[llvm] [AMDGPU] Replace dynamic VGPR feature with attribute (PR #133444)

[Shilei Tian via llvm-commits]

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@@ -1498,7 +1508,8 @@ bool OccInitialScheduleStage::shouldRevertScheduling(unsigned WavesAfter) {
 bool UnclusteredHighRPStage::shouldRevertScheduling(unsigned WavesAfter) {
   // If RP is not reduced in the unclustered reschedule stage, revert to the
   // old schedule.
-  if ((WavesAfter <= PressureBefore.getOccupancy(ST) &&
+  if ((WavesAfter <=
+           PressureBefore.getOccupancy(ST, DAG.MFI.isDynamicVGPREnabled()) &&
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shiltian wrote:

Is this on purpose to use `DAG.MFI.isDynamicVGPREnabled()` here, which effectively converts to 0/1?

https://github.com/llvm/llvm-project/pull/133444