https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127705
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
OK, so it seems to me that at least
saved_scc.quick_grow (todo);
is missing. Without that the copy is meaningless, the later iteration doesn't
use it. Adding that shows we do copy (and then access) garbage. And
the memcpy copies from a SLP node, not the array and starting from the wrong
element. So much for completing the missed pieces w/o test coverage.
Fix in testing.
