[llvm] MCExpr-ify SIProgramInfo (PR #88257)

[Janek van Oirschot via llvm-commits]

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@@ -61,6 +65,21 @@ void AMDGPUVariadicMCExpr::printImpl(raw_ostream &OS,
   case AGVK_Max:
     OS << "max(";
     break;
+  case AGVK_ExtraSGPRs:
+    OS << "extrasgprs(";
+    break;
+  case AGVK_TotalNumVGPRs:
+    OS << "totalnumvgprs(";
+    break;
+  case AGVK_TotalNumVGPRs90A:
+    OS << "totalnumvgprs90a(";
+    break;
+  case AGVK_AlignTo:
+    OS << "alignto(";
+    break;
+  case AGVK_Occupancy:
+    OS << "occupancy(";
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JanekvO wrote:

Yes, it seems to be used only for comments and remarks. However, there is a check in `getSIProgramInfo` on this occupancy that may error out of compilation.

https://github.com/llvm/llvm-project/pull/88257