[llvm-branch-commits] [llvm] [LoopVectorizer] Bundle partial reductions with different extensions (PR #136997)

[Gaëtan Bossu via llvm-branch-commits]

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@@ -2586,22 +2590,21 @@ class VPMulAccumulateReductionRecipe : public VPReductionRecipe {
   VPValue *getVecOp1() const { return getOperand(2); }
 
   /// Return if this MulAcc recipe contains extend instructions.
-  bool isExtended() const { return ExtOp != Instruction::CastOps::CastOpsEnd; }
+  bool isExtended() const {
+    return getVecOp0Info().ExtOp != Instruction::CastOps::CastOpsEnd;
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gbossu wrote:

But could it happen that Op0 is not extended, and Op1 is? (Probably a stupid question because I'm reading this code without prior knowledge about `VPlan` stuff 😄)

https://github.com/llvm/llvm-project/pull/136997