338273dedd
Gfx12.5 and later allow the use of two 16-bit immediate values in integer MAD. Gfx11 and Gfx12 allow a single immediate for integer MAD, but that is not helpful where. v2: brw_reg_alloc::build_lane_offsets is only used on Gfx12.5+, so the check around using integer MAD is unnecessary. No shader-db or fossil-db changes on any pre-Gfx12.5 platforms. shader-db: Lunar Lake, Meteor Lake, and DG2 had similar results. (Lunar Lake shown) total instructions in shared programs: 17119962 -> 17118441 (<.01%) instructions in affected programs: 65398 -> 63877 (-2.33%) helped: 32 / HURT: 0 total cycles in shared programs: 895433316 -> 895425578 (<.01%) cycles in affected programs: 13437376 -> 13429638 (-0.06%) helped: 30 / HURT: 2 fossil-db: Lunar Lake, Meteor Lake, and DG2 had similar results. (Lunar Lake shown) Totals: Instrs: 210052706 -> 209550074 (-0.24%) Cycle count: 31486266412 -> 31436238696 (-0.16%); split: -0.16%, +0.00% Totals from 7081 (1.00% of 707082) affected shaders: Instrs: 16864614 -> 16361982 (-2.98%) Cycle count: 6323185782 -> 6273158066 (-0.79%); split: -0.79%, +0.00% Reviewed-by: Matt Turner <mattst88@gmail.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34886>
`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.