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From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/38985] [4.2/4.3/4.4 Regression] missing constraints for pointers accessed directly via their address
Date: Tue, 27 Jan 2009 12:09:00 -0000	[thread overview]
Message-ID: <20090127120913.9335.qmail@sourceware.org> (raw)
In-Reply-To: <bug-38985-7849@http.gcc.gnu.org/bugzilla/>



------- Comment #5 from rguenth at gcc dot gnu dot org  2009-01-27 12:09 -------
The bad thing is that this is really bad.  We would need to add the SMT for
the type here, but we have no way of looking that up.  So the only way to fix
this in a reasonable way is to simply not CCP constant addresses into
dereferences.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38985


  parent reply	other threads:[~2009-01-27 12:09 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-01-27 11:15 [Bug tree-optimization/38985] New: " bonzini at gnu dot org
2009-01-27 11:27 ` Andrew Thomas Pinski
2009-01-27 11:27 ` [Bug tree-optimization/38985] " pinskia at gmail dot com
2009-01-27 12:04 ` rguenth at gcc dot gnu dot org
2009-01-27 12:05 ` rguenth at gcc dot gnu dot org
2009-01-27 12:06 ` rguenth at gcc dot gnu dot org
2009-01-27 12:09 ` rguenth at gcc dot gnu dot org [this message]
2009-01-27 12:21 ` bonzini at gnu dot org
2009-01-27 12:29 ` bonzini at gnu dot org
2009-01-27 12:31 ` rguenth at gcc dot gnu dot org
2009-01-27 12:33 ` rguenth at gcc dot gnu dot org
2009-01-27 12:58 ` bonzini at gnu dot org
2009-01-27 13:05 ` rguenth at gcc dot gnu dot org
2009-01-27 13:18 ` bonzini at gnu dot org
2009-01-28 11:50 ` bonzini at gnu dot org
2009-01-28 12:08 ` rguenther at suse dot de
2009-01-28 21:38 ` rguenth at gcc dot gnu dot org
2009-03-31 21:08 ` [Bug tree-optimization/38985] [4.3/4.4/4.5 Regression] missing VOPs " jsm28 at gcc dot gnu dot org
2009-04-03 10:28 ` rguenth at gcc dot gnu dot org
2009-04-03 10:37 ` [Bug tree-optimization/38985] [4.3/4.4 " rguenth at gcc dot gnu dot org
2009-08-04 12:46 ` rguenth at gcc dot gnu dot org
2010-05-22 18:29 ` rguenth at gcc dot gnu dot org

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