/* * Copyright (C) 2008, 2009 Apple Inc. All rights reserved. * Copyright (C) 2008 Cameron Zwarich * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of * its contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef Opcode_h #define Opcode_h #include #include #include namespace JSC { #define FOR_EACH_OPCODE_ID(macro) \ macro(op_enter, 1) \ macro(op_enter_with_activation, 2) \ macro(op_init_arguments, 2) \ macro(op_create_arguments, 2) \ macro(op_create_this, 3) \ macro(op_get_callee, 2) \ macro(op_convert_this, 2) \ \ macro(op_new_object, 2) \ macro(op_new_array, 4) \ macro(op_new_regexp, 3) \ macro(op_mov, 3) \ \ macro(op_not, 3) \ macro(op_eq, 4) \ macro(op_eq_null, 3) \ macro(op_neq, 4) \ macro(op_neq_null, 3) \ macro(op_stricteq, 4) \ macro(op_nstricteq, 4) \ macro(op_less, 4) \ macro(op_lesseq, 4) \ \ macro(op_pre_inc, 2) \ macro(op_pre_dec, 2) \ macro(op_post_inc, 3) \ macro(op_post_dec, 3) \ macro(op_to_jsnumber, 3) \ macro(op_negate, 3) \ macro(op_add, 5) \ macro(op_mul, 5) \ macro(op_div, 5) \ macro(op_mod, 4) \ macro(op_sub, 5) \ \ macro(op_lshift, 4) \ macro(op_rshift, 4) \ macro(op_urshift, 4) \ macro(op_bitand, 5) \ macro(op_bitxor, 5) \ macro(op_bitor, 5) \ macro(op_bitnot, 3) \ \ macro(op_instanceof, 5) \ macro(op_typeof, 3) \ macro(op_is_undefined, 3) \ macro(op_is_boolean, 3) \ macro(op_is_number, 3) \ macro(op_is_string, 3) \ macro(op_is_object, 3) \ macro(op_is_function, 3) \ macro(op_in, 4) \ \ macro(op_resolve, 3) \ macro(op_resolve_skip, 4) \ macro(op_resolve_global, 5) \ macro(op_resolve_global_dynamic, 6) \ macro(op_get_scoped_var, 4) \ macro(op_put_scoped_var, 4) \ macro(op_get_global_var, 3) \ macro(op_put_global_var, 3) \ macro(op_resolve_base, 3) \ macro(op_resolve_with_base, 4) \ macro(op_get_by_id, 8) \ macro(op_get_by_id_self, 8) \ macro(op_get_by_id_self_list, 8) \ macro(op_get_by_id_proto, 8) \ macro(op_get_by_id_proto_list, 8) \ macro(op_get_by_id_chain, 8) \ macro(op_get_by_id_getter_self, 8) \ macro(op_get_by_id_getter_self_list, 8) \ macro(op_get_by_id_getter_proto, 8) \ macro(op_get_by_id_getter_proto_list, 8) \ macro(op_get_by_id_getter_chain, 8) \ macro(op_get_by_id_custom_self, 8) \ macro(op_get_by_id_custom_self_list, 8) \ macro(op_get_by_id_custom_proto, 8) \ macro(op_get_by_id_custom_proto_list, 8) \ macro(op_get_by_id_custom_chain, 8) \ macro(op_get_by_id_generic, 8) \ macro(op_get_array_length, 8) \ macro(op_get_string_length, 8) \ macro(op_put_by_id, 9) \ macro(op_put_by_id_transition, 9) \ macro(op_put_by_id_replace, 9) \ macro(op_put_by_id_generic, 9) \ macro(op_del_by_id, 4) \ macro(op_get_by_val, 4) \ macro(op_get_by_pname, 7) \ macro(op_put_by_val, 4) \ macro(op_del_by_val, 4) \ macro(op_put_by_index, 4) \ macro(op_put_getter, 4) \ macro(op_put_setter, 4) \ \ macro(op_jmp, 2) \ macro(op_jtrue, 3) \ macro(op_jfalse, 3) \ macro(op_jeq_null, 3) \ macro(op_jneq_null, 3) \ macro(op_jneq_ptr, 4) \ macro(op_jnless, 4) \ macro(op_jnlesseq, 4) \ macro(op_jless, 4) \ macro(op_jlesseq, 4) \ macro(op_jmp_scopes, 3) \ macro(op_loop, 2) \ macro(op_loop_if_true, 3) \ macro(op_loop_if_false, 3) \ macro(op_loop_if_less, 4) \ macro(op_loop_if_lesseq, 4) \ macro(op_switch_imm, 4) \ macro(op_switch_char, 4) \ macro(op_switch_string, 4) \ \ macro(op_new_func, 3) \ macro(op_new_func_exp, 3) \ macro(op_call, 4) \ macro(op_call_eval, 4) \ macro(op_call_varargs, 4) \ macro(op_load_varargs, 3) \ macro(op_tear_off_activation, 3) \ macro(op_tear_off_arguments, 2) \ macro(op_ret, 2) \ macro(op_call_put_result, 2) \ macro(op_ret_object_or_this, 3) \ macro(op_method_check, 1) \ \ macro(op_construct, 4) \ macro(op_strcat, 4) \ macro(op_to_primitive, 3) \ \ macro(op_get_pnames, 6) \ macro(op_next_pname, 7) \ \ macro(op_push_scope, 2) \ macro(op_pop_scope, 1) \ macro(op_push_new_scope, 4) \ \ macro(op_catch, 2) \ macro(op_throw, 2) \ macro(op_new_error, 4) \ \ macro(op_jsr, 3) \ macro(op_sret, 2) \ \ macro(op_debug, 4) \ macro(op_profile_will_call, 2) \ macro(op_profile_did_call, 2) \ \ macro(op_end, 2) // end must be the last opcode in the list #define OPCODE_ID_ENUM(opcode, length) opcode, typedef enum { FOR_EACH_OPCODE_ID(OPCODE_ID_ENUM) } OpcodeID; #undef OPCODE_ID_ENUM const int numOpcodeIDs = op_end + 1; #define OPCODE_ID_LENGTHS(id, length) const int id##_length = length; FOR_EACH_OPCODE_ID(OPCODE_ID_LENGTHS); #undef OPCODE_ID_LENGTHS #define OPCODE_LENGTH(opcode) opcode##_length #define OPCODE_ID_LENGTH_MAP(opcode, length) length, const int opcodeLengths[numOpcodeIDs] = { FOR_EACH_OPCODE_ID(OPCODE_ID_LENGTH_MAP) }; #undef OPCODE_ID_LENGTH_MAP #define VERIFY_OPCODE_ID(id, size) COMPILE_ASSERT(id <= op_end, ASSERT_THAT_JS_OPCODE_IDS_ARE_VALID); FOR_EACH_OPCODE_ID(VERIFY_OPCODE_ID); #undef VERIFY_OPCODE_ID #if ENABLE(COMPUTED_GOTO_INTERPRETER) #if COMPILER(RVCT) || COMPILER(INTEL) typedef void* Opcode; #else typedef const void* Opcode; #endif #else typedef OpcodeID Opcode; #endif #if ENABLE(OPCODE_SAMPLING) || ENABLE(CODEBLOCK_SAMPLING) || ENABLE(OPCODE_STATS) #define PADDING_STRING " " #define PADDING_STRING_LENGTH static_cast(strlen(PADDING_STRING)) extern const char* const opcodeNames[]; inline const char* padOpcodeName(OpcodeID op, unsigned width) { unsigned pad = width - strlen(opcodeNames[op]); pad = std::min(pad, PADDING_STRING_LENGTH); return PADDING_STRING + PADDING_STRING_LENGTH - pad; } #undef PADDING_STRING_LENGTH #undef PADDING_STRING #endif #if ENABLE(OPCODE_STATS) struct OpcodeStats { OpcodeStats(); ~OpcodeStats(); static long long opcodeCounts[numOpcodeIDs]; static long long opcodePairCounts[numOpcodeIDs][numOpcodeIDs]; static int lastOpcode; static void recordInstruction(int opcode); static void resetLastInstruction(); }; #endif inline size_t opcodeLength(OpcodeID opcode) { switch (opcode) { #define OPCODE_ID_LENGTHS(id, length) case id: return OPCODE_LENGTH(id); FOR_EACH_OPCODE_ID(OPCODE_ID_LENGTHS) #undef OPCODE_ID_LENGTHS } ASSERT_NOT_REACHED(); return 0; } } // namespace JSC #endif // Opcode_h