http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53266
--- Comment #9 from Segher Boessenkool <segher at gcc dot gnu.org> 2012-09-26 06:43:41 UTC --- Yes, mainline is SVN trunk. There are weekly snapshots on http://gcc.gnu.org/snapshots.html (just get the newest one, it should be more than new enough for this).