http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59895
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |INVALID --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- The order of initializing s1 and globalvec is undefined in C++ and that is the effect you are seeing. If s1 and globalvec are declared in the same TU, the order is defined by the order in the source itself.