diff options
| author | Ian Romanick <[email protected]> | 2019-02-27 20:15:32 -0800 |
|---|---|---|
| committer | Ian Romanick <[email protected]> | 2019-03-28 15:35:52 -0700 |
| commit | ae21b52e1dc5db5f7678ce9817364384dc0cbc87 (patch) | |
| tree | 5a65de1be7fcface5b10b6ecec7f65f01e6b0967 /src/compiler/nir | |
| parent | cbad201c2b34297dda11ffa414de2ef781225259 (diff) | |
nir/algebraic: Add missing 16-bit extract_[iu]8 patterns
No shader-db changes on any Intel platform.
v2: Use a loop to generate patterns. Suggested by Jason.
v3: Fix a copy-and-paste bug in the extract_[ui] of ishl loop that would
replace an extract_i8 with and extract_u8. This broke ~180 tests. This
bug was introduced in v2.
Reviewed-by: Matt Turner <[email protected]> [v1]
Reviewed-by: Dylan Baker <[email protected]> [v2]
Acked-by: Jason Ekstrand <[email protected]> [v2]
Diffstat (limited to 'src/compiler/nir')
| -rw-r--r-- | src/compiler/nir/nir_opt_algebraic.py | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py index 42cf7673071..bdf70787937 100644 --- a/src/compiler/nir/nir_opt_algebraic.py +++ b/src/compiler/nir/nir_opt_algebraic.py @@ -611,8 +611,10 @@ optimizations = [ ('unpack_64_2x32_split_y', a)), a), # Byte extraction + (('ushr', 'a@16', 8), ('extract_u8', a, 1), '!options->lower_extract_byte'), (('ushr', 'a@32', 24), ('extract_u8', a, 3), '!options->lower_extract_byte'), (('ushr', 'a@64', 56), ('extract_u8', a, 7), '!options->lower_extract_byte'), + (('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') @@ -630,6 +632,7 @@ optimizations.extend([(('extract_u8', ('extract_u16', a, 1), 0), ('extract_u8', # After the ('extract_[iu]8', a, 3) patterns, above, trigger, there will be # patterns like those below. for op in ('extract_u8', 'extract_i8'): + optimizations.extend([((op, ('ishl', 'a@16', 8), 1), (op, a, 0))]) optimizations.extend([((op, ('ishl', 'a@32', 24 - 8 * i), 3), (op, a, i)) for i in range(2, -1, -1)]) optimizations.extend([((op, ('ishl', 'a@64', 56 - 8 * i), 7), (op, a, i)) for i in range(6, -1, -1)]) |