[Mesa-dev] [PATCH 6/7] nir/opt_algebraic: Add some boolean simplifications
Jason Ekstrand
jason at jlekstrand.net
Thu Jan 29 12:50:21 PST 2015
total instructions in shared programs: 8026509 -> 8026469 (-0.00%)
instructions in affected programs: 6338 -> 6298 (-0.63%)
helped: 11
---
src/glsl/nir/nir_opt_algebraic.py | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/src/glsl/nir/nir_opt_algebraic.py b/src/glsl/nir/nir_opt_algebraic.py
index 1dea42a..e3b309c 100644
--- a/src/glsl/nir/nir_opt_algebraic.py
+++ b/src/glsl/nir/nir_opt_algebraic.py
@@ -117,6 +117,11 @@ optimizations = [
(('frcp', ('frcp', a)), a),
(('frcp', ('fsqrt', a)), ('frsq', a)),
(('frcp', ('frsq', a)), ('fsqrt', a)),
+ # Boolean simplifications
+ (('ine', 'a at bool', 0), 'a'),
+ (('ieq', 'a at bool', 0), ('inot', 'a')),
+ (('bcsel', 'a at bool', True, False), 'a'),
+ (('bcsel', 'a at bool', False, True), ('inot', 'a')),
# This one may not be exact
(('feq', ('fadd', a, b), 0.0), ('feq', a, ('fneg', b))),
--
2.2.2
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