   0  getfield_gc_i_pure %r0, FieldDescr<pypy.module._cffi_backend.libraryobj.W_Library.inst_handle> -> %i0
   5  -live- %i0, %r0
   5  goto_if_not_int_is_true %i0, L1
   9  setfield_gc_i %r0, $<* None>, FieldDescr<pypy.module._cffi_backend.libraryobj.W_Library.inst_handle>
  14  residual_call_ir_i $<* fn dlclose>, I[%i0], R[], <CallDescr(i) EF=2> -> %i0
  22  void_return
  23  ---
  23  L1:
  23  void_return
