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From: "vries at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/62030] wrong code due to ifcvt merging two stores which have different aliasing sets
Date: Wed, 06 Aug 2014 07:43:00 -0000 [thread overview]
Message-ID: <bug-62030-4-1mBFt6e0Kv@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-62030-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62030
--- Comment #4 from vries at gcc dot gnu.org ---
(In reply to Andrew Pinski from comment #3)
> (In reply to vries from comment #2)
> > I think the test-case is reading an undefined value from n->next, but that's
> > easy enough to fix with an intializer for node.
>
> Since node is a global variable, it is zero initialized so there is no
> reading from an uninitialized area.
Ah, right, I thought that only applied to static. Thanks for setting that
straight.
next prev parent reply other threads:[~2014-08-06 7:43 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-06 5:08 [Bug rtl-optimization/62030] New: wrong code due to aliasing issue pinskia at gcc dot gnu.org
2014-08-06 5:29 ` [Bug rtl-optimization/62030] wrong code due to ifcvt merging two stores which have different aliasing sets pinskia at gcc dot gnu.org
2014-08-06 6:58 ` vries at gcc dot gnu.org
2014-08-06 7:03 ` pinskia at gcc dot gnu.org
2014-08-06 7:43 ` vries at gcc dot gnu.org [this message]
2014-08-06 9:36 ` vries at gcc dot gnu.org
2014-08-08 11:34 ` vries at gcc dot gnu.org
2014-08-08 11:39 ` vries at gcc dot gnu.org
2014-08-14 16:14 ` vries at gcc dot gnu.org
2014-08-14 17:49 ` vries at gcc dot gnu.org
2014-08-15 21:24 ` vries at gcc dot gnu.org
2014-08-16 17:38 ` vries at gcc dot gnu.org
2014-08-18 8:38 ` vries at gcc dot gnu.org
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