87 lines
2.5 KiB
ArmAsm
87 lines
2.5 KiB
ArmAsm
/* Copyright (C) 2008-2014 Free Software Foundation, Inc.
|
|
Contributor: Joern Rennecke <joern.rennecke@embecosm.com>
|
|
on behalf of Synopsys Inc.
|
|
|
|
This file is part of GCC.
|
|
|
|
GCC is free software; you can redistribute it and/or modify it under
|
|
the terms of the GNU General Public License as published by the Free
|
|
Software Foundation; either version 3, or (at your option) any later
|
|
version.
|
|
|
|
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
for more details.
|
|
|
|
Under Section 7 of GPL version 3, you are granted additional
|
|
permissions described in the GCC Runtime Library Exception, version
|
|
3.1, as published by the Free Software Foundation.
|
|
|
|
You should have received a copy of the GNU General Public License and
|
|
a copy of the GCC Runtime Library Exception along with this program;
|
|
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include "arc-ieee-754.h"
|
|
/* inputs: DBL0, DBL1
|
|
output: c flags to be used for 'hs' condition
|
|
clobber: r12, flags */
|
|
/* For NaNs, bit 19.. bit 30 of the high word must be set. */
|
|
#if 0 /* DEBUG */
|
|
.global __gedf2
|
|
.balign 4
|
|
FUNC(__gedf2)
|
|
__gedf2:
|
|
st.a r11,[sp,-4]` push_s blink` st.a r10,[sp,-4]` st.a r9,[sp,-4]
|
|
st.a r8,[sp,-4]` st.a r7,[sp,-4]` st.a r6,[sp,-4]` st.a r5,[sp,-4]
|
|
st.a r4,[sp,-4]` push_s r3` push_s r2` push_s r1`
|
|
bl.d __gedf2_c` push_s r0
|
|
mov r11,r0` pop_s r0` pop_s r1` pop_s r2` pop_s r3
|
|
ld.ab r4,[sp,4]` ld.ab r5,[sp,4]` ld.ab r6,[sp,4]`
|
|
ld.ab r7,[sp,4]` ld.ab r8,[sp,4]` ld.ab r9,[sp,4]
|
|
bl.d __gedf2_asm` ld.ab r10,[sp,4]
|
|
pop_s blink
|
|
brge.d r11,0,0f
|
|
ld.ab r11,[sp,4]
|
|
jlo [blink]
|
|
bl abort
|
|
0: jhs [blink]
|
|
bl abort
|
|
ENDFUNC(__gedf2)
|
|
#define __gedf2 __gedf2_asm
|
|
#endif /* DEBUG */
|
|
.global __gedf2
|
|
.balign 4
|
|
HIDDEN_FUNC(__gedf2)
|
|
__gedf2:
|
|
or.f r12,DBL0H,DBL1H
|
|
bmi.d .Lneg
|
|
bmsk_s r12,r12,20
|
|
add1.f 0,r12,DBL0H ; clear z; set c iff NaN
|
|
add1.cc.f r12,r12,DBL1H ; clear z; set c iff NaN
|
|
bbit1 DBL0H,31,.Lneg
|
|
cmp.cc DBL0H,DBL1H
|
|
j_s.d [blink]
|
|
cmp.eq DBL0L,DBL1L
|
|
.balign 4
|
|
.Lneg: breq.d DBL1H,0,.L0
|
|
add1.f 0,r12,DBL0H
|
|
add1.cc.f r12,r12,DBL1H
|
|
cmp.cc DBL1H,DBL0H
|
|
j_s.d [blink]
|
|
cmp.eq DBL1L,DBL0L
|
|
.balign 4
|
|
.L0:
|
|
bxor.f 0,DBL0H,31 ; check for high word of -0.
|
|
beq_s .Lcheck_0
|
|
cmp.cc DBL1H,DBL0H
|
|
j_s.d [blink]
|
|
cmp.eq DBL1L,DBL0L
|
|
.Lcheck_0:
|
|
; high words suggest DBL0 may be -0, DBL1 +0; check low words.
|
|
cmp_s DBL1H,DBL0L
|
|
j_s.d [blink]
|
|
cmp.cc DBL1H,DBL1L
|
|
ENDFUNC(__gedf2)
|