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From: "gary at intrepid dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/53419] loop incorrectly optimized to endless loop at -O2 for table delimited by extern addresses (x86-32)
Date: Sat, 19 May 2012 22:20:00 -0000 [thread overview]
Message-ID: <bug-53419-4-BYF6CJJTQR@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-53419-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53419
--- Comment #7 from Gary Funck <gary at intrepid dot com> 2012-05-19 22:11:42 UTC ---
(In reply to comment #4)
> Do you have a self-contained run-time testcase?
I wasn't able to create a run-time tester easily, because the code above relies
upon external labels that are interposed at the beginning and end of a table,
via separate compilation and linking. I can do that, but perhaps given
Andrew's reply, that may be unnecessary.
next prev parent reply other threads:[~2012-05-19 22:12 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-19 19:41 [Bug tree-optimization/53419] New: " gary at intrepid dot com
2012-05-19 19:43 ` [Bug tree-optimization/53419] " gary at intrepid dot com
2012-05-19 19:43 ` gary at intrepid dot com
2012-05-19 19:44 ` gary at intrepid dot com
2012-05-19 21:47 ` hjl.tools at gmail dot com
2012-05-19 22:09 ` pinskia at gcc dot gnu.org
2012-05-19 22:12 ` gary at intrepid dot com
2012-05-19 22:20 ` gary at intrepid dot com [this message]
2012-05-21 10:09 ` rguenth at gcc dot gnu.org
2012-05-21 10:41 ` jakub at gcc dot gnu.org
2012-05-21 12:45 ` rguenth at gcc dot gnu.org
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