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From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/18842] Weak optimization on global references
Date: Sun, 05 Mar 2006 21:30:00 -0000 [thread overview]
Message-ID: <20060305213001.32258.qmail@sourceware.org> (raw)
In-Reply-To: <bug-18842-9734@http.gcc.gnu.org/bugzilla/>
------- Comment #7 from pinskia at gcc dot gnu dot org 2006-03-05 21:30 -------
(In reply to comment #2)
> This is not a bug. You need IPA to figure out that y is never changed. For
> example:
>
> int x, &y = x, z;
> int bar() { y = z; }
This actually does:
*y = z; and not y = &z;
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18842
next parent reply other threads:[~2006-03-05 21:30 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-18842-9734@http.gcc.gnu.org/bugzilla/>
2006-03-05 21:30 ` pinskia at gcc dot gnu dot org [this message]
2006-07-16 14:23 ` felix dot nawothnig at t-online dot de
2006-07-16 20:36 ` rguenth at gcc dot gnu dot org
2009-04-22 22:02 ` pinskia at gcc dot gnu dot org
2004-12-05 8:55 [Bug c++/18842] New: " felix dot nawothnig at t-online dot de
2004-12-05 15:14 ` [Bug tree-optimization/18842] " pinskia at gcc dot gnu dot org
2004-12-05 19:11 ` felix dot nawothnig at t-online dot de
2004-12-05 19:15 ` pinskia at gcc dot gnu dot org
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