--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/GraalCompiler/src/com/sun/c1x/ir/Switch.java	Wed Apr 27 11:50:44 2011 +0200
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2009, 2010, 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.c1x.ir;
+
+import java.util.*;
+
+import com.sun.c1x.value.*;
+import com.sun.cri.ci.*;
+
+/**
+ * The {@code Switch} class is the base of both lookup and table switches.
+ *
+ * @author Ben L. Titzer
+ */
+public abstract class Switch extends BlockEnd {
+
+    Value value;
+
+    /**
+     * Constructs a new Switch.
+     * @param value the instruction that provides the value to be switched over
+     * @param successors the list of successors of this switch
+     * @param stateBefore the state before the switch
+     * @param isSafepoint {@code true} if this switch is a safepoint
+     */
+    public Switch(Value value, List<BlockBegin> successors, FrameState stateBefore, boolean isSafepoint) {
+        super(CiKind.Illegal, stateBefore, isSafepoint, successors);
+        this.value = value;
+    }
+
+    /**
+     * Gets the instruction that provides the input value to this switch.
+     * @return the instruction producing the input value
+     */
+    public Value value() {
+        return value;
+    }
+
+    /**
+     * Gets the number of cases that this switch covers (excluding the default case).
+     * @return the number of cases
+     */
+    public int numberOfCases() {
+        return successors.size() - 1;
+    }
+
+    /**
+     * Iterates over the inputs to this instruction.
+     * @param closure the closure to apply
+     */
+    @Override
+    public void inputValuesDo(ValueClosure closure) {
+        value = closure.apply(value);
+    }
+}