http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52456
--- Comment #4 from Paolo Carlini <paolo.carlini at oracle dot com> 2012-03-02 17:00:17 UTC --- Indeed (sorry) the "troublesome" (ie, leading to FAIL) symbols seem the <added> ones, on x86_64-linux too we have two <undesignated> and no FAIL.
