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[Bug tree-optimization/31090] Revision 121302 causes 30% performance regression



------- Comment #5 from dberlin at gcc dot gnu dot org  2007-03-09 17:51 -------
Subject: Re:  Revision 121302 causes 30% performance regression

Could you attach dumps for fdump-tree-alias-vops-details-blocks-stats
(tarr'ing up the resulting dumps is fine) for before and after?

I don't have a clean tree around, and it would really help.
(If not, it's okay, it would just make my analysis faster).

On 9 Mar 2007 17:40:50 -0000, hjl at lucon dot org
<gcc-bugzilla@gcc.gnu.org> wrote:
>
>
> ------- Comment #4 from hjl at lucon dot org  2007-03-09 17:40 -------
> Created an attachment (id=13180)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13180&action=view)
>  --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13180&action=view)
> A breakdown testcase
>
> xxx.f90 is the problem. -fdump-tree-all shows that revision 121302
> generates very different alias info.
>
>
> --
>
>
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31090
>
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-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31090


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