| /*===---- popcntintrin.h - POPCNT intrinsics -------------------------------=== |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| * |
| *===-----------------------------------------------------------------------=== |
| */ |
| |
| #ifndef __POPCNTINTRIN_H |
| #define __POPCNTINTRIN_H |
| |
| /* Define the default attributes for the functions in this file. */ |
| #define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("popcnt"))) |
| |
| /// Counts the number of bits in the source operand having a value of 1. |
| /// |
| /// \headerfile <x86intrin.h> |
| /// |
| /// This intrinsic corresponds to the <c> POPCNT </c> instruction. |
| /// |
| /// \param __A |
| /// An unsigned 32-bit integer operand. |
| /// \returns A 32-bit integer containing the number of bits with value 1 in the |
| /// source operand. |
| static __inline__ int __DEFAULT_FN_ATTRS |
| _mm_popcnt_u32(unsigned int __A) |
| { |
| return __builtin_popcount(__A); |
| } |
| |
| /// Counts the number of bits in the source operand having a value of 1. |
| /// |
| /// \headerfile <x86intrin.h> |
| /// |
| /// This intrinsic corresponds to the <c> POPCNT </c> instruction. |
| /// |
| /// \param __A |
| /// A signed 32-bit integer operand. |
| /// \returns A 32-bit integer containing the number of bits with value 1 in the |
| /// source operand. |
| static __inline__ int __DEFAULT_FN_ATTRS |
| _popcnt32(int __A) |
| { |
| return __builtin_popcount(__A); |
| } |
| |
| #ifdef __x86_64__ |
| /// Counts the number of bits in the source operand having a value of 1. |
| /// |
| /// \headerfile <x86intrin.h> |
| /// |
| /// This intrinsic corresponds to the <c> POPCNT </c> instruction. |
| /// |
| /// \param __A |
| /// An unsigned 64-bit integer operand. |
| /// \returns A 64-bit integer containing the number of bits with value 1 in the |
| /// source operand. |
| static __inline__ long long __DEFAULT_FN_ATTRS |
| _mm_popcnt_u64(unsigned long long __A) |
| { |
| return __builtin_popcountll(__A); |
| } |
| |
| /// Counts the number of bits in the source operand having a value of 1. |
| /// |
| /// \headerfile <x86intrin.h> |
| /// |
| /// This intrinsic corresponds to the <c> POPCNT </c> instruction. |
| /// |
| /// \param __A |
| /// A signed 64-bit integer operand. |
| /// \returns A 64-bit integer containing the number of bits with value 1 in the |
| /// source operand. |
| static __inline__ long long __DEFAULT_FN_ATTRS |
| _popcnt64(long long __A) |
| { |
| return __builtin_popcountll(__A); |
| } |
| #endif /* __x86_64__ */ |
| |
| #undef __DEFAULT_FN_ATTRS |
| |
| #endif /* __POPCNTINTRIN_H */ |
