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authorEric Anholt <[email protected]>2015-02-20 01:20:34 -0800
committerEric Anholt <[email protected]>2015-02-21 14:57:14 -0800
commit345c2b288a5f49b82d505eb098847b8e53dde91f (patch)
tree2e7f6be7cafedb130dcbffe003cfdb6cac7d471b
parenta38038ca5e329c074f67399a993a653c8e439cae (diff)
nir: Collapse repeated bcsels on the same argument.
vc4 results: total instructions in shared programs: 39881 -> 39794 (-0.22%) instructions in affected programs: 6302 -> 6215 (-1.38%) Reviewed-by: Matt Turner <[email protected]> Reviewed-by: Connor Abbott <[email protected]>
-rw-r--r--src/glsl/nir/nir_opt_algebraic.py1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/glsl/nir/nir_opt_algebraic.py b/src/glsl/nir/nir_opt_algebraic.py
index c3a884bb1e6..3ea6320d36c 100644
--- a/src/glsl/nir/nir_opt_algebraic.py
+++ b/src/glsl/nir/nir_opt_algebraic.py
@@ -86,6 +86,7 @@ optimizations = [
(('bcsel', ('flt', a, b), a, b), ('fmin', a, b)),
(('bcsel', ('flt', a, b), b, a), ('fmax', a, b)),
(('bcsel', ('inot', 'a@bool'), b, c), ('bcsel', a, c, b)),
+ (('bcsel', a, ('bcsel', a, b, c), d), ('bcsel', a, b, d)),
(('fmin', ('fmax', a, 0.0), 1.0), ('fsat', a), '!options->lower_fsat'),
(('fsat', a), ('fmin', ('fmax', a, 0.0), 1.0), 'options->lower_fsat'),
(('fsat', ('fsat', a)), ('fsat', a)),