libgcc/config/arc/ieee-754/uneqdf2.S

   1 /* Copyright (C) 2008-2016 Free Software Foundation, Inc.
   2    Contributor: Joern Rennecke <joern.rennecke@embecosm.com>
   3                 on behalf of Synopsys Inc.
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify it under
   8 the terms of the GNU General Public License as published by the Free
   9 Software Foundation; either version 3, or (at your option) any later
  10 version.
  11
  12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 for more details.
  16
  17 Under Section 7 of GPL version 3, you are granted additional
  18 permissions described in the GCC Runtime Library Exception, version
  19 3.1, as published by the Free Software Foundation.
  20
  21 You should have received a copy of the GNU General Public License and
  22 a copy of the GCC Runtime Library Exception along with this program;
  23 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  24 <http://www.gnu.org/licenses/>.  */
  25
  26 #include "arc-ieee-754.h"
  27 /* inputs: DBL0, DBL1
  28    output: z flag
  29    clobber: r12, flags
  30    For NaNs, bit 19.. bit 30 of the high word must be set.  */
  31 #if 0 /* DEBUG */
  32         .global __uneqdf2
  33         .balign 4
  34         FUNC(__uneqdf2)
  35 __uneqdf2:
  36         st.a r11,[sp,-4]` push_s blink` st.a r10,[sp,-4]` st.a r9,[sp,-4]
  37         st.a r8,[sp,-4]` st.a r7,[sp,-4]` st.a r6,[sp,-4]` st.a r5,[sp,-4]
  38         st.a r4,[sp,-4]` push_s r3` push_s r2` push_s r1`
  39         bl.d __eqdf2_c` push_s r0
  40         push_s r0` ld_s r0, [sp,4]` ld_s r1, [sp,8]` ld_s r2,[sp,12]
  41         bl.d __unorddf2_c` ld_s r3,[sp,16]
  42         ld.ab r11,[sp,4]` tst r0,r0` mov.ne r11,0
  43         pop_s r0` pop_s r1` pop_s r2` pop_s r3
  44         ld.ab r4,[sp,4]` ld.ab r5,[sp,4]` ld.ab r6,[sp,4]`
  45         ld.ab r7,[sp,4]` ld.ab r8,[sp,4]` ld.ab r9,[sp,4]
  46         bl.d __uneqdf2_asm` ld.ab r10,[sp,4]
  47         pop_s blink
  48         breq.d r11,0,0f
  49         ld.ab r11,[sp,4]
  50         jne_s [blink]
  51         bl abort
  52 0:      jeq_s [blink]
  53         bl abort
  54         ENDFUNC(__uneqdf2)
  55 #define __uneqdf2 __uneqdf2_asm
  56 #endif /* DEBUG */
  57         .global __uneqdf2
  58         .balign 4
  59         HIDDEN_FUNC(__uneqdf2)
  60 __uneqdf2:
  61         cmp_s   DBL0H,DBL1H
  62         cmp.eq  DBL0L,DBL1L
  63         jeq_s   [blink]
  64         or      r12,DBL0H,DBL1H
  65         or.f    0,DBL0L,DBL1L
  66         bclr.eq.f r12,r12,31
  67         jeq_s   [blink]
  68         mov_s   r12, \
  69                 0x7ff80000
  70         bic.f   0,r12,DBL0H
  71         j_s.d   [blink]
  72         bic.ne.f r12,r12,DBL1H
  73         ENDFUNC(__uneqdf2)