mirror of
https://gitlab.freedesktop.org/mesa/mesa.git
synced 2026-05-05 11:48:06 +02:00
read-only mirror of https://gitlab.freedesktop.org/mesa/mesa
8e1be9a34a
These have been removed. Unfortunately auto-upgrade doesn't work for jit. (Worse, it seems we don't get a compilation error anymore when compiling the shader, rather llvm will just do a call to a null function in the jitted shaders making it difficult to detect when intrinsics vanish.) Luckily the signed ones are still there, I helped convincing llvm removing them is a bad idea for now, since while the unsigned ones have sort of agreed-upon simplest patterns to replace them with, this is not the case for the signed ones, and they require _significantly_ more complex patterns - to the point that the recognition is IMHO probably unlikely to ever work reliably in practice (due to other optimizations interfering). (Even for the relatively trivial unsigned patterns, llvm already added test cases where recognition doesn't work, unsaturated add followed by saturated add may produce atrocious code.) Nevertheless, it seems there's a serious quest to squash all cpu-specific intrinsics going on, so I'd expect patches to nuke them as well to resurface. Adapt the existing fallback code to match the simple patterns llvm uses and hope for the best. I've verified with lp_test_blend that it does produce the expected saturated assembly instructions. Though our cmp/select build helpers don't use boolean masks, but it doesn't seem to interfere with llvm's ability to recognize the pattern. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=106231 Reviewed-by: Jose Fonseca <jfonseca@vmware.com> |
||
|---|---|---|
| bin | ||
| build-support | ||
| docs | ||
| doxygen | ||
| include | ||
| m4 | ||
| scons | ||
| scripts | ||
| src | ||
| .dir-locals.el | ||
| .editorconfig | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .travis.yml | ||
| Android.common.mk | ||
| Android.mk | ||
| appveyor.yml | ||
| autogen.sh | ||
| CleanSpec.mk | ||
| common.py | ||
| configure.ac | ||
| install-gallium-links.mk | ||
| install-lib-links.mk | ||
| Makefile.am | ||
| meson.build | ||
| meson_options.txt | ||
| README.rst | ||
| REVIEWERS | ||
| SConstruct | ||
| VERSION | ||
`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.