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Re: [Patch] Splitting memory references during unrolling (resubmission)


David Edelsohn <dje@watson.ibm.com> wrote on 15/10/2004 05:47:41:

>    What is the current SPEC performance benefit from this patch?
> 
> Thanks, David


Hello,

This patch gains ~1% improvements on overall CINTPEC2000 on 
powerpc-linux when the number of times this optimization 
is applied in each loop is restricted to one
(I can add this restriction if this patch will be accepted); 
where gap gains ~5% improvements and bzip2 ~1%.
In CFPPEC2000 there was no significant improvements 
except swim which gained 3% improvement but mesa,
facerec and wupwise show a regression of about 1%
each.

Revital



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