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Re: optimization question


On Sat, May 16, 2009 at 11:29 AM, VandeVondele Joost <vondele@pci.uzh.ch> wrote:
>
>
> thanks for the info
>
>> I think it is useful to have a bugzilla here.
>
> will do.

Btw, complete unrolling is also hindred by the artificial limit of maximally
unrolling 16 iterations.  Your inner loops iterate 27 times.  Also by the
artificial limit of the maximal unrolled size.

With --param max-completely-peel-times=27 --param
max-completely-peeled-insns=666

(values for trunk) the loops are unrolled at -O3.

Richard.

>>
>> I tested 4.4, what did you test?
>>
>
> 4.3 4.4 4.5
>
> Joost
>


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