sysdeps/x86/fpu/bits/math-vector.h

   1 /* Platform-specific SIMD declarations of math functions.
   2    Copyright (C) 2014-2015 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _MATH_H
  20 # error "Never include <bits/math-vector.h> directly;\
  21  include <math.h> instead."
  22 #endif
  23
  24 /* Get default empty definitions for simd declarations.  */
  25 #include <bits/libm-simd-decl-stubs.h>
  26
  27 #if defined __x86_64__ && defined __FAST_MATH__
  28 # if defined _OPENMP && _OPENMP >= 201307
  29 /* OpenMP case.  */
  30 #  define __DECL_SIMD_x86_64 _Pragma ("omp declare simd notinbranch")
  31 #  undef __DECL_SIMD_cos
  32 #  define __DECL_SIMD_cos __DECL_SIMD_x86_64
  33 #  undef __DECL_SIMD_cosf
  34 #  define __DECL_SIMD_cosf __DECL_SIMD_x86_64
  35 #  undef __DECL_SIMD_sin
  36 #  define __DECL_SIMD_sin __DECL_SIMD_x86_64
  37 #  undef __DECL_SIMD_sinf
  38 #  define __DECL_SIMD_sinf __DECL_SIMD_x86_64
  39 #  undef __DECL_SIMD_log
  40 #  define __DECL_SIMD_log __DECL_SIMD_x86_64
  41 #  undef __DECL_SIMD_logf
  42 #  define __DECL_SIMD_logf __DECL_SIMD_x86_64
  43
  44 /* Workaround to exclude unnecessary symbol aliases in libmvec
  45    while GCC creates the vector names based on scalar asm name.
  46    Corresponding discussion started at
  47    <https://gcc.gnu.org/ml/gcc/2015-06/msg00173.html>.  */
  48 __asm__ ("_ZGVbN2v___log_finite = _ZGVbN2v_log");
  49 __asm__ ("_ZGVcN4v___log_finite = _ZGVcN4v_log");
  50 __asm__ ("_ZGVdN4v___log_finite = _ZGVdN4v_log");
  51 __asm__ ("_ZGVeN8v___log_finite = _ZGVeN8v_log");
  52 __asm__ ("_ZGVbN4v___logf_finite = _ZGVbN4v_logf");
  53 __asm__ ("_ZGVcN8v___logf_finite = _ZGVcN8v_logf");
  54 __asm__ ("_ZGVdN8v___logf_finite = _ZGVdN8v_logf");
  55 __asm__ ("_ZGVeN16v___logf_finite = _ZGVeN16v_logf");
  56
  57 # endif
  58 #endif