1*38fd1498Szrj /* Operation with 128 bit bitmask.
2*38fd1498Szrj Copyright (C) 2013-2018 Free Software Foundation, Inc.
3*38fd1498Szrj
4*38fd1498Szrj This file is part of GCC.
5*38fd1498Szrj
6*38fd1498Szrj GCC is free software; you can redistribute it and/or modify it under
7*38fd1498Szrj the terms of the GNU General Public License as published by the Free
8*38fd1498Szrj Software Foundation; either version 3, or (at your option) any later
9*38fd1498Szrj version.
10*38fd1498Szrj
11*38fd1498Szrj GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12*38fd1498Szrj WARRANTY; without even the implied warranty of MERCHANTABILITY or
13*38fd1498Szrj FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14*38fd1498Szrj for more details.
15*38fd1498Szrj
16*38fd1498Szrj You should have received a copy of the GNU General Public License
17*38fd1498Szrj along with GCC; see the file COPYING3. If not see
18*38fd1498Szrj <http://www.gnu.org/licenses/>. */
19*38fd1498Szrj
20*38fd1498Szrj #ifndef GCC_WIDE_INT_BITMASK_H
21*38fd1498Szrj #define GCC_WIDE_INT_BITMASK_H
22*38fd1498Szrj
23*38fd1498Szrj struct wide_int_bitmask
24*38fd1498Szrj {
25*38fd1498Szrj inline wide_int_bitmask ();
26*38fd1498Szrj inline wide_int_bitmask (uint64_t l);
27*38fd1498Szrj inline wide_int_bitmask (uint64_t l, uint64_t h);
28*38fd1498Szrj inline wide_int_bitmask &operator &= (wide_int_bitmask);
29*38fd1498Szrj inline wide_int_bitmask &operator |= (wide_int_bitmask);
30*38fd1498Szrj inline wide_int_bitmask operator ~ () const;
31*38fd1498Szrj inline wide_int_bitmask operator & (wide_int_bitmask) const;
32*38fd1498Szrj inline wide_int_bitmask operator | (wide_int_bitmask) const;
33*38fd1498Szrj inline wide_int_bitmask operator >> (int);
34*38fd1498Szrj inline wide_int_bitmask operator << (int);
35*38fd1498Szrj inline bool operator == (wide_int_bitmask) const;
36*38fd1498Szrj inline bool operator != (wide_int_bitmask) const;
37*38fd1498Szrj uint64_t low, high;
38*38fd1498Szrj };
39*38fd1498Szrj
40*38fd1498Szrj inline
wide_int_bitmask()41*38fd1498Szrj wide_int_bitmask::wide_int_bitmask ()
42*38fd1498Szrj : low (0), high (0)
43*38fd1498Szrj {
44*38fd1498Szrj }
45*38fd1498Szrj
46*38fd1498Szrj inline
wide_int_bitmask(uint64_t l)47*38fd1498Szrj wide_int_bitmask::wide_int_bitmask (uint64_t l)
48*38fd1498Szrj : low (l), high (0)
49*38fd1498Szrj {
50*38fd1498Szrj }
51*38fd1498Szrj
52*38fd1498Szrj inline
wide_int_bitmask(uint64_t l,uint64_t h)53*38fd1498Szrj wide_int_bitmask::wide_int_bitmask (uint64_t l, uint64_t h)
54*38fd1498Szrj : low (l), high (h)
55*38fd1498Szrj {
56*38fd1498Szrj }
57*38fd1498Szrj
58*38fd1498Szrj inline wide_int_bitmask &
59*38fd1498Szrj wide_int_bitmask::operator &= (wide_int_bitmask b)
60*38fd1498Szrj {
61*38fd1498Szrj low &= b.low;
62*38fd1498Szrj high &= b.high;
63*38fd1498Szrj return *this;
64*38fd1498Szrj }
65*38fd1498Szrj
66*38fd1498Szrj inline wide_int_bitmask &
67*38fd1498Szrj wide_int_bitmask::operator |= (wide_int_bitmask b)
68*38fd1498Szrj {
69*38fd1498Szrj low |= b.low;
70*38fd1498Szrj high |= b.high;
71*38fd1498Szrj return *this;
72*38fd1498Szrj }
73*38fd1498Szrj
74*38fd1498Szrj inline wide_int_bitmask
75*38fd1498Szrj wide_int_bitmask::operator ~ () const
76*38fd1498Szrj {
77*38fd1498Szrj wide_int_bitmask ret (~low, ~high);
78*38fd1498Szrj return ret;
79*38fd1498Szrj }
80*38fd1498Szrj
81*38fd1498Szrj inline wide_int_bitmask
82*38fd1498Szrj wide_int_bitmask::operator | (wide_int_bitmask b) const
83*38fd1498Szrj {
84*38fd1498Szrj wide_int_bitmask ret (low | b.low, high | b.high);
85*38fd1498Szrj return ret;
86*38fd1498Szrj }
87*38fd1498Szrj
88*38fd1498Szrj inline wide_int_bitmask
89*38fd1498Szrj wide_int_bitmask::operator & (wide_int_bitmask b) const
90*38fd1498Szrj {
91*38fd1498Szrj wide_int_bitmask ret (low & b.low, high & b.high);
92*38fd1498Szrj return ret;
93*38fd1498Szrj }
94*38fd1498Szrj
95*38fd1498Szrj inline wide_int_bitmask
96*38fd1498Szrj wide_int_bitmask::operator << (int amount)
97*38fd1498Szrj {
98*38fd1498Szrj wide_int_bitmask ret;
99*38fd1498Szrj if (amount >= 64)
100*38fd1498Szrj {
101*38fd1498Szrj ret.low = 0;
102*38fd1498Szrj ret.high = low << (amount - 64);
103*38fd1498Szrj }
104*38fd1498Szrj else if (amount == 0)
105*38fd1498Szrj ret = *this;
106*38fd1498Szrj else
107*38fd1498Szrj {
108*38fd1498Szrj ret.low = low << amount;
109*38fd1498Szrj ret.high = (low >> (64 - amount)) | (high << amount);
110*38fd1498Szrj }
111*38fd1498Szrj return ret;
112*38fd1498Szrj }
113*38fd1498Szrj
114*38fd1498Szrj inline wide_int_bitmask
115*38fd1498Szrj wide_int_bitmask::operator >> (int amount)
116*38fd1498Szrj {
117*38fd1498Szrj wide_int_bitmask ret;
118*38fd1498Szrj if (amount >= 64)
119*38fd1498Szrj {
120*38fd1498Szrj ret.low = high >> (amount - 64);
121*38fd1498Szrj ret.high = 0;
122*38fd1498Szrj }
123*38fd1498Szrj else if (amount == 0)
124*38fd1498Szrj ret = *this;
125*38fd1498Szrj else
126*38fd1498Szrj {
127*38fd1498Szrj ret.low = (high << (64 - amount)) | (low >> amount);
128*38fd1498Szrj ret.high = high >> amount;
129*38fd1498Szrj }
130*38fd1498Szrj return ret;
131*38fd1498Szrj }
132*38fd1498Szrj
133*38fd1498Szrj inline bool
134*38fd1498Szrj wide_int_bitmask::operator == (wide_int_bitmask b) const
135*38fd1498Szrj {
136*38fd1498Szrj return low == b.low && high == b.high;
137*38fd1498Szrj }
138*38fd1498Szrj
139*38fd1498Szrj inline bool
140*38fd1498Szrj wide_int_bitmask::operator != (wide_int_bitmask b) const
141*38fd1498Szrj {
142*38fd1498Szrj return low != b.low || high != b.high;
143*38fd1498Szrj }
144*38fd1498Szrj
145*38fd1498Szrj #endif /* ! GCC_WIDE_INT_BITMASK_H */
146