diff options
| author | Rhys Perry <[email protected]> | 2019-12-10 16:20:56 +0000 |
|---|---|---|
| committer | Marge Bot <[email protected]> | 2020-01-14 17:54:40 +0000 |
| commit | cc3ef3643a6d05f2f08b20828934807e3c49f5af (patch) | |
| tree | 66328c37c37ed9600abce60a7a00f6bbadf2d399 /src/compiler | |
| parent | 1607123ae7504ead15129b2a90506811d9e26b6d (diff) | |
nir/algebraic: a & ~(a >> 31) -> imax(a, 0)
Found in some Doom shaders
Totals from affected shaders:
SGPRS: 30056 -> 30064 (0.03 %)
VGPRS: 28024 -> 28024 (0.00 %)
Spilled SGPRs: 0 -> 0 (0.00 %)
Spilled VGPRs: 0 -> 0 (0.00 %)
Code Size: 4278648 -> 4270852 (-0.18 %) bytes
Max Waves: 1476 -> 1476 (0.00 %)
Instructions: 835287 -> 833338 (-0.23 %)
Signed-off-by: Rhys Perry <[email protected]>
Reviewed-by: Alyssa Rosenzweig <[email protected]>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3089>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3089>
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 633ee8792d9..fbf0f694430 100644 --- a/src/compiler/nir/nir_opt_algebraic.py +++ b/src/compiler/nir/nir_opt_algebraic.py @@ -480,6 +480,7 @@ optimizations.extend([ (('fmin', ('fmin', a, b), b), ('fmin', a, b)), (('umin', ('umin', a, b), b), ('umin', a, b)), (('imin', ('imin', a, b), b), ('imin', a, b)), + (('iand@32', a, ('inot', ('ishr', a, 31))), ('imax', a, 0)), (('fmax', a, ('fneg', a)), ('fabs', a)), (('imax', a, ('ineg', a)), ('iabs', a)), (('fmin', a, ('fneg', a)), ('fneg', ('fabs', a))), |