--- /dev/null	2017-01-22 10:16:57.869617664 -0800
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.graph/src/org/graalvm/compiler/graph/InputEdges.java	2017-02-15 16:58:34.819543633 -0800
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2014, 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.graph;
+
+import static org.graalvm.compiler.graph.Edges.Type.Inputs;
+
+import java.util.ArrayList;
+
+import org.graalvm.compiler.graph.NodeClass.InputInfo;
+import org.graalvm.compiler.nodeinfo.InputType;
+
+public final class InputEdges extends Edges {
+
+    private final InputType[] inputTypes;
+    private final boolean[] isOptional;
+
+    public InputEdges(int directCount, ArrayList<InputInfo> edges) {
+        super(Inputs, directCount, edges);
+
+        this.inputTypes = new InputType[edges.size()];
+        this.isOptional = new boolean[edges.size()];
+        for (int i = 0; i < edges.size(); i++) {
+            this.inputTypes[i] = edges.get(i).inputType;
+            this.isOptional[i] = edges.get(i).optional;
+        }
+    }
+
+    public static void translateInto(InputEdges inputs, ArrayList<InputInfo> infos) {
+        for (int index = 0; index < inputs.getCount(); index++) {
+            infos.add(new InputInfo(inputs.offsets[index], inputs.getName(index), inputs.getType(index), inputs.getDeclaringClass(index), inputs.inputTypes[index], inputs.isOptional(index)));
+        }
+    }
+
+    public InputType getInputType(int index) {
+        return inputTypes[index];
+    }
+
+    public boolean isOptional(int index) {
+        return isOptional[index];
+    }
+
+    @Override
+    public void update(Node node, Node oldValue, Node newValue) {
+        node.updateUsages(oldValue, newValue);
+    }
+}