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nir: Allow feq/fne/ieq/ine to be optimized with inot. 

instructions in affected programs:     380 -> 376 (-1.05%)
helped:                                2

Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Glenn Kennard <glenn.kennard@gmail.com>
This commit is contained in:
Matt Turner 2015-05-05 22:54:59 -07:00
parent f5cf74d8ba
commit 8e029105c2
1 changed files with 4 additions and 0 deletions
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4
src/glsl/nir/nir_opt_algebraic.py
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@ -83,8 +83,12 @@ optimizations = [
# Comparison simplifications
(('inot', ('flt', a, b)), ('fge', a, b)),
(('inot', ('fge', a, b)), ('flt', a, b)),
(('inot', ('feq', a, b)), ('fne', a, b)),
(('inot', ('fne', a, b)), ('feq', a, b)),
(('inot', ('ilt', a, b)), ('ige', a, b)),
(('inot', ('ige', a, b)), ('ilt', a, b)),
(('inot', ('ieq', a, b)), ('ine', a, b)),
(('inot', ('ine', a, b)), ('ieq', a, b)),
(('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)),