--- /dev/null	2017-01-22 10:16:57.869617664 -0800
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.phases.common/src/org/graalvm/compiler/phases/common/inlining/walker/CallsiteHolder.java	2017-02-15 17:08:20.061072645 -0800
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2011, 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.phases.common.inlining.walker;
+
+import org.graalvm.compiler.nodes.StructuredGraph;
+
+import jdk.vm.ci.meta.ResolvedJavaMethod;
+
+/**
+ * Information about a graph that will potentially be inlined. This includes tracking the
+ * invocations in graph that will subject to inlining themselves.
+ */
+public abstract class CallsiteHolder {
+
+    /**
+     * Gets the method associated with the {@linkplain #graph() graph} represented by this object.
+     */
+    public abstract ResolvedJavaMethod method();
+
+    /**
+     * The stack realized by {@link InliningData} grows upon {@link InliningData#moveForward()}
+     * deciding to explore (depth-first) a callsite of the graph associated to this
+     * {@link CallsiteHolder}. The list of not-yet-considered callsites is managed by
+     * {@link CallsiteHolderExplorable}, and this method reports whether any such candidates remain.
+     */
+    public abstract boolean hasRemainingInvokes();
+
+    /**
+     * The graph about which this object contains inlining information.
+     */
+    public abstract StructuredGraph graph();
+
+}