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annotate graal/GraalCompiler/src/com/sun/c1x/ir/NewInstance.java @ 2543:c58a301eb2d7

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Clean up on canTrap.
author Thomas Wuerthinger <thomas@wuerthinger.net>
date Wed, 27 Apr 2011 21:22:10 +0200
parents 4a016ff4d2df
children f1bc67c2d453
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2507
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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.sun.c1x.debug.*;
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26 import com.sun.c1x.value.*;
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27 import com.sun.cri.ci.*;
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28 import com.sun.cri.ri.*;
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29
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30 /**
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31 * The {@code NewInstance} instruction represents the allocation of an instance class object.
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32 *
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33 * @author Ben L. Titzer
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34 */
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35 public final class NewInstance extends StateSplit {
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36
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37 final RiType instanceClass;
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38 public final int cpi;
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39 public final RiConstantPool constantPool;
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40
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41 /**
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42 * Constructs a NewInstance instruction.
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43 * @param type the class being allocated
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44 * @param cpi the constant pool index
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45 * @param stateBefore the state before executing this instruction
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46 */
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47 public NewInstance(RiType type, int cpi, RiConstantPool constantPool, FrameState stateBefore) {
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48 super(CiKind.Object, stateBefore);
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49 this.instanceClass = type;
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50 this.cpi = cpi;
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51 this.constantPool = constantPool;
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52 setFlag(Flag.NonNull);
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53 }
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54
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55 /**
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56 * Gets the instance class being allocated by this instruction.
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57 * @return the instance class allocated
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58 */
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59 public RiType instanceClass() {
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60 return instanceClass;
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61 }
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62
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63 /**
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64 * Gets the exact type produced by this instruction. For allocations of instance classes, this is
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65 * always the class allocated.
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66 * @return the exact type produced by this instruction
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67 */
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68 @Override
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69 public RiType exactType() {
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70 return instanceClass;
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71 }
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72
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73 @Override
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74 public void accept(ValueVisitor v) {
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75 v.visitNewInstance(this);
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76 }
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77
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78 @Override
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79 public void print(LogStream out) {
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80 out.print("new instance ").print(CiUtil.toJavaName(instanceClass()));
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81 }
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82 }