https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111459
--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Andrew Pinski from comment #5) > So i have a patch for cfgcleanup but it causes a regression which looks like > a fake one. I will finish it up later today. Dceing more definitely will > improve compile time and will improve other passes. This had other regressions. Will return to it next week.