SPARCImmediateAddressNode.java revision 12651:6ef01bd40ce2 
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.asm.sparc.SPARCAssembler;
27import org.graalvm.compiler.core.common.LIRKind;
28import org.graalvm.compiler.graph.NodeClass;
29import org.graalvm.compiler.lir.sparc.SPARCImmediateAddressValue;
30import org.graalvm.compiler.nodeinfo.NodeInfo;
31import org.graalvm.compiler.nodes.ValueNode;
32import org.graalvm.compiler.nodes.memory.address.AddressNode;
33import org.graalvm.compiler.nodes.spi.LIRLowerable;
34import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool;
35
36import jdk.vm.ci.meta.AllocatableValue;
37
38/**
39 * Represents an address of the form [base + simm13].
40 */
41@NodeInfo
42public class SPARCImmediateAddressNode extends AddressNode implements LIRLowerable {
43
44    public static final NodeClass<SPARCImmediateAddressNode> TYPE = NodeClass.create(SPARCImmediateAddressNode.class);
45
46    @Input private ValueNode base;
47    private int displacement;
48
49    public SPARCImmediateAddressNode(ValueNode base, int displacement) {
50        super(TYPE);
51        assert SPARCAssembler.isSimm13(displacement);
52        this.base = base;
53        this.displacement = displacement;
54    }
55
56    @Override
57    public void generate(NodeLIRBuilderTool gen) {
58        SPARCLIRGenerator tool = (SPARCLIRGenerator) gen.getLIRGeneratorTool();
59
60        AllocatableValue baseValue = tool.asAllocatable(gen.operand(base));
61
62        LIRKind kind = tool.getLIRKind(stamp());
63        AllocatableValue baseReference = LIRKind.derivedBaseFromValue(baseValue);
64        if (baseReference != null) {
65            kind = kind.makeDerivedReference(baseReference);
66        }
67
68        gen.setResult(this, new SPARCImmediateAddressValue(kind, baseValue, displacement));
69    }
70}
71