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nir: Add algebraic opt for no-op iand.

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I lazily generated some of these in VC4 NIR lowering.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
This commit is contained in:
Eric Anholt 2015-07-31 09:12:48 -07:00
parent 63eac5de8f
commit a70f63ab20
1 changed files with 1 additions and 0 deletions
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src/glsl/nir/nir_opt_algebraic.py
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@ -132,6 +132,7 @@ optimizations = [
# Logical and bit operations
(('fand', a, 0.0), 0.0),
(('iand', a, a), a),
(('iand', a, ~0), a),
(('iand', a, 0), 0),
(('ior', a, a), a),
(('ior', a, 0), a),