Alyssa Rosenzweig ddcf4b1c7e pan/bi: Lower <32-bit bit_count
While we have a POPCOUNT.i32 instruction, we do not have v2i16/v4i8 variants.
The code generated by lower_to_bitsize doesn't seem any better than what we
could do ourselves, so let's use that.

While we're at it, give bitfield_reverse the same treatment as we have only
BITREV.i32. I don't think we can get <32-bit bitfield_reverse in either GL or
CL, but that seems likely to change in the future. (It looks to be valid SPIR-V,
at least.)

Fixes integer_ops.popcount.

Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18656>
2022-09-19 17:22:58 +00:00
2022-09-19 17:22:58 +00:00
2022-09-12 05:58:12 +00:00
2022-01-19 15:17:17 +00:00
2022-09-12 05:58:13 +00:00
2022-09-12 05:58:12 +00:00
2022-08-03 17:16:14 +00:00

`Mesa <https://mesa3d.org>`_ - The 3D Graphics Library
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