fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-06 13:48:06 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

nir/algebraic: Covert up-cast of down-cast to extract on Intel

Browse source 
This starts generating extract for bit sizes other than 32 but our
back-end handles that just fine.

Reviewed-by: Ian Romanick <ian.d.romanick@.intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8872>
This commit is contained in:
Jason Ekstrand 2021-02-04 13:27:08 -06:00 • committed by Marge Bot
parent f9b3be09e1
commit 2491d5a662
1 changed files with 23 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

23
src/compiler/nir/nir_opt_algebraic.py
View file

@ -2333,6 +2333,29 @@ late_optimizations = [
(('ushr', a, 0), a),
]
# A few more extract cases we'd rather leave late
for N in [16, 32]:
aN = 'a@{0}'.format(N)
u2uM = 'u2u{0}'.format(M)
i2iM = 'i2i{0}'.format(M)
for x in ['u', 'i']:
x2xN = '{0}2{0}{1}'.format(x, N)
extract_x8 = 'extract_{0}8'.format(x)
extract_x16 = 'extract_{0}16'.format(x)
late_optimizations.extend([
((x2xN, ('u2u8', aN)), (extract_x8, a, 0), '!options->lower_extract_byte'),
((x2xN, ('i2i8', aN)), (extract_x8, a, 0), '!options->lower_extract_byte'),
])
if N > 16:
late_optimizations.extend([
((x2xN, ('u2u16', aN)), (extract_x16, a, 0), '!options->lower_extract_word'),
((x2xN, ('i2i16', aN)), (extract_x16, a, 0), '!options->lower_extract_word'),
])
# Integer sizes
for s in [8, 16, 32, 64]:
late_optimizations.extend([