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