| Commit message (Collapse) | Author | Age | Files | Lines |
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this patch adds support for the explicit bool specifier.
Changes:
- The parsing for the explicit(bool) specifier was added in ParseDecl.cpp.
- The storage of the explicit specifier was changed. the explicit specifier was stored as a boolean value in the FunctionDeclBitfields and in the DeclSpec class. now it is stored as a PointerIntPair<Expr*, 2> with a flag and a potential expression in CXXConstructorDecl, CXXDeductionGuideDecl, CXXConversionDecl and in the DeclSpec class.
- Following the AST change, Serialization, ASTMatchers, ASTComparator and ASTPrinter were adapted.
- Template instantiation was adapted to instantiate the potential expressions of the explicit(bool) specifier When instantiating their associated declaration.
- The Add*Candidate functions were adapted, they now take a Boolean indicating if the context allowing explicit constructor or conversion function and this boolean is used to remove invalid overloads that required template instantiation to be detected.
- Test for Semantic and Serialization were added.
This patch is not yet complete. I still need to check that interaction with CTAD and deduction guides is correct. and add more tests for AST operations. But I wanted first feedback.
Perhaps this patch should be spited in smaller patches, but making each patch testable as a standalone may be tricky.
Patch by Tyker
Differential Revision: https://reviews.llvm.org/D60934
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359949 91177308-0d34-0410-b5e6-96231b3b80d8
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specializations for variable templates.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359947 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
Related llvm patch: D60348.
Patch co-authored by Sanjin Sijaric.
Reviewers: rnk, efriedma, TomTan, ssijaric, ostannard
Reviewed By: efriedma
Subscribers: dmajor, richard.townsend.arm, ostannard, javed.absar, kristof.beyls, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D60349
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359932 91177308-0d34-0410-b5e6-96231b3b80d8
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Reviewers: alexfh
Subscribers: cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D61480
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359876 91177308-0d34-0410-b5e6-96231b3b80d8
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declaration"
This reverts commit fc40cbd9d8c63e65eed3590ba925321afe782e1d.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359859 91177308-0d34-0410-b5e6-96231b3b80d8
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internal-linkage declaration"
See cfe-commits thread for r359814.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359858 91177308-0d34-0410-b5e6-96231b3b80d8
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diagnostics emitted (or suppressed) during completion don't interfere with the overload notes
Because diagnostics and their notes are not connected at the API level,
if the error message for an overload is emitted, then the overload
candidates are completed - if a diagnostic is emitted during that work,
the notes related to overload candidates would be attached to the latter
diagnostic, not the original error. Sort of worse, if the latter
diagnostic was disabled, the notes are disabled.
Reviewers: rsmith
Differential Revision: https://reviews.llvm.org/D61357
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359854 91177308-0d34-0410-b5e6-96231b3b80d8
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If an address_space attribute is defined in a macro, print the macro instead
when diagnosing a warning or error for incompatible pointers with different
address_spaces.
We allow this for all attributes (not just address_space), and for multiple
attributes declared in the same macro.
Differential Revision: https://reviews.llvm.org/D51329
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359826 91177308-0d34-0410-b5e6-96231b3b80d8
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GCC warns on these cases, but we currently just silently ignore the attribute.
Differential Revision: https://reviews.llvm.org/D61097
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359814 91177308-0d34-0410-b5e6-96231b3b80d8
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explicit function specialization with the MemberSpecializationInfo used
everywhere else.
Not NFC: the ad-hoc pattern tracking was not being serialized /
deserialized properly. That's fixed here.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359747 91177308-0d34-0410-b5e6-96231b3b80d8
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According to alignment section in below ARM64 ABI document, MSVC could increase
alignment of global data based on its total size. Clang doesn't do this. Compile
the same symbol into different alignments by Clang and MSVC could cause link
error because some instruction encodings, like 64-bit LDR/STR with immediate,
require the target to be 8 bytes aligned, and linker could choose code stream
with such LDR/STR instruction from MSVC and 4 bytes aligned data from Clang into
final image, which actually cannot be linked together
(see https://bugs.llvm.org/show_bug.cgi?id=41506 for more details).
https://docs.microsoft.com/en-us/cpp/build/arm64-windows-abi-conventions?view=vs-2019#alignment
Differential Revision: https://reviews.llvm.org/D61225
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359744 91177308-0d34-0410-b5e6-96231b3b80d8
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The parser was dealing with unexpected "template" keywords after "using"
keywords too late and putting the parser into the wrong state, which could
lead to a crash down the line. This change allows the parser to consume the
bad "template" keywords earlier, and continue parsing as if "template" was
never there to begin with for better error recovery.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359740 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359727 91177308-0d34-0410-b5e6-96231b3b80d8
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-analyzer-checker-help, but do under the new flag -analyzer-checker-help-hidden
During my work on analyzer dependencies, I created a great amount of new
checkers that emitted no diagnostics at all, and were purely modeling some
function or another.
However, the user shouldn't really disable/enable these by hand, hence this
patch, which hides these by default. I intentionally chose not to hide alpha
checkers, because they have a scary enough name, in my opinion, to cause no
surprise when they emit false positives or cause crashes.
The patch introduces the Hidden bit into the TableGen files (you may remember
it before I removed it in D53995), and checkers that are either marked as
hidden, or are in a package that is marked hidden won't be displayed under
-analyzer-checker-help. -analyzer-checker-help-hidden, a new flag meant for
developers only, displays the full list.
Differential Revision: https://reviews.llvm.org/D60925
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359720 91177308-0d34-0410-b5e6-96231b3b80d8
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$ grep 'DIAG_SIZE_SEMA =' include/clang/Basic/DiagnosticIDs.h
DIAG_SIZE_SEMA = 4000,
$ grep DIAG $(build)/tools/clang/include/clang/Basic/DiagnosticSemaKinds.inc | wc -l
3499
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359702 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
Changes the signature of the TextGenerator std::function to return an Expected<std::string>
instead of std::string to allow for (non-fatal) failures. Previously, we
expected that any failures would be expressed with assertions. However, that's
unfriendly to running the code in servers or other places that don't want their
library calls to crash the program.
Correspondingly, updates Transformer's handling of failures in TextGenerators
and the signature of `ChangeConsumer`.
Reviewers: ilya-biryukov
Subscribers: cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D61015
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359574 91177308-0d34-0410-b5e6-96231b3b80d8
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This was introduced at r313975. As DIAG_SIZE_CROSSTU and
DIAG_SIZE_COMMENT are both 100 this should be NFC.
Differential Revision: https://reviews.llvm.org/D61264
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359558 91177308-0d34-0410-b5e6-96231b3b80d8
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Currently we always inline functions that have no branches, i.e. have exactly
three CFG blocks: ENTRY, some code, EXIT. This makes sense because when there
are no branches, it means that there's no exponential complexity introduced
by inlining such function. Such functions also don't trigger various fundamental
problems with our inlining mechanism, such as the problem of inlined
defensive checks.
Sometimes the CFG may contain more blocks, but in practice it still has
linear structure because all directions (except, at most, one) of all branches
turned out to be unreachable. When this happens, still treat the function
as "small". This is useful, in particular, for dealing with C++17 if constexpr.
Differential Revision: https://reviews.llvm.org/D61051
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359531 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359523 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
This patch adds support for __builtin_dcbf for PPC.
__builtin_dcbf copies the contents of a modified block from the data cache
to main memory and flushes the copy from the data cache.
Differential revision: https://reviews.llvm.org/D59843
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359517 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
GCC's -Wtype-limits (part of -Wextra):
Warn if a comparison is always true or always false due to the limited range of the data type
Reviewers: rsmith, aaron.ballman, lebedev.ri, thakis
Reviewed By: rsmith
Subscribers: lebedev.ri, jdoerfert, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D58841
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359516 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
We are currently implementing support in LLDB that reconstructs the STL templates from
the target program in the expression evaluator. This reconstruction happens during the
import process from our debug info AST into the expression evaluation AST, which means
we need a way to intercept the ASTImporter import process.
This patch adds an protected ImportImpl method that we can overwrite in LLDB to implement
our special importing logic (which is essentially just looking into a C++ module that is attached to
the target context). Because ImportImpl has to call MapImported/AddToLookup for the decls it
creates, this patch also exposes those via a new unified method and checks that we call it when
importing decls.
Reviewers: martong, balazske, a.sidorin, shafik, a_sidorin
Reviewed By: martong, a_sidorin
Subscribers: rnkovacs, cfe-commits, lldb-commits, aprantl
Tags: #clang
Differential Revision: https://reviews.llvm.org/D59485
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359502 91177308-0d34-0410-b5e6-96231b3b80d8
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D54996 Changed the behaviour of clang_Cursor_isAnonymous, but there is no alternative available to get the old behaviour in some cases, which is essential for determining if a record is syntactically accessible, e.g.
struct {
int x;
int y;
} foo;
struct {
struct {
int x;
int y;
};
} bar;
void fun(struct { int x; int y; } *param);
The only 'anonymous' struct here is the one nested in bar, since there is
no way to reference the struct itself, only the fields within. Though the
anonymity applies to the instance itself, not the type.
To avoid confusion, I have added a new function called clang_Cursor_isAnonymousRecordDecl
which has the old behaviour of clang_Cursor_isAnonymous (and updated the doc
for the latter as well, which was seemingly forgotten).
Patch by Jorn Vernee.
Differential Revision: https://reviews.llvm.org/D61232
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359448 91177308-0d34-0410-b5e6-96231b3b80d8
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When more than one multilib flag matches, try to select the best
possible match based on priority. When two different multilibs with
the same same priority match, we still throw an error matching the
existing behavior.
Differential Revision: https://reviews.llvm.org/D60990
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359359 91177308-0d34-0410-b5e6-96231b3b80d8
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This provides intrinsics support for Memory Tagging Extension (MTE),
which was introduced with the Armv8.5-a architecture.
These intrinsics are available when __ARM_FEATURE_MEMORY_TAGGING is defined.
Each intrinsic is described in detail in the ACLE Q1 2019 documentation:
https://developer.arm.com/docs/101028/latest
Reviewed By: Tim Nortover, David Spickett
Differential Revision: https://reviews.llvm.org/D60485
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359348 91177308-0d34-0410-b5e6-96231b3b80d8
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counters.
According to the OpenMP 5.0, For any associated loop where the b or lb
expression is not loop invariant with respect to the outermost loop, the
var-outer that appears in the expression may not have a random access
iterator type.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359340 91177308-0d34-0410-b5e6-96231b3b80d8
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Contrary to MSVC, GCC/MinGW needs to have the dllexport attribute
on the template instantiation declaration, not on the definition.
Previously clang never marked explicit template instantiations as
dllexport in MinGW mode, if the instantiation had a previous
declaration, regardless of where the attribute was placed. This
makes Clang behave like GCC in this regard, and allows using the
same attribute form for both MinGW compilers.
This fixes PR40256.
Differential Revision: https://reviews.llvm.org/D61118
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359285 91177308-0d34-0410-b5e6-96231b3b80d8
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Fixes PR40409
Differential Revision: https://reviews.llvm.org/D61174
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359280 91177308-0d34-0410-b5e6-96231b3b80d8
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class-scope explicit specialization of a class template.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359266 91177308-0d34-0410-b5e6-96231b3b80d8
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internal linkage entities.
Such constructs are ill-formed by [temp.explicit]p13. We make a special
exception to permit an invalid construct used by libc++ in some build
modes: its <valarray> header declares some functions with the
internal_linkage attribute and then (meaninglessly) provides explicit
instantiation declarations for them. Luckily, Clang happens to
effectively ignore the explicit instantiation declaration when
generating code in this case, and this change codifies that behavior.
This reinstates part of r359048, reverted in r359076. (The libc++ issue
triggering the rollback has been addressed.)
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359259 91177308-0d34-0410-b5e6-96231b3b80d8
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These builtins provide access to the new integer and
sub-integer variants of MMA (matrix multiply-accumulate) instructions
provided by CUDA-10.x on sm_75 (AKA Turing) GPUs.
Also added a feature for PTX 6.4. While Clang/LLVM does not generate
any PTX instructions that need it, we still need to pass it through to
ptxas in order to be able to compile code that uses the new 'mma'
instruction as inline assembly (e.g used by NVIDIA's CUTLASS library
https://github.com/NVIDIA/cutlass/blob/master/cutlass/arch/mma.h#L101)
Differential Revision: https://reviews.llvm.org/D60279
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359248 91177308-0d34-0410-b5e6-96231b3b80d8
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loop nests.
Added a checks that the initializer/condition expressions depend only
only of the single previous loop iteration variable.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359200 91177308-0d34-0410-b5e6-96231b3b80d8
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Thanks to Nico Weber for pointing this out!
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359158 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
Add a new variant to GlobalDecl for these so that we can detect them
more easily during debug info emission and handle them appropriately.
Reviewers: rsmith, rjmccall, jyu2
Subscribers: aprantl, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D60930
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359148 91177308-0d34-0410-b5e6-96231b3b80d8
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Added basic semantic analysis for the non-rectangular loop nests for
OpenMP 5.0 support.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359132 91177308-0d34-0410-b5e6-96231b3b80d8
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Differential Revision: https://reviews.llvm.org/D61029
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359107 91177308-0d34-0410-b5e6-96231b3b80d8
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The change breaks libc++ with the follwing error:
In file included from valarray:4:
.../include/c++/v1/valarray:1062:60: error: explicit instantiation declaration of 'valarray<_Tp>' with internal linkage
_LIBCPP_EXTERN_TEMPLATE(_LIBCPP_FUNC_VIS valarray<size_t>::valarray(size_t))
^
.../include/c++/v1/valarray:1063:60: error: explicit instantiation declaration of '~valarray<_Tp>' with internal linkage
_LIBCPP_EXTERN_TEMPLATE(_LIBCPP_FUNC_VIS valarray<size_t>::~valarray())
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359076 91177308-0d34-0410-b5e6-96231b3b80d8
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Reviewers: sammccall
Differential Revision: https://reviews.llvm.org/D60995
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359075 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
This patch implements `__builtin_is_constant_evaluated` as specifier by [P0595R2](https://wg21.link/p0595r2). It is built on the back of Bill Wendling's work for `__builtin_constant_p()`.
More tests to come, but early feedback is appreciated.
I plan to implement warnings for common mis-usages like those belowe in a following patch:
```
void foo(int x) {
if constexpr (std::is_constant_evaluated())) { // condition is always `true`. Should use plain `if` instead.
foo_constexpr(x);
} else {
foo_runtime(x);
}
}
```
Reviewers: rsmith, MaskRay, bruno, void
Reviewed By: rsmith
Subscribers: dexonsmith, zoecarver, fdeazeve, kristina, cfe-commits
Differential Revision: https://reviews.llvm.org/D55500
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359067 91177308-0d34-0410-b5e6-96231b3b80d8
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of an auto"
This commit changed the initializer expression passed into
initialization (stripping off an enclosing pair of parentheses or
braces) and subtly changing the meaning of programs, typically by
inserting bogus calls to copy constructors.
See the added testcase in test/SemaCXX/cxx1y-init-captures.cpp for an
example of the breakage.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359066 91177308-0d34-0410-b5e6-96231b3b80d8
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recursively captured.
Under ARC, a block variable is zero-initialized when it is recursively
captured by the block literal initializer.
rdar://problem/11022762
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359049 91177308-0d34-0410-b5e6-96231b3b80d8
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const-qualified type is not implicitly given internal linkage. But a
variable template declared 'static' is.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359048 91177308-0d34-0410-b5e6-96231b3b80d8
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It now comes with a follow-up fix for the clients of this API
in clangd and clang-tidy.
Differential Revision: https://reviews.llvm.org/D59977
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@359035 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
The existing CTU mechanism imports `FunctionDecl`s where the definition is available in another TU. This patch extends that to VarDecls, to bind more constants.
- Add VarDecl importing functionality to CrossTranslationUnitContext
- Import Decls while traversing them in AnalysisConsumer
- Add VarDecls to CTU external mappings generator
- Name changes from "external function map" to "external definition map"
Reviewers: NoQ, dcoughlin, xazax.hun, george.karpenkov, martong
Reviewed By: xazax.hun
Subscribers: Charusso, baloghadamsoftware, mikhail.ramalho, Szelethus, donat.nagy, dkrupp, george.karpenkov, mgorny, whisperity, szepet, rnkovacs, a.sidorin, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D46421
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@358968 91177308-0d34-0410-b5e6-96231b3b80d8
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Stuffing invalid source locations (such as those in functions produced by
body farms) into path diagnostics causes crashes.
Fix a typo in a nearby function name.
Differential Revision: https://reviews.llvm.org/D60808
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@358945 91177308-0d34-0410-b5e6-96231b3b80d8
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Implement cplusplus.SmartPtrModeling, a new checker that doesn't
emit any warnings but models methods of smart pointers more precisely.
For now the only thing it does is make `(bool) P` return false when `P`
is a freshly moved pointer. This addresses a false positive in the
use-after-move-checker.
Differential Revision: https://reviews.llvm.org/D60796
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@358944 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@358932 91177308-0d34-0410-b5e6-96231b3b80d8
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Previously, it was only documented by `-cc1 -help`, so people weren't
aware of it, as discussed in D60732.
Reviewed By: Charusso, NoQ
Differential Revision: https://reviews.llvm.org/D60845
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@358917 91177308-0d34-0410-b5e6-96231b3b80d8
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`isClassMethod`, and `isInstanceMethod`
Summary:
isClassMessage is an equivalent to isInstanceMessage for ObjCMessageExpr, but matches message expressions to classes.
isClassMethod and isInstanceMethod check whether a method declaration (or definition) is for a class method or instance method (respectively).
Contributed by @mywman!
Reviewers: benhamilton, klimek, mwyman
Reviewed By: benhamilton, mwyman
Subscribers: cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D60920
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@358904 91177308-0d34-0410-b5e6-96231b3b80d8
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Moved UninitializedObjectChecker from the 'alpha.cplusplus' to the
'optin.cplusplus' package.
Differential Revision: https://reviews.llvm.org/D58573
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@358797 91177308-0d34-0410-b5e6-96231b3b80d8
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