   0  getfield_gc_i %r0, FieldDescr<pypy.module.struct.formatiterator.UnpackFormatIterator.inst_pos> -> %i1
   5  int_add %i1, %i0 -> %i2
   9  int_add %i1, %i0 -> %i3
  13  getfield_gc_i %r0, FieldDescr<pypy.module.struct.formatiterator.UnpackFormatIterator.inst_length> -> %i4
  18  -live- %i0, %i1, %i2, %i3, %i4, %r0
  18  goto_if_not_int_le %i3, %i4, L1
  23  int_add %i1, %i0 -> %i3
  27  setfield_gc_i %r0, %i3, FieldDescr<pypy.module.struct.formatiterator.UnpackFormatIterator.inst_pos>
  32  getfield_gc_r %r0, FieldDescr<pypy.module.struct.formatiterator.UnpackFormatIterator.inst_buf> -> %r0
  37  -live- %i0, %i1, %i2, %r0
  37  guard_class %r0 -> %i3
  40  getfield_raw_i %i3, FieldDescr<rpython.rlib.buffer.Buffer_vtable.cls_getslice> -> %i3
  45  -live- %i0, %i1, %i2, %i3, %r0
  45  int_guard_value %i3
  47  residual_call_ir_r %i3, <IndirectCallTargets>, I[%i1, %i2, $1, %i0], R[%r0], <CallDescr(riiii) EF=7> -> %r0
  59  -live- %r0
  59  ref_return %r0
  61  ---
  61  L1:
  61  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x7fff4dabdd70> -> %r0
  65  setfield_gc_r %r0, $<* struct rpy_string>, FieldDescr<rpython.rlib.rstruct.error.StructError.inst_msg>
  70  assert_not_none %r0
  72  -live- %r0
  72  guard_class %r0 -> %i0
  75  -live- %r0
  75  raise %r0
