diff options
Diffstat (limited to 'llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp')
| -rw-r--r-- | llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp b/llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp index b79f55e..216177f 100644 --- a/llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp +++ b/llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp @@ -1097,7 +1097,9 @@ Instruction *InstCombiner::visitSDiv(BinaryOperator &I) { if (MaskedValueIsZero(Op0, Mask, 0, &I)) { if (MaskedValueIsZero(Op1, Mask, 0, &I)) { // X sdiv Y -> X udiv Y, iff X and Y don't have sign bit set - return BinaryOperator::CreateUDiv(Op0, Op1, I.getName()); + auto *BO = BinaryOperator::CreateUDiv(Op0, Op1, I.getName()); + BO->setIsExact(I.isExact()); + return BO; } if (match(Op1, m_Shl(m_Power2(), m_Value()))) { |