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comparison graal/GraalCompiler/src/com/sun/c1x/ir/LoadIndexed.java @ 2509:16b9a8b5ad39

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Renamings Runtime=>GraalRuntime and Compiler=>GraalCompiler
author Thomas Wuerthinger <thomas@wuerthinger.net>
date Wed, 27 Apr 2011 11:50:44 +0200
parents graal/Compiler/src/com/sun/c1x/ir/LoadIndexed.java@9ec15d6914ca
children fec99fc30af1
comparison
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2508:fea94949e0a2 2509:16b9a8b5ad39
1 /*
2 * Copyright (c) 2009, 2011, 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 package com.sun.c1x.ir;
24
25 import com.sun.c1x.debug.*;
26 import com.sun.c1x.value.*;
27 import com.sun.cri.ci.*;
28 import com.sun.cri.ri.*;
29
30 /**
31 * The {@code LoadIndexed} instruction represents a read from an element of an array.
32 *
33 * @author Ben L. Titzer
34 */
35 public final class LoadIndexed extends AccessIndexed {
36
37 /**
38 * Creates a new LoadIndexed instruction.
39 * @param array the instruction producing the array
40 * @param index the instruction producing the index
41 * @param length the instruction producing the length
42 * @param elementType the element type
43 * @param stateBefore the state before executing this instruction
44 */
45 public LoadIndexed(Value array, Value index, Value length, CiKind elementType, FrameState stateBefore) {
46 super(elementType.stackKind(), array, index, length, elementType, stateBefore);
47 }
48
49 /**
50 * Gets the declared type of this instruction's result.
51 * @return the declared type
52 */
53 @Override
54 public RiType declaredType() {
55 RiType arrayType = array().declaredType();
56 if (arrayType == null) {
57 return null;
58 }
59 return arrayType.componentType();
60 }
61
62 /**
63 * Gets the exact type of this instruction's result.
64 * @return the exact type
65 */
66 @Override
67 public RiType exactType() {
68 RiType declared = declaredType();
69 return declared != null && declared.isResolved() ? declared.exactType() : null;
70 }
71
72 @Override
73 public void accept(ValueVisitor v) {
74 v.visitLoadIndexed(this);
75 }
76
77 @Override
78 public void print(LogStream out) {
79 out.print(array()).print('[').print(index()).print("] (").print(kind.typeChar).print(')');
80 }
81 }