   0  -live- %i0, %i1, %i2, %i3, %r0
   0  goto_if_not_int_eq %i0, %i1, L1
   5  ref_return $<* struct rpy_string>
   7  ---
   7  L1:
   7  getfield_gc_r_pure %r0, FieldDescr<rpython.rlib.buffer.SubBuffer.inst_buffer> -> %r1
  12  getfield_gc_i_pure %r0, FieldDescr<rpython.rlib.buffer.SubBuffer.inst_offset> -> %i4
  17  int_add %i4, %i0 -> %i0
  21  int_add %i4, %i1 -> %i1
  25  -live- %i0, %i1, %i2, %i3, %r1
  25  guard_class %r1 -> %i4
  28  getfield_raw_i %i4, FieldDescr<rpython.rlib.buffer.Buffer_vtable.cls_getslice> -> %i4
  33  -live- %i0, %i1, %i2, %i3, %i4, %r1
  33  int_guard_value %i4
  35  residual_call_ir_r %i4, <IndirectCallTargets>, I[%i0, %i1, %i2, %i3], R[%r1], <CallDescr(riiii) EF=7> -> %r0
  47  -live- %r0
  47  ref_return %r0
