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

[Pierre van Houtryve via llvm-commits]

================
@@ -819,40 +851,50 @@ void AMDGPUAsmPrinter::getSIProgramInfo(SIProgramInfo &ProgInfo,
         }
       }
     }
-    ProgInfo.NumSGPR = std::max(ProgInfo.NumSGPR, WaveDispatchNumSGPR);
-    ProgInfo.NumArchVGPR = std::max(ProgInfo.NumVGPR, WaveDispatchNumVGPR);
-    ProgInfo.NumVGPR =
-        Info.getTotalNumVGPRs(STM, Info.NumAGPR, ProgInfo.NumArchVGPR);
+    ProgInfo.NumSGPR = AMDGPUVariadicMCExpr::createMax(
+        {ProgInfo.NumSGPR, CreateExpr(WaveDispatchNumSGPR)}, Ctx);
+
+    ProgInfo.NumArchVGPR = AMDGPUVariadicMCExpr::createMax(
+        {ProgInfo.NumVGPR, CreateExpr(WaveDispatchNumVGPR)}, Ctx);
+
+    ProgInfo.NumVGPR = AMDGPUVariadicMCExpr::createTotalNumVGPR(
+        STM.hasGFX90AInsts(), ProgInfo.NumAccVGPR, ProgInfo.NumArchVGPR, Ctx);
   }
 
   // Adjust number of registers used to meet default/requested minimum/maximum
   // number of waves per execution unit request.
-  ProgInfo.NumSGPRsForWavesPerEU = std::max(
-    std::max(ProgInfo.NumSGPR, 1u), STM.getMinNumSGPRs(MFI->getMaxWavesPerEU()));
-  ProgInfo.NumVGPRsForWavesPerEU = std::max(
-    std::max(ProgInfo.NumVGPR, 1u), STM.getMinNumVGPRs(MFI->getMaxWavesPerEU()));
+  ProgInfo.NumSGPRsForWavesPerEU = AMDGPUVariadicMCExpr::createMax(
+      {ProgInfo.NumSGPR, CreateExpr(1ul),
+       CreateExpr(STM.getMinNumSGPRs(MFI->getMaxWavesPerEU()))},
----------------
Pierre-vh wrote:

nit: put `MFI->getMaxWavesPerEU()` in a variable?

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