diff options
| author | Eric Anholt <[email protected]> | 2015-01-29 15:50:18 -0800 |
|---|---|---|
| committer | Eric Anholt <[email protected]> | 2015-02-21 14:57:14 -0800 |
| commit | dc982f4a859d800ec3eba95d3c55bbe6af8d6518 (patch) | |
| tree | 0e9047b3c52fe4860ca5fe6d1a8e29ceef223642 | |
| parent | c2ece77678c19f6aee1d9a3ef65a1251a59dd2ae (diff) | |
nir: Add a couple of simplifications of csel operations.
vc4 was already cleaning these up, but it does shave 4 NIR instructions in
shader-db.
Reviewed-by: Matt Turner <[email protected]>
Reviewed-by: Connor Abbott <[email protected]>
| -rw-r--r-- | src/glsl/nir/nir_opt_algebraic.py | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/glsl/nir/nir_opt_algebraic.py b/src/glsl/nir/nir_opt_algebraic.py index 504c9f69054..ef3a0297457 100644 --- a/src/glsl/nir/nir_opt_algebraic.py +++ b/src/glsl/nir/nir_opt_algebraic.py @@ -145,6 +145,9 @@ optimizations = [ # next round of opt_algebraic, get picked up by one of the above two. (('bcsel', '#a', b, c), ('bcsel', ('ine', 'a', 0), b, c)), + (('bcsel', a, b, b), b), + (('fcsel', a, b, b), b), + # Subtracts (('fsub', 0.0, ('fsub', 0.0, a)), a), (('isub', 0, ('isub', 0, a)), a), |