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5261 libm should stop using synonyms.h
5298 fabs is 0-sized, confuses dis(1) and others
Reviewed by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
Approved by: Gordon Ross <gwr@nexenta.com>
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--- old/usr/src/lib/libm/i386/src/isnanf.s
+++ new/usr/src/lib/libm/i386/src/isnanf.s
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 15 * If applicable, add the following below this CDDL HEADER, with the
16 16 * fields enclosed by brackets "[]" replaced with your own identifying
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21 /*
22 22 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
23 23 */
24 24 /*
25 25 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
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25 lines elided |
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26 26 * Use is subject to license terms.
27 27 */
28 28
29 29 .file "isnanf.s"
30 30
31 31 #include "libm.h"
32 32 LIBM_ANSI_PRAGMA_WEAK(isnanf,function)
33 33 .weak _isnanf
34 34 .type _isnanf,@function
35 35 _isnanf = __isnanf
36 -#include "libm_synonyms.h"
37 36
38 37 ENTRY(isnanf)
39 38 movl 4(%esp),%eax / eax <-- x
40 39 andl $0x7fffffff,%eax / eax <-- abs(x)
41 40 subl $0x7f800000,%eax / ZF <-- 1 iff x is infinite
42 41 jae .nan_or_inf / no jump iff arg. is finite
43 42 movl $0,%eax
44 43 ret
45 44 .nan_or_inf:
46 45 jnz .got_nan / no jump if arg. infinite;
47 46 / let nan waste time
48 47 ret / %eax = 0 here
49 48 .got_nan:
50 49 movl $1,%eax / %eax was 0, must be made 1 to
51 50 / indicate TRUE
52 51 ret
53 52 .align 4
54 53 SET_SIZE(isnanf)
55 54
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