diff options
| author | Samuel Pitoiset <[email protected]> | 2018-05-30 10:48:31 +0200 |
|---|---|---|
| committer | Samuel Pitoiset <[email protected]> | 2018-05-31 10:57:16 +0200 |
| commit | 70f9e2589e6be7857c9c874aa1967e8b8608db88 (patch) | |
| tree | 26e222263155a52d8340b9ecea43a4563f20ab35 /src/compiler/nir | |
| parent | c983c6abaf6fae767f404825e0fa913c75914279 (diff) | |
nir: optimize iand(ieq(a, 0), ieq(b, 0)) to ieq(ior(a, b), 0)
Totals from affected shaders:
SGPRS: 80 -> 80 (0.00 %)
VGPRS: 48 -> 48 (0.00 %)
Code Size: 2120 -> 2096 (-1.13 %) bytes
Max Waves: 16 -> 16 (0.00 %)
Only two Rise of Tomb Raider shaders are affected on my side.
Signed-off-by: Samuel Pitoiset <[email protected]>
Reviewed-by: Bas Nieuwenhuizen <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
Diffstat (limited to 'src/compiler/nir')
| -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 21b9acecbe2..ba788f221a3 100644 --- a/src/compiler/nir/nir_opt_algebraic.py +++ b/src/compiler/nir/nir_opt_algebraic.py @@ -282,6 +282,8 @@ optimizations = [ (('iand', ('uge(is_used_once)', a, b), ('uge', a, c)), ('uge', a, ('umax', b, c))), (('iand', ('uge(is_used_once)', a, c), ('uge', b, c)), ('uge', ('umin', a, b), c)), + (('iand', ('ieq', 'a@32', 0), ('ieq', 'b@32', 0)), ('ieq', ('ior', 'a@32', 'b@32'), 0)), + # These patterns can result when (a < b || a < c) => (a < min(b, c)) # transformations occur before constant propagation and loop-unrolling. (('~flt', a, ('fmax', b, a)), ('flt', a, b)), |