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nir/algebraic: optimize ior(unpack_4x8, unpack_4x8<<8) to unpack_32_2x16

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Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34162>
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Rhys Perry 2025-03-11 14:51:34 +00:00 • committed by Marge Bot
parent 10f4264936
commit f538cae743
1 changed files with 6 additions and 0 deletions
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6
src/compiler/nir/nir_opt_algebraic.py
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@ -2039,6 +2039,12 @@ optimizations.extend([
(('ior', ('ishl', ('u2u32', 'a@8'), 24), ('ior', ('ishl', ('u2u32', 'b@8'), 16), ('ior', ('ishl', ('u2u32', 'c@8'), 8), ('u2u32', 'd@8')))),
('pack_32_4x8', ('vec4', d, c, b, a)), 'options->has_pack_32_4x8'),
# Mixed 16-bit/8-bit loads vectorized to 8-bit vector load and then lowered to 32-bit
(('ior', ('u2u16', ('unpack_32_4x8', a)), ('ishl', ('u2u16', ('unpack_32_4x8.y', a)), 8)),
('unpack_32_2x16_split_x', a), '!options->lower_unpack_32_2x16_split'),
(('ior', ('u2u16', ('unpack_32_4x8.z', a)), ('ishl', ('u2u16', ('unpack_32_4x8.w', a)), 8)),
('unpack_32_2x16_split_y', a), '!options->lower_unpack_32_2x16_split'),
(('extract_u16', ('extract_i16', a, b), 0), ('extract_u16', a, b)),
(('extract_u16', ('extract_u16', a, b), 0), ('extract_u16', a, b)),