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Georg Lehmann daa2b253f4 ac/nir/cull: do not reuse variables if subgroup ops are used
Subgroup ops make divergence information useless for our purpose,
we would need workgroup divergence.

The game affected here has control flow dependent on vote_any,
so it's possible that a wave only executes the code after culling/reordering
invocations.
That means we can't reuse the maybe undefined value from before culling.

Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>

Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/14459
Cc: mesa-stable
(cherry picked from commit cbedced5e8)

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/39117>
2026-01-01 03:26:32 -08:00
.ci-farms Revert "ci: disable Collabora's farm due to maintenance" 2025-10-06 13:00:52 +02:00
.ci-farms-disabled Revert "ci: disable Collabora's farm due to maintenance" 2025-10-06 13:00:52 +02:00
.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 ci: use $CI_TRON_JOB_PRIORITY tag on all ci-tron jobs 2025-12-01 09:16:33 -08:00
.marge/hooks ci: pipeline_message: reset empty errors 2025-01-07 05:08:10 +00:00
android android: fix building rules for i915, r300 2025-10-08 23:43:33 +02:00
bin bin/symbols-check: Fix undefined symbol detection on macOS 2025-12-28 18:58:23 -08:00
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 docs: Add checksums for 25.3.2 2025-12-17 14:06:34 -08:00
include drm-uapi: Import the new NVIDIA modifiers 2025-11-13 08:10:17 -08:00
licenses licenses: add missing licenses 2025-01-08 20:37:51 +00:00
src ac/nir/cull: do not reuse variables if subgroup ops are used 2026-01-01 03:26:32 -08:00
subprojects rust: build ucd-trie dependency with the correct edition 2025-12-16 09:49:04 -08:00
.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 ethos: Initial commit of a driver for the Arm Ethos-U65 NPU. 2025-10-15 20:10:15 +00:00
.dir-locals.el
.editorconfig editorconfig: move OpenCL configuration to root 2025-08-30 22:49:08 -07:00
.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 intel/mda: Add code to produce mesa debug archives 2025-09-24 23:08:45 -07:00
.gitlab-ci.yml ci: use $CI_TRON_JOB_PRIORITY tag on all ci-tron jobs 2025-12-01 09:16:33 -08:00
.graphqlrc.yml
.mailmap mailmap: Update for Dylan Baker 2025-09-16 19:45:15 +00:00
.mr-label-maker.yml mr-label-maker.yml: remove remaining osmesa occurrences 2025-06-23 06:42:50 +00:00
.pick_status.json ac/nir/cull: do not reuse variables if subgroup ops are used 2026-01-01 03:26:32 -08:00
.shellcheckrc ci: move shellcheck options to .shellcheckrc 2024-10-24 22:43:03 +00:00
CODEOWNERS intel: update code owners 2025-08-31 15:38:27 +00:00
meson.build meson: auto-disable draw-use-llvm when llvm=disabled 2025-12-01 09:16:31 -08:00
meson.options ethos: Initial commit of a driver for the Arm Ethos-U65 NPU. 2025-10-15 20:10:15 +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 for 25.3.2 2025-12-17 13:00:46 -08:00

`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.