[llvm] [AMDGPU] Add MaxMemoryClauseSchedStrategy (PR #114957)

[Matt Arsenault via llvm-commits]

================
@@ -1389,6 +1528,14 @@ bool ILPInitialScheduleStage::shouldRevertScheduling(unsigned WavesAfter) {
   return false;
 }
 
+bool MemoryClauseInitialScheduleStage::shouldRevertScheduling(
+    unsigned WavesAfter) {
+  if (mayCauseSpilling(WavesAfter))
+    return true;
+
+  return false;
----------------
arsenm wrote:

```suggestion
  return mayCauseSpilling(WavesAfter);
```

https://github.com/llvm/llvm-project/pull/114957