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From: "ebotcazou at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/61047] [4.9/4.10 Regression] wrong code at -O1 on x86_64-linux
Date: Fri, 09 May 2014 11:01:00 -0000 [thread overview]
Message-ID: <bug-61047-4-UF6tuQ3Fyf@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-61047-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61047
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ebotcazou at gcc dot gnu.org
--- Comment #3 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> Note how the load at insn 28 is guarded by comparing ax against #2837. CE3
> transforms that into an unconditional load and we blow up reading the
> out-of-range stack slot.
>
> This isn't a threading issue, but a latent bug in CE as far as I can tell.
Right, see PR rtl-optimization/60452 for an earlier example. IMO a pretty
useless series of artificial testcases...
next prev parent reply other threads:[~2014-05-09 11:01 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-03 17:39 [Bug rtl-optimization/61047] New: " su at cs dot ucdavis.edu
2014-05-03 21:11 ` [Bug rtl-optimization/61047] " jakub at gcc dot gnu.org
2014-05-05 9:12 ` [Bug rtl-optimization/61047] [4.9/4.10 Regression] " rguenth at gcc dot gnu.org
2014-05-09 11:01 ` ebotcazou at gcc dot gnu.org [this message]
2014-06-08 14:46 ` bernd.edlinger at hotmail dot de
2014-06-08 15:03 ` bernd.edlinger at hotmail dot de
2014-06-08 15:17 ` bernd.edlinger at hotmail dot de
2014-06-11 20:02 ` bernd.edlinger at hotmail dot de
2014-07-16 13:29 ` jakub at gcc dot gnu.org
2014-10-30 10:40 ` [Bug rtl-optimization/61047] [4.9/5 " jakub at gcc dot gnu.org
2015-01-12 16:13 ` ebotcazou at gcc dot gnu.org
2015-01-13 6:54 ` bernd.edlinger at hotmail dot de
2015-01-13 8:24 ` ebotcazou at gcc dot gnu.org
2015-01-13 8:37 ` zsojka at seznam dot cz
2015-01-13 8:43 ` bernd.edlinger at hotmail dot de
2015-01-13 9:25 ` ebotcazou at gcc dot gnu.org
2015-02-12 12:59 ` jakub at gcc dot gnu.org
2015-03-11 0:31 ` jakub at gcc dot gnu.org
2015-06-10 15:46 ` [Bug rtl-optimization/61047] [4.9/5/6 " bernhard.kaindl at thalesgroup dot com
2015-06-10 16:05 ` ebotcazou at gcc dot gnu.org
2015-06-10 16:12 ` jakub at gcc dot gnu.org
2015-06-10 16:16 ` bernd.edlinger at hotmail dot de
2015-06-10 16:23 ` ebotcazou at gcc dot gnu.org
2015-06-26 20:19 ` jakub at gcc dot gnu.org
2015-06-26 20:38 ` jakub at gcc dot gnu.org
2015-07-01 16:11 ` edlinger at gcc dot gnu.org
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