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comparison graal/GraalCompiler/src/com/sun/c1x/ir/AccessArray.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/AccessArray.java@9ec15d6914ca
children 0f9eeb15e636
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.value.*;
26 import com.sun.cri.ci.*;
27
28 /**
29 * This the base class of all array operations.
30 *
31 * @author Ben L. Titzer
32 */
33 public abstract class AccessArray extends StateSplit {
34
35 protected Value array;
36
37 /**
38 * Creates a new AccessArray instruction.
39 * @param kind the type of the result of this instruction
40 * @param array the instruction that produces the array object value
41 * @param stateBefore the frame state before the instruction
42 */
43 public AccessArray(CiKind kind, Value array, FrameState stateBefore) {
44 super(kind, stateBefore);
45 this.array = array;
46 if (array.isNonNull()) {
47 eliminateNullCheck();
48 }
49 }
50
51 /**
52 * Gets the instruction that produces the array object.
53 * @return the instruction that produces the array object
54 */
55 public Value array() {
56 return array;
57 }
58
59 /**
60 * Clears the state if this instruction can (no longer) trap.
61 */
62 @Override
63 public void runtimeCheckCleared() {
64 if (!canTrap()) {
65 clearState();
66 }
67 }
68
69 @Override
70 public void inputValuesDo(ValueClosure closure) {
71 array = closure.apply(array);
72 }
73 }