GNU bug report logs - #72279
[PATCH] Non-local exits from outside the lexical scope are caught by cl-block

Previous Next

Full log

View this message in rfc822 format

From: Stefan Kangas <stefankangas <at> gmail.com>
To: Andrea Corallo <acorallo <at> gnu.org>
Cc: 72279 <at> debbugs.gnu.org, Stefan Monnier <monnier <at> iro.umontreal.ca>, Thuna <thuna.cing <at> gmail.com>
Subject: bug#72279: [PATCH] Non-local exits from outside the lexical scope are caught by cl-block
Date: Mon, 3 Mar 2025 18:18:27 -0800

Andrea Corallo <acorallo <at> gnu.org> writes:

> Unused catches are a problem because they bloat bytecode unnecessary,
> also they prevent a number of optimizations in the native compiler as
> well.  Essentially every time you have a landing pad like a catch you
> cannot make assumptions on where you are landing from and what's the
> state of your machine.
>
> It's very important we keep on removing unnecessary catches, that's why
> I was asking in my previous mail.

What constitutes an "unnecessary catch"?  Just unused ones, or all
catches?

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.