sysdeps/aarch64/fpu/bits/math-vector.h

   1 /* Platform-specific SIMD declarations of math functions.
   2
   3    Copyright (C) 2023 Free Software Foundation, Inc.
   4    This file is part of the GNU C Library.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, see
  18    <https://www.gnu.org/licenses/>.  */
  19
  20 #ifndef _MATH_H
  21 #  error "Never include <bits/math-vector.h> directly;\
  22  include <math.h> instead."
  23 #endif
  24
  25 /* Get default empty definitions for simd declarations.  */
  26 #include <bits/libm-simd-decl-stubs.h>
  27
  28 #if __GNUC_PREREQ(9, 0)
  29 #  define __ADVSIMD_VEC_MATH_SUPPORTED
  30 typedef __Float32x4_t __f32x4_t;
  31 typedef __Float64x2_t __f64x2_t;
  32 #elif __glibc_clang_prereq(8, 0)
  33 #  define __ADVSIMD_VEC_MATH_SUPPORTED
  34 typedef __attribute__ ((__neon_vector_type__ (4))) float __f32x4_t;
  35 typedef __attribute__ ((__neon_vector_type__ (2))) double __f64x2_t;
  36 #endif
  37
  38 #if __GNUC_PREREQ(10, 0) || __glibc_clang_prereq(11, 0)
  39 #  define __SVE_VEC_MATH_SUPPORTED
  40 typedef __SVFloat32_t __sv_f32_t;
  41 typedef __SVFloat64_t __sv_f64_t;
  42 typedef __SVBool_t __sv_bool_t;
  43 #endif
  44
  45 /* If vector types and vector PCS are unsupported in the working
  46    compiler, no choice but to omit vector math declarations.  */
  47
  48 #ifdef __ADVSIMD_VEC_MATH_SUPPORTED
  49
  50 #  define __vpcs __attribute__ ((__aarch64_vector_pcs__))
  51
  52 __vpcs __f32x4_t _ZGVnN4v_cosf (__f32x4_t);
  53 __vpcs __f32x4_t _ZGVnN4v_expf (__f32x4_t);
  54 __vpcs __f32x4_t _ZGVnN4v_logf (__f32x4_t);
  55 __vpcs __f32x4_t _ZGVnN4v_sinf (__f32x4_t);
  56 __vpcs __f32x4_t _ZGVnN4v_tanf (__f32x4_t);
  57
  58 __vpcs __f64x2_t _ZGVnN2v_cos (__f64x2_t);
  59 __vpcs __f64x2_t _ZGVnN2v_exp (__f64x2_t);
  60 __vpcs __f64x2_t _ZGVnN2v_log (__f64x2_t);
  61 __vpcs __f64x2_t _ZGVnN2v_sin (__f64x2_t);
  62 __vpcs __f64x2_t _ZGVnN2v_tan (__f64x2_t);
  63
  64 #  undef __ADVSIMD_VEC_MATH_SUPPORTED
  65 #endif /* __ADVSIMD_VEC_MATH_SUPPORTED */
  66
  67 #ifdef __SVE_VEC_MATH_SUPPORTED
  68
  69 __sv_f32_t _ZGVsMxv_cosf (__sv_f32_t, __sv_bool_t);
  70 __sv_f32_t _ZGVsMxv_expf (__sv_f32_t, __sv_bool_t);
  71 __sv_f32_t _ZGVsMxv_logf (__sv_f32_t, __sv_bool_t);
  72 __sv_f32_t _ZGVsMxv_sinf (__sv_f32_t, __sv_bool_t);
  73 __sv_f32_t _ZGVsMxv_tanf (__sv_f32_t, __sv_bool_t);
  74
  75 __sv_f64_t _ZGVsMxv_cos (__sv_f64_t, __sv_bool_t);
  76 __sv_f64_t _ZGVsMxv_exp (__sv_f64_t, __sv_bool_t);
  77 __sv_f64_t _ZGVsMxv_log (__sv_f64_t, __sv_bool_t);
  78 __sv_f64_t _ZGVsMxv_sin (__sv_f64_t, __sv_bool_t);
  79 __sv_f64_t _ZGVsMxv_tan (__sv_f64_t, __sv_bool_t);
  80
  81 #  undef __SVE_VEC_MATH_SUPPORTED
  82 #endif /* __SVE_VEC_MATH_SUPPORTED */