| /* |
| * Copyright (C) 2008, 2009 Apple Inc. All rights reserved. |
| * Copyright (C) 2008 Cameron Zwarich <cwzwarich@uwaterloo.ca> |
| * |
| * 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 <algorithm> |
| #include <string.h> |
| |
| #include <wtf/Assertions.h> |
| |
| namespace JSC { |
| |
| #define FOR_EACH_OPCODE_ID(macro) \ |
| macro(op_enter, 1) \ |
| macro(op_create_activation, 2) \ |
| macro(op_init_lazy_reg, 2) \ |
| macro(op_create_arguments, 2) \ |
| macro(op_create_this, 3) \ |
| macro(op_get_callee, 2) \ |
| macro(op_convert_this, 2) \ |
| macro(op_convert_this_strict, 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_check_has_instance, 2) \ |
| 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, 4) \ |
| macro(op_ensure_property_exists, 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_get_arguments_length, 4) \ |
| 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_argument_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, 4) \ |
| macro(op_new_func_exp, 3) \ |
| macro(op_call, 4) \ |
| macro(op_call_eval, 4) \ |
| macro(op_call_varargs, 4) \ |
| macro(op_load_varargs, 4) \ |
| 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_throw_reference_error, 2) \ |
| \ |
| 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<unsigned>(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 |
