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bmiintrin.h
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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 
46 static __inline__ unsigned short __DEFAULT_FN_ATTRS
47 __tzcnt_u16(unsigned short __X)
48 {
49  return __X ? __builtin_ctzs(__X) : 16;
50 }
51 
52 static __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 */
59 static __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 */
66 static __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 
72 static __inline__ unsigned int __DEFAULT_FN_ATTRS
73 __blsi_u32(unsigned int __X)
74 {
75  return __X & -__X;
76 }
77 
78 static __inline__ unsigned int __DEFAULT_FN_ATTRS
79 __blsmsk_u32(unsigned int __X)
80 {
81  return __X ^ (__X - 1);
82 }
83 
84 static __inline__ unsigned int __DEFAULT_FN_ATTRS
85 __blsr_u32(unsigned int __X)
86 {
87  return __X & (__X - 1);
88 }
89 
90 static __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 
105 static __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 */
112 static __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 */
119 static __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 
125 static __inline__ unsigned long long __DEFAULT_FN_ATTRS
126 __blsi_u64(unsigned long long __X)
127 {
128  return __X & -__X;
129 }
130 
131 static __inline__ unsigned long long __DEFAULT_FN_ATTRS
132 __blsmsk_u64(unsigned long long __X)
133 {
134  return __X ^ (__X - 1);
135 }
136 
137 static __inline__ unsigned long long __DEFAULT_FN_ATTRS
138 __blsr_u64(unsigned long long __X)
139 {
140  return __X & (__X - 1);
141 }
142 
143 static __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 */
static __inline__ unsigned int __DEFAULT_FN_ATTRS __bextr_u32(unsigned int __X, unsigned int __Y)
Definition: bmiintrin.h:60
static __inline__ unsigned int __DEFAULT_FN_ATTRS __blsmsk_u32(unsigned int __X)
Definition: bmiintrin.h:79
static __inline__ unsigned int __DEFAULT_FN_ATTRS __blsr_u32(unsigned int __X)
Definition: bmiintrin.h:85
static __inline__ unsigned int __DEFAULT_FN_ATTRS _bextr_u32(unsigned int __X, unsigned int __Y, unsigned int __Z)
Definition: bmiintrin.h:67
static __inline__ unsigned short __DEFAULT_FN_ATTRS __tzcnt_u16(unsigned short __X)
Definition: bmiintrin.h:47
#define __DEFAULT_FN_ATTRS
Definition: bmiintrin.h:44
static __inline__ unsigned int __DEFAULT_FN_ATTRS __blsi_u32(unsigned int __X)
Definition: bmiintrin.h:73
static __inline__ unsigned int __DEFAULT_FN_ATTRS __tzcnt_u32(unsigned int __X)
Definition: bmiintrin.h:91
static __inline__ unsigned int __DEFAULT_FN_ATTRS __andn_u32(unsigned int __X, unsigned int __Y)
Definition: bmiintrin.h:53