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[Bug target/69789] g++ -O2 is removing tests against a variable that can be changed


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69789

Tomek Mrugalski <thomson at klub dot com.pl> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |thomson at klub dot com.pl

--- Comment #4 from Tomek Mrugalski <thomson at klub dot com.pl> ---
This issue also manifests itself on fully up-to-date Ubuntu 15.10, which has
the following version g++ (Ubuntu 5.2.1-22ubuntu2) 5.2.1 20151010.

Here's also a bug report that confirms this issue on Fedora 23:

https://lists.isc.org/pipermail/kea-users/2016-February/000232.html, 
https://lists.isc.org/pipermail/kea-users/2016-February/000234.html

The reported version there is:

g++ (GCC) 5.3.1 20151207 (Red Hat 5.3.1-2)

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