001/*
002 * Copyright (c) 2011, 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.nodes.memory;
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.memory.address.*;
033
034@NodeInfo
035public abstract class FloatingAccessNode extends FloatingGuardedNode implements Access, MemoryAccess {
036    public static final NodeClass<FloatingAccessNode> TYPE = NodeClass.create(FloatingAccessNode.class);
037
038    @Input(InputType.Association) AddressNode address;
039    protected final LocationIdentity location;
040
041    protected BarrierType barrierType;
042
043    protected FloatingAccessNode(NodeClass<? extends FloatingAccessNode> c, AddressNode address, LocationIdentity location, Stamp stamp) {
044        super(c, stamp);
045        this.address = address;
046        this.location = location;
047    }
048
049    protected FloatingAccessNode(NodeClass<? extends FloatingAccessNode> c, AddressNode address, LocationIdentity location, Stamp stamp, GuardingNode guard, BarrierType barrierType) {
050        super(c, stamp, guard);
051        this.address = address;
052        this.location = location;
053        this.barrierType = barrierType;
054    }
055
056    @Override
057    public AddressNode getAddress() {
058        return address;
059    }
060
061    @Override
062    public LocationIdentity getLocationIdentity() {
063        return location;
064    }
065
066    @Override
067    public BarrierType getBarrierType() {
068        return barrierType;
069    }
070
071    @Override
072    public boolean canNullCheck() {
073        return true;
074    }
075
076    public abstract FixedAccessNode asFixedNode();
077}