diff options
Diffstat (limited to 'llvm/lib/Transforms')
| -rw-r--r-- | llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp b/llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp index 0b9128a9f5a..f7b39d98d49 100644 --- a/llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp +++ b/llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp @@ -1368,8 +1368,10 @@ Instruction *InstCombiner::visitURem(BinaryOperator &I) { } // 1 urem X -> zext(X != 1) - if (match(Op0, m_One())) - return CastInst::CreateZExtOrBitCast(Builder.CreateICmpNE(Op1, Op0), Ty); + if (match(Op0, m_One())) { + Value *Cmp = Builder.CreateICmpNE(Op1, ConstantInt::get(Ty, 1)); + return CastInst::CreateZExtOrBitCast(Cmp, Ty); + } // X urem C -> X < C ? X : X - C, where C >= signbit. if (match(Op1, m_Negative())) { |
