--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.max.cri/src/com/sun/cri/ci/CiValueUtil.java	Mon Jan 02 17:39:20 2012 -0800
@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2012, 2012, 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.cri.ci;
+
+public class CiValueUtil {
+    public static boolean isIllegal(CiValue value) {
+        assert value != null;
+        return value == CiValue.IllegalValue;
+    }
+
+    public static boolean isLegal(CiValue value) {
+        return !isIllegal(value);
+    }
+
+    public static boolean isVirtualObject(CiValue value) {
+        assert value != null;
+        return value instanceof CiVirtualObject;
+    }
+
+
+    public static boolean isVariable(CiValue value) {
+        assert value != null;
+        return value instanceof CiVariable;
+    }
+
+    public static CiVariable asVariable(CiValue value) {
+        assert value != null;
+        return (CiVariable) value;
+    }
+
+
+    public static boolean isConstant(CiValue value) {
+        assert value != null;
+        return value instanceof CiConstant;
+    }
+
+
+    public static boolean isStackSlot(CiValue value) {
+        assert value != null;
+        return value instanceof CiStackSlot;
+    }
+
+    public static CiStackSlot asStackSlot(CiValue value) {
+        assert value != null;
+        return (CiStackSlot) value;
+    }
+
+
+    public static boolean isRegister(CiValue value) {
+        assert value != null;
+        return value instanceof CiRegisterValue;
+    }
+
+    public static CiRegister asRegister(CiValue value) {
+        assert value != null;
+        return ((CiRegisterValue) value).reg;
+    }
+
+    public static CiRegister asIntReg(CiValue value) {
+        assert value.kind == CiKind.Int || value.kind == CiKind.Jsr;
+        return asRegister(value);
+    }
+
+    public static CiRegister asLongReg(CiValue value) {
+        assert value.kind == CiKind.Long : value.kind;
+        return asRegister(value);
+    }
+
+    public static CiRegister asObjectReg(CiValue value) {
+        assert value.kind == CiKind.Object;
+        return asRegister(value);
+    }
+
+    public static CiRegister asFloatReg(CiValue value) {
+        assert value.kind == CiKind.Float;
+        return asRegister(value);
+    }
+
+    public static CiRegister asDoubleReg(CiValue value) {
+        assert value.kind == CiKind.Double;
+        return asRegister(value);
+    }
+}