text: /*===------------ avx512bf16intrin.h - AVX512_BF16 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
   *
   *===-----------------------------------------------------------------------===
   */
  #ifndef __IMMINTRIN_H
  #error "Never use <avx512bf16intrin.h> directly; include <immintrin.h> instead."
  #endif
  
  #ifndef __AVX512BF16INTRIN_H
  #define __AVX512BF16INTRIN_H
  
  typedef short __m512bh __attribute__((__vector_size__(64), __aligned__(64)));
  typedef short __m256bh __attribute__((__vector_size__(32), __aligned__(32)));
  typedef unsigned short __bfloat16;
  
  #define __DEFAULT_FN_ATTRS512 \
    __attribute__((__always_inline__, __nodebug__, __target__("avx512bf16"), \
                   __min_vector_width__(512)))
  #define __DEFAULT_FN_ATTRS                                                     \
    __attribute__((__always_inline__, __nodebug__, __target__("avx512bf16")))
  
  /// Convert One BF16 Data to One Single Float Data.
  ///
  /// \headerfile <x86intrin.h>
  ///
  /// This intrinsic does not correspond to a specific instruction.
  ///
  /// \param __A
  ///    A bfloat data.
  /// \returns A float data whose sign field and exponent field keep unchanged,
  ///    and fraction field is extended to 23 bits.
  static __inline__ float __DEFAULT_FN_ATTRS _mm_cvtsbh_ss(__bfloat16 __A) {
    return __builtin_ia32_cvtsbf162ss_32(__A);
  }
  
  /// Convert Two Packed Single Data to One Packed BF16 Data.
  ///
  /// \headerfile <x86intrin.h>
  ///
  /// This intrinsic corresponds to the <c> VCVTNE2PS2BF16 </c> instructions.
  ///
  /// \param __A
  ///    A 512-bit vector of [16 x float].
  /// \param __B
  ///    A 512-bit vector of [16 x float].
  /// \returns A 512-bit vector of [32 x bfloat] whose lower 256 bits come from
  ///    conversion of __B, and higher 256 bits come from conversion of __A.
  static __inline__ __m512bh __DEFAULT_FN_ATTRS512
  _mm512_cvtne2ps_pbh(__m512 __A, __m512 __B) {
    return (__m512bh)__builtin_ia32_cvtne2ps2bf16_512((__v16sf) __A,
                                                      (__v16sf) __B);
  }
  
  /// Convert Two Packed Single Data to One Packed BF16 Data.
  ///
  /// \headerfile <x86intrin.h>
  ///
  /// This intrinsic corresponds to the <c> VCVTNE2PS2BF16 </c> instructions.
  ///
  /// \param __A
  ///    A 512-bit vector of [16 x float].
  /// \param __B
  ///    A 512-bit vector of [16 x float].
  /// \param __W
  ///    A 512-bit vector of [32 x bfloat].
  /// \param __U
  ///    A 32-bit mask value specifying what is chosen for each element.
  ///    A 1 means conversion of __A or __B. A 0 means element from __W.
  /// \returns A 512-bit vector of [32 x bfloat] whose lower 256 bits come from
  ///    conversion of __B, and higher 256 bits come from conversion of __A.
  static __inline__ __m512bh __DEFAULT_FN_ATTRS512
  _mm512_mask_cvtne2ps_pbh(__m512bh __W, __mmask32 __U, __m512 __A, __m512 __B) {
    return (__m512bh)__builtin_ia32_selectw_512((__mmask32)__U,
                                          (__v32hi)_mm512_cvtne2ps_pbh(__A, __B),
                                          (__v32hi)__W);
  }
  
  /// Convert Two Packed Single Data to One Packed BF16 Data.
  ///
  /// \headerfile <x86intrin.h>
  ///
  /// This intrinsic corresponds to the <c> VCVTNE2PS2BF16 </c> instructions.
  ///
  /// \param __A
  ///    A 512-bit vector of [16 x float].
  /// \param __B
  ///    A 512-bit vector of [16 x float].
  /// \param __U
  ///    A 32-bit mask value specifying what is chosen for each element.
  ///    A 1 means conversion of __A or __B. A 0 means element is zero.
  /// \returns A 512-bit vector of [32 x bfloat] whose lower 256 bits come from
  ///    conversion of __B, and higher 256 bits come from conversion of __A.
  static __inline__ __m512bh __DEFAULT_FN_ATTRS512
  _mm512_maskz_cvtne2ps_pbh(__mmask32 __U, __m512 __A, __m512 __B) {
    return (__m512bh)__builtin_ia32_selectw_512((__mmask32)__U,
                                          (__v32hi)_mm512_cvtne2ps_pbh(__A, __B),
                                          (__v32hi)_mm512_setzero_si512());
  }
  
  /// Convert Packed Single Data to Packed BF16 Data.
  ///
  /// \headerfile <x86intrin.h>
  ///
  /// This intrinsic corresponds to the <c> VCVTNEPS2BF16 </c> instructions.
  ///
  /// \param __A
  ///    A 512-bit vector of [16 x float].
  /// \returns A 256-bit vector of [16 x bfloat] come from conversion of __A.
  static __inline__ __m256bh __DEFAULT_FN_ATTRS512
  _mm512_cvtneps_pbh(__m512 __A) {
    return (__m256bh)__builtin_ia32_cvtneps2bf16_512_mask((__v16sf)__A,
                                                (__v16hi)_mm256_undefined_si256(),
                                                (__mmask16)-1);
  }
  
  /// Convert Packed Single Data to Packed BF16 Data.
  ///
  /// \headerfile <x86intrin.h>
  ///
  /// This intrinsic corresponds to the <c> VCVTNEPS2BF16 </c> instructions.
  ///
  /// \param __A
  ///    A 512-bit vector of [16 x float].
  /// \param __W
  ///    A 256-bit vector of [16 x bfloat].
  /// \param __U
  ///    A 16-bit mask value specifying what is chosen for each element.
  ///    A 1 means conversion of __A. A 0 means element from __W.
  /// \returns A 256-bit vector of [16 x bfloat] come from conversion of __A.
  static __inline__ __m256bh __DEFAULT_FN_ATTRS512
  _mm512_mask_cvtneps_pbh(__m256bh __W, __mmask16 __U, __m512 __A) {
    return (__m256bh)__builtin_ia32_cvtneps2bf16_512_mask((__v16sf)__A,
                                                          (__v16hi)__W,
                                                          (__mmask16)__U);
  }
  
  /// Convert Packed Single Data to Packed BF16 Data.
  ///
  /// \headerfile <x86intrin.h>
  ///
  /// This intrinsic corresponds to the <c> VCVTNEPS2BF16 </c> instructions.
  ///
  /// \param __A
  ///    A 512-bit vector of [16 x float].
  /// \param __U
  ///    A 16-bit mask value specifying what is chosen for each element.
  ///    A 1 means conversion of __A. A 0 means element is zero.
  /// \returns A 256-bit vector of [16 x bfloat] come from conversion of __A.
  static __inline__ __m256bh __DEFAULT_FN_ATTRS512
  _mm512_maskz_cvtneps_pbh(__mmask16 __U, __m512 __A) {
    return (__m256bh)__builtin_ia32_cvtneps2bf16_512_mask((__v16sf)__A,
                                                  (__v16hi)_mm256_setzero_si256(),
                                                  (__mmask16)__U);
  }
  
  /// Dot Product of BF16 Pairs Accumulated into Packed Single Precision.
  ///
  /// \headerfile <x86intrin.h>
  ///
  /// This intrinsic corresponds to the <c> VDPBF16PS </c> instructions.
  ///
  /// \param __A
  ///    A 512-bit vector of [32 x bfloat].
  /// \param __B
  ///    A 512-bit vector of [32 x bfloat].
  /// \param __D
  ///    A 512-bit vector of [16 x float].
  /// \returns A 512-bit vector of [16 x float] comes from  Dot Product of
  ///  __A, __B and __D
  static __inline__ __m512 __DEFAULT_FN_ATTRS512
  _mm512_dpbf16_ps(__m512 __D, __m512bh __A, __m512bh __B) {
    return (__m512)__builtin_ia32_dpbf16ps_512((__v16sf) __D,
                                               (__v16si) __A,
                                               (__v16si) __B);
  }
  
  /// Dot Product of BF16 Pairs Accumulated into Packed Single Precision.
  ///
  /// \headerfile <x86intrin.h>
  ///
  /// This intrinsic corresponds to the <c> VDPBF16PS </c> instructions.
  ///
  /// \param __A
  ///    A 512-bit vector of [32 x bfloat].
  /// \param __B
  ///    A 512-bit vector of [32 x bfloat].
  /// \param __D
  ///    A 512-bit vector of [16 x float].
  /// \param __U
  ///    A 16-bit mask value specifying what is chosen for each element.
  ///    A 1 means __A and __B's dot product accumulated with __D. A 0 means __D.
  /// \returns A 512-bit vector of [16 x float] comes from  Dot Product of
  ///  __A, __B and __D
  static __inline__ __m512 __DEFAULT_FN_ATTRS512
  _mm512_mask_dpbf16_ps(__m512 __D, __mmask16 __U, __m512bh __A, __m512bh __B) {
    return (__m512)__builtin_ia32_selectps_512((__mmask16)__U,
                                         (__v16sf)_mm512_dpbf16_ps(__D, __A, __B),
                                         (__v16sf)__D);
  }
  
  /// Dot Product of BF16 Pairs Accumulated into Packed Single Precision.
  ///
  /// \headerfile <x86intrin.h>
  ///
  /// This intrinsic corresponds to the <c> VDPBF16PS </c> instructions.
  ///
  /// \param __A
  ///    A 512-bit vector of [32 x bfloat].
  /// \param __B
  ///    A 512-bit vector of [32 x bfloat].
  /// \param __D
  ///    A 512-bit vector of [16 x float].
  /// \param __U
  ///    A 16-bit mask value specifying what is chosen for each element.
  ///    A 1 means __A and __B's dot product accumulated with __D. A 0 means 0.
  /// \returns A 512-bit vector of [16 x float] comes from  Dot Product of
  ///  __A, __B and __D
  static __inline__ __m512 __DEFAULT_FN_ATTRS512
  _mm512_maskz_dpbf16_ps(__mmask16 __U, __m512 __D, __m512bh __A, __m512bh __B) {
    return (__m512)__builtin_ia32_selectps_512((__mmask16)__U,
                                         (__v16sf)_mm512_dpbf16_ps(__D, __A, __B),
                                         (__v16sf)_mm512_setzero_si512());
  }
  
  /// Convert Packed BF16 Data to Packed float Data.
  ///
  /// \headerfile <x86intrin.h>
  ///
  /// \param __A
  ///    A 256-bit vector of [16 x bfloat].
  /// \returns A 512-bit vector of [16 x float] come from convertion of __A
  static __inline__ __m512 __DEFAULT_FN_ATTRS512 _mm512_cvtpbh_ps(__m256bh __A) {
    return _mm512_castsi512_ps((__m512i)_mm512_slli_epi32(
        (__m512i)_mm512_cvtepi16_epi32((__m256i)__A), 16));
  }
  
  /// Convert Packed BF16 Data to Packed float Data using zeroing mask.
  ///
  /// \headerfile <x86intrin.h>
  ///
  /// \param __U
  ///    A 16-bit mask. Elements are zeroed out when the corresponding mask
  ///    bit is not set.
  /// \param __A
  ///    A 256-bit vector of [16 x bfloat].
  /// \returns A 512-bit vector of [16 x float] come from convertion of __A
  static __inline__ __m512 __DEFAULT_FN_ATTRS512
  _mm512_maskz_cvtpbh_ps(__mmask16 __U, __m256bh __A) {
    return _mm512_castsi512_ps((__m512i)_mm512_slli_epi32(
        (__m512i)_mm512_maskz_cvtepi16_epi32((__mmask16)__U, (__m256i)__A), 16));
  }
  
  /// Convert Packed BF16 Data to Packed float Data using merging mask.
  ///
  /// \headerfile <x86intrin.h>
  ///
  /// \param __S
  ///    A 512-bit vector of [16 x float]. Elements are copied from __S when
  ///     the corresponding mask bit is not set.
  /// \param __U
  ///    A 16-bit mask.
  /// \param __A
  ///    A 256-bit vector of [16 x bfloat].
  /// \returns A 512-bit vector of [16 x float] come from convertion of __A
  static __inline__ __m512 __DEFAULT_FN_ATTRS512
  _mm512_mask_cvtpbh_ps(__m512 __S, __mmask16 __U, __m256bh __A) {
    return _mm512_castsi512_ps((__m512i)_mm512_mask_slli_epi32(
        (__m512i)__S, (__mmask16)__U,
        (__m512i)_mm512_cvtepi16_epi32((__m256i)__A), 16));
  }
  
  #undef __DEFAULT_FN_ATTRS
  #undef __DEFAULT_FN_ATTRS512
  
  #endif
  