bmiintrin.h revision 234287 
1/*===---- bmiintrin.h - BMI intrinsics -------------------------------------===
2 *
3 * Permission is hereby granted, free of charge, to any person obtaining a copy
4 * of this software and associated documentation files (the "Software"), to deal
5 * in the Software without restriction, including without limitation the rights
6 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
7 * copies of the Software, and to permit persons to whom the Software is
8 * furnished to do so, subject to the following conditions:
9 *
10 * The above copyright notice and this permission notice shall be included in
11 * all copies or substantial portions of the Software.
12 *
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
18 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
19 * THE SOFTWARE.
20 *
21 *===-----------------------------------------------------------------------===
22 */
23
24#if !defined __X86INTRIN_H && !defined __IMMINTRIN_H
25#error "Never use <bmiintrin.h> directly; include <x86intrin.h> instead."
26#endif
27
28#ifndef __BMI__
29# error "BMI instruction set not enabled"
30#endif /* __BMI__ */
31
32#ifndef __BMIINTRIN_H
33#define __BMIINTRIN_H
34
35static __inline__ unsigned short __attribute__((__always_inline__, __nodebug__))
36__tzcnt16(unsigned short __X)
37{
38  return __builtin_ctzs(__X);
39}
40
41static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__))
42__andn_u32(unsigned int __X, unsigned int __Y)
43{
44  return ~__X & __Y;
45}
46
47static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__))
48__bextr_u32(unsigned int __X, unsigned int __Y)
49{
50  return __builtin_ia32_bextr_u32(__X, __Y);
51}
52
53static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__))
54__blsi_u32(unsigned int __X)
55{
56  return __X & -__X;
57}
58
59static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__))
60__blsmsk_u32(unsigned int __X)
61{
62  return __X ^ (__X - 1);
63}
64
65static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__))
66__blsr_u32(unsigned int __X)
67{
68  return __X & (__X - 1);
69}
70
71static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__))
72__tzcnt32(unsigned int __X)
73{
74  return __builtin_ctz(__X);
75}
76
77#ifdef __x86_64__
78static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
79__andn_u64 (unsigned long long __X, unsigned long long __Y)
80{
81  return ~__X & __Y;
82}
83
84static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
85__bextr_u64(unsigned long long __X, unsigned long long __Y)
86{
87  return __builtin_ia32_bextr_u64(__X, __Y);
88}
89
90static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
91__blsi_u64(unsigned long long __X)
92{
93  return __X & -__X;
94}
95
96static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
97__blsmsk_u64(unsigned long long __X)
98{
99  return __X ^ (__X - 1);
100}
101
102static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
103__blsr_u64(unsigned long long __X)
104{
105  return __X & (__X - 1);
106}
107
108static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
109__tzcnt64(unsigned long long __X)
110{
111  return __builtin_ctzll(__X);
112}
113#endif
114
115#endif /* __BMIINTRIN_H */
116