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 static __inline__ unsigned short __attribute__((__always_inline__, __nodebug__))
__tzcnt16(unsigned short __X)36 __tzcnt16(unsigned short __X)
37 {
38 return __builtin_ctzs(__X);
39 }
40
41 static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__))
__andn_u32(unsigned int __X,unsigned int __Y)42 __andn_u32(unsigned int __X, unsigned int __Y)
43 {
44 return ~__X & __Y;
45 }
46
47 static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__))
__bextr_u32(unsigned int __X,unsigned int __Y)48 __bextr_u32(unsigned int __X, unsigned int __Y)
49 {
50 return __builtin_ia32_bextr_u32(__X, __Y);
51 }
52
53 static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__))
__blsi_u32(unsigned int __X)54 __blsi_u32(unsigned int __X)
55 {
56 return __X & -__X;
57 }
58
59 static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__))
__blsmsk_u32(unsigned int __X)60 __blsmsk_u32(unsigned int __X)
61 {
62 return __X ^ (__X - 1);
63 }
64
65 static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__))
__blsr_u32(unsigned int __X)66 __blsr_u32(unsigned int __X)
67 {
68 return __X & (__X - 1);
69 }
70
71 static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__))
__tzcnt32(unsigned int __X)72 __tzcnt32(unsigned int __X)
73 {
74 return __builtin_ctz(__X);
75 }
76
77 #ifdef __x86_64__
78 static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
__andn_u64(unsigned long long __X,unsigned long long __Y)79 __andn_u64 (unsigned long long __X, unsigned long long __Y)
80 {
81 return ~__X & __Y;
82 }
83
84 static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
__bextr_u64(unsigned long long __X,unsigned long long __Y)85 __bextr_u64(unsigned long long __X, unsigned long long __Y)
86 {
87 return __builtin_ia32_bextr_u64(__X, __Y);
88 }
89
90 static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
__blsi_u64(unsigned long long __X)91 __blsi_u64(unsigned long long __X)
92 {
93 return __X & -__X;
94 }
95
96 static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
__blsmsk_u64(unsigned long long __X)97 __blsmsk_u64(unsigned long long __X)
98 {
99 return __X ^ (__X - 1);
100 }
101
102 static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
__blsr_u64(unsigned long long __X)103 __blsr_u64(unsigned long long __X)
104 {
105 return __X & (__X - 1);
106 }
107
108 static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
__tzcnt64(unsigned long long __X)109 __tzcnt64(unsigned long long __X)
110 {
111 return __builtin_ctzll(__X);
112 }
113 #endif
114
115 #endif /* __BMIINTRIN_H */
116