--- /dev/null	2017-11-16 08:17:56.803999947 +0100
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/calc/TernaryNode.java	2019-05-14 01:06:16.680489758 +0200
@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2019, 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.calc;
+
+import org.graalvm.compiler.core.common.type.Stamp;
+import org.graalvm.compiler.graph.NodeClass;
+import org.graalvm.compiler.graph.spi.Canonicalizable;
+import org.graalvm.compiler.nodeinfo.NodeInfo;
+import org.graalvm.compiler.nodes.NodeView;
+import org.graalvm.compiler.nodes.ValueNode;
+
+/**
+ * The {@code TernaryNode} class is the base of arithmetic and logic operations with three inputs.
+ */
+@NodeInfo
+public abstract class TernaryNode extends FloatingNode implements Canonicalizable.Ternary<ValueNode> {
+
+    public static final NodeClass<TernaryNode> TYPE = NodeClass.create(TernaryNode.class);
+    @Input protected ValueNode x;
+    @Input protected ValueNode y;
+    @Input protected ValueNode z;
+
+    @Override
+    public ValueNode getX() {
+        return x;
+    }
+
+    @Override
+    public ValueNode getY() {
+        return y;
+    }
+
+    @Override
+    public ValueNode getZ() {
+        return z;
+    }
+
+    public void setX(ValueNode x) {
+        updateUsages(this.x, x);
+        this.x = x;
+    }
+
+    public void setY(ValueNode y) {
+        updateUsages(this.y, y);
+        this.y = y;
+    }
+
+    public void setZ(ValueNode z) {
+        updateUsages(this.z, z);
+        this.z = z;
+    }
+
+    /**
+     * Creates a new TernaryNode instance.
+     *
+     * @param stamp the result type of this instruction
+     * @param x the first input instruction
+     * @param y the second input instruction
+     * @param z the second input instruction
+     */
+    protected TernaryNode(NodeClass<? extends TernaryNode> c, Stamp stamp, ValueNode x, ValueNode y, ValueNode z) {
+        super(c, stamp);
+        this.x = x;
+        this.y = y;
+        this.z = z;
+    }
+
+    @Override
+    public boolean inferStamp() {
+        return updateStamp(foldStamp(getX().stamp(NodeView.DEFAULT), getY().stamp(NodeView.DEFAULT), getZ().stamp(NodeView.DEFAULT)));
+    }
+
+    /**
+     * Compute an improved stamp for this node using the passed in stamps. The stamps must be
+     * compatible with the current values of {@link #x}, {@link #y} and {@link #z}. This code is
+     * used to provide the default implementation of {@link #inferStamp()} and may be used by
+     * external optimizations.
+     *
+     * @param stampX
+     * @param stampY
+     * @param stampZ
+     */
+    public abstract Stamp foldStamp(Stamp stampX, Stamp stampY, Stamp stampZ);
+}