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| author | Zhou Sheng <zhousheng00@gmail.com> | 2007-03-08 15:15:18 +0000 |
|---|---|---|
| committer | Zhou Sheng <zhousheng00@gmail.com> | 2007-03-08 15:15:18 +0000 |
| commit | d1eb3d593e7bf9c0d1315cce990120531c4830e7 (patch) | |
| tree | 7938f7bbf2a1e770e361a0d9f3a8fa0cdddf9e9c | |
| parent | ddf082082c7594f15be2ee9efc00db3a8a59deb0 (diff) | |
| download | bcm5719-llvm-d1eb3d593e7bf9c0d1315cce990120531c4830e7.tar.gz bcm5719-llvm-d1eb3d593e7bf9c0d1315cce990120531c4830e7.zip | |
Fix a bug in function ComputeMaskedBits().
llvm-svn: 35027
| -rw-r--r-- | llvm/lib/Transforms/Scalar/InstructionCombining.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/Scalar/InstructionCombining.cpp b/llvm/lib/Transforms/Scalar/InstructionCombining.cpp index 02336e59c4c..79ad33697c7 100644 --- a/llvm/lib/Transforms/Scalar/InstructionCombining.cpp +++ b/llvm/lib/Transforms/Scalar/InstructionCombining.cpp @@ -677,7 +677,7 @@ static void ComputeMaskedBits(Value *V, APInt Mask, APInt& KnownZero, const IntegerType *SrcTy = cast<IntegerType>(I->getOperand(0)->getType()); APInt NewBits(APInt::getAllOnesValue(BitWidth).shl(SrcTy->getBitWidth())); - Mask &= SrcTy->getMask().zext(BitWidth); + Mask &= SrcTy->getMask().zextOrTrunc(BitWidth); ComputeMaskedBits(I->getOperand(0), Mask, KnownZero, KnownOne, Depth+1); assert((KnownZero & KnownOne) == 0 && "Bits known to be one AND zero?"); // The top bits are known to be zero. @@ -689,7 +689,7 @@ static void ComputeMaskedBits(Value *V, APInt Mask, APInt& KnownZero, const IntegerType *SrcTy = cast<IntegerType>(I->getOperand(0)->getType()); APInt NewBits(APInt::getAllOnesValue(BitWidth).shl(SrcTy->getBitWidth())); - Mask &= SrcTy->getMask().zext(BitWidth); + Mask &= SrcTy->getMask().zextOrTrunc(BitWidth); ComputeMaskedBits(I->getOperand(0), Mask, KnownZero, KnownOne, Depth+1); assert((KnownZero & KnownOne) == 0 && "Bits known to be one AND zero?"); |
