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nir: When faced with a csel on !condition, just flip the arguments.

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total NIR instructions in shared programs: 39426 -> 39411 (-0.04%)
NIR instructions in affected programs:     3748 -> 3733 (-0.40%)

Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
This commit is contained in:
Eric Anholt 2015-02-20 01:18:46 -08:00
parent 8e1152cb33
commit a38038ca5e
1 changed files with 1 additions and 0 deletions
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src/glsl/nir/nir_opt_algebraic.py
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@ -85,6 +85,7 @@ optimizations = [
(('fge', ('fneg', ('fabs', a)), 0.0), ('feq', a, 0.0)),
(('bcsel', ('flt', a, b), a, b), ('fmin', a, b)),
(('bcsel', ('flt', a, b), b, a), ('fmax', a, b)),
(('bcsel', ('inot', 'a@bool'), b, c), ('bcsel', a, c, b)),
(('fmin', ('fmax', a, 0.0), 1.0), ('fsat', a), '!options->lower_fsat'),
(('fsat', a), ('fmin', ('fmax', a, 0.0), 1.0), 'options->lower_fsat'),
(('fsat', ('fsat', a)), ('fsat', a)),