https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79932
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Created attachment 40905 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40905&action=edit gcc7-pr79932-2.patch Found further 64 intrinsics that weren't available at -O0.