[llvm] [LV] Bundle sub reductions into VPExpressionRecipe (PR #147255)

[Sam Tebbs via llvm-commits]

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@@ -3126,14 +3127,15 @@ tryToMatchAndCreateMulAccumulateReduction(VPReductionRecipe *Red,
   };
 
   VPValue *VecOp = Red->getVecOp();
+  VPValue *Mul = VecOp;
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SamTebbs33 wrote:

Agreed, I think this is left over from when we were checking for a negation. Done.

https://github.com/llvm/llvm-project/pull/147255