sysdeps/powerpc/powerpc64/fpu/multiarch/s_llrint.c

   1 /* Multiple versions of llrint.
   2    Copyright (C) 2013-2019 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 /* Redefine lrint/__lrint so that the compiler won't complain about the type
  20    mismatch with the IFUNC selector in strong_alias below.  */
  21 #define lrint __hidden_lrint
  22 #define __lrint __hidden___lrint
  23
  24 #include <math.h>
  25 #include <math_ldbl_opt.h>
  26 #undef lrint
  27 #undef __lrint
  28 #include <shlib-compat.h>
  29 #include "init-arch.h"
  30 #include <libm-alias-double.h>
  31
  32 extern __typeof (__llrint) __llrint_ppc64 attribute_hidden;
  33 extern __typeof (__llrint) __llrint_power6x attribute_hidden;
  34 extern __typeof (__llrint) __llrint_power8 attribute_hidden;
  35
  36 libc_ifunc (__llrint,
  37             (hwcap2 & PPC_FEATURE2_ARCH_2_07)
  38             ? __llrint_power8 :
  39               (hwcap & PPC_FEATURE_POWER6_EXT)
  40               ? __llrint_power6x
  41             : __llrint_ppc64);
  42
  43 libm_alias_double (__llrint, llrint)
  44
  45 /* long has the same width as long long on PowerPC64.  */
  46 strong_alias (__llrint, __lrint)
  47 libm_alias_double (__lrint, lrint)