   0  -live- %r0, %r1
   0  goto_if_not_ptr_nonzero %r0, L1
   4  ref_copy %r0 -> %r2
   7  -live- %r0, %r1, %r2
   7  guard_class %r0 -> %i0
  10  -live- %i0, %r1, %r2
  10  goto_if_not_int_eq %i0, $<* struct object_vtable>, L2
  15  residual_call_r_v $<* fn W_GenericUFuncCaller.descr_call>, R[%r2, %r1], <CallDescr(rr) EF=7>
  22  -live-
  22  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
  24  ---
  24  L2:
  24  raise $<* struct object>
  26  ---
  26  L1:
  26  raise $<* struct object>
