   0  -live- %r0, %r1
   0  guard_class %r0 -> %i0
   3  -live- %i0, %r0, %r1
   3  goto_if_not_int_eq %i0, $<* struct object_vtable>, L1
   8  getfield_gc_r %r0, FieldDescr<rpython.rlib.streamio.StreamError.inst_message> -> %r1
  13  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x000002aac5501f30> -> %r0
  17  setfield_gc_r %r0, %r1, FieldDescr<pypy.objspace.std.bytesobject.W_BytesObject.inst__value>
  22  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x000002aac6164720> -> %r1
  26  setfield_gc_r %r1, $<* struct pypy.interpreter.baseobjspace.W_Root>, FieldDescr<pypy.interpreter.error.OperationError.inst_w_type>
  31  setfield_gc_r %r1, %r0, FieldDescr<pypy.interpreter.error.OperationError.inst__w_value>
  36  setfield_gc_r %r1, $<* struct pypy.interpreter.baseobjspace.W_Root>, FieldDescr<pypy.interpreter.error.OperationError.inst__application_traceback>
  41  ref_return %r1
  43  ---
  43  L1:
  43  -live- %r0, %r1
  43  guard_class %r0 -> %i0
  46  -live- %i0, %r0, %r1
  46  goto_if_not_int_eq %i0, $<* struct object_vtable>, L2
  51  inline_call_r_r <JitCode 'wrap_oserror2__exceptions_IOError'>, R[%r0, %r1, $<* struct pypy.objspace.std.typeobject.W_TypeObject>] -> %r1
  59  -live- %r1
  59  ref_return %r1
  61  ---
  61  L2:
  61  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x000002aac6164720> -> %r1
  65  setfield_gc_r %r1, $<* struct pypy.interpreter.baseobjspace.W_Root>, FieldDescr<pypy.interpreter.error.OperationError.inst_w_type>
  70  setfield_gc_r %r1, $<* struct pypy.interpreter.baseobjspace.W_Root>, FieldDescr<pypy.interpreter.error.OperationError.inst__w_value>
  75  setfield_gc_r %r1, $<* struct pypy.interpreter.baseobjspace.W_Root>, FieldDescr<pypy.interpreter.error.OperationError.inst__application_traceback>
  80  ref_return %r1
