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comparison graal/GraalCompiler/src/com/sun/c1x/ir/NewArray.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/NewArray.java@9ec15d6914ca
children 4a016ff4d2df
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 * The {@code NewArray} class is the base of all instructions that allocate arrays.
30 *
31 * @author Ben L. Titzer
32 */
33 public abstract class NewArray extends StateSplit {
34
35 Value length;
36
37 /**
38 * Constructs a new NewArray instruction.
39 * @param length the instruction that produces the length for this allocation
40 * @param stateBefore the state before the allocation
41 */
42 NewArray(Value length, FrameState stateBefore) {
43 super(CiKind.Object, stateBefore);
44 this.length = length;
45 setFlag(Flag.NonNull);
46 setFlag(Flag.ResultIsUnique);
47 }
48
49 /**
50 * Gets the instruction that produces the length of this array.
51 * @return the instruction that produces the length
52 */
53 public Value length() {
54 return length;
55 }
56
57 /**
58 * Checks whether this instruction can trap.
59 * @return <code>true</code>, conservatively assuming that this instruction can throw such
60 * exceptions as {@code OutOfMemoryError}
61 */
62 @Override
63 public boolean canTrap() {
64 return true;
65 }
66
67 /**
68 * Applies the specified closure to all input values of this instruction.
69 * @param closure the closure to apply
70 */
71 @Override
72 public void inputValuesDo(ValueClosure closure) {
73 length = closure.apply(length);
74 }
75 }