new SIGSEGV in jump.c

[Jeffrey A Law]

  In message < 98070822290301.03301@ns1102.munich.netsurf.de >you write:
  > >(xxgdb) p debug_rtx(reg)
  > >(reg:SI 126)
  > >$1 = void
  > >(xxgdb) p reg_n_info->num_elements
  > >$2 = 126
That's the problem.  The register # (126) is one item beyond the
end of the virtual array.  I suspect an off-by-one or some such error
in the virtual array code.  

Michael?
jeff