diff options
Diffstat (limited to 'src/compiler/nir/nir_opt_algebraic.py')
| -rw-r--r-- | src/compiler/nir/nir_opt_algebraic.py | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py index cc2c2299ab9..dd26805e1a8 100644 --- a/src/compiler/nir/nir_opt_algebraic.py +++ b/src/compiler/nir/nir_opt_algebraic.py @@ -162,6 +162,7 @@ optimizations = [ (('ishr', a, 0), a), (('ushr', 0, a), 0), (('ushr', a, 0), a), + (('iand', 0xff, ('ushr', a, 24)), ('ushr', a, 24)), # Exponential/logarithmic identities (('fexp2', ('flog2', a)), a), # 2^lg2(a) = a (('flog2', ('fexp2', a)), a), # lg2(2^a) = a @@ -213,6 +214,12 @@ optimizations = [ (('f2i', ('ftrunc', a)), ('f2i', a)), (('f2u', ('ftrunc', a)), ('f2u', a)), + # Byte extraction + (('ushr', a, 24), ('extract_u8', a, 3), '!options->lower_extract_byte'), + (('iand', 0xff, ('ushr', a, 16)), ('extract_u8', a, 2), '!options->lower_extract_byte'), + (('iand', 0xff, ('ushr', a, 8)), ('extract_u8', a, 1), '!options->lower_extract_byte'), + (('iand', 0xff, a), ('extract_u8', a, 0), '!options->lower_extract_byte'), + # Subtracts (('fsub', a, ('fsub', 0.0, b)), ('fadd', a, b)), (('isub', a, ('isub', 0, b)), ('iadd', a, b)), |