[llvm] [VPlan] Extract reverse operation for reverse accesses (PR #146525)

[Mel Chen via llvm-commits]

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@@ -2283,6 +2309,7 @@ static void transformRecipestoEVLRecipes(VPlan &Plan, VPValue &EVL) {
     HeaderMask->replaceAllUsesWith(EVLMask);
     ToErase.push_back(HeaderMask->getDefiningRecipe());
   }
+  convertToEVLReverse(Plan, TypeInfo, *AllOneMask, EVL);
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Mel-Chen wrote:

@lukel97 @fhahn 
7c2493d3a9bb658995291dcbb8ab07a4b36a1da4
The conversion to vp.reverse now uses the new approach. It is no necessary to visit every recipe.

https://github.com/llvm/llvm-project/pull/146525