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/* Copyright (C) 2008-2013 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: r0, r1
output: z flag
clobber: r12, flags
For NaNs, bit 22 .. bit 30 must be set. */
#if 0 /* DEBUG */
.global __eqsf2
.balign 4
FUNC(__eqsf2)
__eqsf2:
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 __eqsf2_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 __eqsf2_asm` ld.ab r10,[sp,4]
pop_s blink
breq.d r11,0,0f
ld.ab r11,[sp,4]
jne_s [blink]
bl abort
0: jeq_s [blink]
bl abort
ENDFUNC(__eqsf2)
#define __eqsf2 __eqsf2_asm
#endif /* DEBUG */
/* Good performance as long as the binary difference is
well predictable (as seen from the branch predictor). */
.global __eqsf2
.balign 4
HIDDEN_FUNC(__eqsf2)
__eqsf2:
breq r0, r1,.Lno_bdiff
or r12,r0,r1
j_s.d [blink]
bmsk.f 0,r12,30
.Lno_bdiff:
bmsk r12,r0,23
add1.f r12,r12,r0 /* set c iff NaN; also, clear z if NaN. */
j_s.d [blink]
cmp.cc r0,r1
ENDFUNC(__eqsf2)
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