[Mesa-dev] [PATCH 7/9] nir: Fix broken fsat recognizer.

Eric Anholt eric at anholt.net
Sun Feb 1 13:17:26 PST 2015


We've probably never seen this ridiculous pattern in the wild, so it
didn't matter.
---
 src/glsl/nir/nir_opt_algebraic.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/glsl/nir/nir_opt_algebraic.py b/src/glsl/nir/nir_opt_algebraic.py
index 8a14fe0..84c60ec 100644
--- a/src/glsl/nir/nir_opt_algebraic.py
+++ b/src/glsl/nir/nir_opt_algebraic.py
@@ -83,7 +83,7 @@ optimizations = [
    (('feq', ('fadd', a, b), 0.0), ('feq', a, ('fneg', b))),
    (('fne', ('fadd', a, b), 0.0), ('fne', a, ('fneg', b))),
    (('fge', ('fneg', ('fabs', a)), 0.0), ('feq', a, 0.0)),
-   (('fmin', ('fmax', a, 1.0), 0.0), ('fsat', a)),
+   (('fmin', ('fmax', a, 0.0), 1.0), ('fsat', a)),
    # Logical and bit operations
    (('fand', a, 0.0), 0.0),
    (('iand', a, a), a),
-- 
2.1.4



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