http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57202
--- Comment #3 from Marc Glisse <glisse at gcc dot gnu.org> 2013-05-08 08:02:23 UTC --- http://gcc.gnu.org/ml/gcc-patches/2013-04/msg00740.html that patch (or maybe a later iteration) is waiting for reviews but I think it is what this PR is asking for.
