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v2: Go to extra effort to avoid flow control inserted to implement short-circuit evaluation rules. 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: 797779 -> 796849 (-0.12%) instructions in affected programs: 3499 -> 2569 (-26.58%) helped: 21 HURT: 0 helped stats (abs) min: 8 max: 112 x̄: 44.29 x̃: 44 helped stats (rel) min: 16.09% max: 33.15% x̄: 25.72% x̃: 24.62% 95% mean confidence interval for instructions value: -55.94 -32.63 95% mean confidence interval for instructions %-change: -28.14% -23.30% Instructions are helped. total cycles in shared programs: 6601355 -> 6588351 (-0.20%) cycles in affected programs: 25376 -> 12372 (-51.25%) helped: 21 HURT: 0 helped stats (abs) min: 156 max: 1410 x̄: 619.24 x̃: 526 helped stats (rel) min: 42.39% max: 53.98% x̄: 50.12% x̃: 50.75% 95% mean confidence interval for cycles value: -776.58 -461.89 95% mean confidence interval for cycles %-change: -51.57% -48.67% Cycles are helped. Reviewed-by: Jason Ekstrand <jason@jlekstrand.net> [v1] Reviewed-by: Matt Turner <mattst88@gmail.com> [v1] Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4142> |
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`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.