   0  -live- %f0, %i0, %r0
   0  goto_if_not_int_eq %i0, $1, L1
   5  getfield_gc_r %r0, FieldDescr<rpython.rlib.streamio.TextInputFilter.inst_buf> -> %r1
  10  strlen %r1 -> %i1
  13  residual_call_irf_f $<* fn _ll_1_llong_from_int__Signed>, I[%i1], R[], F[], <CallDescr(i) EF=0 OS_LLONG_FROM_INT> -> %f1
  22  residual_call_irf_f $<* fn _ll_2_llong_sub__SignedLongLong_SignedLongLong>, I[], R[], F[%f0, %f1], <CallDescr(LL) EF=0 OS_LLONG_SUB> -> %f0
  32  L2:
  32  getfield_gc_r %r0, FieldDescr<rpython.rlib.streamio.TextInputFilter.inst_base> -> %r1
  37  -live- %f0, %i0, %r0, %r1
  37  guard_class %r1 -> %i1
  40  getfield_raw_i %i1, FieldDescr<rpython.rlib.streamio.Stream_vtable.cls_seek> -> %i1
  45  -live- %f0, %i0, %i1, %r0, %r1
  45  int_guard_value %i1
  47  residual_call_irf_v %i1, <IndirectCallTargets>, I[%i0], R[%r1], F[%f0], <CallDescr(rLi) EF=7>
  57  -live- %r0
  57  setfield_gc_i %r0, $False, FieldDescr<rpython.rlib.streamio.TextInputFilter.inst_atcr>
  62  setfield_gc_r %r0, $<* struct rpy_string>, FieldDescr<rpython.rlib.streamio.TextInputFilter.inst_buf>
  67  void_return
  68  ---
  68  L1:
  68  goto L2
