[llvm] [VPlan] Fix VPTypeAnalysis cache clobbering in EVL transform (PR #120252)

Florian Hahn via llvm-commits llvm-commits at lists.llvm.org
Tue Dec 17 09:12:01 PST 2024


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@@ -1565,10 +1567,17 @@ static void transformRecipestoEVLRecipes(VPlan &Plan, VPValue &EVL) {
         VPValue *CurVPV = CurRecipe->getVPSingleValue();
         CurVPV->replaceAllUsesWith(NewRecipe->getVPSingleValue());
       }
-      CurRecipe->eraseFromParent();
+      // Defer erasing recipes till the end so that we don't invalidate the
+      // VPTypeAnalysis cache
----------------
fhahn wrote:

```suggestion
      // VPTypeAnalysis cache.
```

https://github.com/llvm/llvm-project/pull/120252


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