OLD | NEW |
(Empty) | |
| 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__)) |
| 36 __tzcnt_u16(unsigned short __X) |
| 37 { |
| 38 return __builtin_ctzs(__X); |
| 39 } |
| 40 |
| 41 static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__)) |
| 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__)) |
| 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__)) |
| 54 __blsi_u32(unsigned int __X) |
| 55 { |
| 56 return __X & -__X; |
| 57 } |
| 58 |
| 59 static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__)) |
| 60 __blsmsk_u32(unsigned int __X) |
| 61 { |
| 62 return __X ^ (__X - 1); |
| 63 } |
| 64 |
| 65 static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__)) |
| 66 __blsr_u32(unsigned int __X) |
| 67 { |
| 68 return __X & (__X - 1); |
| 69 } |
| 70 |
| 71 static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__)) |
| 72 __tzcnt_u32(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
__)) |
| 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
__)) |
| 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
__)) |
| 91 __blsi_u64(unsigned long long __X) |
| 92 { |
| 93 return __X & -__X; |
| 94 } |
| 95 |
| 96 static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug
__)) |
| 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
__)) |
| 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
__)) |
| 109 __tzcnt_u64(unsigned long long __X) |
| 110 { |
| 111 return __builtin_ctzll(__X); |
| 112 } |
| 113 #endif |
| 114 |
| 115 #endif /* __BMIINTRIN_H */ |
OLD | NEW |