1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
// Copyright 2011 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * 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.
// * Neither the name of Google Inc. 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
// OWNER OR 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 V8_BYTECODES_IRREGEXP_H_
#define V8_BYTECODES_IRREGEXP_H_
namespace js {
namespace irregexp {
const int BYTECODE_MASK = 0xff;
// The first argument is packed in with the byte code in one word, so it
// has 24 bits, but it can be positive and negative so only use 23 bits for
// positive values.
const unsigned int MAX_FIRST_ARG = 0x7fffffu;
const int BYTECODE_SHIFT = 8;
#define BYTECODE_ITERATOR(V) \
V(BREAK, 0, 4) /* bc8 */ \
V(PUSH_CP, 1, 4) /* bc8 pad24 */ \
V(PUSH_BT, 2, 8) /* bc8 pad24 offset32 */ \
V(PUSH_REGISTER, 3, 4) /* bc8 reg_idx24 */ \
V(SET_REGISTER_TO_CP, 4, 8) /* bc8 reg_idx24 offset32 */ \
V(SET_CP_TO_REGISTER, 5, 4) /* bc8 reg_idx24 */ \
V(SET_REGISTER_TO_SP, 6, 4) /* bc8 reg_idx24 */ \
V(SET_SP_TO_REGISTER, 7, 4) /* bc8 reg_idx24 */ \
V(SET_REGISTER, 8, 8) /* bc8 reg_idx24 value32 */ \
V(ADVANCE_REGISTER, 9, 8) /* bc8 reg_idx24 value32 */ \
V(POP_CP, 10, 4) /* bc8 pad24 */ \
V(POP_BT, 11, 4) /* bc8 pad24 */ \
V(POP_REGISTER, 12, 4) /* bc8 reg_idx24 */ \
V(FAIL, 13, 4) /* bc8 pad24 */ \
V(SUCCEED, 14, 4) /* bc8 pad24 */ \
V(ADVANCE_CP, 15, 4) /* bc8 offset24 */ \
V(GOTO, 16, 8) /* bc8 pad24 addr32 */ \
V(LOAD_CURRENT_CHAR, 17, 8) /* bc8 offset24 addr32 */ \
V(LOAD_CURRENT_CHAR_UNCHECKED, 18, 4) /* bc8 offset24 */ \
V(LOAD_2_CURRENT_CHARS, 19, 8) /* bc8 offset24 addr32 */ \
V(LOAD_2_CURRENT_CHARS_UNCHECKED, 20, 4) /* bc8 offset24 */ \
V(LOAD_4_CURRENT_CHARS, 21, 8) /* bc8 offset24 addr32 */ \
V(LOAD_4_CURRENT_CHARS_UNCHECKED, 22, 4) /* bc8 offset24 */ \
V(CHECK_4_CHARS, 23, 12) /* bc8 pad24 uint32 addr32 */ \
V(CHECK_CHAR, 24, 8) /* bc8 pad8 uint16 addr32 */ \
V(CHECK_NOT_4_CHARS, 25, 12) /* bc8 pad24 uint32 addr32 */ \
V(CHECK_NOT_CHAR, 26, 8) /* bc8 pad8 uint16 addr32 */ \
V(AND_CHECK_4_CHARS, 27, 16) /* bc8 pad24 uint32 uint32 addr32 */ \
V(AND_CHECK_CHAR, 28, 12) /* bc8 pad8 uint16 uint32 addr32 */ \
V(AND_CHECK_NOT_4_CHARS, 29, 16) /* bc8 pad24 uint32 uint32 addr32 */ \
V(AND_CHECK_NOT_CHAR, 30, 12) /* bc8 pad8 uint16 uint32 addr32 */ \
V(MINUS_AND_CHECK_NOT_CHAR, 31, 12) /* bc8 pad8 uc16 uc16 uc16 addr32 */ \
V(CHECK_CHAR_IN_RANGE, 32, 12) /* bc8 pad24 uc16 uc16 addr32 */ \
V(CHECK_CHAR_NOT_IN_RANGE, 33, 12) /* bc8 pad24 uc16 uc16 addr32 */ \
V(CHECK_BIT_IN_TABLE, 34, 24) /* bc8 pad24 addr32 bits128 */ \
V(CHECK_LT, 35, 8) /* bc8 pad8 uc16 addr32 */ \
V(CHECK_GT, 36, 8) /* bc8 pad8 uc16 addr32 */ \
V(CHECK_NOT_BACK_REF, 37, 8) /* bc8 reg_idx24 addr32 */ \
V(CHECK_NOT_BACK_REF_NO_CASE, 38, 8) /* bc8 reg_idx24 addr32 */ \
V(CHECK_NOT_REGS_EQUAL, 39, 12) /* bc8 regidx24 reg_idx32 addr32 */ \
V(CHECK_REGISTER_LT, 40, 12) /* bc8 reg_idx24 value32 addr32 */ \
V(CHECK_REGISTER_GE, 41, 12) /* bc8 reg_idx24 value32 addr32 */ \
V(CHECK_REGISTER_EQ_POS, 42, 8) /* bc8 reg_idx24 addr32 */ \
V(CHECK_AT_START, 43, 8) /* bc8 pad24 addr32 */ \
V(CHECK_NOT_AT_START, 44, 8) /* bc8 pad24 addr32 */ \
V(CHECK_GREEDY, 45, 8) /* bc8 pad24 addr32 */ \
V(ADVANCE_CP_AND_GOTO, 46, 8) /* bc8 offset24 addr32 */ \
V(SET_CURRENT_POSITION_FROM_END, 47, 4) /* bc8 idx24 */ \
V(CHECK_NOT_BACK_REF_NO_CASE_UNICODE, 48, 8) /* bc8 reg_idx24 addr32 */
#define DECLARE_BYTECODES(name, code, length) \
static const int BC_##name = code;
BYTECODE_ITERATOR(DECLARE_BYTECODES)
#undef DECLARE_BYTECODES
#define DECLARE_BYTECODE_LENGTH(name, code, length) \
static const int BC_##name##_LENGTH = length;
BYTECODE_ITERATOR(DECLARE_BYTECODE_LENGTH)
#undef DECLARE_BYTECODE_LENGTH
} } // namespace js::irregexp
#endif // V8_BYTECODES_IRREGEXP_H_
|
