[llvm] [VPlan] Introduce ComputeReductionResult VPInstruction opcode. (PR #70253)

[Alexey Bataev via llvm-commits]

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@@ -9199,6 +9071,14 @@ void LoopVectorizationPlanner::adjustRecipesForReductions(
               ? new VPInstruction(Instruction::Select, {Cond, Red, PhiR}, FMFs)
               : new VPInstruction(Instruction::Select, {Cond, Red, PhiR});
       Result->insertBefore(&*Builder.getInsertPoint());
+      for (VPUser *U : Red->users()) {
+        auto *UR = cast<VPRecipeBase>(U);
+        if (UR->getParent()->getParent() == PhiR->getParent()->getParent())
+          continue;
+        assert(cast<VPInstruction>(UR)->getOpcode() ==
+               VPInstruction::ComputeReductionResult);
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alexey-bataev wrote:

Add assertion message

https://github.com/llvm/llvm-project/pull/70253