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This commit enables clover support for iris. It is intended as a compiler developer tool and not as a new OpenCL implementation from Intel. If you want competent OpenCL, we have a different open-source driver for that built on our LLVM-based IGC compiler stack. However, using clover with iris is becoming increasingly useful as a compiler development tool and I'm getting tired of carrying the patches in a private branch. By default, clover will not initialize on iris. To enable clover, set the IRIS_ENABLE_CLOVER environment variable to "1" or "true". As we've done with the semi-sketchy platform support in ANV, it dumps a very loud WARNING to stderr when enabled. Use at your own risk. NOTE: To anyone intending to benchmark this, the performance is going to be terrible and that is expected. This is in no way representative of the Intel/NIR compiler stack. As it currently stands, clover passes -O0 to clang when compiling OpenCL C to make SPIRV-LLVM-Transator work. When compiling the SPIR-V, clover currently doesn't run any NIR optimizations before it lowers memory access so any NIR optimizations iris attempts to do are severely hampered. One day, clover will get a NIR optimization loop or the ability to hand things off to the driver per-lowering but today is not that day. Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> Reviewed-by: Francisco Jerez <currojerez@riseup.net> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7047>
`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.