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Logical sends and load_payload can have large VGRFs that cannot be split. Once all of the lowering passes and optimization passes that might eliminate any of those instructions have completed, try to split larger VGRFs one last time. Register allocation can only handle VGRFs up to a certain size, so this is the last opportunity to prevent later failures due to VGRFs that are too large. Closes: #13239 shader-db: Lunar Lake, Meteor Lake, DG2, and Tiger Lake had similar results. (Lunar Lake shown) total instructions in shared programs: 17114494 -> 17114496 (<.01%) instructions in affected programs: 2790 -> 2792 (0.07%) helped: 2 / HURT: 4 total cycles in shared programs: 886617364 -> 886315282 (-0.03%) cycles in affected programs: 4067540 -> 3765458 (-7.43%) helped: 48 / HURT: 9 Ice Lake and Skylake had similar restuls. (Ice Lake shown) total instructions in shared programs: 20799801 -> 20799691 (<.01%) instructions in affected programs: 1210 -> 1100 (-9.09%) helped: 1 / HURT: 0 total cycles in shared programs: 865495386 -> 865498990 (<.01%) cycles in affected programs: 60132 -> 63736 (5.99%) helped: 2 / HURT: 1 total spills in shared programs: 3987 -> 3981 (-0.15%) spills in affected programs: 24 -> 18 (-25.00%) helped: 1 / HURT: 0 total fills in shared programs: 3535 -> 3519 (-0.45%) fills in affected programs: 36 -> 20 (-44.44%) helped: 1 / HURT: 0 fossil-db: All Intel platforms had similar results. (Lunar Lake shown) Totals: Instrs: 208647246 -> 208646499 (-0.00%); split: -0.00%, +0.00% Cycle count: 31257819536 -> 31263957016 (+0.02%); split: -0.02%, +0.04% Max live registers: 66160877 -> 66155728 (-0.01%) Totals from 34703 (4.91% of 707053) affected shaders: Instrs: 13766639 -> 13765892 (-0.01%); split: -0.02%, +0.01% Cycle count: 3693572086 -> 3699709566 (+0.17%); split: -0.15%, +0.32% Max live registers: 4843852 -> 4838703 (-0.11%) Reviewed-by: Caio Oliveira <caio.oliveira@intel.com> Reviewed-by: Matt Turner <mattst88@gmail.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36202> |
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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://docs.mesa3d.org/install.html>`_), but the recommended way is to use Meson (`docs/meson.rst <https://docs.mesa3d.org/meson.html>`_): .. code-block:: sh $ meson setup build $ ninja -C build/ $ sudo ninja -C build/ 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://docs.mesa3d.org/bugs.html>`_). Contributing ------------ Contributions are welcome, and step-by-step instructions can be found in our documentation (`docs/submittingpatches.rst <https://docs.mesa3d.org/submittingpatches.html>`_). Note that Mesa uses gitlab for patches submission, review and discussions.