Mercurial > hg > truffle
annotate graal/com.oracle.jvmci.hotspot.amd64/src/com/oracle/jvmci/hotspot/amd64/AMD64HotSpotRegisterConfig.java @ 21746:372fd062bb85
improved names of arraycopy snippet counters
author | Doug Simon <doug.simon@oracle.com> |
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date | Fri, 05 Jun 2015 17:07:45 +0200 |
parents | e0b5d4fcd929 |
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1 /* |
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2 * Copyright (c) 2011, 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.jvmci.hotspot.amd64; |
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24 |
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25 import com.oracle.jvmci.amd64.*; |
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26 import com.oracle.jvmci.code.Register; |
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27 import com.oracle.jvmci.code.RegisterConfig; |
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28 import com.oracle.jvmci.code.TargetDescription; |
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29 import com.oracle.jvmci.code.CallingConvention; |
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30 import com.oracle.jvmci.code.StackSlot; |
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31 import com.oracle.jvmci.code.RegisterAttributes; |
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32 import com.oracle.jvmci.code.CalleeSaveLayout; |
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33 import com.oracle.jvmci.code.Architecture; |
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34 import com.oracle.jvmci.meta.JavaType; |
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35 import com.oracle.jvmci.meta.Value; |
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36 import com.oracle.jvmci.meta.PlatformKind; |
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37 import com.oracle.jvmci.meta.AllocatableValue; |
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38 import com.oracle.jvmci.meta.Kind; |
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39 |
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40 import static com.oracle.jvmci.amd64.AMD64.*; |
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41 |
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42 import java.util.*; |
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43 |
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44 import com.oracle.jvmci.code.CallingConvention.Type; |
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45 import com.oracle.jvmci.common.*; |
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46 import com.oracle.jvmci.hotspot.*; |
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47 |
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48 public class AMD64HotSpotRegisterConfig implements RegisterConfig { |
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49 |
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50 private final Architecture architecture; |
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51 |
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52 private final Register[] allocatable; |
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53 |
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54 private final int maxFrameSize; |
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55 |
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56 /** |
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57 * The caller saved registers always include all parameter registers. |
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58 */ |
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59 private final Register[] callerSaved; |
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60 |
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61 private final boolean allAllocatableAreCallerSaved; |
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62 |
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63 private final RegisterAttributes[] attributesMap; |
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64 |
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65 public int getMaximumFrameSize() { |
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66 return maxFrameSize; |
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67 } |
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68 |
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69 @Override |
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70 public Register[] getAllocatableRegisters() { |
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71 return allocatable.clone(); |
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72 } |
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73 |
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74 public Register[] filterAllocatableRegisters(PlatformKind kind, Register[] registers) { |
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75 ArrayList<Register> list = new ArrayList<>(); |
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76 for (Register reg : registers) { |
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77 if (architecture.canStoreValue(reg.getRegisterCategory(), kind)) { |
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78 list.add(reg); |
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79 } |
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80 } |
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81 |
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82 Register[] ret = list.toArray(new Register[list.size()]); |
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83 return ret; |
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84 } |
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85 |
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86 @Override |
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87 public RegisterAttributes[] getAttributesMap() { |
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88 return attributesMap.clone(); |
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89 } |
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90 |
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91 private final Register[] javaGeneralParameterRegisters; |
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92 private final Register[] nativeGeneralParameterRegisters; |
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93 private final Register[] xmmParameterRegisters = {xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7}; |
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94 |
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95 /* |
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96 * Some ABIs (e.g. Windows) require a so-called "home space", that is a save area on the stack |
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97 * to store the argument registers |
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98 */ |
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99 private final boolean needsNativeStackHomeSpace; |
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100 |
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101 private final CalleeSaveLayout csl; |
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102 |
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103 private static Register[] initAllocatable(boolean reserveForHeapBase) { |
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104 Register[] registers = null; |
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105 // @formatter:off |
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106 if (reserveForHeapBase) { |
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107 registers = new Register[] { |
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108 rax, rbx, rcx, rdx, /*rsp,*/ rbp, rsi, rdi, r8, r9, r10, r11, /*r12,*/ r13, r14, /*r15, */ |
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109 xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, |
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110 xmm8, xmm9, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15 |
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111 }; |
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112 } else { |
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113 registers = new Register[] { |
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114 rax, rbx, rcx, rdx, /*rsp,*/ rbp, rsi, rdi, r8, r9, r10, r11, r12, r13, r14, /*r15, */ |
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115 xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, |
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116 xmm8, xmm9, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15 |
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117 }; |
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118 } |
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119 // @formatter:on |
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120 return registers; |
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121 } |
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122 |
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123 public AMD64HotSpotRegisterConfig(Architecture architecture, HotSpotVMConfig config) { |
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124 this(architecture, config, initAllocatable(config.useCompressedOops)); |
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125 assert callerSaved.length >= allocatable.length; |
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126 } |
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127 |
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128 public AMD64HotSpotRegisterConfig(Architecture architecture, HotSpotVMConfig config, Register[] allocatable) { |
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129 this.architecture = architecture; |
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130 this.maxFrameSize = config.maxFrameSize; |
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131 |
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132 if (config.windowsOs) { |
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133 javaGeneralParameterRegisters = new Register[]{rdx, r8, r9, rdi, rsi, rcx}; |
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134 nativeGeneralParameterRegisters = new Register[]{rcx, rdx, r8, r9}; |
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135 this.needsNativeStackHomeSpace = true; |
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136 } else { |
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137 javaGeneralParameterRegisters = new Register[]{rsi, rdx, rcx, r8, r9, rdi}; |
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138 nativeGeneralParameterRegisters = new Register[]{rdi, rsi, rdx, rcx, r8, r9}; |
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139 this.needsNativeStackHomeSpace = false; |
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140 } |
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141 |
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142 csl = null; |
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143 this.allocatable = allocatable.clone(); |
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144 Set<Register> callerSaveSet = new HashSet<>(); |
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145 Collections.addAll(callerSaveSet, allocatable); |
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146 Collections.addAll(callerSaveSet, xmmParameterRegisters); |
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147 Collections.addAll(callerSaveSet, javaGeneralParameterRegisters); |
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148 Collections.addAll(callerSaveSet, nativeGeneralParameterRegisters); |
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149 callerSaved = callerSaveSet.toArray(new Register[callerSaveSet.size()]); |
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150 |
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151 allAllocatableAreCallerSaved = true; |
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152 attributesMap = RegisterAttributes.createMap(this, AMD64.allRegisters); |
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153 } |
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154 |
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155 @Override |
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156 public Register[] getCallerSaveRegisters() { |
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157 return callerSaved; |
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158 } |
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159 |
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160 @Override |
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161 public boolean areAllAllocatableRegistersCallerSaved() { |
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162 return allAllocatableAreCallerSaved; |
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163 } |
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164 |
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165 @Override |
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166 public Register getRegisterForRole(int index) { |
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167 throw new UnsupportedOperationException(); |
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168 } |
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169 |
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170 @Override |
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171 public CallingConvention getCallingConvention(Type type, JavaType returnType, JavaType[] parameterTypes, TargetDescription target, boolean stackOnly) { |
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172 if (type == Type.NativeCall) { |
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173 return callingConvention(nativeGeneralParameterRegisters, returnType, parameterTypes, type, target, stackOnly); |
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174 } |
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175 // On x64, parameter locations are the same whether viewed |
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176 // from the caller or callee perspective |
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177 return callingConvention(javaGeneralParameterRegisters, returnType, parameterTypes, type, target, stackOnly); |
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178 } |
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179 |
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180 public Register[] getCallingConventionRegisters(Type type, Kind kind) { |
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181 if (architecture.canStoreValue(XMM, kind)) { |
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182 return xmmParameterRegisters; |
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183 } |
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184 assert architecture.canStoreValue(CPU, kind); |
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185 return type == Type.NativeCall ? nativeGeneralParameterRegisters : javaGeneralParameterRegisters; |
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186 } |
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187 |
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188 private CallingConvention callingConvention(Register[] generalParameterRegisters, JavaType returnType, JavaType[] parameterTypes, Type type, TargetDescription target, boolean stackOnly) { |
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189 AllocatableValue[] locations = new AllocatableValue[parameterTypes.length]; |
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190 |
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191 int currentGeneral = 0; |
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192 int currentXMM = 0; |
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193 int currentStackOffset = type == Type.NativeCall && needsNativeStackHomeSpace ? generalParameterRegisters.length * target.wordSize : 0; |
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194 |
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195 for (int i = 0; i < parameterTypes.length; i++) { |
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196 final Kind kind = parameterTypes[i].getKind(); |
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197 |
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198 switch (kind) { |
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199 case Byte: |
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200 case Boolean: |
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201 case Short: |
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202 case Char: |
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203 case Int: |
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204 case Long: |
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205 case Object: |
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206 if (!stackOnly && currentGeneral < generalParameterRegisters.length) { |
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207 Register register = generalParameterRegisters[currentGeneral++]; |
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208 locations[i] = register.asValue(target.getLIRKind(kind)); |
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209 } |
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210 break; |
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211 case Float: |
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212 case Double: |
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213 if (!stackOnly && currentXMM < xmmParameterRegisters.length) { |
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214 Register register = xmmParameterRegisters[currentXMM++]; |
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Introduce LIRKind to accurately track oop references in backend.
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215 locations[i] = register.asValue(target.getLIRKind(kind)); |
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216 } |
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217 break; |
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218 default: |
21543
93c50cefb9e8
moved GraalInternalError to com.oracle.jvmci.common and renamed it to JVMCIError (JBS:GRAAL-53)
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219 throw JVMCIError.shouldNotReachHere(); |
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220 } |
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221 |
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222 if (locations[i] == null) { |
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223 locations[i] = StackSlot.get(target.getLIRKind(kind.getStackKind()), currentStackOffset, !type.out); |
14559
883fbd3e06e0
Make size of PlatformKind overridable by VM specific code.
Roland Schatz <roland.schatz@oracle.com>
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224 currentStackOffset += Math.max(target.getSizeInBytes(kind), target.wordSize); |
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225 } |
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226 } |
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227 |
7300
2912b72d840a
More complete and reusable Word type
Christian Wimmer <christian.wimmer@oracle.com>
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7098
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228 Kind returnKind = returnType == null ? Kind.Void : returnType.getKind(); |
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229 AllocatableValue returnLocation = returnKind == Kind.Void ? Value.ILLEGAL : getReturnRegister(returnKind).asValue(target.getLIRKind(returnKind.getStackKind())); |
6470
b1010f7bc0bf
expanded CallingConvention API class to also include the location of the value (if any) returned by a call
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230 return new CallingConvention(currentStackOffset, returnLocation, locations); |
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231 } |
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232 |
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233 @Override |
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234 public Register getReturnRegister(Kind kind) { |
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235 switch (kind) { |
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236 case Boolean: |
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237 case Byte: |
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238 case Char: |
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239 case Short: |
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240 case Int: |
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241 case Long: |
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242 case Object: |
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243 return rax; |
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244 case Float: |
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245 case Double: |
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246 return xmm0; |
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247 case Void: |
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248 case Illegal: |
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249 return null; |
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250 default: |
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251 throw new UnsupportedOperationException("no return register for type " + kind); |
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252 } |
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253 } |
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254 |
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255 @Override |
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256 public Register getFrameRegister() { |
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257 return rsp; |
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258 } |
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259 |
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260 public CalleeSaveLayout getCalleeSaveLayout() { |
5233
efbb1e33e2f3
removed XIR prologue and epilogues - architecture and runtime specific subclass of Backend is now used instead
Doug Simon <doug.simon@oracle.com>
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261 return csl; |
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262 } |
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263 |
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264 @Override |
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265 public String toString() { |
9717
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consolidated the two RegisterConfig instances for HotSpotRuntime into one
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266 return String.format("Allocatable: " + Arrays.toString(getAllocatableRegisters()) + "%n" + "CallerSave: " + Arrays.toString(getCallerSaveRegisters()) + "%n"); |
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267 } |
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268 } |