[clang] [clang] Add per-global code model attribute (PR #72078)

[via cfe-commits]

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@@ -3369,6 +3369,23 @@ static void handleSectionAttr(Sema &S, Decl *D, const ParsedAttr &AL) {
   }
 }
 
+static void handleCodeModelAttr(Sema &S, Decl *D, const ParsedAttr &AL) {
+  StringRef Model;
+  SourceLocation LiteralLoc;
+  // Check that it is a string.
+  if (!S.checkStringLiteralArgumentAttr(AL, 0, Model, &LiteralLoc))
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tschuett wrote:

You should report an error. If I set the code model to 5, there will be no errors and it will be silently set to Small.

https://github.com/llvm/llvm-project/pull/72078