Timur Kristóf e4c91c01e3 ac/nir/ngg: Prepare deferred shader part before adding culling code.
The previous concept was to emit the non-deferred shader part
first, including the culling code, and then modify the
non-deferred part accordingly.

This caused some issues because it was really impossible to tell
which sysvals the deferred part needs after DCE, so we had to
run an additional cleanup pass afterwards.

The new concept is to prepare the deferred part first by applying
reusable variables (from the non-deferred part) and run DCE.
This opens the possibility to accurately gather info about what
the deferred part needs.

This idea is further expanded in the next commits.

Fossil DB stats on Navi 21:

Totals from 17 (0.02% of 79377) affected shaders:
Instrs: 18063 -> 18064 (+0.01%)
CodeSize: 93368 -> 93372 (+0.00%)
Latency: 49889 -> 49899 (+0.02%); split: -0.01%, +0.03%
SALU: 2416 -> 2417 (+0.04%)

Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22073>
2025-03-29 00:47:20 +00:00
2022-11-22 19:04:13 +00:00
2025-02-23 00:31:59 +01:00
2025-03-28 07:40:03 +00:00
2025-01-08 20:37:51 +00:00
2025-02-09 08:13:27 +00:00
2023-11-02 11:37:46 +00:00
2024-05-13 14:32:12 +00:00
2025-02-19 21:57:26 +00:00
2025-02-23 00:31:59 +01:00
2024-11-18 22:29:14 +00:00
2025-01-30 19:02:37 +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://docs.mesa3d.org/install.html>`_), but the recommended way is to use
Meson (`docs/meson.rst <https://docs.mesa3d.org/meson.html>`_):

.. code-block:: sh

  $ meson setup build
  $ ninja -C build/
  $ sudo ninja -C build/ 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
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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
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<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://docs.mesa3d.org/bugs.html>`_).


Contributing
------------

Contributions are welcome, and step-by-step instructions can be found in our
documentation (`docs/submittingpatches.rst
<https://docs.mesa3d.org/submittingpatches.html>`_).

Note that Mesa uses gitlab for patches submission, review and discussions.
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