[llvm-branch-commits] [llvm] [LV] Bundle partial reductions inside VPExpressionRecipe (PR #147302)

[Florian Hahn via llvm-branch-commits]

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@@ -2532,7 +2533,10 @@ class VPPartialReductionRecipe : public VPReductionRecipe {
         Opcode(Opcode), VFScaleFactor(ScaleFactor) {
     [[maybe_unused]] auto *AccumulatorRecipe =
         getChainOp()->getDefiningRecipe();
-    assert((isa<VPReductionPHIRecipe>(AccumulatorRecipe) ||
+    // When cloning as part of a VPExpressionRecipe, the chain op could have
+    // been removed from the plan and so doesn't have a defining recipe.
+    assert((!AccumulatorRecipe ||
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fhahn wrote:

Hmm, the chain-op won't be removed from the plan, but the operand in the expression recipe will be replaced by a temporary VPValue, right?

https://github.com/llvm/llvm-project/pull/147302