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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: 10 Dec 2004 19:44:43 -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 2004-12-10 19:44 -------
Subject: Re: [4.0 regression] loop
miscompilation at -O1 (-ftree-ch)
On Fri, 2004-12-10 at 19:08 +0000, kazu at cs dot umass dot edu wrote:
> By the way, I am now wondering how many times we succeed in threading
> a back edge.
I just put in some instrumentation. It happens relatively often.
jeff
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18694