Ian Romanick 5b908db604 nir/flrp: Lower flrp(±1, b, c) and flrp(a, ±1, c) differently
No changes on any other Intel platforms.

v2: Rebase on 424372e5dd5 ("nir: Use the flrp lowering pass instead of
nir_opt_algebraic")

Iron Lake and GM45 had similar results. (Iron Lake shown)
total instructions in shared programs: 8189888 -> 8153912 (-0.44%)
instructions in affected programs: 1199037 -> 1163061 (-3.00%)
helped: 4124
HURT: 10
helped stats (abs) min: 1 max: 40 x̄: 8.73 x̃: 9
helped stats (rel) min: 0.20% max: 86.96% x̄: 4.96% x̃: 3.02%
HURT stats (abs)   min: 1 max: 2 x̄: 1.20 x̃: 1
HURT stats (rel)   min: 1.06% max: 3.92% x̄: 1.62% x̃: 1.06%
95% mean confidence interval for instructions value: -8.84 -8.56
95% mean confidence interval for instructions %-change: -5.12% -4.77%
Instructions are helped.

total cycles in shared programs: 188606710 -> 188426964 (-0.10%)
cycles in affected programs: 27505596 -> 27325850 (-0.65%)
helped: 4026
HURT: 77
helped stats (abs) min: 2 max: 646 x̄: 44.99 x̃: 46
helped stats (rel) min: <.01% max: 94.58% x̄: 2.35% x̃: 0.85%
HURT stats (abs)   min: 2 max: 376 x̄: 17.79 x̃: 6
HURT stats (rel)   min: <.01% max: 2.60% x̄: 0.22% x̃: 0.04%
95% mean confidence interval for cycles value: -44.75 -42.87
95% mean confidence interval for cycles %-change: -2.44% -2.17%
Cycles are helped.

LOST:   3
GAINED: 35

Reviewed-by: Matt Turner <mattst88@gmail.com>
2019-05-06 22:52:29 -07:00
2019-04-29 21:17:19 +00:00
2019-04-15 13:44:41 -07:00
2019-05-03 10:58:05 -07:00
2019-04-15 13:44:34 -07:00
2018-08-16 13:52:56 -07:00
2019-01-29 15:30:25 -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.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.
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