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annotate graal/GraalCompiler/src/com/sun/c1x/ir/UnsafeGetRaw.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/UnsafeGetRaw.java@9ec15d6914ca
children
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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.cri.ci.*;
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27
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28 /**
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29 * The {@code UnsafeGetRaw} instruction represents an unsafe access of raw memory where
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30 * the type is not an object reference.
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31 *
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32 * @author Ben L. Titzer
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33 */
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34 public final class UnsafeGetRaw extends UnsafeRawOp {
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35
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36 final boolean mayBeUnaligned;
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37
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38 /**
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39 * Constructs a new UnsafeGetRaw instruction.
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40 * @param opKind the kind of the operation
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41 * @param addr the instruction generating the base address
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42 * @param mayBeUnaligned {@code true} if this operation may be unaligned
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43 */
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44 public UnsafeGetRaw(CiKind opKind, Value addr, boolean mayBeUnaligned) {
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45 super(opKind, addr, false);
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46 this.mayBeUnaligned = mayBeUnaligned;
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47 }
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48
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49 /**
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50 * Constructs a new UnsafeGetRaw instruction.
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51 * @param opKind the kind of the operation
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52 * @param addr the instruction generating the base address
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53 * @param index the instruction generating the index
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54 * @param log2scale the log base 2 of the scaling factor
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55 * @param mayBeUnaligned {@code true} if this operation may be unaligned
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56 */
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57 public UnsafeGetRaw(CiKind opKind, Value addr, Value index, int log2scale, boolean mayBeUnaligned) {
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58 super(opKind, addr, index, log2scale, false);
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59 this.mayBeUnaligned = mayBeUnaligned;
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60 }
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61
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62 /**
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63 * Checks whether this operation may be unaligned.
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64 * @return {@code true} if this operation may be unaligned
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65 */
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66 public boolean mayBeUnaligned() {
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67 return mayBeUnaligned;
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68 }
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69
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70 @Override
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71 public void accept(ValueVisitor v) {
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72 v.visitUnsafeGetRaw(this);
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73 }
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74
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75 @Override
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76 public void print(LogStream out) {
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77 out.print("UnsafeGetRaw.(base ").print(base());
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78 if (hasIndex()) {
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79 out.print(", index ").print(index()).print(", log2_scale ").print(log2Scale());
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80 }
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81 out.print(')');
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82 }
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83 }