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authorMatt Turner <mattst88@gmail.com>2015-05-05 20:25:07 -0700
committerMatt Turner <mattst88@gmail.com>2015-05-07 10:51:05 -0700
commitf5cf74d8ba8ce30b9d53b2198e5122ed72f1dcff (patch)
tree84ea1307828e6847adb71a24b66c879fe2879692
parentceb8b739ce37ee041b903643656d9d16c371ff95 (diff)
nir: Recognize (a < c || b < c) as min(a, b) < c.
... and (a >= c) || (b >= c) as max(a, b) >= c. Similar to commit 97e6c1b9. total instructions in shared programs: 6182276 -> 6182180 (-0.00%) instructions in affected programs: 6400 -> 6304 (-1.50%) helped: 68 HURT: 4 Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Glenn Kennard <glenn.kennard@gmail.com>
-rw-r--r--src/glsl/nir/nir_opt_algebraic.py2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/glsl/nir/nir_opt_algebraic.py b/src/glsl/nir/nir_opt_algebraic.py
index 42f4f479412..b0a1f243852 100644
--- a/src/glsl/nir/nir_opt_algebraic.py
+++ b/src/glsl/nir/nir_opt_algebraic.py
@@ -101,7 +101,9 @@ optimizations = [
(('fsat', ('fsat', a)), ('fsat', a)),
(('fmin', ('fmax', ('fmin', ('fmax', a, 0.0), 1.0), 0.0), 1.0), ('fmin', ('fmax', a, 0.0), 1.0)),
(('ior', ('flt', a, b), ('flt', a, c)), ('flt', a, ('fmax', b, c))),
+ (('ior', ('flt', a, c), ('flt', b, c)), ('flt', ('fmin', a, b), c)),
(('ior', ('fge', a, b), ('fge', a, c)), ('fge', a, ('fmin', b, c))),
+ (('ior', ('fge', a, c), ('fge', b, c)), ('fge', ('fmax', a, b), c)),
(('slt', a, b), ('b2f', ('flt', a, b)), 'options->lower_scmp'),
(('sge', a, b), ('b2f', ('fge', a, b)), 'options->lower_scmp'),
(('seq', a, b), ('b2f', ('feq', a, b)), 'options->lower_scmp'),