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| /*===---- 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")))
/// \brief Counts the number of bits in the source operand having a value of 1.
///
/// \headerfile <x86intrin.h>
///
/// This intrinsic corresponds to the \c POPCNT 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);
}
/// \brief Counts the number of bits in the source operand having a value of 1.
///
/// \headerfile <x86intrin.h>
///
/// This intrinsic corresponds to the \c POPCNT 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__
/// \brief Counts the number of bits in the source operand having a value of 1.
///
/// \headerfile <x86intrin.h>
///
/// This intrinsic corresponds to the \c POPCNT 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);
}
/// \brief Counts the number of bits in the source operand having a value of 1.
///
/// \headerfile <x86intrin.h>
///
/// This intrinsic corresponds to the \c POPCNT 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 */ |