diff options
| -rw-r--r-- | llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp b/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp index e641acbfbd9..d8824b473a6 100644 --- a/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp +++ b/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp @@ -852,7 +852,7 @@ Value *InstCombiner::SimplifyShrShlDemandedBits(Instruction *Shr, unsigned ShrAmt = ShrOp1.getZExtValue(); KnownOne.clearAllBits(); - KnownZero = APInt::getBitsSet(KnownZero.getBitWidth(), 0, ShlAmt-1); + KnownZero = APInt::getLowBitsSet(KnownZero.getBitWidth(), ShlAmt - 1); KnownZero &= DemandedMask; APInt BitMask1(APInt::getAllOnesValue(BitWidth)); |
