--- old/src/share/vm/opto/ifg.cpp 2012-11-27 18:45:03.019207762 -0800 +++ new/src/share/vm/opto/ifg.cpp 2012-11-27 18:45:02.626743236 -0800 @@ -573,7 +573,7 @@ (n2lidx(def) && !liveout.member(n2lidx(def)) ) ) { b->_nodes.remove(j - 1); if( lrgs(r)._def == n ) lrgs(r)._def = 0; - n->disconnect_inputs(NULL); + n->disconnect_inputs(NULL, C); _cfg._bbs.map(n->_idx,NULL); n->replace_by(C->top()); // Since yanking a Node from block, high pressure moves up one