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authorMatt Turner <[email protected]>2015-05-05 20:20:30 -0700
committerMatt Turner <[email protected]>2015-05-07 10:51:05 -0700
commitceb8b739ce37ee041b903643656d9d16c371ff95 (patch)
tree113827b648be84d8660f58c564ff30a1773b869c /src/glsl/nir/nir_opt_algebraic.py
parent8ae559971a692b417acb9fec04386e1e95c619ec (diff)
nir: Recognize trivial min/max.
No changes, but does prevent some regressions in the next commit. Reviewed-by: Jordan Justen <[email protected]> Reviewed-by: Glenn Kennard <[email protected]>
Diffstat (limited to 'src/glsl/nir/nir_opt_algebraic.py')
-rw-r--r--src/glsl/nir/nir_opt_algebraic.py6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/glsl/nir/nir_opt_algebraic.py b/src/glsl/nir/nir_opt_algebraic.py
index fda4bd5b6ff..42f4f479412 100644
--- a/src/glsl/nir/nir_opt_algebraic.py
+++ b/src/glsl/nir/nir_opt_algebraic.py
@@ -90,6 +90,12 @@ optimizations = [
(('bcsel', ('flt', a, b), b, a), ('fmax', a, b)),
(('bcsel', ('inot', 'a@bool'), b, c), ('bcsel', a, c, b)),
(('bcsel', a, ('bcsel', a, b, c), d), ('bcsel', a, b, d)),
+ (('fmin', a, a), a),
+ (('fmax', a, a), a),
+ (('imin', a, a), a),
+ (('imax', a, a), a),
+ (('umin', a, a), a),
+ (('umax', a, a), a),
(('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)),