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Re: 3.3 compile time regression (22400%)
- From: Richard Guenther <rguenth at tat dot physik dot uni-tuebingen dot de>
- To: Janis Johnson <janis187 at us dot ibm dot com>
- Cc: Steven Bosscher <s dot bosscher at student dot tudelft dot nl>, <richard dot guenther at uni-tuebingen dot de>, <mark at codesourcery dot com>, <gcc at gcc dot gnu dot org>
- Date: Tue, 25 Mar 2003 15:17:21 +0100 (CET)
- Subject: Re: 3.3 compile time regression (22400%)
On Mon, 24 Mar 2003, Janis Johnson wrote:
> On Sat, Mar 22, 2003 at 01:51:57PM -0800, Janis Johnson wrote:
> > On Sat, Mar 22, 2003 at 02:39:43PM +0100, Steven Bosscher wrote:
> > >
> > > Richard, can you open a PR for this issue and put that multi-megabyte
> > > test case up for download somewhere? If you don't have a public space
> > > for your test case, then I can make some of my own available for you.
> > >
> > > Janis, when the test case is there, do you have the cycles to track this
> > > one down to the breaking patch somehow?
> >
> > Yes, I can do that.
>
> It turns out that I can't investigate when the performance changed for
> this. When the test case is takes a long time to compile, it also runs
> out of memory. I don't have access to a bigger i686-linux system and
> can't use the preprocessed source file on other systems.
Maybe the patch identified to cause c++/10047 is related - it defers
inline functions (see also c++/4803 which the patch fixes).
Richard.
--
Richard Guenther <richard dot guenther at uni-tuebingen dot de>
WWW: http://www.tat.physik.uni-tuebingen.de/~rguenth/