diff options
| author | Matt Turner <[email protected]> | 2015-05-05 19:50:58 -0700 |
|---|---|---|
| committer | Matt Turner <[email protected]> | 2015-05-07 10:51:05 -0700 |
| commit | 74697e2844a0850ef6b91fb4d34bfa3f6f4bff32 (patch) | |
| tree | bca64de33d03477277d3149b4a0a4f3ea1668b00 /src/glsl/nir/nir_opt_algebraic.py | |
| parent | c636284ee8ee95bb3f3ad31aaf26a9512ec5006c (diff) | |
nir: Recognize imul(b2i(a), b2i(b)) as a logical AND.
Four shaders in Unreal 4's Sun Temple are helped, and gain SIMD16
because we avoid an integer multiplication.
instructions in affected programs: 2353 -> 2245 (-4.59%)
helped: 4
GAINED: 4
Reviewed-by: Jordan Justen <[email protected]>
Reviewed-by: Glenn Kennard <[email protected]>
Diffstat (limited to 'src/glsl/nir/nir_opt_algebraic.py')
| -rw-r--r-- | src/glsl/nir/nir_opt_algebraic.py | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/glsl/nir/nir_opt_algebraic.py b/src/glsl/nir/nir_opt_algebraic.py index 2a2b9561efb..92928cf3a1d 100644 --- a/src/glsl/nir/nir_opt_algebraic.py +++ b/src/glsl/nir/nir_opt_algebraic.py @@ -101,6 +101,7 @@ optimizations = [ (('seq', a, b), ('b2f', ('feq', a, b)), 'options->lower_scmp'), (('sne', a, b), ('b2f', ('fne', a, b)), 'options->lower_scmp'), # Emulating booleans + (('imul', ('b2i', a), ('b2i', b)), ('b2i', ('iand', a, b))), (('fmul', ('b2f', a), ('b2f', b)), ('b2f', ('iand', a, b))), (('fsat', ('fadd', ('b2f', a), ('b2f', b))), ('b2f', ('ior', a, b))), (('iand', 'a@bool', 1.0), ('b2f', a)), |