http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49107
--- Comment #7 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-05-25 12:16:45 UTC --- To be honest, the behavior vs the original testcase, which just uses pair, can be considered a regression; the reduced one, in Comment #5, fails also with 4.6.
