http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55970
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> 2013-01-14 17:34:28 UTC --- (In reply to comment #3) Maybe we should warn about these cases just like we warn for the other unspecified behavior which causes undefined behavior (aka a+=a+1).
