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comparison gcc/wide-int-bitmask.h @ 132:d34655255c78

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update gcc-8.2
author mir3636
date Thu, 25 Oct 2018 10:21:07 +0900
parents 84e7813d76e9
children 1830386684a0
comparison
equal deleted inserted replaced
130:e108057fa461 132:d34655255c78
1 /* Operation with 128 bit bitmask.
2 Copyright (C) 2013-2018 Free Software Foundation, Inc.
3
4 This file is part of GCC.
5
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 3, or (at your option) any later
9 version.
10
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
19
20 #ifndef GCC_WIDE_INT_BITMASK_H
21 #define GCC_WIDE_INT_BITMASK_H
22
23 struct wide_int_bitmask
24 {
25 inline wide_int_bitmask ();
26 inline wide_int_bitmask (uint64_t l);
27 inline wide_int_bitmask (uint64_t l, uint64_t h);
28 inline wide_int_bitmask &operator &= (wide_int_bitmask);
29 inline wide_int_bitmask &operator |= (wide_int_bitmask);
30 inline wide_int_bitmask operator ~ () const;
31 inline wide_int_bitmask operator & (wide_int_bitmask) const;
32 inline wide_int_bitmask operator | (wide_int_bitmask) const;
33 inline wide_int_bitmask operator >> (int);
34 inline wide_int_bitmask operator << (int);
35 inline bool operator == (wide_int_bitmask) const;
36 inline bool operator != (wide_int_bitmask) const;
37 uint64_t low, high;
38 };
39
40 inline
41 wide_int_bitmask::wide_int_bitmask ()
42 : low (0), high (0)
43 {
44 }
45
46 inline
47 wide_int_bitmask::wide_int_bitmask (uint64_t l)
48 : low (l), high (0)
49 {
50 }
51
52 inline
53 wide_int_bitmask::wide_int_bitmask (uint64_t l, uint64_t h)
54 : low (l), high (h)
55 {
56 }
57
58 inline wide_int_bitmask &
59 wide_int_bitmask::operator &= (wide_int_bitmask b)
60 {
61 low &= b.low;
62 high &= b.high;
63 return *this;
64 }
65
66 inline wide_int_bitmask &
67 wide_int_bitmask::operator |= (wide_int_bitmask b)
68 {
69 low |= b.low;
70 high |= b.high;
71 return *this;
72 }
73
74 inline wide_int_bitmask
75 wide_int_bitmask::operator ~ () const
76 {
77 wide_int_bitmask ret (~low, ~high);
78 return ret;
79 }
80
81 inline wide_int_bitmask
82 wide_int_bitmask::operator | (wide_int_bitmask b) const
83 {
84 wide_int_bitmask ret (low | b.low, high | b.high);
85 return ret;
86 }
87
88 inline wide_int_bitmask
89 wide_int_bitmask::operator & (wide_int_bitmask b) const
90 {
91 wide_int_bitmask ret (low & b.low, high & b.high);
92 return ret;
93 }
94
95 inline wide_int_bitmask
96 wide_int_bitmask::operator << (int amount)
97 {
98 wide_int_bitmask ret;
99 if (amount >= 64)
100 {
101 ret.low = 0;
102 ret.high = low << (amount - 64);
103 }
104 else if (amount == 0)
105 ret = *this;
106 else
107 {
108 ret.low = low << amount;
109 ret.high = (low >> (64 - amount)) | (high << amount);
110 }
111 return ret;
112 }
113
114 inline wide_int_bitmask
115 wide_int_bitmask::operator >> (int amount)
116 {
117 wide_int_bitmask ret;
118 if (amount >= 64)
119 {
120 ret.low = high >> (amount - 64);
121 ret.high = 0;
122 }
123 else if (amount == 0)
124 ret = *this;
125 else
126 {
127 ret.low = (high << (64 - amount)) | (low >> amount);
128 ret.high = high >> amount;
129 }
130 return ret;
131 }
132
133 inline bool
134 wide_int_bitmask::operator == (wide_int_bitmask b) const
135 {
136 return low == b.low && high == b.high;
137 }
138
139 inline bool
140 wide_int_bitmask::operator != (wide_int_bitmask b) const
141 {
142 return low != b.low || high != b.high;
143 }
144
145 #endif /* ! GCC_WIDE_INT_BITMASK_H */