http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59175
--- Comment #6 from Uroš Bizjak <ubizjak at gmail dot com> --- (In reply to H.J. Lu from comment #5) > It failed when gcc is configured with --with-arch=core2 --with-cpu=atom. > It can be reproduced with -mtune=atom. Probably -mtune=generic is needed in options.