diff options
| author | Matt Turner <[email protected]> | 2015-03-17 23:30:43 -0700 |
|---|---|---|
| committer | Matt Turner <[email protected]> | 2015-03-24 14:43:37 -0700 |
| commit | 3fb56805f0dbfe929cd733e15566197bc0733290 (patch) | |
| tree | b28924ffffba6c87fb4fd0b3c181b134cd59767c /src/glsl | |
| parent | c31158d2cb06a864cf44d6d4f2c539e359990d3d (diff) | |
nir: Recognize sat(add(b2f(a), b2f(b))) as a logical OR.
Transform this into b2f(or(a, b)).
instructions in affected programs: 432 -> 430 (-0.46%)
helped: 2
Acked-by: Ian Romanick <[email protected]>
Reviewed-by: Connor Abbott <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
Diffstat (limited to 'src/glsl')
| -rw-r--r-- | src/glsl/nir/nir_opt_algebraic.py | 1 |
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 f956edff3c3..1ee51a05f80 100644 --- a/src/glsl/nir/nir_opt_algebraic.py +++ b/src/glsl/nir/nir_opt_algebraic.py @@ -97,6 +97,7 @@ optimizations = [ (('fmin', ('fmax', ('fmin', ('fmax', a, 0.0), 1.0), 0.0), 1.0), ('fmin', ('fmax', a, 0.0), 1.0)), # Emulating booleans (('fmul', ('b2f', a), ('b2f', b)), ('b2f', ('iand', a, b))), + (('fsat', ('fadd', ('b2f', a), ('b2f', b))), ('b2f', ('ior', a, b))), # Comparison with the same args. Note that these are not done for # the float versions because NaN always returns false on float # inequalities. |