Ian Romanick b967942b64 brw: Do cmod prop again after scheduling
After selecting the scheduling mode, do cmod prop again. It's possible
that doing cmod prop between performing a schedule and trying to
register allocate would cause a different scheduling mode to be
selected. However, this would require fully restoring the pre-schedule
set of instructions (via cloning). I have tried to implement this, and
it's harder than it looks. :(

v2: Delete unused variable `progress`. Noticed by Marge.

shader-db:

All Intel platforms had similar results. (Meteor Lake shown)
total instructions in shared programs: 19967018 -> 19967006 (<.01%)
instructions in affected programs: 10652 -> 10640 (-0.11%)
helped: 4 / HURT: 0

total cycles in shared programs: 884129990 -> 884139590 (<.01%)
cycles in affected programs: 20334512 -> 20344112 (0.05%)
helped: 0 / HURT: 4

fossil-db:

Lunar Lake
Totals:
Instrs: 924967191 -> 924963460 (-0.00%); split: -0.00%, +0.00%
Cycle count: 105962414958 -> 105961925594 (-0.00%); split: -0.00%, +0.00%
Spill count: 3423582 -> 3423564 (-0.00%); split: -0.00%, +0.00%
Fill count: 4877121 -> 4876955 (-0.00%); split: -0.00%, +0.00%

Totals from 2511 (0.12% of 2018786) affected shaders:
Instrs: 12541707 -> 12537976 (-0.03%); split: -0.03%, +0.00%
Cycle count: 4816359238 -> 4815869874 (-0.01%); split: -0.01%, +0.00%
Spill count: 179536 -> 179518 (-0.01%); split: -0.03%, +0.02%
Fill count: 279407 -> 279241 (-0.06%); split: -0.07%, +0.01%

Meteor Lake, DG2, Tiger Lake, Ice Lake, and Skylake had similar results. (Meteor Lake shown)
Totals:
Instrs: 980252404 -> 980237686 (-0.00%); split: -0.00%, +0.00%
Cycle count: 91758669556 -> 91764028404 (+0.01%); split: -0.00%, +0.01%
Spill count: 3664771 -> 3664744 (-0.00%); split: -0.00%, +0.00%
Fill count: 4962078 -> 4960482 (-0.03%); split: -0.04%, +0.01%

Totals from 8472 (0.38% of 2251522) affected shaders:
Instrs: 34977623 -> 34962905 (-0.04%); split: -0.04%, +0.00%
Cycle count: 6251857553 -> 6257216401 (+0.09%); split: -0.04%, +0.13%
Spill count: 480251 -> 480224 (-0.01%); split: -0.01%, +0.00%
Fill count: 676539 -> 674943 (-0.24%); split: -0.28%, +0.05%

Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38315>
2025-12-18 15:15:20 -08:00
2025-12-18 12:35:39 +02:00
2025-12-12 20:35:35 +00:00
2025-12-17 22:11:17 +00:00
2025-11-14 19:31:17 +00:00
2025-11-03 22:08:48 +00:00
2025-10-21 02:28:09 +00:00
2025-10-16 03:31:58 +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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