diff options
| author | Rhys Perry <[email protected]> | 2019-06-28 16:13:04 +0100 |
|---|---|---|
| committer | Rhys Perry <[email protected]> | 2019-07-19 16:33:01 +0000 |
| commit | 79801b9d7ddad141d8c0e474d6d10aac11604635 (patch) | |
| tree | 65ac71f554526c512478effcab06bf0bb12182c3 | |
| parent | 32ced14badc14f6b7d3c4c0738c83074ea68ea7d (diff) | |
nir/algebraic: optimize contradictory iand operands
Some of these were found in a few GTAV, Rise of the Tomb Raider and
Shadow of the Tomb Raider shaders.
Results from vkpipeline-db run with ACO:
Totals from affected shaders:
SGPRS: 376 -> 376 (0.00 %)
VGPRS: 220 -> 220 (0.00 %)
Spilled SGPRs: 0 -> 0 (0.00 %)
Spilled VGPRs: 0 -> 0 (0.00 %)
Private memory VGPRs: 0 -> 0 (0.00 %)
Scratch size: 0 -> 0 (0.00 %) dwords per thread
Code Size: 13492 -> 11560 (-14.32 %) bytes
LDS: 6 -> 6 (0.00 %) blocks
Max Waves: 69 -> 69 (0.00 %)
Wait states: 0 -> 0 (0.00 %)
v2: use False instead of 0
Signed-off-by: Rhys Perry <[email protected]>
Reveiewed-by: Alyssa Rosenzweig [email protected]
Reviewed-by: Connor Abbott <[email protected]>
| -rw-r--r-- | src/compiler/nir/nir_opt_algebraic.py | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py index abefbb54756..4c1d547d3a1 100644 --- a/src/compiler/nir/nir_opt_algebraic.py +++ b/src/compiler/nir/nir_opt_algebraic.py @@ -218,6 +218,12 @@ optimizations = [ (('inot', ('ieq', a, b)), ('ine', a, b)), (('inot', ('ine', a, b)), ('ieq', a, b)), + (('iand', ('feq', a, b), ('fne', a, b)), False), + (('iand', ('flt', a, b), ('flt', b, a)), False), + (('iand', ('ieq', a, b), ('ine', a, b)), False), + (('iand', ('ilt', a, b), ('ilt', b, a)), False), + (('iand', ('ult', a, b), ('ult', b, a)), False), + # This helps some shaders because, after some optimizations, they end up # with patterns like (-a < -b) || (b < a). In an ideal world, this sort of # matching would be handled by CSE. |