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[Bug tree-optimization/18694] [4.0 regression] loop miscompilation at -O1 (-ftree-ch)
- From: "law at redhat dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 9 Dec 2004 17:38:20 -0000
- Subject: [Bug tree-optimization/18694] [4.0 regression] loop miscompilation at -O1 (-ftree-ch)
- References: <20041127224610.18694.falk@debian.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From law at redhat dot com 2004-12-09 17:38 -------
Subject: Re: [4.0 regression] loop
miscompilation at -O1 (-ftree-ch)
On Thu, 2004-12-09 at 16:58 +0000, kazu at cs dot umass dot edu wrote:
> ------- Additional Comments From kazu at cs dot umass dot edu 2004-12-09 16:58 -------
> With my old patch (conservative-dom), stmt.c was miscompiled on my machine.
> stage2/cc1 crashes on compiling crtstuff.c.
> Replacing stmt.o with stage1/stmt.o worked for me.
I'll work from that. It ought to be enough for me to to see if one of
my theories about ignoring equivalences applies.
jeff
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18694