1 | /* |
2 | * Copyright (C) 2008, 2009 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 <algorithm> |
34 | #include <string.h> |
35 | |
36 | #include <wtf/Assertions.h> |
37 | |
38 | namespace JSC { |
39 | |
40 | #define FOR_EACH_OPCODE_ID(macro) \ |
41 | macro(op_enter, 1) \ |
42 | macro(op_enter_with_activation, 2) \ |
43 | macro(op_init_arguments, 1) \ |
44 | macro(op_create_arguments, 1) \ |
45 | macro(op_convert_this, 2) \ |
46 | \ |
47 | macro(op_new_object, 2) \ |
48 | macro(op_new_array, 4) \ |
49 | macro(op_new_regexp, 3) \ |
50 | macro(op_mov, 3) \ |
51 | \ |
52 | macro(op_not, 3) \ |
53 | macro(op_eq, 4) \ |
54 | macro(op_eq_null, 3) \ |
55 | macro(op_neq, 4) \ |
56 | macro(op_neq_null, 3) \ |
57 | macro(op_stricteq, 4) \ |
58 | macro(op_nstricteq, 4) \ |
59 | macro(op_less, 4) \ |
60 | macro(op_lesseq, 4) \ |
61 | \ |
62 | macro(op_pre_inc, 2) \ |
63 | macro(op_pre_dec, 2) \ |
64 | macro(op_post_inc, 3) \ |
65 | macro(op_post_dec, 3) \ |
66 | macro(op_to_jsnumber, 3) \ |
67 | macro(op_negate, 3) \ |
68 | macro(op_add, 5) \ |
69 | macro(op_mul, 5) \ |
70 | macro(op_div, 5) \ |
71 | macro(op_mod, 4) \ |
72 | macro(op_sub, 5) \ |
73 | \ |
74 | macro(op_lshift, 4) \ |
75 | macro(op_rshift, 4) \ |
76 | macro(op_urshift, 4) \ |
77 | macro(op_bitand, 5) \ |
78 | macro(op_bitxor, 5) \ |
79 | macro(op_bitor, 5) \ |
80 | macro(op_bitnot, 3) \ |
81 | \ |
82 | macro(op_instanceof, 5) \ |
83 | macro(op_typeof, 3) \ |
84 | macro(op_is_undefined, 3) \ |
85 | macro(op_is_boolean, 3) \ |
86 | macro(op_is_number, 3) \ |
87 | macro(op_is_string, 3) \ |
88 | macro(op_is_object, 3) \ |
89 | macro(op_is_function, 3) \ |
90 | macro(op_in, 4) \ |
91 | \ |
92 | macro(op_resolve, 3) \ |
93 | macro(op_resolve_skip, 4) \ |
94 | macro(op_resolve_global, 6) \ |
95 | macro(op_get_scoped_var, 4) \ |
96 | macro(op_put_scoped_var, 4) \ |
97 | macro(op_get_global_var, 4) \ |
98 | macro(op_put_global_var, 4) \ |
99 | macro(op_resolve_base, 3) \ |
100 | macro(op_resolve_with_base, 4) \ |
101 | macro(op_get_by_id, 8) \ |
102 | macro(op_get_by_id_self, 8) \ |
103 | macro(op_get_by_id_self_list, 8) \ |
104 | macro(op_get_by_id_proto, 8) \ |
105 | macro(op_get_by_id_proto_list, 8) \ |
106 | macro(op_get_by_id_chain, 8) \ |
107 | macro(op_get_by_id_generic, 8) \ |
108 | macro(op_get_array_length, 8) \ |
109 | macro(op_get_string_length, 8) \ |
110 | macro(op_put_by_id, 8) \ |
111 | macro(op_put_by_id_transition, 8) \ |
112 | macro(op_put_by_id_replace, 8) \ |
113 | macro(op_put_by_id_generic, 8) \ |
114 | macro(op_del_by_id, 4) \ |
115 | macro(op_get_by_val, 4) \ |
116 | macro(op_get_by_pname, 7) \ |
117 | macro(op_put_by_val, 4) \ |
118 | macro(op_del_by_val, 4) \ |
119 | macro(op_put_by_index, 4) \ |
120 | macro(op_put_getter, 4) \ |
121 | macro(op_put_setter, 4) \ |
122 | \ |
123 | macro(op_jmp, 2) \ |
124 | macro(op_jtrue, 3) \ |
125 | macro(op_jfalse, 3) \ |
126 | macro(op_jeq_null, 3) \ |
127 | macro(op_jneq_null, 3) \ |
128 | macro(op_jneq_ptr, 4) \ |
129 | macro(op_jnless, 4) \ |
130 | macro(op_jnlesseq, 4) \ |
131 | macro(op_jless, 4) \ |
132 | macro(op_jmp_scopes, 3) \ |
133 | macro(op_loop, 2) \ |
134 | macro(op_loop_if_true, 3) \ |
135 | macro(op_loop_if_false, 3) \ |
136 | macro(op_loop_if_less, 4) \ |
137 | macro(op_loop_if_lesseq, 4) \ |
138 | macro(op_switch_imm, 4) \ |
139 | macro(op_switch_char, 4) \ |
140 | macro(op_switch_string, 4) \ |
141 | \ |
142 | macro(op_new_func, 3) \ |
143 | macro(op_new_func_exp, 3) \ |
144 | macro(op_call, 5) \ |
145 | macro(op_call_eval, 5) \ |
146 | macro(op_call_varargs, 5) \ |
147 | macro(op_load_varargs, 3) \ |
148 | macro(op_tear_off_activation, 2) \ |
149 | macro(op_tear_off_arguments, 1) \ |
150 | macro(op_ret, 2) \ |
151 | macro(op_method_check, 1) \ |
152 | \ |
153 | macro(op_construct, 7) \ |
154 | macro(op_construct_verify, 3) \ |
155 | macro(op_strcat, 4) \ |
156 | macro(op_to_primitive, 3) \ |
157 | \ |
158 | macro(op_get_pnames, 6) \ |
159 | macro(op_next_pname, 7) \ |
160 | \ |
161 | macro(op_push_scope, 2) \ |
162 | macro(op_pop_scope, 1) \ |
163 | macro(op_push_new_scope, 4) \ |
164 | \ |
165 | macro(op_catch, 2) \ |
166 | macro(op_throw, 2) \ |
167 | macro(op_new_error, 4) \ |
168 | \ |
169 | macro(op_jsr, 3) \ |
170 | macro(op_sret, 2) \ |
171 | \ |
172 | macro(op_debug, 4) \ |
173 | macro(op_profile_will_call, 2) \ |
174 | macro(op_profile_did_call, 2) \ |
175 | \ |
176 | macro(op_end, 2) // end must be the last opcode in the list |
177 | |
178 | #define OPCODE_ID_ENUM(opcode, length) opcode, |
179 | typedef enum { FOR_EACH_OPCODE_ID(OPCODE_ID_ENUM) } OpcodeID; |
180 | #undef OPCODE_ID_ENUM |
181 | |
182 | const int numOpcodeIDs = op_end + 1; |
183 | |
184 | #define OPCODE_ID_LENGTHS(id, length) const int id##_length = length; |
185 | FOR_EACH_OPCODE_ID(OPCODE_ID_LENGTHS); |
186 | #undef OPCODE_ID_LENGTHS |
187 | |
188 | #define OPCODE_LENGTH(opcode) opcode##_length |
189 | |
190 | #define OPCODE_ID_LENGTH_MAP(opcode, length) length, |
191 | const int opcodeLengths[numOpcodeIDs] = { FOR_EACH_OPCODE_ID(OPCODE_ID_LENGTH_MAP) }; |
192 | #undef OPCODE_ID_LENGTH_MAP |
193 | |
194 | #define VERIFY_OPCODE_ID(id, size) COMPILE_ASSERT(id <= op_end, ASSERT_THAT_JS_OPCODE_IDS_ARE_VALID); |
195 | FOR_EACH_OPCODE_ID(VERIFY_OPCODE_ID); |
196 | #undef VERIFY_OPCODE_ID |
197 | |
198 | #if HAVE(COMPUTED_GOTO) |
199 | #if COMPILER(RVCT) || COMPILER(INTEL) |
200 | typedef void* Opcode; |
201 | #else |
202 | typedef const void* Opcode; |
203 | #endif |
204 | #else |
205 | typedef OpcodeID Opcode; |
206 | #endif |
207 | |
208 | #if ENABLE(OPCODE_SAMPLING) || ENABLE(CODEBLOCK_SAMPLING) || ENABLE(OPCODE_STATS) |
209 | |
210 | #define PADDING_STRING " " |
211 | #define PADDING_STRING_LENGTH static_cast<unsigned>(strlen(PADDING_STRING)) |
212 | |
213 | extern const char* const opcodeNames[]; |
214 | |
215 | inline const char* padOpcodeName(OpcodeID op, unsigned width) |
216 | { |
217 | unsigned pad = width - strlen(opcodeNames[op]); |
218 | pad = std::min(pad, PADDING_STRING_LENGTH); |
219 | return PADDING_STRING + PADDING_STRING_LENGTH - pad; |
220 | } |
221 | |
222 | #undef PADDING_STRING_LENGTH |
223 | #undef PADDING_STRING |
224 | |
225 | #endif |
226 | |
227 | #if ENABLE(OPCODE_STATS) |
228 | |
229 | struct OpcodeStats { |
230 | OpcodeStats(); |
231 | ~OpcodeStats(); |
232 | static long long opcodeCounts[numOpcodeIDs]; |
233 | static long long opcodePairCounts[numOpcodeIDs][numOpcodeIDs]; |
234 | static int lastOpcode; |
235 | |
236 | static void recordInstruction(int opcode); |
237 | static void resetLastInstruction(); |
238 | }; |
239 | |
240 | #endif |
241 | |
242 | } // namespace JSC |
243 | |
244 | #endif // Opcode_h |
245 | |