https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91683
--- Comment #15 from rguenther at suse dot de <rguenther at suse dot de> --- On September 10, 2019 3:50:46 AM GMT+02:00, "wilson at gcc dot gnu.org" <gcc-bugzi...@gcc.gnu.org> wrote: >https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91683 > >--- Comment #14 from Jim Wilson <wilson at gcc dot gnu.org> --- >> 3) Do we want to prohibit calling gen_reg_rtx during combine? Why >did >> we want it, before? > >Prohibiting gen_reg_rtx calls here would have helped find the bugs I'm >fixing >now. I've got a hack to do this to find the remaining bugs I need to >fix. > >I don't know why anyone would want it before. I'm not sure if this >ever worked >right. I still don't understand. The rtx are not relocated. The only thing is the address of the slot of the regno to rtx map.
