https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67882
--- Comment #8 from Martin Sebor <msebor at gcc dot gnu.org> --- See the discussion of the __builtin_offsetof (FA5_7, a5_7 [5][0]) case below: https://gcc.gnu.org/ml/gcc-patches/2015-10/msg01993.html
