https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126404
--- Comment #3 from Drea Pinski <pinskia at gcc dot gnu.org> --- Created attachment 65129 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=65129&action=edit Reduced testcase There is a missed optimization after vec_ch: _1 = 0; _18 = (unsigned int) _16; if (_1 != 0) goto <bb 7>; [89.00%] else goto <bb 5>; [11.00%] The 0 comes from the __builtin_add_overflow.
