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Serge Guelton be88539b85 Replace llvm::isPodLike<...> by llvm::is_trivially_copyable<...> 
As noted in https://bugs.llvm.org/show_bug.cgi?id=36651, the specialization for
isPodLike<std::pair<...>> did not match the expectation of
std::is_trivially_copyable which makes the memcpy optimization invalid.

This patch renames the llvm::isPodLike trait into llvm::is_trivially_copyable.
Unfortunately std::is_trivially_copyable is not portable across compiler / STL
versions. So a portable version is provided too.

Note that the following specialization were invalid:

    std::pair<T0, T1>
    llvm::Optional<T>

Tests have been added to assert that former specialization are respected by the
standard usage of llvm::is_trivially_copyable, and that when a decent version
of std::is_trivially_copyable is available, llvm::is_trivially_copyable is
compared to std::is_trivially_copyable.

As of this patch, llvm::Optional is no longer considered trivially copyable,
even if T is. This is to be fixed in a later patch, as it has impact on a
long-running bug (see r347004)

Note that GCC warns about this UB, but this got silented by https://reviews.llvm.org/D50296.

Differential Revision: https://reviews.llvm.org/D54472

llvm-svn: 351701
 		2019-01-20 21:19:56 +00:00
..
ARCMigrate.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
BuildSystem.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CIndex.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CIndexCXX.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CIndexCodeCompletion.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CIndexDiagnostic.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CIndexDiagnostic.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CIndexHigh.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CIndexInclusionStack.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CIndexUSRs.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CIndexer.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CIndexer.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CLog.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CMakeLists.txt [libclang] Add dependency on clangSerialization to unbreak -DBUILD_SHARED_LIBS=1 build after rC349237 2018-12-15 08:54:06 +00:00
CXComment.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CXComment.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CXCompilationDatabase.cpp [Tooling][libclang] Remove unused CompilationDatabase::MappedSources 2017-05-23 13:50:43 +00:00
CXCursor.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CXCursor.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CXIndexDataConsumer.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CXIndexDataConsumer.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CXLoadedDiagnostic.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CXLoadedDiagnostic.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CXSourceLocation.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CXSourceLocation.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CXStoredDiagnostic.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CXString.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CXString.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CXTranslationUnit.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CXType.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CXType.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CursorVisitor.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
Index_Internal.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
Indexing.cpp Replace llvm::isPodLike<...> by llvm::is_trivially_copyable<...> 2019-01-20 21:19:56 +00:00
libclang.exports [libclang 7/8] Add support for getting property setter and getter names 2018-08-03 05:38:29 +00:00