If it's not the right bit-size, it may not actually be the correct
extraction. For now, we'll only worry about 32-bit versions.
Fixes: 905ff8619824 "nir: Recognize open-coded extract_u16"
Fixes: 76289fbfa84a "nir: Recognize open-coded extract_u8"
---
src/compiler/nir/nir_opt_algebraic.py | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/compiler/nir/nir_opt_algebraic.py
b/src/compiler/nir/nir_opt_algebraic.py
index e770a61d9ff..28090d069cd 100644
--- a/src/compiler/nir/nir_opt_algebraic.py
+++ b/src/compiler/nir/nir_opt_algebraic.py
@@ -543,13 +543,13 @@ optimizations = [
('unpack_64_2x32_split_y', a)), a),
# Byte extraction
- (('ushr', a, 24), ('extract_u8', a, 3), '!options->lower_extract_byte'),
+ (('ushr', 'a@32', 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'),
# Word extraction
- (('ushr', a, 16), ('extract_u16', a, 1), '!options->lower_extract_word'),
+ (('ushr', 'a@16', 16), ('extract_u16', a, 1),
'!options->lower_extract_word'),
(('iand', 0xffff, a), ('extract_u16', a, 0),
'!options->lower_extract_word'),
# Subtracts
--
2.17.1
_______________________________________________
mesa-dev mailing list
[email protected]
https://lists.freedesktop.org/mailman/listinfo/mesa-dev
