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

[Pierre van Houtryve via llvm-commits]

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@@ -113,3 +284,53 @@ MCFragment *AMDGPUVariadicMCExpr::findAssociatedFragment() const {
   }
   return nullptr;
 }
+
+/// Allow delayed MCExpr resolve of ExtraSGPRs (in case VCCUsed or FlatScrUsed
+/// are unresolvable but needed for further MCExprs). Derived from
+/// implementation of IsaInfo::getNumExtraSGPRs in AMDGPUBaseInfo.cpp.
+///
+const AMDGPUVariadicMCExpr *AMDGPUVariadicMCExpr::createExtraSGPRs(
+    const MCExpr *VCCUsed, const MCExpr *FlatScrUsed, unsigned MajorVersion,
+    bool hasArchitectedFlatScratch, bool XNACKUsed, MCContext &Ctx) {
+  auto GetConstantExpr = [&Ctx](int64_t Value) {
+    return MCConstantExpr::create(Value, Ctx);
+  };
+
+  return create(AGVK_ExtraSGPRs,
+                {GetConstantExpr(MajorVersion), VCCUsed, FlatScrUsed,
+                 GetConstantExpr(XNACKUsed),
+                 GetConstantExpr(hasArchitectedFlatScratch)},
+                Ctx);
+}
+
+const AMDGPUVariadicMCExpr *AMDGPUVariadicMCExpr::createTotalNumVGPR(
+    bool has90AInsts, const MCExpr *NumAGPR, const MCExpr *NumVGPR,
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Pierre-vh wrote:

`has90AInsts` -> `Has90AInsts`.

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