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[Bug tree-optimization/30052] [4.2 Regression] possible quadratic behaviour.
- From: "rguenther at suse dot de" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 11 Jun 2007 13:07:33 -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 #34 from rguenther at suse dot de 2007-06-11 13:07 -------
Subject: Re: [4.2 Regression] possible quadratic
behaviour.
On Mon, 11 Jun 2007, pluto at agmk dot net wrote:
>
>
> ------- Comment #33 from pluto at agmk dot net 2007-06-11 13:04 -------
> i'm reopening this bug becasue the fix is not complete.
>
> it does fix the xf86ScanPci.i testcase (time/mem hog) and this is great
>
> $ time gcc xf86ScanPci.i -O1 -c ( 2.2GHz amd64, 1GB ram ).
> gcc xf86ScanPci.i -O1 -c 4.10s user 0.20s system 92% cpu 4.665 total
>
> the patch doesn't fix the sipQtCorepart0.ii time hog, only mem hog is fixed.
> g++ needs about 300MB of ram and +inf? (canceled after 6 days) of time.
Can you check where the time is spent on?
Richard.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30052