GNU bug report logs - #58558
29.0.50; re-search-forward is slow in some buffers

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From: Ihor Radchenko <yantar92 <at> posteo.net>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 58558 <at> debbugs.gnu.org, acm <at> muc.de, larsi <at> gnus.org, Stefan Monnier <monnier <at> iro.umontreal.ca>
Subject: bug#58558: 29.0.50; re-search-forward is slow in some buffers
Date: Wed, 12 Apr 2023 14:42:39 +0000

Eli Zaretskii <eliz <at> gnu.org> writes:

> Also, that code was there in Emacs 28 as well, so how come it suddenly
> has this effect now?

Random guess: cc-langs.el loads cc-defs via (cc-require 'cc-defs).
`cc-require' is doing something extremely tricky with byte compilation.
May Emacs 29 have some subtle changes in byte code that could have an influence?

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Ihor Radchenko // yantar92,
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