Ian Romanick
6c18a3b497
Six opcodes are added: sdot_4x8_iadd, udot_4x8_uadd, sudot_4x8_iadd, sdot_4x8_iadd_sat, udot_4x8_uadd_sate, and sudot_4x8_iadd_sat. These represent the combinations of integer dot-product and add that operate on packed source vectors. That is, the four 8-bit values for each vector is stored in a single 32-bit integer. Some hardware may prefer to operate on unpacked byte vectors. When such hardware comes to Mesa, we'll have to figure out how to name things. v2: Add nir_op_iudp4a and nir_op_iudp4a_sat instructions. These opcodes are not 2-source commutative. v3: Rename all opcodes to be more like some existing 4x8 opcodes. Suggested by Timur. Change type of packed vector sources to uint32, change types of constant folding variables to have explicit size, and delete some extra casts. All suggested by Jason. v4: Fix typo previously noticed by Alyssa but missed in v2. v5: Add has_sudot_4x8 flag. Requested by Rhys. Reviewed-by: Jason Ekstrand <jason@jlekstrand.net> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12142>
`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.