001/*
002 * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation.
008 *
009 * This code is distributed in the hope that it will be useful, but WITHOUT
010 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
011 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
012 * version 2 for more details (a copy is included in the LICENSE file that
013 * accompanied this code).
014 *
015 * You should have received a copy of the GNU General Public License version
016 * 2 along with this work; if not, write to the Free Software Foundation,
017 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
018 *
019 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
020 * or visit www.oracle.com if you need additional information or have any
021 * questions.
022 */
023package com.oracle.graal.truffle.nodes;
024
025import jdk.internal.jvmci.meta.*;
026
027import com.oracle.graal.compiler.common.type.*;
028import com.oracle.graal.graph.*;
029import com.oracle.graal.graph.spi.*;
030import com.oracle.graal.nodeinfo.*;
031import com.oracle.graal.nodes.*;
032import com.oracle.graal.nodes.calc.*;
033import com.oracle.graal.nodes.extended.*;
034import com.oracle.graal.nodes.spi.*;
035
036@NodeInfo
037public final class IsCompilationConstantNode extends FloatingNode implements Lowerable, Canonicalizable {
038
039    public static final NodeClass<IsCompilationConstantNode> TYPE = NodeClass.create(IsCompilationConstantNode.class);
040
041    @Input ValueNode value;
042
043    public IsCompilationConstantNode(ValueNode value) {
044        super(TYPE, StampFactory.forKind(Kind.Boolean));
045        this.value = value;
046    }
047
048    @Override
049    public void lower(LoweringTool tool) {
050        graph().replaceFloating(this, ConstantNode.forBoolean(false, graph()));
051    }
052
053    @Override
054    public Node canonical(CanonicalizerTool tool) {
055        ValueNode arg0 = value;
056        if (arg0 instanceof BoxNode) {
057            arg0 = ((BoxNode) arg0).getValue();
058        }
059        if (arg0.isConstant()) {
060            return ConstantNode.forBoolean(true);
061        }
062        return this;
063    }
064
065    @NodeIntrinsic
066    public static native boolean check(Object value);
067}