*** old/src/share/vm/opto/idealGraphPrinter.cpp	Mon Oct 14 12:23:51 2013
--- new/src/share/vm/opto/idealGraphPrinter.cpp	Mon Oct 14 12:23:51 2013

*** 614,624 ****
--- 614,628 ----
  
      if (_chaitin && _chaitin != (PhaseChaitin *)0xdeadbeef) {
        buffer[0] = 0;
        _chaitin->dump_register(node, buffer);
        print_prop("reg", buffer);
!       print_prop("lrg", _chaitin->_lrg_map.live_range_id(node));
!       uint lrg_id = 0;
+       if (node->_idx < _chaitin->_lrg_map.size()) {
+         lrg_id = _chaitin->_lrg_map.live_range_id(node);
+       }
+       print_prop("lrg", lrg_id);
      }
  
      node->_in_dump_cnt--;
  #endif