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read-only mirror of https://gitlab.freedesktop.org/mesa/mesa
4dd277e233
Instead of tracking pinned things in the register allocator, we split the register allocator into RegAllocator and PinnedRegAllocator. The RegAllocator struct only allows for very simple single-SSA allocations and frees. It tracks locations of everything, what's used, etc. but otherwise knows nothing about pinning or vectors. The new PinnedRegAllocator struct wraps a RegAllocator by taking a mutable reference to it. It provides support for pinning and all the vector stuff. To destroy a PinnedRegAllocator, finish() is called which re-places any evicted SSA values and populates an OpParCopy with any needed copies. Because PinnedRegAllocator owns a mutable reference to the RegAllocator, it's impossible to mix uses of PinnedRegAllocator and RegAllocator. This ensures that, for as long as the pinned version exists, nothing can be allocated which migh escape the pinning. This fixes a bunch of corner cases when register pressure gets tight. Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24998> |
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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.