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.
