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Lionel Landwerlin 71a2d80980 nir: prevent peephole from generating invalid NIR
We can't append instructions following a return/halt instruction
because the control flow helpers will modify the successor of the
block containing the return/halt. And the NIR validator enforces that
the return/halt must have the end of the function as successor.

This tends to happen following lower_shader_calls lowering which
inserts halts. This probably doesn't prevent the optimization, it'll
just happen in one of the return shaders after the halt has been
removed.

v2: Move prev block ending check earlier in the function (Daniel)

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Cc: mesa-stable
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12506>
(cherry picked from commit a13e79843e)
2021-08-27 10:05:51 -07:00
.gitlab/issue_templates issue_templates/Bug Report: Rename master branch to main 2021-05-05 12:20:11 -07:00
.gitlab-ci CI: Update Windows quick_gl baseline for mysterious new passes 2021-08-18 15:04:03 -07:00
android AOSP: Update timestamps of target binaries 2021-08-16 11:40:38 -07:00
bin pick-ui: show commit date 2021-08-12 10:06:57 -07:00
build-support configure: commit test files 2017-10-16 16:32:43 -07:00
docs docs: add SHA256 sum for mesa 21.2.1 2021-08-19 10:03:24 -07:00
include crocus: Make the driver loader use PCI IDs for crocus 2021-07-03 06:34:33 +02:00
src nir: prevent peephole from generating invalid NIR 2021-08-27 10:05:51 -07:00
subprojects util: Perfetto SDK v15.0 2021-05-07 13:41:38 +00:00
.dir-locals.el dir-locals.el: Adds White Space support 2016-11-14 19:17:49 +02:00
.editorconfig editorconfig: Use 3-space tabs for .rst 2021-06-22 17:37:55 +00:00
.gitignore intel/tools: Add unit tests for assembler 2019-05-07 14:33:48 -07:00
.gitlab-ci.yml ci: Drop "success" job 2021-08-05 09:25:17 -07:00
.mailmap mailmap: Add two more lines for Alyssa Rosenzweig 2021-07-12 23:45:34 +00:00
.pick_status.json nir: prevent peephole from generating invalid NIR 2021-08-27 10:05:51 -07:00
.travis.yml travis: Download XQuartz from GitHub. 2021-05-29 10:25:16 +00:00
meson.build meson: Remove duplicate xvmc in build summary. 2021-08-13 10:28:38 -07:00
meson_options.txt meson: allow egl_native_platform to be specified 2021-07-26 12:01:54 -07:00
README.rst docs: promote #dri-devel on oftc over freenode 2021-05-24 09:21:48 +00:00
REVIEWERS Fix up leftover "state_trackers" references to "frontends" 2021-07-02 07:35:05 +00:00
VERSION VERSION: bump for 21.2.1 release 2021-08-19 09:12:51 -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.