Job Noorman
04a182417e
Avoid reusing the src of an ALU/SFU instruction when its halfness is different from the dst. A difference in halfness would introduce a (ss) sync and unnecessarily increase ss-stall. Totals from 8261 (5.02% of 164705) affected shaders: Instrs: 10044160 -> 10044390 (+0.00%); split: -0.04%, +0.04% CodeSize: 19875094 -> 19879238 (+0.02%); split: -0.08%, +0.10% NOPs: 2249893 -> 2249273 (-0.03%); split: -0.14%, +0.11% MOVs: 426644 -> 426565 (-0.02%); split: -0.24%, +0.23% COVs: 134819 -> 134810 (-0.01%); split: -0.06%, +0.05% (ss): 264012 -> 260680 (-1.26%); split: -1.34%, +0.08% (sy): 122711 -> 122851 (+0.11%); split: -0.07%, +0.18% (ss)-stall: 1111161 -> 1100625 (-0.95%); split: -1.07%, +0.12% (sy)-stall: 3650422 -> 3651422 (+0.03%); split: -0.15%, +0.17% STPs: 8693 -> 8701 (+0.09%); split: -0.08%, +0.17% LDPs: 16814 -> 16815 (+0.01%); split: -0.10%, +0.11% Preamble Instrs: 2346201 -> 2351217 (+0.21%); split: -0.25%, +0.46% Last helper: 3417842 -> 3417889 (+0.00%); split: -0.07%, +0.08% Cat0: 2486420 -> 2485758 (-0.03%); split: -0.13%, +0.10% Cat1: 613403 -> 614417 (+0.17%); split: -0.21%, +0.37% Cat2: 3742181 -> 3742109 (-0.00%); split: -0.00%, +0.00% Cat6: 81897 -> 81906 (+0.01%); split: -0.03%, +0.04% Cat7: 254014 -> 253955 (-0.02%); split: -0.11%, +0.09% Note that the slight increase in Cat1 is mostly from lowered copies (to swz) and seems to be RA bad luck. Signed-off-by: Job Noorman <jnoorman@igalia.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36376>
`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.