   0  residual_call_ir_r $<* fn _operate>, I[%i0, %i1, $9223372036854775807, $'\x01'], R[%r0, $<* struct rpy_string>], <CallDescr(iriiir) EF=7> -> %r0
  13  -live- %r0
  16  getfield_gc_r_pure %r0, FieldDescr<tuple3.item0> -> %r1
  21  getfield_gc_i_pure %r0, FieldDescr<tuple3.item2> -> %i0
  26  -live- %i0, %r1
  29  goto_if_not_int_is_true %i0, L1
  33  raise $<* struct object>
  35  ---
  35  L1:
  35  ref_return %r1
