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/*
* LIBOIL - Library of Optimized Inner Loops
* Copyright (c) 2003,2004 David A. Schleef <ds@schleef.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <liboil/liboilfunction.h>
#include <liboil/simdpack/simdpack.h>
#include <math.h>
/**
* oil_sum_f64:
* @d_1: destination
* @s: source array
* @sstr: stride of source elements
* @n: number of elements
*
* Sums the elements in the source array and places the result in
* @d.
*/
OIL_DEFINE_CLASS (sum_f64, "double *d_1, double *s, int sstr, int n");
//OIL_DEFINE_CLASS (sum_f64_i10, "double *dest, double *src, int sstr, int n");
static void
sum_f64_ref (double *dest, double *src, int sstr, int n)
{
double sum = 0;
double errsum = 0;
double tmp;
int i;
for(i=0;i<n;i++){
tmp = sum;
sum += OIL_GET(src, sstr*i, double);
errsum += (tmp - sum) + OIL_GET(src, sstr*i, double);
}
*dest = sum + errsum;
}
OIL_DEFINE_IMPL_REF (sum_f64_ref, sum_f64);
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