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v2: Add some comments explaining some of the nuance of the shift optimizations. Fix a bug in the shift count calculation of the upper 32-bits. Move the @64 from the variable to the opcode. All suggested by Jordan. No shader-db changes on any Intel platform. fossil-db: Meteor Lake and DG2 had similar results. (Meteor Lake shown) Totals: Instrs: 154507026 -> 154506576 (-0.00%) Cycle count: 17436298868 -> 17436295016 (-0.00%) Max live registers: 32635309 -> 32635297 (-0.00%) Totals from 42 (0.01% of 632575) affected shaders: Instrs: 5616 -> 5166 (-8.01%) Cycle count: 133680 -> 129828 (-2.88%) Max live registers: 1158 -> 1146 (-1.04%) No fossil-db changes on any other Intel platform. Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29148>
`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 $ 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://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.