[llvm] [AMDGPU] Improved register pressure estimates for rescheduling (PR #213116)

[Lucas Ramirez via llvm-commits]

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@@ -1213,3 +1214,83 @@ LLVM_DUMP_METHOD void llvm::dumpMaxRegPressure(MachineFunction &MF,
   }
 }
 #endif
+
+unsigned llvm::estimateGreedyVGPRPressure(
+    MachineBasicBlock::const_iterator RegionBegin,
+    MachineBasicBlock::const_iterator RegionEnd,
+    const GCNRPTracker::LiveRegSet &LiveIns, LiveIntervals &LIS,
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lucas-rami wrote:

Can `LIS` be const?

https://github.com/llvm/llvm-project/pull/213116