sysdeps/sparc/sparc32/fpu/s_copysign.S

   1 /* copysign function, sparc32 version.
   2    Copyright (C) 2012-2018 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by David S. Miller <davem@davemloft.net>, 2012.
   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    <http://www.gnu.org/licenses/>.  */
  19
  20 #include <sysdep.h>
  21 #include <math_ldbl_opt.h>
  22 #include <libm-alias-double.h>
  23
  24 ENTRY (__copysign)
  25         sethi   %hi(0x80000000), %g1
  26         and     %o2, %g1, %o4
  27         andn    %o0, %g1, %o0
  28         or      %o0, %o4, %o0
  29         std     %o0, [%sp + 72]
  30         retl
  31          ldd    [%sp + 72], %f0
  32 END (__copysign)
  33 libm_alias_double (__copysign, copysign)
  34 #if LONG_DOUBLE_COMPAT (libc, GLIBC_2_0)
  35 compat_symbol (libc, __copysign, copysignl, GLIBC_2_0);
  36 #endif