gcc/config/aarch64/arm_bf16.h

   1 /* Arm BF16 instrinsics include file.
   2
   3    Copyright (C) 2019-2024 Free Software Foundation, Inc.
   4    Contributed by Arm.
   5
   6    This file is part of GCC.
   7
   8    GCC is free software; you can redistribute it and/or modify it
   9    under the terms of the GNU General Public License as published
  10    by the Free Software Foundation; either version 3, or (at your
  11    option) any later version.
  12
  13    GCC is distributed in the hope that it will be useful, but WITHOUT
  14    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  15    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  16    License for more details.
  17
  18    Under Section 7 of GPL version 3, you are granted additional
  19    permissions described in the GCC Runtime Library Exception, version
  20    3.1, as published by the Free Software Foundation.
  21
  22    You should have received a copy of the GNU General Public License and
  23    a copy of the GCC Runtime Library Exception along with this program;
  24    see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  25    <http://www.gnu.org/licenses/>.  */
  26
  27 #ifndef _AARCH64_BF16_H_
  28 #define _AARCH64_BF16_H_
  29
  30 typedef __bf16 bfloat16_t;
  31 typedef float float32_t;
  32
  33 #pragma GCC push_options
  34 #pragma GCC target ("+nothing+bf16+nosimd")
  35
  36 __extension__ extern __inline bfloat16_t
  37 __attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
  38 vcvth_bf16_f32 (float32_t __a)
  39 {
  40   return __builtin_aarch64_bfcvtbf (__a);
  41 }
  42
  43 __extension__ extern __inline float32_t
  44 __attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
  45 vcvtah_f32_bf16 (bfloat16_t __a)
  46 {
  47   return __builtin_aarch64_bfcvtsf (__a);
  48 }
  49
  50 #pragma GCC pop_options
  51
  52 #endif