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From: Vibhav Pant <vibhavp@gmail.com>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: "emacs-devel@gnu.org" <emacs-devel@gnu.org>
Subject: Re: [PATCH]: Add new bytecode op `switch' for implementing branch tables.
Date: Tue, 7 Feb 2017 14:15:18 +0530	[thread overview]
Message-ID: <CA+T2Sh1e=bAy-a_NyYjq5zMsoHcKA_cnwzux+exyjpbX2rw5-Q@mail.gmail.com> (raw)
In-Reply-To: <jwvzihzyxyy.fsf-monnier+gmane.emacs.devel@gnu.org>

On Tue, Feb 7, 2017 at 12:00 AM, Stefan Monnier
<monnier@iro.umontreal.ca> wrote:
> Hmm... so goto-if-nil is never used any more?  Aren't there cases where
> byte-switch results in slower code than goto-if-nil?

Once linear search for gethash when the number of keys are small is
implemented, byte-switch should still be faster, as all byte-goto-if-nil
and byte-goto-if-nil-else-pop bytecode is "replaced" with native linear
search code.

-- 
Vibhav Pant
vibhavp@gmail.com



  reply	other threads:[~2017-02-07  8:45 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-06 17:50 [PATCH]: Add new bytecode op `switch' for implementing branch tables Vibhav Pant
2017-02-06 18:30 ` Stefan Monnier
2017-02-07  8:45   ` Vibhav Pant [this message]
2017-02-07 14:41     ` Stefan Monnier
     [not found]       ` <CA+T2Sh3N09WGoHtNL3BbptsKA1ZdwWedTNDd0vmeBe0fTO5a1g@mail.gmail.com>
     [not found]         ` <CA+T2Sh2sa6=WOvyePzL_ACR0Nw=jTnZze_xXFcvL=22OURP=ZA@mail.gmail.com>
2017-02-07 15:21           ` Vibhav Pant
2017-02-07 13:50   ` Vibhav Pant
2017-02-07 15:56     ` Clément Pit-Claudel
2017-02-08 13:38       ` Vibhav Pant
2017-02-08 16:21         ` Vibhav Pant
2017-02-08 17:46           ` Vibhav Pant
2017-02-09 13:21           ` Stefan Monnier
2017-02-08 17:56         ` Eli Zaretskii
2017-02-23  4:35           ` Compiled code in Emacs-26 will fail in Emacs-25 if use pcase [was: Add new bytecode op `switch' for implementing branch tables.] Tino Calancha
2017-02-23  8:36             ` Richard Copley
2017-02-23 10:12               ` Tino Calancha
2022-07-04 12:24               ` Vibhav Pant
2017-02-23 13:39             ` Stefan Monnier
2017-02-23 14:33               ` Kaushal Modi
2017-02-23 15:10                 ` Stefan Monnier
2022-07-02 20:31                   ` Robert Weiner
2022-07-02 21:28                     ` Stefan Monnier
     [not found]               ` <CA+T2Sh29UhuNrhRZG=PPQbYYHtONXwyb8dX4rBVLmwdORLELhg@mail.gmail.com>
2017-02-23 17:50                 ` Vibhav Pant
2017-04-11 17:40               ` Compiled code in Emacs-26 will fail in Emacs-25 if use pcase Lars Brinkhoff
2017-02-23 16:15             ` Compiled code in Emacs-26 will fail in Emacs-25 if use pcase [was: Add new bytecode op `switch' for implementing branch tables.] raman
2017-02-23 17:24               ` Drew Adams
2017-02-23 17:50                 ` T.V Raman
2017-02-23 18:02                   ` Drew Adams
2017-02-23 18:24                     ` T.V Raman
2017-02-23 19:00                       ` Drew Adams
2017-02-24  2:06                       ` defsubst VS defun or defmacro [was RE: Compiled code in Emacs-26 will fail in Emacs-25 if use pcase] Tino Calancha
2017-02-24  3:14                         ` Eric Abrahamsen
2017-02-24  3:56                           ` raman
2017-02-24  4:20                             ` Eric Abrahamsen
2017-02-24  3:51                         ` raman
2017-02-09 17:32         ` [PATCH]: Add new bytecode op `switch' for implementing branch tables Clément Pit-Claudel
2017-02-09 19:15         ` Clément Pit-Claudel
2017-02-10  4:12           ` Vibhav Pant
2017-02-10  4:17             ` Clément Pit-Claudel
2017-02-10  5:03               ` Vibhav Pant
2017-02-10  6:07                 ` Stefan Monnier
2017-02-10 13:51                   ` Vibhav Pant
2017-02-10 15:12                     ` Stefan Monnier
2017-02-10 17:59                       ` Vibhav Pant
2017-02-10 18:25                         ` Vibhav Pant
2017-02-10 20:47                           ` Paul Eggert
2017-02-10 20:58                             ` Stefan Monnier
2017-02-11 15:07                             ` Vibhav Pant
2017-02-12  3:10                               ` Vibhav Pant
2017-02-13  7:18                                 ` Vibhav Pant
2017-02-09 16:37       ` Vibhav Pant
2017-02-06 19:32 ` Eli Zaretskii
2017-02-07 14:26   ` Vibhav Pant
2017-02-07 16:14     ` Eli Zaretskii

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