Rhys Perry f95a16be72 nir/algebraic: reassociate add chains for more MAD/FMA-friendly code
fossil-db (GFX10.3):
Totals from 25866 (17.68% of 146267) affected shaders:
VGPRs: 1625456 -> 1644936 (+1.20%); split: -0.05%, +1.24%
SpillSGPRs: 11729 -> 11725 (-0.03%); split: -0.07%, +0.03%
CodeSize: 161604460 -> 161458052 (-0.09%); split: -0.11%, +0.02%
MaxWaves: 454842 -> 452160 (-0.59%); split: +0.04%, -0.63%
Instrs: 30652596 -> 30456446 (-0.64%); split: -0.65%, +0.01%
Latency: 723098749 -> 722084247 (-0.14%); split: -0.21%, +0.07%
InvThroughput: 166023468 -> 165506875 (-0.31%); split: -0.36%, +0.05%

fossil-db (GFX10):
Totals from 25866 (17.68% of 146267) affected shaders:
VGPRs: 1593576 -> 1611976 (+1.15%); split: -0.09%, +1.25%
SpillSGPRs: 11729 -> 11725 (-0.03%); split: -0.07%, +0.03%
CodeSize: 162294468 -> 162154456 (-0.09%); split: -0.11%, +0.02%
MaxWaves: 477448 -> 474166 (-0.69%); split: +0.10%, -0.79%
Instrs: 30820164 -> 30625805 (-0.63%); split: -0.65%, +0.02%
Latency: 723190249 -> 722273445 (-0.13%); split: -0.20%, +0.08%
InvThroughput: 163114872 -> 162582966 (-0.33%); split: -0.37%, +0.04%

fossil-db (GFX9):
Totals from 25866 (17.67% of 146401) affected shaders:
SGPRs: 2167808 -> 2169920 (+0.10%); split: -0.09%, +0.19%
VGPRs: 1649404 -> 1667592 (+1.10%); split: -0.43%, +1.53%
CodeSize: 161273556 -> 161281996 (+0.01%); split: -0.07%, +0.08%
MaxWaves: 114910 -> 113519 (-1.21%); split: +0.10%, -1.31%
Instrs: 31557180 -> 31403708 (-0.49%); split: -0.50%, +0.02%
Latency: 899594793 -> 898786283 (-0.09%); split: -0.19%, +0.10%
InvThroughput: 412265691 -> 411551698 (-0.17%); split: -0.28%, +0.11%

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8056>
2021-08-16 17:19:45 +00:00
2021-08-14 21:44:32 +00:00
2021-08-12 19:29:59 +00:00
2021-05-07 13:41:38 +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://mesa3d.org/install.html>`_), but the recommended way is to use
Meson (`docs/meson.rst <https://mesa3d.org/meson.html>`_):

.. code-block:: sh

  $ mkdir build
  $ cd build
  $ meson ..
  $ sudo ninja 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://mesa3d.org/bugs.html>`_).


Contributing
------------

Contributions are welcome, and step-by-step instructions can be found in our
documentation (`docs/submittingpatches.rst
<https://mesa3d.org/submittingpatches.html>`_).

Note that Mesa uses gitlab for patches submission, review and discussions.
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