[Bug other/49942] Wrong code generated for -O2 with target s390 on Linux

[jphartmann at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49942

--- Comment #3 from jphartmann at gmail dot com <jphartmann at gmail dot com> 2011-08-02 08:37:44 UTC ---
Adding a dummy assignment to a global value that the optimiser cannot figure to
be useless fixes the problem.