Mercurial > hg > graal-jvmci-8
annotate graal/GraalCompiler/src/com/sun/c1x/ir/NewInstance.java @ 2537:4a016ff4d2df
Clean up on LIRGenerator and related.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 27 Apr 2011 19:53:46 +0200 |
parents | 16b9a8b5ad39 |
children | c58a301eb2d7 |
rev | line source |
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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 * Checks whether this instruction can trap. |
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65 * @return {@code true}, assuming that allocation can cause OutOfMemory or other exceptions |
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66 */ |
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67 @Override |
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68 public boolean canTrap() { |
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69 return true; |
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70 } |
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71 |
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72 /** |
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73 * Gets the exact type produced by this instruction. For allocations of instance classes, this is |
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74 * always the class allocated. |
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75 * @return the exact type produced by this instruction |
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76 */ |
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77 @Override |
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78 public RiType exactType() { |
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79 return instanceClass; |
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80 } |
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81 |
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82 @Override |
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83 public void accept(ValueVisitor v) { |
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84 v.visitNewInstance(this); |
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85 } |
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86 |
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87 @Override |
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88 public void print(LogStream out) { |
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89 out.print("new instance ").print(CiUtil.toJavaName(instanceClass())); |
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90 } |
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91 } |