/*

 * 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.

 */

//Portions Copyright (c)  2008-2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. 

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

#include <liboil/liboilfunction.h>

#include "liboil/simdpack/simdpack.h"

#include <math.h>

static void

squaresum_f64_i10_simple(double *dest, double *src, int n)

{

	double sum2 = 0;

	int i;

	for(i=0;i<n;i++){

		sum2 += src[i]*src[i];

	}

	*dest = sum2;

}

OIL_DEFINE_IMPL (squaresum_f64_i10_simple, squaresum_f64);

#if 0

#include <multsum_f64.h>

static void

squaresum_f64_i10_multsum(double *dest, double *src, int n)

{

	multsum_f64(dest,src,src,n);

}

#endif

static void

squaresum_f64_i10_unroll4a(double *dest, double *src, int n)

{

	double sum1 = 0;

	double sum2 = 0;

	double sum3 = 0;

	double sum4 = 0;

	while(n&0x3){

		sum1 += *src * *src;

		src++;

		n--;

	}

	while(n>0){

		sum1 += *src * *src;

		src++;

		sum2 += *src * *src;

		src++;

		sum3 += *src * *src;

		src++;

		sum4 += *src * *src;

		src++;

		n-=4;

	}

	*dest = sum1 + sum2 + sum3 + sum4;

}

OIL_DEFINE_IMPL (squaresum_f64_i10_unroll4a, squaresum_f64);

static void

squaresum_f64_i10_unroll4(double *dest, double *src, int n)

{

	double sum1 = 0;

	double sum2 = 0;

	double sum3 = 0;

	double sum4 = 0;

	int i;

	while(n&0x3){

		sum1 += src[0]*src[0];

		src++;

		n--;

	}

	for(i=0;i<n;i+=4){

		sum1 += src[i]*src[i];

		sum2 += src[i+1]*src[i+1];

		sum3 += src[i+2]*src[i+2];

		sum4 += src[i+3]*src[i+3];

	}

	*dest = sum1 + sum2 + sum3 + sum4;

}

OIL_DEFINE_IMPL (squaresum_f64_i10_unroll4, squaresum_f64);

static void

squaresum_f64_i10_unroll8(double *dest, double *src, int n)

{

	double sum1 = 0;

	double sum2 = 0;

	double sum3 = 0;

	double sum4 = 0;

	double sum5 = 0;

	double sum6 = 0;

	double sum7 = 0;

	double sum8 = 0;

	int i;

	while(n&0x7){

		sum1 += src[0]*src[0];

		src++;

		n--;

	}

	for(i=0;i<n;i+=8){

		sum1 += src[i]*src[i];

		sum2 += src[i+1]*src[i+1];

		sum3 += src[i+2]*src[i+2];

		sum4 += src[i+3]*src[i+3];

		sum5 += src[i+4]*src[i+4];

		sum6 += src[i+5]*src[i+5];

		sum7 += src[i+6]*src[i+6];

		sum8 += src[i+7]*src[i+7];

	}

	*dest = sum1 + sum2 + sum3 + sum4 + sum5 + sum6 + sum7 + sum8;

}

OIL_DEFINE_IMPL (squaresum_f64_i10_unroll8, squaresum_f64);

#ifdef	__SYMBIAN32__

OilFunctionImpl* __oil_function_impl_squaresum_f64_i10_simple() {

		return &_oil_function_impl_squaresum_f64_i10_simple;

}

#endif

#ifdef	__SYMBIAN32__

OilFunctionImpl* __oil_function_impl_squaresum_f64_i10_unroll4a() {

		return &_oil_function_impl_squaresum_f64_i10_unroll4a;

}

#endif

#ifdef	__SYMBIAN32__

OilFunctionImpl* __oil_function_impl_squaresum_f64_i10_unroll4() {

		return &_oil_function_impl_squaresum_f64_i10_unroll4;

}

#endif

#ifdef	__SYMBIAN32__

OilFunctionImpl* __oil_function_impl_squaresum_f64_i10_unroll8() {

		return &_oil_function_impl_squaresum_f64_i10_unroll8;

}

#endif