[llvm] [VPlan] Also print final VPlan directly before codegen/execute. (PR #82269)

[via llvm-commits]

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@@ -7456,6 +7456,9 @@ LoopVectorizationPlanner::executePlan(
   if (!IsEpilogueVectorization)
     VPlanTransforms::optimizeForVFAndUF(BestVPlan, BestVF, BestUF, PSE);
 
+  BestVPlan.setName("Final VPlan");
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ayalz wrote:

> Perhaps Initial = after initial construction, Optimized = during most VPlan transforms, Final = just before execution?

SGTM. Although the name may be used more persistently to associate a VPlan with the fixed original loop, complemented with optimization decisions (e.g., VF, UF), rather than keep track of which optimizations were processed.

https://github.com/llvm/llvm-project/pull/82269