   0  getfield_gc_r %r0, FieldDescr<pypy.module._file.interp_file.W_File.inst_stream> -> %r0
   5  -live- %f0, %i0, %r0
   8  goto_if_not_ptr_iszero %r0, L1
  12  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x3a14e3b0> -> %r0
  16  setfield_gc_r %r0, $<* struct rpy_string>, FieldDescr<pypy.interpreter.error.OpErrFmtNoArgs.inst__value>
  21  setfield_gc_r %r0, $<* struct pypy.interpreter.baseobjspace.W_Root>, FieldDescr<pypy.interpreter.error.OperationError.inst_w_type>
  26  assert_not_none %r0
  28  -live- %r0
  31  raise %r0
  33  ---
  33  L1:
  33  -live- %f0, %i0, %r0
  36  guard_class %r0 -> %i1
  39  getfield_raw_i %i1, FieldDescr<rpython.rlib.streamio.Stream_vtable.cls_seek> -> %i1
  44  -live- %f0, %i0, %i1, %r0
  47  int_guard_value %i1
  49  residual_call_irf_v %i1, <IndirectCallTargets>, I[%i0], R[%r0], F[%f0], <CallDescr(rLi) EF=7>
  59  -live-
  62  void_return
