diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86ISelLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index cec04547e79..ea4d43bbc8e 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -41986,8 +41986,9 @@ static SDValue combineFOr(SDNode *N, SelectionDAG &DAG, static SDValue combineFMinFMax(SDNode *N, SelectionDAG &DAG) { assert(N->getOpcode() == X86ISD::FMIN || N->getOpcode() == X86ISD::FMAX); - // Only perform optimizations if UnsafeMath is used. - if (!DAG.getTarget().Options.UnsafeFPMath) + // FMIN/FMAX are commutative if no NaNs and no negative zeros are allowed. + if (!DAG.getTarget().Options.NoNaNsFPMath || + !DAG.getTarget().Options.NoSignedZerosFPMath) return SDValue(); // If we run in unsafe-math mode, then convert the FMAX and FMIN nodes |
