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I've deliberately separated this from the general analysis pass infrastructure in order to discuss it independently. The dependency classes defined here refer to state changes of several objects of the program IR, and are fully orthogonal and expected to change less often than the set of analysis passes present in the compiler back-end. The objective is to avoid unnecessary coupling between optimization and analysis passes in the back-end. By doing things in this way the set of flags to be passed to invalidate_analysis() can be determined from knowledge of a single optimization pass and a small set of well specified dependency classes alone -- IOW there is no need to audit all analysis passes to find out which ones might be affected by certain kind of program transformation performed by an optimization pass, as well as the converse, there is no need to audit all optimization passes when writing a new analysis pass to find out which ones can potentially invalidate the result of the analysis. The set of dependency classes defined here is rather conservative and mainly based on the requirements of the few analysis passes already part of the back-end. I've also used them without difficulty with a few additional analysis passes I've written but haven't yet sent for review. Reviewed-by: Matt Turner <mattst88@gmail.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4012> |
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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.