[CUDA] Allow parsing of host and device code simultaneously.

 * adds -aux-triple option to specify target triple
 * propagates aux target info to AST context and Preprocessor
 * pulls in target specific preprocessor macros.
 * pulls in target-specific builtins from aux target.
 * sets appropriate host or device attribute on builtins.

Differential Revision: http://reviews.llvm.org/D12917

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@248299 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 1 deletions

diff --git a/include/clang/Lex/Preprocessor.h b/include/clang/Lex/Preprocessor.h
index b2f58ead0e..de252cb5d5 100644
--- a/include/clang/Lex/Preprocessor.h
+++ b/include/clang/Lex/Preprocessor.h
@@ -98,6 +98,7 @@ class Preprocessor : public RefCountedBase<Preprocessor> {
   DiagnosticsEngine        *Diags;
   LangOptions       &LangOpts;
   const TargetInfo  *Target;
+  const TargetInfo  *AuxTarget;
   FileManager       &FileMgr;
   SourceManager     &SourceMgr;
   std::unique_ptr<ScratchBuffer> ScratchBuf;
@@ -656,7 +657,10 @@ public:
   ///
   /// \param Target is owned by the caller and must remain valid for the
   /// lifetime of the preprocessor.
-  void Initialize(const TargetInfo &Target);
+  /// \param AuxTarget is owned by the caller and must remain valid for
+  /// the lifetime of the preprocessor.
+  void Initialize(const TargetInfo &Target,
+                  const TargetInfo *AuxTarget = nullptr);
 
   /// \brief Initialize the preprocessor to parse a model file
   ///
@@ -678,6 +682,7 @@ public:
 
   const LangOptions &getLangOpts() const { return LangOpts; }
   const TargetInfo &getTargetInfo() const { return *Target; }
+  const TargetInfo *getAuxTargetInfo() const { return AuxTarget; }
   FileManager &getFileManager() const { return FileMgr; }
   SourceManager &getSourceManager() const { return SourceMgr; }
   HeaderSearch &getHeaderSearchInfo() const { return HeaderInfo; }