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
35#define _tzcnt_u16(a)     (__tzcnt_u16((a)))
36#define _andn_u32(a, b)   (__andn_u32((a), (b)))
37/* _bextr_u32 != __bextr_u32 */
38#define _blsi_u32(a)      (__blsi_u32((a)))
39#define _blsmsk_u32(a)    (__blsmsk_u32((a)))
40#define _blsr_u32(a)      (__blsr_u32((a)))
41#define _tzcnt_u32(a)     (__tzcnt_u32((a)))
42
43static __inline__ unsigned short __attribute__((__always_inline__, __nodebug__))
44__tzcnt_u16(unsigned short __X)
45{
46  return __builtin_ctzs(__X);
47}
48
49static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__))
50__andn_u32(unsigned int __X, unsigned int __Y)
51{
52  return ~__X & __Y;
53}
54
55/* AMD-specified, double-leading-underscore version of BEXTR */
56static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__))
57__bextr_u32(unsigned int __X, unsigned int __Y)
58{
59  return __builtin_ia32_bextr_u32(__X, __Y);
60}
61
62/* Intel-specified, single-leading-underscore version of BEXTR */
63static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__))
64_bextr_u32(unsigned int __X, unsigned int __Y, unsigned int __Z)
65{
66  return __builtin_ia32_bextr_u32 (__X, ((__Y & 0xff) | ((__Z & 0xff) << 8)));
67}
68
69static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__))
70__blsi_u32(unsigned int __X)
71{
72  return __X & -__X;
73}
74
75static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__))
76__blsmsk_u32(unsigned int __X)
77{
78  return __X ^ (__X - 1);
79}
80
81static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__))
82__blsr_u32(unsigned int __X)
83{
84  return __X & (__X - 1);
85}
86
87static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__))
88__tzcnt_u32(unsigned int __X)
89{
90  return __builtin_ctz(__X);
91}
92
93#ifdef __x86_64__
94
95#define _andn_u64(a, b)   (__andn_u64((a), (b)))
96/* _bextr_u64 != __bextr_u64 */
97#define _blsi_u64(a)      (__blsi_u64((a)))
98#define _blsmsk_u64(a)    (__blsmsk_u64((a)))
99#define _blsr_u64(a)      (__blsr_u64((a)))
100#define _tzcnt_u64(a)     (__tzcnt_u64((a)))
101
102static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
103__andn_u64 (unsigned long long __X, unsigned long long __Y)
104{
105  return ~__X & __Y;
106}
107
108/* AMD-specified, double-leading-underscore version of BEXTR */
109static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
110__bextr_u64(unsigned long long __X, unsigned long long __Y)
111{
112  return __builtin_ia32_bextr_u64(__X, __Y);
113}
114
115/* Intel-specified, single-leading-underscore version of BEXTR */
116static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
117_bextr_u64(unsigned long long __X, unsigned int __Y, unsigned int __Z)
118{
119  return __builtin_ia32_bextr_u64 (__X, ((__Y & 0xff) | ((__Z & 0xff) << 8)));
120}
121
122static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
123__blsi_u64(unsigned long long __X)
124{
125  return __X & -__X;
126}
127
128static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
129__blsmsk_u64(unsigned long long __X)
130{
131  return __X ^ (__X - 1);
132}
133
134static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
135__blsr_u64(unsigned long long __X)
136{
137  return __X & (__X - 1);
138}
139
140static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
141__tzcnt_u64(unsigned long long __X)
142{
143  return __builtin_ctzll(__X);
144}
145
146#endif /* __x86_64__ */
147
148#endif /* __BMIINTRIN_H */
149