https://gcc.gnu.org/bugzilla/show_bug.cgi?id=25290
--- Comment #10 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Note this needs at least: https://gcc.gnu.org/ml/gcc-patches/2016-11/msg02837.html And a few more match.pd changes to fully replace conditional_replacement. I hope to be able to get a full patch for the next stage 1.