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[Bug middle-end/15855] [3.4/4.0 Regression] g++ crash with -O2 and -O3 on input file
- From: "law at redhat dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 22 Dec 2004 19:29:45 -0000
- Subject: [Bug middle-end/15855] [3.4/4.0 Regression] g++ crash with -O2 and -O3 on input file
- References: <20040606191038.15855.abegel@cs.berkeley.edu>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From law at redhat dot com 2004-12-22 19:29 -------
Subject: Re: [3.4/4.0 Regression] g++ crash with -O2
and -O3 on input file
On Wed, 2004-12-22 at 19:20 +0000, steven at gcc dot gnu dot org wrote:
> ------- Additional Comments From steven at gcc dot gnu dot org 2004-12-22 19:20 -------
> Could someone (Jeff) update the summary for this PR to reflect the
> actual status of this PR and the problems being addressed?
>
> Does the test case from the submitter still crash g++ on mainline?
I don't believe it crashes, but the amount of time we're spending in
the aliasing code is, err, on the order of 50% of compilation time
last I checked. Fixing it effectively involves rewriting
tree-ssa-alias.c, which I am doing. However, it'll probably be
several weeks before I have anything ready for serious examination
due to personal commitments, vacation, etc.
jeff
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15855