*** old/src/share/vm/opto/node.hpp	Wed Oct  1 10:07:21 2008
--- new/src/share/vm/opto/node.hpp	Wed Oct  1 10:07:21 2008

*** 1318,1328 ****
--- 1318,1329 ----
        Node_List::push(b);
    }
    Node *pop() {
      if( _clock_index >= size() ) _clock_index = 0;
      Node *b = at(_clock_index);
-     map( _clock_index++, Node_List::pop());
+     if (size() != 0) _clock_index++; // Always start from 0
      _in_worklist >>= b->_idx;
      return b;
    }
    Node *remove( uint i ) {
      Node *b = Node_List::at(i);