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dc79d7af55
`comps <= (1 << subword_shift)` cannot be guarantee.
Here is an example:
```
8x2 %27 = @load_ssbo (%26 (0x1000001), %4) (access=readonly|reorderable, align_mul=2, align_offset=0, offset_shift=0)
8x2 %32 = ior %25, %31
32 %34 = ult32 %33 (0x7), %12
8x2 %35 = b32csel %34.xx, %27, %32
```
When processing `%34.xx` in `bi_emit_alu` (for `instr->src[0]`),
`comps` is computed from the instr definition (`%35`), but
`subword_shift` from the src bitsize.
In that case comps is greater than `1 << subword_shift`, but this is
supported by `bi_alu_src_index`.
This example is extracted from `dEQP-VK.spirv_assembly.type.vec2.i8.bit_field_insert_offset16_count16_comp`
Reviewed-by: Christoph Pillmayer <christoph.pillmayer@arm.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36638>
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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://docs.mesa3d.org/install.html>`_), but the recommended way is to use Meson (`docs/meson.rst <https://docs.mesa3d.org/meson.html>`_): .. code-block:: sh $ meson setup build $ ninja -C build/ $ sudo ninja -C build/ 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://docs.mesa3d.org/bugs.html>`_). Contributing ------------ Contributions are welcome, and step-by-step instructions can be found in our documentation (`docs/submittingpatches.rst <https://docs.mesa3d.org/submittingpatches.html>`_). Note that Mesa uses gitlab for patches submission, review and discussions.