Mesa3D Graphics Library (Bleeding edge ray tracing branches)
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Ian Romanick 8eb36c9129 intel/fs: Emit logical-not of operands on Gen8+
On Gen8+ specifying negation of a logical operation such as AND actually
performs a logical-not.  Take advantage of this to generate fewer
instructions.

v2: Major rebase.  Use nir_src_as_alu_instr.  Fix swizzle handling.

No changes on any pre-Gen8 platform.

Skylake and Broadwell had similar results. (Broadwell shown)
total instructions in shared programs: 15466902 -> 15466274 (<.01%)
instructions in affected programs: 1262953 -> 1262325 (-0.05%)
helped: 682
HURT: 4
helped stats (abs) min: 1 max: 5 x̄: 1.02 x̃: 1
helped stats (rel) min: 0.03% max: 2.40% x̄: 0.18% x̃: 0.04%
HURT stats (abs)   min: 1 max: 62 x̄: 17.50 x̃: 3
HURT stats (rel)   min: 0.03% max: 1.89% x̄: 0.53% x̃: 0.10%
95% mean confidence interval for instructions value: -1.10 -0.73
95% mean confidence interval for instructions %-change: -0.19% -0.15%
Instructions are helped.

total cycles in shared programs: 410996093 -> 410950440 (-0.01%)
cycles in affected programs: 144389048 -> 144343395 (-0.03%)
helped: 519
HURT: 51
helped stats (abs) min: 1 max: 1060 x̄: 104.46 x̃: 140
helped stats (rel) min: 0.01% max: 10.98% x̄: 0.34% x̃: 0.03%
HURT stats (abs)   min: 1 max: 4060 x̄: 167.90 x̃: 22
HURT stats (rel)   min: <.01% max: 8.20% x̄: 0.96% x̃: 0.25%
95% mean confidence interval for cycles value: -97.16 -63.02
95% mean confidence interval for cycles %-change: -0.32% -0.13%
Cycles are helped.

total spills in shared programs: 95311 -> 95329 (0.02%)
spills in affected programs: 881 -> 899 (2.04%)
helped: 0
HURT: 4

total fills in shared programs: 93629 -> 93634 (<.01%)
fills in affected programs: 794 -> 799 (0.63%)
helped: 1
HURT: 2

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2019-03-01 12:42:14 -08:00
.gitlab-ci gitlab-ci: install xmllint to validate 00-mesa-defaults.conf 2019-02-28 17:30:48 +00:00
bin get-pick-list: Add --pretty=medium to the arguments for Cc patches 2019-02-13 08:59:30 -08:00
build-support configure: commit test files 2017-10-16 16:32:43 -07:00
docs docs: mention "Allow commits from members who can merge..." 2019-02-26 11:27:10 +00:00
doxygen doxygen: Plumb through gallium/ to automated documentation 2016-05-30 17:53:45 +01:00
include include/CL: Update to the latest OpenCL 2.2 headers 2019-02-26 21:02:07 +01:00
m4 configure: allow building with python3 2018-10-31 19:15:50 +00:00
scons scons: Workaround failures with MSVC when using SCons 3.0.[2-4]. 2019-02-28 21:26:15 +00:00
scripts appveyor: Revert commits adding Cygwin support. 2019-01-25 14:13:26 +00:00
src intel/fs: Emit logical-not of operands on Gen8+ 2019-03-01 12:42:14 -08:00
.dir-locals.el dir-locals.el: Adds White Space support 2016-11-14 19:17:49 +02:00
.editorconfig editorconfig: Add max_line_length property 2019-01-10 15:50:34 +02:00
.gitattributes
.gitignore .gitignore: list *.orig and *.rej 2017-09-06 17:48:50 +01:00
.gitlab-ci.yml gitlab-ci: install xmllint to validate 00-mesa-defaults.conf 2019-02-28 17:30:48 +00:00
.mailmap .mailmap: Add a few more alises for myself 2019-02-13 12:03:41 -08:00
.travis.yml travis: fix osx make build 2019-02-07 20:14:14 +00:00
Android.common.mk build: stop defining unused VERSION 2018-11-26 22:05:02 +00:00
Android.mk iris: add Android build 2019-02-21 10:26:10 -08:00
CleanSpec.mk CleanSpec.mk: Remove HOST_OUT_release 2018-08-02 15:42:40 -06:00
Makefile.am automake: Add --enable-autotools to distcheck flags 2019-01-30 19:32:44 +00:00
README.rst README: Drop the badges from the readme 2019-02-07 12:46:17 -06:00
REVIEWERS REVIEWERS: add Vulkan reviewer group 2018-11-13 17:25:02 +00:00
SConstruct scons: Require python 2.7 2018-08-16 13:52:56 -07:00
VERSION bump version for 19.0 branch 2019-01-29 15:30:25 -08:00
appveyor.yml appveyor: Revert commits adding Cygwin support. 2019-01-25 14:13:26 +00:00
autogen.sh
common.py scons/svga: remove opt from the list of valid build types 2018-10-26 12:09:00 -06:00
configure.ac configure: fix test portability 2019-02-24 19:26:15 +00:00
install-gallium-links.mk gallium: Fix install-gallium-links.mk on non-bash /bin/sh 2016-10-10 08:56:12 -07:00
install-lib-links.mk
meson.build d3d: meson: do not prefix user provided d3d-drivers-path 2019-02-25 16:07:02 +00:00
meson_options.txt iris: Initial commit of a new 'iris' driver for Intel Gen8+ GPUs. 2019-02-21 10:26:04 -08:00

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.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.