http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56341
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> 2013-02-18 11:20:43 UTC --- There is now better ways of implementing -fstrict-volatile-bitfields which I repeatedly told the arm people. Not for 4.6, but for 4.7 and trunk.