https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88152
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Created attachment 45114 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=45114&action=edit gcc9-pr88152.patch Untested patch to do similar comparison transformations we do for comparisons against INTEGER_CSTs also for comparisons against uniform_vector_p VECTOR_CSTs.