http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49244
--- Comment #2 from Ryan Lortie <desrt at desrt dot ca> 2011-06-02 23:05:58 UTC --- I'd be happy enough if GCC published a "recommended sequence" or something so that it would be easier to check for this exact sequence... A new user-accessible builtin would also make me happy.
