[llvm] [clang] [clang-tools-extra] [AMDGPU] Fix GCNUpwardRPTracker. (WIP) (PR #71186)

[Valery Pykhtin via llvm-commits]

================
@@ -128,14 +128,7 @@ class GCNRPTracker {
 
   void clearMaxPressure() { MaxPressure.clear(); }
 
-  GCNRegPressure getPressure() const { return CurPressure; }
-
-  // returns MaxPressure, resetting it
-  decltype(MaxPressure) moveMaxPressure() {
-    auto Res = MaxPressure;
-    MaxPressure.clear();
-    return Res;
-  }
+  const GCNRegPressure &getPressure() const { return CurPressure; }
----------------
vpykhtin wrote:

Done.

https://github.com/llvm/llvm-project/pull/71186