https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91425
--- Comment #9 from Andrew Pinski <pinskia at gcc dot gnu.org> --- The biggest issue here is that the both ifcombine (and reassociate) and phiopt does not touch the case where there could be a trapping oeprator to move it and combine it with a previous operator. This could/should be improved.
