*** old/src/share/vm/opto/domgraph.cpp	Wed Aug  7 01:31:01 2013
--- new/src/share/vm/opto/domgraph.cpp	Wed Aug  7 01:31:01 2013

*** 103,114 ****
--- 103,114 ----
    for( i=_num_blocks; i>=2; i-- ) { // For all vertices in DFS order
      Tarjan *w = &tarjan[i];     // Get vertex from DFS
  
      // Step 2:
      Node *whead = w->_block->head();
!     for( uint j=1; j < whead->req(); j++ ) {
!       Block *b = _bbs[whead->in(j)->_idx];
!     for (uint j = 1; j < whead->req(); j++) {
!       Block* b = get_block_for_node(whead->in(j));
        Tarjan *vx = &tarjan[b->_pre_order];
        Tarjan *u = vx->EVAL();
        if( u->_semi < w->_semi )
          w->_semi = u->_semi;
      }