GNU bug report logs - #23476
25.0.93; Visiting C files on master signals an error

Previous Next

Full log

Message #73 received at 23476 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Alan Mackenzie <acm <at> muc.de>
Cc: rgm <at> gnu.org, 23476 <at> debbugs.gnu.org
Subject: Re: Slowdown in C Mode fontification [Was: bug#23476: 25.0.93;
 Visiting C files on master signals an error]
Date: Tue, 10 May 2016 19:04:28 +0300

> Date: Tue, 10 May 2016 07:51:32 +0000
> Cc: 23476 <at> debbugs.gnu.org, Glenn Morris <rgm <at> gnu.org>
> From: Alan Mackenzie <acm <at> muc.de>
> 
> > Btw, I noticed that CC Mode is quite a bit slower on master than it is
> > on emacs-25 (try searching for "IF_LINT" in xdisp.c), is that related
> > to these changes in any way?
> 
> Whoops!  No, this slowdown is caused by commit
> 89d1776b81ab552192ee41f13ce84ff86bda4556 on 2016-04-25, a fix for bug
> #7918.  The bug was the spurious fontification of something like "for (;
> a * b;)".
> 
> I'll see if I can find a better fix; if not, it would probably be best to
> remove the commit and leave the bug unfixed.

Since this is only on master (right?), there's no rush to revert the
commit, perhaps you or someone else will come up with a solution that
doesn't bring back bug #7918.

Thanks.

Previous Next

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