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8d42870798
This (sort of) matches the behavior of nir_opt_algebraic. This ensures that subnormal values are properly flushed to zero. With the aid of "nir/search: Float sources of texture instructions are float users" and "nir/search: Transitively apply is_only_used_as_float", there would have been no shader-db regressions on Intel platforms. However, those caused a significant increase in compile time. Since the instruction regressions were so small, I just dropped those commits rather than improve them. All Haswell and newer platforms had similar results. (Ice Lake shown) total instructions in shared programs: 20125042 -> 20125094 (<.01%) instructions in affected programs: 7184 -> 7236 (0.72%) helped: 0 HURT: 32 HURT stats (abs) min: 1 max: 4 x̄: 1.62 x̃: 2 HURT stats (rel) min: 0.11% max: 1.49% x̄: 0.85% x̃: 0.78% 95% mean confidence interval for instructions value: 1.39 1.86 95% mean confidence interval for instructions %-change: 0.74% 0.96% Instructions are HURT. total cycles in shared programs: 862745586 -> 862746551 (<.01%) cycles in affected programs: 109872 -> 110837 (0.88%) helped: 12 HURT: 23 helped stats (abs) min: 2 max: 774 x̄: 90.83 x̃: 19 helped stats (rel) min: 0.07% max: 25.23% x̄: 3.06% x̃: 0.40% HURT stats (abs) min: 2 max: 1106 x̄: 89.35 x̃: 12 HURT stats (rel) min: 0.08% max: 45.40% x̄: 3.01% x̃: 0.47% 95% mean confidence interval for cycles value: -60.09 115.23 95% mean confidence interval for cycles %-change: -2.21% 4.07% Inconclusive result (value mean confidence interval includes 0). All of the shaders hurt are in either UE4 shooter-game or shooter_demo. Tiger Lake Instructions in all programs: 159893213 -> 159893290 (+0.0%) SENDs in all programs: 6936431 -> 6936431 (+0.0%) Loops in all programs: 38385 -> 38385 (+0.0%) Cycles in all programs: 7019259514 -> 7019260087 (+0.0%) Spills in all programs: 101389 -> 101389 (+0.0%) Fills in all programs: 131532 -> 131532 (+0.0%) Ice Lake Instructions in all programs: 143624164 -> 143624235 (+0.0%) SENDs in all programs: 6980289 -> 6980289 (+0.0%) Loops in all programs: 38383 -> 38383 (+0.0%) Cycles in all programs: 8440082767 -> 8440083238 (+0.0%) Spills in all programs: 102246 -> 102246 (+0.0%) Fills in all programs: 131908 -> 131908 (+0.0%) Skylake Instructions in all programs: 134185424 -> 134185495 (+0.0%) SENDs in all programs: 6938790 -> 6938790 (+0.0%) Loops in all programs: 38356 -> 38356 (+0.0%) Cycles in all programs: 8222366529 -> 8222366923 (+0.0%) Spills in all programs: 98821 -> 98821 (+0.0%) Fills in all programs: 125218 -> 125218 (+0.0%) Reviewed-by: Caio Oliveira <caio.oliveira@intel.com> Fixes: |
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| meson.build | ||
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| README.rst | ||
| VERSION | ||
`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.