   0  getfield_gc_r_pure %r0, FieldDescr<pypy.objspace.std.mapdict.PlainAttribute.inst_back> -> %r2
   5  -live- %r0, %r1, %r2
   8  guard_class %r2 -> %i0
  11  getfield_raw_i %i0, FieldDescr<pypy.objspace.std.mapdict.AbstractAttribute_vtable.cls_copy> -> %i0
  16  -live- %i0, %r0, %r1, %r2
  19  switch %i0, <SwitchDictDescr 0:L1, 1:L2, 2:L3>
  23  unreachable
  24  ---
  24  L1:
  24  -live- %r0, %r1, %r2
  27  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x0000aaab41edab10> -> %r3
  31  setfield_gc_r %r3, %r2, FieldDescr<pypy.objspace.std.mapdict.Object.inst_map>
  36  setfield_gc_r %r3, $<* None>, FieldDescr<pypy.objspace.std.mapdict.Object.inst_storage>
  41  L4:
  41  inline_call_r_v <JitCode 'PlainAttribute._copy_attr'>, R[%r0, %r1, %r3]
  48  -live- %r3
  51  ref_return %r3
  53  ---
  53  L2:
  53  -live- %r0, %r1, %r2
  56  inline_call_r_r <JitCode 'PlainAttribute.copy'>, R[%r2, %r1] -> %r3
  63  -live- %r0, %r1, %r3
  66  goto L4
  69  ---
  69  L3:
  69  -live-
  72  raise $<* struct object>
