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Georg Lehmann 97bfc0f88f
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ac/nir/mem_vectorize: never create vec5 stores
We don't have 5 component stores, so it makes no sense to create them just to split
them again later. Additionally, they can result in suboptimal vectorization,
i.e. vec5 + vec1 + vec2 instead of vec4 + vec4 -> vec8 because NIR doesn't
have vec6 or vec7, and only two instructions are combined at a time.

Foz-DB Navi48:
Totals from 11 (0.01% of 209079) affected shaders:
Instrs: 75760 -> 75699 (-0.08%)
CodeSize: 401456 -> 400836 (-0.15%)
Latency: 256064 -> 255951 (-0.04%); split: -0.04%, +0.00%
InvThroughput: 31977 -> 31971 (-0.02%); split: -0.02%, +0.00%
VClause: 859 -> 861 (+0.23%)
SClause: 1567 -> 1566 (-0.06%)
Copies: 4558 -> 4562 (+0.09%); split: -0.04%, +0.13%
VALU: 30946 -> 30949 (+0.01%); split: -0.00%, +0.01%
SALU: 18457 -> 18455 (-0.01%)
VMEM: 1242 -> 1190 (-4.19%)
VOPD: 3273 -> 3274 (+0.03%); split: +0.09%, -0.06%

Reviewed-by: Marek Olšák <maraeo@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/42276>
2026-06-18 18:53:19 +00:00
.ci-farms ci-farms/vmware: Disable vmware tests for now 2026-06-17 18:11:48 -07:00
.ci-farms-disabled ci-farms/vmware: Disable vmware tests for now 2026-06-17 18:11:48 -07:00
.github/workflows meson: remove unused osmesa option 2025-06-23 06:42:50 +00:00
.gitlab radv: introduce RADV_EXPERIMENTAL envvar for experimental features 2026-03-30 07:27:01 +00:00
.gitlab-ci perfetto: v56.1 update 2026-06-17 16:39:52 +00:00
.marge/hooks marge/pipeline_message: print details for any pipeline that hasn't succeeded 2026-02-13 14:44:30 +00:00
android amd/virtio: enable Android amdgpu-virtio build option 2026-06-08 08:29:43 +00:00
bin gen_release_notes: add support for "work_items" links 2026-06-18 12:05:10 +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 panvk: Advertise VK_EXT_rasterization_order_attachment_access 2026-06-18 16:16:50 +00:00
include vulkan: update spec to 1.4.354 2026-06-18 09:33:56 +00:00
licenses licenses: add missing licenses 2025-01-08 20:37:51 +00:00
src ac/nir/mem_vectorize: never create vec5 stores 2026-06-18 18:53:19 +00:00
subprojects perfetto: v56.1 update 2026-06-17 16:39:52 +00:00
.clang-format meson: Restore .clang-format for ninja clang-format target 2026-02-02 13:30:55 +00:00
.clang-format-ignore ethosu: Switch to the weight encoder from Regor 2026-03-23 07:45:55 +00:00
.clang-format-include kk: Enable code formatting enforcement 2026-05-25 15:30:32 +00:00
.dir-locals.el
.editorconfig editorconfig: Set for glsl files 2025-11-14 19:31:17 +00:00
.git-blame-ignore-revs radv: Add re-format commit to .git-blame-ignore-revs 2025-11-12 07:55:36 +00:00
.gitattributes gitlab: Highlight .cl as C 2023-11-02 11:37:46 +00:00
.gitignore Revert "add VK CTS validation report for a0 interpolation fix" 2026-02-10 18:07:18 +00:00
.gitlab-ci.yml ci: changing .gitlab-ci.yml itself also means the container jobs must exist 2026-03-18 14:19:02 +00:00
.graphqlrc.yml
.mailmap mailmap: Update my email 2026-03-12 23:36:00 +00:00
.mr-label-maker.yml mr-label-maker: Add rule for new trace replay config files 2026-05-11 08:02:05 +00:00
.shellcheckrc ci: move shellcheck options to .shellcheckrc 2024-10-24 22:43:03 +00:00
clippy.toml meson: Bump the minimum rust version to 1.85.0 2026-05-30 01:20:10 +00:00
CODEOWNERS CODEOWNERS: add Jay 2026-05-27 20:03:10 +00:00
meson.build perfetto: v56.1 update 2026-06-17 16:39:52 +00:00
meson.options tu: add option to override the build ID 2026-06-04 12:44:13 +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 26.2 2026-04-15 13:15:35 +00:00

`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.