fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-07 00:38:48 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 4
read-only mirror of https://gitlab.freedesktop.org/mesa/mesa
121327 commits 66 branches 934 tags 1 GiB
C 75.3%
C++ 17.5%
Python 2.7%
Rust 1.8%
Assembly 1.4%
Other 1%
Find a file
Ian Romanick d6d63aec18 nir/algebraic: optimize ior(ine(a, 0), ine(b, 0)) to ine(ior(a, b), 0) 
Like 70f9e2589e.  Also scrub the unnecessary size qualifier in both
replacement patterns.

This occurs in a handful of places in the soft-fp64 code, and that is
the primary reason for the change.

Perhaps the patterns that generate umin should be conditioned on
something, but I'm not sure what.  lower_bitops might cover the cases
that matter, but it seems ugly.

Results on the 308 shaders extracted from the fp64 portion of the OpenGL
CTS:

Tiger Lake and Ice Lake had similar results. (Tiger Lake shown)
total instructions in shared programs: 936505 -> 933388 (-0.33%)
instructions in affected programs: 925719 -> 922602 (-0.34%)
helped: 154
HURT: 1
helped stats (abs) min: 1 max: 211 x̄: 35.45 x̃: 16
helped stats (rel) min: 0.34% max: 9.30% x̄: 2.28% x̃: 0.96%
HURT stats (abs)   min: 2342 max: 2342 x̄: 2342.00 x̃: 2342
HURT stats (rel)   min: 2.28% max: 2.28% x̄: 2.28% x̃: 2.28%
95% mean confidence interval for instructions value: -51.21 10.99
95% mean confidence interval for instructions %-change: -2.61% -1.89%
Inconclusive result (value mean confidence interval includes 0).

total cycles in shared programs: 7323502 -> 7306184 (-0.24%)
cycles in affected programs: 7220376 -> 7203058 (-0.24%)
helped: 126
HURT: 1
helped stats (abs) min: 2 max: 946 x̄: 159.10 x̃: 95
helped stats (rel) min: 0.01% max: 9.62% x̄: 0.80% x̃: 0.37%
HURT stats (abs)   min: 2728 max: 2728 x̄: 2728.00 x̃: 2728
HURT stats (rel)   min: 0.37% max: 0.37% x̄: 0.37% x̃: 0.37%
95% mean confidence interval for cycles value: -192.07 -80.66
95% mean confidence interval for cycles %-change: -1.07% -0.51%
Cycles are helped.

total spills in shared programs: 635 -> 817 (28.66%)
spills in affected programs: 635 -> 817 (28.66%)
helped: 0
HURT: 3

total fills in shared programs: 2065 -> 2438 (18.06%)
fills in affected programs: 2019 -> 2392 (18.47%)
helped: 0
HURT: 2

Regular shader-db results:

All Haswell+ platforms had similar results. (Tiger Lake shown)
total instructions in shared programs: 17611506 -> 17611489 (<.01%)
instructions in affected programs: 33442 -> 33425 (-0.05%)
helped: 32
HURT: 6
helped stats (abs) min: 1 max: 6 x̄: 1.69 x̃: 1
helped stats (rel) min: 0.08% max: 1.90% x̄: 0.27% x̃: 0.11%
HURT stats (abs)   min: 1 max: 15 x̄: 6.17 x̃: 5
HURT stats (rel)   min: 0.09% max: 1.50% x̄: 0.65% x̃: 0.55%
95% mean confidence interval for instructions value: -1.70 0.80
95% mean confidence interval for instructions %-change: -0.30% 0.05%
Inconclusive result (value mean confidence interval includes 0).

total cycles in shared programs: 338419218 -> 338418502 (<.01%)
cycles in affected programs: 385795 -> 385079 (-0.19%)
helped: 42
HURT: 3
helped stats (abs) min: 2 max: 192 x̄: 24.57 x̃: 16
helped stats (rel) min: 0.04% max: 2.09% x̄: 0.33% x̃: 0.22%
HURT stats (abs)   min: 64 max: 164 x̄: 105.33 x̃: 88
HURT stats (rel)   min: 0.77% max: 1.58% x̄: 1.09% x̃: 0.93%
95% mean confidence interval for cycles value: -29.76 -2.06
95% mean confidence interval for cycles %-change: -0.40% -0.07%
Cycles are helped.

Ivy Bridge and Sandy Bridge had similar results. (Ivy Bridge shown)
total instructions in shared programs: 11875620 -> 11875617 (<.01%)
instructions in affected programs: 421 -> 418 (-0.71%)
helped: 2
HURT: 0

total cycles in shared programs: 178245336 -> 178245326 (<.01%)
cycles in affected programs: 3425 -> 3415 (-0.29%)
helped: 2
HURT: 0

No changes on Gen4 or Gen5.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4142>
2020-03-18 20:36:29 +00:00
.appveyor Appveyor: Quickly fix meson build. 2019-11-14 21:45:23 +00:00
.gitlab-ci lima: implement zsbuf reload 2020-03-18 08:36:17 +00:00
bin gen_release_notes: resolve ambiguity by renaming version to previous_version and next_version to this_version 2020-03-12 12:57:11 +00:00
build-support configure: commit test files 2017-10-16 16:32:43 -07:00
docs docs: update calendar, add news item, and link releases notes for 19.3.5 2020-03-09 23:04:36 +00:00
doxygen doxygen: Plumb through gallium/ to automated documentation 2016-05-30 17:53:45 +01:00
include dri: add another get shm variant. 2020-02-25 01:23:01 +00:00
scons scons: Bump C standard to gnu11 on macOS 10.15. 2019-11-29 12:38:29 +00:00
src nir/algebraic: optimize ior(ine(a, 0), ine(b, 0)) to ine(ior(a, b), 0) 2020-03-18 20:36:29 +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 ci: Enable testing GLES2-3 on a530 (Dragonboard 820c). 2020-03-17 11:11:51 -07:00
.mailmap .mailmap: use correct email address 2019-12-21 17:50:01 +00:00
.travis.yml travis: autodetect python version instead of hard-coding it 2019-12-21 20:23:08 +00:00
Android.common.mk android: mesa: Revert "android: mesa: revert "Enable asm unconditionally"" 2019-11-12 18:09:43 +00:00
Android.mk freedreno: android: fix build failure on android due to python version 2020-02-07 16:34:49 +00:00
appveyor.yml Appveyor: Quickly fix meson build. 2019-11-14 21:45:23 +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: enable -fno-common by default 2020-03-09 09:11:07 +01:00
meson_options.txt turnip: Drop explicit configure opt-in for turnip 2020-02-06 13:23:40 -08:00
README.rst docs: remove mailing list as way of submitting patches 2019-12-12 09:09:50 +11:00
REVIEWERS REVIEWERS: add VMware reviewers 2019-10-18 16:42:40 +00:00
SConstruct scons: Fix force_scons parsing. 2019-10-26 08:23:48 +01:00
VERSION VERSION: bump after 20.0 branch point 2020-02-02 06:54:14 +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.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 gitlab for patches submission, review and discussions.