   0  getfield_gc_r_pure %r0, FieldDescr<pypy.objspace.std.unicodeobject.W_UnicodeObject.inst__utf8> -> %r0
   5  residual_call_r_r $<* fn unicode_escape>, R[%r0], <CallDescr(r) EF=4> -> %r0
  12  -live- %r0
  15  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x0000563a68dd2100> -> %r1
  19  setfield_gc_r %r1, %r0, FieldDescr<pypy.objspace.std.bytesobject.W_BytesObject.inst__value>
  24  ref_return %r1
