------- Comment #4 from navinkumar+bugs at gmail dot com 2009-04-30 19:22 ------- Since std::is_empty<_2_emptyB>::value && std::is_empty<_2_emptyA>::value (as verified by the static assertions), GCC should not treat _2_emptyB differently from _2_emptyA when computing the structure's layout. The IA64 C++ ABI only talks about pod, data, and empty structures, so the ABI specification does not distinguish between _2_emptyB and _2_emptyA.
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39981
