UnaryOpLogicNode.java revision 12657:6ef01bd40ce2 
1/*
2 * Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23package org.graalvm.compiler.nodes;
24
25import org.graalvm.compiler.core.common.type.Stamp;
26import org.graalvm.compiler.graph.NodeClass;
27import org.graalvm.compiler.graph.spi.Canonicalizable;
28import org.graalvm.compiler.nodeinfo.NodeInfo;
29import org.graalvm.compiler.nodes.spi.LIRLowerable;
30import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool;
31
32import jdk.vm.ci.meta.TriState;
33
34@NodeInfo
35public abstract class UnaryOpLogicNode extends LogicNode implements LIRLowerable, Canonicalizable.Unary<ValueNode> {
36
37    public static final NodeClass<UnaryOpLogicNode> TYPE = NodeClass.create(UnaryOpLogicNode.class);
38    @Input protected ValueNode value;
39
40    @Override
41    public ValueNode getValue() {
42        return value;
43    }
44
45    public UnaryOpLogicNode(NodeClass<? extends UnaryOpLogicNode> c, ValueNode value) {
46        super(c);
47        assert value != null;
48        this.value = value;
49    }
50
51    @Override
52    public void generate(NodeLIRBuilderTool gen) {
53    }
54
55    public abstract Stamp getSucceedingStampForValue(boolean negated);
56
57    public abstract TriState tryFold(Stamp valueStamp);
58}
59