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Re: 3.0 high priority: optimization/3083: C++ frontend consumesinacceptable amounts of CPU with -O3
- To: Gerald Pfeifer <pfeifer at dbai dot tuwien dot ac dot at>, gcc at gcc dot gnu dot org
- Subject: Re: 3.0 high priority: optimization/3083: C++ frontend consumesinacceptable amounts of CPU with -O3
- From: Paolo Carlini <pcarlini at unitus dot it>
- Date: Fri, 08 Jun 2001 23:51:22 +0200
- Organization: Universita' della Tuscia
- References: <Pine.BSF.4.33.0106082329490.79300-100000@deneb.dbai.tuwien.ac.at>
- Reply-To: pcarlini at unitus dot it
Hi,
please excuse me in advance for the naivety of my observation: are you fully aware
of the fact that in the time span between Mitchell's fixes of about two monts ago
and the following patch (of about one month ago):
http://gcc.gnu.org/ml/gcc-patches/2001-05/msg00233.html
the -O3 option was broken?? (i.e. -O3 compilations were faster than they really
would have been if -O3 was really working...)
Regards,
Paolo Carlini.
Gerald Pfeifer wrote:
> On Fri, 8 Jun 2001, Mark Mitchell wrote:
> > Would you mind trying to narrow down the range at which the bad
> > behavior reappaeared?
>
> I'll be offline for about 36 hours during the weekend, but I have started
> a binary search and if all goes well should be able to provide the 24 hour
> intervall where the regression happened before leaving...
>
> Gerald
> --
> Gerald "Jerry" pfeifer@dbai.tuwien.ac.at http://www.dbai.tuwien.ac.at/~pfeifer/