Ian Romanick d9674cbe7d intel/brw: Combine constants for src0 of POW instructions too
I tried this when I was working on MR !7698, and it didn't have much
affect back then. Maybe I've added more stuff to my fossil-db?

Gfx12 platforms (Tiger Lake and DG2) are unaffected because the POW
instruction was removed.

shader-db:

Ice Lake and Skylake had similar results. (Ice Lake shown)
total instructions in shared programs: 20301933 -> 20301900 (<.01%)
instructions in affected programs: 9077 -> 9044 (-0.36%)
helped: 33 / HURT: 0

total cycles in shared programs: 842797624 -> 842799471 (<.01%)
cycles in affected programs: 1361911 -> 1363758 (0.14%)
helped: 35 / HURT: 111

LOST:   0
GAINED: 9

fossil-db:

Ice Lake and Skylake had similar results. (Ice Lake shown)
Totals:
Instrs: 165510222 -> 165510163 (-0.00%)
Cycles: 15125195835 -> 15125194484 (-0.00%); split: -0.00%, +0.00%
Spill count: 45204 -> 45196 (-0.02%)
Fill count: 74157 -> 74149 (-0.01%)

Totals from 65 (0.01% of 656118) affected shaders:
Instrs: 57426 -> 57367 (-0.10%)
Cycles: 1667918 -> 1666567 (-0.08%); split: -0.11%, +0.03%
Spill count: 137 -> 129 (-5.84%)
Fill count: 515 -> 507 (-1.55%)

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27552>
2024-03-12 21:31:30 +00:00
2022-11-22 19:04:13 +00:00
2024-01-24 10:02:10 +00:00
2023-11-02 11:37:46 +00:00
2024-01-24 10:53:14 +00:00
2024-01-11 11:05:47 +00:00

`Mesa <https://mesa3d.org>`_ - The 3D Graphics Library
======================================================


Source
------

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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
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Meson (`docs/meson.rst <https://mesa3d.org/meson.html>`_):

.. code-block:: sh

  $ mkdir build
  $ cd build
  $ meson ..
  $ sudo ninja install


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