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comparison graal/GraalCompiler/src/com/sun/c1x/ir/InstanceOf.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/InstanceOf.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.debug.*;
26 import com.sun.c1x.util.*;
27 import com.sun.c1x.value.*;
28 import com.sun.cri.bytecode.*;
29 import com.sun.cri.ci.*;
30 import com.sun.cri.ri.*;
31
32 /**
33 * The {@code InstanceOf} instruction represents an instanceof test.
34 *
35 * @author Ben L. Titzer
36 */
37 public final class InstanceOf extends TypeCheck {
38
39 /**
40 * Constructs a new InstanceOf instruction.
41 * @param targetClass the target class of the instanceof check
42 * @param object the instruction producing the object input to this instruction
43 * @param stateBefore the state before this instruction
44 */
45 public InstanceOf(RiType targetClass, Value targetClassInstruction, Value object, FrameState stateBefore) {
46 super(targetClass, targetClassInstruction, object, CiKind.Int, stateBefore);
47 if (object.isNonNull()) {
48 eliminateNullCheck();
49 }
50 }
51
52 @Override
53 public void accept(ValueVisitor v) {
54 v.visitInstanceOf(this);
55 }
56
57 @Override
58 public int valueNumber() {
59 return Util.hash1(Bytecodes.INSTANCEOF, object);
60 }
61
62 @Override
63 public boolean valueEqual(Instruction i) {
64 if (i instanceof InstanceOf) {
65 InstanceOf o = (InstanceOf) i;
66 return targetClass == o.targetClass && object == o.object;
67 }
68 return false;
69 }
70
71 @Override
72 public void print(LogStream out) {
73 out.print("instanceof(").print(object()).print(") ").print(CiUtil.toJavaName(targetClass()));
74 }
75 }