diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/InstructionCombining.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/Scalar/InstructionCombining.cpp b/llvm/lib/Transforms/Scalar/InstructionCombining.cpp index 1bfce5dfcbd..64f99e34c29 100644 --- a/llvm/lib/Transforms/Scalar/InstructionCombining.cpp +++ b/llvm/lib/Transforms/Scalar/InstructionCombining.cpp @@ -1010,8 +1010,12 @@ Value *InstCombiner::SimplifyDemandedUseBits(Value *V, APInt DemandedMask, // If all of the demanded bits are known to be zero on one side or the // other, turn this into an *inclusive* or. // e.g. (A & C1)^(B & C2) -> (A & C1)|(B & C2) iff C1&C2 == 0 - if ((DemandedMask & ~RHSKnownZero & ~LHSKnownZero) == 0) - return Builder->CreateOr(I->getOperand(0), I->getOperand(1),I->getName()); + if ((DemandedMask & ~RHSKnownZero & ~LHSKnownZero) == 0) { + Instruction *Or = + BinaryOperator::CreateOr(I->getOperand(0), I->getOperand(1), + I->getName()); + return InsertNewInstBefore(Or, *I); + } // If all of the demanded bits on one side are known, and all of the set // bits on that side are also known to be set on the other side, turn this |
