1692
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1 /*
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1972
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2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
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1692
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3 * Copyright 2008, 2009, 2010 Red Hat, Inc.
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4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5 *
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6 * This code is free software; you can redistribute it and/or modify it
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7 * under the terms of the GNU General Public License version 2 only, as
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8 * published by the Free Software Foundation.
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9 *
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10 * This code is distributed in the hope that it will be useful, but WITHOUT
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11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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13 * version 2 for more details (a copy is included in the LICENSE file that
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14 * accompanied this code).
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15 *
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16 * You should have received a copy of the GNU General Public License version
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17 * 2 along with this work; if not, write to the Free Software Foundation,
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18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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19 *
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20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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21 * or visit www.oracle.com if you need additional information or have any
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22 * questions.
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23 *
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24 */
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25
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1972
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26 #include "precompiled.hpp"
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27 #include "interpreter/bytecodes.hpp"
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28 #include "shark/llvmHeaders.hpp"
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29 #include "shark/llvmValue.hpp"
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30 #include "shark/sharkBlock.hpp"
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31 #include "shark/sharkBuilder.hpp"
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32 #include "shark/sharkConstant.hpp"
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33 #include "shark/sharkState.hpp"
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34 #include "shark/sharkValue.hpp"
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35 #include "shark/shark_globals.hpp"
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36 #include "utilities/debug.hpp"
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37
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38 using namespace llvm;
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39
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40 void SharkBlock::parse_bytecode(int start, int limit) {
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41 SharkValue *a, *b, *c, *d;
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42 int i;
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43
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44 // Ensure the current state is initialized before we emit any code,
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45 // so that any setup code for the state is at the start of the block
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46 current_state();
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47
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48 // Parse the bytecodes
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49 iter()->reset_to_bci(start);
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50 while (iter()->next_bci() < limit) {
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51 NOT_PRODUCT(a = b = c = d = NULL);
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52 iter()->next();
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53
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54 if (SharkTraceBytecodes)
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55 tty->print_cr("%4d: %s", bci(), Bytecodes::name(bc()));
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56
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57 if (has_trap() && trap_bci() == bci()) {
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58 do_trap(trap_request());
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59 return;
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60 }
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61
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62 if (UseLoopSafepoints) {
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63 // XXX if a lcmp is followed by an if_?? then C2 maybe-inserts
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64 // the safepoint before the lcmp rather than before the if.
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65 // Maybe we should do this too. See parse2.cpp for details.
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66 switch (bc()) {
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67 case Bytecodes::_goto:
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68 case Bytecodes::_ifnull:
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69 case Bytecodes::_ifnonnull:
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70 case Bytecodes::_if_acmpeq:
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71 case Bytecodes::_if_acmpne:
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72 case Bytecodes::_ifeq:
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73 case Bytecodes::_ifne:
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74 case Bytecodes::_iflt:
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75 case Bytecodes::_ifle:
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76 case Bytecodes::_ifgt:
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77 case Bytecodes::_ifge:
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78 case Bytecodes::_if_icmpeq:
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79 case Bytecodes::_if_icmpne:
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80 case Bytecodes::_if_icmplt:
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81 case Bytecodes::_if_icmple:
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82 case Bytecodes::_if_icmpgt:
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83 case Bytecodes::_if_icmpge:
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84 if (iter()->get_dest() <= bci())
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85 maybe_add_backedge_safepoint();
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86 break;
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87
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88 case Bytecodes::_goto_w:
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89 if (iter()->get_far_dest() <= bci())
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90 maybe_add_backedge_safepoint();
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91 break;
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92
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93 case Bytecodes::_tableswitch:
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94 case Bytecodes::_lookupswitch:
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95 if (switch_default_dest() <= bci()) {
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96 maybe_add_backedge_safepoint();
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97 break;
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98 }
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99 int len = switch_table_length();
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100 for (int i = 0; i < len; i++) {
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101 if (switch_dest(i) <= bci()) {
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102 maybe_add_backedge_safepoint();
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103 break;
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104 }
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105 }
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106 break;
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107 }
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108 }
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109
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110 switch (bc()) {
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111 case Bytecodes::_nop:
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112 break;
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113
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114 case Bytecodes::_aconst_null:
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115 push(SharkValue::null());
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116 break;
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117
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118 case Bytecodes::_iconst_m1:
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119 push(SharkValue::jint_constant(-1));
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120 break;
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121 case Bytecodes::_iconst_0:
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122 push(SharkValue::jint_constant(0));
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123 break;
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124 case Bytecodes::_iconst_1:
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125 push(SharkValue::jint_constant(1));
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126 break;
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127 case Bytecodes::_iconst_2:
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128 push(SharkValue::jint_constant(2));
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129 break;
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130 case Bytecodes::_iconst_3:
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131 push(SharkValue::jint_constant(3));
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132 break;
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133 case Bytecodes::_iconst_4:
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134 push(SharkValue::jint_constant(4));
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135 break;
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136 case Bytecodes::_iconst_5:
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137 push(SharkValue::jint_constant(5));
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138 break;
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139
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140 case Bytecodes::_lconst_0:
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141 push(SharkValue::jlong_constant(0));
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142 break;
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143 case Bytecodes::_lconst_1:
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144 push(SharkValue::jlong_constant(1));
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145 break;
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146
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147 case Bytecodes::_fconst_0:
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148 push(SharkValue::jfloat_constant(0));
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149 break;
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150 case Bytecodes::_fconst_1:
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151 push(SharkValue::jfloat_constant(1));
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152 break;
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153 case Bytecodes::_fconst_2:
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154 push(SharkValue::jfloat_constant(2));
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155 break;
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156
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157 case Bytecodes::_dconst_0:
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158 push(SharkValue::jdouble_constant(0));
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159 break;
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160 case Bytecodes::_dconst_1:
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161 push(SharkValue::jdouble_constant(1));
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162 break;
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163
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164 case Bytecodes::_bipush:
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165 push(SharkValue::jint_constant(iter()->get_constant_u1()));
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166 break;
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167 case Bytecodes::_sipush:
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168 push(SharkValue::jint_constant(iter()->get_constant_u2()));
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169 break;
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170
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171 case Bytecodes::_ldc:
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172 case Bytecodes::_ldc_w:
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173 case Bytecodes::_ldc2_w:
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174 push(SharkConstant::for_ldc(iter())->value(builder()));
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175 break;
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176
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177 case Bytecodes::_iload_0:
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178 case Bytecodes::_lload_0:
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179 case Bytecodes::_fload_0:
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180 case Bytecodes::_dload_0:
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181 case Bytecodes::_aload_0:
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182 push(local(0));
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183 break;
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184 case Bytecodes::_iload_1:
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185 case Bytecodes::_lload_1:
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186 case Bytecodes::_fload_1:
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187 case Bytecodes::_dload_1:
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188 case Bytecodes::_aload_1:
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189 push(local(1));
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190 break;
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191 case Bytecodes::_iload_2:
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192 case Bytecodes::_lload_2:
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193 case Bytecodes::_fload_2:
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194 case Bytecodes::_dload_2:
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195 case Bytecodes::_aload_2:
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196 push(local(2));
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197 break;
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198 case Bytecodes::_iload_3:
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199 case Bytecodes::_lload_3:
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200 case Bytecodes::_fload_3:
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201 case Bytecodes::_dload_3:
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202 case Bytecodes::_aload_3:
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203 push(local(3));
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204 break;
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205 case Bytecodes::_iload:
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206 case Bytecodes::_lload:
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207 case Bytecodes::_fload:
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208 case Bytecodes::_dload:
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209 case Bytecodes::_aload:
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210 push(local(iter()->get_index()));
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211 break;
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212
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213 case Bytecodes::_baload:
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214 do_aload(T_BYTE);
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215 break;
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216 case Bytecodes::_caload:
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217 do_aload(T_CHAR);
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218 break;
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219 case Bytecodes::_saload:
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220 do_aload(T_SHORT);
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221 break;
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222 case Bytecodes::_iaload:
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223 do_aload(T_INT);
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224 break;
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225 case Bytecodes::_laload:
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226 do_aload(T_LONG);
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227 break;
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228 case Bytecodes::_faload:
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229 do_aload(T_FLOAT);
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230 break;
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231 case Bytecodes::_daload:
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232 do_aload(T_DOUBLE);
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233 break;
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234 case Bytecodes::_aaload:
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235 do_aload(T_OBJECT);
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236 break;
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237
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238 case Bytecodes::_istore_0:
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239 case Bytecodes::_lstore_0:
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240 case Bytecodes::_fstore_0:
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241 case Bytecodes::_dstore_0:
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242 case Bytecodes::_astore_0:
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243 set_local(0, pop());
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244 break;
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245 case Bytecodes::_istore_1:
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246 case Bytecodes::_lstore_1:
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247 case Bytecodes::_fstore_1:
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248 case Bytecodes::_dstore_1:
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249 case Bytecodes::_astore_1:
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250 set_local(1, pop());
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251 break;
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252 case Bytecodes::_istore_2:
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253 case Bytecodes::_lstore_2:
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254 case Bytecodes::_fstore_2:
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255 case Bytecodes::_dstore_2:
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256 case Bytecodes::_astore_2:
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257 set_local(2, pop());
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258 break;
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259 case Bytecodes::_istore_3:
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260 case Bytecodes::_lstore_3:
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261 case Bytecodes::_fstore_3:
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262 case Bytecodes::_dstore_3:
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263 case Bytecodes::_astore_3:
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264 set_local(3, pop());
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265 break;
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266 case Bytecodes::_istore:
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267 case Bytecodes::_lstore:
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268 case Bytecodes::_fstore:
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269 case Bytecodes::_dstore:
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270 case Bytecodes::_astore:
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271 set_local(iter()->get_index(), pop());
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272 break;
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273
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274 case Bytecodes::_bastore:
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275 do_astore(T_BYTE);
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276 break;
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277 case Bytecodes::_castore:
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278 do_astore(T_CHAR);
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279 break;
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280 case Bytecodes::_sastore:
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281 do_astore(T_SHORT);
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282 break;
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283 case Bytecodes::_iastore:
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284 do_astore(T_INT);
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285 break;
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286 case Bytecodes::_lastore:
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287 do_astore(T_LONG);
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288 break;
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289 case Bytecodes::_fastore:
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290 do_astore(T_FLOAT);
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291 break;
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292 case Bytecodes::_dastore:
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293 do_astore(T_DOUBLE);
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294 break;
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295 case Bytecodes::_aastore:
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296 do_astore(T_OBJECT);
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297 break;
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298
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299 case Bytecodes::_pop:
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300 xpop();
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301 break;
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302 case Bytecodes::_pop2:
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303 xpop();
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304 xpop();
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305 break;
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306 case Bytecodes::_swap:
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307 a = xpop();
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308 b = xpop();
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309 xpush(a);
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310 xpush(b);
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311 break;
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312 case Bytecodes::_dup:
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313 a = xpop();
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314 xpush(a);
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315 xpush(a);
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316 break;
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317 case Bytecodes::_dup_x1:
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318 a = xpop();
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319 b = xpop();
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320 xpush(a);
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321 xpush(b);
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322 xpush(a);
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323 break;
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324 case Bytecodes::_dup_x2:
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325 a = xpop();
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326 b = xpop();
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327 c = xpop();
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328 xpush(a);
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329 xpush(c);
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330 xpush(b);
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331 xpush(a);
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332 break;
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333 case Bytecodes::_dup2:
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334 a = xpop();
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335 b = xpop();
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336 xpush(b);
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337 xpush(a);
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338 xpush(b);
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339 xpush(a);
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340 break;
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341 case Bytecodes::_dup2_x1:
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342 a = xpop();
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343 b = xpop();
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344 c = xpop();
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345 xpush(b);
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346 xpush(a);
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347 xpush(c);
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348 xpush(b);
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349 xpush(a);
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350 break;
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351 case Bytecodes::_dup2_x2:
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352 a = xpop();
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353 b = xpop();
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354 c = xpop();
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355 d = xpop();
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356 xpush(b);
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357 xpush(a);
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358 xpush(d);
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359 xpush(c);
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360 xpush(b);
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361 xpush(a);
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362 break;
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363
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364 case Bytecodes::_arraylength:
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365 do_arraylength();
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366 break;
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367
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368 case Bytecodes::_getfield:
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369 do_getfield();
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370 break;
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371 case Bytecodes::_getstatic:
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372 do_getstatic();
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373 break;
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374 case Bytecodes::_putfield:
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375 do_putfield();
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376 break;
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377 case Bytecodes::_putstatic:
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378 do_putstatic();
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379 break;
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380
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381 case Bytecodes::_iadd:
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382 b = pop();
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383 a = pop();
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384 push(SharkValue::create_jint(
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385 builder()->CreateAdd(a->jint_value(), b->jint_value()), false));
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386 break;
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387 case Bytecodes::_isub:
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388 b = pop();
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389 a = pop();
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390 push(SharkValue::create_jint(
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391 builder()->CreateSub(a->jint_value(), b->jint_value()), false));
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392 break;
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393 case Bytecodes::_imul:
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394 b = pop();
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395 a = pop();
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396 push(SharkValue::create_jint(
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397 builder()->CreateMul(a->jint_value(), b->jint_value()), false));
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398 break;
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399 case Bytecodes::_idiv:
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400 do_idiv();
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401 break;
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402 case Bytecodes::_irem:
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403 do_irem();
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404 break;
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405 case Bytecodes::_ineg:
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406 a = pop();
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407 push(SharkValue::create_jint(
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408 builder()->CreateNeg(a->jint_value()), a->zero_checked()));
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409 break;
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410 case Bytecodes::_ishl:
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411 b = pop();
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412 a = pop();
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413 push(SharkValue::create_jint(
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414 builder()->CreateShl(
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415 a->jint_value(),
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416 builder()->CreateAnd(
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417 b->jint_value(), LLVMValue::jint_constant(0x1f))), false));
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418 break;
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419 case Bytecodes::_ishr:
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420 b = pop();
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421 a = pop();
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422 push(SharkValue::create_jint(
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423 builder()->CreateAShr(
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424 a->jint_value(),
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425 builder()->CreateAnd(
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426 b->jint_value(), LLVMValue::jint_constant(0x1f))), false));
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427 break;
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428 case Bytecodes::_iushr:
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429 b = pop();
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430 a = pop();
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431 push(SharkValue::create_jint(
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432 builder()->CreateLShr(
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433 a->jint_value(),
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434 builder()->CreateAnd(
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435 b->jint_value(), LLVMValue::jint_constant(0x1f))), false));
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436 break;
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437 case Bytecodes::_iand:
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438 b = pop();
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439 a = pop();
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440 push(SharkValue::create_jint(
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441 builder()->CreateAnd(a->jint_value(), b->jint_value()), false));
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442 break;
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443 case Bytecodes::_ior:
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444 b = pop();
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445 a = pop();
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446 push(SharkValue::create_jint(
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447 builder()->CreateOr(a->jint_value(), b->jint_value()),
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448 a->zero_checked() && b->zero_checked()));
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449 break;
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450 case Bytecodes::_ixor:
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451 b = pop();
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452 a = pop();
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453 push(SharkValue::create_jint(
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454 builder()->CreateXor(a->jint_value(), b->jint_value()), false));
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455 break;
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456
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457 case Bytecodes::_ladd:
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458 b = pop();
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459 a = pop();
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460 push(SharkValue::create_jlong(
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461 builder()->CreateAdd(a->jlong_value(), b->jlong_value()), false));
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462 break;
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463 case Bytecodes::_lsub:
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464 b = pop();
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465 a = pop();
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466 push(SharkValue::create_jlong(
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467 builder()->CreateSub(a->jlong_value(), b->jlong_value()), false));
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468 break;
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469 case Bytecodes::_lmul:
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470 b = pop();
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471 a = pop();
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472 push(SharkValue::create_jlong(
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473 builder()->CreateMul(a->jlong_value(), b->jlong_value()), false));
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474 break;
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475 case Bytecodes::_ldiv:
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476 do_ldiv();
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477 break;
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478 case Bytecodes::_lrem:
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479 do_lrem();
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480 break;
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481 case Bytecodes::_lneg:
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482 a = pop();
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483 push(SharkValue::create_jlong(
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484 builder()->CreateNeg(a->jlong_value()), a->zero_checked()));
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485 break;
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486 case Bytecodes::_lshl:
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487 b = pop();
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488 a = pop();
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489 push(SharkValue::create_jlong(
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490 builder()->CreateShl(
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491 a->jlong_value(),
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492 builder()->CreateIntCast(
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493 builder()->CreateAnd(
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494 b->jint_value(), LLVMValue::jint_constant(0x3f)),
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495 SharkType::jlong_type(), true)), false));
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496 break;
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497 case Bytecodes::_lshr:
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498 b = pop();
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499 a = pop();
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500 push(SharkValue::create_jlong(
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501 builder()->CreateAShr(
|
|
502 a->jlong_value(),
|
|
503 builder()->CreateIntCast(
|
|
504 builder()->CreateAnd(
|
|
505 b->jint_value(), LLVMValue::jint_constant(0x3f)),
|
|
506 SharkType::jlong_type(), true)), false));
|
|
507 break;
|
|
508 case Bytecodes::_lushr:
|
|
509 b = pop();
|
|
510 a = pop();
|
|
511 push(SharkValue::create_jlong(
|
|
512 builder()->CreateLShr(
|
|
513 a->jlong_value(),
|
|
514 builder()->CreateIntCast(
|
|
515 builder()->CreateAnd(
|
|
516 b->jint_value(), LLVMValue::jint_constant(0x3f)),
|
|
517 SharkType::jlong_type(), true)), false));
|
|
518 break;
|
|
519 case Bytecodes::_land:
|
|
520 b = pop();
|
|
521 a = pop();
|
|
522 push(SharkValue::create_jlong(
|
|
523 builder()->CreateAnd(a->jlong_value(), b->jlong_value()), false));
|
|
524 break;
|
|
525 case Bytecodes::_lor:
|
|
526 b = pop();
|
|
527 a = pop();
|
|
528 push(SharkValue::create_jlong(
|
|
529 builder()->CreateOr(a->jlong_value(), b->jlong_value()),
|
|
530 a->zero_checked() && b->zero_checked()));
|
|
531 break;
|
|
532 case Bytecodes::_lxor:
|
|
533 b = pop();
|
|
534 a = pop();
|
|
535 push(SharkValue::create_jlong(
|
|
536 builder()->CreateXor(a->jlong_value(), b->jlong_value()), false));
|
|
537 break;
|
|
538
|
|
539 case Bytecodes::_fadd:
|
|
540 b = pop();
|
|
541 a = pop();
|
|
542 push(SharkValue::create_jfloat(
|
|
543 builder()->CreateFAdd(a->jfloat_value(), b->jfloat_value())));
|
|
544 break;
|
|
545 case Bytecodes::_fsub:
|
|
546 b = pop();
|
|
547 a = pop();
|
|
548 push(SharkValue::create_jfloat(
|
|
549 builder()->CreateFSub(a->jfloat_value(), b->jfloat_value())));
|
|
550 break;
|
|
551 case Bytecodes::_fmul:
|
|
552 b = pop();
|
|
553 a = pop();
|
|
554 push(SharkValue::create_jfloat(
|
|
555 builder()->CreateFMul(a->jfloat_value(), b->jfloat_value())));
|
|
556 break;
|
|
557 case Bytecodes::_fdiv:
|
|
558 b = pop();
|
|
559 a = pop();
|
|
560 push(SharkValue::create_jfloat(
|
|
561 builder()->CreateFDiv(a->jfloat_value(), b->jfloat_value())));
|
|
562 break;
|
|
563 case Bytecodes::_frem:
|
|
564 b = pop();
|
|
565 a = pop();
|
|
566 push(SharkValue::create_jfloat(
|
|
567 builder()->CreateFRem(a->jfloat_value(), b->jfloat_value())));
|
|
568 break;
|
|
569 case Bytecodes::_fneg:
|
|
570 a = pop();
|
|
571 push(SharkValue::create_jfloat(
|
|
572 builder()->CreateFNeg(a->jfloat_value())));
|
|
573 break;
|
|
574
|
|
575 case Bytecodes::_dadd:
|
|
576 b = pop();
|
|
577 a = pop();
|
|
578 push(SharkValue::create_jdouble(
|
|
579 builder()->CreateFAdd(a->jdouble_value(), b->jdouble_value())));
|
|
580 break;
|
|
581 case Bytecodes::_dsub:
|
|
582 b = pop();
|
|
583 a = pop();
|
|
584 push(SharkValue::create_jdouble(
|
|
585 builder()->CreateFSub(a->jdouble_value(), b->jdouble_value())));
|
|
586 break;
|
|
587 case Bytecodes::_dmul:
|
|
588 b = pop();
|
|
589 a = pop();
|
|
590 push(SharkValue::create_jdouble(
|
|
591 builder()->CreateFMul(a->jdouble_value(), b->jdouble_value())));
|
|
592 break;
|
|
593 case Bytecodes::_ddiv:
|
|
594 b = pop();
|
|
595 a = pop();
|
|
596 push(SharkValue::create_jdouble(
|
|
597 builder()->CreateFDiv(a->jdouble_value(), b->jdouble_value())));
|
|
598 break;
|
|
599 case Bytecodes::_drem:
|
|
600 b = pop();
|
|
601 a = pop();
|
|
602 push(SharkValue::create_jdouble(
|
|
603 builder()->CreateFRem(a->jdouble_value(), b->jdouble_value())));
|
|
604 break;
|
|
605 case Bytecodes::_dneg:
|
|
606 a = pop();
|
|
607 push(SharkValue::create_jdouble(
|
|
608 builder()->CreateFNeg(a->jdouble_value())));
|
|
609 break;
|
|
610
|
|
611 case Bytecodes::_iinc:
|
|
612 i = iter()->get_index();
|
|
613 set_local(
|
|
614 i,
|
|
615 SharkValue::create_jint(
|
|
616 builder()->CreateAdd(
|
|
617 LLVMValue::jint_constant(iter()->get_iinc_con()),
|
|
618 local(i)->jint_value()), false));
|
|
619 break;
|
|
620
|
|
621 case Bytecodes::_lcmp:
|
|
622 do_lcmp();
|
|
623 break;
|
|
624
|
|
625 case Bytecodes::_fcmpl:
|
|
626 do_fcmp(false, false);
|
|
627 break;
|
|
628 case Bytecodes::_fcmpg:
|
|
629 do_fcmp(false, true);
|
|
630 break;
|
|
631 case Bytecodes::_dcmpl:
|
|
632 do_fcmp(true, false);
|
|
633 break;
|
|
634 case Bytecodes::_dcmpg:
|
|
635 do_fcmp(true, true);
|
|
636 break;
|
|
637
|
|
638 case Bytecodes::_i2l:
|
|
639 a = pop();
|
|
640 push(SharkValue::create_jlong(
|
|
641 builder()->CreateIntCast(
|
|
642 a->jint_value(), SharkType::jlong_type(), true), a->zero_checked()));
|
|
643 break;
|
|
644 case Bytecodes::_i2f:
|
|
645 push(SharkValue::create_jfloat(
|
|
646 builder()->CreateSIToFP(
|
|
647 pop()->jint_value(), SharkType::jfloat_type())));
|
|
648 break;
|
|
649 case Bytecodes::_i2d:
|
|
650 push(SharkValue::create_jdouble(
|
|
651 builder()->CreateSIToFP(
|
|
652 pop()->jint_value(), SharkType::jdouble_type())));
|
|
653 break;
|
|
654
|
|
655 case Bytecodes::_l2i:
|
|
656 push(SharkValue::create_jint(
|
|
657 builder()->CreateIntCast(
|
|
658 pop()->jlong_value(), SharkType::jint_type(), true), false));
|
|
659 break;
|
|
660 case Bytecodes::_l2f:
|
|
661 push(SharkValue::create_jfloat(
|
|
662 builder()->CreateSIToFP(
|
|
663 pop()->jlong_value(), SharkType::jfloat_type())));
|
|
664 break;
|
|
665 case Bytecodes::_l2d:
|
|
666 push(SharkValue::create_jdouble(
|
|
667 builder()->CreateSIToFP(
|
|
668 pop()->jlong_value(), SharkType::jdouble_type())));
|
|
669 break;
|
|
670
|
|
671 case Bytecodes::_f2i:
|
|
672 push(SharkValue::create_jint(
|
|
673 builder()->CreateCall(
|
|
674 builder()->f2i(), pop()->jfloat_value()), false));
|
|
675 break;
|
|
676 case Bytecodes::_f2l:
|
|
677 push(SharkValue::create_jlong(
|
|
678 builder()->CreateCall(
|
|
679 builder()->f2l(), pop()->jfloat_value()), false));
|
|
680 break;
|
|
681 case Bytecodes::_f2d:
|
|
682 push(SharkValue::create_jdouble(
|
|
683 builder()->CreateFPExt(
|
|
684 pop()->jfloat_value(), SharkType::jdouble_type())));
|
|
685 break;
|
|
686
|
|
687 case Bytecodes::_d2i:
|
|
688 push(SharkValue::create_jint(
|
|
689 builder()->CreateCall(
|
|
690 builder()->d2i(), pop()->jdouble_value()), false));
|
|
691 break;
|
|
692 case Bytecodes::_d2l:
|
|
693 push(SharkValue::create_jlong(
|
|
694 builder()->CreateCall(
|
|
695 builder()->d2l(), pop()->jdouble_value()), false));
|
|
696 break;
|
|
697 case Bytecodes::_d2f:
|
|
698 push(SharkValue::create_jfloat(
|
|
699 builder()->CreateFPTrunc(
|
|
700 pop()->jdouble_value(), SharkType::jfloat_type())));
|
|
701 break;
|
|
702
|
|
703 case Bytecodes::_i2b:
|
|
704 push(SharkValue::create_jint(
|
|
705 builder()->CreateAShr(
|
|
706 builder()->CreateShl(
|
|
707 pop()->jint_value(),
|
|
708 LLVMValue::jint_constant(24)),
|
|
709 LLVMValue::jint_constant(24)), false));
|
|
710 break;
|
|
711 case Bytecodes::_i2c:
|
|
712 push(SharkValue::create_jint(
|
|
713 builder()->CreateAnd(
|
|
714 pop()->jint_value(),
|
|
715 LLVMValue::jint_constant(0xffff)), false));
|
|
716 break;
|
|
717 case Bytecodes::_i2s:
|
|
718 push(SharkValue::create_jint(
|
|
719 builder()->CreateAShr(
|
|
720 builder()->CreateShl(
|
|
721 pop()->jint_value(),
|
|
722 LLVMValue::jint_constant(16)),
|
|
723 LLVMValue::jint_constant(16)), false));
|
|
724 break;
|
|
725
|
|
726 case Bytecodes::_return:
|
|
727 do_return(T_VOID);
|
|
728 break;
|
|
729 case Bytecodes::_ireturn:
|
|
730 do_return(T_INT);
|
|
731 break;
|
|
732 case Bytecodes::_lreturn:
|
|
733 do_return(T_LONG);
|
|
734 break;
|
|
735 case Bytecodes::_freturn:
|
|
736 do_return(T_FLOAT);
|
|
737 break;
|
|
738 case Bytecodes::_dreturn:
|
|
739 do_return(T_DOUBLE);
|
|
740 break;
|
|
741 case Bytecodes::_areturn:
|
|
742 do_return(T_OBJECT);
|
|
743 break;
|
|
744
|
|
745 case Bytecodes::_athrow:
|
|
746 do_athrow();
|
|
747 break;
|
|
748
|
|
749 case Bytecodes::_goto:
|
|
750 case Bytecodes::_goto_w:
|
|
751 do_goto();
|
|
752 break;
|
|
753
|
|
754 case Bytecodes::_jsr:
|
|
755 case Bytecodes::_jsr_w:
|
|
756 do_jsr();
|
|
757 break;
|
|
758
|
|
759 case Bytecodes::_ret:
|
|
760 do_ret();
|
|
761 break;
|
|
762
|
|
763 case Bytecodes::_ifnull:
|
|
764 do_if(ICmpInst::ICMP_EQ, SharkValue::null(), pop());
|
|
765 break;
|
|
766 case Bytecodes::_ifnonnull:
|
|
767 do_if(ICmpInst::ICMP_NE, SharkValue::null(), pop());
|
|
768 break;
|
|
769 case Bytecodes::_if_acmpeq:
|
|
770 b = pop();
|
|
771 a = pop();
|
|
772 do_if(ICmpInst::ICMP_EQ, b, a);
|
|
773 break;
|
|
774 case Bytecodes::_if_acmpne:
|
|
775 b = pop();
|
|
776 a = pop();
|
|
777 do_if(ICmpInst::ICMP_NE, b, a);
|
|
778 break;
|
|
779 case Bytecodes::_ifeq:
|
|
780 do_if(ICmpInst::ICMP_EQ, SharkValue::jint_constant(0), pop());
|
|
781 break;
|
|
782 case Bytecodes::_ifne:
|
|
783 do_if(ICmpInst::ICMP_NE, SharkValue::jint_constant(0), pop());
|
|
784 break;
|
|
785 case Bytecodes::_iflt:
|
|
786 do_if(ICmpInst::ICMP_SLT, SharkValue::jint_constant(0), pop());
|
|
787 break;
|
|
788 case Bytecodes::_ifle:
|
|
789 do_if(ICmpInst::ICMP_SLE, SharkValue::jint_constant(0), pop());
|
|
790 break;
|
|
791 case Bytecodes::_ifgt:
|
|
792 do_if(ICmpInst::ICMP_SGT, SharkValue::jint_constant(0), pop());
|
|
793 break;
|
|
794 case Bytecodes::_ifge:
|
|
795 do_if(ICmpInst::ICMP_SGE, SharkValue::jint_constant(0), pop());
|
|
796 break;
|
|
797 case Bytecodes::_if_icmpeq:
|
|
798 b = pop();
|
|
799 a = pop();
|
|
800 do_if(ICmpInst::ICMP_EQ, b, a);
|
|
801 break;
|
|
802 case Bytecodes::_if_icmpne:
|
|
803 b = pop();
|
|
804 a = pop();
|
|
805 do_if(ICmpInst::ICMP_NE, b, a);
|
|
806 break;
|
|
807 case Bytecodes::_if_icmplt:
|
|
808 b = pop();
|
|
809 a = pop();
|
|
810 do_if(ICmpInst::ICMP_SLT, b, a);
|
|
811 break;
|
|
812 case Bytecodes::_if_icmple:
|
|
813 b = pop();
|
|
814 a = pop();
|
|
815 do_if(ICmpInst::ICMP_SLE, b, a);
|
|
816 break;
|
|
817 case Bytecodes::_if_icmpgt:
|
|
818 b = pop();
|
|
819 a = pop();
|
|
820 do_if(ICmpInst::ICMP_SGT, b, a);
|
|
821 break;
|
|
822 case Bytecodes::_if_icmpge:
|
|
823 b = pop();
|
|
824 a = pop();
|
|
825 do_if(ICmpInst::ICMP_SGE, b, a);
|
|
826 break;
|
|
827
|
|
828 case Bytecodes::_tableswitch:
|
|
829 case Bytecodes::_lookupswitch:
|
|
830 do_switch();
|
|
831 break;
|
|
832
|
|
833 case Bytecodes::_invokestatic:
|
|
834 case Bytecodes::_invokespecial:
|
|
835 case Bytecodes::_invokevirtual:
|
|
836 case Bytecodes::_invokeinterface:
|
|
837 do_call();
|
|
838 break;
|
|
839
|
|
840 case Bytecodes::_instanceof:
|
|
841 // This is a very common construct:
|
|
842 //
|
|
843 // if (object instanceof Klass) {
|
|
844 // something = (Klass) object;
|
|
845 // ...
|
|
846 // }
|
|
847 //
|
|
848 // which gets compiled to something like this:
|
|
849 //
|
|
850 // 28: aload 9
|
|
851 // 30: instanceof <Class Klass>
|
|
852 // 33: ifeq 52
|
|
853 // 36: aload 9
|
|
854 // 38: checkcast <Class Klass>
|
|
855 //
|
|
856 // Handling both bytecodes at once allows us
|
|
857 // to eliminate the checkcast.
|
|
858 if (iter()->next_bci() < limit &&
|
|
859 (iter()->next_bc() == Bytecodes::_ifeq ||
|
|
860 iter()->next_bc() == Bytecodes::_ifne) &&
|
|
861 (!UseLoopSafepoints ||
|
|
862 iter()->next_get_dest() > iter()->next_bci())) {
|
|
863 if (maybe_do_instanceof_if()) {
|
|
864 iter()->next();
|
|
865 if (SharkTraceBytecodes)
|
|
866 tty->print_cr("%4d: %s", bci(), Bytecodes::name(bc()));
|
|
867 break;
|
|
868 }
|
|
869 }
|
|
870 // fall through
|
|
871 case Bytecodes::_checkcast:
|
|
872 do_instance_check();
|
|
873 break;
|
|
874
|
|
875 case Bytecodes::_new:
|
|
876 do_new();
|
|
877 break;
|
|
878 case Bytecodes::_newarray:
|
|
879 do_newarray();
|
|
880 break;
|
|
881 case Bytecodes::_anewarray:
|
|
882 do_anewarray();
|
|
883 break;
|
|
884 case Bytecodes::_multianewarray:
|
|
885 do_multianewarray();
|
|
886 break;
|
|
887
|
|
888 case Bytecodes::_monitorenter:
|
|
889 do_monitorenter();
|
|
890 break;
|
|
891 case Bytecodes::_monitorexit:
|
|
892 do_monitorexit();
|
|
893 break;
|
|
894
|
|
895 default:
|
|
896 ShouldNotReachHere();
|
|
897 }
|
|
898 }
|
|
899 }
|
|
900
|
|
901 SharkState* SharkBlock::initial_current_state() {
|
|
902 return entry_state()->copy();
|
|
903 }
|
|
904
|
|
905 int SharkBlock::switch_default_dest() {
|
|
906 return iter()->get_dest_table(0);
|
|
907 }
|
|
908
|
|
909 int SharkBlock::switch_table_length() {
|
|
910 switch(bc()) {
|
|
911 case Bytecodes::_tableswitch:
|
|
912 return iter()->get_int_table(2) - iter()->get_int_table(1) + 1;
|
|
913
|
|
914 case Bytecodes::_lookupswitch:
|
|
915 return iter()->get_int_table(1);
|
|
916
|
|
917 default:
|
|
918 ShouldNotReachHere();
|
|
919 }
|
|
920 }
|
|
921
|
|
922 int SharkBlock::switch_key(int i) {
|
|
923 switch(bc()) {
|
|
924 case Bytecodes::_tableswitch:
|
|
925 return iter()->get_int_table(1) + i;
|
|
926
|
|
927 case Bytecodes::_lookupswitch:
|
|
928 return iter()->get_int_table(2 + 2 * i);
|
|
929
|
|
930 default:
|
|
931 ShouldNotReachHere();
|
|
932 }
|
|
933 }
|
|
934
|
|
935 int SharkBlock::switch_dest(int i) {
|
|
936 switch(bc()) {
|
|
937 case Bytecodes::_tableswitch:
|
|
938 return iter()->get_dest_table(i + 3);
|
|
939
|
|
940 case Bytecodes::_lookupswitch:
|
|
941 return iter()->get_dest_table(2 + 2 * i + 1);
|
|
942
|
|
943 default:
|
|
944 ShouldNotReachHere();
|
|
945 }
|
|
946 }
|
|
947
|
|
948 void SharkBlock::do_div_or_rem(bool is_long, bool is_rem) {
|
|
949 SharkValue *sb = pop();
|
|
950 SharkValue *sa = pop();
|
|
951
|
|
952 check_divide_by_zero(sb);
|
|
953
|
|
954 Value *a, *b, *p, *q;
|
|
955 if (is_long) {
|
|
956 a = sa->jlong_value();
|
|
957 b = sb->jlong_value();
|
|
958 p = LLVMValue::jlong_constant(0x8000000000000000LL);
|
|
959 q = LLVMValue::jlong_constant(-1);
|
|
960 }
|
|
961 else {
|
|
962 a = sa->jint_value();
|
|
963 b = sb->jint_value();
|
|
964 p = LLVMValue::jint_constant(0x80000000);
|
|
965 q = LLVMValue::jint_constant(-1);
|
|
966 }
|
|
967
|
|
968 BasicBlock *ip = builder()->GetBlockInsertionPoint();
|
|
969 BasicBlock *special_case = builder()->CreateBlock(ip, "special_case");
|
|
970 BasicBlock *general_case = builder()->CreateBlock(ip, "general_case");
|
|
971 BasicBlock *done = builder()->CreateBlock(ip, "done");
|
|
972
|
|
973 builder()->CreateCondBr(
|
|
974 builder()->CreateAnd(
|
|
975 builder()->CreateICmpEQ(a, p),
|
|
976 builder()->CreateICmpEQ(b, q)),
|
|
977 special_case, general_case);
|
|
978
|
|
979 builder()->SetInsertPoint(special_case);
|
|
980 Value *special_result;
|
|
981 if (is_rem) {
|
|
982 if (is_long)
|
|
983 special_result = LLVMValue::jlong_constant(0);
|
|
984 else
|
|
985 special_result = LLVMValue::jint_constant(0);
|
|
986 }
|
|
987 else {
|
|
988 special_result = a;
|
|
989 }
|
|
990 builder()->CreateBr(done);
|
|
991
|
|
992 builder()->SetInsertPoint(general_case);
|
|
993 Value *general_result;
|
|
994 if (is_rem)
|
|
995 general_result = builder()->CreateSRem(a, b);
|
|
996 else
|
|
997 general_result = builder()->CreateSDiv(a, b);
|
|
998 builder()->CreateBr(done);
|
|
999
|
|
1000 builder()->SetInsertPoint(done);
|
|
1001 PHINode *result;
|
|
1002 if (is_long)
|
|
1003 result = builder()->CreatePHI(SharkType::jlong_type(), "result");
|
|
1004 else
|
|
1005 result = builder()->CreatePHI(SharkType::jint_type(), "result");
|
|
1006 result->addIncoming(special_result, special_case);
|
|
1007 result->addIncoming(general_result, general_case);
|
|
1008
|
|
1009 if (is_long)
|
|
1010 push(SharkValue::create_jlong(result, false));
|
|
1011 else
|
|
1012 push(SharkValue::create_jint(result, false));
|
|
1013 }
|
|
1014
|
|
1015 void SharkBlock::do_field_access(bool is_get, bool is_field) {
|
|
1016 bool will_link;
|
|
1017 ciField *field = iter()->get_field(will_link);
|
|
1018 assert(will_link, "typeflow responsibility");
|
|
1019 assert(is_field != field->is_static(), "mismatch");
|
|
1020
|
|
1021 // Pop the value off the stack where necessary
|
|
1022 SharkValue *value = NULL;
|
|
1023 if (!is_get)
|
|
1024 value = pop();
|
|
1025
|
|
1026 // Find the object we're accessing, if necessary
|
|
1027 Value *object = NULL;
|
|
1028 if (is_field) {
|
|
1029 SharkValue *value = pop();
|
|
1030 check_null(value);
|
|
1031 object = value->generic_value();
|
|
1032 }
|
|
1033 if (is_get && field->is_constant()) {
|
|
1034 SharkConstant *constant = SharkConstant::for_field(iter());
|
|
1035 if (constant->is_loaded())
|
|
1036 value = constant->value(builder());
|
|
1037 }
|
|
1038 if (!is_get || value == NULL) {
|
|
1039 if (!is_field)
|
|
1040 object = builder()->CreateInlineOop(field->holder());
|
|
1041
|
|
1042 BasicType basic_type = field->type()->basic_type();
|
|
1043 const Type *stack_type = SharkType::to_stackType(basic_type);
|
|
1044 const Type *field_type = SharkType::to_arrayType(basic_type);
|
|
1045
|
|
1046 Value *addr = builder()->CreateAddressOfStructEntry(
|
|
1047 object, in_ByteSize(field->offset_in_bytes()),
|
|
1048 PointerType::getUnqual(field_type),
|
|
1049 "addr");
|
|
1050
|
|
1051 // Do the access
|
|
1052 if (is_get) {
|
|
1053 Value *field_value = builder()->CreateLoad(addr);
|
|
1054
|
|
1055 if (field_type != stack_type) {
|
|
1056 field_value = builder()->CreateIntCast(
|
|
1057 field_value, stack_type, basic_type != T_CHAR);
|
|
1058 }
|
|
1059
|
|
1060 value = SharkValue::create_generic(field->type(), field_value, false);
|
|
1061 }
|
|
1062 else {
|
|
1063 Value *field_value = value->generic_value();
|
|
1064
|
|
1065 if (field_type != stack_type) {
|
|
1066 field_value = builder()->CreateIntCast(
|
|
1067 field_value, field_type, basic_type != T_CHAR);
|
|
1068 }
|
|
1069
|
|
1070 builder()->CreateStore(field_value, addr);
|
|
1071
|
|
1072 if (!field->type()->is_primitive_type())
|
|
1073 builder()->CreateUpdateBarrierSet(oopDesc::bs(), addr);
|
|
1074
|
|
1075 if (field->is_volatile())
|
|
1076 builder()->CreateMemoryBarrier(SharkBuilder::BARRIER_STORELOAD);
|
|
1077 }
|
|
1078 }
|
|
1079
|
|
1080 // Push the value onto the stack where necessary
|
|
1081 if (is_get)
|
|
1082 push(value);
|
|
1083 }
|
|
1084
|
|
1085 void SharkBlock::do_lcmp() {
|
|
1086 Value *b = pop()->jlong_value();
|
|
1087 Value *a = pop()->jlong_value();
|
|
1088
|
|
1089 BasicBlock *ip = builder()->GetBlockInsertionPoint();
|
|
1090 BasicBlock *ne = builder()->CreateBlock(ip, "lcmp_ne");
|
|
1091 BasicBlock *lt = builder()->CreateBlock(ip, "lcmp_lt");
|
|
1092 BasicBlock *gt = builder()->CreateBlock(ip, "lcmp_gt");
|
|
1093 BasicBlock *done = builder()->CreateBlock(ip, "done");
|
|
1094
|
|
1095 BasicBlock *eq = builder()->GetInsertBlock();
|
|
1096 builder()->CreateCondBr(builder()->CreateICmpEQ(a, b), done, ne);
|
|
1097
|
|
1098 builder()->SetInsertPoint(ne);
|
|
1099 builder()->CreateCondBr(builder()->CreateICmpSLT(a, b), lt, gt);
|
|
1100
|
|
1101 builder()->SetInsertPoint(lt);
|
|
1102 builder()->CreateBr(done);
|
|
1103
|
|
1104 builder()->SetInsertPoint(gt);
|
|
1105 builder()->CreateBr(done);
|
|
1106
|
|
1107 builder()->SetInsertPoint(done);
|
|
1108 PHINode *result = builder()->CreatePHI(SharkType::jint_type(), "result");
|
|
1109 result->addIncoming(LLVMValue::jint_constant(-1), lt);
|
|
1110 result->addIncoming(LLVMValue::jint_constant(0), eq);
|
|
1111 result->addIncoming(LLVMValue::jint_constant(1), gt);
|
|
1112
|
|
1113 push(SharkValue::create_jint(result, false));
|
|
1114 }
|
|
1115
|
|
1116 void SharkBlock::do_fcmp(bool is_double, bool unordered_is_greater) {
|
|
1117 Value *a, *b;
|
|
1118 if (is_double) {
|
|
1119 b = pop()->jdouble_value();
|
|
1120 a = pop()->jdouble_value();
|
|
1121 }
|
|
1122 else {
|
|
1123 b = pop()->jfloat_value();
|
|
1124 a = pop()->jfloat_value();
|
|
1125 }
|
|
1126
|
|
1127 BasicBlock *ip = builder()->GetBlockInsertionPoint();
|
|
1128 BasicBlock *ordered = builder()->CreateBlock(ip, "ordered");
|
|
1129 BasicBlock *ge = builder()->CreateBlock(ip, "fcmp_ge");
|
|
1130 BasicBlock *lt = builder()->CreateBlock(ip, "fcmp_lt");
|
|
1131 BasicBlock *eq = builder()->CreateBlock(ip, "fcmp_eq");
|
|
1132 BasicBlock *gt = builder()->CreateBlock(ip, "fcmp_gt");
|
|
1133 BasicBlock *done = builder()->CreateBlock(ip, "done");
|
|
1134
|
|
1135 builder()->CreateCondBr(
|
|
1136 builder()->CreateFCmpUNO(a, b),
|
|
1137 unordered_is_greater ? gt : lt, ordered);
|
|
1138
|
|
1139 builder()->SetInsertPoint(ordered);
|
|
1140 builder()->CreateCondBr(builder()->CreateFCmpULT(a, b), lt, ge);
|
|
1141
|
|
1142 builder()->SetInsertPoint(ge);
|
|
1143 builder()->CreateCondBr(builder()->CreateFCmpUGT(a, b), gt, eq);
|
|
1144
|
|
1145 builder()->SetInsertPoint(lt);
|
|
1146 builder()->CreateBr(done);
|
|
1147
|
|
1148 builder()->SetInsertPoint(gt);
|
|
1149 builder()->CreateBr(done);
|
|
1150
|
|
1151 builder()->SetInsertPoint(eq);
|
|
1152 builder()->CreateBr(done);
|
|
1153
|
|
1154 builder()->SetInsertPoint(done);
|
|
1155 PHINode *result = builder()->CreatePHI(SharkType::jint_type(), "result");
|
|
1156 result->addIncoming(LLVMValue::jint_constant(-1), lt);
|
|
1157 result->addIncoming(LLVMValue::jint_constant(0), eq);
|
|
1158 result->addIncoming(LLVMValue::jint_constant(1), gt);
|
|
1159
|
|
1160 push(SharkValue::create_jint(result, false));
|
|
1161 }
|
|
1162
|
|
1163 void SharkBlock::emit_IR() {
|
|
1164 ShouldNotCallThis();
|
|
1165 }
|
|
1166
|
|
1167 SharkState* SharkBlock::entry_state() {
|
|
1168 ShouldNotCallThis();
|
|
1169 }
|
|
1170
|
|
1171 void SharkBlock::do_zero_check(SharkValue* value) {
|
|
1172 ShouldNotCallThis();
|
|
1173 }
|
|
1174
|
|
1175 void SharkBlock::maybe_add_backedge_safepoint() {
|
|
1176 ShouldNotCallThis();
|
|
1177 }
|
|
1178
|
|
1179 bool SharkBlock::has_trap() {
|
|
1180 return false;
|
|
1181 }
|
|
1182
|
|
1183 int SharkBlock::trap_request() {
|
|
1184 ShouldNotCallThis();
|
|
1185 }
|
|
1186
|
|
1187 int SharkBlock::trap_bci() {
|
|
1188 ShouldNotCallThis();
|
|
1189 }
|
|
1190
|
|
1191 void SharkBlock::do_trap(int trap_request) {
|
|
1192 ShouldNotCallThis();
|
|
1193 }
|
|
1194
|
|
1195 void SharkBlock::do_arraylength() {
|
|
1196 ShouldNotCallThis();
|
|
1197 }
|
|
1198
|
|
1199 void SharkBlock::do_aload(BasicType basic_type) {
|
|
1200 ShouldNotCallThis();
|
|
1201 }
|
|
1202
|
|
1203 void SharkBlock::do_astore(BasicType basic_type) {
|
|
1204 ShouldNotCallThis();
|
|
1205 }
|
|
1206
|
|
1207 void SharkBlock::do_return(BasicType type) {
|
|
1208 ShouldNotCallThis();
|
|
1209 }
|
|
1210
|
|
1211 void SharkBlock::do_athrow() {
|
|
1212 ShouldNotCallThis();
|
|
1213 }
|
|
1214
|
|
1215 void SharkBlock::do_goto() {
|
|
1216 ShouldNotCallThis();
|
|
1217 }
|
|
1218
|
|
1219 void SharkBlock::do_jsr() {
|
|
1220 ShouldNotCallThis();
|
|
1221 }
|
|
1222
|
|
1223 void SharkBlock::do_ret() {
|
|
1224 ShouldNotCallThis();
|
|
1225 }
|
|
1226
|
|
1227 void SharkBlock::do_if(ICmpInst::Predicate p, SharkValue* b, SharkValue* a) {
|
|
1228 ShouldNotCallThis();
|
|
1229 }
|
|
1230
|
|
1231 void SharkBlock::do_switch() {
|
|
1232 ShouldNotCallThis();
|
|
1233 }
|
|
1234
|
|
1235 void SharkBlock::do_call() {
|
|
1236 ShouldNotCallThis();
|
|
1237 }
|
|
1238
|
|
1239 void SharkBlock::do_instance_check() {
|
|
1240 ShouldNotCallThis();
|
|
1241 }
|
|
1242
|
|
1243 bool SharkBlock::maybe_do_instanceof_if() {
|
|
1244 ShouldNotCallThis();
|
|
1245 }
|
|
1246
|
|
1247 void SharkBlock::do_new() {
|
|
1248 ShouldNotCallThis();
|
|
1249 }
|
|
1250
|
|
1251 void SharkBlock::do_newarray() {
|
|
1252 ShouldNotCallThis();
|
|
1253 }
|
|
1254
|
|
1255 void SharkBlock::do_anewarray() {
|
|
1256 ShouldNotCallThis();
|
|
1257 }
|
|
1258
|
|
1259 void SharkBlock::do_multianewarray() {
|
|
1260 ShouldNotCallThis();
|
|
1261 }
|
|
1262
|
|
1263 void SharkBlock::do_monitorenter() {
|
|
1264 ShouldNotCallThis();
|
|
1265 }
|
|
1266
|
|
1267 void SharkBlock::do_monitorexit() {
|
|
1268 ShouldNotCallThis();
|
|
1269 }
|