Ian Romanick b948e6d503 brw: Use BFN to implement nir_opt_bitfield_select
shader-db:

Lunar Lake, Meteor Lake, and DG2 had similar results. (Lunar Lake shown)
total instructions in shared programs: 17181559 -> 17181254 (<.01%)
instructions in affected programs: 250921 -> 250616 (-0.12%)
helped: 303 / HURT: 0

total cycles in shared programs: 888542568 -> 888543370 (<.01%)
cycles in affected programs: 49861772 -> 49862574 (<.01%)
helped: 181 / HURT: 110

fossil-db:

Lunar Lake, Meteor Lake, and DG2 had similar results. (Lunar Lake shown)
Totals:
Instrs: 233260591 -> 233260196 (-0.00%); split: -0.00%, +0.00%
Cycle count: 32754501248 -> 32754567116 (+0.00%); split: -0.00%, +0.00%
Max live registers: 71738476 -> 71738442 (-0.00%)
Non SSA regs after NIR: 67837262 -> 67837108 (-0.00%); split: -0.00%, +0.00%

Totals from 226 (0.03% of 790721) affected shaders:
Instrs: 382227 -> 381832 (-0.10%); split: -0.15%, +0.05%
Cycle count: 72863878 -> 72929746 (+0.09%); split: -0.65%, +0.74%
Max live registers: 36557 -> 36523 (-0.09%)
Non SSA regs after NIR: 60427 -> 60273 (-0.25%); split: -0.26%, +0.00%

No shader-db or fossil-db changes on any previous Intel platforms.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/37186>
2025-10-10 17:25:11 +00:00
2025-02-23 00:31:59 +01:00
2025-10-09 12:12:42 +00:00
2025-10-10 15:29:03 +00:00
2025-09-26 14:02:52 +00:00
2025-01-08 20:37:51 +00:00
2023-11-02 11:37:46 +00:00
2025-09-16 19:45:15 +00:00
2025-08-31 15:38:27 +00:00
2024-11-18 22:29:14 +00:00
2025-07-16 13:50:24 +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.
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