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1 /* |
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2 * Copyright (C) 2008, 2009 Apple Inc. All rights reserved. |
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3 * Copyright (C) 2008 Cameron Zwarich <cwzwarich@uwaterloo.ca> |
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4 * |
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5 * Redistribution and use in source and binary forms, with or without |
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6 * modification, are permitted provided that the following conditions |
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7 * are met: |
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8 * |
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9 * 1. Redistributions of source code must retain the above copyright |
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10 * notice, this list of conditions and the following disclaimer. |
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11 * 2. Redistributions in binary form must reproduce the above copyright |
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12 * notice, this list of conditions and the following disclaimer in the |
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13 * documentation and/or other materials provided with the distribution. |
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14 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of |
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15 * its contributors may be used to endorse or promote products derived |
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16 * from this software without specific prior written permission. |
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17 * |
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18 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY |
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19 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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21 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
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22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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25 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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28 */ |
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29 |
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30 #ifndef Opcode_h |
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31 #define Opcode_h |
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32 |
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33 #include <algorithm> |
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34 #include <string.h> |
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35 |
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36 #include <wtf/Assertions.h> |
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37 |
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38 namespace JSC { |
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39 |
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40 #define FOR_EACH_OPCODE_ID(macro) \ |
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41 macro(op_enter, 1) \ |
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42 macro(op_enter_with_activation, 2) \ |
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43 macro(op_init_arguments, 2) \ |
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44 macro(op_create_arguments, 2) \ |
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45 macro(op_create_this, 3) \ |
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46 macro(op_get_callee, 2) \ |
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47 macro(op_convert_this, 2) \ |
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48 \ |
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49 macro(op_new_object, 2) \ |
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50 macro(op_new_array, 4) \ |
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51 macro(op_new_regexp, 3) \ |
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52 macro(op_mov, 3) \ |
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53 \ |
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54 macro(op_not, 3) \ |
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55 macro(op_eq, 4) \ |
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56 macro(op_eq_null, 3) \ |
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57 macro(op_neq, 4) \ |
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58 macro(op_neq_null, 3) \ |
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59 macro(op_stricteq, 4) \ |
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60 macro(op_nstricteq, 4) \ |
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61 macro(op_less, 4) \ |
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62 macro(op_lesseq, 4) \ |
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63 \ |
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64 macro(op_pre_inc, 2) \ |
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65 macro(op_pre_dec, 2) \ |
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66 macro(op_post_inc, 3) \ |
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67 macro(op_post_dec, 3) \ |
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68 macro(op_to_jsnumber, 3) \ |
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69 macro(op_negate, 3) \ |
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70 macro(op_add, 5) \ |
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71 macro(op_mul, 5) \ |
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72 macro(op_div, 5) \ |
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73 macro(op_mod, 4) \ |
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74 macro(op_sub, 5) \ |
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75 \ |
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76 macro(op_lshift, 4) \ |
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77 macro(op_rshift, 4) \ |
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78 macro(op_urshift, 4) \ |
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79 macro(op_bitand, 5) \ |
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80 macro(op_bitxor, 5) \ |
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81 macro(op_bitor, 5) \ |
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82 macro(op_bitnot, 3) \ |
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83 \ |
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84 macro(op_instanceof, 5) \ |
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85 macro(op_typeof, 3) \ |
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86 macro(op_is_undefined, 3) \ |
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87 macro(op_is_boolean, 3) \ |
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88 macro(op_is_number, 3) \ |
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89 macro(op_is_string, 3) \ |
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90 macro(op_is_object, 3) \ |
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91 macro(op_is_function, 3) \ |
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92 macro(op_in, 4) \ |
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93 \ |
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94 macro(op_resolve, 3) \ |
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95 macro(op_resolve_skip, 4) \ |
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96 macro(op_resolve_global, 6) \ |
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97 macro(op_resolve_global_dynamic, 7) \ |
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98 macro(op_get_scoped_var, 4) \ |
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99 macro(op_put_scoped_var, 4) \ |
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100 macro(op_get_global_var, 4) \ |
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101 macro(op_put_global_var, 4) \ |
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102 macro(op_resolve_base, 3) \ |
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103 macro(op_resolve_with_base, 4) \ |
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104 macro(op_get_by_id, 8) \ |
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105 macro(op_get_by_id_self, 8) \ |
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106 macro(op_get_by_id_self_list, 8) \ |
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107 macro(op_get_by_id_proto, 8) \ |
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108 macro(op_get_by_id_proto_list, 8) \ |
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109 macro(op_get_by_id_chain, 8) \ |
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110 macro(op_get_by_id_getter_self, 8) \ |
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111 macro(op_get_by_id_getter_self_list, 8) \ |
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112 macro(op_get_by_id_getter_proto, 8) \ |
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113 macro(op_get_by_id_getter_proto_list, 8) \ |
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114 macro(op_get_by_id_getter_chain, 8) \ |
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115 macro(op_get_by_id_custom_self, 8) \ |
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116 macro(op_get_by_id_custom_self_list, 8) \ |
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117 macro(op_get_by_id_custom_proto, 8) \ |
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118 macro(op_get_by_id_custom_proto_list, 8) \ |
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119 macro(op_get_by_id_custom_chain, 8) \ |
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120 macro(op_get_by_id_generic, 8) \ |
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121 macro(op_get_array_length, 8) \ |
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122 macro(op_get_string_length, 8) \ |
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123 macro(op_put_by_id, 9) \ |
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124 macro(op_put_by_id_transition, 9) \ |
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125 macro(op_put_by_id_replace, 9) \ |
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126 macro(op_put_by_id_generic, 9) \ |
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127 macro(op_del_by_id, 4) \ |
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128 macro(op_get_by_val, 4) \ |
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129 macro(op_get_by_pname, 7) \ |
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130 macro(op_put_by_val, 4) \ |
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131 macro(op_del_by_val, 4) \ |
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132 macro(op_put_by_index, 4) \ |
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133 macro(op_put_getter, 4) \ |
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134 macro(op_put_setter, 4) \ |
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135 \ |
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136 macro(op_jmp, 2) \ |
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137 macro(op_jtrue, 3) \ |
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138 macro(op_jfalse, 3) \ |
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139 macro(op_jeq_null, 3) \ |
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140 macro(op_jneq_null, 3) \ |
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141 macro(op_jneq_ptr, 4) \ |
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142 macro(op_jnless, 4) \ |
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143 macro(op_jnlesseq, 4) \ |
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144 macro(op_jless, 4) \ |
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145 macro(op_jlesseq, 4) \ |
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146 macro(op_jmp_scopes, 3) \ |
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147 macro(op_loop, 2) \ |
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148 macro(op_loop_if_true, 3) \ |
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149 macro(op_loop_if_false, 3) \ |
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150 macro(op_loop_if_less, 4) \ |
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151 macro(op_loop_if_lesseq, 4) \ |
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152 macro(op_switch_imm, 4) \ |
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153 macro(op_switch_char, 4) \ |
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154 macro(op_switch_string, 4) \ |
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155 \ |
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156 macro(op_new_func, 3) \ |
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157 macro(op_new_func_exp, 3) \ |
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158 macro(op_call, 4) \ |
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159 macro(op_call_eval, 4) \ |
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160 macro(op_call_varargs, 4) \ |
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161 macro(op_load_varargs, 3) \ |
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162 macro(op_tear_off_activation, 3) \ |
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163 macro(op_tear_off_arguments, 2) \ |
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164 macro(op_ret, 2) \ |
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165 macro(op_call_put_result, 2) \ |
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166 macro(op_ret_object_or_this, 3) \ |
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167 macro(op_method_check, 1) \ |
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168 \ |
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169 macro(op_construct, 4) \ |
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170 macro(op_strcat, 4) \ |
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171 macro(op_to_primitive, 3) \ |
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172 \ |
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173 macro(op_get_pnames, 6) \ |
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174 macro(op_next_pname, 7) \ |
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175 \ |
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176 macro(op_push_scope, 2) \ |
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177 macro(op_pop_scope, 1) \ |
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178 macro(op_push_new_scope, 4) \ |
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179 \ |
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180 macro(op_catch, 2) \ |
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181 macro(op_throw, 2) \ |
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182 macro(op_new_error, 4) \ |
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183 \ |
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184 macro(op_jsr, 3) \ |
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185 macro(op_sret, 2) \ |
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186 \ |
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187 macro(op_debug, 4) \ |
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188 macro(op_profile_will_call, 2) \ |
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189 macro(op_profile_did_call, 2) \ |
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190 \ |
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191 macro(op_end, 2) // end must be the last opcode in the list |
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192 |
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193 #define OPCODE_ID_ENUM(opcode, length) opcode, |
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194 typedef enum { FOR_EACH_OPCODE_ID(OPCODE_ID_ENUM) } OpcodeID; |
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195 #undef OPCODE_ID_ENUM |
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196 |
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197 const int numOpcodeIDs = op_end + 1; |
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198 |
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199 #define OPCODE_ID_LENGTHS(id, length) const int id##_length = length; |
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200 FOR_EACH_OPCODE_ID(OPCODE_ID_LENGTHS); |
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201 #undef OPCODE_ID_LENGTHS |
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202 |
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203 #define OPCODE_LENGTH(opcode) opcode##_length |
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204 |
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205 #define OPCODE_ID_LENGTH_MAP(opcode, length) length, |
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206 const int opcodeLengths[numOpcodeIDs] = { FOR_EACH_OPCODE_ID(OPCODE_ID_LENGTH_MAP) }; |
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207 #undef OPCODE_ID_LENGTH_MAP |
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208 |
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209 #define VERIFY_OPCODE_ID(id, size) COMPILE_ASSERT(id <= op_end, ASSERT_THAT_JS_OPCODE_IDS_ARE_VALID); |
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210 FOR_EACH_OPCODE_ID(VERIFY_OPCODE_ID); |
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211 #undef VERIFY_OPCODE_ID |
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212 |
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213 #if ENABLE(COMPUTED_GOTO_INTERPRETER) |
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214 #if COMPILER(RVCT) || COMPILER(INTEL) |
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215 typedef void* Opcode; |
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216 #else |
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217 typedef const void* Opcode; |
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218 #endif |
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219 #else |
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220 typedef OpcodeID Opcode; |
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221 #endif |
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222 |
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223 #if ENABLE(OPCODE_SAMPLING) || ENABLE(CODEBLOCK_SAMPLING) || ENABLE(OPCODE_STATS) |
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224 |
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225 #define PADDING_STRING " " |
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226 #define PADDING_STRING_LENGTH static_cast<unsigned>(strlen(PADDING_STRING)) |
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227 |
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228 extern const char* const opcodeNames[]; |
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229 |
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230 inline const char* padOpcodeName(OpcodeID op, unsigned width) |
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231 { |
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232 unsigned pad = width - strlen(opcodeNames[op]); |
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233 pad = std::min(pad, PADDING_STRING_LENGTH); |
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234 return PADDING_STRING + PADDING_STRING_LENGTH - pad; |
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235 } |
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236 |
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237 #undef PADDING_STRING_LENGTH |
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238 #undef PADDING_STRING |
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239 |
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240 #endif |
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241 |
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242 #if ENABLE(OPCODE_STATS) |
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243 |
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244 struct OpcodeStats { |
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245 OpcodeStats(); |
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246 ~OpcodeStats(); |
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247 static long long opcodeCounts[numOpcodeIDs]; |
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248 static long long opcodePairCounts[numOpcodeIDs][numOpcodeIDs]; |
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249 static int lastOpcode; |
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250 |
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251 static void recordInstruction(int opcode); |
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252 static void resetLastInstruction(); |
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253 }; |
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254 |
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255 #endif |
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256 |
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257 } // namespace JSC |
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258 |
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259 #endif // Opcode_h |