Ian Romanick
f6992bf624
__fabs64 doesn't do anything special, and the value is still NaN regardless of the value of the MSB. In a strict sense, it's possible that both functions should set the "signal" bit. lts 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: 844558 -> 843005 (-0.18%) instructions in affected programs: 725975 -> 724422 (-0.21%) helped: 53 HURT: 4 helped stats (abs) min: 1 max: 313 x̄: 29.87 x̃: 21 helped stats (rel) min: 0.01% max: 0.94% x̄: 0.30% x̃: 0.22% HURT stats (abs) min: 4 max: 11 x̄: 7.50 x̃: 7 HURT stats (rel) min: 0.03% max: 0.09% x̄: 0.05% x̃: 0.04% 95% mean confidence interval for instructions value: -39.02 -15.47 95% mean confidence interval for instructions %-change: -0.34% -0.21% Instructions are helped. total cycles in shared programs: 6962024 -> 6944998 (-0.24%) cycles in affected programs: 6185470 -> 6168444 (-0.28%) helped: 59 HURT: 0 helped stats (abs) min: 64 max: 2863 x̄: 288.58 x̃: 208 helped stats (rel) min: 0.11% max: 0.87% x̄: 0.33% x̃: 0.27% 95% mean confidence interval for cycles value: -387.15 -190.00 95% mean confidence interval for cycles %-change: -0.38% -0.28% Cycles are helped. Reviewed-by: Jason Ekstrand <jason@jlekstrand.net> Reviewed-by: Matt Turner <mattst88@gmail.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4142>
`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.