http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50785
--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-10-19 12:43:59 UTC --- test::value is an lvalue, binding a reference to it is an odr-use (1*test::value) produces an rvalue, the reference is not bound to test::value, so it is not odr-used