   0  -live- %i0, %i1, %r0
   3  goto_if_not_int_eq %i1, $1, L1
   8  getfield_gc_r %r0, FieldDescr<rpython.rlib.streamio.TextInputFilter.inst_buf> -> %r1
  13  strlen %r1 -> %i2
  16  int_sub %i0, %i2 -> %i0
  20  L2:
  20  getfield_gc_r %r0, FieldDescr<rpython.rlib.streamio.TextInputFilter.inst_base> -> %r1
  25  -live- %i0, %i1, %r0, %r1
  28  guard_class %r1 -> %i2
  31  getfield_raw_i %i2, FieldDescr<rpython.rlib.streamio.Stream_vtable.cls_seek> -> %i2
  36  -live- %i0, %i1, %i2, %r0, %r1
  39  int_guard_value %i2
  41  residual_call_ir_v %i2, <IndirectCallTargets>, I[%i0, %i1], R[%r1], <CallDescr(rii) EF=7>
  50  -live- %r0
  53  setfield_gc_i %r0, $False, FieldDescr<rpython.rlib.streamio.TextInputFilter.inst_atcr>
  58  setfield_gc_r %r0, $<* struct rpy_string>, FieldDescr<rpython.rlib.streamio.TextInputFilter.inst_buf>
  63  void_return
  64  ---
  64  L1:
  64  goto L2
