Mesa3D Graphics Library (Bleeding edge ray tracing branches)
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Ian Romanick 9496a67eec soft-fp64/fadd: Delete a redundant condition check
Previous condition checks already guaranteen that expDiff != 0 and
!(expDiff > 0), so expDiff < 0 is the only option left.

The main purpose of this commit is to prepare for "soft-fp64/fadd: Move
common code out of both branches of an if-statement".

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: 815491 -> 812590 (-0.36%)
instructions in affected programs: 753668 -> 750767 (-0.38%)
helped: 74
HURT: 0
helped stats (abs) min: 3 max: 281 x̄: 39.20 x̃: 25
helped stats (rel) min: 0.29% max: 0.73% x̄: 0.42% x̃: 0.40%
95% mean confidence interval for instructions value: -48.50 -29.91
95% mean confidence interval for instructions %-change: -0.45% -0.40%
Instructions are helped.

total cycles in shared programs: 6813681 -> 6798039 (-0.23%)
cycles in affected programs: 6381699 -> 6366057 (-0.25%)
helped: 74
HURT: 0
helped stats (abs) min: 24 max: 1488 x̄: 211.38 x̃: 149
helped stats (rel) min: 0.20% max: 0.44% x̄: 0.26% x̃: 0.25%
95% mean confidence interval for cycles value: -261.68 -161.08
95% mean confidence interval for cycles %-change: -0.28% -0.25%
Cycles are helped.

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 soft-fp64/fadd: Delete a redundant condition check 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
CleanSpec.mk CleanSpec.mk: Remove HOST_OUT_release 2018-08-02 15:42:40 -06:00
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
appveyor.yml Appveyor: Quickly fix meson build. 2019-11-14 21:45:23 +00:00
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

`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.