--- /dev/null	2016-05-31 09:42:47.975716356 -0700
+++ new/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/LogicNegationNode.java	2016-12-09 00:55:03.705052956 -0800
@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2013, 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.nodes;
+
+import static org.graalvm.compiler.nodeinfo.InputType.Condition;
+import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_0;
+import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_0;
+
+import org.graalvm.compiler.graph.NodeClass;
+import org.graalvm.compiler.graph.spi.Canonicalizable;
+import org.graalvm.compiler.graph.spi.CanonicalizerTool;
+import org.graalvm.compiler.nodeinfo.NodeInfo;
+
+/**
+ * Logic node that negates its argument.
+ */
+@NodeInfo(cycles = CYCLES_0, size = SIZE_0)
+public final class LogicNegationNode extends LogicNode implements Canonicalizable.Unary<LogicNode> {
+
+    public static final NodeClass<LogicNegationNode> TYPE = NodeClass.create(LogicNegationNode.class);
+    @Input(Condition) LogicNode value;
+
+    public LogicNegationNode(LogicNode value) {
+        super(TYPE);
+        this.value = value;
+    }
+
+    public static LogicNode create(LogicNode value) {
+        LogicNode synonym = findSynonym(value);
+        if (synonym != null) {
+            return synonym;
+        }
+        return new LogicNegationNode(value);
+    }
+
+    private static LogicNode findSynonym(LogicNode value) {
+        if (value instanceof LogicConstantNode) {
+            LogicConstantNode logicConstantNode = (LogicConstantNode) value;
+            return LogicConstantNode.forBoolean(!logicConstantNode.getValue());
+        } else if (value instanceof LogicNegationNode) {
+            return ((LogicNegationNode) value).getValue();
+        }
+        return null;
+    }
+
+    @Override
+    public LogicNode getValue() {
+        return value;
+    }
+
+    @Override
+    public LogicNode canonical(CanonicalizerTool tool, LogicNode forValue) {
+        LogicNode synonym = findSynonym(forValue);
+        if (synonym != null) {
+            return synonym;
+        }
+        return this;
+    }
+
+}