https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64893
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Ok, the problem is related to sizeof. Let me see if I can make the gimplifier fold the statements or something similar. Note we might want to change the first argument of __builtin_aarch64_im_lane_boundsi to size_t to get rid of the case so it is easy to handle in fold.