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3f2c54a27f
The code we had for this was a work in progress and not finished. Also, it was geared towards partial writes caused by output packing (i.e. fp16) and was ignoring partial updates caused by conditional writes, which are far more common in our case. This change provides an implementation for tracking conditional writes that works in tandem with the previous spill change to narrow liveness for their spills. Fixes register allocation failures in: dEQP-VK.graphicsfuzz.spv-stable-maze-flatten-copy-composite We also gain one shader from shader-db: total instructions in shared programs: 13339969 -> 13338584 (-0.01%) instructions in affected programs: 185520 -> 184135 (-0.75%) helped: 375 HURT: 130 Instructions are helped. total threads in shared programs: 412038 -> 412040 (<.01%) threads in affected programs: 2 -> 4 (100.00%) helped: 1 HURT: 0 total uniforms in shared programs: 3746581 -> 3746585 (<.01%) uniforms in affected programs: 49 -> 53 (8.16%) helped: 0 HURT: 1 total max-temps in shared programs: 2359960 -> 2359947 (<.01%) max-temps in affected programs: 289 -> 276 (-4.50%) helped: 7 HURT: 0 Max-temps are helped. total sfu-stalls in shared programs: 34351 -> 34359 (0.02%) sfu-stalls in affected programs: 218 -> 226 (3.67%) helped: 35 HURT: 37 Inconclusive result (value mean confidence interval includes 0). total inst-and-stalls in shared programs: 13374320 -> 13372943 (-0.01%) inst-and-stalls in affected programs: 186653 -> 185276 (-0.74%) helped: 373 HURT: 132 Inst-and-stalls are helped. LOST: 0 GAINED: 1 Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12278> |
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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.