https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107348
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Most of the builtins don't do such special magic. It is true that some, mostly newer added, builtins do have such magic, but I think __builtin_classify_type is one of the first builtins added to GCC (certainly GCC 1.36 in 1989 had it). It would be very bad idea to change its behavior all of sudden after 33 years.
