https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60548
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Eric Gallager from comment #2) > (In reply to Andrew Pinski from comment #1) > > This file is never compiled so it is very minor. > > Why does it even exist then? Because it is useful to debug libvtv logs; it is developer of GCC debuging tool rather than user debugging tool.