1/*
2 * Copyright (c) 2015, 2015, 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 */
23
24package org.graalvm.compiler.core.sparc;
25
26import org.graalvm.compiler.core.common.LIRKind;
27import org.graalvm.compiler.graph.NodeClass;
28import org.graalvm.compiler.lir.sparc.SPARCIndexedAddressValue;
29import org.graalvm.compiler.nodeinfo.NodeInfo;
30import org.graalvm.compiler.nodes.ValueNode;
31import org.graalvm.compiler.nodes.memory.address.AddressNode;
32import org.graalvm.compiler.nodes.spi.LIRLowerable;
33import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool;
34
35import jdk.vm.ci.meta.AllocatableValue;
36
37/**
38 * Represents an address of the form [base + index].
39 */
40@NodeInfo
41public class SPARCIndexedAddressNode extends AddressNode implements LIRLowerable {
42
43    public static final NodeClass<SPARCIndexedAddressNode> TYPE = NodeClass.create(SPARCIndexedAddressNode.class);
44
45    @Input private ValueNode base;
46    @Input private ValueNode index;
47
48    public SPARCIndexedAddressNode(ValueNode base, ValueNode index) {
49        super(TYPE);
50        this.base = base;
51        this.index = index;
52    }
53
54    @Override
55    public void generate(NodeLIRBuilderTool gen) {
56        SPARCLIRGenerator tool = (SPARCLIRGenerator) gen.getLIRGeneratorTool();
57
58        AllocatableValue baseValue = tool.asAllocatable(gen.operand(base));
59        AllocatableValue indexValue = tool.asAllocatable(gen.operand(index));
60
61        AllocatableValue baseReference = LIRKind.derivedBaseFromValue(baseValue);
62        AllocatableValue indexReference = LIRKind.derivedBaseFromValue(indexValue);
63
64        LIRKind kind = LIRKind.combineDerived(tool.getLIRKind(stamp()), baseReference, indexReference);
65        gen.setResult(this, new SPARCIndexedAddressValue(kind, baseValue, indexValue));
66    }
67
68    @Override
69    public ValueNode getBase() {
70        return base;
71    }
72
73    public void setBase(ValueNode base) {
74        updateUsages(this.base, base);
75        this.base = base;
76    }
77
78    @Override
79    public ValueNode getIndex() {
80        return index;
81    }
82
83    public void setIndex(ValueNode index) {
84        updateUsages(this.index, index);
85        this.index = index;
86    }
87
88    @Override
89    public long getMaxConstantDisplacement() {
90        return Long.MAX_VALUE;
91    }
92}
93