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read-only mirror of https://gitlab.freedesktop.org/mesa/mesa
595b9850e0
Generalize the scalar ALU dest fold to handle multi-component results. When a vec source covers contiguous channels with identity swizzle and all uses of the source come from this vec, patch the ALU instruction to write directly into the vec's dest register with the appropriate channel mask. This eliminates redundant MOVs for patterns like vec4(%result.x, %result.y, %result.z, %other) where %result is a vec3 ALU output — the ALU instruction now writes directly to the output register's .xyz channels. shader-db (I915_FS=nir): 233/403 compiled, 3328 alu shader-db (I915_FS=both): nir won 233 (26 identical, 1 tied, 203 better, 3 only), 54 TGSI, 116 neither Assisted-by: Claude |
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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://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.