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With Anv/Zink, the piglit test : arb_shader_storage_buffer_object-max-ssbo-size -auto -fbo fsexceed is failing validation after copy propagation : load_payload(8) vgrf15:F, vgrf1+0.12<0>:F, vgrf1+0.0<0>:F, vgrf1+0.4<0>:F, vgrf1+0.8<0>:F, vgrf1+0.12<0>:F ../src/intel/compiler/brw_fs_validate.cpp:191: A <= B failed A = inst->src[i].offset / REG_SIZE + regs_read(inst, i) = 2 B = alloc.sizes[inst->src[i].nr] = 1 In most cases it works because src[0] would be at offset 0 and so reading a full reg passes validation, but Anv/Zink started emitting slightly different code adding an offset maybe the size read 2 GRFs. Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Reviewed-by: Francisco Jerez <currojerez@riseup.net> Cc: mesa-stable Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23126>
`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.