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From: "tammy at Cadence dot COM" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/58208] deque<std::string> 32-bit "-O3" bug
Date: Wed, 28 Aug 2013 23:02:00 -0000	[thread overview]
Message-ID: <bug-58208-4-siONCYqSTB@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-58208-4@http.gcc.gnu.org/bugzilla/>

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58208

--- Comment #12 from Tammy Hsu <tammy at Cadence dot COM> ---
I installed the required i686 rpms on the Fedora 19 system, and the testcase
works without crash (using the /bin/g++).

I then built gcc481 on the Fedora 19 system, the testcase also works fine when
I compile/link it with my own build gcc481.

So it may really be a glibc compatibility issue (as Mikael said in comment 7).
>From Mikael and I have done:

Not working if build gcc481 on:
RHEL 5.5 - glibc 2.5
CentOS 5.8 - glibc 2.5 (done by Mikael)
RHEL 6.3 - glibc 2.12

Working if build gcc481 on
Fedora 17 - glibc 2.15 (done by Mikael)
Fedora 19 - glibc-2.17

Also if I use the gcc481 built on RHEL 5.5 or RHEL 6.3, and run on Fedora 19,
the testcase works also. So something changed between gcc4.7.3 and gcc 4.8.1
that causes "-ftree-vectorize" optimization not work well (32bit only) with
older glibc.


  parent reply	other threads:[~2013-08-28 23:02 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-08-20 22:28 [Bug c++/58208] New: " tammy at Cadence dot COM
2013-08-20 22:38 ` [Bug tree-optimization/58208] " paolo.carlini at oracle dot com
2013-08-23 22:34 ` [Bug target/58208] " tammy at Cadence dot COM
2013-08-23 23:05 ` pinskia at gcc dot gnu.org
2013-08-24 12:19 ` mikpe at it dot uu.se
2013-08-25 10:14 ` mikpe at it dot uu.se
2013-08-25 18:12 ` mikpe at it dot uu.se
2013-08-25 20:02 ` mikpe at it dot uu.se
2013-08-26  3:07 ` tammy at Cadence dot COM
2013-08-26 17:08 ` tammy at Cadence dot COM
2013-08-26 19:43 ` tammy at Cadence dot COM
2013-08-28 23:02 ` tammy at Cadence dot COM [this message]
2023-06-07  2:03 ` pinskia at gcc dot gnu.org
2023-06-07  2:05 ` pinskia at gcc dot gnu.org
2023-06-07  2:06 ` pinskia at gcc dot gnu.org

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