================
@@ -1980,6 +1981,23 @@ static void handleWeakRefAttr(Sema &S, Decl *D, const
ParsedAttr &AL) {
D->addAttr(::new (S.Context) WeakRefAttr(S.Context, AL));
}
+// Mark alias/ifunc target as used. For C++, we look up the demangled name
+// ignoring parameters. This should handle the majority of use cases while
+// leaveing false positives for namespace scope names and false negatives in
+// the presence of overloads.
+static void markUsedForAliasOrIfunc(Sema &S, Decl *D, const ParsedAttr &AL,
+ StringRef Str) {
+ char *Demangled = llvm::itaniumDemangle(Str, /*ParseParams=*/false);
----------------
nickdesaulniers wrote:
> While we can add S.getASTContext().getCXXABIKind() != TargetCXXABI::Microsoft
> check for downstream users, it doesn't appear to add any value?
If we know the target ABI uses Microsoft mangling, then we should be using
`microsoftDemangle` rather than `itaniumDemangle`. There's also
`llvm::demangle` which can try to figure this out.
https://github.com/llvm/llvm-project/pull/87130
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