diff options
| author | Alyssa Rosenzweig <[email protected]> | 2019-06-04 19:54:12 +0000 |
|---|---|---|
| committer | Alyssa Rosenzweig <[email protected]> | 2019-06-04 19:57:19 +0000 |
| commit | d2d3cc66cf3dfc181780154f69e47c81a08325a1 (patch) | |
| tree | 61c6ce78529ba5b5f39867d7fad475b8ddd16aa3 /src/compiler | |
| parent | c9c1e26106478258d8a91fe8fc5c69d8c3fa5206 (diff) | |
nir/algebraic: Simplify max(abs(a), 0.0) -> abs(a)
This pattern was noticed in glmark's jellyfish scene.
v2: Add inexact qualifier due to NaN behaviour.
Minimal shader-db changes (slightly helped).
Signed-off-by: Alyssa Rosenzweig <[email protected]>
Reviewed-by: Elie Tournier <[email protected]>
Diffstat (limited to 'src/compiler')
| -rw-r--r-- | src/compiler/nir/nir_opt_algebraic.py | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py index 594f521a66b..d36131ae1ac 100644 --- a/src/compiler/nir/nir_opt_algebraic.py +++ b/src/compiler/nir/nir_opt_algebraic.py @@ -399,6 +399,7 @@ optimizations = [ (('imax', a, ('iabs', a)), ('iabs', a)), (('fmax', a, ('fneg', a)), ('fabs', a)), (('imax', a, ('ineg', a)), ('iabs', a)), + (('~fmax', ('fabs', a), 0.0), ('fabs', a)), (('~fmin', ('fmax', a, 0.0), 1.0), ('fsat', a), '!options->lower_fsat'), (('~fmax', ('fmin', a, 1.0), 0.0), ('fsat', a), '!options->lower_fsat'), (('~fmin', ('fmax', a, -1.0), 0.0), ('fneg', ('fsat', ('fneg', a))), '!options->lower_negate && !options->lower_fsat'), |