diff options
author | Ian Romanick <[email protected]> | 2018-08-22 21:55:55 -0700 |
---|---|---|
committer | Ian Romanick <[email protected]> | 2019-05-06 22:52:28 -0700 |
commit | dc566a033cca87821d55ff0f68ee8a108eb0e2a3 (patch) | |
tree | 4bddcc4cee44dd010484b83e9458bc0e6402169d /scons/fixes.py | |
parent | a83a6e96904a8941fce30b862b18a7c8b3a30dad (diff) |
nir/algebraic: Pull common multiplication out of flrp arguments
All Intel platforms had similar results. (Skylake shown)
total instructions in shared programs: 15342485 -> 15337495 (-0.03%)
instructions in affected programs: 217456 -> 212466 (-2.29%)
helped: 1539
HURT: 1
helped stats (abs) min: 1 max: 17 x̄: 3.24 x̃: 3
helped stats (rel) min: 0.22% max: 18.75% x̄: 3.10% x̃: 1.91%
HURT stats (abs) min: 1 max: 1 x̄: 1.00 x̃: 1
HURT stats (rel) min: 0.56% max: 0.56% x̄: 0.56% x̃: 0.56%
95% mean confidence interval for instructions value: -3.39 -3.09
95% mean confidence interval for instructions %-change: -3.24% -2.96%
Instructions are helped.
total cycles in shared programs: 355734320 -> 355728237 (<.01%)
cycles in affected programs: 1851555 -> 1845472 (-0.33%)
helped: 835
HURT: 575
helped stats (abs) min: 1 max: 658 x̄: 40.62 x̃: 14
helped stats (rel) min: <.01% max: 35.69% x̄: 3.78% x̃: 1.81%
HURT stats (abs) min: 1 max: 322 x̄: 48.40 x̃: 14
HURT stats (rel) min: 0.04% max: 71.02% x̄: 8.06% x̃: 2.43%
95% mean confidence interval for cycles value: -8.50 -0.13
95% mean confidence interval for cycles %-change: 0.48% 1.62%
Inconclusive result (value mean confidence interval and %-change mean confidence interval disagree).
Reviewed-by: Matt Turner <[email protected]>
Diffstat (limited to 'scons/fixes.py')
0 files changed, 0 insertions, 0 deletions