diff options
Diffstat (limited to 'src/compiler/nir/nir_opt_algebraic.py')
| -rw-r--r-- | src/compiler/nir/nir_opt_algebraic.py | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py index 40f718e5ae2..26e2fc346ed 100644 --- a/src/compiler/nir/nir_opt_algebraic.py +++ b/src/compiler/nir/nir_opt_algebraic.py @@ -882,7 +882,15 @@ optimizations.extend([ (('ishr', 'a@16', 8), ('extract_i8', a, 1), '!options->lower_extract_byte'), (('ishr', 'a@32', 24), ('extract_i8', a, 3), '!options->lower_extract_byte'), (('ishr', 'a@64', 56), ('extract_i8', a, 7), '!options->lower_extract_byte'), - (('iand', 0xff, a), ('extract_u8', a, 0), '!options->lower_extract_byte') + (('iand', 0xff, a), ('extract_u8', a, 0), '!options->lower_extract_byte'), + + # Useless masking before unpacking + (('unpack_half_2x16_split_x', ('iand', a, 0xffff)), ('unpack_half_2x16_split_x', a)), + (('unpack_32_2x16_split_x', ('iand', a, 0xffff)), ('unpack_32_2x16_split_x', a)), + (('unpack_64_2x32_split_x', ('iand', a, 0xffffffff)), ('unpack_64_2x32_split_x', a)), + (('unpack_half_2x16_split_y', ('iand', a, 0xffff0000)), ('unpack_half_2x16_split_y', a)), + (('unpack_32_2x16_split_y', ('iand', a, 0xffff0000)), ('unpack_32_2x16_split_y', a)), + (('unpack_64_2x32_split_y', ('iand', a, 0xffffffff00000000)), ('unpack_64_2x32_split_y', a)), ]) # After the ('extract_u8', a, 0) pattern, above, triggers, there will be |