/*===---- bmiintrin.h - BMI intrinsics -------------------------------------===
*
* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
* See https://llvm.org/LICENSE.txt for license information.
* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
*
*===-----------------------------------------------------------------------===
*/
#if !defined __X86INTRIN_H && !defined __IMMINTRIN_H
#error "Never use <bmiintrin.h> directly; include <x86intrin.h> instead."
#endif
#ifndef __BMIINTRIN_H
#define __BMIINTRIN_H
/* Allow using the tzcnt intrinsics even for non-BMI targets. Since the TZCNT
instruction behaves as BSF on non-BMI targets, there is code that expects
to use it as a potentially faster version of BSF. */
#if defined(__cplusplus) && (__cplusplus >= 201103L)
#define __RELAXED_FN_ATTRS \
__attribute__((__always_inline__, __nodebug__)) constexpr
#else
#define __RELAXED_FN_ATTRS __attribute__((__always_inline__, __nodebug__))
#endif
/// Counts the number of trailing zero bits in the operand.
///
/// \headerfile <x86intrin.h>
///
/// This intrinsic corresponds to the \c TZCNT instruction.
///
/// \param __X
/// An unsigned 16-bit integer whose trailing zeros are to be counted.
/// \returns An unsigned 16-bit integer containing the number of trailing zero
/// bits in the operand.
/// \see _tzcnt_u16
static __inline__ unsigned short __RELAXED_FN_ATTRS
__tzcnt_u16(unsigned short __X) {
return __builtin_ia32_tzcnt_u16(__X);
}
/// Counts the number of trailing zero bits in the operand.
///
/// \headerfile <x86intrin.h>
///
/// \code
/// unsigned short _tzcnt_u16(unsigned short __X);
/// \endcode
///
/// This intrinsic corresponds to the \c TZCNT instruction.
///
/// \param __X
/// An unsigned 16-bit integer whose trailing zeros are to be counted.
/// \returns An unsigned 16-bit integer containing the number of trailing zero
/// bits in the operand.
/// \see __tzcnt_u16
#define _tzcnt_u16 __tzcnt_u16
/// Counts the number of trailing zero bits in the operand.
///
/// \headerfile <x86intrin.h>
///
/// This intrinsic corresponds to the \c TZCNT instruction.
///
/// \param __X
/// An unsigned 32-bit integer whose trailing zeros are to be counted.
/// \returns An unsigned 32-bit integer containing the number of trailing zero
/// bits in the operand.
/// \see { _mm_tzcnt_32 _tzcnt_u32 }
static __inline__ unsigned int __RELAXED_FN_ATTRS
__tzcnt_u32(unsigned int __X) {
return __builtin_ia32_tzcnt_u32(__X);
}
/// Counts the number of trailing zero bits in the operand.
///
/// \headerfile <x86intrin.h>
///
/// This intrinsic corresponds to the \c TZCNT instruction.
///
/// \param __X
/// An unsigned 32-bit integer whose trailing zeros are to be counted.
/// \returns A 32-bit integer containing the number of trailing zero bits in
/// the operand.
/// \see { __tzcnt_u32 _tzcnt_u32 }
static __inline__ int __RELAXED_FN_ATTRS
_mm_tzcnt_32(unsigned int __X) {
return (int)__builtin_ia32_tzcnt_u32(__X);
}
/// Counts the number of trailing zero bits in the operand.
///
/// \headerfile <x86intrin.h>
///
/// \code
/// unsigned int _tzcnt_u32(unsigned int __X);
/// \endcode
///
/// This intrinsic corresponds to the \c TZCNT instruction.
///
/// \param __X
/// An unsigned 32-bit integer whose trailing zeros are to be counted.
/// \returns An unsigned 32-bit integer containing the number of trailing zero
/// bits in the operand.
/// \see { _mm_tzcnt_32 __tzcnt_u32 }
#define _tzcnt_u32 __tzcnt_u32
#ifdef __x86_64__
/// Counts the number of trailing zero bits in the operand.
///
/// \headerfile <x86intrin.h>
///
/// This intrinsic corresponds to the \c TZCNT instruction.
///
/// \param __X
/// An unsigned 64-bit integer whose trailing zeros are to be counted.
/// \returns An unsigned 64-bit integer containing the number of trailing zero
/// bits in the operand.
/// \see { _mm_tzcnt_64 _tzcnt_u64 }
static __inline__ unsigned long long __RELAXED_FN_ATTRS
__tzcnt_u64(unsigned long long __X) {
return __builtin_ia32_tzcnt_u64(__X);
}
/// Counts the number of trailing zero bits in the operand.
///
/// \headerfile <x86intrin.h>
///
/// This intrinsic corresponds to the \c TZCNT instruction.
///
/// \param __X
/// An unsigned 64-bit integer whose trailing zeros are to be counted.
/// \returns An 64-bit integer containing the number of trailing zero bits in
/// the operand.
/// \see { __tzcnt_u64 _tzcnt_u64 }
static __inline__ long long __RELAXED_FN_ATTRS
_mm_tzcnt_64(unsigned long long __X) {
return (long long)__builtin_ia32_tzcnt_u64(__X);
}
/// Counts the number of trailing zero bits in the operand.
///
/// \headerfile <x86intrin.h>
///
/// \code
/// unsigned long long _tzcnt_u64(unsigned long long __X);
/// \endcode
///
/// This intrinsic corresponds to the \c TZCNT instruction.
///
/// \param __X
/// An unsigned 64-bit integer whose trailing zeros are to be counted.
/// \returns An unsigned 64-bit integer containing the number of trailing zero
/// bits in the operand.
/// \see { _mm_tzcnt_64 __tzcnt_u64
#define _tzcnt_u64 __tzcnt_u64
#endif /* __x86_64__ */
#undef __RELAXED_FN_ATTRS
#if !defined(__SCE__) || __has_feature(modules) || defined(__BMI__)
/* Define the default attributes for the functions in this file. */
#if defined(__cplusplus) && (__cplusplus >= 201103L)
#define __DEFAULT_FN_ATTRS \
__attribute__((__always_inline__, __nodebug__, __target__("bmi"))) constexpr
#else
#define __DEFAULT_FN_ATTRS \
__attribute__((__always_inline__, __nodebug__, __target__("bmi")))
#endif
/// Performs a bitwise AND of the second operand with the one's
/// complement of the first operand.
///
/// \headerfile <x86intrin.h>
///
/// This intrinsic corresponds to the \c ANDN instruction.
///
/// \param __X
/// An unsigned integer containing one of the operands.
/// \param __Y
/// An unsigned integer containing one of the operands.
/// \returns An unsigned integer containing the bitwise AND of the second
/// operand with the one's complement of the first operand.
/// \see _andn_u32
static __inline__ unsigned int __DEFAULT_FN_ATTRS
__andn_u32(unsigned int __X, unsigned int __Y) {
return ~__X & __Y;
}
/// Performs a bitwise AND of the second operand with the one's
/// complement of the first operand.
///
/// \headerfile <x86intrin.h>
///
/// \code
/// unsigned int _andn_u32(unsigned int __X, unsigned int __Y);
/// \endcode
///
/// This intrinsic corresponds to the \c ANDN instruction.
///
/// \param __X
/// An unsigned integer containing one of the operands.
/// \param __Y
/// An unsigned integer containing one of the operands.
/// \returns An unsigned integer containing the bitwise AND of the second
/// operand with the one's complement of the first operand.
/// \see __andn_u32
#define _andn_u32 __andn_u32
/* AMD-specified, double-leading-underscore version of BEXTR */
/// Extracts the specified bits from the first operand and returns them
/// in the least significant bits of the result.
///
/// \headerfile <x86intrin.h>
///
/// This intrinsic corresponds to the \c BEXTR instruction.
///
/// \param __X
/// An unsigned integer whose bits are to be extracted.
/// \param __Y
/// An unsigned integer used to specify which bits are extracted. Bits [7:0]
/// specify the index of the least significant bit. Bits [15:8] specify the
/// number of bits to be extracted.
/// \returns An unsigned integer whose least significant bits contain the
/// extracted bits.
/// \see _bextr_u32
static __inline__ unsigned int __DEFAULT_FN_ATTRS
__bextr_u32(unsigned int __X, unsigned int __Y) {
return __builtin_ia32_bextr_u32(__X, __Y);
}
/* Intel-specified, single-leading-underscore version of BEXTR */
/// Extracts the specified bits from the first operand and returns them
/// in the least significant bits of the result.
///
/// \headerfile <x86intrin.h>
///
/// This intrinsic corresponds to the \c BEXTR instruction.
///
/// \param __X
/// An unsigned integer whose bits are to be extracted.
/// \param __Y
/// An unsigned integer used to specify the index of the least significant
/// bit for the bits to be extracted. Bits [7:0] specify the index.
/// \param __Z
/// An unsigned integer used to specify the number of bits to be extracted.
/// Bits [7:0] specify the number of bits.
/// \returns An unsigned integer whose least significant bits contain the
/// extracted bits.
/// \see __bextr_u32
static __inline__ unsigned int __DEFAULT_FN_ATTRS
_bextr_u32(unsigned int __X, unsigned int __Y, unsigned int __Z) {
return __builtin_ia32_bextr_u32(__X, ((__Y & 0xff) | ((__Z & 0xff) << 8)));
}
/* Intel-specified, single-leading-underscore version of BEXTR2 */
/// Extracts the specified bits from the first operand and returns them
/// in the least significant bits of the result.
///
/// \headerfile <x86intrin.h>
///
/// This intrinsic corresponds to the \c BEXTR instruction.
///
/// \param __X
/// An unsigned integer whose bits are to be extracted.
/// \param __Y
/// An unsigned integer used to specify which bits are extracted. Bits [7:0]
/// specify the index of the least significant bit. Bits [15:8] specify the
/// number of bits to be extracted.
/// \returns An unsigned integer whose least significant bits contain the
/// extracted bits.
/// \see __bextr_u32
static __inline__ unsigned int __DEFAULT_FN_ATTRS
_bextr2_u32(unsigned int __X, unsigned int __Y) {
return __builtin_ia32_bextr_u32(__X, __Y);
}
/// Clears all bits in the source except for the least significant bit
/// containing a value of 1 and returns the result.
///
/// \headerfile <x86intrin.h>
///
/// This intrinsic corresponds to the \c BLSI instruction.
///
/// \param __X
/// An unsigned integer whose bits are to be cleared.
/// \returns An unsigned integer containing the result of clearing the bits from
/// the source operand.
/// \see _blsi_u32
static __inline__ unsigned int __DEFAULT_FN_ATTRS
__blsi_u32(unsigned int __X) {
return __X & -__X;
}
/// Clears all bits in the source except for the least significant bit
/// containing a value of 1 and returns the result.
///
/// \headerfile <x86intrin.h>
///
/// \code
/// unsigned int _blsi_u32(unsigned int __X);
/// \endcode
///
/// This intrinsic corresponds to the \c BLSI instruction.
///
/// \param __X
/// An unsigned integer whose bits are to be cleared.
/// \returns An unsigned integer containing the result of clearing the bits from
/// the source operand.
/// \see __blsi_u32
#define _blsi_u32 __blsi_u32
/// Creates a mask whose bits are set to 1, using bit 0 up to and
/// including the least significant bit that is set to 1 in the source
/// operand and returns the result.
///
/// \headerfile <x86intrin.h>
///
/// This intrinsic corresponds to the \c BLSMSK instruction.
///
/// \param __X
/// An unsigned integer used to create the mask.
/// \returns An unsigned integer containing the newly created mask.
/// \see _blsmsk_u32
static __inline__ unsigned int __DEFAULT_FN_ATTRS
__blsmsk_u32(unsigned int __X) {
return __X ^ (__X - 1);
}
/// Creates a mask whose bits are set to 1, using bit 0 up to and
/// including the least significant bit that is set to 1 in the source
/// operand and returns the result.
///
/// \headerfile <x86intrin.h>
///
/// \code
/// unsigned int _blsmsk_u32(unsigned int __X);
/// \endcode
///
/// This intrinsic corresponds to the \c BLSMSK instruction.
///
/// \param __X
/// An unsigned integer used to create the mask.
/// \returns An unsigned integer containing the newly created mask.
/// \see __blsmsk_u32
#define _blsmsk_u32 __blsmsk_u32
/// Clears the least significant bit that is set to 1 in the source
/// operand and returns the result.
///
/// \headerfile <x86intrin.h>
///
/// This intrinsic corresponds to the \c BLSR instruction.
///
/// \param __X
/// An unsigned integer containing the operand to be cleared.
/// \returns An unsigned integer containing the result of clearing the source
/// operand.
/// \see _blsr_u32
static __inline__ unsigned int __DEFAULT_FN_ATTRS
__blsr_u32(unsigned int __X) {
return __X & (__X - 1);
}
/// Clears the least significant bit that is set to 1 in the source
/// operand and returns the result.
///
/// \headerfile <x86intrin.h>
///
/// \code
/// unsigned int _bls4_u32(unsigned int __X);
/// \endcode
///
/// This intrinsic corresponds to the \c BLSR instruction.
///
/// \param __X
/// An unsigned integer containing the operand to be cleared.
/// \returns An unsigned integer containing the result of clearing the source
/// operand.
/// \see __blsr_u32
#define _blsr_u32 __blsr_u32
#ifdef __x86_64__
/// Performs a bitwise AND of the second operand with the one's
/// complement of the first operand.
///
/// \headerfile <x86intrin.h>
///
/// This intrinsic corresponds to the \c ANDN instruction.
///
/// \param __X
/// An unsigned 64-bit integer containing one of the operands.
/// \param __Y
/// An unsigned 64-bit integer containing one of the operands.
/// \returns An unsigned 64-bit integer containing the bitwise AND of the second
/// operand with the one's complement of the first operand.
/// \see _andn_u64
static __inline__ unsigned long long __DEFAULT_FN_ATTRS
__andn_u64 (unsigned long long __X, unsigned long long __Y) {
return ~__X & __Y;
}
/// Performs a bitwise AND of the second operand with the one's
/// complement of the first operand.
///
/// \headerfile <x86intrin.h>
///
/// \code
/// unsigned long long _andn_u64(unsigned long long __X,
/// unsigned long long __Y);
/// \endcode
///
/// This intrinsic corresponds to the \c ANDN instruction.
///
/// \param __X
/// An unsigned 64-bit integer containing one of the operands.
/// \param __Y
/// An unsigned 64-bit integer containing one of the operands.
/// \returns An unsigned 64-bit integer containing the bitwise AND of the second
/// operand with the one's complement of the first operand.
/// \see __andn_u64
#define _andn_u64 __andn_u64
/* AMD-specified, double-leading-underscore version of BEXTR */
/// Extracts the specified bits from the first operand and returns them
/// in the least significant bits of the result.
///
/// \headerfile <x86intrin.h>
///
/// This intrinsic corresponds to the \c BEXTR instruction.
///
/// \param __X
/// An unsigned 64-bit integer whose bits are to be extracted.
/// \param __Y
/// An unsigned 64-bit integer used to specify which bits are extracted. Bits
/// [7:0] specify the index of the least significant bit. Bits [15:8] specify
/// the number of bits to be extracted.
/// \returns An unsigned 64-bit integer whose least significant bits contain the
/// extracted bits.
/// \see _bextr_u64
static __inline__ unsigned long long __DEFAULT_FN_ATTRS
__bextr_u64(unsigned long long __X, unsigned long long __Y) {
return __builtin_ia32_bextr_u64(__X, __Y);
}
/* Intel-specified, single-leading-underscore version of BEXTR */
/// Extracts the specified bits from the first operand and returns them
/// in the least significant bits of the result.
///
/// \headerfile <x86intrin.h>
///
/// This intrinsic corresponds to the \c BEXTR instruction.
///
/// \param __X
/// An unsigned 64-bit integer whose bits are to be extracted.
/// \param __Y
/// An unsigned integer used to specify the index of the least significant
/// bit for the bits to be extracted. Bits [7:0] specify the index.
/// \param __Z
/// An unsigned integer used to specify the number of bits to be extracted.
/// Bits [7:0] specify the number of bits.
/// \returns An unsigned 64-bit integer whose least significant bits contain the
/// extracted bits.
/// \see __bextr_u64
static __inline__ unsigned long long __DEFAULT_FN_ATTRS
_bextr_u64(unsigned long long __X, unsigned int __Y, unsigned int __Z) {
return __builtin_ia32_bextr_u64(__X, ((__Y & 0xff) | ((__Z & 0xff) << 8)));
}
/* Intel-specified, single-leading-underscore version of BEXTR2 */
/// Extracts the specified bits from the first operand and returns them
/// in the least significant bits of the result.
///
/// \headerfile <x86intrin.h>
///
/// This intrinsic corresponds to the \c BEXTR instruction.
///
/// \param __X
/// An unsigned 64-bit integer whose bits are to be extracted.
/// \param __Y
/// An unsigned 64-bit integer used to specify which bits are extracted. Bits
/// [7:0] specify the index of the least significant bit. Bits [15:8] specify
/// the number of bits to be extracted.
/// \returns An unsigned 64-bit integer whose least significant bits contain the
/// extracted bits.
/// \see __bextr_u64
static __inline__ unsigned long long __DEFAULT_FN_ATTRS
_bextr2_u64(unsigned long long __X, unsigned long long __Y) {
return __builtin_ia32_bextr_u64(__X, __Y);
}
/// Clears all bits in the source except for the least significant bit
/// containing a value of 1 and returns the result.
///
/// \headerfile <x86intrin.h>
///
/// This intrinsic corresponds to the \c BLSI instruction.
///
/// \param __X
/// An unsigned 64-bit integer whose bits are to be cleared.
/// \returns An unsigned 64-bit integer containing the result of clearing the
/// bits from the source operand.
/// \see _blsi_u64
static __inline__ unsigned long long __DEFAULT_FN_ATTRS
__blsi_u64(unsigned long long __X) {
return __X & -__X;
}
/// Clears all bits in the source except for the least significant bit
/// containing a value of 1 and returns the result.
///
/// \headerfile <x86intrin.h>
///
/// \code
/// unsigned long long _blsi_u64(unsigned long long __X);
/// \endcode
///
/// This intrinsic corresponds to the \c BLSI instruction.
///
/// \param __X
/// An unsigned 64-bit integer whose bits are to be cleared.
/// \returns An unsigned 64-bit integer containing the result of clearing the
/// bits from the source operand.
/// \see __blsi_u64
#define _blsi_u64 __blsi_u64
/// Creates a mask whose bits are set to 1, using bit 0 up to and
/// including the least significant bit that is set to 1 in the source
/// operand and returns the result.
///
/// \headerfile <x86intrin.h>
///
/// This intrinsic corresponds to the \c BLSMSK instruction.
///
/// \param __X
/// An unsigned 64-bit integer used to create the mask.
/// \returns An unsigned 64-bit integer containing the newly created mask.
/// \see _blsmsk_u64
static __inline__ unsigned long long __DEFAULT_FN_ATTRS
__blsmsk_u64(unsigned long long __X) {
return __X ^ (__X - 1);
}
/// Creates a mask whose bits are set to 1, using bit 0 up to and
/// including the least significant bit that is set to 1 in the source
/// operand and returns the result.
///
/// \headerfile <x86intrin.h>
///
/// \code
/// unsigned long long _blsmsk_u64(unsigned long long __X);
/// \endcode
///
/// This intrinsic corresponds to the \c BLSMSK instruction.
///
/// \param __X
/// An unsigned 64-bit integer used to create the mask.
/// \returns An unsigned 64-bit integer containing the newly created mask.
/// \see __blsmsk_u64
#define _blsmsk_u64 __blsmsk_u64
/// Clears the least significant bit that is set to 1 in the source
/// operand and returns the result.
///
/// \headerfile <x86intrin.h>
///
/// This intrinsic corresponds to the \c BLSR instruction.
///
/// \param __X
/// An unsigned 64-bit integer containing the operand to be cleared.
/// \returns An unsigned 64-bit integer containing the result of clearing the
/// source operand.
/// \see _blsr_u64
static __inline__ unsigned long long __DEFAULT_FN_ATTRS
__blsr_u64(unsigned long long __X) {
return __X & (__X - 1);
}
/// Clears the least significant bit that is set to 1 in the source
/// operand and returns the result.
///
/// \headerfile <x86intrin.h>
///
/// \code
/// unsigned long long _blsr_u64(unsigned long long __X);
/// \endcode
///
/// This intrinsic corresponds to the \c BLSR instruction.
///
/// \param __X
/// An unsigned 64-bit integer containing the operand to be cleared.
/// \returns An unsigned 64-bit integer containing the result of clearing the
/// source operand.
/// \see __blsr_u64
#define _blsr_u64 __blsr_u64
#endif /* __x86_64__ */
#undef __DEFAULT_FN_ATTRS
#endif /* !defined(__SCE__) || __has_feature(modules) || defined(__BMI__) */
#endif /* __BMIINTRIN_H */
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