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nir/algebraic: add is_used_once to bcsel(, bcsel()) opts

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fossil-db (navi21):
Totals from 888 (1.12% of 79395) affected shaders:
MaxWaves: 18034 -> 18046 (+0.07%)
Instrs: 3422053 -> 3418446 (-0.11%); split: -0.11%, +0.01%
CodeSize: 18520912 -> 18500604 (-0.11%); split: -0.12%, +0.01%
VGPRs: 53200 -> 53176 (-0.05%)
Latency: 27739575 -> 27735200 (-0.02%); split: -0.06%, +0.04%
InvThroughput: 6784257 -> 6782188 (-0.03%); split: -0.06%, +0.03%
VClause: 83188 -> 83199 (+0.01%); split: -0.00%, +0.02%
SClause: 91350 -> 91362 (+0.01%); split: -0.00%, +0.02%
Copies: 263277 -> 262638 (-0.24%); split: -0.29%, +0.05%
PreSGPRs: 52478 -> 51940 (-1.03%); split: -1.03%, +0.01%
PreVGPRs: 47418 -> 47397 (-0.04%); split: -0.06%, +0.02%
VALU: 2235368 -> 2234513 (-0.04%); split: -0.05%, +0.01%
SALU: 547587 -> 544839 (-0.50%); split: -0.51%, +0.00%
VMEM: 142861 -> 142871 (+0.01%)

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32145>
This commit is contained in:
Rhys Perry 2024-11-19 14:53:31 +00:00 • committed by Marge Bot
parent b8c8482dbb
commit 7ef1585fd6
1 changed files with 2 additions and 2 deletions
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4
src/compiler/nir/nir_opt_algebraic.py
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@ -2154,8 +2154,8 @@ optimizations.extend([
(('fabs', ('bcsel(is_used_once)', b, a, ('fneg', a))), ('fabs', a)),
(('~bcsel', ('flt', a, 0.0), ('fneg', a), a), ('fabs', a)),
(('bcsel', a, ('bcsel', b, c, d), d), ('bcsel', ('iand', a, b), c, d)),
(('bcsel', a, b, ('bcsel', c, b, d)), ('bcsel', ('ior', a, c), b, d)),
(('bcsel', a, ('bcsel(is_used_once)', b, c, d), d), ('bcsel', ('iand', a, b), c, d)),
(('bcsel', a, b, ('bcsel(is_used_once)', c, b, d)), ('bcsel', ('ior', a, c), b, d)),
# Misc. lowering
(('fmod', a, b), ('fsub', a, ('fmul', b, ('ffloor', ('fdiv', a, b)))), 'options->lower_fmod'),