https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64878
--- Comment #1 from Sebastian Pop <spop at gcc dot gnu.org> --- It fails with -O2 --param max-fsm-thread-paths=10 and does not fail with 9. This is the thread that generates wrong code: Registering FSM jump thread: (102, 6) incoming edge; (5, 128) nocopy;