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  • Ian Romanick's avatar
    intel/compiler: Don't always require precise lowering of flrp · c8665005
    Ian Romanick authored
    
    
    No changes on any other Intel platforms.
    
    Iron Lake and GM45 had similar results. (Iron Lake shown)
    total instructions in shared programs: 8164367 -> 8135551 (-0.35%)
    instructions in affected programs: 3271235 -> 3242419 (-0.88%)
    helped: 13636
    HURT: 90
    helped stats (abs) min: 1 max: 30 x̄: 2.13 x̃: 1
    helped stats (rel) min: 0.04% max: 10.77% x̄: 1.16% x̃: 0.97%
    HURT stats (abs)   min: 1 max: 4 x̄: 1.80 x̃: 2
    HURT stats (rel)   min: 0.26% max: 11.11% x̄: 1.76% x̃: 0.78%
    95% mean confidence interval for instructions value: -2.13 -2.07
    95% mean confidence interval for instructions %-change: -1.16% -1.13%
    Instructions are helped.
    
    total cycles in shared programs: 188719974 -> 188586222 (-0.07%)
    cycles in affected programs: 70415766 -> 70282014 (-0.19%)
    helped: 12563
    HURT: 515
    helped stats (abs) min: 2 max: 600 x̄: 10.90 x̃: 6
    helped stats (rel) min: <.01% max: 5.48% x̄: 0.48% x̃: 0.27%
    HURT stats (abs)   min: 2 max: 54 x̄: 6.07 x̃: 4
    HURT stats (rel)   min: 0.01% max: 4.48% x̄: 0.24% x̃: 0.08%
    95% mean confidence interval for cycles value: -10.56 -9.90
    95% mean confidence interval for cycles %-change: -0.47% -0.45%
    Cycles are helped.
    
    LOST:   0
    GAINED: 13
    
    Reviewed-by: default avatarMatt Turner <mattst88@gmail.com>
    c8665005