[llvm] [VPlan] Track VPValue names in VPlan. (PR #81411)

[via llvm-commits]

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@@ -446,6 +461,7 @@ class VPBasicBlock;
 /// VPlan and allows querying the numbering for printing, similar to the
 /// ModuleSlotTracker for IR values.
 class VPSlotTracker {
+  const VPlan *Plan;
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ayalz wrote:

Does VPSlotTracker need Plan?

https://github.com/llvm/llvm-project/pull/81411