   0  -live- %r0
   0  goto_if_not_ptr_iszero %r0, L1
   4  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
   6  ---
   6  L1:
   6  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x10097d34a10> -> %r1
  10  setfield_gc_r %r1, %r0, FieldDescr<pypy.objspace.std.unicodeobject.W_UnicodeObject.inst__value>
  15  ref_return %r1
