--- /dev/null	2017-01-22 10:16:57.869617664 -0800
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.common/src/org/graalvm/compiler/core/common/type/ArithmeticStamp.java	2017-02-15 16:57:10.040853046 -0800
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2014, 2015, 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 org.graalvm.compiler.core.common.type;
+
+import java.nio.ByteBuffer;
+import java.util.Objects;
+
+import jdk.vm.ci.meta.SerializableConstant;
+
+/**
+ * Type describing values that support arithmetic operations.
+ */
+public abstract class ArithmeticStamp extends Stamp {
+
+    private final ArithmeticOpTable ops;
+
+    protected ArithmeticStamp(ArithmeticOpTable ops) {
+        this.ops = ops;
+    }
+
+    public ArithmeticOpTable getOps() {
+        return ops;
+    }
+
+    public abstract SerializableConstant deserialize(ByteBuffer buffer);
+
+    @Override
+    public Stamp improveWith(Stamp other) {
+        return this.join(other);
+    }
+
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = 1;
+        result = prime * result + ops.hashCode();
+        return result;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (!(obj instanceof ArithmeticStamp)) {
+            return false;
+        }
+        assert Objects.equals(ops, ((ArithmeticStamp) obj).ops);
+        return true;
+    }
+}