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read-only mirror of https://gitlab.freedesktop.org/mesa/mesa
41f1dd89a3
This lowers some of the bool-producing comparisons and following bcsels if the bool comparison results is only used in the bcsel. This is a temporary solution before we can fork ntt and optimize the pass sequence there. Right now if we have something like bcsel(a,b,0.0) we lower it to flrp in nir_lower_bool_to_float. The flrp goes to backend where it will be lowered to 2 MADs. However in this case with one of the arguments being a constant one MAD is enough. The backend can figure this out in the constant folding pass, however this is actually one of the last things we need it for. So if we do early translation of the bcsels, than the algebraic pass can clean it up and we can remove more backend code in the next patch. no significant change with RV370 shader-db: total instructions in shared programs: 82497 -> 82496 (<.01%) instructions in affected programs: 1029 -> 1028 (-0.10%) helped: 4 HURT: 3 total temps in shared programs: 12351 -> 12355 (0.03%) temps in affected programs: 10 -> 14 (40.00%) helped: 0 HURT: 4 Reviewed-by: Filip Gawin <filip.gawin@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23927> |
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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://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.