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[Bug tree-optimization/30052] [4.2 Regression] possible quadratic behaviour.
- From: "dberlin at dberlin dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 19 May 2007 16:30:07 -0000
- Subject: [Bug tree-optimization/30052] [4.2 Regression] possible quadratic behaviour.
- References: <bug-30052-7667@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #22 from dberlin at gcc dot gnu dot org 2007-05-19 17:30 -------
Subject: Re: [4.2 Regression] possible quadratic behaviour.
On 19 May 2007 14:30:43 -0000, pluto at agmk dot net
<gcc-bugzilla@gcc.gnu.org> wrote:
>
>
> ------- Comment #21 from pluto at agmk dot net 2007-05-19 15:30 -------
> with this patc gcc works much better.
>
> xf86ScanPci.i : 84MB / ~5sec.
> sipQtCorepart0.ii.bz2 : 340MB / ~440sec
There are optimizations that could be made to the 440 seconds if they
are in PTA solving, but they wouldn't really help mainline much, so
i'm not sure if it is worth it.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30052