GCC 3.3 Prelease broken on s390

[Ulrich Weigand]

Richard Henderson wrote:

> Which begs the question of why my patch affects anything, because we're
> *still* dealing with a difference.  This I need to understand.  Can you
> debug what's going on?

Because the new CFA is computed incorrectly by uw_update_context_1.
It should be reading the saved r15 value from the save area, and
add the offset.  Instead, it now uses the old CFA value, and adds
the offset -- which results in a different value.

Bye,
Ulrich

-- 
  Dr. Ulrich Weigand
  weigand@informatik.uni-erlangen.de