diff options
Diffstat (limited to 'clang/lib/CodeGen/TargetInfo.cpp')
| -rw-r--r-- | clang/lib/CodeGen/TargetInfo.cpp | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/clang/lib/CodeGen/TargetInfo.cpp b/clang/lib/CodeGen/TargetInfo.cpp index 329401d5c46..caac27b965c 100644 --- a/clang/lib/CodeGen/TargetInfo.cpp +++ b/clang/lib/CodeGen/TargetInfo.cpp @@ -3548,15 +3548,17 @@ Address X86_64ABIInfo::EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, llvm::Value *RegHiAddr = TyLo->isFPOrFPVectorTy() ? GPAddr : FPAddr; // Copy the first element. - llvm::Value *V = - CGF.Builder.CreateDefaultAlignedLoad( - CGF.Builder.CreateBitCast(RegLoAddr, PTyLo)); + // FIXME: Our choice of alignment here and below is probably pessimistic. + llvm::Value *V = CGF.Builder.CreateAlignedLoad( + TyLo, CGF.Builder.CreateBitCast(RegLoAddr, PTyLo), + CharUnits::fromQuantity(getDataLayout().getABITypeAlignment(TyLo))); CGF.Builder.CreateStore(V, CGF.Builder.CreateStructGEP(Tmp, 0, CharUnits::Zero())); // Copy the second element. - V = CGF.Builder.CreateDefaultAlignedLoad( - CGF.Builder.CreateBitCast(RegHiAddr, PTyHi)); + V = CGF.Builder.CreateAlignedLoad( + TyHi, CGF.Builder.CreateBitCast(RegHiAddr, PTyHi), + CharUnits::fromQuantity(getDataLayout().getABITypeAlignment(TyHi))); CharUnits Offset = CharUnits::fromQuantity( getDataLayout().getStructLayout(ST)->getElementOffset(1)); CGF.Builder.CreateStore(V, CGF.Builder.CreateStructGEP(Tmp, 1, Offset)); |
