https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104930
--- Comment #2 from Kewen Lin <linkw at gcc dot gnu.org> --- It's regressed from r12-5752-gd08236359eb229, in the new bif infrastructure we don't use the type opaque_V4SI_type_node for prototype of overloaded built-in functions any more.