https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111067
--- Comment #9 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Iain Sandoe from comment #7) > So I am actually asking > - if the extension actually has any useful meaning? YES it does. Especially when it comes to the ability to reduce space used. https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2023/p2752r2.html is the link to the paper that is referenced as the notion for the extension. I think this is a minor issue from the point of view of the testcase can just be xfailed on darwin really. Though I suspect the backend will/should be fixed to mark the alias as being the same symbols really.