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Alyssa Rosenzweig fc95397957 nir/lower_alu: optimize min/max signed zeros
we don't usually need a multi-instruction lowering.

with the agx change in the next commit, honeykrisp results:

   Totals from 3589 (6.64% of 54019) affected shaders:
   MaxWaves: 3598144 -> 3598400 (+0.01%); split: +0.02%, -0.01%
   Instrs: 1445830 -> 1332394 (-7.85%)
   CodeSize: 10696356 -> 9742130 (-8.92%)
   Fills: 721 -> 723 (+0.28%); split: -0.14%, +0.42%
   Scratch: 3980 -> 3968 (-0.30%)
   ALU: 1156426 -> 1043198 (-9.79%)
   FSCIB: 1156426 -> 1043196 (-9.79%)
   IC: 267202 -> 267166 (-0.01%)
   GPRs: 208765 -> 208712 (-0.03%); split: -0.16%, +0.14%
   Uniforms: 683643 -> 683677 (+0.00%); split: -0.01%, +0.01%
   Preamble instrs: 1163325 -> 1159314 (-0.34%)

control results alone:

   Totals:
   Instrs: 110168 -> 107171 (-2.72%)

   Totals from 71 (22.26% of 319) affected shaders:
   Instrs: 48895 -> 45898 (-6.13%)

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Marek Olšák <maraeo@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35989>
2025-07-08 17:09:16 +00:00
.ci-farms svga/ci: enable vmware farm 2025-06-18 14:52:25 +00:00
.ci-farms-disabled svga/ci: enable vmware farm 2025-06-18 14:52:25 +00:00
.github/workflows meson: remove unused osmesa option 2025-06-23 06:42:50 +00:00
.gitlab docs: update gitlab docs urls 2025-02-23 00:31:59 +01:00
.gitlab-ci broadcom/ci: add definitions for ci-tron jobs 2025-07-08 11:09:51 +02:00
.marge/hooks ci: pipeline_message: reset empty errors 2025-01-07 05:08:10 +00:00
android Revert "android: Link with libc++fs up to SDK 35" 2025-06-03 22:01:01 +00:00
bin bin: explicitly use python3 instead of python 2025-07-03 20:52:48 +00:00
build-support meson: move tsan-blacklist.txt to build-support with the other build support files 2024-05-01 07:05:12 +00:00
docs lavapipe: Implement VK_EXT_depth_bias_control 2025-07-07 23:05:11 +00:00
include amd: Add user queue HQD count to hw_ip info 2025-07-08 10:17:51 +00:00
licenses licenses: add missing licenses 2025-01-08 20:37:51 +00:00
src nir/lower_alu: optimize min/max signed zeros 2025-07-08 17:09:16 +00:00
subprojects util: rust: update to rustix 1.0.7 2025-06-26 17:11:41 +00:00
.clang-format meson: enable the clang-format target 2023-05-29 11:57:08 +00:00
.clang-format-ignore ci: enforce formatting for RADV & ACO 2023-06-16 19:59:52 +00:00
.clang-format-include r300: opt in to clang-format CI enforcement for the compiler 2024-10-15 09:24:02 +00:00
.dir-locals.el
.editorconfig meson: rename meson_options.txt 2025-02-09 08:13:27 +00:00
.git-blame-ignore-revs freedreno: Add register renaming to .git-blame-ignore-revs 2025-07-03 12:50:04 +00:00
.gitattributes gitlab: Highlight .cl as C 2023-11-02 11:37:46 +00:00
.gitignore .gitignore: add .cache folder 2024-05-13 14:32:12 +00:00
.gitlab-ci.yml ci: reduce the root .gitlab-ci file 2025-06-30 12:32:30 +00:00
.graphqlrc.yml
.mailmap mailmap: update my name and email 2025-05-07 00:26:45 +00:00
.mr-label-maker.yml mr-label-maker.yml: remove remaining osmesa occurrences 2025-06-23 06:42:50 +00:00
.shellcheckrc ci: move shellcheck options to .shellcheckrc 2024-10-24 22:43:03 +00:00
CODEOWNERS docs: update gitlab docs urls 2025-02-23 00:31:59 +01:00
meson.build meson: drop vdrm from virgl and venus 2025-07-04 09:50:04 +00:00
meson.options radeonsi: add a way to override the disk cache key with radeonsi-build-id 2025-06-24 09:34:50 +00:00
README.rst docs: Match README installation guide with meson.rst 2024-07-27 11:53:53 +00:00
rustfmt.toml mesa: Add rustfmt.toml 2024-11-18 22:29:14 +00:00
VERSION VERSION: bump to 25.2 2025-04-16 14:30:14 +02:00

`Mesa <https://mesa3d.org>`_ - The 3D Graphics Library
======================================================


Source
------

This repository lives at https://gitlab.freedesktop.org/mesa/mesa.
Other repositories are likely forks, and code found there is not supported.


Build & install
---------------

You can find more information in our documentation (`docs/install.rst
<https://docs.mesa3d.org/install.html>`_), but the recommended way is to use
Meson (`docs/meson.rst <https://docs.mesa3d.org/meson.html>`_):

.. code-block:: sh

  $ meson setup build
  $ ninja -C build/
  $ sudo ninja -C build/ install

Support
-------

Many Mesa devs hang on IRC; if you're not sure which channel is
appropriate, you should ask your question on `OFTC's #dri-devel
<irc://irc.oftc.net/dri-devel>`_, someone will redirect you if
necessary.
Remember that not everyone is in the same timezone as you, so it might
take a while before someone qualified sees your question.
To figure out who you're talking to, or which nick to ping for your
question, check out `Who's Who on IRC
<https://dri.freedesktop.org/wiki/WhosWho/>`_.

The next best option is to ask your question in an email to the
mailing lists: `mesa-dev\@lists.freedesktop.org
<https://lists.freedesktop.org/mailman/listinfo/mesa-dev>`_


Bug reports
-----------

If you think something isn't working properly, please file a bug report
(`docs/bugs.rst <https://docs.mesa3d.org/bugs.html>`_).


Contributing
------------

Contributions are welcome, and step-by-step instructions can be found in our
documentation (`docs/submittingpatches.rst
<https://docs.mesa3d.org/submittingpatches.html>`_).

Note that Mesa uses gitlab for patches submission, review and discussions.