bmiintrin.h revision 288943 
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
43/* Define the default attributes for the functions in this file. */
44#define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__))
45
46static __inline__ unsigned short __DEFAULT_FN_ATTRS
47__tzcnt_u16(unsigned short __X)
48{
49  return __X ? __builtin_ctzs(__X) : 16;
50}
51
52static __inline__ unsigned int __DEFAULT_FN_ATTRS
53__andn_u32(unsigned int __X, unsigned int __Y)
54{
55  return ~__X & __Y;
56}
57
58/* AMD-specified, double-leading-underscore version of BEXTR */
59static __inline__ unsigned int __DEFAULT_FN_ATTRS
60__bextr_u32(unsigned int __X, unsigned int __Y)
61{
62  return __builtin_ia32_bextr_u32(__X, __Y);
63}
64
65/* Intel-specified, single-leading-underscore version of BEXTR */
66static __inline__ unsigned int __DEFAULT_FN_ATTRS
67_bextr_u32(unsigned int __X, unsigned int __Y, unsigned int __Z)
68{
69  return __builtin_ia32_bextr_u32 (__X, ((__Y & 0xff) | ((__Z & 0xff) << 8)));
70}
71
72static __inline__ unsigned int __DEFAULT_FN_ATTRS
73__blsi_u32(unsigned int __X)
74{
75  return __X & -__X;
76}
77
78static __inline__ unsigned int __DEFAULT_FN_ATTRS
79__blsmsk_u32(unsigned int __X)
80{
81  return __X ^ (__X - 1);
82}
83
84static __inline__ unsigned int __DEFAULT_FN_ATTRS
85__blsr_u32(unsigned int __X)
86{
87  return __X & (__X - 1);
88}
89
90static __inline__ unsigned int __DEFAULT_FN_ATTRS
91__tzcnt_u32(unsigned int __X)
92{
93  return __X ? __builtin_ctz(__X) : 32;
94}
95
96#ifdef __x86_64__
97
98#define _andn_u64(a, b)   (__andn_u64((a), (b)))
99/* _bextr_u64 != __bextr_u64 */
100#define _blsi_u64(a)      (__blsi_u64((a)))
101#define _blsmsk_u64(a)    (__blsmsk_u64((a)))
102#define _blsr_u64(a)      (__blsr_u64((a)))
103#define _tzcnt_u64(a)     (__tzcnt_u64((a)))
104
105static __inline__ unsigned long long __DEFAULT_FN_ATTRS
106__andn_u64 (unsigned long long __X, unsigned long long __Y)
107{
108  return ~__X & __Y;
109}
110
111/* AMD-specified, double-leading-underscore version of BEXTR */
112static __inline__ unsigned long long __DEFAULT_FN_ATTRS
113__bextr_u64(unsigned long long __X, unsigned long long __Y)
114{
115  return __builtin_ia32_bextr_u64(__X, __Y);
116}
117
118/* Intel-specified, single-leading-underscore version of BEXTR */
119static __inline__ unsigned long long __DEFAULT_FN_ATTRS
120_bextr_u64(unsigned long long __X, unsigned int __Y, unsigned int __Z)
121{
122  return __builtin_ia32_bextr_u64 (__X, ((__Y & 0xff) | ((__Z & 0xff) << 8)));
123}
124
125static __inline__ unsigned long long __DEFAULT_FN_ATTRS
126__blsi_u64(unsigned long long __X)
127{
128  return __X & -__X;
129}
130
131static __inline__ unsigned long long __DEFAULT_FN_ATTRS
132__blsmsk_u64(unsigned long long __X)
133{
134  return __X ^ (__X - 1);
135}
136
137static __inline__ unsigned long long __DEFAULT_FN_ATTRS
138__blsr_u64(unsigned long long __X)
139{
140  return __X & (__X - 1);
141}
142
143static __inline__ unsigned long long __DEFAULT_FN_ATTRS
144__tzcnt_u64(unsigned long long __X)
145{
146  return __X ? __builtin_ctzll(__X) : 64;
147}
148
149#endif /* __x86_64__ */
150
151#undef __DEFAULT_FN_ATTRS
152
153#endif /* __BMIINTRIN_H */
154