Rhys Perry f53d4e5f60 aco: use v_lshrrev_b64 for 64-bit VGPR copies on GFX10+
This isn't worth it on GFX9-, but the proprietary compiler uses it on
GFX10.

fossil-db (Navi):
Totals from 23825 (17.17% of 138791) affected shaders:
CodeSize: 130623632 -> 130623800 (+0.00%); split: -0.00%, +0.00%
Instrs: 25185559 -> 25108597 (-0.31%)
Cycles: 709864740 -> 708910860 (-0.13%)
VMEM: 7205343 -> 7168839 (-0.51%); split: +0.00%, -0.51%
SMEM: 1584946 -> 1575183 (-0.62%)
Copies: 2043134 -> 1966230 (-3.76%)

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7798>
2020-12-04 14:44:48 +00:00
2020-08-06 09:46:48 +00:00
2020-12-03 10:30:04 -08:00
2020-12-01 18:40:18 +00:00
2020-01-18 11:39:32 +01:00
2020-08-06 09:46:48 +00:00
2019-10-18 16:42:40 +00:00
2020-11-09 16:20:45 -08:00

`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 `Freenode's #dri-devel
<irc://chat.freenode.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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