   0  inline_call_irf_f <JitCode 'do_unpack_fastpath__rpython_rlib_rstruct_runpack_ReaderForPos0'>, I[], R[%r0], F[] -> %f0
   8  -live- %f0, %r0
  11  catch_exception L1
  14  L2:
  14  setfield_gc_f %r0, %f0, FieldDescr<rpython.rlib.rstruct.runpack.ReaderForPos0.inst_value>
  19  void_return
  20  ---
  20  L1:
  20  goto_if_exception_mismatch $<* struct object_vtable>, L3
  24  getfield_gc_r %r0, FieldDescr<rpython.rlib.rstruct.runpack.ReaderForPos0.inst_mr> -> %r1
  29  getfield_gc_i %r1, FieldDescr<rpython.rlib.rstruct.runpack.MasterReader.inst_inputpos> -> %i0
  34  int_add %i0, $8 -> %i1
  38  getfield_gc_i %r1, FieldDescr<rpython.rlib.rstruct.runpack.MasterReader.inst_length> -> %i2
  43  -live- %i0, %i1, %i2, %r0, %r1
  46  goto_if_not_int_le %i1, %i2, L4
  51  int_add %i0, $8 -> %i1
  55  setfield_gc_i %r1, %i1, FieldDescr<rpython.rlib.rstruct.runpack.MasterReader.inst_inputpos>
  60  getfield_gc_r %r1, FieldDescr<rpython.rlib.rstruct.runpack.MasterReader.inst_inputbuf> -> %r1
  65  inline_call_ir_r <JitCode 'StringBuffer.getslice'>, I[%i0, $1, $8], R[%r1] -> %r1
  75  -live- %r0, %r1
  78  gc_load_indexed_f %r1, $0, $<ItemOffset <Char> 1>, $< <FieldOffset <GcStruct rpy_string { hash, chars }> 'chars'> + < ArrayItemsOffset <Array of Char {'immutable': True, 'extra_item_after_alloc': 1} > > >, $<ItemOffset <Float> 1> -> %f0
  85  goto L2
  88  ---
  88  L4:
  88  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x0000aaab7eaf8410> -> %r1
  92  setfield_gc_r %r1, $<* struct rpy_string>, FieldDescr<rpython.rlib.rstruct.error.StructError.inst_msg>
  97  assert_not_none %r1
  99  -live- %r1
 102  raise %r1
 104  ---
 104  L3:
 104  reraise
