http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53135
--- Comment #8 from Alexandre Oliva <aoliva at gcc dot gnu.org> 2012-08-07 18:47:16 UTC --- For those running into the problem, analternative to patching GCC isto reduce the maximum expression depth for var-traking with --param max-vartrack-expr-depth=11