Mercurial > hg > graal-compiler
annotate c1x4hotspotsrc/HotSpotVM/src/com/sun/hotspot/c1x/HotSpotRegisterConfig.java @ 1448:9196a2b32950
Modified C++ to reflect changes in calling convention CRI code.
author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 09 Nov 2010 17:40:15 +0100 |
parents | 4d1d3bd140f9 |
children | 43a93774d24f |
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1 /* |
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2 * Copyright (c) 2010 Sun Microsystems, Inc. All rights reserved. |
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3 * |
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4 * Sun Microsystems, Inc. has intellectual property rights relating to technology embodied in the product |
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5 * that is described in this document. In particular, and without limitation, these intellectual property |
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6 * rights may include one or more of the U.S. patents listed at http://www.sun.com/patents and one or |
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7 * more additional patents or pending patent applications in the U.S. and in other countries. |
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8 * |
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9 * U.S. Government Rights - Commercial software. Government users are subject to the Sun |
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10 * Microsystems, Inc. standard license agreement and applicable provisions of the FAR and its |
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11 * supplements. |
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12 * |
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13 * Use is subject to license terms. Sun, Sun Microsystems, the Sun logo, Java and Solaris are trademarks or |
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14 * registered trademarks of Sun Microsystems, Inc. in the U.S. and other countries. All SPARC trademarks |
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15 * are used under license and are trademarks or registered trademarks of SPARC International, Inc. in the |
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16 * U.S. and other countries. |
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17 * |
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18 * UNIX is a registered trademark in the U.S. and other countries, exclusively licensed through X/Open |
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19 * Company, Ltd. |
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20 */ |
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21 package com.sun.hotspot.c1x; |
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22 |
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23 import static com.sun.c1x.target.amd64.AMD64.*; |
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24 |
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25 import java.util.*; |
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26 |
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27 import com.sun.c1x.target.amd64.*; |
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28 import com.sun.c1x.util.*; |
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29 import com.sun.cri.ci.*; |
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30 import com.sun.cri.ci.CiCallingConvention.Type; |
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31 import com.sun.cri.ci.CiRegister.RegisterFlag; |
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32 import com.sun.cri.ri.*; |
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33 |
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34 /** |
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35 * @author Thomas Wuerthinger |
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36 * |
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37 */ |
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38 public class HotSpotRegisterConfig implements RiRegisterConfig { |
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39 |
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40 // be careful - the contents of this array are duplicated in c1x_CodeInstaller.cpp |
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41 private final CiRegister[] allocatable = { |
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42 rax, rbx, rcx, rdx, rsi, rdi, r8, r9, /* r10, */r11, r12, r13, r14, |
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43 xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, |
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44 xmm8, xmm9, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15 |
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45 }; |
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46 |
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47 private final EnumMap<RegisterFlag, CiRegister[]> categorized = CiRegister.categorize(allocatable); |
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48 |
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49 private final RiRegisterAttributes[] attributesMap; |
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50 |
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51 @Override |
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52 public CiRegister[] getAllocatableRegisters() { |
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53 return allocatable; |
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54 } |
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55 |
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56 @Override |
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57 public EnumMap<RegisterFlag, CiRegister[]> getCategorizedAllocatableRegisters() { |
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58 return categorized; |
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59 } |
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60 |
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61 @Override |
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62 public RiRegisterAttributes[] getAttributesMap() { |
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63 return attributesMap; |
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64 } |
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65 |
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66 private final CiRegister[] generalParameterRegisters; |
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67 private final CiRegister[] xmmParameterRegisters = {xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7}; |
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68 private final CiRegister[] allParameterRegisters; |
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69 |
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70 public HotSpotRegisterConfig(HotSpotVMConfig config) { |
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71 if (config.windowsOs) { |
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72 generalParameterRegisters = new CiRegister[] {rdx, r8, r9, rdi, rsi, rcx}; |
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73 } else { |
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74 generalParameterRegisters = new CiRegister[] {rsi, rdx, rcx, r8, r9, rdi}; |
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75 } |
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76 attributesMap = RiRegisterAttributes.createMap(this, AMD64.allRegisters); |
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77 allParameterRegisters = Arrays.copyOf(generalParameterRegisters, generalParameterRegisters.length + xmmParameterRegisters.length); |
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78 System.arraycopy(xmmParameterRegisters, 0, allParameterRegisters, generalParameterRegisters.length, xmmParameterRegisters.length); |
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79 } |
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80 |
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81 @Override |
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82 public CiRegister[] getCallerSaveRegisters() { |
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83 return getAllocatableRegisters(); |
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84 } |
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85 |
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86 private final CiRegister[] none = {}; |
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87 |
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88 @Override |
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89 public CiRegister[] getCalleeSaveRegisters() { |
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90 return none; |
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91 } |
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92 |
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93 @Override |
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94 public CiRegister getRegister(int index) { |
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95 throw new UnsupportedOperationException(); |
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96 } |
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97 |
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98 @Override |
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99 public CiCallingConvention getCallingConvention(Type type, CiKind[] parameters, CiTarget target) { |
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100 if (type == Type.NativeCall) { |
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101 throw new UnsupportedOperationException(); |
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102 } |
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103 return callingConvention(parameters, type, target); |
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104 } |
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105 |
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106 public CiRegister[] getCallingConventionRegisters(Type type) { |
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107 return allParameterRegisters; |
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108 } |
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109 |
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110 private CiCallingConvention callingConvention(CiKind[] types, Type type, CiTarget target) { |
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111 CiValue[] locations = new CiValue[types.length]; |
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112 |
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113 int currentGeneral = 0; |
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114 int currentXMM = 0; |
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115 int currentStackIndex = 0; |
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116 |
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117 for (int i = 0; i < types.length; i++) { |
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118 final CiKind kind = types[i]; |
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119 |
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120 switch (kind) { |
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121 case Byte: |
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122 case Boolean: |
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123 case Short: |
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124 case Char: |
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125 case Int: |
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126 case Long: |
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127 case Word: |
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128 case Object: |
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129 if (currentGeneral < generalParameterRegisters.length) { |
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130 CiRegister register = generalParameterRegisters[currentGeneral++]; |
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131 locations[i] = register.asValue(kind); |
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132 } |
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133 break; |
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134 case Float: |
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135 case Double: |
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136 if (currentXMM < xmmParameterRegisters.length) { |
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137 CiRegister register = xmmParameterRegisters[currentXMM++]; |
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138 locations[i] = register.asValue(kind); |
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139 } |
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140 break; |
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141 default: |
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142 throw Util.shouldNotReachHere(); |
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143 } |
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144 |
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145 if (locations[i] == null) { |
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146 // we need to adjust for the frame pointer stored on the stack, which shifts incoming arguments by one slot |
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147 locations[i] = CiStackSlot.get(kind.stackKind(), currentStackIndex + (type.out ? 0 : 1), !type.out); |
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148 currentStackIndex += target.spillSlots(kind); |
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149 } |
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150 } |
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151 |
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152 return new CiCallingConvention(locations, currentStackIndex * target.spillSlotSize); |
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153 } |
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154 |
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155 @Override |
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156 public CiRegister getReturnRegister(CiKind kind) { |
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157 switch (kind) { |
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158 case Boolean: |
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159 case Byte: |
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160 case Char: |
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|
161 case Short: |
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162 case Int: |
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163 case Long: |
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164 case Object: |
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165 case Word: |
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166 return rax; |
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167 case Float: |
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168 case Double: |
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169 return xmm0; |
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170 case Void: |
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171 case Illegal: |
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172 return null; |
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173 default: |
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174 throw new UnsupportedOperationException("no return register for type " + kind); |
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175 } |
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176 } |
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177 |
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178 @Override |
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179 public CiRegister getScratchRegister() { |
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180 return r10; |
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181 } |
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182 |
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183 @Override |
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184 public CiRegister getFrameRegister() { |
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185 return rsp; |
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186 } |
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187 |
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188 @Override |
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189 public String toString() { |
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190 String res = String.format( |
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191 "Allocatable: " + Arrays.toString(getAllocatableRegisters()) + "%n" + |
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192 "CallerSave: " + Arrays.toString(getCallerSaveRegisters()) + "%n" + |
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193 "CalleeSave: " + Arrays.toString(getCalleeSaveRegisters()) + "%n" + |
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194 "Scratch: " + getScratchRegister() + "%n"); |
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Doug Simon <doug.simon@oracle.com>
parents:
1437
diff
changeset
|
195 return res; |
1420
44efca8a02d6
reformatting similar to other maxine projects (tabs, etc.)
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1419
diff
changeset
|
196 } |
1416
1b41af477605
Added HotSpotVM project Java source files.
Thomas Wuerthinger <thomas.wuerthinger@gmail.com>
parents:
diff
changeset
|
197 } |