[clang] [CIR] Cleanup support for C functions (PR #136854)

[Iris Shi via cfe-commits]

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@@ -47,18 +98,51 @@ class CIRGenFunctionInfo final
 
   // This function has to be CamelCase because llvm::FoldingSet requires so.
   // NOLINTNEXTLINE(readability-identifier-naming)
-  static void Profile(llvm::FoldingSetNodeID &id, CanQualType resultType) {
+  static void Profile(llvm::FoldingSetNodeID &id, RequiredArgs required,
+                      CanQualType resultType,
+                      llvm::ArrayRef<CanQualType> argTypes) {
+    id.AddBoolean(required.getOpaqueData());
     resultType.Profile(id);
+    for (const auto &arg : argTypes)
+      arg.Profile(id);
   }
 
-  void Profile(llvm::FoldingSetNodeID &id) { getReturnType().Profile(id); }
+  // NOLINTNEXTLINE(readability-identifier-naming)
+  void Profile(llvm::FoldingSetNodeID &id) {
+    id.AddBoolean(required.getOpaqueData());
+    getReturnType().Profile(id);
+    for (const auto &i : arguments())
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el-ev wrote:

Yes.

https://github.com/llvm/llvm-project/pull/136854