[llvm-branch-commits] [llvm] [AMDGPU][SIInsertWaitcnts][NFC] Implement obsolete() (PR #193384)

[Matt Arsenault via llvm-branch-commits]

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@@ -831,6 +833,9 @@ class WaitcntBrackets {
         LB = std::max(LB, UB - Remaining);
       }
       void clear() { LB = UB; }
+      /// \returns true if \p Score is older than the first tracked score of
+      /// this counter.
+      bool obsolete(unsigned Score) const { return Score <= LB; }
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arsenm wrote:

Obsolete doesn't seem like the right name for this 

https://github.com/llvm/llvm-project/pull/193384