src/share/vm/opto/callnode.cpp

*** 393,404 ****
          st->print(" MON-BOX%d=%s+%d",
                     i,
                     OptoReg::regname(OptoReg::c_frame_pointer),
                     regalloc->reg2offset(box_reg));
        }
!       format_helper( regalloc, st, obj, "MON-OBJ[", i, &scobjs );
      }
  
      for (i = 0; i < (uint)scobjs.length(); i++) {
        // Scalar replaced objects.
        st->print_cr("");
        st->print("        # ScObj" INT32_FORMAT " ", i);
--- 393,410 ----
          st->print(" MON-BOX%d=%s+%d",
                     i,
                     OptoReg::regname(OptoReg::c_frame_pointer),
                     regalloc->reg2offset(box_reg));
        }
!       const char* obj_msg = "MON-OBJ[";
!       if (EliminateLocks) {
!         while( !box->is_BoxLock() )  box = box->in(1);
!         if (box->as_BoxLock()->is_eliminated())
!           obj_msg = "MON-OBJ(LOCK ELIMINATED)[";
        }
+       format_helper( regalloc, st, obj, obj_msg, i, &scobjs );
+     }
  
      for (i = 0; i < (uint)scobjs.length(); i++) {
        // Scalar replaced objects.
        st->print_cr("");
        st->print("        # ScObj" INT32_FORMAT " ", i);
*** 906,917 ****
    int nextmon = jvms()->scloff();
    if (GenerateSynchronizationCode) {
      add_req(lock->box_node());
      add_req(lock->obj_node());
    } else {
!     add_req(NULL);
!     add_req(NULL);
    }
    jvms()->set_scloff(nextmon+MonitorEdges);
    jvms()->set_endoff(req());
  }
  
--- 912,924 ----
    int nextmon = jvms()->scloff();
    if (GenerateSynchronizationCode) {
      add_req(lock->box_node());
      add_req(lock->obj_node());
    } else {
!     Node* top = Compile::current()->top();
!     add_req(top);
!     add_req(top);
    }
    jvms()->set_scloff(nextmon+MonitorEdges);
    jvms()->set_endoff(req());
  }
  
*** 1380,1390 ****
    // one computed above.
    if (result == NULL && can_reshape && EliminateLocks && !is_eliminated()) {
      //
      // If we are locking an unescaped object, the lock/unlock is unnecessary
      //
!     ConnectionGraph *cgr = Compile::current()->congraph();
      PointsToNode::EscapeState es = PointsToNode::GlobalEscape;
      if (cgr != NULL)
        es = cgr->escape_state(obj_node(), phase);
      if (es != PointsToNode::UnknownEscape && es != PointsToNode::GlobalEscape) {
        // Mark it eliminated to update any counters
--- 1387,1397 ----
    // one computed above.
    if (result == NULL && can_reshape && EliminateLocks && !is_eliminated()) {
      //
      // If we are locking an unescaped object, the lock/unlock is unnecessary
      //
!     ConnectionGraph *cgr = phase->C->congraph();
      PointsToNode::EscapeState es = PointsToNode::GlobalEscape;
      if (cgr != NULL)
        es = cgr->escape_state(obj_node(), phase);
      if (es != PointsToNode::UnknownEscape && es != PointsToNode::GlobalEscape) {
        // Mark it eliminated to update any counters
*** 1448,1457 ****
--- 1455,1465 ----
          for (int i = 0; i < lock_ops.length(); i++) {
            AbstractLockNode* lock = lock_ops.at(i);
  
            // Mark it eliminated to update any counters
            lock->set_eliminated();
+           lock->set_coarsened();
          }
        } else if (result != NULL && ctrl->is_Region() &&
                   iter->_worklist.member(ctrl)) {
          // We weren't able to find any opportunities but the region this
          // lock is control dependent on hasn't been processed yet so put
*** 1482,1492 ****
    // Escape state is defined after Parse phase.
    if (result == NULL && can_reshape && EliminateLocks && !is_eliminated()) {
      //
      // If we are unlocking an unescaped object, the lock/unlock is unnecessary.
      //
!     ConnectionGraph *cgr = Compile::current()->congraph();
      PointsToNode::EscapeState es = PointsToNode::GlobalEscape;
      if (cgr != NULL)
        es = cgr->escape_state(obj_node(), phase);
      if (es != PointsToNode::UnknownEscape && es != PointsToNode::GlobalEscape) {
        // Mark it eliminated to update any counters
--- 1490,1500 ----
    // Escape state is defined after Parse phase.
    if (result == NULL && can_reshape && EliminateLocks && !is_eliminated()) {
      //
      // If we are unlocking an unescaped object, the lock/unlock is unnecessary.
      //
!     ConnectionGraph *cgr = phase->C->congraph();
      PointsToNode::EscapeState es = PointsToNode::GlobalEscape;
      if (cgr != NULL)
        es = cgr->escape_state(obj_node(), phase);
      if (es != PointsToNode::UnknownEscape && es != PointsToNode::GlobalEscape) {
        // Mark it eliminated to update any counters