diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Analysis/InstructionSimplify.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/Analysis/InstructionSimplify.cpp b/llvm/lib/Analysis/InstructionSimplify.cpp index 2eed5fc6418..e095e95935b 100644 --- a/llvm/lib/Analysis/InstructionSimplify.cpp +++ b/llvm/lib/Analysis/InstructionSimplify.cpp @@ -1109,6 +1109,10 @@ static Value *SimplifySRemInst(Value *Op0, Value *Op1, const SimplifyQuery &Q, if (match(Op1, m_SExt(m_Value(X))) && X->getType()->isIntOrIntVectorTy(1)) return ConstantInt::getNullValue(Op0->getType()); + // If the two operands are negated, return 0. + if (isKnownNegation(Op0, Op1)) + return ConstantInt::getNullValue(Op0->getType()); + return simplifyRem(Instruction::SRem, Op0, Op1, Q, MaxRecurse); } |
