[llvm] [VPlan] Impl VPlan-based pattern match for ExtendedRed and MulAccRed (PR #113903)

[Florian Hahn via llvm-commits]

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@@ -2347,7 +2373,7 @@ void VPReductionRecipe::print(raw_ostream &O, const Twine &Indent,
   O << " = ";
   getChainOp()->printAsOperand(O, SlotTracker);
   O << " +";
-  if (isa<FPMathOperator>(getUnderlyingInstr()))
+  if (isa_and_nonnull<FPMathOperator>(getUnderlyingValue()))
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fhahn wrote:

as per above, this should use the flags from the recipe if possible.

https://github.com/llvm/llvm-project/pull/113903