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Diffstat (limited to 'contrib/llvm-project/clang/lib/Headers/bmiintrin.h')
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diff --git a/contrib/llvm-project/clang/lib/Headers/bmiintrin.h b/contrib/llvm-project/clang/lib/Headers/bmiintrin.h new file mode 100644 index 000000000000..78bffe68e221 --- /dev/null +++ b/contrib/llvm-project/clang/lib/Headers/bmiintrin.h @@ -0,0 +1,614 @@ +/*===---- 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__)) + +/// 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. */ +#define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("bmi"))) + +/// 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 */ |