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-rw-r--r--src/compiler/nir/nir_opt_algebraic.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py
index ba277fdfd0e..7fc4ff1d407 100644
--- a/src/compiler/nir/nir_opt_algebraic.py
+++ b/src/compiler/nir/nir_opt_algebraic.py
@@ -377,6 +377,10 @@ optimizations = [
(('ixor', a, a), 0),
(('ixor', a, 0), a),
(('inot', ('inot', a)), a),
+ (('ior', ('iand', a, b), b), b),
+ (('ior', ('ior', a, b), b), ('ior', a, b)),
+ (('iand', ('ior', a, b), b), b),
+ (('iand', ('iand', a, b), b), ('iand', a, b)),
# DeMorgan's Laws
(('iand', ('inot', a), ('inot', b)), ('inot', ('ior', a, b))),
(('ior', ('inot', a), ('inot', b)), ('inot', ('iand', a, b))),