execution order

[Kövesdi György]

> > which is not as expected. I think that this execution order is not
> > correct. Is it a gcc-problem or I misunderstand something?
> I believe the optimizer can re-order those things, if it can determine that
> they are not inter-dependent.  Hence, the optimizing compiler can guarantee

How the inter-dependency is determined? How can I tell the compiler not to do 
re-ordering? Is it possible to make such a dependency between them?

Regards
K. Gy.