[llvm] [VPlan] Fix header masks in EVL tail folding (PR #150202)

[Florian Hahn via llvm-commits]

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@@ -2267,12 +2271,28 @@ static void transformRecipestoEVLRecipes(VPlan &Plan, VPValue &EVL) {
     }
   }
 
+  Type *EVLType = TypeInfo.inferScalarType(&EVL);
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fhahn wrote:

hmm, I think I am still missing why we first need to remove the recipes and then update the header mask and manually remove them?

https://github.com/llvm/llvm-project/pull/150202