1*67e74705SXin Li /*===---- popcntintrin.h - POPCNT intrinsics -------------------------------===
2*67e74705SXin Li *
3*67e74705SXin Li * Permission is hereby granted, free of charge, to any person obtaining a copy
4*67e74705SXin Li * of this software and associated documentation files (the "Software"), to deal
5*67e74705SXin Li * in the Software without restriction, including without limitation the rights
6*67e74705SXin Li * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
7*67e74705SXin Li * copies of the Software, and to permit persons to whom the Software is
8*67e74705SXin Li * furnished to do so, subject to the following conditions:
9*67e74705SXin Li *
10*67e74705SXin Li * The above copyright notice and this permission notice shall be included in
11*67e74705SXin Li * all copies or substantial portions of the Software.
12*67e74705SXin Li *
13*67e74705SXin Li * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14*67e74705SXin Li * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15*67e74705SXin Li * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16*67e74705SXin Li * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17*67e74705SXin Li * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
18*67e74705SXin Li * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
19*67e74705SXin Li * THE SOFTWARE.
20*67e74705SXin Li *
21*67e74705SXin Li *===-----------------------------------------------------------------------===
22*67e74705SXin Li */
23*67e74705SXin Li
24*67e74705SXin Li #ifndef _POPCNTINTRIN_H
25*67e74705SXin Li #define _POPCNTINTRIN_H
26*67e74705SXin Li
27*67e74705SXin Li /* Define the default attributes for the functions in this file. */
28*67e74705SXin Li #define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("popcnt")))
29*67e74705SXin Li
30*67e74705SXin Li /// \brief Counts the number of bits in the source operand having a value of 1.
31*67e74705SXin Li ///
32*67e74705SXin Li /// \headerfile <x86intrin.h>
33*67e74705SXin Li ///
34*67e74705SXin Li /// This intrinsic corresponds to the \c POPCNT instruction.
35*67e74705SXin Li ///
36*67e74705SXin Li /// \param __A
37*67e74705SXin Li /// An unsigned 32-bit integer operand.
38*67e74705SXin Li /// \returns A 32-bit integer containing the number of bits with value 1 in the
39*67e74705SXin Li /// source operand.
40*67e74705SXin Li static __inline__ int __DEFAULT_FN_ATTRS
_mm_popcnt_u32(unsigned int __A)41*67e74705SXin Li _mm_popcnt_u32(unsigned int __A)
42*67e74705SXin Li {
43*67e74705SXin Li return __builtin_popcount(__A);
44*67e74705SXin Li }
45*67e74705SXin Li
46*67e74705SXin Li /// \brief Counts the number of bits in the source operand having a value of 1.
47*67e74705SXin Li ///
48*67e74705SXin Li /// \headerfile <x86intrin.h>
49*67e74705SXin Li ///
50*67e74705SXin Li /// This intrinsic corresponds to the \c POPCNT instruction.
51*67e74705SXin Li ///
52*67e74705SXin Li /// \param __A
53*67e74705SXin Li /// A signed 32-bit integer operand.
54*67e74705SXin Li /// \returns A 32-bit integer containing the number of bits with value 1 in the
55*67e74705SXin Li /// source operand.
56*67e74705SXin Li static __inline__ int __DEFAULT_FN_ATTRS
_popcnt32(int __A)57*67e74705SXin Li _popcnt32(int __A)
58*67e74705SXin Li {
59*67e74705SXin Li return __builtin_popcount(__A);
60*67e74705SXin Li }
61*67e74705SXin Li
62*67e74705SXin Li #ifdef __x86_64__
63*67e74705SXin Li /// \brief Counts the number of bits in the source operand having a value of 1.
64*67e74705SXin Li ///
65*67e74705SXin Li /// \headerfile <x86intrin.h>
66*67e74705SXin Li ///
67*67e74705SXin Li /// This intrinsic corresponds to the \c POPCNT instruction.
68*67e74705SXin Li ///
69*67e74705SXin Li /// \param __A
70*67e74705SXin Li /// An unsigned 64-bit integer operand.
71*67e74705SXin Li /// \returns A 64-bit integer containing the number of bits with value 1 in the
72*67e74705SXin Li /// source operand.
73*67e74705SXin Li static __inline__ long long __DEFAULT_FN_ATTRS
_mm_popcnt_u64(unsigned long long __A)74*67e74705SXin Li _mm_popcnt_u64(unsigned long long __A)
75*67e74705SXin Li {
76*67e74705SXin Li return __builtin_popcountll(__A);
77*67e74705SXin Li }
78*67e74705SXin Li
79*67e74705SXin Li /// \brief Counts the number of bits in the source operand having a value of 1.
80*67e74705SXin Li ///
81*67e74705SXin Li /// \headerfile <x86intrin.h>
82*67e74705SXin Li ///
83*67e74705SXin Li /// This intrinsic corresponds to the \c POPCNT instruction.
84*67e74705SXin Li ///
85*67e74705SXin Li /// \param __A
86*67e74705SXin Li /// A signed 64-bit integer operand.
87*67e74705SXin Li /// \returns A 64-bit integer containing the number of bits with value 1 in the
88*67e74705SXin Li /// source operand.
89*67e74705SXin Li static __inline__ long long __DEFAULT_FN_ATTRS
_popcnt64(long long __A)90*67e74705SXin Li _popcnt64(long long __A)
91*67e74705SXin Li {
92*67e74705SXin Li return __builtin_popcountll(__A);
93*67e74705SXin Li }
94*67e74705SXin Li #endif /* __x86_64__ */
95*67e74705SXin Li
96*67e74705SXin Li #undef __DEFAULT_FN_ATTRS
97*67e74705SXin Li
98*67e74705SXin Li #endif /* _POPCNTINTRIN_H */
99