libgcc/config/epiphany/ieee-754/uneqsf2.S

   1 /* Copyright (C) 2008-2020 Free Software Foundation, Inc.
   2    Contributed by Embecosm on behalf of Adapteva, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify it under
   7 the terms of the GNU General Public License as published by the Free
   8 Software Foundation; either version 3, or (at your option) any later
   9 version.
  10
  11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 for more details.
  15
  16 Under Section 7 of GPL version 3, you are granted additional
  17 permissions described in the GCC Runtime Library Exception, version
  18 3.1, as published by the Free Software Foundation.
  19
  20 You should have received a copy of the GNU General Public License and
  21 a copy of the GCC Runtime Library Exception along with this program;
  22 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  23 <http://www.gnu.org/licenses/>.  */
  24
  25 #include "../epiphany-asm.h"
  26
  27         FSTAB (__uneqsf2,T_INT)
  28         .global SYM(__uneqsf2)
  29         .balign 8,,2
  30         HIDDEN_FUNC(__uneqsf2)
  31 SYM(__uneqsf2):
  32         sub     TMP0,r0,r1
  33         beq     .Lret
  34         orr     TMP0,r0,r1
  35         add     TMP0,TMP0,TMP0
  36         beq     .Lret
  37         mov     TMP0,1
  38         movt    TMP0,0xff00
  39         lsl     TMP1,r0,1
  40         sub     TMP1,TMP0,TMP1
  41         blteu   .Lret
  42         lsl     TMP1,r1,1
  43         sub     TMP1,TMP0,TMP1
  44 .Lret:  rts /* uneq: lteu */
  45         ENDFUNC(__uneqsf2)