http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49779
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-07-18 17:47:49 UTC --- (In reply to comment #2) > An extension that is still supported by GCC, right? Yes but the semantics are not well defined in this area IIRC.