diff options
| author | Ian Romanick <[email protected]> | 2018-08-01 09:58:19 -0700 |
|---|---|---|
| committer | Ian Romanick <[email protected]> | 2018-08-04 01:12:03 -0700 |
| commit | b92fded6eb6c4367813f2cb69a150fa9d3ce61f1 (patch) | |
| tree | 00ebe531ef50e19d4fc1a3c22cdfe78be65095aa /src/compiler/nir/nir_opt_algebraic.py | |
| parent | 408330ed48e27bbc1ab7d7aefcdd2f3951ac58ca (diff) | |
nir: Collapse more repeated bcsels on the same argument
All Gen platforms had pretty similar results. (Skylake shown)
total instructions in shared programs: 14277230 -> 14277220 (<.01%)
instructions in affected programs: 751 -> 741 (-1.33%)
helped: 4
HURT: 0
helped stats (abs) min: 2 max: 3 x̄: 2.50 x̃: 2
helped stats (rel) min: 1.23% max: 1.40% x̄: 1.32% x̃: 1.32%
95% mean confidence interval for instructions value: -3.42 -1.58
95% mean confidence interval for instructions %-change: -1.47% -1.17%
Instructions are helped.
total cycles in shared programs: 532577947 -> 532577908 (<.01%)
cycles in affected programs: 10641 -> 10602 (-0.37%)
helped: 4
HURT: 3
helped stats (abs) min: 1 max: 40 x̄: 13.75 x̃: 7
helped stats (rel) min: 0.11% max: 3.08% x̄: 1.10% x̃: 0.60%
HURT stats (abs) min: 2 max: 8 x̄: 5.33 x̃: 6
HURT stats (rel) min: 0.13% max: 0.55% x̄: 0.30% x̃: 0.23%
95% mean confidence interval for cycles value: -20.69 9.55
95% mean confidence interval for cycles %-change: -1.63% 0.63%
Inconclusive result (value mean confidence interval includes 0).
Signed-off-by: Ian Romanick <[email protected]>
Reviewed-by: Thomas Helland <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
Diffstat (limited to 'src/compiler/nir/nir_opt_algebraic.py')
| -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 fdd1af9d177..388c6354ff0 100644 --- a/src/compiler/nir/nir_opt_algebraic.py +++ b/src/compiler/nir/nir_opt_algebraic.py @@ -235,6 +235,7 @@ optimizations = [ (('~bcsel', ('fge', b, a), b, a), ('fmax', a, b)), (('bcsel', ('inot', a), b, c), ('bcsel', a, c, b)), (('bcsel', a, ('bcsel', a, b, c), d), ('bcsel', a, b, d)), + (('bcsel', a, b, ('bcsel', a, c, d)), ('bcsel', a, b, d)), (('bcsel', a, True, 'b@bool'), ('ior', a, b)), (('fmin', a, a), a), (('fmax', a, a), a), |