The gimple.c patch in http://gcc.gnu.org/ml/gcc-patches/2009-08/msg00770.html causes gcc.c-torture/execute/stdarg-1.c to endlessly recurse in get_alias_set.
-- Summary: cycles with TYPE_CANONICAL and TYPE_MAIN_VARIANT Product: gcc Version: lto Status: UNCONFIRMED Severity: normal Priority: P3 Component: lto AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: rguenth at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41071