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From: "ebotcazou at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/25737] ACATS tests c974001 and c974013 do not terminate with struct aliasing enabled
Date: Thu, 23 Mar 2006 10:25:00 -0000 [thread overview]
Message-ID: <20060323102552.6838.qmail@sourceware.org> (raw)
In-Reply-To: <bug-25737-10053@http.gcc.gnu.org/bugzilla/>
------- Comment #7 from ebotcazou at gcc dot gnu dot org 2006-03-23 10:25 -------
> I guess (only guess!) that the types differe in a way that aliasing does not
> see them clobbered by means of type based alias analysis. Can you try if
> -fno-strict-aliasing fixes it?
No, there is really a hole somewhere, reduced C testcase to be attached. When
structure aliasing is enabled, the SMT for the structure type doesn't alias the
structure, which seems wrong to me since the structure is marked as
addressable.
Daniel, could you take a quick look? We can't enable structure aliasing for
Ada because of this problem in the aliasing machinery. Thanks in advance.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25737
next prev parent reply other threads:[~2006-03-23 10:25 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-10 13:07 [Bug tree-optimization/25737] New: " rguenth at gcc dot gnu dot org
2006-02-05 10:28 ` [Bug tree-optimization/25737] " ebotcazou at gcc dot gnu dot org
2006-03-22 9:53 ` ebotcazou at gcc dot gnu dot org
2006-03-22 10:06 ` ebotcazou at gcc dot gnu dot org
2006-03-22 10:28 ` ebotcazou at gcc dot gnu dot org
2006-03-22 11:17 ` rguenth at gcc dot gnu dot org
2006-03-22 11:19 ` rguenth at gcc dot gnu dot org
2006-03-23 10:25 ` ebotcazou at gcc dot gnu dot org [this message]
2006-03-23 10:27 ` ebotcazou at gcc dot gnu dot org
2006-03-23 11:09 ` [Bug tree-optimization/25737] [4.1/4.2 Regression] " rguenth at gcc dot gnu dot org
2006-03-23 13:40 ` dberlin at gcc dot gnu dot org
2006-03-23 13:43 ` rguenther at suse dot de
2006-03-23 14:13 ` [Bug tree-optimization/25737] [4.1/4.2 Regression] ACATS tests c974001 and c974013 do not terminate with struct aliasing pinskia at gcc dot gnu dot org
2006-03-23 17:57 ` ebotcazou at gcc dot gnu dot org
2006-03-23 18:08 ` ebotcazou at gcc dot gnu dot org
2006-03-23 18:13 ` ebotcazou at gcc dot gnu dot org
2006-03-23 18:24 ` ebotcazou at gcc dot gnu dot org
2006-03-23 20:12 ` dberlin at dberlin dot org
2006-03-23 22:21 ` ebotcazou at gcc dot gnu dot org
2006-03-23 22:28 ` rguenth at gcc dot gnu dot org
2006-03-23 22:33 ` ebotcazou at gcc dot gnu dot org
2006-03-24 4:00 ` dberlin at dberlin dot org
2006-03-24 4:04 ` dberlin at dberlin dot org
2006-04-16 18:35 ` [Bug tree-optimization/25737] [4.1/4.2 Regression] ACATS c974001 c974013 hang " mmitchel at gcc dot gnu dot org
2006-04-18 17:36 ` ebotcazou at gcc dot gnu dot org
2006-05-13 18:56 ` ebotcazou at gcc dot gnu dot org
2006-05-14 22:28 ` mmitchel at gcc dot gnu dot org
2006-05-15 5:36 ` ebotcazou at gcc dot gnu dot org
2006-05-15 12:42 ` dberlin at dberlin dot org
2006-05-25 2:47 ` mmitchel at gcc dot gnu dot org
2006-06-12 13:36 ` danglin at gcc dot gnu dot org
2006-06-23 15:33 ` krebbel at gcc dot gnu dot org
2006-09-21 13:56 ` krebbel at gcc dot gnu dot org
2006-09-21 14:00 ` rguenth at gcc dot gnu dot org
2006-09-21 14:05 ` [Bug tree-optimization/25737] " ebotcazou at gcc dot gnu dot org
2006-09-21 14:49 ` krebbel at gcc dot gnu dot org
2006-09-21 14:53 ` dberlin at dberlin dot org
2006-09-21 16:53 ` ebotcazou at gcc dot gnu dot org
2006-09-22 12:55 ` dberlin at dberlin dot org
2006-09-24 18:23 ` ebotcazou at gcc dot gnu dot org
2006-09-25 1:27 ` Daniel Berlin
2006-09-25 1:27 ` dberlin at dberlin dot org
2006-10-03 12:55 ` dnovillo at gcc dot gnu dot org
2006-10-03 14:13 ` ebotcazou at gcc dot gnu dot org
2007-06-20 18:17 ` nemet at gcc dot gnu dot org
2007-06-20 18:19 ` nemet at gcc dot gnu dot org
2007-06-21 10:11 ` ebotcazou at gcc dot gnu dot org
2007-06-21 10:14 ` ebotcazou at gcc dot gnu dot org
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