Bill, please pull this patch into the 2.9 branch.
Thanks!
Doug
On Mar 10, 2011, at 6:02 AM, NAKAMURA Takumi wrote:
> Author: chapuni
> Date: Thu Mar 10 08:02:21 2011
> New Revision: 127405
>
> URL: http://llvm.org/viewvc/llvm-project?rev=127405&view=rev
> Log:
> lib/CodeGen/CGCall.cpp: Don't invoke multiple Builder.CreateBitCast() on
> Builder.CreateMemCpy. Or we would see sideeffect incompatibility among gcc
> and clang.
>
> Modified:
> cfe/trunk/lib/CodeGen/CGCall.cpp
>
> Modified: cfe/trunk/lib/CodeGen/CGCall.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGCall.cpp?rev=127405&r1=127404&r2=127405&view=diff
> ==============================================================================
> --- cfe/trunk/lib/CodeGen/CGCall.cpp (original)
> +++ cfe/trunk/lib/CodeGen/CGCall.cpp Thu Mar 10 08:02:21 2011
> @@ -909,8 +909,10 @@
> // copy.
> const llvm::Type *I8PtrTy = Builder.getInt8PtrTy();
> CharUnits Size = getContext().getTypeSizeInChars(Ty);
> - Builder.CreateMemCpy(Builder.CreateBitCast(AlignedTemp, I8PtrTy),
> - Builder.CreateBitCast(V, I8PtrTy),
> + llvm::Value *Dst = Builder.CreateBitCast(AlignedTemp, I8PtrTy);
> + llvm::Value *Src = Builder.CreateBitCast(V, I8PtrTy);
> + Builder.CreateMemCpy(Dst,
> + Src,
> llvm::ConstantInt::get(IntPtrTy,
> Size.getQuantity()),
> ArgI.getIndirectAlign(),
>
>
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