--- /dev/null	2017-01-22 10:16:57.869617664 -0800
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/nodes/type/MetaspacePointerStamp.java	2017-02-15 17:00:13.020849764 -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.hotspot.nodes.type;
+
+import org.graalvm.compiler.core.common.LIRKind;
+import org.graalvm.compiler.core.common.spi.LIRKindTool;
+import org.graalvm.compiler.core.common.type.AbstractPointerStamp;
+import org.graalvm.compiler.core.common.type.Stamp;
+import org.graalvm.compiler.debug.GraalError;
+
+import jdk.vm.ci.meta.Constant;
+import jdk.vm.ci.meta.MetaAccessProvider;
+import jdk.vm.ci.meta.ResolvedJavaType;
+
+public abstract class MetaspacePointerStamp extends AbstractPointerStamp {
+
+    protected MetaspacePointerStamp(boolean nonNull, boolean alwaysNull) {
+        super(nonNull, alwaysNull);
+    }
+
+    @Override
+    public LIRKind getLIRKind(LIRKindTool tool) {
+        return tool.getWordKind();
+    }
+
+    @Override
+    public Stamp empty() {
+        // there is no empty pointer stamp
+        return this;
+    }
+
+    @Override
+    public boolean isCompatible(Constant constant) {
+        return constant.isDefaultForKind();
+    }
+
+    @Override
+    public boolean hasValues() {
+        return true;
+    }
+
+    @Override
+    public ResolvedJavaType javaType(MetaAccessProvider metaAccess) {
+        throw GraalError.shouldNotReachHere("metaspace pointer has no Java type");
+    }
+
+    protected void appendString(StringBuilder str) {
+        str.append(nonNull() ? "!" : "").append(alwaysNull() ? " NULL" : "");
+    }
+
+}