   0  residual_call_r_r $<* fn W_CPPInstance.instance__eq__>, R[%r0, %r1], <CallDescr(rr) EF=7> -> %r0
   8  -live- %r0
  11  goto_if_not_ptr_iszero %r0, L1
  15  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
  17  ---
  17  L1:
  17  ref_return %r0
