Mercurial > hg > graal-compiler
comparison graal/GraalCompiler/src/com/sun/c1x/ir/NewArray.java @ 2509:16b9a8b5ad39
Renamings Runtime=>GraalRuntime and Compiler=>GraalCompiler
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 27 Apr 2011 11:50:44 +0200 |
parents | graal/Compiler/src/com/sun/c1x/ir/NewArray.java@9ec15d6914ca |
children | 4a016ff4d2df |
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2508:fea94949e0a2 | 2509:16b9a8b5ad39 |
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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 } |