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path: root/libgcc/config/epiphany/ieee-754/eqsf2.S
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/* Copyright (C) 2008, 2009 Free Software Foundation, Inc.
   Contributed by Embecosm on behalf of Adapteva, 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 "../epiphany-asm.h"

	/* Assumption: NaNs have all bits 10..30 and one of bit 0..9 set.  */

	FSTAB (__eqsf2,T_INT)
	.global SYM(__eqsf2)
	.balign 4
	HIDDEN_FUNC(__eqsf2)
SYM(__eqsf2):
	sub	TMP0,r0,r1
	beq	.Lno_bdiff
	orr	TMP0,r0,r1
	add	TMP0,TMP0,TMP0
	rts
.Lno_bdiff:
#ifndef FLOAT_FORMAT_MOTOROLA
	mov	TMP0,0xffff
	movt	TMP0,0x7f
	add	TMP0,TMP0,r0
#else
	add	TMP0,r0,0x3ff
#endif
	eor	TMP0,TMP0,r0
	lsr	TMP0,TMP0,31
	rts
	ENDFUNC(__eqsf2)