https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94500
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Created attachment 48214 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48214&action=edit gcc8-pr94500.patch Untested fix. Richi's r265004 commit has been an optimization which essentially causes ix86_expand_reduc not to be called with these modes (but the bug is still there if it were ever called with those modes).
