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