http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56868
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> 2013-04-07 18:51:00 UTC --- Looks like 0*0 is being considered a null pointer constant.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56868
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> 2013-04-07 18:51:00 UTC --- Looks like 0*0 is being considered a null pointer constant.