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Exchanging aFracHi / bFracHi and aFracLo / bFracLo should not affect the result of the later call to __add64. The main purpose of this commit is to prepare for "soft-fp64/fadd: Move common code out of both branches of an if-statement". v2: Fix a typo in a comment. Noticed by Matt. 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: 812094 -> 818246 (0.76%) instructions in affected programs: 750271 -> 756423 (0.82%) helped: 0 HURT: 74 HURT stats (abs) min: 7 max: 520 x̄: 83.14 x̃: 59 HURT stats (rel) min: 0.52% max: 1.48% x̄: 0.89% x̃: 0.84% 95% mean confidence interval for instructions value: 63.96 102.31 95% mean confidence interval for instructions %-change: 0.83% 0.95% Instructions are HURT. total cycles in shared programs: 6797157 -> 6816686 (0.29%) cycles in affected programs: 6365175 -> 6384704 (0.31%) helped: 0 HURT: 74 HURT stats (abs) min: 16 max: 1690 x̄: 263.91 x̃: 181 HURT stats (rel) min: 0.14% max: 0.68% x̄: 0.32% x̃: 0.27% 95% mean confidence interval for cycles value: 199.74 328.07 95% mean confidence interval for cycles %-change: 0.29% 0.36% Cycles are HURT. total spills in shared programs: 703 -> 705 (0.28%) spills in affected programs: 703 -> 705 (0.28%) helped: 0 HURT: 1 total fills in shared programs: 1499 -> 1501 (0.13%) fills in affected programs: 1499 -> 1501 (0.13%) helped: 0 HURT: 1 Reviewed-by: Matt Turner <mattst88@gmail.com> 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.