Subject: bug#75593: 31.0.50; Faulty macro kills Emacs

From: Stefan Monnier <[email-masked]>
Date: Thu, 16 Jan 2025 13:17:17 -0500

> IOW, can we prevent crashes in a way that is cheap in production
> builds, since 'eval' is quite a hotspot?

I would actually be surprised if `Feval` is a hotspot.

AFAIK `eval_sub` is sometimes a hotspot (tho only when running
non-compiled code, which *should* be somewhat infrequent), but I don't
think `Feval` is.

        Stefan