--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/GraalCompiler/src/com/sun/c1x/ir/UnsafeOp.java	Wed Apr 27 11:50:44 2011 +0200
@@ -0,0 +1,45 @@
+/*
+ * 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 com.sun.cri.ci.*;
+
+/**
+ * The {@code UnsafeOp} class is the base of all unsafe operations.
+ *
+ * @author Ben L. Titzer
+ */
+public abstract class UnsafeOp extends Instruction {
+    public final CiKind unsafeOpKind;
+
+    /**
+     * Creates a new UnsafeOp instruction.
+     * @param unsafeOpKind the kind of the operation
+     * @param isStore {@code true} if this is a store operation
+     */
+    public UnsafeOp(CiKind unsafeOpKind, boolean isStore) {
+        super(isStore ? CiKind.Void : unsafeOpKind.stackKind());
+        this.unsafeOpKind = unsafeOpKind;
+    }
+
+}