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comparison graal/GraalCompiler/src/com/sun/c1x/ir/StackAllocate.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/StackAllocate.java@9ec15d6914ca
children
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2508:fea94949e0a2 2509:16b9a8b5ad39
1 /*
2 * Copyright (c) 2010, 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.cri.bytecode.*;
27 import com.sun.cri.ci.*;
28
29 /**
30 * Instruction implementing the semantics of {@link Bytecodes#ALLOCA}.
31 *
32 * @author Doug Simon
33 */
34 public final class StackAllocate extends Instruction {
35
36 private Value size;
37
38 /**
39 * Creates a new StackAllocate instance.
40 */
41 public StackAllocate(Value size) {
42 super(CiKind.Word);
43 this.size = size;
44 setFlag(Flag.NonNull);
45 eliminateNullCheck();
46 }
47
48 @Override
49 public void accept(ValueVisitor v) {
50 v.visitStackAllocate(this);
51 }
52
53 @Override
54 public void inputValuesDo(ValueClosure closure) {
55 size = closure.apply(size);
56 }
57
58 /**
59 * Gets the instruction that produced the size argument.
60 */
61 public Value size() {
62 return size;
63 }
64
65 @Override
66 public void print(LogStream out) {
67 out.print("alloca(").print(size).print(")");
68 }
69 }