Mercurial > hg > truffle
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/LogicConstantNode.java @ 18998:ec0733b5a90a
Allow final modifier on node subclasses and start adding the modifier to leaf classes.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Wed, 28 Jan 2015 02:34:14 +0100 |
parents | f57d86eb036f |
children | 7e2c87dae93e |
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/* * Copyright (c) 2009, 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 com.oracle.graal.nodes; import com.oracle.graal.graph.*; import com.oracle.graal.nodeinfo.*; import com.oracle.graal.nodes.spi.*; /** * The {@code LogicConstantNode} represents a boolean constant. */ @NodeInfo(nameTemplate = "{p#value}") public class LogicConstantNode extends LogicNode implements LIRLowerable { protected final boolean value; public LogicConstantNode(boolean value) { super(); this.value = value; } /** * Returns a node for a boolean constant. * * @param v the boolean value for which to create the instruction * @param graph * @return a node representing the boolean */ public static LogicConstantNode forBoolean(boolean v, Graph graph) { return graph.unique(new LogicConstantNode(v)); } /** * Returns a node for a boolean constant. * * @param v the boolean value for which to create the instruction * @return a node representing the boolean */ public static LogicConstantNode forBoolean(boolean v) { return new LogicConstantNode(v); } /** * Gets a constant for {@code true}. */ public static LogicConstantNode tautology(Graph graph) { return forBoolean(true, graph); } /** * Gets a constant for {@code false}. */ public static LogicConstantNode contradiction(Graph graph) { return forBoolean(false, graph); } /** * Gets a constant for {@code true}. */ public static LogicConstantNode tautology() { return forBoolean(true); } /** * Gets a constant for {@code false}. */ public static LogicConstantNode contradiction() { return forBoolean(false); } public boolean getValue() { return value; } @Override public void generate(NodeLIRBuilderTool generator) { // nothing to do } }