1 /* Operation with 128 bit bitmask.
2 Copyright (C) 2013-2018 Free Software Foundation, Inc.
4 This file is part of GCC.
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
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
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/>. */
20 #ifndef GCC_WIDE_INT_BITMASK_H
21 #define GCC_WIDE_INT_BITMASK_H
23 struct wide_int_bitmask
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;
41 wide_int_bitmask::wide_int_bitmask ()
47 wide_int_bitmask::wide_int_bitmask (uint64_t l)
53 wide_int_bitmask::wide_int_bitmask (uint64_t l, uint64_t h)
58 inline wide_int_bitmask &
59 wide_int_bitmask::operator &= (wide_int_bitmask b)
66 inline wide_int_bitmask &
67 wide_int_bitmask::operator |= (wide_int_bitmask b)
74 inline wide_int_bitmask
75 wide_int_bitmask::operator ~ () const
77 wide_int_bitmask ret (~low, ~high);
81 inline wide_int_bitmask
82 wide_int_bitmask::operator | (wide_int_bitmask b) const
84 wide_int_bitmask ret (low | b.low, high | b.high);
88 inline wide_int_bitmask
89 wide_int_bitmask::operator & (wide_int_bitmask b) const
91 wide_int_bitmask ret (low & b.low, high & b.high);
95 inline wide_int_bitmask
96 wide_int_bitmask::operator << (int amount)
102 ret.high = low << (amount - 64);
104 else if (amount == 0)
108 ret.low = low << amount;
109 ret.high = (low >> (64 - amount)) | (high << amount);
114 inline wide_int_bitmask
115 wide_int_bitmask::operator >> (int amount)
117 wide_int_bitmask ret;
120 ret.low = high >> (amount - 64);
123 else if (amount == 0)
127 ret.low = (high << (64 - amount)) | (low >> amount);
128 ret.high = high >> amount;
134 wide_int_bitmask::operator == (wide_int_bitmask b) const
136 return low == b.low && high == b.high;
140 wide_int_bitmask::operator != (wide_int_bitmask b) const
142 return low != b.low || high != b.high;
145 #endif /* ! GCC_WIDE_INT_BITMASK_H */