From: Emanuel Berg <incal@dataswamp.org>
To: emacs-devel@gnu.org
Subject: Re: Shrinking the C core
Date: Sun, 27 Aug 2023 05:48:20 +0200 [thread overview]
Message-ID: <87msyd403f.fsf@dataswamp.org> (raw)
In-Reply-To: E1qXnZW-00006Y-S0@fencepost.gnu.org
Alfred M. Szmidt wrote:
>> For example, when I write
>>
>> (when (> x y) (when (> x y) x))
>>
>> I expect GCC JIT to throw away the duplicate comparison.
>
> Why do you expect that? Why do you think it is duplicate?
> Where are the guarantees that > or WHEN don't have
> side-effects? Do you know the exact type of X and Y so you
> can skip a cascade of type checks to pick the right
> comparison operator? Can you use fixnum comparison of
> a specific bit width? Do you need to use bignum comparison?
>
> That is the type of information SBCL knows about, or allows
> the user to specify. Emacs does not have that today [...]
Why can SBCL answer those questions based on the sample code,
and not Emacs? What is it that they have, and we don't?
And why can't we have it as well?
--
underground experts united
https://dataswamp.org/~incal
next prev parent reply other threads:[~2023-08-27 3:48 UTC|newest]
Thread overview: 353+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-09 9:46 Shrinking the C core Eric S. Raymond
2023-08-09 10:55 ` Andreas Schwab
2023-08-09 11:03 ` Eric S. Raymond
2023-08-09 11:29 ` Andreas Schwab
2023-08-09 12:34 ` Po Lu
2023-08-09 15:51 ` Eric S. Raymond
2023-08-09 23:56 ` Po Lu
2023-08-10 1:19 ` Eric S. Raymond
2023-08-10 1:47 ` Christopher Dimech
2023-08-10 1:58 ` Eric Frederickson
2023-08-10 2:07 ` Sam James
2023-08-10 2:44 ` Po Lu
2023-08-10 6:48 ` Eli Zaretskii
2023-08-10 21:21 ` Eric S. Raymond
2023-08-10 21:19 ` Eric S. Raymond
2023-08-10 21:56 ` Emanuel Berg
2023-08-11 5:46 ` Eli Zaretskii
2023-08-11 8:45 ` Emanuel Berg
2023-08-11 11:24 ` Eli Zaretskii
2023-08-11 12:12 ` Emanuel Berg
2023-08-11 13:16 ` Eli Zaretskii
2023-08-10 2:28 ` Po Lu
2023-08-10 4:15 ` Christopher Dimech
2023-08-10 7:44 ` Eli Zaretskii
2023-08-10 21:54 ` Emanuel Berg
2023-08-11 10:27 ` Bignum performance (was: Shrinking the C core) Ihor Radchenko
2023-08-11 12:10 ` Emanuel Berg
2023-08-11 12:32 ` Ihor Radchenko
2023-08-11 12:38 ` Emanuel Berg
2023-08-11 14:07 ` [PATCH] " Ihor Radchenko
2023-08-11 18:06 ` Emanuel Berg
2023-08-11 19:41 ` Ihor Radchenko
2023-08-11 19:50 ` Emanuel Berg
2023-08-12 8:24 ` Ihor Radchenko
2023-08-12 16:03 ` Emanuel Berg
2023-08-13 9:09 ` Ihor Radchenko
2023-08-13 9:49 ` Emanuel Berg
2023-08-13 10:21 ` Ihor Radchenko
2023-08-14 2:20 ` Emanuel Berg
2023-08-14 2:42 ` [PATCH] Re: Bignum performance Po Lu
2023-08-14 4:16 ` Emanuel Berg
2023-08-14 7:15 ` Ihor Radchenko
2023-08-14 7:50 ` Po Lu
2023-08-14 9:28 ` Ihor Radchenko
2023-08-15 14:28 ` Emanuel Berg
2023-08-14 7:20 ` [PATCH] Re: Bignum performance (was: Shrinking the C core) Ihor Radchenko
2023-08-11 22:46 ` Emanuel Berg
2023-08-12 8:30 ` Ihor Radchenko
2023-08-12 16:22 ` Emanuel Berg
2023-08-13 9:12 ` Ihor Radchenko
2023-08-11 14:14 ` Mattias Engdegård
2023-08-11 18:09 ` Emanuel Berg
2023-08-10 23:49 ` Shrinking the C core Eric S. Raymond
2023-08-11 0:03 ` Christopher Dimech
2023-08-11 8:24 ` Immanuel Litzroth
2023-08-11 7:03 ` Eli Zaretskii
2023-08-11 7:19 ` tomas
2023-08-11 10:57 ` Eli Zaretskii
2023-08-10 11:28 ` Dmitry Gutov
2023-08-10 21:26 ` Eric S. Raymond
2023-08-12 2:46 ` Richard Stallman
2023-08-12 3:22 ` Emanuel Berg
2023-08-12 8:33 ` Ihor Radchenko
2023-08-12 15:58 ` Emanuel Berg
2023-08-13 9:13 ` Ihor Radchenko
2023-08-13 9:55 ` Emanuel Berg
2023-08-13 10:23 ` Ihor Radchenko
2023-08-13 20:55 ` Emanuel Berg
2023-08-14 0:13 ` Emanuel Berg
2023-08-12 18:32 ` tomas
2023-08-12 22:08 ` Emanuel Berg
2023-08-12 23:09 ` Emanuel Berg
2023-08-13 5:50 ` tomas
2023-08-13 8:38 ` Emanuel Berg
2023-08-13 15:54 ` [External] : " Drew Adams
2023-08-13 8:00 ` Andreas Schwab
2023-08-13 9:21 ` Emanuel Berg
2023-08-14 7:27 ` Alfred M. Szmidt
2023-08-14 7:36 ` Ihor Radchenko
2023-08-14 7:50 ` Alfred M. Szmidt
2023-08-15 22:57 ` Emanuel Berg
2023-08-16 10:27 ` Ihor Radchenko
2023-08-19 13:29 ` Emanuel Berg
2023-08-20 5:09 ` Ihor Radchenko
2023-08-20 6:51 ` Emanuel Berg
2023-08-20 7:14 ` Ihor Radchenko
2023-08-20 7:52 ` Emanuel Berg
2023-08-20 13:01 ` tomas
2023-08-20 13:12 ` Ihor Radchenko
2023-08-20 8:28 ` Alfred M. Szmidt
2023-08-20 9:29 ` Emanuel Berg
2023-08-20 15:22 ` Alfred M. Szmidt
2023-08-20 15:36 ` Ihor Radchenko
2023-08-20 15:45 ` Eli Zaretskii
2023-08-20 15:54 ` Ihor Radchenko
2023-08-20 16:29 ` Alfred M. Szmidt
2023-08-20 16:37 ` Ihor Radchenko
2023-08-20 17:19 ` Alfred M. Szmidt
2023-08-20 17:31 ` Ihor Radchenko
2023-08-20 18:54 ` Alfred M. Szmidt
2023-08-20 19:07 ` Eli Zaretskii
2023-08-27 3:53 ` Emanuel Berg
2023-08-20 19:15 ` Ihor Radchenko
2023-08-20 19:24 ` Ihor Radchenko
2023-08-21 2:33 ` Eli Zaretskii
2023-08-21 4:11 ` Ihor Radchenko
2023-08-21 4:15 ` Po Lu
2023-08-21 4:36 ` Ihor Radchenko
2023-08-21 4:43 ` Po Lu
2023-08-21 5:06 ` Ihor Radchenko
2023-08-21 5:25 ` [External] : " Drew Adams
2023-08-21 5:34 ` Po Lu
2023-08-21 9:17 ` Add more supported primitives in libgccjit IR (was: Shrinking the C core) Ihor Radchenko
2023-08-21 9:42 ` Gregory Heytings
2023-08-21 10:36 ` Ihor Radchenko
2023-08-21 11:02 ` Alfred M. Szmidt
2023-08-21 11:41 ` Ihor Radchenko
2023-08-21 12:20 ` Eli Zaretskii
2023-08-21 14:49 ` Add more supported primitives in libgccjit IR Andrea Corallo
2023-08-23 10:11 ` Ihor Radchenko
2023-08-25 9:19 ` Andrea Corallo
2023-08-25 11:06 ` Ihor Radchenko
2023-08-25 14:26 ` Andrea Corallo
2023-08-26 11:14 ` Ihor Radchenko
2023-08-27 1:40 ` Emanuel Berg
2023-08-27 7:38 ` Emanuel Berg
2023-08-27 13:42 ` Andrea Corallo
2023-08-27 22:19 ` Emanuel Berg
2023-08-28 5:04 ` Andrea Corallo
2023-08-28 19:49 ` Emanuel Berg
2023-08-26 0:47 ` Emanuel Berg
2023-08-26 8:26 ` Ihor Radchenko
2023-08-26 17:52 ` Emanuel Berg
2023-08-21 11:05 ` Add more supported primitives in libgccjit IR (was: Shrinking the C core) Gregory Heytings
2023-08-21 11:46 ` Ihor Radchenko
2023-08-21 12:33 ` Gregory Heytings
2023-08-21 11:34 ` Add more supported primitives in libgccjit IR Manuel Giraud via Emacs development discussions.
2023-08-21 11:02 ` Add more supported primitives in libgccjit IR (was: Shrinking the C core) Alfred M. Szmidt
2023-08-21 11:12 ` Add more supported primitives in libgccjit IR Eli Zaretskii
2023-08-21 11:53 ` Ihor Radchenko
2023-08-27 2:04 ` Shrinking the C core Emanuel Berg
2023-08-21 7:59 ` Gregory Heytings
2023-08-27 5:31 ` Emanuel Berg
2023-08-27 6:16 ` Emanuel Berg
2023-08-21 10:48 ` Eli Zaretskii
2023-08-21 11:56 ` Ihor Radchenko
2023-08-21 12:22 ` Eli Zaretskii
2023-08-28 4:41 ` Emanuel Berg
2023-08-28 11:27 ` Ihor Radchenko
2023-08-20 20:15 ` Alfred M. Szmidt
2023-08-20 20:39 ` Ihor Radchenko
2023-08-21 5:59 ` Alfred M. Szmidt
2023-08-21 6:23 ` Ihor Radchenko
2023-08-21 7:21 ` Alfred M. Szmidt
2023-08-21 7:26 ` Ihor Radchenko
2023-08-21 7:52 ` Alfred M. Szmidt
2023-08-21 10:46 ` Ihor Radchenko
2023-08-21 11:02 ` Alfred M. Szmidt
2023-08-27 4:01 ` Emanuel Berg
2023-08-27 8:53 ` Ihor Radchenko
2023-08-27 3:48 ` Emanuel Berg [this message]
2023-08-27 9:06 ` Ihor Radchenko
2023-08-27 3:25 ` Emanuel Berg
2023-08-27 8:55 ` Ihor Radchenko
2023-08-20 16:03 ` Alfred M. Szmidt
2023-08-20 16:34 ` Ihor Radchenko
2023-08-20 17:19 ` Alfred M. Szmidt
2023-08-20 17:25 ` Ihor Radchenko
2023-08-20 18:54 ` Alfred M. Szmidt
2023-08-20 19:02 ` Eli Zaretskii
2023-08-20 20:11 ` Alfred M. Szmidt
2023-08-23 21:09 ` Emanuel Berg
2023-08-26 2:01 ` Richard Stallman
2023-08-26 5:48 ` Eli Zaretskii
2023-08-26 18:15 ` Emanuel Berg
2023-08-26 18:27 ` Eli Zaretskii
2023-08-20 19:14 ` Eli Zaretskii
2023-08-20 19:44 ` Ihor Radchenko
2023-08-20 20:11 ` Alfred M. Szmidt
2023-08-21 2:35 ` Eli Zaretskii
2023-08-21 8:48 ` Ihor Radchenko
2023-08-21 11:10 ` Eli Zaretskii
2023-08-21 11:59 ` Ihor Radchenko
2023-08-21 12:23 ` Eli Zaretskii
2023-08-23 10:13 ` Ihor Radchenko
2023-08-20 20:32 ` Emanuel Berg
2023-08-21 6:19 ` Alfred M. Szmidt
2023-08-21 6:26 ` Ihor Radchenko
2023-08-21 7:21 ` Alfred M. Szmidt
2023-08-21 7:25 ` Ihor Radchenko
2023-08-21 7:52 ` Alfred M. Szmidt
2023-08-21 11:26 ` Ihor Radchenko
2023-08-22 23:55 ` Emanuel Berg
2023-08-23 7:04 ` Alfred M. Szmidt
2023-08-23 17:24 ` Emanuel Berg
2023-08-24 20:02 ` Emanuel Berg
2023-08-20 21:51 ` [External] : " Drew Adams
2023-08-21 8:54 ` Type declarations in Elisp (was: [External] : Re: Shrinking the C core) Ihor Radchenko
2023-08-21 9:30 ` Gerd Möllmann
2023-08-21 11:13 ` Type declarations in Elisp Eli Zaretskii
2023-08-21 11:37 ` Type declarations in Elisp (was: [External] : Re: Shrinking the C core) Ihor Radchenko
2023-08-22 5:34 ` Type declarations in Elisp Gerd Möllmann
2023-08-22 6:16 ` Ihor Radchenko
2023-08-22 11:14 ` Eli Zaretskii
2023-08-22 23:33 ` Emanuel Berg
2023-08-25 9:29 ` Andrea Corallo
2023-08-25 20:42 ` Emanuel Berg
2023-08-27 8:42 ` Ihor Radchenko
2023-08-27 14:04 ` Andrea Corallo
2023-08-27 14:07 ` Ihor Radchenko
2023-08-27 15:46 ` Andrea Corallo
2023-08-27 17:15 ` Ihor Radchenko
2023-08-27 18:06 ` Andrea Corallo
2023-08-28 9:56 ` Ihor Radchenko
2023-08-28 19:06 ` Emanuel Berg
2023-08-18 8:35 ` Shrinking the C core Aurélien Aptel
2023-08-19 13:32 ` Emanuel Berg
2023-08-31 1:41 ` Emanuel Berg
2023-08-14 2:36 ` Richard Stallman
2023-08-14 4:12 ` Emanuel Berg
2023-08-14 11:15 ` Ihor Radchenko
2023-08-12 3:28 ` Christopher Dimech
2023-08-12 3:48 ` Emanuel Berg
2023-08-12 3:50 ` Emanuel Berg
2023-08-12 6:00 ` Christopher Dimech
2023-08-12 6:02 ` Eli Zaretskii
2023-08-12 7:38 ` Christopher Dimech
2023-08-09 12:45 ` Eli Zaretskii
2023-08-09 16:11 ` Eric S. Raymond
2023-08-09 16:44 ` Eli Zaretskii
2023-08-09 17:57 ` Eric S. Raymond
-- strict thread matches above, loose matches on Subject: below --
2023-08-13 7:59 Gerd Möllmann
2023-08-13 8:44 ` Emanuel Berg
2023-08-13 8:06 Gerd Möllmann
2023-08-13 9:26 ` Emanuel Berg
2023-08-13 11:20 Gerd Möllmann
2023-08-13 12:52 ` Ihor Radchenko
2023-08-27 15:14 Arthur Miller
2023-08-27 16:29 ` Eli Zaretskii
2023-08-28 5:32 ` Gerd Möllmann
2023-08-28 6:23 ` Arthur Miller
2023-08-28 6:21 ` Arthur Miller
2023-08-28 1:31 ` Richard Stallman
2023-08-28 5:50 ` Arthur Miller
2023-08-28 12:20 ` Po Lu
2023-08-28 14:39 ` Arthur Miller
2023-08-28 15:17 ` Po Lu
2023-08-29 2:41 ` Arthur Miller
2023-08-28 1:41 ` Po Lu
2023-08-28 2:53 ` chad
2023-08-28 3:43 ` Emanuel Berg
2023-08-28 4:53 ` Arthur Miller
2023-08-28 5:36 ` Po Lu
2023-08-28 6:55 ` Arthur Miller
2023-08-28 7:31 ` Po Lu
2023-08-28 8:06 ` Ihor Radchenko
2023-08-28 14:30 ` Arthur Miller
2023-08-28 15:09 ` Ihor Radchenko
2023-08-29 2:20 ` Arthur Miller
2023-08-28 15:14 ` Po Lu
2023-08-29 2:36 ` Arthur Miller
2023-08-29 4:07 ` Po Lu
2023-08-31 1:07 ` Emanuel Berg
2023-08-28 14:08 ` Arthur Miller
2023-08-28 15:08 ` Po Lu
2023-08-29 2:06 ` Arthur Miller
2023-08-29 4:15 ` Po Lu
2023-08-29 11:50 ` Eli Zaretskii
2023-08-29 3:57 ` Arthur Miller
2023-09-01 1:18 ` Richard Stallman
2023-08-31 2:07 ` Richard Stallman
2023-09-01 14:58 ` Arthur Miller
2023-09-01 16:36 ` tomas
2023-09-04 1:32 ` Richard Stallman
2023-09-04 1:44 ` Emanuel Berg
2023-09-04 5:49 ` Rudolf Schlatte
2023-09-04 14:08 ` Emanuel Berg
2023-09-07 1:21 ` Richard Stallman
2023-09-07 1:54 ` Emanuel Berg
2023-09-07 7:02 ` tomas
2023-09-07 7:36 ` Alfred M. Szmidt
2023-09-07 7:56 ` Emanuel Berg
2023-09-07 8:19 ` Ihor Radchenko
2023-09-07 8:39 ` Emanuel Berg
2023-09-07 9:28 ` Alfred M. Szmidt
2023-09-09 1:00 ` Emanuel Berg
2023-09-09 6:25 ` Po Lu
2023-09-09 7:24 ` Eli Zaretskii
2023-09-07 9:31 ` Eli Zaretskii
2023-09-07 9:39 ` Ihor Radchenko
2023-09-09 1:06 ` Emanuel Berg
2023-09-11 0:43 ` Richard Stallman
2023-09-11 12:24 ` Eli Zaretskii
2023-09-11 12:43 ` tomas
2023-09-13 5:59 ` Emanuel Berg
2023-09-12 4:44 ` Gerd Möllmann
2023-09-12 12:25 ` João Távora
2023-09-12 11:31 ` Lynn Winebarger
2023-09-13 6:12 ` Emanuel Berg
2023-09-05 4:23 ` Arthur Miller
2023-09-06 0:58 ` Richard Stallman
2023-09-06 1:12 ` Emanuel Berg
2023-09-06 5:04 ` Arthur Miller
2023-09-06 11:29 ` Alan Mackenzie
2023-09-06 23:03 ` Emanuel Berg
2023-09-07 7:00 ` tomas
2023-09-07 7:23 ` Emanuel Berg
2023-09-07 7:52 ` tomas
2023-09-07 5:30 ` Po Lu
2023-09-07 6:15 ` Emanuel Berg
2023-09-11 0:43 ` Richard Stallman
2023-09-11 12:05 ` Eli Zaretskii
2023-09-12 23:55 ` Richard Stallman
2023-09-13 6:34 ` Emanuel Berg
2023-09-07 8:51 ` Manuel Giraud via Emacs development discussions.
2023-09-07 9:20 ` Po Lu
2023-09-07 9:34 ` Eli Zaretskii
2023-09-08 2:00 ` Arthur Miller
2023-09-08 7:35 ` Gerd Möllmann
2023-09-09 10:05 ` João Távora
2023-09-08 17:58 ` Bob Rogers
2023-09-15 21:59 ` Emanuel Berg
2023-09-17 23:03 ` Richard Stallman
2023-09-09 0:39 ` Richard Stallman
2023-09-09 12:50 ` Arthur Miller
2023-09-12 0:27 ` Richard Stallman
2023-08-28 7:45 ` Andrea Monaco
2023-08-28 14:35 ` Arthur Miller
2023-09-12 3:46 Arthur Miller
2023-09-12 11:55 ` Eli Zaretskii
2023-09-12 18:22 ` chad
2023-09-12 18:47 ` Yuri Khan
2023-09-12 19:06 ` Eli Zaretskii
2023-09-12 19:07 ` joakim
2023-09-12 19:42 ` Eli Zaretskii
2023-09-12 21:56 ` joakim
2023-09-13 5:05 ` Emanuel Berg
2023-09-13 14:29 ` joakim
2023-09-15 5:46 ` Emanuel Berg
2023-09-13 15:33 ` Fraga, Eric
2023-09-15 5:51 ` Emanuel Berg
2023-09-15 11:38 ` Fraga, Eric
2023-09-12 3:51 Arthur Miller
2023-09-12 4:47 ` tomas
2023-09-12 11:29 ` Po Lu
2023-09-12 13:02 ` Alfred M. Szmidt
2023-09-13 5:06 Arthur Miller
2023-09-13 6:33 ` Gerd Möllmann
2023-09-14 11:35 ` Arthur Miller
2023-09-14 13:03 ` Gerd Möllmann
2023-09-14 13:20 ` Eli Zaretskii
2023-09-15 17:11 ` Emanuel Berg
2023-09-15 18:39 ` Eli Zaretskii
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