Mercurial > hg > graal-compiler
annotate graal/GraalCompiler/src/com/sun/c1x/ir/AccessArray.java @ 2522:58c05e4c51e2
Removing two more HIR instructions.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 27 Apr 2011 16:43:31 +0200 |
parents | 16b9a8b5ad39 |
children | 0f9eeb15e636 |
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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.value.*; |
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26 import com.sun.cri.ci.*; |
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27 |
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28 /** |
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29 * This the base class of all array operations. |
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30 * |
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31 * @author Ben L. Titzer |
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32 */ |
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33 public abstract class AccessArray extends StateSplit { |
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34 |
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35 protected Value array; |
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36 |
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37 /** |
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38 * Creates a new AccessArray instruction. |
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39 * @param kind the type of the result of this instruction |
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40 * @param array the instruction that produces the array object value |
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41 * @param stateBefore the frame state before the instruction |
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42 */ |
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43 public AccessArray(CiKind kind, Value array, FrameState stateBefore) { |
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44 super(kind, stateBefore); |
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45 this.array = array; |
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46 if (array.isNonNull()) { |
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47 eliminateNullCheck(); |
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48 } |
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49 } |
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50 |
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51 /** |
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52 * Gets the instruction that produces the array object. |
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53 * @return the instruction that produces the array object |
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54 */ |
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55 public Value array() { |
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56 return array; |
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57 } |
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58 |
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59 /** |
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60 * Clears the state if this instruction can (no longer) trap. |
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61 */ |
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62 @Override |
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63 public void runtimeCheckCleared() { |
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64 if (!canTrap()) { |
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65 clearState(); |
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66 } |
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67 } |
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68 |
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69 @Override |
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70 public void inputValuesDo(ValueClosure closure) { |
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71 array = closure.apply(array); |
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72 } |
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73 } |