C++ Issue on GCC 3.0 branch

[law@redhat.com]

  In message < 200104272214.SAA06753@hiauly1.hia.nrc.ca >you write:
  > I think we need to define builtin_setjmp_receiver to restore r19.  The
  > default exception method I believe is exceptions via longjmp, so we need
  > this.  However, I have no idea whether or not this will fix the problem
  > with rethrow1.C.
Yes, we probably need to restore %r19, but I'm 99.9 certain that's not the
problem with the rethrow test since they fail with static libraries.


  > I also noticed a while back that exception_receiver uses a stack offset
  > of -32 to restore the pic offset table register.  This won't work on
  > the 64-bit target.  I think we should restore from the
  > PIC_OFFSET_TABLE_SAVE_RTX.  However, we need to wait for it to be
  > initialized.
Right.
jeff