http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56165
--- Comment #17 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-02-05 13:01:25 UTC --- Ah, since PR53383 you can actually use -mno-sse -mpreferred-stack-boundary=3 on x86_64, but only with -mno-sse. Of course it is an ABI incompatible change, so you need to rebuild everything with that option.
