   0  setfield_gc_r %r0, %r1, FieldDescr<pypy.interpreter.typedef.W_UnicodeDecodeErrorUserWeakrefable.inst_map>
   5  new_array_clear $0, <rpython.jit.backend.llsupport.descr.ArrayDescr object at 0x0000aaab7447a2c0> -> %r1
  10  setfield_gc_r %r0, %r1, FieldDescr<pypy.interpreter.typedef.W_UnicodeDecodeErrorUserWeakrefable.inst_storage>
  15  void_return
