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| author | Matt Turner <mattst88@gmail.com> | 2015-04-24 11:37:30 -0700 |
|---|---|---|
| committer | Matt Turner <mattst88@gmail.com> | 2015-04-24 11:39:01 -0700 |
| commit | f251ea393bf3d01d242e2eb56cd0f2b0e140f7b2 (patch) | |
| tree | 686c99823128abce6c03be13ec09f1eeb4248a4e /src | |
| parent | 9b577d57029bb643f2b48b80648b4f901818e93b (diff) | |
nir: Transform pow(x, 4) into (x*x)*(x*x).
Diffstat (limited to 'src')
| -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 cdb19241c4..2a2b9561ef 100644 --- a/src/glsl/nir/nir_opt_algebraic.py +++ b/src/glsl/nir/nir_opt_algebraic.py @@ -144,6 +144,7 @@ optimizations = [ (('fexp', ('fmul', ('flog', a), b)), ('fpow', a, b), '!options->lower_fpow'), # e^(ln(a)*b) = a^b (('fpow', a, 1.0), a), (('fpow', a, 2.0), ('fmul', a, a)), + (('fpow', a, 4.0), ('fmul', ('fmul', a, a), ('fmul', a, a))), (('fpow', 2.0, a), ('fexp2', a)), (('fsqrt', ('fexp2', a)), ('fexp2', ('fmul', 0.5, a))), (('fsqrt', ('fexp', a)), ('fexp', ('fmul', 0.5, a))), |