diff options
| author | Eric Anholt <[email protected]> | 2015-01-28 10:32:57 -0800 |
|---|---|---|
| committer | Eric Anholt <[email protected]> | 2015-02-18 14:47:50 -0800 |
| commit | ccf14bca4b892a0dffa1d8c244bfabe384d70f98 (patch) | |
| tree | 37693f2bb2623154641f609d2f5d4be9cff1c51a /src/glsl | |
| parent | 8e9dbfff17f29533ad03f3afd25ada8cb6bf1e2b (diff) | |
nir: Add lowering of POW instructions if the lower flag is set.
This could be done in a separate pass like we do in GLSL IR, but it seems
to me like having the definitions of the transformations in the two
directions next to each other makes a lot of sense.
v2: Reorder the comment about the transformation.
Reviewed-by: Kenneth Graunke <[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 76917f53a46..b8b28f1d6d1 100644 --- a/src/glsl/nir/nir_opt_algebraic.py +++ b/src/glsl/nir/nir_opt_algebraic.py @@ -118,6 +118,7 @@ optimizations = [ (('fexp', ('flog', a)), a), # e^ln(a) = a (('flog2', ('fexp2', a)), a), # lg2(2^a) = a (('flog', ('fexp', a)), a), # ln(e^a) = a + (('fpow', a, b), ('fexp2', ('fmul', ('flog2', a), b)), 'options->lower_fpow'), # a^b = 2^(lg2(a)*b) (('fexp2', ('fmul', ('flog2', a), b)), ('fpow', a, b), '!options->lower_fpow'), # 2^(lg2(a)*b) = a^b (('fexp', ('fmul', ('flog', a), b)), ('fpow', a, b), '!options->lower_fpow'), # e^(ln(a)*b) = a^b (('fpow', a, 1.0), a), |