   0  residual_call_r_r $<* fn get_nonmovingbuffer_final_null>, R[%r0], <CallDescr(r) EF=5> -> %r1
   7  -live- %i0, %i1, %r0, %r1
   7  getfield_gc_i_pure %r1, FieldDescr<tuple2.item0> -> %i2
  12  getfield_gc_i_pure %r1, FieldDescr<tuple2.item1> -> %i3
  17  residual_call_ir_i $<* fn ccall_open__arrayPtr_Signed_Signed>, I[%i2, %i0, %i1], R[], <CallDescr(iii) EF=7> -> %i0
  27  -live- %i0, %i2, %i3, %r0
  27  residual_call_ir_v $<* fn free_nonmovingbuffer>, I[%i2, %i3], R[%r0], <CallDescr(rii) EF=2>
  36  inline_call_ir_i <JitCode 'handle_posix_error__open'>, I[%i0], R[$<* struct rpy_string>] -> %i0
  44  -live- %i0
  44  int_return %i0
