   0  getfield_gc_r_pure %r0, FieldDescr<pypy.objspace.std.unicodeobject.W_UnicodeObject.inst__value> -> %r0
   5  -live- %i0, %r0, %r1
   5  goto_if_not_ptr_iszero %r1, L1
   9  L2:
   9  residual_call_ir_r $<* fn split__unicode_NoneType>, I[%i0], R[%r0], <CallDescr(ri) EF=5> -> %r0
  18  -live- %r0
  18  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x7fff50cced70> -> %r1
  22  setfield_gc_r %r1, $<* struct pypy.objspace.std.listobject.ListStrategy>, FieldDescr<pypy.objspace.std.listobject.W_ListObject.inst_strategy>
  27  setfield_gc_r %r1, %r0, FieldDescr<pypy.objspace.std.listobject.W_ListObject.inst_lstorage>
  32  ref_return %r1
  34  ---
  34  L1:
  34  inline_call_r_i <JitCode 'W_Root.is_w'>, R[$<* struct pypy.interpreter.baseobjspace.W_Root>, %r1] -> %i1
  41  -live- %i0, %i1, %r0, %r1
  41  -live- %i0, %i1, %r0, %r1
  41  goto_if_not %i1, L3
  45  goto L2
  48  ---
  48  L3:
  48  inline_call_r_r <JitCode '_op_val'>, R[%r1, $<* struct rpy_string>] -> %r1
  55  -live- %i0, %r0, %r1
  55  unicodelen %r1 -> %i1
  58  -live- %i0, %i1, %r0, %r1
  58  goto_if_not_int_is_zero %i1, L4
  62  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x7fff4a07fb90> -> %r0
  66  setfield_gc_r %r0, $<* struct rpy_string>, FieldDescr<pypy.interpreter.error.OpErrFmtNoArgs.inst__value>
  71  setfield_gc_r %r0, $<* struct pypy.interpreter.baseobjspace.W_Root>, FieldDescr<pypy.interpreter.error.OperationError.inst_w_type>
  76  assert_not_none %r0
  78  -live- %r0
  78  guard_class %r0 -> %i1
  81  -live- %r0
  81  raise %r0
  83  ---
  83  L4:
  83  residual_call_ir_r $<* fn split__unicode_unicode>, I[%i0], R[%r0, %r1], <CallDescr(rri) EF=5> -> %r0
  93  -live- %r0
  93  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x7fff50cced70> -> %r1
  97  setfield_gc_r %r1, $<* struct pypy.objspace.std.listobject.ListStrategy>, FieldDescr<pypy.objspace.std.listobject.W_ListObject.inst_strategy>
 102  setfield_gc_r %r1, %r0, FieldDescr<pypy.objspace.std.listobject.W_ListObject.inst_lstorage>
 107  ref_return %r1
