diff options
Diffstat (limited to 'usr/src/lib/libmvec/common/__vc_exp.c')
| -rw-r--r-- | usr/src/lib/libmvec/common/__vc_exp.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/usr/src/lib/libmvec/common/__vc_exp.c b/usr/src/lib/libmvec/common/__vc_exp.c new file mode 100644 index 0000000000..8fc8a77e4e --- /dev/null +++ b/usr/src/lib/libmvec/common/__vc_exp.c @@ -0,0 +1,54 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ + +/* + * Copyright 2011 Nexenta Systems, Inc. All rights reserved. + */ +/* + * Copyright 2006 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifdef __RESTRICT +#define restrict _Restrict +#else +#define restrict +#endif + +extern void __vexpf(int, float *, int, float *, int); +extern void __vsincosf(int, float *, int, float *, int, float *, int); + +void +__vc_exp(int n, float * restrict x, int stridex, float * restrict y, + int stridey, float * restrict tmp) +{ + int i, j; + + stridex <<= 1; + stridey <<= 1; + __vexpf(n, x, stridex, tmp, 1); + __vsincosf(n, x + 1, stridex, y + 1, stridey, y, stridey); + for (i = j = 0; i < n; i++, j += stridey) + { + y[j] *= tmp[i]; + y[j+1] *= tmp[i]; + } +} |