diff options
| author | Daniel Schürmann <[email protected]> | 2019-01-25 12:48:44 +0100 |
|---|---|---|
| committer | Daniel Schürmann <[email protected]> | 2019-06-24 18:42:20 +0200 |
| commit | a74f256c58a2c1fca3ce75e5199a04a22768450e (patch) | |
| tree | 872b355b982704f23b2d1024a6489aae87da97d0 /src/compiler/nir | |
| parent | fa6ea16a8daf82886b7fc67c18f9ea87d2388cfd (diff) | |
nir/algebraic: add optimization pattern for ('ult', a, ('and', b, a)) and friends.
These optimizations are based on the fact that
'and(a,b) <= umin(a,b)'.
For AMD, this series moves the optimization from LLVM to NIR,
so currently no vkpipeline-db changes here.
Reviewed-by: Ian Romanick <[email protected]>
Diffstat (limited to 'src/compiler/nir')
| -rw-r--r-- | src/compiler/nir/nir_opt_algebraic.py | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py index f1b5893be88..36e576b7eff 100644 --- a/src/compiler/nir/nir_opt_algebraic.py +++ b/src/compiler/nir/nir_opt_algebraic.py @@ -497,6 +497,10 @@ optimizations = [ (('ult', ('umax', a, b), a), False), (('uge', a, ('umax', b, a)), ('uge', a, b)), (('uge', ('umin', a, b), a), ('uge', b, a)), + (('ult', a, ('iand', b, a)), False), + (('ult', ('ior', a, b), a), False), + (('uge', a, ('iand', b, a)), True), + (('uge', ('ior', a, b), a), True), (('ilt', '#a', ('imax', '#b', c)), ('ior', ('ilt', a, b), ('ilt', a, c))), (('ilt', ('imin', '#a', b), '#c'), ('ior', ('ilt', a, c), ('ilt', b, c))), |