1/* 2 * Copyright (C) 2008, 2009, 2013 Apple Inc. All rights reserved. 3 * Copyright (C) 2008 Cameron Zwarich <cwzwarich@uwaterloo.ca> 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of 15 * its contributors may be used to endorse or promote products derived 16 * from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 19 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 21 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 25 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30#ifndef Opcode_h 31#define Opcode_h 32 33#include "LLIntOpcode.h" 34 35#include <algorithm> 36#include <string.h> 37 38#include <wtf/Assertions.h> 39 40namespace JSC { 41 42#define FOR_EACH_CORE_OPCODE_ID_WITH_EXTENSION(macro, extension__) \ 43 macro(op_enter, 1) \ 44 macro(op_create_activation, 2) \ 45 macro(op_init_lazy_reg, 2) \ 46 macro(op_create_arguments, 2) \ 47 macro(op_create_this, 4) \ 48 macro(op_get_callee, 3) \ 49 macro(op_convert_this, 3) \ 50 \ 51 macro(op_new_object, 4) \ 52 macro(op_new_array, 5) \ 53 macro(op_new_array_with_size, 4) \ 54 macro(op_new_array_buffer, 5) \ 55 macro(op_new_regexp, 3) \ 56 macro(op_mov, 3) \ 57 \ 58 macro(op_not, 3) \ 59 macro(op_eq, 4) \ 60 macro(op_eq_null, 3) \ 61 macro(op_neq, 4) \ 62 macro(op_neq_null, 3) \ 63 macro(op_stricteq, 4) \ 64 macro(op_nstricteq, 4) \ 65 macro(op_less, 4) \ 66 macro(op_lesseq, 4) \ 67 macro(op_greater, 4) \ 68 macro(op_greatereq, 4) \ 69 \ 70 macro(op_inc, 2) \ 71 macro(op_dec, 2) \ 72 macro(op_to_number, 3) \ 73 macro(op_negate, 3) \ 74 macro(op_add, 5) \ 75 macro(op_mul, 5) \ 76 macro(op_div, 5) \ 77 macro(op_mod, 4) \ 78 macro(op_sub, 5) \ 79 \ 80 macro(op_lshift, 4) \ 81 macro(op_rshift, 4) \ 82 macro(op_urshift, 4) \ 83 macro(op_bitand, 5) \ 84 macro(op_bitxor, 5) \ 85 macro(op_bitor, 5) \ 86 \ 87 macro(op_check_has_instance, 5) \ 88 macro(op_instanceof, 4) \ 89 macro(op_typeof, 3) \ 90 macro(op_is_undefined, 3) \ 91 macro(op_is_boolean, 3) \ 92 macro(op_is_number, 3) \ 93 macro(op_is_string, 3) \ 94 macro(op_is_object, 3) \ 95 macro(op_is_function, 3) \ 96 macro(op_in, 4) \ 97 \ 98 macro(op_get_scoped_var, 5) /* has value profiling */ \ 99 macro(op_put_scoped_var, 4) \ 100 \ 101 macro(op_resolve, 5) /* has value profiling */ \ 102 macro(op_resolve_global_property, 5) /* has value profiling */ \ 103 macro(op_resolve_global_var, 5) /* has value profiling */ \ 104 macro(op_resolve_scoped_var, 5) /* has value profiling */ \ 105 macro(op_resolve_scoped_var_on_top_scope, 5) /* has value profiling */ \ 106 macro(op_resolve_scoped_var_with_top_scope_check, 5) /* has value profiling */ \ 107 \ 108 macro(op_resolve_base_to_global, 7) /* has value profiling */ \ 109 macro(op_resolve_base_to_global_dynamic, 7) /* has value profiling */ \ 110 macro(op_resolve_base_to_scope, 7) /* has value profiling */ \ 111 macro(op_resolve_base_to_scope_with_top_scope_check, 7) /* has value profiling */ \ 112 macro(op_resolve_base, 7) /* has value profiling */ \ 113 \ 114 macro(op_resolve_with_base, 7) /* has value profiling */ \ 115 \ 116 macro(op_resolve_with_this, 6) /* has value profiling */ \ 117 \ 118 macro(op_put_to_base, 5) \ 119 macro(op_put_to_base_variable, 5) \ 120 \ 121 macro(op_init_global_const_nop, 5) \ 122 macro(op_init_global_const, 5) \ 123 macro(op_init_global_const_check, 5) \ 124 macro(op_get_by_id, 9) /* has value profiling */ \ 125 macro(op_get_by_id_out_of_line, 9) /* has value profiling */ \ 126 macro(op_get_by_id_self, 9) /* has value profiling */ \ 127 macro(op_get_by_id_proto, 9) /* has value profiling */ \ 128 macro(op_get_by_id_chain, 9) /* has value profiling */ \ 129 macro(op_get_by_id_getter_self, 9) /* has value profiling */ \ 130 macro(op_get_by_id_getter_proto, 9) /* has value profiling */ \ 131 macro(op_get_by_id_getter_chain, 9) /* has value profiling */ \ 132 macro(op_get_by_id_custom_self, 9) /* has value profiling */ \ 133 macro(op_get_by_id_custom_proto, 9) /* has value profiling */ \ 134 macro(op_get_by_id_custom_chain, 9) /* has value profiling */ \ 135 macro(op_get_by_id_generic, 9) /* has value profiling */ \ 136 macro(op_get_array_length, 9) /* has value profiling */ \ 137 macro(op_get_string_length, 9) /* has value profiling */ \ 138 macro(op_get_arguments_length, 4) \ 139 macro(op_put_by_id, 9) \ 140 macro(op_put_by_id_out_of_line, 9) \ 141 macro(op_put_by_id_transition, 9) \ 142 macro(op_put_by_id_transition_direct, 9) \ 143 macro(op_put_by_id_transition_direct_out_of_line, 9) \ 144 macro(op_put_by_id_transition_normal, 9) \ 145 macro(op_put_by_id_transition_normal_out_of_line, 9) \ 146 macro(op_put_by_id_replace, 9) \ 147 macro(op_put_by_id_generic, 9) \ 148 macro(op_del_by_id, 4) \ 149 macro(op_get_by_val, 6) /* has value profiling */ \ 150 macro(op_get_argument_by_val, 6) /* must be the same size as op_get_by_val */ \ 151 macro(op_get_by_pname, 7) \ 152 macro(op_put_by_val, 5) \ 153 macro(op_del_by_val, 4) \ 154 macro(op_put_by_index, 4) \ 155 macro(op_put_getter_setter, 5) \ 156 \ 157 macro(op_jmp, 2) \ 158 macro(op_jtrue, 3) \ 159 macro(op_jfalse, 3) \ 160 macro(op_jeq_null, 3) \ 161 macro(op_jneq_null, 3) \ 162 macro(op_jneq_ptr, 4) \ 163 macro(op_jless, 4) \ 164 macro(op_jlesseq, 4) \ 165 macro(op_jgreater, 4) \ 166 macro(op_jgreatereq, 4) \ 167 macro(op_jnless, 4) \ 168 macro(op_jnlesseq, 4) \ 169 macro(op_jngreater, 4) \ 170 macro(op_jngreatereq, 4) \ 171 \ 172 macro(op_loop_hint, 1) \ 173 \ 174 macro(op_switch_imm, 4) \ 175 macro(op_switch_char, 4) \ 176 macro(op_switch_string, 4) \ 177 \ 178 macro(op_new_func, 4) \ 179 macro(op_new_func_exp, 3) \ 180 macro(op_call, 6) \ 181 macro(op_call_eval, 6) \ 182 macro(op_call_varargs, 5) \ 183 macro(op_tear_off_activation, 2) \ 184 macro(op_tear_off_arguments, 3) \ 185 macro(op_ret, 2) \ 186 macro(op_call_put_result, 3) /* has value profiling */ \ 187 macro(op_ret_object_or_this, 3) \ 188 \ 189 macro(op_construct, 6) \ 190 macro(op_strcat, 4) \ 191 macro(op_to_primitive, 3) \ 192 \ 193 macro(op_get_pnames, 6) \ 194 macro(op_next_pname, 7) \ 195 \ 196 macro(op_push_with_scope, 2) \ 197 macro(op_pop_scope, 1) \ 198 macro(op_push_name_scope, 4) \ 199 \ 200 macro(op_catch, 2) \ 201 macro(op_throw, 2) \ 202 macro(op_throw_static_error, 3) \ 203 \ 204 macro(op_debug, 5) \ 205 macro(op_profile_will_call, 2) \ 206 macro(op_profile_did_call, 2) \ 207 \ 208 extension__ \ 209 \ 210 macro(op_end, 2) // end must be the last opcode in the list 211 212#define FOR_EACH_CORE_OPCODE_ID(macro) \ 213 FOR_EACH_CORE_OPCODE_ID_WITH_EXTENSION(macro, /* No extension */ ) 214 215#define FOR_EACH_OPCODE_ID(macro) \ 216 FOR_EACH_CORE_OPCODE_ID_WITH_EXTENSION( \ 217 macro, \ 218 FOR_EACH_LLINT_OPCODE_EXTENSION(macro) \ 219 ) 220 221 222#define OPCODE_ID_ENUM(opcode, length) opcode, 223 typedef enum { FOR_EACH_OPCODE_ID(OPCODE_ID_ENUM) } OpcodeID; 224#undef OPCODE_ID_ENUM 225 226const int maxOpcodeLength = 9; 227const int numOpcodeIDs = op_end + 1; 228 229#define OPCODE_ID_LENGTHS(id, length) const int id##_length = length; 230 FOR_EACH_OPCODE_ID(OPCODE_ID_LENGTHS); 231#undef OPCODE_ID_LENGTHS 232 233#define OPCODE_LENGTH(opcode) opcode##_length 234 235#define OPCODE_ID_LENGTH_MAP(opcode, length) length, 236 const int opcodeLengths[numOpcodeIDs] = { FOR_EACH_OPCODE_ID(OPCODE_ID_LENGTH_MAP) }; 237#undef OPCODE_ID_LENGTH_MAP 238 239#define VERIFY_OPCODE_ID(id, size) COMPILE_ASSERT(id <= op_end, ASSERT_THAT_JS_OPCODE_IDS_ARE_VALID); 240 FOR_EACH_OPCODE_ID(VERIFY_OPCODE_ID); 241#undef VERIFY_OPCODE_ID 242 243#if ENABLE(COMPUTED_GOTO_OPCODES) 244typedef void* Opcode; 245#else 246typedef OpcodeID Opcode; 247#endif 248 249#define PADDING_STRING " " 250#define PADDING_STRING_LENGTH static_cast<unsigned>(strlen(PADDING_STRING)) 251 252extern const char* const opcodeNames[]; 253 254inline const char* padOpcodeName(OpcodeID op, unsigned width) 255{ 256 unsigned pad = width - strlen(opcodeNames[op]); 257 pad = std::min(pad, PADDING_STRING_LENGTH); 258 return PADDING_STRING + PADDING_STRING_LENGTH - pad; 259} 260 261#undef PADDING_STRING_LENGTH 262#undef PADDING_STRING 263 264#if ENABLE(OPCODE_STATS) 265 266struct OpcodeStats { 267 OpcodeStats(); 268 ~OpcodeStats(); 269 static long long opcodeCounts[numOpcodeIDs]; 270 static long long opcodePairCounts[numOpcodeIDs][numOpcodeIDs]; 271 static int lastOpcode; 272 273 static void recordInstruction(int opcode); 274 static void resetLastInstruction(); 275}; 276 277#endif 278 279inline size_t opcodeLength(OpcodeID opcode) 280{ 281 switch (opcode) { 282#define OPCODE_ID_LENGTHS(id, length) case id: return OPCODE_LENGTH(id); 283 FOR_EACH_OPCODE_ID(OPCODE_ID_LENGTHS) 284#undef OPCODE_ID_LENGTHS 285 } 286 RELEASE_ASSERT_NOT_REACHED(); 287 return 0; 288} 289 290} // namespace JSC 291 292#endif // Opcode_h 293