Mercurial > hg > truffle
annotate graal/GraalCompiler/src/com/sun/c1x/ir/InstanceOf.java @ 2634:4dd0573f510b
FrameState fixes.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 11 May 2011 10:52:37 +0200 |
parents | 91d3952f7eb7 |
children | c3f64b66fc78 |
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1 /* |
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2 * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 package com.sun.c1x.ir; |
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24 |
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25 import com.oracle.graal.graph.*; |
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26 import com.sun.c1x.debug.*; |
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27 import com.sun.c1x.util.*; |
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28 import com.sun.cri.bytecode.*; |
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29 import com.sun.cri.ci.*; |
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30 import com.sun.cri.ri.*; |
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31 |
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32 /** |
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33 * The {@code InstanceOf} instruction represents an instanceof test. |
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34 */ |
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35 public final class InstanceOf extends TypeCheck { |
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36 |
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37 private static final int INPUT_COUNT = 0; |
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38 private static final int SUCCESSOR_COUNT = 0; |
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39 |
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40 /** |
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41 * Constructs a new InstanceOf instruction. |
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42 * @param targetClass the target class of the instanceof check |
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43 * @param object the instruction producing the object input to this instruction |
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44 * @param stateBefore the state before this instruction |
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45 * @param graph |
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46 */ |
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47 public InstanceOf(RiType targetClass, Value targetClassInstruction, Value object, Graph graph) { |
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48 super(targetClass, targetClassInstruction, object, CiKind.Int, INPUT_COUNT, SUCCESSOR_COUNT, graph); |
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49 } |
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50 |
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51 @Override |
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52 public void accept(ValueVisitor v) { |
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53 v.visitInstanceOf(this); |
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54 } |
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55 |
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56 @Override |
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57 public int valueNumber() { |
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58 return Util.hash1(Bytecodes.INSTANCEOF, object()); |
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59 } |
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60 |
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61 @Override |
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62 public boolean valueEqual(Instruction i) { |
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63 if (i instanceof InstanceOf) { |
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64 InstanceOf o = (InstanceOf) i; |
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65 return targetClass == o.targetClass && object() == o.object(); |
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66 } |
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67 return false; |
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68 } |
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69 |
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70 @Override |
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71 public void print(LogStream out) { |
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72 out.print("instanceof(").print(object()).print(") ").print(CiUtil.toJavaName(targetClass())); |
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73 } |
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74 } |