1 files changed, 7 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 411cee3..57fe970 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -7354,6 +7354,13 @@ static unsigned getISDForVPIntrinsic(const VPIntrinsic &VPIntrin) {
     llvm_unreachable(
         "Inconsistency: no SDNode available for this VPIntrinsic!");
 
+  if (*ResOPC == ISD::VP_REDUCE_SEQ_FADD ||
+      *ResOPC == ISD::VP_REDUCE_SEQ_FMUL) {
+    if (VPIntrin.getFastMathFlags().allowReassoc())
+      return *ResOPC == ISD::VP_REDUCE_SEQ_FADD ? ISD::VP_REDUCE_FADD
+                                                : ISD::VP_REDUCE_FMUL;
+  }
+
   return ResOPC.getValue();
 }