| 1 | /*
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| 2 | * Copyright (C) 2008 Apple Inc. All rights reserved.
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| 3 | * Copyright (C) 2008 Cameron Zwarich <[email protected]>
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * 1. Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * 2. Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
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| 15 | * its contributors may be used to endorse or promote products derived
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| 16 | * from this software without specific prior written permission.
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| 17 | *
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| 18 | * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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| 19 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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| 20 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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| 21 | * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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| 22 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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| 23 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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| 24 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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| 25 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 28 | */
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| 29 |
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| 30 | #ifndef Opcodes_h
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| 31 | #define Opcodes_h
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| 32 |
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| 33 | #include <algorithm>
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| 34 | #include <string.h>
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| 35 |
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| 36 | #include <wtf/Assertions.h>
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| 37 |
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| 38 | namespace JSC {
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| 39 |
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| 40 | #define FOR_EACH_OPCODE_ID(macro) \
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| 41 | macro(op_enter) \
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| 42 | macro(op_enter_with_activation) \
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| 43 | macro(op_create_arguments) \
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| 44 | macro(op_convert_this) \
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| 45 | \
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| 46 | macro(op_unexpected_load) \
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| 47 | macro(op_new_object) \
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| 48 | macro(op_new_array) \
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| 49 | macro(op_new_regexp) \
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| 50 | macro(op_mov) \
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| 51 | \
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| 52 | macro(op_not) \
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| 53 | macro(op_eq) \
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| 54 | macro(op_eq_null) \
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| 55 | macro(op_neq) \
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| 56 | macro(op_neq_null) \
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| 57 | macro(op_stricteq) \
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| 58 | macro(op_nstricteq) \
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| 59 | macro(op_less) \
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| 60 | macro(op_lesseq) \
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| 61 | \
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| 62 | macro(op_pre_inc) \
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| 63 | macro(op_pre_dec) \
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| 64 | macro(op_post_inc) \
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| 65 | macro(op_post_dec) \
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| 66 | macro(op_to_jsnumber) \
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| 67 | macro(op_negate) \
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| 68 | macro(op_add) \
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| 69 | macro(op_mul) \
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| 70 | macro(op_div) \
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| 71 | macro(op_mod) \
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| 72 | macro(op_sub) \
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| 73 | \
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| 74 | macro(op_lshift) \
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| 75 | macro(op_rshift) \
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| 76 | macro(op_urshift) \
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| 77 | macro(op_bitand) \
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| 78 | macro(op_bitxor) \
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| 79 | macro(op_bitor) \
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| 80 | macro(op_bitnot) \
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| 81 | \
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| 82 | macro(op_instanceof) \
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| 83 | macro(op_typeof) \
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| 84 | macro(op_is_undefined) \
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| 85 | macro(op_is_boolean) \
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| 86 | macro(op_is_number) \
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| 87 | macro(op_is_string) \
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| 88 | macro(op_is_object) \
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| 89 | macro(op_is_function) \
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| 90 | macro(op_in) \
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| 91 | \
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| 92 | macro(op_resolve) \
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| 93 | macro(op_resolve_skip) \
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| 94 | macro(op_resolve_global) \
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| 95 | macro(op_get_scoped_var) \
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| 96 | macro(op_put_scoped_var) \
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| 97 | macro(op_get_global_var) \
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| 98 | macro(op_put_global_var) \
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| 99 | macro(op_resolve_base) \
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| 100 | macro(op_resolve_with_base) \
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| 101 | macro(op_resolve_func) \
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| 102 | macro(op_get_by_id) \
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| 103 | macro(op_get_by_id_self) \
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| 104 | macro(op_get_by_id_proto) \
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| 105 | macro(op_get_by_id_chain) \
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| 106 | macro(op_get_by_id_generic) \
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| 107 | macro(op_get_array_length) \
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| 108 | macro(op_get_string_length) \
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| 109 | macro(op_put_by_id) \
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| 110 | macro(op_put_by_id_transition) \
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| 111 | macro(op_put_by_id_replace) \
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| 112 | macro(op_put_by_id_generic) \
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| 113 | macro(op_del_by_id) \
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| 114 | macro(op_get_by_val) \
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| 115 | macro(op_put_by_val) \
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| 116 | macro(op_del_by_val) \
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| 117 | macro(op_put_by_index) \
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| 118 | macro(op_put_getter) \
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| 119 | macro(op_put_setter) \
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| 120 | \
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| 121 | macro(op_jmp) \
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| 122 | macro(op_jtrue) \
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| 123 | macro(op_jfalse) \
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| 124 | macro(op_jeq_null) \
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| 125 | macro(op_jneq_null) \
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| 126 | macro(op_jnless) \
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| 127 | macro(op_jmp_scopes) \
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| 128 | macro(op_loop) \
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| 129 | macro(op_loop_if_true) \
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| 130 | macro(op_loop_if_less) \
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| 131 | macro(op_loop_if_lesseq) \
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| 132 | macro(op_switch_imm) \
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| 133 | macro(op_switch_char) \
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| 134 | macro(op_switch_string) \
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| 135 | \
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| 136 | macro(op_new_func) \
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| 137 | macro(op_new_func_exp) \
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| 138 | macro(op_call) \
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| 139 | macro(op_call_eval) \
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| 140 | macro(op_tear_off_activation) \
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| 141 | macro(op_tear_off_arguments) \
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| 142 | macro(op_ret) \
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| 143 | \
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| 144 | macro(op_construct) \
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| 145 | macro(op_construct_verify) \
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| 146 | \
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| 147 | macro(op_get_pnames) \
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| 148 | macro(op_next_pname) \
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| 149 | \
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| 150 | macro(op_push_scope) \
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| 151 | macro(op_pop_scope) \
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| 152 | macro(op_push_new_scope) \
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| 153 | \
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| 154 | macro(op_catch) \
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| 155 | macro(op_throw) \
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| 156 | macro(op_new_error) \
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| 157 | \
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| 158 | macro(op_jsr) \
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| 159 | macro(op_sret) \
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| 160 | \
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| 161 | macro(op_debug) \
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| 162 | macro(op_profile_will_call) \
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| 163 | macro(op_profile_did_call) \
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| 164 | \
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| 165 | macro(op_end) // end must be the last opcode in the list
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| 166 |
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| 167 | #define OPCODE_ID_ENUM(opcode) opcode,
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| 168 | typedef enum { FOR_EACH_OPCODE_ID(OPCODE_ID_ENUM) } OpcodeID;
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| 169 | #undef OPCODE_ID_ENUM
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| 170 |
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| 171 | const int numOpcodeIDs = op_end + 1;
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| 172 |
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| 173 | #define VERIFY_OPCODE_ID(id) COMPILE_ASSERT(id <= op_end, ASSERT_THAT_JS_OPCODE_IDS_ARE_VALID);
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| 174 | FOR_EACH_OPCODE_ID(VERIFY_OPCODE_ID);
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| 175 | #undef VERIFY_OPCODE_ID
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| 176 |
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| 177 | #if HAVE(COMPUTED_GOTO)
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| 178 | typedef void* Opcode;
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| 179 | #else
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| 180 | typedef OpcodeID Opcode;
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| 181 | #endif
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| 182 |
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| 183 | #if ENABLE(OPCODE_SAMPLING) || ENABLE(CODEBLOCK_SAMPLING) || ENABLE(OPCODE_STATS)
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| 184 |
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| 185 | #define PADDING_STRING " "
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| 186 | #define PADDING_STRING_LENGTH static_cast<unsigned>(strlen(PADDING_STRING))
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| 187 |
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| 188 | extern const char* const opcodeNames[];
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| 189 |
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| 190 | inline const char* padOpcodeName(OpcodeID op, unsigned width)
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| 191 | {
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| 192 | unsigned pad = width - strlen(opcodeNames[op]);
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| 193 | pad = std::min(pad, PADDING_STRING_LENGTH);
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| 194 | return PADDING_STRING + PADDING_STRING_LENGTH - pad;
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| 195 | }
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| 196 |
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| 197 | #undef PADDING_STRING_LENGTH
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| 198 | #undef PADDING_STRING
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| 199 |
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| 200 | #endif
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| 201 |
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| 202 | #if ENABLE(OPCODE_STATS)
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| 203 |
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| 204 | struct OpcodeStats {
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| 205 | OpcodeStats();
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| 206 | ~OpcodeStats();
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| 207 | static long long opcodeCounts[numOpcodeIDs];
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| 208 | static long long opcodePairCounts[numOpcodeIDs][numOpcodeIDs];
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| 209 | static int lastOpcode;
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| 210 |
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| 211 | static void recordInstruction(int opcode);
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| 212 | static void resetLastInstruction();
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| 213 | };
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| 214 |
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| 215 | #endif
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| 216 |
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| 217 | } // namespace JSC
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| 218 |
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| 219 | #endif // Opcodes_h
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