Up to three.
1) Frasca will probably qualify through the all-around.
2) Ait Said (still rings) must finish in the top 3 among nations that did not qualify a team. So far we have Turkey, Greece and probably Italy in the final; if Italy doesn't qualify a team, that makes 4 eligible gymnasts ( Ait Said, Çolak, Petrounias and Lodadio) for 3 quotas. And tomorrow we'll probably have qualifying for the final, what makes it even more confusing.
3) Tommasone could qualify through the pommel horse, if he makes it to the final (he's currently 4th). Once again, we should worry about nations without a qualified team, and is already one of them. Probably or or even could qualify and make things confusing too.