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Fix miscompile of linux kernel (llvm 1.9)

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llvm-svn: 34015
This commit is contained in:
Andrew Lenharth 2007-02-07 22:32:03 +00:00
parent 84c0e17e92
commit 054cc8ad04
1 changed files with 3 additions and 3 deletions
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6
llvm/lib/Transforms/Scalar/InstructionCombining.cpp
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@ -377,9 +377,9 @@ static bool isEliminableCastOfCast(const Type *SrcTy, const Type *MidTy,
// If we are casting between pointer and integer types, treat pointers as
// integers of the appropriate size for the code below.
if (isa<PointerType>(SrcTy)) SrcTy = TD->getIntPtrType();
if (isa<PointerType>(MidTy)) MidTy = TD->getIntPtrType();
if (isa<PointerType>(DstTy)) DstTy = TD->getIntPtrType();
if (isa<PointerType>(SrcTy)) SrcTy = TD->getIntPtrType()->getSignedVersion();
if (isa<PointerType>(MidTy)) MidTy = TD->getIntPtrType()->getSignedVersion();
if (isa<PointerType>(DstTy)) DstTy = TD->getIntPtrType()->getSignedVersion();
// Allow free casting and conversion of sizes as long as the sign doesn't
// change...