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Andrii Simiklit a941618a1f glsl: avoid an out-of-bound access while setting up a location for variable
It fixes the following valgrind issue:
==141996== Invalid read of size 4
==141996==    at 0x61F8806: gl_nir_link_uniforms (gl_nir_link_uniforms.c:1788)
==141996==    by 0x60F17AA: gl_nir_link_glsl (gl_nir_linker.c:672)
==141996==    by 0x5C1AEDF: st_link_nir (st_glsl_to_nir.cpp:739)
==141996==    by 0x5C15574: st_link_shader (st_glsl_to_ir.cpp:172)
==141996==    by 0x5C673B0: _mesa_glsl_link_shader (ir_to_mesa.cpp:3117)
==141996==    by 0x5E7B61C: link_program (shaderapi.c:1311)
==141996==    by 0x5E7B61C: link_program_error (shaderapi.c:1419)
==141996==    by 0x5E7CF8A: _mesa_LinkProgram (shaderapi.c:1911)
==141996==    by 0x4923D13: stub_glLinkProgram (piglit-dispatch-gen.c:33956)
==141996==    by 0x1142C0: link_and_use_shaders (shader_runner.c:1636)
==141996==    by 0x1205A6: init_test (shader_runner.c:5347)
==141996==    by 0x121555: piglit_init (shader_runner.c:5725)
==141996==    by 0x4991C84: run_test (piglit_fbo_framework.c:50)

It can be reproduced on `iris` using the following piglit test:
instance-matching-shader-storage-blocks-align-qualifier-mismatch.shader_test

Closes: #3818
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Fixes: 47c35823 ("glsl: fix up location setting for variables pointing to a UBO's base")
Signed-off-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Signed-off-by: Andrii Simiklit <andrii.simiklit@globallogic.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7376>
2020-11-26 15:03:23 +00:00
.appveyor appveyor: Use Python3. 2020-08-06 09:46:48 +00:00
.gitlab/issue_templates gitlab: ask for more detailed info about GPU 2020-08-20 11:56:19 +00:00
.gitlab-ci panfrost: Fix RAW8/16/32 component replication 2020-11-25 16:21:10 +01:00
bin android_stub: Update platform headers to include gralloc1.h. 2020-10-19 18:41:50 +00:00
build-support configure: commit test files 2017-10-16 16:32:43 -07:00
docs docs/features: update list of v3dv supported features 2020-11-26 10:59:40 +00:00
doxygen doxygen: Plumb through gallium/ to automated documentation 2016-05-30 17:53:45 +01:00
include c11/threads: Remove Windows XP support 2020-11-26 07:58:56 +00:00
scons scons: Fix build with llvm-12. 2020-11-26 12:49:11 +00:00
src glsl: avoid an out-of-bound access while setting up a location for variable 2020-11-26 15:03:23 +00:00
subprojects meson: use github URL for wraps instead of completely unreliable wrapdb 2020-01-16 23:06:43 +00:00
.dir-locals.el dir-locals.el: Adds White Space support 2016-11-14 19:17:49 +02:00
.editorconfig docs: fixup indentation 2020-01-18 11:39:32 +01:00
.gitignore intel/tools: Add unit tests for assembler 2019-05-07 14:33:48 -07:00
.gitlab-ci.yml gitlab-ci: drop deprecated platforms that snuck in when nobody was watching 2020-11-20 21:35:23 +00:00
.mailmap .mailmap: add an alias for Andres Gomez 2020-04-30 14:33:20 +03:00
.travis.yml travis: autodetect python version instead of hard-coding it 2019-12-21 20:23:08 +00:00
Android.common.mk tree-wide: fix deprecated GitLab URLs 2020-05-23 15:33:50 +00:00
Android.mk ac/llvm: handle static/shared llvm init separately 2020-08-17 10:47:41 +00:00
appveyor.yml appveyor: Use Python3. 2020-08-06 09:46:48 +00:00
CleanSpec.mk CleanSpec.mk: Remove HOST_OUT_release 2018-08-02 15:42:40 -06:00
common.py scons: Print a deprecation warning about using scons on not windows 2019-10-24 18:33:50 +00:00
meson.build meson: use a feature option for microsoft-clc 2020-11-23 17:31:55 +00:00
meson_options.txt meson: use a feature option for microsoft-clc 2020-11-23 17:31:55 +00:00
README.rst README: update references to internal docs 2020-06-13 10:42:01 +00:00
REVIEWERS REVIEWERS: add VMware reviewers 2019-10-18 16:42:40 +00:00
SConstruct tree-wide: fix deprecated GitLab URLs 2020-05-23 15:33:50 +00:00
VERSION Bump version for 21.0 devel 2020-11-09 16:20:45 -08:00

`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 `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.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.