1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
24 */
25 /*
26 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
27 * Use is subject to license terms.
28 */
29
30 #ifdef __RESTRICT
31 #define restrict _Restrict
32 #else
33 #define restrict
34 #endif
35
36 extern void __vexp(int, double *, int, double *, int);
37 extern void __vsincos(int, double *, int, double *, int, double *, int);
38
39 void
__vz_exp(int n,double * restrict x,int stridex,double * restrict y,int stridey,double * restrict tmp)40 __vz_exp(int n, double * restrict x, int stridex, double * restrict y,
41 int stridey, double * restrict tmp)
42 {
43 int i, j;
44
45 stridex <<= 1;
46 stridey <<= 1;
47 __vexp(n, x, stridex, tmp, 1);
48 __vsincos(n, x + 1, stridex, y + 1, stridey, y, stridey);
49 for (i = j = 0; i < n; i++, j += stridey)
50 {
51 y[j] *= tmp[i];
52 y[j+1] *= tmp[i];
53 }
54 }
55