--- /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/stubs/StubCompilationIdentifier.java	2017-02-15 17:00:35.834851667 -0800
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2016, 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.stubs;
+
+import java.util.concurrent.atomic.AtomicLong;
+
+import org.graalvm.compiler.core.common.CompilationIdentifier;
+import org.graalvm.compiler.debug.GraalError;
+
+/**
+ * {@link CompilationIdentifier} for {@linkplain Stub stub compilations}.
+ */
+public class StubCompilationIdentifier implements CompilationIdentifier {
+
+    private static final AtomicLong uniqueStubIds = new AtomicLong();
+    private final long id;
+    private final Stub stub;
+
+    public StubCompilationIdentifier(Stub stub) {
+        this.id = uniqueStubIds.getAndIncrement();
+        this.stub = stub;
+    }
+
+    @Override
+    public final String toString() {
+        return toString(Verbosity.DETAILED);
+    }
+
+    @Override
+    public String toString(Verbosity verbosity) {
+        switch (verbosity) {
+            case ID:
+                return buildID();
+            case NAME:
+                return buildName();
+            case DETAILED:
+                return buildID() + '[' + buildName() + ']';
+        }
+        throw new GraalError("unknown verbosity: " + verbosity);
+    }
+
+    private String buildName() {
+        return stub.toString();
+    }
+
+    private String buildID() {
+        return "StubCompilation-" + id;
+    }
+
+}