   0  getfield_gc_r %r0, FieldDescr<pypy.module._file.interp_file.W_File.inst_stream> -> %r1
   5  -live- %r0, %r1
   8  goto_if_not_ptr_iszero %r1, L1
  12  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x00005609330fe8a8> -> %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  getfield_gc_i %r0, FieldDescr<pypy.module._file.interp_file.W_File.inst_fd> -> %i0
  38  int_return %i0
