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comparison graal/GraalCompiler/src/com/sun/c1x/ir/NewInstance.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/NewInstance.java@9ec15d6914ca
children 4a016ff4d2df
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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 NewInstance} instruction represents the allocation of an instance class object.
32 *
33 * @author Ben L. Titzer
34 */
35 public final class NewInstance extends StateSplit {
36
37 final RiType instanceClass;
38 public final int cpi;
39 public final RiConstantPool constantPool;
40
41 /**
42 * Constructs a NewInstance instruction.
43 * @param type the class being allocated
44 * @param cpi the constant pool index
45 * @param stateBefore the state before executing this instruction
46 */
47 public NewInstance(RiType type, int cpi, RiConstantPool constantPool, FrameState stateBefore) {
48 super(CiKind.Object, stateBefore);
49 this.instanceClass = type;
50 this.cpi = cpi;
51 this.constantPool = constantPool;
52 setFlag(Flag.NonNull);
53 setFlag(Flag.ResultIsUnique);
54 }
55
56 /**
57 * Gets the instance class being allocated by this instruction.
58 * @return the instance class allocated
59 */
60 public RiType instanceClass() {
61 return instanceClass;
62 }
63
64 /**
65 * Checks whether this instruction can trap.
66 * @return {@code true}, assuming that allocation can cause OutOfMemory or other exceptions
67 */
68 @Override
69 public boolean canTrap() {
70 return true;
71 }
72
73 /**
74 * Gets the exact type produced by this instruction. For allocations of instance classes, this is
75 * always the class allocated.
76 * @return the exact type produced by this instruction
77 */
78 @Override
79 public RiType exactType() {
80 return instanceClass;
81 }
82
83 @Override
84 public void accept(ValueVisitor v) {
85 v.visitNewInstance(this);
86 }
87
88 @Override
89 public void print(LogStream out) {
90 out.print("new instance ").print(CiUtil.toJavaName(instanceClass()));
91 }
92 }