   0  residual_call_r_r $<* fn Complex64.unbox>, R[%r0, %r1], <CallDescr(rr) EF=7> -> %r1
   8  -live- %r0, %r1
   8  residual_call_r_r $<* fn for_computation>, R[%r1], <CallDescr(r) EF=5> -> %r1
  15  -live- %r0, %r1
  15  getfield_gc_f_pure %r1, FieldDescr<tuple2.item0> -> %f0
  20  getfield_gc_f_pure %r1, FieldDescr<tuple2.item1> -> %f1
  25  residual_call_irf_r $<* fn box_complex__float_float>, I[], R[%r0], F[%f0, %f1], <CallDescr(rff) EF=5> -> %r0
  36  -live- %r0
  36  ref_return %r0
