49     }
  50 
  51     public Label() {
  52     }
  53 
  54     /**
  55      * Binds the label to the specified position.
  56      * 
  57      * @param pos the position
  58      */
  59     protected void bind(int pos) {
  60         this.position = pos;
  61         assert isBound();
  62     }
  63 
  64     public boolean isBound() {
  65         return position >= 0;
  66     }
  67 
  68     public void addPatchAt(int branchLocation) {
  69         assert !isBound() : "Label is already bound";
  70         patchPositions.add(branchLocation);
  71     }
  72 
  73     protected void patchInstructions(AbstractAssembler masm) {
  74         assert isBound() : "Label should be bound";
  75         int target = position;
  76         for (int i = 0; i < patchPositions.size(); ++i) {
  77             int pos = patchPositions.get(i);
  78             masm.patchJumpTarget(pos, target);
  79         }
  80     }
  81 
  82     @Override
  83     public String toString() {
  84         return isBound() ? String.valueOf(position()) : "?";
  85     }
  86 }

  49     }
  50 
  51     public Label() {
  52     }
  53 
  54     /**
  55      * Binds the label to the specified position.
  56      * 
  57      * @param pos the position
  58      */
  59     protected void bind(int pos) {
  60         this.position = pos;
  61         assert isBound();
  62     }
  63 
  64     public boolean isBound() {
  65         return position >= 0;
  66     }
  67 
  68     public void addPatchAt(int branchLocation) {
  69         assert !isBound() : "Label is already bound " + this + " " + branchLocation + " at position " + position;
  70         patchPositions.add(branchLocation);
  71     }
  72 
  73     protected void patchInstructions(AbstractAssembler masm) {
  74         assert isBound() : "Label should be bound";
  75         int target = position;
  76         for (int i = 0; i < patchPositions.size(); ++i) {
  77             int pos = patchPositions.get(i);
  78             masm.patchJumpTarget(pos, target);
  79         }
  80     }
  81 
  82     @Override
  83     public String toString() {
  84         return isBound() ? String.valueOf(position()) : "?";
  85     }
  86 }