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

[Valery Pykhtin via llvm-commits]

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@@ -1524,9 +1582,6 @@ bool PreRARematStage::sinkTriviallyRematInsts(const GCNSubtarget &ST,
     MachineInstr *MI = Entry.first;
     MachineInstr *OldMI = Entry.second;
 
-    // Remove OldMI from BBLiveInMap since we are sinking it from its MBB.
-    DAG.BBLiveInMap.erase(OldMI);
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vpykhtin wrote:

I'm not sure why you removed this line and added DAG.BBLiveInMap = DAG.getBBLiveInMap()  below

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