https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101539
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Created attachment 51219 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51219&action=edit gcc12-pr101539-2.patch Untested patch for the __is_pointer_interconvertible_base_of trait and __builtin_is_pointer_interconvertible_with_class. This part doesn't seem to suffer any issues on the standard side unlike the layout-compatible stuff, but I'm not sure I understood everything right.
