Rhys Perry 4f83059ac5 nir/algebraic: improve is_unsigned_multiple_of_4 and use it more
fossil-db (gfx1201):
Totals from 160 (0.20% of 79839) affected shaders:
MaxWaves: 4008 -> 3952 (-1.40%)
Instrs: 390073 -> 379834 (-2.62%); split: -2.63%, +0.00%
CodeSize: 2126020 -> 2053740 (-3.40%); split: -3.40%, +0.00%
VGPRs: 9492 -> 9612 (+1.26%)
Latency: 6746019 -> 6723893 (-0.33%); split: -0.33%, +0.00%
InvThroughput: 849571 -> 848942 (-0.07%); split: -0.42%, +0.35%
VClause: 11977 -> 11983 (+0.05%); split: -0.20%, +0.25%
SClause: 11828 -> 11824 (-0.03%); split: -0.14%, +0.11%
Copies: 30003 -> 30938 (+3.12%); split: -0.09%, +3.20%
PreSGPRs: 8914 -> 8938 (+0.27%)
PreVGPRs: 7352 -> 7514 (+2.20%); split: -0.04%, +2.24%
VALU: 171829 -> 168829 (-1.75%); split: -1.76%, +0.01%
SALU: 66503 -> 66543 (+0.06%); split: -0.01%, +0.07%
VMEM: 29365 -> 25327 (-13.75%)
VOPD: 864 -> 1013 (+17.25%)

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36760>
2025-08-22 15:45:55 +00:00
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2025-07-26 00:33:59 +00:00
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`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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