sysdeps/sparc/sparc32/fpu/s_signbit.S

   1 /* signbit().  sparc32 version.
   2    Copyright (C) 2012-2014 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 #include <sysdep.h>
  20
  21 ENTRY (__signbit)
  22         retl
  23          srl    %o0, 31, %o0
  24 END (__signbit)
  25 weak_alias (__signbit, signbit)
  26
  27 /* On 32-bit the double version will also always work for
  28    single-precision since in both cases the word with the
  29    sign bit in it is passed always in register %o0.  */
  30 strong_alias (__signbit, __signbitf)
  31 hidden_def (__signbitf)
  32 weak_alias (__signbitf, signbitf)