agent/src/share/classes/sun/jvm/hotspot/opto/Block.java

rev 5903 : 8033260: assert(lrg._area >= 0.0) failed: negative spill area
Summary: Change type from float to double on block frequency, and add check for +Inf - +Inf operation
Reviewed-by:

*** 46,76 ****
      succsField = type.getAddressField("_succs");
      numSuccsField = new CIntField(type.getCIntegerField("_num_succs"), 0);
      preOrderField = new CIntField(type.getCIntegerField("_pre_order"), 0);
      domDepthField = new CIntField(type.getCIntegerField("_dom_depth"), 0);
      idomField = type.getAddressField("_idom");
!     freqField = type.getJFloatField("_freq");
    }
  
    private static AddressField nodesField;
    private static AddressField succsField;
    private static CIntField numSuccsField;
    private static CIntField preOrderField;
    private static CIntField domDepthField;
    private static AddressField idomField;
!   private static JFloatField freqField;
  
    public Block(Address addr) {
      super(addr);
    }
  
    public int preOrder() {
      return (int)preOrderField.getValue(getAddress());
    }
  
!   public float freq() {
!     return (float)freqField.getValue(getAddress());
    }
  
    public Node_List nodes() {
      return new Node_List(getAddress().addOffsetTo(nodesField.getOffset()));
    }
--- 46,76 ----
      succsField = type.getAddressField("_succs");
      numSuccsField = new CIntField(type.getCIntegerField("_num_succs"), 0);
      preOrderField = new CIntField(type.getCIntegerField("_pre_order"), 0);
      domDepthField = new CIntField(type.getCIntegerField("_dom_depth"), 0);
      idomField = type.getAddressField("_idom");
!     freqField = type.getJDoubleField("_freq");
    }
  
    private static AddressField nodesField;
    private static AddressField succsField;
    private static CIntField numSuccsField;
    private static CIntField preOrderField;
    private static CIntField domDepthField;
    private static AddressField idomField;
!   private static JDoubleField freqField;
  
    public Block(Address addr) {
      super(addr);
    }
  
    public int preOrder() {
      return (int)preOrderField.getValue(getAddress());
    }
  
!   public double freq() {
!     return (double)freqField.getValue(getAddress());
    }
  
    public Node_List nodes() {
      return new Node_List(getAddress().addOffsetTo(nodesField.getOffset()));
    }