http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56006
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-01-16 19:06:09 UTC --- The second patch in http://gcc.gnu.org/ml/gcc-patches/2013-01/msg00822.html (which is waiting for Uros' bootstrap/regtest on alpha AFAIK) seems to fix these regressions.