http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55126
--- Comment #2 from rbmj at verizon dot net 2012-10-30 01:04:08 UTC --- git bisect reports that commit that introduced the regression is svn: 192488 (or git: 584abc984ad...). I don't know enough about the codebase to easily tell where gcc is segfaulting, but hopefully somebody whose familiar with the internals can quickly see what happened.