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/*===---- 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. */

#define __RELAXED_FN_ATTRS __attribute__((__always_inline__, __nodebug__))

#define _tzcnt_u16(a)     (__tzcnt_u16((a)))

/// Counts the number of trailing zero bits in the operand.

///

/// \headerfile <x86intrin.h>

///

/// This intrinsic corresponds to the <c> TZCNT </c> 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.

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>

///

/// This intrinsic corresponds to the <c> TZCNT </c> 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

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 </c> instruction.

///

/// \param __X

///    An unsigned 32-bit integer whose trailing zeros are to be counted.

/// \returns An 32-bit integer containing the number of trailing zero bits in

///    the operand.

/// \see __tzcnt_u32

static __inline__ int __RELAXED_FN_ATTRS

_mm_tzcnt_32(unsigned int __X)

{

  return (int)__builtin_ia32_tzcnt_u32(__X);

}

#define _tzcnt_u32(a)     (__tzcnt_u32((a)))

#ifdef __x86_64__

/// Counts the number of trailing zero bits in the operand.

///

/// \headerfile <x86intrin.h>

///

/// This intrinsic corresponds to the <c> TZCNT </c> 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

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 </c> 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

static __inline__ long long __RELAXED_FN_ATTRS

_mm_tzcnt_64(unsigned long long __X)

{

  return (long long)__builtin_ia32_tzcnt_u64(__X);

}

#define _tzcnt_u64(a)     (__tzcnt_u64((a)))

#endif /* __x86_64__ */

#undef __RELAXED_FN_ATTRS

#if !(defined(_MSC_VER) || defined(__SCE__)) || __has_feature(modules) ||      \

    defined(__BMI__)

/* Define the default attributes for the functions in this file. */

#define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("bmi")))

#define _andn_u32(a, b)   (__andn_u32((a), (b)))

/* _bextr_u32 != __bextr_u32 */

#define _blsi_u32(a)      (__blsi_u32((a)))

#define _blsmsk_u32(a)    (__blsmsk_u32((a)))

#define _blsr_u32(a)      (__blsr_u32((a)))

/// 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 </c> 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.

static __inline__ unsigned int __DEFAULT_FN_ATTRS

__andn_u32(unsigned int __X, unsigned int __Y)

{

  return ~__X & __Y;

}

/* 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 </c> 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 </c> 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 </c> 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 </c> 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.

static __inline__ unsigned int __DEFAULT_FN_ATTRS

__blsi_u32(unsigned int __X)

{

  return __X & -__X;

}

/// 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 </c> instruction.

///

/// \param __X

///    An unsigned integer used to create the mask.

/// \returns An unsigned integer containing the newly created mask.

static __inline__ unsigned int __DEFAULT_FN_ATTRS

__blsmsk_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>

///

/// This intrinsic corresponds to the <c> BLSR </c> instruction.

///

/// \param __X

///    An unsigned integer containing the operand to be cleared.

/// \returns An unsigned integer containing the result of clearing the source

///    operand.

static __inline__ unsigned int __DEFAULT_FN_ATTRS

__blsr_u32(unsigned int __X)

{

  return __X & (__X - 1);

}

#ifdef __x86_64__

#define _andn_u64(a, b)   (__andn_u64((a), (b)))

/* _bextr_u64 != __bextr_u64 */

#define _blsi_u64(a)      (__blsi_u64((a)))

#define _blsmsk_u64(a)    (__blsmsk_u64((a)))

#define _blsr_u64(a)      (__blsr_u64((a)))

/// 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 </c> 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.

static __inline__ unsigned long long __DEFAULT_FN_ATTRS

__andn_u64 (unsigned long long __X, unsigned long long __Y)

{

  return ~__X & __Y;

}

/* 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 </c> 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 </c> 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 </c> 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 </c> 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.

static __inline__ unsigned long long __DEFAULT_FN_ATTRS

__blsi_u64(unsigned long long __X)

{

  return __X & -__X;

}

/// 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 </c> instruction.

///

/// \param __X

///    An unsigned 64-bit integer used to create the mask.

/// \returns An unsigned 64-bit integer containing the newly created mask.

static __inline__ unsigned long long __DEFAULT_FN_ATTRS

__blsmsk_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>

///

/// This intrinsic corresponds to the <c> BLSR </c> 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.

static __inline__ unsigned long long __DEFAULT_FN_ATTRS

__blsr_u64(unsigned long long __X)

{

  return __X & (__X - 1);

}

#endif /* __x86_64__ */

#undef __DEFAULT_FN_ATTRS

#endif /* !(defined(_MSC_VER) || defined(__SCE__)) || __has_feature(modules)   \

          || defined(__BMI__) */

#endif /* __BMIINTRIN_H */