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nir: Merge redudant integer clamping.
author
Markus Wick
<markus@selfnet.de>
Sat, 9 Apr 2016 01:31:16 +0000
(
03:31
+0200)
committer
Kenneth Graunke
<kenneth@whitecape.org>
Tue, 12 Apr 2016 01:48:50 +0000
(18:48 -0700)
Dolphin uses them a lot. Range tracking would be better in the long term,
but this two lines works fine for now.
Signed-off-by: Markus Wick <markus@selfnet.de>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
src/compiler/nir/nir_opt_algebraic.py
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diff --git
a/src/compiler/nir/nir_opt_algebraic.py
b/src/compiler/nir/nir_opt_algebraic.py
index 420d9d9330e165ca9d4ae66bb9b0455b6ef2160b..ec8929a6d9f00740d1e3ccb2ae31579393c77a08 100644
(file)
--- a/
src/compiler/nir/nir_opt_algebraic.py
+++ b/
src/compiler/nir/nir_opt_algebraic.py
@@
-137,7
+137,10
@@
optimizations = [
(('~fmax', ('fmin', a, 1.0), 0.0), ('fsat', a), '!options->lower_fsat'),
(('fsat', a), ('fmin', ('fmax', a, 0.0), 1.0), 'options->lower_fsat'),
(('fsat', ('fsat', a)), ('fsat', a)),
(('~fmax', ('fmin', a, 1.0), 0.0), ('fsat', a), '!options->lower_fsat'),
(('fsat', a), ('fmin', ('fmax', a, 0.0), 1.0), 'options->lower_fsat'),
(('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)),
+ (('fmin', ('fmax', ('fmin', ('fmax', a, b), c), b), c), ('fmin', ('fmax', a, b), c)),
+ (('imin', ('imax', ('imin', ('imax', a, b), c), b), c), ('imin', ('imax', a, b), c)),
+ (('umin', ('umax', ('umin', ('umax', a, b), c), b), c), ('umin', ('umax', a, b), c)),
+ (('extract_u8', ('imin', ('imax', a, 0), 0xff), 0), ('imin', ('imax', a, 0), 0xff)),
(('~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', ('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))),