1692
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1 /*
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2 * Copyright (c) 1999, 2007, Oracle and/or its affiliates. All rights reserved.
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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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26 #include "incls/_precompiled.incl"
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27 #include "incls/_sharkBlock.cpp.incl"
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28
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29 using namespace llvm;
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30
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31 void SharkBlock::parse_bytecode(int start, int limit) {
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32 SharkValue *a, *b, *c, *d;
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33 int i;
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34
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35 // Ensure the current state is initialized before we emit any code,
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36 // so that any setup code for the state is at the start of the block
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37 current_state();
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38
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39 // Parse the bytecodes
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40 iter()->reset_to_bci(start);
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41 while (iter()->next_bci() < limit) {
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42 NOT_PRODUCT(a = b = c = d = NULL);
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43 iter()->next();
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44
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45 if (SharkTraceBytecodes)
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46 tty->print_cr("%4d: %s", bci(), Bytecodes::name(bc()));
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47
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48 if (has_trap() && trap_bci() == bci()) {
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49 do_trap(trap_request());
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50 return;
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51 }
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52
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53 if (UseLoopSafepoints) {
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54 // XXX if a lcmp is followed by an if_?? then C2 maybe-inserts
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55 // the safepoint before the lcmp rather than before the if.
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56 // Maybe we should do this too. See parse2.cpp for details.
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57 switch (bc()) {
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58 case Bytecodes::_goto:
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59 case Bytecodes::_ifnull:
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60 case Bytecodes::_ifnonnull:
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61 case Bytecodes::_if_acmpeq:
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62 case Bytecodes::_if_acmpne:
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63 case Bytecodes::_ifeq:
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64 case Bytecodes::_ifne:
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65 case Bytecodes::_iflt:
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66 case Bytecodes::_ifle:
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67 case Bytecodes::_ifgt:
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68 case Bytecodes::_ifge:
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69 case Bytecodes::_if_icmpeq:
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70 case Bytecodes::_if_icmpne:
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71 case Bytecodes::_if_icmplt:
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72 case Bytecodes::_if_icmple:
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73 case Bytecodes::_if_icmpgt:
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74 case Bytecodes::_if_icmpge:
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75 if (iter()->get_dest() <= bci())
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76 maybe_add_backedge_safepoint();
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77 break;
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78
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79 case Bytecodes::_goto_w:
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80 if (iter()->get_far_dest() <= bci())
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81 maybe_add_backedge_safepoint();
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82 break;
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83
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84 case Bytecodes::_tableswitch:
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85 case Bytecodes::_lookupswitch:
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86 if (switch_default_dest() <= bci()) {
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87 maybe_add_backedge_safepoint();
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88 break;
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89 }
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90 int len = switch_table_length();
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91 for (int i = 0; i < len; i++) {
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92 if (switch_dest(i) <= bci()) {
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93 maybe_add_backedge_safepoint();
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94 break;
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95 }
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96 }
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97 break;
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98 }
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99 }
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100
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101 switch (bc()) {
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102 case Bytecodes::_nop:
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103 break;
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104
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105 case Bytecodes::_aconst_null:
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106 push(SharkValue::null());
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107 break;
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108
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109 case Bytecodes::_iconst_m1:
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110 push(SharkValue::jint_constant(-1));
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111 break;
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112 case Bytecodes::_iconst_0:
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113 push(SharkValue::jint_constant(0));
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114 break;
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115 case Bytecodes::_iconst_1:
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116 push(SharkValue::jint_constant(1));
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117 break;
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118 case Bytecodes::_iconst_2:
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119 push(SharkValue::jint_constant(2));
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120 break;
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121 case Bytecodes::_iconst_3:
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122 push(SharkValue::jint_constant(3));
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123 break;
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124 case Bytecodes::_iconst_4:
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125 push(SharkValue::jint_constant(4));
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126 break;
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127 case Bytecodes::_iconst_5:
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128 push(SharkValue::jint_constant(5));
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129 break;
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130
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131 case Bytecodes::_lconst_0:
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132 push(SharkValue::jlong_constant(0));
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133 break;
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134 case Bytecodes::_lconst_1:
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135 push(SharkValue::jlong_constant(1));
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136 break;
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137
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138 case Bytecodes::_fconst_0:
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139 push(SharkValue::jfloat_constant(0));
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140 break;
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141 case Bytecodes::_fconst_1:
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142 push(SharkValue::jfloat_constant(1));
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143 break;
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144 case Bytecodes::_fconst_2:
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145 push(SharkValue::jfloat_constant(2));
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146 break;
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147
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148 case Bytecodes::_dconst_0:
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149 push(SharkValue::jdouble_constant(0));
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150 break;
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151 case Bytecodes::_dconst_1:
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152 push(SharkValue::jdouble_constant(1));
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153 break;
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154
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155 case Bytecodes::_bipush:
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156 push(SharkValue::jint_constant(iter()->get_constant_u1()));
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157 break;
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158 case Bytecodes::_sipush:
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159 push(SharkValue::jint_constant(iter()->get_constant_u2()));
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160 break;
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161
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162 case Bytecodes::_ldc:
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163 case Bytecodes::_ldc_w:
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164 case Bytecodes::_ldc2_w:
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165 push(SharkConstant::for_ldc(iter())->value(builder()));
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166 break;
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167
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168 case Bytecodes::_iload_0:
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169 case Bytecodes::_lload_0:
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170 case Bytecodes::_fload_0:
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171 case Bytecodes::_dload_0:
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172 case Bytecodes::_aload_0:
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173 push(local(0));
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174 break;
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175 case Bytecodes::_iload_1:
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176 case Bytecodes::_lload_1:
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177 case Bytecodes::_fload_1:
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178 case Bytecodes::_dload_1:
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179 case Bytecodes::_aload_1:
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180 push(local(1));
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181 break;
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182 case Bytecodes::_iload_2:
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183 case Bytecodes::_lload_2:
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184 case Bytecodes::_fload_2:
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185 case Bytecodes::_dload_2:
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186 case Bytecodes::_aload_2:
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187 push(local(2));
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188 break;
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189 case Bytecodes::_iload_3:
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190 case Bytecodes::_lload_3:
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191 case Bytecodes::_fload_3:
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192 case Bytecodes::_dload_3:
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193 case Bytecodes::_aload_3:
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194 push(local(3));
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195 break;
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196 case Bytecodes::_iload:
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197 case Bytecodes::_lload:
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198 case Bytecodes::_fload:
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199 case Bytecodes::_dload:
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200 case Bytecodes::_aload:
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201 push(local(iter()->get_index()));
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202 break;
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203
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204 case Bytecodes::_baload:
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205 do_aload(T_BYTE);
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206 break;
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207 case Bytecodes::_caload:
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208 do_aload(T_CHAR);
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209 break;
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210 case Bytecodes::_saload:
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211 do_aload(T_SHORT);
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212 break;
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213 case Bytecodes::_iaload:
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214 do_aload(T_INT);
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215 break;
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216 case Bytecodes::_laload:
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217 do_aload(T_LONG);
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218 break;
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219 case Bytecodes::_faload:
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220 do_aload(T_FLOAT);
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221 break;
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222 case Bytecodes::_daload:
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223 do_aload(T_DOUBLE);
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224 break;
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225 case Bytecodes::_aaload:
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226 do_aload(T_OBJECT);
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227 break;
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228
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229 case Bytecodes::_istore_0:
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230 case Bytecodes::_lstore_0:
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231 case Bytecodes::_fstore_0:
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232 case Bytecodes::_dstore_0:
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233 case Bytecodes::_astore_0:
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234 set_local(0, pop());
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235 break;
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236 case Bytecodes::_istore_1:
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237 case Bytecodes::_lstore_1:
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238 case Bytecodes::_fstore_1:
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239 case Bytecodes::_dstore_1:
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240 case Bytecodes::_astore_1:
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241 set_local(1, pop());
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242 break;
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243 case Bytecodes::_istore_2:
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244 case Bytecodes::_lstore_2:
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245 case Bytecodes::_fstore_2:
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246 case Bytecodes::_dstore_2:
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247 case Bytecodes::_astore_2:
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248 set_local(2, pop());
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249 break;
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250 case Bytecodes::_istore_3:
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251 case Bytecodes::_lstore_3:
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252 case Bytecodes::_fstore_3:
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253 case Bytecodes::_dstore_3:
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254 case Bytecodes::_astore_3:
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255 set_local(3, pop());
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256 break;
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257 case Bytecodes::_istore:
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258 case Bytecodes::_lstore:
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259 case Bytecodes::_fstore:
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260 case Bytecodes::_dstore:
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261 case Bytecodes::_astore:
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262 set_local(iter()->get_index(), pop());
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263 break;
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264
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265 case Bytecodes::_bastore:
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266 do_astore(T_BYTE);
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267 break;
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268 case Bytecodes::_castore:
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269 do_astore(T_CHAR);
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270 break;
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271 case Bytecodes::_sastore:
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272 do_astore(T_SHORT);
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273 break;
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274 case Bytecodes::_iastore:
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275 do_astore(T_INT);
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276 break;
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277 case Bytecodes::_lastore:
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278 do_astore(T_LONG);
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279 break;
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280 case Bytecodes::_fastore:
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281 do_astore(T_FLOAT);
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282 break;
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283 case Bytecodes::_dastore:
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284 do_astore(T_DOUBLE);
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285 break;
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286 case Bytecodes::_aastore:
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287 do_astore(T_OBJECT);
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288 break;
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289
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290 case Bytecodes::_pop:
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291 xpop();
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292 break;
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293 case Bytecodes::_pop2:
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294 xpop();
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295 xpop();
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296 break;
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297 case Bytecodes::_swap:
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298 a = xpop();
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299 b = xpop();
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300 xpush(a);
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301 xpush(b);
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302 break;
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303 case Bytecodes::_dup:
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304 a = xpop();
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305 xpush(a);
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306 xpush(a);
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307 break;
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308 case Bytecodes::_dup_x1:
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309 a = xpop();
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310 b = xpop();
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311 xpush(a);
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312 xpush(b);
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313 xpush(a);
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314 break;
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315 case Bytecodes::_dup_x2:
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316 a = xpop();
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317 b = xpop();
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318 c = xpop();
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319 xpush(a);
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320 xpush(c);
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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::_dup2:
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325 a = xpop();
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326 b = xpop();
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327 xpush(b);
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328 xpush(a);
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329 xpush(b);
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330 xpush(a);
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331 break;
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332 case Bytecodes::_dup2_x1:
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333 a = xpop();
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334 b = xpop();
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335 c = xpop();
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336 xpush(b);
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337 xpush(a);
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338 xpush(c);
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339 xpush(b);
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340 xpush(a);
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341 break;
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342 case Bytecodes::_dup2_x2:
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343 a = xpop();
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344 b = xpop();
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345 c = xpop();
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346 d = xpop();
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347 xpush(b);
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348 xpush(a);
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349 xpush(d);
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350 xpush(c);
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351 xpush(b);
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352 xpush(a);
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353 break;
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354
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355 case Bytecodes::_arraylength:
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356 do_arraylength();
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357 break;
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358
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359 case Bytecodes::_getfield:
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360 do_getfield();
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361 break;
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362 case Bytecodes::_getstatic:
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363 do_getstatic();
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364 break;
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365 case Bytecodes::_putfield:
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366 do_putfield();
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367 break;
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368 case Bytecodes::_putstatic:
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369 do_putstatic();
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370 break;
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371
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372 case Bytecodes::_iadd:
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373 b = pop();
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374 a = pop();
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375 push(SharkValue::create_jint(
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376 builder()->CreateAdd(a->jint_value(), b->jint_value()), false));
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377 break;
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378 case Bytecodes::_isub:
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379 b = pop();
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380 a = pop();
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381 push(SharkValue::create_jint(
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382 builder()->CreateSub(a->jint_value(), b->jint_value()), false));
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383 break;
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384 case Bytecodes::_imul:
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385 b = pop();
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386 a = pop();
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387 push(SharkValue::create_jint(
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388 builder()->CreateMul(a->jint_value(), b->jint_value()), false));
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389 break;
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390 case Bytecodes::_idiv:
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391 do_idiv();
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392 break;
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393 case Bytecodes::_irem:
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394 do_irem();
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395 break;
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396 case Bytecodes::_ineg:
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397 a = pop();
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398 push(SharkValue::create_jint(
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399 builder()->CreateNeg(a->jint_value()), a->zero_checked()));
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400 break;
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401 case Bytecodes::_ishl:
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402 b = pop();
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403 a = pop();
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404 push(SharkValue::create_jint(
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405 builder()->CreateShl(
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406 a->jint_value(),
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407 builder()->CreateAnd(
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408 b->jint_value(), LLVMValue::jint_constant(0x1f))), false));
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409 break;
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410 case Bytecodes::_ishr:
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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()->CreateAShr(
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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::_iushr:
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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()->CreateLShr(
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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::_iand:
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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()->CreateAnd(a->jint_value(), b->jint_value()), false));
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433 break;
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434 case Bytecodes::_ior:
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435 b = pop();
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436 a = pop();
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437 push(SharkValue::create_jint(
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438 builder()->CreateOr(a->jint_value(), b->jint_value()),
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439 a->zero_checked() && b->zero_checked()));
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440 break;
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441 case Bytecodes::_ixor:
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442 b = pop();
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443 a = pop();
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444 push(SharkValue::create_jint(
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445 builder()->CreateXor(a->jint_value(), b->jint_value()), false));
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446 break;
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447
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448 case Bytecodes::_ladd:
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449 b = pop();
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450 a = pop();
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451 push(SharkValue::create_jlong(
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452 builder()->CreateAdd(a->jlong_value(), b->jlong_value()), false));
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453 break;
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454 case Bytecodes::_lsub:
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455 b = pop();
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456 a = pop();
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457 push(SharkValue::create_jlong(
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458 builder()->CreateSub(a->jlong_value(), b->jlong_value()), false));
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459 break;
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460 case Bytecodes::_lmul:
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461 b = pop();
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462 a = pop();
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463 push(SharkValue::create_jlong(
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464 builder()->CreateMul(a->jlong_value(), b->jlong_value()), false));
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465 break;
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466 case Bytecodes::_ldiv:
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467 do_ldiv();
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468 break;
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469 case Bytecodes::_lrem:
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470 do_lrem();
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471 break;
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472 case Bytecodes::_lneg:
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473 a = pop();
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474 push(SharkValue::create_jlong(
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475 builder()->CreateNeg(a->jlong_value()), a->zero_checked()));
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476 break;
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477 case Bytecodes::_lshl:
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478 b = pop();
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479 a = pop();
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480 push(SharkValue::create_jlong(
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481 builder()->CreateShl(
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482 a->jlong_value(),
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483 builder()->CreateIntCast(
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484 builder()->CreateAnd(
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485 b->jint_value(), LLVMValue::jint_constant(0x3f)),
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486 SharkType::jlong_type(), true)), false));
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487 break;
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488 case Bytecodes::_lshr:
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489 b = pop();
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490 a = pop();
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491 push(SharkValue::create_jlong(
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492 builder()->CreateAShr(
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493 a->jlong_value(),
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494 builder()->CreateIntCast(
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495 builder()->CreateAnd(
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496 b->jint_value(), LLVMValue::jint_constant(0x3f)),
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497 SharkType::jlong_type(), true)), false));
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498 break;
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499 case Bytecodes::_lushr:
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500 b = pop();
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501 a = pop();
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502 push(SharkValue::create_jlong(
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503 builder()->CreateLShr(
|
|
504 a->jlong_value(),
|
|
505 builder()->CreateIntCast(
|
|
506 builder()->CreateAnd(
|
|
507 b->jint_value(), LLVMValue::jint_constant(0x3f)),
|
|
508 SharkType::jlong_type(), true)), false));
|
|
509 break;
|
|
510 case Bytecodes::_land:
|
|
511 b = pop();
|
|
512 a = pop();
|
|
513 push(SharkValue::create_jlong(
|
|
514 builder()->CreateAnd(a->jlong_value(), b->jlong_value()), false));
|
|
515 break;
|
|
516 case Bytecodes::_lor:
|
|
517 b = pop();
|
|
518 a = pop();
|
|
519 push(SharkValue::create_jlong(
|
|
520 builder()->CreateOr(a->jlong_value(), b->jlong_value()),
|
|
521 a->zero_checked() && b->zero_checked()));
|
|
522 break;
|
|
523 case Bytecodes::_lxor:
|
|
524 b = pop();
|
|
525 a = pop();
|
|
526 push(SharkValue::create_jlong(
|
|
527 builder()->CreateXor(a->jlong_value(), b->jlong_value()), false));
|
|
528 break;
|
|
529
|
|
530 case Bytecodes::_fadd:
|
|
531 b = pop();
|
|
532 a = pop();
|
|
533 push(SharkValue::create_jfloat(
|
|
534 builder()->CreateFAdd(a->jfloat_value(), b->jfloat_value())));
|
|
535 break;
|
|
536 case Bytecodes::_fsub:
|
|
537 b = pop();
|
|
538 a = pop();
|
|
539 push(SharkValue::create_jfloat(
|
|
540 builder()->CreateFSub(a->jfloat_value(), b->jfloat_value())));
|
|
541 break;
|
|
542 case Bytecodes::_fmul:
|
|
543 b = pop();
|
|
544 a = pop();
|
|
545 push(SharkValue::create_jfloat(
|
|
546 builder()->CreateFMul(a->jfloat_value(), b->jfloat_value())));
|
|
547 break;
|
|
548 case Bytecodes::_fdiv:
|
|
549 b = pop();
|
|
550 a = pop();
|
|
551 push(SharkValue::create_jfloat(
|
|
552 builder()->CreateFDiv(a->jfloat_value(), b->jfloat_value())));
|
|
553 break;
|
|
554 case Bytecodes::_frem:
|
|
555 b = pop();
|
|
556 a = pop();
|
|
557 push(SharkValue::create_jfloat(
|
|
558 builder()->CreateFRem(a->jfloat_value(), b->jfloat_value())));
|
|
559 break;
|
|
560 case Bytecodes::_fneg:
|
|
561 a = pop();
|
|
562 push(SharkValue::create_jfloat(
|
|
563 builder()->CreateFNeg(a->jfloat_value())));
|
|
564 break;
|
|
565
|
|
566 case Bytecodes::_dadd:
|
|
567 b = pop();
|
|
568 a = pop();
|
|
569 push(SharkValue::create_jdouble(
|
|
570 builder()->CreateFAdd(a->jdouble_value(), b->jdouble_value())));
|
|
571 break;
|
|
572 case Bytecodes::_dsub:
|
|
573 b = pop();
|
|
574 a = pop();
|
|
575 push(SharkValue::create_jdouble(
|
|
576 builder()->CreateFSub(a->jdouble_value(), b->jdouble_value())));
|
|
577 break;
|
|
578 case Bytecodes::_dmul:
|
|
579 b = pop();
|
|
580 a = pop();
|
|
581 push(SharkValue::create_jdouble(
|
|
582 builder()->CreateFMul(a->jdouble_value(), b->jdouble_value())));
|
|
583 break;
|
|
584 case Bytecodes::_ddiv:
|
|
585 b = pop();
|
|
586 a = pop();
|
|
587 push(SharkValue::create_jdouble(
|
|
588 builder()->CreateFDiv(a->jdouble_value(), b->jdouble_value())));
|
|
589 break;
|
|
590 case Bytecodes::_drem:
|
|
591 b = pop();
|
|
592 a = pop();
|
|
593 push(SharkValue::create_jdouble(
|
|
594 builder()->CreateFRem(a->jdouble_value(), b->jdouble_value())));
|
|
595 break;
|
|
596 case Bytecodes::_dneg:
|
|
597 a = pop();
|
|
598 push(SharkValue::create_jdouble(
|
|
599 builder()->CreateFNeg(a->jdouble_value())));
|
|
600 break;
|
|
601
|
|
602 case Bytecodes::_iinc:
|
|
603 i = iter()->get_index();
|
|
604 set_local(
|
|
605 i,
|
|
606 SharkValue::create_jint(
|
|
607 builder()->CreateAdd(
|
|
608 LLVMValue::jint_constant(iter()->get_iinc_con()),
|
|
609 local(i)->jint_value()), false));
|
|
610 break;
|
|
611
|
|
612 case Bytecodes::_lcmp:
|
|
613 do_lcmp();
|
|
614 break;
|
|
615
|
|
616 case Bytecodes::_fcmpl:
|
|
617 do_fcmp(false, false);
|
|
618 break;
|
|
619 case Bytecodes::_fcmpg:
|
|
620 do_fcmp(false, true);
|
|
621 break;
|
|
622 case Bytecodes::_dcmpl:
|
|
623 do_fcmp(true, false);
|
|
624 break;
|
|
625 case Bytecodes::_dcmpg:
|
|
626 do_fcmp(true, true);
|
|
627 break;
|
|
628
|
|
629 case Bytecodes::_i2l:
|
|
630 a = pop();
|
|
631 push(SharkValue::create_jlong(
|
|
632 builder()->CreateIntCast(
|
|
633 a->jint_value(), SharkType::jlong_type(), true), a->zero_checked()));
|
|
634 break;
|
|
635 case Bytecodes::_i2f:
|
|
636 push(SharkValue::create_jfloat(
|
|
637 builder()->CreateSIToFP(
|
|
638 pop()->jint_value(), SharkType::jfloat_type())));
|
|
639 break;
|
|
640 case Bytecodes::_i2d:
|
|
641 push(SharkValue::create_jdouble(
|
|
642 builder()->CreateSIToFP(
|
|
643 pop()->jint_value(), SharkType::jdouble_type())));
|
|
644 break;
|
|
645
|
|
646 case Bytecodes::_l2i:
|
|
647 push(SharkValue::create_jint(
|
|
648 builder()->CreateIntCast(
|
|
649 pop()->jlong_value(), SharkType::jint_type(), true), false));
|
|
650 break;
|
|
651 case Bytecodes::_l2f:
|
|
652 push(SharkValue::create_jfloat(
|
|
653 builder()->CreateSIToFP(
|
|
654 pop()->jlong_value(), SharkType::jfloat_type())));
|
|
655 break;
|
|
656 case Bytecodes::_l2d:
|
|
657 push(SharkValue::create_jdouble(
|
|
658 builder()->CreateSIToFP(
|
|
659 pop()->jlong_value(), SharkType::jdouble_type())));
|
|
660 break;
|
|
661
|
|
662 case Bytecodes::_f2i:
|
|
663 push(SharkValue::create_jint(
|
|
664 builder()->CreateCall(
|
|
665 builder()->f2i(), pop()->jfloat_value()), false));
|
|
666 break;
|
|
667 case Bytecodes::_f2l:
|
|
668 push(SharkValue::create_jlong(
|
|
669 builder()->CreateCall(
|
|
670 builder()->f2l(), pop()->jfloat_value()), false));
|
|
671 break;
|
|
672 case Bytecodes::_f2d:
|
|
673 push(SharkValue::create_jdouble(
|
|
674 builder()->CreateFPExt(
|
|
675 pop()->jfloat_value(), SharkType::jdouble_type())));
|
|
676 break;
|
|
677
|
|
678 case Bytecodes::_d2i:
|
|
679 push(SharkValue::create_jint(
|
|
680 builder()->CreateCall(
|
|
681 builder()->d2i(), pop()->jdouble_value()), false));
|
|
682 break;
|
|
683 case Bytecodes::_d2l:
|
|
684 push(SharkValue::create_jlong(
|
|
685 builder()->CreateCall(
|
|
686 builder()->d2l(), pop()->jdouble_value()), false));
|
|
687 break;
|
|
688 case Bytecodes::_d2f:
|
|
689 push(SharkValue::create_jfloat(
|
|
690 builder()->CreateFPTrunc(
|
|
691 pop()->jdouble_value(), SharkType::jfloat_type())));
|
|
692 break;
|
|
693
|
|
694 case Bytecodes::_i2b:
|
|
695 push(SharkValue::create_jint(
|
|
696 builder()->CreateAShr(
|
|
697 builder()->CreateShl(
|
|
698 pop()->jint_value(),
|
|
699 LLVMValue::jint_constant(24)),
|
|
700 LLVMValue::jint_constant(24)), false));
|
|
701 break;
|
|
702 case Bytecodes::_i2c:
|
|
703 push(SharkValue::create_jint(
|
|
704 builder()->CreateAnd(
|
|
705 pop()->jint_value(),
|
|
706 LLVMValue::jint_constant(0xffff)), false));
|
|
707 break;
|
|
708 case Bytecodes::_i2s:
|
|
709 push(SharkValue::create_jint(
|
|
710 builder()->CreateAShr(
|
|
711 builder()->CreateShl(
|
|
712 pop()->jint_value(),
|
|
713 LLVMValue::jint_constant(16)),
|
|
714 LLVMValue::jint_constant(16)), false));
|
|
715 break;
|
|
716
|
|
717 case Bytecodes::_return:
|
|
718 do_return(T_VOID);
|
|
719 break;
|
|
720 case Bytecodes::_ireturn:
|
|
721 do_return(T_INT);
|
|
722 break;
|
|
723 case Bytecodes::_lreturn:
|
|
724 do_return(T_LONG);
|
|
725 break;
|
|
726 case Bytecodes::_freturn:
|
|
727 do_return(T_FLOAT);
|
|
728 break;
|
|
729 case Bytecodes::_dreturn:
|
|
730 do_return(T_DOUBLE);
|
|
731 break;
|
|
732 case Bytecodes::_areturn:
|
|
733 do_return(T_OBJECT);
|
|
734 break;
|
|
735
|
|
736 case Bytecodes::_athrow:
|
|
737 do_athrow();
|
|
738 break;
|
|
739
|
|
740 case Bytecodes::_goto:
|
|
741 case Bytecodes::_goto_w:
|
|
742 do_goto();
|
|
743 break;
|
|
744
|
|
745 case Bytecodes::_jsr:
|
|
746 case Bytecodes::_jsr_w:
|
|
747 do_jsr();
|
|
748 break;
|
|
749
|
|
750 case Bytecodes::_ret:
|
|
751 do_ret();
|
|
752 break;
|
|
753
|
|
754 case Bytecodes::_ifnull:
|
|
755 do_if(ICmpInst::ICMP_EQ, SharkValue::null(), pop());
|
|
756 break;
|
|
757 case Bytecodes::_ifnonnull:
|
|
758 do_if(ICmpInst::ICMP_NE, SharkValue::null(), pop());
|
|
759 break;
|
|
760 case Bytecodes::_if_acmpeq:
|
|
761 b = pop();
|
|
762 a = pop();
|
|
763 do_if(ICmpInst::ICMP_EQ, b, a);
|
|
764 break;
|
|
765 case Bytecodes::_if_acmpne:
|
|
766 b = pop();
|
|
767 a = pop();
|
|
768 do_if(ICmpInst::ICMP_NE, b, a);
|
|
769 break;
|
|
770 case Bytecodes::_ifeq:
|
|
771 do_if(ICmpInst::ICMP_EQ, SharkValue::jint_constant(0), pop());
|
|
772 break;
|
|
773 case Bytecodes::_ifne:
|
|
774 do_if(ICmpInst::ICMP_NE, SharkValue::jint_constant(0), pop());
|
|
775 break;
|
|
776 case Bytecodes::_iflt:
|
|
777 do_if(ICmpInst::ICMP_SLT, SharkValue::jint_constant(0), pop());
|
|
778 break;
|
|
779 case Bytecodes::_ifle:
|
|
780 do_if(ICmpInst::ICMP_SLE, SharkValue::jint_constant(0), pop());
|
|
781 break;
|
|
782 case Bytecodes::_ifgt:
|
|
783 do_if(ICmpInst::ICMP_SGT, SharkValue::jint_constant(0), pop());
|
|
784 break;
|
|
785 case Bytecodes::_ifge:
|
|
786 do_if(ICmpInst::ICMP_SGE, SharkValue::jint_constant(0), pop());
|
|
787 break;
|
|
788 case Bytecodes::_if_icmpeq:
|
|
789 b = pop();
|
|
790 a = pop();
|
|
791 do_if(ICmpInst::ICMP_EQ, b, a);
|
|
792 break;
|
|
793 case Bytecodes::_if_icmpne:
|
|
794 b = pop();
|
|
795 a = pop();
|
|
796 do_if(ICmpInst::ICMP_NE, b, a);
|
|
797 break;
|
|
798 case Bytecodes::_if_icmplt:
|
|
799 b = pop();
|
|
800 a = pop();
|
|
801 do_if(ICmpInst::ICMP_SLT, b, a);
|
|
802 break;
|
|
803 case Bytecodes::_if_icmple:
|
|
804 b = pop();
|
|
805 a = pop();
|
|
806 do_if(ICmpInst::ICMP_SLE, b, a);
|
|
807 break;
|
|
808 case Bytecodes::_if_icmpgt:
|
|
809 b = pop();
|
|
810 a = pop();
|
|
811 do_if(ICmpInst::ICMP_SGT, b, a);
|
|
812 break;
|
|
813 case Bytecodes::_if_icmpge:
|
|
814 b = pop();
|
|
815 a = pop();
|
|
816 do_if(ICmpInst::ICMP_SGE, b, a);
|
|
817 break;
|
|
818
|
|
819 case Bytecodes::_tableswitch:
|
|
820 case Bytecodes::_lookupswitch:
|
|
821 do_switch();
|
|
822 break;
|
|
823
|
|
824 case Bytecodes::_invokestatic:
|
|
825 case Bytecodes::_invokespecial:
|
|
826 case Bytecodes::_invokevirtual:
|
|
827 case Bytecodes::_invokeinterface:
|
|
828 do_call();
|
|
829 break;
|
|
830
|
|
831 case Bytecodes::_instanceof:
|
|
832 // This is a very common construct:
|
|
833 //
|
|
834 // if (object instanceof Klass) {
|
|
835 // something = (Klass) object;
|
|
836 // ...
|
|
837 // }
|
|
838 //
|
|
839 // which gets compiled to something like this:
|
|
840 //
|
|
841 // 28: aload 9
|
|
842 // 30: instanceof <Class Klass>
|
|
843 // 33: ifeq 52
|
|
844 // 36: aload 9
|
|
845 // 38: checkcast <Class Klass>
|
|
846 //
|
|
847 // Handling both bytecodes at once allows us
|
|
848 // to eliminate the checkcast.
|
|
849 if (iter()->next_bci() < limit &&
|
|
850 (iter()->next_bc() == Bytecodes::_ifeq ||
|
|
851 iter()->next_bc() == Bytecodes::_ifne) &&
|
|
852 (!UseLoopSafepoints ||
|
|
853 iter()->next_get_dest() > iter()->next_bci())) {
|
|
854 if (maybe_do_instanceof_if()) {
|
|
855 iter()->next();
|
|
856 if (SharkTraceBytecodes)
|
|
857 tty->print_cr("%4d: %s", bci(), Bytecodes::name(bc()));
|
|
858 break;
|
|
859 }
|
|
860 }
|
|
861 // fall through
|
|
862 case Bytecodes::_checkcast:
|
|
863 do_instance_check();
|
|
864 break;
|
|
865
|
|
866 case Bytecodes::_new:
|
|
867 do_new();
|
|
868 break;
|
|
869 case Bytecodes::_newarray:
|
|
870 do_newarray();
|
|
871 break;
|
|
872 case Bytecodes::_anewarray:
|
|
873 do_anewarray();
|
|
874 break;
|
|
875 case Bytecodes::_multianewarray:
|
|
876 do_multianewarray();
|
|
877 break;
|
|
878
|
|
879 case Bytecodes::_monitorenter:
|
|
880 do_monitorenter();
|
|
881 break;
|
|
882 case Bytecodes::_monitorexit:
|
|
883 do_monitorexit();
|
|
884 break;
|
|
885
|
|
886 default:
|
|
887 ShouldNotReachHere();
|
|
888 }
|
|
889 }
|
|
890 }
|
|
891
|
|
892 SharkState* SharkBlock::initial_current_state() {
|
|
893 return entry_state()->copy();
|
|
894 }
|
|
895
|
|
896 int SharkBlock::switch_default_dest() {
|
|
897 return iter()->get_dest_table(0);
|
|
898 }
|
|
899
|
|
900 int SharkBlock::switch_table_length() {
|
|
901 switch(bc()) {
|
|
902 case Bytecodes::_tableswitch:
|
|
903 return iter()->get_int_table(2) - iter()->get_int_table(1) + 1;
|
|
904
|
|
905 case Bytecodes::_lookupswitch:
|
|
906 return iter()->get_int_table(1);
|
|
907
|
|
908 default:
|
|
909 ShouldNotReachHere();
|
|
910 }
|
|
911 }
|
|
912
|
|
913 int SharkBlock::switch_key(int i) {
|
|
914 switch(bc()) {
|
|
915 case Bytecodes::_tableswitch:
|
|
916 return iter()->get_int_table(1) + i;
|
|
917
|
|
918 case Bytecodes::_lookupswitch:
|
|
919 return iter()->get_int_table(2 + 2 * i);
|
|
920
|
|
921 default:
|
|
922 ShouldNotReachHere();
|
|
923 }
|
|
924 }
|
|
925
|
|
926 int SharkBlock::switch_dest(int i) {
|
|
927 switch(bc()) {
|
|
928 case Bytecodes::_tableswitch:
|
|
929 return iter()->get_dest_table(i + 3);
|
|
930
|
|
931 case Bytecodes::_lookupswitch:
|
|
932 return iter()->get_dest_table(2 + 2 * i + 1);
|
|
933
|
|
934 default:
|
|
935 ShouldNotReachHere();
|
|
936 }
|
|
937 }
|
|
938
|
|
939 void SharkBlock::do_div_or_rem(bool is_long, bool is_rem) {
|
|
940 SharkValue *sb = pop();
|
|
941 SharkValue *sa = pop();
|
|
942
|
|
943 check_divide_by_zero(sb);
|
|
944
|
|
945 Value *a, *b, *p, *q;
|
|
946 if (is_long) {
|
|
947 a = sa->jlong_value();
|
|
948 b = sb->jlong_value();
|
|
949 p = LLVMValue::jlong_constant(0x8000000000000000LL);
|
|
950 q = LLVMValue::jlong_constant(-1);
|
|
951 }
|
|
952 else {
|
|
953 a = sa->jint_value();
|
|
954 b = sb->jint_value();
|
|
955 p = LLVMValue::jint_constant(0x80000000);
|
|
956 q = LLVMValue::jint_constant(-1);
|
|
957 }
|
|
958
|
|
959 BasicBlock *ip = builder()->GetBlockInsertionPoint();
|
|
960 BasicBlock *special_case = builder()->CreateBlock(ip, "special_case");
|
|
961 BasicBlock *general_case = builder()->CreateBlock(ip, "general_case");
|
|
962 BasicBlock *done = builder()->CreateBlock(ip, "done");
|
|
963
|
|
964 builder()->CreateCondBr(
|
|
965 builder()->CreateAnd(
|
|
966 builder()->CreateICmpEQ(a, p),
|
|
967 builder()->CreateICmpEQ(b, q)),
|
|
968 special_case, general_case);
|
|
969
|
|
970 builder()->SetInsertPoint(special_case);
|
|
971 Value *special_result;
|
|
972 if (is_rem) {
|
|
973 if (is_long)
|
|
974 special_result = LLVMValue::jlong_constant(0);
|
|
975 else
|
|
976 special_result = LLVMValue::jint_constant(0);
|
|
977 }
|
|
978 else {
|
|
979 special_result = a;
|
|
980 }
|
|
981 builder()->CreateBr(done);
|
|
982
|
|
983 builder()->SetInsertPoint(general_case);
|
|
984 Value *general_result;
|
|
985 if (is_rem)
|
|
986 general_result = builder()->CreateSRem(a, b);
|
|
987 else
|
|
988 general_result = builder()->CreateSDiv(a, b);
|
|
989 builder()->CreateBr(done);
|
|
990
|
|
991 builder()->SetInsertPoint(done);
|
|
992 PHINode *result;
|
|
993 if (is_long)
|
|
994 result = builder()->CreatePHI(SharkType::jlong_type(), "result");
|
|
995 else
|
|
996 result = builder()->CreatePHI(SharkType::jint_type(), "result");
|
|
997 result->addIncoming(special_result, special_case);
|
|
998 result->addIncoming(general_result, general_case);
|
|
999
|
|
1000 if (is_long)
|
|
1001 push(SharkValue::create_jlong(result, false));
|
|
1002 else
|
|
1003 push(SharkValue::create_jint(result, false));
|
|
1004 }
|
|
1005
|
|
1006 void SharkBlock::do_field_access(bool is_get, bool is_field) {
|
|
1007 bool will_link;
|
|
1008 ciField *field = iter()->get_field(will_link);
|
|
1009 assert(will_link, "typeflow responsibility");
|
|
1010 assert(is_field != field->is_static(), "mismatch");
|
|
1011
|
|
1012 // Pop the value off the stack where necessary
|
|
1013 SharkValue *value = NULL;
|
|
1014 if (!is_get)
|
|
1015 value = pop();
|
|
1016
|
|
1017 // Find the object we're accessing, if necessary
|
|
1018 Value *object = NULL;
|
|
1019 if (is_field) {
|
|
1020 SharkValue *value = pop();
|
|
1021 check_null(value);
|
|
1022 object = value->generic_value();
|
|
1023 }
|
|
1024 if (is_get && field->is_constant()) {
|
|
1025 SharkConstant *constant = SharkConstant::for_field(iter());
|
|
1026 if (constant->is_loaded())
|
|
1027 value = constant->value(builder());
|
|
1028 }
|
|
1029 if (!is_get || value == NULL) {
|
|
1030 if (!is_field)
|
|
1031 object = builder()->CreateInlineOop(field->holder());
|
|
1032
|
|
1033 BasicType basic_type = field->type()->basic_type();
|
|
1034 const Type *stack_type = SharkType::to_stackType(basic_type);
|
|
1035 const Type *field_type = SharkType::to_arrayType(basic_type);
|
|
1036
|
|
1037 Value *addr = builder()->CreateAddressOfStructEntry(
|
|
1038 object, in_ByteSize(field->offset_in_bytes()),
|
|
1039 PointerType::getUnqual(field_type),
|
|
1040 "addr");
|
|
1041
|
|
1042 // Do the access
|
|
1043 if (is_get) {
|
|
1044 Value *field_value = builder()->CreateLoad(addr);
|
|
1045
|
|
1046 if (field_type != stack_type) {
|
|
1047 field_value = builder()->CreateIntCast(
|
|
1048 field_value, stack_type, basic_type != T_CHAR);
|
|
1049 }
|
|
1050
|
|
1051 value = SharkValue::create_generic(field->type(), field_value, false);
|
|
1052 }
|
|
1053 else {
|
|
1054 Value *field_value = value->generic_value();
|
|
1055
|
|
1056 if (field_type != stack_type) {
|
|
1057 field_value = builder()->CreateIntCast(
|
|
1058 field_value, field_type, basic_type != T_CHAR);
|
|
1059 }
|
|
1060
|
|
1061 builder()->CreateStore(field_value, addr);
|
|
1062
|
|
1063 if (!field->type()->is_primitive_type())
|
|
1064 builder()->CreateUpdateBarrierSet(oopDesc::bs(), addr);
|
|
1065
|
|
1066 if (field->is_volatile())
|
|
1067 builder()->CreateMemoryBarrier(SharkBuilder::BARRIER_STORELOAD);
|
|
1068 }
|
|
1069 }
|
|
1070
|
|
1071 // Push the value onto the stack where necessary
|
|
1072 if (is_get)
|
|
1073 push(value);
|
|
1074 }
|
|
1075
|
|
1076 void SharkBlock::do_lcmp() {
|
|
1077 Value *b = pop()->jlong_value();
|
|
1078 Value *a = pop()->jlong_value();
|
|
1079
|
|
1080 BasicBlock *ip = builder()->GetBlockInsertionPoint();
|
|
1081 BasicBlock *ne = builder()->CreateBlock(ip, "lcmp_ne");
|
|
1082 BasicBlock *lt = builder()->CreateBlock(ip, "lcmp_lt");
|
|
1083 BasicBlock *gt = builder()->CreateBlock(ip, "lcmp_gt");
|
|
1084 BasicBlock *done = builder()->CreateBlock(ip, "done");
|
|
1085
|
|
1086 BasicBlock *eq = builder()->GetInsertBlock();
|
|
1087 builder()->CreateCondBr(builder()->CreateICmpEQ(a, b), done, ne);
|
|
1088
|
|
1089 builder()->SetInsertPoint(ne);
|
|
1090 builder()->CreateCondBr(builder()->CreateICmpSLT(a, b), lt, gt);
|
|
1091
|
|
1092 builder()->SetInsertPoint(lt);
|
|
1093 builder()->CreateBr(done);
|
|
1094
|
|
1095 builder()->SetInsertPoint(gt);
|
|
1096 builder()->CreateBr(done);
|
|
1097
|
|
1098 builder()->SetInsertPoint(done);
|
|
1099 PHINode *result = builder()->CreatePHI(SharkType::jint_type(), "result");
|
|
1100 result->addIncoming(LLVMValue::jint_constant(-1), lt);
|
|
1101 result->addIncoming(LLVMValue::jint_constant(0), eq);
|
|
1102 result->addIncoming(LLVMValue::jint_constant(1), gt);
|
|
1103
|
|
1104 push(SharkValue::create_jint(result, false));
|
|
1105 }
|
|
1106
|
|
1107 void SharkBlock::do_fcmp(bool is_double, bool unordered_is_greater) {
|
|
1108 Value *a, *b;
|
|
1109 if (is_double) {
|
|
1110 b = pop()->jdouble_value();
|
|
1111 a = pop()->jdouble_value();
|
|
1112 }
|
|
1113 else {
|
|
1114 b = pop()->jfloat_value();
|
|
1115 a = pop()->jfloat_value();
|
|
1116 }
|
|
1117
|
|
1118 BasicBlock *ip = builder()->GetBlockInsertionPoint();
|
|
1119 BasicBlock *ordered = builder()->CreateBlock(ip, "ordered");
|
|
1120 BasicBlock *ge = builder()->CreateBlock(ip, "fcmp_ge");
|
|
1121 BasicBlock *lt = builder()->CreateBlock(ip, "fcmp_lt");
|
|
1122 BasicBlock *eq = builder()->CreateBlock(ip, "fcmp_eq");
|
|
1123 BasicBlock *gt = builder()->CreateBlock(ip, "fcmp_gt");
|
|
1124 BasicBlock *done = builder()->CreateBlock(ip, "done");
|
|
1125
|
|
1126 builder()->CreateCondBr(
|
|
1127 builder()->CreateFCmpUNO(a, b),
|
|
1128 unordered_is_greater ? gt : lt, ordered);
|
|
1129
|
|
1130 builder()->SetInsertPoint(ordered);
|
|
1131 builder()->CreateCondBr(builder()->CreateFCmpULT(a, b), lt, ge);
|
|
1132
|
|
1133 builder()->SetInsertPoint(ge);
|
|
1134 builder()->CreateCondBr(builder()->CreateFCmpUGT(a, b), gt, eq);
|
|
1135
|
|
1136 builder()->SetInsertPoint(lt);
|
|
1137 builder()->CreateBr(done);
|
|
1138
|
|
1139 builder()->SetInsertPoint(gt);
|
|
1140 builder()->CreateBr(done);
|
|
1141
|
|
1142 builder()->SetInsertPoint(eq);
|
|
1143 builder()->CreateBr(done);
|
|
1144
|
|
1145 builder()->SetInsertPoint(done);
|
|
1146 PHINode *result = builder()->CreatePHI(SharkType::jint_type(), "result");
|
|
1147 result->addIncoming(LLVMValue::jint_constant(-1), lt);
|
|
1148 result->addIncoming(LLVMValue::jint_constant(0), eq);
|
|
1149 result->addIncoming(LLVMValue::jint_constant(1), gt);
|
|
1150
|
|
1151 push(SharkValue::create_jint(result, false));
|
|
1152 }
|
|
1153
|
|
1154 void SharkBlock::emit_IR() {
|
|
1155 ShouldNotCallThis();
|
|
1156 }
|
|
1157
|
|
1158 SharkState* SharkBlock::entry_state() {
|
|
1159 ShouldNotCallThis();
|
|
1160 }
|
|
1161
|
|
1162 void SharkBlock::do_zero_check(SharkValue* value) {
|
|
1163 ShouldNotCallThis();
|
|
1164 }
|
|
1165
|
|
1166 void SharkBlock::maybe_add_backedge_safepoint() {
|
|
1167 ShouldNotCallThis();
|
|
1168 }
|
|
1169
|
|
1170 bool SharkBlock::has_trap() {
|
|
1171 return false;
|
|
1172 }
|
|
1173
|
|
1174 int SharkBlock::trap_request() {
|
|
1175 ShouldNotCallThis();
|
|
1176 }
|
|
1177
|
|
1178 int SharkBlock::trap_bci() {
|
|
1179 ShouldNotCallThis();
|
|
1180 }
|
|
1181
|
|
1182 void SharkBlock::do_trap(int trap_request) {
|
|
1183 ShouldNotCallThis();
|
|
1184 }
|
|
1185
|
|
1186 void SharkBlock::do_arraylength() {
|
|
1187 ShouldNotCallThis();
|
|
1188 }
|
|
1189
|
|
1190 void SharkBlock::do_aload(BasicType basic_type) {
|
|
1191 ShouldNotCallThis();
|
|
1192 }
|
|
1193
|
|
1194 void SharkBlock::do_astore(BasicType basic_type) {
|
|
1195 ShouldNotCallThis();
|
|
1196 }
|
|
1197
|
|
1198 void SharkBlock::do_return(BasicType type) {
|
|
1199 ShouldNotCallThis();
|
|
1200 }
|
|
1201
|
|
1202 void SharkBlock::do_athrow() {
|
|
1203 ShouldNotCallThis();
|
|
1204 }
|
|
1205
|
|
1206 void SharkBlock::do_goto() {
|
|
1207 ShouldNotCallThis();
|
|
1208 }
|
|
1209
|
|
1210 void SharkBlock::do_jsr() {
|
|
1211 ShouldNotCallThis();
|
|
1212 }
|
|
1213
|
|
1214 void SharkBlock::do_ret() {
|
|
1215 ShouldNotCallThis();
|
|
1216 }
|
|
1217
|
|
1218 void SharkBlock::do_if(ICmpInst::Predicate p, SharkValue* b, SharkValue* a) {
|
|
1219 ShouldNotCallThis();
|
|
1220 }
|
|
1221
|
|
1222 void SharkBlock::do_switch() {
|
|
1223 ShouldNotCallThis();
|
|
1224 }
|
|
1225
|
|
1226 void SharkBlock::do_call() {
|
|
1227 ShouldNotCallThis();
|
|
1228 }
|
|
1229
|
|
1230 void SharkBlock::do_instance_check() {
|
|
1231 ShouldNotCallThis();
|
|
1232 }
|
|
1233
|
|
1234 bool SharkBlock::maybe_do_instanceof_if() {
|
|
1235 ShouldNotCallThis();
|
|
1236 }
|
|
1237
|
|
1238 void SharkBlock::do_new() {
|
|
1239 ShouldNotCallThis();
|
|
1240 }
|
|
1241
|
|
1242 void SharkBlock::do_newarray() {
|
|
1243 ShouldNotCallThis();
|
|
1244 }
|
|
1245
|
|
1246 void SharkBlock::do_anewarray() {
|
|
1247 ShouldNotCallThis();
|
|
1248 }
|
|
1249
|
|
1250 void SharkBlock::do_multianewarray() {
|
|
1251 ShouldNotCallThis();
|
|
1252 }
|
|
1253
|
|
1254 void SharkBlock::do_monitorenter() {
|
|
1255 ShouldNotCallThis();
|
|
1256 }
|
|
1257
|
|
1258 void SharkBlock::do_monitorexit() {
|
|
1259 ShouldNotCallThis();
|
|
1260 }
|