Mercurial > hg > graal-jvmci-8

annotate graal/com.oracle.max.graal.hotspot/src/com/oracle/max/graal/hotspot/HotSpotRegisterConfig.java @ 3733:e233f5660da4

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Added Java files from Maxine project.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Sat, 17 Dec 2011 19:59:18 +0100
parents
children 79c91d220d73
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3733
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1 /*
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2 * Copyright (c) 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.oracle.max.graal.hotspot;
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24
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25 import static com.oracle.max.asm.target.amd64.AMD64.*;
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26
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27 import java.util.*;
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28
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29 import com.oracle.max.asm.target.amd64.*;
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30 import com.oracle.max.graal.compiler.util.*;
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31 import com.sun.cri.ci.*;
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32 import com.sun.cri.ci.CiCallingConvention.Type;
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33 import com.sun.cri.ci.CiRegister.RegisterFlag;
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34 import com.sun.cri.ri.*;
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35
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36 public class HotSpotRegisterConfig implements RiRegisterConfig {
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37
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38 // be careful - the contents of this array are duplicated in graal_CodeInstaller.cpp
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39 private final CiRegister[] allocatable = {
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40 rax, rbx, rcx, rdx, rsi, rdi, r8, r9, /* r10, */r11, r12, r13, r14, /*r15*/
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41 xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7,
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42 xmm8, xmm9, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15
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43 };
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44
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45 private final EnumMap<RegisterFlag, CiRegister[]> categorized = CiRegister.categorize(allocatable);
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46
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47 private final RiRegisterAttributes[] attributesMap;
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48
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49 @Override
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50 public CiRegister[] getAllocatableRegisters() {
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51 return allocatable;
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52 }
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53
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54 @Override
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55 public EnumMap<RegisterFlag, CiRegister[]> getCategorizedAllocatableRegisters() {
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56 return categorized;
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57 }
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58
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59 @Override
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60 public RiRegisterAttributes[] getAttributesMap() {
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61 return attributesMap;
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62 }
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63
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64 private final CiRegister[] generalParameterRegisters;
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65 private final CiRegister[] xmmParameterRegisters = {xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7};
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66 private final CiRegister[] allParameterRegisters;
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67
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68 private final CiRegister[] rsaRegs = {
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69 rax, rcx, rdx, rbx, rsp, rbp, rsi, rdi,
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70 r8, r9, r10, r11, r12, r13, r14, r15,
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71 xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7,
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72 xmm8, xmm9, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15
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73 };
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74
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75 private final CiCalleeSaveLayout registerSaveArea;
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76
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77 private final HotSpotVMConfig config;
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78
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79
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80 public HotSpotRegisterConfig(HotSpotVMConfig config, boolean globalStubConfig) {
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81 this.config = config;
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82 if (config.windowsOs) {
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83 generalParameterRegisters = new CiRegister[] {rdx, r8, r9, rdi, rsi, rcx};
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84 } else {
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85 generalParameterRegisters = new CiRegister[] {rsi, rdx, rcx, r8, r9, rdi};
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86 }
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87
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88 if (globalStubConfig) {
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89 registerSaveArea = new CiCalleeSaveLayout(0, -1, 8, rsaRegs);
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90 } else {
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91 registerSaveArea = new CiCalleeSaveLayout(0, 0, 0, new CiRegister[0]);
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92 }
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93
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94 attributesMap = RiRegisterAttributes.createMap(this, AMD64.allRegisters);
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95 allParameterRegisters = Arrays.copyOf(generalParameterRegisters, generalParameterRegisters.length + xmmParameterRegisters.length);
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96 System.arraycopy(xmmParameterRegisters, 0, allParameterRegisters, generalParameterRegisters.length, xmmParameterRegisters.length);
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97 }
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98
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99 @Override
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100 public CiRegister[] getCallerSaveRegisters() {
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101 return getAllocatableRegisters();
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102 }
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103
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104 @Override
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105 public CiRegister getRegisterForRole(int index) {
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106 throw new UnsupportedOperationException();
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107 }
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108
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109 @Override
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110 public CiCallingConvention getCallingConvention(Type type, CiKind[] parameters, CiTarget target, boolean stackOnly) {
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111 if (type == Type.NativeCall) {
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112 throw new UnsupportedOperationException();
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113 }
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114 return callingConvention(parameters, type, target, stackOnly);
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115 }
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116
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117 public CiRegister[] getCallingConventionRegisters(Type type, RegisterFlag flag) {
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118 return allParameterRegisters;
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119 }
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120
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121 private CiCallingConvention callingConvention(CiKind[] types, Type type, CiTarget target, boolean stackOnly) {
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122 CiValue[] locations = new CiValue[types.length];
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123
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124 int currentGeneral = 0;
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125 int currentXMM = 0;
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126 int currentStackIndex = 0;
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127
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128 for (int i = 0; i < types.length; i++) {
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129 final CiKind kind = types[i];
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130
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131 switch (kind) {
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132 case Byte:
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133 case Boolean:
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134 case Short:
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135 case Char:
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136 case Int:
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137 case Long:
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138 case Object:
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139 if (!stackOnly && currentGeneral < generalParameterRegisters.length) {
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140 CiRegister register = generalParameterRegisters[currentGeneral++];
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141 locations[i] = register.asValue(kind);
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142 }
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143 break;
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144 case Float:
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145 case Double:
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146 if (!stackOnly && currentXMM < xmmParameterRegisters.length) {
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147 CiRegister register = xmmParameterRegisters[currentXMM++];
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148 locations[i] = register.asValue(kind);
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149 }
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150 break;
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151 default:
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152 throw Util.shouldNotReachHere();
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153 }
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154
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155 if (locations[i] == null) {
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156 // we need to adjust for the frame pointer stored on the stack, which shifts incoming arguments by one slot
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157 locations[i] = CiStackSlot.get(kind.stackKind(), currentStackIndex + (type.out ? 0 : 1), !type.out);
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158 currentStackIndex += target.spillSlots(kind);
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159 }
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160 }
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161
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162 int stackSize = currentStackIndex * target.spillSlotSize;
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163 if (type == Type.RuntimeCall && config.windowsOs) {
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164 stackSize = Math.max(stackSize, config.runtimeCallStackSize);
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165 }
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166 return new CiCallingConvention(locations, stackSize);
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167 }
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168
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169 @Override
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170 public CiRegister getReturnRegister(CiKind kind) {
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171 switch (kind) {
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172 case Boolean:
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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173 case Byte:
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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174 case Char:
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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175 case Short:
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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176 case Int:
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177 case Long:
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178 case Object:
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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179 return rax;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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180 case Float:
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parents:
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181 case Double:
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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182 return xmm0;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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183 case Void:
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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184 case Illegal:
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185 return null;
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186 default:
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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187 throw new UnsupportedOperationException("no return register for type " + kind);
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188 }
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parents:
diff changeset
189 }
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diff changeset
190
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parents:
diff changeset
191 @Override
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parents:
diff changeset
192 public CiRegister getScratchRegister() {
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193 return r10;
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parents:
diff changeset
194 }
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parents:
diff changeset
195
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parents:
diff changeset
196 @Override
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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diff changeset
197 public CiRegister getFrameRegister() {
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parents:
diff changeset
198 return rsp;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
199 }
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parents:
diff changeset
200
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
201 public CiCalleeSaveLayout getCalleeSaveLayout() {
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
202 return registerSaveArea;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
203 }
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
204
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
205 @Override
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
206 public String toString() {
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
207 String res = String.format(
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parents:
diff changeset
208 "Allocatable: " + Arrays.toString(getAllocatableRegisters()) + "%n" +
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
209 "CallerSave: " + Arrays.toString(getCallerSaveRegisters()) + "%n" +
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
210 "CalleeSave: " + getCalleeSaveLayout() + "%n" +
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
211 "Scratch: " + getScratchRegister() + "%n");
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
212 return res;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
213 }
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
214 }