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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/32328] [4.2/4.3 Regression] -fstrict-aliasing causes skipped code
Date: Wed, 20 Jun 2007 15:16:00 -0000	[thread overview]
Message-ID: <20070620151637.8984.qmail@sourceware.org> (raw)
In-Reply-To: <bug-32328-14702@http.gcc.gnu.org/bugzilla/>



------- Comment #10 from rguenth at gcc dot gnu dot org  2007-06-20 15:16 -------
trunk has the same problem, but different constraints:

Constraints:

ANYTHING = &ANYTHING
READONLY = &ANYTHING
INTEGER = &ANYTHING
barptr = &bar1
barptr.0_1 = barptr

Points-to sets

NULL = { }
ANYTHING = { ANYTHING }
READONLY = { ANYTHING }
INTEGER = { ANYTHING }
barptr = { bar1 }
bar1 = { }
barptr.0_1 = same as barptr


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |4.1.2
            Summary|[4.2 Regression] -fstrict-  |[4.2/4.3 Regression] -
                   |aliasing causes skipped code|fstrict-aliasing causes
                   |                            |skipped code


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32328


  parent reply	other threads:[~2007-06-20 15:16 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-06-13 21:18 [Bug c/32328] New: 4.2.0: -O2 " tdragon at tdragon dot net
2007-06-13 21:20 ` [Bug c/32328] " tdragon at tdragon dot net
2007-06-13 22:21 ` [Bug rtl-optimization/32328] " pinskia at gcc dot gnu dot org
2007-06-13 22:27 ` [Bug tree-optimization/32328] " tdragon at tdragon dot net
2007-06-13 22:36 ` tdragon at tdragon dot net
2007-06-13 22:47 ` tdragon at tdragon dot net
2007-06-20 14:45 ` tdragon at tdragon dot net
2007-06-20 14:47 ` tdragon at tdragon dot net
2007-06-20 14:52 ` tdragon at tdragon dot net
2007-06-20 15:13 ` [Bug tree-optimization/32328] [4.2 Regression] -fstrict-aliasing " rguenth at gcc dot gnu dot org
2007-06-20 15:16 ` rguenth at gcc dot gnu dot org [this message]
2007-06-20 15:36 ` [Bug tree-optimization/32328] [4.2/4.3 " tdragon at tdragon dot net
2007-06-20 20:04 ` dberlin at dberlin dot org
2007-06-20 20:09 ` dberlin at gcc dot gnu dot org
2007-07-04  3:29 ` mmitchel at gcc dot gnu dot org
2007-07-04 14:16   ` Daniel Berlin
2007-07-04 14:17 ` dberlin at dberlin dot org
2007-07-16 13:39 ` giovannibajo at libero dot it
2007-07-16 13:58 ` dberlin at dberlin dot org
2007-07-16 14:27 ` rguenth at gcc dot gnu dot org
2007-07-16 15:51 ` rguenth at gcc dot gnu dot org
2007-07-16 22:29 ` dberlin at dberlin dot org
2007-07-20  3:50 ` mmitchel at gcc dot gnu dot org
2007-08-19 23:24 ` dberlin at gcc dot gnu dot org
2007-08-20  1:54 ` dberlin at gcc dot gnu dot org
2007-08-22 15:52 ` rguenth at gcc dot gnu dot org
2007-08-23 12:42 ` [Bug tree-optimization/32328] [4.2 " rguenth at gcc dot gnu dot org
2007-09-05  6:47 ` giovannibajo at libero dot it
2007-09-05  8:29 ` rguenth at gcc dot gnu dot org
2007-09-05 11:51 ` dberlin at dberlin dot org
2007-10-09 19:30 ` mmitchel at gcc dot gnu dot org
2008-02-01 17:05 ` jsm28 at gcc dot gnu dot org
2008-02-22 18:15 ` tdragon at tdragon dot net
2008-02-22 18:48 ` pinskia at gcc dot gnu dot org
2008-05-19 20:27 ` jsm28 at gcc dot gnu dot org
2009-03-30 22:07 ` jsm28 at gcc dot gnu dot org

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