--- old/src/share/vm/opto/compile.cpp 2015-11-25 15:41:10.065784932 +0100 +++ new/src/share/vm/opto/compile.cpp 2015-11-25 15:41:09.941784938 +0100 @@ -2093,6 +2093,19 @@ // so keep only the actual candidates for optimizations. cleanup_expensive_nodes(igvn); + if (!failing() && RenumberLiveNodes && live_nodes() + NodeLimitFudgeFactor < unique()) { + initial_gvn()->replace_with(&igvn); + for_igvn()->clear(); + Unique_Node_List new_worklist(C->comp_arena()); + { + ResourceMark rm; + PhaseRenumberLive prl = PhaseRenumberLive(initial_gvn(), for_igvn(), &new_worklist); + } + set_for_igvn(&new_worklist); + igvn = PhaseIterGVN(initial_gvn()); + igvn.optimize(); + } + // Perform escape analysis if (_do_escape_analysis && ConnectionGraph::has_candidates(this)) { if (has_loops()) {