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Uniforms have the same value in all invocations, therefore they can safely be reused by invocations even after repacking. This saves several instructions from culling shaders, mainly UBO loads and such. We exclude uniform floats, because those would harm the VGPR usage of the shaders too much. Fossil DB results on Sienna Cichlid (with NGG culling on): Totals from 55379 (43.05% of 128647) affected shaders: VGPRs: 1926472 -> 1925360 (-0.06%); split: -0.07%, +0.01% SpillSGPRs: 139 -> 330 (+137.41%) CodeSize: 159472988 -> 157462856 (-1.26%); split: -1.27%, +0.00% MaxWaves: 1571492 -> 1571412 (-0.01%) Instrs: 30665685 -> 30302076 (-1.19%); split: -1.21%, +0.02% Latency: 127385148 -> 126723891 (-0.52%); split: -0.55%, +0.03% InvThroughput: 21096298 -> 20773069 (-1.53%); split: -1.53%, +0.00% VClause: 514792 -> 511231 (-0.69%); split: -0.83%, +0.13% SClause: 713959 -> 679556 (-4.82%); split: -4.84%, +0.02% Copies: 2975106 -> 2828185 (-4.94%); split: -5.39%, +0.45% Branches: 1201921 -> 1152766 (-4.09%) PreSGPRs: 1753786 -> 1892848 (+7.93%); split: -0.00%, +7.93% PreVGPRs: 1590522 -> 1583574 (-0.44%); split: -0.44%, +0.00% Signed-off-by: Timur Kristóf <timur.kristof@gmail.com> Reviewed-by: Daniel Schürmann <daniel@schuermann.dev> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10525> |
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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.