all messages for Guix-related lists mirrored at yhetil.org
 help / color / mirror / code / Atom feed
From: "Ludovic Courtès" <ludo@gnu.org>
To: Efraim Flashner <efraim@flashner.co.il>
Cc: Josselin Poiret <dev@jpoiret.xyz>,
	Simon Tournier <zimon.toutoune@gmail.com>,
	Mathieu Othacehe <othacehe@gnu.org>,
	69581@debbugs.gnu.org, Tobias Geerinckx-Rice <me@tobias.gr>,
	Ricardo Wurmus <rekado@elephly.net>,
	Christopher Baines <guix@cbaines.net>
Subject: [bug#69581] [PATCH 05/11] guix: cpu: Enable tuning for i686-linux.
Date: Wed, 06 Mar 2024 19:05:03 +0100	[thread overview]
Message-ID: <87o7br9qy8.fsf@gnu.org> (raw)
In-Reply-To: <33a8d78738553f464f5974a0d2cba981e65ced78.1709722620.git.efraim@flashner.co.il> (Efraim Flashner's message of "Wed, 6 Mar 2024 13:06:06 +0200")

Efraim Flashner <efraim@flashner.co.il> skribis:

> * gnu/packages/gcc.scm (gcc-7, gcc-10, gcc-11, gcc-12, gcc-13)
> [properties]: In compiler-cpu-architectures use the
> x86_64-micro-architectures list for i686.
> * guix/cpu.scm (cpu->gcc-architecture): Expand the x86_64 case to also
> support i686.

[...]

> +++ b/gnu/packages/gcc.scm
> @@ -673,6 +673,7 @@ (define-public gcc-7
>       `((compiler-cpu-architectures
>          ("aarch64" ,@%gcc-7.5-aarch64-micro-architectures)
>          ("armhf" ,@%gcc-7.5-armhf-micro-architectures)
> +        ("i686" ,@%gcc-7.5-x86_64-micro-architectures)
>          ("x86_64" ,@%gcc-7.5-x86_64-micro-architectures))

Wait, that wouldn’t work on an actual i686 CPU, right?

I was surprised to see that GCC built for i686 accepts those flags:

  guix shell -s i686-linux gcc-toolchain -- gcc -march=skylake /tmp/t.c
  guix shell -s i686-linux gcc-toolchain -- gcc -march=x86-64-v4 /tmp/t.c

If GCC agrees, so be it.  LGTM!




  reply	other threads:[~2024-03-06 18:06 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-03-06 11:03 [bug#69581] [PATCH 00/11] CPU tuning patches Efraim Flashner
2024-03-06 11:06 ` [bug#69581] [PATCH 01/11] gnu: opus: Mark as tunable Efraim Flashner
2024-03-06 17:49   ` Ludovic Courtès
2024-03-06 11:06 ` [bug#69581] [PATCH 02/11] gnu: libvorbis: " Efraim Flashner
2024-03-06 11:06 ` [bug#69581] [PATCH 03/11] guix: cpu: Be consistent with x86_64 micro-architecture names Efraim Flashner
2024-03-06 17:53   ` Ludovic Courtès
2024-03-07  9:11     ` Efraim Flashner
2024-03-06 11:06 ` [bug#69581] [PATCH 04/11] guix: cpu: Rename x86-64-v1 to x86-64 Efraim Flashner
2024-03-06 17:59   ` Ludovic Courtès
2024-03-06 11:06 ` [bug#69581] [PATCH 05/11] guix: cpu: Enable tuning for i686-linux Efraim Flashner
2024-03-06 18:05   ` Ludovic Courtès [this message]
2024-03-07  9:09     ` Efraim Flashner
2024-03-06 11:06 ` [bug#69581] [PATCH 06/11] gnu: syncthing: Mark as tunable Efraim Flashner
2024-03-06 18:06   ` Ludovic Courtès
2024-03-07  9:09     ` Efraim Flashner
2024-03-06 11:06 ` [bug#69581] [PATCH 07/11] gnu: rust: Add tuning information Efraim Flashner
2024-03-06 18:09   ` Ludovic Courtès
2024-03-07  9:09     ` Efraim Flashner
2024-03-06 18:10   ` Ludovic Courtès
2024-03-07  9:10     ` Efraim Flashner
2024-03-07 21:38       ` Ludovic Courtès
2024-03-08 12:05         ` Efraim Flashner
2024-03-08 21:57           ` Ludovic Courtès
2024-03-10  8:26             ` Efraim Flashner
2024-03-06 11:06 ` [bug#69581] [PATCH 08/11] transformations: Add support for rust Efraim Flashner
2024-03-06 18:11   ` Ludovic Courtès
2024-03-06 11:06 ` [bug#69581] [PATCH 09/11] gnu: rav1e: Mark as tunable Efraim Flashner
2024-03-06 11:06 ` [bug#69581] [PATCH 10/11] gnu: clang-properties: Update x86_64 micro-architectures Efraim Flashner
2024-03-06 18:12   ` Ludovic Courtès
2024-03-07  9:10     ` Efraim Flashner
2024-03-07 21:42       ` Ludovic Courtès
2024-03-08 12:07         ` Efraim Flashner
2024-03-07  9:12     ` Efraim Flashner
2024-03-06 11:06 ` [bug#69581] [PATCH 11/11] gnu: clang-properties: Add micro-architecture support for powerpc64le Efraim Flashner
2024-03-06 18:12   ` Ludovic Courtès
     [not found] ` <handler.69581.B.170972307319660.ack@debbugs.gnu.org>
2024-03-10 10:51   ` bug#69581: Acknowledgement ([PATCH 00/11] CPU tuning patches) Efraim Flashner

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=87o7br9qy8.fsf@gnu.org \
    --to=ludo@gnu.org \
    --cc=69581@debbugs.gnu.org \
    --cc=dev@jpoiret.xyz \
    --cc=efraim@flashner.co.il \
    --cc=guix@cbaines.net \
    --cc=me@tobias.gr \
    --cc=othacehe@gnu.org \
    --cc=rekado@elephly.net \
    --cc=zimon.toutoune@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this external index

	https://git.savannah.gnu.org/cgit/guix.git

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.