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read-only mirror of https://gitlab.freedesktop.org/mesa/mesa
ecd295bb8b
nir_registers are only supposed to be used temporarily. They may be created by a producer, but then must be immediately lowered prior to optimizing the produced shader. They may be created internally by an optimization pass that doesn't want to deal with phis, but that pass needs to lower them back to phis immediately. Finally they may be created when going out-of-SSA if a backend chooses, but that has to happen late. Regardless, there should be no case where a backend sees a shader that comes in with nir_registers needing to be lowered. The two frontend producers of registers (tgsi_to_nir and mesa/st) both call nir_lower_regs_to_ssa to clean up as they should. Some backend (like intel) already depend on this behaviour. There's no need for other backends to call nir_lower_regs_to_ssa too. Drop the pointless calls as a baby step towards replacing nir_register. Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23181> |
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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.