diff options
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/ExpandReductions.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/ExpandReductions.cpp b/llvm/lib/CodeGen/ExpandReductions.cpp index f44d89156b6..34858883298 100644 --- a/llvm/lib/CodeGen/ExpandReductions.cpp +++ b/llvm/lib/CodeGen/ExpandReductions.cpp @@ -118,9 +118,11 @@ bool expandReductions(Function &F, const TargetTransformInfo *TTI) { } if (!TTI->shouldExpandReduction(II)) continue; + FastMathFlags FMF = + isa<FPMathOperator>(II) ? II->getFastMathFlags() : FastMathFlags{}; Value *Rdx = IsOrdered ? getOrderedReduction(Builder, Acc, Vec, getOpcode(ID), MRK) - : getShuffleReduction(Builder, Vec, getOpcode(ID), MRK); + : getShuffleReduction(Builder, Vec, getOpcode(ID), MRK, FMF); II->replaceAllUsesWith(Rdx); II->eraseFromParent(); Changed = true; |
