001/*
002 * Copyright (c) 2012, 2014, 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.replacements.nodes;
024
025import jdk.internal.jvmci.meta.*;
026
027import com.oracle.graal.compiler.common.type.*;
028import com.oracle.graal.graph.*;
029import com.oracle.graal.nodeinfo.*;
030import com.oracle.graal.nodes.*;
031import com.oracle.graal.nodes.extended.*;
032import com.oracle.graal.nodes.spi.*;
033
034/**
035 * A special purpose store node that differs from {@link UnsafeStoreNode} in that it is not a
036 * {@link StateSplit} and takes a computed address instead of an object.
037 */
038@NodeInfo
039public final class DirectStoreNode extends FixedWithNextNode implements LIRLowerable {
040
041    public static final NodeClass<DirectStoreNode> TYPE = NodeClass.create(DirectStoreNode.class);
042    @Input protected ValueNode address;
043    @Input protected ValueNode value;
044    protected final Kind kind;
045
046    public DirectStoreNode(ValueNode address, ValueNode value, Kind kind) {
047        super(TYPE, StampFactory.forVoid());
048        this.address = address;
049        this.value = value;
050        this.kind = kind;
051    }
052
053    @Override
054    public void generate(NodeLIRBuilderTool gen) {
055        Value v = gen.operand(value);
056        LIRKind lirKind = gen.getLIRGeneratorTool().target().getLIRKind(kind);
057        gen.getLIRGeneratorTool().emitStore(lirKind, gen.operand(address), v, null);
058    }
059
060    protected ValueNode getAddress() {
061        return address;
062    }
063
064    protected ValueNode getValue() {
065        return value;
066    }
067
068    @NodeIntrinsic
069    public static native void storeBoolean(long address, boolean value, @ConstantNodeParameter Kind kind);
070}