Emma Anholt 7d2ea9b0ed r300: Request NIR shaders from mesa/st and use NIR-to-TGSI.
This brings us into parity on state tracker paths with most other
supported drivers, and a lot of additional optimization on our shaders.

Results on a subset of shader-db that doesn't crash:

instructions in affected programs: 59502 -> 47991 (-19.35%)
vinst in affected programs: 17633 -> 15197 (-13.82%)
sinst in affected programs: 9296 -> 7319 (-21.27%)
flowcontrol in affected programs: 627 -> 310 (-50.56%)
presub in affected programs: 4220 -> 1554 (-63.18%)
temps in affected programs: 5775 -> 8570 (48.40%)
lits in affected programs: 215 -> 37 (-82.79%)

The temps (register usage) increase is unfortunate, but it seems that
instruction counts tend to be our limit before reg counts are.

Fixes: #3354
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14096>
2021-12-09 22:15:53 +00:00
2021-11-03 20:48:43 +00:00
2021-10-13 20:52:19 +01:00

`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


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