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Faith Ekstrand ad9f1802c0 nir: Properly handle divergence for load_reg
This commit makes three changes:

 1. Default all newly created registers divergent because this is the
    safer default.

 2. Make divergence analysis do something sane with register divergence.
    It's not perfect because divergence analysis isn't able to prove
    registers divergent based on stores but at least if someone uses
    registers a bit they'll end up with safe defaults.  This matches
    what they'd get with nir_ssa_def_init().

 3. Make the load_reg() helper automatically propagate divergence from
    the register.  Because the defaults for both nir_ssa_def_init() and
    nir_decl_reg() are to mark everything divergent, this only means
    that nir_load_reg() of a uniform reg is now uniform.

Putting all these together, nir_from_ssa should now be producing
load_reg intrinsics with the proper uniform information.

Fixes: 7229bffcb1 ("nir: Add intrinsics for register access")
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24153>
(cherry picked from commit 4fd257d20f)
2023-08-31 11:02:12 -07:00
.ci-farms ci/windows: Re-enable Windows builds 2023-07-07 17:40:38 +00:00
.ci-farms-disabled ci/windows: Re-enable Windows builds 2023-07-07 17:40:38 +00:00
.github/workflows add zink to macos ci 2022-11-22 19:04:13 +00:00
.gitlab gitlab: prefill MR template with first multiline commit message 2023-06-01 01:16:38 +00:00
.gitlab-ci ci: Add locked flag to bindgen-cli installation 2023-08-30 10:07:06 -07:00
android meson/ci: promote virtio-experimental to virtio 2023-05-03 22:42:30 +00:00
bin bin/pick-ui: use asyncio.new_event_loop 2023-06-15 22:37:31 +00:00
build-support
docs docs: Update release calendar for 23.2.0-rc2 2023-07-29 15:03:06 -07:00
include drm-uapi/i915_drm.h: Update from drm-next (2023-06-09) 2023-06-27 22:06:19 +00:00
src nir: Properly handle divergence for load_reg 2023-08-31 11:02:12 -07:00
subprojects d3d12: Update and require DirectX-Headers 1.610.0 2023-04-14 03:19:22 +00:00
.clang-format meson: enable the clang-format target 2023-05-29 11:57:08 +00:00
.clang-format-ignore ci: enforce formatting for RADV & ACO 2023-06-16 19:59:52 +00:00
.clang-format-include clang-format: enforce formatting of egl 2023-07-07 23:00:06 +00:00
.dir-locals.el
.editorconfig glsl: Fixes ident issue in glsl_parser.yy and update editorconfig for it 2022-12-16 19:02:17 +00:00
.git-blame-ignore-revs add initial .git-blame-ignore-revs 2023-07-07 23:38:44 +00:00
.gitattributes
.gitignore .gitignore: add VSCode and VSCodium 2022-11-21 23:09:30 +00:00
.gitlab-ci.yml ci: avoid running hardware jobs if there are already trivial issues 2023-07-12 14:08:42 +00:00
.graphqlrc.yml ci/bin: Add utility to find jobs dependencies 2022-08-03 23:10:37 +00:00
.mailmap .mailmap: add an alias for Christian Gmeiner 2023-06-08 09:16:25 +00:00
.pick_status.json nir: Properly handle divergence for load_reg 2023-08-31 11:02:12 -07:00
CODEOWNERS CODEOWNERS: add r300 driver 2023-06-09 19:31:20 +00:00
meson.build meson: Ensure that LLVMSPIRVLib is not required for Clover 2023-08-31 11:02:09 -07:00
meson_options.txt meson: clarify description of opengl option 2023-07-12 12:24:43 +00:00
README.rst
VERSION VERSION: update to 23.2.0-rc2 2023-07-29 14:43:25 -07:00

`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.