__vz_exp.c revision 25c28e83beb90e7c80452a7c818c5e6f73a07dc8
a688bcbb4bcff5398fdd29b86f83450257dc0df4Allan Foster/*
a688bcbb4bcff5398fdd29b86f83450257dc0df4Allan Foster * CDDL HEADER START
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a688bcbb4bcff5398fdd29b86f83450257dc0df4Allan Foster * Common Development and Distribution License (the "License").
a688bcbb4bcff5398fdd29b86f83450257dc0df4Allan Foster * You may not use this file except in compliance with the License.
a688bcbb4bcff5398fdd29b86f83450257dc0df4Allan Foster *
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a688bcbb4bcff5398fdd29b86f83450257dc0df4Allan Foster * or http://www.opensolaris.org/os/licensing.
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a688bcbb4bcff5398fdd29b86f83450257dc0df4Allan Foster * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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a688bcbb4bcff5398fdd29b86f83450257dc0df4Allan Foster */
a688bcbb4bcff5398fdd29b86f83450257dc0df4Allan Foster
a688bcbb4bcff5398fdd29b86f83450257dc0df4Allan Foster/*
a688bcbb4bcff5398fdd29b86f83450257dc0df4Allan Foster * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
a688bcbb4bcff5398fdd29b86f83450257dc0df4Allan Foster */
a688bcbb4bcff5398fdd29b86f83450257dc0df4Allan Foster/*
a688bcbb4bcff5398fdd29b86f83450257dc0df4Allan Foster * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
a688bcbb4bcff5398fdd29b86f83450257dc0df4Allan Foster * Use is subject to license terms.
a688bcbb4bcff5398fdd29b86f83450257dc0df4Allan Foster */
a688bcbb4bcff5398fdd29b86f83450257dc0df4Allan Foster
a688bcbb4bcff5398fdd29b86f83450257dc0df4Allan Foster#ifdef __RESTRICT
a688bcbb4bcff5398fdd29b86f83450257dc0df4Allan Foster#define restrict _Restrict
a688bcbb4bcff5398fdd29b86f83450257dc0df4Allan Foster#else
a688bcbb4bcff5398fdd29b86f83450257dc0df4Allan Foster#define restrict
a688bcbb4bcff5398fdd29b86f83450257dc0df4Allan Foster#endif
extern void __vexp(int, double *, int, double *, int);
extern void __vsincos(int, double *, int, double *, int, double *, int);
void
__vz_exp(int n, double * restrict x, int stridex, double * restrict y,
int stridey, double * restrict tmp)
{
int i, j;
stridex <<= 1;
stridey <<= 1;
__vexp(n, x, stridex, tmp, 1);
__vsincos(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];
}
}