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Re: Revision 166517 caused PR 46414


On Wed, Nov 10, 2010 at 7:18 AM, Jan Hubicka <hubicka@ucw.cz> wrote:
>> The complette unrilling seems sane here.
>> This seems like good idea to me and i am not quite sure why 32bit compilation does not do the
>> transofrm. I will check now.
>
> The reason is word size. ?We compute move costs based on this, so vectorized moves are more expensive
> in 32bit cost model than 64bit.
> Perhaps there is way to hook vectorizer cost model in here?
>

Shouldn't we use vector size to compute move cost for vector move?


-- 
H.J.


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