Mercurial > hg > truffle
annotate graal/com.oracle.max.cri/src/com/oracle/max/cri/ci/CiValueUtil.java @ 4266:e2499e6d8aa7
Merge
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Wed, 11 Jan 2012 16:31:46 +0100 |
parents | 1cf920630944 |
children | 9ce8594bedaf |
rev | line source |
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1 /* |
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2 * Copyright (c) 2012, 2012, 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.oracle.max.cri.ci; |
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24 |
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25 public class CiValueUtil { |
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26 public static boolean isIllegal(CiValue value) { |
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27 assert value != null; |
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28 return value == CiValue.IllegalValue; |
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29 } |
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30 |
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31 public static boolean isLegal(CiValue value) { |
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32 return !isIllegal(value); |
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33 } |
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34 |
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35 public static boolean isVirtualObject(CiValue value) { |
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36 assert value != null; |
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37 return value instanceof CiVirtualObject; |
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38 } |
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39 |
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40 public static CiVirtualObject asVirtualObject(CiValue value) { |
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41 assert value != null; |
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42 return (CiVirtualObject) value; |
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43 } |
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44 |
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45 public static boolean isConstant(CiValue value) { |
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46 assert value != null; |
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47 return value instanceof CiConstant; |
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48 } |
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49 |
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50 public static CiConstant asConstant(CiValue value) { |
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51 assert value != null; |
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52 return (CiConstant) value; |
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53 } |
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54 |
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55 |
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56 public static boolean isStackSlot(CiValue value) { |
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57 assert value != null; |
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58 return value instanceof CiStackSlot; |
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59 } |
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60 |
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61 public static CiStackSlot asStackSlot(CiValue value) { |
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62 assert value != null; |
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63 return (CiStackSlot) value; |
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64 } |
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65 |
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66 |
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67 public static boolean isRegister(CiValue value) { |
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68 assert value != null; |
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69 return value instanceof CiRegisterValue; |
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70 } |
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71 |
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72 public static CiRegister asRegister(CiValue value) { |
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73 assert value != null; |
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74 return ((CiRegisterValue) value).reg; |
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75 } |
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76 |
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77 public static CiRegister asIntReg(CiValue value) { |
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78 assert value.kind == CiKind.Int || value.kind == CiKind.Jsr; |
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79 return asRegister(value); |
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80 } |
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81 |
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82 public static CiRegister asLongReg(CiValue value) { |
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83 assert value.kind == CiKind.Long : value.kind; |
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84 return asRegister(value); |
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85 } |
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86 |
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87 public static CiRegister asObjectReg(CiValue value) { |
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88 assert value.kind == CiKind.Object; |
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89 return asRegister(value); |
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90 } |
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91 |
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92 public static CiRegister asFloatReg(CiValue value) { |
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93 assert value.kind == CiKind.Float; |
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94 return asRegister(value); |
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95 } |
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96 |
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97 public static CiRegister asDoubleReg(CiValue value) { |
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98 assert value.kind == CiKind.Double; |
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99 return asRegister(value); |
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100 } |
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101 |
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102 |
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103 public static boolean sameRegister(CiValue...values) { |
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104 for (int i = 0; i < values.length; i++) { |
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105 for (int j = i + 1; j < values.length; j++) { |
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106 if (isRegister(values[i]) && isRegister(values[j]) && asRegister(values[i]) != asRegister(values[j])) { |
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107 return false; |
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108 } |
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109 } |
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110 } |
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111 return true; |
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112 } |
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113 |
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114 public static boolean differentRegisters(CiValue...values) { |
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115 for (int i = 0; i < values.length; i++) { |
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116 for (int j = i + 1; j < values.length; j++) { |
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117 if (isRegister(values[i]) && isRegister(values[j]) && asRegister(values[i]) == asRegister(values[j])) { |
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118 return false; |
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119 } |
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120 } |
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121 } |
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122 return true; |
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123 } |
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124 } |