Mesa 3D graphics library
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Alyssa Rosenzweig 040a350b1e pan/bi: Add SSA-based scalar copy propagation
This is a very simple (and slow...) copyprop pass. It's good enough to
get rid of redundant moves from FAU, but it doesn't help for vector
combines.

total instructions in shared programs: 175219 -> 169141 (-3.47%)
instructions in affected programs: 91439 -> 85361 (-6.65%)
helped: 599
HURT: 0
helped stats (abs) min: 1 max: 112 x̄: 10.15 x̃: 6
helped stats (rel) min: 0.30% max: 33.33% x̄: 8.61% x̃: 8.04%
95% mean confidence interval for instructions value: -11.06 -9.24
95% mean confidence interval for instructions %-change: -9.07% -8.16%
Instructions are helped.

total nops in shared programs: 120011 -> 121049 (0.86%)
nops in affected programs: 47355 -> 48393 (2.19%)
helped: 110
HURT: 309
helped stats (abs) min: 1 max: 6 x̄: 2.07 x̃: 2
helped stats (rel) min: 0.44% max: 16.67% x̄: 3.59% x̃: 3.16%
HURT stats (abs)   min: 1 max: 56 x̄: 4.10 x̃: 2
HURT stats (rel)   min: 0.32% max: 80.85% x̄: 6.85% x̃: 3.12%
95% mean confidence interval for nops value: 1.86 3.09
95% mean confidence interval for nops %-change: 3.08% 5.14%
Nops are HURT.

total clauses in shared programs: 40576 -> 40388 (-0.46%)
clauses in affected programs: 3074 -> 2886 (-6.12%)
helped: 106
HURT: 0
helped stats (abs) min: 1 max: 4 x̄: 1.77 x̃: 2
helped stats (rel) min: 0.42% max: 22.22% x̄: 7.17% x̃: 6.90%
95% mean confidence interval for clauses value: -1.91 -1.63
95% mean confidence interval for clauses %-change: -7.80% -6.53%
Clauses are helped.

total quadwords in shared programs: 146590 -> 144937 (-1.13%)
quadwords in affected programs: 59475 -> 57822 (-2.78%)
helped: 493
HURT: 1
helped stats (abs) min: 1 max: 28 x̄: 3.35 x̃: 2
helped stats (rel) min: 0.28% max: 15.38% x̄: 4.08% x̃: 3.85%
HURT stats (abs)   min: 1 max: 1 x̄: 1.00 x̃: 1
HURT stats (rel)   min: 2.38% max: 2.38% x̄: 2.38% x̃: 2.38%
95% mean confidence interval for quadwords value: -3.61 -3.08
95% mean confidence interval for quadwords %-change: -4.33% -3.81%
Quadwords are helped.

total spills in shared programs: 1106 -> 1106 (0.00%)
spills in affected programs: 0 -> 0
helped: 0
HURT: 0

total fills in shared programs: 2241 -> 2241 (0.00%)
fills in affected programs: 0 -> 0
helped: 0
HURT: 0

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8973>
2021-02-11 17:24:37 +00:00
.appveyor appveyor: Use Python3. 2020-08-06 09:46:48 +00:00
.gitlab/issue_templates gitlab: add RADV bug report template 2020-12-18 08:03:04 +00:00
.gitlab-ci zink: GLSL 450 2021-02-11 11:50:41 -05:00
bin bin/post_version: convert the csv.reader into a concrete list 2021-01-21 23:22:36 +00:00
build-support
ci-expects ci/virgl: Fix GLES31 testing on desktop GL. 2021-02-10 03:31:56 +00:00
docs features: mark off GL 4.5 for zink 2021-02-11 11:50:47 -05:00
doxygen
include vulkan: Update XML and headers to 1.2.168 2021-01-27 22:20:52 +00:00
scons Scons: check for timespec_get on windows as well as unices 2021-02-01 19:40:20 +00:00
src pan/bi: Add SSA-based scalar copy propagation 2021-02-11 17:24:37 +00:00
subprojects d3d12: Use DirectX-Headers wrap for d3d12.h 2020-12-16 16:25:54 +00:00
.dir-locals.el
.editorconfig
.gitignore
.gitlab-ci.yml ci: Ensure that jobs inherting the ci-deqp jobs artifact meson logs 2021-02-11 15:32:34 +01:00
.mailmap .mailmap: add and update aliases for Danylo Piliaiev 2020-12-04 15:08:30 +00:00
.travis.yml
Android.common.mk
Android.mk ac/llvm: handle static/shared llvm init separately 2020-08-17 10:47:41 +00:00
CleanSpec.mk
README.rst README: update references to internal docs 2020-06-13 10:42:01 +00:00
REVIEWERS
SConstruct
VERSION VERSION: bump for 21.1.0 cycle 2021-01-13 09:46:19 -08:00
appveyor.yml appveyor: Use Python3. 2020-08-06 09:46:48 +00:00
common.py
meson.build meson: add enable-glcpp-tests option 2021-01-28 15:52:32 +00:00
meson_options.txt meson: add enable-glcpp-tests option 2021-01-28 15:52:32 +00:00

README.rst

`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.