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From: "manu at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/51329] O3 optimizes away a loop
Date: Mon, 28 Nov 2011 11:33:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D51329

Manuel L=C3=B3pez-Ib=C3=A1=C3=B1ez <manu at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |manu at gcc dot gnu.org

--- Comment #3 from Manuel L=C3=B3pez-Ib=C3=A1=C3=B1ez <manu at gcc dot gnu=
.org> 2011-11-28 10:08:19 UTC ---
(In reply to comment #2)
> Thanks, will report to apple.

Reporting to Apple is useless, they have long moved to Clang, so they won't=
 fix
bugs in GCC. By extension, advising someone to report GCC bugs to Apple is
doubly-useless. You are basically telling them "Forget about GCC, use Clang=
!"
because this is what Apple will tell them.

A better advice is to try to install a newer GCC on your own

http://gcc.gnu.org/install/

or using macports:

http://www.macports.org/install.php

I am sure you can find plenty of information on the net.

If the bug is still there, reopen this report.