = DTCI.ExplicitlyMapped.try_emplace(ND, MI).second;
         if (!FirstMapping)
           Diag(NameInfo.getLoc(), diag::err_omp_declare_target_multiple)
@@ -2090,8 +2099,8 @@ Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirectiveWithExtDecl(
       skipUntilPragmaOpenMPEnd(DKind);
       // Skip the last annot_pragma_openmp_end.
       ConsumeAnnotationToken();
-      return Actions.ActOnOpenMPThreadprivateDirective(Loc,
-                                                       Helper.getIdentifiers());
+      return Actions.OpenMP().ActOnOpenMPThreadprivateDirective(
+          Loc, Helper.getIdentifiers());
     }
     break;
   }
@@ -2109,7 +2118,7 @@ Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirectiveWithExtDecl(
           OpenMPClauseKind CKind =
               Tok.isAnnotation() ? OMPC_unknown
                                  : getOpenMPClauseKind(PP.getSpelling(Tok));
-          Actions.StartOpenMPClause(CKind);
+          Actions.OpenMP().StartOpenMPClause(CKind);
           OMPClause *Clause = ParseOpenMPClause(
               OMPD_allocate, CKind, !FirstClauses[unsigned(CKind)].getInt());
           SkipUntil(tok::comma, tok::identifier, tok::annot_pragma_openmp_end,
@@ -2118,20 +2127,20 @@ Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirectiveWithExtDecl(
           if (Clause != nullptr)
             Clauses.push_back(Clause);
           if (Tok.is(tok::annot_pragma_openmp_end)) {
-            Actions.EndOpenMPClause();
+            Actions.OpenMP().EndOpenMPClause();
             break;
           }
           // Skip ',' if any.
           if (Tok.is(tok::comma))
             ConsumeToken();
-          Actions.EndOpenMPClause();
+          Actions.OpenMP().EndOpenMPClause();
         }
         skipUntilPragmaOpenMPEnd(DKind);
       }
       // Skip the last annot_pragma_openmp_end.
       ConsumeAnnotationToken();
-      return Actions.ActOnOpenMPAllocateDirective(Loc, Helper.getIdentifiers(),
-                                                  Clauses);
+      return Actions.OpenMP().ActOnOpenMPAllocateDirective(
+          Loc, Helper.getIdentifiers(), Clauses);
     }
     break;
   }
@@ -2150,7 +2159,7 @@ Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirectiveWithExtDecl(
       OpenMPClauseKind CKind = Tok.isAnnotation()
                                    ? OMPC_unknown
                                    : getOpenMPClauseKind(PP.getSpelling(Tok));
-      Actions.StartOpenMPClause(CKind);
+      Actions.OpenMP().StartOpenMPClause(CKind);
       OMPClause *Clause = ParseOpenMPClause(
           OMPD_requires, CKind, !FirstClauses[unsigned(CKind)].getInt());
       SkipUntil(tok::comma, tok::identifier, tok::annot_pragma_openmp_end,
@@ -2159,13 +2168,13 @@ Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirectiveWithExtDecl(
       if (Clause != nullptr)
         Clauses.push_back(Clause);
       if (Tok.is(tok::annot_pragma_openmp_end)) {
-        Actions.EndOpenMPClause();
+        Actions.OpenMP().EndOpenMPClause();
         break;
       }
       // Skip ',' if any.
       if (Tok.is(tok::comma))
         ConsumeToken();
-      Actions.EndOpenMPClause();
+      Actions.OpenMP().EndOpenMPClause();
     }
     // Consume final annot_pragma_openmp_end
     if (Clauses.empty()) {
@@ -2175,14 +2184,15 @@ Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirectiveWithExtDecl(
       return nullptr;
     }
     ConsumeAnnotationToken();
-    return Actions.ActOnOpenMPRequiresDirective(StartLoc, Clauses);
+    return Actions.OpenMP().ActOnOpenMPRequiresDirective(StartLoc, Clauses);
   }
   case OMPD_error: {
     SmallVector<OMPClause *, 1> Clauses;
     SourceLocation StartLoc = ConsumeToken();
     ParseOpenMPClauses(DKind, Clauses, StartLoc);
-    Actions.ActOnOpenMPErrorDirective(Clauses, StartLoc, SourceLocation(),
-                                      /*InExContext = */ false);
+    Actions.OpenMP().ActOnOpenMPErrorDirective(Clauses, StartLoc,
+                                               SourceLocation(),
+                                               /*InExContext = */ false);
     break;
   }
   case OMPD_assumes:
@@ -2217,7 +2227,8 @@ Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirectiveWithExtDecl(
     // { #pragma omp end declare variant }
     //
     ConsumeToken();
-    OMPTraitInfo *ParentTI = Actions.getOMPTraitInfoForSurroundingScope();
+    OMPTraitInfo *ParentTI =
+        Actions.OpenMP().getOMPTraitInfoForSurroundingScope();
     ASTContext &ASTCtx = Actions.getASTContext();
     OMPTraitInfo &TI = ASTCtx.getNewOMPTraitInfo();
     if (parseOMPDeclareVariantMatchClause(Loc, TI, ParentTI)) {
@@ -2248,7 +2259,7 @@ Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirectiveWithExtDecl(
         /* ConstructTraits */ ArrayRef<llvm::omp::TraitProperty>());
 
     if (isVariantApplicableInContext(VMI, OMPCtx, /* DeviceSetOnly */ true)) {
-      Actions.ActOnOpenMPBeginDeclareVariant(Loc, TI);
+      Actions.OpenMP().ActOnOpenMPBeginDeclareVariant(Loc, TI);
       break;
     }
 
@@ -2275,8 +2286,8 @@ Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirectiveWithExtDecl(
     break;
   }
   case OMPD_end_declare_variant: {
-    if (Actions.isInOpenMPDeclareVariantScope())
-      Actions.ActOnOpenMPEndDeclareVariant();
+    if (Actions.OpenMP().isInOpenMPDeclareVariantScope())
+      Actions.OpenMP().ActOnOpenMPEndDeclareVariant();
     else
       Diag(Loc, diag::err_expected_begin_declare_variant);
     ConsumeToken();
@@ -2331,7 +2342,7 @@ Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirectiveWithExtDecl(
   case OMPD_declare_target: {
     SourceLocation DTLoc = ConsumeAnyToken();
     bool HasClauses = Tok.isNot(tok::annot_pragma_openmp_end);
-    Sema::DeclareTargetContextInfo DTCI(DKind, DTLoc);
+    SemaOpenMP::DeclareTargetContextInfo DTCI(DKind, DTLoc);
     if (HasClauses)
       ParseOMPDeclareTargetClauses(DTCI);
     bool HasImplicitMappings = DKind == OMPD_begin_declare_target ||
@@ -2342,24 +2353,24 @@ Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirectiveWithExtDecl(
     ConsumeAnyToken();
 
     if (HasImplicitMappings) {
-      Actions.ActOnStartOpenMPDeclareTargetContext(DTCI);
+      Actions.OpenMP().ActOnStartOpenMPDeclareTargetContext(DTCI);
       return nullptr;
     }
 
-    Actions.ActOnFinishedOpenMPDeclareTargetContext(DTCI);
+    Actions.OpenMP().ActOnFinishedOpenMPDeclareTargetContext(DTCI);
     llvm::SmallVector<Decl *, 4> Decls;
     for (auto &It : DTCI.ExplicitlyMapped)
       Decls.push_back(It.first);
     return Actions.BuildDeclaratorGroup(Decls);
   }
   case OMPD_end_declare_target: {
-    if (!Actions.isInOpenMPDeclareTargetContext()) {
+    if (!Actions.OpenMP().isInOpenMPDeclareTargetContext()) {
       Diag(Tok, diag::err_omp_unexpected_directive)
           << 1 << getOpenMPDirectiveName(DKind);
       break;
     }
-    const Sema::DeclareTargetContextInfo &DTCI =
-        Actions.ActOnOpenMPEndDeclareTargetDirective();
+    const SemaOpenMP::DeclareTargetContextInfo &DTCI =
+        Actions.OpenMP().ActOnOpenMPEndDeclareTargetDirective();
     ParseOMPEndDeclareTargetDirective(DTCI.Kind, DKind, DTCI.Loc);
     return nullptr;
   }
@@ -2683,7 +2694,7 @@ StmtResult Parser::ParseOpenMPDeclarativeOrExecutableDirective(
     if (!ParseOpenMPSimpleVarList(DKind, Helper,
                                   /*AllowScopeSpecifier=*/false)) {
       skipUntilPragmaOpenMPEnd(DKind);
-      DeclGroupPtrTy Res = Actions.ActOnOpenMPThreadprivateDirective(
+      DeclGroupPtrTy Res = Actions.OpenMP().ActOnOpenMPThreadprivateDirective(
           Loc, Helper.getIdentifiers());
       Directive = Actions.ActOnDeclStmt(Res, Loc, Tok.getLocation());
     }
@@ -2710,7 +2721,7 @@ StmtResult Parser::ParseOpenMPDeclarativeOrExecutableDirective(
           OpenMPClauseKind CKind =
               Tok.isAnnotation() ? OMPC_unknown
                                  : getOpenMPClauseKind(PP.getSpelling(Tok));
-          Actions.StartOpenMPClause(CKind);
+          Actions.OpenMP().StartOpenMPClause(CKind);
           OMPClause *Clause = ParseOpenMPClause(
               OMPD_allocate, CKind, !FirstClauses[unsigned(CKind)].getInt());
           SkipUntil(tok::comma, tok::identifier, tok::annot_pragma_openmp_end,
@@ -2719,17 +2730,17 @@ StmtResult Parser::ParseOpenMPDeclarativeOrExecutableDirective(
           if (Clause != nullptr)
             Clauses.push_back(Clause);
           if (Tok.is(tok::annot_pragma_openmp_end)) {
-            Actions.EndOpenMPClause();
+            Actions.OpenMP().EndOpenMPClause();
             break;
           }
           // Skip ',' if any.
           if (Tok.is(tok::comma))
             ConsumeToken();
-          Actions.EndOpenMPClause();
+          Actions.OpenMP().EndOpenMPClause();
         }
         skipUntilPragmaOpenMPEnd(DKind);
       }
-      DeclGroupPtrTy Res = Actions.ActOnOpenMPAllocateDirective(
+      DeclGroupPtrTy Res = Actions.OpenMP().ActOnOpenMPAllocateDirective(
           Loc, Helper.getIdentifiers(), Clauses);
       Directive = Actions.ActOnDeclStmt(Res, Loc, Tok.getLocation());
     }
@@ -2875,7 +2886,8 @@ StmtResult Parser::ParseOpenMPDeclarativeOrExecutableDirective(
     if (isOpenMPSimdDirective(DKind))
       ScopeFlags |= Scope::OpenMPSimdDirectiveScope;
     ParseScope OMPDirectiveScope(this, ScopeFlags);
-    Actions.StartOpenMPDSABlock(DKind, DirName, Actions.getCurScope(), Loc);
+    Actions.OpenMP().StartOpenMPDSABlock(DKind, DirName, Actions.getCurScope(),
+                                         Loc);
 
     while (Tok.isNot(tok::annot_pragma_openmp_end)) {
       // If we are parsing for a directive within a metadirective, the directive
@@ -2909,7 +2921,7 @@ StmtResult Parser::ParseOpenMPDeclarativeOrExecutableDirective(
       }
       // No more implicit clauses allowed.
       ImplicitClauseAllowed = false;
-      Actions.StartOpenMPClause(CKind);
+      Actions.OpenMP().StartOpenMPClause(CKind);
       HasImplicitClause = false;
       OMPClause *Clause = ParseOpenMPClause(
           DKind, CKind, !FirstClauses[unsigned(CKind)].getInt());
@@ -2922,7 +2934,7 @@ StmtResult Parser::ParseOpenMPDeclarativeOrExecutableDirective(
       // Skip ',' if any.
       if (Tok.is(tok::comma))
         ConsumeToken();
-      Actions.EndOpenMPClause();
+      Actions.OpenMP().EndOpenMPClause();
     }
     // End location of the directive.
     EndLoc = Tok.getLocation();
@@ -2953,7 +2965,7 @@ StmtResult Parser::ParseOpenMPDeclarativeOrExecutableDirective(
     StmtResult AssociatedStmt;
     if (HasAssociatedStatement) {
       // The body is a block scope like in Lambdas and Blocks.
-      Actions.ActOnOpenMPRegionStart(DKind, getCurScope());
+      Actions.OpenMP().ActOnOpenMPRegionStart(DKind, getCurScope());
       // FIXME: We create a bogus CompoundStmt scope to hold the contents of
       // the captured region. Code elsewhere assumes that any FunctionScopeInfo
       // should have at least one compound statement scope within it.
@@ -2964,30 +2976,33 @@ StmtResult Parser::ParseOpenMPDeclarativeOrExecutableDirective(
 
         if (AssociatedStmt.isUsable() && isOpenMPLoopDirective(DKind) &&
             getLangOpts().OpenMPIRBuilder)
-          AssociatedStmt = Actions.ActOnOpenMPLoopnest(AssociatedStmt.get());
+          AssociatedStmt =
+              Actions.OpenMP().ActOnOpenMPLoopnest(AssociatedStmt.get());
       }
-      AssociatedStmt = Actions.ActOnOpenMPRegionEnd(AssociatedStmt, Clauses);
+      AssociatedStmt =
+          Actions.OpenMP().ActOnOpenMPRegionEnd(AssociatedStmt, Clauses);
     } else if (DKind == OMPD_target_update || DKind == OMPD_target_enter_data ||
                DKind == OMPD_target_exit_data) {
-      Actions.ActOnOpenMPRegionStart(DKind, getCurScope());
+      Actions.OpenMP().ActOnOpenMPRegionStart(DKind, getCurScope());
       AssociatedStmt = (Sema::CompoundScopeRAII(Actions),
                         Actions.ActOnCompoundStmt(Loc, Loc, std::nullopt,
                                                   /*isStmtExpr=*/false));
-      AssociatedStmt = Actions.ActOnOpenMPRegionEnd(AssociatedStmt, Clauses);
+      AssociatedStmt =
+          Actions.OpenMP().ActOnOpenMPRegionEnd(AssociatedStmt, Clauses);
     }
-    Directive = Actions.ActOnOpenMPExecutableDirective(
+    Directive = Actions.OpenMP().ActOnOpenMPExecutableDirective(
         DKind, DirName, CancelRegion, Clauses, AssociatedStmt.get(), Loc,
         EndLoc);
 
     // Exit scope.
-    Actions.EndOpenMPDSABlock(Directive.get());
+    Actions.OpenMP().EndOpenMPDSABlock(Directive.get());
     OMPDirectiveScope.Exit();
     break;
   }
   case OMPD_declare_target: {
     SourceLocation DTLoc = ConsumeAnyToken();
     bool HasClauses = Tok.isNot(tok::annot_pragma_openmp_end);
-    Sema::DeclareTargetContextInfo DTCI(DKind, DTLoc);
+    SemaOpenMP::DeclareTargetContextInfo DTCI(DKind, DTLoc);
     if (HasClauses)
       ParseOMPDeclareTargetClauses(DTCI);
     bool HasImplicitMappings =
@@ -3003,7 +3018,7 @@ StmtResult Parser::ParseOpenMPDeclarativeOrExecutableDirective(
     // Skip the last annot_pragma_openmp_end.
     ConsumeAnyToken();
 
-    Actions.ActOnFinishedOpenMPDeclareTargetContext(DTCI);
+    Actions.OpenMP().ActOnFinishedOpenMPDeclareTargetContext(DTCI);
     break;
   }
   case OMPD_declare_simd:
@@ -3118,7 +3133,7 @@ OMPClause *Parser::ParseOpenMPSizesClause() {
 
   T.consumeClose();
 
-  return Actions.ActOnOpenMPSizesClause(
+  return Actions.OpenMP().ActOnOpenMPSizesClause(
       ValExprs, ClauseNameLoc, T.getOpenLocation(), T.getCloseLocation());
 }
 
@@ -3130,7 +3145,7 @@ OMPClause *Parser::ParseOpenMPUsesAllocatorClause(OpenMPDirectiveKind DKind) {
   BalancedDelimiterTracker T(*this, tok::l_paren, tok::annot_pragma_openmp_end);
   if (T.expectAndConsume(diag::err_expected_lparen_after, "uses_allocator"))
     return nullptr;
-  SmallVector<Sema::UsesAllocatorsData, 4> Data;
+  SmallVector<SemaOpenMP::UsesAllocatorsData, 4> Data;
   do {
     CXXScopeSpec SS;
     Token Replacement;
@@ -3144,7 +3159,7 @@ OMPClause *Parser::ParseOpenMPUsesAllocatorClause(OpenMPDirectiveKind DKind) {
                 StopBeforeMatch);
       break;
     }
-    Sema::UsesAllocatorsData &D = Data.emplace_back();
+    SemaOpenMP::UsesAllocatorsData &D = Data.emplace_back();
     D.Allocator = Allocator.get();
     if (Tok.is(tok::l_paren)) {
       BalancedDelimiterTracker T(*this, tok::l_paren,
@@ -3169,8 +3184,8 @@ OMPClause *Parser::ParseOpenMPUsesAllocatorClause(OpenMPDirectiveKind DKind) {
       ConsumeAnyToken();
   } while (Tok.isNot(tok::r_paren) && Tok.isNot(tok::annot_pragma_openmp_end));
   T.consumeClose();
-  return Actions.ActOnOpenMPUsesAllocatorClause(Loc, T.getOpenLocation(),
-                                                T.getCloseLocation(), Data);
+  return Actions.OpenMP().ActOnOpenMPUsesAllocatorClause(
+      Loc, T.getOpenLocation(), T.getCloseLocation(), Data);
 }
 
 /// Parsing of OpenMP clauses.
@@ -3538,15 +3553,16 @@ OMPClause *Parser::ParseOpenMPSingleExprClause(OpenMPClauseKind Kind,
 
   if (ParseOnly)
     return nullptr;
-  return Actions.ActOnOpenMPSingleExprClause(Kind, Val.get(), Loc, LLoc, RLoc);
+  return Actions.OpenMP().ActOnOpenMPSingleExprClause(Kind, Val.get(), Loc,
+                                                      LLoc, RLoc);
 }
 
 /// Parse indirect clause for '#pragma omp declare target' directive.
 ///  'indirect' '[' '(' invoked-by-fptr ')' ']'
 /// where invoked-by-fptr is a constant boolean expression that evaluates to
 /// true or false at compile time.
-bool Parser::ParseOpenMPIndirectClause(Sema::DeclareTargetContextInfo &DTCI,
-                                       bool ParseOnly) {
+bool Parser::ParseOpenMPIndirectClause(
+    SemaOpenMP::DeclareTargetContextInfo &DTCI, bool ParseOnly) {
   SourceLocation Loc = ConsumeToken();
   SourceLocation RLoc;
 
@@ -3721,15 +3737,16 @@ OMPClause *Parser::ParseOpenMPInteropClause(OpenMPClauseKind Kind,
     return nullptr;
 
   if (Kind == OMPC_init)
-    return Actions.ActOnOpenMPInitClause(InteropVarExpr.get(), InteropInfo, Loc,
-                                         T.getOpenLocation(), VarLoc, RLoc);
+    return Actions.OpenMP().ActOnOpenMPInitClause(
+        InteropVarExpr.get(), InteropInfo, Loc, T.getOpenLocation(), VarLoc,
+        RLoc);
   if (Kind == OMPC_use)
-    return Actions.ActOnOpenMPUseClause(InteropVarExpr.get(), Loc,
-                                        T.getOpenLocation(), VarLoc, RLoc);
+    return Actions.OpenMP().ActOnOpenMPUseClause(
+        InteropVarExpr.get(), Loc, T.getOpenLocation(), VarLoc, RLoc);
 
   if (Kind == OMPC_destroy)
-    return Actions.ActOnOpenMPDestroyClause(InteropVarExpr.get(), Loc,
-                                            T.getOpenLocation(), VarLoc, RLoc);
+    return Actions.OpenMP().ActOnOpenMPDestroyClause(
+        InteropVarExpr.get(), Loc, T.getOpenLocation(), VarLoc, RLoc);
 
   llvm_unreachable("Unexpected interop variable clause.");
 }
@@ -3787,8 +3804,8 @@ OMPClause *Parser::ParseOpenMPOMPXAttributesClause(bool ParseOnly) {
     };
   }
 
-  return Actions.ActOnOpenMPXAttributeClause(Attrs, Loc, T.getOpenLocation(),
-                                             T.getCloseLocation());
+  return Actions.OpenMP().ActOnOpenMPXAttributeClause(
+      Attrs, Loc, T.getOpenLocation(), T.getCloseLocation());
 }
 
 /// Parsing of simple OpenMP clauses like 'default' or 'proc_bind'.
@@ -3823,9 +3840,8 @@ OMPClause *Parser::ParseOpenMPSimpleClause(OpenMPClauseKind Kind,
         << getOpenMPClauseName(OMPC_default) << "5.1";
     return nullptr;
   }
-  return Actions.ActOnOpenMPSimpleClause(Kind, Val->Type,
-                                         Val->TypeLoc, Val->LOpen,
-                                         Val->Loc, Val->RLoc);
+  return Actions.OpenMP().ActOnOpenMPSimpleClause(
+      Kind, Val->Type, Val->TypeLoc, Val->LOpen, Val->Loc, Val->RLoc);
 }
 
 /// Parsing of OpenMP clauses like 'ordered'.
@@ -3860,7 +3876,7 @@ OMPClause *Parser::ParseOpenMPClause(OpenMPClauseKind Kind, bool ParseOnly) {
 
   if (ParseOnly)
     return nullptr;
-  return Actions.ActOnOpenMPClause(Kind, Loc, Tok.getLocation());
+  return Actions.OpenMP().ActOnOpenMPClause(Kind, Loc, Tok.getLocation());
 }
 
 /// Parsing of OpenMP clauses with single expressions and some additional
@@ -4118,7 +4134,7 @@ OMPClause *Parser::ParseOpenMPSingleExprWithArgClause(OpenMPDirectiveKind DKind,
 
   if (ParseOnly)
     return nullptr;
-  return Actions.ActOnOpenMPSingleExprWithArgClause(
+  return Actions.OpenMP().ActOnOpenMPSingleExprWithArgClause(
       Kind, Arg, Val.get(), Loc, T.getOpenLocation(), KLoc, DelimLoc, RLoc);
 }
 
@@ -4184,7 +4200,7 @@ static OpenMPMapModifierKind isMapModifier(Parser &P) {
 }
 
 /// Parse the mapper modifier in map, to, and from clauses.
-bool Parser::parseMapperModifier(Sema::OpenMPVarListDataTy &Data) {
+bool Parser::parseMapperModifier(SemaOpenMP::OpenMPVarListDataTy &Data) {
   // Parse '('.
   BalancedDelimiterTracker T(*this, tok::l_paren, tok::colon);
   if (T.expectAndConsume(diag::err_expected_lparen_after, "mapper")) {
@@ -4216,7 +4232,7 @@ bool Parser::parseMapperModifier(Sema::OpenMPVarListDataTy &Data) {
 /// map([ [map-type-modifier[,] [map-type-modifier[,] ...] map-type : ] list)
 /// where, map-type-modifier ::= always | close | mapper(mapper-identifier) |
 /// present
-bool Parser::parseMapTypeModifiers(Sema::OpenMPVarListDataTy &Data) {
+bool Parser::parseMapTypeModifiers(SemaOpenMP::OpenMPVarListDataTy &Data) {
   while (getCurToken().isNot(tok::colon)) {
     OpenMPMapModifierKind TypeModifier = isMapModifier(*this);
     if (TypeModifier == OMPC_MAP_MODIFIER_always ||
@@ -4282,7 +4298,7 @@ static OpenMPMapClauseKind isMapType(Parser &P) {
 /// Parse map-type in map clause.
 /// map([ [map-type-modifier[,] [map-type-modifier[,] ...] map-type : ] list)
 /// where, map-type ::= to | from | tofrom | alloc | release | delete
-static void parseMapType(Parser &P, Sema::OpenMPVarListDataTy &Data) {
+static void parseMapType(Parser &P, SemaOpenMP::OpenMPVarListDataTy &Data) {
   Token Tok = P.getCurToken();
   if (Tok.is(tok::colon)) {
     P.Diag(Tok, diag::err_omp_map_type_missing);
@@ -4306,7 +4322,7 @@ ExprResult Parser::ParseOpenMPIteratorsExpr() {
     return ExprError();
 
   SourceLocation LLoc = T.getOpenLocation();
-  SmallVector<Sema::OMPIteratorData, 4> Data;
+  SmallVector<SemaOpenMP::OMPIteratorData, 4> Data;
   while (Tok.isNot(tok::r_paren) && Tok.isNot(tok::annot_pragma_openmp_end)) {
     // Check if the type parsing is required.
     ParsedType IteratorType;
@@ -4380,7 +4396,7 @@ ExprResult Parser::ParseOpenMPIteratorsExpr() {
     if (Tok.is(tok::comma))
       ConsumeToken();
 
-    Sema::OMPIteratorData &D = Data.emplace_back();
+    SemaOpenMP::OMPIteratorData &D = Data.emplace_back();
     D.DeclIdent = II;
     D.DeclIdentLoc = IdLoc;
     D.Type = IteratorType;
@@ -4397,12 +4413,12 @@ ExprResult Parser::ParseOpenMPIteratorsExpr() {
   if (!T.consumeClose())
     RLoc = T.getCloseLocation();
 
-  return Actions.ActOnOMPIteratorExpr(getCurScope(), IteratorKwLoc, LLoc, RLoc,
-                                      Data);
+  return Actions.OpenMP().ActOnOMPIteratorExpr(getCurScope(), IteratorKwLoc,
+                                               LLoc, RLoc, Data);
 }
 
 bool Parser::ParseOpenMPReservedLocator(OpenMPClauseKind Kind,
-                                        Sema::OpenMPVarListDataTy &Data,
+                                        SemaOpenMP::OpenMPVarListDataTy &Data,
                                         const LangOptions &LangOpts) {
   // Currently the only reserved locator is 'omp_all_memory' which is only
   // allowed on a depend clause.
@@ -4430,7 +4446,7 @@ bool Parser::ParseOpenMPReservedLocator(OpenMPClauseKind Kind,
 
 /// Parse step size expression. Returns true if parsing is successfull,
 /// otherwise returns false.
-static bool parseStepSize(Parser &P, Sema::OpenMPVarListDataTy &Data,
+static bool parseStepSize(Parser &P, SemaOpenMP::OpenMPVarListDataTy &Data,
                           OpenMPClauseKind CKind, SourceLocation ELoc) {
   ExprResult Tail = P.ParseAssignmentExpression();
   Sema &Actions = P.getActions();
@@ -4451,7 +4467,7 @@ static bool parseStepSize(Parser &P, Sema::OpenMPVarListDataTy &Data,
 bool Parser::ParseOpenMPVarList(OpenMPDirectiveKind DKind,
                                 OpenMPClauseKind Kind,
                                 SmallVectorImpl<Expr *> &Vars,
-                                Sema::OpenMPVarListDataTy &Data) {
+                                SemaOpenMP::OpenMPVarListDataTy &Data) {
   UnqualifiedId UnqualifiedReductionId;
   bool InvalidReductionId = false;
   bool IsInvalidMapperModifier = false;
@@ -4961,7 +4977,7 @@ OMPClause *Parser::ParseOpenMPVarListClause(OpenMPDirectiveKind DKind,
   SourceLocation Loc = Tok.getLocation();
   SourceLocation LOpen = ConsumeToken();
   SmallVector<Expr *, 4> Vars;
-  Sema::OpenMPVarListDataTy Data;
+  SemaOpenMP::OpenMPVarListDataTy Data;
 
   if (ParseOpenMPVarList(DKind, Kind, Vars, Data))
     return nullptr;
@@ -4969,5 +4985,5 @@ OMPClause *Parser::ParseOpenMPVarListClause(OpenMPDirectiveKind DKind,
   if (ParseOnly)
     return nullptr;
   OMPVarListLocTy Locs(Loc, LOpen, Data.RLoc);
-  return Actions.ActOnOpenMPVarListClause(Kind, Vars, Locs, Data);
+  return Actions.OpenMP().ActOnOpenMPVarListClause(Kind, Vars, Locs, Data);
 }
diff --git a/clang/lib/Parse/ParseStmt.cpp b/clang/lib/Parse/ParseStmt.cpp
index 76a3fa8f2627..629421c01d17 100644
--- a/clang/lib/Parse/ParseStmt.cpp
+++ b/clang/lib/Parse/ParseStmt.cpp
@@ -22,6 +22,7 @@
 #include "clang/Sema/DeclSpec.h"
 #include "clang/Sema/EnterExpressionEvaluationContext.h"
 #include "clang/Sema/Scope.h"
+#include "clang/Sema/SemaOpenMP.h"
 #include "clang/Sema/TypoCorrection.h"
 #include "llvm/ADT/STLExtras.h"
 #include <optional>
@@ -2301,7 +2302,7 @@ StmtResult Parser::ParseForStatement(SourceLocation *TrailingElseLoc) {
     // In OpenMP loop region loop control variable must be captured and be
     // private. Perform analysis of first part (if any).
     if (getLangOpts().OpenMP && FirstPart.isUsable()) {
-      Actions.ActOnOpenMPLoopInitialization(ForLoc, FirstPart.get());
+      Actions.OpenMP().ActOnOpenMPLoopInitialization(ForLoc, FirstPart.get());
     }
   }
 
diff --git a/clang/lib/Sema/Sema.cpp b/clang/lib/Sema/Sema.cpp
index 8de202f4f7a0..a1e32d391ed0 100644
--- a/clang/lib/Sema/Sema.cpp
+++ b/clang/lib/Sema/Sema.cpp
@@ -46,6 +46,7 @@
 #include "clang/Sema/SemaHLSL.h"
 #include "clang/Sema/SemaInternal.h"
 #include "clang/Sema/SemaOpenACC.h"
+#include "clang/Sema/SemaOpenMP.h"
 #include "clang/Sema/SemaSYCL.h"
 #include "clang/Sema/TemplateDeduction.h"
 #include "clang/Sema/TemplateInstCallback.h"
@@ -203,6 +204,7 @@ Sema::Sema(Preprocessor &pp, ASTContext &ctxt, ASTConsumer &consumer,
       CUDAPtr(std::make_unique<SemaCUDA>(*this)),
       HLSLPtr(std::make_unique<SemaHLSL>(*this)),
       OpenACCPtr(std::make_unique<SemaOpenACC>(*this)),
+      OpenMPPtr(std::make_unique<SemaOpenMP>(*this)),
       SYCLPtr(std::make_unique<SemaSYCL>(*this)),
       MSPointerToMemberRepresentationMethod(
           LangOpts.getMSPointerToMemberRepresentationMethod()),
@@ -226,8 +228,7 @@ Sema::Sema(Preprocessor &pp, ASTContext &ctxt, ASTConsumer &consumer,
       StringWithUTF8StringMethod(nullptr),
       ValueWithBytesObjCTypeMethod(nullptr), NSArrayDecl(nullptr),
       ArrayWithObjectsMethod(nullptr), NSDictionaryDecl(nullptr),
-      DictionaryWithObjectsMethod(nullptr), CodeCompleter(CodeCompleter),
-      VarDataSharingAttributesStack(nullptr) {
+      DictionaryWithObjectsMethod(nullptr), CodeCompleter(CodeCompleter) {
   assert(pp.TUKind == TUKind);
   TUScope = nullptr;
 
@@ -252,7 +253,7 @@ Sema::Sema(Preprocessor &pp, ASTContext &ctxt, ASTConsumer &consumer,
       nullptr, ExpressionEvaluationContextRecord::EK_Other);
 
   // Initialization of data sharing attributes stack for OpenMP
-  InitDataSharingAttributesStack();
+  OpenMP().InitDataSharingAttributesStack();
 
   std::unique_ptr<sema::SemaPPCallbacks> Callbacks =
       std::make_unique<sema::SemaPPCallbacks>();
@@ -501,7 +502,7 @@ Sema::~Sema() {
   threadSafety::threadSafetyCleanup(ThreadSafetyDeclCache);
 
   // Destroys data sharing attributes stack for OpenMP
-  DestroyDataSharingAttributesStack();
+  OpenMP().DestroyDataSharingAttributesStack();
 
   // Detach from the PP callback handler which outlives Sema since it's owned
   // by the preprocessor.
@@ -1159,7 +1160,7 @@ void Sema::ActOnEndOfTranslationUnit() {
 
   DiagnoseUnterminatedPragmaAlignPack();
   DiagnoseUnterminatedPragmaAttribute();
-  DiagnoseUnterminatedOpenMPDeclareTarget();
+  OpenMP().DiagnoseUnterminatedOpenMPDeclareTarget();
 
   // All delayed member exception specs should be checked or we end up accepting
   // incompatible declarations.
@@ -1747,7 +1748,7 @@ public:
     // Finalize analysis of OpenMP-specific constructs.
     if (Caller && S.LangOpts.OpenMP && UsePath.size() == 1 &&
         (ShouldEmitRootNode || InOMPDeviceContext))
-      S.finalizeOpenMPDelayedAnalysis(Caller, FD, Loc);
+      S.OpenMP().finalizeOpenMPDelayedAnalysis(Caller, FD, Loc);
     if (Caller)
       S.CUDA().DeviceKnownEmittedFns[FD] = {Caller, Loc};
     // Always emit deferred diagnostics for the direct users. This does not
@@ -1899,8 +1900,8 @@ Sema::targetDiag(SourceLocation Loc, unsigned DiagID, const FunctionDecl *FD) {
   FD = FD ? FD : getCurFunctionDecl();
   if (LangOpts.OpenMP)
     return LangOpts.OpenMPIsTargetDevice
-               ? diagIfOpenMPDeviceCode(Loc, DiagID, FD)
-               : diagIfOpenMPHostCode(Loc, DiagID, FD);
+               ? OpenMP().diagIfOpenMPDeviceCode(Loc, DiagID, FD)
+               : OpenMP().diagIfOpenMPHostCode(Loc, DiagID, FD);
   if (getLangOpts().CUDA)
     return getLangOpts().CUDAIsDevice ? CUDA().DiagIfDeviceCode(Loc, DiagID)
                                       : CUDA().DiagIfHostCode(Loc, DiagID);
@@ -2131,7 +2132,7 @@ void Sema::PushFunctionScope() {
     FunctionScopes.push_back(new FunctionScopeInfo(getDiagnostics()));
   }
   if (LangOpts.OpenMP)
-    pushOpenMPFunctionRegion();
+    OpenMP().pushOpenMPFunctionRegion();
 }
 
 void Sema::PushBlockScope(Scope *BlockScope, BlockDecl *Block) {
@@ -2251,7 +2252,7 @@ Sema::PopFunctionScopeInfo(const AnalysisBasedWarnings::Policy *WP,
                                PoppedFunctionScopeDeleter(this));
 
   if (LangOpts.OpenMP)
-    popOpenMPFunctionRegion(Scope.get());
+    OpenMP().popOpenMPFunctionRegion(Scope.get());
 
   // Issue any analysis-based warnings.
   if (WP && D)
@@ -2687,7 +2688,9 @@ void Sema::PushCapturedRegionScope(Scope *S, CapturedDecl *CD, RecordDecl *RD,
                                    unsigned OpenMPCaptureLevel) {
   auto *CSI = new CapturedRegionScopeInfo(
       getDiagnostics(), S, CD, RD, CD->getContextParam(), K,
-      (getLangOpts().OpenMP && K == CR_OpenMP) ? getOpenMPNestingLevel() : 0,
+      (getLangOpts().OpenMP && K == CR_OpenMP)
+          ? OpenMP().getOpenMPNestingLevel()
+          : 0,
       OpenMPCaptureLevel);
   CSI->ReturnType = Context.VoidTy;
   FunctionScopes.push_back(CSI);
diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp
index 8b3b9d020db5..390da508518e 100644
--- a/clang/lib/Sema/SemaDecl.cpp
+++ b/clang/lib/Sema/SemaDecl.cpp
@@ -48,6 +48,7 @@
 #include "clang/Sema/SemaCUDA.h"
 #include "clang/Sema/SemaHLSL.h"
 #include "clang/Sema/SemaInternal.h"
+#include "clang/Sema/SemaOpenMP.h"
 #include "clang/Sema/Template.h"
 #include "llvm/ADT/STLForwardCompat.h"
 #include "llvm/ADT/SmallString.h"
@@ -6168,11 +6169,12 @@ Decl *Sema::ActOnDeclarator(Scope *S, Declarator &D) {
   // Check if we are in an `omp begin/end declare variant` scope. Handle this
   // declaration only if the `bind_to_declaration` extension is set.
   SmallVector<FunctionDecl *, 4> Bases;
-  if (LangOpts.OpenMP && isInOpenMPDeclareVariantScope())
-    if (getOMPTraitInfoForSurroundingScope()->isExtensionActive(llvm::omp::TraitProperty::
-              implementation_extension_bind_to_declaration))
-    ActOnStartOfFunctionDefinitionInOpenMPDeclareVariantScope(
-        S, D, MultiTemplateParamsArg(), Bases);
+  if (LangOpts.OpenMP && OpenMP().isInOpenMPDeclareVariantScope())
+    if (OpenMP().getOMPTraitInfoForSurroundingScope()->isExtensionActive(
+            llvm::omp::TraitProperty::
+                implementation_extension_bind_to_declaration))
+      OpenMP().ActOnStartOfFunctionDefinitionInOpenMPDeclareVariantScope(
+          S, D, MultiTemplateParamsArg(), Bases);
 
   Decl *Dcl = HandleDeclarator(S, D, MultiTemplateParamsArg());
 
@@ -6181,7 +6183,8 @@ Decl *Sema::ActOnDeclarator(Scope *S, Declarator &D) {
     Dcl->setTopLevelDeclInObjCContainer();
 
   if (!Bases.empty())
-    ActOnFinishedFunctionDefinitionInOpenMPDeclareVariantScope(Dcl, Bases);
+    OpenMP().ActOnFinishedFunctionDefinitionInOpenMPDeclareVariantScope(Dcl,
+                                                                        Bases);
 
   return Dcl;
 }
@@ -6568,8 +6571,8 @@ NamedDecl *Sema::HandleDeclarator(Scope *S, Declarator &D,
   if (New->getDeclName() && AddToScope)
     PushOnScopeChains(New, S);
 
-  if (isInOpenMPDeclareTargetContext())
-    checkDeclIsAllowedInOpenMPTarget(nullptr, New);
+  if (OpenMP().isInOpenMPDeclareTargetContext())
+    OpenMP().checkDeclIsAllowedInOpenMPTarget(nullptr, New);
 
   return New;
 }
@@ -12268,7 +12271,7 @@ bool Sema::CheckFunctionDeclaration(Scope *S, FunctionDecl *NewFD,
   }
 
   if (LangOpts.OpenMP)
-    ActOnFinishedFunctionDefinitionInOpenMPAssumeScope(NewFD);
+    OpenMP().ActOnFinishedFunctionDefinitionInOpenMPAssumeScope(NewFD);
 
   // Semantic checking for this function declaration (in isolation).
 
@@ -14956,7 +14959,7 @@ Sema::DeclGroupPtrTy Sema::FinalizeDeclaratorGroup(Scope *S, const DeclSpec &DS,
       if (auto *VD = dyn_cast<VarDecl>(D);
           LangOpts.OpenMP && VD && VD->hasAttr<OMPDeclareTargetDeclAttr>() &&
           VD->hasGlobalStorage())
-        ActOnOpenMPDeclareTargetInitializer(D);
+        OpenMP().ActOnOpenMPDeclareTargetInitializer(D);
       // For declarators, there are some additional syntactic-ish checks we need
       // to perform.
       if (auto *DD = dyn_cast<DeclaratorDecl>(D)) {
@@ -15495,8 +15498,8 @@ Sema::ActOnStartOfFunctionDef(Scope *FnBodyScope, Declarator &D,
   // specialization function under the OpenMP context defined as part of the
   // `omp begin declare variant`.
   SmallVector<FunctionDecl *, 4> Bases;
-  if (LangOpts.OpenMP && isInOpenMPDeclareVariantScope())
-    ActOnStartOfFunctionDefinitionInOpenMPDeclareVariantScope(
+  if (LangOpts.OpenMP && OpenMP().isInOpenMPDeclareVariantScope())
+    OpenMP().ActOnStartOfFunctionDefinitionInOpenMPDeclareVariantScope(
         ParentScope, D, TemplateParameterLists, Bases);
 
   D.setFunctionDefinitionKind(FunctionDefinitionKind::Definition);
@@ -15504,7 +15507,8 @@ Sema::ActOnStartOfFunctionDef(Scope *FnBodyScope, Declarator &D,
   Decl *Dcl = ActOnStartOfFunctionDef(FnBodyScope, DP, SkipBody, BodyKind);
 
   if (!Bases.empty())
-    ActOnFinishedFunctionDefinitionInOpenMPDeclareVariantScope(Dcl, Bases);
+    OpenMP().ActOnFinishedFunctionDefinitionInOpenMPDeclareVariantScope(Dcl,
+                                                                        Bases);
 
   return Dcl;
 }
@@ -20651,7 +20655,7 @@ Sema::FunctionEmissionStatus Sema::getEmissionStatus(const FunctionDecl *FD,
         return FunctionEmissionStatus::OMPDiscarded;
     // If we have an explicit value for the device type, or we are in a target
     // declare context, we need to emit all extern and used symbols.
-    if (isInOpenMPDeclareTargetContext() || DevTy)
+    if (OpenMP().isInOpenMPDeclareTargetContext() || DevTy)
       if (IsEmittedForExternalSymbol())
         return FunctionEmissionStatus::Emitted;
     // Device mode only emits what it must, if it wasn't tagged yet and needed,
diff --git a/clang/lib/Sema/SemaDeclCXX.cpp b/clang/lib/Sema/SemaDeclCXX.cpp
index 7669171fea56..8c6bae545bfd 100644
--- a/clang/lib/Sema/SemaDeclCXX.cpp
+++ b/clang/lib/Sema/SemaDeclCXX.cpp
@@ -44,6 +44,7 @@
 #include "clang/Sema/ScopeInfo.h"
 #include "clang/Sema/SemaCUDA.h"
 #include "clang/Sema/SemaInternal.h"
+#include "clang/Sema/SemaOpenMP.h"
 #include "clang/Sema/Template.h"
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/STLExtras.h"
@@ -962,8 +963,8 @@ Sema::ActOnDecompositionDeclarator(Scope *S, Declarator &D,
     CurContext->addHiddenDecl(New);
   }
 
-  if (isInOpenMPDeclareTargetContext())
-    checkDeclIsAllowedInOpenMPTarget(nullptr, New);
+  if (OpenMP().isInOpenMPDeclareTargetContext())
+    OpenMP().checkDeclIsAllowedInOpenMPTarget(nullptr, New);
 
   return New;
 }
@@ -18654,8 +18655,8 @@ void Sema::MarkVTableUsed(SourceLocation Loc, CXXRecordDecl *Class,
   // Do not mark as used if compiling for the device outside of the target
   // region.
   if (TUKind != TU_Prefix && LangOpts.OpenMP && LangOpts.OpenMPIsTargetDevice &&
-      !isInOpenMPDeclareTargetContext() &&
-      !isInOpenMPTargetExecutionDirective()) {
+      !OpenMP().isInOpenMPDeclareTargetContext() &&
+      !OpenMP().isInOpenMPTargetExecutionDirective()) {
     if (!DefinitionRequired)
       MarkVirtualMembersReferenced(Loc, Class);
     return;
diff --git a/clang/lib/Sema/SemaExpr.cpp b/clang/lib/Sema/SemaExpr.cpp
index 189764cb4b6b..cabffa47c931 100644
--- a/clang/lib/Sema/SemaExpr.cpp
+++ b/clang/lib/Sema/SemaExpr.cpp
@@ -52,6 +52,7 @@
 #include "clang/Sema/SemaCUDA.h"
 #include "clang/Sema/SemaFixItUtils.h"
 #include "clang/Sema/SemaInternal.h"
+#include "clang/Sema/SemaOpenMP.h"
 #include "clang/Sema/Template.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/STLForwardCompat.h"
@@ -360,9 +361,9 @@ bool Sema::DiagnoseUseOfDecl(NamedDecl *D, ArrayRef<SourceLocation> Locs,
   //  at the same location.
   // [OpenMP 5.2] Also allow iterator declared variables.
   if (LangOpts.OpenMP && isa<VarDecl>(D) &&
-      !isOpenMPDeclareMapperVarDeclAllowed(cast<VarDecl>(D))) {
+      !OpenMP().isOpenMPDeclareMapperVarDeclAllowed(cast<VarDecl>(D))) {
     Diag(Loc, diag::err_omp_declare_mapper_wrong_var)
-        << getOpenMPDeclareMapperVarName();
+        << OpenMP().getOpenMPDeclareMapperVarName();
     Diag(D->getLocation(), diag::note_entity_declared_at) << D;
     return true;
   }
@@ -2267,7 +2268,7 @@ NonOdrUseReason Sema::getNonOdrUseReasonInCurrentContext(ValueDecl *D) {
   //   be loaded from the captured.
   if (VarDecl *VD = dyn_cast<VarDecl>(D)) {
     if (VD->getType()->isReferenceType() &&
-        !(getLangOpts().OpenMP && isOpenMPCapturedDecl(D)) &&
+        !(getLangOpts().OpenMP && OpenMP().isOpenMPCapturedDecl(D)) &&
         !isCapturingReferenceToHostVarInCUDADeviceLambda(*this, VD) &&
         VD->isUsableInConstantExpressions(Context))
       return NOUR_Constant;
@@ -5080,9 +5081,10 @@ ExprResult Sema::ActOnArraySubscriptExpr(Scope *S, Expr *base,
 
   if (base && !base->getType().isNull() &&
       base->hasPlaceholderType(BuiltinType::OMPArraySection))
-    return ActOnOMPArraySectionExpr(base, lbLoc, ArgExprs.front(), SourceLocation(),
-                                    SourceLocation(), /*Length*/ nullptr,
-                                    /*Stride=*/nullptr, rbLoc);
+    return OpenMP().ActOnOMPArraySectionExpr(base, lbLoc, ArgExprs.front(),
+                                             SourceLocation(), SourceLocation(),
+                                             /*Length*/ nullptr,
+                                             /*Stride=*/nullptr, rbLoc);
 
   // Since this might be a postfix expression, get rid of ParenListExprs.
   if (isa<ParenListExpr>(base)) {
@@ -5354,558 +5356,6 @@ void Sema::CheckSubscriptAccessOfNoDeref(const ArraySubscriptExpr *E) {
   }
 }
 
-ExprResult Sema::ActOnOMPArraySectionExpr(Expr *Base, SourceLocation LBLoc,
-                                          Expr *LowerBound,
-                                          SourceLocation ColonLocFirst,
-                                          SourceLocation ColonLocSecond,
-                                          Expr *Length, Expr *Stride,
-                                          SourceLocation RBLoc) {
-  if (Base->hasPlaceholderType() &&
-      !Base->hasPlaceholderType(BuiltinType::OMPArraySection)) {
-    ExprResult Result = CheckPlaceholderExpr(Base);
-    if (Result.isInvalid())
-      return ExprError();
-    Base = Result.get();
-  }
-  if (LowerBound && LowerBound->getType()->isNonOverloadPlaceholderType()) {
-    ExprResult Result = CheckPlaceholderExpr(LowerBound);
-    if (Result.isInvalid())
-      return ExprError();
-    Result = DefaultLvalueConversion(Result.get());
-    if (Result.isInvalid())
-      return ExprError();
-    LowerBound = Result.get();
-  }
-  if (Length && Length->getType()->isNonOverloadPlaceholderType()) {
-    ExprResult Result = CheckPlaceholderExpr(Length);
-    if (Result.isInvalid())
-      return ExprError();
-    Result = DefaultLvalueConversion(Result.get());
-    if (Result.isInvalid())
-      return ExprError();
-    Length = Result.get();
-  }
-  if (Stride && Stride->getType()->isNonOverloadPlaceholderType()) {
-    ExprResult Result = CheckPlaceholderExpr(Stride);
-    if (Result.isInvalid())
-      return ExprError();
-    Result = DefaultLvalueConversion(Result.get());
-    if (Result.isInvalid())
-      return ExprError();
-    Stride = Result.get();
-  }
-
-  // Build an unanalyzed expression if either operand is type-dependent.
-  if (Base->isTypeDependent() ||
-      (LowerBound &&
-       (LowerBound->isTypeDependent() || LowerBound->isValueDependent())) ||
-      (Length && (Length->isTypeDependent() || Length->isValueDependent())) ||
-      (Stride && (Stride->isTypeDependent() || Stride->isValueDependent()))) {
-    return new (Context) OMPArraySectionExpr(
-        Base, LowerBound, Length, Stride, Context.DependentTy, VK_LValue,
-        OK_Ordinary, ColonLocFirst, ColonLocSecond, RBLoc);
-  }
-
-  // Perform default conversions.
-  QualType OriginalTy = OMPArraySectionExpr::getBaseOriginalType(Base);
-  QualType ResultTy;
-  if (OriginalTy->isAnyPointerType()) {
-    ResultTy = OriginalTy->getPointeeType();
-  } else if (OriginalTy->isArrayType()) {
-    ResultTy = OriginalTy->getAsArrayTypeUnsafe()->getElementType();
-  } else {
-    return ExprError(
-        Diag(Base->getExprLoc(), diag::err_omp_typecheck_section_value)
-        << Base->getSourceRange());
-  }
-  // C99 6.5.2.1p1
-  if (LowerBound) {
-    auto Res = PerformOpenMPImplicitIntegerConversion(LowerBound->getExprLoc(),
-                                                      LowerBound);
-    if (Res.isInvalid())
-      return ExprError(Diag(LowerBound->getExprLoc(),
-                            diag::err_omp_typecheck_section_not_integer)
-                       << 0 << LowerBound->getSourceRange());
-    LowerBound = Res.get();
-
-    if (LowerBound->getType()->isSpecificBuiltinType(BuiltinType::Char_S) ||
-        LowerBound->getType()->isSpecificBuiltinType(BuiltinType::Char_U))
-      Diag(LowerBound->getExprLoc(), diag::warn_omp_section_is_char)
-          << 0 << LowerBound->getSourceRange();
-  }
-  if (Length) {
-    auto Res =
-        PerformOpenMPImplicitIntegerConversion(Length->getExprLoc(), Length);
-    if (Res.isInvalid())
-      return ExprError(Diag(Length->getExprLoc(),
-                            diag::err_omp_typecheck_section_not_integer)
-                       << 1 << Length->getSourceRange());
-    Length = Res.get();
-
-    if (Length->getType()->isSpecificBuiltinType(BuiltinType::Char_S) ||
-        Length->getType()->isSpecificBuiltinType(BuiltinType::Char_U))
-      Diag(Length->getExprLoc(), diag::warn_omp_section_is_char)
-          << 1 << Length->getSourceRange();
-  }
-  if (Stride) {
-    ExprResult Res =
-        PerformOpenMPImplicitIntegerConversion(Stride->getExprLoc(), Stride);
-    if (Res.isInvalid())
-      return ExprError(Diag(Stride->getExprLoc(),
-                            diag::err_omp_typecheck_section_not_integer)
-                       << 1 << Stride->getSourceRange());
-    Stride = Res.get();
-
-    if (Stride->getType()->isSpecificBuiltinType(BuiltinType::Char_S) ||
-        Stride->getType()->isSpecificBuiltinType(BuiltinType::Char_U))
-      Diag(Stride->getExprLoc(), diag::warn_omp_section_is_char)
-          << 1 << Stride->getSourceRange();
-  }
-
-  // C99 6.5.2.1p1: "shall have type "pointer to *object* type". Similarly,
-  // C++ [expr.sub]p1: The type "T" shall be a completely-defined object
-  // type. Note that functions are not objects, and that (in C99 parlance)
-  // incomplete types are not object types.
-  if (ResultTy->isFunctionType()) {
-    Diag(Base->getExprLoc(), diag::err_omp_section_function_type)
-        << ResultTy << Base->getSourceRange();
-    return ExprError();
-  }
-
-  if (RequireCompleteType(Base->getExprLoc(), ResultTy,
-                          diag::err_omp_section_incomplete_type, Base))
-    return ExprError();
-
-  if (LowerBound && !OriginalTy->isAnyPointerType()) {
-    Expr::EvalResult Result;
-    if (LowerBound->EvaluateAsInt(Result, Context)) {
-      // OpenMP 5.0, [2.1.5 Array Sections]
-      // The array section must be a subset of the original array.
-      llvm::APSInt LowerBoundValue = Result.Val.getInt();
-      if (LowerBoundValue.isNegative()) {
-        Diag(LowerBound->getExprLoc(), diag::err_omp_section_not_subset_of_array)
-            << LowerBound->getSourceRange();
-        return ExprError();
-      }
-    }
-  }
-
-  if (Length) {
-    Expr::EvalResult Result;
-    if (Length->EvaluateAsInt(Result, Context)) {
-      // OpenMP 5.0, [2.1.5 Array Sections]
-      // The length must evaluate to non-negative integers.
-      llvm::APSInt LengthValue = Result.Val.getInt();
-      if (LengthValue.isNegative()) {
-        Diag(Length->getExprLoc(), diag::err_omp_section_length_negative)
-            << toString(LengthValue, /*Radix=*/10, /*Signed=*/true)
-            << Length->getSourceRange();
-        return ExprError();
-      }
-    }
-  } else if (ColonLocFirst.isValid() &&
-             (OriginalTy.isNull() || (!OriginalTy->isConstantArrayType() &&
-                                      !OriginalTy->isVariableArrayType()))) {
-    // OpenMP 5.0, [2.1.5 Array Sections]
-    // When the size of the array dimension is not known, the length must be
-    // specified explicitly.
-    Diag(ColonLocFirst, diag::err_omp_section_length_undefined)
-        << (!OriginalTy.isNull() && OriginalTy->isArrayType());
-    return ExprError();
-  }
-
-  if (Stride) {
-    Expr::EvalResult Result;
-    if (Stride->EvaluateAsInt(Result, Context)) {
-      // OpenMP 5.0, [2.1.5 Array Sections]
-      // The stride must evaluate to a positive integer.
-      llvm::APSInt StrideValue = Result.Val.getInt();
-      if (!StrideValue.isStrictlyPositive()) {
-        Diag(Stride->getExprLoc(), diag::err_omp_section_stride_non_positive)
-            << toString(StrideValue, /*Radix=*/10, /*Signed=*/true)
-            << Stride->getSourceRange();
-        return ExprError();
-      }
-    }
-  }
-
-  if (!Base->hasPlaceholderType(BuiltinType::OMPArraySection)) {
-    ExprResult Result = DefaultFunctionArrayLvalueConversion(Base);
-    if (Result.isInvalid())
-      return ExprError();
-    Base = Result.get();
-  }
-  return new (Context) OMPArraySectionExpr(
-      Base, LowerBound, Length, Stride, Context.OMPArraySectionTy, VK_LValue,
-      OK_Ordinary, ColonLocFirst, ColonLocSecond, RBLoc);
-}
-
-ExprResult Sema::ActOnOMPArrayShapingExpr(Expr *Base, SourceLocation LParenLoc,
-                                          SourceLocation RParenLoc,
-                                          ArrayRef<Expr *> Dims,
-                                          ArrayRef<SourceRange> Brackets) {
-  if (Base->hasPlaceholderType()) {
-    ExprResult Result = CheckPlaceholderExpr(Base);
-    if (Result.isInvalid())
-      return ExprError();
-    Result = DefaultLvalueConversion(Result.get());
-    if (Result.isInvalid())
-      return ExprError();
-    Base = Result.get();
-  }
-  QualType BaseTy = Base->getType();
-  // Delay analysis of the types/expressions if instantiation/specialization is
-  // required.
-  if (!BaseTy->isPointerType() && Base->isTypeDependent())
-    return OMPArrayShapingExpr::Create(Context, Context.DependentTy, Base,
-                                       LParenLoc, RParenLoc, Dims, Brackets);
-  if (!BaseTy->isPointerType() ||
-      (!Base->isTypeDependent() &&
-       BaseTy->getPointeeType()->isIncompleteType()))
-    return ExprError(Diag(Base->getExprLoc(),
-                          diag::err_omp_non_pointer_type_array_shaping_base)
-                     << Base->getSourceRange());
-
-  SmallVector<Expr *, 4> NewDims;
-  bool ErrorFound = false;
-  for (Expr *Dim : Dims) {
-    if (Dim->hasPlaceholderType()) {
-      ExprResult Result = CheckPlaceholderExpr(Dim);
-      if (Result.isInvalid()) {
-        ErrorFound = true;
-        continue;
-      }
-      Result = DefaultLvalueConversion(Result.get());
-      if (Result.isInvalid()) {
-        ErrorFound = true;
-        continue;
-      }
-      Dim = Result.get();
-    }
-    if (!Dim->isTypeDependent()) {
-      ExprResult Result =
-          PerformOpenMPImplicitIntegerConversion(Dim->getExprLoc(), Dim);
-      if (Result.isInvalid()) {
-        ErrorFound = true;
-        Diag(Dim->getExprLoc(), diag::err_omp_typecheck_shaping_not_integer)
-            << Dim->getSourceRange();
-        continue;
-      }
-      Dim = Result.get();
-      Expr::EvalResult EvResult;
-      if (!Dim->isValueDependent() && Dim->EvaluateAsInt(EvResult, Context)) {
-        // OpenMP 5.0, [2.1.4 Array Shaping]
-        // Each si is an integral type expression that must evaluate to a
-        // positive integer.
-        llvm::APSInt Value = EvResult.Val.getInt();
-        if (!Value.isStrictlyPositive()) {
-          Diag(Dim->getExprLoc(), diag::err_omp_shaping_dimension_not_positive)
-              << toString(Value, /*Radix=*/10, /*Signed=*/true)
-              << Dim->getSourceRange();
-          ErrorFound = true;
-          continue;
-        }
-      }
-    }
-    NewDims.push_back(Dim);
-  }
-  if (ErrorFound)
-    return ExprError();
-  return OMPArrayShapingExpr::Create(Context, Context.OMPArrayShapingTy, Base,
-                                     LParenLoc, RParenLoc, NewDims, Brackets);
-}
-
-ExprResult Sema::ActOnOMPIteratorExpr(Scope *S, SourceLocation IteratorKwLoc,
-                                      SourceLocation LLoc, SourceLocation RLoc,
-                                      ArrayRef<OMPIteratorData> Data) {
-  SmallVector<OMPIteratorExpr::IteratorDefinition, 4> ID;
-  bool IsCorrect = true;
-  for (const OMPIteratorData &D : Data) {
-    TypeSourceInfo *TInfo = nullptr;
-    SourceLocation StartLoc;
-    QualType DeclTy;
-    if (!D.Type.getAsOpaquePtr()) {
-      // OpenMP 5.0, 2.1.6 Iterators
-      // In an iterator-specifier, if the iterator-type is not specified then
-      // the type of that iterator is of int type.
-      DeclTy = Context.IntTy;
-      StartLoc = D.DeclIdentLoc;
-    } else {
-      DeclTy = GetTypeFromParser(D.Type, &TInfo);
-      StartLoc = TInfo->getTypeLoc().getBeginLoc();
-    }
-
-    bool IsDeclTyDependent = DeclTy->isDependentType() ||
-                             DeclTy->containsUnexpandedParameterPack() ||
-                             DeclTy->isInstantiationDependentType();
-    if (!IsDeclTyDependent) {
-      if (!DeclTy->isIntegralType(Context) && !DeclTy->isAnyPointerType()) {
-        // OpenMP 5.0, 2.1.6 Iterators, Restrictions, C/C++
-        // The iterator-type must be an integral or pointer type.
-        Diag(StartLoc, diag::err_omp_iterator_not_integral_or_pointer)
-            << DeclTy;
-        IsCorrect = false;
-        continue;
-      }
-      if (DeclTy.isConstant(Context)) {
-        // OpenMP 5.0, 2.1.6 Iterators, Restrictions, C/C++
-        // The iterator-type must not be const qualified.
-        Diag(StartLoc, diag::err_omp_iterator_not_integral_or_pointer)
-            << DeclTy;
-        IsCorrect = false;
-        continue;
-      }
-    }
-
-    // Iterator declaration.
-    assert(D.DeclIdent && "Identifier expected.");
-    // Always try to create iterator declarator to avoid extra error messages
-    // about unknown declarations use.
-    auto *VD = VarDecl::Create(Context, CurContext, StartLoc, D.DeclIdentLoc,
-                               D.DeclIdent, DeclTy, TInfo, SC_None);
-    VD->setImplicit();
-    if (S) {
-      // Check for conflicting previous declaration.
-      DeclarationNameInfo NameInfo(VD->getDeclName(), D.DeclIdentLoc);
-      LookupResult Previous(*this, NameInfo, LookupOrdinaryName,
-                            ForVisibleRedeclaration);
-      Previous.suppressDiagnostics();
-      LookupName(Previous, S);
-
-      FilterLookupForScope(Previous, CurContext, S, /*ConsiderLinkage=*/false,
-                           /*AllowInlineNamespace=*/false);
-      if (!Previous.empty()) {
-        NamedDecl *Old = Previous.getRepresentativeDecl();
-        Diag(D.DeclIdentLoc, diag::err_redefinition) << VD->getDeclName();
-        Diag(Old->getLocation(), diag::note_previous_definition);
-      } else {
-        PushOnScopeChains(VD, S);
-      }
-    } else {
-      CurContext->addDecl(VD);
-    }
-
-    /// Act on the iterator variable declaration.
-    ActOnOpenMPIteratorVarDecl(VD);
-
-    Expr *Begin = D.Range.Begin;
-    if (!IsDeclTyDependent && Begin && !Begin->isTypeDependent()) {
-      ExprResult BeginRes =
-          PerformImplicitConversion(Begin, DeclTy, AA_Converting);
-      Begin = BeginRes.get();
-    }
-    Expr *End = D.Range.End;
-    if (!IsDeclTyDependent && End && !End->isTypeDependent()) {
-      ExprResult EndRes = PerformImplicitConversion(End, DeclTy, AA_Converting);
-      End = EndRes.get();
-    }
-    Expr *Step = D.Range.Step;
-    if (!IsDeclTyDependent && Step && !Step->isTypeDependent()) {
-      if (!Step->getType()->isIntegralType(Context)) {
-        Diag(Step->getExprLoc(), diag::err_omp_iterator_step_not_integral)
-            << Step << Step->getSourceRange();
-        IsCorrect = false;
-        continue;
-      }
-      std::optional<llvm::APSInt> Result =
-          Step->getIntegerConstantExpr(Context);
-      // OpenMP 5.0, 2.1.6 Iterators, Restrictions
-      // If the step expression of a range-specification equals zero, the
-      // behavior is unspecified.
-      if (Result && Result->isZero()) {
-        Diag(Step->getExprLoc(), diag::err_omp_iterator_step_constant_zero)
-            << Step << Step->getSourceRange();
-        IsCorrect = false;
-        continue;
-      }
-    }
-    if (!Begin || !End || !IsCorrect) {
-      IsCorrect = false;
-      continue;
-    }
-    OMPIteratorExpr::IteratorDefinition &IDElem = ID.emplace_back();
-    IDElem.IteratorDecl = VD;
-    IDElem.AssignmentLoc = D.AssignLoc;
-    IDElem.Range.Begin = Begin;
-    IDElem.Range.End = End;
-    IDElem.Range.Step = Step;
-    IDElem.ColonLoc = D.ColonLoc;
-    IDElem.SecondColonLoc = D.SecColonLoc;
-  }
-  if (!IsCorrect) {
-    // Invalidate all created iterator declarations if error is found.
-    for (const OMPIteratorExpr::IteratorDefinition &D : ID) {
-      if (Decl *ID = D.IteratorDecl)
-        ID->setInvalidDecl();
-    }
-    return ExprError();
-  }
-  SmallVector<OMPIteratorHelperData, 4> Helpers;
-  if (!CurContext->isDependentContext()) {
-    // Build number of ityeration for each iteration range.
-    // Ni = ((Stepi > 0) ? ((Endi + Stepi -1 - Begini)/Stepi) :
-    // ((Begini-Stepi-1-Endi) / -Stepi);
-    for (OMPIteratorExpr::IteratorDefinition &D : ID) {
-      // (Endi - Begini)
-      ExprResult Res = CreateBuiltinBinOp(D.AssignmentLoc, BO_Sub, D.Range.End,
-                                          D.Range.Begin);
-      if(!Res.isUsable()) {
-        IsCorrect = false;
-        continue;
-      }
-      ExprResult St, St1;
-      if (D.Range.Step) {
-        St = D.Range.Step;
-        // (Endi - Begini) + Stepi
-        Res = CreateBuiltinBinOp(D.AssignmentLoc, BO_Add, Res.get(), St.get());
-        if (!Res.isUsable()) {
-          IsCorrect = false;
-          continue;
-        }
-        // (Endi - Begini) + Stepi - 1
-        Res =
-            CreateBuiltinBinOp(D.AssignmentLoc, BO_Sub, Res.get(),
-                               ActOnIntegerConstant(D.AssignmentLoc, 1).get());
-        if (!Res.isUsable()) {
-          IsCorrect = false;
-          continue;
-        }
-        // ((Endi - Begini) + Stepi - 1) / Stepi
-        Res = CreateBuiltinBinOp(D.AssignmentLoc, BO_Div, Res.get(), St.get());
-        if (!Res.isUsable()) {
-          IsCorrect = false;
-          continue;
-        }
-        St1 = CreateBuiltinUnaryOp(D.AssignmentLoc, UO_Minus, D.Range.Step);
-        // (Begini - Endi)
-        ExprResult Res1 = CreateBuiltinBinOp(D.AssignmentLoc, BO_Sub,
-                                             D.Range.Begin, D.Range.End);
-        if (!Res1.isUsable()) {
-          IsCorrect = false;
-          continue;
-        }
-        // (Begini - Endi) - Stepi
-        Res1 =
-            CreateBuiltinBinOp(D.AssignmentLoc, BO_Add, Res1.get(), St1.get());
-        if (!Res1.isUsable()) {
-          IsCorrect = false;
-          continue;
-        }
-        // (Begini - Endi) - Stepi - 1
-        Res1 =
-            CreateBuiltinBinOp(D.AssignmentLoc, BO_Sub, Res1.get(),
-                               ActOnIntegerConstant(D.AssignmentLoc, 1).get());
-        if (!Res1.isUsable()) {
-          IsCorrect = false;
-          continue;
-        }
-        // ((Begini - Endi) - Stepi - 1) / (-Stepi)
-        Res1 =
-            CreateBuiltinBinOp(D.AssignmentLoc, BO_Div, Res1.get(), St1.get());
-        if (!Res1.isUsable()) {
-          IsCorrect = false;
-          continue;
-        }
-        // Stepi > 0.
-        ExprResult CmpRes =
-            CreateBuiltinBinOp(D.AssignmentLoc, BO_GT, D.Range.Step,
-                               ActOnIntegerConstant(D.AssignmentLoc, 0).get());
-        if (!CmpRes.isUsable()) {
-          IsCorrect = false;
-          continue;
-        }
-        Res = ActOnConditionalOp(D.AssignmentLoc, D.AssignmentLoc, CmpRes.get(),
-                                 Res.get(), Res1.get());
-        if (!Res.isUsable()) {
-          IsCorrect = false;
-          continue;
-        }
-      }
-      Res = ActOnFinishFullExpr(Res.get(), /*DiscardedValue=*/false);
-      if (!Res.isUsable()) {
-        IsCorrect = false;
-        continue;
-      }
-
-      // Build counter update.
-      // Build counter.
-      auto *CounterVD =
-          VarDecl::Create(Context, CurContext, D.IteratorDecl->getBeginLoc(),
-                          D.IteratorDecl->getBeginLoc(), nullptr,
-                          Res.get()->getType(), nullptr, SC_None);
-      CounterVD->setImplicit();
-      ExprResult RefRes =
-          BuildDeclRefExpr(CounterVD, CounterVD->getType(), VK_LValue,
-                           D.IteratorDecl->getBeginLoc());
-      // Build counter update.
-      // I = Begini + counter * Stepi;
-      ExprResult UpdateRes;
-      if (D.Range.Step) {
-        UpdateRes = CreateBuiltinBinOp(
-            D.AssignmentLoc, BO_Mul,
-            DefaultLvalueConversion(RefRes.get()).get(), St.get());
-      } else {
-        UpdateRes = DefaultLvalueConversion(RefRes.get());
-      }
-      if (!UpdateRes.isUsable()) {
-        IsCorrect = false;
-        continue;
-      }
-      UpdateRes = CreateBuiltinBinOp(D.AssignmentLoc, BO_Add, D.Range.Begin,
-                                     UpdateRes.get());
-      if (!UpdateRes.isUsable()) {
-        IsCorrect = false;
-        continue;
-      }
-      ExprResult VDRes =
-          BuildDeclRefExpr(cast<VarDecl>(D.IteratorDecl),
-                           cast<VarDecl>(D.IteratorDecl)->getType(), VK_LValue,
-                           D.IteratorDecl->getBeginLoc());
-      UpdateRes = CreateBuiltinBinOp(D.AssignmentLoc, BO_Assign, VDRes.get(),
-                                     UpdateRes.get());
-      if (!UpdateRes.isUsable()) {
-        IsCorrect = false;
-        continue;
-      }
-      UpdateRes =
-          ActOnFinishFullExpr(UpdateRes.get(), /*DiscardedValue=*/true);
-      if (!UpdateRes.isUsable()) {
-        IsCorrect = false;
-        continue;
-      }
-      ExprResult CounterUpdateRes =
-          CreateBuiltinUnaryOp(D.AssignmentLoc, UO_PreInc, RefRes.get());
-      if (!CounterUpdateRes.isUsable()) {
-        IsCorrect = false;
-        continue;
-      }
-      CounterUpdateRes =
-          ActOnFinishFullExpr(CounterUpdateRes.get(), /*DiscardedValue=*/true);
-      if (!CounterUpdateRes.isUsable()) {
-        IsCorrect = false;
-        continue;
-      }
-      OMPIteratorHelperData &HD = Helpers.emplace_back();
-      HD.CounterVD = CounterVD;
-      HD.Upper = Res.get();
-      HD.Update = UpdateRes.get();
-      HD.CounterUpdate = CounterUpdateRes.get();
-    }
-  } else {
-    Helpers.assign(ID.size(), {});
-  }
-  if (!IsCorrect) {
-    // Invalidate all created iterator declarations if error is found.
-    for (const OMPIteratorExpr::IteratorDefinition &D : ID) {
-      if (Decl *ID = D.IteratorDecl)
-        ID->setInvalidDecl();
-    }
-    return ExprError();
-  }
-  return OMPIteratorExpr::Create(Context, Context.OMPIteratorTy, IteratorKwLoc,
-                                 LLoc, RLoc, ID, Helpers);
-}
-
 ExprResult
 Sema::CreateBuiltinArraySubscriptExpr(Expr *Base, SourceLocation LLoc,
                                       Expr *Idx, SourceLocation RLoc) {
@@ -7190,8 +6640,8 @@ ExprResult Sema::ActOnCallExpr(Scope *Scope, Expr *Fn, SourceLocation LParenLoc,
   }
 
   if (LangOpts.OpenMP)
-    Call = ActOnOpenMPCall(Call, Scope, LParenLoc, ArgExprs, RParenLoc,
-                           ExecConfig);
+    Call = OpenMP().ActOnOpenMPCall(Call, Scope, LParenLoc, ArgExprs, RParenLoc,
+                                    ExecConfig);
   if (LangOpts.CPlusPlus) {
     if (const auto *CE = dyn_cast<CallExpr>(Call.get()))
       DiagnosedUnqualifiedCallsToStdFunctions(*this, CE);
@@ -19193,7 +18643,7 @@ MarkVarDeclODRUsed(ValueDecl *V, SourceLocation Loc, Sema &SemaRef,
   }
   QualType CaptureType, DeclRefType;
   if (SemaRef.LangOpts.OpenMP)
-    SemaRef.tryCaptureOpenMPLambdas(V);
+    SemaRef.OpenMP().tryCaptureOpenMPLambdas(V);
   SemaRef.tryCaptureVariable(V, Loc, Sema::TryCapture_Implicit,
                              /*EllipsisLoc*/ SourceLocation(),
                              /*BuildAndDiagnose*/ true, CaptureType,
@@ -19474,7 +18924,7 @@ static bool captureInBlock(BlockScopeInfo *BSI, ValueDecl *Var,
 
   const bool HasBlocksAttr = Var->hasAttr<BlocksAttr>();
   if (HasBlocksAttr || CaptureType->isReferenceType() ||
-      (S.getLangOpts().OpenMP && S.isOpenMPCapturedDecl(Var))) {
+      (S.getLangOpts().OpenMP && S.OpenMP().isOpenMPCapturedDecl(Var))) {
     // Block capture by reference does not change the capture or
     // declaration reference types.
     ByRef = true;
@@ -19504,7 +18954,7 @@ static bool captureInCapturedRegion(
     ByRef = (Kind == Sema::TryCapture_ExplicitByRef);
   } else if (S.getLangOpts().OpenMP && RSI->CapRegionKind == CR_OpenMP) {
     // Using an LValue reference type is consistent with Lambdas (see below).
-    if (S.isOpenMPCapturedDecl(Var)) {
+    if (S.OpenMP().isOpenMPCapturedDecl(Var)) {
       bool HasConst = DeclRefType.isConstQualified();
       DeclRefType = DeclRefType.getUnqualifiedType();
       // Don't lose diagnostics about assignments to const.
@@ -19512,11 +18962,11 @@ static bool captureInCapturedRegion(
         DeclRefType.addConst();
     }
     // Do not capture firstprivates in tasks.
-    if (S.isOpenMPPrivateDecl(Var, RSI->OpenMPLevel, RSI->OpenMPCaptureLevel) !=
-        OMPC_unknown)
+    if (S.OpenMP().isOpenMPPrivateDecl(Var, RSI->OpenMPLevel,
+                                       RSI->OpenMPCaptureLevel) != OMPC_unknown)
       return true;
-    ByRef = S.isOpenMPCapturedByRef(Var, RSI->OpenMPLevel,
-                                    RSI->OpenMPCaptureLevel);
+    ByRef = S.OpenMP().isOpenMPCapturedByRef(Var, RSI->OpenMPLevel,
+                                             RSI->OpenMPCaptureLevel);
   }
 
   if (ByRef)
@@ -19777,9 +19227,9 @@ bool Sema::tryCaptureVariable(
   // Capture global variables if it is required to use private copy of this
   // variable.
   bool IsGlobal = !VD->hasLocalStorage();
-  if (IsGlobal &&
-      !(LangOpts.OpenMP && isOpenMPCapturedDecl(Var, /*CheckScopeInfo=*/true,
-                                                MaxFunctionScopesIndex)))
+  if (IsGlobal && !(LangOpts.OpenMP &&
+                    OpenMP().isOpenMPCapturedDecl(Var, /*CheckScopeInfo=*/true,
+                                                  MaxFunctionScopesIndex)))
     return true;
 
   if (isa<VarDecl>(Var))
@@ -19897,7 +19347,7 @@ bool Sema::tryCaptureVariable(
             }
             return true;
           }
-          OpenMPClauseKind IsOpenMPPrivateDecl = isOpenMPPrivateDecl(
+          OpenMPClauseKind IsOpenMPPrivateDecl = OpenMP().isOpenMPPrivateDecl(
               Var, RSI->OpenMPLevel, RSI->OpenMPCaptureLevel);
           // If the variable is private (i.e. not captured) and has variably
           // modified type, we still need to capture the type for correct
@@ -19908,7 +19358,8 @@ bool Sema::tryCaptureVariable(
             QualType QTy = Var->getType();
             if (ParmVarDecl *PVD = dyn_cast_or_null<ParmVarDecl>(Var))
               QTy = PVD->getOriginalType();
-            for (int I = 1, E = getNumberOfConstructScopes(RSI->OpenMPLevel);
+            for (int I = 1,
+                     E = OpenMP().getNumberOfConstructScopes(RSI->OpenMPLevel);
                  I < E; ++I) {
               auto *OuterRSI = cast<CapturedRegionScopeInfo>(
                   FunctionScopes[FunctionScopesIndex - I]);
@@ -19920,18 +19371,19 @@ bool Sema::tryCaptureVariable(
           }
           bool IsTargetCap =
               IsOpenMPPrivateDecl != OMPC_private &&
-              isOpenMPTargetCapturedDecl(Var, RSI->OpenMPLevel,
-                                         RSI->OpenMPCaptureLevel);
+              OpenMP().isOpenMPTargetCapturedDecl(Var, RSI->OpenMPLevel,
+                                                  RSI->OpenMPCaptureLevel);
           // Do not capture global if it is not privatized in outer regions.
           bool IsGlobalCap =
-              IsGlobal && isOpenMPGlobalCapturedDecl(Var, RSI->OpenMPLevel,
-                                                     RSI->OpenMPCaptureLevel);
+              IsGlobal && OpenMP().isOpenMPGlobalCapturedDecl(
+                              Var, RSI->OpenMPLevel, RSI->OpenMPCaptureLevel);
 
           // When we detect target captures we are looking from inside the
           // target region, therefore we need to propagate the capture from the
           // enclosing region. Therefore, the capture is not initially nested.
           if (IsTargetCap)
-            adjustOpenMPTargetScopeIndex(FunctionScopesIndex, RSI->OpenMPLevel);
+            OpenMP().adjustOpenMPTargetScopeIndex(FunctionScopesIndex,
+                                                  RSI->OpenMPLevel);
 
           if (IsTargetCap || IsOpenMPPrivateDecl == OMPC_private ||
               (IsGlobal && !IsGlobalCap)) {
@@ -20753,8 +20205,8 @@ static void
 MarkExprReferenced(Sema &SemaRef, SourceLocation Loc, Decl *D, Expr *E,
                    bool MightBeOdrUse,
                    llvm::DenseMap<const VarDecl *, int> &RefsMinusAssignments) {
-  if (SemaRef.isInOpenMPDeclareTargetContext())
-    SemaRef.checkDeclIsAllowedInOpenMPTarget(E, D);
+  if (SemaRef.OpenMP().isInOpenMPDeclareTargetContext())
+    SemaRef.OpenMP().checkDeclIsAllowedInOpenMPTarget(E, D);
 
   if (VarDecl *Var = dyn_cast<VarDecl>(D)) {
     DoMarkVarDeclReferenced(SemaRef, Loc, Var, E, RefsMinusAssignments);
diff --git a/clang/lib/Sema/SemaExprMember.cpp b/clang/lib/Sema/SemaExprMember.cpp
index 32998ae60eaf..7ea6d733fe5a 100644
--- a/clang/lib/Sema/SemaExprMember.cpp
+++ b/clang/lib/Sema/SemaExprMember.cpp
@@ -9,7 +9,6 @@
 //  This file implements semantic analysis member access expressions.
 //
 //===----------------------------------------------------------------------===//
-#include "clang/Sema/Overload.h"
 #include "clang/AST/ASTLambda.h"
 #include "clang/AST/DeclCXX.h"
 #include "clang/AST/DeclObjC.h"
@@ -18,9 +17,11 @@
 #include "clang/AST/ExprObjC.h"
 #include "clang/Lex/Preprocessor.h"
 #include "clang/Sema/Lookup.h"
+#include "clang/Sema/Overload.h"
 #include "clang/Sema/Scope.h"
 #include "clang/Sema/ScopeInfo.h"
 #include "clang/Sema/SemaInternal.h"
+#include "clang/Sema/SemaOpenMP.h"
 
 using namespace clang;
 using namespace sema;
@@ -1900,9 +1901,9 @@ Sema::BuildFieldReferenceExpr(Expr *BaseExpr, bool IsArrow,
   if (getLangOpts().OpenMP && IsArrow &&
       !CurContext->isDependentContext() &&
       isa<CXXThisExpr>(Base.get()->IgnoreParenImpCasts())) {
-    if (auto *PrivateCopy = isOpenMPCapturedDecl(Field)) {
-      return getOpenMPCapturedExpr(PrivateCopy, VK, OK,
-                                   MemberNameInfo.getLoc());
+    if (auto *PrivateCopy = OpenMP().isOpenMPCapturedDecl(Field)) {
+      return OpenMP().getOpenMPCapturedExpr(PrivateCopy, VK, OK,
+                                            MemberNameInfo.getLoc());
     }
   }
 
diff --git a/clang/lib/Sema/SemaLambda.cpp b/clang/lib/Sema/SemaLambda.cpp
index 35a51c6c2328..1743afaf1528 100644
--- a/clang/lib/Sema/SemaLambda.cpp
+++ b/clang/lib/Sema/SemaLambda.cpp
@@ -21,6 +21,7 @@
 #include "clang/Sema/ScopeInfo.h"
 #include "clang/Sema/SemaCUDA.h"
 #include "clang/Sema/SemaInternal.h"
+#include "clang/Sema/SemaOpenMP.h"
 #include "clang/Sema/Template.h"
 #include "llvm/ADT/STLExtras.h"
 #include <optional>
@@ -1398,7 +1399,7 @@ void Sema::ActOnStartOfLambdaDefinition(LambdaIntroducer &Intro,
 
   // OpenMP lambdas might get assumumption attributes.
   if (LangOpts.OpenMP)
-    ActOnFinishedFunctionDefinitionInOpenMPAssumeScope(Method);
+    OpenMP().ActOnFinishedFunctionDefinitionInOpenMPAssumeScope(Method);
 
   handleLambdaNumbering(Class, Method);
 
diff --git a/clang/lib/Sema/SemaOpenMP.cpp b/clang/lib/Sema/SemaOpenMP.cpp
index e9efb4721133..d229ef650bcc 100644
--- a/clang/lib/Sema/SemaOpenMP.cpp
+++ b/clang/lib/Sema/SemaOpenMP.cpp
@@ -11,6 +11,7 @@
 ///
 //===----------------------------------------------------------------------===//
 
+#include "clang/Sema/SemaOpenMP.h"
 #include "TreeTransform.h"
 #include "clang/AST/ASTContext.h"
 #include "clang/AST/ASTMutationListener.h"
@@ -33,6 +34,7 @@
 #include "clang/Sema/ParsedAttr.h"
 #include "clang/Sema/Scope.h"
 #include "clang/Sema/ScopeInfo.h"
+#include "clang/Sema/Sema.h"
 #include "clang/Sema/SemaInternal.h"
 #include "llvm/ADT/IndexedMap.h"
 #include "llvm/ADT/PointerEmbeddedInt.h"
@@ -1808,9 +1810,9 @@ const DSAStackTy::DSAVarData DSAStackTy::getTopDSA(ValueDecl *D,
           return DVar;
         }
         const_iterator End = end();
-        if (!SemaRef.isOpenMPCapturedByRef(D,
-                                           std::distance(ParentIterTarget, End),
-                                           /*OpenMPCaptureLevel=*/0)) {
+        if (!SemaRef.OpenMP().isOpenMPCapturedByRef(
+                D, std::distance(ParentIterTarget, End),
+                /*OpenMPCaptureLevel=*/0)) {
           DVar.RefExpr =
               buildDeclRefExpr(SemaRef, VD, D->getType().getNonReferenceType(),
                                IterTarget->ConstructLoc);
@@ -2018,22 +2020,22 @@ bool DSAStackTy::hasDirective(
   return false;
 }
 
-void Sema::InitDataSharingAttributesStack() {
-  VarDataSharingAttributesStack = new DSAStackTy(*this);
+void SemaOpenMP::InitDataSharingAttributesStack() {
+  VarDataSharingAttributesStack = new DSAStackTy(SemaRef);
 }
 
 #define DSAStack static_cast<DSAStackTy *>(VarDataSharingAttributesStack)
 
-void Sema::pushOpenMPFunctionRegion() { DSAStack->pushFunction(); }
+void SemaOpenMP::pushOpenMPFunctionRegion() { DSAStack->pushFunction(); }
 
-void Sema::popOpenMPFunctionRegion(const FunctionScopeInfo *OldFSI) {
+void SemaOpenMP::popOpenMPFunctionRegion(const FunctionScopeInfo *OldFSI) {
   DSAStack->popFunction(OldFSI);
 }
 
 static bool isOpenMPDeviceDelayedContext(Sema &S) {
   assert(S.LangOpts.OpenMP && S.LangOpts.OpenMPIsTargetDevice &&
          "Expected OpenMP device compilation.");
-  return !S.isInOpenMPTargetExecutionDirective();
+  return !S.OpenMP().isInOpenMPTargetExecutionDirective();
 }
 
 namespace {
@@ -2045,20 +2047,20 @@ enum class FunctionEmissionStatus {
 };
 } // anonymous namespace
 
-Sema::SemaDiagnosticBuilder
-Sema::diagIfOpenMPDeviceCode(SourceLocation Loc, unsigned DiagID,
-                             const FunctionDecl *FD) {
-  assert(LangOpts.OpenMP && LangOpts.OpenMPIsTargetDevice &&
+SemaBase::SemaDiagnosticBuilder
+SemaOpenMP::diagIfOpenMPDeviceCode(SourceLocation Loc, unsigned DiagID,
+                                   const FunctionDecl *FD) {
+  assert(getLangOpts().OpenMP && getLangOpts().OpenMPIsTargetDevice &&
          "Expected OpenMP device compilation.");
 
   SemaDiagnosticBuilder::Kind Kind = SemaDiagnosticBuilder::K_Nop;
   if (FD) {
-    FunctionEmissionStatus FES = getEmissionStatus(FD);
+    Sema::FunctionEmissionStatus FES = SemaRef.getEmissionStatus(FD);
     switch (FES) {
-    case FunctionEmissionStatus::Emitted:
+    case Sema::FunctionEmissionStatus::Emitted:
       Kind = SemaDiagnosticBuilder::K_Immediate;
       break;
-    case FunctionEmissionStatus::Unknown:
+    case Sema::FunctionEmissionStatus::Unknown:
       // TODO: We should always delay diagnostics here in case a target
       //       region is in a function we do not emit. However, as the
       //       current diagnostics are associated with the function containing
@@ -2066,48 +2068,48 @@ Sema::diagIfOpenMPDeviceCode(SourceLocation Loc, unsigned DiagID,
       //       on diagnostics for the target region itself. We need to anchor
       //       the diagnostics with the new generated function *or* ensure we
       //       emit diagnostics associated with the surrounding function.
-      Kind = isOpenMPDeviceDelayedContext(*this)
+      Kind = isOpenMPDeviceDelayedContext(SemaRef)
                  ? SemaDiagnosticBuilder::K_Deferred
                  : SemaDiagnosticBuilder::K_Immediate;
       break;
-    case FunctionEmissionStatus::TemplateDiscarded:
-    case FunctionEmissionStatus::OMPDiscarded:
+    case Sema::FunctionEmissionStatus::TemplateDiscarded:
+    case Sema::FunctionEmissionStatus::OMPDiscarded:
       Kind = SemaDiagnosticBuilder::K_Nop;
       break;
-    case FunctionEmissionStatus::CUDADiscarded:
+    case Sema::FunctionEmissionStatus::CUDADiscarded:
       llvm_unreachable("CUDADiscarded unexpected in OpenMP device compilation");
       break;
     }
   }
 
-  return SemaDiagnosticBuilder(Kind, Loc, DiagID, FD, *this);
+  return SemaDiagnosticBuilder(Kind, Loc, DiagID, FD, SemaRef);
 }
 
-Sema::SemaDiagnosticBuilder Sema::diagIfOpenMPHostCode(SourceLocation Loc,
-                                                       unsigned DiagID,
-                                                       const FunctionDecl *FD) {
-  assert(LangOpts.OpenMP && !LangOpts.OpenMPIsTargetDevice &&
+SemaBase::SemaDiagnosticBuilder
+SemaOpenMP::diagIfOpenMPHostCode(SourceLocation Loc, unsigned DiagID,
+                                 const FunctionDecl *FD) {
+  assert(getLangOpts().OpenMP && !getLangOpts().OpenMPIsTargetDevice &&
          "Expected OpenMP host compilation.");
 
   SemaDiagnosticBuilder::Kind Kind = SemaDiagnosticBuilder::K_Nop;
   if (FD) {
-    FunctionEmissionStatus FES = getEmissionStatus(FD);
+    Sema::FunctionEmissionStatus FES = SemaRef.getEmissionStatus(FD);
     switch (FES) {
-    case FunctionEmissionStatus::Emitted:
+    case Sema::FunctionEmissionStatus::Emitted:
       Kind = SemaDiagnosticBuilder::K_Immediate;
       break;
-    case FunctionEmissionStatus::Unknown:
+    case Sema::FunctionEmissionStatus::Unknown:
       Kind = SemaDiagnosticBuilder::K_Deferred;
       break;
-    case FunctionEmissionStatus::TemplateDiscarded:
-    case FunctionEmissionStatus::OMPDiscarded:
-    case FunctionEmissionStatus::CUDADiscarded:
+    case Sema::FunctionEmissionStatus::TemplateDiscarded:
+    case Sema::FunctionEmissionStatus::OMPDiscarded:
+    case Sema::FunctionEmissionStatus::CUDADiscarded:
       Kind = SemaDiagnosticBuilder::K_Nop;
       break;
     }
   }
 
-  return SemaDiagnosticBuilder(Kind, Loc, DiagID, FD, *this);
+  return SemaDiagnosticBuilder(Kind, Loc, DiagID, FD, SemaRef);
 }
 
 static OpenMPDefaultmapClauseKind
@@ -2124,9 +2126,9 @@ getVariableCategoryFromDecl(const LangOptions &LO, const ValueDecl *VD) {
   return OMPC_DEFAULTMAP_aggregate;
 }
 
-bool Sema::isOpenMPCapturedByRef(const ValueDecl *D, unsigned Level,
-                                 unsigned OpenMPCaptureLevel) const {
-  assert(LangOpts.OpenMP && "OpenMP is not allowed");
+bool SemaOpenMP::isOpenMPCapturedByRef(const ValueDecl *D, unsigned Level,
+                                       unsigned OpenMPCaptureLevel) const {
+  assert(getLangOpts().OpenMP && "OpenMP is not allowed");
 
   ASTContext &Ctx = getASTContext();
   bool IsByRef = true;
@@ -2252,7 +2254,7 @@ bool Sema::isOpenMPCapturedByRef(const ValueDecl *D, unsigned Level,
                  !Ty->isAnyPointerType()) ||
                 !Ty->isScalarType() ||
                 DSAStack->isDefaultmapCapturedByRef(
-                    Level, getVariableCategoryFromDecl(LangOpts, D)) ||
+                    Level, getVariableCategoryFromDecl(getLangOpts(), D)) ||
                 DSAStack->hasExplicitDSA(
                     D,
                     [](OpenMPClauseKind K, bool AppliedToPointee) {
@@ -2303,17 +2305,17 @@ bool Sema::isOpenMPCapturedByRef(const ValueDecl *D, unsigned Level,
   return IsByRef;
 }
 
-unsigned Sema::getOpenMPNestingLevel() const {
+unsigned SemaOpenMP::getOpenMPNestingLevel() const {
   assert(getLangOpts().OpenMP);
   return DSAStack->getNestingLevel();
 }
 
-bool Sema::isInOpenMPTaskUntiedContext() const {
+bool SemaOpenMP::isInOpenMPTaskUntiedContext() const {
   return isOpenMPTaskingDirective(DSAStack->getCurrentDirective()) &&
          DSAStack->isUntiedRegion();
 }
 
-bool Sema::isInOpenMPTargetExecutionDirective() const {
+bool SemaOpenMP::isInOpenMPTargetExecutionDirective() const {
   return (isOpenMPTargetExecutionDirective(DSAStack->getCurrentDirective()) &&
           !DSAStack->isClauseParsingMode()) ||
          DSAStack->hasDirective(
@@ -2324,7 +2326,7 @@ bool Sema::isInOpenMPTargetExecutionDirective() const {
              false);
 }
 
-bool Sema::isOpenMPRebuildMemberExpr(ValueDecl *D) {
+bool SemaOpenMP::isOpenMPRebuildMemberExpr(ValueDecl *D) {
   // Only rebuild for Field.
   if (!dyn_cast<FieldDecl>(D))
     return false;
@@ -2347,9 +2349,9 @@ static OMPCapturedExprDecl *buildCaptureDecl(Sema &S, IdentifierInfo *Id,
                                              DeclContext *CurContext,
                                              bool AsExpression);
 
-VarDecl *Sema::isOpenMPCapturedDecl(ValueDecl *D, bool CheckScopeInfo,
-                                    unsigned StopAt) {
-  assert(LangOpts.OpenMP && "OpenMP is not allowed");
+VarDecl *SemaOpenMP::isOpenMPCapturedDecl(ValueDecl *D, bool CheckScopeInfo,
+                                          unsigned StopAt) {
+  assert(getLangOpts().OpenMP && "OpenMP is not allowed");
   D = getCanonicalDecl(D);
 
   auto *VD = dyn_cast<VarDecl>(D);
@@ -2368,7 +2370,8 @@ VarDecl *Sema::isOpenMPCapturedDecl(ValueDecl *D, bool CheckScopeInfo,
   // 'target' we return true so that this global is also mapped to the device.
   //
   if (VD && !VD->hasLocalStorage() &&
-      (getCurCapturedRegion() || getCurBlock() || getCurLambda())) {
+      (SemaRef.getCurCapturedRegion() || SemaRef.getCurBlock() ||
+       SemaRef.getCurLambda())) {
     if (isInOpenMPTargetExecutionDirective()) {
       DSAStackTy::DSAVarData DVarTop =
           DSAStack->getTopDSA(D, DSAStack->isClauseParsingMode());
@@ -2381,8 +2384,9 @@ VarDecl *Sema::isOpenMPCapturedDecl(ValueDecl *D, bool CheckScopeInfo,
         return nullptr;
       CapturedRegionScopeInfo *CSI = nullptr;
       for (FunctionScopeInfo *FSI : llvm::drop_begin(
-               llvm::reverse(FunctionScopes),
-               CheckScopeInfo ? (FunctionScopes.size() - (StopAt + 1)) : 0)) {
+               llvm::reverse(SemaRef.FunctionScopes),
+               CheckScopeInfo ? (SemaRef.FunctionScopes.size() - (StopAt + 1))
+                              : 0)) {
         if (!isa<CapturingScopeInfo>(FSI))
           return nullptr;
         if (auto *RSI = dyn_cast<CapturedRegionScopeInfo>(FSI))
@@ -2401,7 +2405,7 @@ VarDecl *Sema::isOpenMPCapturedDecl(ValueDecl *D, bool CheckScopeInfo,
     if (isInOpenMPDeclareTargetContext()) {
       // Try to mark variable as declare target if it is used in capturing
       // regions.
-      if (LangOpts.OpenMP <= 45 &&
+      if (getLangOpts().OpenMP <= 45 &&
           !OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration(VD))
         checkDeclIsAllowedInOpenMPTarget(nullptr, VD);
       return nullptr;
@@ -2411,7 +2415,7 @@ VarDecl *Sema::isOpenMPCapturedDecl(ValueDecl *D, bool CheckScopeInfo,
   if (CheckScopeInfo) {
     bool OpenMPFound = false;
     for (unsigned I = StopAt + 1; I > 0; --I) {
-      FunctionScopeInfo *FSI = FunctionScopes[I - 1];
+      FunctionScopeInfo *FSI = SemaRef.FunctionScopes[I - 1];
       if (!isa<CapturingScopeInfo>(FSI))
         return nullptr;
       if (auto *RSI = dyn_cast<CapturedRegionScopeInfo>(FSI))
@@ -2476,22 +2480,23 @@ VarDecl *Sema::isOpenMPCapturedDecl(ValueDecl *D, bool CheckScopeInfo,
       VarDecl *VD = DSAStack->getImplicitFDCapExprDecl(FD);
       if (VD)
         return VD;
-      if (getCurrentThisType().isNull())
+      if (SemaRef.getCurrentThisType().isNull())
         return nullptr;
-      Expr *ThisExpr = BuildCXXThisExpr(SourceLocation(), getCurrentThisType(),
-                                        /*IsImplicit=*/true);
+      Expr *ThisExpr = SemaRef.BuildCXXThisExpr(SourceLocation(),
+                                                SemaRef.getCurrentThisType(),
+                                                /*IsImplicit=*/true);
       const CXXScopeSpec CS = CXXScopeSpec();
-      Expr *ME = BuildMemberExpr(ThisExpr, /*IsArrow=*/true, SourceLocation(),
-                                 NestedNameSpecifierLoc(), SourceLocation(), FD,
-                                 DeclAccessPair::make(FD, FD->getAccess()),
-                                 /*HadMultipleCandidates=*/false,
-                                 DeclarationNameInfo(), FD->getType(),
-                                 VK_LValue, OK_Ordinary);
+      Expr *ME = SemaRef.BuildMemberExpr(
+          ThisExpr, /*IsArrow=*/true, SourceLocation(),
+          NestedNameSpecifierLoc(), SourceLocation(), FD,
+          DeclAccessPair::make(FD, FD->getAccess()),
+          /*HadMultipleCandidates=*/false, DeclarationNameInfo(), FD->getType(),
+          VK_LValue, OK_Ordinary);
       OMPCapturedExprDecl *CD = buildCaptureDecl(
-          *this, FD->getIdentifier(), ME, DVarPrivate.CKind != OMPC_private,
-          CurContext->getParent(), /*AsExpression=*/false);
+          SemaRef, FD->getIdentifier(), ME, DVarPrivate.CKind != OMPC_private,
+          SemaRef.CurContext->getParent(), /*AsExpression=*/false);
       DeclRefExpr *VDPrivateRefExpr = buildDeclRefExpr(
-          *this, CD, CD->getType().getNonReferenceType(), SourceLocation());
+          SemaRef, CD, CD->getType().getNonReferenceType(), SourceLocation());
       VD = cast<VarDecl>(VDPrivateRefExpr->getDecl());
       DSAStack->addImplicitDefaultFirstprivateFD(FD, VD);
       return VD;
@@ -2505,28 +2510,28 @@ VarDecl *Sema::isOpenMPCapturedDecl(ValueDecl *D, bool CheckScopeInfo,
   return nullptr;
 }
 
-void Sema::adjustOpenMPTargetScopeIndex(unsigned &FunctionScopesIndex,
-                                        unsigned Level) const {
+void SemaOpenMP::adjustOpenMPTargetScopeIndex(unsigned &FunctionScopesIndex,
+                                              unsigned Level) const {
   FunctionScopesIndex -= getOpenMPCaptureLevels(DSAStack->getDirective(Level));
 }
 
-void Sema::startOpenMPLoop() {
-  assert(LangOpts.OpenMP && "OpenMP must be enabled.");
+void SemaOpenMP::startOpenMPLoop() {
+  assert(getLangOpts().OpenMP && "OpenMP must be enabled.");
   if (isOpenMPLoopDirective(DSAStack->getCurrentDirective()))
     DSAStack->loopInit();
 }
 
-void Sema::startOpenMPCXXRangeFor() {
-  assert(LangOpts.OpenMP && "OpenMP must be enabled.");
+void SemaOpenMP::startOpenMPCXXRangeFor() {
+  assert(getLangOpts().OpenMP && "OpenMP must be enabled.");
   if (isOpenMPLoopDirective(DSAStack->getCurrentDirective())) {
     DSAStack->resetPossibleLoopCounter();
     DSAStack->loopStart();
   }
 }
 
-OpenMPClauseKind Sema::isOpenMPPrivateDecl(ValueDecl *D, unsigned Level,
-                                           unsigned CapLevel) const {
-  assert(LangOpts.OpenMP && "OpenMP is not allowed");
+OpenMPClauseKind SemaOpenMP::isOpenMPPrivateDecl(ValueDecl *D, unsigned Level,
+                                                 unsigned CapLevel) const {
+  assert(getLangOpts().OpenMP && "OpenMP is not allowed");
   if (DSAStack->getCurrentDirective() != OMPD_unknown &&
       (!DSAStack->isClauseParsingMode() ||
        DSAStack->getParentDirective() != OMPD_unknown)) {
@@ -2546,7 +2551,8 @@ OpenMPClauseKind Sema::isOpenMPPrivateDecl(ValueDecl *D, unsigned Level,
   }
   if (DSAStack->hasExplicitDirective(isOpenMPTaskingDirective, Level)) {
     bool IsTriviallyCopyable =
-        D->getType().getNonReferenceType().isTriviallyCopyableType(Context) &&
+        D->getType().getNonReferenceType().isTriviallyCopyableType(
+            getASTContext()) &&
         !D->getType()
              .getNonReferenceType()
              .getCanonicalType()
@@ -2620,9 +2626,9 @@ OpenMPClauseKind Sema::isOpenMPPrivateDecl(ValueDecl *D, unsigned Level,
              : OMPC_unknown;
 }
 
-void Sema::setOpenMPCaptureKind(FieldDecl *FD, const ValueDecl *D,
-                                unsigned Level) {
-  assert(LangOpts.OpenMP && "OpenMP is not allowed");
+void SemaOpenMP::setOpenMPCaptureKind(FieldDecl *FD, const ValueDecl *D,
+                                      unsigned Level) {
+  assert(getLangOpts().OpenMP && "OpenMP is not allowed");
   D = getCanonicalDecl(D);
   OpenMPClauseKind OMPC = OMPC_unknown;
   for (unsigned I = DSAStack->getNestingLevel() + 1; I > Level; --I) {
@@ -2649,18 +2655,19 @@ void Sema::setOpenMPCaptureKind(FieldDecl *FD, const ValueDecl *D,
                                        NewLevel)) {
       OMPC = OMPC_map;
       if (DSAStack->mustBeFirstprivateAtLevel(
-              NewLevel, getVariableCategoryFromDecl(LangOpts, D)))
+              NewLevel, getVariableCategoryFromDecl(getLangOpts(), D)))
         OMPC = OMPC_firstprivate;
       break;
     }
   }
   if (OMPC != OMPC_unknown)
-    FD->addAttr(OMPCaptureKindAttr::CreateImplicit(Context, unsigned(OMPC)));
+    FD->addAttr(
+        OMPCaptureKindAttr::CreateImplicit(getASTContext(), unsigned(OMPC)));
 }
 
-bool Sema::isOpenMPTargetCapturedDecl(const ValueDecl *D, unsigned Level,
-                                      unsigned CaptureLevel) const {
-  assert(LangOpts.OpenMP && "OpenMP is not allowed");
+bool SemaOpenMP::isOpenMPTargetCapturedDecl(const ValueDecl *D, unsigned Level,
+                                            unsigned CaptureLevel) const {
+  assert(getLangOpts().OpenMP && "OpenMP is not allowed");
   // Return true if the current level is no longer enclosed in a target region.
 
   SmallVector<OpenMPDirectiveKind, 4> Regions;
@@ -2672,9 +2679,9 @@ bool Sema::isOpenMPTargetCapturedDecl(const ValueDecl *D, unsigned Level,
          Regions[CaptureLevel] != OMPD_task;
 }
 
-bool Sema::isOpenMPGlobalCapturedDecl(ValueDecl *D, unsigned Level,
-                                      unsigned CaptureLevel) const {
-  assert(LangOpts.OpenMP && "OpenMP is not allowed");
+bool SemaOpenMP::isOpenMPGlobalCapturedDecl(ValueDecl *D, unsigned Level,
+                                            unsigned CaptureLevel) const {
+  assert(getLangOpts().OpenMP && "OpenMP is not allowed");
   // Return true if the current level is no longer enclosed in a target region.
 
   if (const auto *VD = dyn_cast<VarDecl>(D)) {
@@ -2702,37 +2709,37 @@ bool Sema::isOpenMPGlobalCapturedDecl(ValueDecl *D, unsigned Level,
   return true;
 }
 
-void Sema::DestroyDataSharingAttributesStack() { delete DSAStack; }
+void SemaOpenMP::DestroyDataSharingAttributesStack() { delete DSAStack; }
 
-void Sema::ActOnOpenMPBeginDeclareVariant(SourceLocation Loc,
-                                          OMPTraitInfo &TI) {
+void SemaOpenMP::ActOnOpenMPBeginDeclareVariant(SourceLocation Loc,
+                                                OMPTraitInfo &TI) {
   OMPDeclareVariantScopes.push_back(OMPDeclareVariantScope(TI));
 }
 
-void Sema::ActOnOpenMPEndDeclareVariant() {
+void SemaOpenMP::ActOnOpenMPEndDeclareVariant() {
   assert(isInOpenMPDeclareVariantScope() &&
          "Not in OpenMP declare variant scope!");
 
   OMPDeclareVariantScopes.pop_back();
 }
 
-void Sema::finalizeOpenMPDelayedAnalysis(const FunctionDecl *Caller,
-                                         const FunctionDecl *Callee,
-                                         SourceLocation Loc) {
-  assert(LangOpts.OpenMP && "Expected OpenMP compilation mode.");
+void SemaOpenMP::finalizeOpenMPDelayedAnalysis(const FunctionDecl *Caller,
+                                               const FunctionDecl *Callee,
+                                               SourceLocation Loc) {
+  assert(getLangOpts().OpenMP && "Expected OpenMP compilation mode.");
   std::optional<OMPDeclareTargetDeclAttr::DevTypeTy> DevTy =
       OMPDeclareTargetDeclAttr::getDeviceType(Caller->getMostRecentDecl());
   // Ignore host functions during device analyzis.
-  if (LangOpts.OpenMPIsTargetDevice &&
+  if (getLangOpts().OpenMPIsTargetDevice &&
       (!DevTy || *DevTy == OMPDeclareTargetDeclAttr::DT_Host))
     return;
   // Ignore nohost functions during host analyzis.
-  if (!LangOpts.OpenMPIsTargetDevice && DevTy &&
+  if (!getLangOpts().OpenMPIsTargetDevice && DevTy &&
       *DevTy == OMPDeclareTargetDeclAttr::DT_NoHost)
     return;
   const FunctionDecl *FD = Callee->getMostRecentDecl();
   DevTy = OMPDeclareTargetDeclAttr::getDeviceType(FD);
-  if (LangOpts.OpenMPIsTargetDevice && DevTy &&
+  if (getLangOpts().OpenMPIsTargetDevice && DevTy &&
       *DevTy == OMPDeclareTargetDeclAttr::DT_Host) {
     // Diagnose host function called during device codegen.
     StringRef HostDevTy =
@@ -2743,8 +2750,9 @@ void Sema::finalizeOpenMPDelayedAnalysis(const FunctionDecl *Caller,
         << HostDevTy;
     return;
   }
-  if (!LangOpts.OpenMPIsTargetDevice && !LangOpts.OpenMPOffloadMandatory &&
-      DevTy && *DevTy == OMPDeclareTargetDeclAttr::DT_NoHost) {
+  if (!getLangOpts().OpenMPIsTargetDevice &&
+      !getLangOpts().OpenMPOffloadMandatory && DevTy &&
+      *DevTy == OMPDeclareTargetDeclAttr::DT_NoHost) {
     // In OpenMP 5.2 or later, if the function has a host variant then allow
     // that to be called instead
     auto &&HasHostAttr = [](const FunctionDecl *Callee) {
@@ -2773,21 +2781,21 @@ void Sema::finalizeOpenMPDelayedAnalysis(const FunctionDecl *Caller,
   }
 }
 
-void Sema::StartOpenMPDSABlock(OpenMPDirectiveKind DKind,
-                               const DeclarationNameInfo &DirName,
-                               Scope *CurScope, SourceLocation Loc) {
+void SemaOpenMP::StartOpenMPDSABlock(OpenMPDirectiveKind DKind,
+                                     const DeclarationNameInfo &DirName,
+                                     Scope *CurScope, SourceLocation Loc) {
   DSAStack->push(DKind, DirName, CurScope, Loc);
-  PushExpressionEvaluationContext(
-      ExpressionEvaluationContext::PotentiallyEvaluated);
+  SemaRef.PushExpressionEvaluationContext(
+      Sema::ExpressionEvaluationContext::PotentiallyEvaluated);
 }
 
-void Sema::StartOpenMPClause(OpenMPClauseKind K) {
+void SemaOpenMP::StartOpenMPClause(OpenMPClauseKind K) {
   DSAStack->setClauseParsingMode(K);
 }
 
-void Sema::EndOpenMPClause() {
+void SemaOpenMP::EndOpenMPClause() {
   DSAStack->setClauseParsingMode(/*K=*/OMPC_unknown);
-  CleanupVarDeclMarking();
+  SemaRef.CleanupVarDeclMarking();
 }
 
 static std::pair<ValueDecl *, bool>
@@ -2871,7 +2879,7 @@ static void reportOriginalDsa(Sema &SemaRef, const DSAStackTy *Stack,
                               const DSAStackTy::DSAVarData &DVar,
                               bool IsLoopIterVar = false);
 
-void Sema::EndOpenMPDSABlock(Stmt *CurDirective) {
+void SemaOpenMP::EndOpenMPDSABlock(Stmt *CurDirective) {
   // OpenMP [2.14.3.5, Restrictions, C/C++, p.1]
   //  A variable of class type (or array thereof) that appears in a lastprivate
   //  clause requires an accessible, unambiguous default constructor for the
@@ -2898,15 +2906,15 @@ void Sema::EndOpenMPDSABlock(Stmt *CurDirective) {
             // variable is not added to IdResolver, so the code in the OpenMP
             // region uses original variable for proper diagnostics.
             VarDecl *VDPrivate = buildVarDecl(
-                *this, DE->getExprLoc(), Type.getUnqualifiedType(),
+                SemaRef, DE->getExprLoc(), Type.getUnqualifiedType(),
                 VD->getName(), VD->hasAttrs() ? &VD->getAttrs() : nullptr, DRE);
-            ActOnUninitializedDecl(VDPrivate);
+            SemaRef.ActOnUninitializedDecl(VDPrivate);
             if (VDPrivate->isInvalidDecl()) {
               PrivateCopies.push_back(nullptr);
               continue;
             }
             PrivateCopies.push_back(buildDeclRefExpr(
-                *this, VDPrivate, DE->getType(), DE->getExprLoc()));
+                SemaRef, VDPrivate, DE->getType(), DE->getExprLoc()));
           } else {
             // The variable is also a firstprivate, so initialization sequence
             // for private copy is generated already.
@@ -2924,7 +2932,7 @@ void Sema::EndOpenMPDSABlock(Stmt *CurDirective) {
           SourceLocation ELoc;
           SourceRange ERange;
           Expr *SimpleRefExpr = RefExpr;
-          auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange);
+          auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange);
           if (Res.second)
             // It will be analyzed later.
             PrivateRefs.push_back(RefExpr);
@@ -2977,7 +2985,7 @@ void Sema::EndOpenMPDSABlock(Stmt *CurDirective) {
                  diag::err_omp_allocator_used_in_clauses)
                 << D.Allocator->getSourceRange();
             if (DVar.RefExpr)
-              reportOriginalDsa(*this, DSAStack, VD, DVar);
+              reportOriginalDsa(SemaRef, DSAStack, VD, DVar);
             else
               Diag(MapExpr->getExprLoc(), diag::note_used_here)
                   << MapExpr->getSourceRange();
@@ -2987,14 +2995,14 @@ void Sema::EndOpenMPDSABlock(Stmt *CurDirective) {
       }
     }
     // Check allocate clauses.
-    if (!CurContext->isDependentContext())
-      checkAllocateClauses(*this, DSAStack, D->clauses());
-    checkReductionClauses(*this, DSAStack, D->clauses());
+    if (!SemaRef.CurContext->isDependentContext())
+      checkAllocateClauses(SemaRef, DSAStack, D->clauses());
+    checkReductionClauses(SemaRef, DSAStack, D->clauses());
   }
 
   DSAStack->pop();
-  DiscardCleanupsInEvaluationContext();
-  PopExpressionEvaluationContext();
+  SemaRef.DiscardCleanupsInEvaluationContext();
+  SemaRef.PopExpressionEvaluationContext();
 }
 
 static bool FinishOpenMPLinearClause(OMPLinearClause &Clause, DeclRefExpr *IV,
@@ -3047,27 +3055,28 @@ public:
 
 } // namespace
 
-ExprResult Sema::ActOnOpenMPIdExpression(Scope *CurScope,
-                                         CXXScopeSpec &ScopeSpec,
-                                         const DeclarationNameInfo &Id,
-                                         OpenMPDirectiveKind Kind) {
-  LookupResult Lookup(*this, Id, LookupOrdinaryName);
-  LookupParsedName(Lookup, CurScope, &ScopeSpec, true);
+ExprResult SemaOpenMP::ActOnOpenMPIdExpression(Scope *CurScope,
+                                               CXXScopeSpec &ScopeSpec,
+                                               const DeclarationNameInfo &Id,
+                                               OpenMPDirectiveKind Kind) {
+  ASTContext &Context = getASTContext();
+  LookupResult Lookup(SemaRef, Id, Sema::LookupOrdinaryName);
+  SemaRef.LookupParsedName(Lookup, CurScope, &ScopeSpec, true);
 
   if (Lookup.isAmbiguous())
     return ExprError();
 
   VarDecl *VD;
   if (!Lookup.isSingleResult()) {
-    VarDeclFilterCCC CCC(*this);
+    VarDeclFilterCCC CCC(SemaRef);
     if (TypoCorrection Corrected =
-            CorrectTypo(Id, LookupOrdinaryName, CurScope, nullptr, CCC,
-                        CTK_ErrorRecovery)) {
-      diagnoseTypo(Corrected,
-                   PDiag(Lookup.empty()
-                             ? diag::err_undeclared_var_use_suggest
-                             : diag::err_omp_expected_var_arg_suggest)
-                       << Id.getName());
+            SemaRef.CorrectTypo(Id, Sema::LookupOrdinaryName, CurScope, nullptr,
+                                CCC, Sema::CTK_ErrorRecovery)) {
+      SemaRef.diagnoseTypo(
+          Corrected,
+          SemaRef.PDiag(Lookup.empty() ? diag::err_undeclared_var_use_suggest
+                                       : diag::err_omp_expected_var_arg_suggest)
+              << Id.getName());
       VD = Corrected.getCorrectionDeclAs<VarDecl>();
     } else {
       Diag(Id.getLoc(), Lookup.empty() ? diag::err_undeclared_var_use
@@ -3101,7 +3110,7 @@ ExprResult Sema::ActOnOpenMPIdExpression(Scope *CurScope,
   //   A threadprivate directive for file-scope variables must appear outside
   //   any definition or declaration.
   if (CanonicalVD->getDeclContext()->isTranslationUnit() &&
-      !getCurLexicalContext()->isTranslationUnit()) {
+      !SemaRef.getCurLexicalContext()->isTranslationUnit()) {
     Diag(Id.getLoc(), diag::err_omp_var_scope)
         << getOpenMPDirectiveName(Kind) << VD;
     bool IsDecl =
@@ -3116,7 +3125,7 @@ ExprResult Sema::ActOnOpenMPIdExpression(Scope *CurScope,
   //   in the class definition, in the same scope in which the member
   //   variables are declared.
   if (CanonicalVD->isStaticDataMember() &&
-      !CanonicalVD->getDeclContext()->Equals(getCurLexicalContext())) {
+      !CanonicalVD->getDeclContext()->Equals(SemaRef.getCurLexicalContext())) {
     Diag(Id.getLoc(), diag::err_omp_var_scope)
         << getOpenMPDirectiveName(Kind) << VD;
     bool IsDecl =
@@ -3131,8 +3140,9 @@ ExprResult Sema::ActOnOpenMPIdExpression(Scope *CurScope,
   //   outside any definition or declaration other than the namespace
   //   definition itself.
   if (CanonicalVD->getDeclContext()->isNamespace() &&
-      (!getCurLexicalContext()->isFileContext() ||
-       !getCurLexicalContext()->Encloses(CanonicalVD->getDeclContext()))) {
+      (!SemaRef.getCurLexicalContext()->isFileContext() ||
+       !SemaRef.getCurLexicalContext()->Encloses(
+           CanonicalVD->getDeclContext()))) {
     Diag(Id.getLoc(), diag::err_omp_var_scope)
         << getOpenMPDirectiveName(Kind) << VD;
     bool IsDecl =
@@ -3146,7 +3156,7 @@ ExprResult Sema::ActOnOpenMPIdExpression(Scope *CurScope,
   //   A threadprivate directive for static block-scope variables must appear
   //   in the scope of the variable and not in a nested scope.
   if (CanonicalVD->isLocalVarDecl() && CurScope &&
-      !isDeclInScope(ND, getCurLexicalContext(), CurScope)) {
+      !SemaRef.isDeclInScope(ND, SemaRef.getCurLexicalContext(), CurScope)) {
     Diag(Id.getLoc(), diag::err_omp_var_scope)
         << getOpenMPDirectiveName(Kind) << VD;
     bool IsDecl =
@@ -3174,11 +3184,11 @@ ExprResult Sema::ActOnOpenMPIdExpression(Scope *CurScope,
                              Id.getLoc(), ExprType, VK_LValue);
 }
 
-Sema::DeclGroupPtrTy
-Sema::ActOnOpenMPThreadprivateDirective(SourceLocation Loc,
-                                        ArrayRef<Expr *> VarList) {
+SemaOpenMP::DeclGroupPtrTy
+SemaOpenMP::ActOnOpenMPThreadprivateDirective(SourceLocation Loc,
+                                              ArrayRef<Expr *> VarList) {
   if (OMPThreadPrivateDecl *D = CheckOMPThreadPrivateDecl(Loc, VarList)) {
-    CurContext->addDecl(D);
+    SemaRef.CurContext->addDecl(D);
     return DeclGroupPtrTy::make(DeclGroupRef(D));
   }
   return nullptr;
@@ -3215,7 +3225,9 @@ public:
 } // namespace
 
 OMPThreadPrivateDecl *
-Sema::CheckOMPThreadPrivateDecl(SourceLocation Loc, ArrayRef<Expr *> VarList) {
+SemaOpenMP::CheckOMPThreadPrivateDecl(SourceLocation Loc,
+                                      ArrayRef<Expr *> VarList) {
+  ASTContext &Context = getASTContext();
   SmallVector<Expr *, 8> Vars;
   for (Expr *RefExpr : VarList) {
     auto *DE = cast<DeclRefExpr>(RefExpr);
@@ -3235,8 +3247,8 @@ Sema::CheckOMPThreadPrivateDecl(SourceLocation Loc, ArrayRef<Expr *> VarList) {
 
     // OpenMP [2.9.2, Restrictions, C/C++, p.10]
     //   A threadprivate variable must not have an incomplete type.
-    if (RequireCompleteType(ILoc, VD->getType(),
-                            diag::err_omp_threadprivate_incomplete_type)) {
+    if (SemaRef.RequireCompleteType(
+            ILoc, VD->getType(), diag::err_omp_threadprivate_incomplete_type)) {
       continue;
     }
 
@@ -3274,7 +3286,7 @@ Sema::CheckOMPThreadPrivateDecl(SourceLocation Loc, ArrayRef<Expr *> VarList) {
     // Check if initial value of threadprivate variable reference variable with
     // local storage (it is not supported by runtime).
     if (const Expr *Init = VD->getAnyInitializer()) {
-      LocalVarRefChecker Checker(*this);
+      LocalVarRefChecker Checker(SemaRef);
       if (Checker.Visit(Init))
         continue;
     }
@@ -3288,8 +3300,8 @@ Sema::CheckOMPThreadPrivateDecl(SourceLocation Loc, ArrayRef<Expr *> VarList) {
   }
   OMPThreadPrivateDecl *D = nullptr;
   if (!Vars.empty()) {
-    D = OMPThreadPrivateDecl::Create(Context, getCurLexicalContext(), Loc,
-                                     Vars);
+    D = OMPThreadPrivateDecl::Create(Context, SemaRef.getCurLexicalContext(),
+                                     Loc, Vars);
     D->setAccess(AS_public);
   }
   return D;
@@ -3395,10 +3407,9 @@ applyOMPAllocateAttribute(Sema &S, VarDecl *VD,
     ML->DeclarationMarkedOpenMPAllocate(VD, A);
 }
 
-Sema::DeclGroupPtrTy
-Sema::ActOnOpenMPAllocateDirective(SourceLocation Loc, ArrayRef<Expr *> VarList,
-                                   ArrayRef<OMPClause *> Clauses,
-                                   DeclContext *Owner) {
+SemaOpenMP::DeclGroupPtrTy SemaOpenMP::ActOnOpenMPAllocateDirective(
+    SourceLocation Loc, ArrayRef<Expr *> VarList, ArrayRef<OMPClause *> Clauses,
+    DeclContext *Owner) {
   assert(Clauses.size() <= 2 && "Expected at most two clauses.");
   Expr *Alignment = nullptr;
   Expr *Allocator = nullptr;
@@ -3407,9 +3418,9 @@ Sema::ActOnOpenMPAllocateDirective(SourceLocation Loc, ArrayRef<Expr *> VarList,
     // allocate directives that appear in a target region must specify an
     // allocator clause unless a requires directive with the dynamic_allocators
     // clause is present in the same compilation unit.
-    if (LangOpts.OpenMPIsTargetDevice &&
+    if (getLangOpts().OpenMPIsTargetDevice &&
         !DSAStack->hasRequiresDeclWithClause<OMPDynamicAllocatorsClause>())
-      targetDiag(Loc, diag::err_expected_allocator_clause);
+      SemaRef.targetDiag(Loc, diag::err_expected_allocator_clause);
   } else {
     for (const OMPClause *C : Clauses)
       if (const auto *AC = dyn_cast<OMPAllocatorClause>(C))
@@ -3420,7 +3431,7 @@ Sema::ActOnOpenMPAllocateDirective(SourceLocation Loc, ArrayRef<Expr *> VarList,
         llvm_unreachable("Unexpected clause on allocate directive");
   }
   OMPAllocateDeclAttr::AllocatorTypeTy AllocatorKind =
-      getAllocatorKind(*this, DSAStack, Allocator);
+      getAllocatorKind(SemaRef, DSAStack, Allocator);
   SmallVector<Expr *, 8> Vars;
   for (Expr *RefExpr : VarList) {
     auto *DE = cast<DeclRefExpr>(RefExpr);
@@ -3435,7 +3446,7 @@ Sema::ActOnOpenMPAllocateDirective(SourceLocation Loc, ArrayRef<Expr *> VarList,
 
     // If the used several times in the allocate directive, the same allocator
     // must be used.
-    if (checkPreviousOMPAllocateAttribute(*this, DSAStack, RefExpr, VD,
+    if (checkPreviousOMPAllocateAttribute(SemaRef, DSAStack, RefExpr, VD,
                                           AllocatorKind, Allocator))
       continue;
 
@@ -3448,7 +3459,7 @@ Sema::ActOnOpenMPAllocateDirective(SourceLocation Loc, ArrayRef<Expr *> VarList,
         Diag(Allocator->getExprLoc(),
              diag::err_omp_expected_predefined_allocator)
             << Allocator->getSourceRange();
-        bool IsDecl = VD->isThisDeclarationADefinition(Context) ==
+        bool IsDecl = VD->isThisDeclarationADefinition(getASTContext()) ==
                       VarDecl::DeclarationOnly;
         Diag(VD->getLocation(),
              IsDecl ? diag::note_previous_decl : diag::note_defined_here)
@@ -3458,45 +3469,46 @@ Sema::ActOnOpenMPAllocateDirective(SourceLocation Loc, ArrayRef<Expr *> VarList,
     }
 
     Vars.push_back(RefExpr);
-    applyOMPAllocateAttribute(*this, VD, AllocatorKind, Allocator, Alignment,
+    applyOMPAllocateAttribute(SemaRef, VD, AllocatorKind, Allocator, Alignment,
                               DE->getSourceRange());
   }
   if (Vars.empty())
     return nullptr;
   if (!Owner)
-    Owner = getCurLexicalContext();
-  auto *D = OMPAllocateDecl::Create(Context, Owner, Loc, Vars, Clauses);
+    Owner = SemaRef.getCurLexicalContext();
+  auto *D = OMPAllocateDecl::Create(getASTContext(), Owner, Loc, Vars, Clauses);
   D->setAccess(AS_public);
   Owner->addDecl(D);
   return DeclGroupPtrTy::make(DeclGroupRef(D));
 }
 
-Sema::DeclGroupPtrTy
-Sema::ActOnOpenMPRequiresDirective(SourceLocation Loc,
-                                   ArrayRef<OMPClause *> ClauseList) {
+SemaOpenMP::DeclGroupPtrTy
+SemaOpenMP::ActOnOpenMPRequiresDirective(SourceLocation Loc,
+                                         ArrayRef<OMPClause *> ClauseList) {
   OMPRequiresDecl *D = nullptr;
-  if (!CurContext->isFileContext()) {
+  if (!SemaRef.CurContext->isFileContext()) {
     Diag(Loc, diag::err_omp_invalid_scope) << "requires";
   } else {
     D = CheckOMPRequiresDecl(Loc, ClauseList);
     if (D) {
-      CurContext->addDecl(D);
+      SemaRef.CurContext->addDecl(D);
       DSAStack->addRequiresDecl(D);
     }
   }
   return DeclGroupPtrTy::make(DeclGroupRef(D));
 }
 
-void Sema::ActOnOpenMPAssumesDirective(SourceLocation Loc,
-                                       OpenMPDirectiveKind DKind,
-                                       ArrayRef<std::string> Assumptions,
-                                       bool SkippedClauses) {
+void SemaOpenMP::ActOnOpenMPAssumesDirective(SourceLocation Loc,
+                                             OpenMPDirectiveKind DKind,
+                                             ArrayRef<std::string> Assumptions,
+                                             bool SkippedClauses) {
   if (!SkippedClauses && Assumptions.empty())
     Diag(Loc, diag::err_omp_no_clause_for_directive)
         << llvm::omp::getAllAssumeClauseOptions()
         << llvm::omp::getOpenMPDirectiveName(DKind);
 
-  auto *AA = OMPAssumeAttr::Create(Context, llvm::join(Assumptions, ","), Loc);
+  auto *AA =
+      OMPAssumeAttr::Create(getASTContext(), llvm::join(Assumptions, ","), Loc);
   if (DKind == llvm::omp::Directive::OMPD_begin_assumes) {
     OMPAssumeScoped.push_back(AA);
     return;
@@ -3515,7 +3527,7 @@ void Sema::ActOnOpenMPAssumesDirective(SourceLocation Loc,
   // declarations in included headers. To this end, we traverse all existing
   // declaration contexts and annotate function declarations here.
   SmallVector<DeclContext *, 8> DeclContexts;
-  auto *Ctx = CurContext;
+  auto *Ctx = SemaRef.CurContext;
   while (Ctx->getLexicalParent())
     Ctx = Ctx->getLexicalParent();
   DeclContexts.push_back(Ctx);
@@ -3539,13 +3551,14 @@ void Sema::ActOnOpenMPAssumesDirective(SourceLocation Loc,
   }
 }
 
-void Sema::ActOnOpenMPEndAssumesDirective() {
+void SemaOpenMP::ActOnOpenMPEndAssumesDirective() {
   assert(isInOpenMPAssumeScope() && "Not in OpenMP assumes scope!");
   OMPAssumeScoped.pop_back();
 }
 
-OMPRequiresDecl *Sema::CheckOMPRequiresDecl(SourceLocation Loc,
-                                            ArrayRef<OMPClause *> ClauseList) {
+OMPRequiresDecl *
+SemaOpenMP::CheckOMPRequiresDecl(SourceLocation Loc,
+                                 ArrayRef<OMPClause *> ClauseList) {
   /// For target specific clauses, the requires directive cannot be
   /// specified after the handling of any of the target regions in the
   /// current compilation unit.
@@ -3576,8 +3589,8 @@ OMPRequiresDecl *Sema::CheckOMPRequiresDecl(SourceLocation Loc,
   }
 
   if (!DSAStack->hasDuplicateRequiresClause(ClauseList))
-    return OMPRequiresDecl::Create(Context, getCurLexicalContext(), Loc,
-                                   ClauseList);
+    return OMPRequiresDecl::Create(
+        getASTContext(), SemaRef.getCurLexicalContext(), Loc, ClauseList);
   return nullptr;
 }
 
@@ -3695,7 +3708,7 @@ class DSAAttrChecker final : public StmtVisitor<DSAAttrChecker, void> {
   llvm::SmallVector<Expr *, 4> ImplicitMap[DefaultmapKindNum][OMPC_MAP_delete];
   llvm::SmallVector<OpenMPMapModifierKind, NumberOfOMPMapClauseModifiers>
       ImplicitMapModifier[DefaultmapKindNum];
-  Sema::VarsWithInheritedDSAType VarsWithInheritedDSA;
+  SemaOpenMP::VarsWithInheritedDSAType VarsWithInheritedDSA;
   llvm::SmallDenseSet<const ValueDecl *, 4> ImplicitDeclarations;
 
   void VisitSubCaptures(OMPExecutableDirective *S) {
@@ -4161,7 +4174,7 @@ public:
   getImplicitMapModifier(OpenMPDefaultmapClauseKind Kind) const {
     return ImplicitMapModifier[Kind];
   }
-  const Sema::VarsWithInheritedDSAType &getVarsWithInheritedDSA() const {
+  const SemaOpenMP::VarsWithInheritedDSAType &getVarsWithInheritedDSA() const {
     return VarsWithInheritedDSA;
   }
 
@@ -4193,7 +4206,9 @@ static void handleDeclareVariantConstructTrait(DSAStackTy *Stack,
   Stack->handleConstructTrait(Traits, ScopeEntry);
 }
 
-void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
+void SemaOpenMP::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind,
+                                        Scope *CurScope) {
+  ASTContext &Context = getASTContext();
   switch (DKind) {
   case OMPD_parallel:
   case OMPD_parallel_for:
@@ -4208,13 +4223,13 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
     QualType KmpInt32Ty = Context.getIntTypeForBitwidth(32, 1).withConst();
     QualType KmpInt32PtrTy =
         Context.getPointerType(KmpInt32Ty).withConst().withRestrict();
-    Sema::CapturedParamNameType Params[] = {
+    SemaOpenMP::CapturedParamNameType Params[] = {
         std::make_pair(".global_tid.", KmpInt32PtrTy),
         std::make_pair(".bound_tid.", KmpInt32PtrTy),
         std::make_pair(StringRef(), QualType()) // __context with shared vars
     };
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             Params);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, Params);
     break;
   }
   case OMPD_target_teams:
@@ -4232,7 +4247,7 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
     FunctionProtoType::ExtProtoInfo EPI;
     EPI.Variadic = true;
     QualType CopyFnType = Context.getFunctionType(Context.VoidTy, Args, EPI);
-    Sema::CapturedParamNameType Params[] = {
+    SemaOpenMP::CapturedParamNameType Params[] = {
         std::make_pair(".global_tid.", KmpInt32Ty),
         std::make_pair(".part_id.", KmpInt32PtrTy),
         std::make_pair(".privates.", VoidPtrTy),
@@ -4242,31 +4257,33 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
         std::make_pair(".task_t.", Context.VoidPtrTy.withConst()),
         std::make_pair(StringRef(), QualType()) // __context with shared vars
     };
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             Params, /*OpenMPCaptureLevel=*/0);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, Params,
+                                     /*OpenMPCaptureLevel=*/0);
     // Mark this captured region as inlined, because we don't use outlined
     // function directly.
-    getCurCapturedRegion()->TheCapturedDecl->addAttr(
+    SemaRef.getCurCapturedRegion()->TheCapturedDecl->addAttr(
         AlwaysInlineAttr::CreateImplicit(
             Context, {}, AlwaysInlineAttr::Keyword_forceinline));
-    SmallVector<Sema::CapturedParamNameType, 2> ParamsTarget;
+    SmallVector<SemaOpenMP::CapturedParamNameType, 2> ParamsTarget;
     if (getLangOpts().OpenMPIsTargetDevice)
       ParamsTarget.push_back(std::make_pair(StringRef("dyn_ptr"), VoidPtrTy));
     ParamsTarget.push_back(
         std::make_pair(StringRef(), QualType())); // __context with shared vars;
     // Start a captured region for 'target' with no implicit parameters.
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             ParamsTarget,
-                             /*OpenMPCaptureLevel=*/1);
-    Sema::CapturedParamNameType ParamsTeamsOrParallel[] = {
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, ParamsTarget,
+                                     /*OpenMPCaptureLevel=*/1);
+    SemaOpenMP::CapturedParamNameType ParamsTeamsOrParallel[] = {
         std::make_pair(".global_tid.", KmpInt32PtrTy),
         std::make_pair(".bound_tid.", KmpInt32PtrTy),
         std::make_pair(StringRef(), QualType()) // __context with shared vars
     };
     // Start a captured region for 'teams' or 'parallel'.  Both regions have
     // the same implicit parameters.
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             ParamsTeamsOrParallel, /*OpenMPCaptureLevel=*/2);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, ParamsTeamsOrParallel,
+                                     /*OpenMPCaptureLevel=*/2);
     break;
   }
   case OMPD_target:
@@ -4279,7 +4296,7 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
     FunctionProtoType::ExtProtoInfo EPI;
     EPI.Variadic = true;
     QualType CopyFnType = Context.getFunctionType(Context.VoidTy, Args, EPI);
-    Sema::CapturedParamNameType Params[] = {
+    SemaOpenMP::CapturedParamNameType Params[] = {
         std::make_pair(".global_tid.", KmpInt32Ty),
         std::make_pair(".part_id.", KmpInt32PtrTy),
         std::make_pair(".privates.", VoidPtrTy),
@@ -4289,21 +4306,22 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
         std::make_pair(".task_t.", Context.VoidPtrTy.withConst()),
         std::make_pair(StringRef(), QualType()) // __context with shared vars
     };
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             Params, /*OpenMPCaptureLevel=*/0);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, Params,
+                                     /*OpenMPCaptureLevel=*/0);
     // Mark this captured region as inlined, because we don't use outlined
     // function directly.
-    getCurCapturedRegion()->TheCapturedDecl->addAttr(
+    SemaRef.getCurCapturedRegion()->TheCapturedDecl->addAttr(
         AlwaysInlineAttr::CreateImplicit(
             Context, {}, AlwaysInlineAttr::Keyword_forceinline));
-    SmallVector<Sema::CapturedParamNameType, 2> ParamsTarget;
+    SmallVector<SemaOpenMP::CapturedParamNameType, 2> ParamsTarget;
     if (getLangOpts().OpenMPIsTargetDevice)
       ParamsTarget.push_back(std::make_pair(StringRef("dyn_ptr"), VoidPtrTy));
     ParamsTarget.push_back(
         std::make_pair(StringRef(), QualType())); // __context with shared vars;
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             ParamsTarget,
-                             /*OpenMPCaptureLevel=*/1);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, ParamsTarget,
+                                     /*OpenMPCaptureLevel=*/1);
     break;
   }
   case OMPD_atomic:
@@ -4329,11 +4347,11 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
   case OMPD_scope:
   case OMPD_target_data:
   case OMPD_dispatch: {
-    Sema::CapturedParamNameType Params[] = {
+    SemaOpenMP::CapturedParamNameType Params[] = {
         std::make_pair(StringRef(), QualType()) // __context with shared vars
     };
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             Params);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, Params);
     break;
   }
   case OMPD_task: {
@@ -4345,7 +4363,7 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
     FunctionProtoType::ExtProtoInfo EPI;
     EPI.Variadic = true;
     QualType CopyFnType = Context.getFunctionType(Context.VoidTy, Args, EPI);
-    Sema::CapturedParamNameType Params[] = {
+    SemaOpenMP::CapturedParamNameType Params[] = {
         std::make_pair(".global_tid.", KmpInt32Ty),
         std::make_pair(".part_id.", KmpInt32PtrTy),
         std::make_pair(".privates.", VoidPtrTy),
@@ -4355,11 +4373,11 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
         std::make_pair(".task_t.", Context.VoidPtrTy.withConst()),
         std::make_pair(StringRef(), QualType()) // __context with shared vars
     };
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             Params);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, Params);
     // Mark this captured region as inlined, because we don't use outlined
     // function directly.
-    getCurCapturedRegion()->TheCapturedDecl->addAttr(
+    SemaRef.getCurCapturedRegion()->TheCapturedDecl->addAttr(
         AlwaysInlineAttr::CreateImplicit(
             Context, {}, AlwaysInlineAttr::Keyword_forceinline));
     break;
@@ -4386,7 +4404,7 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
     FunctionProtoType::ExtProtoInfo EPI;
     EPI.Variadic = true;
     QualType CopyFnType = Context.getFunctionType(Context.VoidTy, Args, EPI);
-    Sema::CapturedParamNameType Params[] = {
+    SemaOpenMP::CapturedParamNameType Params[] = {
         std::make_pair(".global_tid.", KmpInt32Ty),
         std::make_pair(".part_id.", KmpInt32PtrTy),
         std::make_pair(".privates.", VoidPtrTy),
@@ -4401,11 +4419,11 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
         std::make_pair(".reductions.", VoidPtrTy),
         std::make_pair(StringRef(), QualType()) // __context with shared vars
     };
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             Params);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, Params);
     // Mark this captured region as inlined, because we don't use outlined
     // function directly.
-    getCurCapturedRegion()->TheCapturedDecl->addAttr(
+    SemaRef.getCurCapturedRegion()->TheCapturedDecl->addAttr(
         AlwaysInlineAttr::CreateImplicit(
             Context, {}, AlwaysInlineAttr::Keyword_forceinline));
     break;
@@ -4426,19 +4444,20 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
     QualType VoidPtrTy = Context.VoidPtrTy.withConst().withRestrict();
     QualType KmpInt32PtrTy =
         Context.getPointerType(KmpInt32Ty).withConst().withRestrict();
-    Sema::CapturedParamNameType ParamsParallel[] = {
+    SemaOpenMP::CapturedParamNameType ParamsParallel[] = {
         std::make_pair(".global_tid.", KmpInt32PtrTy),
         std::make_pair(".bound_tid.", KmpInt32PtrTy),
         std::make_pair(StringRef(), QualType()) // __context with shared vars
     };
     // Start a captured region for 'parallel'.
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             ParamsParallel, /*OpenMPCaptureLevel=*/0);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, ParamsParallel,
+                                     /*OpenMPCaptureLevel=*/0);
     QualType Args[] = {VoidPtrTy};
     FunctionProtoType::ExtProtoInfo EPI;
     EPI.Variadic = true;
     QualType CopyFnType = Context.getFunctionType(Context.VoidTy, Args, EPI);
-    Sema::CapturedParamNameType Params[] = {
+    SemaOpenMP::CapturedParamNameType Params[] = {
         std::make_pair(".global_tid.", KmpInt32Ty),
         std::make_pair(".part_id.", KmpInt32PtrTy),
         std::make_pair(".privates.", VoidPtrTy),
@@ -4453,11 +4472,12 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
         std::make_pair(".reductions.", VoidPtrTy),
         std::make_pair(StringRef(), QualType()) // __context with shared vars
     };
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             Params, /*OpenMPCaptureLevel=*/1);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, Params,
+                                     /*OpenMPCaptureLevel=*/1);
     // Mark this captured region as inlined, because we don't use outlined
     // function directly.
-    getCurCapturedRegion()->TheCapturedDecl->addAttr(
+    SemaRef.getCurCapturedRegion()->TheCapturedDecl->addAttr(
         AlwaysInlineAttr::CreateImplicit(
             Context, {}, AlwaysInlineAttr::Keyword_forceinline));
     break;
@@ -4467,15 +4487,15 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
     QualType KmpInt32Ty = Context.getIntTypeForBitwidth(32, 1).withConst();
     QualType KmpInt32PtrTy =
         Context.getPointerType(KmpInt32Ty).withConst().withRestrict();
-    Sema::CapturedParamNameType Params[] = {
+    SemaOpenMP::CapturedParamNameType Params[] = {
         std::make_pair(".global_tid.", KmpInt32PtrTy),
         std::make_pair(".bound_tid.", KmpInt32PtrTy),
         std::make_pair(".previous.lb.", Context.getSizeType().withConst()),
         std::make_pair(".previous.ub.", Context.getSizeType().withConst()),
         std::make_pair(StringRef(), QualType()) // __context with shared vars
     };
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             Params);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, Params);
     break;
   }
   // For 'target teams loop', collect all captured regions so codegen can
@@ -4492,7 +4512,7 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
     FunctionProtoType::ExtProtoInfo EPI;
     EPI.Variadic = true;
     QualType CopyFnType = Context.getFunctionType(Context.VoidTy, Args, EPI);
-    Sema::CapturedParamNameType Params[] = {
+    SemaOpenMP::CapturedParamNameType Params[] = {
         std::make_pair(".global_tid.", KmpInt32Ty),
         std::make_pair(".part_id.", KmpInt32PtrTy),
         std::make_pair(".privates.", VoidPtrTy),
@@ -4502,32 +4522,35 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
         std::make_pair(".task_t.", Context.VoidPtrTy.withConst()),
         std::make_pair(StringRef(), QualType()) // __context with shared vars
     };
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             Params, /*OpenMPCaptureLevel=*/0);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, Params,
+                                     /*OpenMPCaptureLevel=*/0);
     // Mark this captured region as inlined, because we don't use outlined
     // function directly.
-    getCurCapturedRegion()->TheCapturedDecl->addAttr(
+    SemaRef.getCurCapturedRegion()->TheCapturedDecl->addAttr(
         AlwaysInlineAttr::CreateImplicit(
             Context, {}, AlwaysInlineAttr::Keyword_forceinline));
-    SmallVector<Sema::CapturedParamNameType, 2> ParamsTarget;
+    SmallVector<SemaOpenMP::CapturedParamNameType, 2> ParamsTarget;
     if (getLangOpts().OpenMPIsTargetDevice)
       ParamsTarget.push_back(std::make_pair(StringRef("dyn_ptr"), VoidPtrTy));
     ParamsTarget.push_back(
         std::make_pair(StringRef(), QualType())); // __context with shared vars;
     // Start a captured region for 'target' with no implicit parameters.
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             ParamsTarget, /*OpenMPCaptureLevel=*/1);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, ParamsTarget,
+                                     /*OpenMPCaptureLevel=*/1);
 
-    Sema::CapturedParamNameType ParamsTeams[] = {
+    SemaOpenMP::CapturedParamNameType ParamsTeams[] = {
         std::make_pair(".global_tid.", KmpInt32PtrTy),
         std::make_pair(".bound_tid.", KmpInt32PtrTy),
         std::make_pair(StringRef(), QualType()) // __context with shared vars
     };
     // Start a captured region for 'target' with no implicit parameters.
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             ParamsTeams, /*OpenMPCaptureLevel=*/2);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, ParamsTeams,
+                                     /*OpenMPCaptureLevel=*/2);
 
-    Sema::CapturedParamNameType ParamsParallel[] = {
+    SemaOpenMP::CapturedParamNameType ParamsParallel[] = {
         std::make_pair(".global_tid.", KmpInt32PtrTy),
         std::make_pair(".bound_tid.", KmpInt32PtrTy),
         std::make_pair(".previous.lb.", Context.getSizeType().withConst()),
@@ -4536,8 +4559,9 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
     };
     // Start a captured region for 'teams' or 'parallel'.  Both regions have
     // the same implicit parameters.
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             ParamsParallel, /*OpenMPCaptureLevel=*/3);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, ParamsParallel,
+                                     /*OpenMPCaptureLevel=*/3);
     break;
   }
 
@@ -4548,16 +4572,17 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
     QualType KmpInt32PtrTy =
         Context.getPointerType(KmpInt32Ty).withConst().withRestrict();
 
-    Sema::CapturedParamNameType ParamsTeams[] = {
+    SemaOpenMP::CapturedParamNameType ParamsTeams[] = {
         std::make_pair(".global_tid.", KmpInt32PtrTy),
         std::make_pair(".bound_tid.", KmpInt32PtrTy),
         std::make_pair(StringRef(), QualType()) // __context with shared vars
     };
     // Start a captured region for 'target' with no implicit parameters.
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             ParamsTeams, /*OpenMPCaptureLevel=*/0);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, ParamsTeams,
+                                     /*OpenMPCaptureLevel=*/0);
 
-    Sema::CapturedParamNameType ParamsParallel[] = {
+    SemaOpenMP::CapturedParamNameType ParamsParallel[] = {
         std::make_pair(".global_tid.", KmpInt32PtrTy),
         std::make_pair(".bound_tid.", KmpInt32PtrTy),
         std::make_pair(".previous.lb.", Context.getSizeType().withConst()),
@@ -4566,8 +4591,9 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
     };
     // Start a captured region for 'teams' or 'parallel'.  Both regions have
     // the same implicit parameters.
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             ParamsParallel, /*OpenMPCaptureLevel=*/1);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, ParamsParallel,
+                                     /*OpenMPCaptureLevel=*/1);
     break;
   }
   case OMPD_target_update:
@@ -4581,7 +4607,7 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
     FunctionProtoType::ExtProtoInfo EPI;
     EPI.Variadic = true;
     QualType CopyFnType = Context.getFunctionType(Context.VoidTy, Args, EPI);
-    Sema::CapturedParamNameType Params[] = {
+    SemaOpenMP::CapturedParamNameType Params[] = {
         std::make_pair(".global_tid.", KmpInt32Ty),
         std::make_pair(".part_id.", KmpInt32PtrTy),
         std::make_pair(".privates.", VoidPtrTy),
@@ -4591,11 +4617,11 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
         std::make_pair(".task_t.", Context.VoidPtrTy.withConst()),
         std::make_pair(StringRef(), QualType()) // __context with shared vars
     };
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             Params);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, Params);
     // Mark this captured region as inlined, because we don't use outlined
     // function directly.
-    getCurCapturedRegion()->TheCapturedDecl->addAttr(
+    SemaRef.getCurCapturedRegion()->TheCapturedDecl->addAttr(
         AlwaysInlineAttr::CreateImplicit(
             Context, {}, AlwaysInlineAttr::Keyword_forceinline));
     break;
@@ -4626,15 +4652,15 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
   default:
     llvm_unreachable("Unknown OpenMP directive");
   }
-  DSAStack->setContext(CurContext);
+  DSAStack->setContext(SemaRef.CurContext);
   handleDeclareVariantConstructTrait(DSAStack, DKind, /* ScopeEntry */ true);
 }
 
-int Sema::getNumberOfConstructScopes(unsigned Level) const {
+int SemaOpenMP::getNumberOfConstructScopes(unsigned Level) const {
   return getOpenMPCaptureLevels(DSAStack->getDirective(Level));
 }
 
-int Sema::getOpenMPCaptureLevels(OpenMPDirectiveKind DKind) {
+int SemaOpenMP::getOpenMPCaptureLevels(OpenMPDirectiveKind DKind) {
   SmallVector<OpenMPDirectiveKind, 4> CaptureRegions;
   getOpenMPCaptureRegions(CaptureRegions, DKind);
   return CaptureRegions.size();
@@ -4674,7 +4700,7 @@ static OMPCapturedExprDecl *buildCaptureDecl(Sema &S, IdentifierInfo *Id,
 static DeclRefExpr *buildCapture(Sema &S, ValueDecl *D, Expr *CaptureExpr,
                                  bool WithInit) {
   OMPCapturedExprDecl *CD;
-  if (VarDecl *VD = S.isOpenMPCapturedDecl(D))
+  if (VarDecl *VD = S.OpenMP().isOpenMPCapturedDecl(D))
     CD = cast<OMPCapturedExprDecl>(VD);
   else
     CD = buildCaptureDecl(S, D->getIdentifier(), CaptureExpr, WithInit,
@@ -4726,7 +4752,7 @@ public:
       : S(S), ErrorFound(ErrorFound), DKind(DKind) {}
   ~CaptureRegionUnwinderRAII() {
     if (ErrorFound) {
-      int ThisCaptureLevel = S.getOpenMPCaptureLevels(DKind);
+      int ThisCaptureLevel = S.OpenMP().getOpenMPCaptureLevels(DKind);
       while (--ThisCaptureLevel >= 0)
         S.ActOnCapturedRegionError();
     }
@@ -4734,10 +4760,10 @@ public:
 };
 } // namespace
 
-void Sema::tryCaptureOpenMPLambdas(ValueDecl *V) {
+void SemaOpenMP::tryCaptureOpenMPLambdas(ValueDecl *V) {
   // Capture variables captured by reference in lambdas for target-based
   // directives.
-  if (!CurContext->isDependentContext() &&
+  if (!SemaRef.CurContext->isDependentContext() &&
       (isOpenMPTargetExecutionDirective(DSAStack->getCurrentDirective()) ||
        isOpenMPTargetDataManagementDirective(
            DSAStack->getCurrentDirective()))) {
@@ -4757,14 +4783,14 @@ void Sema::tryCaptureOpenMPLambdas(ValueDecl *V) {
           if (LC.getCaptureKind() == LCK_ByRef) {
             VarDecl *VD = cast<VarDecl>(LC.getCapturedVar());
             DeclContext *VDC = VD->getDeclContext();
-            if (!VDC->Encloses(CurContext))
+            if (!VDC->Encloses(SemaRef.CurContext))
               continue;
-            MarkVariableReferenced(LC.getLocation(), VD);
+            SemaRef.MarkVariableReferenced(LC.getLocation(), VD);
           } else if (LC.getCaptureKind() == LCK_This) {
-            QualType ThisTy = getCurrentThisType();
-            if (!ThisTy.isNull() &&
-                Context.typesAreCompatible(ThisTy, ThisCapture->getType()))
-              CheckCXXThisCapture(LC.getLocation());
+            QualType ThisTy = SemaRef.getCurrentThisType();
+            if (!ThisTy.isNull() && getASTContext().typesAreCompatible(
+                                        ThisTy, ThisCapture->getType()))
+              SemaRef.CheckCXXThisCapture(LC.getLocation());
           }
         }
       }
@@ -4804,8 +4830,8 @@ static bool checkOrderedOrderSpecified(Sema &S,
   return false;
 }
 
-StmtResult Sema::ActOnOpenMPRegionEnd(StmtResult S,
-                                      ArrayRef<OMPClause *> Clauses) {
+StmtResult SemaOpenMP::ActOnOpenMPRegionEnd(StmtResult S,
+                                            ArrayRef<OMPClause *> Clauses) {
   handleDeclareVariantConstructTrait(DSAStack, DSAStack->getCurrentDirective(),
                                      /* ScopeEntry */ false);
   if (DSAStack->getCurrentDirective() == OMPD_atomic ||
@@ -4817,7 +4843,7 @@ StmtResult Sema::ActOnOpenMPRegionEnd(StmtResult S,
 
   bool ErrorFound = false;
   CaptureRegionUnwinderRAII CaptureRegionUnwinder(
-      *this, ErrorFound, DSAStack->getCurrentDirective());
+      SemaRef, ErrorFound, DSAStack->getCurrentDirective());
   if (!S.isUsable()) {
     ErrorFound = true;
     return StmtError();
@@ -4831,7 +4857,7 @@ StmtResult Sema::ActOnOpenMPRegionEnd(StmtResult S,
   SmallVector<const OMPClauseWithPreInit *, 4> PICs;
   // This is required for proper codegen.
   for (OMPClause *Clause : Clauses) {
-    if (!LangOpts.OpenMPSimd &&
+    if (!getLangOpts().OpenMPSimd &&
         (isOpenMPTaskingDirective(DSAStack->getCurrentDirective()) ||
          DSAStack->getCurrentDirective() == OMPD_target) &&
         Clause->getClauseKind() == OMPC_in_reduction) {
@@ -4840,7 +4866,7 @@ StmtResult Sema::ActOnOpenMPRegionEnd(StmtResult S,
       auto *IRC = cast<OMPInReductionClause>(Clause);
       for (Expr *E : IRC->taskgroup_descriptors())
         if (E)
-          MarkDeclarationsReferencedInExpr(E);
+          SemaRef.MarkDeclarationsReferencedInExpr(E);
     }
     if (isOpenMPPrivate(Clause->getClauseKind()) ||
         Clause->getClauseKind() == OMPC_copyprivate ||
@@ -4851,7 +4877,7 @@ StmtResult Sema::ActOnOpenMPRegionEnd(StmtResult S,
       // Mark all variables in private list clauses as used in inner region.
       for (Stmt *VarRef : Clause->children()) {
         if (auto *E = cast_or_null<Expr>(VarRef)) {
-          MarkDeclarationsReferencedInExpr(E);
+          SemaRef.MarkDeclarationsReferencedInExpr(E);
         }
       }
       DSAStack->setForceVarCapturing(/*V=*/false);
@@ -4865,7 +4891,7 @@ StmtResult Sema::ActOnOpenMPRegionEnd(StmtResult S,
         PICs.push_back(C);
       if (auto *C = OMPClauseWithPostUpdate::get(Clause)) {
         if (Expr *E = C->getPostUpdateExpr())
-          MarkDeclarationsReferencedInExpr(E);
+          SemaRef.MarkDeclarationsReferencedInExpr(E);
       }
     }
     if (Clause->getClauseKind() == OMPC_schedule)
@@ -4877,7 +4903,7 @@ StmtResult Sema::ActOnOpenMPRegionEnd(StmtResult S,
   }
   // Capture allocator expressions if used.
   for (Expr *E : DSAStack->getInnerAllocators())
-    MarkDeclarationsReferencedInExpr(E);
+    SemaRef.MarkDeclarationsReferencedInExpr(E);
   // OpenMP, 2.7.1 Loop Construct, Restrictions
   // The nonmonotonic modifier cannot be specified if an ordered clause is
   // specified.
@@ -4899,7 +4925,7 @@ StmtResult Sema::ActOnOpenMPRegionEnd(StmtResult S,
   // OpenMP 5.0, 2.9.2 Worksharing-Loop Construct, Restrictions.
   // If an order(concurrent) clause is present, an ordered clause may not appear
   // on the same directive.
-  if (checkOrderedOrderSpecified(*this, Clauses))
+  if (checkOrderedOrderSpecified(SemaRef, Clauses))
     ErrorFound = true;
   if (!LCs.empty() && OC && OC->getNumForLoops()) {
     for (const OMPLinearClause *C : LCs) {
@@ -4936,7 +4962,8 @@ StmtResult Sema::ActOnOpenMPRegionEnd(StmtResult S,
             CaptureRegion == OMPD_unknown) {
           if (auto *DS = cast_or_null<DeclStmt>(C->getPreInitStmt())) {
             for (Decl *D : DS->decls())
-              MarkVariableReferenced(D->getLocation(), cast<VarDecl>(D));
+              SemaRef.MarkVariableReferenced(D->getLocation(),
+                                             cast<VarDecl>(D));
           }
         }
       }
@@ -4950,7 +4977,7 @@ StmtResult Sema::ActOnOpenMPRegionEnd(StmtResult S,
                ++I) {
             OMPUsesAllocatorsClause::Data D = UAC->getAllocatorData(I);
             if (Expr *E = D.AllocatorTraits)
-              MarkDeclarationsReferencedInExpr(E);
+              SemaRef.MarkDeclarationsReferencedInExpr(E);
           }
           continue;
         }
@@ -4965,17 +4992,17 @@ StmtResult Sema::ActOnOpenMPRegionEnd(StmtResult S,
             continue;
           for (Expr *E : RC->copy_array_temps())
             if (E)
-              MarkDeclarationsReferencedInExpr(E);
+              SemaRef.MarkDeclarationsReferencedInExpr(E);
         }
         if (auto *AC = dyn_cast<OMPAlignedClause>(C)) {
           for (Expr *E : AC->varlists())
-            MarkDeclarationsReferencedInExpr(E);
+            SemaRef.MarkDeclarationsReferencedInExpr(E);
         }
       }
     }
     if (++CompletedRegions == CaptureRegions.size())
       DSAStack->setBodyComplete();
-    SR = ActOnCapturedRegionEnd(SR.get());
+    SR = SemaRef.ActOnCapturedRegionEnd(SR.get());
   }
   return SR;
 }
@@ -5782,9 +5809,9 @@ static CapturedStmt *buildLoopVarFunc(Sema &Actions, QualType LoopVarTy,
   // the OpenMPIRBuilder to know additional C/C++ semantics, such as how to
   // invoke a copy constructor.
   QualType TargetParamTy = Ctx.getLValueReferenceType(LoopVarTy);
-  Sema::CapturedParamNameType Params[] = {{"LoopVar", TargetParamTy},
-                                          {"Logical", LogicalTy},
-                                          {StringRef(), QualType()}};
+  SemaOpenMP::CapturedParamNameType Params[] = {{"LoopVar", TargetParamTy},
+                                                {"Logical", LogicalTy},
+                                                {StringRef(), QualType()}};
   Actions.ActOnCapturedRegionStart({}, nullptr, CR_Default, Params);
 
   // Capture the initial iterator which represents the LoopVar value at the
@@ -5835,7 +5862,7 @@ static CapturedStmt *buildLoopVarFunc(Sema &Actions, QualType LoopVarTy,
       AssertSuccess(Actions.ActOnCapturedRegionEnd(Body)));
 }
 
-StmtResult Sema::ActOnOpenMPCanonicalLoop(Stmt *AStmt) {
+StmtResult SemaOpenMP::ActOnOpenMPCanonicalLoop(Stmt *AStmt) {
   ASTContext &Ctx = getASTContext();
 
   // Extract the common elements of ForStmt and CXXForRangeStmt:
@@ -5946,8 +5973,8 @@ StmtResult Sema::ActOnOpenMPCanonicalLoop(Stmt *AStmt) {
     if (IncBin->getOpcode() == BO_AddAssign) {
       Step = IncBin->getRHS();
     } else if (IncBin->getOpcode() == BO_SubAssign) {
-      Step =
-          AssertSuccess(BuildUnaryOp(nullptr, {}, UO_Minus, IncBin->getRHS()));
+      Step = AssertSuccess(
+          SemaRef.BuildUnaryOp(nullptr, {}, UO_Minus, IncBin->getRHS()));
     } else
       llvm_unreachable("unhandled binary increment operator");
   } else if (auto *CondCXXOp = dyn_cast<CXXOperatorCallExpr>(Inc)) {
@@ -5965,7 +5992,7 @@ StmtResult Sema::ActOnOpenMPCanonicalLoop(Stmt *AStmt) {
       break;
     case OO_MinusEqual:
       Step = AssertSuccess(
-          BuildUnaryOp(nullptr, {}, UO_Minus, CondCXXOp->getArg(1)));
+          SemaRef.BuildUnaryOp(nullptr, {}, UO_Minus, CondCXXOp->getArg(1)));
       break;
     default:
       llvm_unreachable("unhandled overloaded increment operator");
@@ -5974,16 +6001,17 @@ StmtResult Sema::ActOnOpenMPCanonicalLoop(Stmt *AStmt) {
     llvm_unreachable("unknown increment expression");
 
   CapturedStmt *DistanceFunc =
-      buildDistanceFunc(*this, LogicalTy, CondRel, LHS, RHS, Step);
+      buildDistanceFunc(SemaRef, LogicalTy, CondRel, LHS, RHS, Step);
   CapturedStmt *LoopVarFunc = buildLoopVarFunc(
-      *this, LVTy, LogicalTy, CounterRef, Step, isa<CXXForRangeStmt>(AStmt));
-  DeclRefExpr *LVRef = BuildDeclRefExpr(LUVDecl, LUVDecl->getType(), VK_LValue,
-                                        {}, nullptr, nullptr, {}, nullptr);
+      SemaRef, LVTy, LogicalTy, CounterRef, Step, isa<CXXForRangeStmt>(AStmt));
+  DeclRefExpr *LVRef =
+      SemaRef.BuildDeclRefExpr(LUVDecl, LUVDecl->getType(), VK_LValue, {},
+                               nullptr, nullptr, {}, nullptr);
   return OMPCanonicalLoop::create(getASTContext(), AStmt, DistanceFunc,
                                   LoopVarFunc, LVRef);
 }
 
-StmtResult Sema::ActOnOpenMPLoopnest(Stmt *AStmt) {
+StmtResult SemaOpenMP::ActOnOpenMPLoopnest(Stmt *AStmt) {
   // Handle a literal loop.
   if (isa<ForStmt>(AStmt) || isa<CXXForRangeStmt>(AStmt))
     return ActOnOpenMPCanonicalLoop(AStmt);
@@ -6128,7 +6156,7 @@ processImplicitMapsWithDefaultMappers(Sema &S, DSAStackTy *Stack,
       continue;
     CXXScopeSpec MapperIdScopeSpec;
     DeclarationNameInfo MapperId;
-    if (OMPClause *NewClause = S.ActOnOpenMPMapClause(
+    if (OMPClause *NewClause = S.OpenMP().ActOnOpenMPMapClause(
             nullptr, C->getMapTypeModifiers(), C->getMapTypeModifiersLoc(),
             MapperIdScopeSpec, MapperId, C->getMapType(),
             /*IsMapTypeImplicit=*/true, SourceLocation(), SourceLocation(),
@@ -6210,14 +6238,12 @@ static bool teamsLoopCanBeParallelFor(Stmt *AStmt, Sema &SemaRef) {
   return Checker.teamsLoopCanBeParallelFor();
 }
 
-bool Sema::mapLoopConstruct(llvm::SmallVector<OMPClause *> &ClausesWithoutBind,
-                            ArrayRef<OMPClause *> Clauses,
-                            OpenMPBindClauseKind &BindKind,
-                            OpenMPDirectiveKind &Kind,
-                            OpenMPDirectiveKind &PrevMappedDirective,
-                            SourceLocation StartLoc, SourceLocation EndLoc,
-                            const DeclarationNameInfo &DirName,
-                            OpenMPDirectiveKind CancelRegion) {
+bool SemaOpenMP::mapLoopConstruct(
+    llvm::SmallVector<OMPClause *> &ClausesWithoutBind,
+    ArrayRef<OMPClause *> Clauses, OpenMPBindClauseKind &BindKind,
+    OpenMPDirectiveKind &Kind, OpenMPDirectiveKind &PrevMappedDirective,
+    SourceLocation StartLoc, SourceLocation EndLoc,
+    const DeclarationNameInfo &DirName, OpenMPDirectiveKind CancelRegion) {
 
   bool UseClausesWithoutBind = false;
 
@@ -6299,7 +6325,7 @@ bool Sema::mapLoopConstruct(llvm::SmallVector<OMPClause *> &ClausesWithoutBind,
   return UseClausesWithoutBind;
 }
 
-StmtResult Sema::ActOnOpenMPExecutableDirective(
+StmtResult SemaOpenMP::ActOnOpenMPExecutableDirective(
     OpenMPDirectiveKind Kind, const DeclarationNameInfo &DirName,
     OpenMPDirectiveKind CancelRegion, ArrayRef<OMPClause *> Clauses,
     Stmt *AStmt, SourceLocation StartLoc, SourceLocation EndLoc,
@@ -6324,8 +6350,8 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
   }
 
   // First check CancelRegion which is then used in checkNestingOfRegions.
-  if (checkCancelRegion(*this, Kind, CancelRegion, StartLoc) ||
-      checkNestingOfRegions(*this, DSAStack, DK, DirName, CancelRegion,
+  if (checkCancelRegion(SemaRef, Kind, CancelRegion, StartLoc) ||
+      checkNestingOfRegions(SemaRef, DSAStack, DK, DirName, CancelRegion,
                             BindKind, StartLoc)) {
     return StmtError();
   }
@@ -6344,13 +6370,14 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
   } else {
     ClausesWithImplicit.append(Clauses.begin(), Clauses.end());
   }
-  if (AStmt && !CurContext->isDependentContext() && Kind != OMPD_atomic &&
-      Kind != OMPD_critical && Kind != OMPD_section && Kind != OMPD_master &&
-      Kind != OMPD_masked && !isOpenMPLoopTransformationDirective(Kind)) {
+  if (AStmt && !SemaRef.CurContext->isDependentContext() &&
+      Kind != OMPD_atomic && Kind != OMPD_critical && Kind != OMPD_section &&
+      Kind != OMPD_master && Kind != OMPD_masked &&
+      !isOpenMPLoopTransformationDirective(Kind)) {
     assert(isa<CapturedStmt>(AStmt) && "Captured statement expected");
 
     // Check default data sharing attributes for referenced variables.
-    DSAAttrChecker DSAChecker(DSAStack, *this, cast<CapturedStmt>(AStmt));
+    DSAAttrChecker DSAChecker(DSAStack, SemaRef, cast<CapturedStmt>(AStmt));
     int ThisCaptureLevel = getOpenMPCaptureLevels(Kind);
     Stmt *S = AStmt;
     while (--ThisCaptureLevel >= 0)
@@ -6490,8 +6517,8 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
     }
     // Build expressions for implicit maps of data members with 'default'
     // mappers.
-    if (LangOpts.OpenMP >= 50)
-      processImplicitMapsWithDefaultMappers(*this, DSAStack,
+    if (getLangOpts().OpenMP >= 50)
+      processImplicitMapsWithDefaultMappers(SemaRef, DSAStack,
                                             ClausesWithImplicit);
   }
 
@@ -6505,7 +6532,7 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
   case OMPD_simd:
     Res = ActOnOpenMPSimdDirective(ClausesWithImplicit, AStmt, StartLoc, EndLoc,
                                    VarsWithInheritedDSA);
-    if (LangOpts.OpenMP >= 50)
+    if (getLangOpts().OpenMP >= 50)
       AllowedNameModifiers.push_back(OMPD_simd);
     break;
   case OMPD_tile:
@@ -6523,7 +6550,7 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
   case OMPD_for_simd:
     Res = ActOnOpenMPForSimdDirective(ClausesWithImplicit, AStmt, StartLoc,
                                       EndLoc, VarsWithInheritedDSA);
-    if (LangOpts.OpenMP >= 50)
+    if (getLangOpts().OpenMP >= 50)
       AllowedNameModifiers.push_back(OMPD_simd);
     break;
   case OMPD_sections:
@@ -6561,7 +6588,7 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
     Res = ActOnOpenMPParallelForSimdDirective(
         ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
     AllowedNameModifiers.push_back(OMPD_parallel);
-    if (LangOpts.OpenMP >= 50)
+    if (getLangOpts().OpenMP >= 50)
       AllowedNameModifiers.push_back(OMPD_simd);
     break;
   case OMPD_scope:
@@ -6698,7 +6725,7 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
     Res = ActOnOpenMPTaskLoopSimdDirective(ClausesWithImplicit, AStmt, StartLoc,
                                            EndLoc, VarsWithInheritedDSA);
     AllowedNameModifiers.push_back(OMPD_taskloop);
-    if (LangOpts.OpenMP >= 50)
+    if (getLangOpts().OpenMP >= 50)
       AllowedNameModifiers.push_back(OMPD_simd);
     break;
   case OMPD_master_taskloop:
@@ -6715,13 +6742,13 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
     Res = ActOnOpenMPMasterTaskLoopSimdDirective(
         ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
     AllowedNameModifiers.push_back(OMPD_taskloop);
-    if (LangOpts.OpenMP >= 50)
+    if (getLangOpts().OpenMP >= 50)
       AllowedNameModifiers.push_back(OMPD_simd);
     break;
   case OMPD_masked_taskloop_simd:
     Res = ActOnOpenMPMaskedTaskLoopSimdDirective(
         ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
-    if (LangOpts.OpenMP >= 51) {
+    if (getLangOpts().OpenMP >= 51) {
       AllowedNameModifiers.push_back(OMPD_taskloop);
       AllowedNameModifiers.push_back(OMPD_simd);
     }
@@ -6735,7 +6762,7 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
   case OMPD_parallel_masked_taskloop:
     Res = ActOnOpenMPParallelMaskedTaskLoopDirective(
         ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
-    if (LangOpts.OpenMP >= 51) {
+    if (getLangOpts().OpenMP >= 51) {
       AllowedNameModifiers.push_back(OMPD_taskloop);
       AllowedNameModifiers.push_back(OMPD_parallel);
     }
@@ -6745,13 +6772,13 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
         ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
     AllowedNameModifiers.push_back(OMPD_taskloop);
     AllowedNameModifiers.push_back(OMPD_parallel);
-    if (LangOpts.OpenMP >= 50)
+    if (getLangOpts().OpenMP >= 50)
       AllowedNameModifiers.push_back(OMPD_simd);
     break;
   case OMPD_parallel_masked_taskloop_simd:
     Res = ActOnOpenMPParallelMaskedTaskLoopSimdDirective(
         ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
-    if (LangOpts.OpenMP >= 51) {
+    if (getLangOpts().OpenMP >= 51) {
       AllowedNameModifiers.push_back(OMPD_taskloop);
       AllowedNameModifiers.push_back(OMPD_parallel);
       AllowedNameModifiers.push_back(OMPD_simd);
@@ -6775,13 +6802,13 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
     Res = ActOnOpenMPDistributeParallelForSimdDirective(
         ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
     AllowedNameModifiers.push_back(OMPD_parallel);
-    if (LangOpts.OpenMP >= 50)
+    if (getLangOpts().OpenMP >= 50)
       AllowedNameModifiers.push_back(OMPD_simd);
     break;
   case OMPD_distribute_simd:
     Res = ActOnOpenMPDistributeSimdDirective(
         ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
-    if (LangOpts.OpenMP >= 50)
+    if (getLangOpts().OpenMP >= 50)
       AllowedNameModifiers.push_back(OMPD_simd);
     break;
   case OMPD_target_parallel_for_simd:
@@ -6789,14 +6816,14 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
         ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
     AllowedNameModifiers.push_back(OMPD_target);
     AllowedNameModifiers.push_back(OMPD_parallel);
-    if (LangOpts.OpenMP >= 50)
+    if (getLangOpts().OpenMP >= 50)
       AllowedNameModifiers.push_back(OMPD_simd);
     break;
   case OMPD_target_simd:
     Res = ActOnOpenMPTargetSimdDirective(ClausesWithImplicit, AStmt, StartLoc,
                                          EndLoc, VarsWithInheritedDSA);
     AllowedNameModifiers.push_back(OMPD_target);
-    if (LangOpts.OpenMP >= 50)
+    if (getLangOpts().OpenMP >= 50)
       AllowedNameModifiers.push_back(OMPD_simd);
     break;
   case OMPD_teams_distribute:
@@ -6806,14 +6833,14 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
   case OMPD_teams_distribute_simd:
     Res = ActOnOpenMPTeamsDistributeSimdDirective(
         ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
-    if (LangOpts.OpenMP >= 50)
+    if (getLangOpts().OpenMP >= 50)
       AllowedNameModifiers.push_back(OMPD_simd);
     break;
   case OMPD_teams_distribute_parallel_for_simd:
     Res = ActOnOpenMPTeamsDistributeParallelForSimdDirective(
         ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
     AllowedNameModifiers.push_back(OMPD_parallel);
-    if (LangOpts.OpenMP >= 50)
+    if (getLangOpts().OpenMP >= 50)
       AllowedNameModifiers.push_back(OMPD_simd);
     break;
   case OMPD_teams_distribute_parallel_for:
@@ -6842,14 +6869,14 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
         ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
     AllowedNameModifiers.push_back(OMPD_target);
     AllowedNameModifiers.push_back(OMPD_parallel);
-    if (LangOpts.OpenMP >= 50)
+    if (getLangOpts().OpenMP >= 50)
       AllowedNameModifiers.push_back(OMPD_simd);
     break;
   case OMPD_target_teams_distribute_simd:
     Res = ActOnOpenMPTargetTeamsDistributeSimdDirective(
         ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
     AllowedNameModifiers.push_back(OMPD_target);
-    if (LangOpts.OpenMP >= 50)
+    if (getLangOpts().OpenMP >= 50)
       AllowedNameModifiers.push_back(OMPD_simd);
     break;
   case OMPD_interop:
@@ -6906,7 +6933,7 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
   if (DSAStack->getDefaultDSA() == DSA_none ||
       DSAStack->getDefaultDSA() == DSA_private ||
       DSAStack->getDefaultDSA() == DSA_firstprivate) {
-    DSAAttrChecker DSAChecker(DSAStack, *this, nullptr);
+    DSAAttrChecker DSAChecker(DSAStack, SemaRef, nullptr);
     for (OMPClause *C : Clauses) {
       switch (C->getClauseKind()) {
       case OMPC_num_threads:
@@ -7043,13 +7070,13 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
   }
 
   if (!AllowedNameModifiers.empty())
-    ErrorFound = checkIfClauses(*this, Kind, Clauses, AllowedNameModifiers) ||
+    ErrorFound = checkIfClauses(SemaRef, Kind, Clauses, AllowedNameModifiers) ||
                  ErrorFound;
 
   if (ErrorFound)
     return StmtError();
 
-  if (!CurContext->isDependentContext() &&
+  if (!SemaRef.CurContext->isDependentContext() &&
       isOpenMPTargetExecutionDirective(Kind) &&
       !(DSAStack->hasRequiresDeclWithClause<OMPUnifiedSharedMemoryClause>() ||
         DSAStack->hasRequiresDeclWithClause<OMPUnifiedAddressClause>() ||
@@ -7062,7 +7089,7 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
   return Res;
 }
 
-Sema::DeclGroupPtrTy Sema::ActOnOpenMPDeclareSimdDirective(
+SemaOpenMP::DeclGroupPtrTy SemaOpenMP::ActOnOpenMPDeclareSimdDirective(
     DeclGroupPtrTy DG, OMPDeclareSimdDeclAttr::BranchStateTy BS, Expr *Simdlen,
     ArrayRef<Expr *> Uniforms, ArrayRef<Expr *> Aligneds,
     ArrayRef<Expr *> Alignments, ArrayRef<Expr *> Linears,
@@ -7297,13 +7324,15 @@ Sema::DeclGroupPtrTy Sema::ActOnOpenMPDeclareSimdDirective(
       NewStep = PerformOpenMPImplicitIntegerConversion(Step->getExprLoc(), Step)
                     .get();
       if (NewStep)
-        NewStep =
-            VerifyIntegerConstantExpression(NewStep, /*FIXME*/ AllowFold).get();
+        NewStep = SemaRef
+                      .VerifyIntegerConstantExpression(
+                          NewStep, /*FIXME*/ Sema::AllowFold)
+                      .get();
     }
     NewSteps.push_back(NewStep);
   }
   auto *NewAttr = OMPDeclareSimdDeclAttr::CreateImplicit(
-      Context, BS, SL.get(), const_cast<Expr **>(Uniforms.data()),
+      getASTContext(), BS, SL.get(), const_cast<Expr **>(Uniforms.data()),
       Uniforms.size(), const_cast<Expr **>(Aligneds.data()), Aligneds.size(),
       const_cast<Expr **>(NewAligns.data()), NewAligns.size(),
       const_cast<Expr **>(Linears.data()), Linears.size(),
@@ -7336,7 +7365,7 @@ static void setPrototype(Sema &S, FunctionDecl *FD, FunctionDecl *FDWithProto,
   FD->setParams(Params);
 }
 
-void Sema::ActOnFinishedFunctionDefinitionInOpenMPAssumeScope(Decl *D) {
+void SemaOpenMP::ActOnFinishedFunctionDefinitionInOpenMPAssumeScope(Decl *D) {
   if (D->isInvalidDecl())
     return;
   FunctionDecl *FD = nullptr;
@@ -7349,7 +7378,7 @@ void Sema::ActOnFinishedFunctionDefinitionInOpenMPAssumeScope(Decl *D) {
   // If we are instantiating templates we do *not* apply scoped assumptions but
   // only global ones. We apply scoped assumption to the template definition
   // though.
-  if (!inTemplateInstantiation()) {
+  if (!SemaRef.inTemplateInstantiation()) {
     for (OMPAssumeAttr *AA : OMPAssumeScoped)
       FD->addAttr(AA);
   }
@@ -7357,10 +7386,10 @@ void Sema::ActOnFinishedFunctionDefinitionInOpenMPAssumeScope(Decl *D) {
     FD->addAttr(AA);
 }
 
-Sema::OMPDeclareVariantScope::OMPDeclareVariantScope(OMPTraitInfo &TI)
+SemaOpenMP::OMPDeclareVariantScope::OMPDeclareVariantScope(OMPTraitInfo &TI)
     : TI(&TI), NameSuffix(TI.getMangledName()) {}
 
-void Sema::ActOnStartOfFunctionDefinitionInOpenMPDeclareVariantScope(
+void SemaOpenMP::ActOnStartOfFunctionDefinitionInOpenMPDeclareVariantScope(
     Scope *S, Declarator &D, MultiTemplateParamsArg TemplateParamLists,
     SmallVectorImpl<FunctionDecl *> &Bases) {
   if (!D.getIdentifier())
@@ -7376,11 +7405,11 @@ void Sema::ActOnStartOfFunctionDefinitionInOpenMPDeclareVariantScope(
     return;
 
   const IdentifierInfo *BaseII = D.getIdentifier();
-  LookupResult Lookup(*this, DeclarationName(BaseII), D.getIdentifierLoc(),
-                      LookupOrdinaryName);
-  LookupParsedName(Lookup, S, &D.getCXXScopeSpec());
+  LookupResult Lookup(SemaRef, DeclarationName(BaseII), D.getIdentifierLoc(),
+                      Sema::LookupOrdinaryName);
+  SemaRef.LookupParsedName(Lookup, S, &D.getCXXScopeSpec());
 
-  TypeSourceInfo *TInfo = GetTypeForDeclarator(D);
+  TypeSourceInfo *TInfo = SemaRef.GetTypeForDeclarator(D);
   QualType FType = TInfo->getType();
 
   bool IsConstexpr =
@@ -7409,7 +7438,7 @@ void Sema::ActOnStartOfFunctionDefinitionInOpenMPDeclareVariantScope(
 
     QualType UDeclTy = UDecl->getType();
     if (!UDeclTy->isDependentType()) {
-      QualType NewType = Context.mergeFunctionTypes(
+      QualType NewType = getASTContext().mergeFunctionTypes(
           FType, UDeclTy, /* OfBlockPointer */ false,
           /* Unqualified */ false, /* AllowCXX */ true);
       if (NewType.isNull())
@@ -7425,7 +7454,7 @@ void Sema::ActOnStartOfFunctionDefinitionInOpenMPDeclareVariantScope(
   // If no base was found we create a declaration that we use as base.
   if (Bases.empty() && UseImplicitBase) {
     D.setFunctionDefinitionKind(FunctionDefinitionKind::Declaration);
-    Decl *BaseD = HandleDeclarator(S, D, TemplateParamLists);
+    Decl *BaseD = SemaRef.HandleDeclarator(S, D, TemplateParamLists);
     BaseD->setImplicit(true);
     if (auto *BaseTemplD = dyn_cast<FunctionTemplateDecl>(BaseD))
       Bases.push_back(BaseTemplD->getTemplatedDecl());
@@ -7437,18 +7466,18 @@ void Sema::ActOnStartOfFunctionDefinitionInOpenMPDeclareVariantScope(
   MangledName += D.getIdentifier()->getName();
   MangledName += getOpenMPVariantManglingSeparatorStr();
   MangledName += DVScope.NameSuffix;
-  IdentifierInfo &VariantII = Context.Idents.get(MangledName);
+  IdentifierInfo &VariantII = getASTContext().Idents.get(MangledName);
 
   VariantII.setMangledOpenMPVariantName(true);
   D.SetIdentifier(&VariantII, D.getBeginLoc());
 }
 
-void Sema::ActOnFinishedFunctionDefinitionInOpenMPDeclareVariantScope(
+void SemaOpenMP::ActOnFinishedFunctionDefinitionInOpenMPDeclareVariantScope(
     Decl *D, SmallVectorImpl<FunctionDecl *> &Bases) {
   // Do not mark function as is used to prevent its emission if this is the
   // only place where it is used.
   EnterExpressionEvaluationContext Unevaluated(
-      *this, Sema::ExpressionEvaluationContext::Unevaluated);
+      SemaRef, Sema::ExpressionEvaluationContext::Unevaluated);
 
   FunctionDecl *FD = nullptr;
   if (auto *UTemplDecl = dyn_cast<FunctionTemplateDecl>(D))
@@ -7456,14 +7485,14 @@ void Sema::ActOnFinishedFunctionDefinitionInOpenMPDeclareVariantScope(
   else
     FD = cast<FunctionDecl>(D);
   auto *VariantFuncRef = DeclRefExpr::Create(
-      Context, NestedNameSpecifierLoc(), SourceLocation(), FD,
+      getASTContext(), NestedNameSpecifierLoc(), SourceLocation(), FD,
       /* RefersToEnclosingVariableOrCapture */ false,
       /* NameLoc */ FD->getLocation(), FD->getType(),
       ExprValueKind::VK_PRValue);
 
   OMPDeclareVariantScope &DVScope = OMPDeclareVariantScopes.back();
   auto *OMPDeclareVariantA = OMPDeclareVariantAttr::CreateImplicit(
-      Context, VariantFuncRef, DVScope.TI,
+      getASTContext(), VariantFuncRef, DVScope.TI,
       /*NothingArgs=*/nullptr, /*NothingArgsSize=*/0,
       /*NeedDevicePtrArgs=*/nullptr, /*NeedDevicePtrArgsSize=*/0,
       /*AppendArgs=*/nullptr, /*AppendArgsSize=*/0);
@@ -7471,10 +7500,11 @@ void Sema::ActOnFinishedFunctionDefinitionInOpenMPDeclareVariantScope(
     BaseFD->addAttr(OMPDeclareVariantA);
 }
 
-ExprResult Sema::ActOnOpenMPCall(ExprResult Call, Scope *Scope,
-                                 SourceLocation LParenLoc,
-                                 MultiExprArg ArgExprs,
-                                 SourceLocation RParenLoc, Expr *ExecConfig) {
+ExprResult SemaOpenMP::ActOnOpenMPCall(ExprResult Call, Scope *Scope,
+                                       SourceLocation LParenLoc,
+                                       MultiExprArg ArgExprs,
+                                       SourceLocation RParenLoc,
+                                       Expr *ExecConfig) {
   // The common case is a regular call we do not want to specialize at all. Try
   // to make that case fast by bailing early.
   CallExpr *CE = dyn_cast<CallExpr>(Call.get());
@@ -7485,7 +7515,7 @@ ExprResult Sema::ActOnOpenMPCall(ExprResult Call, Scope *Scope,
   if (!CalleeFnDecl)
     return Call;
 
-  if (LangOpts.OpenMP >= 51 && CalleeFnDecl->getIdentifier() &&
+  if (getLangOpts().OpenMP >= 51 && CalleeFnDecl->getIdentifier() &&
       CalleeFnDecl->getName().starts_with_insensitive("omp_")) {
     // checking for any calls inside an Order region
     if (Scope && Scope->isOpenMPOrderClauseScope())
@@ -7504,7 +7534,8 @@ ExprResult Sema::ActOnOpenMPCall(ExprResult Call, Scope *Scope,
         << ISATrait;
   };
   TargetOMPContext OMPCtx(Context, std::move(DiagUnknownTrait),
-                          getCurFunctionDecl(), DSAStack->getConstructTraits());
+                          SemaRef.getCurFunctionDecl(),
+                          DSAStack->getConstructTraits());
 
   QualType CalleeFnType = CalleeFnDecl->getType();
 
@@ -7549,7 +7580,7 @@ ExprResult Sema::ActOnOpenMPCall(ExprResult Call, Scope *Scope,
       // different type than the base function. This is intended and OK but if
       // we cannot create a call the difference is not in the "implementation
       // defined range" we allow.
-      Sema::TentativeAnalysisScope Trap(*this);
+      Sema::TentativeAnalysisScope Trap(SemaRef);
 
       if (auto *SpecializedMethod = dyn_cast<CXXMethodDecl>(BestDecl)) {
         auto *MemberCall = dyn_cast<CXXMemberCallExpr>(CE);
@@ -7558,12 +7589,12 @@ ExprResult Sema::ActOnOpenMPCall(ExprResult Call, Scope *Scope,
             /* IsArrow */ false, SpecializedMethod, Context.BoundMemberTy,
             MemberCall->getValueKind(), MemberCall->getObjectKind());
       }
-      NewCall = BuildCallExpr(Scope, BestExpr, LParenLoc, ArgExprs, RParenLoc,
-                              ExecConfig);
+      NewCall = SemaRef.BuildCallExpr(Scope, BestExpr, LParenLoc, ArgExprs,
+                                      RParenLoc, ExecConfig);
       if (NewCall.isUsable()) {
         if (CallExpr *NCE = dyn_cast<CallExpr>(NewCall.get())) {
           FunctionDecl *NewCalleeFnDecl = NCE->getDirectCallee();
-          QualType NewType = Context.mergeFunctionTypes(
+          QualType NewType = getASTContext().mergeFunctionTypes(
               CalleeFnType, NewCalleeFnDecl->getType(),
               /* OfBlockPointer */ false,
               /* Unqualified */ false, /* AllowCXX */ true);
@@ -7581,14 +7612,16 @@ ExprResult Sema::ActOnOpenMPCall(ExprResult Call, Scope *Scope,
 
   if (!NewCall.isUsable())
     return Call;
-  return PseudoObjectExpr::Create(Context, CE, {NewCall.get()}, 0);
+  return PseudoObjectExpr::Create(getASTContext(), CE, {NewCall.get()}, 0);
 }
 
 std::optional<std::pair<FunctionDecl *, Expr *>>
-Sema::checkOpenMPDeclareVariantFunction(Sema::DeclGroupPtrTy DG,
-                                        Expr *VariantRef, OMPTraitInfo &TI,
-                                        unsigned NumAppendArgs,
-                                        SourceRange SR) {
+SemaOpenMP::checkOpenMPDeclareVariantFunction(SemaOpenMP::DeclGroupPtrTy DG,
+                                              Expr *VariantRef,
+                                              OMPTraitInfo &TI,
+                                              unsigned NumAppendArgs,
+                                              SourceRange SR) {
+  ASTContext &Context = getASTContext();
   if (!DG || DG.get().isNull())
     return std::nullopt;
 
@@ -7631,7 +7664,7 @@ Sema::checkOpenMPDeclareVariantFunction(Sema::DeclGroupPtrTy DG,
   // Check if the function was emitted already.
   const FunctionDecl *Definition;
   if (!FD->isThisDeclarationADefinition() && FD->isDefined(Definition) &&
-      (LangOpts.EmitAllDecls || Context.DeclMustBeEmitted(Definition)))
+      (getLangOpts().EmitAllDecls || Context.DeclMustBeEmitted(Definition)))
     Diag(SR.getBegin(), diag::warn_omp_declare_variant_after_emitted)
         << FD->getLocation();
 
@@ -7654,7 +7687,7 @@ Sema::checkOpenMPDeclareVariantFunction(Sema::DeclGroupPtrTy DG,
   // Deal with non-constant score and user condition expressions.
   auto HandleNonConstantScoresAndConditions = [this](Expr *&E,
                                                      bool IsScore) -> bool {
-    if (!E || E->isIntegerConstantExpr(Context))
+    if (!E || E->isIntegerConstantExpr(getASTContext()))
       return false;
 
     if (IsScore) {
@@ -7686,9 +7719,9 @@ Sema::checkOpenMPDeclareVariantFunction(Sema::DeclGroupPtrTy DG,
     // Adjust the function type to account for an extra omp_interop_t for each
     // specified in the append_args clause.
     const TypeDecl *TD = nullptr;
-    LookupResult Result(*this, &Context.Idents.get("omp_interop_t"),
+    LookupResult Result(SemaRef, &Context.Idents.get("omp_interop_t"),
                         SR.getBegin(), Sema::LookupOrdinaryName);
-    if (LookupName(Result, getCurScope())) {
+    if (SemaRef.LookupName(Result, SemaRef.getCurScope())) {
       NamedDecl *ND = Result.getFoundDecl();
       TD = dyn_cast_or_null<TypeDecl>(ND);
     }
@@ -7711,7 +7744,7 @@ Sema::checkOpenMPDeclareVariantFunction(Sema::DeclGroupPtrTy DG,
   // Convert VariantRef expression to the type of the original function to
   // resolve possible conflicts.
   ExprResult VariantRefCast = VariantRef;
-  if (LangOpts.CPlusPlus) {
+  if (getLangOpts().CPlusPlus) {
     QualType FnPtrType;
     auto *Method = dyn_cast<CXXMethodDecl>(FD);
     if (Method && !Method->isStatic()) {
@@ -7722,9 +7755,9 @@ Sema::checkOpenMPDeclareVariantFunction(Sema::DeclGroupPtrTy DG,
       {
         // Build adrr_of unary op to correctly handle type checks for member
         // functions.
-        Sema::TentativeAnalysisScope Trap(*this);
-        ER = CreateBuiltinUnaryOp(VariantRef->getBeginLoc(), UO_AddrOf,
-                                  VariantRef);
+        Sema::TentativeAnalysisScope Trap(SemaRef);
+        ER = SemaRef.CreateBuiltinUnaryOp(VariantRef->getBeginLoc(), UO_AddrOf,
+                                          VariantRef);
       }
       if (!ER.isUsable()) {
         Diag(VariantRef->getExprLoc(), diag::err_omp_function_expected)
@@ -7737,9 +7770,9 @@ Sema::checkOpenMPDeclareVariantFunction(Sema::DeclGroupPtrTy DG,
     }
     QualType VarianPtrType = Context.getPointerType(VariantRef->getType());
     if (VarianPtrType.getUnqualifiedType() != FnPtrType.getUnqualifiedType()) {
-      ImplicitConversionSequence ICS = TryImplicitConversion(
+      ImplicitConversionSequence ICS = SemaRef.TryImplicitConversion(
           VariantRef, FnPtrType.getUnqualifiedType(),
-          /*SuppressUserConversions=*/false, AllowedExplicit::None,
+          /*SuppressUserConversions=*/false, Sema::AllowedExplicit::None,
           /*InOverloadResolution=*/false,
           /*CStyle=*/false,
           /*AllowObjCWritebackConversion=*/false);
@@ -7751,8 +7784,8 @@ Sema::checkOpenMPDeclareVariantFunction(Sema::DeclGroupPtrTy DG,
             << (NumAppendArgs ? 1 : 0) << VariantRef->getSourceRange();
         return std::nullopt;
       }
-      VariantRefCast = PerformImplicitConversion(
-          VariantRef, FnPtrType.getUnqualifiedType(), AA_Converting);
+      VariantRefCast = SemaRef.PerformImplicitConversion(
+          VariantRef, FnPtrType.getUnqualifiedType(), Sema::AA_Converting);
       if (!VariantRefCast.isUsable())
         return std::nullopt;
     }
@@ -7765,7 +7798,7 @@ Sema::checkOpenMPDeclareVariantFunction(Sema::DeclGroupPtrTy DG,
     }
   }
 
-  ExprResult ER = CheckPlaceholderExpr(VariantRefCast.get());
+  ExprResult ER = SemaRef.CheckPlaceholderExpr(VariantRefCast.get());
   if (!ER.isUsable() ||
       !ER.get()->IgnoreParenImpCasts()->getType()->isFunctionType()) {
     Diag(VariantRef->getExprLoc(), diag::err_omp_function_expected)
@@ -7795,7 +7828,7 @@ Sema::checkOpenMPDeclareVariantFunction(Sema::DeclGroupPtrTy DG,
   }
 
   // Check if function types are compatible in C.
-  if (!LangOpts.CPlusPlus) {
+  if (!getLangOpts().CPlusPlus) {
     QualType NewType =
         Context.mergeFunctionTypes(AdjustedFnType, NewFD->getType());
     if (NewType.isNull()) {
@@ -7807,9 +7840,9 @@ Sema::checkOpenMPDeclareVariantFunction(Sema::DeclGroupPtrTy DG,
     }
     if (NewType->isFunctionProtoType()) {
       if (FD->getType()->isFunctionNoProtoType())
-        setPrototype(*this, FD, NewFD, NewType);
+        setPrototype(SemaRef, FD, NewFD, NewType);
       else if (NewFD->getType()->isFunctionNoProtoType())
-        setPrototype(*this, NewFD, FD, NewType);
+        setPrototype(SemaRef, NewFD, FD, NewType);
     }
   }
 
@@ -7872,15 +7905,15 @@ Sema::checkOpenMPDeclareVariantFunction(Sema::DeclGroupPtrTy DG,
   }
 
   // Check general compatibility.
-  if (areMultiversionVariantFunctionsCompatible(
+  if (SemaRef.areMultiversionVariantFunctionsCompatible(
           FD, NewFD, PartialDiagnostic::NullDiagnostic(),
           PartialDiagnosticAt(SourceLocation(),
                               PartialDiagnostic::NullDiagnostic()),
           PartialDiagnosticAt(
               VariantRef->getExprLoc(),
-              PDiag(diag::err_omp_declare_variant_doesnt_support)),
+              SemaRef.PDiag(diag::err_omp_declare_variant_doesnt_support)),
           PartialDiagnosticAt(VariantRef->getExprLoc(),
-                              PDiag(diag::err_omp_declare_variant_diff)
+                              SemaRef.PDiag(diag::err_omp_declare_variant_diff)
                                   << FD->getLocation()),
           /*TemplatesSupported=*/true, /*ConstexprSupported=*/false,
           /*CLinkageMayDiffer=*/true))
@@ -7888,7 +7921,7 @@ Sema::checkOpenMPDeclareVariantFunction(Sema::DeclGroupPtrTy DG,
   return std::make_pair(FD, cast<Expr>(DRE));
 }
 
-void Sema::ActOnOpenMPDeclareVariantDirective(
+void SemaOpenMP::ActOnOpenMPDeclareVariantDirective(
     FunctionDecl *FD, Expr *VariantRef, OMPTraitInfo &TI,
     ArrayRef<Expr *> AdjustArgsNothing,
     ArrayRef<Expr *> AdjustArgsNeedDevicePtr,
@@ -7906,7 +7939,7 @@ void Sema::ActOnOpenMPDeclareVariantDirective(
 
   if (!AllAdjustArgs.empty() || !AppendArgs.empty()) {
     VariantMatchInfo VMI;
-    TI.getAsVariantMatchInfo(Context, VMI);
+    TI.getAsVariantMatchInfo(getASTContext(), VMI);
     if (!llvm::is_contained(
             VMI.ConstructTraits,
             llvm::omp::TraitProperty::construct_dispatch_dispatch)) {
@@ -7949,18 +7982,18 @@ void Sema::ActOnOpenMPDeclareVariantDirective(
   }
 
   auto *NewAttr = OMPDeclareVariantAttr::CreateImplicit(
-      Context, VariantRef, &TI, const_cast<Expr **>(AdjustArgsNothing.data()),
-      AdjustArgsNothing.size(),
+      getASTContext(), VariantRef, &TI,
+      const_cast<Expr **>(AdjustArgsNothing.data()), AdjustArgsNothing.size(),
       const_cast<Expr **>(AdjustArgsNeedDevicePtr.data()),
       AdjustArgsNeedDevicePtr.size(),
       const_cast<OMPInteropInfo *>(AppendArgs.data()), AppendArgs.size(), SR);
   FD->addAttr(NewAttr);
 }
 
-StmtResult Sema::ActOnOpenMPParallelDirective(ArrayRef<OMPClause *> Clauses,
-                                              Stmt *AStmt,
-                                              SourceLocation StartLoc,
-                                              SourceLocation EndLoc) {
+StmtResult
+SemaOpenMP::ActOnOpenMPParallelDirective(ArrayRef<OMPClause *> Clauses,
+                                         Stmt *AStmt, SourceLocation StartLoc,
+                                         SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
@@ -7972,11 +8005,11 @@ StmtResult Sema::ActOnOpenMPParallelDirective(ArrayRef<OMPClause *> Clauses,
   // longjmp() and throw() must not violate the entry/exit criteria.
   CS->getCapturedDecl()->setNothrow();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
-  return OMPParallelDirective::Create(Context, StartLoc, EndLoc, Clauses, AStmt,
-                                      DSAStack->getTaskgroupReductionRef(),
-                                      DSAStack->isCancelRegion());
+  return OMPParallelDirective::Create(
+      getASTContext(), StartLoc, EndLoc, Clauses, AStmt,
+      DSAStack->getTaskgroupReductionRef(), DSAStack->isCancelRegion());
 }
 
 namespace {
@@ -8226,7 +8259,7 @@ bool OpenMPIterationSpaceChecker::setStep(Expr *NewStep, bool Subtract) {
   if (!NewStep->isValueDependent()) {
     // Check that the step is integer expression.
     SourceLocation StepLoc = NewStep->getBeginLoc();
-    ExprResult Val = SemaRef.PerformOpenMPImplicitIntegerConversion(
+    ExprResult Val = SemaRef.OpenMP().PerformOpenMPImplicitIntegerConversion(
         StepLoc, getExprAsWritten(NewStep));
     if (Val.isInvalid())
       return true;
@@ -9248,7 +9281,7 @@ DeclRefExpr *OpenMPIterationSpaceChecker::buildCounterVar(
     DSAStackTy &DSA) const {
   auto *VD = dyn_cast<VarDecl>(LCDecl);
   if (!VD) {
-    VD = SemaRef.isOpenMPCapturedDecl(LCDecl);
+    VD = SemaRef.OpenMP().isOpenMPCapturedDecl(LCDecl);
     DeclRefExpr *Ref = buildDeclRefExpr(
         SemaRef, VD, VD->getType().getNonReferenceType(), DefaultLoc);
     const DSAStackTy::DSAVarData Data =
@@ -9321,14 +9354,15 @@ Expr *OpenMPIterationSpaceChecker::buildOrderedLoopData(
 }
 } // namespace
 
-void Sema::ActOnOpenMPLoopInitialization(SourceLocation ForLoc, Stmt *Init) {
+void SemaOpenMP::ActOnOpenMPLoopInitialization(SourceLocation ForLoc,
+                                               Stmt *Init) {
   assert(getLangOpts().OpenMP && "OpenMP is not active.");
   assert(Init && "Expected loop in canonical form.");
   unsigned AssociatedLoops = DSAStack->getAssociatedLoops();
   if (AssociatedLoops > 0 &&
       isOpenMPLoopDirective(DSAStack->getCurrentDirective())) {
     DSAStack->loopStart();
-    OpenMPIterationSpaceChecker ISC(*this, /*SupportsNonRectangular=*/true,
+    OpenMPIterationSpaceChecker ISC(SemaRef, /*SupportsNonRectangular=*/true,
                                     *DSAStack, ForLoc);
     if (!ISC.checkAndSetInit(Init, /*EmitDiags=*/false)) {
       if (ValueDecl *D = ISC.getLoopDecl()) {
@@ -9338,7 +9372,7 @@ void Sema::ActOnOpenMPLoopInitialization(SourceLocation ForLoc, Stmt *Init) {
           if (VarDecl *Private = isOpenMPCapturedDecl(D)) {
             VD = Private;
           } else {
-            PrivateRef = buildCapture(*this, D, ISC.getLoopDeclRefExpr(),
+            PrivateRef = buildCapture(SemaRef, D, ISC.getLoopDeclRefExpr(),
                                       /*WithInit=*/false);
             VD = cast<VarDecl>(PrivateRef->getDecl());
           }
@@ -9348,10 +9382,10 @@ void Sema::ActOnOpenMPLoopInitialization(SourceLocation ForLoc, Stmt *Init) {
         if (LD != D->getCanonicalDecl()) {
           DSAStack->resetPossibleLoopCounter();
           if (auto *Var = dyn_cast_or_null<VarDecl>(LD))
-            MarkDeclarationsReferencedInExpr(
-                buildDeclRefExpr(*this, const_cast<VarDecl *>(Var),
-                                 Var->getType().getNonLValueExprType(Context),
-                                 ForLoc, /*RefersToCapture=*/true));
+            SemaRef.MarkDeclarationsReferencedInExpr(buildDeclRefExpr(
+                SemaRef, const_cast<VarDecl *>(Var),
+                Var->getType().getNonLValueExprType(getASTContext()), ForLoc,
+                /*RefersToCapture=*/true));
         }
         OpenMPDirectiveKind DKind = DSAStack->getCurrentDirective();
         // OpenMP [2.14.1.1, Data-sharing Attribute Rules for Variables
@@ -9372,8 +9406,8 @@ void Sema::ActOnOpenMPLoopInitialization(SourceLocation ForLoc, Stmt *Init) {
                 : OMPC_private;
         if (((isOpenMPSimdDirective(DKind) && DVar.CKind != OMPC_unknown &&
               DVar.CKind != PredeterminedCKind && DVar.RefExpr &&
-              (LangOpts.OpenMP <= 45 || (DVar.CKind != OMPC_lastprivate &&
-                                         DVar.CKind != OMPC_private))) ||
+              (getLangOpts().OpenMP <= 45 || (DVar.CKind != OMPC_lastprivate &&
+                                              DVar.CKind != OMPC_private))) ||
              ((isOpenMPWorksharingDirective(DKind) || DKind == OMPD_taskloop ||
                DKind == OMPD_master_taskloop || DKind == OMPD_masked_taskloop ||
                DKind == OMPD_parallel_master_taskloop ||
@@ -9388,7 +9422,7 @@ void Sema::ActOnOpenMPLoopInitialization(SourceLocation ForLoc, Stmt *Init) {
               << getOpenMPClauseName(PredeterminedCKind);
           if (DVar.RefExpr == nullptr)
             DVar.CKind = PredeterminedCKind;
-          reportOriginalDsa(*this, DSAStack, D, DVar,
+          reportOriginalDsa(SemaRef, DSAStack, D, DVar,
                             /*IsLoopIterVar=*/true);
         } else if (LoopDeclRefExpr) {
           // Make the loop iteration variable private (for worksharing
@@ -9428,7 +9462,7 @@ static bool checkOpenMPIterationSpace(
     unsigned CurrentNestedLoopCount, unsigned NestedLoopCount,
     unsigned TotalNestedLoopCount, Expr *CollapseLoopCountExpr,
     Expr *OrderedLoopCountExpr,
-    Sema::VarsWithInheritedDSAType &VarsWithImplicitDSA,
+    SemaOpenMP::VarsWithInheritedDSAType &VarsWithImplicitDSA,
     llvm::MutableArrayRef<LoopIterationSpace> ResultIterSpaces,
     llvm::MapVector<const Expr *, DeclRefExpr *> &Captures) {
   bool SupportsNonRectangular = !isOpenMPLoopTransformationDirective(DKind);
@@ -9817,7 +9851,7 @@ static unsigned
 checkOpenMPLoop(OpenMPDirectiveKind DKind, Expr *CollapseLoopCountExpr,
                 Expr *OrderedLoopCountExpr, Stmt *AStmt, Sema &SemaRef,
                 DSAStackTy &DSA,
-                Sema::VarsWithInheritedDSAType &VarsWithImplicitDSA,
+                SemaOpenMP::VarsWithInheritedDSAType &VarsWithImplicitDSA,
                 OMPLoopBasedDirective::HelperExprs &Built) {
   unsigned NestedLoopCount = 1;
   bool SupportsNonPerfectlyNested = (SemaRef.LangOpts.OpenMP >= 50) &&
@@ -10566,7 +10600,8 @@ static bool checkGenericLoopLastprivate(Sema &S, ArrayRef<OMPClause *> Clauses,
                                         OpenMPDirectiveKind K,
                                         DSAStackTy *Stack);
 
-bool Sema::checkLastPrivateForMappedDirectives(ArrayRef<OMPClause *> Clauses) {
+bool SemaOpenMP::checkLastPrivateForMappedDirectives(
+    ArrayRef<OMPClause *> Clauses) {
 
   // Check for syntax of lastprivate
   // Param of the lastprivate have different meanings in the mapped directives
@@ -10574,16 +10609,15 @@ bool Sema::checkLastPrivateForMappedDirectives(ArrayRef<OMPClause *> Clauses) {
   //      "omp for"  lastprivate vars must be shared
   if (getLangOpts().OpenMP >= 50 &&
       DSAStack->getMappedDirective() == OMPD_loop &&
-      checkGenericLoopLastprivate(*this, Clauses, OMPD_loop, DSAStack)) {
+      checkGenericLoopLastprivate(SemaRef, Clauses, OMPD_loop, DSAStack)) {
     return false;
   }
   return true;
 }
 
-StmtResult
-Sema::ActOnOpenMPSimdDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
-                               SourceLocation StartLoc, SourceLocation EndLoc,
-                               VarsWithInheritedDSAType &VarsWithImplicitDSA) {
+StmtResult SemaOpenMP::ActOnOpenMPSimdDirective(
+    ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+    SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
     return StmtError();
 
@@ -10596,38 +10630,37 @@ Sema::ActOnOpenMPSimdDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_simd, getCollapseNumberExpr(Clauses), getOrderedNumberExpr(Clauses),
-      AStmt, *this, *DSAStack, VarsWithImplicitDSA, B);
+      AStmt, SemaRef, *DSAStack, VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp simd loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
 
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   auto *SimdDirective = OMPSimdDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
       DSAStack->getMappedDirective());
   return SimdDirective;
 }
 
-StmtResult
-Sema::ActOnOpenMPForDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
-                              SourceLocation StartLoc, SourceLocation EndLoc,
-                              VarsWithInheritedDSAType &VarsWithImplicitDSA) {
+StmtResult SemaOpenMP::ActOnOpenMPForDirective(
+    ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+    SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
     return StmtError();
 
@@ -10640,32 +10673,32 @@ Sema::ActOnOpenMPForDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_for, getCollapseNumberExpr(Clauses), getOrderedNumberExpr(Clauses),
-      AStmt, *this, *DSAStack, VarsWithImplicitDSA, B);
+      AStmt, SemaRef, *DSAStack, VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
 
   auto *ForDirective = OMPForDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
       DSAStack->getTaskgroupReductionRef(), DSAStack->isCancelRegion(),
       DSAStack->getMappedDirective());
   return ForDirective;
 }
 
-StmtResult Sema::ActOnOpenMPForSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPForSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -10677,37 +10710,37 @@ StmtResult Sema::ActOnOpenMPForSimdDirective(
   // define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_for_simd, getCollapseNumberExpr(Clauses),
-                      getOrderedNumberExpr(Clauses), AStmt, *this, *DSAStack,
+                      getOrderedNumberExpr(Clauses), AStmt, SemaRef, *DSAStack,
                       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for simd loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
 
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
-  return OMPForSimdDirective::Create(Context, StartLoc, EndLoc, NestedLoopCount,
-                                     Clauses, AStmt, B);
+  SemaRef.setFunctionHasBranchProtectedScope();
+  return OMPForSimdDirective::Create(getASTContext(), StartLoc, EndLoc,
+                                     NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPSectionsDirective(ArrayRef<OMPClause *> Clauses,
-                                              Stmt *AStmt,
-                                              SourceLocation StartLoc,
-                                              SourceLocation EndLoc) {
+StmtResult
+SemaOpenMP::ActOnOpenMPSectionsDirective(ArrayRef<OMPClause *> Clauses,
+                                         Stmt *AStmt, SourceLocation StartLoc,
+                                         SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
@@ -10736,23 +10769,23 @@ StmtResult Sema::ActOnOpenMPSectionsDirective(ArrayRef<OMPClause *> Clauses,
     return StmtError();
   }
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
-  return OMPSectionsDirective::Create(Context, StartLoc, EndLoc, Clauses, AStmt,
-                                      DSAStack->getTaskgroupReductionRef(),
-                                      DSAStack->isCancelRegion());
+  return OMPSectionsDirective::Create(
+      getASTContext(), StartLoc, EndLoc, Clauses, AStmt,
+      DSAStack->getTaskgroupReductionRef(), DSAStack->isCancelRegion());
 }
 
-StmtResult Sema::ActOnOpenMPSectionDirective(Stmt *AStmt,
-                                             SourceLocation StartLoc,
-                                             SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPSectionDirective(Stmt *AStmt,
+                                                   SourceLocation StartLoc,
+                                                   SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   DSAStack->setParentCancelRegion(DSAStack->isCancelRegion());
 
-  return OMPSectionDirective::Create(Context, StartLoc, EndLoc, AStmt,
+  return OMPSectionDirective::Create(getASTContext(), StartLoc, EndLoc, AStmt,
                                      DSAStack->isCancelRegion());
 }
 
@@ -10764,10 +10797,10 @@ static Expr *getDirectCallExpr(Expr *E) {
   return nullptr;
 }
 
-StmtResult Sema::ActOnOpenMPDispatchDirective(ArrayRef<OMPClause *> Clauses,
-                                              Stmt *AStmt,
-                                              SourceLocation StartLoc,
-                                              SourceLocation EndLoc) {
+StmtResult
+SemaOpenMP::ActOnOpenMPDispatchDirective(ArrayRef<OMPClause *> Clauses,
+                                         Stmt *AStmt, SourceLocation StartLoc,
+                                         SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
@@ -10780,7 +10813,7 @@ StmtResult Sema::ActOnOpenMPDispatchDirective(ArrayRef<OMPClause *> Clauses,
 
   SourceLocation TargetCallLoc;
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     Expr *TargetCall = nullptr;
 
     auto *E = dyn_cast<Expr>(S);
@@ -10808,10 +10841,10 @@ StmtResult Sema::ActOnOpenMPDispatchDirective(ArrayRef<OMPClause *> Clauses,
     TargetCallLoc = TargetCall->getExprLoc();
   }
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
-  return OMPDispatchDirective::Create(Context, StartLoc, EndLoc, Clauses, AStmt,
-                                      TargetCallLoc);
+  return OMPDispatchDirective::Create(getASTContext(), StartLoc, EndLoc,
+                                      Clauses, AStmt, TargetCallLoc);
 }
 
 static bool checkGenericLoopLastprivate(Sema &S, ArrayRef<OMPClause *> Clauses,
@@ -10839,7 +10872,7 @@ static bool checkGenericLoopLastprivate(Sema &S, ArrayRef<OMPClause *> Clauses,
   return ErrorFound;
 }
 
-StmtResult Sema::ActOnOpenMPGenericLoopDirective(
+StmtResult SemaOpenMP::ActOnOpenMPGenericLoopDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -10848,7 +10881,7 @@ StmtResult Sema::ActOnOpenMPGenericLoopDirective(
   // OpenMP 5.1 [2.11.7, loop construct, Restrictions]
   // A list item may not appear in a lastprivate clause unless it is the
   // loop iteration variable of a loop that is associated with the construct.
-  if (checkGenericLoopLastprivate(*this, Clauses, OMPD_loop, DSAStack))
+  if (checkGenericLoopLastprivate(SemaRef, Clauses, OMPD_loop, DSAStack))
     return StmtError();
 
   auto *CS = cast<CapturedStmt>(AStmt);
@@ -10863,19 +10896,19 @@ StmtResult Sema::ActOnOpenMPGenericLoopDirective(
   // In presence of clause 'collapse', it will define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_loop, getCollapseNumberExpr(Clauses), getOrderedNumberExpr(Clauses),
-      AStmt, *this, *DSAStack, VarsWithImplicitDSA, B);
+      AStmt, SemaRef, *DSAStack, VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp loop exprs were not built");
 
-  setFunctionHasBranchProtectedScope();
-  return OMPGenericLoopDirective::Create(Context, StartLoc, EndLoc,
+  SemaRef.setFunctionHasBranchProtectedScope();
+  return OMPGenericLoopDirective::Create(getASTContext(), StartLoc, EndLoc,
                                          NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPTeamsGenericLoopDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTeamsGenericLoopDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -10884,7 +10917,7 @@ StmtResult Sema::ActOnOpenMPTeamsGenericLoopDirective(
   // OpenMP 5.1 [2.11.7, loop construct, Restrictions]
   // A list item may not appear in a lastprivate clause unless it is the
   // loop iteration variable of a loop that is associated with the construct.
-  if (checkGenericLoopLastprivate(*this, Clauses, OMPD_teams_loop, DSAStack))
+  if (checkGenericLoopLastprivate(SemaRef, Clauses, OMPD_teams_loop, DSAStack))
     return StmtError();
 
   auto *CS = cast<CapturedStmt>(AStmt);
@@ -10909,22 +10942,22 @@ StmtResult Sema::ActOnOpenMPTeamsGenericLoopDirective(
   // In presence of clause 'collapse', it will define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_teams_loop, getCollapseNumberExpr(Clauses),
-                      /*OrderedLoopCountExpr=*/nullptr, CS, *this, *DSAStack,
+                      /*OrderedLoopCountExpr=*/nullptr, CS, SemaRef, *DSAStack,
                       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp loop exprs were not built");
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   DSAStack->setParentTeamsRegionLoc(StartLoc);
 
   return OMPTeamsGenericLoopDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPTargetTeamsGenericLoopDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTargetTeamsGenericLoopDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -10933,7 +10966,7 @@ StmtResult Sema::ActOnOpenMPTargetTeamsGenericLoopDirective(
   // OpenMP 5.1 [2.11.7, loop construct, Restrictions]
   // A list item may not appear in a lastprivate clause unless it is the
   // loop iteration variable of a loop that is associated with the construct.
-  if (checkGenericLoopLastprivate(*this, Clauses, OMPD_target_teams_loop,
+  if (checkGenericLoopLastprivate(SemaRef, Clauses, OMPD_target_teams_loop,
                                   DSAStack))
     return StmtError();
 
@@ -10959,22 +10992,22 @@ StmtResult Sema::ActOnOpenMPTargetTeamsGenericLoopDirective(
   // In presence of clause 'collapse', it will define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_target_teams_loop, getCollapseNumberExpr(Clauses),
-                      /*OrderedLoopCountExpr=*/nullptr, CS, *this, *DSAStack,
+                      /*OrderedLoopCountExpr=*/nullptr, CS, SemaRef, *DSAStack,
                       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp loop exprs were not built");
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   return OMPTargetTeamsGenericLoopDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
-      teamsLoopCanBeParallelFor(AStmt, *this));
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
+      teamsLoopCanBeParallelFor(AStmt, SemaRef));
 }
 
-StmtResult Sema::ActOnOpenMPParallelGenericLoopDirective(
+StmtResult SemaOpenMP::ActOnOpenMPParallelGenericLoopDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -10983,7 +11016,8 @@ StmtResult Sema::ActOnOpenMPParallelGenericLoopDirective(
   // OpenMP 5.1 [2.11.7, loop construct, Restrictions]
   // A list item may not appear in a lastprivate clause unless it is the
   // loop iteration variable of a loop that is associated with the construct.
-  if (checkGenericLoopLastprivate(*this, Clauses, OMPD_parallel_loop, DSAStack))
+  if (checkGenericLoopLastprivate(SemaRef, Clauses, OMPD_parallel_loop,
+                                  DSAStack))
     return StmtError();
 
   auto *CS = cast<CapturedStmt>(AStmt);
@@ -11008,21 +11042,21 @@ StmtResult Sema::ActOnOpenMPParallelGenericLoopDirective(
   // In presence of clause 'collapse', it will define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_parallel_loop, getCollapseNumberExpr(Clauses),
-                      /*OrderedLoopCountExpr=*/nullptr, CS, *this, *DSAStack,
+                      /*OrderedLoopCountExpr=*/nullptr, CS, SemaRef, *DSAStack,
                       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp loop exprs were not built");
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   return OMPParallelGenericLoopDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPTargetParallelGenericLoopDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTargetParallelGenericLoopDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -11031,7 +11065,7 @@ StmtResult Sema::ActOnOpenMPTargetParallelGenericLoopDirective(
   // OpenMP 5.1 [2.11.7, loop construct, Restrictions]
   // A list item may not appear in a lastprivate clause unless it is the
   // loop iteration variable of a loop that is associated with the construct.
-  if (checkGenericLoopLastprivate(*this, Clauses, OMPD_target_parallel_loop,
+  if (checkGenericLoopLastprivate(SemaRef, Clauses, OMPD_target_parallel_loop,
                                   DSAStack))
     return StmtError();
 
@@ -11057,30 +11091,30 @@ StmtResult Sema::ActOnOpenMPTargetParallelGenericLoopDirective(
   // In presence of clause 'collapse', it will define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_target_parallel_loop, getCollapseNumberExpr(Clauses),
-                      /*OrderedLoopCountExpr=*/nullptr, CS, *this, *DSAStack,
+                      /*OrderedLoopCountExpr=*/nullptr, CS, SemaRef, *DSAStack,
                       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp loop exprs were not built");
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   return OMPTargetParallelGenericLoopDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPSingleDirective(ArrayRef<OMPClause *> Clauses,
-                                            Stmt *AStmt,
-                                            SourceLocation StartLoc,
-                                            SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPSingleDirective(ArrayRef<OMPClause *> Clauses,
+                                                  Stmt *AStmt,
+                                                  SourceLocation StartLoc,
+                                                  SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
   assert(isa<CapturedStmt>(AStmt) && "Captured statement expected");
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   // OpenMP [2.7.3, single Construct, Restrictions]
   // The copyprivate clause must not be used with the nowait clause.
@@ -11099,33 +11133,35 @@ StmtResult Sema::ActOnOpenMPSingleDirective(ArrayRef<OMPClause *> Clauses,
     }
   }
 
-  return OMPSingleDirective::Create(Context, StartLoc, EndLoc, Clauses, AStmt);
+  return OMPSingleDirective::Create(getASTContext(), StartLoc, EndLoc, Clauses,
+                                    AStmt);
 }
 
-StmtResult Sema::ActOnOpenMPMasterDirective(Stmt *AStmt,
-                                            SourceLocation StartLoc,
-                                            SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPMasterDirective(Stmt *AStmt,
+                                                  SourceLocation StartLoc,
+                                                  SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
-  return OMPMasterDirective::Create(Context, StartLoc, EndLoc, AStmt);
+  return OMPMasterDirective::Create(getASTContext(), StartLoc, EndLoc, AStmt);
 }
 
-StmtResult Sema::ActOnOpenMPMaskedDirective(ArrayRef<OMPClause *> Clauses,
-                                            Stmt *AStmt,
-                                            SourceLocation StartLoc,
-                                            SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPMaskedDirective(ArrayRef<OMPClause *> Clauses,
+                                                  Stmt *AStmt,
+                                                  SourceLocation StartLoc,
+                                                  SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
-  return OMPMaskedDirective::Create(Context, StartLoc, EndLoc, Clauses, AStmt);
+  return OMPMaskedDirective::Create(getASTContext(), StartLoc, EndLoc, Clauses,
+                                    AStmt);
 }
 
-StmtResult Sema::ActOnOpenMPCriticalDirective(
+StmtResult SemaOpenMP::ActOnOpenMPCriticalDirective(
     const DeclarationNameInfo &DirName, ArrayRef<OMPClause *> Clauses,
     Stmt *AStmt, SourceLocation StartLoc, SourceLocation EndLoc) {
   if (!AStmt)
@@ -11146,7 +11182,7 @@ StmtResult Sema::ActOnOpenMPCriticalDirective(
           E->isInstantiationDependent()) {
         DependentHint = true;
       } else {
-        Hint = E->EvaluateKnownConstInt(Context);
+        Hint = E->EvaluateKnownConstInt(getASTContext());
         HintLoc = C->getBeginLoc();
       }
     }
@@ -11165,7 +11201,7 @@ StmtResult Sema::ActOnOpenMPCriticalDirective(
       if (const auto *C = Pair.first->getSingleClause<OMPHintClause>()) {
         Diag(C->getBeginLoc(), diag::note_omp_critical_hint_here)
             << 1
-            << toString(C->getHint()->EvaluateKnownConstInt(Context),
+            << toString(C->getHint()->EvaluateKnownConstInt(getASTContext()),
                         /*Radix=*/10, /*Signed=*/false);
       } else {
         Diag(Pair.first->getBeginLoc(), diag::note_omp_critical_no_hint) << 1;
@@ -11173,16 +11209,16 @@ StmtResult Sema::ActOnOpenMPCriticalDirective(
     }
   }
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
-  auto *Dir = OMPCriticalDirective::Create(Context, DirName, StartLoc, EndLoc,
-                                           Clauses, AStmt);
+  auto *Dir = OMPCriticalDirective::Create(getASTContext(), DirName, StartLoc,
+                                           EndLoc, Clauses, AStmt);
   if (!Pair.first && DirName.getName() && !DependentHint)
     DSAStack->addCriticalWithHint(Dir, Hint);
   return Dir;
 }
 
-StmtResult Sema::ActOnOpenMPParallelForDirective(
+StmtResult SemaOpenMP::ActOnOpenMPParallelForDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -11201,32 +11237,32 @@ StmtResult Sema::ActOnOpenMPParallelForDirective(
   // define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_parallel_for, getCollapseNumberExpr(Clauses),
-                      getOrderedNumberExpr(Clauses), AStmt, *this, *DSAStack,
+                      getOrderedNumberExpr(Clauses), AStmt, SemaRef, *DSAStack,
                       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp parallel for loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPParallelForDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
       DSAStack->getTaskgroupReductionRef(), DSAStack->isCancelRegion());
 }
 
-StmtResult Sema::ActOnOpenMPParallelForSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPParallelForSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -11245,34 +11281,33 @@ StmtResult Sema::ActOnOpenMPParallelForSimdDirective(
   // define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_parallel_for_simd, getCollapseNumberExpr(Clauses),
-                      getOrderedNumberExpr(Clauses), AStmt, *this, *DSAStack,
+                      getOrderedNumberExpr(Clauses), AStmt, SemaRef, *DSAStack,
                       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
 
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPParallelForSimdDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult
-Sema::ActOnOpenMPParallelMasterDirective(ArrayRef<OMPClause *> Clauses,
-                                         Stmt *AStmt, SourceLocation StartLoc,
-                                         SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPParallelMasterDirective(
+    ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+    SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
@@ -11285,17 +11320,16 @@ Sema::ActOnOpenMPParallelMasterDirective(ArrayRef<OMPClause *> Clauses,
   // longjmp() and throw() must not violate the entry/exit criteria.
   CS->getCapturedDecl()->setNothrow();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   return OMPParallelMasterDirective::Create(
-      Context, StartLoc, EndLoc, Clauses, AStmt,
+      getASTContext(), StartLoc, EndLoc, Clauses, AStmt,
       DSAStack->getTaskgroupReductionRef());
 }
 
-StmtResult
-Sema::ActOnOpenMPParallelMaskedDirective(ArrayRef<OMPClause *> Clauses,
-                                         Stmt *AStmt, SourceLocation StartLoc,
-                                         SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPParallelMaskedDirective(
+    ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+    SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
@@ -11308,17 +11342,16 @@ Sema::ActOnOpenMPParallelMaskedDirective(ArrayRef<OMPClause *> Clauses,
   // longjmp() and throw() must not violate the entry/exit criteria.
   CS->getCapturedDecl()->setNothrow();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   return OMPParallelMaskedDirective::Create(
-      Context, StartLoc, EndLoc, Clauses, AStmt,
+      getASTContext(), StartLoc, EndLoc, Clauses, AStmt,
       DSAStack->getTaskgroupReductionRef());
 }
 
-StmtResult
-Sema::ActOnOpenMPParallelSectionsDirective(ArrayRef<OMPClause *> Clauses,
-                                           Stmt *AStmt, SourceLocation StartLoc,
-                                           SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPParallelSectionsDirective(
+    ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+    SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
@@ -11348,10 +11381,10 @@ Sema::ActOnOpenMPParallelSectionsDirective(ArrayRef<OMPClause *> Clauses,
     return StmtError();
   }
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   return OMPParallelSectionsDirective::Create(
-      Context, StartLoc, EndLoc, Clauses, AStmt,
+      getASTContext(), StartLoc, EndLoc, Clauses, AStmt,
       DSAStack->getTaskgroupReductionRef(), DSAStack->isCancelRegion());
 }
 
@@ -11378,16 +11411,17 @@ static bool checkMutuallyExclusiveClauses(
   return ErrorFound;
 }
 
-StmtResult Sema::ActOnOpenMPTaskDirective(ArrayRef<OMPClause *> Clauses,
-                                          Stmt *AStmt, SourceLocation StartLoc,
-                                          SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPTaskDirective(ArrayRef<OMPClause *> Clauses,
+                                                Stmt *AStmt,
+                                                SourceLocation StartLoc,
+                                                SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
   // OpenMP 5.0, 2.10.1 task Construct
   // If a detach clause appears on the directive, then a mergeable clause cannot
   // appear on the same directive.
-  if (checkMutuallyExclusiveClauses(*this, Clauses,
+  if (checkMutuallyExclusiveClauses(SemaRef, Clauses,
                                     {OMPC_detach, OMPC_mergeable}))
     return StmtError();
 
@@ -11399,26 +11433,26 @@ StmtResult Sema::ActOnOpenMPTaskDirective(ArrayRef<OMPClause *> Clauses,
   // longjmp() and throw() must not violate the entry/exit criteria.
   CS->getCapturedDecl()->setNothrow();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
-  return OMPTaskDirective::Create(Context, StartLoc, EndLoc, Clauses, AStmt,
-                                  DSAStack->isCancelRegion());
+  return OMPTaskDirective::Create(getASTContext(), StartLoc, EndLoc, Clauses,
+                                  AStmt, DSAStack->isCancelRegion());
 }
 
-StmtResult Sema::ActOnOpenMPTaskyieldDirective(SourceLocation StartLoc,
-                                               SourceLocation EndLoc) {
-  return OMPTaskyieldDirective::Create(Context, StartLoc, EndLoc);
+StmtResult SemaOpenMP::ActOnOpenMPTaskyieldDirective(SourceLocation StartLoc,
+                                                     SourceLocation EndLoc) {
+  return OMPTaskyieldDirective::Create(getASTContext(), StartLoc, EndLoc);
 }
 
-StmtResult Sema::ActOnOpenMPBarrierDirective(SourceLocation StartLoc,
-                                             SourceLocation EndLoc) {
-  return OMPBarrierDirective::Create(Context, StartLoc, EndLoc);
+StmtResult SemaOpenMP::ActOnOpenMPBarrierDirective(SourceLocation StartLoc,
+                                                   SourceLocation EndLoc) {
+  return OMPBarrierDirective::Create(getASTContext(), StartLoc, EndLoc);
 }
 
-StmtResult Sema::ActOnOpenMPErrorDirective(ArrayRef<OMPClause *> Clauses,
-                                           SourceLocation StartLoc,
-                                           SourceLocation EndLoc,
-                                           bool InExContext) {
+StmtResult SemaOpenMP::ActOnOpenMPErrorDirective(ArrayRef<OMPClause *> Clauses,
+                                                 SourceLocation StartLoc,
+                                                 SourceLocation EndLoc,
+                                                 bool InExContext) {
   const OMPAtClause *AtC =
       OMPExecutableDirective::getSingleClause<OMPAtClause>(Clauses);
 
@@ -11443,12 +11477,13 @@ StmtResult Sema::ActOnOpenMPErrorDirective(ArrayRef<OMPClause *> Clauses,
     if (!SeverityC || SeverityC->getSeverityKind() != OMPC_SEVERITY_warning)
       return StmtError();
   }
-  return OMPErrorDirective::Create(Context, StartLoc, EndLoc, Clauses);
+  return OMPErrorDirective::Create(getASTContext(), StartLoc, EndLoc, Clauses);
 }
 
-StmtResult Sema::ActOnOpenMPTaskwaitDirective(ArrayRef<OMPClause *> Clauses,
-                                              SourceLocation StartLoc,
-                                              SourceLocation EndLoc) {
+StmtResult
+SemaOpenMP::ActOnOpenMPTaskwaitDirective(ArrayRef<OMPClause *> Clauses,
+                                         SourceLocation StartLoc,
+                                         SourceLocation EndLoc) {
   const OMPNowaitClause *NowaitC =
       OMPExecutableDirective::getSingleClause<OMPNowaitClause>(Clauses);
   bool HasDependC =
@@ -11459,28 +11494,29 @@ StmtResult Sema::ActOnOpenMPTaskwaitDirective(ArrayRef<OMPClause *> Clauses,
     return StmtError();
   }
 
-  return OMPTaskwaitDirective::Create(Context, StartLoc, EndLoc, Clauses);
+  return OMPTaskwaitDirective::Create(getASTContext(), StartLoc, EndLoc,
+                                      Clauses);
 }
 
-StmtResult Sema::ActOnOpenMPTaskgroupDirective(ArrayRef<OMPClause *> Clauses,
-                                               Stmt *AStmt,
-                                               SourceLocation StartLoc,
-                                               SourceLocation EndLoc) {
+StmtResult
+SemaOpenMP::ActOnOpenMPTaskgroupDirective(ArrayRef<OMPClause *> Clauses,
+                                          Stmt *AStmt, SourceLocation StartLoc,
+                                          SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
   assert(isa<CapturedStmt>(AStmt) && "Captured statement expected");
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
-  return OMPTaskgroupDirective::Create(Context, StartLoc, EndLoc, Clauses,
-                                       AStmt,
+  return OMPTaskgroupDirective::Create(getASTContext(), StartLoc, EndLoc,
+                                       Clauses, AStmt,
                                        DSAStack->getTaskgroupReductionRef());
 }
 
-StmtResult Sema::ActOnOpenMPFlushDirective(ArrayRef<OMPClause *> Clauses,
-                                           SourceLocation StartLoc,
-                                           SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPFlushDirective(ArrayRef<OMPClause *> Clauses,
+                                                 SourceLocation StartLoc,
+                                                 SourceLocation EndLoc) {
   OMPFlushClause *FC = nullptr;
   OMPClause *OrderClause = nullptr;
   for (OMPClause *C : Clauses) {
@@ -11514,12 +11550,12 @@ StmtResult Sema::ActOnOpenMPFlushDirective(ArrayRef<OMPClause *> Clauses,
         << getOpenMPClauseName(OrderClause->getClauseKind());
     return StmtError();
   }
-  return OMPFlushDirective::Create(Context, StartLoc, EndLoc, Clauses);
+  return OMPFlushDirective::Create(getASTContext(), StartLoc, EndLoc, Clauses);
 }
 
-StmtResult Sema::ActOnOpenMPDepobjDirective(ArrayRef<OMPClause *> Clauses,
-                                            SourceLocation StartLoc,
-                                            SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPDepobjDirective(ArrayRef<OMPClause *> Clauses,
+                                                  SourceLocation StartLoc,
+                                                  SourceLocation EndLoc) {
   if (Clauses.empty()) {
     Diag(StartLoc, diag::err_omp_depobj_expected);
     return StmtError();
@@ -11536,12 +11572,12 @@ StmtResult Sema::ActOnOpenMPDepobjDirective(ArrayRef<OMPClause *> Clauses,
     Diag(Clauses[0]->getEndLoc(), diag::err_omp_depobj_single_clause_expected);
     return StmtError();
   }
-  return OMPDepobjDirective::Create(Context, StartLoc, EndLoc, Clauses);
+  return OMPDepobjDirective::Create(getASTContext(), StartLoc, EndLoc, Clauses);
 }
 
-StmtResult Sema::ActOnOpenMPScanDirective(ArrayRef<OMPClause *> Clauses,
-                                          SourceLocation StartLoc,
-                                          SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPScanDirective(ArrayRef<OMPClause *> Clauses,
+                                                SourceLocation StartLoc,
+                                                SourceLocation EndLoc) {
   // Check that exactly one clause is specified.
   if (Clauses.size() != 1) {
     Diag(Clauses.empty() ? EndLoc : Clauses[1]->getBeginLoc(),
@@ -11566,13 +11602,13 @@ StmtResult Sema::ActOnOpenMPScanDirective(ArrayRef<OMPClause *> Clauses,
     return StmtError();
   }
   DSAStack->setParentHasScanDirective(StartLoc);
-  return OMPScanDirective::Create(Context, StartLoc, EndLoc, Clauses);
+  return OMPScanDirective::Create(getASTContext(), StartLoc, EndLoc, Clauses);
 }
 
-StmtResult Sema::ActOnOpenMPOrderedDirective(ArrayRef<OMPClause *> Clauses,
-                                             Stmt *AStmt,
-                                             SourceLocation StartLoc,
-                                             SourceLocation EndLoc) {
+StmtResult
+SemaOpenMP::ActOnOpenMPOrderedDirective(ArrayRef<OMPClause *> Clauses,
+                                        Stmt *AStmt, SourceLocation StartLoc,
+                                        SourceLocation EndLoc) {
   const OMPClause *DependFound = nullptr;
   const OMPClause *DependSourceClause = nullptr;
   const OMPClause *DependSinkClause = nullptr;
@@ -11631,7 +11667,7 @@ StmtResult Sema::ActOnOpenMPOrderedDirective(ArrayRef<OMPClause *> Clauses,
     // An ordered construct with the simd clause is the only OpenMP construct
     // that can appear in the simd region.
     Diag(StartLoc, diag::err_omp_prohibited_region_simd)
-        << (LangOpts.OpenMP >= 50 ? 1 : 0);
+        << (getLangOpts().OpenMP >= 50 ? 1 : 0);
     ErrorFound = true;
   } else if ((DependFound || DoacrossFound) && (TC || SC)) {
     SourceLocation Loc =
@@ -11678,10 +11714,11 @@ StmtResult Sema::ActOnOpenMPOrderedDirective(ArrayRef<OMPClause *> Clauses,
   if (AStmt) {
     assert(isa<CapturedStmt>(AStmt) && "Captured statement expected");
 
-    setFunctionHasBranchProtectedScope();
+    SemaRef.setFunctionHasBranchProtectedScope();
   }
 
-  return OMPOrderedDirective::Create(Context, StartLoc, EndLoc, Clauses, AStmt);
+  return OMPOrderedDirective::Create(getASTContext(), StartLoc, EndLoc, Clauses,
+                                     AStmt);
 }
 
 namespace {
@@ -12739,10 +12776,11 @@ bool OpenMPAtomicCompareCaptureChecker::checkStmt(Stmt *S,
 }
 } // namespace
 
-StmtResult Sema::ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
-                                            Stmt *AStmt,
-                                            SourceLocation StartLoc,
-                                            SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
+                                                  Stmt *AStmt,
+                                                  SourceLocation StartLoc,
+                                                  SourceLocation EndLoc) {
+  ASTContext &Context = getASTContext();
   // Register location of the first atomic directive.
   DSAStack->addAtomicDirectiveLoc(StartLoc);
   if (!AStmt)
@@ -12945,7 +12983,7 @@ StmtResult Sema::ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
           << ErrorFound << NoteRange;
       return StmtError();
     }
-    if (CurContext->isDependentContext())
+    if (SemaRef.CurContext->isDependentContext())
       V = X = nullptr;
   } else if (AtomicKind == OMPC_write) {
     enum {
@@ -13007,7 +13045,7 @@ StmtResult Sema::ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
           << ErrorFound << NoteRange;
       return StmtError();
     }
-    if (CurContext->isDependentContext())
+    if (SemaRef.CurContext->isDependentContext())
       E = X = nullptr;
   } else if (AtomicKind == OMPC_update || AtomicKind == OMPC_unknown) {
     // If clause is update:
@@ -13018,7 +13056,7 @@ StmtResult Sema::ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
     //  x binop= expr;
     //  x = x binop expr;
     //  x = expr binop x;
-    OpenMPAtomicUpdateChecker Checker(*this);
+    OpenMPAtomicUpdateChecker Checker(SemaRef);
     if (Checker.checkStatement(
             Body,
             (AtomicKind == OMPC_update)
@@ -13026,7 +13064,7 @@ StmtResult Sema::ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
                 : diag::err_omp_atomic_not_expression_statement,
             diag::note_omp_atomic_update))
       return StmtError();
-    if (!CurContext->isDependentContext()) {
+    if (!SemaRef.CurContext->isDependentContext()) {
       E = Checker.getExpr();
       X = Checker.getX();
       UE = Checker.getUpdateExpr();
@@ -13056,7 +13094,7 @@ StmtResult Sema::ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
       if (AtomicBinOp && AtomicBinOp->getOpcode() == BO_Assign) {
         V = AtomicBinOp->getLHS();
         Body = AtomicBinOp->getRHS()->IgnoreParenImpCasts();
-        OpenMPAtomicUpdateChecker Checker(*this);
+        OpenMPAtomicUpdateChecker Checker(SemaRef);
         if (Checker.checkStatement(
                 Body, diag::err_omp_atomic_capture_not_expression_statement,
                 diag::note_omp_atomic_update))
@@ -13081,7 +13119,7 @@ StmtResult Sema::ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
         Diag(NoteLoc, diag::note_omp_atomic_capture) << ErrorFound << NoteRange;
         return StmtError();
       }
-      if (CurContext->isDependentContext())
+      if (SemaRef.CurContext->isDependentContext())
         UE = V = E = X = nullptr;
     } else {
       // If clause is a capture:
@@ -13110,14 +13148,14 @@ StmtResult Sema::ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
           if (auto *EWC = dyn_cast<ExprWithCleanups>(Second))
             Second = EWC->getSubExpr()->IgnoreParenImpCasts();
           // Need to find what subexpression is 'v' and what is 'x'.
-          OpenMPAtomicUpdateChecker Checker(*this);
+          OpenMPAtomicUpdateChecker Checker(SemaRef);
           bool IsUpdateExprFound = !Checker.checkStatement(Second);
           BinaryOperator *BinOp = nullptr;
           if (IsUpdateExprFound) {
             BinOp = dyn_cast<BinaryOperator>(First);
             IsUpdateExprFound = BinOp && BinOp->getOpcode() == BO_Assign;
           }
-          if (IsUpdateExprFound && !CurContext->isDependentContext()) {
+          if (IsUpdateExprFound && !SemaRef.CurContext->isDependentContext()) {
             //  { v = x; x++; }
             //  { v = x; x--; }
             //  { v = x; ++x; }
@@ -13147,7 +13185,8 @@ StmtResult Sema::ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
               BinOp = dyn_cast<BinaryOperator>(Second);
               IsUpdateExprFound = BinOp && BinOp->getOpcode() == BO_Assign;
             }
-            if (IsUpdateExprFound && !CurContext->isDependentContext()) {
+            if (IsUpdateExprFound &&
+                !SemaRef.CurContext->isDependentContext()) {
               //  { x++; v = x; }
               //  { x--; v = x; }
               //  { ++x; v = x; }
@@ -13244,12 +13283,12 @@ StmtResult Sema::ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
       Diag(NoteLoc, diag::note_omp_atomic_capture) << ErrorFound << NoteRange;
       return StmtError();
     }
-    if (CurContext->isDependentContext())
+    if (SemaRef.CurContext->isDependentContext())
       UE = V = E = X = nullptr;
   } else if (AtomicKind == OMPC_compare) {
     if (IsCompareCapture) {
       OpenMPAtomicCompareCaptureChecker::ErrorInfoTy ErrorInfo;
-      OpenMPAtomicCompareCaptureChecker Checker(*this);
+      OpenMPAtomicCompareCaptureChecker Checker(SemaRef);
       if (!Checker.checkStmt(Body, ErrorInfo)) {
         Diag(ErrorInfo.ErrorLoc, diag::err_omp_atomic_compare_capture)
             << ErrorInfo.ErrorRange;
@@ -13269,7 +13308,7 @@ StmtResult Sema::ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
       IsPostfixUpdate = Checker.isPostfixUpdate();
     } else {
       OpenMPAtomicCompareChecker::ErrorInfoTy ErrorInfo;
-      OpenMPAtomicCompareChecker Checker(*this);
+      OpenMPAtomicCompareChecker Checker(SemaRef);
       if (!Checker.checkStmt(Body, ErrorInfo)) {
         Diag(ErrorInfo.ErrorLoc, diag::err_omp_atomic_compare)
             << ErrorInfo.ErrorRange;
@@ -13307,17 +13346,17 @@ StmtResult Sema::ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
     }
   }
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   return OMPAtomicDirective::Create(
       Context, StartLoc, EndLoc, Clauses, AStmt,
       {X, V, R, E, UE, D, CE, IsXLHSInRHSPart, IsPostfixUpdate, IsFailOnly});
 }
 
-StmtResult Sema::ActOnOpenMPTargetDirective(ArrayRef<OMPClause *> Clauses,
-                                            Stmt *AStmt,
-                                            SourceLocation StartLoc,
-                                            SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPTargetDirective(ArrayRef<OMPClause *> Clauses,
+                                                  Stmt *AStmt,
+                                                  SourceLocation StartLoc,
+                                                  SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
@@ -13374,15 +13413,15 @@ StmtResult Sema::ActOnOpenMPTargetDirective(ArrayRef<OMPClause *> Clauses,
     }
   }
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
-  return OMPTargetDirective::Create(Context, StartLoc, EndLoc, Clauses, AStmt);
+  return OMPTargetDirective::Create(getASTContext(), StartLoc, EndLoc, Clauses,
+                                    AStmt);
 }
 
-StmtResult
-Sema::ActOnOpenMPTargetParallelDirective(ArrayRef<OMPClause *> Clauses,
-                                         Stmt *AStmt, SourceLocation StartLoc,
-                                         SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPTargetParallelDirective(
+    ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+    SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
@@ -13404,14 +13443,14 @@ Sema::ActOnOpenMPTargetParallelDirective(ArrayRef<OMPClause *> Clauses,
     CS->getCapturedDecl()->setNothrow();
   }
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   return OMPTargetParallelDirective::Create(
-      Context, StartLoc, EndLoc, Clauses, AStmt,
+      getASTContext(), StartLoc, EndLoc, Clauses, AStmt,
       DSAStack->getTaskgroupReductionRef(), DSAStack->isCancelRegion());
 }
 
-StmtResult Sema::ActOnOpenMPTargetParallelForDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTargetParallelForDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -13440,28 +13479,28 @@ StmtResult Sema::ActOnOpenMPTargetParallelForDirective(
   // define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_target_parallel_for, getCollapseNumberExpr(Clauses),
-                      getOrderedNumberExpr(Clauses), CS, *this, *DSAStack,
+                      getOrderedNumberExpr(Clauses), CS, SemaRef, *DSAStack,
                       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp target parallel for loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPTargetParallelForDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
       DSAStack->getTaskgroupReductionRef(), DSAStack->isCancelRegion());
 }
 
@@ -13498,10 +13537,10 @@ static bool isClauseMappable(ArrayRef<OMPClause *> Clauses) {
   return true;
 }
 
-StmtResult Sema::ActOnOpenMPTargetDataDirective(ArrayRef<OMPClause *> Clauses,
-                                                Stmt *AStmt,
-                                                SourceLocation StartLoc,
-                                                SourceLocation EndLoc) {
+StmtResult
+SemaOpenMP::ActOnOpenMPTargetDataDirective(ArrayRef<OMPClause *> Clauses,
+                                           Stmt *AStmt, SourceLocation StartLoc,
+                                           SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
@@ -13511,9 +13550,10 @@ StmtResult Sema::ActOnOpenMPTargetDataDirective(ArrayRef<OMPClause *> Clauses,
   // At least one map, use_device_addr or use_device_ptr clause must appear on
   // the directive.
   if (!hasClauses(Clauses, OMPC_map, OMPC_use_device_ptr) &&
-      (LangOpts.OpenMP < 50 || !hasClauses(Clauses, OMPC_use_device_addr))) {
+      (getLangOpts().OpenMP < 50 ||
+       !hasClauses(Clauses, OMPC_use_device_addr))) {
     StringRef Expected;
-    if (LangOpts.OpenMP < 50)
+    if (getLangOpts().OpenMP < 50)
       Expected = "'map' or 'use_device_ptr'";
     else
       Expected = "'map', 'use_device_ptr', or 'use_device_addr'";
@@ -13522,16 +13562,15 @@ StmtResult Sema::ActOnOpenMPTargetDataDirective(ArrayRef<OMPClause *> Clauses,
     return StmtError();
   }
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
-  return OMPTargetDataDirective::Create(Context, StartLoc, EndLoc, Clauses,
-                                        AStmt);
+  return OMPTargetDataDirective::Create(getASTContext(), StartLoc, EndLoc,
+                                        Clauses, AStmt);
 }
 
-StmtResult
-Sema::ActOnOpenMPTargetEnterDataDirective(ArrayRef<OMPClause *> Clauses,
-                                          SourceLocation StartLoc,
-                                          SourceLocation EndLoc, Stmt *AStmt) {
+StmtResult SemaOpenMP::ActOnOpenMPTargetEnterDataDirective(
+    ArrayRef<OMPClause *> Clauses, SourceLocation StartLoc,
+    SourceLocation EndLoc, Stmt *AStmt) {
   if (!AStmt)
     return StmtError();
 
@@ -13561,14 +13600,13 @@ Sema::ActOnOpenMPTargetEnterDataDirective(ArrayRef<OMPClause *> Clauses,
     return StmtError();
   }
 
-  return OMPTargetEnterDataDirective::Create(Context, StartLoc, EndLoc, Clauses,
-                                             AStmt);
+  return OMPTargetEnterDataDirective::Create(getASTContext(), StartLoc, EndLoc,
+                                             Clauses, AStmt);
 }
 
-StmtResult
-Sema::ActOnOpenMPTargetExitDataDirective(ArrayRef<OMPClause *> Clauses,
-                                         SourceLocation StartLoc,
-                                         SourceLocation EndLoc, Stmt *AStmt) {
+StmtResult SemaOpenMP::ActOnOpenMPTargetExitDataDirective(
+    ArrayRef<OMPClause *> Clauses, SourceLocation StartLoc,
+    SourceLocation EndLoc, Stmt *AStmt) {
   if (!AStmt)
     return StmtError();
 
@@ -13598,14 +13636,13 @@ Sema::ActOnOpenMPTargetExitDataDirective(ArrayRef<OMPClause *> Clauses,
     return StmtError();
   }
 
-  return OMPTargetExitDataDirective::Create(Context, StartLoc, EndLoc, Clauses,
-                                            AStmt);
+  return OMPTargetExitDataDirective::Create(getASTContext(), StartLoc, EndLoc,
+                                            Clauses, AStmt);
 }
 
-StmtResult Sema::ActOnOpenMPTargetUpdateDirective(ArrayRef<OMPClause *> Clauses,
-                                                  SourceLocation StartLoc,
-                                                  SourceLocation EndLoc,
-                                                  Stmt *AStmt) {
+StmtResult SemaOpenMP::ActOnOpenMPTargetUpdateDirective(
+    ArrayRef<OMPClause *> Clauses, SourceLocation StartLoc,
+    SourceLocation EndLoc, Stmt *AStmt) {
   if (!AStmt)
     return StmtError();
 
@@ -13637,13 +13674,14 @@ StmtResult Sema::ActOnOpenMPTargetUpdateDirective(ArrayRef<OMPClause *> Clauses,
     return StmtError();
   }
 
-  return OMPTargetUpdateDirective::Create(Context, StartLoc, EndLoc, Clauses,
-                                          AStmt);
+  return OMPTargetUpdateDirective::Create(getASTContext(), StartLoc, EndLoc,
+                                          Clauses, AStmt);
 }
 
-StmtResult Sema::ActOnOpenMPTeamsDirective(ArrayRef<OMPClause *> Clauses,
-                                           Stmt *AStmt, SourceLocation StartLoc,
-                                           SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPTeamsDirective(ArrayRef<OMPClause *> Clauses,
+                                                 Stmt *AStmt,
+                                                 SourceLocation StartLoc,
+                                                 SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
@@ -13659,17 +13697,17 @@ StmtResult Sema::ActOnOpenMPTeamsDirective(ArrayRef<OMPClause *> Clauses,
   // longjmp() and throw() must not violate the entry/exit criteria.
   CS->getCapturedDecl()->setNothrow();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   DSAStack->setParentTeamsRegionLoc(StartLoc);
 
-  return OMPTeamsDirective::Create(Context, StartLoc, EndLoc, Clauses, AStmt);
+  return OMPTeamsDirective::Create(getASTContext(), StartLoc, EndLoc, Clauses,
+                                   AStmt);
 }
 
-StmtResult
-Sema::ActOnOpenMPCancellationPointDirective(SourceLocation StartLoc,
-                                            SourceLocation EndLoc,
-                                            OpenMPDirectiveKind CancelRegion) {
+StmtResult SemaOpenMP::ActOnOpenMPCancellationPointDirective(
+    SourceLocation StartLoc, SourceLocation EndLoc,
+    OpenMPDirectiveKind CancelRegion) {
   if (DSAStack->isParentNowaitRegion()) {
     Diag(StartLoc, diag::err_omp_parent_cancel_region_nowait) << 0;
     return StmtError();
@@ -13678,14 +13716,13 @@ Sema::ActOnOpenMPCancellationPointDirective(SourceLocation StartLoc,
     Diag(StartLoc, diag::err_omp_parent_cancel_region_ordered) << 0;
     return StmtError();
   }
-  return OMPCancellationPointDirective::Create(Context, StartLoc, EndLoc,
-                                               CancelRegion);
+  return OMPCancellationPointDirective::Create(getASTContext(), StartLoc,
+                                               EndLoc, CancelRegion);
 }
 
-StmtResult Sema::ActOnOpenMPCancelDirective(ArrayRef<OMPClause *> Clauses,
-                                            SourceLocation StartLoc,
-                                            SourceLocation EndLoc,
-                                            OpenMPDirectiveKind CancelRegion) {
+StmtResult SemaOpenMP::ActOnOpenMPCancelDirective(
+    ArrayRef<OMPClause *> Clauses, SourceLocation StartLoc,
+    SourceLocation EndLoc, OpenMPDirectiveKind CancelRegion) {
   if (DSAStack->isParentNowaitRegion()) {
     Diag(StartLoc, diag::err_omp_parent_cancel_region_nowait) << 1;
     return StmtError();
@@ -13695,7 +13732,7 @@ StmtResult Sema::ActOnOpenMPCancelDirective(ArrayRef<OMPClause *> Clauses,
     return StmtError();
   }
   DSAStack->setParentCancelRegion(/*Cancel=*/true);
-  return OMPCancelDirective::Create(Context, StartLoc, EndLoc, Clauses,
+  return OMPCancelDirective::Create(getASTContext(), StartLoc, EndLoc, Clauses,
                                     CancelRegion);
 }
 
@@ -13726,7 +13763,7 @@ static bool checkReductionClauseWithNogroup(Sema &S,
   return false;
 }
 
-StmtResult Sema::ActOnOpenMPTaskLoopDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTaskLoopDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -13738,33 +13775,33 @@ StmtResult Sema::ActOnOpenMPTaskLoopDirective(
   // define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_taskloop, getCollapseNumberExpr(Clauses),
-                      /*OrderedLoopCountExpr=*/nullptr, AStmt, *this, *DSAStack,
-                      VarsWithImplicitDSA, B);
+                      /*OrderedLoopCountExpr=*/nullptr, AStmt, SemaRef,
+                      *DSAStack, VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // The grainsize clause and num_tasks clause are mutually exclusive and may
   // not appear on the same taskloop directive.
-  if (checkMutuallyExclusiveClauses(*this, Clauses,
+  if (checkMutuallyExclusiveClauses(SemaRef, Clauses,
                                     {OMPC_grainsize, OMPC_num_tasks}))
     return StmtError();
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // If a reduction clause is present on the taskloop directive, the nogroup
   // clause must not be specified.
-  if (checkReductionClauseWithNogroup(*this, Clauses))
+  if (checkReductionClauseWithNogroup(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
-  return OMPTaskLoopDirective::Create(Context, StartLoc, EndLoc,
+  SemaRef.setFunctionHasBranchProtectedScope();
+  return OMPTaskLoopDirective::Create(getASTContext(), StartLoc, EndLoc,
                                       NestedLoopCount, Clauses, AStmt, B,
                                       DSAStack->isCancelRegion());
 }
 
-StmtResult Sema::ActOnOpenMPTaskLoopSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTaskLoopSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -13776,21 +13813,21 @@ StmtResult Sema::ActOnOpenMPTaskLoopSimdDirective(
   // define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_taskloop_simd, getCollapseNumberExpr(Clauses),
-                      /*OrderedLoopCountExpr=*/nullptr, AStmt, *this, *DSAStack,
-                      VarsWithImplicitDSA, B);
+                      /*OrderedLoopCountExpr=*/nullptr, AStmt, SemaRef,
+                      *DSAStack, VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
@@ -13798,23 +13835,23 @@ StmtResult Sema::ActOnOpenMPTaskLoopSimdDirective(
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // The grainsize clause and num_tasks clause are mutually exclusive and may
   // not appear on the same taskloop directive.
-  if (checkMutuallyExclusiveClauses(*this, Clauses,
+  if (checkMutuallyExclusiveClauses(SemaRef, Clauses,
                                     {OMPC_grainsize, OMPC_num_tasks}))
     return StmtError();
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // If a reduction clause is present on the taskloop directive, the nogroup
   // clause must not be specified.
-  if (checkReductionClauseWithNogroup(*this, Clauses))
+  if (checkReductionClauseWithNogroup(SemaRef, Clauses))
     return StmtError();
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
-  return OMPTaskLoopSimdDirective::Create(Context, StartLoc, EndLoc,
+  SemaRef.setFunctionHasBranchProtectedScope();
+  return OMPTaskLoopSimdDirective::Create(getASTContext(), StartLoc, EndLoc,
                                           NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPMasterTaskLoopDirective(
+StmtResult SemaOpenMP::ActOnOpenMPMasterTaskLoopDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -13826,33 +13863,33 @@ StmtResult Sema::ActOnOpenMPMasterTaskLoopDirective(
   // define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_master_taskloop, getCollapseNumberExpr(Clauses),
-                      /*OrderedLoopCountExpr=*/nullptr, AStmt, *this, *DSAStack,
-                      VarsWithImplicitDSA, B);
+                      /*OrderedLoopCountExpr=*/nullptr, AStmt, SemaRef,
+                      *DSAStack, VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // The grainsize clause and num_tasks clause are mutually exclusive and may
   // not appear on the same taskloop directive.
-  if (checkMutuallyExclusiveClauses(*this, Clauses,
+  if (checkMutuallyExclusiveClauses(SemaRef, Clauses,
                                     {OMPC_grainsize, OMPC_num_tasks}))
     return StmtError();
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // If a reduction clause is present on the taskloop directive, the nogroup
   // clause must not be specified.
-  if (checkReductionClauseWithNogroup(*this, Clauses))
+  if (checkReductionClauseWithNogroup(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
-  return OMPMasterTaskLoopDirective::Create(Context, StartLoc, EndLoc,
+  SemaRef.setFunctionHasBranchProtectedScope();
+  return OMPMasterTaskLoopDirective::Create(getASTContext(), StartLoc, EndLoc,
                                             NestedLoopCount, Clauses, AStmt, B,
                                             DSAStack->isCancelRegion());
 }
 
-StmtResult Sema::ActOnOpenMPMaskedTaskLoopDirective(
+StmtResult SemaOpenMP::ActOnOpenMPMaskedTaskLoopDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -13864,33 +13901,33 @@ StmtResult Sema::ActOnOpenMPMaskedTaskLoopDirective(
   // define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_masked_taskloop, getCollapseNumberExpr(Clauses),
-                      /*OrderedLoopCountExpr=*/nullptr, AStmt, *this, *DSAStack,
-                      VarsWithImplicitDSA, B);
+                      /*OrderedLoopCountExpr=*/nullptr, AStmt, SemaRef,
+                      *DSAStack, VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // The grainsize clause and num_tasks clause are mutually exclusive and may
   // not appear on the same taskloop directive.
-  if (checkMutuallyExclusiveClauses(*this, Clauses,
+  if (checkMutuallyExclusiveClauses(SemaRef, Clauses,
                                     {OMPC_grainsize, OMPC_num_tasks}))
     return StmtError();
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // If a reduction clause is present on the taskloop directive, the nogroup
   // clause must not be specified.
-  if (checkReductionClauseWithNogroup(*this, Clauses))
+  if (checkReductionClauseWithNogroup(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
-  return OMPMaskedTaskLoopDirective::Create(Context, StartLoc, EndLoc,
+  SemaRef.setFunctionHasBranchProtectedScope();
+  return OMPMaskedTaskLoopDirective::Create(getASTContext(), StartLoc, EndLoc,
                                             NestedLoopCount, Clauses, AStmt, B,
                                             DSAStack->isCancelRegion());
 }
 
-StmtResult Sema::ActOnOpenMPMasterTaskLoopSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPMasterTaskLoopSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -13902,21 +13939,21 @@ StmtResult Sema::ActOnOpenMPMasterTaskLoopSimdDirective(
   // define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_master_taskloop_simd, getCollapseNumberExpr(Clauses),
-                      /*OrderedLoopCountExpr=*/nullptr, AStmt, *this, *DSAStack,
-                      VarsWithImplicitDSA, B);
+                      /*OrderedLoopCountExpr=*/nullptr, AStmt, SemaRef,
+                      *DSAStack, VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
@@ -13924,23 +13961,23 @@ StmtResult Sema::ActOnOpenMPMasterTaskLoopSimdDirective(
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // The grainsize clause and num_tasks clause are mutually exclusive and may
   // not appear on the same taskloop directive.
-  if (checkMutuallyExclusiveClauses(*this, Clauses,
+  if (checkMutuallyExclusiveClauses(SemaRef, Clauses,
                                     {OMPC_grainsize, OMPC_num_tasks}))
     return StmtError();
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // If a reduction clause is present on the taskloop directive, the nogroup
   // clause must not be specified.
-  if (checkReductionClauseWithNogroup(*this, Clauses))
+  if (checkReductionClauseWithNogroup(SemaRef, Clauses))
     return StmtError();
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPMasterTaskLoopSimdDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPMaskedTaskLoopSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPMaskedTaskLoopSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -13952,21 +13989,21 @@ StmtResult Sema::ActOnOpenMPMaskedTaskLoopSimdDirective(
   // define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_masked_taskloop_simd, getCollapseNumberExpr(Clauses),
-                      /*OrderedLoopCountExpr=*/nullptr, AStmt, *this, *DSAStack,
-                      VarsWithImplicitDSA, B);
+                      /*OrderedLoopCountExpr=*/nullptr, AStmt, SemaRef,
+                      *DSAStack, VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
@@ -13974,23 +14011,23 @@ StmtResult Sema::ActOnOpenMPMaskedTaskLoopSimdDirective(
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // The grainsize clause and num_tasks clause are mutually exclusive and may
   // not appear on the same taskloop directive.
-  if (checkMutuallyExclusiveClauses(*this, Clauses,
+  if (checkMutuallyExclusiveClauses(SemaRef, Clauses,
                                     {OMPC_grainsize, OMPC_num_tasks}))
     return StmtError();
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // If a reduction clause is present on the taskloop directive, the nogroup
   // clause must not be specified.
-  if (checkReductionClauseWithNogroup(*this, Clauses))
+  if (checkReductionClauseWithNogroup(SemaRef, Clauses))
     return StmtError();
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPMaskedTaskLoopSimdDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPParallelMasterTaskLoopDirective(
+StmtResult SemaOpenMP::ActOnOpenMPParallelMasterTaskLoopDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14021,33 +14058,33 @@ StmtResult Sema::ActOnOpenMPParallelMasterTaskLoopDirective(
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_parallel_master_taskloop, getCollapseNumberExpr(Clauses),
-      /*OrderedLoopCountExpr=*/nullptr, CS, *this, *DSAStack,
+      /*OrderedLoopCountExpr=*/nullptr, CS, SemaRef, *DSAStack,
       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // The grainsize clause and num_tasks clause are mutually exclusive and may
   // not appear on the same taskloop directive.
-  if (checkMutuallyExclusiveClauses(*this, Clauses,
+  if (checkMutuallyExclusiveClauses(SemaRef, Clauses,
                                     {OMPC_grainsize, OMPC_num_tasks}))
     return StmtError();
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // If a reduction clause is present on the taskloop directive, the nogroup
   // clause must not be specified.
-  if (checkReductionClauseWithNogroup(*this, Clauses))
+  if (checkReductionClauseWithNogroup(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPParallelMasterTaskLoopDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
       DSAStack->isCancelRegion());
 }
 
-StmtResult Sema::ActOnOpenMPParallelMaskedTaskLoopDirective(
+StmtResult SemaOpenMP::ActOnOpenMPParallelMaskedTaskLoopDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14078,33 +14115,33 @@ StmtResult Sema::ActOnOpenMPParallelMaskedTaskLoopDirective(
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_parallel_masked_taskloop, getCollapseNumberExpr(Clauses),
-      /*OrderedLoopCountExpr=*/nullptr, CS, *this, *DSAStack,
+      /*OrderedLoopCountExpr=*/nullptr, CS, SemaRef, *DSAStack,
       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // The grainsize clause and num_tasks clause are mutually exclusive and may
   // not appear on the same taskloop directive.
-  if (checkMutuallyExclusiveClauses(*this, Clauses,
+  if (checkMutuallyExclusiveClauses(SemaRef, Clauses,
                                     {OMPC_grainsize, OMPC_num_tasks}))
     return StmtError();
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // If a reduction clause is present on the taskloop directive, the nogroup
   // clause must not be specified.
-  if (checkReductionClauseWithNogroup(*this, Clauses))
+  if (checkReductionClauseWithNogroup(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPParallelMaskedTaskLoopDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
       DSAStack->isCancelRegion());
 }
 
-StmtResult Sema::ActOnOpenMPParallelMasterTaskLoopSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPParallelMasterTaskLoopSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14135,21 +14172,21 @@ StmtResult Sema::ActOnOpenMPParallelMasterTaskLoopSimdDirective(
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_parallel_master_taskloop_simd, getCollapseNumberExpr(Clauses),
-      /*OrderedLoopCountExpr=*/nullptr, CS, *this, *DSAStack,
+      /*OrderedLoopCountExpr=*/nullptr, CS, SemaRef, *DSAStack,
       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
@@ -14157,23 +14194,23 @@ StmtResult Sema::ActOnOpenMPParallelMasterTaskLoopSimdDirective(
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // The grainsize clause and num_tasks clause are mutually exclusive and may
   // not appear on the same taskloop directive.
-  if (checkMutuallyExclusiveClauses(*this, Clauses,
+  if (checkMutuallyExclusiveClauses(SemaRef, Clauses,
                                     {OMPC_grainsize, OMPC_num_tasks}))
     return StmtError();
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // If a reduction clause is present on the taskloop directive, the nogroup
   // clause must not be specified.
-  if (checkReductionClauseWithNogroup(*this, Clauses))
+  if (checkReductionClauseWithNogroup(SemaRef, Clauses))
     return StmtError();
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPParallelMasterTaskLoopSimdDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPParallelMaskedTaskLoopSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPParallelMaskedTaskLoopSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14204,21 +14241,21 @@ StmtResult Sema::ActOnOpenMPParallelMaskedTaskLoopSimdDirective(
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_parallel_masked_taskloop_simd, getCollapseNumberExpr(Clauses),
-      /*OrderedLoopCountExpr=*/nullptr, CS, *this, *DSAStack,
+      /*OrderedLoopCountExpr=*/nullptr, CS, SemaRef, *DSAStack,
       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
@@ -14226,23 +14263,23 @@ StmtResult Sema::ActOnOpenMPParallelMaskedTaskLoopSimdDirective(
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // The grainsize clause and num_tasks clause are mutually exclusive and may
   // not appear on the same taskloop directive.
-  if (checkMutuallyExclusiveClauses(*this, Clauses,
+  if (checkMutuallyExclusiveClauses(SemaRef, Clauses,
                                     {OMPC_grainsize, OMPC_num_tasks}))
     return StmtError();
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // If a reduction clause is present on the taskloop directive, the nogroup
   // clause must not be specified.
-  if (checkReductionClauseWithNogroup(*this, Clauses))
+  if (checkReductionClauseWithNogroup(SemaRef, Clauses))
     return StmtError();
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPParallelMaskedTaskLoopSimdDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPDistributeDirective(
+StmtResult SemaOpenMP::ActOnOpenMPDistributeDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14258,21 +14295,21 @@ StmtResult Sema::ActOnOpenMPDistributeDirective(
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_distribute, getCollapseNumberExpr(Clauses),
                       nullptr /*ordered not a clause on distribute*/, AStmt,
-                      *this, *DSAStack, VarsWithImplicitDSA, B);
+                      SemaRef, *DSAStack, VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   auto *DistributeDirective = OMPDistributeDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
       DSAStack->getMappedDirective());
   return DistributeDirective;
 }
 
-StmtResult Sema::ActOnOpenMPDistributeParallelForDirective(
+StmtResult SemaOpenMP::ActOnOpenMPDistributeParallelForDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14302,21 +14339,21 @@ StmtResult Sema::ActOnOpenMPDistributeParallelForDirective(
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_distribute_parallel_for, getCollapseNumberExpr(Clauses),
-      nullptr /*ordered not a clause on distribute*/, CS, *this, *DSAStack,
+      nullptr /*ordered not a clause on distribute*/, CS, SemaRef, *DSAStack,
       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPDistributeParallelForDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
       DSAStack->getTaskgroupReductionRef(), DSAStack->isCancelRegion());
 }
 
-StmtResult Sema::ActOnOpenMPDistributeParallelForSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPDistributeParallelForSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14346,34 +14383,34 @@ StmtResult Sema::ActOnOpenMPDistributeParallelForSimdDirective(
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_distribute_parallel_for_simd, getCollapseNumberExpr(Clauses),
-      nullptr /*ordered not a clause on distribute*/, CS, *this, *DSAStack,
+      nullptr /*ordered not a clause on distribute*/, CS, SemaRef, *DSAStack,
       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
 
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPDistributeParallelForSimdDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPDistributeSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPDistributeSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14402,34 +14439,34 @@ StmtResult Sema::ActOnOpenMPDistributeSimdDirective(
   // define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_distribute_simd, getCollapseNumberExpr(Clauses),
-                      nullptr /*ordered not a clause on distribute*/, CS, *this,
-                      *DSAStack, VarsWithImplicitDSA, B);
+                      nullptr /*ordered not a clause on distribute*/, CS,
+                      SemaRef, *DSAStack, VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
 
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
-  return OMPDistributeSimdDirective::Create(Context, StartLoc, EndLoc,
+  SemaRef.setFunctionHasBranchProtectedScope();
+  return OMPDistributeSimdDirective::Create(getASTContext(), StartLoc, EndLoc,
                                             NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPTargetParallelForSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTargetParallelForSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14459,33 +14496,33 @@ StmtResult Sema::ActOnOpenMPTargetParallelForSimdDirective(
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_target_parallel_for_simd, getCollapseNumberExpr(Clauses),
-      getOrderedNumberExpr(Clauses), CS, *this, *DSAStack, VarsWithImplicitDSA,
-      B);
+      getOrderedNumberExpr(Clauses), CS, SemaRef, *DSAStack,
+      VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp target parallel for simd loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPTargetParallelForSimdDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPTargetSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTargetSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14514,34 +14551,34 @@ StmtResult Sema::ActOnOpenMPTargetSimdDirective(
   // nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_target_simd, getCollapseNumberExpr(Clauses),
-                      getOrderedNumberExpr(Clauses), CS, *this, *DSAStack,
+                      getOrderedNumberExpr(Clauses), CS, SemaRef, *DSAStack,
                       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp target simd loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
 
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
-  return OMPTargetSimdDirective::Create(Context, StartLoc, EndLoc,
+  SemaRef.setFunctionHasBranchProtectedScope();
+  return OMPTargetSimdDirective::Create(getASTContext(), StartLoc, EndLoc,
                                         NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPTeamsDistributeDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTeamsDistributeDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14570,23 +14607,23 @@ StmtResult Sema::ActOnOpenMPTeamsDistributeDirective(
   // define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_teams_distribute, getCollapseNumberExpr(Clauses),
-                      nullptr /*ordered not a clause on distribute*/, CS, *this,
-                      *DSAStack, VarsWithImplicitDSA, B);
+                      nullptr /*ordered not a clause on distribute*/, CS,
+                      SemaRef, *DSAStack, VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp teams distribute loop exprs were not built");
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   DSAStack->setParentTeamsRegionLoc(StartLoc);
 
   return OMPTeamsDistributeDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPTeamsDistributeSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTeamsDistributeSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14616,38 +14653,38 @@ StmtResult Sema::ActOnOpenMPTeamsDistributeSimdDirective(
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_teams_distribute_simd, getCollapseNumberExpr(Clauses),
-      nullptr /*ordered not a clause on distribute*/, CS, *this, *DSAStack,
+      nullptr /*ordered not a clause on distribute*/, CS, SemaRef, *DSAStack,
       VarsWithImplicitDSA, B);
 
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp teams distribute simd loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
 
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   DSAStack->setParentTeamsRegionLoc(StartLoc);
 
   return OMPTeamsDistributeSimdDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPTeamsDistributeParallelForSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTeamsDistributeParallelForSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14678,38 +14715,38 @@ StmtResult Sema::ActOnOpenMPTeamsDistributeParallelForSimdDirective(
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_teams_distribute_parallel_for_simd, getCollapseNumberExpr(Clauses),
-      nullptr /*ordered not a clause on distribute*/, CS, *this, *DSAStack,
+      nullptr /*ordered not a clause on distribute*/, CS, SemaRef, *DSAStack,
       VarsWithImplicitDSA, B);
 
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
 
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   DSAStack->setParentTeamsRegionLoc(StartLoc);
 
   return OMPTeamsDistributeParallelForSimdDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPTeamsDistributeParallelForDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTeamsDistributeParallelForDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14740,28 +14777,27 @@ StmtResult Sema::ActOnOpenMPTeamsDistributeParallelForDirective(
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_teams_distribute_parallel_for, getCollapseNumberExpr(Clauses),
-      nullptr /*ordered not a clause on distribute*/, CS, *this, *DSAStack,
+      nullptr /*ordered not a clause on distribute*/, CS, SemaRef, *DSAStack,
       VarsWithImplicitDSA, B);
 
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   DSAStack->setParentTeamsRegionLoc(StartLoc);
 
   return OMPTeamsDistributeParallelForDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
       DSAStack->getTaskgroupReductionRef(), DSAStack->isCancelRegion());
 }
 
-StmtResult Sema::ActOnOpenMPTargetTeamsDirective(ArrayRef<OMPClause *> Clauses,
-                                                 Stmt *AStmt,
-                                                 SourceLocation StartLoc,
-                                                 SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPTargetTeamsDirective(
+    ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+    SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
@@ -14783,7 +14819,7 @@ StmtResult Sema::ActOnOpenMPTargetTeamsDirective(ArrayRef<OMPClause *> Clauses,
     // longjmp() and throw() must not violate the entry/exit criteria.
     CS->getCapturedDecl()->setNothrow();
   }
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   const OMPClause *BareClause = nullptr;
   bool HasThreadLimitAndNumTeamsClause = hasClauses(Clauses, OMPC_num_teams) &&
@@ -14798,11 +14834,11 @@ StmtResult Sema::ActOnOpenMPTargetTeamsDirective(ArrayRef<OMPClause *> Clauses,
     return StmtError();
   }
 
-  return OMPTargetTeamsDirective::Create(Context, StartLoc, EndLoc, Clauses,
-                                         AStmt);
+  return OMPTargetTeamsDirective::Create(getASTContext(), StartLoc, EndLoc,
+                                         Clauses, AStmt);
 }
 
-StmtResult Sema::ActOnOpenMPTargetTeamsDistributeDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTargetTeamsDistributeDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14832,20 +14868,20 @@ StmtResult Sema::ActOnOpenMPTargetTeamsDistributeDirective(
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_target_teams_distribute, getCollapseNumberExpr(Clauses),
-      nullptr /*ordered not a clause on distribute*/, CS, *this, *DSAStack,
+      nullptr /*ordered not a clause on distribute*/, CS, SemaRef, *DSAStack,
       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp target teams distribute loop exprs were not built");
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPTargetTeamsDistributeDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPTargetTeamsDistributeParallelForDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTargetTeamsDistributeParallelForDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14875,32 +14911,32 @@ StmtResult Sema::ActOnOpenMPTargetTeamsDistributeParallelForDirective(
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_target_teams_distribute_parallel_for, getCollapseNumberExpr(Clauses),
-      nullptr /*ordered not a clause on distribute*/, CS, *this, *DSAStack,
+      nullptr /*ordered not a clause on distribute*/, CS, SemaRef, *DSAStack,
       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp target teams distribute parallel for loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPTargetTeamsDistributeParallelForDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
       DSAStack->getTaskgroupReductionRef(), DSAStack->isCancelRegion());
 }
 
-StmtResult Sema::ActOnOpenMPTargetTeamsDistributeParallelForSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTargetTeamsDistributeParallelForSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14931,35 +14967,35 @@ StmtResult Sema::ActOnOpenMPTargetTeamsDistributeParallelForSimdDirective(
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_target_teams_distribute_parallel_for_simd,
                       getCollapseNumberExpr(Clauses),
-                      nullptr /*ordered not a clause on distribute*/, CS, *this,
-                      *DSAStack, VarsWithImplicitDSA, B);
+                      nullptr /*ordered not a clause on distribute*/, CS,
+                      SemaRef, *DSAStack, VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp target teams distribute parallel for simd loop exprs were not "
          "built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
 
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPTargetTeamsDistributeParallelForSimdDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPTargetTeamsDistributeSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTargetTeamsDistributeSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14989,34 +15025,34 @@ StmtResult Sema::ActOnOpenMPTargetTeamsDistributeSimdDirective(
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_target_teams_distribute_simd, getCollapseNumberExpr(Clauses),
-      nullptr /*ordered not a clause on distribute*/, CS, *this, *DSAStack,
+      nullptr /*ordered not a clause on distribute*/, CS, SemaRef, *DSAStack,
       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp target teams distribute simd loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
 
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPTargetTeamsDistributeSimdDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-bool Sema::checkTransformableLoopNest(
+bool SemaOpenMP::checkTransformableLoopNest(
     OpenMPDirectiveKind Kind, Stmt *AStmt, int NumLoops,
     SmallVectorImpl<OMPLoopBasedDirective::HelperExprs> &LoopHelpers,
     Stmt *&Body,
@@ -15029,7 +15065,7 @@ bool Sema::checkTransformableLoopNest(
                                                         Stmt *CurStmt) {
         VarsWithInheritedDSAType TmpDSA;
         unsigned SingleNumLoops =
-            checkOpenMPLoop(Kind, nullptr, nullptr, CurStmt, *this, *DSAStack,
+            checkOpenMPLoop(Kind, nullptr, nullptr, CurStmt, SemaRef, *DSAStack,
                             TmpDSA, LoopHelpers[Cnt]);
         if (SingleNumLoops == 0)
           return true;
@@ -15065,9 +15101,11 @@ bool Sema::checkTransformableLoopNest(
   return Result;
 }
 
-StmtResult Sema::ActOnOpenMPTileDirective(ArrayRef<OMPClause *> Clauses,
-                                          Stmt *AStmt, SourceLocation StartLoc,
-                                          SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPTileDirective(ArrayRef<OMPClause *> Clauses,
+                                                Stmt *AStmt,
+                                                SourceLocation StartLoc,
+                                                SourceLocation EndLoc) {
+  ASTContext &Context = getASTContext();
   auto SizesClauses =
       OMPExecutableDirective::getClausesOfKind<OMPSizesClause>(Clauses);
   if (SizesClauses.empty()) {
@@ -15091,7 +15129,7 @@ StmtResult Sema::ActOnOpenMPTileDirective(ArrayRef<OMPClause *> Clauses,
     return StmtError();
 
   // Delay tiling to when template is completely instantiated.
-  if (CurContext->isDependentContext())
+  if (SemaRef.CurContext->isDependentContext())
     return OMPTileDirective::Create(Context, StartLoc, EndLoc, Clauses,
                                     NumLoops, AStmt, nullptr, nullptr);
 
@@ -15117,7 +15155,7 @@ StmtResult Sema::ActOnOpenMPTileDirective(ArrayRef<OMPClause *> Clauses,
       std::string FloorCntName =
           (Twine(".floor_") + llvm::utostr(I) + ".iv." + OrigVarName).str();
       VarDecl *FloorCntDecl =
-          buildVarDecl(*this, {}, CntTy, FloorCntName, nullptr, OrigCntVar);
+          buildVarDecl(SemaRef, {}, CntTy, FloorCntName, nullptr, OrigCntVar);
       FloorIndVars[I] = FloorCntDecl;
     }
 
@@ -15130,7 +15168,8 @@ StmtResult Sema::ActOnOpenMPTileDirective(ArrayRef<OMPClause *> Clauses,
       // used by the expressions to derive the original iteration variable's
       // value from the logical iteration number.
       auto *TileCntDecl = cast<VarDecl>(IterVarRef->getDecl());
-      TileCntDecl->setDeclName(&PP.getIdentifierTable().get(TileCntName));
+      TileCntDecl->setDeclName(
+          &SemaRef.PP.getIdentifierTable().get(TileCntName));
       TileIndVars[I] = TileCntDecl;
     }
     for (auto &P : OriginalInits[I]) {
@@ -15159,17 +15198,18 @@ StmtResult Sema::ActOnOpenMPTileDirective(ArrayRef<OMPClause *> Clauses,
     auto *OrigCntVar = cast<DeclRefExpr>(LoopHelper.Counters[0]);
     QualType CntTy = OrigCntVar->getType();
     Expr *DimTileSize = SizesClause->getSizesRefs()[I];
-    Scope *CurScope = getCurScope();
+    Scope *CurScope = SemaRef.getCurScope();
 
     // Commonly used variables.
-    DeclRefExpr *TileIV = buildDeclRefExpr(*this, TileIndVars[I], CntTy,
+    DeclRefExpr *TileIV = buildDeclRefExpr(SemaRef, TileIndVars[I], CntTy,
                                            OrigCntVar->getExprLoc());
-    DeclRefExpr *FloorIV = buildDeclRefExpr(*this, FloorIndVars[I], CntTy,
+    DeclRefExpr *FloorIV = buildDeclRefExpr(SemaRef, FloorIndVars[I], CntTy,
                                             OrigCntVar->getExprLoc());
 
     // For init-statement: auto .tile.iv = .floor.iv
-    AddInitializerToDecl(TileIndVars[I], DefaultLvalueConversion(FloorIV).get(),
-                         /*DirectInit=*/false);
+    SemaRef.AddInitializerToDecl(TileIndVars[I],
+                                 SemaRef.DefaultLvalueConversion(FloorIV).get(),
+                                 /*DirectInit=*/false);
     Decl *CounterDecl = TileIndVars[I];
     StmtResult InitStmt = new (Context)
         DeclStmt(DeclGroupRef::Create(Context, &CounterDecl, 1),
@@ -15179,28 +15219,29 @@ StmtResult Sema::ActOnOpenMPTileDirective(ArrayRef<OMPClause *> Clauses,
 
     // For cond-expression: .tile.iv < min(.floor.iv + DimTileSize,
     // NumIterations)
-    ExprResult EndOfTile = BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(),
-                                      BO_Add, FloorIV, DimTileSize);
+    ExprResult EndOfTile = SemaRef.BuildBinOp(
+        CurScope, LoopHelper.Cond->getExprLoc(), BO_Add, FloorIV, DimTileSize);
     if (!EndOfTile.isUsable())
       return StmtError();
     ExprResult IsPartialTile =
-        BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(), BO_LT,
-                   NumIterations, EndOfTile.get());
+        SemaRef.BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(), BO_LT,
+                           NumIterations, EndOfTile.get());
     if (!IsPartialTile.isUsable())
       return StmtError();
-    ExprResult MinTileAndIterSpace = ActOnConditionalOp(
+    ExprResult MinTileAndIterSpace = SemaRef.ActOnConditionalOp(
         LoopHelper.Cond->getBeginLoc(), LoopHelper.Cond->getEndLoc(),
         IsPartialTile.get(), NumIterations, EndOfTile.get());
     if (!MinTileAndIterSpace.isUsable())
       return StmtError();
-    ExprResult CondExpr = BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(),
-                                     BO_LT, TileIV, MinTileAndIterSpace.get());
+    ExprResult CondExpr =
+        SemaRef.BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(), BO_LT,
+                           TileIV, MinTileAndIterSpace.get());
     if (!CondExpr.isUsable())
       return StmtError();
 
     // For incr-statement: ++.tile.iv
-    ExprResult IncrStmt =
-        BuildUnaryOp(CurScope, LoopHelper.Inc->getExprLoc(), UO_PreInc, TileIV);
+    ExprResult IncrStmt = SemaRef.BuildUnaryOp(
+        CurScope, LoopHelper.Inc->getExprLoc(), UO_PreInc, TileIV);
     if (!IncrStmt.isUsable())
       return StmtError();
 
@@ -15235,16 +15276,16 @@ StmtResult Sema::ActOnOpenMPTileDirective(ArrayRef<OMPClause *> Clauses,
     DeclRefExpr *OrigCntVar = cast<DeclRefExpr>(LoopHelper.Counters[0]);
     QualType CntTy = OrigCntVar->getType();
     Expr *DimTileSize = SizesClause->getSizesRefs()[I];
-    Scope *CurScope = getCurScope();
+    Scope *CurScope = SemaRef.getCurScope();
 
     // Commonly used variables.
-    DeclRefExpr *FloorIV = buildDeclRefExpr(*this, FloorIndVars[I], CntTy,
+    DeclRefExpr *FloorIV = buildDeclRefExpr(SemaRef, FloorIndVars[I], CntTy,
                                             OrigCntVar->getExprLoc());
 
     // For init-statement: auto .floor.iv = 0
-    AddInitializerToDecl(
+    SemaRef.AddInitializerToDecl(
         FloorIndVars[I],
-        ActOnIntegerConstant(LoopHelper.Init->getExprLoc(), 0).get(),
+        SemaRef.ActOnIntegerConstant(LoopHelper.Init->getExprLoc(), 0).get(),
         /*DirectInit=*/false);
     Decl *CounterDecl = FloorIndVars[I];
     StmtResult InitStmt = new (Context)
@@ -15254,14 +15295,15 @@ StmtResult Sema::ActOnOpenMPTileDirective(ArrayRef<OMPClause *> Clauses,
       return StmtError();
 
     // For cond-expression: .floor.iv < NumIterations
-    ExprResult CondExpr = BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(),
-                                     BO_LT, FloorIV, NumIterations);
+    ExprResult CondExpr = SemaRef.BuildBinOp(
+        CurScope, LoopHelper.Cond->getExprLoc(), BO_LT, FloorIV, NumIterations);
     if (!CondExpr.isUsable())
       return StmtError();
 
     // For incr-statement: .floor.iv += DimTileSize
-    ExprResult IncrStmt = BuildBinOp(CurScope, LoopHelper.Inc->getExprLoc(),
-                                     BO_AddAssign, FloorIV, DimTileSize);
+    ExprResult IncrStmt =
+        SemaRef.BuildBinOp(CurScope, LoopHelper.Inc->getExprLoc(), BO_AddAssign,
+                           FloorIV, DimTileSize);
     if (!IncrStmt.isUsable())
       return StmtError();
 
@@ -15276,15 +15318,18 @@ StmtResult Sema::ActOnOpenMPTileDirective(ArrayRef<OMPClause *> Clauses,
                                   buildPreInits(Context, PreInits));
 }
 
-StmtResult Sema::ActOnOpenMPUnrollDirective(ArrayRef<OMPClause *> Clauses,
-                                            Stmt *AStmt,
-                                            SourceLocation StartLoc,
-                                            SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPUnrollDirective(ArrayRef<OMPClause *> Clauses,
+                                                  Stmt *AStmt,
+                                                  SourceLocation StartLoc,
+                                                  SourceLocation EndLoc) {
+  ASTContext &Context = getASTContext();
+  Scope *CurScope = SemaRef.getCurScope();
   // Empty statement should only be possible if there already was an error.
   if (!AStmt)
     return StmtError();
 
-  if (checkMutuallyExclusiveClauses(*this, Clauses, {OMPC_partial, OMPC_full}))
+  if (checkMutuallyExclusiveClauses(SemaRef, Clauses,
+                                    {OMPC_partial, OMPC_full}))
     return StmtError();
 
   const OMPFullClause *FullClause =
@@ -15307,7 +15352,7 @@ StmtResult Sema::ActOnOpenMPUnrollDirective(ArrayRef<OMPClause *> Clauses,
   unsigned NumGeneratedLoops = PartialClause ? 1 : 0;
 
   // Delay unrolling to when template is completely instantiated.
-  if (CurContext->isDependentContext())
+  if (SemaRef.CurContext->isDependentContext())
     return OMPUnrollDirective::Create(Context, StartLoc, EndLoc, Clauses, AStmt,
                                       NumGeneratedLoops, nullptr, nullptr);
 
@@ -15412,8 +15457,8 @@ StmtResult Sema::ActOnOpenMPUnrollDirective(ArrayRef<OMPClause *> Clauses,
   assert(Factor > 0 && "Expected positive unroll factor");
   auto MakeFactorExpr = [this, Factor, IVTy, FactorLoc]() {
     return IntegerLiteral::Create(
-        Context, llvm::APInt(Context.getIntWidth(IVTy), Factor), IVTy,
-        FactorLoc);
+        getASTContext(), llvm::APInt(getASTContext().getIntWidth(IVTy), Factor),
+        IVTy, FactorLoc);
   };
 
   // Iteration variable SourceLocations.
@@ -15430,30 +15475,31 @@ StmtResult Sema::ActOnOpenMPUnrollDirective(ArrayRef<OMPClause *> Clauses,
 
   // Create the iteration variable for the unrolled loop.
   VarDecl *OuterIVDecl =
-      buildVarDecl(*this, {}, IVTy, OuterIVName, nullptr, OrigVar);
+      buildVarDecl(SemaRef, {}, IVTy, OuterIVName, nullptr, OrigVar);
   auto MakeOuterRef = [this, OuterIVDecl, IVTy, OrigVarLoc]() {
-    return buildDeclRefExpr(*this, OuterIVDecl, IVTy, OrigVarLoc);
+    return buildDeclRefExpr(SemaRef, OuterIVDecl, IVTy, OrigVarLoc);
   };
 
   // Iteration variable for the inner loop: Reuse the iteration variable created
   // by checkOpenMPLoop.
   auto *InnerIVDecl = cast<VarDecl>(IterationVarRef->getDecl());
-  InnerIVDecl->setDeclName(&PP.getIdentifierTable().get(InnerIVName));
+  InnerIVDecl->setDeclName(&SemaRef.PP.getIdentifierTable().get(InnerIVName));
   auto MakeInnerRef = [this, InnerIVDecl, IVTy, OrigVarLoc]() {
-    return buildDeclRefExpr(*this, InnerIVDecl, IVTy, OrigVarLoc);
+    return buildDeclRefExpr(SemaRef, InnerIVDecl, IVTy, OrigVarLoc);
   };
 
   // Make a copy of the NumIterations expression for each use: By the AST
   // constraints, every expression object in a DeclContext must be unique.
-  CaptureVars CopyTransformer(*this);
+  CaptureVars CopyTransformer(SemaRef);
   auto MakeNumIterations = [&CopyTransformer, &LoopHelper]() -> Expr * {
     return AssertSuccess(
         CopyTransformer.TransformExpr(LoopHelper.NumIterations));
   };
 
   // Inner For init-statement: auto .unroll_inner.iv = .unrolled.iv
-  ExprResult LValueConv = DefaultLvalueConversion(MakeOuterRef());
-  AddInitializerToDecl(InnerIVDecl, LValueConv.get(), /*DirectInit=*/false);
+  ExprResult LValueConv = SemaRef.DefaultLvalueConversion(MakeOuterRef());
+  SemaRef.AddInitializerToDecl(InnerIVDecl, LValueConv.get(),
+                               /*DirectInit=*/false);
   StmtResult InnerInit = new (Context)
       DeclStmt(DeclGroupRef(InnerIVDecl), OrigVarLocBegin, OrigVarLocEnd);
   if (!InnerInit.isUsable())
@@ -15466,28 +15512,30 @@ StmtResult Sema::ActOnOpenMPUnrollDirective(ArrayRef<OMPClause *> Clauses,
   // \endcode
   // This conjunction of two conditions allows ScalarEvolution to derive the
   // maximum trip count of the inner loop.
-  ExprResult EndOfTile = BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(),
-                                    BO_Add, MakeOuterRef(), MakeFactorExpr());
+  ExprResult EndOfTile =
+      SemaRef.BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(), BO_Add,
+                         MakeOuterRef(), MakeFactorExpr());
   if (!EndOfTile.isUsable())
     return StmtError();
-  ExprResult InnerCond1 = BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(),
-                                     BO_LT, MakeInnerRef(), EndOfTile.get());
+  ExprResult InnerCond1 =
+      SemaRef.BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(), BO_LT,
+                         MakeInnerRef(), EndOfTile.get());
   if (!InnerCond1.isUsable())
     return StmtError();
   ExprResult InnerCond2 =
-      BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(), BO_LT, MakeInnerRef(),
-                 MakeNumIterations());
+      SemaRef.BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(), BO_LT,
+                         MakeInnerRef(), MakeNumIterations());
   if (!InnerCond2.isUsable())
     return StmtError();
   ExprResult InnerCond =
-      BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(), BO_LAnd,
-                 InnerCond1.get(), InnerCond2.get());
+      SemaRef.BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(), BO_LAnd,
+                         InnerCond1.get(), InnerCond2.get());
   if (!InnerCond.isUsable())
     return StmtError();
 
   // Inner For incr-statement: ++.unroll_inner.iv
-  ExprResult InnerIncr = BuildUnaryOp(CurScope, LoopHelper.Inc->getExprLoc(),
-                                      UO_PreInc, MakeInnerRef());
+  ExprResult InnerIncr = SemaRef.BuildUnaryOp(
+      CurScope, LoopHelper.Inc->getExprLoc(), UO_PreInc, MakeInnerRef());
   if (!InnerIncr.isUsable())
     return StmtError();
 
@@ -15496,7 +15544,7 @@ StmtResult Sema::ActOnOpenMPUnrollDirective(ArrayRef<OMPClause *> Clauses,
   InnerBodyStmts.append(LoopHelper.Updates.begin(), LoopHelper.Updates.end());
   InnerBodyStmts.push_back(Body);
   CompoundStmt *InnerBody =
-      CompoundStmt::Create(Context, InnerBodyStmts, FPOptionsOverride(),
+      CompoundStmt::Create(getASTContext(), InnerBodyStmts, FPOptionsOverride(),
                            Body->getBeginLoc(), Body->getEndLoc());
   ForStmt *InnerFor = new (Context)
       ForStmt(Context, InnerInit.get(), InnerCond.get(), nullptr,
@@ -15518,12 +15566,13 @@ StmtResult Sema::ActOnOpenMPUnrollDirective(ArrayRef<OMPClause *> Clauses,
   LoopHintAttr *UnrollHintAttr =
       LoopHintAttr::CreateImplicit(Context, LoopHintAttr::UnrollCount,
                                    LoopHintAttr::Numeric, MakeFactorExpr());
-  AttributedStmt *InnerUnrolled =
-      AttributedStmt::Create(Context, StartLoc, {UnrollHintAttr}, InnerFor);
+  AttributedStmt *InnerUnrolled = AttributedStmt::Create(
+      getASTContext(), StartLoc, {UnrollHintAttr}, InnerFor);
 
   // Outer For init-statement: auto .unrolled.iv = 0
-  AddInitializerToDecl(
-      OuterIVDecl, ActOnIntegerConstant(LoopHelper.Init->getExprLoc(), 0).get(),
+  SemaRef.AddInitializerToDecl(
+      OuterIVDecl,
+      SemaRef.ActOnIntegerConstant(LoopHelper.Init->getExprLoc(), 0).get(),
       /*DirectInit=*/false);
   StmtResult OuterInit = new (Context)
       DeclStmt(DeclGroupRef(OuterIVDecl), OrigVarLocBegin, OrigVarLocEnd);
@@ -15532,15 +15581,15 @@ StmtResult Sema::ActOnOpenMPUnrollDirective(ArrayRef<OMPClause *> Clauses,
 
   // Outer For cond-expression: .unrolled.iv < NumIterations
   ExprResult OuterConde =
-      BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(), BO_LT, MakeOuterRef(),
-                 MakeNumIterations());
+      SemaRef.BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(), BO_LT,
+                         MakeOuterRef(), MakeNumIterations());
   if (!OuterConde.isUsable())
     return StmtError();
 
   // Outer For incr-statement: .unrolled.iv += Factor
   ExprResult OuterIncr =
-      BuildBinOp(CurScope, LoopHelper.Inc->getExprLoc(), BO_AddAssign,
-                 MakeOuterRef(), MakeFactorExpr());
+      SemaRef.BuildBinOp(CurScope, LoopHelper.Inc->getExprLoc(), BO_AddAssign,
+                         MakeOuterRef(), MakeFactorExpr());
   if (!OuterIncr.isUsable())
     return StmtError();
 
@@ -15555,10 +15604,11 @@ StmtResult Sema::ActOnOpenMPUnrollDirective(ArrayRef<OMPClause *> Clauses,
                                     buildPreInits(Context, PreInits));
 }
 
-OMPClause *Sema::ActOnOpenMPSingleExprClause(OpenMPClauseKind Kind, Expr *Expr,
-                                             SourceLocation StartLoc,
-                                             SourceLocation LParenLoc,
-                                             SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPSingleExprClause(OpenMPClauseKind Kind,
+                                                   Expr *Expr,
+                                                   SourceLocation StartLoc,
+                                                   SourceLocation LParenLoc,
+                                                   SourceLocation EndLoc) {
   OMPClause *Res = nullptr;
   switch (Kind) {
   case OMPC_final:
@@ -16646,19 +16696,17 @@ static OpenMPDirectiveKind getOpenMPCaptureRegionForClause(
   return CaptureRegion;
 }
 
-OMPClause *Sema::ActOnOpenMPIfClause(OpenMPDirectiveKind NameModifier,
-                                     Expr *Condition, SourceLocation StartLoc,
-                                     SourceLocation LParenLoc,
-                                     SourceLocation NameModifierLoc,
-                                     SourceLocation ColonLoc,
-                                     SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPIfClause(
+    OpenMPDirectiveKind NameModifier, Expr *Condition, SourceLocation StartLoc,
+    SourceLocation LParenLoc, SourceLocation NameModifierLoc,
+    SourceLocation ColonLoc, SourceLocation EndLoc) {
   Expr *ValExpr = Condition;
   Stmt *HelperValStmt = nullptr;
   OpenMPDirectiveKind CaptureRegion = OMPD_unknown;
   if (!Condition->isValueDependent() && !Condition->isTypeDependent() &&
       !Condition->isInstantiationDependent() &&
       !Condition->containsUnexpandedParameterPack()) {
-    ExprResult Val = CheckBooleanCondition(StartLoc, Condition);
+    ExprResult Val = SemaRef.CheckBooleanCondition(StartLoc, Condition);
     if (Val.isInvalid())
       return nullptr;
 
@@ -16666,57 +16714,60 @@ OMPClause *Sema::ActOnOpenMPIfClause(OpenMPDirectiveKind NameModifier,
 
     OpenMPDirectiveKind DKind = DSAStack->getCurrentDirective();
     CaptureRegion = getOpenMPCaptureRegionForClause(
-        DKind, OMPC_if, LangOpts.OpenMP, NameModifier);
-    if (CaptureRegion != OMPD_unknown && !CurContext->isDependentContext()) {
-      ValExpr = MakeFullExpr(ValExpr).get();
+        DKind, OMPC_if, getLangOpts().OpenMP, NameModifier);
+    if (CaptureRegion != OMPD_unknown &&
+        !SemaRef.CurContext->isDependentContext()) {
+      ValExpr = SemaRef.MakeFullExpr(ValExpr).get();
       llvm::MapVector<const Expr *, DeclRefExpr *> Captures;
-      ValExpr = tryBuildCapture(*this, ValExpr, Captures).get();
-      HelperValStmt = buildPreInits(Context, Captures);
+      ValExpr = tryBuildCapture(SemaRef, ValExpr, Captures).get();
+      HelperValStmt = buildPreInits(getASTContext(), Captures);
     }
   }
 
-  return new (Context)
+  return new (getASTContext())
       OMPIfClause(NameModifier, ValExpr, HelperValStmt, CaptureRegion, StartLoc,
                   LParenLoc, NameModifierLoc, ColonLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPFinalClause(Expr *Condition,
-                                        SourceLocation StartLoc,
-                                        SourceLocation LParenLoc,
-                                        SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPFinalClause(Expr *Condition,
+                                              SourceLocation StartLoc,
+                                              SourceLocation LParenLoc,
+                                              SourceLocation EndLoc) {
   Expr *ValExpr = Condition;
   Stmt *HelperValStmt = nullptr;
   OpenMPDirectiveKind CaptureRegion = OMPD_unknown;
   if (!Condition->isValueDependent() && !Condition->isTypeDependent() &&
       !Condition->isInstantiationDependent() &&
       !Condition->containsUnexpandedParameterPack()) {
-    ExprResult Val = CheckBooleanCondition(StartLoc, Condition);
+    ExprResult Val = SemaRef.CheckBooleanCondition(StartLoc, Condition);
     if (Val.isInvalid())
       return nullptr;
 
-    ValExpr = MakeFullExpr(Val.get()).get();
+    ValExpr = SemaRef.MakeFullExpr(Val.get()).get();
 
     OpenMPDirectiveKind DKind = DSAStack->getCurrentDirective();
-    CaptureRegion =
-        getOpenMPCaptureRegionForClause(DKind, OMPC_final, LangOpts.OpenMP);
-    if (CaptureRegion != OMPD_unknown && !CurContext->isDependentContext()) {
-      ValExpr = MakeFullExpr(ValExpr).get();
+    CaptureRegion = getOpenMPCaptureRegionForClause(DKind, OMPC_final,
+                                                    getLangOpts().OpenMP);
+    if (CaptureRegion != OMPD_unknown &&
+        !SemaRef.CurContext->isDependentContext()) {
+      ValExpr = SemaRef.MakeFullExpr(ValExpr).get();
       llvm::MapVector<const Expr *, DeclRefExpr *> Captures;
-      ValExpr = tryBuildCapture(*this, ValExpr, Captures).get();
-      HelperValStmt = buildPreInits(Context, Captures);
+      ValExpr = tryBuildCapture(SemaRef, ValExpr, Captures).get();
+      HelperValStmt = buildPreInits(getASTContext(), Captures);
     }
   }
 
-  return new (Context) OMPFinalClause(ValExpr, HelperValStmt, CaptureRegion,
-                                      StartLoc, LParenLoc, EndLoc);
+  return new (getASTContext()) OMPFinalClause(
+      ValExpr, HelperValStmt, CaptureRegion, StartLoc, LParenLoc, EndLoc);
 }
 
-ExprResult Sema::PerformOpenMPImplicitIntegerConversion(SourceLocation Loc,
-                                                        Expr *Op) {
+ExprResult
+SemaOpenMP::PerformOpenMPImplicitIntegerConversion(SourceLocation Loc,
+                                                   Expr *Op) {
   if (!Op)
     return ExprError();
 
-  class IntConvertDiagnoser : public ICEConvertDiagnoser {
+  class IntConvertDiagnoser : public Sema::ICEConvertDiagnoser {
   public:
     IntConvertDiagnoser()
         : ICEConvertDiagnoser(/*AllowScopedEnumerations*/ false, false, true) {}
@@ -16752,7 +16803,7 @@ ExprResult Sema::PerformOpenMPImplicitIntegerConversion(SourceLocation Loc,
       llvm_unreachable("conversion functions are permitted");
     }
   } ConvertDiagnoser;
-  return PerformContextualImplicitConversion(Loc, Op, ConvertDiagnoser);
+  return SemaRef.PerformContextualImplicitConversion(Loc, Op, ConvertDiagnoser);
 }
 
 static bool
@@ -16765,7 +16816,7 @@ isNonNegativeIntegerValue(Expr *&ValExpr, Sema &SemaRef, OpenMPClauseKind CKind,
       !ValExpr->isInstantiationDependent()) {
     SourceLocation Loc = ValExpr->getExprLoc();
     ExprResult Value =
-        SemaRef.PerformOpenMPImplicitIntegerConversion(Loc, ValExpr);
+        SemaRef.OpenMP().PerformOpenMPImplicitIntegerConversion(Loc, ValExpr);
     if (Value.isInvalid())
       return false;
 
@@ -16797,37 +16848,37 @@ isNonNegativeIntegerValue(Expr *&ValExpr, Sema &SemaRef, OpenMPClauseKind CKind,
   return true;
 }
 
-OMPClause *Sema::ActOnOpenMPNumThreadsClause(Expr *NumThreads,
-                                             SourceLocation StartLoc,
-                                             SourceLocation LParenLoc,
-                                             SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPNumThreadsClause(Expr *NumThreads,
+                                                   SourceLocation StartLoc,
+                                                   SourceLocation LParenLoc,
+                                                   SourceLocation EndLoc) {
   Expr *ValExpr = NumThreads;
   Stmt *HelperValStmt = nullptr;
 
   // OpenMP [2.5, Restrictions]
   //  The num_threads expression must evaluate to a positive integer value.
-  if (!isNonNegativeIntegerValue(ValExpr, *this, OMPC_num_threads,
+  if (!isNonNegativeIntegerValue(ValExpr, SemaRef, OMPC_num_threads,
                                  /*StrictlyPositive=*/true))
     return nullptr;
 
   OpenMPDirectiveKind DKind = DSAStack->getCurrentDirective();
-  OpenMPDirectiveKind CaptureRegion =
-      getOpenMPCaptureRegionForClause(DKind, OMPC_num_threads, LangOpts.OpenMP);
-  if (CaptureRegion != OMPD_unknown && !CurContext->isDependentContext()) {
-    ValExpr = MakeFullExpr(ValExpr).get();
+  OpenMPDirectiveKind CaptureRegion = getOpenMPCaptureRegionForClause(
+      DKind, OMPC_num_threads, getLangOpts().OpenMP);
+  if (CaptureRegion != OMPD_unknown &&
+      !SemaRef.CurContext->isDependentContext()) {
+    ValExpr = SemaRef.MakeFullExpr(ValExpr).get();
     llvm::MapVector<const Expr *, DeclRefExpr *> Captures;
-    ValExpr = tryBuildCapture(*this, ValExpr, Captures).get();
-    HelperValStmt = buildPreInits(Context, Captures);
+    ValExpr = tryBuildCapture(SemaRef, ValExpr, Captures).get();
+    HelperValStmt = buildPreInits(getASTContext(), Captures);
   }
 
-  return new (Context) OMPNumThreadsClause(
+  return new (getASTContext()) OMPNumThreadsClause(
       ValExpr, HelperValStmt, CaptureRegion, StartLoc, LParenLoc, EndLoc);
 }
 
-ExprResult Sema::VerifyPositiveIntegerConstantInClause(Expr *E,
-                                                       OpenMPClauseKind CKind,
-                                                       bool StrictlyPositive,
-                                                       bool SuppressExprDiags) {
+ExprResult SemaOpenMP::VerifyPositiveIntegerConstantInClause(
+    Expr *E, OpenMPClauseKind CKind, bool StrictlyPositive,
+    bool SuppressExprDiags) {
   if (!E)
     return ExprError();
   if (E->isValueDependent() || E->isTypeDependent() ||
@@ -16841,14 +16892,16 @@ ExprResult Sema::VerifyPositiveIntegerConstantInClause(Expr *E,
     // expression.
     struct SuppressedDiagnoser : public Sema::VerifyICEDiagnoser {
       SuppressedDiagnoser() : VerifyICEDiagnoser(/*Suppress=*/true) {}
-      Sema::SemaDiagnosticBuilder diagnoseNotICE(Sema &S,
-                                                 SourceLocation Loc) override {
+      SemaBase::SemaDiagnosticBuilder
+      diagnoseNotICE(Sema &S, SourceLocation Loc) override {
         llvm_unreachable("Diagnostic suppressed");
       }
     } Diagnoser;
-    ICE = VerifyIntegerConstantExpression(E, &Result, Diagnoser, AllowFold);
+    ICE = SemaRef.VerifyIntegerConstantExpression(E, &Result, Diagnoser,
+                                                  Sema::AllowFold);
   } else {
-    ICE = VerifyIntegerConstantExpression(E, &Result, /*FIXME*/ AllowFold);
+    ICE = SemaRef.VerifyIntegerConstantExpression(E, &Result,
+                                                  /*FIXME*/ Sema::AllowFold);
   }
   if (ICE.isInvalid())
     return ExprError();
@@ -16872,29 +16925,31 @@ ExprResult Sema::VerifyPositiveIntegerConstantInClause(Expr *E,
   return ICE;
 }
 
-OMPClause *Sema::ActOnOpenMPSafelenClause(Expr *Len, SourceLocation StartLoc,
-                                          SourceLocation LParenLoc,
-                                          SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPSafelenClause(Expr *Len,
+                                                SourceLocation StartLoc,
+                                                SourceLocation LParenLoc,
+                                                SourceLocation EndLoc) {
   // OpenMP [2.8.1, simd construct, Description]
   // The parameter of the safelen clause must be a constant
   // positive integer expression.
   ExprResult Safelen = VerifyPositiveIntegerConstantInClause(Len, OMPC_safelen);
   if (Safelen.isInvalid())
     return nullptr;
-  return new (Context)
+  return new (getASTContext())
       OMPSafelenClause(Safelen.get(), StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPSimdlenClause(Expr *Len, SourceLocation StartLoc,
-                                          SourceLocation LParenLoc,
-                                          SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPSimdlenClause(Expr *Len,
+                                                SourceLocation StartLoc,
+                                                SourceLocation LParenLoc,
+                                                SourceLocation EndLoc) {
   // OpenMP [2.8.1, simd construct, Description]
   // The parameter of the simdlen clause must be a constant
   // positive integer expression.
   ExprResult Simdlen = VerifyPositiveIntegerConstantInClause(Len, OMPC_simdlen);
   if (Simdlen.isInvalid())
     return nullptr;
-  return new (Context)
+  return new (getASTContext())
       OMPSimdlenClause(Simdlen.get(), StartLoc, LParenLoc, EndLoc);
 }
 
@@ -16954,31 +17009,32 @@ static bool findOMPAllocatorHandleT(Sema &S, SourceLocation Loc,
   return true;
 }
 
-OMPClause *Sema::ActOnOpenMPAllocatorClause(Expr *A, SourceLocation StartLoc,
-                                            SourceLocation LParenLoc,
-                                            SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPAllocatorClause(Expr *A,
+                                                  SourceLocation StartLoc,
+                                                  SourceLocation LParenLoc,
+                                                  SourceLocation EndLoc) {
   // OpenMP [2.11.3, allocate Directive, Description]
   // allocator is an expression of omp_allocator_handle_t type.
-  if (!findOMPAllocatorHandleT(*this, A->getExprLoc(), DSAStack))
+  if (!findOMPAllocatorHandleT(SemaRef, A->getExprLoc(), DSAStack))
     return nullptr;
 
-  ExprResult Allocator = DefaultLvalueConversion(A);
+  ExprResult Allocator = SemaRef.DefaultLvalueConversion(A);
   if (Allocator.isInvalid())
     return nullptr;
-  Allocator = PerformImplicitConversion(Allocator.get(),
-                                        DSAStack->getOMPAllocatorHandleT(),
-                                        Sema::AA_Initializing,
-                                        /*AllowExplicit=*/true);
+  Allocator = SemaRef.PerformImplicitConversion(
+      Allocator.get(), DSAStack->getOMPAllocatorHandleT(),
+      Sema::AA_Initializing,
+      /*AllowExplicit=*/true);
   if (Allocator.isInvalid())
     return nullptr;
-  return new (Context)
+  return new (getASTContext())
       OMPAllocatorClause(Allocator.get(), StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPCollapseClause(Expr *NumForLoops,
-                                           SourceLocation StartLoc,
-                                           SourceLocation LParenLoc,
-                                           SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPCollapseClause(Expr *NumForLoops,
+                                                 SourceLocation StartLoc,
+                                                 SourceLocation LParenLoc,
+                                                 SourceLocation EndLoc) {
   // OpenMP [2.7.1, loop construct, Description]
   // OpenMP [2.8.1, simd construct, Description]
   // OpenMP [2.9.6, distribute construct, Description]
@@ -16988,14 +17044,14 @@ OMPClause *Sema::ActOnOpenMPCollapseClause(Expr *NumForLoops,
       VerifyPositiveIntegerConstantInClause(NumForLoops, OMPC_collapse);
   if (NumForLoopsResult.isInvalid())
     return nullptr;
-  return new (Context)
+  return new (getASTContext())
       OMPCollapseClause(NumForLoopsResult.get(), StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPOrderedClause(SourceLocation StartLoc,
-                                          SourceLocation EndLoc,
-                                          SourceLocation LParenLoc,
-                                          Expr *NumForLoops) {
+OMPClause *SemaOpenMP::ActOnOpenMPOrderedClause(SourceLocation StartLoc,
+                                                SourceLocation EndLoc,
+                                                SourceLocation LParenLoc,
+                                                Expr *NumForLoops) {
   // OpenMP [2.7.1, loop construct, Description]
   // OpenMP [2.8.1, simd construct, Description]
   // OpenMP [2.9.6, distribute construct, Description]
@@ -17010,14 +17066,15 @@ OMPClause *Sema::ActOnOpenMPOrderedClause(SourceLocation StartLoc,
   } else {
     NumForLoops = nullptr;
   }
-  auto *Clause = OMPOrderedClause::Create(
-      Context, NumForLoops, NumForLoops ? DSAStack->getAssociatedLoops() : 0,
-      StartLoc, LParenLoc, EndLoc);
+  auto *Clause =
+      OMPOrderedClause::Create(getASTContext(), NumForLoops,
+                               NumForLoops ? DSAStack->getAssociatedLoops() : 0,
+                               StartLoc, LParenLoc, EndLoc);
   DSAStack->setOrderedRegion(/*IsOrdered=*/true, NumForLoops, Clause);
   return Clause;
 }
 
-OMPClause *Sema::ActOnOpenMPSimpleClause(
+OMPClause *SemaOpenMP::ActOnOpenMPSimpleClause(
     OpenMPClauseKind Kind, unsigned Argument, SourceLocation ArgumentLoc,
     SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation EndLoc) {
   OMPClause *Res = nullptr;
@@ -17159,11 +17216,11 @@ getListOfPossibleValues(OpenMPClauseKind K, unsigned First, unsigned Last,
   return std::string(Out.str());
 }
 
-OMPClause *Sema::ActOnOpenMPDefaultClause(DefaultKind Kind,
-                                          SourceLocation KindKwLoc,
-                                          SourceLocation StartLoc,
-                                          SourceLocation LParenLoc,
-                                          SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPDefaultClause(DefaultKind Kind,
+                                                SourceLocation KindKwLoc,
+                                                SourceLocation StartLoc,
+                                                SourceLocation LParenLoc,
+                                                SourceLocation EndLoc) {
   if (Kind == OMP_DEFAULT_unknown) {
     Diag(KindKwLoc, diag::err_omp_unexpected_clause_value)
         << getListOfPossibleValues(OMPC_default, /*First=*/0,
@@ -17189,39 +17246,39 @@ OMPClause *Sema::ActOnOpenMPDefaultClause(DefaultKind Kind,
     llvm_unreachable("DSA unexpected in OpenMP default clause");
   }
 
-  return new (Context)
+  return new (getASTContext())
       OMPDefaultClause(Kind, KindKwLoc, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPProcBindClause(ProcBindKind Kind,
-                                           SourceLocation KindKwLoc,
-                                           SourceLocation StartLoc,
-                                           SourceLocation LParenLoc,
-                                           SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPProcBindClause(ProcBindKind Kind,
+                                                 SourceLocation KindKwLoc,
+                                                 SourceLocation StartLoc,
+                                                 SourceLocation LParenLoc,
+                                                 SourceLocation EndLoc) {
   if (Kind == OMP_PROC_BIND_unknown) {
     Diag(KindKwLoc, diag::err_omp_unexpected_clause_value)
         << getListOfPossibleValues(OMPC_proc_bind,
                                    /*First=*/unsigned(OMP_PROC_BIND_master),
                                    /*Last=*/
-                                   unsigned(LangOpts.OpenMP > 50
+                                   unsigned(getLangOpts().OpenMP > 50
                                                 ? OMP_PROC_BIND_primary
                                                 : OMP_PROC_BIND_spread) +
                                        1)
         << getOpenMPClauseName(OMPC_proc_bind);
     return nullptr;
   }
-  if (Kind == OMP_PROC_BIND_primary && LangOpts.OpenMP < 51)
+  if (Kind == OMP_PROC_BIND_primary && getLangOpts().OpenMP < 51)
     Diag(KindKwLoc, diag::err_omp_unexpected_clause_value)
         << getListOfPossibleValues(OMPC_proc_bind,
                                    /*First=*/unsigned(OMP_PROC_BIND_master),
                                    /*Last=*/
                                    unsigned(OMP_PROC_BIND_spread) + 1)
         << getOpenMPClauseName(OMPC_proc_bind);
-  return new (Context)
+  return new (getASTContext())
       OMPProcBindClause(Kind, KindKwLoc, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPAtomicDefaultMemOrderClause(
+OMPClause *SemaOpenMP::ActOnOpenMPAtomicDefaultMemOrderClause(
     OpenMPAtomicDefaultMemOrderClauseKind Kind, SourceLocation KindKwLoc,
     SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation EndLoc) {
   if (Kind == OMPC_ATOMIC_DEFAULT_MEM_ORDER_unknown) {
@@ -17232,15 +17289,15 @@ OMPClause *Sema::ActOnOpenMPAtomicDefaultMemOrderClause(
         << getOpenMPClauseName(OMPC_atomic_default_mem_order);
     return nullptr;
   }
-  return new (Context) OMPAtomicDefaultMemOrderClause(Kind, KindKwLoc, StartLoc,
-                                                      LParenLoc, EndLoc);
+  return new (getASTContext()) OMPAtomicDefaultMemOrderClause(
+      Kind, KindKwLoc, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPAtClause(OpenMPAtClauseKind Kind,
-                                     SourceLocation KindKwLoc,
-                                     SourceLocation StartLoc,
-                                     SourceLocation LParenLoc,
-                                     SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPAtClause(OpenMPAtClauseKind Kind,
+                                           SourceLocation KindKwLoc,
+                                           SourceLocation StartLoc,
+                                           SourceLocation LParenLoc,
+                                           SourceLocation EndLoc) {
   if (Kind == OMPC_AT_unknown) {
     Diag(KindKwLoc, diag::err_omp_unexpected_clause_value)
         << getListOfPossibleValues(OMPC_at, /*First=*/0,
@@ -17248,15 +17305,15 @@ OMPClause *Sema::ActOnOpenMPAtClause(OpenMPAtClauseKind Kind,
         << getOpenMPClauseName(OMPC_at);
     return nullptr;
   }
-  return new (Context)
+  return new (getASTContext())
       OMPAtClause(Kind, KindKwLoc, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPSeverityClause(OpenMPSeverityClauseKind Kind,
-                                           SourceLocation KindKwLoc,
-                                           SourceLocation StartLoc,
-                                           SourceLocation LParenLoc,
-                                           SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPSeverityClause(OpenMPSeverityClauseKind Kind,
+                                                 SourceLocation KindKwLoc,
+                                                 SourceLocation StartLoc,
+                                                 SourceLocation LParenLoc,
+                                                 SourceLocation EndLoc) {
   if (Kind == OMPC_SEVERITY_unknown) {
     Diag(KindKwLoc, diag::err_omp_unexpected_clause_value)
         << getListOfPossibleValues(OMPC_severity, /*First=*/0,
@@ -17264,28 +17321,30 @@ OMPClause *Sema::ActOnOpenMPSeverityClause(OpenMPSeverityClauseKind Kind,
         << getOpenMPClauseName(OMPC_severity);
     return nullptr;
   }
-  return new (Context)
+  return new (getASTContext())
       OMPSeverityClause(Kind, KindKwLoc, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPMessageClause(Expr *ME, SourceLocation StartLoc,
-                                          SourceLocation LParenLoc,
-                                          SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPMessageClause(Expr *ME,
+                                                SourceLocation StartLoc,
+                                                SourceLocation LParenLoc,
+                                                SourceLocation EndLoc) {
   assert(ME && "NULL expr in Message clause");
   if (!isa<StringLiteral>(ME)) {
     Diag(ME->getBeginLoc(), diag::warn_clause_expected_string)
         << getOpenMPClauseName(OMPC_message);
     return nullptr;
   }
-  return new (Context) OMPMessageClause(ME, StartLoc, LParenLoc, EndLoc);
+  return new (getASTContext())
+      OMPMessageClause(ME, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPOrderClause(
+OMPClause *SemaOpenMP::ActOnOpenMPOrderClause(
     OpenMPOrderClauseModifier Modifier, OpenMPOrderClauseKind Kind,
     SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation MLoc,
     SourceLocation KindLoc, SourceLocation EndLoc) {
   if (Kind != OMPC_ORDER_concurrent ||
-      (LangOpts.OpenMP < 51 && MLoc.isValid())) {
+      (getLangOpts().OpenMP < 51 && MLoc.isValid())) {
     // Kind should be concurrent,
     // Modifiers introduced in OpenMP 5.1
     static_assert(OMPC_ORDER_unknown > 0,
@@ -17298,7 +17357,7 @@ OMPClause *Sema::ActOnOpenMPOrderClause(
         << getOpenMPClauseName(OMPC_order);
     return nullptr;
   }
-  if (LangOpts.OpenMP >= 51) {
+  if (getLangOpts().OpenMP >= 51) {
     if (Modifier == OMPC_ORDER_MODIFIER_unknown && MLoc.isValid()) {
       Diag(MLoc, diag::err_omp_unexpected_clause_value)
           << getListOfPossibleValues(OMPC_order,
@@ -17315,21 +17374,21 @@ OMPClause *Sema::ActOnOpenMPOrderClause(
       }
     }
   }
-  return new (Context) OMPOrderClause(Kind, KindLoc, StartLoc, LParenLoc,
-                                      EndLoc, Modifier, MLoc);
+  return new (getASTContext()) OMPOrderClause(
+      Kind, KindLoc, StartLoc, LParenLoc, EndLoc, Modifier, MLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPUpdateClause(OpenMPDependClauseKind Kind,
-                                         SourceLocation KindKwLoc,
-                                         SourceLocation StartLoc,
-                                         SourceLocation LParenLoc,
-                                         SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPUpdateClause(OpenMPDependClauseKind Kind,
+                                               SourceLocation KindKwLoc,
+                                               SourceLocation StartLoc,
+                                               SourceLocation LParenLoc,
+                                               SourceLocation EndLoc) {
   if (Kind == OMPC_DEPEND_unknown || Kind == OMPC_DEPEND_source ||
       Kind == OMPC_DEPEND_sink || Kind == OMPC_DEPEND_depobj) {
     SmallVector<unsigned> Except = {
         OMPC_DEPEND_source, OMPC_DEPEND_sink, OMPC_DEPEND_depobj,
         OMPC_DEPEND_outallmemory, OMPC_DEPEND_inoutallmemory};
-    if (LangOpts.OpenMP < 51)
+    if (getLangOpts().OpenMP < 51)
       Except.push_back(OMPC_DEPEND_inoutset);
     Diag(KindKwLoc, diag::err_omp_unexpected_clause_value)
         << getListOfPossibleValues(OMPC_depend, /*First=*/0,
@@ -17337,14 +17396,14 @@ OMPClause *Sema::ActOnOpenMPUpdateClause(OpenMPDependClauseKind Kind,
         << getOpenMPClauseName(OMPC_update);
     return nullptr;
   }
-  return OMPUpdateClause::Create(Context, StartLoc, LParenLoc, KindKwLoc, Kind,
-                                 EndLoc);
+  return OMPUpdateClause::Create(getASTContext(), StartLoc, LParenLoc,
+                                 KindKwLoc, Kind, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPSizesClause(ArrayRef<Expr *> SizeExprs,
-                                        SourceLocation StartLoc,
-                                        SourceLocation LParenLoc,
-                                        SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPSizesClause(ArrayRef<Expr *> SizeExprs,
+                                              SourceLocation StartLoc,
+                                              SourceLocation LParenLoc,
+                                              SourceLocation EndLoc) {
   for (Expr *SizeExpr : SizeExprs) {
     ExprResult NumForLoopsResult = VerifyPositiveIntegerConstantInClause(
         SizeExpr, OMPC_sizes, /*StrictlyPositive=*/true);
@@ -17353,19 +17412,19 @@ OMPClause *Sema::ActOnOpenMPSizesClause(ArrayRef<Expr *> SizeExprs,
   }
 
   DSAStack->setAssociatedLoops(SizeExprs.size());
-  return OMPSizesClause::Create(Context, StartLoc, LParenLoc, EndLoc,
+  return OMPSizesClause::Create(getASTContext(), StartLoc, LParenLoc, EndLoc,
                                 SizeExprs);
 }
 
-OMPClause *Sema::ActOnOpenMPFullClause(SourceLocation StartLoc,
-                                       SourceLocation EndLoc) {
-  return OMPFullClause::Create(Context, StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPFullClause(SourceLocation StartLoc,
+                                             SourceLocation EndLoc) {
+  return OMPFullClause::Create(getASTContext(), StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPPartialClause(Expr *FactorExpr,
-                                          SourceLocation StartLoc,
-                                          SourceLocation LParenLoc,
-                                          SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPPartialClause(Expr *FactorExpr,
+                                                SourceLocation StartLoc,
+                                                SourceLocation LParenLoc,
+                                                SourceLocation EndLoc) {
   if (FactorExpr) {
     // If an argument is specified, it must be a constant (or an unevaluated
     // template expression).
@@ -17376,22 +17435,22 @@ OMPClause *Sema::ActOnOpenMPPartialClause(Expr *FactorExpr,
     FactorExpr = FactorResult.get();
   }
 
-  return OMPPartialClause::Create(Context, StartLoc, LParenLoc, EndLoc,
+  return OMPPartialClause::Create(getASTContext(), StartLoc, LParenLoc, EndLoc,
                                   FactorExpr);
 }
 
-OMPClause *Sema::ActOnOpenMPAlignClause(Expr *A, SourceLocation StartLoc,
-                                        SourceLocation LParenLoc,
-                                        SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPAlignClause(Expr *A, SourceLocation StartLoc,
+                                              SourceLocation LParenLoc,
+                                              SourceLocation EndLoc) {
   ExprResult AlignVal;
   AlignVal = VerifyPositiveIntegerConstantInClause(A, OMPC_align);
   if (AlignVal.isInvalid())
     return nullptr;
-  return OMPAlignClause::Create(Context, AlignVal.get(), StartLoc, LParenLoc,
-                                EndLoc);
+  return OMPAlignClause::Create(getASTContext(), AlignVal.get(), StartLoc,
+                                LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPSingleExprWithArgClause(
+OMPClause *SemaOpenMP::ActOnOpenMPSingleExprWithArgClause(
     OpenMPClauseKind Kind, ArrayRef<unsigned> Argument, Expr *Expr,
     SourceLocation StartLoc, SourceLocation LParenLoc,
     ArrayRef<SourceLocation> ArgumentLoc, SourceLocation DelimLoc,
@@ -17559,13 +17618,13 @@ static bool checkScheduleModifiers(Sema &S, OpenMPScheduleClauseModifier M1,
   return false;
 }
 
-OMPClause *Sema::ActOnOpenMPScheduleClause(
+OMPClause *SemaOpenMP::ActOnOpenMPScheduleClause(
     OpenMPScheduleClauseModifier M1, OpenMPScheduleClauseModifier M2,
     OpenMPScheduleClauseKind Kind, Expr *ChunkSize, SourceLocation StartLoc,
     SourceLocation LParenLoc, SourceLocation M1Loc, SourceLocation M2Loc,
     SourceLocation KindLoc, SourceLocation CommaLoc, SourceLocation EndLoc) {
-  if (checkScheduleModifiers(*this, M1, M2, M1Loc, M2Loc) ||
-      checkScheduleModifiers(*this, M2, M1, M2Loc, M1Loc))
+  if (checkScheduleModifiers(SemaRef, M1, M2, M1Loc, M2Loc) ||
+      checkScheduleModifiers(SemaRef, M2, M1, M2Loc, M1Loc))
     return nullptr;
   // OpenMP, 2.7.1, Loop Construct, Restrictions
   // Either the monotonic modifier or the nonmonotonic modifier can be specified
@@ -17599,7 +17658,7 @@ OMPClause *Sema::ActOnOpenMPScheduleClause(
   // The nonmonotonic modifier can only be specified with schedule(dynamic) or
   // schedule(guided).
   // OpenMP 5.0 does not have this restriction.
-  if (LangOpts.OpenMP < 50 &&
+  if (getLangOpts().OpenMP < 50 &&
       (M1 == OMPC_SCHEDULE_MODIFIER_nonmonotonic ||
        M2 == OMPC_SCHEDULE_MODIFIER_nonmonotonic) &&
       Kind != OMPC_SCHEDULE_dynamic && Kind != OMPC_SCHEDULE_guided) {
@@ -17625,7 +17684,7 @@ OMPClause *Sema::ActOnOpenMPScheduleClause(
       //  chunk_size must be a loop invariant integer expression with a positive
       //  value.
       if (std::optional<llvm::APSInt> Result =
-              ValExpr->getIntegerConstantExpr(Context)) {
+              ValExpr->getIntegerConstantExpr(getASTContext())) {
         if (Result->isSigned() && !Result->isStrictlyPositive()) {
           Diag(ChunkSizeLoc, diag::err_omp_negative_expression_in_clause)
               << "schedule" << 1 << ChunkSize->getSourceRange();
@@ -17633,24 +17692,24 @@ OMPClause *Sema::ActOnOpenMPScheduleClause(
         }
       } else if (getOpenMPCaptureRegionForClause(
                      DSAStack->getCurrentDirective(), OMPC_schedule,
-                     LangOpts.OpenMP) != OMPD_unknown &&
-                 !CurContext->isDependentContext()) {
-        ValExpr = MakeFullExpr(ValExpr).get();
+                     getLangOpts().OpenMP) != OMPD_unknown &&
+                 !SemaRef.CurContext->isDependentContext()) {
+        ValExpr = SemaRef.MakeFullExpr(ValExpr).get();
         llvm::MapVector<const Expr *, DeclRefExpr *> Captures;
-        ValExpr = tryBuildCapture(*this, ValExpr, Captures).get();
-        HelperValStmt = buildPreInits(Context, Captures);
+        ValExpr = tryBuildCapture(SemaRef, ValExpr, Captures).get();
+        HelperValStmt = buildPreInits(getASTContext(), Captures);
       }
     }
   }
 
-  return new (Context)
+  return new (getASTContext())
       OMPScheduleClause(StartLoc, LParenLoc, KindLoc, CommaLoc, EndLoc, Kind,
                         ValExpr, HelperValStmt, M1, M1Loc, M2, M2Loc);
 }
 
-OMPClause *Sema::ActOnOpenMPClause(OpenMPClauseKind Kind,
-                                   SourceLocation StartLoc,
-                                   SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPClause(OpenMPClauseKind Kind,
+                                         SourceLocation StartLoc,
+                                         SourceLocation EndLoc) {
   OMPClause *Res = nullptr;
   switch (Kind) {
   case OMPC_ordered:
@@ -17804,134 +17863,138 @@ OMPClause *Sema::ActOnOpenMPClause(OpenMPClauseKind Kind,
   return Res;
 }
 
-OMPClause *Sema::ActOnOpenMPNowaitClause(SourceLocation StartLoc,
-                                         SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPNowaitClause(SourceLocation StartLoc,
+                                               SourceLocation EndLoc) {
   DSAStack->setNowaitRegion();
-  return new (Context) OMPNowaitClause(StartLoc, EndLoc);
+  return new (getASTContext()) OMPNowaitClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPUntiedClause(SourceLocation StartLoc,
-                                         SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPUntiedClause(SourceLocation StartLoc,
+                                               SourceLocation EndLoc) {
   DSAStack->setUntiedRegion();
-  return new (Context) OMPUntiedClause(StartLoc, EndLoc);
+  return new (getASTContext()) OMPUntiedClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPMergeableClause(SourceLocation StartLoc,
-                                            SourceLocation EndLoc) {
-  return new (Context) OMPMergeableClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPMergeableClause(SourceLocation StartLoc,
+                                                  SourceLocation EndLoc) {
+  return new (getASTContext()) OMPMergeableClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPReadClause(SourceLocation StartLoc,
-                                       SourceLocation EndLoc) {
-  return new (Context) OMPReadClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPReadClause(SourceLocation StartLoc,
+                                             SourceLocation EndLoc) {
+  return new (getASTContext()) OMPReadClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPWriteClause(SourceLocation StartLoc,
-                                        SourceLocation EndLoc) {
-  return new (Context) OMPWriteClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPWriteClause(SourceLocation StartLoc,
+                                              SourceLocation EndLoc) {
+  return new (getASTContext()) OMPWriteClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPUpdateClause(SourceLocation StartLoc,
-                                         SourceLocation EndLoc) {
-  return OMPUpdateClause::Create(Context, StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPUpdateClause(SourceLocation StartLoc,
+                                               SourceLocation EndLoc) {
+  return OMPUpdateClause::Create(getASTContext(), StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPCaptureClause(SourceLocation StartLoc,
-                                          SourceLocation EndLoc) {
-  return new (Context) OMPCaptureClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPCaptureClause(SourceLocation StartLoc,
+                                                SourceLocation EndLoc) {
+  return new (getASTContext()) OMPCaptureClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPCompareClause(SourceLocation StartLoc,
-                                          SourceLocation EndLoc) {
-  return new (Context) OMPCompareClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPCompareClause(SourceLocation StartLoc,
+                                                SourceLocation EndLoc) {
+  return new (getASTContext()) OMPCompareClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPFailClause(SourceLocation StartLoc,
-                                       SourceLocation EndLoc) {
-  return new (Context) OMPFailClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPFailClause(SourceLocation StartLoc,
+                                             SourceLocation EndLoc) {
+  return new (getASTContext()) OMPFailClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPFailClause(
-      OpenMPClauseKind Parameter, SourceLocation KindLoc,
-      SourceLocation StartLoc, SourceLocation LParenLoc,
-      SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPFailClause(OpenMPClauseKind Parameter,
+                                             SourceLocation KindLoc,
+                                             SourceLocation StartLoc,
+                                             SourceLocation LParenLoc,
+                                             SourceLocation EndLoc) {
 
   if (!checkFailClauseParameter(Parameter)) {
     Diag(KindLoc, diag::err_omp_atomic_fail_wrong_or_no_clauses);
     return nullptr;
   }
-  return new (Context)
+  return new (getASTContext())
       OMPFailClause(Parameter, KindLoc, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPSeqCstClause(SourceLocation StartLoc,
-                                         SourceLocation EndLoc) {
-  return new (Context) OMPSeqCstClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPSeqCstClause(SourceLocation StartLoc,
+                                               SourceLocation EndLoc) {
+  return new (getASTContext()) OMPSeqCstClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPAcqRelClause(SourceLocation StartLoc,
-                                         SourceLocation EndLoc) {
-  return new (Context) OMPAcqRelClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPAcqRelClause(SourceLocation StartLoc,
+                                               SourceLocation EndLoc) {
+  return new (getASTContext()) OMPAcqRelClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPAcquireClause(SourceLocation StartLoc,
-                                          SourceLocation EndLoc) {
-  return new (Context) OMPAcquireClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPAcquireClause(SourceLocation StartLoc,
+                                                SourceLocation EndLoc) {
+  return new (getASTContext()) OMPAcquireClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPReleaseClause(SourceLocation StartLoc,
-                                          SourceLocation EndLoc) {
-  return new (Context) OMPReleaseClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPReleaseClause(SourceLocation StartLoc,
+                                                SourceLocation EndLoc) {
+  return new (getASTContext()) OMPReleaseClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPRelaxedClause(SourceLocation StartLoc,
-                                          SourceLocation EndLoc) {
-  return new (Context) OMPRelaxedClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPRelaxedClause(SourceLocation StartLoc,
+                                                SourceLocation EndLoc) {
+  return new (getASTContext()) OMPRelaxedClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPWeakClause(SourceLocation StartLoc,
-                                       SourceLocation EndLoc) {
-  return new (Context) OMPWeakClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPWeakClause(SourceLocation StartLoc,
+                                             SourceLocation EndLoc) {
+  return new (getASTContext()) OMPWeakClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPThreadsClause(SourceLocation StartLoc,
-                                          SourceLocation EndLoc) {
-  return new (Context) OMPThreadsClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPThreadsClause(SourceLocation StartLoc,
+                                                SourceLocation EndLoc) {
+  return new (getASTContext()) OMPThreadsClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPSIMDClause(SourceLocation StartLoc,
-                                       SourceLocation EndLoc) {
-  return new (Context) OMPSIMDClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPSIMDClause(SourceLocation StartLoc,
+                                             SourceLocation EndLoc) {
+  return new (getASTContext()) OMPSIMDClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPNogroupClause(SourceLocation StartLoc,
-                                          SourceLocation EndLoc) {
-  return new (Context) OMPNogroupClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPNogroupClause(SourceLocation StartLoc,
+                                                SourceLocation EndLoc) {
+  return new (getASTContext()) OMPNogroupClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPUnifiedAddressClause(SourceLocation StartLoc,
-                                                 SourceLocation EndLoc) {
-  return new (Context) OMPUnifiedAddressClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPUnifiedAddressClause(SourceLocation StartLoc,
+                                                       SourceLocation EndLoc) {
+  return new (getASTContext()) OMPUnifiedAddressClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPUnifiedSharedMemoryClause(SourceLocation StartLoc,
-                                                      SourceLocation EndLoc) {
-  return new (Context) OMPUnifiedSharedMemoryClause(StartLoc, EndLoc);
+OMPClause *
+SemaOpenMP::ActOnOpenMPUnifiedSharedMemoryClause(SourceLocation StartLoc,
+                                                 SourceLocation EndLoc) {
+  return new (getASTContext()) OMPUnifiedSharedMemoryClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPReverseOffloadClause(SourceLocation StartLoc,
-                                                 SourceLocation EndLoc) {
-  return new (Context) OMPReverseOffloadClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPReverseOffloadClause(SourceLocation StartLoc,
+                                                       SourceLocation EndLoc) {
+  return new (getASTContext()) OMPReverseOffloadClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPDynamicAllocatorsClause(SourceLocation StartLoc,
-                                                    SourceLocation EndLoc) {
-  return new (Context) OMPDynamicAllocatorsClause(StartLoc, EndLoc);
+OMPClause *
+SemaOpenMP::ActOnOpenMPDynamicAllocatorsClause(SourceLocation StartLoc,
+                                               SourceLocation EndLoc) {
+  return new (getASTContext()) OMPDynamicAllocatorsClause(StartLoc, EndLoc);
 }
 
-StmtResult Sema::ActOnOpenMPInteropDirective(ArrayRef<OMPClause *> Clauses,
-                                             SourceLocation StartLoc,
-                                             SourceLocation EndLoc) {
+StmtResult
+SemaOpenMP::ActOnOpenMPInteropDirective(ArrayRef<OMPClause *> Clauses,
+                                        SourceLocation StartLoc,
+                                        SourceLocation EndLoc) {
 
   // OpenMP 5.1 [2.15.1, interop Construct, Restrictions]
   // At least one action-clause must appear on a directive.
@@ -17981,13 +18044,13 @@ StmtResult Sema::ActOnOpenMPInteropDirective(ArrayRef<OMPClause *> Clauses,
 
     if (ClauseKind == OMPC_init) {
       auto *E = cast<OMPInitClause>(C)->getInteropVar();
-      DeclResult = getPrivateItem(*this, E, ELoc, ERange);
+      DeclResult = getPrivateItem(SemaRef, E, ELoc, ERange);
     } else if (ClauseKind == OMPC_use) {
       auto *E = cast<OMPUseClause>(C)->getInteropVar();
-      DeclResult = getPrivateItem(*this, E, ELoc, ERange);
+      DeclResult = getPrivateItem(SemaRef, E, ELoc, ERange);
     } else if (ClauseKind == OMPC_destroy) {
       auto *E = cast<OMPDestroyClause>(C)->getInteropVar();
-      DeclResult = getPrivateItem(*this, E, ELoc, ERange);
+      DeclResult = getPrivateItem(SemaRef, E, ELoc, ERange);
     }
 
     if (DeclResult.first) {
@@ -17999,7 +18062,8 @@ StmtResult Sema::ActOnOpenMPInteropDirective(ArrayRef<OMPClause *> Clauses,
     }
   }
 
-  return OMPInteropDirective::Create(Context, StartLoc, EndLoc, Clauses);
+  return OMPInteropDirective::Create(getASTContext(), StartLoc, EndLoc,
+                                     Clauses);
 }
 
 static bool isValidInteropVariable(Sema &SemaRef, Expr *InteropVarExpr,
@@ -18059,12 +18123,11 @@ static bool isValidInteropVariable(Sema &SemaRef, Expr *InteropVarExpr,
   return true;
 }
 
-OMPClause *
-Sema::ActOnOpenMPInitClause(Expr *InteropVar, OMPInteropInfo &InteropInfo,
-                            SourceLocation StartLoc, SourceLocation LParenLoc,
-                            SourceLocation VarLoc, SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPInitClause(
+    Expr *InteropVar, OMPInteropInfo &InteropInfo, SourceLocation StartLoc,
+    SourceLocation LParenLoc, SourceLocation VarLoc, SourceLocation EndLoc) {
 
-  if (!isValidInteropVariable(*this, InteropVar, VarLoc, OMPC_init))
+  if (!isValidInteropVariable(SemaRef, InteropVar, VarLoc, OMPC_init))
     return nullptr;
 
   // Check prefer_type values.  These foreign-runtime-id values are either
@@ -18073,7 +18136,7 @@ Sema::ActOnOpenMPInitClause(Expr *InteropVar, OMPInteropInfo &InteropInfo,
     if (E->isValueDependent() || E->isTypeDependent() ||
         E->isInstantiationDependent() || E->containsUnexpandedParameterPack())
       continue;
-    if (E->isIntegerConstantExpr(Context))
+    if (E->isIntegerConstantExpr(getASTContext()))
       continue;
     if (isa<StringLiteral>(E))
       continue;
@@ -18081,28 +18144,29 @@ Sema::ActOnOpenMPInitClause(Expr *InteropVar, OMPInteropInfo &InteropInfo,
     return nullptr;
   }
 
-  return OMPInitClause::Create(Context, InteropVar, InteropInfo, StartLoc,
-                               LParenLoc, VarLoc, EndLoc);
+  return OMPInitClause::Create(getASTContext(), InteropVar, InteropInfo,
+                               StartLoc, LParenLoc, VarLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPUseClause(Expr *InteropVar, SourceLocation StartLoc,
-                                      SourceLocation LParenLoc,
-                                      SourceLocation VarLoc,
-                                      SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPUseClause(Expr *InteropVar,
+                                            SourceLocation StartLoc,
+                                            SourceLocation LParenLoc,
+                                            SourceLocation VarLoc,
+                                            SourceLocation EndLoc) {
 
-  if (!isValidInteropVariable(*this, InteropVar, VarLoc, OMPC_use))
+  if (!isValidInteropVariable(SemaRef, InteropVar, VarLoc, OMPC_use))
     return nullptr;
 
-  return new (Context)
+  return new (getASTContext())
       OMPUseClause(InteropVar, StartLoc, LParenLoc, VarLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPDestroyClause(Expr *InteropVar,
-                                          SourceLocation StartLoc,
-                                          SourceLocation LParenLoc,
-                                          SourceLocation VarLoc,
-                                          SourceLocation EndLoc) {
-  if (!InteropVar && LangOpts.OpenMP >= 52 &&
+OMPClause *SemaOpenMP::ActOnOpenMPDestroyClause(Expr *InteropVar,
+                                                SourceLocation StartLoc,
+                                                SourceLocation LParenLoc,
+                                                SourceLocation VarLoc,
+                                                SourceLocation EndLoc) {
+  if (!InteropVar && getLangOpts().OpenMP >= 52 &&
       DSAStack->getCurrentDirective() == OMPD_depobj) {
     Diag(StartLoc, diag::err_omp_expected_clause_argument)
         << getOpenMPClauseName(OMPC_destroy)
@@ -18110,100 +18174,103 @@ OMPClause *Sema::ActOnOpenMPDestroyClause(Expr *InteropVar,
     return nullptr;
   }
   if (InteropVar &&
-      !isValidInteropVariable(*this, InteropVar, VarLoc, OMPC_destroy))
+      !isValidInteropVariable(SemaRef, InteropVar, VarLoc, OMPC_destroy))
     return nullptr;
 
-  return new (Context)
+  return new (getASTContext())
       OMPDestroyClause(InteropVar, StartLoc, LParenLoc, VarLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPNovariantsClause(Expr *Condition,
-                                             SourceLocation StartLoc,
-                                             SourceLocation LParenLoc,
-                                             SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPNovariantsClause(Expr *Condition,
+                                                   SourceLocation StartLoc,
+                                                   SourceLocation LParenLoc,
+                                                   SourceLocation EndLoc) {
   Expr *ValExpr = Condition;
   Stmt *HelperValStmt = nullptr;
   OpenMPDirectiveKind CaptureRegion = OMPD_unknown;
   if (!Condition->isValueDependent() && !Condition->isTypeDependent() &&
       !Condition->isInstantiationDependent() &&
       !Condition->containsUnexpandedParameterPack()) {
-    ExprResult Val = CheckBooleanCondition(StartLoc, Condition);
+    ExprResult Val = SemaRef.CheckBooleanCondition(StartLoc, Condition);
     if (Val.isInvalid())
       return nullptr;
 
-    ValExpr = MakeFullExpr(Val.get()).get();
+    ValExpr = SemaRef.MakeFullExpr(Val.get()).get();
 
     OpenMPDirectiveKind DKind = DSAStack->getCurrentDirective();
     CaptureRegion = getOpenMPCaptureRegionForClause(DKind, OMPC_novariants,
-                                                    LangOpts.OpenMP);
-    if (CaptureRegion != OMPD_unknown && !CurContext->isDependentContext()) {
-      ValExpr = MakeFullExpr(ValExpr).get();
+                                                    getLangOpts().OpenMP);
+    if (CaptureRegion != OMPD_unknown &&
+        !SemaRef.CurContext->isDependentContext()) {
+      ValExpr = SemaRef.MakeFullExpr(ValExpr).get();
       llvm::MapVector<const Expr *, DeclRefExpr *> Captures;
-      ValExpr = tryBuildCapture(*this, ValExpr, Captures).get();
-      HelperValStmt = buildPreInits(Context, Captures);
+      ValExpr = tryBuildCapture(SemaRef, ValExpr, Captures).get();
+      HelperValStmt = buildPreInits(getASTContext(), Captures);
     }
   }
 
-  return new (Context) OMPNovariantsClause(
+  return new (getASTContext()) OMPNovariantsClause(
       ValExpr, HelperValStmt, CaptureRegion, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPNocontextClause(Expr *Condition,
-                                            SourceLocation StartLoc,
-                                            SourceLocation LParenLoc,
-                                            SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPNocontextClause(Expr *Condition,
+                                                  SourceLocation StartLoc,
+                                                  SourceLocation LParenLoc,
+                                                  SourceLocation EndLoc) {
   Expr *ValExpr = Condition;
   Stmt *HelperValStmt = nullptr;
   OpenMPDirectiveKind CaptureRegion = OMPD_unknown;
   if (!Condition->isValueDependent() && !Condition->isTypeDependent() &&
       !Condition->isInstantiationDependent() &&
       !Condition->containsUnexpandedParameterPack()) {
-    ExprResult Val = CheckBooleanCondition(StartLoc, Condition);
+    ExprResult Val = SemaRef.CheckBooleanCondition(StartLoc, Condition);
     if (Val.isInvalid())
       return nullptr;
 
-    ValExpr = MakeFullExpr(Val.get()).get();
+    ValExpr = SemaRef.MakeFullExpr(Val.get()).get();
 
     OpenMPDirectiveKind DKind = DSAStack->getCurrentDirective();
-    CaptureRegion =
-        getOpenMPCaptureRegionForClause(DKind, OMPC_nocontext, LangOpts.OpenMP);
-    if (CaptureRegion != OMPD_unknown && !CurContext->isDependentContext()) {
-      ValExpr = MakeFullExpr(ValExpr).get();
+    CaptureRegion = getOpenMPCaptureRegionForClause(DKind, OMPC_nocontext,
+                                                    getLangOpts().OpenMP);
+    if (CaptureRegion != OMPD_unknown &&
+        !SemaRef.CurContext->isDependentContext()) {
+      ValExpr = SemaRef.MakeFullExpr(ValExpr).get();
       llvm::MapVector<const Expr *, DeclRefExpr *> Captures;
-      ValExpr = tryBuildCapture(*this, ValExpr, Captures).get();
-      HelperValStmt = buildPreInits(Context, Captures);
+      ValExpr = tryBuildCapture(SemaRef, ValExpr, Captures).get();
+      HelperValStmt = buildPreInits(getASTContext(), Captures);
     }
   }
 
-  return new (Context) OMPNocontextClause(ValExpr, HelperValStmt, CaptureRegion,
-                                          StartLoc, LParenLoc, EndLoc);
+  return new (getASTContext()) OMPNocontextClause(
+      ValExpr, HelperValStmt, CaptureRegion, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPFilterClause(Expr *ThreadID,
-                                         SourceLocation StartLoc,
-                                         SourceLocation LParenLoc,
-                                         SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPFilterClause(Expr *ThreadID,
+                                               SourceLocation StartLoc,
+                                               SourceLocation LParenLoc,
+                                               SourceLocation EndLoc) {
   Expr *ValExpr = ThreadID;
   Stmt *HelperValStmt = nullptr;
 
   OpenMPDirectiveKind DKind = DSAStack->getCurrentDirective();
   OpenMPDirectiveKind CaptureRegion =
-      getOpenMPCaptureRegionForClause(DKind, OMPC_filter, LangOpts.OpenMP);
-  if (CaptureRegion != OMPD_unknown && !CurContext->isDependentContext()) {
-    ValExpr = MakeFullExpr(ValExpr).get();
+      getOpenMPCaptureRegionForClause(DKind, OMPC_filter, getLangOpts().OpenMP);
+  if (CaptureRegion != OMPD_unknown &&
+      !SemaRef.CurContext->isDependentContext()) {
+    ValExpr = SemaRef.MakeFullExpr(ValExpr).get();
     llvm::MapVector<const Expr *, DeclRefExpr *> Captures;
-    ValExpr = tryBuildCapture(*this, ValExpr, Captures).get();
-    HelperValStmt = buildPreInits(Context, Captures);
+    ValExpr = tryBuildCapture(SemaRef, ValExpr, Captures).get();
+    HelperValStmt = buildPreInits(getASTContext(), Captures);
   }
 
-  return new (Context) OMPFilterClause(ValExpr, HelperValStmt, CaptureRegion,
-                                       StartLoc, LParenLoc, EndLoc);
+  return new (getASTContext()) OMPFilterClause(
+      ValExpr, HelperValStmt, CaptureRegion, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPVarListClause(OpenMPClauseKind Kind,
-                                          ArrayRef<Expr *> VarList,
-                                          const OMPVarListLocTy &Locs,
-                                          OpenMPVarListDataTy &Data) {
+OMPClause *SemaOpenMP::ActOnOpenMPVarListClause(OpenMPClauseKind Kind,
+                                                ArrayRef<Expr *> VarList,
+                                                const OMPVarListLocTy &Locs,
+                                                OpenMPVarListDataTy &Data) {
   SourceLocation StartLoc = Locs.StartLoc;
   SourceLocation LParenLoc = Locs.LParenLoc;
   SourceLocation EndLoc = Locs.EndLoc;
@@ -18395,29 +18462,30 @@ OMPClause *Sema::ActOnOpenMPVarListClause(OpenMPClauseKind Kind,
   return Res;
 }
 
-ExprResult Sema::getOpenMPCapturedExpr(VarDecl *Capture, ExprValueKind VK,
-                                       ExprObjectKind OK, SourceLocation Loc) {
-  ExprResult Res = BuildDeclRefExpr(
+ExprResult SemaOpenMP::getOpenMPCapturedExpr(VarDecl *Capture, ExprValueKind VK,
+                                             ExprObjectKind OK,
+                                             SourceLocation Loc) {
+  ExprResult Res = SemaRef.BuildDeclRefExpr(
       Capture, Capture->getType().getNonReferenceType(), VK_LValue, Loc);
   if (!Res.isUsable())
     return ExprError();
   if (OK == OK_Ordinary && !getLangOpts().CPlusPlus) {
-    Res = CreateBuiltinUnaryOp(Loc, UO_Deref, Res.get());
+    Res = SemaRef.CreateBuiltinUnaryOp(Loc, UO_Deref, Res.get());
     if (!Res.isUsable())
       return ExprError();
   }
   if (VK != VK_LValue && Res.get()->isGLValue()) {
-    Res = DefaultLvalueConversion(Res.get());
+    Res = SemaRef.DefaultLvalueConversion(Res.get());
     if (!Res.isUsable())
       return ExprError();
   }
   return Res;
 }
 
-OMPClause *Sema::ActOnOpenMPPrivateClause(ArrayRef<Expr *> VarList,
-                                          SourceLocation StartLoc,
-                                          SourceLocation LParenLoc,
-                                          SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPPrivateClause(ArrayRef<Expr *> VarList,
+                                                SourceLocation StartLoc,
+                                                SourceLocation LParenLoc,
+                                                SourceLocation EndLoc) {
   SmallVector<Expr *, 8> Vars;
   SmallVector<Expr *, 8> PrivateCopies;
   bool IsImplicitClause =
@@ -18427,7 +18495,7 @@ OMPClause *Sema::ActOnOpenMPPrivateClause(ArrayRef<Expr *> VarList,
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange);
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange);
     if (Res.second) {
       // It will be analyzed later.
       Vars.push_back(RefExpr);
@@ -18443,7 +18511,8 @@ OMPClause *Sema::ActOnOpenMPPrivateClause(ArrayRef<Expr *> VarList,
     // OpenMP [2.9.3.3, Restrictions, C/C++, p.3]
     //  A variable that appears in a private clause must not have an incomplete
     //  type or a reference type.
-    if (RequireCompleteType(ELoc, Type, diag::err_omp_private_incomplete_type))
+    if (SemaRef.RequireCompleteType(ELoc, Type,
+                                    diag::err_omp_private_incomplete_type))
       continue;
     Type = Type.getNonReferenceType();
 
@@ -18455,7 +18524,7 @@ OMPClause *Sema::ActOnOpenMPPrivateClause(ArrayRef<Expr *> VarList,
     // OpenMP 3.1 [2.9.3.3, private clause, Restrictions]
     // A variable that appears in a private clause must not have a
     // const-qualified type unless it is of class type with a mutable member.
-    if (rejectConstNotMutableType(*this, D, Type, OMPC_private, ELoc))
+    if (rejectConstNotMutableType(SemaRef, D, Type, OMPC_private, ELoc))
       continue;
 
     // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced
@@ -18469,7 +18538,7 @@ OMPClause *Sema::ActOnOpenMPPrivateClause(ArrayRef<Expr *> VarList,
     if (DVar.CKind != OMPC_unknown && DVar.CKind != OMPC_private) {
       Diag(ELoc, diag::err_omp_wrong_dsa) << getOpenMPClauseName(DVar.CKind)
                                           << getOpenMPClauseName(OMPC_private);
-      reportOriginalDsa(*this, DSAStack, D, DVar);
+      reportOriginalDsa(SemaRef, DSAStack, D, DVar);
       continue;
     }
 
@@ -18480,7 +18549,7 @@ OMPClause *Sema::ActOnOpenMPPrivateClause(ArrayRef<Expr *> VarList,
       Diag(ELoc, diag::err_omp_variably_modified_type_not_supported)
           << getOpenMPClauseName(OMPC_private) << Type
           << getOpenMPDirectiveName(CurrDir);
-      bool IsDecl = !VD || VD->isThisDeclarationADefinition(Context) ==
+      bool IsDecl = !VD || VD->isThisDeclarationADefinition(getASTContext()) ==
                                VarDecl::DeclarationOnly;
       Diag(D->getLocation(),
            IsDecl ? diag::note_previous_decl : diag::note_defined_here)
@@ -18496,7 +18565,8 @@ OMPClause *Sema::ActOnOpenMPPrivateClause(ArrayRef<Expr *> VarList,
     // A list item cannot appear in both a map clause and a data-sharing
     // attribute clause on the same construct unless the construct is a
     // combined construct.
-    if ((LangOpts.OpenMP <= 45 && isOpenMPTargetExecutionDirective(CurrDir)) ||
+    if ((getLangOpts().OpenMP <= 45 &&
+         isOpenMPTargetExecutionDirective(CurrDir)) ||
         CurrDir == OMPD_target) {
       OpenMPClauseKind ConflictKind;
       if (DSAStack->checkMappableExprComponentListsForDecl(
@@ -18510,7 +18580,7 @@ OMPClause *Sema::ActOnOpenMPPrivateClause(ArrayRef<Expr *> VarList,
             << getOpenMPClauseName(OMPC_private)
             << getOpenMPClauseName(ConflictKind)
             << getOpenMPDirectiveName(CurrDir);
-        reportOriginalDsa(*this, DSAStack, D, DVar);
+        reportOriginalDsa(SemaRef, DSAStack, D, DVar);
         continue;
       }
     }
@@ -18526,28 +18596,28 @@ OMPClause *Sema::ActOnOpenMPPrivateClause(ArrayRef<Expr *> VarList,
     // proper diagnostics.
     Type = Type.getUnqualifiedType();
     VarDecl *VDPrivate =
-        buildVarDecl(*this, ELoc, Type, D->getName(),
+        buildVarDecl(SemaRef, ELoc, Type, D->getName(),
                      D->hasAttrs() ? &D->getAttrs() : nullptr,
                      VD ? cast<DeclRefExpr>(SimpleRefExpr) : nullptr);
-    ActOnUninitializedDecl(VDPrivate);
+    SemaRef.ActOnUninitializedDecl(VDPrivate);
     if (VDPrivate->isInvalidDecl())
       continue;
     DeclRefExpr *VDPrivateRefExpr = buildDeclRefExpr(
-        *this, VDPrivate, RefExpr->getType().getUnqualifiedType(), ELoc);
+        SemaRef, VDPrivate, RefExpr->getType().getUnqualifiedType(), ELoc);
 
     DeclRefExpr *Ref = nullptr;
-    if (!VD && !CurContext->isDependentContext()) {
+    if (!VD && !SemaRef.CurContext->isDependentContext()) {
       auto *FD = dyn_cast<FieldDecl>(D);
       VarDecl *VD = FD ? DSAStack->getImplicitFDCapExprDecl(FD) : nullptr;
       if (VD)
-        Ref = buildDeclRefExpr(*this, VD, VD->getType().getNonReferenceType(),
+        Ref = buildDeclRefExpr(SemaRef, VD, VD->getType().getNonReferenceType(),
                                RefExpr->getExprLoc());
       else
-        Ref = buildCapture(*this, D, SimpleRefExpr, /*WithInit=*/false);
+        Ref = buildCapture(SemaRef, D, SimpleRefExpr, /*WithInit=*/false);
     }
     if (!IsImplicitClause)
       DSAStack->addDSA(D, RefExpr->IgnoreParens(), OMPC_private, Ref);
-    Vars.push_back((VD || CurContext->isDependentContext())
+    Vars.push_back((VD || SemaRef.CurContext->isDependentContext())
                        ? RefExpr->IgnoreParens()
                        : Ref);
     PrivateCopies.push_back(VDPrivateRefExpr);
@@ -18556,14 +18626,14 @@ OMPClause *Sema::ActOnOpenMPPrivateClause(ArrayRef<Expr *> VarList,
   if (Vars.empty())
     return nullptr;
 
-  return OMPPrivateClause::Create(Context, StartLoc, LParenLoc, EndLoc, Vars,
-                                  PrivateCopies);
+  return OMPPrivateClause::Create(getASTContext(), StartLoc, LParenLoc, EndLoc,
+                                  Vars, PrivateCopies);
 }
 
-OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
-                                               SourceLocation StartLoc,
-                                               SourceLocation LParenLoc,
-                                               SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
+                                                     SourceLocation StartLoc,
+                                                     SourceLocation LParenLoc,
+                                                     SourceLocation EndLoc) {
   SmallVector<Expr *, 8> Vars;
   SmallVector<Expr *, 8> PrivateCopies;
   SmallVector<Expr *, 8> Inits;
@@ -18577,7 +18647,7 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange);
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange);
     if (Res.second) {
       // It will be analyzed later.
       Vars.push_back(RefExpr);
@@ -18595,8 +18665,8 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
     // OpenMP [2.9.3.3, Restrictions, C/C++, p.3]
     //  A variable that appears in a private clause must not have an incomplete
     //  type or a reference type.
-    if (RequireCompleteType(ELoc, Type,
-                            diag::err_omp_firstprivate_incomplete_type))
+    if (SemaRef.RequireCompleteType(ELoc, Type,
+                                    diag::err_omp_firstprivate_incomplete_type))
       continue;
     Type = Type.getNonReferenceType();
 
@@ -18604,7 +18674,8 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
     //  A variable of class type (or array thereof) that appears in a private
     //  clause requires an accessible, unambiguous copy constructor for the
     //  class type.
-    QualType ElemType = Context.getBaseElementType(Type).getNonReferenceType();
+    QualType ElemType =
+        getASTContext().getBaseElementType(Type).getNonReferenceType();
 
     // If an implicit firstprivate variable found it was checked already.
     DSAStackTy::DSAVarData TopDVar;
@@ -18613,7 +18684,7 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
           DSAStack->getTopDSA(D, /*FromParent=*/false);
       TopDVar = DVar;
       OpenMPDirectiveKind CurrDir = DSAStack->getCurrentDirective();
-      bool IsConstant = ElemType.isConstant(Context);
+      bool IsConstant = ElemType.isConstant(getASTContext());
       // OpenMP [2.4.13, Data-sharing Attribute Clauses]
       //  A list item that specifies a given variable may not appear in more
       // than one clause on the same directive, except that a variable may be
@@ -18628,7 +18699,7 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
         Diag(ELoc, diag::err_omp_wrong_dsa)
             << getOpenMPClauseName(DVar.CKind)
             << getOpenMPClauseName(OMPC_firstprivate);
-        reportOriginalDsa(*this, DSAStack, D, DVar);
+        reportOriginalDsa(SemaRef, DSAStack, D, DVar);
         continue;
       }
 
@@ -18648,7 +18719,7 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
         Diag(ELoc, diag::err_omp_wrong_dsa)
             << getOpenMPClauseName(DVar.CKind)
             << getOpenMPClauseName(OMPC_firstprivate);
-        reportOriginalDsa(*this, DSAStack, D, DVar);
+        reportOriginalDsa(SemaRef, DSAStack, D, DVar);
         continue;
       }
 
@@ -18679,7 +18750,7 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
           Diag(ELoc, diag::err_omp_required_access)
               << getOpenMPClauseName(OMPC_firstprivate)
               << getOpenMPClauseName(OMPC_shared);
-          reportOriginalDsa(*this, DSAStack, D, DVar);
+          reportOriginalDsa(SemaRef, DSAStack, D, DVar);
           continue;
         }
       }
@@ -18712,7 +18783,7 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
              isOpenMPTeamsDirective(DVar.DKind))) {
           Diag(ELoc, diag::err_omp_parallel_reduction_in_task_firstprivate)
               << getOpenMPDirectiveName(DVar.DKind);
-          reportOriginalDsa(*this, DSAStack, D, DVar);
+          reportOriginalDsa(SemaRef, DSAStack, D, DVar);
           continue;
         }
       }
@@ -18725,7 +18796,7 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
       // A list item cannot appear in both a map clause and a data-sharing
       // attribute clause on the same construct unless the construct is a
       // combined construct.
-      if ((LangOpts.OpenMP <= 45 &&
+      if ((getLangOpts().OpenMP <= 45 &&
            isOpenMPTargetExecutionDirective(CurrDir)) ||
           CurrDir == OMPD_target) {
         OpenMPClauseKind ConflictKind;
@@ -18741,7 +18812,7 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
               << getOpenMPClauseName(OMPC_firstprivate)
               << getOpenMPClauseName(ConflictKind)
               << getOpenMPDirectiveName(DSAStack->getCurrentDirective());
-          reportOriginalDsa(*this, DSAStack, D, DVar);
+          reportOriginalDsa(SemaRef, DSAStack, D, DVar);
           continue;
         }
       }
@@ -18753,7 +18824,7 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
       Diag(ELoc, diag::err_omp_variably_modified_type_not_supported)
           << getOpenMPClauseName(OMPC_firstprivate) << Type
           << getOpenMPDirectiveName(DSAStack->getCurrentDirective());
-      bool IsDecl = !VD || VD->isThisDeclarationADefinition(Context) ==
+      bool IsDecl = !VD || VD->isThisDeclarationADefinition(getASTContext()) ==
                                VarDecl::DeclarationOnly;
       Diag(D->getLocation(),
            IsDecl ? diag::note_previous_decl : diag::note_defined_here)
@@ -18763,7 +18834,7 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
 
     Type = Type.getUnqualifiedType();
     VarDecl *VDPrivate =
-        buildVarDecl(*this, ELoc, Type, D->getName(),
+        buildVarDecl(SemaRef, ELoc, Type, D->getName(),
                      D->hasAttrs() ? &D->getAttrs() : nullptr,
                      VD ? cast<DeclRefExpr>(SimpleRefExpr) : nullptr);
     // Generate helper private variable and initialize it with the value of the
@@ -18776,32 +18847,32 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
     // original array element in CodeGen.
     if (Type->isArrayType()) {
       VarDecl *VDInit =
-          buildVarDecl(*this, RefExpr->getExprLoc(), ElemType, D->getName());
-      VDInitRefExpr = buildDeclRefExpr(*this, VDInit, ElemType, ELoc);
-      Expr *Init = DefaultLvalueConversion(VDInitRefExpr).get();
+          buildVarDecl(SemaRef, RefExpr->getExprLoc(), ElemType, D->getName());
+      VDInitRefExpr = buildDeclRefExpr(SemaRef, VDInit, ElemType, ELoc);
+      Expr *Init = SemaRef.DefaultLvalueConversion(VDInitRefExpr).get();
       ElemType = ElemType.getUnqualifiedType();
-      VarDecl *VDInitTemp = buildVarDecl(*this, RefExpr->getExprLoc(), ElemType,
-                                         ".firstprivate.temp");
+      VarDecl *VDInitTemp = buildVarDecl(SemaRef, RefExpr->getExprLoc(),
+                                         ElemType, ".firstprivate.temp");
       InitializedEntity Entity =
           InitializedEntity::InitializeVariable(VDInitTemp);
       InitializationKind Kind = InitializationKind::CreateCopy(ELoc, ELoc);
 
-      InitializationSequence InitSeq(*this, Entity, Kind, Init);
-      ExprResult Result = InitSeq.Perform(*this, Entity, Kind, Init);
+      InitializationSequence InitSeq(SemaRef, Entity, Kind, Init);
+      ExprResult Result = InitSeq.Perform(SemaRef, Entity, Kind, Init);
       if (Result.isInvalid())
         VDPrivate->setInvalidDecl();
       else
         VDPrivate->setInit(Result.getAs<Expr>());
       // Remove temp variable declaration.
-      Context.Deallocate(VDInitTemp);
+      getASTContext().Deallocate(VDInitTemp);
     } else {
-      VarDecl *VDInit = buildVarDecl(*this, RefExpr->getExprLoc(), Type,
+      VarDecl *VDInit = buildVarDecl(SemaRef, RefExpr->getExprLoc(), Type,
                                      ".firstprivate.temp");
-      VDInitRefExpr = buildDeclRefExpr(*this, VDInit, RefExpr->getType(),
+      VDInitRefExpr = buildDeclRefExpr(SemaRef, VDInit, RefExpr->getType(),
                                        RefExpr->getExprLoc());
-      AddInitializerToDecl(VDPrivate,
-                           DefaultLvalueConversion(VDInitRefExpr).get(),
-                           /*DirectInit=*/false);
+      SemaRef.AddInitializerToDecl(
+          VDPrivate, SemaRef.DefaultLvalueConversion(VDInitRefExpr).get(),
+          /*DirectInit=*/false);
     }
     if (VDPrivate->isInvalidDecl()) {
       if (IsImplicitClause) {
@@ -18810,29 +18881,30 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
       }
       continue;
     }
-    CurContext->addDecl(VDPrivate);
+    SemaRef.CurContext->addDecl(VDPrivate);
     DeclRefExpr *VDPrivateRefExpr = buildDeclRefExpr(
-        *this, VDPrivate, RefExpr->getType().getUnqualifiedType(),
+        SemaRef, VDPrivate, RefExpr->getType().getUnqualifiedType(),
         RefExpr->getExprLoc());
     DeclRefExpr *Ref = nullptr;
-    if (!VD && !CurContext->isDependentContext()) {
+    if (!VD && !SemaRef.CurContext->isDependentContext()) {
       if (TopDVar.CKind == OMPC_lastprivate) {
         Ref = TopDVar.PrivateCopy;
       } else {
         auto *FD = dyn_cast<FieldDecl>(D);
         VarDecl *VD = FD ? DSAStack->getImplicitFDCapExprDecl(FD) : nullptr;
         if (VD)
-          Ref = buildDeclRefExpr(*this, VD, VD->getType().getNonReferenceType(),
-                                 RefExpr->getExprLoc());
+          Ref =
+              buildDeclRefExpr(SemaRef, VD, VD->getType().getNonReferenceType(),
+                               RefExpr->getExprLoc());
         else
-          Ref = buildCapture(*this, D, SimpleRefExpr, /*WithInit=*/true);
+          Ref = buildCapture(SemaRef, D, SimpleRefExpr, /*WithInit=*/true);
         if (VD || !isOpenMPCapturedDecl(D))
           ExprCaptures.push_back(Ref->getDecl());
       }
     }
     if (!IsImplicitClause)
       DSAStack->addDSA(D, RefExpr->IgnoreParens(), OMPC_firstprivate, Ref);
-    Vars.push_back((VD || CurContext->isDependentContext())
+    Vars.push_back((VD || SemaRef.CurContext->isDependentContext())
                        ? RefExpr->IgnoreParens()
                        : Ref);
     PrivateCopies.push_back(VDPrivateRefExpr);
@@ -18842,12 +18914,12 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
   if (Vars.empty())
     return nullptr;
 
-  return OMPFirstprivateClause::Create(Context, StartLoc, LParenLoc, EndLoc,
-                                       Vars, PrivateCopies, Inits,
-                                       buildPreInits(Context, ExprCaptures));
+  return OMPFirstprivateClause::Create(
+      getASTContext(), StartLoc, LParenLoc, EndLoc, Vars, PrivateCopies, Inits,
+      buildPreInits(getASTContext(), ExprCaptures));
 }
 
-OMPClause *Sema::ActOnOpenMPLastprivateClause(
+OMPClause *SemaOpenMP::ActOnOpenMPLastprivateClause(
     ArrayRef<Expr *> VarList, OpenMPLastprivateModifier LPKind,
     SourceLocation LPKindLoc, SourceLocation ColonLoc, SourceLocation StartLoc,
     SourceLocation LParenLoc, SourceLocation EndLoc) {
@@ -18871,7 +18943,7 @@ OMPClause *Sema::ActOnOpenMPLastprivateClause(
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange);
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange);
     if (Res.second) {
       // It will be analyzed later.
       Vars.push_back(RefExpr);
@@ -18889,8 +18961,8 @@ OMPClause *Sema::ActOnOpenMPLastprivateClause(
     // OpenMP [2.14.3.5, Restrictions, C/C++, p.2]
     //  A variable that appears in a lastprivate clause must not have an
     //  incomplete type or a reference type.
-    if (RequireCompleteType(ELoc, Type,
-                            diag::err_omp_lastprivate_incomplete_type))
+    if (SemaRef.RequireCompleteType(ELoc, Type,
+                                    diag::err_omp_lastprivate_incomplete_type))
       continue;
     Type = Type.getNonReferenceType();
 
@@ -18902,7 +18974,7 @@ OMPClause *Sema::ActOnOpenMPLastprivateClause(
     // OpenMP 3.1 [2.9.3.5, lastprivate clause, Restrictions]
     // A variable that appears in a lastprivate clause must not have a
     // const-qualified type unless it is of class type with a mutable member.
-    if (rejectConstNotMutableType(*this, D, Type, OMPC_lastprivate, ELoc))
+    if (rejectConstNotMutableType(SemaRef, D, Type, OMPC_lastprivate, ELoc))
       continue;
 
     // OpenMP 5.0 [2.19.4.5 lastprivate Clause, Restrictions]
@@ -18910,7 +18982,7 @@ OMPClause *Sema::ActOnOpenMPLastprivateClause(
     // modifier must be a scalar variable.
     if (LPKind == OMPC_LASTPRIVATE_conditional && !Type->isScalarType()) {
       Diag(ELoc, diag::err_omp_lastprivate_conditional_non_scalar);
-      bool IsDecl = !VD || VD->isThisDeclarationADefinition(Context) ==
+      bool IsDecl = !VD || VD->isThisDeclarationADefinition(getASTContext()) ==
                                VarDecl::DeclarationOnly;
       Diag(D->getLocation(),
            IsDecl ? diag::note_previous_decl : diag::note_defined_here)
@@ -18935,7 +19007,7 @@ OMPClause *Sema::ActOnOpenMPLastprivateClause(
       Diag(ELoc, diag::err_omp_wrong_dsa)
           << getOpenMPClauseName(DVar.CKind)
           << getOpenMPClauseName(OMPC_lastprivate);
-      reportOriginalDsa(*this, DSAStack, D, DVar);
+      reportOriginalDsa(SemaRef, DSAStack, D, DVar);
       continue;
     }
 
@@ -18954,7 +19026,7 @@ OMPClause *Sema::ActOnOpenMPLastprivateClause(
         Diag(ELoc, diag::err_omp_required_access)
             << getOpenMPClauseName(OMPC_lastprivate)
             << getOpenMPClauseName(OMPC_shared);
-        reportOriginalDsa(*this, DSAStack, D, DVar);
+        reportOriginalDsa(SemaRef, DSAStack, D, DVar);
         continue;
       }
     }
@@ -18967,53 +19039,53 @@ OMPClause *Sema::ActOnOpenMPLastprivateClause(
     //  A variable of class type (or array thereof) that appears in a
     //  lastprivate clause requires an accessible, unambiguous copy assignment
     //  operator for the class type.
-    Type = Context.getBaseElementType(Type).getNonReferenceType();
-    VarDecl *SrcVD = buildVarDecl(*this, ERange.getBegin(),
+    Type = getASTContext().getBaseElementType(Type).getNonReferenceType();
+    VarDecl *SrcVD = buildVarDecl(SemaRef, ERange.getBegin(),
                                   Type.getUnqualifiedType(), ".lastprivate.src",
                                   D->hasAttrs() ? &D->getAttrs() : nullptr);
     DeclRefExpr *PseudoSrcExpr =
-        buildDeclRefExpr(*this, SrcVD, Type.getUnqualifiedType(), ELoc);
+        buildDeclRefExpr(SemaRef, SrcVD, Type.getUnqualifiedType(), ELoc);
     VarDecl *DstVD =
-        buildVarDecl(*this, ERange.getBegin(), Type, ".lastprivate.dst",
+        buildVarDecl(SemaRef, ERange.getBegin(), Type, ".lastprivate.dst",
                      D->hasAttrs() ? &D->getAttrs() : nullptr);
-    DeclRefExpr *PseudoDstExpr = buildDeclRefExpr(*this, DstVD, Type, ELoc);
+    DeclRefExpr *PseudoDstExpr = buildDeclRefExpr(SemaRef, DstVD, Type, ELoc);
     // For arrays generate assignment operation for single element and replace
     // it by the original array element in CodeGen.
-    ExprResult AssignmentOp = BuildBinOp(/*S=*/nullptr, ELoc, BO_Assign,
-                                         PseudoDstExpr, PseudoSrcExpr);
+    ExprResult AssignmentOp = SemaRef.BuildBinOp(/*S=*/nullptr, ELoc, BO_Assign,
+                                                 PseudoDstExpr, PseudoSrcExpr);
     if (AssignmentOp.isInvalid())
       continue;
-    AssignmentOp =
-        ActOnFinishFullExpr(AssignmentOp.get(), ELoc, /*DiscardedValue*/ false);
+    AssignmentOp = SemaRef.ActOnFinishFullExpr(AssignmentOp.get(), ELoc,
+                                               /*DiscardedValue*/ false);
     if (AssignmentOp.isInvalid())
       continue;
 
     DeclRefExpr *Ref = nullptr;
-    if (!VD && !CurContext->isDependentContext()) {
+    if (!VD && !SemaRef.CurContext->isDependentContext()) {
       if (TopDVar.CKind == OMPC_firstprivate) {
         Ref = TopDVar.PrivateCopy;
       } else {
-        Ref = buildCapture(*this, D, SimpleRefExpr, /*WithInit=*/false);
+        Ref = buildCapture(SemaRef, D, SimpleRefExpr, /*WithInit=*/false);
         if (!isOpenMPCapturedDecl(D))
           ExprCaptures.push_back(Ref->getDecl());
       }
       if ((TopDVar.CKind == OMPC_firstprivate && !TopDVar.PrivateCopy) ||
           (!isOpenMPCapturedDecl(D) &&
            Ref->getDecl()->hasAttr<OMPCaptureNoInitAttr>())) {
-        ExprResult RefRes = DefaultLvalueConversion(Ref);
+        ExprResult RefRes = SemaRef.DefaultLvalueConversion(Ref);
         if (!RefRes.isUsable())
           continue;
         ExprResult PostUpdateRes =
-            BuildBinOp(DSAStack->getCurScope(), ELoc, BO_Assign, SimpleRefExpr,
-                       RefRes.get());
+            SemaRef.BuildBinOp(DSAStack->getCurScope(), ELoc, BO_Assign,
+                               SimpleRefExpr, RefRes.get());
         if (!PostUpdateRes.isUsable())
           continue;
         ExprPostUpdates.push_back(
-            IgnoredValueConversions(PostUpdateRes.get()).get());
+            SemaRef.IgnoredValueConversions(PostUpdateRes.get()).get());
       }
     }
     DSAStack->addDSA(D, RefExpr->IgnoreParens(), OMPC_lastprivate, Ref);
-    Vars.push_back((VD || CurContext->isDependentContext())
+    Vars.push_back((VD || SemaRef.CurContext->isDependentContext())
                        ? RefExpr->IgnoreParens()
                        : Ref);
     SrcExprs.push_back(PseudoSrcExpr);
@@ -19024,24 +19096,24 @@ OMPClause *Sema::ActOnOpenMPLastprivateClause(
   if (Vars.empty())
     return nullptr;
 
-  return OMPLastprivateClause::Create(Context, StartLoc, LParenLoc, EndLoc,
-                                      Vars, SrcExprs, DstExprs, AssignmentOps,
-                                      LPKind, LPKindLoc, ColonLoc,
-                                      buildPreInits(Context, ExprCaptures),
-                                      buildPostUpdate(*this, ExprPostUpdates));
+  return OMPLastprivateClause::Create(
+      getASTContext(), StartLoc, LParenLoc, EndLoc, Vars, SrcExprs, DstExprs,
+      AssignmentOps, LPKind, LPKindLoc, ColonLoc,
+      buildPreInits(getASTContext(), ExprCaptures),
+      buildPostUpdate(SemaRef, ExprPostUpdates));
 }
 
-OMPClause *Sema::ActOnOpenMPSharedClause(ArrayRef<Expr *> VarList,
-                                         SourceLocation StartLoc,
-                                         SourceLocation LParenLoc,
-                                         SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPSharedClause(ArrayRef<Expr *> VarList,
+                                               SourceLocation StartLoc,
+                                               SourceLocation LParenLoc,
+                                               SourceLocation EndLoc) {
   SmallVector<Expr *, 8> Vars;
   for (Expr *RefExpr : VarList) {
     assert(RefExpr && "NULL expr in OpenMP lastprivate clause.");
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange);
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange);
     if (Res.second) {
       // It will be analyzed later.
       Vars.push_back(RefExpr);
@@ -19063,15 +19135,16 @@ OMPClause *Sema::ActOnOpenMPSharedClause(ArrayRef<Expr *> VarList,
         DVar.RefExpr) {
       Diag(ELoc, diag::err_omp_wrong_dsa) << getOpenMPClauseName(DVar.CKind)
                                           << getOpenMPClauseName(OMPC_shared);
-      reportOriginalDsa(*this, DSAStack, D, DVar);
+      reportOriginalDsa(SemaRef, DSAStack, D, DVar);
       continue;
     }
 
     DeclRefExpr *Ref = nullptr;
-    if (!VD && isOpenMPCapturedDecl(D) && !CurContext->isDependentContext())
-      Ref = buildCapture(*this, D, SimpleRefExpr, /*WithInit=*/true);
+    if (!VD && isOpenMPCapturedDecl(D) &&
+        !SemaRef.CurContext->isDependentContext())
+      Ref = buildCapture(SemaRef, D, SimpleRefExpr, /*WithInit=*/true);
     DSAStack->addDSA(D, RefExpr->IgnoreParens(), OMPC_shared, Ref);
-    Vars.push_back((VD || !Ref || CurContext->isDependentContext())
+    Vars.push_back((VD || !Ref || SemaRef.CurContext->isDependentContext())
                        ? RefExpr->IgnoreParens()
                        : Ref);
   }
@@ -19079,7 +19152,8 @@ OMPClause *Sema::ActOnOpenMPSharedClause(ArrayRef<Expr *> VarList,
   if (Vars.empty())
     return nullptr;
 
-  return OMPSharedClause::Create(Context, StartLoc, LParenLoc, EndLoc, Vars);
+  return OMPSharedClause::Create(getASTContext(), StartLoc, LParenLoc, EndLoc,
+                                 Vars);
 }
 
 namespace {
@@ -20200,7 +20274,7 @@ static bool actOnOMPReductionKindClause(
       } else {
         VarsExpr = Ref = buildCapture(S, D, SimpleRefExpr, /*WithInit=*/false);
       }
-      if (!S.isOpenMPCapturedDecl(D)) {
+      if (!S.OpenMP().isOpenMPCapturedDecl(D)) {
         RD.ExprCaptures.emplace_back(Ref->getDecl());
         if (Ref->getDecl()->hasAttr<OMPCaptureNoInitAttr>()) {
           ExprResult RefRes = S.DefaultLvalueConversion(Ref);
@@ -20250,7 +20324,7 @@ static bool actOnOMPReductionKindClause(
   return RD.Vars.empty();
 }
 
-OMPClause *Sema::ActOnOpenMPReductionClause(
+OMPClause *SemaOpenMP::ActOnOpenMPReductionClause(
     ArrayRef<Expr *> VarList, OpenMPReductionClauseModifier Modifier,
     SourceLocation StartLoc, SourceLocation LParenLoc,
     SourceLocation ModifierLoc, SourceLocation ColonLoc, SourceLocation EndLoc,
@@ -20279,77 +20353,80 @@ OMPClause *Sema::ActOnOpenMPReductionClause(
   }
 
   ReductionData RD(VarList.size(), Modifier);
-  if (actOnOMPReductionKindClause(*this, DSAStack, OMPC_reduction, VarList,
+  if (actOnOMPReductionKindClause(SemaRef, DSAStack, OMPC_reduction, VarList,
                                   StartLoc, LParenLoc, ColonLoc, EndLoc,
                                   ReductionIdScopeSpec, ReductionId,
                                   UnresolvedReductions, RD))
     return nullptr;
 
   return OMPReductionClause::Create(
-      Context, StartLoc, LParenLoc, ModifierLoc, ColonLoc, EndLoc, Modifier,
-      RD.Vars, ReductionIdScopeSpec.getWithLocInContext(Context), ReductionId,
+      getASTContext(), StartLoc, LParenLoc, ModifierLoc, ColonLoc, EndLoc,
+      Modifier, RD.Vars,
+      ReductionIdScopeSpec.getWithLocInContext(getASTContext()), ReductionId,
       RD.Privates, RD.LHSs, RD.RHSs, RD.ReductionOps, RD.InscanCopyOps,
       RD.InscanCopyArrayTemps, RD.InscanCopyArrayElems,
-      buildPreInits(Context, RD.ExprCaptures),
-      buildPostUpdate(*this, RD.ExprPostUpdates));
+      buildPreInits(getASTContext(), RD.ExprCaptures),
+      buildPostUpdate(SemaRef, RD.ExprPostUpdates));
 }
 
-OMPClause *Sema::ActOnOpenMPTaskReductionClause(
+OMPClause *SemaOpenMP::ActOnOpenMPTaskReductionClause(
     ArrayRef<Expr *> VarList, SourceLocation StartLoc, SourceLocation LParenLoc,
     SourceLocation ColonLoc, SourceLocation EndLoc,
     CXXScopeSpec &ReductionIdScopeSpec, const DeclarationNameInfo &ReductionId,
     ArrayRef<Expr *> UnresolvedReductions) {
   ReductionData RD(VarList.size());
-  if (actOnOMPReductionKindClause(*this, DSAStack, OMPC_task_reduction, VarList,
-                                  StartLoc, LParenLoc, ColonLoc, EndLoc,
-                                  ReductionIdScopeSpec, ReductionId,
+  if (actOnOMPReductionKindClause(SemaRef, DSAStack, OMPC_task_reduction,
+                                  VarList, StartLoc, LParenLoc, ColonLoc,
+                                  EndLoc, ReductionIdScopeSpec, ReductionId,
                                   UnresolvedReductions, RD))
     return nullptr;
 
   return OMPTaskReductionClause::Create(
-      Context, StartLoc, LParenLoc, ColonLoc, EndLoc, RD.Vars,
-      ReductionIdScopeSpec.getWithLocInContext(Context), ReductionId,
+      getASTContext(), StartLoc, LParenLoc, ColonLoc, EndLoc, RD.Vars,
+      ReductionIdScopeSpec.getWithLocInContext(getASTContext()), ReductionId,
       RD.Privates, RD.LHSs, RD.RHSs, RD.ReductionOps,
-      buildPreInits(Context, RD.ExprCaptures),
-      buildPostUpdate(*this, RD.ExprPostUpdates));
+      buildPreInits(getASTContext(), RD.ExprCaptures),
+      buildPostUpdate(SemaRef, RD.ExprPostUpdates));
 }
 
-OMPClause *Sema::ActOnOpenMPInReductionClause(
+OMPClause *SemaOpenMP::ActOnOpenMPInReductionClause(
     ArrayRef<Expr *> VarList, SourceLocation StartLoc, SourceLocation LParenLoc,
     SourceLocation ColonLoc, SourceLocation EndLoc,
     CXXScopeSpec &ReductionIdScopeSpec, const DeclarationNameInfo &ReductionId,
     ArrayRef<Expr *> UnresolvedReductions) {
   ReductionData RD(VarList.size());
-  if (actOnOMPReductionKindClause(*this, DSAStack, OMPC_in_reduction, VarList,
+  if (actOnOMPReductionKindClause(SemaRef, DSAStack, OMPC_in_reduction, VarList,
                                   StartLoc, LParenLoc, ColonLoc, EndLoc,
                                   ReductionIdScopeSpec, ReductionId,
                                   UnresolvedReductions, RD))
     return nullptr;
 
   return OMPInReductionClause::Create(
-      Context, StartLoc, LParenLoc, ColonLoc, EndLoc, RD.Vars,
-      ReductionIdScopeSpec.getWithLocInContext(Context), ReductionId,
+      getASTContext(), StartLoc, LParenLoc, ColonLoc, EndLoc, RD.Vars,
+      ReductionIdScopeSpec.getWithLocInContext(getASTContext()), ReductionId,
       RD.Privates, RD.LHSs, RD.RHSs, RD.ReductionOps, RD.TaskgroupDescriptors,
-      buildPreInits(Context, RD.ExprCaptures),
-      buildPostUpdate(*this, RD.ExprPostUpdates));
+      buildPreInits(getASTContext(), RD.ExprCaptures),
+      buildPostUpdate(SemaRef, RD.ExprPostUpdates));
 }
 
-bool Sema::CheckOpenMPLinearModifier(OpenMPLinearClauseKind LinKind,
-                                     SourceLocation LinLoc) {
-  if ((!LangOpts.CPlusPlus && LinKind != OMPC_LINEAR_val) ||
+bool SemaOpenMP::CheckOpenMPLinearModifier(OpenMPLinearClauseKind LinKind,
+                                           SourceLocation LinLoc) {
+  if ((!getLangOpts().CPlusPlus && LinKind != OMPC_LINEAR_val) ||
       LinKind == OMPC_LINEAR_unknown || LinKind == OMPC_LINEAR_step) {
-    Diag(LinLoc, diag::err_omp_wrong_linear_modifier) << LangOpts.CPlusPlus;
+    Diag(LinLoc, diag::err_omp_wrong_linear_modifier)
+        << getLangOpts().CPlusPlus;
     return true;
   }
   return false;
 }
 
-bool Sema::CheckOpenMPLinearDecl(const ValueDecl *D, SourceLocation ELoc,
-                                 OpenMPLinearClauseKind LinKind, QualType Type,
-                                 bool IsDeclareSimd) {
+bool SemaOpenMP::CheckOpenMPLinearDecl(const ValueDecl *D, SourceLocation ELoc,
+                                       OpenMPLinearClauseKind LinKind,
+                                       QualType Type, bool IsDeclareSimd) {
   const auto *VD = dyn_cast_or_null<VarDecl>(D);
   // A variable must not have an incomplete type or a reference type.
-  if (RequireCompleteType(ELoc, Type, diag::err_omp_linear_incomplete_type))
+  if (SemaRef.RequireCompleteType(ELoc, Type,
+                                  diag::err_omp_linear_incomplete_type))
     return true;
   if ((LinKind == OMPC_LINEAR_uval || LinKind == OMPC_LINEAR_ref) &&
       !Type->isReferenceType()) {
@@ -20365,17 +20442,17 @@ bool Sema::CheckOpenMPLinearDecl(const ValueDecl *D, SourceLocation ELoc,
   // not apply to the firstprivate clause, nor to the linear clause on
   // declarative directives (like declare simd).
   if (!IsDeclareSimd &&
-      rejectConstNotMutableType(*this, D, Type, OMPC_linear, ELoc))
+      rejectConstNotMutableType(SemaRef, D, Type, OMPC_linear, ELoc))
     return true;
 
   // A list item must be of integral or pointer type.
   Type = Type.getUnqualifiedType().getCanonicalType();
   const auto *Ty = Type.getTypePtrOrNull();
   if (!Ty || (LinKind != OMPC_LINEAR_ref && !Ty->isDependentType() &&
-              !Ty->isIntegralType(Context) && !Ty->isPointerType())) {
+              !Ty->isIntegralType(getASTContext()) && !Ty->isPointerType())) {
     Diag(ELoc, diag::err_omp_linear_expected_int_or_ptr) << Type;
     if (D) {
-      bool IsDecl = !VD || VD->isThisDeclarationADefinition(Context) ==
+      bool IsDecl = !VD || VD->isThisDeclarationADefinition(getASTContext()) ==
                                VarDecl::DeclarationOnly;
       Diag(D->getLocation(),
            IsDecl ? diag::note_previous_decl : diag::note_defined_here)
@@ -20386,7 +20463,7 @@ bool Sema::CheckOpenMPLinearDecl(const ValueDecl *D, SourceLocation ELoc,
   return false;
 }
 
-OMPClause *Sema::ActOnOpenMPLinearClause(
+OMPClause *SemaOpenMP::ActOnOpenMPLinearClause(
     ArrayRef<Expr *> VarList, Expr *Step, SourceLocation StartLoc,
     SourceLocation LParenLoc, OpenMPLinearClauseKind LinKind,
     SourceLocation LinLoc, SourceLocation ColonLoc,
@@ -20409,7 +20486,7 @@ OMPClause *Sema::ActOnOpenMPLinearClause(
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange);
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange);
     if (Res.second) {
       // It will be analyzed later.
       Vars.push_back(RefExpr);
@@ -20431,7 +20508,7 @@ OMPClause *Sema::ActOnOpenMPLinearClause(
     if (DVar.RefExpr) {
       Diag(ELoc, diag::err_omp_wrong_dsa) << getOpenMPClauseName(DVar.CKind)
                                           << getOpenMPClauseName(OMPC_linear);
-      reportOriginalDsa(*this, DSAStack, D, DVar);
+      reportOriginalDsa(SemaRef, DSAStack, D, DVar);
       continue;
     }
 
@@ -20441,29 +20518,29 @@ OMPClause *Sema::ActOnOpenMPLinearClause(
 
     // Build private copy of original var.
     VarDecl *Private =
-        buildVarDecl(*this, ELoc, Type, D->getName(),
+        buildVarDecl(SemaRef, ELoc, Type, D->getName(),
                      D->hasAttrs() ? &D->getAttrs() : nullptr,
                      VD ? cast<DeclRefExpr>(SimpleRefExpr) : nullptr);
-    DeclRefExpr *PrivateRef = buildDeclRefExpr(*this, Private, Type, ELoc);
+    DeclRefExpr *PrivateRef = buildDeclRefExpr(SemaRef, Private, Type, ELoc);
     // Build var to save initial value.
-    VarDecl *Init = buildVarDecl(*this, ELoc, Type, ".linear.start");
+    VarDecl *Init = buildVarDecl(SemaRef, ELoc, Type, ".linear.start");
     Expr *InitExpr;
     DeclRefExpr *Ref = nullptr;
-    if (!VD && !CurContext->isDependentContext()) {
-      Ref = buildCapture(*this, D, SimpleRefExpr, /*WithInit=*/false);
+    if (!VD && !SemaRef.CurContext->isDependentContext()) {
+      Ref = buildCapture(SemaRef, D, SimpleRefExpr, /*WithInit=*/false);
       if (!isOpenMPCapturedDecl(D)) {
         ExprCaptures.push_back(Ref->getDecl());
         if (Ref->getDecl()->hasAttr<OMPCaptureNoInitAttr>()) {
-          ExprResult RefRes = DefaultLvalueConversion(Ref);
+          ExprResult RefRes = SemaRef.DefaultLvalueConversion(Ref);
           if (!RefRes.isUsable())
             continue;
           ExprResult PostUpdateRes =
-              BuildBinOp(DSAStack->getCurScope(), ELoc, BO_Assign,
-                         SimpleRefExpr, RefRes.get());
+              SemaRef.BuildBinOp(DSAStack->getCurScope(), ELoc, BO_Assign,
+                                 SimpleRefExpr, RefRes.get());
           if (!PostUpdateRes.isUsable())
             continue;
           ExprPostUpdates.push_back(
-              IgnoredValueConversions(PostUpdateRes.get()).get());
+              SemaRef.IgnoredValueConversions(PostUpdateRes.get()).get());
         }
       }
     }
@@ -20471,12 +20548,13 @@ OMPClause *Sema::ActOnOpenMPLinearClause(
       InitExpr = VD ? VD->getInit() : SimpleRefExpr;
     else
       InitExpr = VD ? SimpleRefExpr : Ref;
-    AddInitializerToDecl(Init, DefaultLvalueConversion(InitExpr).get(),
-                         /*DirectInit=*/false);
-    DeclRefExpr *InitRef = buildDeclRefExpr(*this, Init, Type, ELoc);
+    SemaRef.AddInitializerToDecl(
+        Init, SemaRef.DefaultLvalueConversion(InitExpr).get(),
+        /*DirectInit=*/false);
+    DeclRefExpr *InitRef = buildDeclRefExpr(SemaRef, Init, Type, ELoc);
 
     DSAStack->addDSA(D, RefExpr->IgnoreParens(), OMPC_linear, Ref);
-    Vars.push_back((VD || CurContext->isDependentContext())
+    Vars.push_back((VD || SemaRef.CurContext->isDependentContext())
                        ? RefExpr->IgnoreParens()
                        : Ref);
     Privates.push_back(PrivateRef);
@@ -20499,17 +20577,18 @@ OMPClause *Sema::ActOnOpenMPLinearClause(
 
     // Build var to save the step value.
     VarDecl *SaveVar =
-        buildVarDecl(*this, StepLoc, StepExpr->getType(), ".linear.step");
+        buildVarDecl(SemaRef, StepLoc, StepExpr->getType(), ".linear.step");
     ExprResult SaveRef =
-        buildDeclRefExpr(*this, SaveVar, StepExpr->getType(), StepLoc);
-    ExprResult CalcStep =
-        BuildBinOp(CurScope, StepLoc, BO_Assign, SaveRef.get(), StepExpr);
-    CalcStep = ActOnFinishFullExpr(CalcStep.get(), /*DiscardedValue*/ false);
+        buildDeclRefExpr(SemaRef, SaveVar, StepExpr->getType(), StepLoc);
+    ExprResult CalcStep = SemaRef.BuildBinOp(
+        SemaRef.getCurScope(), StepLoc, BO_Assign, SaveRef.get(), StepExpr);
+    CalcStep =
+        SemaRef.ActOnFinishFullExpr(CalcStep.get(), /*DiscardedValue*/ false);
 
     // Warn about zero linear step (it would be probably better specified as
     // making corresponding variables 'const').
     if (std::optional<llvm::APSInt> Result =
-            StepExpr->getIntegerConstantExpr(Context)) {
+            StepExpr->getIntegerConstantExpr(getASTContext())) {
       if (!Result->isNegative() && !Result->isStrictlyPositive())
         Diag(StepLoc, diag::warn_omp_linear_step_zero)
             << Vars[0] << (Vars.size() > 1);
@@ -20520,11 +20599,11 @@ OMPClause *Sema::ActOnOpenMPLinearClause(
     }
   }
 
-  return OMPLinearClause::Create(Context, StartLoc, LParenLoc, LinKind, LinLoc,
-                                 ColonLoc, StepModifierLoc, EndLoc, Vars,
-                                 Privates, Inits, StepExpr, CalcStepExpr,
-                                 buildPreInits(Context, ExprCaptures),
-                                 buildPostUpdate(*this, ExprPostUpdates));
+  return OMPLinearClause::Create(getASTContext(), StartLoc, LParenLoc, LinKind,
+                                 LinLoc, ColonLoc, StepModifierLoc, EndLoc,
+                                 Vars, Privates, Inits, StepExpr, CalcStepExpr,
+                                 buildPreInits(getASTContext(), ExprCaptures),
+                                 buildPostUpdate(SemaRef, ExprPostUpdates));
 }
 
 static bool FinishOpenMPLinearClause(OMPLinearClause &Clause, DeclRefExpr *IV,
@@ -20630,7 +20709,7 @@ static bool FinishOpenMPLinearClause(OMPLinearClause &Clause, DeclRefExpr *IV,
   return HasErrors;
 }
 
-OMPClause *Sema::ActOnOpenMPAlignedClause(
+OMPClause *SemaOpenMP::ActOnOpenMPAlignedClause(
     ArrayRef<Expr *> VarList, Expr *Alignment, SourceLocation StartLoc,
     SourceLocation LParenLoc, SourceLocation ColonLoc, SourceLocation EndLoc) {
   SmallVector<Expr *, 8> Vars;
@@ -20639,7 +20718,7 @@ OMPClause *Sema::ActOnOpenMPAlignedClause(
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange);
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange);
     if (Res.second) {
       // It will be analyzed later.
       Vars.push_back(RefExpr);
@@ -20659,7 +20738,7 @@ OMPClause *Sema::ActOnOpenMPAlignedClause(
     if (!Ty || (!Ty->isArrayType() && !Ty->isPointerType())) {
       Diag(ELoc, diag::err_omp_aligned_expected_array_or_ptr)
           << QType << getLangOpts().CPlusPlus << ERange;
-      bool IsDecl = !VD || VD->isThisDeclarationADefinition(Context) ==
+      bool IsDecl = !VD || VD->isThisDeclarationADefinition(getASTContext()) ==
                                VarDecl::DeclarationOnly;
       Diag(D->getLocation(),
            IsDecl ? diag::note_previous_decl : diag::note_defined_here)
@@ -20679,9 +20758,10 @@ OMPClause *Sema::ActOnOpenMPAlignedClause(
 
     DeclRefExpr *Ref = nullptr;
     if (!VD && isOpenMPCapturedDecl(D))
-      Ref = buildCapture(*this, D, SimpleRefExpr, /*WithInit=*/true);
-    Vars.push_back(DefaultFunctionArrayConversion(
-                       (VD || !Ref) ? RefExpr->IgnoreParens() : Ref)
+      Ref = buildCapture(SemaRef, D, SimpleRefExpr, /*WithInit=*/true);
+    Vars.push_back(SemaRef
+                       .DefaultFunctionArrayConversion(
+                           (VD || !Ref) ? RefExpr->IgnoreParens() : Ref)
                        .get());
   }
 
@@ -20700,14 +20780,14 @@ OMPClause *Sema::ActOnOpenMPAlignedClause(
   if (Vars.empty())
     return nullptr;
 
-  return OMPAlignedClause::Create(Context, StartLoc, LParenLoc, ColonLoc,
-                                  EndLoc, Vars, Alignment);
+  return OMPAlignedClause::Create(getASTContext(), StartLoc, LParenLoc,
+                                  ColonLoc, EndLoc, Vars, Alignment);
 }
 
-OMPClause *Sema::ActOnOpenMPCopyinClause(ArrayRef<Expr *> VarList,
-                                         SourceLocation StartLoc,
-                                         SourceLocation LParenLoc,
-                                         SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPCopyinClause(ArrayRef<Expr *> VarList,
+                                               SourceLocation StartLoc,
+                                               SourceLocation LParenLoc,
+                                               SourceLocation EndLoc) {
   SmallVector<Expr *, 8> Vars;
   SmallVector<Expr *, 8> SrcExprs;
   SmallVector<Expr *, 8> DstExprs;
@@ -20761,26 +20841,28 @@ OMPClause *Sema::ActOnOpenMPCopyinClause(ArrayRef<Expr *> VarList,
     //  A variable of class type (or array thereof) that appears in a
     //  copyin clause requires an accessible, unambiguous copy assignment
     //  operator for the class type.
-    QualType ElemType = Context.getBaseElementType(Type).getNonReferenceType();
+    QualType ElemType =
+        getASTContext().getBaseElementType(Type).getNonReferenceType();
     VarDecl *SrcVD =
-        buildVarDecl(*this, DE->getBeginLoc(), ElemType.getUnqualifiedType(),
+        buildVarDecl(SemaRef, DE->getBeginLoc(), ElemType.getUnqualifiedType(),
                      ".copyin.src", VD->hasAttrs() ? &VD->getAttrs() : nullptr);
     DeclRefExpr *PseudoSrcExpr = buildDeclRefExpr(
-        *this, SrcVD, ElemType.getUnqualifiedType(), DE->getExprLoc());
+        SemaRef, SrcVD, ElemType.getUnqualifiedType(), DE->getExprLoc());
     VarDecl *DstVD =
-        buildVarDecl(*this, DE->getBeginLoc(), ElemType, ".copyin.dst",
+        buildVarDecl(SemaRef, DE->getBeginLoc(), ElemType, ".copyin.dst",
                      VD->hasAttrs() ? &VD->getAttrs() : nullptr);
     DeclRefExpr *PseudoDstExpr =
-        buildDeclRefExpr(*this, DstVD, ElemType, DE->getExprLoc());
+        buildDeclRefExpr(SemaRef, DstVD, ElemType, DE->getExprLoc());
     // For arrays generate assignment operation for single element and replace
     // it by the original array element in CodeGen.
     ExprResult AssignmentOp =
-        BuildBinOp(/*S=*/nullptr, DE->getExprLoc(), BO_Assign, PseudoDstExpr,
-                   PseudoSrcExpr);
+        SemaRef.BuildBinOp(/*S=*/nullptr, DE->getExprLoc(), BO_Assign,
+                           PseudoDstExpr, PseudoSrcExpr);
     if (AssignmentOp.isInvalid())
       continue;
-    AssignmentOp = ActOnFinishFullExpr(AssignmentOp.get(), DE->getExprLoc(),
-                                       /*DiscardedValue*/ false);
+    AssignmentOp =
+        SemaRef.ActOnFinishFullExpr(AssignmentOp.get(), DE->getExprLoc(),
+                                    /*DiscardedValue*/ false);
     if (AssignmentOp.isInvalid())
       continue;
 
@@ -20794,14 +20876,14 @@ OMPClause *Sema::ActOnOpenMPCopyinClause(ArrayRef<Expr *> VarList,
   if (Vars.empty())
     return nullptr;
 
-  return OMPCopyinClause::Create(Context, StartLoc, LParenLoc, EndLoc, Vars,
-                                 SrcExprs, DstExprs, AssignmentOps);
+  return OMPCopyinClause::Create(getASTContext(), StartLoc, LParenLoc, EndLoc,
+                                 Vars, SrcExprs, DstExprs, AssignmentOps);
 }
 
-OMPClause *Sema::ActOnOpenMPCopyprivateClause(ArrayRef<Expr *> VarList,
-                                              SourceLocation StartLoc,
-                                              SourceLocation LParenLoc,
-                                              SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPCopyprivateClause(ArrayRef<Expr *> VarList,
+                                                    SourceLocation StartLoc,
+                                                    SourceLocation LParenLoc,
+                                                    SourceLocation EndLoc) {
   SmallVector<Expr *, 8> Vars;
   SmallVector<Expr *, 8> SrcExprs;
   SmallVector<Expr *, 8> DstExprs;
@@ -20811,7 +20893,7 @@ OMPClause *Sema::ActOnOpenMPCopyprivateClause(ArrayRef<Expr *> VarList,
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange);
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange);
     if (Res.second) {
       // It will be analyzed later.
       Vars.push_back(RefExpr);
@@ -20837,7 +20919,7 @@ OMPClause *Sema::ActOnOpenMPCopyprivateClause(ArrayRef<Expr *> VarList,
         Diag(ELoc, diag::err_omp_wrong_dsa)
             << getOpenMPClauseName(DVar.CKind)
             << getOpenMPClauseName(OMPC_copyprivate);
-        reportOriginalDsa(*this, DSAStack, D, DVar);
+        reportOriginalDsa(SemaRef, DSAStack, D, DVar);
         continue;
       }
 
@@ -20850,7 +20932,7 @@ OMPClause *Sema::ActOnOpenMPCopyprivateClause(ArrayRef<Expr *> VarList,
           Diag(ELoc, diag::err_omp_required_access)
               << getOpenMPClauseName(OMPC_copyprivate)
               << "threadprivate or private in the enclosing context";
-          reportOriginalDsa(*this, DSAStack, D, DVar);
+          reportOriginalDsa(SemaRef, DSAStack, D, DVar);
           continue;
         }
       }
@@ -20861,7 +20943,7 @@ OMPClause *Sema::ActOnOpenMPCopyprivateClause(ArrayRef<Expr *> VarList,
       Diag(ELoc, diag::err_omp_variably_modified_type_not_supported)
           << getOpenMPClauseName(OMPC_copyprivate) << Type
           << getOpenMPDirectiveName(DSAStack->getCurrentDirective());
-      bool IsDecl = !VD || VD->isThisDeclarationADefinition(Context) ==
+      bool IsDecl = !VD || VD->isThisDeclarationADefinition(getASTContext()) ==
                                VarDecl::DeclarationOnly;
       Diag(D->getLocation(),
            IsDecl ? diag::note_previous_decl : diag::note_defined_here)
@@ -20873,22 +20955,23 @@ OMPClause *Sema::ActOnOpenMPCopyprivateClause(ArrayRef<Expr *> VarList,
     //  A variable of class type (or array thereof) that appears in a
     //  copyin clause requires an accessible, unambiguous copy assignment
     //  operator for the class type.
-    Type = Context.getBaseElementType(Type.getNonReferenceType())
+    Type = getASTContext()
+               .getBaseElementType(Type.getNonReferenceType())
                .getUnqualifiedType();
     VarDecl *SrcVD =
-        buildVarDecl(*this, RefExpr->getBeginLoc(), Type, ".copyprivate.src",
+        buildVarDecl(SemaRef, RefExpr->getBeginLoc(), Type, ".copyprivate.src",
                      D->hasAttrs() ? &D->getAttrs() : nullptr);
-    DeclRefExpr *PseudoSrcExpr = buildDeclRefExpr(*this, SrcVD, Type, ELoc);
+    DeclRefExpr *PseudoSrcExpr = buildDeclRefExpr(SemaRef, SrcVD, Type, ELoc);
     VarDecl *DstVD =
-        buildVarDecl(*this, RefExpr->getBeginLoc(), Type, ".copyprivate.dst",
+        buildVarDecl(SemaRef, RefExpr->getBeginLoc(), Type, ".copyprivate.dst",
                      D->hasAttrs() ? &D->getAttrs() : nullptr);
-    DeclRefExpr *PseudoDstExpr = buildDeclRefExpr(*this, DstVD, Type, ELoc);
-    ExprResult AssignmentOp = BuildBinOp(
+    DeclRefExpr *PseudoDstExpr = buildDeclRefExpr(SemaRef, DstVD, Type, ELoc);
+    ExprResult AssignmentOp = SemaRef.BuildBinOp(
         DSAStack->getCurScope(), ELoc, BO_Assign, PseudoDstExpr, PseudoSrcExpr);
     if (AssignmentOp.isInvalid())
       continue;
-    AssignmentOp =
-        ActOnFinishFullExpr(AssignmentOp.get(), ELoc, /*DiscardedValue*/ false);
+    AssignmentOp = SemaRef.ActOnFinishFullExpr(AssignmentOp.get(), ELoc,
+                                               /*DiscardedValue*/ false);
     if (AssignmentOp.isInvalid())
       continue;
 
@@ -20897,7 +20980,7 @@ OMPClause *Sema::ActOnOpenMPCopyprivateClause(ArrayRef<Expr *> VarList,
     assert(VD || isOpenMPCapturedDecl(D));
     Vars.push_back(
         VD ? RefExpr->IgnoreParens()
-           : buildCapture(*this, D, SimpleRefExpr, /*WithInit=*/false));
+           : buildCapture(SemaRef, D, SimpleRefExpr, /*WithInit=*/false));
     SrcExprs.push_back(PseudoSrcExpr);
     DstExprs.push_back(PseudoDstExpr);
     AssignmentOps.push_back(AssignmentOp.get());
@@ -20906,18 +20989,20 @@ OMPClause *Sema::ActOnOpenMPCopyprivateClause(ArrayRef<Expr *> VarList,
   if (Vars.empty())
     return nullptr;
 
-  return OMPCopyprivateClause::Create(Context, StartLoc, LParenLoc, EndLoc,
-                                      Vars, SrcExprs, DstExprs, AssignmentOps);
+  return OMPCopyprivateClause::Create(getASTContext(), StartLoc, LParenLoc,
+                                      EndLoc, Vars, SrcExprs, DstExprs,
+                                      AssignmentOps);
 }
 
-OMPClause *Sema::ActOnOpenMPFlushClause(ArrayRef<Expr *> VarList,
-                                        SourceLocation StartLoc,
-                                        SourceLocation LParenLoc,
-                                        SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPFlushClause(ArrayRef<Expr *> VarList,
+                                              SourceLocation StartLoc,
+                                              SourceLocation LParenLoc,
+                                              SourceLocation EndLoc) {
   if (VarList.empty())
     return nullptr;
 
-  return OMPFlushClause::Create(Context, StartLoc, LParenLoc, EndLoc, VarList);
+  return OMPFlushClause::Create(getASTContext(), StartLoc, LParenLoc, EndLoc,
+                                VarList);
 }
 
 /// Tries to find omp_depend_t. type.
@@ -20937,22 +21022,23 @@ static bool findOMPDependT(Sema &S, SourceLocation Loc, DSAStackTy *Stack,
   return true;
 }
 
-OMPClause *Sema::ActOnOpenMPDepobjClause(Expr *Depobj, SourceLocation StartLoc,
-                                         SourceLocation LParenLoc,
-                                         SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPDepobjClause(Expr *Depobj,
+                                               SourceLocation StartLoc,
+                                               SourceLocation LParenLoc,
+                                               SourceLocation EndLoc) {
   if (!Depobj)
     return nullptr;
 
-  bool OMPDependTFound = findOMPDependT(*this, StartLoc, DSAStack);
+  bool OMPDependTFound = findOMPDependT(SemaRef, StartLoc, DSAStack);
 
   // OpenMP 5.0, 2.17.10.1 depobj Construct
   // depobj is an lvalue expression of type omp_depend_t.
   if (!Depobj->isTypeDependent() && !Depobj->isValueDependent() &&
       !Depobj->isInstantiationDependent() &&
       !Depobj->containsUnexpandedParameterPack() &&
-      (OMPDependTFound &&
-       !Context.typesAreCompatible(DSAStack->getOMPDependT(), Depobj->getType(),
-                                   /*CompareUnqualified=*/true))) {
+      (OMPDependTFound && !getASTContext().typesAreCompatible(
+                              DSAStack->getOMPDependT(), Depobj->getType(),
+                              /*CompareUnqualified=*/true))) {
     Diag(Depobj->getExprLoc(), diag::err_omp_expected_omp_depend_t_lvalue)
         << 0 << Depobj->getType() << Depobj->getSourceRange();
   }
@@ -20962,7 +21048,8 @@ OMPClause *Sema::ActOnOpenMPDepobjClause(Expr *Depobj, SourceLocation StartLoc,
         << 1 << Depobj->getSourceRange();
   }
 
-  return OMPDepobjClause::Create(Context, StartLoc, LParenLoc, EndLoc, Depobj);
+  return OMPDepobjClause::Create(getASTContext(), StartLoc, LParenLoc, EndLoc,
+                                 Depobj);
 }
 
 namespace {
@@ -21062,8 +21149,9 @@ ProcessOpenMPDoacrossClauseCommon(Sema &SemaRef, bool IsSource,
         continue;
       }
       if (RHS) {
-        ExprResult RHSRes = SemaRef.VerifyPositiveIntegerConstantInClause(
-            RHS, OMPC_depend, /*StrictlyPositive=*/false);
+        ExprResult RHSRes =
+            SemaRef.OpenMP().VerifyPositiveIntegerConstantInClause(
+                RHS, OMPC_depend, /*StrictlyPositive=*/false);
         if (RHSRes.isInvalid())
           continue;
       }
@@ -21094,11 +21182,10 @@ ProcessOpenMPDoacrossClauseCommon(Sema &SemaRef, bool IsSource,
   return {Vars, OpsOffs, TotalDepCount};
 }
 
-OMPClause *
-Sema::ActOnOpenMPDependClause(const OMPDependClause::DependDataTy &Data,
-                              Expr *DepModifier, ArrayRef<Expr *> VarList,
-                              SourceLocation StartLoc, SourceLocation LParenLoc,
-                              SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPDependClause(
+    const OMPDependClause::DependDataTy &Data, Expr *DepModifier,
+    ArrayRef<Expr *> VarList, SourceLocation StartLoc, SourceLocation LParenLoc,
+    SourceLocation EndLoc) {
   OpenMPDependClauseKind DepKind = Data.DepKind;
   SourceLocation DepLoc = Data.DepLoc;
   if (DSAStack->getCurrentDirective() == OMPD_ordered &&
@@ -21116,17 +21203,18 @@ Sema::ActOnOpenMPDependClause(const OMPDependClause::DependDataTy &Data,
        DSAStack->getCurrentDirective() == OMPD_depobj) &&
       (DepKind == OMPC_DEPEND_unknown || DepKind == OMPC_DEPEND_source ||
        DepKind == OMPC_DEPEND_sink ||
-       ((LangOpts.OpenMP < 50 ||
+       ((getLangOpts().OpenMP < 50 ||
          DSAStack->getCurrentDirective() == OMPD_depobj) &&
         DepKind == OMPC_DEPEND_depobj))) {
     SmallVector<unsigned, 6> Except = {OMPC_DEPEND_source, OMPC_DEPEND_sink,
                                        OMPC_DEPEND_outallmemory,
                                        OMPC_DEPEND_inoutallmemory};
-    if (LangOpts.OpenMP < 50 || DSAStack->getCurrentDirective() == OMPD_depobj)
+    if (getLangOpts().OpenMP < 50 ||
+        DSAStack->getCurrentDirective() == OMPD_depobj)
       Except.push_back(OMPC_DEPEND_depobj);
-    if (LangOpts.OpenMP < 51)
+    if (getLangOpts().OpenMP < 51)
       Except.push_back(OMPC_DEPEND_inoutset);
-    std::string Expected = (LangOpts.OpenMP >= 50 && !DepModifier)
+    std::string Expected = (getLangOpts().OpenMP >= 50 && !DepModifier)
                                ? "depend modifier(iterator) or "
                                : "";
     Diag(DepLoc, diag::err_omp_unexpected_clause_value)
@@ -21152,7 +21240,7 @@ Sema::ActOnOpenMPDependClause(const OMPDependClause::DependDataTy &Data,
 
   if (DepKind == OMPC_DEPEND_sink || DepKind == OMPC_DEPEND_source) {
     DoacrossDataInfoTy VarOffset = ProcessOpenMPDoacrossClauseCommon(
-        *this, DepKind == OMPC_DEPEND_source, VarList, DSAStack, EndLoc);
+        SemaRef, DepKind == OMPC_DEPEND_source, VarList, DSAStack, EndLoc);
     Vars = VarOffset.Vars;
     OpsOffs = VarOffset.OpsOffs;
     TotalDepCount = VarOffset.TotalDepCount;
@@ -21168,9 +21256,9 @@ Sema::ActOnOpenMPDependClause(const OMPDependClause::DependDataTy &Data,
       SourceLocation ELoc = RefExpr->getExprLoc();
       Expr *SimpleExpr = RefExpr->IgnoreParenCasts();
       if (DepKind != OMPC_DEPEND_sink && DepKind != OMPC_DEPEND_source) {
-        bool OMPDependTFound = LangOpts.OpenMP >= 50;
+        bool OMPDependTFound = getLangOpts().OpenMP >= 50;
         if (OMPDependTFound)
-          OMPDependTFound = findOMPDependT(*this, StartLoc, DSAStack,
+          OMPDependTFound = findOMPDependT(SemaRef, StartLoc, DSAStack,
                                            DepKind == OMPC_DEPEND_depobj);
         if (DepKind == OMPC_DEPEND_depobj) {
           // OpenMP 5.0, 2.17.11 depend Clause, Restrictions, C/C++
@@ -21180,8 +21268,8 @@ Sema::ActOnOpenMPDependClause(const OMPDependClause::DependDataTy &Data,
               !RefExpr->isInstantiationDependent() &&
               !RefExpr->containsUnexpandedParameterPack() &&
               (OMPDependTFound &&
-               !Context.hasSameUnqualifiedType(DSAStack->getOMPDependT(),
-                                               RefExpr->getType()))) {
+               !getASTContext().hasSameUnqualifiedType(
+                   DSAStack->getOMPDependT(), RefExpr->getType()))) {
             Diag(ELoc, diag::err_omp_expected_omp_depend_t_lvalue)
                 << 0 << RefExpr->getType() << RefExpr->getSourceRange();
             continue;
@@ -21212,7 +21300,7 @@ Sema::ActOnOpenMPDependClause(const OMPDependClause::DependDataTy &Data,
             const Expr *Length = OASE->getLength();
             Expr::EvalResult Result;
             if (Length && !Length->isValueDependent() &&
-                Length->EvaluateAsInt(Result, Context) &&
+                Length->EvaluateAsInt(Result, getASTContext()) &&
                 Result.Val.getInt().isZero()) {
               Diag(ELoc,
                    diag::err_omp_depend_zero_length_array_section_not_allowed)
@@ -21232,8 +21320,9 @@ Sema::ActOnOpenMPDependClause(const OMPDependClause::DependDataTy &Data,
                (OMPDependTFound && DSAStack->getOMPDependT().getTypePtr() ==
                                        ExprTy.getTypePtr()))) {
             Diag(ELoc, diag::err_omp_expected_addressable_lvalue_or_array_item)
-                << (LangOpts.OpenMP >= 50 ? 1 : 0)
-                << (LangOpts.OpenMP >= 50 ? 1 : 0) << RefExpr->getSourceRange();
+                << (getLangOpts().OpenMP >= 50 ? 1 : 0)
+                << (getLangOpts().OpenMP >= 50 ? 1 : 0)
+                << RefExpr->getSourceRange();
             continue;
           }
 
@@ -21245,22 +21334,24 @@ Sema::ActOnOpenMPDependClause(const OMPDependClause::DependDataTy &Data,
                    ->isPointerType() &&
               !ASE->getBase()->getType().getNonReferenceType()->isArrayType()) {
             Diag(ELoc, diag::err_omp_expected_addressable_lvalue_or_array_item)
-                << (LangOpts.OpenMP >= 50 ? 1 : 0)
-                << (LangOpts.OpenMP >= 50 ? 1 : 0) << RefExpr->getSourceRange();
+                << (getLangOpts().OpenMP >= 50 ? 1 : 0)
+                << (getLangOpts().OpenMP >= 50 ? 1 : 0)
+                << RefExpr->getSourceRange();
             continue;
           }
 
           ExprResult Res;
           {
-            Sema::TentativeAnalysisScope Trap(*this);
-            Res = CreateBuiltinUnaryOp(ELoc, UO_AddrOf,
-                                       RefExpr->IgnoreParenImpCasts());
+            Sema::TentativeAnalysisScope Trap(SemaRef);
+            Res = SemaRef.CreateBuiltinUnaryOp(ELoc, UO_AddrOf,
+                                               RefExpr->IgnoreParenImpCasts());
           }
           if (!Res.isUsable() && !isa<OMPArraySectionExpr>(SimpleExpr) &&
               !isa<OMPArrayShapingExpr>(SimpleExpr)) {
             Diag(ELoc, diag::err_omp_expected_addressable_lvalue_or_array_item)
-                << (LangOpts.OpenMP >= 50 ? 1 : 0)
-                << (LangOpts.OpenMP >= 50 ? 1 : 0) << RefExpr->getSourceRange();
+                << (getLangOpts().OpenMP >= 50 ? 1 : 0)
+                << (getLangOpts().OpenMP >= 50 ? 1 : 0)
+                << RefExpr->getSourceRange();
             continue;
           }
         }
@@ -21275,7 +21366,7 @@ Sema::ActOnOpenMPDependClause(const OMPDependClause::DependDataTy &Data,
     return nullptr;
 
   auto *C = OMPDependClause::Create(
-      Context, StartLoc, LParenLoc, EndLoc,
+      getASTContext(), StartLoc, LParenLoc, EndLoc,
       {DepKind, DepLoc, Data.ColonLoc, Data.OmpAllMemoryLoc}, DepModifier, Vars,
       TotalDepCount.getZExtValue());
   if ((DepKind == OMPC_DEPEND_sink || DepKind == OMPC_DEPEND_source) &&
@@ -21284,12 +21375,11 @@ Sema::ActOnOpenMPDependClause(const OMPDependClause::DependDataTy &Data,
   return C;
 }
 
-OMPClause *Sema::ActOnOpenMPDeviceClause(OpenMPDeviceClauseModifier Modifier,
-                                         Expr *Device, SourceLocation StartLoc,
-                                         SourceLocation LParenLoc,
-                                         SourceLocation ModifierLoc,
-                                         SourceLocation EndLoc) {
-  assert((ModifierLoc.isInvalid() || LangOpts.OpenMP >= 50) &&
+OMPClause *SemaOpenMP::ActOnOpenMPDeviceClause(
+    OpenMPDeviceClauseModifier Modifier, Expr *Device, SourceLocation StartLoc,
+    SourceLocation LParenLoc, SourceLocation ModifierLoc,
+    SourceLocation EndLoc) {
+  assert((ModifierLoc.isInvalid() || getLangOpts().OpenMP >= 50) &&
          "Unexpected device modifier in OpenMP < 50.");
 
   bool ErrorFound = false;
@@ -21306,7 +21396,7 @@ OMPClause *Sema::ActOnOpenMPDeviceClause(OpenMPDeviceClauseModifier Modifier,
 
   // OpenMP [2.9.1, Restrictions]
   // The device expression must evaluate to a non-negative integer value.
-  ErrorFound = !isNonNegativeIntegerValue(ValExpr, *this, OMPC_device,
+  ErrorFound = !isNonNegativeIntegerValue(ValExpr, SemaRef, OMPC_device,
                                           /*StrictlyPositive=*/false) ||
                ErrorFound;
   if (ErrorFound)
@@ -21317,7 +21407,7 @@ OMPClause *Sema::ActOnOpenMPDeviceClause(OpenMPDeviceClauseModifier Modifier,
   // the reverse_offload clause must be specified.
   if (Modifier == OMPC_DEVICE_ancestor) {
     if (!DSAStack->hasRequiresDeclWithClause<OMPReverseOffloadClause>()) {
-      targetDiag(
+      SemaRef.targetDiag(
           StartLoc,
           diag::err_omp_device_ancestor_without_requires_reverse_offload);
       ErrorFound = true;
@@ -21326,15 +21416,16 @@ OMPClause *Sema::ActOnOpenMPDeviceClause(OpenMPDeviceClauseModifier Modifier,
 
   OpenMPDirectiveKind DKind = DSAStack->getCurrentDirective();
   OpenMPDirectiveKind CaptureRegion =
-      getOpenMPCaptureRegionForClause(DKind, OMPC_device, LangOpts.OpenMP);
-  if (CaptureRegion != OMPD_unknown && !CurContext->isDependentContext()) {
-    ValExpr = MakeFullExpr(ValExpr).get();
+      getOpenMPCaptureRegionForClause(DKind, OMPC_device, getLangOpts().OpenMP);
+  if (CaptureRegion != OMPD_unknown &&
+      !SemaRef.CurContext->isDependentContext()) {
+    ValExpr = SemaRef.MakeFullExpr(ValExpr).get();
     llvm::MapVector<const Expr *, DeclRefExpr *> Captures;
-    ValExpr = tryBuildCapture(*this, ValExpr, Captures).get();
-    HelperValStmt = buildPreInits(Context, Captures);
+    ValExpr = tryBuildCapture(SemaRef, ValExpr, Captures).get();
+    HelperValStmt = buildPreInits(getASTContext(), Captures);
   }
 
-  return new (Context)
+  return new (getASTContext())
       OMPDeviceClause(Modifier, ValExpr, HelperValStmt, CaptureRegion, StartLoc,
                       LParenLoc, ModifierLoc, EndLoc);
 }
@@ -22527,7 +22618,7 @@ static void checkMappableExpressionList(
   }
 }
 
-OMPClause *Sema::ActOnOpenMPMapClause(
+OMPClause *SemaOpenMP::ActOnOpenMPMapClause(
     Expr *IteratorModifier, ArrayRef<OpenMPMapModifierKind> MapTypeModifiers,
     ArrayRef<SourceLocation> MapTypeModifiersLoc,
     CXXScopeSpec &MapperIdScopeSpec, DeclarationNameInfo &MapperId,
@@ -22562,7 +22653,7 @@ OMPClause *Sema::ActOnOpenMPMapClause(
   }
 
   MappableVarListInfo MVLI(VarList);
-  checkMappableExpressionList(*this, DSAStack, OMPC_map, MVLI, Locs.StartLoc,
+  checkMappableExpressionList(SemaRef, DSAStack, OMPC_map, MVLI, Locs.StartLoc,
                               MapperIdScopeSpec, MapperId, UnresolvedMappers,
                               MapType, Modifiers, IsMapTypeImplicit,
                               NoDiagnose);
@@ -22570,17 +22661,17 @@ OMPClause *Sema::ActOnOpenMPMapClause(
   // We need to produce a map clause even if we don't have variables so that
   // other diagnostics related with non-existing map clauses are accurate.
   return OMPMapClause::Create(
-      Context, Locs, MVLI.ProcessedVarList, MVLI.VarBaseDeclarations,
+      getASTContext(), Locs, MVLI.ProcessedVarList, MVLI.VarBaseDeclarations,
       MVLI.VarComponents, MVLI.UDMapperList, IteratorModifier, Modifiers,
-      ModifiersLoc, MapperIdScopeSpec.getWithLocInContext(Context), MapperId,
-      MapType, IsMapTypeImplicit, MapLoc);
+      ModifiersLoc, MapperIdScopeSpec.getWithLocInContext(getASTContext()),
+      MapperId, MapType, IsMapTypeImplicit, MapLoc);
 }
 
-QualType Sema::ActOnOpenMPDeclareReductionType(SourceLocation TyLoc,
-                                               TypeResult ParsedType) {
+QualType SemaOpenMP::ActOnOpenMPDeclareReductionType(SourceLocation TyLoc,
+                                                     TypeResult ParsedType) {
   assert(ParsedType.isUsable());
 
-  QualType ReductionType = GetTypeFromParser(ParsedType.get());
+  QualType ReductionType = SemaRef.GetTypeFromParser(ParsedType.get());
   if (ReductionType.isNull())
     return QualType();
 
@@ -22608,15 +22699,17 @@ QualType Sema::ActOnOpenMPDeclareReductionType(SourceLocation TyLoc,
   return ReductionType;
 }
 
-Sema::DeclGroupPtrTy Sema::ActOnOpenMPDeclareReductionDirectiveStart(
+SemaOpenMP::DeclGroupPtrTy
+SemaOpenMP::ActOnOpenMPDeclareReductionDirectiveStart(
     Scope *S, DeclContext *DC, DeclarationName Name,
     ArrayRef<std::pair<QualType, SourceLocation>> ReductionTypes,
     AccessSpecifier AS, Decl *PrevDeclInScope) {
   SmallVector<Decl *, 8> Decls;
   Decls.reserve(ReductionTypes.size());
 
-  LookupResult Lookup(*this, Name, SourceLocation(), LookupOMPReductionName,
-                      forRedeclarationInCurContext());
+  LookupResult Lookup(SemaRef, Name, SourceLocation(),
+                      Sema::LookupOMPReductionName,
+                      SemaRef.forRedeclarationInCurContext());
   // [OpenMP 4.0], 2.15 declare reduction Directive, Restrictions
   // A reduction-identifier may not be re-declared in the current scope for the
   // same type or for a type that is compatible according to the base language
@@ -22627,12 +22720,12 @@ Sema::DeclGroupPtrTy Sema::ActOnOpenMPDeclareReductionDirectiveStart(
   if (S != nullptr) {
     // Find previous declaration with the same name not referenced in other
     // declarations.
-    FunctionScopeInfo *ParentFn = getEnclosingFunction();
+    FunctionScopeInfo *ParentFn = SemaRef.getEnclosingFunction();
     InCompoundScope =
         (ParentFn != nullptr) && !ParentFn->CompoundScopes.empty();
-    LookupName(Lookup, S);
-    FilterLookupForScope(Lookup, DC, S, /*ConsiderLinkage=*/false,
-                         /*AllowInlineNamespace=*/false);
+    SemaRef.LookupName(Lookup, S);
+    SemaRef.FilterLookupForScope(Lookup, DC, S, /*ConsiderLinkage=*/false,
+                                 /*AllowInlineNamespace=*/false);
     llvm::DenseMap<OMPDeclareReductionDecl *, bool> UsedAsPrevious;
     LookupResult::Filter Filter = Lookup.makeFilter();
     while (Filter.hasNext()) {
@@ -22675,8 +22768,8 @@ Sema::DeclGroupPtrTy Sema::ActOnOpenMPDeclareReductionDirectiveStart(
       Invalid = true;
     }
     PreviousRedeclTypes[TyData.first.getCanonicalType()] = TyData.second;
-    auto *DRD = OMPDeclareReductionDecl::Create(Context, DC, TyData.second,
-                                                Name, TyData.first, PrevDRD);
+    auto *DRD = OMPDeclareReductionDecl::Create(
+        getASTContext(), DC, TyData.second, Name, TyData.first, PrevDRD);
     DC->addDecl(DRD);
     DRD->setAccess(AS);
     Decls.push_back(DRD);
@@ -22687,24 +22780,24 @@ Sema::DeclGroupPtrTy Sema::ActOnOpenMPDeclareReductionDirectiveStart(
   }
 
   return DeclGroupPtrTy::make(
-      DeclGroupRef::Create(Context, Decls.begin(), Decls.size()));
+      DeclGroupRef::Create(getASTContext(), Decls.begin(), Decls.size()));
 }
 
-void Sema::ActOnOpenMPDeclareReductionCombinerStart(Scope *S, Decl *D) {
+void SemaOpenMP::ActOnOpenMPDeclareReductionCombinerStart(Scope *S, Decl *D) {
   auto *DRD = cast<OMPDeclareReductionDecl>(D);
 
   // Enter new function scope.
-  PushFunctionScope();
-  setFunctionHasBranchProtectedScope();
-  getCurFunction()->setHasOMPDeclareReductionCombiner();
+  SemaRef.PushFunctionScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
+  SemaRef.getCurFunction()->setHasOMPDeclareReductionCombiner();
 
   if (S != nullptr)
-    PushDeclContext(S, DRD);
+    SemaRef.PushDeclContext(S, DRD);
   else
-    CurContext = DRD;
+    SemaRef.CurContext = DRD;
 
-  PushExpressionEvaluationContext(
-      ExpressionEvaluationContext::PotentiallyEvaluated);
+  SemaRef.PushExpressionEvaluationContext(
+      Sema::ExpressionEvaluationContext::PotentiallyEvaluated);
 
   QualType ReductionType = DRD->getType();
   // Create 'T* omp_parm;T omp_in;'. All references to 'omp_in' will
@@ -22714,7 +22807,7 @@ void Sema::ActOnOpenMPDeclareReductionCombinerStart(Scope *S, Decl *D) {
   // pointers.
   // Create 'T omp_in;' variable.
   VarDecl *OmpInParm =
-      buildVarDecl(*this, D->getLocation(), ReductionType, "omp_in");
+      buildVarDecl(SemaRef, D->getLocation(), ReductionType, "omp_in");
   // Create 'T* omp_parm;T omp_out;'. All references to 'omp_out' will
   // be replaced by '*omp_parm' during codegen. This required because 'omp_out'
   // uses semantics of argument handles by value, but it should be passed by
@@ -22722,28 +22815,29 @@ void Sema::ActOnOpenMPDeclareReductionCombinerStart(Scope *S, Decl *D) {
   // pointers.
   // Create 'T omp_out;' variable.
   VarDecl *OmpOutParm =
-      buildVarDecl(*this, D->getLocation(), ReductionType, "omp_out");
+      buildVarDecl(SemaRef, D->getLocation(), ReductionType, "omp_out");
   if (S != nullptr) {
-    PushOnScopeChains(OmpInParm, S);
-    PushOnScopeChains(OmpOutParm, S);
+    SemaRef.PushOnScopeChains(OmpInParm, S);
+    SemaRef.PushOnScopeChains(OmpOutParm, S);
   } else {
     DRD->addDecl(OmpInParm);
     DRD->addDecl(OmpOutParm);
   }
   Expr *InE =
-      ::buildDeclRefExpr(*this, OmpInParm, ReductionType, D->getLocation());
+      ::buildDeclRefExpr(SemaRef, OmpInParm, ReductionType, D->getLocation());
   Expr *OutE =
-      ::buildDeclRefExpr(*this, OmpOutParm, ReductionType, D->getLocation());
+      ::buildDeclRefExpr(SemaRef, OmpOutParm, ReductionType, D->getLocation());
   DRD->setCombinerData(InE, OutE);
 }
 
-void Sema::ActOnOpenMPDeclareReductionCombinerEnd(Decl *D, Expr *Combiner) {
+void SemaOpenMP::ActOnOpenMPDeclareReductionCombinerEnd(Decl *D,
+                                                        Expr *Combiner) {
   auto *DRD = cast<OMPDeclareReductionDecl>(D);
-  DiscardCleanupsInEvaluationContext();
-  PopExpressionEvaluationContext();
+  SemaRef.DiscardCleanupsInEvaluationContext();
+  SemaRef.PopExpressionEvaluationContext();
 
-  PopDeclContext();
-  PopFunctionScopeInfo();
+  SemaRef.PopDeclContext();
+  SemaRef.PopFunctionScopeInfo();
 
   if (Combiner != nullptr)
     DRD->setCombiner(Combiner);
@@ -22751,20 +22845,21 @@ void Sema::ActOnOpenMPDeclareReductionCombinerEnd(Decl *D, Expr *Combiner) {
     DRD->setInvalidDecl();
 }
 
-VarDecl *Sema::ActOnOpenMPDeclareReductionInitializerStart(Scope *S, Decl *D) {
+VarDecl *SemaOpenMP::ActOnOpenMPDeclareReductionInitializerStart(Scope *S,
+                                                                 Decl *D) {
   auto *DRD = cast<OMPDeclareReductionDecl>(D);
 
   // Enter new function scope.
-  PushFunctionScope();
-  setFunctionHasBranchProtectedScope();
+  SemaRef.PushFunctionScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   if (S != nullptr)
-    PushDeclContext(S, DRD);
+    SemaRef.PushDeclContext(S, DRD);
   else
-    CurContext = DRD;
+    SemaRef.CurContext = DRD;
 
-  PushExpressionEvaluationContext(
-      ExpressionEvaluationContext::PotentiallyEvaluated);
+  SemaRef.PushExpressionEvaluationContext(
+      Sema::ExpressionEvaluationContext::PotentiallyEvaluated);
 
   QualType ReductionType = DRD->getType();
   // Create 'T* omp_parm;T omp_priv;'. All references to 'omp_priv' will
@@ -22774,7 +22869,7 @@ VarDecl *Sema::ActOnOpenMPDeclareReductionInitializerStart(Scope *S, Decl *D) {
   // pointers.
   // Create 'T omp_priv;' variable.
   VarDecl *OmpPrivParm =
-      buildVarDecl(*this, D->getLocation(), ReductionType, "omp_priv");
+      buildVarDecl(SemaRef, D->getLocation(), ReductionType, "omp_priv");
   // Create 'T* omp_parm;T omp_orig;'. All references to 'omp_orig' will
   // be replaced by '*omp_parm' during codegen. This required because 'omp_orig'
   // uses semantics of argument handles by value, but it should be passed by
@@ -22782,30 +22877,30 @@ VarDecl *Sema::ActOnOpenMPDeclareReductionInitializerStart(Scope *S, Decl *D) {
   // pointers.
   // Create 'T omp_orig;' variable.
   VarDecl *OmpOrigParm =
-      buildVarDecl(*this, D->getLocation(), ReductionType, "omp_orig");
+      buildVarDecl(SemaRef, D->getLocation(), ReductionType, "omp_orig");
   if (S != nullptr) {
-    PushOnScopeChains(OmpPrivParm, S);
-    PushOnScopeChains(OmpOrigParm, S);
+    SemaRef.PushOnScopeChains(OmpPrivParm, S);
+    SemaRef.PushOnScopeChains(OmpOrigParm, S);
   } else {
     DRD->addDecl(OmpPrivParm);
     DRD->addDecl(OmpOrigParm);
   }
   Expr *OrigE =
-      ::buildDeclRefExpr(*this, OmpOrigParm, ReductionType, D->getLocation());
+      ::buildDeclRefExpr(SemaRef, OmpOrigParm, ReductionType, D->getLocation());
   Expr *PrivE =
-      ::buildDeclRefExpr(*this, OmpPrivParm, ReductionType, D->getLocation());
+      ::buildDeclRefExpr(SemaRef, OmpPrivParm, ReductionType, D->getLocation());
   DRD->setInitializerData(OrigE, PrivE);
   return OmpPrivParm;
 }
 
-void Sema::ActOnOpenMPDeclareReductionInitializerEnd(Decl *D, Expr *Initializer,
-                                                     VarDecl *OmpPrivParm) {
+void SemaOpenMP::ActOnOpenMPDeclareReductionInitializerEnd(
+    Decl *D, Expr *Initializer, VarDecl *OmpPrivParm) {
   auto *DRD = cast<OMPDeclareReductionDecl>(D);
-  DiscardCleanupsInEvaluationContext();
-  PopExpressionEvaluationContext();
+  SemaRef.DiscardCleanupsInEvaluationContext();
+  SemaRef.PopExpressionEvaluationContext();
 
-  PopDeclContext();
-  PopFunctionScopeInfo();
+  SemaRef.PopDeclContext();
+  SemaRef.PopFunctionScopeInfo();
 
   if (Initializer != nullptr) {
     DRD->setInitializer(Initializer, OMPDeclareReductionInitKind::Call);
@@ -22819,13 +22914,13 @@ void Sema::ActOnOpenMPDeclareReductionInitializerEnd(Decl *D, Expr *Initializer,
   }
 }
 
-Sema::DeclGroupPtrTy Sema::ActOnOpenMPDeclareReductionDirectiveEnd(
+SemaOpenMP::DeclGroupPtrTy SemaOpenMP::ActOnOpenMPDeclareReductionDirectiveEnd(
     Scope *S, DeclGroupPtrTy DeclReductions, bool IsValid) {
   for (Decl *D : DeclReductions.get()) {
     if (IsValid) {
       if (S)
-        PushOnScopeChains(cast<OMPDeclareReductionDecl>(D), S,
-                          /*AddToContext=*/false);
+        SemaRef.PushOnScopeChains(cast<OMPDeclareReductionDecl>(D), S,
+                                  /*AddToContext=*/false);
     } else {
       D->setInvalidDecl();
     }
@@ -22833,25 +22928,26 @@ Sema::DeclGroupPtrTy Sema::ActOnOpenMPDeclareReductionDirectiveEnd(
   return DeclReductions;
 }
 
-TypeResult Sema::ActOnOpenMPDeclareMapperVarDecl(Scope *S, Declarator &D) {
-  TypeSourceInfo *TInfo = GetTypeForDeclarator(D);
+TypeResult SemaOpenMP::ActOnOpenMPDeclareMapperVarDecl(Scope *S,
+                                                       Declarator &D) {
+  TypeSourceInfo *TInfo = SemaRef.GetTypeForDeclarator(D);
   QualType T = TInfo->getType();
   if (D.isInvalidType())
     return true;
 
   if (getLangOpts().CPlusPlus) {
     // Check that there are no default arguments (C++ only).
-    CheckExtraCXXDefaultArguments(D);
+    SemaRef.CheckExtraCXXDefaultArguments(D);
   }
 
-  return CreateParsedType(T, TInfo);
+  return SemaRef.CreateParsedType(T, TInfo);
 }
 
-QualType Sema::ActOnOpenMPDeclareMapperType(SourceLocation TyLoc,
-                                            TypeResult ParsedType) {
+QualType SemaOpenMP::ActOnOpenMPDeclareMapperType(SourceLocation TyLoc,
+                                                  TypeResult ParsedType) {
   assert(ParsedType.isUsable() && "Expect usable parsed mapper type");
 
-  QualType MapperType = GetTypeFromParser(ParsedType.get());
+  QualType MapperType = SemaRef.GetTypeFromParser(ParsedType.get());
   assert(!MapperType.isNull() && "Expect valid mapper type");
 
   // [OpenMP 5.0], 2.19.7.3 declare mapper Directive, Restrictions
@@ -22863,12 +22959,13 @@ QualType Sema::ActOnOpenMPDeclareMapperType(SourceLocation TyLoc,
   return MapperType;
 }
 
-Sema::DeclGroupPtrTy Sema::ActOnOpenMPDeclareMapperDirective(
+SemaOpenMP::DeclGroupPtrTy SemaOpenMP::ActOnOpenMPDeclareMapperDirective(
     Scope *S, DeclContext *DC, DeclarationName Name, QualType MapperType,
     SourceLocation StartLoc, DeclarationName VN, AccessSpecifier AS,
     Expr *MapperVarRef, ArrayRef<OMPClause *> Clauses, Decl *PrevDeclInScope) {
-  LookupResult Lookup(*this, Name, SourceLocation(), LookupOMPMapperName,
-                      forRedeclarationInCurContext());
+  LookupResult Lookup(SemaRef, Name, SourceLocation(),
+                      Sema::LookupOMPMapperName,
+                      SemaRef.forRedeclarationInCurContext());
   // [OpenMP 5.0], 2.19.7.3 declare mapper Directive, Restrictions
   //  A mapper-identifier may not be redeclared in the current scope for the
   //  same type or for a type that is compatible according to the base language
@@ -22879,12 +22976,12 @@ Sema::DeclGroupPtrTy Sema::ActOnOpenMPDeclareMapperDirective(
   if (S != nullptr) {
     // Find previous declaration with the same name not referenced in other
     // declarations.
-    FunctionScopeInfo *ParentFn = getEnclosingFunction();
+    FunctionScopeInfo *ParentFn = SemaRef.getEnclosingFunction();
     InCompoundScope =
         (ParentFn != nullptr) && !ParentFn->CompoundScopes.empty();
-    LookupName(Lookup, S);
-    FilterLookupForScope(Lookup, DC, S, /*ConsiderLinkage=*/false,
-                         /*AllowInlineNamespace=*/false);
+    SemaRef.LookupName(Lookup, S);
+    SemaRef.FilterLookupForScope(Lookup, DC, S, /*ConsiderLinkage=*/false,
+                                 /*AllowInlineNamespace=*/false);
     llvm::DenseMap<OMPDeclareMapperDecl *, bool> UsedAsPrevious;
     LookupResult::Filter Filter = Lookup.makeFilter();
     while (Filter.hasNext()) {
@@ -22929,13 +23026,14 @@ Sema::DeclGroupPtrTy Sema::ActOnOpenMPDeclareMapperDirective(
   // mappers.
   SmallVector<OMPClause *, 4> ClausesWithImplicit(Clauses.begin(),
                                                   Clauses.end());
-  if (LangOpts.OpenMP >= 50)
-    processImplicitMapsWithDefaultMappers(*this, DSAStack, ClausesWithImplicit);
-  auto *DMD =
-      OMPDeclareMapperDecl::Create(Context, DC, StartLoc, Name, MapperType, VN,
-                                   ClausesWithImplicit, PrevDMD);
+  if (getLangOpts().OpenMP >= 50)
+    processImplicitMapsWithDefaultMappers(SemaRef, DSAStack,
+                                          ClausesWithImplicit);
+  auto *DMD = OMPDeclareMapperDecl::Create(getASTContext(), DC, StartLoc, Name,
+                                           MapperType, VN, ClausesWithImplicit,
+                                           PrevDMD);
   if (S)
-    PushOnScopeChains(DMD, S);
+    SemaRef.PushOnScopeChains(DMD, S);
   else
     DC->addDecl(DMD);
   DMD->setAccess(AS);
@@ -22951,105 +23049,106 @@ Sema::DeclGroupPtrTy Sema::ActOnOpenMPDeclareMapperDirective(
   return DeclGroupPtrTy::make(DeclGroupRef(DMD));
 }
 
-ExprResult
-Sema::ActOnOpenMPDeclareMapperDirectiveVarDecl(Scope *S, QualType MapperType,
-                                               SourceLocation StartLoc,
-                                               DeclarationName VN) {
+ExprResult SemaOpenMP::ActOnOpenMPDeclareMapperDirectiveVarDecl(
+    Scope *S, QualType MapperType, SourceLocation StartLoc,
+    DeclarationName VN) {
   TypeSourceInfo *TInfo =
-      Context.getTrivialTypeSourceInfo(MapperType, StartLoc);
-  auto *VD = VarDecl::Create(Context, Context.getTranslationUnitDecl(),
-                             StartLoc, StartLoc, VN.getAsIdentifierInfo(),
-                             MapperType, TInfo, SC_None);
+      getASTContext().getTrivialTypeSourceInfo(MapperType, StartLoc);
+  auto *VD = VarDecl::Create(
+      getASTContext(), getASTContext().getTranslationUnitDecl(), StartLoc,
+      StartLoc, VN.getAsIdentifierInfo(), MapperType, TInfo, SC_None);
   if (S)
-    PushOnScopeChains(VD, S, /*AddToContext=*/false);
-  Expr *E = buildDeclRefExpr(*this, VD, MapperType, StartLoc);
+    SemaRef.PushOnScopeChains(VD, S, /*AddToContext=*/false);
+  Expr *E = buildDeclRefExpr(SemaRef, VD, MapperType, StartLoc);
   DSAStack->addDeclareMapperVarRef(E);
   return E;
 }
 
-void Sema::ActOnOpenMPIteratorVarDecl(VarDecl *VD) {
+void SemaOpenMP::ActOnOpenMPIteratorVarDecl(VarDecl *VD) {
   if (DSAStack->getDeclareMapperVarRef())
     DSAStack->addIteratorVarDecl(VD);
 }
 
-bool Sema::isOpenMPDeclareMapperVarDeclAllowed(const VarDecl *VD) const {
-  assert(LangOpts.OpenMP && "Expected OpenMP mode.");
+bool SemaOpenMP::isOpenMPDeclareMapperVarDeclAllowed(const VarDecl *VD) const {
+  assert(getLangOpts().OpenMP && "Expected OpenMP mode.");
   const Expr *Ref = DSAStack->getDeclareMapperVarRef();
   if (const auto *DRE = cast_or_null<DeclRefExpr>(Ref)) {
     if (VD->getCanonicalDecl() == DRE->getDecl()->getCanonicalDecl())
       return true;
-    if (VD->isUsableInConstantExpressions(Context))
+    if (VD->isUsableInConstantExpressions(getASTContext()))
       return true;
-    if (LangOpts.OpenMP >= 52 && DSAStack->isIteratorVarDecl(VD))
+    if (getLangOpts().OpenMP >= 52 && DSAStack->isIteratorVarDecl(VD))
       return true;
     return false;
   }
   return true;
 }
 
-const ValueDecl *Sema::getOpenMPDeclareMapperVarName() const {
-  assert(LangOpts.OpenMP && "Expected OpenMP mode.");
+const ValueDecl *SemaOpenMP::getOpenMPDeclareMapperVarName() const {
+  assert(getLangOpts().OpenMP && "Expected OpenMP mode.");
   return cast<DeclRefExpr>(DSAStack->getDeclareMapperVarRef())->getDecl();
 }
 
-OMPClause *Sema::ActOnOpenMPNumTeamsClause(Expr *NumTeams,
-                                           SourceLocation StartLoc,
-                                           SourceLocation LParenLoc,
-                                           SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPNumTeamsClause(Expr *NumTeams,
+                                                 SourceLocation StartLoc,
+                                                 SourceLocation LParenLoc,
+                                                 SourceLocation EndLoc) {
   Expr *ValExpr = NumTeams;
   Stmt *HelperValStmt = nullptr;
 
   // OpenMP [teams Constrcut, Restrictions]
   // The num_teams expression must evaluate to a positive integer value.
-  if (!isNonNegativeIntegerValue(ValExpr, *this, OMPC_num_teams,
+  if (!isNonNegativeIntegerValue(ValExpr, SemaRef, OMPC_num_teams,
                                  /*StrictlyPositive=*/true))
     return nullptr;
 
   OpenMPDirectiveKind DKind = DSAStack->getCurrentDirective();
-  OpenMPDirectiveKind CaptureRegion =
-      getOpenMPCaptureRegionForClause(DKind, OMPC_num_teams, LangOpts.OpenMP);
-  if (CaptureRegion != OMPD_unknown && !CurContext->isDependentContext()) {
-    ValExpr = MakeFullExpr(ValExpr).get();
+  OpenMPDirectiveKind CaptureRegion = getOpenMPCaptureRegionForClause(
+      DKind, OMPC_num_teams, getLangOpts().OpenMP);
+  if (CaptureRegion != OMPD_unknown &&
+      !SemaRef.CurContext->isDependentContext()) {
+    ValExpr = SemaRef.MakeFullExpr(ValExpr).get();
     llvm::MapVector<const Expr *, DeclRefExpr *> Captures;
-    ValExpr = tryBuildCapture(*this, ValExpr, Captures).get();
-    HelperValStmt = buildPreInits(Context, Captures);
+    ValExpr = tryBuildCapture(SemaRef, ValExpr, Captures).get();
+    HelperValStmt = buildPreInits(getASTContext(), Captures);
   }
 
-  return new (Context) OMPNumTeamsClause(ValExpr, HelperValStmt, CaptureRegion,
-                                         StartLoc, LParenLoc, EndLoc);
+  return new (getASTContext()) OMPNumTeamsClause(
+      ValExpr, HelperValStmt, CaptureRegion, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPThreadLimitClause(Expr *ThreadLimit,
-                                              SourceLocation StartLoc,
-                                              SourceLocation LParenLoc,
-                                              SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPThreadLimitClause(Expr *ThreadLimit,
+                                                    SourceLocation StartLoc,
+                                                    SourceLocation LParenLoc,
+                                                    SourceLocation EndLoc) {
   Expr *ValExpr = ThreadLimit;
   Stmt *HelperValStmt = nullptr;
 
   // OpenMP [teams Constrcut, Restrictions]
   // The thread_limit expression must evaluate to a positive integer value.
-  if (!isNonNegativeIntegerValue(ValExpr, *this, OMPC_thread_limit,
+  if (!isNonNegativeIntegerValue(ValExpr, SemaRef, OMPC_thread_limit,
                                  /*StrictlyPositive=*/true))
     return nullptr;
 
   OpenMPDirectiveKind DKind = DSAStack->getCurrentDirective();
   OpenMPDirectiveKind CaptureRegion = getOpenMPCaptureRegionForClause(
-      DKind, OMPC_thread_limit, LangOpts.OpenMP);
-  if (CaptureRegion != OMPD_unknown && !CurContext->isDependentContext()) {
-    ValExpr = MakeFullExpr(ValExpr).get();
+      DKind, OMPC_thread_limit, getLangOpts().OpenMP);
+  if (CaptureRegion != OMPD_unknown &&
+      !SemaRef.CurContext->isDependentContext()) {
+    ValExpr = SemaRef.MakeFullExpr(ValExpr).get();
     llvm::MapVector<const Expr *, DeclRefExpr *> Captures;
-    ValExpr = tryBuildCapture(*this, ValExpr, Captures).get();
-    HelperValStmt = buildPreInits(Context, Captures);
+    ValExpr = tryBuildCapture(SemaRef, ValExpr, Captures).get();
+    HelperValStmt = buildPreInits(getASTContext(), Captures);
   }
 
-  return new (Context) OMPThreadLimitClause(
+  return new (getASTContext()) OMPThreadLimitClause(
       ValExpr, HelperValStmt, CaptureRegion, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPPriorityClause(Expr *Priority,
-                                           SourceLocation StartLoc,
-                                           SourceLocation LParenLoc,
-                                           SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPPriorityClause(Expr *Priority,
+                                                 SourceLocation StartLoc,
+                                                 SourceLocation LParenLoc,
+                                                 SourceLocation EndLoc) {
   Expr *ValExpr = Priority;
   Stmt *HelperValStmt = nullptr;
   OpenMPDirectiveKind CaptureRegion = OMPD_unknown;
@@ -23057,20 +23156,20 @@ OMPClause *Sema::ActOnOpenMPPriorityClause(Expr *Priority,
   // OpenMP [2.9.1, task Constrcut]
   // The priority-value is a non-negative numerical scalar expression.
   if (!isNonNegativeIntegerValue(
-          ValExpr, *this, OMPC_priority,
+          ValExpr, SemaRef, OMPC_priority,
           /*StrictlyPositive=*/false, /*BuildCapture=*/true,
           DSAStack->getCurrentDirective(), &CaptureRegion, &HelperValStmt))
     return nullptr;
 
-  return new (Context) OMPPriorityClause(ValExpr, HelperValStmt, CaptureRegion,
-                                         StartLoc, LParenLoc, EndLoc);
+  return new (getASTContext()) OMPPriorityClause(
+      ValExpr, HelperValStmt, CaptureRegion, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPGrainsizeClause(
+OMPClause *SemaOpenMP::ActOnOpenMPGrainsizeClause(
     OpenMPGrainsizeClauseModifier Modifier, Expr *Grainsize,
     SourceLocation StartLoc, SourceLocation LParenLoc,
     SourceLocation ModifierLoc, SourceLocation EndLoc) {
-  assert((ModifierLoc.isInvalid() || LangOpts.OpenMP >= 51) &&
+  assert((ModifierLoc.isInvalid() || getLangOpts().OpenMP >= 51) &&
          "Unexpected grainsize modifier in OpenMP < 51.");
 
   if (ModifierLoc.isValid() && Modifier == OMPC_GRAINSIZE_unknown) {
@@ -23088,23 +23187,23 @@ OMPClause *Sema::ActOnOpenMPGrainsizeClause(
   // OpenMP [2.9.2, taskloop Constrcut]
   // The parameter of the grainsize clause must be a positive integer
   // expression.
-  if (!isNonNegativeIntegerValue(ValExpr, *this, OMPC_grainsize,
+  if (!isNonNegativeIntegerValue(ValExpr, SemaRef, OMPC_grainsize,
                                  /*StrictlyPositive=*/true,
                                  /*BuildCapture=*/true,
                                  DSAStack->getCurrentDirective(),
                                  &CaptureRegion, &HelperValStmt))
     return nullptr;
 
-  return new (Context)
+  return new (getASTContext())
       OMPGrainsizeClause(Modifier, ValExpr, HelperValStmt, CaptureRegion,
                          StartLoc, LParenLoc, ModifierLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPNumTasksClause(
+OMPClause *SemaOpenMP::ActOnOpenMPNumTasksClause(
     OpenMPNumTasksClauseModifier Modifier, Expr *NumTasks,
     SourceLocation StartLoc, SourceLocation LParenLoc,
     SourceLocation ModifierLoc, SourceLocation EndLoc) {
-  assert((ModifierLoc.isInvalid() || LangOpts.OpenMP >= 51) &&
+  assert((ModifierLoc.isInvalid() || getLangOpts().OpenMP >= 51) &&
          "Unexpected num_tasks modifier in OpenMP < 51.");
 
   if (ModifierLoc.isValid() && Modifier == OMPC_NUMTASKS_unknown) {
@@ -23123,19 +23222,20 @@ OMPClause *Sema::ActOnOpenMPNumTasksClause(
   // The parameter of the num_tasks clause must be a positive integer
   // expression.
   if (!isNonNegativeIntegerValue(
-          ValExpr, *this, OMPC_num_tasks,
+          ValExpr, SemaRef, OMPC_num_tasks,
           /*StrictlyPositive=*/true, /*BuildCapture=*/true,
           DSAStack->getCurrentDirective(), &CaptureRegion, &HelperValStmt))
     return nullptr;
 
-  return new (Context)
+  return new (getASTContext())
       OMPNumTasksClause(Modifier, ValExpr, HelperValStmt, CaptureRegion,
                         StartLoc, LParenLoc, ModifierLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPHintClause(Expr *Hint, SourceLocation StartLoc,
-                                       SourceLocation LParenLoc,
-                                       SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPHintClause(Expr *Hint,
+                                             SourceLocation StartLoc,
+                                             SourceLocation LParenLoc,
+                                             SourceLocation EndLoc) {
   // OpenMP [2.13.2, critical construct, Description]
   // ... where hint-expression is an integer constant expression that evaluates
   // to a valid lock hint.
@@ -23143,7 +23243,7 @@ OMPClause *Sema::ActOnOpenMPHintClause(Expr *Hint, SourceLocation StartLoc,
       VerifyPositiveIntegerConstantInClause(Hint, OMPC_hint, false);
   if (HintExpr.isInvalid())
     return nullptr;
-  return new (Context)
+  return new (getASTContext())
       OMPHintClause(HintExpr.get(), StartLoc, LParenLoc, EndLoc);
 }
 
@@ -23163,13 +23263,14 @@ static bool findOMPEventHandleT(Sema &S, SourceLocation Loc,
   return true;
 }
 
-OMPClause *Sema::ActOnOpenMPDetachClause(Expr *Evt, SourceLocation StartLoc,
-                                         SourceLocation LParenLoc,
-                                         SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPDetachClause(Expr *Evt,
+                                               SourceLocation StartLoc,
+                                               SourceLocation LParenLoc,
+                                               SourceLocation EndLoc) {
   if (!Evt->isValueDependent() && !Evt->isTypeDependent() &&
       !Evt->isInstantiationDependent() &&
       !Evt->containsUnexpandedParameterPack()) {
-    if (!findOMPEventHandleT(*this, Evt->getExprLoc(), DSAStack))
+    if (!findOMPEventHandleT(SemaRef, Evt->getExprLoc(), DSAStack))
       return nullptr;
     // OpenMP 5.0, 2.10.1 task Construct.
     // event-handle is a variable of the omp_event_handle_t type.
@@ -23185,9 +23286,9 @@ OMPClause *Sema::ActOnOpenMPDetachClause(Expr *Evt, SourceLocation StartLoc,
           << "omp_event_handle_t" << 0 << Evt->getSourceRange();
       return nullptr;
     }
-    if (!Context.hasSameUnqualifiedType(DSAStack->getOMPEventHandleT(),
-                                        VD->getType()) ||
-        VD->getType().isConstant(Context)) {
+    if (!getASTContext().hasSameUnqualifiedType(DSAStack->getOMPEventHandleT(),
+                                                VD->getType()) ||
+        VD->getType().isConstant(getASTContext())) {
       Diag(Evt->getExprLoc(), diag::err_omp_var_expected)
           << "omp_event_handle_t" << 1 << VD->getType()
           << Evt->getSourceRange();
@@ -23202,15 +23303,16 @@ OMPClause *Sema::ActOnOpenMPDetachClause(Expr *Evt, SourceLocation StartLoc,
       Diag(Evt->getExprLoc(), diag::err_omp_wrong_dsa)
           << getOpenMPClauseName(DVar.CKind)
           << getOpenMPClauseName(OMPC_firstprivate);
-      reportOriginalDsa(*this, DSAStack, VD, DVar);
+      reportOriginalDsa(SemaRef, DSAStack, VD, DVar);
       return nullptr;
     }
   }
 
-  return new (Context) OMPDetachClause(Evt, StartLoc, LParenLoc, EndLoc);
+  return new (getASTContext())
+      OMPDetachClause(Evt, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPDistScheduleClause(
+OMPClause *SemaOpenMP::ActOnOpenMPDistScheduleClause(
     OpenMPDistScheduleClauseKind Kind, Expr *ChunkSize, SourceLocation StartLoc,
     SourceLocation LParenLoc, SourceLocation KindLoc, SourceLocation CommaLoc,
     SourceLocation EndLoc) {
@@ -23241,7 +23343,7 @@ OMPClause *Sema::ActOnOpenMPDistScheduleClause(
       //  chunk_size must be a loop invariant integer expression with a positive
       //  value.
       if (std::optional<llvm::APSInt> Result =
-              ValExpr->getIntegerConstantExpr(Context)) {
+              ValExpr->getIntegerConstantExpr(getASTContext())) {
         if (Result->isSigned() && !Result->isStrictlyPositive()) {
           Diag(ChunkSizeLoc, diag::err_omp_negative_expression_in_clause)
               << "dist_schedule" << ChunkSize->getSourceRange();
@@ -23249,22 +23351,22 @@ OMPClause *Sema::ActOnOpenMPDistScheduleClause(
         }
       } else if (getOpenMPCaptureRegionForClause(
                      DSAStack->getCurrentDirective(), OMPC_dist_schedule,
-                     LangOpts.OpenMP) != OMPD_unknown &&
-                 !CurContext->isDependentContext()) {
-        ValExpr = MakeFullExpr(ValExpr).get();
+                     getLangOpts().OpenMP) != OMPD_unknown &&
+                 !SemaRef.CurContext->isDependentContext()) {
+        ValExpr = SemaRef.MakeFullExpr(ValExpr).get();
         llvm::MapVector<const Expr *, DeclRefExpr *> Captures;
-        ValExpr = tryBuildCapture(*this, ValExpr, Captures).get();
-        HelperValStmt = buildPreInits(Context, Captures);
+        ValExpr = tryBuildCapture(SemaRef, ValExpr, Captures).get();
+        HelperValStmt = buildPreInits(getASTContext(), Captures);
       }
     }
   }
 
-  return new (Context)
+  return new (getASTContext())
       OMPDistScheduleClause(StartLoc, LParenLoc, KindLoc, CommaLoc, EndLoc,
                             Kind, ValExpr, HelperValStmt);
 }
 
-OMPClause *Sema::ActOnOpenMPDefaultmapClause(
+OMPClause *SemaOpenMP::ActOnOpenMPDefaultmapClause(
     OpenMPDefaultmapClauseModifier M, OpenMPDefaultmapClauseKind Kind,
     SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation MLoc,
     SourceLocation KindLoc, SourceLocation EndLoc) {
@@ -23291,10 +23393,10 @@ OMPClause *Sema::ActOnOpenMPDefaultmapClause(
   } else {
     bool isDefaultmapModifier = (M != OMPC_DEFAULTMAP_MODIFIER_unknown);
     bool isDefaultmapKind = (Kind != OMPC_DEFAULTMAP_unknown) ||
-                            (LangOpts.OpenMP >= 50 && KindLoc.isInvalid());
+                            (getLangOpts().OpenMP >= 50 && KindLoc.isInvalid());
     if (!isDefaultmapKind || !isDefaultmapModifier) {
       StringRef KindValue = "'scalar', 'aggregate', 'pointer'";
-      if (LangOpts.OpenMP == 50) {
+      if (getLangOpts().OpenMP == 50) {
         StringRef ModifierValue = "'alloc', 'from', 'to', 'tofrom', "
                                   "'firstprivate', 'none', 'default'";
         if (!isDefaultmapKind && isDefaultmapModifier) {
@@ -23346,13 +23448,13 @@ OMPClause *Sema::ActOnOpenMPDefaultmapClause(
     DSAStack->setDefaultDMAAttr(M, Kind, StartLoc);
   }
 
-  return new (Context)
+  return new (getASTContext())
       OMPDefaultmapClause(StartLoc, LParenLoc, MLoc, KindLoc, EndLoc, Kind, M);
 }
 
-bool Sema::ActOnStartOpenMPDeclareTargetContext(
+bool SemaOpenMP::ActOnStartOpenMPDeclareTargetContext(
     DeclareTargetContextInfo &DTCI) {
-  DeclContext *CurLexicalContext = getCurLexicalContext();
+  DeclContext *CurLexicalContext = SemaRef.getCurLexicalContext();
   if (!CurLexicalContext->isFileContext() &&
       !CurLexicalContext->isExternCContext() &&
       !CurLexicalContext->isExternCXXContext() &&
@@ -23372,20 +23474,20 @@ bool Sema::ActOnStartOpenMPDeclareTargetContext(
   return true;
 }
 
-const Sema::DeclareTargetContextInfo
-Sema::ActOnOpenMPEndDeclareTargetDirective() {
+const SemaOpenMP::DeclareTargetContextInfo
+SemaOpenMP::ActOnOpenMPEndDeclareTargetDirective() {
   assert(!DeclareTargetNesting.empty() &&
          "check isInOpenMPDeclareTargetContext() first!");
   return DeclareTargetNesting.pop_back_val();
 }
 
-void Sema::ActOnFinishedOpenMPDeclareTargetContext(
+void SemaOpenMP::ActOnFinishedOpenMPDeclareTargetContext(
     DeclareTargetContextInfo &DTCI) {
   for (auto &It : DTCI.ExplicitlyMapped)
     ActOnOpenMPDeclareTargetName(It.first, It.second.Loc, It.second.MT, DTCI);
 }
 
-void Sema::DiagnoseUnterminatedOpenMPDeclareTarget() {
+void SemaOpenMP::DiagnoseUnterminatedOpenMPDeclareTarget() {
   if (DeclareTargetNesting.empty())
     return;
   DeclareTargetContextInfo &DTCI = DeclareTargetNesting.back();
@@ -23393,23 +23495,23 @@ void Sema::DiagnoseUnterminatedOpenMPDeclareTarget() {
       << getOpenMPDirectiveName(DTCI.Kind);
 }
 
-NamedDecl *Sema::lookupOpenMPDeclareTargetName(Scope *CurScope,
-                                               CXXScopeSpec &ScopeSpec,
-                                               const DeclarationNameInfo &Id) {
-  LookupResult Lookup(*this, Id, LookupOrdinaryName);
-  LookupParsedName(Lookup, CurScope, &ScopeSpec, true);
+NamedDecl *SemaOpenMP::lookupOpenMPDeclareTargetName(
+    Scope *CurScope, CXXScopeSpec &ScopeSpec, const DeclarationNameInfo &Id) {
+  LookupResult Lookup(SemaRef, Id, Sema::LookupOrdinaryName);
+  SemaRef.LookupParsedName(Lookup, CurScope, &ScopeSpec, true);
 
   if (Lookup.isAmbiguous())
     return nullptr;
   Lookup.suppressDiagnostics();
 
   if (!Lookup.isSingleResult()) {
-    VarOrFuncDeclFilterCCC CCC(*this);
+    VarOrFuncDeclFilterCCC CCC(SemaRef);
     if (TypoCorrection Corrected =
-            CorrectTypo(Id, LookupOrdinaryName, CurScope, nullptr, CCC,
-                        CTK_ErrorRecovery)) {
-      diagnoseTypo(Corrected, PDiag(diag::err_undeclared_var_use_suggest)
-                                  << Id.getName());
+            SemaRef.CorrectTypo(Id, Sema::LookupOrdinaryName, CurScope, nullptr,
+                                CCC, Sema::CTK_ErrorRecovery)) {
+      SemaRef.diagnoseTypo(Corrected,
+                           SemaRef.PDiag(diag::err_undeclared_var_use_suggest)
+                               << Id.getName());
       checkDeclIsAllowedInOpenMPTarget(nullptr, Corrected.getCorrectionDecl());
       return nullptr;
     }
@@ -23427,9 +23529,9 @@ NamedDecl *Sema::lookupOpenMPDeclareTargetName(Scope *CurScope,
   return ND;
 }
 
-void Sema::ActOnOpenMPDeclareTargetName(NamedDecl *ND, SourceLocation Loc,
-                                        OMPDeclareTargetDeclAttr::MapTypeTy MT,
-                                        DeclareTargetContextInfo &DTCI) {
+void SemaOpenMP::ActOnOpenMPDeclareTargetName(
+    NamedDecl *ND, SourceLocation Loc, OMPDeclareTargetDeclAttr::MapTypeTy MT,
+    DeclareTargetContextInfo &DTCI) {
   assert((isa<VarDecl>(ND) || isa<FunctionDecl>(ND) ||
           isa<FunctionTemplateDecl>(ND)) &&
          "Expected variable, function or function template.");
@@ -23445,7 +23547,7 @@ void Sema::ActOnOpenMPDeclareTargetName(NamedDecl *ND, SourceLocation Loc,
   }
   // Diagnose marking after use as it may lead to incorrect diagnosis and
   // codegen.
-  if (LangOpts.OpenMP >= 50 &&
+  if (getLangOpts().OpenMP >= 50 &&
       (ND->isUsed(/*CheckUsedAttr=*/false) || ND->isReferenced()))
     Diag(Loc, diag::warn_omp_declare_target_after_first_use);
 
@@ -23484,14 +23586,14 @@ void Sema::ActOnOpenMPDeclareTargetName(NamedDecl *ND, SourceLocation Loc,
       IsIndirect = true;
   }
   auto *A = OMPDeclareTargetDeclAttr::CreateImplicit(
-      Context, MT, DTCI.DT, IndirectE, IsIndirect, Level,
+      getASTContext(), MT, DTCI.DT, IndirectE, IsIndirect, Level,
       SourceRange(Loc, Loc));
   ND->addAttr(A);
-  if (ASTMutationListener *ML = Context.getASTMutationListener())
+  if (ASTMutationListener *ML = getASTContext().getASTMutationListener())
     ML->DeclarationMarkedOpenMPDeclareTarget(ND, A);
   checkDeclIsAllowedInOpenMPTarget(nullptr, ND, Loc);
   if (auto *VD = dyn_cast<VarDecl>(ND);
-      LangOpts.OpenMP && VD && VD->hasAttr<OMPDeclareTargetDeclAttr>() &&
+      getLangOpts().OpenMP && VD && VD->hasAttr<OMPDeclareTargetDeclAttr>() &&
       VD->hasGlobalStorage())
     ActOnOpenMPDeclareTargetInitializer(ND);
 }
@@ -23535,8 +23637,8 @@ static bool checkValueDeclInTarget(SourceLocation SL, SourceRange SR,
                            /*FullCheck=*/false);
 }
 
-void Sema::checkDeclIsAllowedInOpenMPTarget(Expr *E, Decl *D,
-                                            SourceLocation IdLoc) {
+void SemaOpenMP::checkDeclIsAllowedInOpenMPTarget(Expr *E, Decl *D,
+                                                  SourceLocation IdLoc) {
   if (!D || D->isInvalidDecl())
     return;
   SourceRange SR = E ? E->getSourceRange() : D->getSourceRange();
@@ -23550,7 +23652,7 @@ void Sema::checkDeclIsAllowedInOpenMPTarget(Expr *E, Decl *D,
     // directive.
     if (DSAStack->isThreadPrivate(VD)) {
       Diag(SL, diag::err_omp_threadprivate_in_target);
-      reportOriginalDsa(*this, DSAStack, VD, DSAStack->getTopDSA(VD, false));
+      reportOriginalDsa(SemaRef, DSAStack, VD, DSAStack->getTopDSA(VD, false));
       return;
     }
   }
@@ -23569,7 +23671,7 @@ void Sema::checkDeclIsAllowedInOpenMPTarget(Expr *E, Decl *D,
     // Problem if any with var declared with incomplete type will be reported
     // as normal, so no need to check it here.
     if ((E || !VD->getType()->isIncompleteType()) &&
-        !checkValueDeclInTarget(SL, SR, *this, DSAStack, VD))
+        !checkValueDeclInTarget(SL, SR, SemaRef, DSAStack, VD))
       return;
     if (!E && isInOpenMPDeclareTargetContext()) {
       // Checking declaration inside declare target region.
@@ -23589,13 +23691,13 @@ void Sema::checkDeclIsAllowedInOpenMPTarget(Expr *E, Decl *D,
             IsIndirect = true;
         }
         auto *A = OMPDeclareTargetDeclAttr::CreateImplicit(
-            Context,
+            getASTContext(),
             getLangOpts().OpenMP >= 52 ? OMPDeclareTargetDeclAttr::MT_Enter
                                        : OMPDeclareTargetDeclAttr::MT_To,
             DTCI.DT, IndirectE, IsIndirect, Level,
             SourceRange(DTCI.Loc, DTCI.Loc));
         D->addAttr(A);
-        if (ASTMutationListener *ML = Context.getASTMutationListener())
+        if (ASTMutationListener *ML = getASTContext().getASTMutationListener())
           ML->DeclarationMarkedOpenMPDeclareTarget(D, A);
       }
       return;
@@ -23603,7 +23705,7 @@ void Sema::checkDeclIsAllowedInOpenMPTarget(Expr *E, Decl *D,
   }
   if (!E)
     return;
-  checkDeclInTargetContext(E->getExprLoc(), E->getSourceRange(), *this, D);
+  checkDeclInTargetContext(E->getExprLoc(), E->getSourceRange(), SemaRef, D);
 }
 
 /// This class visits every VarDecl that the initializer references and adds
@@ -23649,13 +23751,13 @@ public:
 /// Adding OMPDeclareTargetDeclAttr to variables with static storage
 /// duration that are referenced in the initializer expression list of
 /// variables with static storage duration in declare target directive.
-void Sema::ActOnOpenMPDeclareTargetInitializer(Decl *TargetDecl) {
+void SemaOpenMP::ActOnOpenMPDeclareTargetInitializer(Decl *TargetDecl) {
   GlobalDeclRefChecker Checker;
   if (isa<VarDecl>(TargetDecl))
     Checker.declareTargetInitializer(TargetDecl);
 }
 
-OMPClause *Sema::ActOnOpenMPToClause(
+OMPClause *SemaOpenMP::ActOnOpenMPToClause(
     ArrayRef<OpenMPMotionModifierKind> MotionModifiers,
     ArrayRef<SourceLocation> MotionModifiersLoc,
     CXXScopeSpec &MapperIdScopeSpec, DeclarationNameInfo &MapperId,
@@ -23681,18 +23783,18 @@ OMPClause *Sema::ActOnOpenMPToClause(
   }
 
   MappableVarListInfo MVLI(VarList);
-  checkMappableExpressionList(*this, DSAStack, OMPC_to, MVLI, Locs.StartLoc,
+  checkMappableExpressionList(SemaRef, DSAStack, OMPC_to, MVLI, Locs.StartLoc,
                               MapperIdScopeSpec, MapperId, UnresolvedMappers);
   if (MVLI.ProcessedVarList.empty())
     return nullptr;
 
   return OMPToClause::Create(
-      Context, Locs, MVLI.ProcessedVarList, MVLI.VarBaseDeclarations,
+      getASTContext(), Locs, MVLI.ProcessedVarList, MVLI.VarBaseDeclarations,
       MVLI.VarComponents, MVLI.UDMapperList, Modifiers, ModifiersLoc,
-      MapperIdScopeSpec.getWithLocInContext(Context), MapperId);
+      MapperIdScopeSpec.getWithLocInContext(getASTContext()), MapperId);
 }
 
-OMPClause *Sema::ActOnOpenMPFromClause(
+OMPClause *SemaOpenMP::ActOnOpenMPFromClause(
     ArrayRef<OpenMPMotionModifierKind> MotionModifiers,
     ArrayRef<SourceLocation> MotionModifiersLoc,
     CXXScopeSpec &MapperIdScopeSpec, DeclarationNameInfo &MapperId,
@@ -23718,19 +23820,20 @@ OMPClause *Sema::ActOnOpenMPFromClause(
   }
 
   MappableVarListInfo MVLI(VarList);
-  checkMappableExpressionList(*this, DSAStack, OMPC_from, MVLI, Locs.StartLoc,
+  checkMappableExpressionList(SemaRef, DSAStack, OMPC_from, MVLI, Locs.StartLoc,
                               MapperIdScopeSpec, MapperId, UnresolvedMappers);
   if (MVLI.ProcessedVarList.empty())
     return nullptr;
 
   return OMPFromClause::Create(
-      Context, Locs, MVLI.ProcessedVarList, MVLI.VarBaseDeclarations,
+      getASTContext(), Locs, MVLI.ProcessedVarList, MVLI.VarBaseDeclarations,
       MVLI.VarComponents, MVLI.UDMapperList, Modifiers, ModifiersLoc,
-      MapperIdScopeSpec.getWithLocInContext(Context), MapperId);
+      MapperIdScopeSpec.getWithLocInContext(getASTContext()), MapperId);
 }
 
-OMPClause *Sema::ActOnOpenMPUseDevicePtrClause(ArrayRef<Expr *> VarList,
-                                               const OMPVarListLocTy &Locs) {
+OMPClause *
+SemaOpenMP::ActOnOpenMPUseDevicePtrClause(ArrayRef<Expr *> VarList,
+                                          const OMPVarListLocTy &Locs) {
   MappableVarListInfo MVLI(VarList);
   SmallVector<Expr *, 8> PrivateCopies;
   SmallVector<Expr *, 8> Inits;
@@ -23740,7 +23843,7 @@ OMPClause *Sema::ActOnOpenMPUseDevicePtrClause(ArrayRef<Expr *> VarList,
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange);
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange);
     if (Res.second) {
       // It will be analyzed later.
       MVLI.ProcessedVarList.push_back(RefExpr);
@@ -23765,30 +23868,30 @@ OMPClause *Sema::ActOnOpenMPUseDevicePtrClause(ArrayRef<Expr *> VarList,
 
     // Build the private variable and the expression that refers to it.
     auto VDPrivate =
-        buildVarDecl(*this, ELoc, Type, D->getName(),
+        buildVarDecl(SemaRef, ELoc, Type, D->getName(),
                      D->hasAttrs() ? &D->getAttrs() : nullptr,
                      VD ? cast<DeclRefExpr>(SimpleRefExpr) : nullptr);
     if (VDPrivate->isInvalidDecl())
       continue;
 
-    CurContext->addDecl(VDPrivate);
+    SemaRef.CurContext->addDecl(VDPrivate);
     DeclRefExpr *VDPrivateRefExpr = buildDeclRefExpr(
-        *this, VDPrivate, RefExpr->getType().getUnqualifiedType(), ELoc);
+        SemaRef, VDPrivate, RefExpr->getType().getUnqualifiedType(), ELoc);
 
     // Add temporary variable to initialize the private copy of the pointer.
     VarDecl *VDInit =
-        buildVarDecl(*this, RefExpr->getExprLoc(), Type, ".devptr.temp");
+        buildVarDecl(SemaRef, RefExpr->getExprLoc(), Type, ".devptr.temp");
     DeclRefExpr *VDInitRefExpr = buildDeclRefExpr(
-        *this, VDInit, RefExpr->getType(), RefExpr->getExprLoc());
-    AddInitializerToDecl(VDPrivate,
-                         DefaultLvalueConversion(VDInitRefExpr).get(),
-                         /*DirectInit=*/false);
+        SemaRef, VDInit, RefExpr->getType(), RefExpr->getExprLoc());
+    SemaRef.AddInitializerToDecl(
+        VDPrivate, SemaRef.DefaultLvalueConversion(VDInitRefExpr).get(),
+        /*DirectInit=*/false);
 
     // If required, build a capture to implement the privatization initialized
     // with the current list item value.
     DeclRefExpr *Ref = nullptr;
     if (!VD)
-      Ref = buildCapture(*this, D, SimpleRefExpr, /*WithInit=*/true);
+      Ref = buildCapture(SemaRef, D, SimpleRefExpr, /*WithInit=*/true);
     MVLI.ProcessedVarList.push_back(VD ? RefExpr->IgnoreParens() : Ref);
     PrivateCopies.push_back(VDPrivateRefExpr);
     Inits.push_back(VDInitRefExpr);
@@ -23810,12 +23913,13 @@ OMPClause *Sema::ActOnOpenMPUseDevicePtrClause(ArrayRef<Expr *> VarList,
     return nullptr;
 
   return OMPUseDevicePtrClause::Create(
-      Context, Locs, MVLI.ProcessedVarList, PrivateCopies, Inits,
+      getASTContext(), Locs, MVLI.ProcessedVarList, PrivateCopies, Inits,
       MVLI.VarBaseDeclarations, MVLI.VarComponents);
 }
 
-OMPClause *Sema::ActOnOpenMPUseDeviceAddrClause(ArrayRef<Expr *> VarList,
-                                                const OMPVarListLocTy &Locs) {
+OMPClause *
+SemaOpenMP::ActOnOpenMPUseDeviceAddrClause(ArrayRef<Expr *> VarList,
+                                           const OMPVarListLocTy &Locs) {
   MappableVarListInfo MVLI(VarList);
 
   for (Expr *RefExpr : VarList) {
@@ -23823,7 +23927,7 @@ OMPClause *Sema::ActOnOpenMPUseDeviceAddrClause(ArrayRef<Expr *> VarList,
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange,
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange,
                               /*AllowArraySection=*/true);
     if (Res.second) {
       // It will be analyzed later.
@@ -23838,7 +23942,7 @@ OMPClause *Sema::ActOnOpenMPUseDeviceAddrClause(ArrayRef<Expr *> VarList,
     // with the current list item value.
     DeclRefExpr *Ref = nullptr;
     if (!VD)
-      Ref = buildCapture(*this, D, SimpleRefExpr, /*WithInit=*/true);
+      Ref = buildCapture(SemaRef, D, SimpleRefExpr, /*WithInit=*/true);
     MVLI.ProcessedVarList.push_back(VD ? RefExpr->IgnoreParens() : Ref);
 
     // We need to add a data sharing attribute for this variable to make sure it
@@ -23853,7 +23957,8 @@ OMPClause *Sema::ActOnOpenMPUseDeviceAddrClause(ArrayRef<Expr *> VarList,
     Expr *Component = SimpleRefExpr;
     if (VD && (isa<OMPArraySectionExpr>(RefExpr->IgnoreParenImpCasts()) ||
                isa<ArraySubscriptExpr>(RefExpr->IgnoreParenImpCasts())))
-      Component = DefaultFunctionArrayLvalueConversion(SimpleRefExpr).get();
+      Component =
+          SemaRef.DefaultFunctionArrayLvalueConversion(SimpleRefExpr).get();
     MVLI.VarComponents.back().emplace_back(Component, D,
                                            /*IsNonContiguous=*/false);
   }
@@ -23861,20 +23966,21 @@ OMPClause *Sema::ActOnOpenMPUseDeviceAddrClause(ArrayRef<Expr *> VarList,
   if (MVLI.ProcessedVarList.empty())
     return nullptr;
 
-  return OMPUseDeviceAddrClause::Create(Context, Locs, MVLI.ProcessedVarList,
-                                        MVLI.VarBaseDeclarations,
-                                        MVLI.VarComponents);
+  return OMPUseDeviceAddrClause::Create(
+      getASTContext(), Locs, MVLI.ProcessedVarList, MVLI.VarBaseDeclarations,
+      MVLI.VarComponents);
 }
 
-OMPClause *Sema::ActOnOpenMPIsDevicePtrClause(ArrayRef<Expr *> VarList,
-                                              const OMPVarListLocTy &Locs) {
+OMPClause *
+SemaOpenMP::ActOnOpenMPIsDevicePtrClause(ArrayRef<Expr *> VarList,
+                                         const OMPVarListLocTy &Locs) {
   MappableVarListInfo MVLI(VarList);
   for (Expr *RefExpr : VarList) {
     assert(RefExpr && "NULL expr in OpenMP is_device_ptr clause.");
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange);
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange);
     if (Res.second) {
       // It will be analyzed later.
       MVLI.ProcessedVarList.push_back(RefExpr);
@@ -23900,7 +24006,7 @@ OMPClause *Sema::ActOnOpenMPIsDevicePtrClause(ArrayRef<Expr *> VarList,
           << getOpenMPClauseName(DVar.CKind)
           << getOpenMPClauseName(OMPC_is_device_ptr)
           << getOpenMPDirectiveName(DSAStack->getCurrentDirective());
-      reportOriginalDsa(*this, DSAStack, D, DVar);
+      reportOriginalDsa(SemaRef, DSAStack, D, DVar);
       continue;
     }
 
@@ -23944,20 +24050,21 @@ OMPClause *Sema::ActOnOpenMPIsDevicePtrClause(ArrayRef<Expr *> VarList,
   if (MVLI.ProcessedVarList.empty())
     return nullptr;
 
-  return OMPIsDevicePtrClause::Create(Context, Locs, MVLI.ProcessedVarList,
-                                      MVLI.VarBaseDeclarations,
-                                      MVLI.VarComponents);
+  return OMPIsDevicePtrClause::Create(
+      getASTContext(), Locs, MVLI.ProcessedVarList, MVLI.VarBaseDeclarations,
+      MVLI.VarComponents);
 }
 
-OMPClause *Sema::ActOnOpenMPHasDeviceAddrClause(ArrayRef<Expr *> VarList,
-                                                const OMPVarListLocTy &Locs) {
+OMPClause *
+SemaOpenMP::ActOnOpenMPHasDeviceAddrClause(ArrayRef<Expr *> VarList,
+                                           const OMPVarListLocTy &Locs) {
   MappableVarListInfo MVLI(VarList);
   for (Expr *RefExpr : VarList) {
     assert(RefExpr && "NULL expr in OpenMP has_device_addr clause.");
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange,
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange,
                               /*AllowArraySection=*/true);
     if (Res.second) {
       // It will be analyzed later.
@@ -23975,7 +24082,7 @@ OMPClause *Sema::ActOnOpenMPHasDeviceAddrClause(ArrayRef<Expr *> VarList,
           << getOpenMPClauseName(DVar.CKind)
           << getOpenMPClauseName(OMPC_has_device_addr)
           << getOpenMPDirectiveName(DSAStack->getCurrentDirective());
-      reportOriginalDsa(*this, DSAStack, D, DVar);
+      reportOriginalDsa(SemaRef, DSAStack, D, DVar);
       continue;
     }
 
@@ -24000,16 +24107,17 @@ OMPClause *Sema::ActOnOpenMPHasDeviceAddrClause(ArrayRef<Expr *> VarList,
     auto *VD = dyn_cast<VarDecl>(D);
     if (VD && (isa<OMPArraySectionExpr>(RefExpr->IgnoreParenImpCasts()) ||
                isa<ArraySubscriptExpr>(RefExpr->IgnoreParenImpCasts())))
-      Component = DefaultFunctionArrayLvalueConversion(SimpleRefExpr).get();
+      Component =
+          SemaRef.DefaultFunctionArrayLvalueConversion(SimpleRefExpr).get();
     OMPClauseMappableExprCommon::MappableComponent MC(
         Component, D, /*IsNonContiguous=*/false);
     DSAStack->addMappableExpressionComponents(
         D, MC, /*WhereFoundClauseKind=*/OMPC_has_device_addr);
 
     // Record the expression we've just processed.
-    if (!VD && !CurContext->isDependentContext()) {
+    if (!VD && !SemaRef.CurContext->isDependentContext()) {
       DeclRefExpr *Ref =
-          buildCapture(*this, D, SimpleRefExpr, /*WithInit=*/true);
+          buildCapture(SemaRef, D, SimpleRefExpr, /*WithInit=*/true);
       assert(Ref && "has_device_addr capture failed");
       MVLI.ProcessedVarList.push_back(Ref);
     } else
@@ -24030,27 +24138,27 @@ OMPClause *Sema::ActOnOpenMPHasDeviceAddrClause(ArrayRef<Expr *> VarList,
   if (MVLI.ProcessedVarList.empty())
     return nullptr;
 
-  return OMPHasDeviceAddrClause::Create(Context, Locs, MVLI.ProcessedVarList,
-                                        MVLI.VarBaseDeclarations,
-                                        MVLI.VarComponents);
+  return OMPHasDeviceAddrClause::Create(
+      getASTContext(), Locs, MVLI.ProcessedVarList, MVLI.VarBaseDeclarations,
+      MVLI.VarComponents);
 }
 
-OMPClause *Sema::ActOnOpenMPAllocateClause(
+OMPClause *SemaOpenMP::ActOnOpenMPAllocateClause(
     Expr *Allocator, ArrayRef<Expr *> VarList, SourceLocation StartLoc,
     SourceLocation ColonLoc, SourceLocation LParenLoc, SourceLocation EndLoc) {
   if (Allocator) {
     // OpenMP [2.11.4 allocate Clause, Description]
     // allocator is an expression of omp_allocator_handle_t type.
-    if (!findOMPAllocatorHandleT(*this, Allocator->getExprLoc(), DSAStack))
+    if (!findOMPAllocatorHandleT(SemaRef, Allocator->getExprLoc(), DSAStack))
       return nullptr;
 
-    ExprResult AllocatorRes = DefaultLvalueConversion(Allocator);
+    ExprResult AllocatorRes = SemaRef.DefaultLvalueConversion(Allocator);
     if (AllocatorRes.isInvalid())
       return nullptr;
-    AllocatorRes = PerformImplicitConversion(AllocatorRes.get(),
-                                             DSAStack->getOMPAllocatorHandleT(),
-                                             Sema::AA_Initializing,
-                                             /*AllowExplicit=*/true);
+    AllocatorRes = SemaRef.PerformImplicitConversion(
+        AllocatorRes.get(), DSAStack->getOMPAllocatorHandleT(),
+        Sema::AA_Initializing,
+        /*AllowExplicit=*/true);
     if (AllocatorRes.isInvalid())
       return nullptr;
     Allocator = AllocatorRes.get();
@@ -24060,9 +24168,9 @@ OMPClause *Sema::ActOnOpenMPAllocateClause(
     // target region must specify an allocator expression unless a requires
     // directive with the dynamic_allocators clause is present in the same
     // compilation unit.
-    if (LangOpts.OpenMPIsTargetDevice &&
+    if (getLangOpts().OpenMPIsTargetDevice &&
         !DSAStack->hasRequiresDeclWithClause<OMPDynamicAllocatorsClause>())
-      targetDiag(StartLoc, diag::err_expected_allocator_expression);
+      SemaRef.targetDiag(StartLoc, diag::err_expected_allocator_expression);
   }
   // Analyze and build list of variables.
   SmallVector<Expr *, 8> Vars;
@@ -24071,7 +24179,7 @@ OMPClause *Sema::ActOnOpenMPAllocateClause(
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange);
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange);
     if (Res.second) {
       // It will be analyzed later.
       Vars.push_back(RefExpr);
@@ -24082,9 +24190,9 @@ OMPClause *Sema::ActOnOpenMPAllocateClause(
 
     auto *VD = dyn_cast<VarDecl>(D);
     DeclRefExpr *Ref = nullptr;
-    if (!VD && !CurContext->isDependentContext())
-      Ref = buildCapture(*this, D, SimpleRefExpr, /*WithInit=*/false);
-    Vars.push_back((VD || CurContext->isDependentContext())
+    if (!VD && !SemaRef.CurContext->isDependentContext())
+      Ref = buildCapture(SemaRef, D, SimpleRefExpr, /*WithInit=*/false);
+    Vars.push_back((VD || SemaRef.CurContext->isDependentContext())
                        ? RefExpr->IgnoreParens()
                        : Ref);
   }
@@ -24094,21 +24202,21 @@ OMPClause *Sema::ActOnOpenMPAllocateClause(
 
   if (Allocator)
     DSAStack->addInnerAllocatorExpr(Allocator);
-  return OMPAllocateClause::Create(Context, StartLoc, LParenLoc, Allocator,
-                                   ColonLoc, EndLoc, Vars);
+  return OMPAllocateClause::Create(getASTContext(), StartLoc, LParenLoc,
+                                   Allocator, ColonLoc, EndLoc, Vars);
 }
 
-OMPClause *Sema::ActOnOpenMPNontemporalClause(ArrayRef<Expr *> VarList,
-                                              SourceLocation StartLoc,
-                                              SourceLocation LParenLoc,
-                                              SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPNontemporalClause(ArrayRef<Expr *> VarList,
+                                                    SourceLocation StartLoc,
+                                                    SourceLocation LParenLoc,
+                                                    SourceLocation EndLoc) {
   SmallVector<Expr *, 8> Vars;
   for (Expr *RefExpr : VarList) {
     assert(RefExpr && "NULL expr in OpenMP nontemporal clause.");
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange);
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange);
     if (Res.second)
       // It will be analyzed later.
       Vars.push_back(RefExpr);
@@ -24133,32 +24241,34 @@ OMPClause *Sema::ActOnOpenMPNontemporalClause(ArrayRef<Expr *> VarList,
   if (Vars.empty())
     return nullptr;
 
-  return OMPNontemporalClause::Create(Context, StartLoc, LParenLoc, EndLoc,
-                                      Vars);
+  return OMPNontemporalClause::Create(getASTContext(), StartLoc, LParenLoc,
+                                      EndLoc, Vars);
 }
 
-StmtResult Sema::ActOnOpenMPScopeDirective(ArrayRef<OMPClause *> Clauses,
-                                           Stmt *AStmt, SourceLocation StartLoc,
-                                           SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPScopeDirective(ArrayRef<OMPClause *> Clauses,
+                                                 Stmt *AStmt,
+                                                 SourceLocation StartLoc,
+                                                 SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
-  return OMPScopeDirective::Create(Context, StartLoc, EndLoc, Clauses, AStmt);
+  return OMPScopeDirective::Create(getASTContext(), StartLoc, EndLoc, Clauses,
+                                   AStmt);
 }
 
-OMPClause *Sema::ActOnOpenMPInclusiveClause(ArrayRef<Expr *> VarList,
-                                            SourceLocation StartLoc,
-                                            SourceLocation LParenLoc,
-                                            SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPInclusiveClause(ArrayRef<Expr *> VarList,
+                                                  SourceLocation StartLoc,
+                                                  SourceLocation LParenLoc,
+                                                  SourceLocation EndLoc) {
   SmallVector<Expr *, 8> Vars;
   for (Expr *RefExpr : VarList) {
     assert(RefExpr && "NULL expr in OpenMP nontemporal clause.");
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange,
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange,
                               /*AllowArraySection=*/true);
     if (Res.second)
       // It will be analyzed later.
@@ -24185,20 +24295,21 @@ OMPClause *Sema::ActOnOpenMPInclusiveClause(ArrayRef<Expr *> VarList,
   if (Vars.empty())
     return nullptr;
 
-  return OMPInclusiveClause::Create(Context, StartLoc, LParenLoc, EndLoc, Vars);
+  return OMPInclusiveClause::Create(getASTContext(), StartLoc, LParenLoc,
+                                    EndLoc, Vars);
 }
 
-OMPClause *Sema::ActOnOpenMPExclusiveClause(ArrayRef<Expr *> VarList,
-                                            SourceLocation StartLoc,
-                                            SourceLocation LParenLoc,
-                                            SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPExclusiveClause(ArrayRef<Expr *> VarList,
+                                                  SourceLocation StartLoc,
+                                                  SourceLocation LParenLoc,
+                                                  SourceLocation EndLoc) {
   SmallVector<Expr *, 8> Vars;
   for (Expr *RefExpr : VarList) {
     assert(RefExpr && "NULL expr in OpenMP nontemporal clause.");
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange,
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange,
                               /*AllowArraySection=*/true);
     if (Res.second)
       // It will be analyzed later.
@@ -24228,7 +24339,8 @@ OMPClause *Sema::ActOnOpenMPExclusiveClause(ArrayRef<Expr *> VarList,
   if (Vars.empty())
     return nullptr;
 
-  return OMPExclusiveClause::Create(Context, StartLoc, LParenLoc, EndLoc, Vars);
+  return OMPExclusiveClause::Create(getASTContext(), StartLoc, LParenLoc,
+                                    EndLoc, Vars);
 }
 
 /// Tries to find omp_alloctrait_t type.
@@ -24246,19 +24358,20 @@ static bool findOMPAlloctraitT(Sema &S, SourceLocation Loc, DSAStackTy *Stack) {
   return true;
 }
 
-OMPClause *Sema::ActOnOpenMPUsesAllocatorClause(
+OMPClause *SemaOpenMP::ActOnOpenMPUsesAllocatorClause(
     SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation EndLoc,
     ArrayRef<UsesAllocatorsData> Data) {
+  ASTContext &Context = getASTContext();
   // OpenMP [2.12.5, target Construct]
   // allocator is an identifier of omp_allocator_handle_t type.
-  if (!findOMPAllocatorHandleT(*this, StartLoc, DSAStack))
+  if (!findOMPAllocatorHandleT(SemaRef, StartLoc, DSAStack))
     return nullptr;
   // OpenMP [2.12.5, target Construct]
   // allocator-traits-array is an identifier of const omp_alloctrait_t * type.
   if (llvm::any_of(
           Data,
           [](const UsesAllocatorsData &D) { return D.AllocatorTraits; }) &&
-      !findOMPAlloctraitT(*this, StartLoc, DSAStack))
+      !findOMPAlloctraitT(SemaRef, StartLoc, DSAStack))
     return nullptr;
   llvm::SmallPtrSet<CanonicalDeclPtr<Decl>, 4> PredefinedAllocators;
   for (int I = 0; I < OMPAllocateDeclAttr::OMPUserDefinedMemAlloc; ++I) {
@@ -24266,8 +24379,8 @@ OMPClause *Sema::ActOnOpenMPUsesAllocatorClause(
     StringRef Allocator =
         OMPAllocateDeclAttr::ConvertAllocatorTypeTyToStr(AllocatorKind);
     DeclarationName AllocatorName = &Context.Idents.get(Allocator);
-    PredefinedAllocators.insert(LookupSingleName(
-        TUScope, AllocatorName, StartLoc, Sema::LookupAnyName));
+    PredefinedAllocators.insert(SemaRef.LookupSingleName(
+        SemaRef.TUScope, AllocatorName, StartLoc, Sema::LookupAnyName));
   }
 
   SmallVector<OMPUsesAllocatorsClause::Data, 4> NewData;
@@ -24284,7 +24397,7 @@ OMPClause *Sema::ActOnOpenMPUsesAllocatorClause(
       bool IsPredefinedAllocator = false;
       if (DRE) {
         OMPAllocateDeclAttr::AllocatorTypeTy AllocatorTy =
-            getAllocatorKind(*this, DSAStack, AllocatorExpr);
+            getAllocatorKind(SemaRef, DSAStack, AllocatorExpr);
         IsPredefinedAllocator =
             AllocatorTy !=
             OMPAllocateDeclAttr::AllocatorTypeTy::OMPUserDefinedMemAlloc;
@@ -24329,7 +24442,7 @@ OMPClause *Sema::ActOnOpenMPUsesAllocatorClause(
       }
       // No allocator traits - just convert it to rvalue.
       if (!D.AllocatorTraits)
-        AllocatorExpr = DefaultLvalueConversion(AllocatorExpr).get();
+        AllocatorExpr = SemaRef.DefaultLvalueConversion(AllocatorExpr).get();
       DSAStack->addUsesAllocatorsDecl(
           DRE->getDecl(),
           IsPredefinedAllocator
@@ -24376,11 +24489,11 @@ OMPClause *Sema::ActOnOpenMPUsesAllocatorClause(
     NewD.LParenLoc = D.LParenLoc;
     NewD.RParenLoc = D.RParenLoc;
   }
-  return OMPUsesAllocatorsClause::Create(Context, StartLoc, LParenLoc, EndLoc,
-                                         NewData);
+  return OMPUsesAllocatorsClause::Create(getASTContext(), StartLoc, LParenLoc,
+                                         EndLoc, NewData);
 }
 
-OMPClause *Sema::ActOnOpenMPAffinityClause(
+OMPClause *SemaOpenMP::ActOnOpenMPAffinityClause(
     SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation ColonLoc,
     SourceLocation EndLoc, Expr *Modifier, ArrayRef<Expr *> Locators) {
   SmallVector<Expr *, 8> Vars;
@@ -24403,8 +24516,8 @@ OMPClause *Sema::ActOnOpenMPAffinityClause(
 
     ExprResult Res;
     {
-      Sema::TentativeAnalysisScope Trap(*this);
-      Res = CreateBuiltinUnaryOp(ELoc, UO_AddrOf, SimpleExpr);
+      Sema::TentativeAnalysisScope Trap(SemaRef);
+      Res = SemaRef.CreateBuiltinUnaryOp(ELoc, UO_AddrOf, SimpleExpr);
     }
     if (!Res.isUsable() && !isa<OMPArraySectionExpr>(SimpleExpr) &&
         !isa<OMPArrayShapingExpr>(SimpleExpr)) {
@@ -24415,15 +24528,15 @@ OMPClause *Sema::ActOnOpenMPAffinityClause(
     Vars.push_back(SimpleExpr);
   }
 
-  return OMPAffinityClause::Create(Context, StartLoc, LParenLoc, ColonLoc,
-                                   EndLoc, Modifier, Vars);
+  return OMPAffinityClause::Create(getASTContext(), StartLoc, LParenLoc,
+                                   ColonLoc, EndLoc, Modifier, Vars);
 }
 
-OMPClause *Sema::ActOnOpenMPBindClause(OpenMPBindClauseKind Kind,
-                                       SourceLocation KindLoc,
-                                       SourceLocation StartLoc,
-                                       SourceLocation LParenLoc,
-                                       SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPBindClause(OpenMPBindClauseKind Kind,
+                                             SourceLocation KindLoc,
+                                             SourceLocation StartLoc,
+                                             SourceLocation LParenLoc,
+                                             SourceLocation EndLoc) {
   if (Kind == OMPC_BIND_unknown) {
     Diag(KindLoc, diag::err_omp_unexpected_clause_value)
         << getListOfPossibleValues(OMPC_bind, /*First=*/0,
@@ -24432,39 +24545,40 @@ OMPClause *Sema::ActOnOpenMPBindClause(OpenMPBindClauseKind Kind,
     return nullptr;
   }
 
-  return OMPBindClause::Create(Context, Kind, KindLoc, StartLoc, LParenLoc,
-                               EndLoc);
+  return OMPBindClause::Create(getASTContext(), Kind, KindLoc, StartLoc,
+                               LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPXDynCGroupMemClause(Expr *Size,
-                                                SourceLocation StartLoc,
-                                                SourceLocation LParenLoc,
-                                                SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPXDynCGroupMemClause(Expr *Size,
+                                                      SourceLocation StartLoc,
+                                                      SourceLocation LParenLoc,
+                                                      SourceLocation EndLoc) {
   Expr *ValExpr = Size;
   Stmt *HelperValStmt = nullptr;
 
   // OpenMP [2.5, Restrictions]
   //  The ompx_dyn_cgroup_mem expression must evaluate to a positive integer
   //  value.
-  if (!isNonNegativeIntegerValue(ValExpr, *this, OMPC_ompx_dyn_cgroup_mem,
+  if (!isNonNegativeIntegerValue(ValExpr, SemaRef, OMPC_ompx_dyn_cgroup_mem,
                                  /*StrictlyPositive=*/false))
     return nullptr;
 
   OpenMPDirectiveKind DKind = DSAStack->getCurrentDirective();
   OpenMPDirectiveKind CaptureRegion = getOpenMPCaptureRegionForClause(
-      DKind, OMPC_ompx_dyn_cgroup_mem, LangOpts.OpenMP);
-  if (CaptureRegion != OMPD_unknown && !CurContext->isDependentContext()) {
-    ValExpr = MakeFullExpr(ValExpr).get();
+      DKind, OMPC_ompx_dyn_cgroup_mem, getLangOpts().OpenMP);
+  if (CaptureRegion != OMPD_unknown &&
+      !SemaRef.CurContext->isDependentContext()) {
+    ValExpr = SemaRef.MakeFullExpr(ValExpr).get();
     llvm::MapVector<const Expr *, DeclRefExpr *> Captures;
-    ValExpr = tryBuildCapture(*this, ValExpr, Captures).get();
-    HelperValStmt = buildPreInits(Context, Captures);
+    ValExpr = tryBuildCapture(SemaRef, ValExpr, Captures).get();
+    HelperValStmt = buildPreInits(getASTContext(), Captures);
   }
 
-  return new (Context) OMPXDynCGroupMemClause(
+  return new (getASTContext()) OMPXDynCGroupMemClause(
       ValExpr, HelperValStmt, CaptureRegion, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPDoacrossClause(
+OMPClause *SemaOpenMP::ActOnOpenMPDoacrossClause(
     OpenMPDoacrossClauseModifier DepType, SourceLocation DepLoc,
     SourceLocation ColonLoc, ArrayRef<Expr *> VarList, SourceLocation StartLoc,
     SourceLocation LParenLoc, SourceLocation EndLoc) {
@@ -24483,7 +24597,7 @@ OMPClause *Sema::ActOnOpenMPDoacrossClause(
   DSAStackTy::OperatorOffsetTy OpsOffs;
   llvm::APSInt TotalDepCount(/*BitWidth=*/32);
   DoacrossDataInfoTy VarOffset = ProcessOpenMPDoacrossClauseCommon(
-      *this,
+      SemaRef,
       DepType == OMPC_DOACROSS_source ||
           DepType == OMPC_DOACROSS_source_omp_cur_iteration ||
           DepType == OMPC_DOACROSS_sink_omp_cur_iteration,
@@ -24491,22 +24605,587 @@ OMPClause *Sema::ActOnOpenMPDoacrossClause(
   Vars = VarOffset.Vars;
   OpsOffs = VarOffset.OpsOffs;
   TotalDepCount = VarOffset.TotalDepCount;
-  auto *C = OMPDoacrossClause::Create(Context, StartLoc, LParenLoc, EndLoc,
-                                      DepType, DepLoc, ColonLoc, Vars,
+  auto *C = OMPDoacrossClause::Create(getASTContext(), StartLoc, LParenLoc,
+                                      EndLoc, DepType, DepLoc, ColonLoc, Vars,
                                       TotalDepCount.getZExtValue());
   if (DSAStack->isParentOrderedRegion())
     DSAStack->addDoacrossDependClause(C, OpsOffs);
   return C;
 }
 
-OMPClause *Sema::ActOnOpenMPXAttributeClause(ArrayRef<const Attr *> Attrs,
-                                             SourceLocation StartLoc,
-                                             SourceLocation LParenLoc,
-                                             SourceLocation EndLoc) {
-  return new (Context) OMPXAttributeClause(Attrs, StartLoc, LParenLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPXAttributeClause(ArrayRef<const Attr *> Attrs,
+                                                   SourceLocation StartLoc,
+                                                   SourceLocation LParenLoc,
+                                                   SourceLocation EndLoc) {
+  return new (getASTContext())
+      OMPXAttributeClause(Attrs, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPXBareClause(SourceLocation StartLoc,
-                                        SourceLocation EndLoc) {
-  return new (Context) OMPXBareClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPXBareClause(SourceLocation StartLoc,
+                                              SourceLocation EndLoc) {
+  return new (getASTContext()) OMPXBareClause(StartLoc, EndLoc);
+}
+
+ExprResult SemaOpenMP::ActOnOMPArraySectionExpr(
+    Expr *Base, SourceLocation LBLoc, Expr *LowerBound,
+    SourceLocation ColonLocFirst, SourceLocation ColonLocSecond, Expr *Length,
+    Expr *Stride, SourceLocation RBLoc) {
+  ASTContext &Context = getASTContext();
+  if (Base->hasPlaceholderType() &&
+      !Base->hasPlaceholderType(BuiltinType::OMPArraySection)) {
+    ExprResult Result = SemaRef.CheckPlaceholderExpr(Base);
+    if (Result.isInvalid())
+      return ExprError();
+    Base = Result.get();
+  }
+  if (LowerBound && LowerBound->getType()->isNonOverloadPlaceholderType()) {
+    ExprResult Result = SemaRef.CheckPlaceholderExpr(LowerBound);
+    if (Result.isInvalid())
+      return ExprError();
+    Result = SemaRef.DefaultLvalueConversion(Result.get());
+    if (Result.isInvalid())
+      return ExprError();
+    LowerBound = Result.get();
+  }
+  if (Length && Length->getType()->isNonOverloadPlaceholderType()) {
+    ExprResult Result = SemaRef.CheckPlaceholderExpr(Length);
+    if (Result.isInvalid())
+      return ExprError();
+    Result = SemaRef.DefaultLvalueConversion(Result.get());
+    if (Result.isInvalid())
+      return ExprError();
+    Length = Result.get();
+  }
+  if (Stride && Stride->getType()->isNonOverloadPlaceholderType()) {
+    ExprResult Result = SemaRef.CheckPlaceholderExpr(Stride);
+    if (Result.isInvalid())
+      return ExprError();
+    Result = SemaRef.DefaultLvalueConversion(Result.get());
+    if (Result.isInvalid())
+      return ExprError();
+    Stride = Result.get();
+  }
+
+  // Build an unanalyzed expression if either operand is type-dependent.
+  if (Base->isTypeDependent() ||
+      (LowerBound &&
+       (LowerBound->isTypeDependent() || LowerBound->isValueDependent())) ||
+      (Length && (Length->isTypeDependent() || Length->isValueDependent())) ||
+      (Stride && (Stride->isTypeDependent() || Stride->isValueDependent()))) {
+    return new (Context) OMPArraySectionExpr(
+        Base, LowerBound, Length, Stride, Context.DependentTy, VK_LValue,
+        OK_Ordinary, ColonLocFirst, ColonLocSecond, RBLoc);
+  }
+
+  // Perform default conversions.
+  QualType OriginalTy = OMPArraySectionExpr::getBaseOriginalType(Base);
+  QualType ResultTy;
+  if (OriginalTy->isAnyPointerType()) {
+    ResultTy = OriginalTy->getPointeeType();
+  } else if (OriginalTy->isArrayType()) {
+    ResultTy = OriginalTy->getAsArrayTypeUnsafe()->getElementType();
+  } else {
+    return ExprError(
+        Diag(Base->getExprLoc(), diag::err_omp_typecheck_section_value)
+        << Base->getSourceRange());
+  }
+  // C99 6.5.2.1p1
+  if (LowerBound) {
+    auto Res = PerformOpenMPImplicitIntegerConversion(LowerBound->getExprLoc(),
+                                                      LowerBound);
+    if (Res.isInvalid())
+      return ExprError(Diag(LowerBound->getExprLoc(),
+                            diag::err_omp_typecheck_section_not_integer)
+                       << 0 << LowerBound->getSourceRange());
+    LowerBound = Res.get();
+
+    if (LowerBound->getType()->isSpecificBuiltinType(BuiltinType::Char_S) ||
+        LowerBound->getType()->isSpecificBuiltinType(BuiltinType::Char_U))
+      Diag(LowerBound->getExprLoc(), diag::warn_omp_section_is_char)
+          << 0 << LowerBound->getSourceRange();
+  }
+  if (Length) {
+    auto Res =
+        PerformOpenMPImplicitIntegerConversion(Length->getExprLoc(), Length);
+    if (Res.isInvalid())
+      return ExprError(Diag(Length->getExprLoc(),
+                            diag::err_omp_typecheck_section_not_integer)
+                       << 1 << Length->getSourceRange());
+    Length = Res.get();
+
+    if (Length->getType()->isSpecificBuiltinType(BuiltinType::Char_S) ||
+        Length->getType()->isSpecificBuiltinType(BuiltinType::Char_U))
+      Diag(Length->getExprLoc(), diag::warn_omp_section_is_char)
+          << 1 << Length->getSourceRange();
+  }
+  if (Stride) {
+    ExprResult Res =
+        PerformOpenMPImplicitIntegerConversion(Stride->getExprLoc(), Stride);
+    if (Res.isInvalid())
+      return ExprError(Diag(Stride->getExprLoc(),
+                            diag::err_omp_typecheck_section_not_integer)
+                       << 1 << Stride->getSourceRange());
+    Stride = Res.get();
+
+    if (Stride->getType()->isSpecificBuiltinType(BuiltinType::Char_S) ||
+        Stride->getType()->isSpecificBuiltinType(BuiltinType::Char_U))
+      Diag(Stride->getExprLoc(), diag::warn_omp_section_is_char)
+          << 1 << Stride->getSourceRange();
+  }
+
+  // C99 6.5.2.1p1: "shall have type "pointer to *object* type". Similarly,
+  // C++ [expr.sub]p1: The type "T" shall be a completely-defined object
+  // type. Note that functions are not objects, and that (in C99 parlance)
+  // incomplete types are not object types.
+  if (ResultTy->isFunctionType()) {
+    Diag(Base->getExprLoc(), diag::err_omp_section_function_type)
+        << ResultTy << Base->getSourceRange();
+    return ExprError();
+  }
+
+  if (SemaRef.RequireCompleteType(Base->getExprLoc(), ResultTy,
+                                  diag::err_omp_section_incomplete_type, Base))
+    return ExprError();
+
+  if (LowerBound && !OriginalTy->isAnyPointerType()) {
+    Expr::EvalResult Result;
+    if (LowerBound->EvaluateAsInt(Result, Context)) {
+      // OpenMP 5.0, [2.1.5 Array Sections]
+      // The array section must be a subset of the original array.
+      llvm::APSInt LowerBoundValue = Result.Val.getInt();
+      if (LowerBoundValue.isNegative()) {
+        Diag(LowerBound->getExprLoc(),
+             diag::err_omp_section_not_subset_of_array)
+            << LowerBound->getSourceRange();
+        return ExprError();
+      }
+    }
+  }
+
+  if (Length) {
+    Expr::EvalResult Result;
+    if (Length->EvaluateAsInt(Result, Context)) {
+      // OpenMP 5.0, [2.1.5 Array Sections]
+      // The length must evaluate to non-negative integers.
+      llvm::APSInt LengthValue = Result.Val.getInt();
+      if (LengthValue.isNegative()) {
+        Diag(Length->getExprLoc(), diag::err_omp_section_length_negative)
+            << toString(LengthValue, /*Radix=*/10, /*Signed=*/true)
+            << Length->getSourceRange();
+        return ExprError();
+      }
+    }
+  } else if (ColonLocFirst.isValid() &&
+             (OriginalTy.isNull() || (!OriginalTy->isConstantArrayType() &&
+                                      !OriginalTy->isVariableArrayType()))) {
+    // OpenMP 5.0, [2.1.5 Array Sections]
+    // When the size of the array dimension is not known, the length must be
+    // specified explicitly.
+    Diag(ColonLocFirst, diag::err_omp_section_length_undefined)
+        << (!OriginalTy.isNull() && OriginalTy->isArrayType());
+    return ExprError();
+  }
+
+  if (Stride) {
+    Expr::EvalResult Result;
+    if (Stride->EvaluateAsInt(Result, Context)) {
+      // OpenMP 5.0, [2.1.5 Array Sections]
+      // The stride must evaluate to a positive integer.
+      llvm::APSInt StrideValue = Result.Val.getInt();
+      if (!StrideValue.isStrictlyPositive()) {
+        Diag(Stride->getExprLoc(), diag::err_omp_section_stride_non_positive)
+            << toString(StrideValue, /*Radix=*/10, /*Signed=*/true)
+            << Stride->getSourceRange();
+        return ExprError();
+      }
+    }
+  }
+
+  if (!Base->hasPlaceholderType(BuiltinType::OMPArraySection)) {
+    ExprResult Result = SemaRef.DefaultFunctionArrayLvalueConversion(Base);
+    if (Result.isInvalid())
+      return ExprError();
+    Base = Result.get();
+  }
+  return new (Context) OMPArraySectionExpr(
+      Base, LowerBound, Length, Stride, Context.OMPArraySectionTy, VK_LValue,
+      OK_Ordinary, ColonLocFirst, ColonLocSecond, RBLoc);
 }
+
+ExprResult SemaOpenMP::ActOnOMPArrayShapingExpr(
+    Expr *Base, SourceLocation LParenLoc, SourceLocation RParenLoc,
+    ArrayRef<Expr *> Dims, ArrayRef<SourceRange> Brackets) {
+  ASTContext &Context = getASTContext();
+  if (Base->hasPlaceholderType()) {
+    ExprResult Result = SemaRef.CheckPlaceholderExpr(Base);
+    if (Result.isInvalid())
+      return ExprError();
+    Result = SemaRef.DefaultLvalueConversion(Result.get());
+    if (Result.isInvalid())
+      return ExprError();
+    Base = Result.get();
+  }
+  QualType BaseTy = Base->getType();
+  // Delay analysis of the types/expressions if instantiation/specialization is
+  // required.
+  if (!BaseTy->isPointerType() && Base->isTypeDependent())
+    return OMPArrayShapingExpr::Create(Context, Context.DependentTy, Base,
+                                       LParenLoc, RParenLoc, Dims, Brackets);
+  if (!BaseTy->isPointerType() ||
+      (!Base->isTypeDependent() &&
+       BaseTy->getPointeeType()->isIncompleteType()))
+    return ExprError(Diag(Base->getExprLoc(),
+                          diag::err_omp_non_pointer_type_array_shaping_base)
+                     << Base->getSourceRange());
+
+  SmallVector<Expr *, 4> NewDims;
+  bool ErrorFound = false;
+  for (Expr *Dim : Dims) {
+    if (Dim->hasPlaceholderType()) {
+      ExprResult Result = SemaRef.CheckPlaceholderExpr(Dim);
+      if (Result.isInvalid()) {
+        ErrorFound = true;
+        continue;
+      }
+      Result = SemaRef.DefaultLvalueConversion(Result.get());
+      if (Result.isInvalid()) {
+        ErrorFound = true;
+        continue;
+      }
+      Dim = Result.get();
+    }
+    if (!Dim->isTypeDependent()) {
+      ExprResult Result =
+          PerformOpenMPImplicitIntegerConversion(Dim->getExprLoc(), Dim);
+      if (Result.isInvalid()) {
+        ErrorFound = true;
+        Diag(Dim->getExprLoc(), diag::err_omp_typecheck_shaping_not_integer)
+            << Dim->getSourceRange();
+        continue;
+      }
+      Dim = Result.get();
+      Expr::EvalResult EvResult;
+      if (!Dim->isValueDependent() && Dim->EvaluateAsInt(EvResult, Context)) {
+        // OpenMP 5.0, [2.1.4 Array Shaping]
+        // Each si is an integral type expression that must evaluate to a
+        // positive integer.
+        llvm::APSInt Value = EvResult.Val.getInt();
+        if (!Value.isStrictlyPositive()) {
+          Diag(Dim->getExprLoc(), diag::err_omp_shaping_dimension_not_positive)
+              << toString(Value, /*Radix=*/10, /*Signed=*/true)
+              << Dim->getSourceRange();
+          ErrorFound = true;
+          continue;
+        }
+      }
+    }
+    NewDims.push_back(Dim);
+  }
+  if (ErrorFound)
+    return ExprError();
+  return OMPArrayShapingExpr::Create(Context, Context.OMPArrayShapingTy, Base,
+                                     LParenLoc, RParenLoc, NewDims, Brackets);
+}
+
+ExprResult SemaOpenMP::ActOnOMPIteratorExpr(Scope *S,
+                                            SourceLocation IteratorKwLoc,
+                                            SourceLocation LLoc,
+                                            SourceLocation RLoc,
+                                            ArrayRef<OMPIteratorData> Data) {
+  ASTContext &Context = getASTContext();
+  SmallVector<OMPIteratorExpr::IteratorDefinition, 4> ID;
+  bool IsCorrect = true;
+  for (const OMPIteratorData &D : Data) {
+    TypeSourceInfo *TInfo = nullptr;
+    SourceLocation StartLoc;
+    QualType DeclTy;
+    if (!D.Type.getAsOpaquePtr()) {
+      // OpenMP 5.0, 2.1.6 Iterators
+      // In an iterator-specifier, if the iterator-type is not specified then
+      // the type of that iterator is of int type.
+      DeclTy = Context.IntTy;
+      StartLoc = D.DeclIdentLoc;
+    } else {
+      DeclTy = Sema::GetTypeFromParser(D.Type, &TInfo);
+      StartLoc = TInfo->getTypeLoc().getBeginLoc();
+    }
+
+    bool IsDeclTyDependent = DeclTy->isDependentType() ||
+                             DeclTy->containsUnexpandedParameterPack() ||
+                             DeclTy->isInstantiationDependentType();
+    if (!IsDeclTyDependent) {
+      if (!DeclTy->isIntegralType(Context) && !DeclTy->isAnyPointerType()) {
+        // OpenMP 5.0, 2.1.6 Iterators, Restrictions, C/C++
+        // The iterator-type must be an integral or pointer type.
+        Diag(StartLoc, diag::err_omp_iterator_not_integral_or_pointer)
+            << DeclTy;
+        IsCorrect = false;
+        continue;
+      }
+      if (DeclTy.isConstant(Context)) {
+        // OpenMP 5.0, 2.1.6 Iterators, Restrictions, C/C++
+        // The iterator-type must not be const qualified.
+        Diag(StartLoc, diag::err_omp_iterator_not_integral_or_pointer)
+            << DeclTy;
+        IsCorrect = false;
+        continue;
+      }
+    }
+
+    // Iterator declaration.
+    assert(D.DeclIdent && "Identifier expected.");
+    // Always try to create iterator declarator to avoid extra error messages
+    // about unknown declarations use.
+    auto *VD =
+        VarDecl::Create(Context, SemaRef.CurContext, StartLoc, D.DeclIdentLoc,
+                        D.DeclIdent, DeclTy, TInfo, SC_None);
+    VD->setImplicit();
+    if (S) {
+      // Check for conflicting previous declaration.
+      DeclarationNameInfo NameInfo(VD->getDeclName(), D.DeclIdentLoc);
+      LookupResult Previous(SemaRef, NameInfo, Sema::LookupOrdinaryName,
+                            Sema::ForVisibleRedeclaration);
+      Previous.suppressDiagnostics();
+      SemaRef.LookupName(Previous, S);
+
+      SemaRef.FilterLookupForScope(Previous, SemaRef.CurContext, S,
+                                   /*ConsiderLinkage=*/false,
+                                   /*AllowInlineNamespace=*/false);
+      if (!Previous.empty()) {
+        NamedDecl *Old = Previous.getRepresentativeDecl();
+        Diag(D.DeclIdentLoc, diag::err_redefinition) << VD->getDeclName();
+        Diag(Old->getLocation(), diag::note_previous_definition);
+      } else {
+        SemaRef.PushOnScopeChains(VD, S);
+      }
+    } else {
+      SemaRef.CurContext->addDecl(VD);
+    }
+
+    /// Act on the iterator variable declaration.
+    ActOnOpenMPIteratorVarDecl(VD);
+
+    Expr *Begin = D.Range.Begin;
+    if (!IsDeclTyDependent && Begin && !Begin->isTypeDependent()) {
+      ExprResult BeginRes =
+          SemaRef.PerformImplicitConversion(Begin, DeclTy, Sema::AA_Converting);
+      Begin = BeginRes.get();
+    }
+    Expr *End = D.Range.End;
+    if (!IsDeclTyDependent && End && !End->isTypeDependent()) {
+      ExprResult EndRes =
+          SemaRef.PerformImplicitConversion(End, DeclTy, Sema::AA_Converting);
+      End = EndRes.get();
+    }
+    Expr *Step = D.Range.Step;
+    if (!IsDeclTyDependent && Step && !Step->isTypeDependent()) {
+      if (!Step->getType()->isIntegralType(Context)) {
+        Diag(Step->getExprLoc(), diag::err_omp_iterator_step_not_integral)
+            << Step << Step->getSourceRange();
+        IsCorrect = false;
+        continue;
+      }
+      std::optional<llvm::APSInt> Result =
+          Step->getIntegerConstantExpr(Context);
+      // OpenMP 5.0, 2.1.6 Iterators, Restrictions
+      // If the step expression of a range-specification equals zero, the
+      // behavior is unspecified.
+      if (Result && Result->isZero()) {
+        Diag(Step->getExprLoc(), diag::err_omp_iterator_step_constant_zero)
+            << Step << Step->getSourceRange();
+        IsCorrect = false;
+        continue;
+      }
+    }
+    if (!Begin || !End || !IsCorrect) {
+      IsCorrect = false;
+      continue;
+    }
+    OMPIteratorExpr::IteratorDefinition &IDElem = ID.emplace_back();
+    IDElem.IteratorDecl = VD;
+    IDElem.AssignmentLoc = D.AssignLoc;
+    IDElem.Range.Begin = Begin;
+    IDElem.Range.End = End;
+    IDElem.Range.Step = Step;
+    IDElem.ColonLoc = D.ColonLoc;
+    IDElem.SecondColonLoc = D.SecColonLoc;
+  }
+  if (!IsCorrect) {
+    // Invalidate all created iterator declarations if error is found.
+    for (const OMPIteratorExpr::IteratorDefinition &D : ID) {
+      if (Decl *ID = D.IteratorDecl)
+        ID->setInvalidDecl();
+    }
+    return ExprError();
+  }
+  SmallVector<OMPIteratorHelperData, 4> Helpers;
+  if (!SemaRef.CurContext->isDependentContext()) {
+    // Build number of ityeration for each iteration range.
+    // Ni = ((Stepi > 0) ? ((Endi + Stepi -1 - Begini)/Stepi) :
+    // ((Begini-Stepi-1-Endi) / -Stepi);
+    for (OMPIteratorExpr::IteratorDefinition &D : ID) {
+      // (Endi - Begini)
+      ExprResult Res = SemaRef.CreateBuiltinBinOp(D.AssignmentLoc, BO_Sub,
+                                                  D.Range.End, D.Range.Begin);
+      if (!Res.isUsable()) {
+        IsCorrect = false;
+        continue;
+      }
+      ExprResult St, St1;
+      if (D.Range.Step) {
+        St = D.Range.Step;
+        // (Endi - Begini) + Stepi
+        Res = SemaRef.CreateBuiltinBinOp(D.AssignmentLoc, BO_Add, Res.get(),
+                                         St.get());
+        if (!Res.isUsable()) {
+          IsCorrect = false;
+          continue;
+        }
+        // (Endi - Begini) + Stepi - 1
+        Res = SemaRef.CreateBuiltinBinOp(
+            D.AssignmentLoc, BO_Sub, Res.get(),
+            SemaRef.ActOnIntegerConstant(D.AssignmentLoc, 1).get());
+        if (!Res.isUsable()) {
+          IsCorrect = false;
+          continue;
+        }
+        // ((Endi - Begini) + Stepi - 1) / Stepi
+        Res = SemaRef.CreateBuiltinBinOp(D.AssignmentLoc, BO_Div, Res.get(),
+                                         St.get());
+        if (!Res.isUsable()) {
+          IsCorrect = false;
+          continue;
+        }
+        St1 = SemaRef.CreateBuiltinUnaryOp(D.AssignmentLoc, UO_Minus,
+                                           D.Range.Step);
+        // (Begini - Endi)
+        ExprResult Res1 = SemaRef.CreateBuiltinBinOp(
+            D.AssignmentLoc, BO_Sub, D.Range.Begin, D.Range.End);
+        if (!Res1.isUsable()) {
+          IsCorrect = false;
+          continue;
+        }
+        // (Begini - Endi) - Stepi
+        Res1 = SemaRef.CreateBuiltinBinOp(D.AssignmentLoc, BO_Add, Res1.get(),
+                                          St1.get());
+        if (!Res1.isUsable()) {
+          IsCorrect = false;
+          continue;
+        }
+        // (Begini - Endi) - Stepi - 1
+        Res1 = SemaRef.CreateBuiltinBinOp(
+            D.AssignmentLoc, BO_Sub, Res1.get(),
+            SemaRef.ActOnIntegerConstant(D.AssignmentLoc, 1).get());
+        if (!Res1.isUsable()) {
+          IsCorrect = false;
+          continue;
+        }
+        // ((Begini - Endi) - Stepi - 1) / (-Stepi)
+        Res1 = SemaRef.CreateBuiltinBinOp(D.AssignmentLoc, BO_Div, Res1.get(),
+                                          St1.get());
+        if (!Res1.isUsable()) {
+          IsCorrect = false;
+          continue;
+        }
+        // Stepi > 0.
+        ExprResult CmpRes = SemaRef.CreateBuiltinBinOp(
+            D.AssignmentLoc, BO_GT, D.Range.Step,
+            SemaRef.ActOnIntegerConstant(D.AssignmentLoc, 0).get());
+        if (!CmpRes.isUsable()) {
+          IsCorrect = false;
+          continue;
+        }
+        Res = SemaRef.ActOnConditionalOp(D.AssignmentLoc, D.AssignmentLoc,
+                                         CmpRes.get(), Res.get(), Res1.get());
+        if (!Res.isUsable()) {
+          IsCorrect = false;
+          continue;
+        }
+      }
+      Res = SemaRef.ActOnFinishFullExpr(Res.get(), /*DiscardedValue=*/false);
+      if (!Res.isUsable()) {
+        IsCorrect = false;
+        continue;
+      }
+
+      // Build counter update.
+      // Build counter.
+      auto *CounterVD = VarDecl::Create(Context, SemaRef.CurContext,
+                                        D.IteratorDecl->getBeginLoc(),
+                                        D.IteratorDecl->getBeginLoc(), nullptr,
+                                        Res.get()->getType(), nullptr, SC_None);
+      CounterVD->setImplicit();
+      ExprResult RefRes =
+          SemaRef.BuildDeclRefExpr(CounterVD, CounterVD->getType(), VK_LValue,
+                                   D.IteratorDecl->getBeginLoc());
+      // Build counter update.
+      // I = Begini + counter * Stepi;
+      ExprResult UpdateRes;
+      if (D.Range.Step) {
+        UpdateRes = SemaRef.CreateBuiltinBinOp(
+            D.AssignmentLoc, BO_Mul,
+            SemaRef.DefaultLvalueConversion(RefRes.get()).get(), St.get());
+      } else {
+        UpdateRes = SemaRef.DefaultLvalueConversion(RefRes.get());
+      }
+      if (!UpdateRes.isUsable()) {
+        IsCorrect = false;
+        continue;
+      }
+      UpdateRes = SemaRef.CreateBuiltinBinOp(D.AssignmentLoc, BO_Add,
+                                             D.Range.Begin, UpdateRes.get());
+      if (!UpdateRes.isUsable()) {
+        IsCorrect = false;
+        continue;
+      }
+      ExprResult VDRes =
+          SemaRef.BuildDeclRefExpr(cast<VarDecl>(D.IteratorDecl),
+                                   cast<VarDecl>(D.IteratorDecl)->getType(),
+                                   VK_LValue, D.IteratorDecl->getBeginLoc());
+      UpdateRes = SemaRef.CreateBuiltinBinOp(D.AssignmentLoc, BO_Assign,
+                                             VDRes.get(), UpdateRes.get());
+      if (!UpdateRes.isUsable()) {
+        IsCorrect = false;
+        continue;
+      }
+      UpdateRes =
+          SemaRef.ActOnFinishFullExpr(UpdateRes.get(), /*DiscardedValue=*/true);
+      if (!UpdateRes.isUsable()) {
+        IsCorrect = false;
+        continue;
+      }
+      ExprResult CounterUpdateRes = SemaRef.CreateBuiltinUnaryOp(
+          D.AssignmentLoc, UO_PreInc, RefRes.get());
+      if (!CounterUpdateRes.isUsable()) {
+        IsCorrect = false;
+        continue;
+      }
+      CounterUpdateRes = SemaRef.ActOnFinishFullExpr(CounterUpdateRes.get(),
+                                                     /*DiscardedValue=*/true);
+      if (!CounterUpdateRes.isUsable()) {
+        IsCorrect = false;
+        continue;
+      }
+      OMPIteratorHelperData &HD = Helpers.emplace_back();
+      HD.CounterVD = CounterVD;
+      HD.Upper = Res.get();
+      HD.Update = UpdateRes.get();
+      HD.CounterUpdate = CounterUpdateRes.get();
+    }
+  } else {
+    Helpers.assign(ID.size(), {});
+  }
+  if (!IsCorrect) {
+    // Invalidate all created iterator declarations if error is found.
+    for (const OMPIteratorExpr::IteratorDefinition &D : ID) {
+      if (Decl *ID = D.IteratorDecl)
+        ID->setInvalidDecl();
+    }
+    return ExprError();
+  }
+  return OMPIteratorExpr::Create(Context, Context.OMPIteratorTy, IteratorKwLoc,
+                                 LLoc, RLoc, ID, Helpers);
+}
+
+SemaOpenMP::SemaOpenMP(Sema &S)
+    : SemaBase(S), VarDataSharingAttributesStack(nullptr) {}
diff --git a/clang/lib/Sema/SemaStmt.cpp b/clang/lib/Sema/SemaStmt.cpp
index d28c24cfdfd3..a7b33f0db047 100644
--- a/clang/lib/Sema/SemaStmt.cpp
+++ b/clang/lib/Sema/SemaStmt.cpp
@@ -35,6 +35,7 @@
 #include "clang/Sema/ScopeInfo.h"
 #include "clang/Sema/SemaCUDA.h"
 #include "clang/Sema/SemaInternal.h"
+#include "clang/Sema/SemaOpenMP.h"
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/STLExtras.h"
@@ -3097,7 +3098,7 @@ StmtResult Sema::BuildCXXForRangeStmt(
   // In OpenMP loop region loop control variable must be private. Perform
   // analysis of first part (if any).
   if (getLangOpts().OpenMP >= 50 && BeginDeclStmt.isUsable())
-    ActOnOpenMPLoopInitialization(ForLoc, BeginDeclStmt.get());
+    OpenMP().ActOnOpenMPLoopInitialization(ForLoc, BeginDeclStmt.get());
 
   return new (Context) CXXForRangeStmt(
       InitStmt, RangeDS, cast_or_null<DeclStmt>(BeginDeclStmt.get()),
@@ -4822,7 +4823,8 @@ buildCapturedStmtCaptureList(Sema &S, CapturedRegionScopeInfo *RSI,
       assert(Cap.isVariableCapture() && "unknown kind of capture");
 
       if (S.getLangOpts().OpenMP && RSI->CapRegionKind == CR_OpenMP)
-        S.setOpenMPCaptureKind(Field, Cap.getVariable(), RSI->OpenMPLevel);
+        S.OpenMP().setOpenMPCaptureKind(Field, Cap.getVariable(),
+                                        RSI->OpenMPLevel);
 
       Captures.push_back(CapturedStmt::Capture(
           Cap.getLocation(),
diff --git a/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp b/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
index c45a8d1408ff..6d359c5a9a02 100644
--- a/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
+++ b/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
@@ -28,6 +28,7 @@
 #include "clang/Sema/ScopeInfo.h"
 #include "clang/Sema/SemaCUDA.h"
 #include "clang/Sema/SemaInternal.h"
+#include "clang/Sema/SemaOpenMP.h"
 #include "clang/Sema/Template.h"
 #include "clang/Sema/TemplateInstCallback.h"
 #include "llvm/Support/TimeProfiler.h"
@@ -399,7 +400,7 @@ static void instantiateOMPDeclareSimdDeclAttr(
     ++SI;
   }
   LinModifiers.append(Attr.modifiers_begin(), Attr.modifiers_end());
-  (void)S.ActOnOpenMPDeclareSimdDirective(
+  (void)S.OpenMP().ActOnOpenMPDeclareSimdDirective(
       S.ConvertDeclToDeclGroup(New), Attr.getBranchState(), Simdlen.get(),
       Uniforms, Aligneds, Alignments, Linears, LinModifiers, Steps,
       Attr.getRange());
@@ -476,9 +477,9 @@ static void instantiateOMPDeclareVariantAttr(
   // Check function/variant ref for `omp declare variant` but not for `omp
   // begin declare variant` (which use implicit attributes).
   std::optional<std::pair<FunctionDecl *, Expr *>> DeclVarData =
-      S.checkOpenMPDeclareVariantFunction(S.ConvertDeclToDeclGroup(New), E, TI,
-                                          Attr.appendArgs_size(),
-                                          Attr.getRange());
+      S.OpenMP().checkOpenMPDeclareVariantFunction(
+          S.ConvertDeclToDeclGroup(New), E, TI, Attr.appendArgs_size(),
+          Attr.getRange());
 
   if (!DeclVarData)
     return;
@@ -539,7 +540,7 @@ static void instantiateOMPDeclareVariantAttr(
     AppendArgs.emplace_back(II.IsTarget, II.IsTargetSync);
   }
 
-  S.ActOnOpenMPDeclareVariantDirective(
+  S.OpenMP().ActOnOpenMPDeclareVariantDirective(
       FD, E, TI, NothingExprs, NeedDevicePtrExprs, AppendArgs, SourceLocation(),
       SourceLocation(), Attr.getRange());
 }
@@ -3587,7 +3588,7 @@ Decl *TemplateDeclInstantiator::VisitOMPThreadPrivateDecl(
   }
 
   OMPThreadPrivateDecl *TD =
-    SemaRef.CheckOMPThreadPrivateDecl(D->getLocation(), Vars);
+      SemaRef.OpenMP().CheckOMPThreadPrivateDecl(D->getLocation(), Vars);
 
   TD->setAccess(AS_public);
   Owner->addDecl(TD);
@@ -3610,14 +3611,14 @@ Decl *TemplateDeclInstantiator::VisitOMPAllocateDecl(OMPAllocateDecl *D) {
       ExprResult NewE = SemaRef.SubstExpr(AC->getAllocator(), TemplateArgs);
       if (!NewE.isUsable())
         continue;
-      IC = SemaRef.ActOnOpenMPAllocatorClause(
+      IC = SemaRef.OpenMP().ActOnOpenMPAllocatorClause(
           NewE.get(), AC->getBeginLoc(), AC->getLParenLoc(), AC->getEndLoc());
     } else if (auto *AC = dyn_cast<OMPAlignClause>(C)) {
       ExprResult NewE = SemaRef.SubstExpr(AC->getAlignment(), TemplateArgs);
       if (!NewE.isUsable())
         continue;
-      IC = SemaRef.ActOnOpenMPAlignClause(NewE.get(), AC->getBeginLoc(),
-                                          AC->getLParenLoc(), AC->getEndLoc());
+      IC = SemaRef.OpenMP().ActOnOpenMPAlignClause(
+          NewE.get(), AC->getBeginLoc(), AC->getLParenLoc(), AC->getEndLoc());
       // If align clause value ends up being invalid, this can end up null.
       if (!IC)
         continue;
@@ -3625,7 +3626,7 @@ Decl *TemplateDeclInstantiator::VisitOMPAllocateDecl(OMPAllocateDecl *D) {
     Clauses.push_back(IC);
   }
 
-  Sema::DeclGroupPtrTy Res = SemaRef.ActOnOpenMPAllocateDirective(
+  Sema::DeclGroupPtrTy Res = SemaRef.OpenMP().ActOnOpenMPAllocateDirective(
       D->getLocation(), Vars, Clauses, Owner);
   if (Res.get().isNull())
     return nullptr;
@@ -3646,7 +3647,7 @@ Decl *TemplateDeclInstantiator::VisitOMPDeclareReductionDecl(
       D->getType()->containsUnexpandedParameterPack();
   QualType SubstReductionType;
   if (RequiresInstantiation) {
-    SubstReductionType = SemaRef.ActOnOpenMPDeclareReductionType(
+    SubstReductionType = SemaRef.OpenMP().ActOnOpenMPDeclareReductionType(
         D->getLocation(),
         ParsedType::make(SemaRef.SubstType(
             D->getType(), TemplateArgs, D->getLocation(), DeclarationName())));
@@ -3667,7 +3668,7 @@ Decl *TemplateDeclInstantiator::VisitOMPDeclareReductionDecl(
         SemaRef.CurrentInstantiationScope->findInstantiationOf(PrevDeclInScope)
             ->get<Decl *>());
   }
-  auto DRD = SemaRef.ActOnOpenMPDeclareReductionDirectiveStart(
+  auto DRD = SemaRef.OpenMP().ActOnOpenMPDeclareReductionDirectiveStart(
       /*S=*/nullptr, Owner, D->getDeclName(), ReductionTypes, D->getAccess(),
       PrevDeclInScope);
   auto *NewDRD = cast<OMPDeclareReductionDecl>(DRD.get().getSingleDecl());
@@ -3676,7 +3677,7 @@ Decl *TemplateDeclInstantiator::VisitOMPDeclareReductionDecl(
   Expr *SubstInitializer = nullptr;
   // Combiners instantiation sequence.
   if (Combiner) {
-    SemaRef.ActOnOpenMPDeclareReductionCombinerStart(
+    SemaRef.OpenMP().ActOnOpenMPDeclareReductionCombinerStart(
         /*S=*/nullptr, NewDRD);
     SemaRef.CurrentInstantiationScope->InstantiatedLocal(
         cast<DeclRefExpr>(D->getCombinerIn())->getDecl(),
@@ -3688,12 +3689,14 @@ Decl *TemplateDeclInstantiator::VisitOMPDeclareReductionDecl(
     Sema::CXXThisScopeRAII ThisScope(SemaRef, ThisContext, Qualifiers(),
                                      ThisContext);
     SubstCombiner = SemaRef.SubstExpr(Combiner, TemplateArgs).get();
-    SemaRef.ActOnOpenMPDeclareReductionCombinerEnd(NewDRD, SubstCombiner);
+    SemaRef.OpenMP().ActOnOpenMPDeclareReductionCombinerEnd(NewDRD,
+                                                            SubstCombiner);
   }
   // Initializers instantiation sequence.
   if (Init) {
-    VarDecl *OmpPrivParm = SemaRef.ActOnOpenMPDeclareReductionInitializerStart(
-        /*S=*/nullptr, NewDRD);
+    VarDecl *OmpPrivParm =
+        SemaRef.OpenMP().ActOnOpenMPDeclareReductionInitializerStart(
+            /*S=*/nullptr, NewDRD);
     SemaRef.CurrentInstantiationScope->InstantiatedLocal(
         cast<DeclRefExpr>(D->getInitOrig())->getDecl(),
         cast<DeclRefExpr>(NewDRD->getInitOrig())->getDecl());
@@ -3710,8 +3713,8 @@ Decl *TemplateDeclInstantiator::VisitOMPDeclareReductionDecl(
         SemaRef.InstantiateVariableInitializer(OmpPrivParm, OldPrivParm,
                                                TemplateArgs);
     }
-    SemaRef.ActOnOpenMPDeclareReductionInitializerEnd(NewDRD, SubstInitializer,
-                                                      OmpPrivParm);
+    SemaRef.OpenMP().ActOnOpenMPDeclareReductionInitializerEnd(
+        NewDRD, SubstInitializer, OmpPrivParm);
   }
   IsCorrect = IsCorrect && SubstCombiner &&
               (!Init ||
@@ -3720,7 +3723,7 @@ Decl *TemplateDeclInstantiator::VisitOMPDeclareReductionDecl(
                (D->getInitializerKind() != OMPDeclareReductionInitKind::Call &&
                 !SubstInitializer));
 
-  (void)SemaRef.ActOnOpenMPDeclareReductionDirectiveEnd(
+  (void)SemaRef.OpenMP().ActOnOpenMPDeclareReductionDirectiveEnd(
       /*S=*/nullptr, DRD, IsCorrect && !D->isInvalidDecl());
 
   return NewDRD;
@@ -3736,7 +3739,7 @@ TemplateDeclInstantiator::VisitOMPDeclareMapperDecl(OMPDeclareMapperDecl *D) {
   QualType SubstMapperTy;
   DeclarationName VN = D->getVarName();
   if (RequiresInstantiation) {
-    SubstMapperTy = SemaRef.ActOnOpenMPDeclareMapperType(
+    SubstMapperTy = SemaRef.OpenMP().ActOnOpenMPDeclareMapperType(
         D->getLocation(),
         ParsedType::make(SemaRef.SubstType(D->getType(), TemplateArgs,
                                            D->getLocation(), VN)));
@@ -3756,11 +3759,12 @@ TemplateDeclInstantiator::VisitOMPDeclareMapperDecl(OMPDeclareMapperDecl *D) {
   SmallVector<OMPClause *, 6> Clauses;
   // Instantiate the mapper variable.
   DeclarationNameInfo DirName;
-  SemaRef.StartOpenMPDSABlock(llvm::omp::OMPD_declare_mapper, DirName,
-                              /*S=*/nullptr,
-                              (*D->clauselist_begin())->getBeginLoc());
-  ExprResult MapperVarRef = SemaRef.ActOnOpenMPDeclareMapperDirectiveVarDecl(
-      /*S=*/nullptr, SubstMapperTy, D->getLocation(), VN);
+  SemaRef.OpenMP().StartOpenMPDSABlock(llvm::omp::OMPD_declare_mapper, DirName,
+                                       /*S=*/nullptr,
+                                       (*D->clauselist_begin())->getBeginLoc());
+  ExprResult MapperVarRef =
+      SemaRef.OpenMP().ActOnOpenMPDeclareMapperDirectiveVarDecl(
+          /*S=*/nullptr, SubstMapperTy, D->getLocation(), VN);
   SemaRef.CurrentInstantiationScope->InstantiatedLocal(
       cast<DeclRefExpr>(D->getMapperVarRef())->getDecl(),
       cast<DeclRefExpr>(MapperVarRef.get())->getDecl());
@@ -3790,17 +3794,17 @@ TemplateDeclInstantiator::VisitOMPDeclareMapperDecl(OMPDeclareMapperDecl *D) {
         SemaRef.SubstDeclarationNameInfo(OldC->getMapperIdInfo(), TemplateArgs);
     OMPVarListLocTy Locs(OldC->getBeginLoc(), OldC->getLParenLoc(),
                          OldC->getEndLoc());
-    OMPClause *NewC = SemaRef.ActOnOpenMPMapClause(
+    OMPClause *NewC = SemaRef.OpenMP().ActOnOpenMPMapClause(
         OldC->getIteratorModifier(), OldC->getMapTypeModifiers(),
         OldC->getMapTypeModifiersLoc(), SS, NewNameInfo, OldC->getMapType(),
         OldC->isImplicitMapType(), OldC->getMapLoc(), OldC->getColonLoc(),
         NewVars, Locs);
     Clauses.push_back(NewC);
   }
-  SemaRef.EndOpenMPDSABlock(nullptr);
+  SemaRef.OpenMP().EndOpenMPDSABlock(nullptr);
   if (!IsCorrect)
     return nullptr;
-  Sema::DeclGroupPtrTy DG = SemaRef.ActOnOpenMPDeclareMapperDirective(
+  Sema::DeclGroupPtrTy DG = SemaRef.OpenMP().ActOnOpenMPDeclareMapperDirective(
       /*S=*/nullptr, Owner, D->getDeclName(), SubstMapperTy, D->getLocation(),
       VN, D->getAccess(), MapperVarRef.get(), Clauses, PrevDeclInScope);
   Decl *NewDMD = DG.get().getSingleDecl();
diff --git a/clang/lib/Sema/SemaType.cpp b/clang/lib/Sema/SemaType.cpp
index 404c4e8e31b5..1b31df8d97fb 100644
--- a/clang/lib/Sema/SemaType.cpp
+++ b/clang/lib/Sema/SemaType.cpp
@@ -35,6 +35,7 @@
 #include "clang/Sema/ScopeInfo.h"
 #include "clang/Sema/SemaCUDA.h"
 #include "clang/Sema/SemaInternal.h"
+#include "clang/Sema/SemaOpenMP.h"
 #include "clang/Sema/Template.h"
 #include "clang/Sema/TemplateInstCallback.h"
 #include "llvm/ADT/ArrayRef.h"
@@ -2640,7 +2641,7 @@ QualType Sema::BuildArrayType(QualType T, ArraySizeModifier ASM,
   } else if (isSFINAEContext()) {
     VLADiag = diag::err_vla_in_sfinae;
     VLAIsError = true;
-  } else if (getLangOpts().OpenMP && isInOpenMPTaskUntiedContext()) {
+  } else if (getLangOpts().OpenMP && OpenMP().isInOpenMPTaskUntiedContext()) {
     VLADiag = diag::err_openmp_vla_in_task_untied;
     VLAIsError = true;
   } else if (getLangOpts().CPlusPlus) {
diff --git a/clang/lib/Sema/TreeTransform.h b/clang/lib/Sema/TreeTransform.h
index 8c96134af7c8..acc2d7ff9d42 100644
--- a/clang/lib/Sema/TreeTransform.h
+++ b/clang/lib/Sema/TreeTransform.h
@@ -40,6 +40,7 @@
 #include "clang/Sema/SemaDiagnostic.h"
 #include "clang/Sema/SemaInternal.h"
 #include "clang/Sema/SemaOpenACC.h"
+#include "clang/Sema/SemaOpenMP.h"
 #include "clang/Sema/SemaSYCL.h"
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/Support/ErrorHandling.h"
@@ -1656,7 +1657,7 @@ public:
   /// Ensures that the outermost loop in @p LoopStmt is wrapped by a
   /// OMPCanonicalLoop.
   StmtResult RebuildOMPCanonicalLoop(Stmt *LoopStmt) {
-    return getSema().ActOnOpenMPCanonicalLoop(LoopStmt);
+    return getSema().OpenMP().ActOnOpenMPCanonicalLoop(LoopStmt);
   }
 
   /// Build a new OpenMP executable directive.
@@ -1669,7 +1670,7 @@ public:
       Stmt *AStmt, SourceLocation StartLoc, SourceLocation EndLoc,
       OpenMPDirectiveKind PrevMappedDirective = OMPD_unknown) {
 
-    return getSema().ActOnOpenMPExecutableDirective(
+    return getSema().OpenMP().ActOnOpenMPExecutableDirective(
         Kind, DirName, CancelRegion, Clauses, AStmt, StartLoc, EndLoc,
         PrevMappedDirective);
   }
@@ -1684,9 +1685,9 @@ public:
                                 SourceLocation NameModifierLoc,
                                 SourceLocation ColonLoc,
                                 SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPIfClause(NameModifier, Condition, StartLoc,
-                                         LParenLoc, NameModifierLoc, ColonLoc,
-                                         EndLoc);
+    return getSema().OpenMP().ActOnOpenMPIfClause(
+        NameModifier, Condition, StartLoc, LParenLoc, NameModifierLoc, ColonLoc,
+        EndLoc);
   }
 
   /// Build a new OpenMP 'final' clause.
@@ -1696,8 +1697,8 @@ public:
   OMPClause *RebuildOMPFinalClause(Expr *Condition, SourceLocation StartLoc,
                                    SourceLocation LParenLoc,
                                    SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPFinalClause(Condition, StartLoc, LParenLoc,
-                                            EndLoc);
+    return getSema().OpenMP().ActOnOpenMPFinalClause(Condition, StartLoc,
+                                                     LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'num_threads' clause.
@@ -1708,8 +1709,8 @@ public:
                                         SourceLocation StartLoc,
                                         SourceLocation LParenLoc,
                                         SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPNumThreadsClause(NumThreads, StartLoc,
-                                                 LParenLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPNumThreadsClause(NumThreads, StartLoc,
+                                                          LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'safelen' clause.
@@ -1719,7 +1720,8 @@ public:
   OMPClause *RebuildOMPSafelenClause(Expr *Len, SourceLocation StartLoc,
                                      SourceLocation LParenLoc,
                                      SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPSafelenClause(Len, StartLoc, LParenLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPSafelenClause(Len, StartLoc, LParenLoc,
+                                                       EndLoc);
   }
 
   /// Build a new OpenMP 'simdlen' clause.
@@ -1729,28 +1731,30 @@ public:
   OMPClause *RebuildOMPSimdlenClause(Expr *Len, SourceLocation StartLoc,
                                      SourceLocation LParenLoc,
                                      SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPSimdlenClause(Len, StartLoc, LParenLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPSimdlenClause(Len, StartLoc, LParenLoc,
+                                                       EndLoc);
   }
 
   OMPClause *RebuildOMPSizesClause(ArrayRef<Expr *> Sizes,
                                    SourceLocation StartLoc,
                                    SourceLocation LParenLoc,
                                    SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPSizesClause(Sizes, StartLoc, LParenLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPSizesClause(Sizes, StartLoc, LParenLoc,
+                                                     EndLoc);
   }
 
   /// Build a new OpenMP 'full' clause.
   OMPClause *RebuildOMPFullClause(SourceLocation StartLoc,
                                   SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPFullClause(StartLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPFullClause(StartLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'partial' clause.
   OMPClause *RebuildOMPPartialClause(Expr *Factor, SourceLocation StartLoc,
                                      SourceLocation LParenLoc,
                                      SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPPartialClause(Factor, StartLoc, LParenLoc,
-                                              EndLoc);
+    return getSema().OpenMP().ActOnOpenMPPartialClause(Factor, StartLoc,
+                                                       LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'allocator' clause.
@@ -1760,7 +1764,8 @@ public:
   OMPClause *RebuildOMPAllocatorClause(Expr *A, SourceLocation StartLoc,
                                        SourceLocation LParenLoc,
                                        SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPAllocatorClause(A, StartLoc, LParenLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPAllocatorClause(A, StartLoc, LParenLoc,
+                                                         EndLoc);
   }
 
   /// Build a new OpenMP 'collapse' clause.
@@ -1770,8 +1775,8 @@ public:
   OMPClause *RebuildOMPCollapseClause(Expr *Num, SourceLocation StartLoc,
                                       SourceLocation LParenLoc,
                                       SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPCollapseClause(Num, StartLoc, LParenLoc,
-                                               EndLoc);
+    return getSema().OpenMP().ActOnOpenMPCollapseClause(Num, StartLoc,
+                                                        LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'default' clause.
@@ -1782,8 +1787,8 @@ public:
                                      SourceLocation StartLoc,
                                      SourceLocation LParenLoc,
                                      SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPDefaultClause(Kind, KindKwLoc,
-                                              StartLoc, LParenLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPDefaultClause(
+        Kind, KindKwLoc, StartLoc, LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'proc_bind' clause.
@@ -1795,8 +1800,8 @@ public:
                                       SourceLocation StartLoc,
                                       SourceLocation LParenLoc,
                                       SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPProcBindClause(Kind, KindKwLoc,
-                                               StartLoc, LParenLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPProcBindClause(
+        Kind, KindKwLoc, StartLoc, LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'schedule' clause.
@@ -1808,7 +1813,7 @@ public:
       OpenMPScheduleClauseKind Kind, Expr *ChunkSize, SourceLocation StartLoc,
       SourceLocation LParenLoc, SourceLocation M1Loc, SourceLocation M2Loc,
       SourceLocation KindLoc, SourceLocation CommaLoc, SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPScheduleClause(
+    return getSema().OpenMP().ActOnOpenMPScheduleClause(
         M1, M2, Kind, ChunkSize, StartLoc, LParenLoc, M1Loc, M2Loc, KindLoc,
         CommaLoc, EndLoc);
   }
@@ -1820,7 +1825,8 @@ public:
   OMPClause *RebuildOMPOrderedClause(SourceLocation StartLoc,
                                      SourceLocation EndLoc,
                                      SourceLocation LParenLoc, Expr *Num) {
-    return getSema().ActOnOpenMPOrderedClause(StartLoc, EndLoc, LParenLoc, Num);
+    return getSema().OpenMP().ActOnOpenMPOrderedClause(StartLoc, EndLoc,
+                                                       LParenLoc, Num);
   }
 
   /// Build a new OpenMP 'private' clause.
@@ -1831,8 +1837,8 @@ public:
                                      SourceLocation StartLoc,
                                      SourceLocation LParenLoc,
                                      SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPPrivateClause(VarList, StartLoc, LParenLoc,
-                                              EndLoc);
+    return getSema().OpenMP().ActOnOpenMPPrivateClause(VarList, StartLoc,
+                                                       LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'firstprivate' clause.
@@ -1843,8 +1849,8 @@ public:
                                           SourceLocation StartLoc,
                                           SourceLocation LParenLoc,
                                           SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPFirstprivateClause(VarList, StartLoc, LParenLoc,
-                                                   EndLoc);
+    return getSema().OpenMP().ActOnOpenMPFirstprivateClause(VarList, StartLoc,
+                                                            LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'lastprivate' clause.
@@ -1858,7 +1864,7 @@ public:
                                          SourceLocation StartLoc,
                                          SourceLocation LParenLoc,
                                          SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPLastprivateClause(
+    return getSema().OpenMP().ActOnOpenMPLastprivateClause(
         VarList, LPKind, LPKindLoc, ColonLoc, StartLoc, LParenLoc, EndLoc);
   }
 
@@ -1870,8 +1876,8 @@ public:
                                     SourceLocation StartLoc,
                                     SourceLocation LParenLoc,
                                     SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPSharedClause(VarList, StartLoc, LParenLoc,
-                                             EndLoc);
+    return getSema().OpenMP().ActOnOpenMPSharedClause(VarList, StartLoc,
+                                                      LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'reduction' clause.
@@ -1885,7 +1891,7 @@ public:
       SourceLocation EndLoc, CXXScopeSpec &ReductionIdScopeSpec,
       const DeclarationNameInfo &ReductionId,
       ArrayRef<Expr *> UnresolvedReductions) {
-    return getSema().ActOnOpenMPReductionClause(
+    return getSema().OpenMP().ActOnOpenMPReductionClause(
         VarList, Modifier, StartLoc, LParenLoc, ModifierLoc, ColonLoc, EndLoc,
         ReductionIdScopeSpec, ReductionId, UnresolvedReductions);
   }
@@ -1900,7 +1906,7 @@ public:
       CXXScopeSpec &ReductionIdScopeSpec,
       const DeclarationNameInfo &ReductionId,
       ArrayRef<Expr *> UnresolvedReductions) {
-    return getSema().ActOnOpenMPTaskReductionClause(
+    return getSema().OpenMP().ActOnOpenMPTaskReductionClause(
         VarList, StartLoc, LParenLoc, ColonLoc, EndLoc, ReductionIdScopeSpec,
         ReductionId, UnresolvedReductions);
   }
@@ -1916,7 +1922,7 @@ public:
                               CXXScopeSpec &ReductionIdScopeSpec,
                               const DeclarationNameInfo &ReductionId,
                               ArrayRef<Expr *> UnresolvedReductions) {
-    return getSema().ActOnOpenMPInReductionClause(
+    return getSema().OpenMP().ActOnOpenMPInReductionClause(
         VarList, StartLoc, LParenLoc, ColonLoc, EndLoc, ReductionIdScopeSpec,
         ReductionId, UnresolvedReductions);
   }
@@ -1930,9 +1936,9 @@ public:
       SourceLocation LParenLoc, OpenMPLinearClauseKind Modifier,
       SourceLocation ModifierLoc, SourceLocation ColonLoc,
       SourceLocation StepModifierLoc, SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPLinearClause(VarList, Step, StartLoc, LParenLoc,
-                                             Modifier, ModifierLoc, ColonLoc,
-                                             StepModifierLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPLinearClause(
+        VarList, Step, StartLoc, LParenLoc, Modifier, ModifierLoc, ColonLoc,
+        StepModifierLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'aligned' clause.
@@ -1944,8 +1950,8 @@ public:
                                      SourceLocation LParenLoc,
                                      SourceLocation ColonLoc,
                                      SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPAlignedClause(VarList, Alignment, StartLoc,
-                                              LParenLoc, ColonLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPAlignedClause(
+        VarList, Alignment, StartLoc, LParenLoc, ColonLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'copyin' clause.
@@ -1956,8 +1962,8 @@ public:
                                     SourceLocation StartLoc,
                                     SourceLocation LParenLoc,
                                     SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPCopyinClause(VarList, StartLoc, LParenLoc,
-                                             EndLoc);
+    return getSema().OpenMP().ActOnOpenMPCopyinClause(VarList, StartLoc,
+                                                      LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'copyprivate' clause.
@@ -1968,8 +1974,8 @@ public:
                                          SourceLocation StartLoc,
                                          SourceLocation LParenLoc,
                                          SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPCopyprivateClause(VarList, StartLoc, LParenLoc,
-                                                  EndLoc);
+    return getSema().OpenMP().ActOnOpenMPCopyprivateClause(VarList, StartLoc,
+                                                           LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'flush' pseudo clause.
@@ -1980,8 +1986,8 @@ public:
                                    SourceLocation StartLoc,
                                    SourceLocation LParenLoc,
                                    SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPFlushClause(VarList, StartLoc, LParenLoc,
-                                            EndLoc);
+    return getSema().OpenMP().ActOnOpenMPFlushClause(VarList, StartLoc,
+                                                     LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'depobj' pseudo clause.
@@ -1991,8 +1997,8 @@ public:
   OMPClause *RebuildOMPDepobjClause(Expr *Depobj, SourceLocation StartLoc,
                                     SourceLocation LParenLoc,
                                     SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPDepobjClause(Depobj, StartLoc, LParenLoc,
-                                             EndLoc);
+    return getSema().OpenMP().ActOnOpenMPDepobjClause(Depobj, StartLoc,
+                                                      LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'depend' pseudo clause.
@@ -2004,8 +2010,8 @@ public:
                                     SourceLocation StartLoc,
                                     SourceLocation LParenLoc,
                                     SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPDependClause(Data, DepModifier, VarList,
-                                             StartLoc, LParenLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPDependClause(
+        Data, DepModifier, VarList, StartLoc, LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'device' clause.
@@ -2017,8 +2023,8 @@ public:
                                     SourceLocation LParenLoc,
                                     SourceLocation ModifierLoc,
                                     SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPDeviceClause(Modifier, Device, StartLoc,
-                                             LParenLoc, ModifierLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPDeviceClause(
+        Modifier, Device, StartLoc, LParenLoc, ModifierLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'map' clause.
@@ -2032,7 +2038,7 @@ public:
       OpenMPMapClauseKind MapType, bool IsMapTypeImplicit,
       SourceLocation MapLoc, SourceLocation ColonLoc, ArrayRef<Expr *> VarList,
       const OMPVarListLocTy &Locs, ArrayRef<Expr *> UnresolvedMappers) {
-    return getSema().ActOnOpenMPMapClause(
+    return getSema().OpenMP().ActOnOpenMPMapClause(
         IteratorModifier, MapTypeModifiers, MapTypeModifiersLoc,
         MapperIdScopeSpec, MapperId, MapType, IsMapTypeImplicit, MapLoc,
         ColonLoc, VarList, Locs,
@@ -2048,8 +2054,8 @@ public:
                                       SourceLocation LParenLoc,
                                       SourceLocation ColonLoc,
                                       SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPAllocateClause(Allocate, VarList, StartLoc,
-                                               LParenLoc, ColonLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPAllocateClause(
+        Allocate, VarList, StartLoc, LParenLoc, ColonLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'num_teams' clause.
@@ -2059,8 +2065,8 @@ public:
   OMPClause *RebuildOMPNumTeamsClause(Expr *NumTeams, SourceLocation StartLoc,
                                       SourceLocation LParenLoc,
                                       SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPNumTeamsClause(NumTeams, StartLoc, LParenLoc,
-                                               EndLoc);
+    return getSema().OpenMP().ActOnOpenMPNumTeamsClause(NumTeams, StartLoc,
+                                                        LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'thread_limit' clause.
@@ -2071,8 +2077,8 @@ public:
                                          SourceLocation StartLoc,
                                          SourceLocation LParenLoc,
                                          SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPThreadLimitClause(ThreadLimit, StartLoc,
-                                                  LParenLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPThreadLimitClause(
+        ThreadLimit, StartLoc, LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'priority' clause.
@@ -2082,8 +2088,8 @@ public:
   OMPClause *RebuildOMPPriorityClause(Expr *Priority, SourceLocation StartLoc,
                                       SourceLocation LParenLoc,
                                       SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPPriorityClause(Priority, StartLoc, LParenLoc,
-                                               EndLoc);
+    return getSema().OpenMP().ActOnOpenMPPriorityClause(Priority, StartLoc,
+                                                        LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'grainsize' clause.
@@ -2095,8 +2101,8 @@ public:
                                        SourceLocation LParenLoc,
                                        SourceLocation ModifierLoc,
                                        SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPGrainsizeClause(Modifier, Device, StartLoc,
-                                                LParenLoc, ModifierLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPGrainsizeClause(
+        Modifier, Device, StartLoc, LParenLoc, ModifierLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'num_tasks' clause.
@@ -2108,8 +2114,8 @@ public:
                                       SourceLocation LParenLoc,
                                       SourceLocation ModifierLoc,
                                       SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPNumTasksClause(Modifier, NumTasks, StartLoc,
-                                               LParenLoc, ModifierLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPNumTasksClause(
+        Modifier, NumTasks, StartLoc, LParenLoc, ModifierLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'hint' clause.
@@ -2119,7 +2125,8 @@ public:
   OMPClause *RebuildOMPHintClause(Expr *Hint, SourceLocation StartLoc,
                                   SourceLocation LParenLoc,
                                   SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPHintClause(Hint, StartLoc, LParenLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPHintClause(Hint, StartLoc, LParenLoc,
+                                                    EndLoc);
   }
 
   /// Build a new OpenMP 'detach' clause.
@@ -2129,7 +2136,8 @@ public:
   OMPClause *RebuildOMPDetachClause(Expr *Evt, SourceLocation StartLoc,
                                     SourceLocation LParenLoc,
                                     SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPDetachClause(Evt, StartLoc, LParenLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPDetachClause(Evt, StartLoc, LParenLoc,
+                                                      EndLoc);
   }
 
   /// Build a new OpenMP 'dist_schedule' clause.
@@ -2141,7 +2149,7 @@ public:
                                Expr *ChunkSize, SourceLocation StartLoc,
                                SourceLocation LParenLoc, SourceLocation KindLoc,
                                SourceLocation CommaLoc, SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPDistScheduleClause(
+    return getSema().OpenMP().ActOnOpenMPDistScheduleClause(
         Kind, ChunkSize, StartLoc, LParenLoc, KindLoc, CommaLoc, EndLoc);
   }
 
@@ -2156,9 +2164,9 @@ public:
                      DeclarationNameInfo &MapperId, SourceLocation ColonLoc,
                      ArrayRef<Expr *> VarList, const OMPVarListLocTy &Locs,
                      ArrayRef<Expr *> UnresolvedMappers) {
-    return getSema().ActOnOpenMPToClause(MotionModifiers, MotionModifiersLoc,
-                                         MapperIdScopeSpec, MapperId, ColonLoc,
-                                         VarList, Locs, UnresolvedMappers);
+    return getSema().OpenMP().ActOnOpenMPToClause(
+        MotionModifiers, MotionModifiersLoc, MapperIdScopeSpec, MapperId,
+        ColonLoc, VarList, Locs, UnresolvedMappers);
   }
 
   /// Build a new OpenMP 'from' clause.
@@ -2172,7 +2180,7 @@ public:
                        DeclarationNameInfo &MapperId, SourceLocation ColonLoc,
                        ArrayRef<Expr *> VarList, const OMPVarListLocTy &Locs,
                        ArrayRef<Expr *> UnresolvedMappers) {
-    return getSema().ActOnOpenMPFromClause(
+    return getSema().OpenMP().ActOnOpenMPFromClause(
         MotionModifiers, MotionModifiersLoc, MapperIdScopeSpec, MapperId,
         ColonLoc, VarList, Locs, UnresolvedMappers);
   }
@@ -2183,7 +2191,7 @@ public:
   /// Subclasses may override this routine to provide different behavior.
   OMPClause *RebuildOMPUseDevicePtrClause(ArrayRef<Expr *> VarList,
                                           const OMPVarListLocTy &Locs) {
-    return getSema().ActOnOpenMPUseDevicePtrClause(VarList, Locs);
+    return getSema().OpenMP().ActOnOpenMPUseDevicePtrClause(VarList, Locs);
   }
 
   /// Build a new OpenMP 'use_device_addr' clause.
@@ -2192,7 +2200,7 @@ public:
   /// Subclasses may override this routine to provide different behavior.
   OMPClause *RebuildOMPUseDeviceAddrClause(ArrayRef<Expr *> VarList,
                                            const OMPVarListLocTy &Locs) {
-    return getSema().ActOnOpenMPUseDeviceAddrClause(VarList, Locs);
+    return getSema().OpenMP().ActOnOpenMPUseDeviceAddrClause(VarList, Locs);
   }
 
   /// Build a new OpenMP 'is_device_ptr' clause.
@@ -2201,7 +2209,7 @@ public:
   /// Subclasses may override this routine to provide different behavior.
   OMPClause *RebuildOMPIsDevicePtrClause(ArrayRef<Expr *> VarList,
                                          const OMPVarListLocTy &Locs) {
-    return getSema().ActOnOpenMPIsDevicePtrClause(VarList, Locs);
+    return getSema().OpenMP().ActOnOpenMPIsDevicePtrClause(VarList, Locs);
   }
 
   /// Build a new OpenMP 'has_device_addr' clause.
@@ -2210,7 +2218,7 @@ public:
   /// Subclasses may override this routine to provide different behavior.
   OMPClause *RebuildOMPHasDeviceAddrClause(ArrayRef<Expr *> VarList,
                                            const OMPVarListLocTy &Locs) {
-    return getSema().ActOnOpenMPHasDeviceAddrClause(VarList, Locs);
+    return getSema().OpenMP().ActOnOpenMPHasDeviceAddrClause(VarList, Locs);
   }
 
   /// Build a new OpenMP 'defaultmap' clause.
@@ -2224,8 +2232,8 @@ public:
                                         SourceLocation MLoc,
                                         SourceLocation KindLoc,
                                         SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPDefaultmapClause(M, Kind, StartLoc, LParenLoc,
-                                                 MLoc, KindLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPDefaultmapClause(
+        M, Kind, StartLoc, LParenLoc, MLoc, KindLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'nontemporal' clause.
@@ -2236,8 +2244,8 @@ public:
                                          SourceLocation StartLoc,
                                          SourceLocation LParenLoc,
                                          SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPNontemporalClause(VarList, StartLoc, LParenLoc,
-                                                  EndLoc);
+    return getSema().OpenMP().ActOnOpenMPNontemporalClause(VarList, StartLoc,
+                                                           LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'inclusive' clause.
@@ -2248,8 +2256,8 @@ public:
                                        SourceLocation StartLoc,
                                        SourceLocation LParenLoc,
                                        SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPInclusiveClause(VarList, StartLoc, LParenLoc,
-                                                EndLoc);
+    return getSema().OpenMP().ActOnOpenMPInclusiveClause(VarList, StartLoc,
+                                                         LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'exclusive' clause.
@@ -2260,8 +2268,8 @@ public:
                                        SourceLocation StartLoc,
                                        SourceLocation LParenLoc,
                                        SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPExclusiveClause(VarList, StartLoc, LParenLoc,
-                                                EndLoc);
+    return getSema().OpenMP().ActOnOpenMPExclusiveClause(VarList, StartLoc,
+                                                         LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'uses_allocators' clause.
@@ -2269,10 +2277,10 @@ public:
   /// By default, performs semantic analysis to build the new OpenMP clause.
   /// Subclasses may override this routine to provide different behavior.
   OMPClause *RebuildOMPUsesAllocatorsClause(
-      ArrayRef<Sema::UsesAllocatorsData> Data, SourceLocation StartLoc,
+      ArrayRef<SemaOpenMP::UsesAllocatorsData> Data, SourceLocation StartLoc,
       SourceLocation LParenLoc, SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPUsesAllocatorClause(StartLoc, LParenLoc, EndLoc,
-                                                    Data);
+    return getSema().OpenMP().ActOnOpenMPUsesAllocatorClause(
+        StartLoc, LParenLoc, EndLoc, Data);
   }
 
   /// Build a new OpenMP 'affinity' clause.
@@ -2284,8 +2292,8 @@ public:
                                       SourceLocation ColonLoc,
                                       SourceLocation EndLoc, Expr *Modifier,
                                       ArrayRef<Expr *> Locators) {
-    return getSema().ActOnOpenMPAffinityClause(StartLoc, LParenLoc, ColonLoc,
-                                               EndLoc, Modifier, Locators);
+    return getSema().OpenMP().ActOnOpenMPAffinityClause(
+        StartLoc, LParenLoc, ColonLoc, EndLoc, Modifier, Locators);
   }
 
   /// Build a new OpenMP 'order' clause.
@@ -2296,8 +2304,8 @@ public:
       OpenMPOrderClauseKind Kind, SourceLocation KindKwLoc,
       SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation EndLoc,
       OpenMPOrderClauseModifier Modifier, SourceLocation ModifierKwLoc) {
-    return getSema().ActOnOpenMPOrderClause(Modifier, Kind, StartLoc, LParenLoc,
-                                            ModifierKwLoc, KindKwLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPOrderClause(
+        Modifier, Kind, StartLoc, LParenLoc, ModifierKwLoc, KindKwLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'init' clause.
@@ -2309,8 +2317,8 @@ public:
                                   SourceLocation LParenLoc,
                                   SourceLocation VarLoc,
                                   SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPInitClause(InteropVar, InteropInfo, StartLoc,
-                                           LParenLoc, VarLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPInitClause(
+        InteropVar, InteropInfo, StartLoc, LParenLoc, VarLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'use' clause.
@@ -2320,8 +2328,8 @@ public:
   OMPClause *RebuildOMPUseClause(Expr *InteropVar, SourceLocation StartLoc,
                                  SourceLocation LParenLoc,
                                  SourceLocation VarLoc, SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPUseClause(InteropVar, StartLoc, LParenLoc,
-                                          VarLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPUseClause(InteropVar, StartLoc,
+                                                   LParenLoc, VarLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'destroy' clause.
@@ -2332,8 +2340,8 @@ public:
                                      SourceLocation LParenLoc,
                                      SourceLocation VarLoc,
                                      SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPDestroyClause(InteropVar, StartLoc, LParenLoc,
-                                              VarLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPDestroyClause(
+        InteropVar, StartLoc, LParenLoc, VarLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'novariants' clause.
@@ -2344,8 +2352,8 @@ public:
                                         SourceLocation StartLoc,
                                         SourceLocation LParenLoc,
                                         SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPNovariantsClause(Condition, StartLoc, LParenLoc,
-                                                 EndLoc);
+    return getSema().OpenMP().ActOnOpenMPNovariantsClause(Condition, StartLoc,
+                                                          LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'nocontext' clause.
@@ -2355,8 +2363,8 @@ public:
   OMPClause *RebuildOMPNocontextClause(Expr *Condition, SourceLocation StartLoc,
                                        SourceLocation LParenLoc,
                                        SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPNocontextClause(Condition, StartLoc, LParenLoc,
-                                                EndLoc);
+    return getSema().OpenMP().ActOnOpenMPNocontextClause(Condition, StartLoc,
+                                                         LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'filter' clause.
@@ -2366,8 +2374,8 @@ public:
   OMPClause *RebuildOMPFilterClause(Expr *ThreadID, SourceLocation StartLoc,
                                     SourceLocation LParenLoc,
                                     SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPFilterClause(ThreadID, StartLoc, LParenLoc,
-                                             EndLoc);
+    return getSema().OpenMP().ActOnOpenMPFilterClause(ThreadID, StartLoc,
+                                                      LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'bind' clause.
@@ -2379,8 +2387,8 @@ public:
                                   SourceLocation StartLoc,
                                   SourceLocation LParenLoc,
                                   SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPBindClause(Kind, KindLoc, StartLoc, LParenLoc,
-                                           EndLoc);
+    return getSema().OpenMP().ActOnOpenMPBindClause(Kind, KindLoc, StartLoc,
+                                                    LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'ompx_dyn_cgroup_mem' clause.
@@ -2390,8 +2398,8 @@ public:
   OMPClause *RebuildOMPXDynCGroupMemClause(Expr *Size, SourceLocation StartLoc,
                                            SourceLocation LParenLoc,
                                            SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPXDynCGroupMemClause(Size, StartLoc, LParenLoc,
-                                                    EndLoc);
+    return getSema().OpenMP().ActOnOpenMPXDynCGroupMemClause(Size, StartLoc,
+                                                             LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'ompx_attribute' clause.
@@ -2402,8 +2410,8 @@ public:
                                         SourceLocation StartLoc,
                                         SourceLocation LParenLoc,
                                         SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPXAttributeClause(Attrs, StartLoc, LParenLoc,
-                                                 EndLoc);
+    return getSema().OpenMP().ActOnOpenMPXAttributeClause(Attrs, StartLoc,
+                                                          LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'ompx_bare' clause.
@@ -2412,7 +2420,7 @@ public:
   /// Subclasses may override this routine to provide different behavior.
   OMPClause *RebuildOMPXBareClause(SourceLocation StartLoc,
                                    SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPXBareClause(StartLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPXBareClause(StartLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'align' clause.
@@ -2422,7 +2430,8 @@ public:
   OMPClause *RebuildOMPAlignClause(Expr *A, SourceLocation StartLoc,
                                    SourceLocation LParenLoc,
                                    SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPAlignClause(A, StartLoc, LParenLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPAlignClause(A, StartLoc, LParenLoc,
+                                                     EndLoc);
   }
 
   /// Build a new OpenMP 'at' clause.
@@ -2433,8 +2442,8 @@ public:
                                 SourceLocation StartLoc,
                                 SourceLocation LParenLoc,
                                 SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPAtClause(Kind, KwLoc, StartLoc, LParenLoc,
-                                         EndLoc);
+    return getSema().OpenMP().ActOnOpenMPAtClause(Kind, KwLoc, StartLoc,
+                                                  LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'severity' clause.
@@ -2446,8 +2455,8 @@ public:
                                       SourceLocation StartLoc,
                                       SourceLocation LParenLoc,
                                       SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPSeverityClause(Kind, KwLoc, StartLoc, LParenLoc,
-                                               EndLoc);
+    return getSema().OpenMP().ActOnOpenMPSeverityClause(Kind, KwLoc, StartLoc,
+                                                        LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'message' clause.
@@ -2457,7 +2466,8 @@ public:
   OMPClause *RebuildOMPMessageClause(Expr *MS, SourceLocation StartLoc,
                                      SourceLocation LParenLoc,
                                      SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPMessageClause(MS, StartLoc, LParenLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPMessageClause(MS, StartLoc, LParenLoc,
+                                                       EndLoc);
   }
 
   /// Build a new OpenMP 'doacross' clause.
@@ -2469,7 +2479,7 @@ public:
                            SourceLocation DepLoc, SourceLocation ColonLoc,
                            ArrayRef<Expr *> VarList, SourceLocation StartLoc,
                            SourceLocation LParenLoc, SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPDoacrossClause(
+    return getSema().OpenMP().ActOnOpenMPDoacrossClause(
         DepType, DepLoc, ColonLoc, VarList, StartLoc, LParenLoc, EndLoc);
   }
 
@@ -2777,9 +2787,9 @@ public:
                                         SourceLocation ColonLocSecond,
                                         Expr *Length, Expr *Stride,
                                         SourceLocation RBracketLoc) {
-    return getSema().ActOnOMPArraySectionExpr(Base, LBracketLoc, LowerBound,
-                                              ColonLocFirst, ColonLocSecond,
-                                              Length, Stride, RBracketLoc);
+    return getSema().OpenMP().ActOnOMPArraySectionExpr(
+        Base, LBracketLoc, LowerBound, ColonLocFirst, ColonLocSecond, Length,
+        Stride, RBracketLoc);
   }
 
   /// Build a new array shaping expression.
@@ -2790,19 +2800,20 @@ public:
                                         SourceLocation RParenLoc,
                                         ArrayRef<Expr *> Dims,
                                         ArrayRef<SourceRange> BracketsRanges) {
-    return getSema().ActOnOMPArrayShapingExpr(Base, LParenLoc, RParenLoc, Dims,
-                                              BracketsRanges);
+    return getSema().OpenMP().ActOnOMPArrayShapingExpr(
+        Base, LParenLoc, RParenLoc, Dims, BracketsRanges);
   }
 
   /// Build a new iterator expression.
   ///
   /// By default, performs semantic analysis to build the new expression.
   /// Subclasses may override this routine to provide different behavior.
-  ExprResult RebuildOMPIteratorExpr(
-      SourceLocation IteratorKwLoc, SourceLocation LLoc, SourceLocation RLoc,
-      ArrayRef<Sema::OMPIteratorData> Data) {
-    return getSema().ActOnOMPIteratorExpr(/*Scope=*/nullptr, IteratorKwLoc,
-                                          LLoc, RLoc, Data);
+  ExprResult
+  RebuildOMPIteratorExpr(SourceLocation IteratorKwLoc, SourceLocation LLoc,
+                         SourceLocation RLoc,
+                         ArrayRef<SemaOpenMP::OMPIteratorData> Data) {
+    return getSema().OpenMP().ActOnOMPIteratorExpr(
+        /*Scope=*/nullptr, IteratorKwLoc, LLoc, RLoc, Data);
   }
 
   /// Build a new call expression.
@@ -8060,7 +8071,7 @@ template<typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformForStmt(ForStmt *S) {
   if (getSema().getLangOpts().OpenMP)
-    getSema().startOpenMPLoop();
+    getSema().OpenMP().startOpenMPLoop();
 
   // Transform the initialization statement
   StmtResult Init = getDerived().TransformStmt(S->getInit());
@@ -8070,7 +8081,8 @@ TreeTransform<Derived>::TransformForStmt(ForStmt *S) {
   // In OpenMP loop region loop control variable must be captured and be
   // private. Perform analysis of first part (if any).
   if (getSema().getLangOpts().OpenMP && Init.isUsable())
-    getSema().ActOnOpenMPLoopInitialization(S->getForLoc(), Init.get());
+    getSema().OpenMP().ActOnOpenMPLoopInitialization(S->getForLoc(),
+                                                     Init.get());
 
   // Transform the condition
   Sema::ConditionResult Cond = getDerived().TransformCondition(
@@ -9029,9 +9041,9 @@ StmtResult TreeTransform<Derived>::TransformOMPExecutableDirective(
   for (ArrayRef<OMPClause *>::iterator I = Clauses.begin(), E = Clauses.end();
        I != E; ++I) {
     if (*I) {
-      getDerived().getSema().StartOpenMPClause((*I)->getClauseKind());
+      getDerived().getSema().OpenMP().StartOpenMPClause((*I)->getClauseKind());
       OMPClause *Clause = getDerived().TransformOMPClause(*I);
-      getDerived().getSema().EndOpenMPClause();
+      getDerived().getSema().OpenMP().EndOpenMPClause();
       if (Clause)
         TClauses.push_back(Clause);
     } else {
@@ -9040,8 +9052,9 @@ StmtResult TreeTransform<Derived>::TransformOMPExecutableDirective(
   }
   StmtResult AssociatedStmt;
   if (D->hasAssociatedStmt() && D->getAssociatedStmt()) {
-    getDerived().getSema().ActOnOpenMPRegionStart(D->getDirectiveKind(),
-                                                  /*CurScope=*/nullptr);
+    getDerived().getSema().OpenMP().ActOnOpenMPRegionStart(
+        D->getDirectiveKind(),
+        /*CurScope=*/nullptr);
     StmtResult Body;
     {
       Sema::CompoundScopeRAII CompoundScope(getSema());
@@ -9059,7 +9072,7 @@ StmtResult TreeTransform<Derived>::TransformOMPExecutableDirective(
         Body = getDerived().RebuildOMPCanonicalLoop(Body.get());
     }
     AssociatedStmt =
-        getDerived().getSema().ActOnOpenMPRegionEnd(Body, TClauses);
+        getDerived().getSema().OpenMP().ActOnOpenMPRegionEnd(Body, TClauses);
     if (AssociatedStmt.isInvalid()) {
       return StmtError();
     }
@@ -9100,10 +9113,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPParallelDirective(OMPParallelDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_parallel, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_parallel, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9111,10 +9124,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPSimdDirective(OMPSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_simd, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_simd, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9122,10 +9135,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPTileDirective(OMPTileDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(D->getDirectiveKind(), DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      D->getDirectiveKind(), DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9133,10 +9146,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPUnrollDirective(OMPUnrollDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(D->getDirectiveKind(), DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      D->getDirectiveKind(), DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9144,10 +9157,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPForDirective(OMPForDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_for, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_for, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9155,10 +9168,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPForSimdDirective(OMPForSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_for_simd, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_for_simd, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9166,10 +9179,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPSectionsDirective(OMPSectionsDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_sections, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_sections, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9177,10 +9190,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPSectionDirective(OMPSectionDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_section, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_section, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9188,10 +9201,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPScopeDirective(OMPScopeDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_scope, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_scope, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9199,10 +9212,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPSingleDirective(OMPSingleDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_single, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_single, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9210,20 +9223,20 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPMasterDirective(OMPMasterDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_master, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_master, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
 template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPCriticalDirective(OMPCriticalDirective *D) {
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_critical, D->getDirectiveName(), nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9231,10 +9244,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPParallelForDirective(
     OMPParallelForDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_parallel_for, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_parallel_for, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9242,10 +9255,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPParallelForSimdDirective(
     OMPParallelForSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_parallel_for_simd, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_parallel_for_simd, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9253,10 +9266,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPParallelMasterDirective(
     OMPParallelMasterDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_parallel_master, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_parallel_master, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9264,10 +9277,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPParallelMaskedDirective(
     OMPParallelMaskedDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_parallel_masked, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_parallel_masked, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9275,10 +9288,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPParallelSectionsDirective(
     OMPParallelSectionsDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_parallel_sections, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_parallel_sections, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9286,10 +9299,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPTaskDirective(OMPTaskDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_task, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_task, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9297,10 +9310,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTaskyieldDirective(
     OMPTaskyieldDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_taskyield, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_taskyield, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9308,10 +9321,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPBarrierDirective(OMPBarrierDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_barrier, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_barrier, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9319,10 +9332,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPTaskwaitDirective(OMPTaskwaitDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_taskwait, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_taskwait, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9330,10 +9343,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPErrorDirective(OMPErrorDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_error, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_error, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9341,10 +9354,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTaskgroupDirective(
     OMPTaskgroupDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_taskgroup, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_taskgroup, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9352,10 +9365,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPFlushDirective(OMPFlushDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_flush, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_flush, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9363,10 +9376,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPDepobjDirective(OMPDepobjDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_depobj, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_depobj, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9374,10 +9387,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPScanDirective(OMPScanDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_scan, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_scan, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9385,10 +9398,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPOrderedDirective(OMPOrderedDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_ordered, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_ordered, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9396,10 +9409,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPAtomicDirective(OMPAtomicDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_atomic, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_atomic, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9407,10 +9420,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPTargetDirective(OMPTargetDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_target, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_target, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9418,10 +9431,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTargetDataDirective(
     OMPTargetDataDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_target_data, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_target_data, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9429,10 +9442,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTargetEnterDataDirective(
     OMPTargetEnterDataDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_target_enter_data, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_target_enter_data, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9440,10 +9453,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTargetExitDataDirective(
     OMPTargetExitDataDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_target_exit_data, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_target_exit_data, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9451,10 +9464,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTargetParallelDirective(
     OMPTargetParallelDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_target_parallel, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_target_parallel, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9462,10 +9475,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTargetParallelForDirective(
     OMPTargetParallelForDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_target_parallel_for, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_target_parallel_for, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9473,10 +9486,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTargetUpdateDirective(
     OMPTargetUpdateDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_target_update, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_target_update, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9484,10 +9497,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPTeamsDirective(OMPTeamsDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_teams, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_teams, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9495,10 +9508,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPCancellationPointDirective(
     OMPCancellationPointDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_cancellation_point, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_cancellation_point, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9506,10 +9519,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPCancelDirective(OMPCancelDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_cancel, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_cancel, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9517,10 +9530,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPTaskLoopDirective(OMPTaskLoopDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_taskloop, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_taskloop, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9528,10 +9541,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTaskLoopSimdDirective(
     OMPTaskLoopSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_taskloop_simd, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_taskloop_simd, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9539,10 +9552,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPMasterTaskLoopDirective(
     OMPMasterTaskLoopDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_master_taskloop, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_master_taskloop, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9550,10 +9563,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPMaskedTaskLoopDirective(
     OMPMaskedTaskLoopDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_masked_taskloop, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_masked_taskloop, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9561,10 +9574,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPMasterTaskLoopSimdDirective(
     OMPMasterTaskLoopSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_master_taskloop_simd, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_master_taskloop_simd, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9572,10 +9585,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPMaskedTaskLoopSimdDirective(
     OMPMaskedTaskLoopSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_masked_taskloop_simd, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_masked_taskloop_simd, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9583,10 +9596,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPParallelMasterTaskLoopDirective(
     OMPParallelMasterTaskLoopDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_parallel_master_taskloop, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9594,10 +9607,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPParallelMaskedTaskLoopDirective(
     OMPParallelMaskedTaskLoopDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_parallel_masked_taskloop, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9606,10 +9619,10 @@ StmtResult
 TreeTransform<Derived>::TransformOMPParallelMasterTaskLoopSimdDirective(
     OMPParallelMasterTaskLoopSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_parallel_master_taskloop_simd, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9618,10 +9631,10 @@ StmtResult
 TreeTransform<Derived>::TransformOMPParallelMaskedTaskLoopSimdDirective(
     OMPParallelMaskedTaskLoopSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_parallel_masked_taskloop_simd, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9629,10 +9642,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPDistributeDirective(
     OMPDistributeDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_distribute, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_distribute, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9640,10 +9653,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPDistributeParallelForDirective(
     OMPDistributeParallelForDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_distribute_parallel_for, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9652,10 +9665,10 @@ StmtResult
 TreeTransform<Derived>::TransformOMPDistributeParallelForSimdDirective(
     OMPDistributeParallelForSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_distribute_parallel_for_simd, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9663,10 +9676,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPDistributeSimdDirective(
     OMPDistributeSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_distribute_simd, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_distribute_simd, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9674,10 +9687,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTargetParallelForSimdDirective(
     OMPTargetParallelForSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_target_parallel_for_simd, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9685,10 +9698,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTargetSimdDirective(
     OMPTargetSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_target_simd, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_target_simd, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9696,10 +9709,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTeamsDistributeDirective(
     OMPTeamsDistributeDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_teams_distribute, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_teams_distribute, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9707,10 +9720,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTeamsDistributeSimdDirective(
     OMPTeamsDistributeSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_teams_distribute_simd, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9718,11 +9731,11 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTeamsDistributeParallelForSimdDirective(
     OMPTeamsDistributeParallelForSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_teams_distribute_parallel_for_simd, DirName, nullptr,
       D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9730,10 +9743,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTeamsDistributeParallelForDirective(
     OMPTeamsDistributeParallelForDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_teams_distribute_parallel_for, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9741,10 +9754,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTargetTeamsDirective(
     OMPTargetTeamsDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_target_teams, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_target_teams, DirName, nullptr, D->getBeginLoc());
   auto Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9752,10 +9765,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTargetTeamsDistributeDirective(
     OMPTargetTeamsDistributeDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_target_teams_distribute, DirName, nullptr, D->getBeginLoc());
   auto Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9764,11 +9777,11 @@ StmtResult
 TreeTransform<Derived>::TransformOMPTargetTeamsDistributeParallelForDirective(
     OMPTargetTeamsDistributeParallelForDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_target_teams_distribute_parallel_for, DirName, nullptr,
       D->getBeginLoc());
   auto Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9777,11 +9790,11 @@ StmtResult TreeTransform<Derived>::
     TransformOMPTargetTeamsDistributeParallelForSimdDirective(
         OMPTargetTeamsDistributeParallelForSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_target_teams_distribute_parallel_for_simd, DirName, nullptr,
       D->getBeginLoc());
   auto Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9790,10 +9803,10 @@ StmtResult
 TreeTransform<Derived>::TransformOMPTargetTeamsDistributeSimdDirective(
     OMPTargetTeamsDistributeSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_target_teams_distribute_simd, DirName, nullptr, D->getBeginLoc());
   auto Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9801,10 +9814,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPInteropDirective(OMPInteropDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_interop, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_interop, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9812,10 +9825,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPDispatchDirective(OMPDispatchDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_dispatch, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_dispatch, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9823,10 +9836,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPMaskedDirective(OMPMaskedDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_masked, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_masked, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9834,10 +9847,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPGenericLoopDirective(
     OMPGenericLoopDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_loop, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_loop, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9845,10 +9858,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTeamsGenericLoopDirective(
     OMPTeamsGenericLoopDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_teams_loop, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_teams_loop, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9856,10 +9869,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTargetTeamsGenericLoopDirective(
     OMPTargetTeamsGenericLoopDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_target_teams_loop, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_target_teams_loop, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9867,10 +9880,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPParallelGenericLoopDirective(
     OMPParallelGenericLoopDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_parallel_loop, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_parallel_loop, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9879,10 +9892,10 @@ StmtResult
 TreeTransform<Derived>::TransformOMPTargetParallelGenericLoopDirective(
     OMPTargetParallelGenericLoopDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_target_parallel_loop, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_target_parallel_loop, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -10972,7 +10985,7 @@ TreeTransform<Derived>::TransformOMPExclusiveClause(OMPExclusiveClause *C) {
 template <typename Derived>
 OMPClause *TreeTransform<Derived>::TransformOMPUsesAllocatorsClause(
     OMPUsesAllocatorsClause *C) {
-  SmallVector<Sema::UsesAllocatorsData, 16> Data;
+  SmallVector<SemaOpenMP::UsesAllocatorsData, 16> Data;
   Data.reserve(C->getNumberOfAllocators());
   for (unsigned I = 0, E = C->getNumberOfAllocators(); I < E; ++I) {
     OMPUsesAllocatorsClause::Data D = C->getAllocatorData(I);
@@ -10985,7 +10998,7 @@ OMPClause *TreeTransform<Derived>::TransformOMPUsesAllocatorsClause(
       if (AllocatorTraits.isInvalid())
         continue;
     }
-    Sema::UsesAllocatorsData &NewD = Data.emplace_back();
+    SemaOpenMP::UsesAllocatorsData &NewD = Data.emplace_back();
     NewD.Allocator = Allocator.get();
     NewD.AllocatorTraits = AllocatorTraits.get();
     NewD.LParenLoc = D.LParenLoc;
@@ -11667,7 +11680,7 @@ template <typename Derived>
 ExprResult
 TreeTransform<Derived>::TransformOMPIteratorExpr(OMPIteratorExpr *E) {
   unsigned NumIterators = E->numOfIterators();
-  SmallVector<Sema::OMPIteratorData, 4> Data(NumIterators);
+  SmallVector<SemaOpenMP::OMPIteratorData, 4> Data(NumIterators);
 
   bool ErrorFound = false;
   bool NeedToRebuild = getDerived().AlwaysRebuild();
@@ -11802,7 +11815,8 @@ TreeTransform<Derived>::TransformMemberExpr(MemberExpr *E) {
     // Skip for member expression of (this->f), rebuilt thisi->f is needed
     // for Openmp where the field need to be privatizized in the case.
     if (!(isa<CXXThisExpr>(E->getBase()) &&
-          getSema().isOpenMPRebuildMemberExpr(cast<ValueDecl>(Member)))) {
+          getSema().OpenMP().isOpenMPRebuildMemberExpr(
+              cast<ValueDecl>(Member)))) {
       // Mark it referenced in the new context regardless.
       // FIXME: this is a bit instantiation-specific.
       SemaRef.MarkMemberReferenced(E);
@@ -12802,6 +12816,19 @@ TreeTransform<Derived>::TransformCXXNewExpr(CXXNewExpr *E) {
     ArraySize = NewArraySize.get();
   }
 
+  // Per C++0x [expr.new]p5, the type being constructed may be a
+  // typedef of an array type.
+  QualType AllocType = AllocTypeInfo->getType();
+  if (ArraySize) {
+    if (const ConstantArrayType *Array =
+            SemaRef.Context.getAsConstantArrayType(AllocType)) {
+      ArraySize = IntegerLiteral::Create(SemaRef.Context, Array->getSize(),
+                                         SemaRef.Context.getSizeType(),
+                                         E->getBeginLoc());
+      AllocType = Array->getElementType();
+    }
+  }
+
   // Transform the placement arguments (if any).
   bool ArgumentChanged = false;
   SmallVector<Expr*, 8> PlacementArgs;
@@ -12863,7 +12890,6 @@ TreeTransform<Derived>::TransformCXXNewExpr(CXXNewExpr *E) {
     return E;
   }
 
-  QualType AllocType = AllocTypeInfo->getType();
   if (!ArraySize) {
     // If no array size was specified, but the new expression was
     // instantiated with an array type (e.g., "new T" where T is
diff --git a/clang/lib/Serialization/ASTReader.cpp b/clang/lib/Serialization/ASTReader.cpp
index 8c4b460970ad..f47d540ea4b8 100644
--- a/clang/lib/Serialization/ASTReader.cpp
+++ b/clang/lib/Serialization/ASTReader.cpp
@@ -915,10 +915,9 @@ ASTSelectorLookupTrait::ReadKey(const unsigned char* d, unsigned) {
   using namespace llvm::support;
 
   SelectorTable &SelTable = Reader.getContext().Selectors;
-  unsigned N =
-      endian::readNext<uint16_t, llvm::endianness::little, unaligned>(d);
+  unsigned N = endian::readNext<uint16_t, llvm::endianness::little>(d);
   const IdentifierInfo *FirstII = Reader.getLocalIdentifier(
-      F, endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d));
+      F, endian::readNext<uint32_t, llvm::endianness::little>(d));
   if (N == 0)
     return SelTable.getNullarySelector(FirstII);
   else if (N == 1)
@@ -928,7 +927,7 @@ ASTSelectorLookupTrait::ReadKey(const unsigned char* d, unsigned) {
   Args.push_back(FirstII);
   for (unsigned I = 1; I != N; ++I)
     Args.push_back(Reader.getLocalIdentifier(
-        F, endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d)));
+        F, endian::readNext<uint32_t, llvm::endianness::little>(d)));
 
   return SelTable.getSelector(N, Args.data());
 }
@@ -941,11 +940,11 @@ ASTSelectorLookupTrait::ReadData(Selector, const unsigned char* d,
   data_type Result;
 
   Result.ID = Reader.getGlobalSelectorID(
-      F, endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d));
+      F, endian::readNext<uint32_t, llvm::endianness::little>(d));
   unsigned FullInstanceBits =
-      endian::readNext<uint16_t, llvm::endianness::little, unaligned>(d);
+      endian::readNext<uint16_t, llvm::endianness::little>(d);
   unsigned FullFactoryBits =
-      endian::readNext<uint16_t, llvm::endianness::little, unaligned>(d);
+      endian::readNext<uint16_t, llvm::endianness::little>(d);
   Result.InstanceBits = FullInstanceBits & 0x3;
   Result.InstanceHasMoreThanOneDecl = (FullInstanceBits >> 2) & 0x1;
   Result.FactoryBits = FullFactoryBits & 0x3;
@@ -956,16 +955,14 @@ ASTSelectorLookupTrait::ReadData(Selector, const unsigned char* d,
   // Load instance methods
   for (unsigned I = 0; I != NumInstanceMethods; ++I) {
     if (ObjCMethodDecl *Method = Reader.GetLocalDeclAs<ObjCMethodDecl>(
-            F,
-            endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d)))
+            F, endian::readNext<uint32_t, llvm::endianness::little>(d)))
       Result.Instance.push_back(Method);
   }
 
   // Load factory methods
   for (unsigned I = 0; I != NumFactoryMethods; ++I) {
     if (ObjCMethodDecl *Method = Reader.GetLocalDeclAs<ObjCMethodDecl>(
-            F,
-            endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d)))
+            F, endian::readNext<uint32_t, llvm::endianness::little>(d)))
       Result.Factory.push_back(Method);
   }
 
@@ -1009,8 +1006,7 @@ static bool readBit(unsigned &Bits) {
 IdentID ASTIdentifierLookupTrait::ReadIdentifierID(const unsigned char *d) {
   using namespace llvm::support;
 
-  unsigned RawID =
-      endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d);
+  unsigned RawID = endian::readNext<uint32_t, llvm::endianness::little>(d);
   return Reader.getGlobalIdentifierID(F, RawID >> 1);
 }
 
@@ -1028,8 +1024,7 @@ IdentifierInfo *ASTIdentifierLookupTrait::ReadData(const internal_key_type& k,
                                                    unsigned DataLen) {
   using namespace llvm::support;
 
-  unsigned RawID =
-      endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d);
+  unsigned RawID = endian::readNext<uint32_t, llvm::endianness::little>(d);
   bool IsInteresting = RawID & 0x01;
 
   // Wipe out the "is interesting" bit.
@@ -1053,9 +1048,8 @@ IdentifierInfo *ASTIdentifierLookupTrait::ReadData(const internal_key_type& k,
   }
 
   unsigned ObjCOrBuiltinID =
-      endian::readNext<uint16_t, llvm::endianness::little, unaligned>(d);
-  unsigned Bits =
-      endian::readNext<uint16_t, llvm::endianness::little, unaligned>(d);
+      endian::readNext<uint16_t, llvm::endianness::little>(d);
+  unsigned Bits = endian::readNext<uint16_t, llvm::endianness::little>(d);
   bool CPlusPlusOperatorKeyword = readBit(Bits);
   bool HasRevertedTokenIDToIdentifier = readBit(Bits);
   bool Poisoned = readBit(Bits);
@@ -1084,7 +1078,7 @@ IdentifierInfo *ASTIdentifierLookupTrait::ReadData(const internal_key_type& k,
   // definition.
   if (HadMacroDefinition) {
     uint32_t MacroDirectivesOffset =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d);
+        endian::readNext<uint32_t, llvm::endianness::little>(d);
     DataLen -= 4;
 
     Reader.addPendingMacro(II, &F, MacroDirectivesOffset);
@@ -1098,8 +1092,7 @@ IdentifierInfo *ASTIdentifierLookupTrait::ReadData(const internal_key_type& k,
     SmallVector<uint32_t, 4> DeclIDs;
     for (; DataLen > 0; DataLen -= 4)
       DeclIDs.push_back(Reader.getGlobalDeclID(
-          F,
-          endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d)));
+          F, endian::readNext<uint32_t, llvm::endianness::little>(d)));
     Reader.SetGloballyVisibleDecls(II, DeclIDs);
   }
 
@@ -1169,7 +1162,7 @@ ASTDeclContextNameLookupTrait::ReadFileRef(const unsigned char *&d) {
   using namespace llvm::support;
 
   uint32_t ModuleFileID =
-      endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d);
+      endian::readNext<uint32_t, llvm::endianness::little>(d);
   return Reader.getLocalModuleFile(F, ModuleFileID);
 }
 
@@ -1189,18 +1182,15 @@ ASTDeclContextNameLookupTrait::ReadKey(const unsigned char *d, unsigned) {
   case DeclarationName::CXXLiteralOperatorName:
   case DeclarationName::CXXDeductionGuideName:
     Data = (uint64_t)Reader.getLocalIdentifier(
-        F, endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d));
+        F, endian::readNext<uint32_t, llvm::endianness::little>(d));
     break;
   case DeclarationName::ObjCZeroArgSelector:
   case DeclarationName::ObjCOneArgSelector:
   case DeclarationName::ObjCMultiArgSelector:
-    Data =
-        (uint64_t)Reader
-            .getLocalSelector(
-                F,
-                endian::readNext<uint32_t, llvm::endianness::little, unaligned>(
-                    d))
-            .getAsOpaquePtr();
+    Data = (uint64_t)Reader
+               .getLocalSelector(
+                   F, endian::readNext<uint32_t, llvm::endianness::little>(d))
+               .getAsOpaquePtr();
     break;
   case DeclarationName::CXXOperatorName:
     Data = *d++; // OverloadedOperatorKind
@@ -1223,8 +1213,7 @@ void ASTDeclContextNameLookupTrait::ReadDataInto(internal_key_type,
   using namespace llvm::support;
 
   for (unsigned NumDecls = DataLen / 4; NumDecls; --NumDecls) {
-    uint32_t LocalID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d);
+    uint32_t LocalID = endian::readNext<uint32_t, llvm::endianness::little>(d);
     Val.insert(Reader.getGlobalDeclID(F, LocalID));
   }
 }
@@ -2033,10 +2022,9 @@ HeaderFileInfoTrait::ReadKey(const unsigned char *d, unsigned) {
   using namespace llvm::support;
 
   internal_key_type ikey;
-  ikey.Size =
-      off_t(endian::readNext<uint64_t, llvm::endianness::little, unaligned>(d));
-  ikey.ModTime = time_t(
-      endian::readNext<uint64_t, llvm::endianness::little, unaligned>(d));
+  ikey.Size = off_t(endian::readNext<uint64_t, llvm::endianness::little>(d));
+  ikey.ModTime =
+      time_t(endian::readNext<uint64_t, llvm::endianness::little>(d));
   ikey.Filename = (const char *)d;
   ikey.Imported = true;
   return ikey;
@@ -2064,9 +2052,9 @@ HeaderFileInfoTrait::ReadData(internal_key_ref key, const unsigned char *d,
   HFI.DirInfo = (Flags >> 1) & 0x07;
   HFI.IndexHeaderMapHeader = Flags & 0x01;
   HFI.ControllingMacroID = Reader.getGlobalIdentifierID(
-      M, endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d));
+      M, endian::readNext<uint32_t, llvm::endianness::little>(d));
   if (unsigned FrameworkOffset =
-          endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d)) {
+          endian::readNext<uint32_t, llvm::endianness::little>(d)) {
     // The framework offset is 1 greater than the actual offset,
     // since 0 is used as an indicator for "no framework name".
     StringRef FrameworkName(FrameworkStrings + FrameworkOffset - 1);
@@ -2077,7 +2065,7 @@ HeaderFileInfoTrait::ReadData(internal_key_ref key, const unsigned char *d,
          "Wrong data length in HeaderFileInfo deserialization");
   while (d != End) {
     uint32_t LocalSMID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d);
+        endian::readNext<uint32_t, llvm::endianness::little>(d);
     auto HeaderRole = static_cast<ModuleMap::ModuleHeaderRole>(LocalSMID & 7);
     LocalSMID >>= 3;
 
@@ -4085,9 +4073,8 @@ void ASTReader::ReadModuleOffsetMap(ModuleFile &F) const {
     // how it goes...
     using namespace llvm::support;
     ModuleKind Kind = static_cast<ModuleKind>(
-        endian::readNext<uint8_t, llvm::endianness::little, unaligned>(Data));
-    uint16_t Len =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint8_t, llvm::endianness::little>(Data));
+    uint16_t Len = endian::readNext<uint16_t, llvm::endianness::little>(Data);
     StringRef Name = StringRef((const char*)Data, Len);
     Data += Len;
     ModuleFile *OM = (Kind == MK_PrebuiltModule || Kind == MK_ExplicitModule ||
@@ -4103,21 +4090,21 @@ void ASTReader::ReadModuleOffsetMap(ModuleFile &F) const {
     }
 
     SourceLocation::UIntTy SLocOffset =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint32_t, llvm::endianness::little>(Data);
     uint32_t IdentifierIDOffset =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint32_t, llvm::endianness::little>(Data);
     uint32_t MacroIDOffset =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint32_t, llvm::endianness::little>(Data);
     uint32_t PreprocessedEntityIDOffset =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint32_t, llvm::endianness::little>(Data);
     uint32_t SubmoduleIDOffset =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint32_t, llvm::endianness::little>(Data);
     uint32_t SelectorIDOffset =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint32_t, llvm::endianness::little>(Data);
     uint32_t DeclIDOffset =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint32_t, llvm::endianness::little>(Data);
     uint32_t TypeIndexOffset =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint32_t, llvm::endianness::little>(Data);
 
     auto mapOffset = [&](uint32_t Offset, uint32_t BaseOffset,
                          RemapBuilder &Remap) {
@@ -9798,7 +9785,7 @@ void ASTReader::finishPendingActions() {
             !NonConstDefn->isLateTemplateParsed() &&
             // We only perform ODR checks for decls not in the explicit
             // global module fragment.
-            !FD->shouldSkipCheckingODR() &&
+            !shouldSkipCheckingODR(FD) &&
             FD->getODRHash() != NonConstDefn->getODRHash()) {
           if (!isa<CXXMethodDecl>(FD)) {
             PendingFunctionOdrMergeFailures[FD].push_back(NonConstDefn);
diff --git a/clang/lib/Serialization/ASTReaderDecl.cpp b/clang/lib/Serialization/ASTReaderDecl.cpp
index e4b6a75c118b..74d40f7da34c 100644
--- a/clang/lib/Serialization/ASTReaderDecl.cpp
+++ b/clang/lib/Serialization/ASTReaderDecl.cpp
@@ -826,7 +826,7 @@ void ASTDeclReader::VisitEnumDecl(EnumDecl *ED) {
       Reader.mergeDefinitionVisibility(OldDef, ED);
       // We don't want to check the ODR hash value for declarations from global
       // module fragment.
-      if (!ED->shouldSkipCheckingODR() &&
+      if (!shouldSkipCheckingODR(ED) &&
           OldDef->getODRHash() != ED->getODRHash())
         Reader.PendingEnumOdrMergeFailures[OldDef].push_back(ED);
     } else {
@@ -868,7 +868,7 @@ void ASTDeclReader::VisitRecordDecl(RecordDecl *RD) {
   VisitRecordDeclImpl(RD);
   // We should only reach here if we're in C/Objective-C. There is no
   // global module fragment.
-  assert(!RD->shouldSkipCheckingODR());
+  assert(!shouldSkipCheckingODR(RD));
   RD->setODRHash(Record.readInt());
 
   // Maintain the invariant of a redeclaration chain containing only
@@ -2155,7 +2155,7 @@ void ASTDeclReader::MergeDefinitionData(
   }
 
   // We don't want to check ODR for decls in the global module fragment.
-  if (MergeDD.Definition->shouldSkipCheckingODR())
+  if (shouldSkipCheckingODR(MergeDD.Definition))
     return;
 
   if (D->getODRHash() != MergeDD.ODRHash) {
@@ -3530,7 +3530,7 @@ ASTDeclReader::FindExistingResult ASTDeclReader::findExisting(NamedDecl *D) {
   // same template specialization into the same CXXRecordDecl.
   auto MergedDCIt = Reader.MergedDeclContexts.find(D->getLexicalDeclContext());
   if (MergedDCIt != Reader.MergedDeclContexts.end() &&
-      !D->shouldSkipCheckingODR() && MergedDCIt->second == D->getDeclContext())
+      !shouldSkipCheckingODR(D) && MergedDCIt->second == D->getDeclContext())
     Reader.PendingOdrMergeChecks.push_back(D);
 
   return FindExistingResult(Reader, D, /*Existing=*/nullptr,
diff --git a/clang/lib/Serialization/ASTWriter.cpp b/clang/lib/Serialization/ASTWriter.cpp
index 85b7fd5535a1..ce6fa1feb1ee 100644
--- a/clang/lib/Serialization/ASTWriter.cpp
+++ b/clang/lib/Serialization/ASTWriter.cpp
@@ -6188,7 +6188,7 @@ void ASTRecordWriter::AddCXXDefinitionData(const CXXRecordDecl *D) {
 
   BitsPacker DefinitionBits;
 
-  bool ShouldSkipCheckingODR = D->shouldSkipCheckingODR();
+  bool ShouldSkipCheckingODR = shouldSkipCheckingODR(D);
   DefinitionBits.addBit(ShouldSkipCheckingODR);
 
 #define FIELD(Name, Width, Merge)                                              \
diff --git a/clang/lib/Serialization/ASTWriterDecl.cpp b/clang/lib/Serialization/ASTWriterDecl.cpp
index 276b6257f1d8..d0d49bcdf991 100644
--- a/clang/lib/Serialization/ASTWriterDecl.cpp
+++ b/clang/lib/Serialization/ASTWriterDecl.cpp
@@ -526,7 +526,7 @@ void ASTDeclWriter::VisitEnumDecl(EnumDecl *D) {
   BitsPacker EnumDeclBits;
   EnumDeclBits.addBits(D->getNumPositiveBits(), /*BitWidth=*/8);
   EnumDeclBits.addBits(D->getNumNegativeBits(), /*BitWidth=*/8);
-  bool ShouldSkipCheckingODR = D->shouldSkipCheckingODR();
+  bool ShouldSkipCheckingODR = shouldSkipCheckingODR(D);
   EnumDeclBits.addBit(ShouldSkipCheckingODR);
   EnumDeclBits.addBit(D->isScoped());
   EnumDeclBits.addBit(D->isScopedUsingClassTag());
@@ -552,7 +552,7 @@ void ASTDeclWriter::VisitEnumDecl(EnumDecl *D) {
       !D->isTopLevelDeclInObjCContainer() &&
       !CXXRecordDecl::classofKind(D->getKind()) &&
       !D->getIntegerTypeSourceInfo() && !D->getMemberSpecializationInfo() &&
-      !needsAnonymousDeclarationNumber(D) && !D->shouldSkipCheckingODR() &&
+      !needsAnonymousDeclarationNumber(D) && !shouldSkipCheckingODR(D) &&
       D->getDeclName().getNameKind() == DeclarationName::Identifier)
     AbbrevToUse = Writer.getDeclEnumAbbrev();
 
@@ -718,7 +718,7 @@ void ASTDeclWriter::VisitFunctionDecl(FunctionDecl *D) {
   // FIXME: stable encoding
   FunctionDeclBits.addBits(llvm::to_underlying(D->getLinkageInternal()), 3);
   FunctionDeclBits.addBits((uint32_t)D->getStorageClass(), /*BitWidth=*/3);
-  bool ShouldSkipCheckingODR = D->shouldSkipCheckingODR();
+  bool ShouldSkipCheckingODR = shouldSkipCheckingODR(D);
   FunctionDeclBits.addBit(ShouldSkipCheckingODR);
   FunctionDeclBits.addBit(D->isInlineSpecified());
   FunctionDeclBits.addBit(D->isInlined());
@@ -1559,7 +1559,7 @@ void ASTDeclWriter::VisitCXXMethodDecl(CXXMethodDecl *D) {
       D->getFirstDecl() == D->getMostRecentDecl() && !D->isInvalidDecl() &&
       !D->hasAttrs() && !D->isTopLevelDeclInObjCContainer() &&
       D->getDeclName().getNameKind() == DeclarationName::Identifier &&
-      !D->shouldSkipCheckingODR() && !D->hasExtInfo() &&
+      !shouldSkipCheckingODR(D) && !D->hasExtInfo() &&
       !D->isExplicitlyDefaulted()) {
     if (D->getTemplatedKind() == FunctionDecl::TK_NonTemplate ||
         D->getTemplatedKind() == FunctionDecl::TK_FunctionTemplate ||
diff --git a/clang/lib/Serialization/GlobalModuleIndex.cpp b/clang/lib/Serialization/GlobalModuleIndex.cpp
index dd4fc3e00905..8ff10f6a8621 100644
--- a/clang/lib/Serialization/GlobalModuleIndex.cpp
+++ b/clang/lib/Serialization/GlobalModuleIndex.cpp
@@ -89,10 +89,8 @@ public:
   static std::pair<unsigned, unsigned>
   ReadKeyDataLength(const unsigned char*& d) {
     using namespace llvm::support;
-    unsigned KeyLen =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(d);
-    unsigned DataLen =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(d);
+    unsigned KeyLen = endian::readNext<uint16_t, llvm::endianness::little>(d);
+    unsigned DataLen = endian::readNext<uint16_t, llvm::endianness::little>(d);
     return std::make_pair(KeyLen, DataLen);
   }
 
@@ -113,8 +111,7 @@ public:
 
     data_type Result;
     while (DataLen > 0) {
-      unsigned ID =
-          endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d);
+      unsigned ID = endian::readNext<uint32_t, llvm::endianness::little>(d);
       Result.push_back(ID);
       DataLen -= 4;
     }
@@ -514,8 +511,7 @@ namespace {
       // The first bit indicates whether this identifier is interesting.
       // That's all we care about.
       using namespace llvm::support;
-      unsigned RawID =
-          endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d);
+      unsigned RawID = endian::readNext<uint32_t, llvm::endianness::little>(d);
       bool IsInteresting = RawID & 0x01;
       return std::make_pair(k, IsInteresting);
     }
diff --git a/clang/lib/Serialization/MultiOnDiskHashTable.h b/clang/lib/Serialization/MultiOnDiskHashTable.h
index 2402a628b512..a0d75ec3a9e7 100644
--- a/clang/lib/Serialization/MultiOnDiskHashTable.h
+++ b/clang/lib/Serialization/MultiOnDiskHashTable.h
@@ -200,11 +200,11 @@ public:
     storage_type Ptr = Data;
 
     uint32_t BucketOffset =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Ptr);
+        endian::readNext<uint32_t, llvm::endianness::little>(Ptr);
 
     // Read the list of overridden files.
     uint32_t NumFiles =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Ptr);
+        endian::readNext<uint32_t, llvm::endianness::little>(Ptr);
     // FIXME: Add a reserve() to TinyPtrVector so that we don't need to make
     // an additional copy.
     llvm::SmallVector<file_type, 16> OverriddenFiles;
diff --git a/clang/lib/StaticAnalyzer/Checkers/BuiltinFunctionChecker.cpp b/clang/lib/StaticAnalyzer/Checkers/BuiltinFunctionChecker.cpp
index 01e46fa8591c..1a75d7b52ad6 100644
--- a/clang/lib/StaticAnalyzer/Checkers/BuiltinFunctionChecker.cpp
+++ b/clang/lib/StaticAnalyzer/Checkers/BuiltinFunctionChecker.cpp
@@ -6,7 +6,11 @@
 //
 //===----------------------------------------------------------------------===//
 //
-// This checker evaluates clang builtin functions.
+// This checker evaluates "standalone" clang builtin functions that are not
+// just special-cased variants of well-known non-builtin functions.
+// Builtin functions like __builtin_memcpy and __builtin_alloca should be
+// evaluated by the same checker that handles their non-builtin variant to
+// ensure that the two variants are handled consistently.
 //
 //===----------------------------------------------------------------------===//
 
@@ -80,25 +84,6 @@ bool BuiltinFunctionChecker::evalCall(const CallEvent &Call,
     return true;
   }
 
-  case Builtin::BI__builtin_alloca_with_align:
-  case Builtin::BI__builtin_alloca: {
-    SValBuilder &SVB = C.getSValBuilder();
-    const loc::MemRegionVal R =
-        SVB.getAllocaRegionVal(CE, C.getLocationContext(), C.blockCount());
-
-    // Set the extent of the region in bytes. This enables us to use the SVal
-    // of the argument directly. If we saved the extent in bits, it'd be more
-    // difficult to reason about values like symbol*8.
-    auto Size = Call.getArgSVal(0);
-    if (auto DefSize = Size.getAs<DefinedOrUnknownSVal>()) {
-      // This `getAs()` is mostly paranoia, because core.CallAndMessage reports
-      // undefined function arguments (unless it's disabled somehow).
-      state = setDynamicExtent(state, R.getRegion(), *DefSize, SVB);
-    }
-    C.addTransition(state->BindExpr(CE, LCtx, R));
-    return true;
-  }
-
   case Builtin::BI__builtin_dynamic_object_size:
   case Builtin::BI__builtin_object_size:
   case Builtin::BI__builtin_constant_p: {
diff --git a/clang/lib/StaticAnalyzer/Checkers/MallocChecker.cpp b/clang/lib/StaticAnalyzer/Checkers/MallocChecker.cpp
index 88fb42b6625a..11651fd491f7 100644
--- a/clang/lib/StaticAnalyzer/Checkers/MallocChecker.cpp
+++ b/clang/lib/StaticAnalyzer/Checkers/MallocChecker.cpp
@@ -401,10 +401,11 @@ private:
   };
 
   const CallDescriptionMap<CheckFn> FreeingMemFnMap{
-      {{{"free"}, 1}, &MallocChecker::checkFree},
-      {{{"if_freenameindex"}, 1}, &MallocChecker::checkIfFreeNameIndex},
-      {{{"kfree"}, 1}, &MallocChecker::checkFree},
-      {{{"g_free"}, 1}, &MallocChecker::checkFree},
+      {{CDM::CLibrary, {"free"}, 1}, &MallocChecker::checkFree},
+      {{CDM::CLibrary, {"if_freenameindex"}, 1},
+       &MallocChecker::checkIfFreeNameIndex},
+      {{CDM::CLibrary, {"kfree"}, 1}, &MallocChecker::checkFree},
+      {{CDM::CLibrary, {"g_free"}, 1}, &MallocChecker::checkFree},
   };
 
   bool isFreeingCall(const CallEvent &Call) const;
@@ -413,41 +414,46 @@ private:
   friend class NoOwnershipChangeVisitor;
 
   CallDescriptionMap<CheckFn> AllocatingMemFnMap{
-      {{{"alloca"}, 1}, &MallocChecker::checkAlloca},
-      {{{"_alloca"}, 1}, &MallocChecker::checkAlloca},
-      {{{"malloc"}, 1}, &MallocChecker::checkBasicAlloc},
-      {{{"malloc"}, 3}, &MallocChecker::checkKernelMalloc},
-      {{{"calloc"}, 2}, &MallocChecker::checkCalloc},
-      {{{"valloc"}, 1}, &MallocChecker::checkBasicAlloc},
+      {{CDM::CLibrary, {"alloca"}, 1}, &MallocChecker::checkAlloca},
+      {{CDM::CLibrary, {"_alloca"}, 1}, &MallocChecker::checkAlloca},
+      // The line for "alloca" also covers "__builtin_alloca", but the
+      // _with_align variant must be listed separately because it takes an
+      // extra argument:
+      {{CDM::CLibrary, {"__builtin_alloca_with_align"}, 2},
+       &MallocChecker::checkAlloca},
+      {{CDM::CLibrary, {"malloc"}, 1}, &MallocChecker::checkBasicAlloc},
+      {{CDM::CLibrary, {"malloc"}, 3}, &MallocChecker::checkKernelMalloc},
+      {{CDM::CLibrary, {"calloc"}, 2}, &MallocChecker::checkCalloc},
+      {{CDM::CLibrary, {"valloc"}, 1}, &MallocChecker::checkBasicAlloc},
       {{CDM::CLibrary, {"strndup"}, 2}, &MallocChecker::checkStrdup},
       {{CDM::CLibrary, {"strdup"}, 1}, &MallocChecker::checkStrdup},
-      {{{"_strdup"}, 1}, &MallocChecker::checkStrdup},
-      {{{"kmalloc"}, 2}, &MallocChecker::checkKernelMalloc},
-      {{{"if_nameindex"}, 1}, &MallocChecker::checkIfNameIndex},
+      {{CDM::CLibrary, {"_strdup"}, 1}, &MallocChecker::checkStrdup},
+      {{CDM::CLibrary, {"kmalloc"}, 2}, &MallocChecker::checkKernelMalloc},
+      {{CDM::CLibrary, {"if_nameindex"}, 1}, &MallocChecker::checkIfNameIndex},
       {{CDM::CLibrary, {"wcsdup"}, 1}, &MallocChecker::checkStrdup},
       {{CDM::CLibrary, {"_wcsdup"}, 1}, &MallocChecker::checkStrdup},
-      {{{"g_malloc"}, 1}, &MallocChecker::checkBasicAlloc},
-      {{{"g_malloc0"}, 1}, &MallocChecker::checkGMalloc0},
-      {{{"g_try_malloc"}, 1}, &MallocChecker::checkBasicAlloc},
-      {{{"g_try_malloc0"}, 1}, &MallocChecker::checkGMalloc0},
-      {{{"g_memdup"}, 2}, &MallocChecker::checkGMemdup},
-      {{{"g_malloc_n"}, 2}, &MallocChecker::checkGMallocN},
-      {{{"g_malloc0_n"}, 2}, &MallocChecker::checkGMallocN0},
-      {{{"g_try_malloc_n"}, 2}, &MallocChecker::checkGMallocN},
-      {{{"g_try_malloc0_n"}, 2}, &MallocChecker::checkGMallocN0},
+      {{CDM::CLibrary, {"g_malloc"}, 1}, &MallocChecker::checkBasicAlloc},
+      {{CDM::CLibrary, {"g_malloc0"}, 1}, &MallocChecker::checkGMalloc0},
+      {{CDM::CLibrary, {"g_try_malloc"}, 1}, &MallocChecker::checkBasicAlloc},
+      {{CDM::CLibrary, {"g_try_malloc0"}, 1}, &MallocChecker::checkGMalloc0},
+      {{CDM::CLibrary, {"g_memdup"}, 2}, &MallocChecker::checkGMemdup},
+      {{CDM::CLibrary, {"g_malloc_n"}, 2}, &MallocChecker::checkGMallocN},
+      {{CDM::CLibrary, {"g_malloc0_n"}, 2}, &MallocChecker::checkGMallocN0},
+      {{CDM::CLibrary, {"g_try_malloc_n"}, 2}, &MallocChecker::checkGMallocN},
+      {{CDM::CLibrary, {"g_try_malloc0_n"}, 2}, &MallocChecker::checkGMallocN0},
   };
 
   CallDescriptionMap<CheckFn> ReallocatingMemFnMap{
-      {{{"realloc"}, 2},
+      {{CDM::CLibrary, {"realloc"}, 2},
        std::bind(&MallocChecker::checkRealloc, _1, _2, _3, false)},
-      {{{"reallocf"}, 2},
+      {{CDM::CLibrary, {"reallocf"}, 2},
        std::bind(&MallocChecker::checkRealloc, _1, _2, _3, true)},
-      {{{"g_realloc"}, 2},
+      {{CDM::CLibrary, {"g_realloc"}, 2},
        std::bind(&MallocChecker::checkRealloc, _1, _2, _3, false)},
-      {{{"g_try_realloc"}, 2},
+      {{CDM::CLibrary, {"g_try_realloc"}, 2},
        std::bind(&MallocChecker::checkRealloc, _1, _2, _3, false)},
-      {{{"g_realloc_n"}, 3}, &MallocChecker::checkReallocN},
-      {{{"g_try_realloc_n"}, 3}, &MallocChecker::checkReallocN},
+      {{CDM::CLibrary, {"g_realloc_n"}, 3}, &MallocChecker::checkReallocN},
+      {{CDM::CLibrary, {"g_try_realloc_n"}, 3}, &MallocChecker::checkReallocN},
 
       // NOTE: the following CallDescription also matches the C++ standard
       // library function std::getline(); the callback will filter it out.
@@ -1259,9 +1265,6 @@ static bool isStandardRealloc(const CallEvent &Call) {
   assert(FD);
   ASTContext &AC = FD->getASTContext();
 
-  if (isa<CXXMethodDecl>(FD))
-    return false;
-
   return FD->getDeclaredReturnType().getDesugaredType(AC) == AC.VoidPtrTy &&
          FD->getParamDecl(0)->getType().getDesugaredType(AC) == AC.VoidPtrTy &&
          FD->getParamDecl(1)->getType().getDesugaredType(AC) ==
@@ -1273,9 +1276,6 @@ static bool isGRealloc(const CallEvent &Call) {
   assert(FD);
   ASTContext &AC = FD->getASTContext();
 
-  if (isa<CXXMethodDecl>(FD))
-    return false;
-
   return FD->getDeclaredReturnType().getDesugaredType(AC) == AC.VoidPtrTy &&
          FD->getParamDecl(0)->getType().getDesugaredType(AC) == AC.VoidPtrTy &&
          FD->getParamDecl(1)->getType().getDesugaredType(AC) ==
@@ -1284,14 +1284,14 @@ static bool isGRealloc(const CallEvent &Call) {
 
 void MallocChecker::checkRealloc(const CallEvent &Call, CheckerContext &C,
                                  bool ShouldFreeOnFail) const {
-  // HACK: CallDescription currently recognizes non-standard realloc functions
-  // as standard because it doesn't check the type, or wether its a non-method
-  // function. This should be solved by making CallDescription smarter.
-  // Mind that this came from a bug report, and all other functions suffer from
-  // this.
-  // https://bugs.llvm.org/show_bug.cgi?id=46253
+  // Ignore calls to functions whose type does not match the expected type of
+  // either the standard realloc or g_realloc from GLib.
+  // FIXME: Should we perform this kind of checking consistently for each
+  // function? If yes, then perhaps extend the `CallDescription` interface to
+  // handle this.
   if (!isStandardRealloc(Call) && !isGRealloc(Call))
     return;
+
   ProgramStateRef State = C.getState();
   State = ReallocMemAux(C, Call, ShouldFreeOnFail, State, AF_Malloc);
   State = ProcessZeroAllocCheck(Call, 1, State);
@@ -1842,9 +1842,18 @@ static ProgramStateRef MallocUpdateRefState(CheckerContext &C, const Expr *E,
     return nullptr;
 
   SymbolRef Sym = RetVal->getAsLocSymbol();
+
   // This is a return value of a function that was not inlined, such as malloc()
   // or new(). We've checked that in the caller. Therefore, it must be a symbol.
   assert(Sym);
+  // FIXME: In theory this assertion should fail for `alloca()` calls (because
+  // `AllocaRegion`s are not symbolic); but in practice this does not happen.
+  // As the current code appears to work correctly, I'm not touching this issue
+  // now, but it would be good to investigate and clarify this.
+  // Also note that perhaps the special `AllocaRegion` should be replaced by
+  // `SymbolicRegion` (or turned into a subclass of `SymbolicRegion`) to enable
+  // proper tracking of memory allocated by `alloca()` -- and after that change
+  // this assertion would become valid again.
 
   // Set the symbol's state to Allocated.
   return State->set<RegionState>(Sym, RefState::getAllocated(Family, E));
diff --git a/clang/test/AST/Interp/builtin-align-cxx.cpp b/clang/test/AST/Interp/builtin-align-cxx.cpp
new file mode 100644
index 000000000000..62d73dba929b
--- /dev/null
+++ b/clang/test/AST/Interp/builtin-align-cxx.cpp
@@ -0,0 +1,258 @@
+// C++-specific checks for the alignment builtins
+// RUN: %clang_cc1 -triple=x86_64-unknown-unknown -std=c++11 %s -fsyntax-only -verify=expected,both -fexperimental-new-constant-interpreter
+// RUN: %clang_cc1 -triple=x86_64-unknown-unknown -std=c++11 %s -fsyntax-only -verify=ref,both
+
+
+/// This is just a copy of the one from test/SemaCXX/ with some of the
+/// diagnostic output adapted.
+/// Also, align32array has an initializer now, which means it's not just
+/// a dummy pointer for us and we do actually have type information for it.
+/// In the future, we need to retain type information for dummy pointers as
+/// well, so here is a test that will break once we do that:
+namespace {
+  _Alignas(32) char heh[4];
+  static_assert(!__builtin_is_aligned(&heh[1], 4), ""); // expected-error {{failed}}
+}
+
+
+// Check that we don't crash when using dependent types in __builtin_align:
+template <typename a, a b>
+void *c(void *d) { // both-note{{candidate template ignored}}
+  return __builtin_align_down(d, b);
+}
+
+struct x {};
+x foo;
+void test(void *value) {
+  c<int, 16>(value);
+  c<struct x, foo>(value); // both-error{{no matching function for call to 'c'}}
+}
+
+template <typename T, long Alignment, long ArraySize = 16>
+void test_templated_arguments() {
+  T array[ArraySize];                                                           // both-error{{variable has incomplete type 'fwddecl'}}
+  static_assert(__is_same(decltype(__builtin_align_up(array, Alignment)), T *), // both-error{{requested alignment is not a power of 2}}
+                "return type should be the decayed array type");
+  static_assert(__is_same(decltype(__builtin_align_down(array, Alignment)), T *),
+                "return type should be the decayed array type");
+  static_assert(__is_same(decltype(__builtin_is_aligned(array, Alignment)), bool),
+                "return type should be bool");
+  T *x1 = __builtin_align_up(array, Alignment);
+  T *x2 = __builtin_align_down(array, Alignment);
+  bool x3 = __builtin_align_up(array, Alignment);
+}
+
+void test() {
+  test_templated_arguments<int, 32>(); // fine
+  test_templated_arguments<struct fwddecl, 16>();
+  // both-note@-1{{in instantiation of function template specialization 'test_templated_arguments<fwddecl, 16L, 16L>'}}
+  // both-note@-2{{forward declaration of 'fwddecl'}}
+  test_templated_arguments<int, 7>(); // invalid alignment value
+  // both-note@-1{{in instantiation of function template specialization 'test_templated_arguments<int, 7L, 16L>'}}
+}
+
+template <typename T, long ArraySize>
+void test_incorrect_alignment_without_instatiation(T value) {
+  int array[32];
+  static_assert(__is_same(decltype(__builtin_align_up(array, 31)), int *), // both-error{{requested alignment is not a power of 2}}
+                "return type should be the decayed array type");
+  static_assert(__is_same(decltype(__builtin_align_down(array, 7)), int *), // both-error{{requested alignment is not a power of 2}}
+                "return type should be the decayed array type");
+  static_assert(__is_same(decltype(__builtin_is_aligned(array, -1)), bool), // both-error{{requested alignment must be 1 or greater}}
+                "return type should be bool");
+  __builtin_align_up(array);       // both-error{{too few arguments to function call, expected 2, have 1}}
+  __builtin_align_up(array, 31);   // both-error{{requested alignment is not a power of 2}}
+  __builtin_align_down(array, 31); // both-error{{requested alignment is not a power of 2}}
+  __builtin_align_up(array, 31);   // both-error{{requested alignment is not a power of 2}}
+  __builtin_align_up(value, 31);   // This shouldn't want since the type is dependent
+  __builtin_align_up(value);       // Same here
+
+  __builtin_align_up(array, sizeof(sizeof(value)) - 1); // both-error{{requested alignment is not a power of 2}}
+  __builtin_align_up(array, value); // no diagnostic as the alignment is value dependent.
+  (void)__builtin_align_up(array, ArraySize); // The same above here
+}
+
+// The original fix for the issue above broke some legitimate code.
+// Here is a regression test:
+typedef __SIZE_TYPE__ size_t;
+void *allocate_impl(size_t size);
+template <typename T>
+T *allocate() {
+  constexpr size_t allocation_size =
+      __builtin_align_up(sizeof(T), sizeof(void *));
+  return static_cast<T *>(
+      __builtin_assume_aligned(allocate_impl(allocation_size), sizeof(void *)));
+}
+struct Foo {
+  int value;
+};
+void *test2() {
+  return allocate<struct Foo>();
+}
+
+// Check that pointers-to-members cannot be used:
+class MemPtr {
+public:
+  int data;
+  void func();
+  virtual void vfunc();
+};
+void test_member_ptr() {
+  __builtin_align_up(&MemPtr::data, 64);    // both-error{{operand of type 'int MemPtr::*' where arithmetic or pointer type is required}}
+  __builtin_align_down(&MemPtr::func, 64);  // both-error{{operand of type 'void (MemPtr::*)()' where arithmetic or pointer type is required}}
+  __builtin_is_aligned(&MemPtr::vfunc, 64); // both-error{{operand of type 'void (MemPtr::*)()' where arithmetic or pointer type is required}}
+}
+
+void test_references(Foo &i) {
+  // Check that the builtins look at the referenced type rather than the reference itself.
+  (void)__builtin_align_up(i, 64);                            // both-error{{operand of type 'Foo' where arithmetic or pointer type is required}}
+  (void)__builtin_align_up(static_cast<Foo &>(i), 64);        // both-error{{operand of type 'Foo' where arithmetic or pointer type is required}}
+  (void)__builtin_align_up(static_cast<const Foo &>(i), 64);  // both-error{{operand of type 'const Foo' where arithmetic or pointer type is required}}
+  (void)__builtin_align_up(static_cast<Foo &&>(i), 64);       // both-error{{operand of type 'Foo' where arithmetic or pointer type is required}}
+  (void)__builtin_align_up(static_cast<const Foo &&>(i), 64); // both-error{{operand of type 'const Foo' where arithmetic or pointer type is required}}
+  (void)__builtin_align_up(&i, 64);
+}
+
+// Check that constexpr wrapper functions can be constant-evaluated.
+template <typename T>
+constexpr bool wrap_is_aligned(T ptr, long align) {
+  return __builtin_is_aligned(ptr, align);
+  // both-note@-1{{requested alignment -3 is not a positive power of two}}
+  // both-note@-2{{requested alignment 19 is not a positive power of two}}
+  // both-note@-3{{requested alignment must be 128 or less for type 'char'; 4194304 is invalid}}
+}
+template <typename T>
+constexpr T wrap_align_up(T ptr, long align) {
+  return __builtin_align_up(ptr, align);
+  // both-note@-1{{requested alignment -2 is not a positive power of two}}
+  // both-note@-2{{requested alignment 18 is not a positive power of two}}
+  // both-note@-3{{requested alignment must be 2147483648 or less for type 'int'; 8589934592 is invalid}}
+  // both-error@-4{{operand of type 'bool' where arithmetic or pointer type is required}}
+}
+
+template <typename T>
+constexpr T wrap_align_down(T ptr, long align) {
+  return __builtin_align_down(ptr, align);
+  // both-note@-1{{requested alignment -1 is not a positive power of two}}
+  // both-note@-2{{requested alignment 17 is not a positive power of two}}
+  // both-note@-3{{requested alignment must be 32768 or less for type 'short'; 1048576 is invalid}}
+}
+
+constexpr int a1 = wrap_align_up(22, 32);
+static_assert(a1 == 32, "");
+constexpr int a2 = wrap_align_down(22, 16);
+static_assert(a2 == 16, "");
+constexpr bool a3 = wrap_is_aligned(22, 32);
+static_assert(!a3, "");
+static_assert(wrap_align_down(wrap_align_up(22, 16), 32) == 32, "");
+static_assert(wrap_is_aligned(wrap_align_down(wrap_align_up(22, 16), 32), 32), "");
+static_assert(!wrap_is_aligned(wrap_align_down(wrap_align_up(22, 16), 32), 64), "");
+
+constexpr long const_value(long l) { return l; }
+// Check some invalid values during constant-evaluation
+static_assert(wrap_align_down(1, const_value(-1)), ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{in call to}}
+static_assert(wrap_align_up(1, const_value(-2)), ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{in call to}}
+static_assert(wrap_is_aligned(1, const_value(-3)), ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{in call to}}
+static_assert(wrap_align_down(1, const_value(17)), ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{in call to}}
+static_assert(wrap_align_up(1, const_value(18)), ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{in call to}}
+static_assert(wrap_is_aligned(1, const_value(19)), ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{in call to}}
+
+// Check invalid values for smaller types:
+static_assert(wrap_align_down(static_cast<short>(1), const_value(1 << 20)), ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{in call to }}
+// Check invalid boolean type
+static_assert(wrap_align_up(static_cast<int>(1), const_value(1ull << 33)), ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{in call to}}
+static_assert(wrap_is_aligned(static_cast<char>(1), const_value(1 << 22)), ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{in call to}}
+
+// Check invalid boolean type
+static_assert(wrap_align_up(static_cast<bool>(1), const_value(1 << 21)), ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{in instantiation of function template specialization 'wrap_align_up<bool>' requested here}}
+
+// Check constant evaluation for pointers:
+_Alignas(32) char align32array[128] = {};
+static_assert(&align32array[0] == &align32array[0], "");
+// __builtin_align_up/down can be constant evaluated as a no-op for values
+// that are known to have greater alignment:
+static_assert(__builtin_align_up(&align32array[0], 32) == &align32array[0], "");
+static_assert(__builtin_align_up(&align32array[0], 4) == &align32array[0], "");
+static_assert(__builtin_align_down(&align32array[0], 4) == __builtin_align_up(&align32array[0], 8), "");
+// But it can not be evaluated if the alignment is greater than the minimum
+// known alignment, since in that case the value might be the same if it happens
+// to actually be aligned to 64 bytes at run time.
+static_assert(&align32array[0] == __builtin_align_up(&align32array[0], 64), ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{cannot constant evaluate the result of adjusting alignment to 64}}
+static_assert(__builtin_align_up(&align32array[0], 64) == __builtin_align_up(&align32array[0], 64), ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{cannot constant evaluate the result of adjusting alignment to 64}}
+
+// However, we can compute in case the requested alignment is less than the
+// base alignment:
+static_assert(__builtin_align_up(&align32array[0], 4) == &align32array[0], "");
+static_assert(__builtin_align_up(&align32array[1], 4) == &align32array[4], "");
+static_assert(__builtin_align_up(&align32array[2], 4) == &align32array[4], "");
+static_assert(__builtin_align_up(&align32array[3], 4) == &align32array[4], "");
+static_assert(__builtin_align_up(&align32array[4], 4) == &align32array[4], "");
+static_assert(__builtin_align_up(&align32array[5], 4) == &align32array[8], "");
+static_assert(__builtin_align_up(&align32array[6], 4) == &align32array[8], "");
+static_assert(__builtin_align_up(&align32array[7], 4) == &align32array[8], "");
+static_assert(__builtin_align_up(&align32array[8], 4) == &align32array[8], "");
+
+static_assert(__builtin_align_down(&align32array[0], 4) == &align32array[0], "");
+static_assert(__builtin_align_down(&align32array[1], 4) == &align32array[0], "");
+static_assert(__builtin_align_down(&align32array[2], 4) == &align32array[0], "");
+static_assert(__builtin_align_down(&align32array[3], 4) == &align32array[0], "");
+static_assert(__builtin_align_down(&align32array[4], 4) == &align32array[4], "");
+static_assert(__builtin_align_down(&align32array[5], 4) == &align32array[4], "");
+static_assert(__builtin_align_down(&align32array[6], 4) == &align32array[4], "");
+static_assert(__builtin_align_down(&align32array[7], 4) == &align32array[4], "");
+static_assert(__builtin_align_down(&align32array[8], 4) == &align32array[8], "");
+
+// Achieving the same thing using casts to uintptr_t is not allowed:
+static_assert((char *)((__UINTPTR_TYPE__)&align32array[7] & ~3) == &align32array[4], ""); // both-error{{not an integral constant expression}} \
+                                                                                          // expected-note {{cast that performs the conversions of a reinterpret_cast is not allowed in a constant expression}}
+
+static_assert(__builtin_align_down(&align32array[1], 4) == &align32array[0], "");
+static_assert(__builtin_align_down(&align32array[1], 64) == &align32array[0], ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{cannot constant evaluate the result of adjusting alignment to 64}}
+
+// Add some checks for __builtin_is_aligned:
+static_assert(__builtin_is_aligned(&align32array[0], 32), "");
+static_assert(__builtin_is_aligned(&align32array[4], 4), "");
+// We cannot constant evaluate whether the array is aligned to > 32 since this
+// may well be true at run time.
+static_assert(!__builtin_is_aligned(&align32array[0], 64), ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{cannot constant evaluate whether run-time alignment is at least 64}}
+
+// However, if the alignment being checked is less than the minimum alignment of
+// the base object we can check the low bits of the alignment:
+static_assert(__builtin_is_aligned(&align32array[0], 4), "");
+static_assert(!__builtin_is_aligned(&align32array[1], 4), "");
+static_assert(!__builtin_is_aligned(&align32array[2], 4), "");
+static_assert(!__builtin_is_aligned(&align32array[3], 4), "");
+static_assert(__builtin_is_aligned(&align32array[4], 4), "");
+
+// TODO: this should evaluate to true even though we can't evaluate the result
+//  of __builtin_align_up() to a concrete value
+static_assert(__builtin_is_aligned(__builtin_align_up(&align32array[0], 64), 64), ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{cannot constant evaluate the result of adjusting alignment to 64}}
+
+// Check different source and alignment type widths are handled correctly.
+static_assert(!__builtin_is_aligned(static_cast<signed long>(7), static_cast<signed short>(4)), "");
+static_assert(!__builtin_is_aligned(static_cast<signed short>(7), static_cast<signed long>(4)), "");
+// Also check signed -- unsigned mismatch.
+static_assert(!__builtin_is_aligned(static_cast<signed long>(7), static_cast<signed long>(4)), "");
+static_assert(!__builtin_is_aligned(static_cast<unsigned long>(7), static_cast<unsigned long>(4)), "");
+static_assert(!__builtin_is_aligned(static_cast<signed long>(7), static_cast<unsigned long>(4)), "");
+static_assert(!__builtin_is_aligned(static_cast<unsigned long>(7), static_cast<signed long>(4)), "");
+static_assert(!__builtin_is_aligned(static_cast<signed long>(7), static_cast<unsigned short>(4)), "");
+static_assert(!__builtin_is_aligned(static_cast<unsigned short>(7), static_cast<signed long>(4)), "");
+
+// Check the diagnostic message
+_Alignas(void) char align_void_array[1]; // both-error {{invalid application of '_Alignas' to an incomplete type 'void'}}
diff --git a/clang/test/AST/Interp/builtin-functions.cpp b/clang/test/AST/Interp/builtin-functions.cpp
index a7adc92d3714..1a29a664d7ce 100644
--- a/clang/test/AST/Interp/builtin-functions.cpp
+++ b/clang/test/AST/Interp/builtin-functions.cpp
@@ -24,16 +24,13 @@ namespace strcmp {
   static_assert(__builtin_strcmp("abab", "abab\0banana") == 0, "");
   static_assert(__builtin_strcmp("abab\0banana", "abab\0canada") == 0, "");
   static_assert(__builtin_strcmp(0, "abab") == 0, ""); // both-error {{not an integral constant}} \
-                                                       // both-note {{dereferenced null}} \
-                                                       // expected-note {{in call to}}
+                                                       // both-note {{dereferenced null}}
   static_assert(__builtin_strcmp("abab", 0) == 0, ""); // both-error {{not an integral constant}} \
-                                                       // both-note {{dereferenced null}} \
-                                                       // expected-note {{in call to}}
+                                                       // both-note {{dereferenced null}}
 
   static_assert(__builtin_strcmp(kFoobar, kFoobazfoobar) == -1, "");
   static_assert(__builtin_strcmp(kFoobar, kFoobazfoobar + 6) == 0, ""); // both-error {{not an integral constant}} \
-                                                                        // both-note {{dereferenced one-past-the-end}} \
-                                                                        // expected-note {{in call to}}
+                                                                        // both-note {{dereferenced one-past-the-end}}
 
   /// Used to assert because we're passing a dummy pointer to
   /// __builtin_strcmp() when evaluating the return statement.
@@ -72,14 +69,11 @@ constexpr const char *a = "foo\0quux";
   static_assert(check(c), "");
 
   constexpr int over1 = __builtin_strlen(a + 9); // both-error {{constant expression}} \
-                                                 // both-note {{one-past-the-end}} \
-                                                 // expected-note {{in call to}}
+                                                 // both-note {{one-past-the-end}}
   constexpr int over2 = __builtin_strlen(b + 9); // both-error {{constant expression}} \
-                                                 // both-note {{one-past-the-end}} \
-                                                 // expected-note {{in call to}}
+                                                 // both-note {{one-past-the-end}}
   constexpr int over3 = __builtin_strlen(c + 9); // both-error {{constant expression}} \
-                                                 // both-note {{one-past-the-end}} \
-                                                 // expected-note {{in call to}}
+                                                 // both-note {{one-past-the-end}}
 
   constexpr int under1 = __builtin_strlen(a - 1); // both-error {{constant expression}} \
                                                   // both-note {{cannot refer to element -1}}
@@ -90,8 +84,7 @@ constexpr const char *a = "foo\0quux";
 
   constexpr char d[] = { 'f', 'o', 'o' }; // no nul terminator.
   constexpr int bad = __builtin_strlen(d); // both-error {{constant expression}} \
-                                           // both-note {{one-past-the-end}} \
-                                           // expected-note {{in call to}}
+                                           // both-note {{one-past-the-end}}
 }
 
 namespace nan {
@@ -114,8 +107,7 @@ namespace nan {
   /// FIXME: Current interpreter misses diagnostics.
   constexpr char f2[] = {'0', 'x', 'A', 'E'}; /// No trailing 0 byte.
   constexpr double NaN7 = __builtin_nan(f2); // both-error {{must be initialized by a constant expression}} \
-                                             // expected-note {{read of dereferenced one-past-the-end pointer}} \
-                                             // expected-note {{in call to}}
+                                             // expected-note {{read of dereferenced one-past-the-end pointer}}
   static_assert(!__builtin_issignaling(__builtin_nan("")), "");
   static_assert(__builtin_issignaling(__builtin_nans("")), "");
 }
diff --git a/clang/test/AST/Interp/cxx03.cpp b/clang/test/AST/Interp/cxx03.cpp
index d30cbb2fd7a2..b6aaf0840cfb 100644
--- a/clang/test/AST/Interp/cxx03.cpp
+++ b/clang/test/AST/Interp/cxx03.cpp
@@ -10,3 +10,17 @@ namespace NonInitializingMemberExpr {
                                                                                               // both-note {{required by}} \
                                                                                               // both-note {{subexpression not valid}}
 }
+
+
+namespace NonLValueMemberExpr {
+  struct PODType {
+    int value;
+  };
+
+#define ATTR __attribute__((require_constant_initialization))
+  struct TT1 {
+    ATTR static const int &subobj_init;
+  };
+
+  const int &TT1::subobj_init = PODType().value;
+}
diff --git a/clang/test/AST/Interp/functions.cpp b/clang/test/AST/Interp/functions.cpp
index 4fb3c816000a..f9bb5d53634e 100644
--- a/clang/test/AST/Interp/functions.cpp
+++ b/clang/test/AST/Interp/functions.cpp
@@ -584,9 +584,20 @@ namespace VariadicOperator {
 namespace WeakCompare {
   [[gnu::weak]]void weak_method();
   static_assert(weak_method != nullptr, ""); // both-error {{not an integral constant expression}} \
-                                         // both-note {{comparison against address of weak declaration '&weak_method' can only be performed at runtim}}
+                                             // both-note {{comparison against address of weak declaration '&weak_method' can only be performed at runtim}}
 
   constexpr auto A = &weak_method;
   static_assert(A != nullptr, ""); // both-error {{not an integral constant expression}} \
-                               // both-note {{comparison against address of weak declaration '&weak_method' can only be performed at runtim}}
+                                   // both-note {{comparison against address of weak declaration '&weak_method' can only be performed at runtim}}
+}
+
+namespace FromIntegral {
+#if __cplusplus >= 202002L
+  typedef double (*DoubleFn)();
+  int a[(int)DoubleFn((void*)-1)()]; // both-error {{not allowed at file scope}} \
+                                    // both-warning {{variable length arrays}}
+  int b[(int)DoubleFn((void*)(-1 + 1))()]; // both-error {{not allowed at file scope}} \
+                                           // expected-note {{evaluates to a null function pointer}} \
+                                           // both-warning {{variable length arrays}}
+#endif
 }
diff --git a/clang/test/AST/Interp/records.cpp b/clang/test/AST/Interp/records.cpp
index f251497ed701..2c33fa1bf884 100644
--- a/clang/test/AST/Interp/records.cpp
+++ b/clang/test/AST/Interp/records.cpp
@@ -1309,3 +1309,11 @@ namespace pr18633 {
     func2<int>();
   }
 }
+
+namespace {
+  struct F {
+    static constexpr int Z = 12;
+  };
+  F f;
+  static_assert(f.Z == 12, "");
+}
diff --git a/clang/test/AST/Interp/vectors.cpp b/clang/test/AST/Interp/vectors.cpp
index 8afef3c897bf..6c5d916f51f5 100644
--- a/clang/test/AST/Interp/vectors.cpp
+++ b/clang/test/AST/Interp/vectors.cpp
@@ -1,7 +1,7 @@
 // RUN: %clang_cc1 -fexperimental-new-constant-interpreter -verify=expected,both %s
 // RUN: %clang_cc1 -verify=ref,both %s
 
-// both-no-diagnostics
+// ref-no-diagnostics
 
 typedef int __attribute__((vector_size(16))) VI4;
 constexpr VI4 A = {1,2,3,4};
@@ -13,10 +13,18 @@ namespace Vector {
     return VI4 { n * 3, n + 4, n - 5, n / 6 };
   }
   constexpr auto v1 = f(10);
+  static_assert(__builtin_vectorelements(v1) == (16 / sizeof(int)), "");
 
   typedef double __attribute__((vector_size(32))) VD4;
   constexpr VD4 g(int n) {
     return (VD4) { n / 2.0, n + 1.5, n - 5.4, n * 0.9 };
   }
   constexpr auto v2 = g(4);
+  static_assert(__builtin_vectorelements(v2) == (32 / sizeof(double)), "");
+}
+
+/// FIXME: We need to support BitCasts between vector types.
+namespace {
+  typedef float __attribute__((vector_size(16))) VI42;
+  constexpr VI42 A2 = A; // expected-error {{must be initialized by a constant expression}}
 }
diff --git a/clang/test/Analysis/Inputs/system-header-simulator-cxx.h b/clang/test/Analysis/Inputs/system-header-simulator-cxx.h
index 85db68d41a6c..1c2be322f83c 100644
--- a/clang/test/Analysis/Inputs/system-header-simulator-cxx.h
+++ b/clang/test/Analysis/Inputs/system-header-simulator-cxx.h
@@ -1106,6 +1106,7 @@ using ostream = basic_ostream<char>;
 extern std::ostream cout;
 
 ostream &operator<<(ostream &, const string &);
+
 #if __cplusplus >= 202002L
 template <class T>
 ostream &operator<<(ostream &, const std::unique_ptr<T> &);
@@ -1122,11 +1123,12 @@ istream &getline(istream &, string &, char);
 istream &getline(istream &, string &);
 } // namespace std
 
-#ifdef TEST_INLINABLE_ALLOCATORS
 namespace std {
   void *malloc(size_t);
   void free(void *);
-}
+} // namespace std
+
+#ifdef TEST_INLINABLE_ALLOCATORS
 void* operator new(std::size_t size, const std::nothrow_t&) throw() { return std::malloc(size); }
 void* operator new[](std::size_t size, const std::nothrow_t&) throw() { return std::malloc(size); }
 void operator delete(void* ptr, const std::nothrow_t&) throw() { std::free(ptr); }
diff --git a/clang/test/Analysis/cxx-uninitialized-object-ptr-ref.cpp b/clang/test/Analysis/cxx-uninitialized-object-ptr-ref.cpp
index fc067dd04428..f46a2c9bc368 100644
--- a/clang/test/Analysis/cxx-uninitialized-object-ptr-ref.cpp
+++ b/clang/test/Analysis/cxx-uninitialized-object-ptr-ref.cpp
@@ -1,9 +1,9 @@
-// RUN: %clang_analyze_cc1 -analyzer-checker=core,optin.cplusplus.UninitializedObject \
+// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.Malloc,optin.cplusplus.UninitializedObject \
 // RUN:   -analyzer-config optin.cplusplus.UninitializedObject:Pedantic=true -DPEDANTIC \
 // RUN:   -analyzer-config optin.cplusplus.UninitializedObject:CheckPointeeInitialization=true \
 // RUN:   -std=c++11 -verify  %s
 
-// RUN: %clang_analyze_cc1 -analyzer-checker=core,optin.cplusplus.UninitializedObject \
+// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.Malloc,optin.cplusplus.UninitializedObject \
 // RUN:   -analyzer-config optin.cplusplus.UninitializedObject:CheckPointeeInitialization=true \
 // RUN:   -std=c++11 -verify  %s
 
@@ -316,7 +316,10 @@ void fCyclicPointerTest2() {
 
 // Void pointer tests are mainly no-crash tests.
 
-void *malloc(int size);
+typedef __typeof(sizeof(int)) size_t;
+
+void *calloc(size_t nmemb, size_t size);
+void free(void *p);
 
 class VoidPointerTest1 {
   void *vptr;
@@ -328,8 +331,9 @@ public:
 };
 
 void fVoidPointerTest1() {
-  void *vptr = malloc(sizeof(int));
+  void *vptr = calloc(1, sizeof(int));
   VoidPointerTest1(vptr, char());
+  free(vptr);
 }
 
 class VoidPointerTest2 {
@@ -342,8 +346,9 @@ public:
 };
 
 void fVoidPointerTest2() {
-  void *vptr = malloc(sizeof(int));
+  void *vptr = calloc(1, sizeof(int));
   VoidPointerTest2(&vptr, char());
+  free(vptr);
 }
 
 class VoidPointerRRefTest1 {
@@ -359,8 +364,9 @@ upon returning to the caller.  This will be a dangling reference}}
 };
 
 void fVoidPointerRRefTest1() {
-  void *vptr = malloc(sizeof(int));
+  void *vptr = calloc(1, sizeof(int));
   VoidPointerRRefTest1(vptr, char());
+  free(vptr);
 }
 
 class VoidPointerRRefTest2 {
@@ -376,8 +382,9 @@ upon returning to the caller.  This will be a dangling reference}}
 };
 
 void fVoidPointerRRefTest2() {
-  void *vptr = malloc(sizeof(int));
+  void *vptr = calloc(1, sizeof(int));
   VoidPointerRRefTest2(&vptr, char());
+  free(vptr);
 }
 
 class VoidPointerLRefTest {
@@ -393,8 +400,9 @@ upon returning to the caller.  This will be a dangling reference}}
 };
 
 void fVoidPointerLRefTest() {
-  void *vptr = malloc(sizeof(int));
+  void *vptr = calloc(1, sizeof(int));
   VoidPointerLRefTest(vptr, char());
+  free(vptr);
 }
 
 struct CyclicVoidPointerTest {
diff --git a/clang/test/Analysis/exercise-ps.c b/clang/test/Analysis/exercise-ps.c
index d214c3959b20..d1e1771afddb 100644
--- a/clang/test/Analysis/exercise-ps.c
+++ b/clang/test/Analysis/exercise-ps.c
@@ -1,5 +1,5 @@
 // RUN: %clang_analyze_cc1 %s -verify -Wno-error=implicit-function-declaration \
-// RUN:   -analyzer-checker=core \
+// RUN:   -analyzer-checker=core,unix.Malloc \
 // RUN:   -analyzer-config core.CallAndMessage:ArgPointeeInitializedness=true
 //
 // Just exercise the analyzer on code that has at one point caused issues
diff --git a/clang/test/Analysis/explain-svals.cpp b/clang/test/Analysis/explain-svals.cpp
index 30368b6976cc..33fce10c4e2b 100644
--- a/clang/test/Analysis/explain-svals.cpp
+++ b/clang/test/Analysis/explain-svals.cpp
@@ -1,7 +1,7 @@
 // RUN: %clang_analyze_cc1 -triple i386-apple-darwin10 -verify %s \
-// RUN:   -analyzer-checker=core.builtin \
 // RUN:   -analyzer-checker=debug.ExprInspection \
 // RUN:   -analyzer-checker=unix.cstring \
+// RUN:   -analyzer-checker=unix.Malloc \
 // RUN:   -analyzer-config display-checker-name=false
 
 typedef unsigned long size_t;
diff --git a/clang/test/Analysis/malloc-std-namespace.cpp b/clang/test/Analysis/malloc-std-namespace.cpp
new file mode 100644
index 000000000000..d4e397bb812a
--- /dev/null
+++ b/clang/test/Analysis/malloc-std-namespace.cpp
@@ -0,0 +1,24 @@
+// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.Malloc -verify -analyzer-output=text %s
+
+// This file tests that unix.Malloc can handle C++ code where e.g. malloc and
+// free are declared within the namespace 'std' by the header <cstdlib>.
+
+#include "Inputs/system-header-simulator-cxx.h"
+
+void leak() {
+  int *p = static_cast<int*>(std::malloc(sizeof(int))); // expected-note{{Memory is allocated}}
+} // expected-warning{{Potential leak of memory pointed to by 'p'}}
+  // expected-note@-1{{Potential leak of memory pointed to by 'p'}}
+
+void no_leak() {
+  int *p = static_cast<int*>(std::malloc(sizeof(int)));
+  std::free(p); // no-warning
+}
+
+void invalid_free() {
+  int i;
+  int *p = &i;
+  //expected-note@+2{{Argument to free() is the address of the local variable 'i', which is not memory allocated by malloc()}}
+  //expected-warning@+1{{Argument to free() is the address of the local variable 'i', which is not memory allocated by malloc()}}
+  std::free(p);
+}
diff --git a/clang/test/Analysis/malloc.c b/clang/test/Analysis/malloc.c
index 09cd4b0bfce6..e5cb45ba7335 100644
--- a/clang/test/Analysis/malloc.c
+++ b/clang/test/Analysis/malloc.c
@@ -740,6 +740,17 @@ void allocaFree(void) {
   free(p); // expected-warning {{Memory allocated by alloca() should not be deallocated}}
 }
 
+void allocaFreeBuiltin(void) {
+  int *p = __builtin_alloca(sizeof(int));
+  free(p); // expected-warning {{Memory allocated by alloca() should not be deallocated}}
+}
+
+void allocaFreeBuiltinAlign(void) {
+  int *p = __builtin_alloca_with_align(sizeof(int), 64);
+  free(p); // expected-warning {{Memory allocated by alloca() should not be deallocated}}
+}
+
+
 int* mallocEscapeRet(void) {
   int *p = malloc(12);
   return p; // no warning
diff --git a/clang/test/Analysis/malloc.cpp b/clang/test/Analysis/malloc.cpp
index 14b4c0576384..300b344ab25d 100644
--- a/clang/test/Analysis/malloc.cpp
+++ b/clang/test/Analysis/malloc.cpp
@@ -214,3 +214,14 @@ void *realloc(void **ptr, size_t size) { realloc(ptr, size); } // no-crash
 namespace pr46253_paramty2{
 void *realloc(void *ptr, int size) { realloc(ptr, size); } // no-crash
 } // namespace pr46253_paramty2
+
+namespace pr81597 {
+struct S {};
+struct T {
+  void free(const S& s);
+};
+void f(T& t) {
+  S s;
+  t.free(s); // no-warning: This is not the free you are looking for...
+}
+} // namespace pr81597
diff --git a/clang/test/Analysis/stack-addr-ps.c b/clang/test/Analysis/stack-addr-ps.c
index e469396e1bb2..e69ab4189b52 100644
--- a/clang/test/Analysis/stack-addr-ps.c
+++ b/clang/test/Analysis/stack-addr-ps.c
@@ -1,4 +1,4 @@
-// RUN: %clang_analyze_cc1 -analyzer-checker=core -fblocks -verify %s
+// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.Malloc -fblocks -verify %s
 
 int* f1(void) {
   int x = 0;
diff --git a/clang/test/Analysis/stackaddrleak.c b/clang/test/Analysis/stackaddrleak.c
index 0583bfc18711..39c29f2a2635 100644
--- a/clang/test/Analysis/stackaddrleak.c
+++ b/clang/test/Analysis/stackaddrleak.c
@@ -1,5 +1,5 @@
-// RUN: %clang_analyze_cc1 -analyzer-checker=core -verify -std=c99 -Dbool=_Bool -Wno-bool-conversion %s
-// RUN: %clang_analyze_cc1 -analyzer-checker=core -verify -x c++ -Wno-bool-conversion %s
+// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.Malloc -verify -std=c99 -Dbool=_Bool -Wno-bool-conversion %s
+// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.Malloc -verify -x c++ -Wno-bool-conversion %s
 
 typedef __INTPTR_TYPE__ intptr_t;
 char const *p;
diff --git a/clang/test/CodeGen/target-data.c b/clang/test/CodeGen/target-data.c
index acff367d50eb..c184f314f68f 100644
--- a/clang/test/CodeGen/target-data.c
+++ b/clang/test/CodeGen/target-data.c
@@ -251,11 +251,11 @@
 
 // RUN: %clang_cc1 -triple spir-unknown -o - -emit-llvm %s | \
 // RUN: FileCheck %s -check-prefix=SPIR
-// SPIR: target datalayout = "e-p:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024"
+// SPIR: target datalayout = "e-p:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-G1"
 
 // RUN: %clang_cc1 -triple spir64-unknown -o - -emit-llvm %s | \
 // RUN: FileCheck %s -check-prefix=SPIR64
-// SPIR64: target datalayout = "e-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024"
+// SPIR64: target datalayout = "e-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-G1"
 
 // RUN: %clang_cc1 -triple bpfel -o - -emit-llvm %s | \
 // RUN: FileCheck %s -check-prefix=BPFEL
diff --git a/clang/test/CodeGenCXX/control-flow-in-stmt-expr.cpp b/clang/test/CodeGenCXX/control-flow-in-stmt-expr.cpp
index 95deee8bb1f1..0a51b0e4121c 100644
--- a/clang/test/CodeGenCXX/control-flow-in-stmt-expr.cpp
+++ b/clang/test/CodeGenCXX/control-flow-in-stmt-expr.cpp
@@ -391,3 +391,19 @@ void ArrayInitWithContinue() {
                      })};
   }
 }
+
+struct [[clang::trivial_abi]] HasTrivialABI {
+  HasTrivialABI();
+  ~HasTrivialABI();
+};
+void AcceptTrivialABI(HasTrivialABI, int);
+void TrivialABI() {
+  // CHECK-LABEL: define dso_local void @_Z10TrivialABIv()
+  AcceptTrivialABI(HasTrivialABI(), ({
+                     if (foo()) return;
+                     // CHECK:      if.then:
+                     // CHECK-NEXT:   call void @_ZN13HasTrivialABID1Ev
+                     // CHECK-NEXT:   br label %return
+                     0;
+                   }));
+}
diff --git a/clang/test/Driver/windows-seh-async-verify.cpp b/clang/test/Driver/windows-seh-async-verify.cpp
new file mode 100644
index 000000000000..ace93cf44a31
--- /dev/null
+++ b/clang/test/Driver/windows-seh-async-verify.cpp
@@ -0,0 +1,24 @@
+// RUN: %clang --target=x86_64-pc-windows -fasync-exceptions -fsyntax-only -### %s 2>&1 | FileCheck %s
+// RUN: %clang_cl --target=x86_64-pc-windows /EHa -fsyntax-only -### -- %s 2>&1 | FileCheck %s
+// RUN: %clang --target=x86_64-pc-windows-gnu -fasync-exceptions -fsyntax-only -### %s 2>&1 | FileCheck %s --check-prefixes=GNU-ALL,GNU
+// RUN: %clang_cl --target=x86_64-pc-windows-gnu /EHa -fsyntax-only -### -- %s 2>&1 | FileCheck %s --check-prefixes=GNU-ALL,CL-GNU
+
+// CHECK-NOT: warning
+// GNU: warning: argument unused during compilation: '-fasync-exceptions' [-Wunused-command-line-argument]
+// CL-GNU: warning: argument unused during compilation: '/EHa' [-Wunused-command-line-argument]
+
+// CHECK: -fasync-exceptions
+// GNU-ALL-NOT: -fasync-exceptions
+struct S {
+    union _Un {
+        ~_Un() {}
+        char _Buf[12];
+    };
+    _Un _un;
+};
+
+struct Embed {
+    S v2;
+};
+
+void PR62449() { Embed v{}; }
diff --git a/clang/test/Index/USR/func-type.cpp b/clang/test/Index/USR/func-type.cpp
index ff1cd37a7fc4..459a8cd6da55 100644
--- a/clang/test/Index/USR/func-type.cpp
+++ b/clang/test/Index/USR/func-type.cpp
@@ -16,3 +16,15 @@ void Func( void (* (*)(int, int))(int, int) );
 // CHECK: {{[0-9]+}}:6 | function/C | Func | c:@F@Func#*F*Fv(#I#I)(#I#I)# |
 void Func( void (* (*)(int, int, int))(int) );
 // CHECK: {{[0-9]+}}:6 | function/C | Func | c:@F@Func#*F*Fv(#I)(#I#I#I)# |
+
+// Functions with parameter types that only differ in top-level cv-qualification should generate the same USR.
+
+void f( const int );
+// CHECK: {{[0-9]+}}:6 | function/C | f | c:@F@f#I# |
+void f( int );
+// CHECK: {{[0-9]+}}:6 | function/C | f | c:@F@f#I# |
+
+void g( int );
+// CHECK: {{[0-9]+}}:6 | function/C | g | c:@F@g#I# |
+void g( const int );
+// CHECK: {{[0-9]+}}:6 | function/C | g | c:@F@g#I# |
diff --git a/clang/test/Modules/hashing-decls-in-exprs-from-gmf-2.cppm b/clang/test/Modules/hashing-decls-in-exprs-from-gmf-2.cppm
new file mode 100644
index 000000000000..66143102cb9e
--- /dev/null
+++ b/clang/test/Modules/hashing-decls-in-exprs-from-gmf-2.cppm
@@ -0,0 +1,44 @@
+// RUN: rm -rf %t
+// RUN: mkdir -p %t
+// RUN: split-file %s %t
+//
+// RUN: %clang_cc1 -std=c++20 -fskip-odr-check-in-gmf %t/A.cppm -emit-module-interface -o %t/A.pcm
+// RUN: %clang_cc1 -std=c++20 -fskip-odr-check-in-gmf %t/test.cpp -fprebuilt-module-path=%t -fsyntax-only -verify
+
+//--- header.h
+#pragma once
+template <class _Tp>
+class Optional {};
+
+template <class _Tp>
+concept C = requires(const _Tp& __t) {
+    []<class _Up>(const Optional<_Up>&) {}(__t);
+};
+
+//--- func.h
+#include "header.h"
+template <C T>
+void func() {}
+
+//--- test_func.h
+#include "func.h"
+
+inline void test_func() {
+    func<Optional<int>>();
+}
+
+//--- A.cppm
+module;
+#include "header.h"
+#include "test_func.h"
+export module A;
+export using ::test_func;
+
+//--- test.cpp
+// expected-no-diagnostics
+import A;
+#include "test_func.h"
+
+void test() {
+    test_func();
+}
diff --git a/clang/test/SemaCXX/instantiate-new-placement-size.cpp b/clang/test/SemaCXX/instantiate-new-placement-size.cpp
new file mode 100644
index 000000000000..7a29d3dee849
--- /dev/null
+++ b/clang/test/SemaCXX/instantiate-new-placement-size.cpp
@@ -0,0 +1,20 @@
+// RUN: %clang -S -fno-discard-value-names -emit-llvm -o - %s | FileCheck %s
+// Issue no: 41441
+#include <new>
+
+// CHECK: call void @llvm.memset.p0.i64(ptr align 1 %x, i8 0, i64 8, i1 false)
+// CHECK: call void @llvm.memset.p0.i64(ptr align 16 %x, i8 0, i64 32, i1 false)
+template <typename TYPE>
+void f()
+{
+    typedef TYPE TArray[8];
+
+    TArray x;
+    new(&x) TArray();
+}
+
+int main()
+{
+    f<char>();
+    f<int>();
+}
diff --git a/flang/docs/Intrinsics.md b/flang/docs/Intrinsics.md
index ccb93e104dab..848619cb65d9 100644
--- a/flang/docs/Intrinsics.md
+++ b/flang/docs/Intrinsics.md
@@ -657,6 +657,14 @@ CALL CO_REDUCE
 CALL CO_SUM
 ```
 
+### Inquiry Functions
+ACCESS (GNU extension) is not supported on Windows. Otherwise:
+```
+CHARACTER(LEN=*) :: path = 'path/to/file'
+IF (ACCESS(path, 'rwx')) &
+  ...
+```
+
 ## Non-standard intrinsics
 ### PGI
 ```
diff --git a/flang/include/flang/Runtime/extensions.h b/flang/include/flang/Runtime/extensions.h
index 7d0952206fc1..fef651f3b2ee 100644
--- a/flang/include/flang/Runtime/extensions.h
+++ b/flang/include/flang/Runtime/extensions.h
@@ -44,5 +44,12 @@ std::int64_t RTNAME(Signal)(std::int64_t number, void (*handler)(int));
 // GNU extension subroutine SLEEP(SECONDS)
 void RTNAME(Sleep)(std::int64_t seconds);
 
+// GNU extension function ACCESS(NAME, MODE)
+// TODO: not supported on Windows
+#ifndef _WIN32
+std::int64_t FORTRAN_PROCEDURE_NAME(access)(const char *name,
+    std::int64_t nameLength, const char *mode, std::int64_t modeLength);
+#endif
+
 } // extern "C"
 #endif // FORTRAN_RUNTIME_EXTENSIONS_H_
diff --git a/flang/lib/Lower/OpenMP/ClauseProcessor.cpp b/flang/lib/Lower/OpenMP/ClauseProcessor.cpp
index ae0d8bd37228..4c51b61f6bf0 100644
--- a/flang/lib/Lower/OpenMP/ClauseProcessor.cpp
+++ b/flang/lib/Lower/OpenMP/ClauseProcessor.cpp
@@ -832,8 +832,8 @@ createMapInfoOp(fir::FirOpBuilder &builder, mlir::Location loc,
 }
 
 bool ClauseProcessor::processMap(
-    mlir::Location currentLocation, const llvm::omp::Directive &directive,
-    Fortran::lower::StatementContext &stmtCtx, mlir::omp::MapClauseOps &result,
+    mlir::Location currentLocation, Fortran::lower::StatementContext &stmtCtx,
+    mlir::omp::MapClauseOps &result,
     llvm::SmallVectorImpl<const Fortran::semantics::Symbol *> *mapSyms,
     llvm::SmallVectorImpl<mlir::Location> *mapSymLocs,
     llvm::SmallVectorImpl<mlir::Type> *mapSymTypes) const {
diff --git a/flang/lib/Lower/OpenMP/ClauseProcessor.h b/flang/lib/Lower/OpenMP/ClauseProcessor.h
index aa2c14b61e75..3f9701310eba 100644
--- a/flang/lib/Lower/OpenMP/ClauseProcessor.h
+++ b/flang/lib/Lower/OpenMP/ClauseProcessor.h
@@ -114,8 +114,7 @@ public:
   // They may be used later on to create the block_arguments for some of the
   // target directives that require it.
   bool processMap(
-      mlir::Location currentLocation, const llvm::omp::Directive &directive,
-      Fortran::lower::StatementContext &stmtCtx,
+      mlir::Location currentLocation, Fortran::lower::StatementContext &stmtCtx,
       mlir::omp::MapClauseOps &result,
       llvm::SmallVectorImpl<const Fortran::semantics::Symbol *> *mapSyms =
           nullptr,
diff --git a/flang/lib/Lower/OpenMP/OpenMP.cpp b/flang/lib/Lower/OpenMP/OpenMP.cpp
index 3dcfe0fd775d..9b9975223666 100644
--- a/flang/lib/Lower/OpenMP/OpenMP.cpp
+++ b/flang/lib/Lower/OpenMP/OpenMP.cpp
@@ -103,21 +103,6 @@ static fir::GlobalOp globalInitialization(
   return global;
 }
 
-static mlir::Operation *getCompareFromReductionOp(mlir::Operation *reductionOp,
-                                                  mlir::Value loadVal) {
-  for (mlir::Value reductionOperand : reductionOp->getOperands()) {
-    if (mlir::Operation *compareOp = reductionOperand.getDefiningOp()) {
-      if (compareOp->getOperand(0) == loadVal ||
-          compareOp->getOperand(1) == loadVal)
-        assert((mlir::isa<mlir::arith::CmpIOp>(compareOp) ||
-                mlir::isa<mlir::arith::CmpFOp>(compareOp)) &&
-               "Expected comparison not found in reduction intrinsic");
-      return compareOp;
-    }
-  }
-  return nullptr;
-}
-
 // Get the extended value for \p val by extracting additional variable
 // information from \p base.
 static fir::ExtendedValue getExtendedValue(fir::ExtendedValue base,
@@ -237,213 +222,276 @@ createAndSetPrivatizedLoopVar(Fortran::lower::AbstractConverter &converter,
   return storeOp;
 }
 
-static mlir::Operation *
-findReductionChain(mlir::Value loadVal, mlir::Value *reductionVal = nullptr) {
-  for (mlir::OpOperand &loadOperand : loadVal.getUses()) {
-    if (mlir::Operation *reductionOp = loadOperand.getOwner()) {
-      if (auto convertOp = mlir::dyn_cast<fir::ConvertOp>(reductionOp)) {
-        for (mlir::OpOperand &convertOperand : convertOp.getRes().getUses()) {
-          if (mlir::Operation *reductionOp = convertOperand.getOwner())
-            return reductionOp;
-        }
-      }
-      for (mlir::OpOperand &reductionOperand : reductionOp->getUses()) {
-        if (auto store =
-                mlir::dyn_cast<fir::StoreOp>(reductionOperand.getOwner())) {
-          if (store.getMemref() == *reductionVal) {
-            store.erase();
-            return reductionOp;
-          }
-        }
-        if (auto assign =
-                mlir::dyn_cast<hlfir::AssignOp>(reductionOperand.getOwner())) {
-          if (assign.getLhs() == *reductionVal) {
-            assign.erase();
-            return reductionOp;
-          }
-        }
-      }
+// This helper function implements the functionality of "promoting"
+// non-CPTR arguments of use_device_ptr to use_device_addr
+// arguments (automagic conversion of use_device_ptr ->
+// use_device_addr in these cases). The way we do so currently is
+// through the shuffling of operands from the devicePtrOperands to
+// deviceAddrOperands where neccesary and re-organizing the types,
+// locations and symbols to maintain the correct ordering of ptr/addr
+// input -> BlockArg.
+//
+// This effectively implements some deprecated OpenMP functionality
+// that some legacy applications unfortunately depend on
+// (deprecated in specification version 5.2):
+//
+// "If a list item in a use_device_ptr clause is not of type C_PTR,
+//  the behavior is as if the list item appeared in a use_device_addr
+//  clause. Support for such list items in a use_device_ptr clause
+//  is deprecated."
+static void promoteNonCPtrUseDevicePtrArgsToUseDeviceAddr(
+    mlir::omp::UseDeviceClauseOps &clauseOps,
+    llvm::SmallVectorImpl<mlir::Type> &useDeviceTypes,
+    llvm::SmallVectorImpl<mlir::Location> &useDeviceLocs,
+    llvm::SmallVectorImpl<const Fortran::semantics::Symbol *>
+        &useDeviceSymbols) {
+  auto moveElementToBack = [](size_t idx, auto &vector) {
+    auto *iter = std::next(vector.begin(), idx);
+    vector.push_back(*iter);
+    vector.erase(iter);
+  };
+
+  // Iterate over our use_device_ptr list and shift all non-cptr arguments into
+  // use_device_addr.
+  for (auto *it = clauseOps.useDevicePtrVars.begin();
+       it != clauseOps.useDevicePtrVars.end();) {
+    if (!fir::isa_builtin_cptr_type(fir::unwrapRefType(it->getType()))) {
+      clauseOps.useDeviceAddrVars.push_back(*it);
+      // We have to shuffle the symbols around as well, to maintain
+      // the correct Input -> BlockArg for use_device_ptr/use_device_addr.
+      // NOTE: However, as map's do not seem to be included currently
+      // this isn't as pertinent, but we must try to maintain for
+      // future alterations. I believe the reason they are not currently
+      // is that the BlockArg assign/lowering needs to be extended
+      // to a greater set of types.
+      auto idx = std::distance(clauseOps.useDevicePtrVars.begin(), it);
+      moveElementToBack(idx, useDeviceTypes);
+      moveElementToBack(idx, useDeviceLocs);
+      moveElementToBack(idx, useDeviceSymbols);
+      it = clauseOps.useDevicePtrVars.erase(it);
+      continue;
     }
+    ++it;
   }
-  return nullptr;
 }
 
-// for a logical operator 'op' reduction X = X op Y
-// This function returns the operation responsible for converting Y from
-// fir.logical<4> to i1
-static fir::ConvertOp getConvertFromReductionOp(mlir::Operation *reductionOp,
-                                                mlir::Value loadVal) {
-  for (mlir::Value reductionOperand : reductionOp->getOperands()) {
-    if (auto convertOp =
-            mlir::dyn_cast<fir::ConvertOp>(reductionOperand.getDefiningOp())) {
-      if (convertOp.getOperand() == loadVal)
-        continue;
-      return convertOp;
+/// Extract the list of function and variable symbols affected by the given
+/// 'declare target' directive and return the intended device type for them.
+static void getDeclareTargetInfo(
+    Fortran::lower::AbstractConverter &converter,
+    Fortran::semantics::SemanticsContext &semaCtx,
+    Fortran::lower::pft::Evaluation &eval,
+    const Fortran::parser::OpenMPDeclareTargetConstruct &declareTargetConstruct,
+    mlir::omp::DeclareTargetClauseOps &clauseOps,
+    llvm::SmallVectorImpl<DeclareTargetCapturePair> &symbolAndClause) {
+  const auto &spec = std::get<Fortran::parser::OmpDeclareTargetSpecifier>(
+      declareTargetConstruct.t);
+  if (const auto *objectList{
+          Fortran::parser::Unwrap<Fortran::parser::OmpObjectList>(spec.u)}) {
+    ObjectList objects{makeObjects(*objectList, semaCtx)};
+    // Case: declare target(func, var1, var2)
+    gatherFuncAndVarSyms(objects, mlir::omp::DeclareTargetCaptureClause::to,
+                         symbolAndClause);
+  } else if (const auto *clauseList{
+                 Fortran::parser::Unwrap<Fortran::parser::OmpClauseList>(
+                     spec.u)}) {
+    if (clauseList->v.empty()) {
+      // Case: declare target, implicit capture of function
+      symbolAndClause.emplace_back(
+          mlir::omp::DeclareTargetCaptureClause::to,
+          eval.getOwningProcedure()->getSubprogramSymbol());
     }
+
+    ClauseProcessor cp(converter, semaCtx, *clauseList);
+    cp.processDeviceType(clauseOps);
+    cp.processEnter(symbolAndClause);
+    cp.processLink(symbolAndClause);
+    cp.processTo(symbolAndClause);
+
+    cp.processTODO<clause::Indirect>(converter.getCurrentLocation(),
+                                     llvm::omp::Directive::OMPD_declare_target);
   }
-  return nullptr;
 }
 
-static void updateReduction(mlir::Operation *op,
-                            fir::FirOpBuilder &firOpBuilder,
-                            mlir::Value loadVal, mlir::Value reductionVal,
-                            fir::ConvertOp *convertOp = nullptr) {
-  mlir::OpBuilder::InsertPoint insertPtDel = firOpBuilder.saveInsertionPoint();
-  firOpBuilder.setInsertionPoint(op);
+static void collectDeferredDeclareTargets(
+    Fortran::lower::AbstractConverter &converter,
+    Fortran::semantics::SemanticsContext &semaCtx,
+    Fortran::lower::pft::Evaluation &eval,
+    const Fortran::parser::OpenMPDeclareTargetConstruct &declareTargetConstruct,
+    llvm::SmallVectorImpl<Fortran::lower::OMPDeferredDeclareTargetInfo>
+        &deferredDeclareTarget) {
+  mlir::omp::DeclareTargetClauseOps clauseOps;
+  llvm::SmallVector<DeclareTargetCapturePair> symbolAndClause;
+  getDeclareTargetInfo(converter, semaCtx, eval, declareTargetConstruct,
+                       clauseOps, symbolAndClause);
+  // Return the device type only if at least one of the targets for the
+  // directive is a function or subroutine
+  mlir::ModuleOp mod = converter.getFirOpBuilder().getModule();
 
-  mlir::Value reductionOp;
-  if (convertOp)
-    reductionOp = convertOp->getOperand();
-  else if (op->getOperand(0) == loadVal)
-    reductionOp = op->getOperand(1);
-  else
-    reductionOp = op->getOperand(0);
-
-  firOpBuilder.create<mlir::omp::ReductionOp>(op->getLoc(), reductionOp,
-                                              reductionVal);
-  firOpBuilder.restoreInsertionPoint(insertPtDel);
-}
-
-static void removeStoreOp(mlir::Operation *reductionOp, mlir::Value symVal) {
-  for (mlir::Operation *reductionOpUse : reductionOp->getUsers()) {
-    if (auto convertReduction =
-            mlir::dyn_cast<fir::ConvertOp>(reductionOpUse)) {
-      for (mlir::Operation *convertReductionUse :
-           convertReduction.getRes().getUsers()) {
-        if (auto storeOp = mlir::dyn_cast<fir::StoreOp>(convertReductionUse)) {
-          if (storeOp.getMemref() == symVal)
-            storeOp.erase();
-        }
-        if (auto assignOp =
-                mlir::dyn_cast<hlfir::AssignOp>(convertReductionUse)) {
-          if (assignOp.getLhs() == symVal)
-            assignOp.erase();
-        }
-      }
+  for (const DeclareTargetCapturePair &symClause : symbolAndClause) {
+    mlir::Operation *op = mod.lookupSymbol(converter.mangleName(
+        std::get<const Fortran::semantics::Symbol &>(symClause)));
+
+    if (!op) {
+      deferredDeclareTarget.push_back({std::get<0>(symClause),
+                                       clauseOps.deviceType,
+                                       std::get<1>(symClause)});
     }
   }
 }
 
-// Generate an OpenMP reduction operation.
-// TODO: Currently assumes it is either an integer addition/multiplication
-// reduction, or a logical and reduction. Generalize this for various reduction
-// operation types.
-// TODO: Generate the reduction operation during lowering instead of creating
-// and removing operations since this is not a robust approach. Also, removing
-// ops in the builder (instead of a rewriter) is probably not the best approach.
-static void
-genOpenMPReduction(Fortran::lower::AbstractConverter &converter,
-                   Fortran::semantics::SemanticsContext &semaCtx,
-                   const Fortran::parser::OmpClauseList &clauseList) {
+static std::optional<mlir::omp::DeclareTargetDeviceType>
+getDeclareTargetFunctionDevice(
+    Fortran::lower::AbstractConverter &converter,
+    Fortran::semantics::SemanticsContext &semaCtx,
+    Fortran::lower::pft::Evaluation &eval,
+    const Fortran::parser::OpenMPDeclareTargetConstruct
+        &declareTargetConstruct) {
+  mlir::omp::DeclareTargetClauseOps clauseOps;
+  llvm::SmallVector<DeclareTargetCapturePair> symbolAndClause;
+  getDeclareTargetInfo(converter, semaCtx, eval, declareTargetConstruct,
+                       clauseOps, symbolAndClause);
+
+  // Return the device type only if at least one of the targets for the
+  // directive is a function or subroutine
+  mlir::ModuleOp mod = converter.getFirOpBuilder().getModule();
+  for (const DeclareTargetCapturePair &symClause : symbolAndClause) {
+    mlir::Operation *op = mod.lookupSymbol(converter.mangleName(
+        std::get<const Fortran::semantics::Symbol &>(symClause)));
+
+    if (mlir::isa_and_nonnull<mlir::func::FuncOp>(op))
+      return clauseOps.deviceType;
+  }
+
+  return std::nullopt;
+}
+
+static llvm::SmallVector<const Fortran::semantics::Symbol *>
+genLoopVars(mlir::Operation *op, Fortran::lower::AbstractConverter &converter,
+            mlir::Location &loc,
+            llvm::ArrayRef<const Fortran::semantics::Symbol *> args) {
   fir::FirOpBuilder &firOpBuilder = converter.getFirOpBuilder();
+  auto &region = op->getRegion(0);
 
-  List<Clause> clauses{makeClauses(clauseList, semaCtx)};
-
-  for (const Clause &clause : clauses) {
-    if (const auto &reductionClause =
-            std::get_if<clause::Reduction>(&clause.u)) {
-      const auto &redOperatorList{
-          std::get<clause::Reduction::ReductionIdentifiers>(
-              reductionClause->t)};
-      assert(redOperatorList.size() == 1 && "Expecting single operator");
-      const auto &redOperator = redOperatorList.front();
-      const auto &objects{std::get<ObjectList>(reductionClause->t)};
-      if (const auto *reductionOp =
-              std::get_if<clause::DefinedOperator>(&redOperator.u)) {
-        const auto &intrinsicOp{
-            std::get<clause::DefinedOperator::IntrinsicOperator>(
-                reductionOp->u)};
-
-        switch (intrinsicOp) {
-        case clause::DefinedOperator::IntrinsicOperator::Add:
-        case clause::DefinedOperator::IntrinsicOperator::Multiply:
-        case clause::DefinedOperator::IntrinsicOperator::AND:
-        case clause::DefinedOperator::IntrinsicOperator::EQV:
-        case clause::DefinedOperator::IntrinsicOperator::OR:
-        case clause::DefinedOperator::IntrinsicOperator::NEQV:
-          break;
-        default:
-          continue;
-        }
-        for (const Object &object : objects) {
-          if (const Fortran::semantics::Symbol *symbol = object.id()) {
-            mlir::Value reductionVal = converter.getSymbolAddress(*symbol);
-            if (auto declOp = reductionVal.getDefiningOp<hlfir::DeclareOp>())
-              reductionVal = declOp.getBase();
-            mlir::Type reductionType =
-                reductionVal.getType().cast<fir::ReferenceType>().getEleTy();
-            if (!reductionType.isa<fir::LogicalType>()) {
-              if (!reductionType.isIntOrIndexOrFloat())
-                continue;
-            }
-            for (mlir::OpOperand &reductionValUse : reductionVal.getUses()) {
-              if (auto loadOp =
-                      mlir::dyn_cast<fir::LoadOp>(reductionValUse.getOwner())) {
-                mlir::Value loadVal = loadOp.getRes();
-                if (reductionType.isa<fir::LogicalType>()) {
-                  mlir::Operation *reductionOp = findReductionChain(loadVal);
-                  fir::ConvertOp convertOp =
-                      getConvertFromReductionOp(reductionOp, loadVal);
-                  updateReduction(reductionOp, firOpBuilder, loadVal,
-                                  reductionVal, &convertOp);
-                  removeStoreOp(reductionOp, reductionVal);
-                } else if (mlir::Operation *reductionOp =
-                               findReductionChain(loadVal, &reductionVal)) {
-                  updateReduction(reductionOp, firOpBuilder, loadVal,
-                                  reductionVal);
-                }
-              }
-            }
-          }
-        }
-      } else if (const auto *reductionIntrinsic =
-                     std::get_if<clause::ProcedureDesignator>(&redOperator.u)) {
-        if (!ReductionProcessor::supportedIntrinsicProcReduction(
-                *reductionIntrinsic))
-          continue;
-        ReductionProcessor::ReductionIdentifier redId =
-            ReductionProcessor::getReductionType(*reductionIntrinsic);
-        for (const Object &object : objects) {
-          if (const Fortran::semantics::Symbol *symbol = object.id()) {
-            mlir::Value reductionVal = converter.getSymbolAddress(*symbol);
-            if (auto declOp = reductionVal.getDefiningOp<hlfir::DeclareOp>())
-              reductionVal = declOp.getBase();
-            for (const mlir::OpOperand &reductionValUse :
-                 reductionVal.getUses()) {
-              if (auto loadOp =
-                      mlir::dyn_cast<fir::LoadOp>(reductionValUse.getOwner())) {
-                mlir::Value loadVal = loadOp.getRes();
-                // Max is lowered as a compare -> select.
-                // Match the pattern here.
-                mlir::Operation *reductionOp =
-                    findReductionChain(loadVal, &reductionVal);
-                if (reductionOp == nullptr)
-                  continue;
-
-                if (redId == ReductionProcessor::ReductionIdentifier::MAX ||
-                    redId == ReductionProcessor::ReductionIdentifier::MIN) {
-                  assert(mlir::isa<mlir::arith::SelectOp>(reductionOp) &&
-                         "Selection Op not found in reduction intrinsic");
-                  mlir::Operation *compareOp =
-                      getCompareFromReductionOp(reductionOp, loadVal);
-                  updateReduction(compareOp, firOpBuilder, loadVal,
-                                  reductionVal);
-                }
-                if (redId == ReductionProcessor::ReductionIdentifier::IOR ||
-                    redId == ReductionProcessor::ReductionIdentifier::IEOR ||
-                    redId == ReductionProcessor::ReductionIdentifier::IAND) {
-                  updateReduction(reductionOp, firOpBuilder, loadVal,
-                                  reductionVal);
-                }
-              }
-            }
-          }
-        }
-      }
+  std::size_t loopVarTypeSize = 0;
+  for (const Fortran::semantics::Symbol *arg : args)
+    loopVarTypeSize = std::max(loopVarTypeSize, arg->GetUltimate().size());
+  mlir::Type loopVarType = getLoopVarType(converter, loopVarTypeSize);
+  llvm::SmallVector<mlir::Type> tiv(args.size(), loopVarType);
+  llvm::SmallVector<mlir::Location> locs(args.size(), loc);
+  firOpBuilder.createBlock(&region, {}, tiv, locs);
+  // The argument is not currently in memory, so make a temporary for the
+  // argument, and store it there, then bind that location to the argument.
+  mlir::Operation *storeOp = nullptr;
+  for (auto [argIndex, argSymbol] : llvm::enumerate(args)) {
+    mlir::Value indexVal = fir::getBase(region.front().getArgument(argIndex));
+    storeOp =
+        createAndSetPrivatizedLoopVar(converter, loc, indexVal, argSymbol);
+  }
+  firOpBuilder.setInsertionPointAfter(storeOp);
+  return llvm::SmallVector<const Fortran::semantics::Symbol *>(args);
+}
+
+static void genReductionVars(
+    mlir::Operation *op, Fortran::lower::AbstractConverter &converter,
+    mlir::Location &loc,
+    llvm::ArrayRef<const Fortran::semantics::Symbol *> reductionArgs,
+    llvm::ArrayRef<mlir::Type> reductionTypes) {
+  fir::FirOpBuilder &firOpBuilder = converter.getFirOpBuilder();
+  llvm::SmallVector<mlir::Location> blockArgLocs(reductionArgs.size(), loc);
+
+  mlir::Block *entryBlock = firOpBuilder.createBlock(
+      &op->getRegion(0), {}, reductionTypes, blockArgLocs);
+
+  // Bind the reduction arguments to their block arguments.
+  for (auto [arg, prv] :
+       llvm::zip_equal(reductionArgs, entryBlock->getArguments())) {
+    converter.bindSymbol(*arg, prv);
+  }
+}
+
+static llvm::SmallVector<const Fortran::semantics::Symbol *>
+genLoopAndReductionVars(
+    mlir::Operation *op, Fortran::lower::AbstractConverter &converter,
+    mlir::Location &loc,
+    llvm::ArrayRef<const Fortran::semantics::Symbol *> loopArgs,
+    llvm::ArrayRef<const Fortran::semantics::Symbol *> reductionArgs,
+    llvm::ArrayRef<mlir::Type> reductionTypes) {
+  fir::FirOpBuilder &firOpBuilder = converter.getFirOpBuilder();
+
+  llvm::SmallVector<mlir::Type> blockArgTypes;
+  llvm::SmallVector<mlir::Location> blockArgLocs;
+  blockArgTypes.reserve(loopArgs.size() + reductionArgs.size());
+  blockArgLocs.reserve(blockArgTypes.size());
+  mlir::Block *entryBlock;
+
+  if (loopArgs.size()) {
+    std::size_t loopVarTypeSize = 0;
+    for (const Fortran::semantics::Symbol *arg : loopArgs)
+      loopVarTypeSize = std::max(loopVarTypeSize, arg->GetUltimate().size());
+    mlir::Type loopVarType = getLoopVarType(converter, loopVarTypeSize);
+    std::fill_n(std::back_inserter(blockArgTypes), loopArgs.size(),
+                loopVarType);
+    std::fill_n(std::back_inserter(blockArgLocs), loopArgs.size(), loc);
+  }
+  if (reductionArgs.size()) {
+    llvm::copy(reductionTypes, std::back_inserter(blockArgTypes));
+    std::fill_n(std::back_inserter(blockArgLocs), reductionArgs.size(), loc);
+  }
+  entryBlock = firOpBuilder.createBlock(&op->getRegion(0), {}, blockArgTypes,
+                                        blockArgLocs);
+  // The argument is not currently in memory, so make a temporary for the
+  // argument, and store it there, then bind that location to the argument.
+  if (loopArgs.size()) {
+    mlir::Operation *storeOp = nullptr;
+    for (auto [argIndex, argSymbol] : llvm::enumerate(loopArgs)) {
+      mlir::Value indexVal =
+          fir::getBase(op->getRegion(0).front().getArgument(argIndex));
+      storeOp =
+          createAndSetPrivatizedLoopVar(converter, loc, indexVal, argSymbol);
     }
+    firOpBuilder.setInsertionPointAfter(storeOp);
+  }
+  // Bind the reduction arguments to their block arguments
+  for (auto [arg, prv] : llvm::zip_equal(
+           reductionArgs,
+           llvm::drop_begin(entryBlock->getArguments(), loopArgs.size()))) {
+    converter.bindSymbol(*arg, prv);
+  }
+
+  return llvm::SmallVector<const Fortran::semantics::Symbol *>(loopArgs);
+}
+
+static void
+markDeclareTarget(mlir::Operation *op,
+                  Fortran::lower::AbstractConverter &converter,
+                  mlir::omp::DeclareTargetCaptureClause captureClause,
+                  mlir::omp::DeclareTargetDeviceType deviceType) {
+  // TODO: Add support for program local variables with declare target applied
+  auto declareTargetOp = llvm::dyn_cast<mlir::omp::DeclareTargetInterface>(op);
+  if (!declareTargetOp)
+    fir::emitFatalError(
+        converter.getCurrentLocation(),
+        "Attempt to apply declare target on unsupported operation");
+
+  // The function or global already has a declare target applied to it, very
+  // likely through implicit capture (usage in another declare target
+  // function/subroutine). It should be marked as any if it has been assigned
+  // both host and nohost, else we skip, as there is no change
+  if (declareTargetOp.isDeclareTarget()) {
+    if (declareTargetOp.getDeclareTargetDeviceType() != deviceType)
+      declareTargetOp.setDeclareTarget(mlir::omp::DeclareTargetDeviceType::any,
+                                       captureClause);
+    return;
   }
+
+  declareTargetOp.setDeclareTarget(deviceType, captureClause);
 }
 
+//===----------------------------------------------------------------------===//
+// Op body generation helper structures and functions
+//===----------------------------------------------------------------------===//
+
 struct OpWithBodyGenInfo {
   /// A type for a code-gen callback function. This takes as argument the op for
   /// which the code is being generated and returns the arguments of the op's
@@ -715,362 +763,6 @@ static void genBodyOfTargetDataOp(
     genNestedEvaluations(converter, eval);
 }
 
-template <typename OpTy, typename... Args>
-static OpTy genOpWithBody(OpWithBodyGenInfo &info, Args &&...args) {
-  auto op = info.converter.getFirOpBuilder().create<OpTy>(
-      info.loc, std::forward<Args>(args)...);
-  createBodyOfOp<OpTy>(op, info);
-  return op;
-}
-
-static mlir::omp::MasterOp
-genMasterOp(Fortran::lower::AbstractConverter &converter,
-            Fortran::semantics::SemanticsContext &semaCtx,
-            Fortran::lower::pft::Evaluation &eval, bool genNested,
-            mlir::Location currentLocation) {
-  return genOpWithBody<mlir::omp::MasterOp>(
-      OpWithBodyGenInfo(converter, semaCtx, currentLocation, eval)
-          .setGenNested(genNested));
-}
-
-static mlir::omp::OrderedRegionOp
-genOrderedRegionOp(Fortran::lower::AbstractConverter &converter,
-                   Fortran::semantics::SemanticsContext &semaCtx,
-                   Fortran::lower::pft::Evaluation &eval, bool genNested,
-                   mlir::Location currentLocation,
-                   const Fortran::parser::OmpClauseList &clauseList) {
-  mlir::omp::OrderedRegionClauseOps clauseOps;
-
-  ClauseProcessor cp(converter, semaCtx, clauseList);
-  cp.processTODO<clause::Simd>(currentLocation,
-                               llvm::omp::Directive::OMPD_ordered);
-
-  return genOpWithBody<mlir::omp::OrderedRegionOp>(
-      OpWithBodyGenInfo(converter, semaCtx, currentLocation, eval)
-          .setGenNested(genNested),
-      clauseOps);
-}
-
-static mlir::omp::ParallelOp
-genParallelOp(Fortran::lower::AbstractConverter &converter,
-              Fortran::lower::SymMap &symTable,
-              Fortran::semantics::SemanticsContext &semaCtx,
-              Fortran::lower::pft::Evaluation &eval, bool genNested,
-              mlir::Location currentLocation,
-              const Fortran::parser::OmpClauseList &clauseList,
-              bool outerCombined = false) {
-  fir::FirOpBuilder &firOpBuilder = converter.getFirOpBuilder();
-  Fortran::lower::StatementContext stmtCtx;
-  mlir::omp::ParallelClauseOps clauseOps;
-  llvm::SmallVector<const Fortran::semantics::Symbol *> privateSyms;
-  llvm::SmallVector<mlir::Type> reductionTypes;
-  llvm::SmallVector<const Fortran::semantics::Symbol *> reductionSyms;
-
-  ClauseProcessor cp(converter, semaCtx, clauseList);
-  cp.processIf(llvm::omp::Directive::OMPD_parallel, clauseOps);
-  cp.processNumThreads(stmtCtx, clauseOps);
-  cp.processProcBind(clauseOps);
-  cp.processDefault();
-  cp.processAllocate(clauseOps);
-
-  if (!outerCombined)
-    cp.processReduction(currentLocation, clauseOps, &reductionTypes,
-                        &reductionSyms);
-
-  if (ReductionProcessor::doReductionByRef(clauseOps.reductionVars))
-    clauseOps.reductionByRefAttr = firOpBuilder.getUnitAttr();
-
-  auto reductionCallback = [&](mlir::Operation *op) {
-    llvm::SmallVector<mlir::Location> locs(clauseOps.reductionVars.size(),
-                                           currentLocation);
-    auto *block =
-        firOpBuilder.createBlock(&op->getRegion(0), {}, reductionTypes, locs);
-    for (auto [arg, prv] :
-         llvm::zip_equal(reductionSyms, block->getArguments())) {
-      converter.bindSymbol(*arg, prv);
-    }
-    return reductionSyms;
-  };
-
-  OpWithBodyGenInfo genInfo =
-      OpWithBodyGenInfo(converter, semaCtx, currentLocation, eval)
-          .setGenNested(genNested)
-          .setOuterCombined(outerCombined)
-          .setClauses(&clauseList)
-          .setReductions(&reductionSyms, &reductionTypes)
-          .setGenRegionEntryCb(reductionCallback);
-
-  if (!enableDelayedPrivatization)
-    return genOpWithBody<mlir::omp::ParallelOp>(genInfo, clauseOps);
-
-  bool privatize = !outerCombined;
-  DataSharingProcessor dsp(converter, semaCtx, clauseList, eval,
-                           /*useDelayedPrivatization=*/true, &symTable);
-
-  if (privatize)
-    dsp.processStep1(&clauseOps, &privateSyms);
-
-  auto genRegionEntryCB = [&](mlir::Operation *op) {
-    auto parallelOp = llvm::cast<mlir::omp::ParallelOp>(op);
-
-    llvm::SmallVector<mlir::Location> reductionLocs(
-        clauseOps.reductionVars.size(), currentLocation);
-
-    mlir::OperandRange privateVars = parallelOp.getPrivateVars();
-    mlir::Region &region = parallelOp.getRegion();
-
-    llvm::SmallVector<mlir::Type> privateVarTypes = reductionTypes;
-    privateVarTypes.reserve(privateVarTypes.size() + privateVars.size());
-    llvm::transform(privateVars, std::back_inserter(privateVarTypes),
-                    [](mlir::Value v) { return v.getType(); });
-
-    llvm::SmallVector<mlir::Location> privateVarLocs = reductionLocs;
-    privateVarLocs.reserve(privateVarLocs.size() + privateVars.size());
-    llvm::transform(privateVars, std::back_inserter(privateVarLocs),
-                    [](mlir::Value v) { return v.getLoc(); });
-
-    firOpBuilder.createBlock(&region, /*insertPt=*/{}, privateVarTypes,
-                             privateVarLocs);
-
-    llvm::SmallVector<const Fortran::semantics::Symbol *> allSymbols =
-        reductionSyms;
-    allSymbols.append(privateSyms);
-    for (auto [arg, prv] : llvm::zip_equal(allSymbols, region.getArguments())) {
-      converter.bindSymbol(*arg, prv);
-    }
-
-    return allSymbols;
-  };
-
-  // TODO Merge with the reduction CB.
-  genInfo.setGenRegionEntryCb(genRegionEntryCB).setDataSharingProcessor(&dsp);
-  return genOpWithBody<mlir::omp::ParallelOp>(genInfo, clauseOps);
-}
-
-static mlir::omp::SectionOp
-genSectionOp(Fortran::lower::AbstractConverter &converter,
-             Fortran::semantics::SemanticsContext &semaCtx,
-             Fortran::lower::pft::Evaluation &eval, bool genNested,
-             mlir::Location currentLocation,
-             const Fortran::parser::OmpClauseList &sectionsClauseList) {
-  // Currently only private/firstprivate clause is handled, and
-  // all privatization is done within `omp.section` operations.
-  return genOpWithBody<mlir::omp::SectionOp>(
-      OpWithBodyGenInfo(converter, semaCtx, currentLocation, eval)
-          .setGenNested(genNested)
-          .setClauses(&sectionsClauseList));
-}
-
-static mlir::omp::SingleOp
-genSingleOp(Fortran::lower::AbstractConverter &converter,
-            Fortran::semantics::SemanticsContext &semaCtx,
-            Fortran::lower::pft::Evaluation &eval, bool genNested,
-            mlir::Location currentLocation,
-            const Fortran::parser::OmpClauseList &beginClauseList,
-            const Fortran::parser::OmpClauseList &endClauseList) {
-  mlir::omp::SingleClauseOps clauseOps;
-
-  ClauseProcessor cp(converter, semaCtx, beginClauseList);
-  cp.processAllocate(clauseOps);
-  // TODO Support delayed privatization.
-
-  ClauseProcessor ecp(converter, semaCtx, endClauseList);
-  ecp.processNowait(clauseOps);
-  ecp.processCopyprivate(currentLocation, clauseOps);
-
-  return genOpWithBody<mlir::omp::SingleOp>(
-      OpWithBodyGenInfo(converter, semaCtx, currentLocation, eval)
-          .setGenNested(genNested)
-          .setClauses(&beginClauseList),
-      clauseOps);
-}
-
-static mlir::omp::TaskOp
-genTaskOp(Fortran::lower::AbstractConverter &converter,
-          Fortran::semantics::SemanticsContext &semaCtx,
-          Fortran::lower::pft::Evaluation &eval, bool genNested,
-          mlir::Location currentLocation,
-          const Fortran::parser::OmpClauseList &clauseList) {
-  Fortran::lower::StatementContext stmtCtx;
-  mlir::omp::TaskClauseOps clauseOps;
-
-  ClauseProcessor cp(converter, semaCtx, clauseList);
-  cp.processIf(llvm::omp::Directive::OMPD_task, clauseOps);
-  cp.processAllocate(clauseOps);
-  cp.processDefault();
-  cp.processFinal(stmtCtx, clauseOps);
-  cp.processUntied(clauseOps);
-  cp.processMergeable(clauseOps);
-  cp.processPriority(stmtCtx, clauseOps);
-  cp.processDepend(clauseOps);
-  // TODO Support delayed privatization.
-
-  cp.processTODO<clause::InReduction, clause::Detach, clause::Affinity>(
-      currentLocation, llvm::omp::Directive::OMPD_task);
-
-  return genOpWithBody<mlir::omp::TaskOp>(
-      OpWithBodyGenInfo(converter, semaCtx, currentLocation, eval)
-          .setGenNested(genNested)
-          .setClauses(&clauseList),
-      clauseOps);
-}
-
-static mlir::omp::TaskgroupOp
-genTaskgroupOp(Fortran::lower::AbstractConverter &converter,
-               Fortran::semantics::SemanticsContext &semaCtx,
-               Fortran::lower::pft::Evaluation &eval, bool genNested,
-               mlir::Location currentLocation,
-               const Fortran::parser::OmpClauseList &clauseList) {
-  mlir::omp::TaskgroupClauseOps clauseOps;
-
-  ClauseProcessor cp(converter, semaCtx, clauseList);
-  cp.processAllocate(clauseOps);
-  cp.processTODO<clause::TaskReduction>(currentLocation,
-                                        llvm::omp::Directive::OMPD_taskgroup);
-
-  return genOpWithBody<mlir::omp::TaskgroupOp>(
-      OpWithBodyGenInfo(converter, semaCtx, currentLocation, eval)
-          .setGenNested(genNested)
-          .setClauses(&clauseList),
-      clauseOps);
-}
-
-// This helper function implements the functionality of "promoting"
-// non-CPTR arguments of use_device_ptr to use_device_addr
-// arguments (automagic conversion of use_device_ptr ->
-// use_device_addr in these cases). The way we do so currently is
-// through the shuffling of operands from the devicePtrOperands to
-// deviceAddrOperands where neccesary and re-organizing the types,
-// locations and symbols to maintain the correct ordering of ptr/addr
-// input -> BlockArg.
-//
-// This effectively implements some deprecated OpenMP functionality
-// that some legacy applications unfortunately depend on
-// (deprecated in specification version 5.2):
-//
-// "If a list item in a use_device_ptr clause is not of type C_PTR,
-//  the behavior is as if the list item appeared in a use_device_addr
-//  clause. Support for such list items in a use_device_ptr clause
-//  is deprecated."
-static void promoteNonCPtrUseDevicePtrArgsToUseDeviceAddr(
-    mlir::omp::UseDeviceClauseOps &clauseOps,
-    llvm::SmallVectorImpl<mlir::Type> &useDeviceTypes,
-    llvm::SmallVectorImpl<mlir::Location> &useDeviceLocs,
-    llvm::SmallVectorImpl<const Fortran::semantics::Symbol *>
-        &useDeviceSymbols) {
-  auto moveElementToBack = [](size_t idx, auto &vector) {
-    auto *iter = std::next(vector.begin(), idx);
-    vector.push_back(*iter);
-    vector.erase(iter);
-  };
-
-  // Iterate over our use_device_ptr list and shift all non-cptr arguments into
-  // use_device_addr.
-  for (auto *it = clauseOps.useDevicePtrVars.begin();
-       it != clauseOps.useDevicePtrVars.end();) {
-    if (!fir::isa_builtin_cptr_type(fir::unwrapRefType(it->getType()))) {
-      clauseOps.useDeviceAddrVars.push_back(*it);
-      // We have to shuffle the symbols around as well, to maintain
-      // the correct Input -> BlockArg for use_device_ptr/use_device_addr.
-      // NOTE: However, as map's do not seem to be included currently
-      // this isn't as pertinent, but we must try to maintain for
-      // future alterations. I believe the reason they are not currently
-      // is that the BlockArg assign/lowering needs to be extended
-      // to a greater set of types.
-      auto idx = std::distance(clauseOps.useDevicePtrVars.begin(), it);
-      moveElementToBack(idx, useDeviceTypes);
-      moveElementToBack(idx, useDeviceLocs);
-      moveElementToBack(idx, useDeviceSymbols);
-      it = clauseOps.useDevicePtrVars.erase(it);
-      continue;
-    }
-    ++it;
-  }
-}
-
-static mlir::omp::TargetDataOp
-genTargetDataOp(Fortran::lower::AbstractConverter &converter,
-                Fortran::semantics::SemanticsContext &semaCtx,
-                Fortran::lower::pft::Evaluation &eval, bool genNested,
-                mlir::Location currentLocation,
-                const Fortran::parser::OmpClauseList &clauseList) {
-  Fortran::lower::StatementContext stmtCtx;
-  mlir::omp::TargetDataClauseOps clauseOps;
-  llvm::SmallVector<mlir::Type> useDeviceTypes;
-  llvm::SmallVector<mlir::Location> useDeviceLocs;
-  llvm::SmallVector<const Fortran::semantics::Symbol *> useDeviceSyms;
-
-  ClauseProcessor cp(converter, semaCtx, clauseList);
-  cp.processIf(llvm::omp::Directive::OMPD_target_data, clauseOps);
-  cp.processDevice(stmtCtx, clauseOps);
-  cp.processUseDevicePtr(clauseOps, useDeviceTypes, useDeviceLocs,
-                         useDeviceSyms);
-  cp.processUseDeviceAddr(clauseOps, useDeviceTypes, useDeviceLocs,
-                          useDeviceSyms);
-
-  // This function implements the deprecated functionality of use_device_ptr
-  // that allows users to provide non-CPTR arguments to it with the caveat
-  // that the compiler will treat them as use_device_addr. A lot of legacy
-  // code may still depend on this functionality, so we should support it
-  // in some manner. We do so currently by simply shifting non-cptr operands
-  // from the use_device_ptr list into the front of the use_device_addr list
-  // whilst maintaining the ordering of useDeviceLocs, useDeviceSymbols and
-  // useDeviceTypes to use_device_ptr/use_device_addr input for BlockArg
-  // ordering.
-  // TODO: Perhaps create a user provideable compiler option that will
-  // re-introduce a hard-error rather than a warning in these cases.
-  promoteNonCPtrUseDevicePtrArgsToUseDeviceAddr(clauseOps, useDeviceTypes,
-                                                useDeviceLocs, useDeviceSyms);
-  cp.processMap(currentLocation, llvm::omp::Directive::OMPD_target_data,
-                stmtCtx, clauseOps);
-
-  auto dataOp = converter.getFirOpBuilder().create<mlir::omp::TargetDataOp>(
-      currentLocation, clauseOps);
-
-  genBodyOfTargetDataOp(converter, semaCtx, eval, genNested, dataOp,
-                        useDeviceTypes, useDeviceLocs, useDeviceSyms,
-                        currentLocation);
-  return dataOp;
-}
-
-template <typename OpTy>
-static OpTy genTargetEnterExitDataUpdateOp(
-    Fortran::lower::AbstractConverter &converter,
-    Fortran::semantics::SemanticsContext &semaCtx,
-    mlir::Location currentLocation,
-    const Fortran::parser::OmpClauseList &clauseList) {
-  fir::FirOpBuilder &firOpBuilder = converter.getFirOpBuilder();
-  Fortran::lower::StatementContext stmtCtx;
-  mlir::omp::TargetEnterExitUpdateDataClauseOps clauseOps;
-
-  // GCC 9.3.0 emits a (probably) bogus warning about an unused variable.
-  [[maybe_unused]] llvm::omp::Directive directive;
-  if constexpr (std::is_same_v<OpTy, mlir::omp::TargetEnterDataOp>) {
-    directive = llvm::omp::Directive::OMPD_target_enter_data;
-  } else if constexpr (std::is_same_v<OpTy, mlir::omp::TargetExitDataOp>) {
-    directive = llvm::omp::Directive::OMPD_target_exit_data;
-  } else if constexpr (std::is_same_v<OpTy, mlir::omp::TargetUpdateOp>) {
-    directive = llvm::omp::Directive::OMPD_target_update;
-  } else {
-    return nullptr;
-  }
-
-  ClauseProcessor cp(converter, semaCtx, clauseList);
-  cp.processIf(directive, clauseOps);
-  cp.processDevice(stmtCtx, clauseOps);
-  cp.processDepend(clauseOps);
-  cp.processNowait(clauseOps);
-
-  if constexpr (std::is_same_v<OpTy, mlir::omp::TargetUpdateOp>) {
-    cp.processMotionClauses<clause::To>(stmtCtx, clauseOps);
-    cp.processMotionClauses<clause::From>(stmtCtx, clauseOps);
-  } else {
-    cp.processMap(currentLocation, directive, stmtCtx, clauseOps);
-  }
-
-  return firOpBuilder.create<OpTy>(currentLocation, clauseOps);
-}
-
 // This functions creates a block for the body of the targetOp's region. It adds
 // all the symbols present in mapSymbols as block arguments to this block.
 static void
@@ -1225,38 +917,583 @@ genBodyOfTargetOp(Fortran::lower::AbstractConverter &converter,
     genNestedEvaluations(converter, eval);
 }
 
+template <typename OpTy, typename... Args>
+static OpTy genOpWithBody(OpWithBodyGenInfo &info, Args &&...args) {
+  auto op = info.converter.getFirOpBuilder().create<OpTy>(
+      info.loc, std::forward<Args>(args)...);
+  createBodyOfOp<OpTy>(op, info);
+  return op;
+}
+
+//===----------------------------------------------------------------------===//
+// Code generation functions for clauses
+//===----------------------------------------------------------------------===//
+
+static void genCriticalDeclareClauses(
+    Fortran::lower::AbstractConverter &converter,
+    Fortran::semantics::SemanticsContext &semaCtx,
+    const Fortran::parser::OmpClauseList &clauses, mlir::Location loc,
+    mlir::omp::CriticalClauseOps &clauseOps, llvm::StringRef name) {
+  ClauseProcessor cp(converter, semaCtx, clauses);
+  cp.processHint(clauseOps);
+  clauseOps.nameAttr =
+      mlir::StringAttr::get(converter.getFirOpBuilder().getContext(), name);
+}
+
+static void genFlushClauses(
+    Fortran::lower::AbstractConverter &converter,
+    Fortran::semantics::SemanticsContext &semaCtx,
+    const std::optional<Fortran::parser::OmpObjectList> &objects,
+    const std::optional<std::list<Fortran::parser::OmpMemoryOrderClause>>
+        &clauses,
+    mlir::Location loc, llvm::SmallVectorImpl<mlir::Value> &operandRange) {
+  if (objects)
+    genObjectList2(*objects, converter, operandRange);
+
+  if (clauses && clauses->size() > 0)
+    TODO(converter.getCurrentLocation(), "Handle OmpMemoryOrderClause");
+}
+
+static void
+genOrderedRegionClauses(Fortran::lower::AbstractConverter &converter,
+                        Fortran::semantics::SemanticsContext &semaCtx,
+                        const Fortran::parser::OmpClauseList &clauses,
+                        mlir::Location loc,
+                        mlir::omp::OrderedRegionClauseOps &clauseOps) {
+  ClauseProcessor cp(converter, semaCtx, clauses);
+  cp.processTODO<clause::Simd>(loc, llvm::omp::Directive::OMPD_ordered);
+}
+
+static void genParallelClauses(
+    Fortran::lower::AbstractConverter &converter,
+    Fortran::semantics::SemanticsContext &semaCtx,
+    Fortran::lower::StatementContext &stmtCtx,
+    const Fortran::parser::OmpClauseList &clauses, mlir::Location loc,
+    bool processReduction, mlir::omp::ParallelClauseOps &clauseOps,
+    llvm::SmallVectorImpl<mlir::Type> &reductionTypes,
+    llvm::SmallVectorImpl<const Fortran::semantics::Symbol *> &reductionSyms) {
+  ClauseProcessor cp(converter, semaCtx, clauses);
+  cp.processAllocate(clauseOps);
+  cp.processDefault();
+  cp.processIf(llvm::omp::Directive::OMPD_parallel, clauseOps);
+  cp.processNumThreads(stmtCtx, clauseOps);
+  cp.processProcBind(clauseOps);
+
+  if (processReduction) {
+    cp.processReduction(loc, clauseOps, &reductionTypes, &reductionSyms);
+    if (ReductionProcessor::doReductionByRef(clauseOps.reductionVars))
+      clauseOps.reductionByRefAttr = converter.getFirOpBuilder().getUnitAttr();
+  }
+}
+
+static void genSectionsClauses(Fortran::lower::AbstractConverter &converter,
+                               Fortran::semantics::SemanticsContext &semaCtx,
+                               const Fortran::parser::OmpClauseList &clauses,
+                               mlir::Location loc,
+                               bool clausesFromBeginSections,
+                               mlir::omp::SectionsClauseOps &clauseOps) {
+  ClauseProcessor cp(converter, semaCtx, clauses);
+  if (clausesFromBeginSections) {
+    cp.processAllocate(clauseOps);
+    cp.processSectionsReduction(loc, clauseOps);
+    // TODO Support delayed privatization.
+  } else {
+    cp.processNowait(clauseOps);
+  }
+}
+
+static void genSimdLoopClauses(
+    Fortran::lower::AbstractConverter &converter,
+    Fortran::semantics::SemanticsContext &semaCtx,
+    Fortran::lower::StatementContext &stmtCtx,
+    Fortran::lower::pft::Evaluation &eval,
+    const Fortran::parser::OmpClauseList &clauses, mlir::Location loc,
+    mlir::omp::SimdLoopClauseOps &clauseOps,
+    llvm::SmallVectorImpl<const Fortran::semantics::Symbol *> &iv) {
+  ClauseProcessor cp(converter, semaCtx, clauses);
+  cp.processCollapse(loc, eval, clauseOps, iv);
+  cp.processIf(llvm::omp::Directive::OMPD_simd, clauseOps);
+  cp.processReduction(loc, clauseOps);
+  cp.processSafelen(clauseOps);
+  cp.processSimdlen(clauseOps);
+  clauseOps.loopInclusiveAttr = converter.getFirOpBuilder().getUnitAttr();
+  // TODO Support delayed privatization.
+
+  cp.processTODO<clause::Aligned, clause::Allocate, clause::Linear,
+                 clause::Nontemporal, clause::Order>(
+      loc, llvm::omp::Directive::OMPD_simd);
+}
+
+static void genSingleClauses(Fortran::lower::AbstractConverter &converter,
+                             Fortran::semantics::SemanticsContext &semaCtx,
+                             const Fortran::parser::OmpClauseList &beginClauses,
+                             const Fortran::parser::OmpClauseList &endClauses,
+                             mlir::Location loc,
+                             mlir::omp::SingleClauseOps &clauseOps) {
+  ClauseProcessor bcp(converter, semaCtx, beginClauses);
+  bcp.processAllocate(clauseOps);
+  // TODO Support delayed privatization.
+
+  ClauseProcessor ecp(converter, semaCtx, endClauses);
+  ecp.processCopyprivate(loc, clauseOps);
+  ecp.processNowait(clauseOps);
+}
+
+static void genTargetClauses(
+    Fortran::lower::AbstractConverter &converter,
+    Fortran::semantics::SemanticsContext &semaCtx,
+    Fortran::lower::StatementContext &stmtCtx,
+    const Fortran::parser::OmpClauseList &clauses, mlir::Location loc,
+    bool processHostOnlyClauses, bool processReduction,
+    mlir::omp::TargetClauseOps &clauseOps,
+    llvm::SmallVectorImpl<const Fortran::semantics::Symbol *> &mapSyms,
+    llvm::SmallVectorImpl<mlir::Location> &mapLocs,
+    llvm::SmallVectorImpl<mlir::Type> &mapTypes,
+    llvm::SmallVectorImpl<const Fortran::semantics::Symbol *> &deviceAddrSyms,
+    llvm::SmallVectorImpl<mlir::Location> &deviceAddrLocs,
+    llvm::SmallVectorImpl<mlir::Type> &deviceAddrTypes,
+    llvm::SmallVectorImpl<const Fortran::semantics::Symbol *> &devicePtrSyms,
+    llvm::SmallVectorImpl<mlir::Location> &devicePtrLocs,
+    llvm::SmallVectorImpl<mlir::Type> &devicePtrTypes) {
+  ClauseProcessor cp(converter, semaCtx, clauses);
+  cp.processDepend(clauseOps);
+  cp.processDevice(stmtCtx, clauseOps);
+  cp.processHasDeviceAddr(clauseOps, deviceAddrTypes, deviceAddrLocs,
+                          deviceAddrSyms);
+  cp.processIf(llvm::omp::Directive::OMPD_target, clauseOps);
+  cp.processIsDevicePtr(clauseOps, devicePtrTypes, devicePtrLocs,
+                        devicePtrSyms);
+  cp.processMap(loc, stmtCtx, clauseOps, &mapSyms, &mapLocs, &mapTypes);
+  cp.processThreadLimit(stmtCtx, clauseOps);
+  // TODO Support delayed privatization.
+
+  if (processHostOnlyClauses)
+    cp.processNowait(clauseOps);
+
+  cp.processTODO<clause::Allocate, clause::Defaultmap, clause::Firstprivate,
+                 clause::InReduction, clause::Private, clause::Reduction,
+                 clause::UsesAllocators>(loc,
+                                         llvm::omp::Directive::OMPD_target);
+}
+
+static void genTargetDataClauses(
+    Fortran::lower::AbstractConverter &converter,
+    Fortran::semantics::SemanticsContext &semaCtx,
+    Fortran::lower::StatementContext &stmtCtx,
+    const Fortran::parser::OmpClauseList &clauses, mlir::Location loc,
+    mlir::omp::TargetDataClauseOps &clauseOps,
+    llvm::SmallVectorImpl<mlir::Type> &useDeviceTypes,
+    llvm::SmallVectorImpl<mlir::Location> &useDeviceLocs,
+    llvm::SmallVectorImpl<const Fortran::semantics::Symbol *> &useDeviceSyms) {
+  ClauseProcessor cp(converter, semaCtx, clauses);
+  cp.processDevice(stmtCtx, clauseOps);
+  cp.processIf(llvm::omp::Directive::OMPD_target_data, clauseOps);
+  cp.processMap(loc, stmtCtx, clauseOps);
+  cp.processUseDeviceAddr(clauseOps, useDeviceTypes, useDeviceLocs,
+                          useDeviceSyms);
+  cp.processUseDevicePtr(clauseOps, useDeviceTypes, useDeviceLocs,
+                         useDeviceSyms);
+
+  // This function implements the deprecated functionality of use_device_ptr
+  // that allows users to provide non-CPTR arguments to it with the caveat
+  // that the compiler will treat them as use_device_addr. A lot of legacy
+  // code may still depend on this functionality, so we should support it
+  // in some manner. We do so currently by simply shifting non-cptr operands
+  // from the use_device_ptr list into the front of the use_device_addr list
+  // whilst maintaining the ordering of useDeviceLocs, useDeviceSyms and
+  // useDeviceTypes to use_device_ptr/use_device_addr input for BlockArg
+  // ordering.
+  // TODO: Perhaps create a user provideable compiler option that will
+  // re-introduce a hard-error rather than a warning in these cases.
+  promoteNonCPtrUseDevicePtrArgsToUseDeviceAddr(clauseOps, useDeviceTypes,
+                                                useDeviceLocs, useDeviceSyms);
+}
+
+static void genTargetEnterExitUpdateDataClauses(
+    Fortran::lower::AbstractConverter &converter,
+    Fortran::semantics::SemanticsContext &semaCtx,
+    Fortran::lower::StatementContext &stmtCtx,
+    const Fortran::parser::OmpClauseList &clauses, mlir::Location loc,
+    llvm::omp::Directive directive,
+    mlir::omp::TargetEnterExitUpdateDataClauseOps &clauseOps) {
+  ClauseProcessor cp(converter, semaCtx, clauses);
+  cp.processDepend(clauseOps);
+  cp.processDevice(stmtCtx, clauseOps);
+  cp.processIf(directive, clauseOps);
+  cp.processNowait(clauseOps);
+
+  if (directive == llvm::omp::Directive::OMPD_target_update) {
+    cp.processMotionClauses<clause::To>(stmtCtx, clauseOps);
+    cp.processMotionClauses<clause::From>(stmtCtx, clauseOps);
+  } else {
+    cp.processMap(loc, stmtCtx, clauseOps);
+  }
+}
+
+static void genTaskClauses(Fortran::lower::AbstractConverter &converter,
+                           Fortran::semantics::SemanticsContext &semaCtx,
+                           Fortran::lower::StatementContext &stmtCtx,
+                           const Fortran::parser::OmpClauseList &clauses,
+                           mlir::Location loc,
+                           mlir::omp::TaskClauseOps &clauseOps) {
+  ClauseProcessor cp(converter, semaCtx, clauses);
+  cp.processAllocate(clauseOps);
+  cp.processDefault();
+  cp.processDepend(clauseOps);
+  cp.processFinal(stmtCtx, clauseOps);
+  cp.processIf(llvm::omp::Directive::OMPD_task, clauseOps);
+  cp.processMergeable(clauseOps);
+  cp.processPriority(stmtCtx, clauseOps);
+  cp.processUntied(clauseOps);
+  // TODO Support delayed privatization.
+
+  cp.processTODO<clause::Affinity, clause::Detach, clause::InReduction>(
+      loc, llvm::omp::Directive::OMPD_task);
+}
+
+static void genTaskgroupClauses(Fortran::lower::AbstractConverter &converter,
+                                Fortran::semantics::SemanticsContext &semaCtx,
+                                const Fortran::parser::OmpClauseList &clauses,
+                                mlir::Location loc,
+                                mlir::omp::TaskgroupClauseOps &clauseOps) {
+  ClauseProcessor cp(converter, semaCtx, clauses);
+  cp.processAllocate(clauseOps);
+
+  cp.processTODO<clause::TaskReduction>(loc,
+                                        llvm::omp::Directive::OMPD_taskgroup);
+}
+
+static void genTaskwaitClauses(Fortran::lower::AbstractConverter &converter,
+                               Fortran::semantics::SemanticsContext &semaCtx,
+                               const Fortran::parser::OmpClauseList &clauses,
+                               mlir::Location loc,
+                               mlir::omp::TaskwaitClauseOps &clauseOps) {
+  ClauseProcessor cp(converter, semaCtx, clauses);
+  cp.processTODO<clause::Depend, clause::Nowait>(
+      loc, llvm::omp::Directive::OMPD_taskwait);
+}
+
+static void genTeamsClauses(Fortran::lower::AbstractConverter &converter,
+                            Fortran::semantics::SemanticsContext &semaCtx,
+                            Fortran::lower::StatementContext &stmtCtx,
+                            const Fortran::parser::OmpClauseList &clauses,
+                            mlir::Location loc,
+                            mlir::omp::TeamsClauseOps &clauseOps) {
+  ClauseProcessor cp(converter, semaCtx, clauses);
+  cp.processAllocate(clauseOps);
+  cp.processDefault();
+  cp.processIf(llvm::omp::Directive::OMPD_teams, clauseOps);
+  cp.processNumTeams(stmtCtx, clauseOps);
+  cp.processThreadLimit(stmtCtx, clauseOps);
+  // TODO Support delayed privatization.
+
+  cp.processTODO<clause::Reduction>(loc, llvm::omp::Directive::OMPD_teams);
+}
+
+static void genWsloopClauses(
+    Fortran::lower::AbstractConverter &converter,
+    Fortran::semantics::SemanticsContext &semaCtx,
+    Fortran::lower::StatementContext &stmtCtx,
+    Fortran::lower::pft::Evaluation &eval,
+    const Fortran::parser::OmpClauseList &beginClauses,
+    const Fortran::parser::OmpClauseList *endClauses, mlir::Location loc,
+    mlir::omp::WsloopClauseOps &clauseOps,
+    llvm::SmallVectorImpl<const Fortran::semantics::Symbol *> &iv,
+    llvm::SmallVectorImpl<mlir::Type> &reductionTypes,
+    llvm::SmallVectorImpl<const Fortran::semantics::Symbol *> &reductionSyms) {
+  fir::FirOpBuilder &firOpBuilder = converter.getFirOpBuilder();
+  ClauseProcessor bcp(converter, semaCtx, beginClauses);
+  bcp.processCollapse(loc, eval, clauseOps, iv);
+  bcp.processOrdered(clauseOps);
+  bcp.processReduction(loc, clauseOps, &reductionTypes, &reductionSyms);
+  bcp.processSchedule(stmtCtx, clauseOps);
+  clauseOps.loopInclusiveAttr = firOpBuilder.getUnitAttr();
+  // TODO Support delayed privatization.
+
+  if (ReductionProcessor::doReductionByRef(clauseOps.reductionVars))
+    clauseOps.reductionByRefAttr = firOpBuilder.getUnitAttr();
+
+  if (endClauses) {
+    ClauseProcessor ecp(converter, semaCtx, *endClauses);
+    ecp.processNowait(clauseOps);
+  }
+
+  bcp.processTODO<clause::Allocate, clause::Linear, clause::Order>(
+      loc, llvm::omp::Directive::OMPD_do);
+}
+
+//===----------------------------------------------------------------------===//
+// Code generation functions for leaf constructs
+//===----------------------------------------------------------------------===//
+
+static mlir::omp::BarrierOp
+genBarrierOp(Fortran::lower::AbstractConverter &converter,
+             Fortran::semantics::SemanticsContext &semaCtx,
+             Fortran::lower::pft::Evaluation &eval, mlir::Location loc) {
+  return converter.getFirOpBuilder().create<mlir::omp::BarrierOp>(loc);
+}
+
+static mlir::omp::CriticalOp
+genCriticalOp(Fortran::lower::AbstractConverter &converter,
+              Fortran::semantics::SemanticsContext &semaCtx,
+              Fortran::lower::pft::Evaluation &eval, bool genNested,
+              mlir::Location loc,
+              const Fortran::parser::OmpClauseList &clauseList,
+              const std::optional<Fortran::parser::Name> &name) {
+  fir::FirOpBuilder &firOpBuilder = converter.getFirOpBuilder();
+  mlir::FlatSymbolRefAttr nameAttr;
+
+  if (name) {
+    std::string nameStr = name->ToString();
+    mlir::ModuleOp mod = firOpBuilder.getModule();
+    auto global = mod.lookupSymbol<mlir::omp::CriticalDeclareOp>(nameStr);
+    if (!global) {
+      mlir::omp::CriticalClauseOps clauseOps;
+      genCriticalDeclareClauses(converter, semaCtx, clauseList, loc, clauseOps,
+                                nameStr);
+
+      mlir::OpBuilder modBuilder(mod.getBodyRegion());
+      global = modBuilder.create<mlir::omp::CriticalDeclareOp>(loc, clauseOps);
+    }
+    nameAttr = mlir::FlatSymbolRefAttr::get(firOpBuilder.getContext(),
+                                            global.getSymName());
+  }
+
+  return genOpWithBody<mlir::omp::CriticalOp>(
+      OpWithBodyGenInfo(converter, semaCtx, loc, eval).setGenNested(genNested),
+      nameAttr);
+}
+
+static mlir::omp::DistributeOp
+genDistributeOp(Fortran::lower::AbstractConverter &converter,
+                Fortran::semantics::SemanticsContext &semaCtx,
+                Fortran::lower::pft::Evaluation &eval, bool genNested,
+                mlir::Location loc,
+                const Fortran::parser::OmpClauseList &clauseList) {
+  TODO(loc, "Distribute construct");
+  return nullptr;
+}
+
+static mlir::omp::FlushOp
+genFlushOp(Fortran::lower::AbstractConverter &converter,
+           Fortran::semantics::SemanticsContext &semaCtx,
+           Fortran::lower::pft::Evaluation &eval, mlir::Location loc,
+           const std::optional<Fortran::parser::OmpObjectList> &objectList,
+           const std::optional<std::list<Fortran::parser::OmpMemoryOrderClause>>
+               &clauseList) {
+  llvm::SmallVector<mlir::Value> operandRange;
+  genFlushClauses(converter, semaCtx, objectList, clauseList, loc,
+                  operandRange);
+
+  return converter.getFirOpBuilder().create<mlir::omp::FlushOp>(
+      converter.getCurrentLocation(), operandRange);
+}
+
+static mlir::omp::MasterOp
+genMasterOp(Fortran::lower::AbstractConverter &converter,
+            Fortran::semantics::SemanticsContext &semaCtx,
+            Fortran::lower::pft::Evaluation &eval, bool genNested,
+            mlir::Location loc) {
+  return genOpWithBody<mlir::omp::MasterOp>(
+      OpWithBodyGenInfo(converter, semaCtx, loc, eval).setGenNested(genNested));
+}
+
+static mlir::omp::OrderedOp
+genOrderedOp(Fortran::lower::AbstractConverter &converter,
+             Fortran::semantics::SemanticsContext &semaCtx,
+             Fortran::lower::pft::Evaluation &eval, mlir::Location loc,
+             const Fortran::parser::OmpClauseList &clauseList) {
+  TODO(loc, "OMPD_ordered");
+  return nullptr;
+}
+
+static mlir::omp::OrderedRegionOp
+genOrderedRegionOp(Fortran::lower::AbstractConverter &converter,
+                   Fortran::semantics::SemanticsContext &semaCtx,
+                   Fortran::lower::pft::Evaluation &eval, bool genNested,
+                   mlir::Location loc,
+                   const Fortran::parser::OmpClauseList &clauseList) {
+  mlir::omp::OrderedRegionClauseOps clauseOps;
+  genOrderedRegionClauses(converter, semaCtx, clauseList, loc, clauseOps);
+
+  return genOpWithBody<mlir::omp::OrderedRegionOp>(
+      OpWithBodyGenInfo(converter, semaCtx, loc, eval).setGenNested(genNested),
+      clauseOps);
+}
+
+static mlir::omp::ParallelOp
+genParallelOp(Fortran::lower::AbstractConverter &converter,
+              Fortran::lower::SymMap &symTable,
+              Fortran::semantics::SemanticsContext &semaCtx,
+              Fortran::lower::pft::Evaluation &eval, bool genNested,
+              mlir::Location loc,
+              const Fortran::parser::OmpClauseList &clauseList,
+              bool outerCombined = false) {
+  fir::FirOpBuilder &firOpBuilder = converter.getFirOpBuilder();
+  Fortran::lower::StatementContext stmtCtx;
+  mlir::omp::ParallelClauseOps clauseOps;
+  llvm::SmallVector<const Fortran::semantics::Symbol *> privateSyms;
+  llvm::SmallVector<mlir::Type> reductionTypes;
+  llvm::SmallVector<const Fortran::semantics::Symbol *> reductionSyms;
+  genParallelClauses(converter, semaCtx, stmtCtx, clauseList, loc,
+                     /*processReduction=*/!outerCombined, clauseOps,
+                     reductionTypes, reductionSyms);
+
+  auto reductionCallback = [&](mlir::Operation *op) {
+    genReductionVars(op, converter, loc, reductionSyms, reductionTypes);
+    return reductionSyms;
+  };
+
+  OpWithBodyGenInfo genInfo =
+      OpWithBodyGenInfo(converter, semaCtx, loc, eval)
+          .setGenNested(genNested)
+          .setOuterCombined(outerCombined)
+          .setClauses(&clauseList)
+          .setReductions(&reductionSyms, &reductionTypes)
+          .setGenRegionEntryCb(reductionCallback);
+
+  if (!enableDelayedPrivatization)
+    return genOpWithBody<mlir::omp::ParallelOp>(genInfo, clauseOps);
+
+  bool privatize = !outerCombined;
+  DataSharingProcessor dsp(converter, semaCtx, clauseList, eval,
+                           /*useDelayedPrivatization=*/true, &symTable);
+
+  if (privatize)
+    dsp.processStep1(&clauseOps, &privateSyms);
+
+  auto genRegionEntryCB = [&](mlir::Operation *op) {
+    auto parallelOp = llvm::cast<mlir::omp::ParallelOp>(op);
+
+    llvm::SmallVector<mlir::Location> reductionLocs(
+        clauseOps.reductionVars.size(), loc);
+
+    mlir::OperandRange privateVars = parallelOp.getPrivateVars();
+    mlir::Region &region = parallelOp.getRegion();
+
+    llvm::SmallVector<mlir::Type> privateVarTypes = reductionTypes;
+    privateVarTypes.reserve(privateVarTypes.size() + privateVars.size());
+    llvm::transform(privateVars, std::back_inserter(privateVarTypes),
+                    [](mlir::Value v) { return v.getType(); });
+
+    llvm::SmallVector<mlir::Location> privateVarLocs = reductionLocs;
+    privateVarLocs.reserve(privateVarLocs.size() + privateVars.size());
+    llvm::transform(privateVars, std::back_inserter(privateVarLocs),
+                    [](mlir::Value v) { return v.getLoc(); });
+
+    firOpBuilder.createBlock(&region, /*insertPt=*/{}, privateVarTypes,
+                             privateVarLocs);
+
+    llvm::SmallVector<const Fortran::semantics::Symbol *> allSymbols =
+        reductionSyms;
+    allSymbols.append(privateSyms);
+    for (auto [arg, prv] : llvm::zip_equal(allSymbols, region.getArguments())) {
+      converter.bindSymbol(*arg, prv);
+    }
+
+    return allSymbols;
+  };
+
+  // TODO Merge with the reduction CB.
+  genInfo.setGenRegionEntryCb(genRegionEntryCB).setDataSharingProcessor(&dsp);
+  return genOpWithBody<mlir::omp::ParallelOp>(genInfo, clauseOps);
+}
+
+static mlir::omp::SectionOp
+genSectionOp(Fortran::lower::AbstractConverter &converter,
+             Fortran::semantics::SemanticsContext &semaCtx,
+             Fortran::lower::pft::Evaluation &eval, bool genNested,
+             mlir::Location loc,
+             const Fortran::parser::OmpClauseList &clauseList) {
+  // Currently only private/firstprivate clause is handled, and
+  // all privatization is done within `omp.section` operations.
+  return genOpWithBody<mlir::omp::SectionOp>(
+      OpWithBodyGenInfo(converter, semaCtx, loc, eval)
+          .setGenNested(genNested)
+          .setClauses(&clauseList));
+}
+
+static mlir::omp::SectionsOp
+genSectionsOp(Fortran::lower::AbstractConverter &converter,
+              Fortran::semantics::SemanticsContext &semaCtx,
+              Fortran::lower::pft::Evaluation &eval, mlir::Location loc,
+              const mlir::omp::SectionsClauseOps &clauseOps) {
+  return genOpWithBody<mlir::omp::SectionsOp>(
+      OpWithBodyGenInfo(converter, semaCtx, loc, eval).setGenNested(false),
+      clauseOps);
+}
+
+static mlir::omp::SimdLoopOp
+genSimdLoopOp(Fortran::lower::AbstractConverter &converter,
+              Fortran::semantics::SemanticsContext &semaCtx,
+              Fortran::lower::pft::Evaluation &eval, mlir::Location loc,
+              const Fortran::parser::OmpClauseList &clauseList) {
+  DataSharingProcessor dsp(converter, semaCtx, clauseList, eval);
+  dsp.processStep1();
+
+  Fortran::lower::StatementContext stmtCtx;
+  mlir::omp::SimdLoopClauseOps clauseOps;
+  llvm::SmallVector<const Fortran::semantics::Symbol *> iv;
+  genSimdLoopClauses(converter, semaCtx, stmtCtx, eval, clauseList, loc,
+                     clauseOps, iv);
+
+  auto *nestedEval =
+      getCollapsedLoopEval(eval, Fortran::lower::getCollapseValue(clauseList));
+
+  auto ivCallback = [&](mlir::Operation *op) {
+    return genLoopVars(op, converter, loc, iv);
+  };
+
+  return genOpWithBody<mlir::omp::SimdLoopOp>(
+      OpWithBodyGenInfo(converter, semaCtx, loc, *nestedEval)
+          .setClauses(&clauseList)
+          .setDataSharingProcessor(&dsp)
+          .setGenRegionEntryCb(ivCallback),
+      clauseOps);
+}
+
+static mlir::omp::SingleOp
+genSingleOp(Fortran::lower::AbstractConverter &converter,
+            Fortran::semantics::SemanticsContext &semaCtx,
+            Fortran::lower::pft::Evaluation &eval, bool genNested,
+            mlir::Location loc,
+            const Fortran::parser::OmpClauseList &beginClauseList,
+            const Fortran::parser::OmpClauseList &endClauseList) {
+  mlir::omp::SingleClauseOps clauseOps;
+  genSingleClauses(converter, semaCtx, beginClauseList, endClauseList, loc,
+                   clauseOps);
+
+  return genOpWithBody<mlir::omp::SingleOp>(
+      OpWithBodyGenInfo(converter, semaCtx, loc, eval)
+          .setGenNested(genNested)
+          .setClauses(&beginClauseList),
+      clauseOps);
+}
+
 static mlir::omp::TargetOp
 genTargetOp(Fortran::lower::AbstractConverter &converter,
             Fortran::semantics::SemanticsContext &semaCtx,
             Fortran::lower::pft::Evaluation &eval, bool genNested,
-            mlir::Location currentLocation,
+            mlir::Location loc,
             const Fortran::parser::OmpClauseList &clauseList,
-            llvm::omp::Directive directive, bool outerCombined = false) {
+            bool outerCombined = false) {
+  fir::FirOpBuilder &firOpBuilder = converter.getFirOpBuilder();
   Fortran::lower::StatementContext stmtCtx;
+
+  bool processHostOnlyClauses =
+      !llvm::cast<mlir::omp::OffloadModuleInterface>(*converter.getModuleOp())
+           .getIsTargetDevice();
+
   mlir::omp::TargetClauseOps clauseOps;
-  llvm::SmallVector<mlir::Type> mapTypes, devicePtrTypes, deviceAddrTypes;
-  llvm::SmallVector<mlir::Location> mapLocs, devicePtrLocs, deviceAddrLocs;
   llvm::SmallVector<const Fortran::semantics::Symbol *> mapSyms, devicePtrSyms,
       deviceAddrSyms;
-
-  ClauseProcessor cp(converter, semaCtx, clauseList);
-  cp.processIf(llvm::omp::Directive::OMPD_target, clauseOps);
-  cp.processDevice(stmtCtx, clauseOps);
-  cp.processThreadLimit(stmtCtx, clauseOps);
-  cp.processDepend(clauseOps);
-  cp.processNowait(clauseOps);
-  cp.processMap(currentLocation, directive, stmtCtx, clauseOps, &mapSyms,
-                &mapLocs, &mapTypes);
-  cp.processIsDevicePtr(clauseOps, devicePtrTypes, devicePtrLocs,
-                        devicePtrSyms);
-  cp.processHasDeviceAddr(clauseOps, deviceAddrTypes, deviceAddrLocs,
-                          deviceAddrSyms);
-  // TODO Support delayed privatization.
-
-  cp.processTODO<clause::Private, clause::Firstprivate, clause::Reduction,
-                 clause::InReduction, clause::Allocate, clause::UsesAllocators,
-                 clause::Defaultmap>(currentLocation,
-                                     llvm::omp::Directive::OMPD_target);
+  llvm::SmallVector<mlir::Location> mapLocs, devicePtrLocs, deviceAddrLocs;
+  llvm::SmallVector<mlir::Type> mapTypes, devicePtrTypes, deviceAddrTypes;
+  genTargetClauses(converter, semaCtx, stmtCtx, clauseList, loc,
+                   processHostOnlyClauses, /*processReduction=*/outerCombined,
+                   clauseOps, mapSyms, mapLocs, mapTypes, deviceAddrSyms,
+                   deviceAddrLocs, deviceAddrTypes, devicePtrSyms,
+                   devicePtrLocs, devicePtrTypes);
 
   // 5.8.1 Implicit Data-Mapping Attribute Rules
   // The following code follows the implicit data-mapping rules to map all the
@@ -1278,22 +1515,21 @@ genTargetOp(Fortran::lower::AbstractConverter &converter,
         fir::ExtendedValue dataExv = converter.getSymbolExtendedValue(sym);
         name << sym.name().ToString();
 
-        Fortran::lower::AddrAndBoundsInfo info =
-            getDataOperandBaseAddr(converter, converter.getFirOpBuilder(), sym,
-                                   converter.getCurrentLocation());
+        Fortran::lower::AddrAndBoundsInfo info = getDataOperandBaseAddr(
+            converter, firOpBuilder, sym, converter.getCurrentLocation());
         if (fir::unwrapRefType(info.addr.getType()).isa<fir::BaseBoxType>())
           bounds =
               Fortran::lower::genBoundsOpsFromBox<mlir::omp::MapBoundsOp,
                                                   mlir::omp::MapBoundsType>(
-                  converter.getFirOpBuilder(), converter.getCurrentLocation(),
-                  converter, dataExv, info);
+                  firOpBuilder, converter.getCurrentLocation(), converter,
+                  dataExv, info);
         if (fir::unwrapRefType(info.addr.getType()).isa<fir::SequenceType>()) {
           bool dataExvIsAssumedSize =
               Fortran::semantics::IsAssumedSizeArray(sym.GetUltimate());
           bounds = Fortran::lower::genBaseBoundsOps<mlir::omp::MapBoundsOp,
                                                     mlir::omp::MapBoundsType>(
-              converter.getFirOpBuilder(), converter.getCurrentLocation(),
-              converter, dataExv, dataExvIsAssumedSize);
+              firOpBuilder, converter.getCurrentLocation(), converter, dataExv,
+              dataExvIsAssumedSize);
         }
 
         llvm::omp::OpenMPOffloadMappingFlags mapFlag =
@@ -1307,7 +1543,7 @@ genTargetOp(Fortran::lower::AbstractConverter &converter,
 
         // If a variable is specified in declare target link and if device
         // type is not specified as `nohost`, it needs to be mapped tofrom
-        mlir::ModuleOp mod = converter.getFirOpBuilder().getModule();
+        mlir::ModuleOp mod = firOpBuilder.getModule();
         mlir::Operation *op = mod.lookupSymbol(converter.mangleName(sym));
         auto declareTargetOp =
             llvm::dyn_cast_if_present<mlir::omp::DeclareTargetInterface>(op);
@@ -1327,8 +1563,8 @@ genTargetOp(Fortran::lower::AbstractConverter &converter,
         }
 
         mlir::Value mapOp = createMapInfoOp(
-            converter.getFirOpBuilder(), baseOp.getLoc(), baseOp, mlir::Value{},
-            name.str(), bounds, {},
+            firOpBuilder, baseOp.getLoc(), baseOp, mlir::Value{}, name.str(),
+            bounds, {},
             static_cast<
                 std::underlying_type_t<llvm::omp::OpenMPOffloadMappingFlags>>(
                 mapFlag),
@@ -1343,338 +1579,144 @@ genTargetOp(Fortran::lower::AbstractConverter &converter,
   };
   Fortran::lower::pft::visitAllSymbols(eval, captureImplicitMap);
 
-  auto targetOp = converter.getFirOpBuilder().create<mlir::omp::TargetOp>(
-      currentLocation, clauseOps);
-
+  auto targetOp = firOpBuilder.create<mlir::omp::TargetOp>(loc, clauseOps);
   genBodyOfTargetOp(converter, semaCtx, eval, genNested, targetOp, mapSyms,
-                    mapLocs, mapTypes, currentLocation);
-
+                    mapLocs, mapTypes, loc);
   return targetOp;
 }
 
-static mlir::omp::TeamsOp
-genTeamsOp(Fortran::lower::AbstractConverter &converter,
-           Fortran::semantics::SemanticsContext &semaCtx,
-           Fortran::lower::pft::Evaluation &eval, bool genNested,
-           mlir::Location currentLocation,
-           const Fortran::parser::OmpClauseList &clauseList,
-           bool outerCombined = false) {
+static mlir::omp::TargetDataOp
+genTargetDataOp(Fortran::lower::AbstractConverter &converter,
+                Fortran::semantics::SemanticsContext &semaCtx,
+                Fortran::lower::pft::Evaluation &eval, bool genNested,
+                mlir::Location loc,
+                const Fortran::parser::OmpClauseList &clauseList) {
   Fortran::lower::StatementContext stmtCtx;
-  mlir::omp::TeamsClauseOps clauseOps;
-
-  ClauseProcessor cp(converter, semaCtx, clauseList);
-  cp.processIf(llvm::omp::Directive::OMPD_teams, clauseOps);
-  cp.processAllocate(clauseOps);
-  cp.processDefault();
-  cp.processNumTeams(stmtCtx, clauseOps);
-  cp.processThreadLimit(stmtCtx, clauseOps);
-  // TODO Support delayed privatization.
-
-  cp.processTODO<clause::Reduction>(currentLocation,
-                                    llvm::omp::Directive::OMPD_teams);
+  mlir::omp::TargetDataClauseOps clauseOps;
+  llvm::SmallVector<mlir::Type> useDeviceTypes;
+  llvm::SmallVector<mlir::Location> useDeviceLocs;
+  llvm::SmallVector<const Fortran::semantics::Symbol *> useDeviceSyms;
+  genTargetDataClauses(converter, semaCtx, stmtCtx, clauseList, loc, clauseOps,
+                       useDeviceTypes, useDeviceLocs, useDeviceSyms);
 
-  return genOpWithBody<mlir::omp::TeamsOp>(
-      OpWithBodyGenInfo(converter, semaCtx, currentLocation, eval)
-          .setGenNested(genNested)
-          .setOuterCombined(outerCombined)
-          .setClauses(&clauseList),
-      clauseOps);
+  auto targetDataOp =
+      converter.getFirOpBuilder().create<mlir::omp::TargetDataOp>(loc,
+                                                                  clauseOps);
+  genBodyOfTargetDataOp(converter, semaCtx, eval, genNested, targetDataOp,
+                        useDeviceTypes, useDeviceLocs, useDeviceSyms, loc);
+  return targetDataOp;
 }
 
-/// Extract the list of function and variable symbols affected by the given
-/// 'declare target' directive and return the intended device type for them.
-static void getDeclareTargetInfo(
+template <typename OpTy>
+static OpTy genTargetEnterExitUpdateDataOp(
     Fortran::lower::AbstractConverter &converter,
-    Fortran::semantics::SemanticsContext &semaCtx,
-    Fortran::lower::pft::Evaluation &eval,
-    const Fortran::parser::OpenMPDeclareTargetConstruct &declareTargetConstruct,
-    mlir::omp::DeclareTargetClauseOps &clauseOps,
-    llvm::SmallVectorImpl<DeclareTargetCapturePair> &symbolAndClause) {
-  const auto &spec = std::get<Fortran::parser::OmpDeclareTargetSpecifier>(
-      declareTargetConstruct.t);
-  if (const auto *objectList{
-          Fortran::parser::Unwrap<Fortran::parser::OmpObjectList>(spec.u)}) {
-    ObjectList objects{makeObjects(*objectList, semaCtx)};
-    // Case: declare target(func, var1, var2)
-    gatherFuncAndVarSyms(objects, mlir::omp::DeclareTargetCaptureClause::to,
-                         symbolAndClause);
-  } else if (const auto *clauseList{
-                 Fortran::parser::Unwrap<Fortran::parser::OmpClauseList>(
-                     spec.u)}) {
-    if (clauseList->v.empty()) {
-      // Case: declare target, implicit capture of function
-      symbolAndClause.emplace_back(
-          mlir::omp::DeclareTargetCaptureClause::to,
-          eval.getOwningProcedure()->getSubprogramSymbol());
-    }
+    Fortran::semantics::SemanticsContext &semaCtx, mlir::Location loc,
+    const Fortran::parser::OmpClauseList &clauseList) {
+  fir::FirOpBuilder &firOpBuilder = converter.getFirOpBuilder();
+  Fortran::lower::StatementContext stmtCtx;
 
-    ClauseProcessor cp(converter, semaCtx, *clauseList);
-    cp.processTo(symbolAndClause);
-    cp.processEnter(symbolAndClause);
-    cp.processLink(symbolAndClause);
-    cp.processDeviceType(clauseOps);
-    cp.processTODO<clause::Indirect>(converter.getCurrentLocation(),
-                                     llvm::omp::Directive::OMPD_declare_target);
+  // GCC 9.3.0 emits a (probably) bogus warning about an unused variable.
+  [[maybe_unused]] llvm::omp::Directive directive;
+  if constexpr (std::is_same_v<OpTy, mlir::omp::TargetEnterDataOp>) {
+    directive = llvm::omp::Directive::OMPD_target_enter_data;
+  } else if constexpr (std::is_same_v<OpTy, mlir::omp::TargetExitDataOp>) {
+    directive = llvm::omp::Directive::OMPD_target_exit_data;
+  } else if constexpr (std::is_same_v<OpTy, mlir::omp::TargetUpdateOp>) {
+    directive = llvm::omp::Directive::OMPD_target_update;
+  } else {
+    llvm_unreachable("Unexpected TARGET DATA construct");
   }
-}
-
-static void collectDeferredDeclareTargets(
-    Fortran::lower::AbstractConverter &converter,
-    Fortran::semantics::SemanticsContext &semaCtx,
-    Fortran::lower::pft::Evaluation &eval,
-    const Fortran::parser::OpenMPDeclareTargetConstruct &declareTargetConstruct,
-    llvm::SmallVectorImpl<Fortran::lower::OMPDeferredDeclareTargetInfo>
-        &deferredDeclareTarget) {
-  mlir::omp::DeclareTargetClauseOps clauseOps;
-  llvm::SmallVector<DeclareTargetCapturePair> symbolAndClause;
-  getDeclareTargetInfo(converter, semaCtx, eval, declareTargetConstruct,
-                       clauseOps, symbolAndClause);
-  // Return the device type only if at least one of the targets for the
-  // directive is a function or subroutine
-  mlir::ModuleOp mod = converter.getFirOpBuilder().getModule();
 
-  for (const DeclareTargetCapturePair &symClause : symbolAndClause) {
-    mlir::Operation *op = mod.lookupSymbol(converter.mangleName(
-        std::get<const Fortran::semantics::Symbol &>(symClause)));
+  mlir::omp::TargetEnterExitUpdateDataClauseOps clauseOps;
+  genTargetEnterExitUpdateDataClauses(converter, semaCtx, stmtCtx, clauseList,
+                                      loc, directive, clauseOps);
 
-    if (!op) {
-      deferredDeclareTarget.push_back({std::get<0>(symClause),
-                                       clauseOps.deviceType,
-                                       std::get<1>(symClause)});
-    }
-  }
+  return firOpBuilder.create<OpTy>(loc, clauseOps);
 }
 
-static std::optional<mlir::omp::DeclareTargetDeviceType>
-getDeclareTargetFunctionDevice(
-    Fortran::lower::AbstractConverter &converter,
-    Fortran::semantics::SemanticsContext &semaCtx,
-    Fortran::lower::pft::Evaluation &eval,
-    const Fortran::parser::OpenMPDeclareTargetConstruct
-        &declareTargetConstruct) {
-  mlir::omp::DeclareTargetClauseOps clauseOps;
-  llvm::SmallVector<DeclareTargetCapturePair> symbolAndClause;
-  getDeclareTargetInfo(converter, semaCtx, eval, declareTargetConstruct,
-                       clauseOps, symbolAndClause);
-
-  // Return the device type only if at least one of the targets for the
-  // directive is a function or subroutine
-  mlir::ModuleOp mod = converter.getFirOpBuilder().getModule();
-  for (const DeclareTargetCapturePair &symClause : symbolAndClause) {
-    mlir::Operation *op = mod.lookupSymbol(converter.mangleName(
-        std::get<const Fortran::semantics::Symbol &>(symClause)));
-
-    if (mlir::isa_and_nonnull<mlir::func::FuncOp>(op))
-      return clauseOps.deviceType;
-  }
+static mlir::omp::TaskOp
+genTaskOp(Fortran::lower::AbstractConverter &converter,
+          Fortran::semantics::SemanticsContext &semaCtx,
+          Fortran::lower::pft::Evaluation &eval, bool genNested,
+          mlir::Location loc,
+          const Fortran::parser::OmpClauseList &clauseList) {
+  Fortran::lower::StatementContext stmtCtx;
+  mlir::omp::TaskClauseOps clauseOps;
+  genTaskClauses(converter, semaCtx, stmtCtx, clauseList, loc, clauseOps);
 
-  return std::nullopt;
+  return genOpWithBody<mlir::omp::TaskOp>(
+      OpWithBodyGenInfo(converter, semaCtx, loc, eval)
+          .setGenNested(genNested)
+          .setClauses(&clauseList),
+      clauseOps);
 }
 
-//===----------------------------------------------------------------------===//
-// genOMP() Code generation helper functions
-//===----------------------------------------------------------------------===//
-
-static void
-genOmpSimpleStandalone(Fortran::lower::AbstractConverter &converter,
-                       Fortran::semantics::SemanticsContext &semaCtx,
-                       Fortran::lower::pft::Evaluation &eval, bool genNested,
-                       const Fortran::parser::OpenMPSimpleStandaloneConstruct
-                           &simpleStandaloneConstruct) {
-  const auto &directive =
-      std::get<Fortran::parser::OmpSimpleStandaloneDirective>(
-          simpleStandaloneConstruct.t);
-  fir::FirOpBuilder &firOpBuilder = converter.getFirOpBuilder();
-  const auto &opClauseList =
-      std::get<Fortran::parser::OmpClauseList>(simpleStandaloneConstruct.t);
-  mlir::Location currentLocation = converter.genLocation(directive.source);
-
-  switch (directive.v) {
-  default:
-    break;
-  case llvm::omp::Directive::OMPD_barrier:
-    firOpBuilder.create<mlir::omp::BarrierOp>(currentLocation);
-    break;
-  case llvm::omp::Directive::OMPD_taskwait: {
-    mlir::omp::TaskwaitClauseOps clauseOps;
-    ClauseProcessor cp(converter, semaCtx, opClauseList);
-    cp.processTODO<clause::Depend, clause::Nowait>(
-        currentLocation, llvm::omp::Directive::OMPD_taskwait);
-    firOpBuilder.create<mlir::omp::TaskwaitOp>(currentLocation, clauseOps);
-    break;
-  }
-  case llvm::omp::Directive::OMPD_taskyield:
-    firOpBuilder.create<mlir::omp::TaskyieldOp>(currentLocation);
-    break;
-  case llvm::omp::Directive::OMPD_target_data:
-    genTargetDataOp(converter, semaCtx, eval, genNested, currentLocation,
-                    opClauseList);
-    break;
-  case llvm::omp::Directive::OMPD_target_enter_data:
-    genTargetEnterExitDataUpdateOp<mlir::omp::TargetEnterDataOp>(
-        converter, semaCtx, currentLocation, opClauseList);
-    break;
-  case llvm::omp::Directive::OMPD_target_exit_data:
-    genTargetEnterExitDataUpdateOp<mlir::omp::TargetExitDataOp>(
-        converter, semaCtx, currentLocation, opClauseList);
-    break;
-  case llvm::omp::Directive::OMPD_target_update:
-    genTargetEnterExitDataUpdateOp<mlir::omp::TargetUpdateOp>(
-        converter, semaCtx, currentLocation, opClauseList);
-    break;
-  case llvm::omp::Directive::OMPD_ordered:
-    TODO(currentLocation, "OMPD_ordered");
-  }
-}
+static mlir::omp::TaskgroupOp
+genTaskgroupOp(Fortran::lower::AbstractConverter &converter,
+               Fortran::semantics::SemanticsContext &semaCtx,
+               Fortran::lower::pft::Evaluation &eval, bool genNested,
+               mlir::Location loc,
+               const Fortran::parser::OmpClauseList &clauseList) {
+  mlir::omp::TaskgroupClauseOps clauseOps;
+  genTaskgroupClauses(converter, semaCtx, clauseList, loc, clauseOps);
 
-static void
-genOmpFlush(Fortran::lower::AbstractConverter &converter,
-            Fortran::semantics::SemanticsContext &semaCtx,
-            Fortran::lower::pft::Evaluation &eval,
-            const Fortran::parser::OpenMPFlushConstruct &flushConstruct) {
-  llvm::SmallVector<mlir::Value, 4> operandRange;
-  if (const auto &ompObjectList =
-          std::get<std::optional<Fortran::parser::OmpObjectList>>(
-              flushConstruct.t))
-    genObjectList2(*ompObjectList, converter, operandRange);
-  const auto &memOrderClause =
-      std::get<std::optional<std::list<Fortran::parser::OmpMemoryOrderClause>>>(
-          flushConstruct.t);
-  if (memOrderClause && memOrderClause->size() > 0)
-    TODO(converter.getCurrentLocation(), "Handle OmpMemoryOrderClause");
-  converter.getFirOpBuilder().create<mlir::omp::FlushOp>(
-      converter.getCurrentLocation(), operandRange);
+  return genOpWithBody<mlir::omp::TaskgroupOp>(
+      OpWithBodyGenInfo(converter, semaCtx, loc, eval)
+          .setGenNested(genNested)
+          .setClauses(&clauseList),
+      clauseOps);
 }
 
-static llvm::SmallVector<const Fortran::semantics::Symbol *>
-genLoopVars(mlir::Operation *op, Fortran::lower::AbstractConverter &converter,
-            mlir::Location &loc,
-            llvm::ArrayRef<const Fortran::semantics::Symbol *> args) {
-  fir::FirOpBuilder &firOpBuilder = converter.getFirOpBuilder();
-  auto &region = op->getRegion(0);
-
-  std::size_t loopVarTypeSize = 0;
-  for (const Fortran::semantics::Symbol *arg : args)
-    loopVarTypeSize = std::max(loopVarTypeSize, arg->GetUltimate().size());
-  mlir::Type loopVarType = getLoopVarType(converter, loopVarTypeSize);
-  llvm::SmallVector<mlir::Type> tiv(args.size(), loopVarType);
-  llvm::SmallVector<mlir::Location> locs(args.size(), loc);
-  firOpBuilder.createBlock(&region, {}, tiv, locs);
-  // The argument is not currently in memory, so make a temporary for the
-  // argument, and store it there, then bind that location to the argument.
-  mlir::Operation *storeOp = nullptr;
-  for (auto [argIndex, argSymbol] : llvm::enumerate(args)) {
-    mlir::Value indexVal = fir::getBase(region.front().getArgument(argIndex));
-    storeOp =
-        createAndSetPrivatizedLoopVar(converter, loc, indexVal, argSymbol);
-  }
-  firOpBuilder.setInsertionPointAfter(storeOp);
-
-  return llvm::SmallVector<const Fortran::semantics::Symbol *>(args);
+static mlir::omp::TaskloopOp
+genTaskloopOp(Fortran::lower::AbstractConverter &converter,
+              Fortran::semantics::SemanticsContext &semaCtx,
+              Fortran::lower::pft::Evaluation &eval, mlir::Location loc,
+              const Fortran::parser::OmpClauseList &clauseList) {
+  TODO(loc, "Taskloop construct");
 }
 
-static llvm::SmallVector<const Fortran::semantics::Symbol *>
-genLoopAndReductionVars(
-    mlir::Operation *op, Fortran::lower::AbstractConverter &converter,
-    mlir::Location &loc,
-    llvm::ArrayRef<const Fortran::semantics::Symbol *> loopArgs,
-    llvm::ArrayRef<const Fortran::semantics::Symbol *> reductionArgs,
-    llvm::ArrayRef<mlir::Type> reductionTypes) {
-  fir::FirOpBuilder &firOpBuilder = converter.getFirOpBuilder();
-
-  llvm::SmallVector<mlir::Type> blockArgTypes;
-  llvm::SmallVector<mlir::Location> blockArgLocs;
-  blockArgTypes.reserve(loopArgs.size() + reductionArgs.size());
-  blockArgLocs.reserve(blockArgTypes.size());
-  mlir::Block *entryBlock;
-
-  if (loopArgs.size()) {
-    std::size_t loopVarTypeSize = 0;
-    for (const Fortran::semantics::Symbol *arg : loopArgs)
-      loopVarTypeSize = std::max(loopVarTypeSize, arg->GetUltimate().size());
-    mlir::Type loopVarType = getLoopVarType(converter, loopVarTypeSize);
-    std::fill_n(std::back_inserter(blockArgTypes), loopArgs.size(),
-                loopVarType);
-    std::fill_n(std::back_inserter(blockArgLocs), loopArgs.size(), loc);
-  }
-  if (reductionArgs.size()) {
-    llvm::copy(reductionTypes, std::back_inserter(blockArgTypes));
-    std::fill_n(std::back_inserter(blockArgLocs), reductionArgs.size(), loc);
-  }
-  entryBlock = firOpBuilder.createBlock(&op->getRegion(0), {}, blockArgTypes,
-                                        blockArgLocs);
-  // The argument is not currently in memory, so make a temporary for the
-  // argument, and store it there, then bind that location to the argument.
-  if (loopArgs.size()) {
-    mlir::Operation *storeOp = nullptr;
-    for (auto [argIndex, argSymbol] : llvm::enumerate(loopArgs)) {
-      mlir::Value indexVal =
-          fir::getBase(op->getRegion(0).front().getArgument(argIndex));
-      storeOp =
-          createAndSetPrivatizedLoopVar(converter, loc, indexVal, argSymbol);
-    }
-    firOpBuilder.setInsertionPointAfter(storeOp);
-  }
-  // Bind the reduction arguments to their block arguments
-  for (auto [arg, prv] : llvm::zip_equal(
-           reductionArgs,
-           llvm::drop_begin(entryBlock->getArguments(), loopArgs.size()))) {
-    converter.bindSymbol(*arg, prv);
-  }
-
-  return llvm::SmallVector<const Fortran::semantics::Symbol *>(loopArgs);
+static mlir::omp::TaskwaitOp
+genTaskwaitOp(Fortran::lower::AbstractConverter &converter,
+              Fortran::semantics::SemanticsContext &semaCtx,
+              Fortran::lower::pft::Evaluation &eval, mlir::Location loc,
+              const Fortran::parser::OmpClauseList &clauseList) {
+  mlir::omp::TaskwaitClauseOps clauseOps;
+  genTaskwaitClauses(converter, semaCtx, clauseList, loc, clauseOps);
+  return converter.getFirOpBuilder().create<mlir::omp::TaskwaitOp>(loc,
+                                                                   clauseOps);
 }
 
-static void
-createSimdLoop(Fortran::lower::AbstractConverter &converter,
+static mlir::omp::TaskyieldOp
+genTaskyieldOp(Fortran::lower::AbstractConverter &converter,
                Fortran::semantics::SemanticsContext &semaCtx,
-               Fortran::lower::pft::Evaluation &eval,
-               llvm::omp::Directive ompDirective,
-               const Fortran::parser::OmpClauseList &loopOpClauseList,
-               mlir::Location loc) {
-  fir::FirOpBuilder &firOpBuilder = converter.getFirOpBuilder();
-  DataSharingProcessor dsp(converter, semaCtx, loopOpClauseList, eval);
-  dsp.processStep1();
+               Fortran::lower::pft::Evaluation &eval, mlir::Location loc) {
+  return converter.getFirOpBuilder().create<mlir::omp::TaskyieldOp>(loc);
+}
 
+static mlir::omp::TeamsOp
+genTeamsOp(Fortran::lower::AbstractConverter &converter,
+           Fortran::semantics::SemanticsContext &semaCtx,
+           Fortran::lower::pft::Evaluation &eval, bool genNested,
+           mlir::Location loc, const Fortran::parser::OmpClauseList &clauseList,
+           bool outerCombined = false) {
   Fortran::lower::StatementContext stmtCtx;
-  mlir::omp::SimdLoopClauseOps clauseOps;
-  llvm::SmallVector<const Fortran::semantics::Symbol *> iv;
-
-  ClauseProcessor cp(converter, semaCtx, loopOpClauseList);
-  cp.processCollapse(loc, eval, clauseOps, iv);
-  cp.processReduction(loc, clauseOps);
-  cp.processIf(llvm::omp::Directive::OMPD_simd, clauseOps);
-  cp.processSimdlen(clauseOps);
-  cp.processSafelen(clauseOps);
-  clauseOps.loopInclusiveAttr = firOpBuilder.getUnitAttr();
-  // TODO Support delayed privatization.
-
-  cp.processTODO<clause::Aligned, clause::Allocate, clause::Linear,
-                 clause::Nontemporal, clause::Order>(loc, ompDirective);
-
-  auto *nestedEval = getCollapsedLoopEval(
-      eval, Fortran::lower::getCollapseValue(loopOpClauseList));
-
-  auto ivCallback = [&](mlir::Operation *op) {
-    return genLoopVars(op, converter, loc, iv);
-  };
+  mlir::omp::TeamsClauseOps clauseOps;
+  genTeamsClauses(converter, semaCtx, stmtCtx, clauseList, loc, clauseOps);
 
-  genOpWithBody<mlir::omp::SimdLoopOp>(
-      OpWithBodyGenInfo(converter, semaCtx, loc, *nestedEval)
-          .setClauses(&loopOpClauseList)
-          .setDataSharingProcessor(&dsp)
-          .setGenRegionEntryCb(ivCallback),
+  return genOpWithBody<mlir::omp::TeamsOp>(
+      OpWithBodyGenInfo(converter, semaCtx, loc, eval)
+          .setGenNested(genNested)
+          .setOuterCombined(outerCombined)
+          .setClauses(&clauseList),
       clauseOps);
 }
 
-static void createWsloop(Fortran::lower::AbstractConverter &converter,
-                         Fortran::semantics::SemanticsContext &semaCtx,
-                         Fortran::lower::pft::Evaluation &eval,
-                         llvm::omp::Directive ompDirective,
-                         const Fortran::parser::OmpClauseList &beginClauseList,
-                         const Fortran::parser::OmpClauseList *endClauseList,
-                         mlir::Location loc) {
-  fir::FirOpBuilder &firOpBuilder = converter.getFirOpBuilder();
+static mlir::omp::WsloopOp
+genWsloopOp(Fortran::lower::AbstractConverter &converter,
+            Fortran::semantics::SemanticsContext &semaCtx,
+            Fortran::lower::pft::Evaluation &eval, mlir::Location loc,
+            const Fortran::parser::OmpClauseList &beginClauseList,
+            const Fortran::parser::OmpClauseList *endClauseList) {
   DataSharingProcessor dsp(converter, semaCtx, beginClauseList, eval);
   dsp.processStep1();
 
@@ -1683,30 +1725,9 @@ static void createWsloop(Fortran::lower::AbstractConverter &converter,
   llvm::SmallVector<const Fortran::semantics::Symbol *> iv;
   llvm::SmallVector<mlir::Type> reductionTypes;
   llvm::SmallVector<const Fortran::semantics::Symbol *> reductionSyms;
-
-  ClauseProcessor cp(converter, semaCtx, beginClauseList);
-  cp.processCollapse(loc, eval, clauseOps, iv);
-  cp.processSchedule(stmtCtx, clauseOps);
-  cp.processReduction(loc, clauseOps, &reductionTypes, &reductionSyms);
-  cp.processOrdered(clauseOps);
-  clauseOps.loopInclusiveAttr = firOpBuilder.getUnitAttr();
-  // TODO Support delayed privatization.
-
-  if (ReductionProcessor::doReductionByRef(clauseOps.reductionVars))
-    clauseOps.reductionByRefAttr = firOpBuilder.getUnitAttr();
-
-  cp.processTODO<clause::Allocate, clause::Linear, clause::Order>(loc,
-                                                                  ompDirective);
-
-  // In FORTRAN `nowait` clause occur at the end of `omp do` directive.
-  // i.e
-  // !$omp do
-  // <...>
-  // !$omp end do nowait
-  if (endClauseList) {
-    ClauseProcessor ecp(converter, semaCtx, *endClauseList);
-    ecp.processNowait(clauseOps);
-  }
+  genWsloopClauses(converter, semaCtx, stmtCtx, eval, beginClauseList,
+                   endClauseList, loc, clauseOps, iv, reductionTypes,
+                   reductionSyms);
 
   auto *nestedEval = getCollapsedLoopEval(
       eval, Fortran::lower::getCollapseValue(beginClauseList));
@@ -1716,7 +1737,7 @@ static void createWsloop(Fortran::lower::AbstractConverter &converter,
                                    reductionTypes);
   };
 
-  genOpWithBody<mlir::omp::WsloopOp>(
+  return genOpWithBody<mlir::omp::WsloopOp>(
       OpWithBodyGenInfo(converter, semaCtx, loc, *nestedEval)
           .setClauses(&beginClauseList)
           .setDataSharingProcessor(&dsp)
@@ -1725,7 +1746,11 @@ static void createWsloop(Fortran::lower::AbstractConverter &converter,
       clauseOps);
 }
 
-static void createSimdWsloop(
+//===----------------------------------------------------------------------===//
+// Code generation functions for composite constructs
+//===----------------------------------------------------------------------===//
+
+static void genCompositeDoSimd(
     Fortran::lower::AbstractConverter &converter,
     Fortran::semantics::SemanticsContext &semaCtx,
     Fortran::lower::pft::Evaluation &eval, llvm::omp::Directive ompDirective,
@@ -1733,7 +1758,7 @@ static void createSimdWsloop(
     const Fortran::parser::OmpClauseList *endClauseList, mlir::Location loc) {
   ClauseProcessor cp(converter, semaCtx, beginClauseList);
   cp.processTODO<clause::Aligned, clause::Allocate, clause::Linear,
-                 clause::Safelen, clause::Simdlen, clause::Order>(loc,
+                 clause::Order, clause::Safelen, clause::Simdlen>(loc,
                                                                   ompDirective);
   // TODO: Add support for vectorization - add vectorization hints inside loop
   // body.
@@ -1743,34 +1768,7 @@ static void createSimdWsloop(
   // When support for vectorization is enabled, then we need to add handling of
   // if clause. Currently if clause can be skipped because we always assume
   // SIMD length = 1.
-  createWsloop(converter, semaCtx, eval, ompDirective, beginClauseList,
-               endClauseList, loc);
-}
-
-static void
-markDeclareTarget(mlir::Operation *op,
-                  Fortran::lower::AbstractConverter &converter,
-                  mlir::omp::DeclareTargetCaptureClause captureClause,
-                  mlir::omp::DeclareTargetDeviceType deviceType) {
-  // TODO: Add support for program local variables with declare target applied
-  auto declareTargetOp = llvm::dyn_cast<mlir::omp::DeclareTargetInterface>(op);
-  if (!declareTargetOp)
-    fir::emitFatalError(
-        converter.getCurrentLocation(),
-        "Attempt to apply declare target on unsupported operation");
-
-  // The function or global already has a declare target applied to it, very
-  // likely through implicit capture (usage in another declare target
-  // function/subroutine). It should be marked as any if it has been assigned
-  // both host and nohost, else we skip, as there is no change
-  if (declareTargetOp.isDeclareTarget()) {
-    if (declareTargetOp.getDeclareTargetDeviceType() != deviceType)
-      declareTargetOp.setDeclareTarget(mlir::omp::DeclareTargetDeviceType::any,
-                                       captureClause);
-    return;
-  }
-
-  declareTargetOp.setDeclareTarget(deviceType, captureClause);
+  genWsloopOp(converter, semaCtx, eval, loc, beginClauseList, endClauseList);
 }
 
 //===----------------------------------------------------------------------===//
@@ -1866,6 +1864,102 @@ genOMP(Fortran::lower::AbstractConverter &converter,
 }
 
 //===----------------------------------------------------------------------===//
+// OpenMPStandaloneConstruct visitors
+//===----------------------------------------------------------------------===//
+
+static void genOMP(Fortran::lower::AbstractConverter &converter,
+                   Fortran::lower::SymMap &symTable,
+                   Fortran::semantics::SemanticsContext &semaCtx,
+                   Fortran::lower::pft::Evaluation &eval,
+                   const Fortran::parser::OpenMPSimpleStandaloneConstruct
+                       &simpleStandaloneConstruct) {
+  const auto &directive =
+      std::get<Fortran::parser::OmpSimpleStandaloneDirective>(
+          simpleStandaloneConstruct.t);
+  const auto &clauseList =
+      std::get<Fortran::parser::OmpClauseList>(simpleStandaloneConstruct.t);
+  mlir::Location currentLocation = converter.genLocation(directive.source);
+
+  switch (directive.v) {
+  default:
+    break;
+  case llvm::omp::Directive::OMPD_barrier:
+    genBarrierOp(converter, semaCtx, eval, currentLocation);
+    break;
+  case llvm::omp::Directive::OMPD_taskwait:
+    genTaskwaitOp(converter, semaCtx, eval, currentLocation, clauseList);
+    break;
+  case llvm::omp::Directive::OMPD_taskyield:
+    genTaskyieldOp(converter, semaCtx, eval, currentLocation);
+    break;
+  case llvm::omp::Directive::OMPD_target_data:
+    genTargetDataOp(converter, semaCtx, eval, /*genNested=*/true,
+                    currentLocation, clauseList);
+    break;
+  case llvm::omp::Directive::OMPD_target_enter_data:
+    genTargetEnterExitUpdateDataOp<mlir::omp::TargetEnterDataOp>(
+        converter, semaCtx, currentLocation, clauseList);
+    break;
+  case llvm::omp::Directive::OMPD_target_exit_data:
+    genTargetEnterExitUpdateDataOp<mlir::omp::TargetExitDataOp>(
+        converter, semaCtx, currentLocation, clauseList);
+    break;
+  case llvm::omp::Directive::OMPD_target_update:
+    genTargetEnterExitUpdateDataOp<mlir::omp::TargetUpdateOp>(
+        converter, semaCtx, currentLocation, clauseList);
+    break;
+  case llvm::omp::Directive::OMPD_ordered:
+    genOrderedOp(converter, semaCtx, eval, currentLocation, clauseList);
+    break;
+  }
+}
+
+static void
+genOMP(Fortran::lower::AbstractConverter &converter,
+       Fortran::lower::SymMap &symTable,
+       Fortran::semantics::SemanticsContext &semaCtx,
+       Fortran::lower::pft::Evaluation &eval,
+       const Fortran::parser::OpenMPFlushConstruct &flushConstruct) {
+  const auto &verbatim = std::get<Fortran::parser::Verbatim>(flushConstruct.t);
+  const auto &objectList =
+      std::get<std::optional<Fortran::parser::OmpObjectList>>(flushConstruct.t);
+  const auto &clauseList =
+      std::get<std::optional<std::list<Fortran::parser::OmpMemoryOrderClause>>>(
+          flushConstruct.t);
+  mlir::Location currentLocation = converter.genLocation(verbatim.source);
+  genFlushOp(converter, semaCtx, eval, currentLocation, objectList, clauseList);
+}
+
+static void
+genOMP(Fortran::lower::AbstractConverter &converter,
+       Fortran::lower::SymMap &symTable,
+       Fortran::semantics::SemanticsContext &semaCtx,
+       Fortran::lower::pft::Evaluation &eval,
+       const Fortran::parser::OpenMPCancelConstruct &cancelConstruct) {
+  TODO(converter.getCurrentLocation(), "OpenMPCancelConstruct");
+}
+
+static void genOMP(Fortran::lower::AbstractConverter &converter,
+                   Fortran::lower::SymMap &symTable,
+                   Fortran::semantics::SemanticsContext &semaCtx,
+                   Fortran::lower::pft::Evaluation &eval,
+                   const Fortran::parser::OpenMPCancellationPointConstruct
+                       &cancellationPointConstruct) {
+  TODO(converter.getCurrentLocation(), "OpenMPCancelConstruct");
+}
+
+static void
+genOMP(Fortran::lower::AbstractConverter &converter,
+       Fortran::lower::SymMap &symTable,
+       Fortran::semantics::SemanticsContext &semaCtx,
+       Fortran::lower::pft::Evaluation &eval,
+       const Fortran::parser::OpenMPStandaloneConstruct &standaloneConstruct) {
+  std::visit(
+      [&](auto &&s) { return genOMP(converter, symTable, semaCtx, eval, s); },
+      standaloneConstruct.u);
+}
+
+//===----------------------------------------------------------------------===//
 // OpenMPConstruct visitors
 //===----------------------------------------------------------------------===//
 
@@ -1996,7 +2090,7 @@ genOMP(Fortran::lower::AbstractConverter &converter,
     break;
   case llvm::omp::Directive::OMPD_target:
     genTargetOp(converter, semaCtx, eval, /*genNested=*/true, currentLocation,
-                beginClauseList, directive.v);
+                beginClauseList);
     break;
   case llvm::omp::Directive::OMPD_target_data:
     genTargetDataOp(converter, semaCtx, eval, /*genNested=*/true,
@@ -2012,8 +2106,7 @@ genOMP(Fortran::lower::AbstractConverter &converter,
     break;
   case llvm::omp::Directive::OMPD_teams:
     genTeamsOp(converter, semaCtx, eval, /*genNested=*/true, currentLocation,
-               beginClauseList,
-               /*outerCombined=*/false);
+               beginClauseList);
     break;
   case llvm::omp::Directive::OMPD_workshare:
     // FIXME: Workshare is not a commonly used OpenMP construct, an
@@ -2035,8 +2128,7 @@ genOMP(Fortran::lower::AbstractConverter &converter,
   if ((llvm::omp::allTargetSet & llvm::omp::blockConstructSet)
           .test(directive.v)) {
     genTargetOp(converter, semaCtx, eval, /*genNested=*/false, currentLocation,
-                beginClauseList, directive.v,
-                /*outerCombined=*/true);
+                beginClauseList, /*outerCombined=*/true);
     combinedDirective = true;
   }
   if ((llvm::omp::allTeamsSet & llvm::omp::blockConstructSet)
@@ -2073,44 +2165,13 @@ genOMP(Fortran::lower::AbstractConverter &converter,
        Fortran::semantics::SemanticsContext &semaCtx,
        Fortran::lower::pft::Evaluation &eval,
        const Fortran::parser::OpenMPCriticalConstruct &criticalConstruct) {
-  fir::FirOpBuilder &firOpBuilder = converter.getFirOpBuilder();
-  mlir::Location currentLocation = converter.getCurrentLocation();
-  std::string name;
-  const Fortran::parser::OmpCriticalDirective &cd =
+  const auto &cd =
       std::get<Fortran::parser::OmpCriticalDirective>(criticalConstruct.t);
-  if (std::get<std::optional<Fortran::parser::Name>>(cd.t).has_value()) {
-    name =
-        std::get<std::optional<Fortran::parser::Name>>(cd.t).value().ToString();
-  }
-
-  mlir::omp::CriticalOp criticalOp = [&]() {
-    if (name.empty()) {
-      return firOpBuilder.create<mlir::omp::CriticalOp>(
-          currentLocation, mlir::FlatSymbolRefAttr());
-    }
-
-    mlir::ModuleOp module = firOpBuilder.getModule();
-    mlir::OpBuilder modBuilder(module.getBodyRegion());
-    auto global = module.lookupSymbol<mlir::omp::CriticalDeclareOp>(name);
-    if (!global) {
-      mlir::omp::CriticalClauseOps clauseOps;
-      const auto &clauseList = std::get<Fortran::parser::OmpClauseList>(cd.t);
-
-      ClauseProcessor cp(converter, semaCtx, clauseList);
-      cp.processHint(clauseOps);
-      clauseOps.nameAttr =
-          mlir::StringAttr::get(firOpBuilder.getContext(), name);
-
-      global = modBuilder.create<mlir::omp::CriticalDeclareOp>(currentLocation,
-                                                               clauseOps);
-    }
-
-    return firOpBuilder.create<mlir::omp::CriticalOp>(
-        currentLocation, mlir::FlatSymbolRefAttr::get(firOpBuilder.getContext(),
-                                                      global.getSymName()));
-  }();
-  auto genInfo = OpWithBodyGenInfo(converter, semaCtx, currentLocation, eval);
-  createBodyOfOp<mlir::omp::CriticalOp>(criticalOp, genInfo);
+  const auto &clauseList = std::get<Fortran::parser::OmpClauseList>(cd.t);
+  const auto &name = std::get<std::optional<Fortran::parser::Name>>(cd.t);
+  mlir::Location currentLocation = converter.getCurrentLocation();
+  genCriticalOp(converter, semaCtx, eval, /*genNested=*/true, currentLocation,
+                clauseList, name);
 }
 
 static void
@@ -2129,7 +2190,7 @@ static void genOMP(Fortran::lower::AbstractConverter &converter,
                    const Fortran::parser::OpenMPLoopConstruct &loopConstruct) {
   const auto &beginLoopDirective =
       std::get<Fortran::parser::OmpBeginLoopDirective>(loopConstruct.t);
-  const auto &loopOpClauseList =
+  const auto &beginClauseList =
       std::get<Fortran::parser::OmpClauseList>(beginLoopDirective.t);
   mlir::Location currentLocation =
       converter.genLocation(beginLoopDirective.source);
@@ -2150,33 +2211,31 @@ static void genOMP(Fortran::lower::AbstractConverter &converter,
   bool validDirective = false;
   if (llvm::omp::topTaskloopSet.test(ompDirective)) {
     validDirective = true;
-    TODO(currentLocation, "Taskloop construct");
+    genTaskloopOp(converter, semaCtx, eval, currentLocation, beginClauseList);
   } else {
     // Create omp.{target, teams, distribute, parallel} nested operations
     if ((llvm::omp::allTargetSet & llvm::omp::loopConstructSet)
             .test(ompDirective)) {
       validDirective = true;
       genTargetOp(converter, semaCtx, eval, /*genNested=*/false,
-                  currentLocation, loopOpClauseList, ompDirective,
-                  /*outerCombined=*/true);
+                  currentLocation, beginClauseList, /*outerCombined=*/true);
     }
     if ((llvm::omp::allTeamsSet & llvm::omp::loopConstructSet)
             .test(ompDirective)) {
       validDirective = true;
       genTeamsOp(converter, semaCtx, eval, /*genNested=*/false, currentLocation,
-                 loopOpClauseList,
-                 /*outerCombined=*/true);
+                 beginClauseList, /*outerCombined=*/true);
     }
     if (llvm::omp::allDistributeSet.test(ompDirective)) {
       validDirective = true;
-      TODO(currentLocation, "Distribute construct");
+      genDistributeOp(converter, semaCtx, eval, /*genNested=*/false,
+                      currentLocation, beginClauseList);
     }
     if ((llvm::omp::allParallelSet & llvm::omp::loopConstructSet)
             .test(ompDirective)) {
       validDirective = true;
       genParallelOp(converter, symTable, semaCtx, eval, /*genNested=*/false,
-                    currentLocation, loopOpClauseList,
-                    /*outerCombined=*/true);
+                    currentLocation, beginClauseList, /*outerCombined=*/true);
     }
   }
   if ((llvm::omp::allDoSet | llvm::omp::allSimdSet).test(ompDirective))
@@ -2190,17 +2249,14 @@ static void genOMP(Fortran::lower::AbstractConverter &converter,
 
   if (llvm::omp::allDoSimdSet.test(ompDirective)) {
     // 2.9.3.2 Workshare SIMD construct
-    createSimdWsloop(converter, semaCtx, eval, ompDirective, loopOpClauseList,
-                     endClauseList, currentLocation);
-
+    genCompositeDoSimd(converter, semaCtx, eval, ompDirective, beginClauseList,
+                       endClauseList, currentLocation);
   } else if (llvm::omp::allSimdSet.test(ompDirective)) {
     // 2.9.3.1 SIMD construct
-    createSimdLoop(converter, semaCtx, eval, ompDirective, loopOpClauseList,
-                   currentLocation);
-    genOpenMPReduction(converter, semaCtx, loopOpClauseList);
+    genSimdLoopOp(converter, semaCtx, eval, currentLocation, beginClauseList);
   } else {
-    createWsloop(converter, semaCtx, eval, ompDirective, loopOpClauseList,
-                 endClauseList, currentLocation);
+    genWsloopOp(converter, semaCtx, eval, currentLocation, beginClauseList,
+                endClauseList);
   }
 }
 
@@ -2220,44 +2276,39 @@ genOMP(Fortran::lower::AbstractConverter &converter,
        Fortran::semantics::SemanticsContext &semaCtx,
        Fortran::lower::pft::Evaluation &eval,
        const Fortran::parser::OpenMPSectionsConstruct &sectionsConstruct) {
-  mlir::Location currentLocation = converter.getCurrentLocation();
-  mlir::omp::SectionsClauseOps clauseOps;
   const auto &beginSectionsDirective =
       std::get<Fortran::parser::OmpBeginSectionsDirective>(sectionsConstruct.t);
-  const auto &sectionsClauseList =
+  const auto &beginClauseList =
       std::get<Fortran::parser::OmpClauseList>(beginSectionsDirective.t);
 
   // Process clauses before optional omp.parallel, so that new variables are
   // allocated outside of the parallel region
-  ClauseProcessor cp(converter, semaCtx, sectionsClauseList);
-  cp.processSectionsReduction(currentLocation, clauseOps);
-  cp.processAllocate(clauseOps);
-  // TODO Support delayed privatization.
+  mlir::Location currentLocation = converter.getCurrentLocation();
+  mlir::omp::SectionsClauseOps clauseOps;
+  genSectionsClauses(converter, semaCtx, beginClauseList, currentLocation,
+                     /*clausesFromBeginSections=*/true, clauseOps);
 
+  // Parallel wrapper of PARALLEL SECTIONS construct
   llvm::omp::Directive dir =
       std::get<Fortran::parser::OmpSectionsDirective>(beginSectionsDirective.t)
           .v;
-
-  // Parallel wrapper of PARALLEL SECTIONS construct
   if (dir == llvm::omp::Directive::OMPD_parallel_sections) {
     genParallelOp(converter, symTable, semaCtx, eval,
-                  /*genNested=*/false, currentLocation, sectionsClauseList,
+                  /*genNested=*/false, currentLocation, beginClauseList,
                   /*outerCombined=*/true);
   } else {
     const auto &endSectionsDirective =
         std::get<Fortran::parser::OmpEndSectionsDirective>(sectionsConstruct.t);
-    const auto &endSectionsClauseList =
+    const auto &endClauseList =
         std::get<Fortran::parser::OmpClauseList>(endSectionsDirective.t);
-    ClauseProcessor(converter, semaCtx, endSectionsClauseList)
-        .processNowait(clauseOps);
+    genSectionsClauses(converter, semaCtx, endClauseList, currentLocation,
+                       /*clausesFromBeginSections=*/false, clauseOps);
   }
 
-  // SECTIONS construct
-  genOpWithBody<mlir::omp::SectionsOp>(
-      OpWithBodyGenInfo(converter, semaCtx, currentLocation, eval)
-          .setGenNested(false),
-      clauseOps);
+  // SECTIONS construct.
+  genSectionsOp(converter, semaCtx, eval, currentLocation, clauseOps);
 
+  // Generate nested SECTION operations recursively.
   const auto &sectionBlocks =
       std::get<Fortran::parser::OmpSectionBlocks>(sectionsConstruct.t);
   auto &firOpBuilder = converter.getFirOpBuilder();
@@ -2266,40 +2317,12 @@ genOMP(Fortran::lower::AbstractConverter &converter,
        llvm::zip(sectionBlocks.v, eval.getNestedEvaluations())) {
     symTable.pushScope();
     genSectionOp(converter, semaCtx, neval, /*genNested=*/true, currentLocation,
-                 sectionsClauseList);
+                 beginClauseList);
     symTable.popScope();
     firOpBuilder.restoreInsertionPoint(ip);
   }
 }
 
-static void
-genOMP(Fortran::lower::AbstractConverter &converter,
-       Fortran::lower::SymMap &symTable,
-       Fortran::semantics::SemanticsContext &semaCtx,
-       Fortran::lower::pft::Evaluation &eval,
-       const Fortran::parser::OpenMPStandaloneConstruct &standaloneConstruct) {
-  std::visit(
-      Fortran::common::visitors{
-          [&](const Fortran::parser::OpenMPSimpleStandaloneConstruct
-                  &simpleStandaloneConstruct) {
-            genOmpSimpleStandalone(converter, semaCtx, eval,
-                                   /*genNested=*/true,
-                                   simpleStandaloneConstruct);
-          },
-          [&](const Fortran::parser::OpenMPFlushConstruct &flushConstruct) {
-            genOmpFlush(converter, semaCtx, eval, flushConstruct);
-          },
-          [&](const Fortran::parser::OpenMPCancelConstruct &cancelConstruct) {
-            TODO(converter.getCurrentLocation(), "OpenMPCancelConstruct");
-          },
-          [&](const Fortran::parser::OpenMPCancellationPointConstruct
-                  &cancellationPointConstruct) {
-            TODO(converter.getCurrentLocation(), "OpenMPCancelConstruct");
-          },
-      },
-      standaloneConstruct.u);
-}
-
 static void genOMP(Fortran::lower::AbstractConverter &converter,
                    Fortran::lower::SymMap &symTable,
                    Fortran::semantics::SemanticsContext &semaCtx,
diff --git a/flang/runtime/extensions.cpp b/flang/runtime/extensions.cpp
index 3ac98000335d..12498b502ae1 100644
--- a/flang/runtime/extensions.cpp
+++ b/flang/runtime/extensions.cpp
@@ -17,6 +17,7 @@
 #include "flang/Runtime/entry-names.h"
 #include "flang/Runtime/io-api.h"
 #include <chrono>
+#include <cstring>
 #include <ctime>
 #include <signal.h>
 #include <thread>
@@ -138,5 +139,77 @@ void RTNAME(Sleep)(std::int64_t seconds) {
   std::this_thread::sleep_for(std::chrono::seconds(seconds));
 }
 
+// TODO: not supported on Windows
+#ifndef _WIN32
+std::int64_t FORTRAN_PROCEDURE_NAME(access)(const char *name,
+    std::int64_t nameLength, const char *mode, std::int64_t modeLength) {
+  std::int64_t ret{-1};
+  if (nameLength <= 0 || modeLength <= 0 || !name || !mode) {
+    return ret;
+  }
+
+  // ensure name is null terminated
+  char *newName{nullptr};
+  if (name[nameLength - 1] != '\0') {
+    newName = static_cast<char *>(std::malloc(nameLength + 1));
+    std::memcpy(newName, name, nameLength);
+    newName[nameLength] = '\0';
+    name = newName;
+  }
+
+  // calculate mode
+  bool read{false};
+  bool write{false};
+  bool execute{false};
+  bool exists{false};
+  int imode{0};
+
+  for (std::int64_t i = 0; i < modeLength; ++i) {
+    switch (mode[i]) {
+    case 'r':
+      read = true;
+      break;
+    case 'w':
+      write = true;
+      break;
+    case 'x':
+      execute = true;
+      break;
+    case ' ':
+      exists = true;
+      break;
+    default:
+      // invalid mode
+      goto cleanup;
+    }
+  }
+  if (!read && !write && !execute && !exists) {
+    // invalid mode
+    goto cleanup;
+  }
+
+  if (!read && !write && !execute) {
+    imode = F_OK;
+  } else {
+    if (read) {
+      imode |= R_OK;
+    }
+    if (write) {
+      imode |= W_OK;
+    }
+    if (execute) {
+      imode |= X_OK;
+    }
+  }
+  ret = access(name, imode);
+
+cleanup:
+  if (newName) {
+    free(newName);
+  }
+  return ret;
+}
+#endif
+
 } // namespace Fortran::runtime
 } // extern "C"
diff --git a/flang/test/Lower/OpenMP/FIR/target.f90 b/flang/test/Lower/OpenMP/FIR/target.f90
index 022327f9c25d..ca3162340d78 100644
--- a/flang/test/Lower/OpenMP/FIR/target.f90
+++ b/flang/test/Lower/OpenMP/FIR/target.f90
@@ -411,8 +411,8 @@ end subroutine omp_target_implicit_bounds
 !CHECK-LABEL: func.func @_QPomp_target_thread_limit() {
 subroutine omp_target_thread_limit
    integer :: a
-   !CHECK: %[[VAL_1:.*]] = arith.constant 64 : i32
    !CHECK: %[[MAP:.*]] = omp.map.info var_ptr({{.*}})   map_clauses(tofrom) capture(ByRef) -> !fir.ref<i32> {name = "a"}
+   !CHECK: %[[VAL_1:.*]] = arith.constant 64 : i32
    !CHECK: omp.target   thread_limit(%[[VAL_1]] : i32) map_entries(%[[MAP]] -> %[[ARG_0:.*]] : !fir.ref<i32>) {
    !CHECK: ^bb0(%[[ARG_0]]: !fir.ref<i32>):
    !$omp target map(tofrom: a) thread_limit(64)
diff --git a/flang/test/Lower/OpenMP/target.f90 b/flang/test/Lower/OpenMP/target.f90
index 6f72b5a34d06..51b66327dfb2 100644
--- a/flang/test/Lower/OpenMP/target.f90
+++ b/flang/test/Lower/OpenMP/target.f90
@@ -490,8 +490,8 @@ end subroutine omp_target_implicit_bounds
 !CHECK-LABEL: func.func @_QPomp_target_thread_limit() {
 subroutine omp_target_thread_limit
    integer :: a
-   !CHECK: %[[VAL_1:.*]] = arith.constant 64 : i32
    !CHECK: %[[MAP:.*]] = omp.map.info var_ptr({{.*}})   map_clauses(tofrom) capture(ByRef) -> !fir.ref<i32> {name = "a"}
+   !CHECK: %[[VAL_1:.*]] = arith.constant 64 : i32
    !CHECK: omp.target   thread_limit(%[[VAL_1]] : i32) map_entries(%[[MAP]] -> %{{.*}} : !fir.ref<i32>) {
    !CHECK: ^bb0(%{{.*}}: !fir.ref<i32>):
    !$omp target map(tofrom: a) thread_limit(64)
diff --git a/flang/test/Lower/OpenMP/use-device-ptr-to-use-device-addr.f90 b/flang/test/Lower/OpenMP/use-device-ptr-to-use-device-addr.f90
index 33b597165601..d849dd206b94 100644
--- a/flang/test/Lower/OpenMP/use-device-ptr-to-use-device-addr.f90
+++ b/flang/test/Lower/OpenMP/use-device-ptr-to-use-device-addr.f90
@@ -21,7 +21,7 @@ end subroutine
 
 !CHECK: func.func @{{.*}}mix_use_device_ptr_and_addr()
 !CHECK: omp.target_data use_device_ptr({{.*}} : !fir.ref<!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>>) use_device_addr(%{{.*}}, %{{.*}} : !fir.ref<!fir.box<!fir.ptr<!fir.array<?xi32>>>>, !fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>) {
-!CHECK: ^bb0(%{{.*}}: !fir.ref<!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>>, %{{.*}}: !fir.ref<!fir.box<!fir.ptr<!fir.array<?xi32>>>>, %{{.*}}: !fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>):
+!CHECK: ^bb0(%{{.*}}: !fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>, %{{.*}}: !fir.ref<!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>>, %{{.*}}: !fir.ref<!fir.box<!fir.ptr<!fir.array<?xi32>>>>):
 subroutine mix_use_device_ptr_and_addr 
     use iso_c_binding
     integer, pointer, dimension(:) :: array
@@ -47,7 +47,7 @@ end subroutine
 
 !CHECK: func.func @{{.*}}mix_use_device_ptr_and_addr_and_map()
 !CHECK: omp.target_data map_entries(%{{.*}}, %{{.*}} : !fir.ref<i32>, !fir.ref<i32>) use_device_ptr(%{{.*}} : !fir.ref<!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>>) use_device_addr(%{{.*}}, %{{.*}} : !fir.ref<!fir.box<!fir.ptr<!fir.array<?xi32>>>>, !fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>) {
-!CHECK: ^bb0(%{{.*}}: !fir.ref<!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>>, %{{.*}}: !fir.ref<!fir.box<!fir.ptr<!fir.array<?xi32>>>>, %{{.*}}: !fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>):
+!CHECK: ^bb0(%{{.*}}: !fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>, %{{.*}}: !fir.ref<!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>>, %{{.*}}: !fir.ref<!fir.box<!fir.ptr<!fir.array<?xi32>>>>):
 subroutine mix_use_device_ptr_and_addr_and_map
     use iso_c_binding
     integer :: i, j
diff --git a/flang/unittests/Runtime/AccessTest.cpp b/flang/unittests/Runtime/AccessTest.cpp
new file mode 100644
index 000000000000..66f19f78c7cf
--- /dev/null
+++ b/flang/unittests/Runtime/AccessTest.cpp
@@ -0,0 +1,422 @@
+//===-- flang/unittests/Runtime/AccessTest.cpp ----------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+// TODO: ACCESS is not yet implemented on Windows
+#ifndef _WIN32
+
+#include "CrashHandlerFixture.h"
+#include "gtest/gtest.h"
+#include "flang/Runtime/extensions.h"
+#include "llvm/ADT/Twine.h"
+
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+namespace {
+
+struct AccessTests : public CrashHandlerFixture {};
+
+struct AccessType {
+  bool read{false};
+  bool write{false};
+  bool execute{false};
+  bool exists{false};
+};
+
+} // namespace
+
+static std::string addPIDSuffix(const char *name) {
+  std::stringstream ss;
+  ss << name;
+  ss << '.';
+
+  ss << getpid();
+
+  return ss.str();
+}
+
+static bool exists(const std::string &path) {
+  return access(path.c_str(), F_OK) == 0;
+}
+
+// Implementation of std::filesystem::temp_directory_path adapted from libcxx
+// See llvm-project/libcxx/src/filesystem/operations.cpp
+// Using std::filesystem is inconvenient because the required flags are not
+// consistent accross compilers and CMake doesn't have built in support to
+// determine the correct flags.
+static const char *temp_directory_path() {
+  // TODO: Windows
+  const char *env_paths[] = {"TMPDIR", "TMP", "TEMP", "TEMPDIR"};
+  const char *ret = nullptr;
+
+  for (auto &ep : env_paths) {
+    if ((ret = getenv(ep))) {
+      break;
+    }
+  }
+
+  if (ret == nullptr) {
+#if defined(__ANDROID__)
+    ret = "/data/local/tmp";
+#else
+    ret = "/tmp";
+#endif
+  }
+
+  assert(exists(ret));
+  return ret;
+}
+
+static std::string createTemporaryFile(
+    const char *name, const AccessType &accessType) {
+  std::string path =
+      (llvm::Twine{temp_directory_path()} + "/" + addPIDSuffix(name)).str();
+
+  // O_CREAT | O_EXCL enforces that this file is newly created by this call.
+  // This feels risky. If we don't have permission to create files in the
+  // temporary directory or if the files already exist, the test will fail.
+  // But we can't use std::tmpfile() because we need a path to the file and
+  // to control the filesystem permissions
+  mode_t mode{0};
+  if (accessType.read) {
+    mode |= S_IRUSR;
+  }
+  if (accessType.write) {
+    mode |= S_IWUSR;
+  }
+  if (accessType.execute) {
+    mode |= S_IXUSR;
+  }
+
+  int file = open(path.c_str(), O_CREAT | O_EXCL, mode);
+  if (file == -1) {
+    return {};
+  }
+
+  close(file);
+
+  return path;
+}
+
+static std::int64_t callAccess(
+    const std::string &path, const AccessType &accessType) {
+  const char *cpath{path.c_str()};
+  std::int64_t pathlen = std::strlen(cpath);
+
+  std::string mode;
+  if (accessType.read) {
+    mode += 'r';
+  }
+  if (accessType.write) {
+    mode += 'w';
+  }
+  if (accessType.execute) {
+    mode += 'x';
+  }
+  if (accessType.exists) {
+    mode += ' ';
+  }
+
+  const char *cmode = mode.c_str();
+  std::int64_t modelen = std::strlen(cmode);
+
+  return FORTRAN_PROCEDURE_NAME(access)(cpath, pathlen, cmode, modelen);
+}
+
+TEST(AccessTests, TestExists) {
+  AccessType accessType;
+  accessType.exists = true;
+
+  std::string path = createTemporaryFile(__func__, accessType);
+  ASSERT_FALSE(path.empty());
+
+  std::int64_t res = callAccess(path, accessType);
+
+  ASSERT_EQ(unlink(path.c_str()), 0);
+
+  ASSERT_EQ(res, 0);
+}
+
+TEST(AccessTests, TestNotExists) {
+  std::string nonExistant{addPIDSuffix(__func__)};
+  ASSERT_FALSE(exists(nonExistant));
+
+  AccessType accessType;
+  accessType.exists = true;
+  std::int64_t res = callAccess(nonExistant, accessType);
+
+  ASSERT_NE(res, 0);
+}
+
+TEST(AccessTests, TestRead) {
+  AccessType accessType;
+  accessType.read = true;
+
+  std::string path = createTemporaryFile(__func__, accessType);
+  ASSERT_FALSE(path.empty());
+
+  std::int64_t res = callAccess(path, accessType);
+
+  ASSERT_EQ(unlink(path.c_str()), 0);
+
+  ASSERT_EQ(res, 0);
+}
+
+TEST(AccessTests, TestNotRead) {
+  AccessType accessType;
+  accessType.read = false;
+
+  std::string path = createTemporaryFile(__func__, accessType);
+  ASSERT_FALSE(path.empty());
+
+  accessType.read = true;
+  std::int64_t res = callAccess(path, accessType);
+
+  ASSERT_EQ(unlink(path.c_str()), 0);
+
+  ASSERT_NE(res, 0);
+}
+
+TEST(AccessTests, TestWrite) {
+  AccessType accessType;
+  accessType.write = true;
+
+  std::string path = createTemporaryFile(__func__, accessType);
+  ASSERT_FALSE(path.empty());
+
+  std::int64_t res = callAccess(path, accessType);
+
+  ASSERT_EQ(unlink(path.c_str()), 0);
+
+  ASSERT_EQ(res, 0);
+}
+
+TEST(AccessTests, TestNotWrite) {
+  AccessType accessType;
+  accessType.write = false;
+
+  std::string path = createTemporaryFile(__func__, accessType);
+  ASSERT_FALSE(path.empty());
+
+  accessType.write = true;
+  std::int64_t res = callAccess(path, accessType);
+
+  ASSERT_EQ(unlink(path.c_str()), 0);
+
+  ASSERT_NE(res, 0);
+}
+
+TEST(AccessTests, TestReadWrite) {
+  AccessType accessType;
+  accessType.read = true;
+  accessType.write = true;
+
+  std::string path = createTemporaryFile(__func__, accessType);
+  ASSERT_FALSE(path.empty());
+
+  std::int64_t res = callAccess(path, accessType);
+
+  ASSERT_EQ(unlink(path.c_str()), 0);
+
+  ASSERT_EQ(res, 0);
+}
+
+TEST(AccessTests, TestNotReadWrite0) {
+  AccessType accessType;
+  accessType.read = false;
+  accessType.write = false;
+
+  std::string path = createTemporaryFile(__func__, accessType);
+  ASSERT_FALSE(path.empty());
+
+  accessType.read = true;
+  accessType.write = true;
+  std::int64_t res = callAccess(path, accessType);
+
+  ASSERT_EQ(unlink(path.c_str()), 0);
+
+  ASSERT_NE(res, 0);
+}
+
+TEST(AccessTests, TestNotReadWrite1) {
+  AccessType accessType;
+  accessType.read = true;
+  accessType.write = false;
+
+  std::string path = createTemporaryFile(__func__, accessType);
+  ASSERT_FALSE(path.empty());
+
+  accessType.read = true;
+  accessType.write = true;
+  std::int64_t res = callAccess(path, accessType);
+
+  ASSERT_EQ(unlink(path.c_str()), 0);
+
+  ASSERT_NE(res, 0);
+}
+
+TEST(AccessTests, TestNotReadWrite2) {
+  AccessType accessType;
+  accessType.read = false;
+  accessType.write = true;
+
+  std::string path = createTemporaryFile(__func__, accessType);
+  ASSERT_FALSE(path.empty());
+
+  accessType.read = true;
+  accessType.write = true;
+  std::int64_t res = callAccess(path, accessType);
+
+  ASSERT_EQ(unlink(path.c_str()), 0);
+
+  ASSERT_NE(res, 0);
+}
+
+TEST(AccessTests, TestExecute) {
+  AccessType accessType;
+  accessType.execute = true;
+
+  std::string path = createTemporaryFile(__func__, accessType);
+  ASSERT_FALSE(path.empty());
+
+  std::int64_t res = callAccess(path, accessType);
+
+  ASSERT_EQ(unlink(path.c_str()), 0);
+
+  ASSERT_EQ(res, 0);
+}
+
+TEST(AccessTests, TestNotExecute) {
+  AccessType accessType;
+  accessType.execute = false;
+
+  std::string path = createTemporaryFile(__func__, accessType);
+  ASSERT_FALSE(path.empty());
+
+  accessType.execute = true;
+  std::int64_t res = callAccess(path, accessType);
+
+  ASSERT_EQ(unlink(path.c_str()), 0);
+
+  ASSERT_NE(res, 0);
+}
+
+TEST(AccessTests, TestRWX) {
+  AccessType accessType;
+  accessType.read = true;
+  accessType.write = true;
+  accessType.execute = true;
+
+  std::string path = createTemporaryFile(__func__, accessType);
+  ASSERT_FALSE(path.empty());
+
+  std::int64_t res = callAccess(path, accessType);
+
+  ASSERT_EQ(unlink(path.c_str()), 0);
+
+  ASSERT_EQ(res, 0);
+}
+
+TEST(AccessTests, TestNotRWX0) {
+  AccessType accessType;
+  accessType.read = false;
+  accessType.write = false;
+  accessType.execute = false;
+
+  std::string path = createTemporaryFile(__func__, accessType);
+  ASSERT_FALSE(path.empty());
+
+  accessType.read = true;
+  accessType.write = true;
+  accessType.execute = true;
+  std::int64_t res = callAccess(path, accessType);
+
+  ASSERT_EQ(unlink(path.c_str()), 0);
+
+  ASSERT_NE(res, 0);
+}
+
+TEST(AccessTests, TestNotRWX1) {
+  AccessType accessType;
+  accessType.read = true;
+  accessType.write = false;
+  accessType.execute = false;
+
+  std::string path = createTemporaryFile(__func__, accessType);
+  ASSERT_FALSE(path.empty());
+
+  accessType.read = true;
+  accessType.write = true;
+  accessType.execute = true;
+  std::int64_t res = callAccess(path, accessType);
+
+  ASSERT_EQ(unlink(path.c_str()), 0);
+
+  ASSERT_NE(res, 0);
+}
+
+TEST(AccessTests, TestNotRWX2) {
+  AccessType accessType;
+  accessType.read = true;
+  accessType.write = true;
+  accessType.execute = false;
+
+  std::string path = createTemporaryFile(__func__, accessType);
+  ASSERT_FALSE(path.empty());
+
+  accessType.read = true;
+  accessType.write = true;
+  accessType.execute = true;
+  std::int64_t res = callAccess(path, accessType);
+
+  ASSERT_EQ(unlink(path.c_str()), 0);
+
+  ASSERT_NE(res, 0);
+}
+
+TEST(AccessTests, TestNotRWX3) {
+  AccessType accessType;
+  accessType.read = true;
+  accessType.write = false;
+  accessType.execute = true;
+
+  std::string path = createTemporaryFile(__func__, accessType);
+  ASSERT_FALSE(path.empty());
+
+  accessType.read = true;
+  accessType.write = true;
+  accessType.execute = true;
+  std::int64_t res = callAccess(path, accessType);
+
+  ASSERT_EQ(unlink(path.c_str()), 0);
+
+  ASSERT_NE(res, 0);
+}
+
+TEST(AccessTests, TestNotRWX4) {
+  AccessType accessType;
+  accessType.read = false;
+  accessType.write = true;
+  accessType.execute = true;
+
+  std::string path = createTemporaryFile(__func__, accessType);
+  ASSERT_FALSE(path.empty());
+
+  accessType.read = true;
+  accessType.write = true;
+  accessType.execute = true;
+  std::int64_t res = callAccess(path, accessType);
+
+  ASSERT_EQ(unlink(path.c_str()), 0);
+
+  ASSERT_NE(res, 0);
+}
+
+#endif // !_WIN32
diff --git a/flang/unittests/Runtime/CMakeLists.txt b/flang/unittests/Runtime/CMakeLists.txt
index 23f02aa75124..f7caacad3a59 100644
--- a/flang/unittests/Runtime/CMakeLists.txt
+++ b/flang/unittests/Runtime/CMakeLists.txt
@@ -1,4 +1,5 @@
 add_flang_unittest(FlangRuntimeTests
+  AccessTest.cpp
   Allocatable.cpp
   ArrayConstructor.cpp
   BufferTest.cpp
diff --git a/libcxx/include/__algorithm/pstl_backends/cpu_backends/any_of.h b/libcxx/include/__algorithm/pstl_backends/cpu_backends/any_of.h
index be5e54f3fa5c..3755d288047e 100644
--- a/libcxx/include/__algorithm/pstl_backends/cpu_backends/any_of.h
+++ b/libcxx/include/__algorithm/pstl_backends/cpu_backends/any_of.h
@@ -34,7 +34,7 @@ _LIBCPP_BEGIN_NAMESPACE_STD
 template <class _Backend, class _Index, class _Brick>
 _LIBCPP_HIDE_FROM_ABI optional<bool> __parallel_or(_Index __first, _Index __last, _Brick __f) {
   std::atomic<bool> __found(false);
-  auto __ret = __pstl::__cpu_traits<_Backend>::__parallel_for(__first, __last, [__f, &__found](_Index __i, _Index __j) {
+  auto __ret = __pstl::__cpu_traits<_Backend>::__for_each(__first, __last, [__f, &__found](_Index __i, _Index __j) {
     if (!__found.load(std::memory_order_relaxed) && __f(__i, __j)) {
       __found.store(true, std::memory_order_relaxed);
       __pstl::__cpu_traits<_Backend>::__cancel_execution();
diff --git a/libcxx/include/__algorithm/pstl_backends/cpu_backends/fill.h b/libcxx/include/__algorithm/pstl_backends/cpu_backends/fill.h
index 49a32f6c5ce5..0c20bdff6267 100644
--- a/libcxx/include/__algorithm/pstl_backends/cpu_backends/fill.h
+++ b/libcxx/include/__algorithm/pstl_backends/cpu_backends/fill.h
@@ -40,7 +40,7 @@ _LIBCPP_HIDE_FROM_ABI optional<__empty>
 __pstl_fill(__cpu_backend_tag, _ForwardIterator __first, _ForwardIterator __last, const _Tp& __value) {
   if constexpr (__is_parallel_execution_policy_v<_ExecutionPolicy> &&
                 __has_random_access_iterator_category_or_concept<_ForwardIterator>::value) {
-    return __pstl::__cpu_traits<__cpu_backend_tag>::__parallel_for(
+    return __pstl::__cpu_traits<__cpu_backend_tag>::__for_each(
         __first, __last, [&__value](_ForwardIterator __brick_first, _ForwardIterator __brick_last) {
           [[maybe_unused]] auto __res = std::__pstl_fill<__remove_parallel_policy_t<_ExecutionPolicy>>(
               __cpu_backend_tag{}, __brick_first, __brick_last, __value);
diff --git a/libcxx/include/__algorithm/pstl_backends/cpu_backends/find_if.h b/libcxx/include/__algorithm/pstl_backends/cpu_backends/find_if.h
index 11a5668bf25a..626293faef69 100644
--- a/libcxx/include/__algorithm/pstl_backends/cpu_backends/find_if.h
+++ b/libcxx/include/__algorithm/pstl_backends/cpu_backends/find_if.h
@@ -42,7 +42,7 @@ __parallel_find(_Index __first, _Index __last, _Brick __f, _Compare __comp, bool
   _DifferenceType __initial_dist = __b_first ? __n : -1;
   std::atomic<_DifferenceType> __extremum(__initial_dist);
   // TODO: find out what is better here: parallel_for or parallel_reduce
-  auto __res = __pstl::__cpu_traits<_Backend>::__parallel_for(
+  auto __res = __pstl::__cpu_traits<_Backend>::__for_each(
       __first, __last, [__comp, __f, __first, &__extremum](_Index __i, _Index __j) {
         // See "Reducing Contention Through Priority Updates", PPoPP '13, for discussion of
         // why using a shared variable scales fairly well in this situation.
diff --git a/libcxx/include/__algorithm/pstl_backends/cpu_backends/for_each.h b/libcxx/include/__algorithm/pstl_backends/cpu_backends/for_each.h
index 1667ec0f0c4f..d637084e151d 100644
--- a/libcxx/include/__algorithm/pstl_backends/cpu_backends/for_each.h
+++ b/libcxx/include/__algorithm/pstl_backends/cpu_backends/for_each.h
@@ -40,7 +40,7 @@ _LIBCPP_HIDE_FROM_ABI optional<__empty>
 __pstl_for_each(__cpu_backend_tag, _ForwardIterator __first, _ForwardIterator __last, _Functor __func) {
   if constexpr (__is_parallel_execution_policy_v<_ExecutionPolicy> &&
                 __has_random_access_iterator_category_or_concept<_ForwardIterator>::value) {
-    return __pstl::__cpu_traits<__cpu_backend_tag>::__parallel_for(
+    return __pstl::__cpu_traits<__cpu_backend_tag>::__for_each(
         __first, __last, [__func](_ForwardIterator __brick_first, _ForwardIterator __brick_last) {
           [[maybe_unused]] auto __res = std::__pstl_for_each<__remove_parallel_policy_t<_ExecutionPolicy>>(
               __cpu_backend_tag{}, __brick_first, __brick_last, __func);
diff --git a/libcxx/include/__algorithm/pstl_backends/cpu_backends/libdispatch.h b/libcxx/include/__algorithm/pstl_backends/cpu_backends/libdispatch.h
index 8757f2496803..17faadf55dd4 100644
--- a/libcxx/include/__algorithm/pstl_backends/cpu_backends/libdispatch.h
+++ b/libcxx/include/__algorithm/pstl_backends/cpu_backends/libdispatch.h
@@ -85,7 +85,7 @@ template <>
 struct __cpu_traits<__libdispatch_backend_tag> {
   template <class _RandomAccessIterator, class _Functor>
   _LIBCPP_HIDE_FROM_ABI static optional<__empty>
-  __parallel_for(_RandomAccessIterator __first, _RandomAccessIterator __last, _Functor __func) {
+  __for_each(_RandomAccessIterator __first, _RandomAccessIterator __last, _Functor __func) {
     return __libdispatch::__dispatch_parallel_for(
         __libdispatch::__partition_chunks(__last - __first), std::move(__first), std::move(__func));
   }
@@ -105,14 +105,14 @@ struct __cpu_traits<__libdispatch_backend_tag> {
             typename _RandomAccessIterator3,
             typename _Compare,
             typename _LeafMerge>
-  _LIBCPP_HIDE_FROM_ABI static optional<__empty> __parallel_merge(
-      _RandomAccessIterator1 __first1,
-      _RandomAccessIterator1 __last1,
-      _RandomAccessIterator2 __first2,
-      _RandomAccessIterator2 __last2,
-      _RandomAccessIterator3 __result,
-      _Compare __comp,
-      _LeafMerge __leaf_merge) noexcept {
+  _LIBCPP_HIDE_FROM_ABI static optional<__empty>
+  __merge(_RandomAccessIterator1 __first1,
+          _RandomAccessIterator1 __last1,
+          _RandomAccessIterator2 __first2,
+          _RandomAccessIterator2 __last2,
+          _RandomAccessIterator3 __result,
+          _Compare __comp,
+          _LeafMerge __leaf_merge) noexcept {
     __libdispatch::__chunk_partitions __partitions =
         __libdispatch::__partition_chunks(std::max<ptrdiff_t>(__last1 - __first1, __last2 - __first2));
 
@@ -201,7 +201,7 @@ struct __cpu_traits<__libdispatch_backend_tag> {
   }
 
   template <class _RandomAccessIterator, class _Transform, class _Value, class _Combiner, class _Reduction>
-  _LIBCPP_HIDE_FROM_ABI static optional<_Value> __parallel_transform_reduce(
+  _LIBCPP_HIDE_FROM_ABI static optional<_Value> __transform_reduce(
       _RandomAccessIterator __first,
       _RandomAccessIterator __last,
       _Transform __transform,
@@ -248,8 +248,8 @@ struct __cpu_traits<__libdispatch_backend_tag> {
   }
 
   template <class _RandomAccessIterator, class _Comp, class _LeafSort>
-  _LIBCPP_HIDE_FROM_ABI static optional<__empty> __parallel_stable_sort(
-      _RandomAccessIterator __first, _RandomAccessIterator __last, _Comp __comp, _LeafSort __leaf_sort) {
+  _LIBCPP_HIDE_FROM_ABI static optional<__empty>
+  __stable_sort(_RandomAccessIterator __first, _RandomAccessIterator __last, _Comp __comp, _LeafSort __leaf_sort) {
     const auto __size = __last - __first;
     auto __partitions = __libdispatch::__partition_chunks(__size);
 
diff --git a/libcxx/include/__algorithm/pstl_backends/cpu_backends/merge.h b/libcxx/include/__algorithm/pstl_backends/cpu_backends/merge.h
index d03444790487..c93f4051c9d0 100644
--- a/libcxx/include/__algorithm/pstl_backends/cpu_backends/merge.h
+++ b/libcxx/include/__algorithm/pstl_backends/cpu_backends/merge.h
@@ -46,7 +46,7 @@ _LIBCPP_HIDE_FROM_ABI optional<_ForwardOutIterator> __pstl_merge(
                 __has_random_access_iterator_category_or_concept<_ForwardIterator1>::value &&
                 __has_random_access_iterator_category_or_concept<_ForwardIterator2>::value &&
                 __has_random_access_iterator_category_or_concept<_ForwardOutIterator>::value) {
-    auto __res = __pstl::__cpu_traits<__cpu_backend_tag>::__parallel_merge(
+    auto __res = __pstl::__cpu_traits<__cpu_backend_tag>::__merge(
         __first1,
         __last1,
         __first2,
diff --git a/libcxx/include/__algorithm/pstl_backends/cpu_backends/serial.h b/libcxx/include/__algorithm/pstl_backends/cpu_backends/serial.h
index c3d2905daed1..7544619a8eef 100644
--- a/libcxx/include/__algorithm/pstl_backends/cpu_backends/serial.h
+++ b/libcxx/include/__algorithm/pstl_backends/cpu_backends/serial.h
@@ -35,20 +35,20 @@ template <>
 struct __cpu_traits<__serial_backend_tag> {
   template <class _RandomAccessIterator, class _Fp>
   _LIBCPP_HIDE_FROM_ABI static optional<__empty>
-  __parallel_for(_RandomAccessIterator __first, _RandomAccessIterator __last, _Fp __f) {
+  __for_each(_RandomAccessIterator __first, _RandomAccessIterator __last, _Fp __f) {
     __f(__first, __last);
     return __empty{};
   }
 
   template <class _Index, class _UnaryOp, class _Tp, class _BinaryOp, class _Reduce>
   _LIBCPP_HIDE_FROM_ABI static optional<_Tp>
-  __parallel_transform_reduce(_Index __first, _Index __last, _UnaryOp, _Tp __init, _BinaryOp, _Reduce __reduce) {
+  __transform_reduce(_Index __first, _Index __last, _UnaryOp, _Tp __init, _BinaryOp, _Reduce __reduce) {
     return __reduce(std::move(__first), std::move(__last), std::move(__init));
   }
 
   template <class _RandomAccessIterator, class _Compare, class _LeafSort>
-  _LIBCPP_HIDE_FROM_ABI static optional<__empty> __parallel_stable_sort(
-      _RandomAccessIterator __first, _RandomAccessIterator __last, _Compare __comp, _LeafSort __leaf_sort) {
+  _LIBCPP_HIDE_FROM_ABI static optional<__empty>
+  __stable_sort(_RandomAccessIterator __first, _RandomAccessIterator __last, _Compare __comp, _LeafSort __leaf_sort) {
     __leaf_sort(__first, __last, __comp);
     return __empty{};
   }
@@ -60,14 +60,14 @@ struct __cpu_traits<__serial_backend_tag> {
             class _RandomAccessIterator3,
             class _Compare,
             class _LeafMerge>
-  _LIBCPP_HIDE_FROM_ABI static optional<__empty> __parallel_merge(
-      _RandomAccessIterator1 __first1,
-      _RandomAccessIterator1 __last1,
-      _RandomAccessIterator2 __first2,
-      _RandomAccessIterator2 __last2,
-      _RandomAccessIterator3 __outit,
-      _Compare __comp,
-      _LeafMerge __leaf_merge) {
+  _LIBCPP_HIDE_FROM_ABI static optional<__empty>
+  __merge(_RandomAccessIterator1 __first1,
+          _RandomAccessIterator1 __last1,
+          _RandomAccessIterator2 __first2,
+          _RandomAccessIterator2 __last2,
+          _RandomAccessIterator3 __outit,
+          _Compare __comp,
+          _LeafMerge __leaf_merge) {
     __leaf_merge(__first1, __last1, __first2, __last2, __outit, __comp);
     return __empty{};
   }
diff --git a/libcxx/include/__algorithm/pstl_backends/cpu_backends/stable_sort.h b/libcxx/include/__algorithm/pstl_backends/cpu_backends/stable_sort.h
index ebfa0fc69147..8c60cf897ff8 100644
--- a/libcxx/include/__algorithm/pstl_backends/cpu_backends/stable_sort.h
+++ b/libcxx/include/__algorithm/pstl_backends/cpu_backends/stable_sort.h
@@ -29,7 +29,7 @@ template <class _ExecutionPolicy, class _RandomAccessIterator, class _Comp>
 _LIBCPP_HIDE_FROM_ABI optional<__empty>
 __pstl_stable_sort(__cpu_backend_tag, _RandomAccessIterator __first, _RandomAccessIterator __last, _Comp __comp) {
   if constexpr (__is_parallel_execution_policy_v<_ExecutionPolicy>) {
-    return __pstl::__cpu_traits<__cpu_backend_tag>::__parallel_stable_sort(
+    return __pstl::__cpu_traits<__cpu_backend_tag>::__stable_sort(
         __first, __last, __comp, [](_RandomAccessIterator __g_first, _RandomAccessIterator __g_last, _Comp __g_comp) {
           std::stable_sort(__g_first, __g_last, __g_comp);
         });
diff --git a/libcxx/include/__algorithm/pstl_backends/cpu_backends/thread.h b/libcxx/include/__algorithm/pstl_backends/cpu_backends/thread.h
index 8d1cb221c3d8..2acf912264a0 100644
--- a/libcxx/include/__algorithm/pstl_backends/cpu_backends/thread.h
+++ b/libcxx/include/__algorithm/pstl_backends/cpu_backends/thread.h
@@ -38,20 +38,20 @@ template <>
 struct __cpu_traits<__std_thread_backend_tag> {
   template <class _RandomAccessIterator, class _Fp>
   _LIBCPP_HIDE_FROM_ABI static optional<__empty>
-  __parallel_for(_RandomAccessIterator __first, _RandomAccessIterator __last, _Fp __f) {
+  __for_each(_RandomAccessIterator __first, _RandomAccessIterator __last, _Fp __f) {
     __f(__first, __last);
     return __empty{};
   }
 
   template <class _Index, class _UnaryOp, class _Tp, class _BinaryOp, class _Reduce>
   _LIBCPP_HIDE_FROM_ABI static optional<_Tp>
-  __parallel_transform_reduce(_Index __first, _Index __last, _UnaryOp, _Tp __init, _BinaryOp, _Reduce __reduce) {
+  __transform_reduce(_Index __first, _Index __last, _UnaryOp, _Tp __init, _BinaryOp, _Reduce __reduce) {
     return __reduce(std::move(__first), std::move(__last), std::move(__init));
   }
 
   template <class _RandomAccessIterator, class _Compare, class _LeafSort>
-  _LIBCPP_HIDE_FROM_ABI static optional<__empty> __parallel_stable_sort(
-      _RandomAccessIterator __first, _RandomAccessIterator __last, _Compare __comp, _LeafSort __leaf_sort) {
+  _LIBCPP_HIDE_FROM_ABI static optional<__empty>
+  __stable_sort(_RandomAccessIterator __first, _RandomAccessIterator __last, _Compare __comp, _LeafSort __leaf_sort) {
     __leaf_sort(__first, __last, __comp);
     return __empty{};
   }
@@ -63,14 +63,14 @@ struct __cpu_traits<__std_thread_backend_tag> {
             class _RandomAccessIterator3,
             class _Compare,
             class _LeafMerge>
-  _LIBCPP_HIDE_FROM_ABI static optional<__empty> __parallel_merge(
-      _RandomAccessIterator1 __first1,
-      _RandomAccessIterator1 __last1,
-      _RandomAccessIterator2 __first2,
-      _RandomAccessIterator2 __last2,
-      _RandomAccessIterator3 __outit,
-      _Compare __comp,
-      _LeafMerge __leaf_merge) {
+  _LIBCPP_HIDE_FROM_ABI static optional<__empty>
+  __merge(_RandomAccessIterator1 __first1,
+          _RandomAccessIterator1 __last1,
+          _RandomAccessIterator2 __first2,
+          _RandomAccessIterator2 __last2,
+          _RandomAccessIterator3 __outit,
+          _Compare __comp,
+          _LeafMerge __leaf_merge) {
     __leaf_merge(__first1, __last1, __first2, __last2, __outit, __comp);
     return __empty{};
   }
diff --git a/libcxx/include/__algorithm/pstl_backends/cpu_backends/transform.h b/libcxx/include/__algorithm/pstl_backends/cpu_backends/transform.h
index d4c383997a67..4b9b29686683 100644
--- a/libcxx/include/__algorithm/pstl_backends/cpu_backends/transform.h
+++ b/libcxx/include/__algorithm/pstl_backends/cpu_backends/transform.h
@@ -50,7 +50,7 @@ _LIBCPP_HIDE_FROM_ABI optional<_ForwardOutIterator> __pstl_transform(
   if constexpr (__is_parallel_execution_policy_v<_ExecutionPolicy> &&
                 __has_random_access_iterator_category_or_concept<_ForwardIterator>::value &&
                 __has_random_access_iterator_category_or_concept<_ForwardOutIterator>::value) {
-    __pstl::__cpu_traits<__cpu_backend_tag>::__parallel_for(
+    __pstl::__cpu_traits<__cpu_backend_tag>::__for_each(
         __first, __last, [__op, __first, __result](_ForwardIterator __brick_first, _ForwardIterator __brick_last) {
           auto __res = std::__pstl_transform<__remove_parallel_policy_t<_ExecutionPolicy>>(
               __cpu_backend_tag{}, __brick_first, __brick_last, __result + (__brick_first - __first), __op);
@@ -98,7 +98,7 @@ _LIBCPP_HIDE_FROM_ABI optional<_ForwardOutIterator> __pstl_transform(
                 __has_random_access_iterator_category_or_concept<_ForwardIterator1>::value &&
                 __has_random_access_iterator_category_or_concept<_ForwardIterator2>::value &&
                 __has_random_access_iterator_category_or_concept<_ForwardOutIterator>::value) {
-    auto __res = __pstl::__cpu_traits<__cpu_backend_tag>::__parallel_for(
+    auto __res = __pstl::__cpu_traits<__cpu_backend_tag>::__for_each(
         __first1,
         __last1,
         [__op, __first1, __first2, __result](_ForwardIterator1 __brick_first, _ForwardIterator1 __brick_last) {
diff --git a/libcxx/include/__algorithm/pstl_backends/cpu_backends/transform_reduce.h b/libcxx/include/__algorithm/pstl_backends/cpu_backends/transform_reduce.h
index 956c7d6a88ce..c074eea9861c 100644
--- a/libcxx/include/__algorithm/pstl_backends/cpu_backends/transform_reduce.h
+++ b/libcxx/include/__algorithm/pstl_backends/cpu_backends/transform_reduce.h
@@ -120,7 +120,7 @@ _LIBCPP_HIDE_FROM_ABI optional<_Tp> __pstl_transform_reduce(
   if constexpr (__is_parallel_execution_policy_v<_ExecutionPolicy> &&
                 __has_random_access_iterator_category_or_concept<_ForwardIterator1>::value &&
                 __has_random_access_iterator_category_or_concept<_ForwardIterator2>::value) {
-    return __pstl::__cpu_traits<__cpu_backend_tag>::__parallel_transform_reduce(
+    return __pstl::__cpu_traits<__cpu_backend_tag>::__transform_reduce(
         __first1,
         std::move(__last1),
         [__first1, __first2, __transform](_ForwardIterator1 __iter) {
@@ -167,7 +167,7 @@ _LIBCPP_HIDE_FROM_ABI optional<_Tp> __pstl_transform_reduce(
     _UnaryOperation __transform) {
   if constexpr (__is_parallel_execution_policy_v<_ExecutionPolicy> &&
                 __has_random_access_iterator_category_or_concept<_ForwardIterator>::value) {
-    return __pstl::__cpu_traits<__cpu_backend_tag>::__parallel_transform_reduce(
+    return __pstl::__cpu_traits<__cpu_backend_tag>::__transform_reduce(
         std::move(__first),
         std::move(__last),
         [__transform](_ForwardIterator __iter) { return __transform(*__iter); },
diff --git a/libcxx/include/__pstl/cpu_algos/cpu_traits.h b/libcxx/include/__pstl/cpu_algos/cpu_traits.h
index 2f0db46e9be8..0483d6918fd0 100644
--- a/libcxx/include/__pstl/cpu_algos/cpu_traits.h
+++ b/libcxx/include/__pstl/cpu_algos/cpu_traits.h
@@ -32,31 +32,30 @@ namespace __pstl {
 // ================
 //
 //  template <class _RandomAccessIterator, class _Functor>
-//  optional<__empty> __parallel_for(_RandomAccessIterator __first, _RandomAccessIterator __last, _Functor __func);
+//  optional<__empty> __for_each(_RandomAccessIterator __first, _RandomAccessIterator __last, _Functor __func);
 //    - __func must take a subrange of [__first, __last) that should be executed in serial
 //
 //  template <class _Iterator, class _UnaryOp, class _Tp, class _BinaryOp, class _Reduction>
-//  optional<_Tp> __parallel_transform_reduce(_Iterator __first, _Iterator __last, _UnaryOp, _Tp __init, _BinaryOp,
-//  _Reduction);
+//  optional<_Tp> __transform_reduce(_Iterator __first, _Iterator __last, _UnaryOp, _Tp __init, _BinaryOp, _Reduction);
 //
 //  template <class _RandomAccessIterator1,
 //            class _RandomAccessIterator2,
 //            class _RandomAccessIterator3,
 //            class _Compare,
 //            class _LeafMerge>
-//  optional<_RandomAccessIterator3> __parallel_merge(_RandomAccessIterator1 __first1,
-//                                                    _RandomAccessIterator1 __last1,
-//                                                    _RandomAccessIterator2 __first2,
-//                                                    _RandomAccessIterator2 __last2,
-//                                                    _RandomAccessIterator3 __outit,
-//                                                    _Compare __comp,
-//                                                    _LeafMerge __leaf_merge);
+//  optional<_RandomAccessIterator3> __merge(_RandomAccessIterator1 __first1,
+//                                           _RandomAccessIterator1 __last1,
+//                                           _RandomAccessIterator2 __first2,
+//                                           _RandomAccessIterator2 __last2,
+//                                           _RandomAccessIterator3 __outit,
+//                                           _Compare __comp,
+//                                           _LeafMerge __leaf_merge);
 //
 //  template <class _RandomAccessIterator, class _Comp, class _LeafSort>
-//  optional<__empty> __parallel_stable_sort(_RandomAccessIterator __first,
-//                                           _RandomAccessIterator __last,
-//                                           _Comp __comp,
-//                                           _LeafSort __leaf_sort);
+//  optional<__empty> __stable_sort(_RandomAccessIterator __first,
+//                                  _RandomAccessIterator __last,
+//                                  _Comp __comp,
+//                                  _LeafSort __leaf_sort);
 //
 //   void __cancel_execution();
 //      Cancel the execution of other jobs - they aren't needed anymore. This is not a binding request,
diff --git a/lld/COFF/Writer.cpp b/lld/COFF/Writer.cpp
index 9c20bbb83d86..7269d156752d 100644
--- a/lld/COFF/Writer.cpp
+++ b/lld/COFF/Writer.cpp
@@ -2072,8 +2072,16 @@ void Writer::createRuntimePseudoRelocs() {
     return;
   }
 
-  if (!rels.empty())
+  if (!rels.empty()) {
     log("Writing " + Twine(rels.size()) + " runtime pseudo relocations");
+    const char *symbolName = "_pei386_runtime_relocator";
+    Symbol *relocator = ctx.symtab.findUnderscore(symbolName);
+    if (!relocator)
+      error("output image has runtime pseudo relocations, but the function " +
+            Twine(symbolName) +
+            " is missing; it is needed for fixing the relocations at runtime");
+  }
+
   PseudoRelocTableChunk *table = make<PseudoRelocTableChunk>(rels);
   rdataSec->addChunk(table);
   EmptyChunk *endOfList = make<EmptyChunk>();
diff --git a/lld/ELF/InputSection.cpp b/lld/ELF/InputSection.cpp
index c8350652e65a..fa48552b8f7a 100644
--- a/lld/ELF/InputSection.cpp
+++ b/lld/ELF/InputSection.cpp
@@ -464,7 +464,11 @@ void InputSection::copyRelocations(uint8_t *buf,
         addend += sec->getFile<ELFT>()->mipsGp0;
       }
 
-      if (RelTy::IsRela)
+      if (config->emachine == EM_LOONGARCH && type == R_LARCH_ALIGN)
+        // LoongArch psABI v2.30, the R_LARCH_ALIGN requires symbol index.
+        // If it use the section symbol, the addend should not be changed.
+        p->r_addend = addend;
+      else if (RelTy::IsRela)
         p->r_addend = sym.getVA(addend) - section->getOutputSection()->addr;
       // For SHF_ALLOC sections relocated by REL, append a relocation to
       // sec->relocations so that relocateAlloc transitively called by
diff --git a/lld/test/COFF/autoimport-arm-data.s b/lld/test/COFF/autoimport-arm-data.s
index 74604aa5c823..82c66f0989d4 100644
--- a/lld/test/COFF/autoimport-arm-data.s
+++ b/lld/test/COFF/autoimport-arm-data.s
@@ -34,6 +34,9 @@
     .thumb
 main:
     bx lr
+    .global _pei386_runtime_relocator
+_pei386_runtime_relocator:
+    bx lr
     .data
 ptr:
     .long variable
diff --git a/lld/test/COFF/autoimport-arm64-data.s b/lld/test/COFF/autoimport-arm64-data.s
index fa3654be3a71..b49bd4f89c97 100644
--- a/lld/test/COFF/autoimport-arm64-data.s
+++ b/lld/test/COFF/autoimport-arm64-data.s
@@ -34,6 +34,9 @@
     .text
 main:
     ret
+    .global _pei386_runtime_relocator
+_pei386_runtime_relocator:
+    ret
     .data
 ptr:
     .quad variable
diff --git a/lld/test/COFF/autoimport-gnu-implib.s b/lld/test/COFF/autoimport-gnu-implib.s
index d7d4ed626e83..d9dc9d7a38fd 100644
--- a/lld/test/COFF/autoimport-gnu-implib.s
+++ b/lld/test/COFF/autoimport-gnu-implib.s
@@ -28,4 +28,7 @@
 main:
     movl data(%rip), %eax
     ret
+    .global _pei386_runtime_relocator
+_pei386_runtime_relocator:
+    ret
     .data
diff --git a/lld/test/COFF/autoimport-handler-func.s b/lld/test/COFF/autoimport-handler-func.s
new file mode 100644
index 000000000000..02d040bfa274
--- /dev/null
+++ b/lld/test/COFF/autoimport-handler-func.s
@@ -0,0 +1,36 @@
+# REQUIRES: x86
+# RUN: split-file %s %t.dir
+
+# RUN: llvm-dlltool -m i386:x86-64 -d %t.dir/lib.def -D lib.dll -l %t.dir/lib.lib
+
+# RUN: llvm-mc -triple=x86_64-windows-gnu %t.dir/main.s -filetype=obj -o %t.dir/main.obj
+# RUN: llvm-mc -triple=x86_64-windows-gnu %t.dir/func.s -filetype=obj -o %t.dir/func.obj
+# RUN: env LLD_IN_TEST=1 not lld-link -lldmingw -out:%t.dir/main.exe -entry:main %t.dir/main.obj %t.dir/lib.lib 2>&1 | FileCheck %s --check-prefix=ERR
+
+# RUN: lld-link -lldmingw -out:%t.dir/main.exe -entry:main %t.dir/main.obj %t.dir/func.obj %t.dir/lib.lib 2>&1 | FileCheck %s --check-prefix=NOERR --allow-empty
+
+# ERR: error: output image has runtime pseudo relocations, but the function _pei386_runtime_relocator is missing; it is needed for fixing the relocations at runtime
+
+# NOERR-NOT: error
+
+#--- main.s
+    .global main
+    .text
+main:
+    ret
+
+    .data
+    .long 1
+    .quad variable
+    .long 2
+
+#--- func.s
+    .global _pei386_runtime_relocator
+    .text
+_pei386_runtime_relocator:
+    ret
+
+#--- lib.def
+EXPORTS
+variable DATA
+
diff --git a/lld/test/COFF/autoimport-warn.s b/lld/test/COFF/autoimport-warn.s
index 9c363ed30f24..eead0fed861f 100644
--- a/lld/test/COFF/autoimport-warn.s
+++ b/lld/test/COFF/autoimport-warn.s
@@ -18,6 +18,9 @@ main:
     movl variable2(%rip), %ecx
     addl %ecx, %eax
     ret
+    .global _pei386_runtime_relocator
+_pei386_runtime_relocator:
+    ret
 
     .section .rdata$.refptr.variable1,"dr",discard,.refptr.variable1
     .global .refptr.variable1
diff --git a/lld/test/COFF/autoimport-x86.s b/lld/test/COFF/autoimport-x86.s
index fa36f10e9ca9..5d7c9c2c3fa5 100644
--- a/lld/test/COFF/autoimport-x86.s
+++ b/lld/test/COFF/autoimport-x86.s
@@ -56,6 +56,9 @@
 main:
     movl variable(%rip), %eax
     ret
+    .global _pei386_runtime_relocator
+_pei386_runtime_relocator:
+    ret
     .data
 ptr:
     .quad variable
diff --git a/lld/test/ELF/loongarch-relax-align-ldr.s b/lld/test/ELF/loongarch-relax-align-ldr.s
new file mode 100644
index 000000000000..6534dc906cfd
--- /dev/null
+++ b/lld/test/ELF/loongarch-relax-align-ldr.s
@@ -0,0 +1,28 @@
+# REQUIRES: loongarch
+## Test `ld -r` not changes the addend of R_LARCH_ALIGN.
+
+# RUN: llvm-mc --filetype=obj --triple=loongarch64 --mattr=+relax %s -o %t.64.o
+# RUN: ld.lld -r %t.64.o %t.64.o -o %t.64.r
+# RUN: llvm-objdump -dr --no-show-raw-insn %t.64.r | FileCheck %s
+
+# CHECK:      <.text>:
+# CHECK-NEXT:   break 1
+# CHECK-NEXT:   nop
+# CHECK-NEXT:   {{0*}}04:  R_LARCH_ALIGN        .text+0x804
+# CHECK-NEXT:   nop
+# CHECK-NEXT:   nop
+# CHECK-NEXT:   break 2
+# CHECK-NEXT:   break 0
+# CHECK-NEXT:   break 0
+# CHECK-NEXT:   break 0
+# CHECK-NEXT:   break 1
+# CHECK-NEXT:   nop
+# CHECK-NEXT:   {{0*}}24:  R_LARCH_ALIGN        .text+0x804
+# CHECK-NEXT:   nop
+# CHECK-NEXT:   nop
+# CHECK-NEXT:   break 2
+
+.text
+break 1
+.p2align 4, , 8
+break 2
diff --git a/lld/test/ELF/loongarch-relax-emit-relocs.s b/lld/test/ELF/loongarch-relax-emit-relocs.s
index 581fce8c95ca..9007f8fcc114 100644
--- a/lld/test/ELF/loongarch-relax-emit-relocs.s
+++ b/lld/test/ELF/loongarch-relax-emit-relocs.s
@@ -25,7 +25,7 @@
 # CHECK-NEXT:     R_LARCH_PCALA_LO12 _start
 # CHECK-NEXT:     R_LARCH_RELAX *ABS*
 # CHECK-NEXT:   nop
-# CHECK-NEXT:     R_LARCH_ALIGN .Lla-relax-align0+0x4
+# CHECK-NEXT:     R_LARCH_ALIGN .text+0x4
 # CHECK-NEXT:   nop
 # CHECK-NEXT:   ret
 
@@ -37,11 +37,12 @@
 # CHECKR-NEXT:     R_LARCH_PCALA_LO12 _start
 # CHECKR-NEXT:     R_LARCH_RELAX *ABS*
 # CHECKR-NEXT:   nop
-# CHECKR-NEXT:     R_LARCH_ALIGN .Lla-relax-align0+0x4
+# CHECKR-NEXT:     R_LARCH_ALIGN .text+0x4
 # CHECKR-NEXT:   nop
 # CHECKR-NEXT:   nop
 # CHECKR-NEXT:   ret
 
+.text
 .global _start
 _start:
   la.pcrel $a0, _start
diff --git a/llvm/include/llvm/CodeGen/GlobalISel/Utils.h b/llvm/include/llvm/CodeGen/GlobalISel/Utils.h
index 807cec3c177d..c4174cee5e10 100644
--- a/llvm/include/llvm/CodeGen/GlobalISel/Utils.h
+++ b/llvm/include/llvm/CodeGen/GlobalISel/Utils.h
@@ -555,5 +555,9 @@ void eraseInstr(MachineInstr &MI, MachineRegisterInfo &MRI,
 /// debug users of \p MI by writing the effect of \p MI in a DIExpression.
 void salvageDebugInfo(const MachineRegisterInfo &MRI, MachineInstr &MI);
 
+/// Returns whether opcode \p Opc is a pre-isel generic floating-point opcode,
+/// having only floating-point operands.
+bool isPreISelGenericFloatingPointOpcode(unsigned Opc);
+
 } // End namespace llvm.
 #endif
diff --git a/llvm/lib/Analysis/Lint.cpp b/llvm/lib/Analysis/Lint.cpp
index 0694c2995dfc..1ab856ac8830 100644
--- a/llvm/lib/Analysis/Lint.cpp
+++ b/llvm/lib/Analysis/Lint.cpp
@@ -350,10 +350,7 @@ void Lint::visitCallBase(CallBase &I) {
     }
 
     case Intrinsic::vastart:
-      Check(I.getParent()->getParent()->isVarArg(),
-            "Undefined behavior: va_start called in a non-varargs function",
-            &I);
-
+      // vastart in non-varargs function is rejected by the verifier
       visitMemoryReference(I, MemoryLocation::getForArgument(&I, 0, TLI),
                            std::nullopt, nullptr, MemRef::Read | MemRef::Write);
       break;
diff --git a/llvm/lib/CodeGen/GlobalISel/Utils.cpp b/llvm/lib/CodeGen/GlobalISel/Utils.cpp
index c3bc3203b636..ae43e9ccf611 100644
--- a/llvm/lib/CodeGen/GlobalISel/Utils.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/Utils.cpp
@@ -1665,3 +1665,47 @@ void llvm::salvageDebugInfo(const MachineRegisterInfo &MRI, MachineInstr &MI) {
     }
   }
 }
+
+bool llvm::isPreISelGenericFloatingPointOpcode(unsigned Opc) {
+  switch (Opc) {
+  case TargetOpcode::G_FABS:
+  case TargetOpcode::G_FADD:
+  case TargetOpcode::G_FCANONICALIZE:
+  case TargetOpcode::G_FCEIL:
+  case TargetOpcode::G_FCONSTANT:
+  case TargetOpcode::G_FCOPYSIGN:
+  case TargetOpcode::G_FCOS:
+  case TargetOpcode::G_FDIV:
+  case TargetOpcode::G_FEXP2:
+  case TargetOpcode::G_FEXP:
+  case TargetOpcode::G_FFLOOR:
+  case TargetOpcode::G_FLOG10:
+  case TargetOpcode::G_FLOG2:
+  case TargetOpcode::G_FLOG:
+  case TargetOpcode::G_FMA:
+  case TargetOpcode::G_FMAD:
+  case TargetOpcode::G_FMAXIMUM:
+  case TargetOpcode::G_FMAXNUM:
+  case TargetOpcode::G_FMAXNUM_IEEE:
+  case TargetOpcode::G_FMINIMUM:
+  case TargetOpcode::G_FMINNUM:
+  case TargetOpcode::G_FMINNUM_IEEE:
+  case TargetOpcode::G_FMUL:
+  case TargetOpcode::G_FNEARBYINT:
+  case TargetOpcode::G_FNEG:
+  case TargetOpcode::G_FPEXT:
+  case TargetOpcode::G_FPOW:
+  case TargetOpcode::G_FPTRUNC:
+  case TargetOpcode::G_FREM:
+  case TargetOpcode::G_FRINT:
+  case TargetOpcode::G_FSIN:
+  case TargetOpcode::G_FSQRT:
+  case TargetOpcode::G_FSUB:
+  case TargetOpcode::G_INTRINSIC_ROUND:
+  case TargetOpcode::G_INTRINSIC_ROUNDEVEN:
+  case TargetOpcode::G_INTRINSIC_TRUNC:
+    return true;
+  default:
+    return false;
+  }
+}
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 0fa0bf2609bb..c36b1cc9039c 100644
--- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -24467,6 +24467,22 @@ SDValue DAGCombiner::visitEXTRACT_SUBVECTOR(SDNode *N) {
       if (!LegalOperations || TLI.isOperationLegal(ISD::SPLAT_VECTOR, NVT))
         return DAG.getSplatVector(NVT, DL, V.getOperand(0));
 
+  // extract_subvector(insert_subvector(x,y,c1),c2)
+  //  --> extract_subvector(y,c2-c1)
+  // iff we're just extracting from the inserted subvector.
+  if (V.getOpcode() == ISD::INSERT_SUBVECTOR) {
+    SDValue InsSub = V.getOperand(1);
+    EVT InsSubVT = InsSub.getValueType();
+    unsigned NumInsElts = InsSubVT.getVectorMinNumElements();
+    unsigned InsIdx = V.getConstantOperandVal(2);
+    unsigned NumSubElts = NVT.getVectorMinNumElements();
+    if (InsIdx <= ExtIdx && (ExtIdx + NumSubElts) <= (InsIdx + NumInsElts) &&
+        TLI.isExtractSubvectorCheap(NVT, InsSubVT, ExtIdx - InsIdx) &&
+        InsSubVT.isFixedLengthVector() && NVT.isFixedLengthVector())
+      return DAG.getNode(ISD::EXTRACT_SUBVECTOR, DL, NVT, InsSub,
+                         DAG.getVectorIdxConstant(ExtIdx - InsIdx, DL));
+  }
+
   // Try to move vector bitcast after extract_subv by scaling extraction index:
   // extract_subv (bitcast X), Index --> bitcast (extract_subv X, Index')
   if (V.getOpcode() == ISD::BITCAST &&
diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp
index 57a3f6a65e00..7a9cfdf5c3fd 100644
--- a/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp
@@ -1159,8 +1159,14 @@ void VectorLegalizer::Expand(SDNode *Node, SmallVectorImpl<SDValue> &Results) {
   }
 
   SDValue Unrolled = DAG.UnrollVectorOp(Node);
-  for (unsigned I = 0, E = Unrolled->getNumValues(); I != E; ++I)
-    Results.push_back(Unrolled.getValue(I));
+  if (Node->getNumValues() == 1) {
+    Results.push_back(Unrolled);
+  } else {
+    assert(Node->getNumValues() == Unrolled->getNumValues() &&
+      "VectorLegalizer Expand returned wrong number of results!");
+    for (unsigned I = 0, E = Unrolled->getNumValues(); I != E; ++I)
+      Results.push_back(Unrolled.getValue(I));
+  }
 }
 
 SDValue VectorLegalizer::ExpandSELECT(SDNode *Node) {
diff --git a/llvm/lib/CodeGen/TargetLoweringBase.cpp b/llvm/lib/CodeGen/TargetLoweringBase.cpp
index f64ded4f2cf9..6e7b67ded23c 100644
--- a/llvm/lib/CodeGen/TargetLoweringBase.cpp
+++ b/llvm/lib/CodeGen/TargetLoweringBase.cpp
@@ -1809,8 +1809,16 @@ void llvm::GetReturnInfo(CallingConv::ID CC, Type *ReturnType,
     else if (attr.hasRetAttr(Attribute::ZExt))
       Flags.setZExt();
 
-    for (unsigned i = 0; i < NumParts; ++i)
-      Outs.push_back(ISD::OutputArg(Flags, PartVT, VT, /*isfixed=*/true, 0, 0));
+    for (unsigned i = 0; i < NumParts; ++i) {
+      ISD::ArgFlagsTy OutFlags = Flags;
+      if (NumParts > 1 && i == 0)
+        OutFlags.setSplit();
+      else if (i == NumParts - 1 && i != 0)
+        OutFlags.setSplitEnd();
+
+      Outs.push_back(
+          ISD::OutputArg(OutFlags, PartVT, VT, /*isfixed=*/true, 0, 0));
+    }
   }
 }
 
diff --git a/llvm/lib/IR/AutoUpgrade.cpp b/llvm/lib/IR/AutoUpgrade.cpp
index 2c480fb76ee4..634b2dd5119e 100644
--- a/llvm/lib/IR/AutoUpgrade.cpp
+++ b/llvm/lib/IR/AutoUpgrade.cpp
@@ -5341,10 +5341,11 @@ MDNode *llvm::upgradeInstructionLoopAttachment(MDNode &N) {
 
 std::string llvm::UpgradeDataLayoutString(StringRef DL, StringRef TT) {
   Triple T(TT);
-  // The only data layout upgrades needed for pre-GCN are setting the address
-  // space of globals to 1.
-  if (T.isAMDGPU() && !T.isAMDGCN() && !DL.contains("-G") &&
-      !DL.starts_with("G")) {
+  // The only data layout upgrades needed for pre-GCN, SPIR or SPIRV are setting
+  // the address space of globals to 1. This does not apply to SPIRV Logical.
+  if (((T.isAMDGPU() && !T.isAMDGCN()) ||
+       (T.isSPIR() || (T.isSPIRV() && !T.isSPIRVLogical()))) &&
+      !DL.contains("-G") && !DL.starts_with("G")) {
     return DL.empty() ? std::string("G1") : (DL + "-G1").str();
   }
 
diff --git a/llvm/lib/IR/Verifier.cpp b/llvm/lib/IR/Verifier.cpp
index 516d4a051556..4cd61e6e531b 100644
--- a/llvm/lib/IR/Verifier.cpp
+++ b/llvm/lib/IR/Verifier.cpp
@@ -5798,6 +5798,11 @@ void Verifier::visitIntrinsicCall(Intrinsic::ID ID, CallBase &Call) {
 
     break;
   }
+  case Intrinsic::vastart: {
+    Check(Call.getFunction()->isVarArg(),
+          "va_start called in a non-varargs function");
+    break;
+  }
   case Intrinsic::vector_reduce_and:
   case Intrinsic::vector_reduce_or:
   case Intrinsic::vector_reduce_xor:
diff --git a/llvm/lib/Target/AArch64/GISel/AArch64RegisterBankInfo.cpp b/llvm/lib/Target/AArch64/GISel/AArch64RegisterBankInfo.cpp
index d39de770eaf1..d5c4ce1888e7 100644
--- a/llvm/lib/Target/AArch64/GISel/AArch64RegisterBankInfo.cpp
+++ b/llvm/lib/Target/AArch64/GISel/AArch64RegisterBankInfo.cpp
@@ -424,43 +424,6 @@ void AArch64RegisterBankInfo::applyMappingImpl(
   }
 }
 
-/// Returns whether opcode \p Opc is a pre-isel generic floating-point opcode,
-/// having only floating-point operands.
-static bool isPreISelGenericFloatingPointOpcode(unsigned Opc) {
-  switch (Opc) {
-  case TargetOpcode::G_FADD:
-  case TargetOpcode::G_FSUB:
-  case TargetOpcode::G_FMUL:
-  case TargetOpcode::G_FMA:
-  case TargetOpcode::G_FDIV:
-  case TargetOpcode::G_FCONSTANT:
-  case TargetOpcode::G_FPEXT:
-  case TargetOpcode::G_FPTRUNC:
-  case TargetOpcode::G_FCEIL:
-  case TargetOpcode::G_FFLOOR:
-  case TargetOpcode::G_FNEARBYINT:
-  case TargetOpcode::G_FNEG:
-  case TargetOpcode::G_FCOS:
-  case TargetOpcode::G_FSIN:
-  case TargetOpcode::G_FLOG10:
-  case TargetOpcode::G_FLOG:
-  case TargetOpcode::G_FLOG2:
-  case TargetOpcode::G_FSQRT:
-  case TargetOpcode::G_FABS:
-  case TargetOpcode::G_FEXP:
-  case TargetOpcode::G_FRINT:
-  case TargetOpcode::G_INTRINSIC_TRUNC:
-  case TargetOpcode::G_INTRINSIC_ROUND:
-  case TargetOpcode::G_INTRINSIC_ROUNDEVEN:
-  case TargetOpcode::G_FMAXNUM:
-  case TargetOpcode::G_FMINNUM:
-  case TargetOpcode::G_FMAXIMUM:
-  case TargetOpcode::G_FMINIMUM:
-    return true;
-  }
-  return false;
-}
-
 const RegisterBankInfo::InstructionMapping &
 AArch64RegisterBankInfo::getSameKindOfOperandsMapping(
     const MachineInstr &MI) const {
diff --git a/llvm/lib/Target/AMDGPU/GCNCreateVOPD.cpp b/llvm/lib/Target/AMDGPU/GCNCreateVOPD.cpp
index 05e10a95b157..1dda1b89b2d3 100644
--- a/llvm/lib/Target/AMDGPU/GCNCreateVOPD.cpp
+++ b/llvm/lib/Target/AMDGPU/GCNCreateVOPD.cpp
@@ -101,6 +101,7 @@ public:
       }
     }
 
+    SII->fixImplicitOperands(*VOPDInst);
     for (auto CompIdx : VOPD::COMPONENTS)
       VOPDInst.copyImplicitOps(*MI[CompIdx]);
 
diff --git a/llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp b/llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp
index 245731ad5fc7..acb54fd10b90 100644
--- a/llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp
+++ b/llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp
@@ -612,13 +612,6 @@ BitVector SIRegisterInfo::getReservedRegs(const MachineFunction &MF) const {
   // Reserve null register - it shall never be allocated
   reserveRegisterTuples(Reserved, AMDGPU::SGPR_NULL64);
 
-  // Disallow vcc_hi allocation in wave32. It may be allocated but most likely
-  // will result in bugs.
-  if (isWave32) {
-    Reserved.set(AMDGPU::VCC);
-    Reserved.set(AMDGPU::VCC_HI);
-  }
-
   // Reserve SGPRs.
   //
   unsigned MaxNumSGPRs = ST.getMaxNumSGPRs(MF);
diff --git a/llvm/lib/Target/LoongArch/MCTargetDesc/LoongArchAsmBackend.cpp b/llvm/lib/Target/LoongArch/MCTargetDesc/LoongArchAsmBackend.cpp
index de492f2b1f0a..98f5014a34b1 100644
--- a/llvm/lib/Target/LoongArch/MCTargetDesc/LoongArchAsmBackend.cpp
+++ b/llvm/lib/Target/LoongArch/MCTargetDesc/LoongArchAsmBackend.cpp
@@ -226,11 +226,8 @@ bool LoongArchAsmBackend::shouldInsertFixupForCodeAlign(
       MCFixup::create(0, Dummy, MCFixupKind(LoongArch::fixup_loongarch_align));
   const MCSymbolRefExpr *MCSym = getSecToAlignSym()[Sec];
   if (MCSym == nullptr) {
-    // Create a symbol and make the value of symbol is zero.
-    MCSymbol *Sym = Ctx.createNamedTempSymbol("la-relax-align");
-    Sym->setFragment(&*Sec->getBeginSymbol()->getFragment());
-    Asm.registerSymbol(*Sym);
-    MCSym = MCSymbolRefExpr::create(Sym, Ctx);
+    // Use section symbol directly.
+    MCSym = MCSymbolRefExpr::create(Sec->getBeginSymbol(), Ctx);
     getSecToAlignSym()[Sec] = MCSym;
   }
 
diff --git a/llvm/lib/Target/Mips/MipsRegisterBankInfo.cpp b/llvm/lib/Target/Mips/MipsRegisterBankInfo.cpp
index 6af1fd8c88e5..62b58cba9f24 100644
--- a/llvm/lib/Target/Mips/MipsRegisterBankInfo.cpp
+++ b/llvm/lib/Target/Mips/MipsRegisterBankInfo.cpp
@@ -104,26 +104,6 @@ MipsRegisterBankInfo::getRegBankFromRegClass(const TargetRegisterClass &RC,
   }
 }
 
-// Instructions where all register operands are floating point.
-static bool isFloatingPointOpcode(unsigned Opc) {
-  switch (Opc) {
-  case TargetOpcode::G_FCONSTANT:
-  case TargetOpcode::G_FADD:
-  case TargetOpcode::G_FSUB:
-  case TargetOpcode::G_FMUL:
-  case TargetOpcode::G_FDIV:
-  case TargetOpcode::G_FABS:
-  case TargetOpcode::G_FSQRT:
-  case TargetOpcode::G_FCEIL:
-  case TargetOpcode::G_FFLOOR:
-  case TargetOpcode::G_FPEXT:
-  case TargetOpcode::G_FPTRUNC:
-    return true;
-  default:
-    return false;
-  }
-}
-
 // Instructions where use operands are floating point registers.
 // Def operands are general purpose.
 static bool isFloatingPointOpcodeUse(unsigned Opc) {
@@ -133,7 +113,7 @@ static bool isFloatingPointOpcodeUse(unsigned Opc) {
   case TargetOpcode::G_FCMP:
     return true;
   default:
-    return isFloatingPointOpcode(Opc);
+    return isPreISelGenericFloatingPointOpcode(Opc);
   }
 }
 
@@ -145,7 +125,7 @@ static bool isFloatingPointOpcodeDef(unsigned Opc) {
   case TargetOpcode::G_UITOFP:
     return true;
   default:
-    return isFloatingPointOpcode(Opc);
+    return isPreISelGenericFloatingPointOpcode(Opc);
   }
 }
 
diff --git a/llvm/lib/Target/PowerPC/GISel/PPCRegisterBankInfo.cpp b/llvm/lib/Target/PowerPC/GISel/PPCRegisterBankInfo.cpp
index 6aeef145e307..125a49de7b27 100644
--- a/llvm/lib/Target/PowerPC/GISel/PPCRegisterBankInfo.cpp
+++ b/llvm/lib/Target/PowerPC/GISel/PPCRegisterBankInfo.cpp
@@ -13,6 +13,7 @@
 #include "PPCRegisterBankInfo.h"
 #include "PPCRegisterInfo.h"
 #include "llvm/CodeGen/GlobalISel/GenericMachineInstrs.h"
+#include "llvm/CodeGen/GlobalISel/Utils.h"
 #include "llvm/CodeGen/MachineFunction.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
 #include "llvm/Support/Debug.h"
@@ -239,44 +240,6 @@ PPCRegisterBankInfo::getInstrMapping(const MachineInstr &MI) const {
   return getInstructionMapping(MappingID, Cost, OperandsMapping, NumOperands);
 }
 
-/// Returns whether opcode \p Opc is a pre-isel generic floating-point opcode,
-/// having only floating-point operands.
-/// FIXME: this is copied from target AArch64. Needs some code refactor here to
-/// put this function in GlobalISel/Utils.cpp.
-static bool isPreISelGenericFloatingPointOpcode(unsigned Opc) {
-  switch (Opc) {
-  case TargetOpcode::G_FADD:
-  case TargetOpcode::G_FSUB:
-  case TargetOpcode::G_FMUL:
-  case TargetOpcode::G_FMA:
-  case TargetOpcode::G_FDIV:
-  case TargetOpcode::G_FCONSTANT:
-  case TargetOpcode::G_FPEXT:
-  case TargetOpcode::G_FPTRUNC:
-  case TargetOpcode::G_FCEIL:
-  case TargetOpcode::G_FFLOOR:
-  case TargetOpcode::G_FNEARBYINT:
-  case TargetOpcode::G_FNEG:
-  case TargetOpcode::G_FCOS:
-  case TargetOpcode::G_FSIN:
-  case TargetOpcode::G_FLOG10:
-  case TargetOpcode::G_FLOG:
-  case TargetOpcode::G_FLOG2:
-  case TargetOpcode::G_FSQRT:
-  case TargetOpcode::G_FABS:
-  case TargetOpcode::G_FEXP:
-  case TargetOpcode::G_FRINT:
-  case TargetOpcode::G_INTRINSIC_TRUNC:
-  case TargetOpcode::G_INTRINSIC_ROUND:
-  case TargetOpcode::G_FMAXNUM:
-  case TargetOpcode::G_FMINNUM:
-  case TargetOpcode::G_FMAXIMUM:
-  case TargetOpcode::G_FMINIMUM:
-    return true;
-  }
-  return false;
-}
-
 /// \returns true if a given intrinsic \p ID only uses and defines FPRs.
 static bool isFPIntrinsic(unsigned ID) {
   // TODO: Add more intrinsics.
diff --git a/llvm/lib/Target/RISCV/GISel/RISCVCallLowering.cpp b/llvm/lib/Target/RISCV/GISel/RISCVCallLowering.cpp
index 45e19cdea300..c18892ac62f2 100644
--- a/llvm/lib/Target/RISCV/GISel/RISCVCallLowering.cpp
+++ b/llvm/lib/Target/RISCV/GISel/RISCVCallLowering.cpp
@@ -34,14 +34,15 @@ private:
   // Whether this is assigning args for a return.
   bool IsRet;
 
-  // true if assignArg has been called for a mask argument, false otherwise.
-  bool AssignedFirstMaskArg = false;
+  RVVArgDispatcher &RVVDispatcher;
 
 public:
   RISCVOutgoingValueAssigner(
-      RISCVTargetLowering::RISCVCCAssignFn *RISCVAssignFn_, bool IsRet)
+      RISCVTargetLowering::RISCVCCAssignFn *RISCVAssignFn_, bool IsRet,
+      RVVArgDispatcher &RVVDispatcher)
       : CallLowering::OutgoingValueAssigner(nullptr),
-        RISCVAssignFn(RISCVAssignFn_), IsRet(IsRet) {}
+        RISCVAssignFn(RISCVAssignFn_), IsRet(IsRet),
+        RVVDispatcher(RVVDispatcher) {}
 
   bool assignArg(unsigned ValNo, EVT OrigVT, MVT ValVT, MVT LocVT,
                  CCValAssign::LocInfo LocInfo,
@@ -51,16 +52,9 @@ public:
     const DataLayout &DL = MF.getDataLayout();
     const RISCVSubtarget &Subtarget = MF.getSubtarget<RISCVSubtarget>();
 
-    std::optional<unsigned> FirstMaskArgument;
-    if (Subtarget.hasVInstructions() && !AssignedFirstMaskArg &&
-        ValVT.isVector() && ValVT.getVectorElementType() == MVT::i1) {
-      FirstMaskArgument = ValNo;
-      AssignedFirstMaskArg = true;
-    }
-
     if (RISCVAssignFn(DL, Subtarget.getTargetABI(), ValNo, ValVT, LocVT,
                       LocInfo, Flags, State, Info.IsFixed, IsRet, Info.Ty,
-                      *Subtarget.getTargetLowering(), FirstMaskArgument))
+                      *Subtarget.getTargetLowering(), RVVDispatcher))
       return true;
 
     StackSize = State.getStackSize();
@@ -181,14 +175,15 @@ private:
   // Whether this is assigning args from a return.
   bool IsRet;
 
-  // true if assignArg has been called for a mask argument, false otherwise.
-  bool AssignedFirstMaskArg = false;
+  RVVArgDispatcher &RVVDispatcher;
 
 public:
   RISCVIncomingValueAssigner(
-      RISCVTargetLowering::RISCVCCAssignFn *RISCVAssignFn_, bool IsRet)
+      RISCVTargetLowering::RISCVCCAssignFn *RISCVAssignFn_, bool IsRet,
+      RVVArgDispatcher &RVVDispatcher)
       : CallLowering::IncomingValueAssigner(nullptr),
-        RISCVAssignFn(RISCVAssignFn_), IsRet(IsRet) {}
+        RISCVAssignFn(RISCVAssignFn_), IsRet(IsRet),
+        RVVDispatcher(RVVDispatcher) {}
 
   bool assignArg(unsigned ValNo, EVT OrigVT, MVT ValVT, MVT LocVT,
                  CCValAssign::LocInfo LocInfo,
@@ -201,16 +196,9 @@ public:
     if (LocVT.isScalableVector())
       MF.getInfo<RISCVMachineFunctionInfo>()->setIsVectorCall();
 
-    std::optional<unsigned> FirstMaskArgument;
-    if (Subtarget.hasVInstructions() && !AssignedFirstMaskArg &&
-        ValVT.isVector() && ValVT.getVectorElementType() == MVT::i1) {
-      FirstMaskArgument = ValNo;
-      AssignedFirstMaskArg = true;
-    }
-
     if (RISCVAssignFn(DL, Subtarget.getTargetABI(), ValNo, ValVT, LocVT,
                       LocInfo, Flags, State, /*IsFixed=*/true, IsRet, Info.Ty,
-                      *Subtarget.getTargetLowering(), FirstMaskArgument))
+                      *Subtarget.getTargetLowering(), RVVDispatcher))
       return true;
 
     StackSize = State.getStackSize();
@@ -420,9 +408,11 @@ bool RISCVCallLowering::lowerReturnVal(MachineIRBuilder &MIRBuilder,
   SmallVector<ArgInfo, 4> SplitRetInfos;
   splitToValueTypes(OrigRetInfo, SplitRetInfos, DL, CC);
 
+  RVVArgDispatcher Dispatcher{&MF, getTLI<RISCVTargetLowering>(),
+                              ArrayRef(F.getReturnType())};
   RISCVOutgoingValueAssigner Assigner(
       CC == CallingConv::Fast ? RISCV::CC_RISCV_FastCC : RISCV::CC_RISCV,
-      /*IsRet=*/true);
+      /*IsRet=*/true, Dispatcher);
   RISCVOutgoingValueHandler Handler(MIRBuilder, MF.getRegInfo(), Ret);
   return determineAndHandleAssignments(Handler, Assigner, SplitRetInfos,
                                        MIRBuilder, CC, F.isVarArg());
@@ -531,6 +521,7 @@ bool RISCVCallLowering::lowerFormalArguments(MachineIRBuilder &MIRBuilder,
   CallingConv::ID CC = F.getCallingConv();
 
   SmallVector<ArgInfo, 32> SplitArgInfos;
+  SmallVector<Type *, 4> TypeList;
   unsigned Index = 0;
   for (auto &Arg : F.args()) {
     // Construct the ArgInfo object from destination register and argument type.
@@ -542,12 +533,16 @@ bool RISCVCallLowering::lowerFormalArguments(MachineIRBuilder &MIRBuilder,
     // correspondingly and appended to SplitArgInfos.
     splitToValueTypes(AInfo, SplitArgInfos, DL, CC);
 
+    TypeList.push_back(Arg.getType());
+
     ++Index;
   }
 
+  RVVArgDispatcher Dispatcher{&MF, getTLI<RISCVTargetLowering>(),
+                              ArrayRef(TypeList)};
   RISCVIncomingValueAssigner Assigner(
       CC == CallingConv::Fast ? RISCV::CC_RISCV_FastCC : RISCV::CC_RISCV,
-      /*IsRet=*/false);
+      /*IsRet=*/false, Dispatcher);
   RISCVFormalArgHandler Handler(MIRBuilder, MF.getRegInfo());
 
   SmallVector<CCValAssign, 16> ArgLocs;
@@ -585,11 +580,13 @@ bool RISCVCallLowering::lowerCall(MachineIRBuilder &MIRBuilder,
 
   SmallVector<ArgInfo, 32> SplitArgInfos;
   SmallVector<ISD::OutputArg, 8> Outs;
+  SmallVector<Type *, 4> TypeList;
   for (auto &AInfo : Info.OrigArgs) {
     // Handle any required unmerging of split value types from a given VReg into
     // physical registers. ArgInfo objects are constructed correspondingly and
     // appended to SplitArgInfos.
     splitToValueTypes(AInfo, SplitArgInfos, DL, CC);
+    TypeList.push_back(AInfo.Ty);
   }
 
   // TODO: Support tail calls.
@@ -607,9 +604,11 @@ bool RISCVCallLowering::lowerCall(MachineIRBuilder &MIRBuilder,
   const TargetRegisterInfo *TRI = Subtarget.getRegisterInfo();
   Call.addRegMask(TRI->getCallPreservedMask(MF, Info.CallConv));
 
+  RVVArgDispatcher ArgDispatcher{&MF, getTLI<RISCVTargetLowering>(),
+                                 ArrayRef(TypeList)};
   RISCVOutgoingValueAssigner ArgAssigner(
       CC == CallingConv::Fast ? RISCV::CC_RISCV_FastCC : RISCV::CC_RISCV,
-      /*IsRet=*/false);
+      /*IsRet=*/false, ArgDispatcher);
   RISCVOutgoingValueHandler ArgHandler(MIRBuilder, MF.getRegInfo(), Call);
   if (!determineAndHandleAssignments(ArgHandler, ArgAssigner, SplitArgInfos,
                                      MIRBuilder, CC, Info.IsVarArg))
@@ -637,9 +636,11 @@ bool RISCVCallLowering::lowerCall(MachineIRBuilder &MIRBuilder,
   SmallVector<ArgInfo, 4> SplitRetInfos;
   splitToValueTypes(Info.OrigRet, SplitRetInfos, DL, CC);
 
+  RVVArgDispatcher RetDispatcher{&MF, getTLI<RISCVTargetLowering>(),
+                                 ArrayRef(F.getReturnType())};
   RISCVIncomingValueAssigner RetAssigner(
       CC == CallingConv::Fast ? RISCV::CC_RISCV_FastCC : RISCV::CC_RISCV,
-      /*IsRet=*/true);
+      /*IsRet=*/true, RetDispatcher);
   RISCVCallReturnHandler RetHandler(MIRBuilder, MF.getRegInfo(), Call);
   if (!determineAndHandleAssignments(RetHandler, RetAssigner, SplitRetInfos,
                                      MIRBuilder, CC, Info.IsVarArg))
diff --git a/llvm/lib/Target/RISCV/GISel/RISCVRegisterBankInfo.cpp b/llvm/lib/Target/RISCV/GISel/RISCVRegisterBankInfo.cpp
index ca77a9729e03..c1fde738c000 100644
--- a/llvm/lib/Target/RISCV/GISel/RISCVRegisterBankInfo.cpp
+++ b/llvm/lib/Target/RISCV/GISel/RISCVRegisterBankInfo.cpp
@@ -142,46 +142,6 @@ static const RegisterBankInfo::ValueMapping *getFPValueMapping(unsigned Size) {
   return &RISCV::ValueMappings[Idx];
 }
 
-/// Returns whether opcode \p Opc is a pre-isel generic floating-point opcode,
-/// having only floating-point operands.
-/// FIXME: this is copied from target AArch64. Needs some code refactor here to
-/// put this function in GlobalISel/Utils.cpp.
-static bool isPreISelGenericFloatingPointOpcode(unsigned Opc) {
-  switch (Opc) {
-  case TargetOpcode::G_FADD:
-  case TargetOpcode::G_FSUB:
-  case TargetOpcode::G_FMUL:
-  case TargetOpcode::G_FMA:
-  case TargetOpcode::G_FDIV:
-  case TargetOpcode::G_FCONSTANT:
-  case TargetOpcode::G_FPEXT:
-  case TargetOpcode::G_FPTRUNC:
-  case TargetOpcode::G_FCEIL:
-  case TargetOpcode::G_FFLOOR:
-  case TargetOpcode::G_FNEARBYINT:
-  case TargetOpcode::G_FNEG:
-  case TargetOpcode::G_FCOPYSIGN:
-  case TargetOpcode::G_FCOS:
-  case TargetOpcode::G_FSIN:
-  case TargetOpcode::G_FLOG10:
-  case TargetOpcode::G_FLOG:
-  case TargetOpcode::G_FLOG2:
-  case TargetOpcode::G_FSQRT:
-  case TargetOpcode::G_FABS:
-  case TargetOpcode::G_FEXP:
-  case TargetOpcode::G_FRINT:
-  case TargetOpcode::G_INTRINSIC_TRUNC:
-  case TargetOpcode::G_INTRINSIC_ROUND:
-  case TargetOpcode::G_INTRINSIC_ROUNDEVEN:
-  case TargetOpcode::G_FMAXNUM:
-  case TargetOpcode::G_FMINNUM:
-  case TargetOpcode::G_FMAXIMUM:
-  case TargetOpcode::G_FMINIMUM:
-    return true;
-  }
-  return false;
-}
-
 // TODO: Make this more like AArch64?
 bool RISCVRegisterBankInfo::hasFPConstraints(
     const MachineInstr &MI, const MachineRegisterInfo &MRI,
diff --git a/llvm/lib/Target/RISCV/RISCVFeatures.td b/llvm/lib/Target/RISCV/RISCVFeatures.td
index 794455aa7304..59962216e0c0 100644
--- a/llvm/lib/Target/RISCV/RISCVFeatures.td
+++ b/llvm/lib/Target/RISCV/RISCVFeatures.td
@@ -1226,9 +1226,9 @@ def TuneNoSinkSplatOperands
                        "false", "Disable sink splat operands to enable .vx, .vf,"
                        ".wx, and .wf instructions">;
 
-def TuneNoStripWSuffix
-    : SubtargetFeature<"no-strip-w-suffix", "EnableStripWSuffix", "false",
-                       "Disable strip W suffix">;
+def TunePreferWInst
+    : SubtargetFeature<"prefer-w-inst", "PreferWInst", "true",
+                       "Prefer instructions with W suffix">;
 
 def TuneConditionalCompressedMoveFusion
     : SubtargetFeature<"conditional-cmv-fusion", "HasConditionalCompressedMoveFusion",
diff --git a/llvm/lib/Target/RISCV/RISCVISelLowering.cpp b/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
index 1d1ea6bae6c1..765838aafb58 100644
--- a/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
+++ b/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
author	Tasuku Suzuki <stasuku@gmail.com>	2013-04-13 15:54:12 +0900
committer	The Qt Project <gerrit-noreply@qt-project.org>	2013-06-04 00:05:55 +0200
commit	830cbb1aaf047d8f0ab63f25148b7dc7cc9f8fe0 (patch)
tree	799c1fba65ca768346ace7f3e3c4f7dcd1d17775 /src/gui/painting
parent	092a2f813cc02fe16f875149cd663922b9e99651 (diff)
author	Wang Pengcheng <wangpengcheng.pp@bytedance.com>	2024-04-16 21:27:31 +0800
committer	Wang Pengcheng <wangpengcheng.pp@bytedance.com>	2024-04-16 21:27:31 +0800
commit	36640769547bedf26ddf149132c1b75f9e088a21 (patch)
tree	ae7d210d8d7593f7bb672006e4a31f192a02b9c5
parent	d72e50aae48ffed5fb6c1a9ad6bfc47c5ca93230 (diff)
parent	e7fb49c24e4be4780ee4df9829980c5e8ddd511e (diff)