src/share/vm/opto/ifg.cpp

*** 533,543 ****
        // they are not dead even when their result is not used.
        // For example, compareAndSwapL (and other CAS) and EncodeISOArray nodes.
        // The method add_input_to_liveout() keeps such nodes alive (put them on liveout list)
        // when it sees SCMemProj node in a block. Unfortunately SCMemProj node could be placed
        // in block in such order that KILL MachProj nodes are processed first.
!       if (def->has_out_with(Op_SCMemProj)) {
          return false;
        }
      }
      b->remove_node(location);
      LRG& lrg = lrgs(lid);
--- 533,543 ----
        // they are not dead even when their result is not used.
        // For example, compareAndSwapL (and other CAS) and EncodeISOArray nodes.
        // The method add_input_to_liveout() keeps such nodes alive (put them on liveout list)
        // when it sees SCMemProj node in a block. Unfortunately SCMemProj node could be placed
        // in block in such order that KILL MachProj nodes are processed first.
!       if (def->has_out_with(Op_SCMemProj) || def->has_out_with(Op_ShenandoahWBMemProj)) {
          return false;
        }
      }
      b->remove_node(location);
      LRG& lrg = lrgs(lid);
*** 681,691 ****
   */
  void PhaseChaitin::add_input_to_liveout(Block* b, Node* n, IndexSet* liveout, double cost, Pressure& int_pressure, Pressure& float_pressure) {
    JVMState* jvms = n->jvms();
    uint debug_start = jvms ? jvms->debug_start() : 999999;
  
!   for (uint k = ((n->Opcode() == Op_SCMemProj) ? 0:1); k < n->req(); k++) {
      Node* def = n->in(k);
      uint lid = _lrg_map.live_range_id(def);
      if (!lid) {
        continue;
      }
--- 681,691 ----
   */
  void PhaseChaitin::add_input_to_liveout(Block* b, Node* n, IndexSet* liveout, double cost, Pressure& int_pressure, Pressure& float_pressure) {
    JVMState* jvms = n->jvms();
    uint debug_start = jvms ? jvms->debug_start() : 999999;
  
!   for (uint k = ((n->Opcode() == Op_SCMemProj || n->Opcode() == Op_ShenandoahWBMemProj) ? 0:1); k < n->req(); k++) {
      Node* def = n->in(k);
      uint lid = _lrg_map.live_range_id(def);
      if (!lid) {
        continue;
      }