sysdeps/sparc/sparc64/multiarch/sub_n.S

   1 /* Multiple versions of sub_n
   2
   3    Copyright (C) 2013-2015 Free Software Foundation, Inc.
   4    Contributed by David S. Miller (davem@davemloft.net)
   5    This file is part of the GNU C Library.
   6
   7    The GNU C Library is free software; you can redistribute it and/or
   8    modify it under the terms of the GNU Lesser General Public
   9    License as published by the Free Software Foundation; either
  10    version 2.1 of the License, or (at your option) any later version.
  11
  12    The GNU C Library is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15    Lesser General Public License for more details.
  16
  17    You should have received a copy of the GNU Lesser General Public
  18    License along with the GNU C Library; if not, see
  19    <http://www.gnu.org/licenses/>.  */
  20
  21 #include <sysdep.h>
  22
  23 ENTRY(__mpn_sub_n)
  24         .type   __mpn_sub_n, @gnu_indirect_function
  25 # ifdef SHARED
  26         SETUP_PIC_REG_LEAF(o3, o5)
  27 # endif
  28         set     HWCAP_SPARC_VIS3, %o1
  29         andcc   %o0, %o1, %g0
  30         be      1f
  31          nop
  32 # ifdef SHARED
  33         sethi   %gdop_hix22(__mpn_sub_n_vis3), %o1
  34         xor     %o1, %gdop_lox10(__mpn_sub_n_vis3), %o1
  35 # else
  36         set     __mpn_sub_n_vis3, %o1
  37 # endif
  38         ba      10f
  39          nop
  40 1:
  41 # ifdef SHARED
  42         sethi   %gdop_hix22(__mpn_sub_n_generic), %o1
  43         xor     %o1, %gdop_lox10(__mpn_sub_n_generic), %o1
  44 # else
  45         set     __mpn_sub_n_generic, %o1
  46 # endif
  47 10:
  48 # ifdef SHARED
  49         add     %o3, %o1, %o1
  50 # endif
  51         retl
  52          mov    %o1, %o0
  53 END(__mpn_sub_n)
  54
  55 #define __mpn_sub_n __mpn_sub_n_generic
  56 #include "../sub_n.S"