[llvm] [AMDGPU] Refactor several functions for merging with downstream work. (PR #110562)

[Gang Chen via llvm-commits]

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@@ -310,7 +310,14 @@ class WaitcntBrackets {
   bool counterOutOfOrder(InstCounterType T) const;
   void simplifyWaitcnt(AMDGPU::Waitcnt &Wait) const;
   void simplifyWaitcnt(InstCounterType T, unsigned &Count) const;
-  void determineWait(InstCounterType T, int RegNo, AMDGPU::Waitcnt &Wait) const;
+
+  void determineWait(InstCounterType T, RegInterval Interval,
+                     AMDGPU::Waitcnt &Wait) const;
+  void determineWait(InstCounterType T, int RegNo,
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cmc-rep wrote:

RegNo is the index to the register scoreboard inside WaitcntBrackets structure, not MCPhysReg

https://github.com/llvm/llvm-project/pull/110562