Hi,

I'm thinking about to tune the cunroll and cunrolli. And I also had some
tests about parameters like: param_max_completely_peel_times,
param_max_peel_times, param_max_completely_peeled_insns...
During tunning those parameters, I find there are some cases that are
improved, while there are always some other benchmarks downgrade.

For example:
max-completely-peel-times=8 helps 523.xalancbmk_r, but downgrade happens
on 511.povray_r with this paramter on some machines.
max-completely-peel-times=10 helps 511.povray_r, but downgrade happens
on 503.bwaves_r.

Below are those parameters which already exist to tune cunroll/cunrolli.
param_max_completely_peel_times 16(default).
param_max_completely_peeled_insns 200
param_max_peel_branches 32
param_max_peel_times 16
param_max_peeled_insns 100
param_max_unroll_iterations 8

Do you have any suggestions about tuning the parameters?

Thanks!
Jiufu Guo

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