diff options
Diffstat (limited to 'src/compiler/nir/nir_opt_algebraic.py')
| -rw-r--r-- | src/compiler/nir/nir_opt_algebraic.py | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py index 878d13ded5e..eaa8b141640 100644 --- a/src/compiler/nir/nir_opt_algebraic.py +++ b/src/compiler/nir/nir_opt_algebraic.py @@ -539,6 +539,22 @@ optimizations = [ ('ubfe', 'value', 'offset', 'bits')), 'options->lower_bitfield_extract'), + (('ibitfield_extract', 'value', 'offset', 'bits'), + ('bcsel', ('ieq', 0, 'bits'), + 0, + ('ishr', + ('ishl', 'value', ('isub', ('isub', 32, 'bits'), 'offset')), + ('isub', 32, 'bits'))), + 'options->lower_bitfield_extract_to_shifts'), + + (('ubitfield_extract', 'value', 'offset', 'bits'), + ('iand', + ('ushr', 'value', 'offset'), + ('bcsel', ('ieq', 'bits', 32), + 0xffffffff, + ('bfm', 'bits', 0))), + 'options->lower_bitfield_extract_to_shifts'), + (('extract_i8', a, 'b@32'), ('ishr', ('ishl', a, ('imul', ('isub', 3, b), 8)), 24), 'options->lower_extract_byte'), |