0
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1 /*
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2 * Copyright 1997-2005 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 #include "incls/_precompiled.incl"
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26 #include "incls/_bytecodes.cpp.incl"
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27
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28
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29 // Windows AMD64 Compiler Hangs compiling this file
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30 // unless optimization is off
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31 #ifdef _M_AMD64
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32 #pragma optimize ("", off)
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33 #endif
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34
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35
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36 bool Bytecodes::_is_initialized = false;
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37 const char* Bytecodes::_name [Bytecodes::number_of_codes];
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38 const char* Bytecodes::_format [Bytecodes::number_of_codes];
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39 const char* Bytecodes::_wide_format [Bytecodes::number_of_codes];
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40 BasicType Bytecodes::_result_type [Bytecodes::number_of_codes];
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41 s_char Bytecodes::_depth [Bytecodes::number_of_codes];
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42 u_char Bytecodes::_length [Bytecodes::number_of_codes];
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43 bool Bytecodes::_can_trap [Bytecodes::number_of_codes];
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44 Bytecodes::Code Bytecodes::_java_code [Bytecodes::number_of_codes];
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45 bool Bytecodes::_can_rewrite [Bytecodes::number_of_codes];
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46
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47
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48 Bytecodes::Code Bytecodes::code_at(methodOop method, int bci) {
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49 return code_at(method->bcp_from(bci), method);
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50 }
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51
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52 Bytecodes::Code Bytecodes::non_breakpoint_code_at(address bcp, methodOop method) {
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53 if (method == NULL) method = methodOopDesc::method_from_bcp(bcp);
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54 return method->orig_bytecode_at(method->bci_from(bcp));
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55 }
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56
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57 int Bytecodes::special_length_at(address bcp) {
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58 Code code = code_at(bcp);
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59 switch (code) {
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60 case _wide:
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61 return wide_length_for(cast(*(bcp + 1)));
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62 case _tableswitch:
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63 { address aligned_bcp = (address)round_to((intptr_t)bcp + 1, jintSize);
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64 jlong lo = (jint)Bytes::get_Java_u4(aligned_bcp + 1*jintSize);
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65 jlong hi = (jint)Bytes::get_Java_u4(aligned_bcp + 2*jintSize);
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66 jlong len = (aligned_bcp - bcp) + (3 + hi - lo + 1)*jintSize;
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67 // only return len if it can be represented as a positive int;
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68 // return -1 otherwise
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69 return (len > 0 && len == (int)len) ? len : -1;
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70 }
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71
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72 case _lookupswitch: // fall through
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73 case _fast_binaryswitch: // fall through
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74 case _fast_linearswitch:
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75 { address aligned_bcp = (address)round_to((intptr_t)bcp + 1, jintSize);
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76 jlong npairs = (jint)Bytes::get_Java_u4(aligned_bcp + jintSize);
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77 jlong len = (aligned_bcp - bcp) + (2 + 2*npairs)*jintSize;
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78 // only return len if it can be represented as a positive int;
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79 // return -1 otherwise
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80 return (len > 0 && len == (int)len) ? len : -1;
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81 }
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82 }
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83 return 0;
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84 }
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85
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86 // At a breakpoint instruction, this returns the breakpoint's length,
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87 // otherwise, it's the same as special_length_at(). This is used by
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88 // the RawByteCodeStream, which wants to see the actual bytecode
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89 // values (including breakpoint). RawByteCodeStream is used by the
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90 // verifier when reading in bytecode to verify. Other mechanisms that
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91 // run at runtime (such as generateOopMaps) need to iterate over the code
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92 // and don't expect to see breakpoints: they want to see the instruction
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93 // which was replaces so that they can get the correct length and find
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94 // the next bytecode.
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95 int Bytecodes::raw_special_length_at(address bcp) {
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96 Code code = code_or_bp_at(bcp);
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97 if (code == _breakpoint) {
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98 return 1;
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99 } else {
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100 return special_length_at(bcp);
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101 }
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102 }
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103
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104
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105
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106 void Bytecodes::def(Code code, const char* name, const char* format, const char* wide_format, BasicType result_type, int depth, bool can_trap) {
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107 def(code, name, format, wide_format, result_type, depth, can_trap, code);
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108 }
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109
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110
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111 void Bytecodes::def(Code code, const char* name, const char* format, const char* wide_format, BasicType result_type, int depth, bool can_trap, Code java_code) {
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112 assert(wide_format == NULL || format != NULL, "short form must exist if there's a wide form");
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113 _name [code] = name;
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114 _format [code] = format;
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115 _wide_format [code] = wide_format;
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116 _result_type [code] = result_type;
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117 _depth [code] = depth;
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118 _can_trap [code] = can_trap;
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119 _length [code] = format != NULL ? (u_char)strlen(format) : 0;
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120 _java_code [code] = java_code;
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121 if (java_code != code) _can_rewrite[java_code] = true;
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122 }
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123
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124
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125 // Format strings interpretation:
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126 //
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127 // b: bytecode
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128 // c: signed constant, Java byte-ordering
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129 // i: unsigned index , Java byte-ordering
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130 // j: unsigned index , native byte-ordering
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131 // o: branch offset , Java byte-ordering
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132 // _: unused/ignored
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133 // w: wide bytecode
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134 //
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135 // Note: Right now the format strings are used for 2 purposes:
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136 // 1. to specify the length of the bytecode
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137 // (= number of characters in format string)
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138 // 2. to specify the bytecode attributes
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139 //
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140 // The bytecode attributes are currently used only for bytecode tracing
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141 // (see BytecodeTracer); thus if more specific format information is
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142 // used, one would also have to adjust the bytecode tracer.
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143 //
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144 // Note: For bytecodes with variable length, the format string is the empty string.
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145
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146 void Bytecodes::initialize() {
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147 if (_is_initialized) return;
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148 assert(number_of_codes <= 256, "too many bytecodes");
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149
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150 // initialize bytecode tables - didn't use static array initializers
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151 // (such as {}) so we can do additional consistency checks and init-
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152 // code is independent of actual bytecode numbering.
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153 //
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154 // Note 1: NULL for the format string means the bytecode doesn't exist
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155 // in that form.
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156 //
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157 // Note 2: The result type is T_ILLEGAL for bytecodes where the top of stack
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158 // type after execution is not only determined by the bytecode itself.
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159
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160 // Java bytecodes
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161 // bytecode bytecode name format wide f. result tp stk traps
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162 def(_nop , "nop" , "b" , NULL , T_VOID , 0, false);
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163 def(_aconst_null , "aconst_null" , "b" , NULL , T_OBJECT , 1, false);
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164 def(_iconst_m1 , "iconst_m1" , "b" , NULL , T_INT , 1, false);
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165 def(_iconst_0 , "iconst_0" , "b" , NULL , T_INT , 1, false);
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166 def(_iconst_1 , "iconst_1" , "b" , NULL , T_INT , 1, false);
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167 def(_iconst_2 , "iconst_2" , "b" , NULL , T_INT , 1, false);
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168 def(_iconst_3 , "iconst_3" , "b" , NULL , T_INT , 1, false);
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169 def(_iconst_4 , "iconst_4" , "b" , NULL , T_INT , 1, false);
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170 def(_iconst_5 , "iconst_5" , "b" , NULL , T_INT , 1, false);
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171 def(_lconst_0 , "lconst_0" , "b" , NULL , T_LONG , 2, false);
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172 def(_lconst_1 , "lconst_1" , "b" , NULL , T_LONG , 2, false);
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173 def(_fconst_0 , "fconst_0" , "b" , NULL , T_FLOAT , 1, false);
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174 def(_fconst_1 , "fconst_1" , "b" , NULL , T_FLOAT , 1, false);
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175 def(_fconst_2 , "fconst_2" , "b" , NULL , T_FLOAT , 1, false);
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176 def(_dconst_0 , "dconst_0" , "b" , NULL , T_DOUBLE , 2, false);
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177 def(_dconst_1 , "dconst_1" , "b" , NULL , T_DOUBLE , 2, false);
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178 def(_bipush , "bipush" , "bc" , NULL , T_INT , 1, false);
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179 def(_sipush , "sipush" , "bcc" , NULL , T_INT , 1, false);
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180 def(_ldc , "ldc" , "bi" , NULL , T_ILLEGAL, 1, true );
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181 def(_ldc_w , "ldc_w" , "bii" , NULL , T_ILLEGAL, 1, true );
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182 def(_ldc2_w , "ldc2_w" , "bii" , NULL , T_ILLEGAL, 2, true );
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183 def(_iload , "iload" , "bi" , "wbii" , T_INT , 1, false);
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184 def(_lload , "lload" , "bi" , "wbii" , T_LONG , 2, false);
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185 def(_fload , "fload" , "bi" , "wbii" , T_FLOAT , 1, false);
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186 def(_dload , "dload" , "bi" , "wbii" , T_DOUBLE , 2, false);
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187 def(_aload , "aload" , "bi" , "wbii" , T_OBJECT , 1, false);
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188 def(_iload_0 , "iload_0" , "b" , NULL , T_INT , 1, false);
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189 def(_iload_1 , "iload_1" , "b" , NULL , T_INT , 1, false);
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190 def(_iload_2 , "iload_2" , "b" , NULL , T_INT , 1, false);
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191 def(_iload_3 , "iload_3" , "b" , NULL , T_INT , 1, false);
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192 def(_lload_0 , "lload_0" , "b" , NULL , T_LONG , 2, false);
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193 def(_lload_1 , "lload_1" , "b" , NULL , T_LONG , 2, false);
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194 def(_lload_2 , "lload_2" , "b" , NULL , T_LONG , 2, false);
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195 def(_lload_3 , "lload_3" , "b" , NULL , T_LONG , 2, false);
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196 def(_fload_0 , "fload_0" , "b" , NULL , T_FLOAT , 1, false);
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197 def(_fload_1 , "fload_1" , "b" , NULL , T_FLOAT , 1, false);
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198 def(_fload_2 , "fload_2" , "b" , NULL , T_FLOAT , 1, false);
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199 def(_fload_3 , "fload_3" , "b" , NULL , T_FLOAT , 1, false);
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200 def(_dload_0 , "dload_0" , "b" , NULL , T_DOUBLE , 2, false);
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201 def(_dload_1 , "dload_1" , "b" , NULL , T_DOUBLE , 2, false);
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202 def(_dload_2 , "dload_2" , "b" , NULL , T_DOUBLE , 2, false);
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203 def(_dload_3 , "dload_3" , "b" , NULL , T_DOUBLE , 2, false);
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204 def(_aload_0 , "aload_0" , "b" , NULL , T_OBJECT , 1, true ); // rewriting in interpreter
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205 def(_aload_1 , "aload_1" , "b" , NULL , T_OBJECT , 1, false);
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206 def(_aload_2 , "aload_2" , "b" , NULL , T_OBJECT , 1, false);
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207 def(_aload_3 , "aload_3" , "b" , NULL , T_OBJECT , 1, false);
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208 def(_iaload , "iaload" , "b" , NULL , T_INT , -1, true );
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209 def(_laload , "laload" , "b" , NULL , T_LONG , 0, true );
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210 def(_faload , "faload" , "b" , NULL , T_FLOAT , -1, true );
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211 def(_daload , "daload" , "b" , NULL , T_DOUBLE , 0, true );
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212 def(_aaload , "aaload" , "b" , NULL , T_OBJECT , -1, true );
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213 def(_baload , "baload" , "b" , NULL , T_INT , -1, true );
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214 def(_caload , "caload" , "b" , NULL , T_INT , -1, true );
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215 def(_saload , "saload" , "b" , NULL , T_INT , -1, true );
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216 def(_istore , "istore" , "bi" , "wbii" , T_VOID , -1, false);
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217 def(_lstore , "lstore" , "bi" , "wbii" , T_VOID , -2, false);
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218 def(_fstore , "fstore" , "bi" , "wbii" , T_VOID , -1, false);
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219 def(_dstore , "dstore" , "bi" , "wbii" , T_VOID , -2, false);
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220 def(_astore , "astore" , "bi" , "wbii" , T_VOID , -1, false);
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221 def(_istore_0 , "istore_0" , "b" , NULL , T_VOID , -1, false);
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222 def(_istore_1 , "istore_1" , "b" , NULL , T_VOID , -1, false);
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223 def(_istore_2 , "istore_2" , "b" , NULL , T_VOID , -1, false);
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224 def(_istore_3 , "istore_3" , "b" , NULL , T_VOID , -1, false);
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225 def(_lstore_0 , "lstore_0" , "b" , NULL , T_VOID , -2, false);
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226 def(_lstore_1 , "lstore_1" , "b" , NULL , T_VOID , -2, false);
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227 def(_lstore_2 , "lstore_2" , "b" , NULL , T_VOID , -2, false);
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228 def(_lstore_3 , "lstore_3" , "b" , NULL , T_VOID , -2, false);
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229 def(_fstore_0 , "fstore_0" , "b" , NULL , T_VOID , -1, false);
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230 def(_fstore_1 , "fstore_1" , "b" , NULL , T_VOID , -1, false);
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231 def(_fstore_2 , "fstore_2" , "b" , NULL , T_VOID , -1, false);
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232 def(_fstore_3 , "fstore_3" , "b" , NULL , T_VOID , -1, false);
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233 def(_dstore_0 , "dstore_0" , "b" , NULL , T_VOID , -2, false);
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234 def(_dstore_1 , "dstore_1" , "b" , NULL , T_VOID , -2, false);
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235 def(_dstore_2 , "dstore_2" , "b" , NULL , T_VOID , -2, false);
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236 def(_dstore_3 , "dstore_3" , "b" , NULL , T_VOID , -2, false);
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237 def(_astore_0 , "astore_0" , "b" , NULL , T_VOID , -1, false);
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238 def(_astore_1 , "astore_1" , "b" , NULL , T_VOID , -1, false);
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239 def(_astore_2 , "astore_2" , "b" , NULL , T_VOID , -1, false);
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240 def(_astore_3 , "astore_3" , "b" , NULL , T_VOID , -1, false);
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241 def(_iastore , "iastore" , "b" , NULL , T_VOID , -3, true );
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242 def(_lastore , "lastore" , "b" , NULL , T_VOID , -4, true );
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243 def(_fastore , "fastore" , "b" , NULL , T_VOID , -3, true );
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244 def(_dastore , "dastore" , "b" , NULL , T_VOID , -4, true );
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245 def(_aastore , "aastore" , "b" , NULL , T_VOID , -3, true );
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246 def(_bastore , "bastore" , "b" , NULL , T_VOID , -3, true );
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247 def(_castore , "castore" , "b" , NULL , T_VOID , -3, true );
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248 def(_sastore , "sastore" , "b" , NULL , T_VOID , -3, true );
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249 def(_pop , "pop" , "b" , NULL , T_VOID , -1, false);
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250 def(_pop2 , "pop2" , "b" , NULL , T_VOID , -2, false);
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251 def(_dup , "dup" , "b" , NULL , T_VOID , 1, false);
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252 def(_dup_x1 , "dup_x1" , "b" , NULL , T_VOID , 1, false);
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253 def(_dup_x2 , "dup_x2" , "b" , NULL , T_VOID , 1, false);
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254 def(_dup2 , "dup2" , "b" , NULL , T_VOID , 2, false);
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255 def(_dup2_x1 , "dup2_x1" , "b" , NULL , T_VOID , 2, false);
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256 def(_dup2_x2 , "dup2_x2" , "b" , NULL , T_VOID , 2, false);
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257 def(_swap , "swap" , "b" , NULL , T_VOID , 0, false);
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258 def(_iadd , "iadd" , "b" , NULL , T_INT , -1, false);
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259 def(_ladd , "ladd" , "b" , NULL , T_LONG , -2, false);
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260 def(_fadd , "fadd" , "b" , NULL , T_FLOAT , -1, false);
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261 def(_dadd , "dadd" , "b" , NULL , T_DOUBLE , -2, false);
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262 def(_isub , "isub" , "b" , NULL , T_INT , -1, false);
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263 def(_lsub , "lsub" , "b" , NULL , T_LONG , -2, false);
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264 def(_fsub , "fsub" , "b" , NULL , T_FLOAT , -1, false);
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265 def(_dsub , "dsub" , "b" , NULL , T_DOUBLE , -2, false);
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266 def(_imul , "imul" , "b" , NULL , T_INT , -1, false);
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267 def(_lmul , "lmul" , "b" , NULL , T_LONG , -2, false);
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268 def(_fmul , "fmul" , "b" , NULL , T_FLOAT , -1, false);
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269 def(_dmul , "dmul" , "b" , NULL , T_DOUBLE , -2, false);
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270 def(_idiv , "idiv" , "b" , NULL , T_INT , -1, true );
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271 def(_ldiv , "ldiv" , "b" , NULL , T_LONG , -2, true );
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272 def(_fdiv , "fdiv" , "b" , NULL , T_FLOAT , -1, false);
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273 def(_ddiv , "ddiv" , "b" , NULL , T_DOUBLE , -2, false);
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274 def(_irem , "irem" , "b" , NULL , T_INT , -1, true );
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275 def(_lrem , "lrem" , "b" , NULL , T_LONG , -2, true );
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276 def(_frem , "frem" , "b" , NULL , T_FLOAT , -1, false);
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277 def(_drem , "drem" , "b" , NULL , T_DOUBLE , -2, false);
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278 def(_ineg , "ineg" , "b" , NULL , T_INT , 0, false);
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279 def(_lneg , "lneg" , "b" , NULL , T_LONG , 0, false);
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280 def(_fneg , "fneg" , "b" , NULL , T_FLOAT , 0, false);
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281 def(_dneg , "dneg" , "b" , NULL , T_DOUBLE , 0, false);
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282 def(_ishl , "ishl" , "b" , NULL , T_INT , -1, false);
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283 def(_lshl , "lshl" , "b" , NULL , T_LONG , -1, false);
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284 def(_ishr , "ishr" , "b" , NULL , T_INT , -1, false);
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285 def(_lshr , "lshr" , "b" , NULL , T_LONG , -1, false);
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286 def(_iushr , "iushr" , "b" , NULL , T_INT , -1, false);
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287 def(_lushr , "lushr" , "b" , NULL , T_LONG , -1, false);
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288 def(_iand , "iand" , "b" , NULL , T_INT , -1, false);
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289 def(_land , "land" , "b" , NULL , T_LONG , -2, false);
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290 def(_ior , "ior" , "b" , NULL , T_INT , -1, false);
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291 def(_lor , "lor" , "b" , NULL , T_LONG , -2, false);
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292 def(_ixor , "ixor" , "b" , NULL , T_INT , -1, false);
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293 def(_lxor , "lxor" , "b" , NULL , T_LONG , -2, false);
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294 def(_iinc , "iinc" , "bic" , "wbiicc", T_VOID , 0, false);
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295 def(_i2l , "i2l" , "b" , NULL , T_LONG , 1, false);
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296 def(_i2f , "i2f" , "b" , NULL , T_FLOAT , 0, false);
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297 def(_i2d , "i2d" , "b" , NULL , T_DOUBLE , 1, false);
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298 def(_l2i , "l2i" , "b" , NULL , T_INT , -1, false);
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299 def(_l2f , "l2f" , "b" , NULL , T_FLOAT , -1, false);
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300 def(_l2d , "l2d" , "b" , NULL , T_DOUBLE , 0, false);
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301 def(_f2i , "f2i" , "b" , NULL , T_INT , 0, false);
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302 def(_f2l , "f2l" , "b" , NULL , T_LONG , 1, false);
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303 def(_f2d , "f2d" , "b" , NULL , T_DOUBLE , 1, false);
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304 def(_d2i , "d2i" , "b" , NULL , T_INT , -1, false);
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305 def(_d2l , "d2l" , "b" , NULL , T_LONG , 0, false);
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306 def(_d2f , "d2f" , "b" , NULL , T_FLOAT , -1, false);
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307 def(_i2b , "i2b" , "b" , NULL , T_BYTE , 0, false);
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308 def(_i2c , "i2c" , "b" , NULL , T_CHAR , 0, false);
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309 def(_i2s , "i2s" , "b" , NULL , T_SHORT , 0, false);
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310 def(_lcmp , "lcmp" , "b" , NULL , T_VOID , -3, false);
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311 def(_fcmpl , "fcmpl" , "b" , NULL , T_VOID , -1, false);
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312 def(_fcmpg , "fcmpg" , "b" , NULL , T_VOID , -1, false);
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313 def(_dcmpl , "dcmpl" , "b" , NULL , T_VOID , -3, false);
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314 def(_dcmpg , "dcmpg" , "b" , NULL , T_VOID , -3, false);
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315 def(_ifeq , "ifeq" , "boo" , NULL , T_VOID , -1, false);
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316 def(_ifne , "ifne" , "boo" , NULL , T_VOID , -1, false);
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317 def(_iflt , "iflt" , "boo" , NULL , T_VOID , -1, false);
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318 def(_ifge , "ifge" , "boo" , NULL , T_VOID , -1, false);
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319 def(_ifgt , "ifgt" , "boo" , NULL , T_VOID , -1, false);
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320 def(_ifle , "ifle" , "boo" , NULL , T_VOID , -1, false);
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321 def(_if_icmpeq , "if_icmpeq" , "boo" , NULL , T_VOID , -2, false);
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322 def(_if_icmpne , "if_icmpne" , "boo" , NULL , T_VOID , -2, false);
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323 def(_if_icmplt , "if_icmplt" , "boo" , NULL , T_VOID , -2, false);
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324 def(_if_icmpge , "if_icmpge" , "boo" , NULL , T_VOID , -2, false);
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325 def(_if_icmpgt , "if_icmpgt" , "boo" , NULL , T_VOID , -2, false);
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326 def(_if_icmple , "if_icmple" , "boo" , NULL , T_VOID , -2, false);
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327 def(_if_acmpeq , "if_acmpeq" , "boo" , NULL , T_VOID , -2, false);
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328 def(_if_acmpne , "if_acmpne" , "boo" , NULL , T_VOID , -2, false);
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329 def(_goto , "goto" , "boo" , NULL , T_VOID , 0, false);
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330 def(_jsr , "jsr" , "boo" , NULL , T_INT , 0, false);
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331 def(_ret , "ret" , "bi" , "wbii" , T_VOID , 0, false);
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332 def(_tableswitch , "tableswitch" , "" , NULL , T_VOID , -1, false); // may have backward branches
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333 def(_lookupswitch , "lookupswitch" , "" , NULL , T_VOID , -1, false); // rewriting in interpreter
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334 def(_ireturn , "ireturn" , "b" , NULL , T_INT , -1, true);
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335 def(_lreturn , "lreturn" , "b" , NULL , T_LONG , -2, true);
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336 def(_freturn , "freturn" , "b" , NULL , T_FLOAT , -1, true);
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337 def(_dreturn , "dreturn" , "b" , NULL , T_DOUBLE , -2, true);
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338 def(_areturn , "areturn" , "b" , NULL , T_OBJECT , -1, true);
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339 def(_return , "return" , "b" , NULL , T_VOID , 0, true);
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340 def(_getstatic , "getstatic" , "bjj" , NULL , T_ILLEGAL, 1, true );
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341 def(_putstatic , "putstatic" , "bjj" , NULL , T_ILLEGAL, -1, true );
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342 def(_getfield , "getfield" , "bjj" , NULL , T_ILLEGAL, 0, true );
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343 def(_putfield , "putfield" , "bjj" , NULL , T_ILLEGAL, -2, true );
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344 def(_invokevirtual , "invokevirtual" , "bjj" , NULL , T_ILLEGAL, -1, true);
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345 def(_invokespecial , "invokespecial" , "bjj" , NULL , T_ILLEGAL, -1, true);
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346 def(_invokestatic , "invokestatic" , "bjj" , NULL , T_ILLEGAL, 0, true);
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347 def(_invokeinterface , "invokeinterface" , "bjj__", NULL , T_ILLEGAL, -1, true);
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348 def(_xxxunusedxxx , "xxxunusedxxx" , NULL , NULL , T_VOID , 0, false);
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349 def(_new , "new" , "bii" , NULL , T_OBJECT , 1, true );
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350 def(_newarray , "newarray" , "bc" , NULL , T_OBJECT , 0, true );
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351 def(_anewarray , "anewarray" , "bii" , NULL , T_OBJECT , 0, true );
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352 def(_arraylength , "arraylength" , "b" , NULL , T_VOID , 0, true );
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353 def(_athrow , "athrow" , "b" , NULL , T_VOID , -1, true );
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354 def(_checkcast , "checkcast" , "bii" , NULL , T_OBJECT , 0, true );
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355 def(_instanceof , "instanceof" , "bii" , NULL , T_INT , 0, true );
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356 def(_monitorenter , "monitorenter" , "b" , NULL , T_VOID , -1, true );
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357 def(_monitorexit , "monitorexit" , "b" , NULL , T_VOID , -1, true );
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358 def(_wide , "wide" , "" , NULL , T_VOID , 0, false);
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359 def(_multianewarray , "multianewarray" , "biic" , NULL , T_OBJECT , 1, true );
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360 def(_ifnull , "ifnull" , "boo" , NULL , T_VOID , -1, false);
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361 def(_ifnonnull , "ifnonnull" , "boo" , NULL , T_VOID , -1, false);
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362 def(_goto_w , "goto_w" , "boooo", NULL , T_VOID , 0, false);
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363 def(_jsr_w , "jsr_w" , "boooo", NULL , T_INT , 0, false);
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364 def(_breakpoint , "breakpoint" , "" , NULL , T_VOID , 0, true);
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365
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366 // JVM bytecodes
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367 // bytecode bytecode name format wide f. result tp stk traps std code
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368
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369 def(_fast_agetfield , "fast_agetfield" , "bjj" , NULL , T_OBJECT , 0, true , _getfield );
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370 def(_fast_bgetfield , "fast_bgetfield" , "bjj" , NULL , T_INT , 0, true , _getfield );
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371 def(_fast_cgetfield , "fast_cgetfield" , "bjj" , NULL , T_CHAR , 0, true , _getfield );
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372 def(_fast_dgetfield , "fast_dgetfield" , "bjj" , NULL , T_DOUBLE , 0, true , _getfield );
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373 def(_fast_fgetfield , "fast_fgetfield" , "bjj" , NULL , T_FLOAT , 0, true , _getfield );
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374 def(_fast_igetfield , "fast_igetfield" , "bjj" , NULL , T_INT , 0, true , _getfield );
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375 def(_fast_lgetfield , "fast_lgetfield" , "bjj" , NULL , T_LONG , 0, true , _getfield );
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376 def(_fast_sgetfield , "fast_sgetfield" , "bjj" , NULL , T_SHORT , 0, true , _getfield );
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377
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378 def(_fast_aputfield , "fast_aputfield" , "bjj" , NULL , T_OBJECT , 0, true , _putfield );
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379 def(_fast_bputfield , "fast_bputfield" , "bjj" , NULL , T_INT , 0, true , _putfield );
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380 def(_fast_cputfield , "fast_cputfield" , "bjj" , NULL , T_CHAR , 0, true , _putfield );
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381 def(_fast_dputfield , "fast_dputfield" , "bjj" , NULL , T_DOUBLE , 0, true , _putfield );
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382 def(_fast_fputfield , "fast_fputfield" , "bjj" , NULL , T_FLOAT , 0, true , _putfield );
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383 def(_fast_iputfield , "fast_iputfield" , "bjj" , NULL , T_INT , 0, true , _putfield );
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384 def(_fast_lputfield , "fast_lputfield" , "bjj" , NULL , T_LONG , 0, true , _putfield );
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385 def(_fast_sputfield , "fast_sputfield" , "bjj" , NULL , T_SHORT , 0, true , _putfield );
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386
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387 def(_fast_aload_0 , "fast_aload_0" , "b" , NULL , T_OBJECT , 1, true , _aload_0 );
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388 def(_fast_iaccess_0 , "fast_iaccess_0" , "b_jj" , NULL , T_INT , 1, true , _aload_0 );
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389 def(_fast_aaccess_0 , "fast_aaccess_0" , "b_jj" , NULL , T_OBJECT , 1, true , _aload_0 );
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390 def(_fast_faccess_0 , "fast_faccess_0" , "b_jj" , NULL , T_OBJECT , 1, true , _aload_0 );
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391
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392 def(_fast_iload , "fast_iload" , "bi" , NULL , T_INT , 1, false, _iload);
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393 def(_fast_iload2 , "fast_iload2" , "bi_i" , NULL , T_INT , 2, false, _iload);
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394 def(_fast_icaload , "fast_icaload" , "bi_" , NULL , T_INT , 0, false, _iload);
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395
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396 // Faster method invocation.
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397 def(_fast_invokevfinal , "fast_invokevfinal" , "bjj" , NULL , T_ILLEGAL, -1, true, _invokevirtual );
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398
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399 def(_fast_linearswitch , "fast_linearswitch" , "" , NULL , T_VOID , -1, false, _lookupswitch );
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400 def(_fast_binaryswitch , "fast_binaryswitch" , "" , NULL , T_VOID , -1, false, _lookupswitch );
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401
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402 def(_return_register_finalizer , "return_register_finalizer" , "b" , NULL , T_VOID , 0, true, _return);
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403
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404 def(_shouldnotreachhere , "_shouldnotreachhere" , "b" , NULL , T_VOID , 0, false);
|
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405
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406 // platform specific JVM bytecodes
|
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407 pd_initialize();
|
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408
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409 // compare can_trap information for each bytecode with the
|
|
410 // can_trap information for the corresponding base bytecode
|
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411 // (if a rewritten bytecode can trap, so must the base bytecode)
|
|
412 #ifdef ASSERT
|
|
413 { for (int i = 0; i < number_of_codes; i++) {
|
|
414 if (is_defined(i)) {
|
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415 Code code = cast(i);
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416 Code java = java_code(code);
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|
417 if (can_trap(code) && !can_trap(java)) fatal2("%s can trap => %s can trap, too", name(code), name(java));
|
|
418 }
|
|
419 }
|
|
420 }
|
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421 #endif
|
|
422
|
|
423 // initialization successful
|
|
424 _is_initialized = true;
|
|
425 }
|
|
426
|
|
427
|
|
428 void bytecodes_init() {
|
|
429 Bytecodes::initialize();
|
|
430 }
|
|
431
|
|
432 // Restore optimization
|
|
433 #ifdef _M_AMD64
|
|
434 #pragma optimize ("", on)
|
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435 #endif
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