Ian Romanick
90430d0488
This simplifies the later patch "i965/fs: Generate better code for fsign multiplied by a value". shader-db results: Broadwell and Skylake had similar results. (Skylake shown) total cycles in shared programs: 372808735 -> 372809551 (<.01%) cycles in affected programs: 1519520 -> 1520336 (0.05%) helped: 243 HURT: 277 helped stats (abs) min: 1 max: 226 x̄: 34.05 x̃: 5 helped stats (rel) min: 0.01% max: 13.88% x̄: 1.46% x̃: 0.27% HURT stats (abs) min: 1 max: 1810 x̄: 32.82 x̃: 5 HURT stats (rel) min: 0.01% max: 16.03% x̄: 1.56% x̃: 0.29% 95% mean confidence interval for cycles value: -7.18 10.32 95% mean confidence interval for cycles %-change: -0.17% 0.46% Inconclusive result (value mean confidence interval includes 0). Sandy Bridge, Haswell and Ivy Bridge had similar results. (Sandy Bridge shown) total cycles in shared programs: 155091458 -> 155091109 (<.01%) cycles in affected programs: 370797 -> 370448 (-0.09%) helped: 24 HURT: 36 helped stats (abs) min: 1 max: 331 x̄: 103.17 x̃: 41 helped stats (rel) min: 0.02% max: 7.70% x̄: 2.07% x̃: 0.56% HURT stats (abs) min: 1 max: 291 x̄: 59.08 x̃: 10 HURT stats (rel) min: 0.02% max: 5.29% x̄: 1.02% x̃: 0.15% 95% mean confidence interval for cycles value: -37.92 26.28 95% mean confidence interval for cycles %-change: -0.88% 0.45% Inconclusive result (value mean confidence interval includes 0). Iron Lake and GM45 had similar results. (GM45 shown) total cycles in shared programs: 129133970 -> 129133978 (<.01%) cycles in affected programs: 111966 -> 111974 (<.01%) helped: 3 HURT: 1 helped stats (abs) min: 2 max: 4 x̄: 2.67 x̃: 2 helped stats (rel) min: <.01% max: <.01% x̄: <.01% x̃: <.01% HURT stats (abs) min: 16 max: 16 x̄: 16.00 x̃: 16 HURT stats (rel) min: 0.07% max: 0.07% x̄: 0.07% x̃: 0.07% 95% mean confidence interval for cycles value: -12.93 16.93 95% mean confidence interval for cycles %-change: -0.05% 0.08% Inconclusive result (value mean confidence interval includes 0). Reviewed-by: Matt Turner <mattst88@gmail.com>
`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.