0c2b3a7fc0
No shader-db changes Ice Lake, Iron Lake, or GM45 as these platforms lack a LRP instruction. v2: Convert the pattern directly to flrp. There were negligible improvements on Gen4 and Gen5, and Gen11 was actually hurt. I believe the problem is this optimization conflicts with the (1-x)*y => ffma(-x, y, y) optimization on Gen11. Skylake total instructions in shared programs: 15046487 -> 15041996 (-0.03%) instructions in affected programs: 194681 -> 190190 (-2.31%) helped: 880 HURT: 20 helped stats (abs) min: 1 max: 19 x̄: 5.13 x̃: 4 helped stats (rel) min: 0.19% max: 36.36% x̄: 4.85% x̃: 3.33% HURT stats (abs) min: 1 max: 1 x̄: 1.00 x̃: 1 HURT stats (rel) min: 0.11% max: 1.06% x̄: 0.28% x̃: 0.17% 95% mean confidence interval for instructions value: -5.25 -4.73 95% mean confidence interval for instructions %-change: -5.11% -4.36% Instructions are helped. total cycles in shared programs: 354340839 -> 354303333 (-0.01%) cycles in affected programs: 1753622 -> 1716116 (-2.14%) helped: 786 HURT: 182 helped stats (abs) min: 1 max: 1842 x̄: 56.52 x̃: 22 helped stats (rel) min: 0.03% max: 43.17% x̄: 3.90% x̃: 2.84% HURT stats (abs) min: 1 max: 440 x̄: 37.99 x̃: 9 HURT stats (rel) min: 0.03% max: 29.37% x̄: 1.96% x̃: 0.32% 95% mean confidence interval for cycles value: -45.90 -31.59 95% mean confidence interval for cycles %-change: -3.09% -2.50% Cycles are helped. All Gen6-Gen8 platforms had similar results. (Broadwell shown) total instructions in shared programs: 15055907 -> 15051466 (-0.03%) instructions in affected programs: 196370 -> 191929 (-2.26%) helped: 871 HURT: 26 helped stats (abs) min: 1 max: 19 x̄: 5.13 x̃: 4 helped stats (rel) min: 0.19% max: 36.36% x̄: 4.76% x̃: 3.27% HURT stats (abs) min: 1 max: 1 x̄: 1.00 x̃: 1 HURT stats (rel) min: 0.11% max: 1.06% x̄: 0.24% x̃: 0.12% 95% mean confidence interval for instructions value: -5.21 -4.69 95% mean confidence interval for instructions %-change: -4.99% -4.24% Instructions are helped. total cycles in shared programs: 387729170 -> 387699745 (<.01%) cycles in affected programs: 1816409 -> 1786984 (-1.62%) helped: 788 HURT: 172 helped stats (abs) min: 1 max: 662 x̄: 47.29 x̃: 22 helped stats (rel) min: 0.03% max: 31.26% x̄: 3.55% x̃: 2.76% HURT stats (abs) min: 1 max: 404 x̄: 45.59 x̃: 14 HURT stats (rel) min: 0.03% max: 22.92% x̄: 1.53% x̃: 0.43% 95% mean confidence interval for cycles value: -35.69 -25.61 95% mean confidence interval for cycles %-change: -2.88% -2.40% Cycles are helped. total fills in shared programs: 34712 -> 34710 (<.01%) fills in affected programs: 7 -> 5 (-28.57%) helped: 1 HURT: 0 LOST: 0 GAINED: 2 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.