The mentioned test cases produce an ICE in reload.c:3737 Attached. Also the preprocessed source for closure_fn3.c
I can not c&p with firefox atm. -- Summary: libffi regression, many.c, closure_fn2/fn3.c with -Os Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: libffi AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: andreast at gcc dot gnu dot org GCC build triplet: x86_64-apple-darwin8 GCC host triplet: x86_64-apple-darwin8 GCC target triplet: x86_64-apple-darwin8 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31507