dd7135d55d
Previously lower_flrp32 was only set for vertex shaders. Fragment shaders performed a(1-c)+bc lowering during code generation. The shaders with loops hurt are SIMD8 and SIMD16 shaders for a text-identical fragment shader. v2: Rebase on26391cceaa("intel/compiler: Lower ffma on Gen4 and Gen5"). v3: Rebase ona004e95dd7("radeonsi/nir: create si_nir_opts() helper") Iron Lake total instructions in shared programs: 8211385 -> 8185974 (-0.31%) instructions in affected programs: 2503898 -> 2478487 (-1.01%) helped: 9936 HURT: 921 helped stats (abs) min: 1 max: 155 x̄: 2.86 x̃: 2 helped stats (rel) min: 0.10% max: 35.48% x̄: 1.67% x̃: 1.11% HURT stats (abs) min: 1 max: 12 x̄: 3.24 x̃: 2 HURT stats (rel) min: 0.21% max: 13.64% x̄: 1.86% x̃: 0.89% 95% mean confidence interval for instructions value: -2.43 -2.25 95% mean confidence interval for instructions %-change: -1.41% -1.33% Instructions are helped. total cycles in shared programs: 188523186 -> 188401198 (-0.06%) cycles in affected programs: 71541604 -> 71419616 (-0.17%) helped: 11649 HURT: 1871 helped stats (abs) min: 2 max: 930 x̄: 12.62 x̃: 6 helped stats (rel) min: <.01% max: 44.61% x̄: 0.68% x̃: 0.25% HURT stats (abs) min: 2 max: 138 x̄: 13.38 x̃: 8 HURT stats (rel) min: <.01% max: 10.99% x̄: 0.49% x̃: 0.17% 95% mean confidence interval for cycles value: -9.42 -8.63 95% mean confidence interval for cycles %-change: -0.54% -0.50% Cycles are helped. total loops in shared programs: 852 -> 856 (0.47%) loops in affected programs: 0 -> 4 helped: 0 HURT: 4 HURT stats (abs) min: 1 max: 1 x̄: 1.00 x̃: 1 HURT stats (rel) min: 0.00% max: 0.00% x̄: 0.00% x̃: 0.00% 95% mean confidence interval for loops value: 1.00 1.00 95% mean confidence interval for loops %-change: 0.00% 0.00% Loops are HURT. LOST: 3 GAINED: 12 GM45 total instructions in shared programs: 5046407 -> 5033694 (-0.25%) instructions in affected programs: 1303584 -> 1290871 (-0.98%) helped: 5010 HURT: 464 helped stats (abs) min: 1 max: 155 x̄: 2.85 x̃: 2 helped stats (rel) min: 0.10% max: 34.38% x̄: 1.63% x̃: 1.08% HURT stats (abs) min: 1 max: 75 x̄: 3.39 x̃: 2 HURT stats (rel) min: 0.20% max: 13.04% x̄: 1.84% x̃: 0.87% 95% mean confidence interval for instructions value: -2.45 -2.20 95% mean confidence interval for instructions %-change: -1.40% -1.28% Instructions are helped. total cycles in shared programs: 128889476 -> 128812366 (-0.06%) cycles in affected programs: 44845402 -> 44768292 (-0.17%) helped: 6079 HURT: 940 helped stats (abs) min: 2 max: 930 x̄: 15.16 x̃: 8 helped stats (rel) min: <.01% max: 41.03% x̄: 0.71% x̃: 0.25% HURT stats (abs) min: 2 max: 138 x̄: 16.01 x̃: 8 HURT stats (rel) min: <.01% max: 10.99% x̄: 0.50% x̃: 0.17% 95% mean confidence interval for cycles value: -11.63 -10.34 95% mean confidence interval for cycles %-change: -0.58% -0.52% Cycles are helped. total loops in shared programs: 633 -> 635 (0.32%) loops in affected programs: 0 -> 2 helped: 0 HURT: 2 total spills in shared programs: 60 -> 69 (15.00%) spills in affected programs: 54 -> 63 (16.67%) helped: 0 HURT: 1 total fills in shared programs: 92 -> 105 (14.13%) fills in affected programs: 80 -> 93 (16.25%) helped: 0 HURT: 1 LOST: 15 GAINED: 15 Reviewed-by: Jason Ekstrand <jason@jlekstrand.net> [v2] Reviewed-by: Matt Turner <mattst88@gmail.com> [v2]
`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.