sysdeps/sparc/sparc32/fpu/s_copysign.S

   1 /* copysign function, sparc32 version.
   2    Copyright (C) 2012-2021 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    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <sysdep.h>
  20 #include <math_ldbl_opt.h>
  21 #include <libm-alias-double.h>
  22
  23 ENTRY (__copysign)
  24         sethi   %hi(0x80000000), %g1
  25         and     %o2, %g1, %o4
  26         andn    %o0, %g1, %o0
  27         or      %o0, %o4, %o0
  28         std     %o0, [%sp + 72]
  29         retl
  30          ldd    [%sp + 72], %f0
  31 END (__copysign)
  32 libm_alias_double (__copysign, copysign)
  33 #if LONG_DOUBLE_COMPAT (libc, GLIBC_2_0)
  34 compat_symbol (libc, __copysign, copysignl, GLIBC_2_0);
  35 #endif