FloatingAccessNode.java revision 12651:6ef01bd40ce2 
1/*
2 * Copyright (c) 2011, 2016, 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.memory;
24
25import org.graalvm.compiler.core.common.LocationIdentity;
26import org.graalvm.compiler.core.common.type.Stamp;
27import org.graalvm.compiler.graph.NodeClass;
28import org.graalvm.compiler.nodeinfo.InputType;
29import org.graalvm.compiler.nodeinfo.NodeInfo;
30import org.graalvm.compiler.nodes.FloatingGuardedNode;
31import org.graalvm.compiler.nodes.extended.GuardingNode;
32import org.graalvm.compiler.nodes.memory.address.AddressNode;
33
34@NodeInfo
35public abstract class FloatingAccessNode extends FloatingGuardedNode implements Access, MemoryAccess {
36    public static final NodeClass<FloatingAccessNode> TYPE = NodeClass.create(FloatingAccessNode.class);
37
38    @Input(InputType.Association) AddressNode address;
39    protected final LocationIdentity location;
40
41    protected BarrierType barrierType;
42
43    protected FloatingAccessNode(NodeClass<? extends FloatingAccessNode> c, AddressNode address, LocationIdentity location, Stamp stamp) {
44        super(c, stamp);
45        this.address = address;
46        this.location = location;
47    }
48
49    protected FloatingAccessNode(NodeClass<? extends FloatingAccessNode> c, AddressNode address, LocationIdentity location, Stamp stamp, GuardingNode guard, BarrierType barrierType) {
50        super(c, stamp, guard);
51        this.address = address;
52        this.location = location;
53        this.barrierType = barrierType;
54    }
55
56    @Override
57    public AddressNode getAddress() {
58        return address;
59    }
60
61    @Override
62    public LocationIdentity getLocationIdentity() {
63        return location;
64    }
65
66    @Override
67    public BarrierType getBarrierType() {
68        return barrierType;
69    }
70
71    @Override
72    public boolean canNullCheck() {
73        return true;
74    }
75
76    public abstract FixedAccessNode asFixedNode();
77}
78