   0  -live- %r1
   0  guard_class %r1 -> %i0
   3  getfield_raw_i %i0, FieldDescr<pypy.interpreter.baseobjspace.W_Root_vtable.cls_getweakref> -> %i0
   8  -live- %i0, %r1
   8  int_guard_value %i0
  10  residual_call_r_r %i0, <IndirectCallTargets>, R[%r1], <CallDescr(r) EF=7> -> %r0
  17  -live- %r0
  17  -live- %r0
  17  goto_if_not_ptr_iszero %r0, L1
  21  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
  23  ---
  23  L1:
  23  residual_call_r_r $<* fn WeakrefLifeline.get_any_weakref>, R[%r0], <CallDescr(r) EF=5> -> %r0
  30  -live- %r0
  30  ref_return %r0
