Job Noorman
1d45e1431f
A sam used as descriptor prefetch has a dummy src which is hard-coded to r48.x. Neither postsched nor legalization are aware this is a dummy src though, causing false dependencies to be added. This often results in unnecessary syncs and/or sub-optimal scheduling decisions. Fix this by adding a "dummy" register flag and teaching postsched and legalization to ignore registers with that flag set. Totals from 24681 (15.00% of 164575) affected shaders: Instrs: 17953856 -> 17953751 (-0.00%); split: -0.00%, +0.00% CodeSize: 36166530 -> 36163008 (-0.01%); split: -0.09%, +0.08% NOPs: 3466012 -> 3465943 (-0.00%); split: -0.00%, +0.00% MOVs: 550649 -> 550613 (-0.01%) (ss): 460398 -> 460402 (+0.00%) (ss)-stall: 1780969 -> 1780916 (-0.00%); split: -0.00%, +0.00% (sy)-stall: 5876641 -> 5876604 (-0.00%); split: -0.00%, +0.00% Preamble Instrs: 4118242 -> 4087950 (-0.74%); split: -1.13%, +0.39% Last helper: 7258848 -> 7258837 (-0.00%); split: -0.00%, +0.00% Cat0: 3795308 -> 3795239 (-0.00%); split: -0.00%, +0.00% Cat1: 746570 -> 746534 (-0.00%) Signed-off-by: Job Noorman <jnoorman@igalia.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36365>
`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.