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e328fbd9f8
This will be useful for eliminating redundant copies from the FS thread payload, particularly in SIMD32 programs. For the moment we only allow FIXED_GRFs with identity strides in order to avoid dealing with composing the arbitrary bidimensional strides that FIXED_GRF regions potentially have, which are rarely used at the IR level anyway. This enables the following commit allowing block-propagation of FIXED_GRF LOAD_PAYLOAD copies, and prevents the following shader-db regressions (including SIMD32 programs) in combination with the interpolation rework part of this series. On ICL: total instructions in shared programs: 20484665 -> 20529650 (0.22%) instructions in affected programs: 6031235 -> 6076220 (0.75%) helped: 5 HURT: 42073 total spills in shared programs: 8748 -> 8925 (2.02%) spills in affected programs: 186 -> 363 (95.16%) helped: 5 HURT: 9 total fills in shared programs: 8663 -> 8960 (3.43%) fills in affected programs: 647 -> 944 (45.90%) helped: 5 HURT: 9 On SKL: total instructions in shared programs: 18937442 -> 19128162 (1.01%) instructions in affected programs: 8378187 -> 8568907 (2.28%) helped: 39 HURT: 68176 LOST: 1 GAINED: 4 On SNB: total instructions in shared programs: 14094685 -> 14243499 (1.06%) instructions in affected programs: 7751062 -> 7899876 (1.92%) helped: 623 HURT: 53586 LOST: 7 GAINED: 25 Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> |
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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.html <https://mesa3d.org/install.html>`_), but the recommended way is to use Meson (`docs/meson.html <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 `Freenode's #dri-devel <irc://chat.freenode.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.html <https://mesa3d.org/bugs.html>`_). Contributing ------------ Contributions are welcome, and step-by-step instructions can be found in our documentation (`docs/submittingpatches.html <https://mesa3d.org/submittingpatches.html>`_). Note that Mesa uses gitlab for patches submission, review and discussions.