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| author | David Majnemer <david.majnemer@gmail.com> | 2015-02-03 23:04:06 +0000 |
|---|---|---|
| committer | David Majnemer <david.majnemer@gmail.com> | 2015-02-03 23:04:06 +0000 |
| commit | fd1e739a442b09a3f84eedfffda10b2263d76faa (patch) | |
| tree | 5c84bb749b6375cbbf3040bbf663b5e553216633 /clang/lib/CodeGen/CodeGenFunction.h | |
| parent | 2a96704b339699d60dd8849b4a73f4e133879354 (diff) | |
| download | llvm-fd1e739a442b09a3f84eedfffda10b2263d76faa.zip llvm-fd1e739a442b09a3f84eedfffda10b2263d76faa.tar.gz llvm-fd1e739a442b09a3f84eedfffda10b2263d76faa.tar.bz2 | |
CodeGen: Copy-ctorm must obey the destination's alignment requirement
We would synthesize memcpy intrinsics when emitting calls to trivial C++
constructors but we wouldn't take into account the alignment of the
destination.
llvm-svn: 228061
Diffstat (limited to 'clang/lib/CodeGen/CodeGenFunction.h')
| -rw-r--r-- | clang/lib/CodeGen/CodeGenFunction.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/clang/lib/CodeGen/CodeGenFunction.h b/clang/lib/CodeGen/CodeGenFunction.h index ea63c84..03d2ab3 100644 --- a/clang/lib/CodeGen/CodeGenFunction.h +++ b/clang/lib/CodeGen/CodeGenFunction.h @@ -1559,6 +1559,15 @@ public: true); } + void EmitAggregateCopyCtor(llvm::Value *DestPtr, llvm::Value *SrcPtr, + QualType DestTy, QualType SrcTy) { + CharUnits DestTypeAlign = getContext().getTypeAlignInChars(DestTy); + CharUnits SrcTypeAlign = getContext().getTypeAlignInChars(SrcTy); + EmitAggregateCopy(DestPtr, SrcPtr, SrcTy, /*IsVolatile=*/false, + std::min(DestTypeAlign, SrcTypeAlign), + /*IsAssignment=*/false); + } + /// EmitAggregateCopy - Emit an aggregate copy. /// /// \param isVolatile - True iff either the source or the destination is |