diff options
| 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 | a47f60bfafaf73da21c9a396ed0ea84e6a7dde6d (patch) | |
| tree | 1da9bf3279faf56c2fa0006944c0d40b0cc452dc | |
| parent | 032953d74746fa89b62e49b63a38ba6d8827b81a (diff) | |
Fix a bug in function ComputeMaskedBits().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35027 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Transforms/Scalar/InstructionCombining.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp index 02336e59c4..79ad33697c 100644 --- a/lib/Transforms/Scalar/InstructionCombining.cpp +++ b/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?"); |