http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51987
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-01-24 22:40:11 UTC --- Created attachment 26449 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26449 gcc47-pr51987.patch Untested fix.
