Ian Romanick 96cde9cc01 intel/fs: Emit better code for bfi(..., 0)
DG2, Tiger Lake, Ice Lake, and Skylake had similar results (Ice Lake shown)
total instructions in shared programs: 20570141 -> 20570063 (<.01%)
instructions in affected programs: 30679 -> 30601 (-0.25%)
helped: 77 / HURT: 0

total cycles in shared programs: 902113977 -> 902118723 (<.01%)
cycles in affected programs: 3255958 -> 3260704 (0.15%)
helped: 60 / HURT: 19

Broadwell
total instructions in shared programs: 18524633 -> 18524547 (<.01%)
instructions in affected programs: 34095 -> 34009 (-0.25%)
helped: 75 / HURT: 2

total cycles in shared programs: 949532394 -> 949543761 (<.01%)
cycles in affected programs: 3419107 -> 3430474 (0.33%)
helped: 57 / HURT: 24

total spills in shared programs: 22484 -> 22484 (0.00%)
spills in affected programs: 516 -> 516 (0.00%)
helped: 2 / HURT: 2

total fills in shared programs: 29346 -> 29338 (-0.03%)
fills in affected programs: 572 -> 564 (-1.40%)
helped: 4 / HURT: 0

Haswell
total instructions in shared programs: 17331356 -> 17331523 (<.01%)
instructions in affected programs: 27920 -> 28087 (0.60%)
helped: 41 / HURT: 4

total cycles in shared programs: 936603192 -> 936574664 (<.01%)
cycles in affected programs: 3417695 -> 3389167 (-0.83%)
helped: 28 / HURT: 21

total spills in shared programs: 19718 -> 19756 (0.19%)
spills in affected programs: 436 -> 474 (8.72%)
helped: 0 / HURT: 4

total fills in shared programs: 22547 -> 22607 (0.27%)
fills in affected programs: 444 -> 504 (13.51%)
helped: 0 / HURT: 4

Ivy Bridge
total cycles in shared programs: 463451277 -> 463451273 (<.01%)
cycles in affected programs: 95870 -> 95866 (<.01%)
helped: 3 / HURT: 2

DG2, Tiger Lake, Ice Lake, and Skylake had similar results (Ice Lake shown)
Totals:
Instrs: 152825278 -> 152819969 (-0.00%); split: -0.00%, +0.00%
Cycles: 15014075626 -> 15014628652 (+0.00%); split: -0.01%, +0.01%
Subgroup size: 8528536 -> 8528560 (+0.00%)
Send messages: 7711431 -> 7711464 (+0.00%)
Spill count: 99907 -> 99509 (-0.40%); split: -0.40%, +0.00%
Fill count: 202459 -> 201598 (-0.43%); split: -0.43%, +0.00%
Scratch Memory Size: 4376576 -> 4371456 (-0.12%)

Totals from 2915 (0.44% of 662497) affected shaders:
Instrs: 2288842 -> 2283533 (-0.23%); split: -0.24%, +0.01%
Cycles: 471633295 -> 472186321 (+0.12%); split: -0.27%, +0.39%
Subgroup size: 27488 -> 27512 (+0.09%)
Send messages: 151344 -> 151377 (+0.02%)
Spill count: 48091 -> 47693 (-0.83%); split: -0.83%, +0.00%
Fill count: 59053 -> 58192 (-1.46%); split: -1.46%, +0.00%
Scratch Memory Size: 1827840 -> 1822720 (-0.28%)

Reviewed-by: Matt Turner <mattst88@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19968>
2023-06-14 18:49:53 +00:00
2022-11-22 19:04:13 +00:00
2022-01-19 15:17:17 +00:00
2022-11-21 23:09:30 +00:00
2023-06-14 17:39:29 +00:00
2023-06-09 19:31:20 +00:00
2023-04-13 08:45:17 +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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