   0  getfield_gc_i %r0, FieldDescr<pypy.module.struct.formatiterator.PackFormatIterator.inst_bigendian> -> %i1
   5  -live- %i0, %i1, %r0
   5  goto_if_not_int_ne %i1, $1, L1
  10  raise $<* struct object>
  12  ---
  12  L1:
  12  getfield_gc_r %r0, FieldDescr<pypy.module.struct.formatiterator.PackFormatIterator.inst_wbuf> -> %r1
  17  getfield_gc_i %r0, FieldDescr<pypy.module.struct.formatiterator.PackFormatIterator.inst_pos> -> %i1
  22  -live- %i0, %i1, %r0, %r1
  22  guard_class %r1 -> %i2
  25  getfield_raw_i %i2, FieldDescr<rpython.rlib.buffer.Buffer_vtable.cls_typed_write> -> %i2
  30  getfield_raw_i %i2, FieldDescr<specfunc.variant9> -> %i2
  35  -live- %i0, %i1, %i2, %r0, %r1
  35  int_guard_value %i2
  37  residual_call_ir_v %i2, <IndirectCallTargets>, I[%i1, %i0], R[%r1], <CallDescr(rii) EF=7>
  46  -live- %r0
  46  getfield_gc_i %r0, FieldDescr<pypy.module.struct.formatiterator.PackFormatIterator.inst_pos> -> %i0
  51  int_add %i0, $8 -> %i0
  55  setfield_gc_i %r0, %i0, FieldDescr<pypy.module.struct.formatiterator.PackFormatIterator.inst_pos>
  60  void_return
