https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118766
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Ever confirmed|0 |1 Last reconfirmed| |2025-02-05 Status|UNCONFIRMED |NEW --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- `'type_pack_expansion' not supported by simple_type_specifier` is the issue really. That comes out because the pretty printers don't support it but they should. Note an ICE would be worse which is why it is done this way.