/* * Copyright (c) 2009, 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.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.ValueNode; /** * The {@code BinaryNode} class is the base of arithmetic and logic operations with two inputs. */ @NodeInfo public abstract class BinaryNode extends FloatingNode implements Canonicalizable.Binary<ValueNode> { public static final NodeClass<BinaryNode> TYPE = NodeClass.create(BinaryNode.class); @Input protected ValueNode x; @Input protected ValueNode y; @Override public ValueNode getX() { return x; } @Override public ValueNode getY() { return y; } public void setX(ValueNode x) { updateUsages(this.x, x); this.x = x; } public void setY(ValueNode y) { updateUsages(this.y, y); this.y = y; } /** * Creates a new BinaryNode instance. * * @param stamp the result type of this instruction * @param x the first input instruction * @param y the second input instruction */ protected BinaryNode(NodeClass<? extends BinaryNode> c, Stamp stamp, ValueNode x, ValueNode y) { super(c, stamp); this.x = x; this.y = y; } @Override public boolean inferStamp() { return updateStamp(foldStamp(getX().stamp(), getY().stamp())); } /** * Compute an improved for this node using the passed in stamps. The stamps must be compatible * with the current values of {@link #x} and {@link #y}. This code is used to provide the * default implementation of {@link #inferStamp()} and may be used by external optimizations. * * @param stampX * @param stampY */ public abstract Stamp foldStamp(Stamp stampX, Stamp stampY); }