[llvm] [VPlan] Impl VPlan-based pattern match for ExtendedRed and MulAccRed (PR #113903)

[Elvis Wang via llvm-commits]

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@@ -9515,6 +9458,29 @@ LoopVectorizationPlanner::tryToBuildVPlanWithVPRecipes(VFRange &Range) {
   // Adjust the recipes for any inloop reductions.
   adjustRecipesForReductions(Plan, RecipeBuilder, Range.Start);
 
+  // Transform recipes to abstract recipes if it is leagal and beneficial and
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ElvisWang123 wrote:

Done, thanks.

https://github.com/llvm/llvm-project/pull/113903