https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120207
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- It was never used except for print_rtl_single . Added with https://inbox.sourceware.org/gcc-patches/CABu31nMr3UPWBjGMCKqZ-EhgJoEZZFXx9h=9lry2o5su1ek...@mail.gmail.com/ It was going to be used in https://inbox.sourceware.org/gcc-patches/433c36f2.5040...@naturalbridge.com/ (which is an earlier patch).
