nir: Try commutative sources in CSE

Graphics / Mesa 3D Graphics Library / Mesa - Ian Romanick [intel.com] - 15 April 2015 20:15 UTC

Shader-db results:

GM45 NIR: total instructions in shared programs: 4082044 -> 4081919 (-0.00%) instructions in affected programs: 27609 -> 27484 (-0.45%) helped: 44

Iron Lake NIR: total instructions in shared programs: 5678776 -> 5678646 (-0.00%) instructions in affected programs: 27406 -> 27276 (-0.47%) helped: 45

Sandy Bridge NIR: total instructions in shared programs: 7329995 -> 7329096 (-0.01%) instructions in affected programs: 142035 -> 141136 (-0.63%) helped: 406 HURT: 19

Ivy Bridge NIR: total instructions in shared programs: 6769314 -> 6768359 (-0.01%) instructions in affected programs: 140820 -> 139865 (-0.68%) helped: 423 HURT: 2

Haswell NIR: total instructions in shared programs: 6183693 -> 6183298 (-0.01%) instructions in affected programs: 96538 -> 96143 (-0.41%) helped: 303 HURT: 4

Broadwell NIR: total instructions in shared programs: 7501711 -> 7498170 (-0.05%) instructions in affected programs: 266403 -> 262862 (-1.33%) helped: 705 HURT: 5 GAINED: 4

v2: Rebase on top of Connor's fix.

v3: Convert the if-test for num_inputs == 2 to an assertion. Suggested by Jason after some comments / questions by Ilia.

4cf5ca5 nir: Try commutative sources in CSE
src/glsl/nir/nir_opt_cse.c | 27 ++++++++++++++++++---------
1 file changed, 18 insertions(+), 9 deletions(-)

Upstream: cgit.freedesktop.org

  • Share