[Bug c/77946] -Wimplicit-fallthrough=1 ICE: tree check: expected tree that contains ‘decl with visibility’ structure, have ‘label_decl’

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77946

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to Marek Polacek from comment #4)
> (In reply to Jakub Jelinek from comment #3)
> > Thanks.  More reduced (that fails even with -Wimplicit-fallthrough):
> 
> Did you mean without?

No, I meant with, but that it will ICE with any level from 1 to 4 that way.