   0  inline_call_ir_r <JitCode 'interp_w__W_CPPInstance'>, I[$False], R[%r0] -> %r0
   8  -live- %r0
  11  inline_call_r_r <JitCode 'W_CPPInstance.instance__repr__'>, R[%r0] -> %r0
  17  -live- %r0
  20  ref_return %r0
