================
@@ -15338,6 +15339,73 @@ void Sema::CheckThreadLocalForLargeAlignment(VarDecl
*VD) {
}
}
+/// Process a variable definition whose mangled name may be listed in
+/// '-mloadtime-comment-vars=': attach an implicit attribute to supported
+/// string variables so CodeGen preserves them as loadtime identifying
+/// strings, and warn when a named variable cannot be preserved.
+static void checkLoadTimeCommentVar(Sema &S, VarDecl *VD) {
+ // Only variables defined at file, namespace, or class scope participate;
+ // anything else (e.g. a function-local static) is silently ignored. A
+ // template has no object-file symbol of its own, only its instantiations
+ // do, so template patterns are ignored as well.
+ if (!VD->isFileVarDecl() && !VD->isStaticDataMember())
+ return;
+ if (VD->isTemplated())
+ return;
+ if (VD->isThisDeclarationADefinition(S.Context) != VarDecl::Definition)
+ return;
+
+ // Only character pointers/arrays with an initializer are supported; a
+ // matched variable of any other form (int, struct, no initializer, ...) is
+ // silently ignored.
+ QualType Ty = VD->getType();
+ const PointerType *PT = Ty->getAs<PointerType>();
----------------
tonykuttai wrote:
Done. Now uses `Ty->getAsCanonical<PointerType>()`, and the element-type check
is `hasSameUnqualifiedType(Pointee, Context.CharTy)` and only plain char
matches. Tests added
https://github.com/llvm/llvm-project/pull/187986
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