1*84d9c625SLionel Sambuc /*-
2*84d9c625SLionel Sambuc * Copyright (c) 2013 The NetBSD Foundation, Inc.
3*84d9c625SLionel Sambuc * All rights reserved.
4*84d9c625SLionel Sambuc *
5*84d9c625SLionel Sambuc * This code is derived from software contributed to The NetBSD Foundation
6*84d9c625SLionel Sambuc * by Matt Thomas of 3am Software Foundry.
7*84d9c625SLionel Sambuc *
8*84d9c625SLionel Sambuc * Redistribution and use in source and binary forms, with or without
9*84d9c625SLionel Sambuc * modification, are permitted provided that the following conditions
10*84d9c625SLionel Sambuc * are met:
11*84d9c625SLionel Sambuc * 1. Redistributions of source code must retain the above copyright
12*84d9c625SLionel Sambuc * notice, this list of conditions and the following disclaimer.
13*84d9c625SLionel Sambuc * 2. Redistributions in binary form must reproduce the above copyright
14*84d9c625SLionel Sambuc * notice, this list of conditions and the following disclaimer in the
15*84d9c625SLionel Sambuc * documentation and/or other materials provided with the distribution.
16*84d9c625SLionel Sambuc *
17*84d9c625SLionel Sambuc * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
18*84d9c625SLionel Sambuc * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
19*84d9c625SLionel Sambuc * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20*84d9c625SLionel Sambuc * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
21*84d9c625SLionel Sambuc * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22*84d9c625SLionel Sambuc * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23*84d9c625SLionel Sambuc * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24*84d9c625SLionel Sambuc * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25*84d9c625SLionel Sambuc * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26*84d9c625SLionel Sambuc * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27*84d9c625SLionel Sambuc * POSSIBILITY OF SUCH DAMAGE.
28*84d9c625SLionel Sambuc */
29*84d9c625SLionel Sambuc
30*84d9c625SLionel Sambuc #include <sys/cdefs.h>
31*84d9c625SLionel Sambuc #if defined(LIBC_SCCS) && !defined(lint)
32*84d9c625SLionel Sambuc __RCSID("$NetBSD: __aeabi_fcmpun.c,v 1.1 2013/01/26 07:04:22 matt Exp $");
33*84d9c625SLionel Sambuc #endif /* LIBC_SCCS and not lint */
34*84d9c625SLionel Sambuc
35*84d9c625SLionel Sambuc #include <arm/aeabi.h>
36*84d9c625SLionel Sambuc #include <arm/ieee.h>
37*84d9c625SLionel Sambuc
38*84d9c625SLionel Sambuc #include <math.h>
39*84d9c625SLionel Sambuc
40*84d9c625SLionel Sambuc /*
41*84d9c625SLionel Sambuc * result (1, 0) denotes (?, <=>) [2], use for C99 isunordered()
42*84d9c625SLionel Sambuc */
43*84d9c625SLionel Sambuc
44*84d9c625SLionel Sambuc int
__aeabi_fcmpun(float x,float y)45*84d9c625SLionel Sambuc __aeabi_fcmpun(float x, float y)
46*84d9c625SLionel Sambuc {
47*84d9c625SLionel Sambuc const union ieee_single_u ux = { .sngu_f = x };
48*84d9c625SLionel Sambuc const union ieee_single_u uy = { .sngu_f = y };
49*84d9c625SLionel Sambuc
50*84d9c625SLionel Sambuc return (ux.sngu_sng.sng_exp == SNG_EXP_INFNAN
51*84d9c625SLionel Sambuc && ux.sngu_sng.sng_frac != 0)
52*84d9c625SLionel Sambuc || (uy.sngu_sng.sng_exp == SNG_EXP_INFNAN
53*84d9c625SLionel Sambuc && uy.sngu_sng.sng_frac != 0);
54*84d9c625SLionel Sambuc }
55