On 4/27/19 6:12 AM, bin.cheng wrote:
> HI Martin, I remember you introduced comp_cost/cost_scaling to improve one 
> case
> in spec2017.  Unfortunately I don't have access to the benchmark now, could 
> you help
> verify that if this patch has performance issue on it please?  Thanks

Yes, it's 548.exchange2_r test from SPEC2017 and I can confirm it's fine after 
your patch.
I see the same speed with -Ofast -march=native.

Martin

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