--- /dev/null	Fri Sep  9 14:16:44 2011
+++ new/agent/src/share/classes/sun/jvm/hotspot/opto/PhaseCFG.java	Fri Sep  9 14:17:05 2011
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+package sun.jvm.hotspot.opto;
+
+import java.util.*;
+import java.io.PrintStream;
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.runtime.*;
+import sun.jvm.hotspot.oops.*;
+import sun.jvm.hotspot.types.*;
+
+public class PhaseCFG extends Phase {
+  static {
+    VM.registerVMInitializedObserver(new Observer() {
+        public void update(Observable o, Object data) {
+          initialize(VM.getVM().getTypeDataBase());
+        }
+      });
+  }
+
+  private static synchronized void initialize(TypeDataBase db) throws WrongTypeException {
+    Type type      = db.lookupType("PhaseCFG");
+    numBlocksField = new CIntField(type.getCIntegerField("_num_blocks"), 0);
+    blocksField = type.getAddressField("_blocks");
+    bbsField = type.getAddressField("_bbs");
+    brootField = type.getAddressField("_broot");
+  }
+
+  private static CIntField numBlocksField;
+  private static AddressField blocksField;
+  private static AddressField bbsField;
+  private static AddressField brootField;
+
+  public PhaseCFG(Address addr) {
+    super(addr);
+  }
+
+  public void dump(PrintStream out) {
+    int addressSize = (int)VM.getVM().getAddressSize();
+    int numBlocks = (int)numBlocksField.getValue(getAddress());
+    Block_List blocks = new Block_List(getAddress().addOffsetTo(blocksField.getOffset()));
+    int offset = 0;
+    for (int i  = 0; i < numBlocks; i++) {
+      blocks.at(i).dump(out);
+    }
+  }
+}