DirectStoreNode.java revision 12968:4d8a004e5c6d 
1/*
2 * Copyright (c) 2012, 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 */
23package org.graalvm.compiler.replacements.nodes;
24
25import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_3;
26import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_1;
27
28import org.graalvm.compiler.core.common.LIRKind;
29import org.graalvm.compiler.core.common.type.StampFactory;
30import org.graalvm.compiler.graph.NodeClass;
31import org.graalvm.compiler.nodeinfo.NodeInfo;
32import org.graalvm.compiler.nodes.FixedWithNextNode;
33import org.graalvm.compiler.nodes.StateSplit;
34import org.graalvm.compiler.nodes.ValueNode;
35import org.graalvm.compiler.nodes.extended.RawStoreNode;
36import org.graalvm.compiler.nodes.spi.LIRLowerable;
37import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool;
38
39import jdk.vm.ci.meta.JavaKind;
40import jdk.vm.ci.meta.Value;
41
42/**
43 * A special purpose store node that differs from {@link RawStoreNode} in that it is not a
44 * {@link StateSplit} and takes a computed address instead of an object.
45 */
46@NodeInfo(cycles = CYCLES_3, size = SIZE_1)
47public final class DirectStoreNode extends FixedWithNextNode implements LIRLowerable {
48
49    public static final NodeClass<DirectStoreNode> TYPE = NodeClass.create(DirectStoreNode.class);
50    @Input protected ValueNode address;
51    @Input protected ValueNode value;
52    protected final JavaKind kind;
53
54    public DirectStoreNode(ValueNode address, ValueNode value, JavaKind kind) {
55        super(TYPE, StampFactory.forVoid());
56        this.address = address;
57        this.value = value;
58        this.kind = kind;
59    }
60
61    @Override
62    public void generate(NodeLIRBuilderTool gen) {
63        Value v = gen.operand(value);
64        LIRKind lirKind = LIRKind.fromJavaKind(gen.getLIRGeneratorTool().target().arch, kind);
65        gen.getLIRGeneratorTool().getArithmetic().emitStore(lirKind, gen.operand(address), v, null);
66    }
67
68    public ValueNode getAddress() {
69        return address;
70    }
71
72    public ValueNode getValue() {
73        return value;
74    }
75
76    @NodeIntrinsic
77    public static native void storeBoolean(long address, boolean value, @ConstantNodeParameter JavaKind kind);
78}
79