Quartus Primeツールにて、”safe state machine”のオプション設定があります。この機能をOFFにしていた場合、どういったデメリットがありますか？ 同期回路にて組んでおけば安全であると考えますが、それでもこの設定を有効にしておいた方がいいのでしょうか？

With the Quartus Prime tool, there is an option setting of "safe state machine". What disadvantages are there if this function is turned off?

I think that it is safe to organize it with a synchronous circuit, but is it still better to keep this setting effective?

A safe state machine in Quartus is a state machine that if it reaches an illegal state (for any exceptional reason, such as glitch, metastability, etc.), it will reach the reset state after one clock cycle.

Thank you for your response.

It seems better to use it for risk avoidance.