Rhys Perry 1a6095b36e aco: remove SMEM_instruction::prevent_overflow
This doesn't seem useful anymore, and it seems we forgot to set it in a
few places.

This commit changes the behaviour of the optimizer so that
prevent_overflow is always true.

fossil-db (navi21):
Totals from 7421 (5.47% of 135636) affected shaders:
Instrs: 5402823 -> 5440126 (+0.69%); split: -0.00%, +0.69%
CodeSize: 28731300 -> 28974152 (+0.85%); split: -0.00%, +0.85%
VGPRs: 317528 -> 317552 (+0.01%)
SpillSGPRs: 419 -> 415 (-0.95%)
Latency: 40712478 -> 40783115 (+0.17%); split: -0.01%, +0.19%
InvThroughput: 7612708 -> 7616751 (+0.05%); split: -0.00%, +0.06%
VClause: 123824 -> 123848 (+0.02%); split: -0.09%, +0.11%
SClause: 161915 -> 172741 (+6.69%); split: -0.03%, +6.71%
Copies: 393015 -> 394429 (+0.36%); split: -0.20%, +0.56%
PreSGPRs: 288658 -> 289603 (+0.33%); split: -0.04%, +0.36%

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Qiang Yu <yuq825@gmail.com>
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/8864
Cc: mesa-stable
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22553>
2023-04-19 19:29:48 +00:00
2022-11-22 19:04:13 +00:00
2022-01-19 15:17:17 +00:00
2022-11-21 23:09:30 +00:00
2023-04-10 21:54:05 +00:00
2023-03-26 00:16:26 +00:00
2023-04-13 08:45:17 +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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