[llvm] [VPlan] Replace ExtractLast(Elem|LanePerPart) with ExtractLast(Lane/Part) (PR #164124)

[Florian Hahn via llvm-commits]

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@@ -1330,11 +1326,8 @@ static void simplifyRecipe(VPRecipeBase &R, VPTypeAnalysis &TypeInfo) {
     return Def->replaceAllUsesWith(A);
   }
 
-  if (Plan->getUF() == 1 &&
-      match(Def, m_ExtractLastLanePerPart(m_VPValue(A)))) {
-    return Def->replaceAllUsesWith(
-        Builder.createNaryOp(VPInstruction::ExtractLastElement, {A}));
-  }
+  if (Plan->getUF() == 1 && match(Def, m_ExtractLastPart(m_VPValue(A))))
+    return Def->replaceAllUsesWith(A);
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fhahn wrote:

I added the TODO to ::execute

https://github.com/llvm/llvm-project/pull/164124