fbf791e70c
This becomes possible as long as we do val = s_and_b32/64 exec, val before any subgroup operations. This precautional instruction can be removed by the optimizer if 'val' was computed by a VOPC instruction using the same exec mask. Totals from 59 (0.04% of 146267) affected shaders (Navi10): VGPRs: 2808 -> 2816 (+0.28%) CodeSize: 340888 -> 340852 (-0.01%); split: -0.20%, +0.19% Instrs: 61733 -> 61625 (-0.17%); split: -0.18%, +0.01% Cycles: 470636 -> 469112 (-0.32%); split: -0.33%, +0.01% VMEM: 8091 -> 7993 (-1.21%) SMEM: 2736 -> 2719 (-0.62%); split: +0.29%, -0.91% VClause: 1745 -> 1741 (-0.23%) SClause: 2394 -> 2392 (-0.08%); split: -0.25%, +0.17% Copies: 3249 -> 3253 (+0.12%); split: -0.62%, +0.74% Branches: 1210 -> 1206 (-0.33%) PreSGPRs: 3126 -> 3176 (+1.60%); split: -0.16%, +1.76% Reviewed-by: Tony Wasserka <tony.wasserka@gmx.de> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9195>
`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 `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.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.