Timothy Arceri aa4b1d314e glsl: copy prop vars before scalarizing alus
This generally gives us better results and doing it here in nir will
also allow us to remove more glsl optimisation calls that do a similiar
thing for us.

(Updated shader-db results by idr.)

Tiger Lake, Ice Lake, and Skylake had similar results. (Ice Lake shown)
total instructions in shared programs: 20246333 -> 20240715 (-0.03%)
instructions in affected programs: 235253 -> 229635 (-2.39%)
helped: 425 / HURT: 114

total cycles in shared programs: 891730115 -> 891631113 (-0.01%)
cycles in affected programs: 37347925 -> 37248923 (-0.27%)
helped: 952 / HURT: 692

total spills in shared programs: 7072 -> 6716 (-5.03%)
spills in affected programs: 505 -> 149 (-70.50%)
helped: 7 / HURT: 0

total fills in shared programs: 9897 -> 8511 (-14.00%)
fills in affected programs: 1674 -> 288 (-82.80%)
helped: 7 / HURT: 0

total sends in shared programs: 1053685 -> 1053411 (-0.03%)
sends in affected programs: 2821 -> 2547 (-9.71%)
helped: 30
HURT: 2

LOST:   13
GAINED: 13

Broadwell and Haswell had similar results. (Broadwell shown)
total instructions in shared programs: 18149157 -> 18147271 (-0.01%)
instructions in affected programs: 204630 -> 202744 (-0.92%)
helped: 294 / HURT: 121

total cycles in shared programs: 939488196 -> 939508444 (<.01%)
cycles in affected programs: 36394777 -> 36415025 (0.06%)
helped: 718 / HURT: 620

total sends in shared programs: 1005426 -> 1005152 (-0.03%)
sends in affected programs: 2821 -> 2547 (-9.71%)
helped: 30 / HURT: 2

LOST:   2
GAINED: 2

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Tested-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19715>
2023-02-17 03:16:31 +00:00
2022-11-22 19:04:13 +00:00
2022-10-20 22:52:06 +00:00
2022-01-19 15:17:17 +00:00
2022-11-21 23:09:30 +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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