From: John Wiegley <johnw@newartisans.com>
To: emacs-devel@gnu.org
Subject: Re: Inefficiency in Bgotoifnil byte-code instruction
Date: Thu, 28 Jun 2012 16:24:55 -0500 [thread overview]
Message-ID: <m2mx3ni0yg.fsf@newartisans.com> (raw)
In-Reply-To: <E1SkERI-00006Q-0C@fencepost.gnu.org> (Richard Stallman's message of "Thu, 28 Jun 2012 09:07:16 -0400")
>>>>> Richard Stallman <rms@gnu.org> writes:
> 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.
I hadn't considered that, and I think you're exactly right.
John
prev parent reply other threads:[~2012-06-28 21:24 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
2012-06-28 21:24 ` John Wiegley [this message]
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