   0  getfield_gc_r %r0, FieldDescr<pypy.objspace.std.bytearrayobject.W_BytearrayObject.inst__data> -> %r0
   5  getfield_gc_i %r0, FieldDescr<list.length> -> %i0
  10  int_add %i0, $1 -> %i0
  14  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x0000560933e7a9f8> -> %r0
  18  setfield_gc_i %r0, %i0, FieldDescr<pypy.objspace.std.intobject.W_IntObject.inst_intval>
  23  ref_return %r0
