diff options
| author | Jason Ekstrand <[email protected]> | 2018-12-06 13:02:01 -0600 |
|---|---|---|
| committer | Jason Ekstrand <[email protected]> | 2018-12-16 21:03:02 +0000 |
| commit | 4bb1a34727f52ecd4a8f00725d740ae2047cb1dc (patch) | |
| tree | 9d18de5762d84dc7eed5b5c2bdc4b96ced0d2bb1 /src | |
| parent | 3595a0abf43be3ce27d88f5939b257a74e90035b (diff) | |
nir/algebraic: Optimize x2b(xneg(a)) -> a
Shader-db results on Kaby Lake:
total instructions in shared programs: 15072525 -> 15072525 (0.00%)
instructions in affected programs: 0 -> 0
helped: 0
HURT: 0
This helps prevent regressions in later commits.
Reviewed-by: Eric Anholt <[email protected]>
Reviewed-by: Bas Nieuwenhuizen <[email protected]>
Tested-by: Bas Nieuwenhuizen <[email protected]>
Diffstat (limited to 'src')
| -rw-r--r-- | src/compiler/nir/nir_opt_algebraic.py | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py index 28e8a96d4d5..ea24094a927 100644 --- a/src/compiler/nir/nir_opt_algebraic.py +++ b/src/compiler/nir/nir_opt_algebraic.py @@ -85,6 +85,8 @@ optimizations = [ (('fabs', ('u2f', a)), ('u2f', a)), (('iabs', ('iabs', a)), ('iabs', a)), (('iabs', ('ineg', a)), ('iabs', a)), + (('f2b', ('fneg', a)), ('f2b', a)), + (('i2b', ('ineg', a)), ('i2b', a)), (('~fadd', a, 0.0), a), (('iadd', a, 0), a), (('usadd_4x8', a, 0), a), |