diff options
Diffstat (limited to 'llvm/lib/Analysis/InstructionSimplify.cpp')
| -rw-r--r-- | llvm/lib/Analysis/InstructionSimplify.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/Analysis/InstructionSimplify.cpp b/llvm/lib/Analysis/InstructionSimplify.cpp index d151b78f04c..22a76a05595 100644 --- a/llvm/lib/Analysis/InstructionSimplify.cpp +++ b/llvm/lib/Analysis/InstructionSimplify.cpp @@ -5091,7 +5091,9 @@ static Value *simplifyBinaryIntrinsic(Function *F, Value *Op0, Value *Op1, if (Op0 == Op1) return Op0; // copysign -X, X --> X - if (match(Op0, m_FNeg(m_Specific(Op1)))) + // copysign X, -X --> -X + if (match(Op0, m_FNeg(m_Specific(Op1))) || + match(Op1, m_FNeg(m_Specific(Op0)))) return Op1; break; case Intrinsic::maxnum: |
