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| author | Erich Keane <erich.keane@intel.com> | 2017-03-30 21:48:55 +0000 |
|---|---|---|
| committer | Erich Keane <erich.keane@intel.com> | 2017-03-30 21:48:55 +0000 |
| commit | 623efd8a75fef823c83ce5dc1a5666c9e667793c (patch) | |
| tree | 7167a3fb8d6cf9a71c5edc1d1fcad85271944eaa /clang/lib/CodeGen/CGCall.cpp | |
| parent | 265a7c71d0ace8262babd00a9109a0d2afd00d89 (diff) | |
| download | llvm-623efd8a75fef823c83ce5dc1a5666c9e667793c.zip llvm-623efd8a75fef823c83ce5dc1a5666c9e667793c.tar.gz llvm-623efd8a75fef823c83ce5dc1a5666c9e667793c.tar.bz2 | |
Clang changes for alloc_align attribute
GCC has the alloc_align attribute, which is similar to assume_aligned, except the attribute's parameter is the index of the integer parameter that needs aligning to.
Differential Revision: https://reviews.llvm.org/D29599
llvm-svn: 299117
Diffstat (limited to 'clang/lib/CodeGen/CGCall.cpp')
| -rw-r--r-- | clang/lib/CodeGen/CGCall.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/clang/lib/CodeGen/CGCall.cpp b/clang/lib/CodeGen/CGCall.cpp index 55191b2..e11bc94 100644 --- a/clang/lib/CodeGen/CGCall.cpp +++ b/clang/lib/CodeGen/CGCall.cpp @@ -4348,6 +4348,10 @@ RValue CodeGenFunction::EmitCall(const CGFunctionInfo &CallInfo, llvm::ConstantInt *AlignmentCI = cast<llvm::ConstantInt>(Alignment); EmitAlignmentAssumption(Ret.getScalarVal(), AlignmentCI->getZExtValue(), OffsetValue); + } else if (const auto *AA = TargetDecl->getAttr<AllocAlignAttr>()) { + llvm::Value *ParamVal = + CallArgs[AA->getParamIndex() - 1].RV.getScalarVal(); + EmitAlignmentAssumption(Ret.getScalarVal(), ParamVal); } } |