https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113094
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- I suspect FIRST_PSEUDO_REGISTER should really have been LAST_VIRTUAL_REGISTER in some places ... VIRTUAL_REGISTERs are still psedudo registers but not used post instantiate_virtual_regs pass.
