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From: Richard Stallman <rms@gnu.org>
To: "John Wiegley" <johnw@newartisans.com>
Cc: emacs-devel@gnu.org
Subject: Re: Inefficiency in Bgotoifnil byte-code instruction
Date: Thu, 28 Jun 2012 09:07:16 -0400	[thread overview]
Message-ID: <E1SkERI-00006Q-0C@fencepost.gnu.org> (raw)
In-Reply-To: <m2ehp0nnq7.fsf@newartisans.com> (johnw@newartisans.com)

    My recommendation is that we split these into two ops: Bgotoifnil and
    Bgotoifnonnil, which use only FETCH and a positive/negative offset from the
    current pc, and Bgotoifnil2 and Bgotoifnonnil2 which use the old logic
    (FETCH2, and an absolute offset from the start of the bytecode stream).

This incompatibility might be more trouble than it is worth.

--
Dr Richard Stallman
President, Free Software Foundation
51 Franklin St
Boston MA 02110
USA
www.fsf.org  www.gnu.org
Skype: No way! That's nonfree (freedom-denying) software.
  Use Ekiga or an ordinary phone call



  parent reply	other threads:[~2012-06-28 13:07 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-28  3:01 Inefficiency in Bgotoifnil byte-code instruction John Wiegley
2012-06-28  4:38 ` Stefan Monnier
2012-06-29 16:39   ` Tom Tromey
2012-06-30  4:07     ` Stefan Monnier
2012-07-02 19:17       ` Tom Tromey
2012-07-03 13:19         ` Stefan Monnier
2012-07-03 14:45           ` Tom Tromey
2012-07-03 16:58             ` Stefan Monnier
2012-07-03 17:22               ` Tom Tromey
2012-07-03 17:53                 ` Aurélien Aptel
2012-07-03 19:24                   ` Tom Tromey
2012-07-03 23:02                 ` Stefan Monnier
2012-07-06 20:22                   ` Tom Tromey
2012-07-06 21:39                     ` Stefan Monnier
2012-07-09 19:12                   ` Tom Tromey
2012-07-10 10:31                     ` Stefan Monnier
2012-07-03 19:52             ` John Wiegley
2012-07-06 20:27           ` Tom Tromey
2012-07-02  3:51     ` John Wiegley
2012-07-02 14:08       ` Tom Tromey
2012-06-28  4:41 ` Stefan Monnier
2012-06-28 13:07 ` Richard Stallman [this message]
2012-06-28 21:24   ` John Wiegley

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