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We can fuse the intermediate multiply with the FMA_RSCALE in the exponent code and save an instruction. Whether this is better than adding a NIR op remains to be seen. total instructions in shared programs: 146614 -> 146190 (-0.29%) instructions in affected programs: 40724 -> 40300 (-1.04%) helped: 157 HURT: 0 helped stats (abs) min: 1.0 max: 9.0 x̄: 2.70 x̃: 2 helped stats (rel) min: 0.22% max: 10.34% x̄: 1.37% x̃: 1.20% 95% mean confidence interval for instructions value: -3.00 -2.40 95% mean confidence interval for instructions %-change: -1.58% -1.15% Instructions are helped. total tuples in shared programs: 128116 -> 127696 (-0.33%) tuples in affected programs: 33421 -> 33001 (-1.26%) helped: 150 HURT: 0 helped stats (abs) min: 1.0 max: 16.0 x̄: 2.80 x̃: 2 helped stats (rel) min: 0.28% max: 4.37% x̄: 1.36% x̃: 1.07% 95% mean confidence interval for tuples value: -3.24 -2.36 95% mean confidence interval for tuples %-change: -1.50% -1.21% Tuples are helped. total clauses in shared programs: 27531 -> 27483 (-0.17%) clauses in affected programs: 719 -> 671 (-6.68%) helped: 20 HURT: 0 helped stats (abs) min: 1.0 max: 8.0 x̄: 2.40 x̃: 1 helped stats (rel) min: 1.61% max: 12.90% x̄: 6.96% x̃: 5.33% 95% mean confidence interval for clauses value: -3.48 -1.32 95% mean confidence interval for clauses %-change: -9.10% -4.82% Clauses are helped. total cycles in shared programs: 12250.81 -> 12233.69 (-0.14%) cycles in affected programs: 1251.50 -> 1234.38 (-1.37%) helped: 141 HURT: 0 helped stats (abs) min: 0.041665999999999315 max: 0.6666670000000003 x̄: 0.12 x̃: 0 helped stats (rel) min: 0.29% max: 5.00% x̄: 1.48% x̃: 1.20% 95% mean confidence interval for cycles value: -0.14 -0.10 95% mean confidence interval for cycles %-change: -1.63% -1.32% Cycles are helped. total arith in shared programs: 4840.25 -> 4822.71 (-0.36%) arith in affected programs: 1324.08 -> 1306.54 (-1.32%) helped: 151 HURT: 0 helped stats (abs) min: 0.041665999999999315 max: 0.6666670000000003 x̄: 0.12 x̃: 0 helped stats (rel) min: 0.29% max: 5.00% x̄: 1.43% x̃: 1.13% 95% mean confidence interval for arith value: -0.13 -0.10 95% mean confidence interval for arith %-change: -1.59% -1.28% Arith are helped. total texture in shared programs: 1666.50 -> 1666.50 (0.00%) texture in affected programs: 0 -> 0 helped: 0 HURT: 0 total vary in shared programs: 639.06 -> 639.06 (0.00%) vary in affected programs: 0 -> 0 helped: 0 HURT: 0 total ldst in shared programs: 9682 -> 9682 (0.00%) ldst in affected programs: 0 -> 0 helped: 0 HURT: 0 total quadwords in shared programs: 116758 -> 116378 (-0.33%) quadwords in affected programs: 28054 -> 27674 (-1.35%) helped: 148 HURT: 2 helped stats (abs) min: 1.0 max: 16.0 x̄: 2.58 x̃: 2 helped stats (rel) min: 0.29% max: 5.13% x̄: 1.54% x̃: 1.23% HURT stats (abs) min: 1.0 max: 1.0 x̄: 1.00 x̃: 1 HURT stats (rel) min: 0.67% max: 0.85% x̄: 0.76% x̃: 0.76% 95% mean confidence interval for quadwords value: -2.94 -2.12 95% mean confidence interval for quadwords %-change: -1.69% -1.33% Quadwords are helped. Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11733> |
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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.rst <https://mesa3d.org/install.html>`_), but the recommended way is to use Meson (`docs/meson.rst <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 `OFTC's #dri-devel <irc://irc.oftc.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.rst <https://mesa3d.org/bugs.html>`_). Contributing ------------ Contributions are welcome, and step-by-step instructions can be found in our documentation (`docs/submittingpatches.rst <https://mesa3d.org/submittingpatches.html>`_). Note that Mesa uses gitlab for patches submission, review and discussions.