1// Copyright 2011 the V8 project authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5
6#ifndef V8_REGEXP_BYTECODES_IRREGEXP_H_
7#define V8_REGEXP_BYTECODES_IRREGEXP_H_
8
9namespace v8 {
10namespace internal {
11
12
13const int BYTECODE_MASK = 0xff;
14// The first argument is packed in with the byte code in one word, but so it
15// has 24 bits, but it can be positive and negative so only use 23 bits for
16// positive values.
17const unsigned int MAX_FIRST_ARG = 0x7fffffu;
18const int BYTECODE_SHIFT = 8;
19
20#define BYTECODE_ITERATOR(V) \
21 V(BREAK, 0, 4) /* bc8 */ \
22 V(PUSH_CP, 1, 4) /* bc8 pad24 */ \
23 V(PUSH_BT, 2, 8) /* bc8 pad24 offset32 */ \
24 V(PUSH_REGISTER, 3, 4) /* bc8 reg_idx24 */ \
25 V(SET_REGISTER_TO_CP, 4, 8) /* bc8 reg_idx24 offset32 */ \
26 V(SET_CP_TO_REGISTER, 5, 4) /* bc8 reg_idx24 */ \
27 V(SET_REGISTER_TO_SP, 6, 4) /* bc8 reg_idx24 */ \
28 V(SET_SP_TO_REGISTER, 7, 4) /* bc8 reg_idx24 */ \
29 V(SET_REGISTER, 8, 8) /* bc8 reg_idx24 value32 */ \
30 V(ADVANCE_REGISTER, 9, 8) /* bc8 reg_idx24 value32 */ \
31 V(POP_CP, 10, 4) /* bc8 pad24 */ \
32 V(POP_BT, 11, 4) /* bc8 pad24 */ \
33 V(POP_REGISTER, 12, 4) /* bc8 reg_idx24 */ \
34 V(FAIL, 13, 4) /* bc8 pad24 */ \
35 V(SUCCEED, 14, 4) /* bc8 pad24 */ \
36 V(ADVANCE_CP, 15, 4) /* bc8 offset24 */ \
37 V(GOTO, 16, 8) /* bc8 pad24 addr32 */ \
38 V(LOAD_CURRENT_CHAR, 17, 8) /* bc8 offset24 addr32 */ \
39 V(LOAD_CURRENT_CHAR_UNCHECKED, 18, 4) /* bc8 offset24 */ \
40 V(LOAD_2_CURRENT_CHARS, 19, 8) /* bc8 offset24 addr32 */ \
41 V(LOAD_2_CURRENT_CHARS_UNCHECKED, 20, 4) /* bc8 offset24 */ \
42 V(LOAD_4_CURRENT_CHARS, 21, 8) /* bc8 offset24 addr32 */ \
43 V(LOAD_4_CURRENT_CHARS_UNCHECKED, 22, 4) /* bc8 offset24 */ \
44 V(CHECK_4_CHARS, 23, 12) /* bc8 pad24 uint32 addr32 */ \
45 V(CHECK_CHAR, 24, 8) /* bc8 pad8 uint16 addr32 */ \
46 V(CHECK_NOT_4_CHARS, 25, 12) /* bc8 pad24 uint32 addr32 */ \
47 V(CHECK_NOT_CHAR, 26, 8) /* bc8 pad8 uint16 addr32 */ \
48 V(AND_CHECK_4_CHARS, 27, 16) /* bc8 pad24 uint32 uint32 addr32 */ \
49 V(AND_CHECK_CHAR, 28, 12) /* bc8 pad8 uint16 uint32 addr32 */ \
50 V(AND_CHECK_NOT_4_CHARS, 29, 16) /* bc8 pad24 uint32 uint32 addr32 */ \
51 V(AND_CHECK_NOT_CHAR, 30, 12) /* bc8 pad8 uint16 uint32 addr32 */ \
52 V(MINUS_AND_CHECK_NOT_CHAR, 31, 12) /* bc8 pad8 uc16 uc16 uc16 addr32 */ \
53 V(CHECK_CHAR_IN_RANGE, 32, 12) /* bc8 pad24 uc16 uc16 addr32 */ \
54 V(CHECK_CHAR_NOT_IN_RANGE, 33, 12) /* bc8 pad24 uc16 uc16 addr32 */ \
55 V(CHECK_BIT_IN_TABLE, 34, 24) /* bc8 pad24 addr32 bits128 */ \
56 V(CHECK_LT, 35, 8) /* bc8 pad8 uc16 addr32 */ \
57 V(CHECK_GT, 36, 8) /* bc8 pad8 uc16 addr32 */ \
58 V(CHECK_NOT_BACK_REF, 37, 8) /* bc8 reg_idx24 addr32 */ \
59 V(CHECK_NOT_BACK_REF_NO_CASE, 38, 8) /* bc8 reg_idx24 addr32 */ \
60 V(CHECK_NOT_BACK_REF_NO_CASE_UNICODE, 39, 8) \
61 V(CHECK_NOT_BACK_REF_BACKWARD, 40, 8) /* bc8 reg_idx24 addr32 */ \
62 V(CHECK_NOT_BACK_REF_NO_CASE_BACKWARD, 41, 8) /* bc8 reg_idx24 addr32 */ \
63 V(CHECK_NOT_BACK_REF_NO_CASE_UNICODE_BACKWARD, 42, 8) \
64 V(CHECK_NOT_REGS_EQUAL, 43, 12) /* bc8 regidx24 reg_idx32 addr32 */ \
65 V(CHECK_REGISTER_LT, 44, 12) /* bc8 reg_idx24 value32 addr32 */ \
66 V(CHECK_REGISTER_GE, 45, 12) /* bc8 reg_idx24 value32 addr32 */ \
67 V(CHECK_REGISTER_EQ_POS, 46, 8) /* bc8 reg_idx24 addr32 */ \
68 V(CHECK_AT_START, 47, 8) /* bc8 pad24 addr32 */ \
69 V(CHECK_NOT_AT_START, 48, 8) /* bc8 offset24 addr32 */ \
70 V(CHECK_GREEDY, 49, 8) /* bc8 pad24 addr32 */ \
71 V(ADVANCE_CP_AND_GOTO, 50, 8) /* bc8 offset24 addr32 */ \
72 V(SET_CURRENT_POSITION_FROM_END, 51, 4) /* bc8 idx24 */
73
74#define DECLARE_BYTECODES(name, code, length) \
75 static const int BC_##name = code;
76BYTECODE_ITERATOR(DECLARE_BYTECODES)
77#undef DECLARE_BYTECODES
78
79#define DECLARE_BYTECODE_LENGTH(name, code, length) \
80 static const int BC_##name##_LENGTH = length;
81BYTECODE_ITERATOR(DECLARE_BYTECODE_LENGTH)
82#undef DECLARE_BYTECODE_LENGTH
83
84} // namespace internal
85} // namespace v8
86
87#endif // V8_REGEXP_BYTECODES_IRREGEXP_H_
88