Rhys Perry dfe429eb41 nir/loop_unroll: unroll more aggressively if it can improve load scheduling
Significantly improves performance of a Control compute shader. Also seems
to increase FPS at the very start of the game by ~5% (RX 580, 1080p,
medium settings, no MSAA).

fossil-db (Sienna):
Totals from 81 (0.06% of 139391) affected shaders:
SGPRs: 3848 -> 4362 (+13.36%); split: -0.99%, +14.35%
VGPRs: 4132 -> 4648 (+12.49%)
CodeSize: 275532 -> 659188 (+139.24%)
MaxWaves: 986 -> 906 (-8.11%)
Instrs: 54422 -> 126865 (+133.11%)
Cycles: 1057240 -> 750464 (-29.02%); split: -42.61%, +13.60%
VMEM: 26507 -> 61829 (+133.26%); split: +135.56%, -2.30%
SMEM: 4748 -> 5895 (+24.16%); split: +31.47%, -7.31%
VClause: 1933 -> 6802 (+251.89%); split: -0.72%, +252.61%
SClause: 1179 -> 1810 (+53.52%); split: -3.14%, +56.66%
Branches: 1174 -> 1157 (-1.45%); split: -23.94%, +22.49%
PreVGPRs: 3219 -> 3387 (+5.22%); split: -0.96%, +6.18%

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6538>
2021-01-13 18:54:18 +00:00
2020-08-06 09:46:48 +00:00
2021-01-09 20:51:35 -06:00
2020-01-18 11:39:32 +01:00
2020-08-06 09:46:48 +00:00
2019-10-18 16:42:40 +00:00
2021-01-13 09:46:19 -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://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 `Freenode's #dri-devel
<irc://chat.freenode.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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