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Jose Maria Casanova Crespo 2cd51a6efc broadcom/compiler: move nir_lower_undef_to_zero out of optimization loop
The combination of nir_opt_if and nir_lower_undef_to_zero running inside
the optimization loop could make it to not converge.

This was exercised by ollama running gemma3 compute shaders.

Removing the pass from the optimization loop results in No changes in
shader-db.

Assisted-by: Claude Opus 4.6
Fixes: cbe24a0e9c ("broadcom/compiler: use nir_lower_undef_to_zero")
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41256>
2026-04-30 12:30:34 +02:00
.ci-farms Revert "ci: disable Collabora's farm due to maintenance" 2026-04-20 14:28:04 +00:00
.ci-farms-disabled Revert "ci: disable Collabora's farm due to maintenance" 2026-04-20 14:28:04 +00:00
.github/workflows
.gitlab radv: introduce RADV_EXPERIMENTAL envvar for experimental features 2026-03-30 07:27:01 +00:00
.gitlab-ci ci: install libstdc++-static on fedora 2026-04-29 16:55:39 +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
bin android_stub: drop cutils/properties dependency 2026-04-28 20:47:36 +00:00
build-support
docs docs: add sha sum for 26.0.6 2026-04-29 22:32:41 +00:00
include android_stub: drop cutils/properties dependency 2026-04-28 20:47:36 +00:00
licenses
src broadcom/compiler: move nir_lower_undef_to_zero out of optimization loop 2026-04-30 12:30:34 +02:00
subprojects ci: Bump DirectX-Headers and Agility SDK dependencies to v1.619.1 2026-03-10 15:06:44 +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
.dir-locals.el
.editorconfig
.git-blame-ignore-revs
.gitattributes
.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: Label Collabora farm with driver tags 2026-04-20 15:20:28 +00:00
.shellcheckrc
clippy.toml
CODEOWNERS CODEOWNERS: update owners for Android components 2026-04-28 21:42:34 +00:00
meson.build meson: bump required libdrm to 2.4.133 for AMDGPU 2026-04-29 09:30:13 +00:00
meson.options amd: make ac_ib_parser an amd tool build option 2026-04-17 09:40:13 +00:00
README.rst
rustfmt.toml
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.