--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/tools/IdealGraphVisualizer/Graal/src/com/sun/hotspot/igv/graal/filters/GraalCFGFilter.java	Wed Nov 16 13:30:33 2011 +0100
@@ -0,0 +1,68 @@
+/*
+ * 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+package com.sun.hotspot.igv.graal.filters;
+
+import com.sun.hotspot.igv.data.Properties;
+import com.sun.hotspot.igv.filter.AbstractFilter;
+import com.sun.hotspot.igv.graph.Connection;
+import com.sun.hotspot.igv.graph.Diagram;
+import com.sun.hotspot.igv.graph.Figure;
+import com.sun.hotspot.igv.graph.InputSlot;
+import java.awt.Color;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+public class GraalCFGFilter extends AbstractFilter {
+    
+    public String getName() {
+        return "Graal CFG Filter";
+    }
+
+    public void apply(Diagram d) {
+        List<Figure> figures = d.getFigures();
+        Set<Figure> figuresToRemove = new HashSet<Figure>();
+        Set<Connection> connectionsToRemove = new HashSet<Connection>();
+        for (Figure f : figures) {
+            Properties p = f.getProperties();
+            final String prop = p.get("probability");
+            
+            if (prop == null) {
+                figuresToRemove.add(f);
+            }
+            
+            int predCount = Integer.parseInt(p.get("predecessorCount"));
+            for (InputSlot is : f.getInputSlots()) {
+                Color color;
+                if (is.getPosition() >= predCount) {
+                    connectionsToRemove.addAll(is.getConnections());
+                }
+            }
+        }
+        d.removeAllFigures(figuresToRemove);
+        for (Connection c : connectionsToRemove) {
+            c.remove();
+        }
+    }
+}