http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60336
--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to H.J. Lu from comment #4) > Is this test valid? BTW, clang works fine on x86. No this testcase is not valid at all. See http://gcc.gnu.org/onlinedocs/gcc-4.8.2/gcc/Empty-Structures.html#Empty-Structures where it is documented it is not valid.