http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48326
--- Comment #3 from Mikael Pettersson <mikpe at it dot uu.se> 2013-03-30 11:59:19 UTC --- I can reproduce the initial bug with gcc 4.4.7, 4.5.3, 4.6.3, and 4.7.0, but not with 4.5.4, 4.6-20130322, 4.7.1, or 4.7.2.