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authorEric Anholt <[email protected]>2015-01-26 16:48:48 -0800
committerEric Anholt <[email protected]>2015-01-29 11:44:06 -0800
commitfc884eadf1fb188b7dea1a5c2f8ce37c6258e324 (patch)
treee8d6fab039d95df40105cc596e3651545235bf13 /src/glsl
parent2b9c3bace78aaf0728e40b4b4cf7124e6a138696 (diff)
nir: Add variants of some of the comparison simplifications.
We end up with these from TGSI-to-NIR because the pass generating the comparisons doesn't know if the arg is actually a bool input or not. vc4 results: total instructions in shared programs: 41801 -> 41508 (-0.70%) instructions in affected programs: 4253 -> 3960 (-6.89%) Reviewed-by: Matt Turner <[email protected]>
Diffstat (limited to 'src/glsl')
-rw-r--r--src/glsl/nir/nir_opt_algebraic.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/glsl/nir/nir_opt_algebraic.py b/src/glsl/nir/nir_opt_algebraic.py
index 9c62b283634..122555bb4f6 100644
--- a/src/glsl/nir/nir_opt_algebraic.py
+++ b/src/glsl/nir/nir_opt_algebraic.py
@@ -71,6 +71,10 @@ optimizations = [
(('inot', ('fge', a, b)), ('flt', a, b)),
(('inot', ('ilt', a, b)), ('ige', a, b)),
(('inot', ('ige', a, b)), ('ilt', a, b)),
+ (('ine', ('flt', a, b), 0), ('flt', a, b)),
+ (('ine', ('fge', a, b), 0), ('fge', a, b)),
+ (('ine', ('ilt', a, b), 0), ('ilt', a, b)),
+ (('ine', ('ige', a, b), 0), ('ige', a, b)),
(('flt', ('fadd', a, b), 0.0), ('flt', a, ('fneg', b))),
(('fge', ('fadd', a, b), 0.0), ('fge', a, ('fneg', b))),
(('feq', ('fadd', a, b), 0.0), ('feq', a, ('fneg', b))),