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read-only mirror of https://gitlab.freedesktop.org/mesa/mesa
7db6fb7f0a
The idea here is to eliminate the flag used for the select condition, not eliminate other flag sources. Previously, if we had an instruction like: gpr = SEL <not in flag> 0 <already in flag> we would process source 0 and try to rewrite_without_flags(). Because it's not in a flag, we think eliminating flags would be useful, so we rewrite it. But this only eliminates the source 2 selection flag, not the source 0 flag. It's valid to do so (but debatably useful). However, we thought we were done, and skipped the setup that ensures source 0's value was actually loaded into a flag. Instead, we should just perform this optimization when processing the selection flag (source 2). By that point, we will have properly set up any flags for sources 0 and 1. And if source 2 is not in a flag, we can decide to rewrite without it. Or, if it's already in a flag, we can keep it as-is. Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/42056> |
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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.