mirror of
https://gitlab.freedesktop.org/mesa/mesa.git
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read-only mirror of https://gitlab.freedesktop.org/mesa/mesa
3545986962
When nir_rematerialize_derefs_in_use_blocks_impl was first written, I attempted to optimize things a bit by not bothering to re-materialize the sources of deref instructions figuring that the final caller would take care of that. However, in the case of more complex deref chains where the first link or two lives in block A and then another link and the load/store_deref intrinsic live in block B it doesn't work. The code in rematerialize_deref_in_block looks at the tail of the chain, sees that it's already in block B and skips it, not realizing that part of the chain also lives in block A. The easy solution here is to just rematerialize deref sources of deref instructions as well. This may potentially lead to a few more deref instructions being created by the conditions required for that to actually happen are fairly unlikely and, thanks to the caching, it's all linear time regardless. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109603 Fixes: |
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| README.rst | ||
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`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 status
------------
Travis:
.. image:: https://travis-ci.org/mesa3d/mesa.svg?branch=master
:target: https://travis-ci.org/mesa3d/mesa
Appveyor:
.. image:: https://img.shields.io/appveyor/ci/mesa3d/mesa.svg
:target: https://ci.appveyor.com/project/mesa3d/mesa
Coverity:
.. image:: https://scan.coverity.com/projects/139/badge.svg?flat=1
:target: https://scan.coverity.com/projects/mesa
Build & install
---------------
You can find more information in our documentation (`docs/install.html
<https://mesa3d.org/install.html>`_), but the recommended way is to use
Meson (`docs/meson.html <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.html <https://mesa3d.org/bugs.html>`_).
Contributing
------------
Contributions are welcome, and step-by-step instructions can be found in our
documentation (`docs/submittingpatches.html
<https://mesa3d.org/submittingpatches.html>`_).
Note that Mesa uses email mailing-lists for patches submission, review and
discussions.