http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54632
--- Comment #8 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-09-24 09:26:25 UTC --- If it's triggered by GC I suggest to try reducing with --param ggc-min-expand=0 --param ggc-min-heapsize=0 (not that this will make it any faster ;))