https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98094
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> --- Ah, so maybe g:c961e94901eb793b1a18d431a1acf7f682eaf04f which has * gimple-if-to-switch.cc (find_conditions): Require equal precision for low and high of a range.