[llvm] [AMDGPU] Optionally Use GCNRPTrackers during scheduling (PR #93090)

[Valery Pykhtin via llvm-commits]

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@@ -70,6 +70,12 @@ class GCNSchedStrategy : public GenericScheduler {
   // Pointer to the current SchedStageID.
   SmallVectorImpl<GCNSchedStageID>::iterator CurrentStage = nullptr;
 
+  // GCN RP Tracker for top-down scheduling
+  mutable GCNDownwardRPTracker TheTracker;
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vpykhtin wrote:

Maybe something like UpTracker and DownTracker for consistency?

https://github.com/llvm/llvm-project/pull/93090