OpenHarmony/third_party_mesa3d
2
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

nir/algebraic: don't optimize umod/imod/irem if lower_bitops=true

Browse Source 
Match the udiv/idiv/imul by power-of-two optimizations.

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12039>
This commit is contained in:
Rhys Perry
2021-07-21 17:08:52 +01:00
committed by Marge Bot
parent ec4b425f59
commit 65cd5a0f22
1 changed files with 5 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
src/compiler/nir/nir_opt_algebraic.py
View File

@@ -112,11 +112,11 @@ optimizations = [
(('udiv', a, '#b(is_pos_power_of_two)'), ('ushr', a, ('find_lsb', b)), '!options->lower_bitops'),
(('idiv', a, '#b(is_pos_power_of_two)'), ('imul', ('isign', a), ('ushr', ('iabs', a), ('find_lsb', b))), '!options->lower_bitops'),
(('idiv', a, '#b(is_neg_power_of_two)'), ('ineg', ('imul', ('isign', a), ('ushr', ('iabs', a), ('find_lsb', ('iabs', b))))), '!options->lower_bitops'),
(('umod', a, '#b(is_pos_power_of_two)'), ('iand', a, ('isub', b, 1))),
(('imod', a, '#b(is_pos_power_of_two)'), ('iand', a, ('isub', b, 1))),
(('imod', a, '#b(is_neg_power_of_two)'), ('bcsel', ('ieq', ('ior', a, b), b), 0, ('ior', a, b))),
(('irem', a, '#b(is_pos_power_of_two)'), ('bcsel', ('ige', a, 0), ('iand', a, ('isub', b, 1)), ('imod', a, ('ineg', b)))),
(('irem', a, '#b(is_neg_power_of_two)'), ('bcsel', ('ige', a, 0), ('iand', a, ('inot', b)), ('imod', a, b))),
(('umod', a, '#b(is_pos_power_of_two)'), ('iand', a, ('isub', b, 1)), '!options->lower_bitops'),
(('imod', a, '#b(is_pos_power_of_two)'), ('iand', a, ('isub', b, 1)), '!options->lower_bitops'),
(('imod', a, '#b(is_neg_power_of_two)'), ('bcsel', ('ieq', ('ior', a, b), b), 0, ('ior', a, b)), '!options->lower_bitops'),
(('irem', a, '#b(is_pos_power_of_two)'), ('bcsel', ('ige', a, 0), ('iand', a, ('isub', b, 1)), ('imod', a, ('ineg', b))), '!options->lower_bitops'),
(('irem', a, '#b(is_neg_power_of_two)'), ('bcsel', ('ige', a, 0), ('iand', a, ('inot', b)), ('imod', a, b)), '!options->lower_bitops'),
(('~fneg', ('fneg', a)), a),
(('ineg', ('ineg', a)), a),