0
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1 /*
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337
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2 * Copyright 2003-2008 Sun Microsystems, Inc. All Rights Reserved.
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0
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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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 #include "incls/_precompiled.incl"
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26 #include "incls/_interpreterRT_x86_64.cpp.incl"
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27
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28 #define __ _masm->
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29
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30 // Implementation of SignatureHandlerGenerator
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31
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32 Register InterpreterRuntime::SignatureHandlerGenerator::from() { return r14; }
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33 Register InterpreterRuntime::SignatureHandlerGenerator::to() { return rsp; }
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34 Register InterpreterRuntime::SignatureHandlerGenerator::temp() { return rscratch1; }
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35
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36 void InterpreterRuntime::SignatureHandlerGenerator::pass_int() {
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37 const Address src(from(), Interpreter::local_offset_in_bytes(offset()));
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38
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39 #ifdef _WIN64
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40 switch (_num_args) {
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41 case 0:
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42 __ movl(c_rarg1, src);
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43 _num_args++;
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44 break;
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45 case 1:
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46 __ movl(c_rarg2, src);
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47 _num_args++;
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48 break;
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49 case 2:
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50 __ movl(c_rarg3, src);
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51 _num_args++;
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52 break;
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53 default:
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54 __ movl(rax, src);
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55 __ movl(Address(to(), _stack_offset), rax);
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56 _stack_offset += wordSize;
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57 break;
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58 }
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59 #else
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60 switch (_num_int_args) {
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61 case 0:
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62 __ movl(c_rarg1, src);
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63 _num_int_args++;
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64 break;
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65 case 1:
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66 __ movl(c_rarg2, src);
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67 _num_int_args++;
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68 break;
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69 case 2:
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70 __ movl(c_rarg3, src);
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71 _num_int_args++;
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72 break;
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73 case 3:
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74 __ movl(c_rarg4, src);
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75 _num_int_args++;
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76 break;
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77 case 4:
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78 __ movl(c_rarg5, src);
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79 _num_int_args++;
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80 break;
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81 default:
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82 __ movl(rax, src);
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83 __ movl(Address(to(), _stack_offset), rax);
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84 _stack_offset += wordSize;
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85 break;
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86 }
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87 #endif
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88 }
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89
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90 void InterpreterRuntime::SignatureHandlerGenerator::pass_long() {
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91 const Address src(from(), Interpreter::local_offset_in_bytes(offset() + 1));
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92
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93 #ifdef _WIN64
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94 switch (_num_args) {
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95 case 0:
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304
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96 __ movptr(c_rarg1, src);
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0
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97 _num_args++;
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98 break;
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99 case 1:
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304
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100 __ movptr(c_rarg2, src);
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0
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101 _num_args++;
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102 break;
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103 case 2:
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304
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104 __ movptr(c_rarg3, src);
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0
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105 _num_args++;
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106 break;
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107 case 3:
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108 default:
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304
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109 __ movptr(rax, src);
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110 __ movptr(Address(to(), _stack_offset), rax);
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0
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111 _stack_offset += wordSize;
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112 break;
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113 }
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114 #else
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115 switch (_num_int_args) {
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116 case 0:
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304
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117 __ movptr(c_rarg1, src);
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0
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118 _num_int_args++;
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119 break;
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120 case 1:
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304
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121 __ movptr(c_rarg2, src);
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0
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122 _num_int_args++;
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123 break;
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124 case 2:
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304
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125 __ movptr(c_rarg3, src);
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0
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126 _num_int_args++;
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127 break;
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128 case 3:
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304
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129 __ movptr(c_rarg4, src);
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0
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130 _num_int_args++;
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131 break;
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132 case 4:
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304
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133 __ movptr(c_rarg5, src);
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0
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134 _num_int_args++;
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135 break;
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136 default:
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304
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137 __ movptr(rax, src);
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138 __ movptr(Address(to(), _stack_offset), rax);
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0
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139 _stack_offset += wordSize;
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140 break;
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141 }
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142 #endif
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143 }
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144
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145 void InterpreterRuntime::SignatureHandlerGenerator::pass_float() {
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146 const Address src(from(), Interpreter::local_offset_in_bytes(offset()));
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147
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148 #ifdef _WIN64
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149 if (_num_args < Argument::n_float_register_parameters_c-1) {
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150 __ movflt(as_XMMRegister(++_num_args), src);
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151 } else {
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152 __ movl(rax, src);
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153 __ movl(Address(to(), _stack_offset), rax);
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154 _stack_offset += wordSize;
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155 }
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156 #else
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157 if (_num_fp_args < Argument::n_float_register_parameters_c) {
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158 __ movflt(as_XMMRegister(_num_fp_args++), src);
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159 } else {
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160 __ movl(rax, src);
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161 __ movl(Address(to(), _stack_offset), rax);
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162 _stack_offset += wordSize;
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163 }
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164 #endif
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165 }
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166
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167 void InterpreterRuntime::SignatureHandlerGenerator::pass_double() {
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168 const Address src(from(), Interpreter::local_offset_in_bytes(offset() + 1));
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169
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170 #ifdef _WIN64
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171 if (_num_args < Argument::n_float_register_parameters_c-1) {
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172 __ movdbl(as_XMMRegister(++_num_args), src);
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173 } else {
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304
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174 __ movptr(rax, src);
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175 __ movptr(Address(to(), _stack_offset), rax);
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0
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176 _stack_offset += wordSize;
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177 }
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178 #else
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179 if (_num_fp_args < Argument::n_float_register_parameters_c) {
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180 __ movdbl(as_XMMRegister(_num_fp_args++), src);
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181 } else {
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304
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182 __ movptr(rax, src);
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183 __ movptr(Address(to(), _stack_offset), rax);
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0
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184 _stack_offset += wordSize;
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185 }
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186 #endif
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187 }
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188
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189 void InterpreterRuntime::SignatureHandlerGenerator::pass_object() {
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190 const Address src(from(), Interpreter::local_offset_in_bytes(offset()));
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191
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192 #ifdef _WIN64
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193 switch (_num_args) {
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194 case 0:
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195 assert(offset() == 0, "argument register 1 can only be (non-null) receiver");
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196 __ lea(c_rarg1, src);
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0
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197 _num_args++;
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198 break;
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199 case 1:
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304
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200 __ lea(rax, src);
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0
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201 __ xorl(c_rarg2, c_rarg2);
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304
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202 __ cmpptr(src, 0);
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203 __ cmov(Assembler::notEqual, c_rarg2, rax);
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0
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204 _num_args++;
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205 break;
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206 case 2:
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304
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207 __ lea(rax, src);
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0
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208 __ xorl(c_rarg3, c_rarg3);
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209 __ cmpptr(src, 0);
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210 __ cmov(Assembler::notEqual, c_rarg3, rax);
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0
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211 _num_args++;
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212 break;
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213 default:
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304
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214 __ lea(rax, src);
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0
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215 __ xorl(temp(), temp());
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304
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216 __ cmpptr(src, 0);
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217 __ cmov(Assembler::notEqual, temp(), rax);
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218 __ movptr(Address(to(), _stack_offset), temp());
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0
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219 _stack_offset += wordSize;
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220 break;
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221 }
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222 #else
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223 switch (_num_int_args) {
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224 case 0:
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225 assert(offset() == 0, "argument register 1 can only be (non-null) receiver");
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226 __ lea(c_rarg1, src);
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227 _num_int_args++;
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228 break;
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229 case 1:
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304
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230 __ lea(rax, src);
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0
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231 __ xorl(c_rarg2, c_rarg2);
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304
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232 __ cmpptr(src, 0);
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233 __ cmov(Assembler::notEqual, c_rarg2, rax);
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0
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234 _num_int_args++;
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235 break;
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236 case 2:
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304
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237 __ lea(rax, src);
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0
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238 __ xorl(c_rarg3, c_rarg3);
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304
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239 __ cmpptr(src, 0);
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240 __ cmov(Assembler::notEqual, c_rarg3, rax);
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0
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241 _num_int_args++;
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242 break;
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243 case 3:
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304
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244 __ lea(rax, src);
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0
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245 __ xorl(c_rarg4, c_rarg4);
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304
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246 __ cmpptr(src, 0);
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247 __ cmov(Assembler::notEqual, c_rarg4, rax);
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0
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248 _num_int_args++;
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249 break;
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250 case 4:
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304
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251 __ lea(rax, src);
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0
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252 __ xorl(c_rarg5, c_rarg5);
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304
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253 __ cmpptr(src, 0);
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254 __ cmov(Assembler::notEqual, c_rarg5, rax);
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0
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255 _num_int_args++;
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256 break;
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257 default:
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304
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258 __ lea(rax, src);
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0
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259 __ xorl(temp(), temp());
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304
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260 __ cmpptr(src, 0);
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261 __ cmov(Assembler::notEqual, temp(), rax);
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262 __ movptr(Address(to(), _stack_offset), temp());
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0
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263 _stack_offset += wordSize;
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264 break;
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265 }
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266 #endif
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267 }
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268
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269 void InterpreterRuntime::SignatureHandlerGenerator::generate(uint64_t fingerprint) {
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270 // generate code to handle arguments
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271 iterate(fingerprint);
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272
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273 // return result handler
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274 __ lea(rax, ExternalAddress(Interpreter::result_handler(method()->result_type())));
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275 __ ret(0);
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276
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277 __ flush();
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278 }
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279
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280
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281 // Implementation of SignatureHandlerLibrary
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282
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283 void SignatureHandlerLibrary::pd_set_handler(address handler) {}
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284
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285
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286 #ifdef _WIN64
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287 class SlowSignatureHandler
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288 : public NativeSignatureIterator {
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289 private:
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290 address _from;
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291 intptr_t* _to;
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292 intptr_t* _reg_args;
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293 intptr_t* _fp_identifiers;
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294 unsigned int _num_args;
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295
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296 #ifdef ASSERT
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297 void verify_tag(frame::Tag t) {
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298 assert(!TaggedStackInterpreter ||
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299 *(intptr_t*)(_from+Interpreter::local_tag_offset_in_bytes(0)) == t, "wrong tag");
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300 }
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301 #endif // ASSERT
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302
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303 virtual void pass_int()
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304 {
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305 jint from_obj = *(jint *)(_from+Interpreter::local_offset_in_bytes(0));
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306 debug_only(verify_tag(frame::TagValue));
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307 _from -= Interpreter::stackElementSize();
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308
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309 if (_num_args < Argument::n_int_register_parameters_c-1) {
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310 *_reg_args++ = from_obj;
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311 _num_args++;
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312 } else {
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313 *_to++ = from_obj;
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314 }
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315 }
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316
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317 virtual void pass_long()
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318 {
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319 intptr_t from_obj = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1));
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320 debug_only(verify_tag(frame::TagValue));
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321 _from -= 2*Interpreter::stackElementSize();
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322
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323 if (_num_args < Argument::n_int_register_parameters_c-1) {
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324 *_reg_args++ = from_obj;
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325 _num_args++;
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326 } else {
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327 *_to++ = from_obj;
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328 }
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329 }
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330
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331 virtual void pass_object()
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332 {
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333 intptr_t *from_addr = (intptr_t*)(_from + Interpreter::local_offset_in_bytes(0));
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334 debug_only(verify_tag(frame::TagReference));
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335 _from -= Interpreter::stackElementSize();
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336 if (_num_args < Argument::n_int_register_parameters_c-1) {
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337 *_reg_args++ = (*from_addr == 0) ? NULL : (intptr_t) from_addr;
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338 _num_args++;
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339 } else {
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340 *_to++ = (*from_addr == 0) ? NULL : (intptr_t) from_addr;
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341 }
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342 }
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343
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344 virtual void pass_float()
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345 {
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346 jint from_obj = *(jint *)(_from+Interpreter::local_offset_in_bytes(0));
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347 debug_only(verify_tag(frame::TagValue));
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348 _from -= Interpreter::stackElementSize();
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349
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350 if (_num_args < Argument::n_float_register_parameters_c-1) {
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351 *_reg_args++ = from_obj;
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352 *_fp_identifiers |= (0x01 << (_num_args*2)); // mark as float
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353 _num_args++;
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354 } else {
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355 *_to++ = from_obj;
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356 }
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357 }
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358
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359 virtual void pass_double()
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360 {
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361 intptr_t from_obj = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1));
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362 debug_only(verify_tag(frame::TagValue));
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363 _from -= 2*Interpreter::stackElementSize();
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364
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365 if (_num_args < Argument::n_float_register_parameters_c-1) {
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366 *_reg_args++ = from_obj;
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367 *_fp_identifiers |= (0x3 << (_num_args*2)); // mark as double
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368 _num_args++;
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369 } else {
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370 *_to++ = from_obj;
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371 }
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372 }
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373
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374 public:
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375 SlowSignatureHandler(methodHandle method, address from, intptr_t* to)
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376 : NativeSignatureIterator(method)
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377 {
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378 _from = from;
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379 _to = to;
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380
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381 _reg_args = to - (method->is_static() ? 4 : 5);
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382 _fp_identifiers = to - 2;
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383 _to = _to + 4; // Windows reserves stack space for register arguments
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384 *(int*) _fp_identifiers = 0;
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385 _num_args = (method->is_static() ? 1 : 0);
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386 }
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387 };
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388 #else
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389 class SlowSignatureHandler
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390 : public NativeSignatureIterator {
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391 private:
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392 address _from;
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393 intptr_t* _to;
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394 intptr_t* _int_args;
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395 intptr_t* _fp_args;
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396 intptr_t* _fp_identifiers;
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397 unsigned int _num_int_args;
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398 unsigned int _num_fp_args;
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399
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400 #ifdef ASSERT
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401 void verify_tag(frame::Tag t) {
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402 assert(!TaggedStackInterpreter ||
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403 *(intptr_t*)(_from+Interpreter::local_tag_offset_in_bytes(0)) == t, "wrong tag");
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404 }
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405 #endif // ASSERT
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406
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407 virtual void pass_int()
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408 {
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409 jint from_obj = *(jint *)(_from+Interpreter::local_offset_in_bytes(0));
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410 debug_only(verify_tag(frame::TagValue));
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411 _from -= Interpreter::stackElementSize();
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412
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413 if (_num_int_args < Argument::n_int_register_parameters_c-1) {
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414 *_int_args++ = from_obj;
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415 _num_int_args++;
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416 } else {
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417 *_to++ = from_obj;
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418 }
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419 }
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420
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421 virtual void pass_long()
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422 {
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423 intptr_t from_obj = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1));
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424 debug_only(verify_tag(frame::TagValue));
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425 _from -= 2*Interpreter::stackElementSize();
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426
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427 if (_num_int_args < Argument::n_int_register_parameters_c-1) {
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428 *_int_args++ = from_obj;
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429 _num_int_args++;
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430 } else {
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431 *_to++ = from_obj;
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432 }
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433 }
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434
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435 virtual void pass_object()
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436 {
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437 intptr_t *from_addr = (intptr_t*)(_from + Interpreter::local_offset_in_bytes(0));
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438 debug_only(verify_tag(frame::TagReference));
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439 _from -= Interpreter::stackElementSize();
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440
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441 if (_num_int_args < Argument::n_int_register_parameters_c-1) {
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442 *_int_args++ = (*from_addr == 0) ? NULL : (intptr_t)from_addr;
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443 _num_int_args++;
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444 } else {
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445 *_to++ = (*from_addr == 0) ? NULL : (intptr_t) from_addr;
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446 }
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447 }
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448
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449 virtual void pass_float()
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450 {
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451 jint from_obj = *(jint*)(_from+Interpreter::local_offset_in_bytes(0));
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452 debug_only(verify_tag(frame::TagValue));
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453 _from -= Interpreter::stackElementSize();
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454
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455 if (_num_fp_args < Argument::n_float_register_parameters_c) {
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456 *_fp_args++ = from_obj;
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457 _num_fp_args++;
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458 } else {
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459 *_to++ = from_obj;
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460 }
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461 }
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462
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463 virtual void pass_double()
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464 {
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465 intptr_t from_obj = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1));
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466 _from -= 2*Interpreter::stackElementSize();
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467
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468 if (_num_fp_args < Argument::n_float_register_parameters_c) {
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469 *_fp_args++ = from_obj;
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470 *_fp_identifiers |= (1 << _num_fp_args); // mark as double
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471 _num_fp_args++;
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472 } else {
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473 *_to++ = from_obj;
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474 }
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475 }
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476
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477 public:
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478 SlowSignatureHandler(methodHandle method, address from, intptr_t* to)
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479 : NativeSignatureIterator(method)
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480 {
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481 _from = from;
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482 _to = to;
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483
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484 _int_args = to - (method->is_static() ? 14 : 15);
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485 _fp_args = to - 9;
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486 _fp_identifiers = to - 10;
|
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487 *(int*) _fp_identifiers = 0;
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488 _num_int_args = (method->is_static() ? 1 : 0);
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489 _num_fp_args = 0;
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490 }
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491 };
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492 #endif
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493
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494
|
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495 IRT_ENTRY(address,
|
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496 InterpreterRuntime::slow_signature_handler(JavaThread* thread,
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497 methodOopDesc* method,
|
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498 intptr_t* from,
|
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499 intptr_t* to))
|
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500 methodHandle m(thread, (methodOop)method);
|
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501 assert(m->is_native(), "sanity check");
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502
|
|
503 // handle arguments
|
|
504 SlowSignatureHandler(m, (address)from, to + 1).iterate(UCONST64(-1));
|
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505
|
|
506 // return result handler
|
|
507 return Interpreter::result_handler(m->result_type());
|
|
508 IRT_END
|