/*

  * 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 multsum_f32_unroll2 (float *dest, float *src1, int sstr1,

     float *src2, int sstr2, int n)

 {

   int i;

   double sum1 = 0;

   double sum2 = 0;

   for(i=0;i<n-1;i+=2){

     sum1 += OIL_GET(src1,0, float) * OIL_GET(src2,0, float);

     sum2 += OIL_GET(src1,sstr1, float) * OIL_GET(src2,sstr2, float);

     OIL_INCREMENT (src1, sstr1*2);

     OIL_INCREMENT (src2, sstr2*2);

   }

   if (i<n) {

     sum1 += OIL_GET(src1,0, float) * OIL_GET(src2,0, float);

   }

   *dest = sum1 + sum2;

 }

 OIL_DEFINE_IMPL (multsum_f32_unroll2, multsum_f32);

 static void multsum_f64_unroll8 (double *dest, double *src1, int sstr1,

     double *src2, int sstr2, int n)

 {

   int i = 0;

   double sum = 0;

   while(i<n-7) {

     sum += (OIL_GET(src1,0, double) * OIL_GET(src2,0, double)) +

            (OIL_GET(src1,sstr1, double) * OIL_GET(src2,sstr2, double)) +

            (OIL_GET(src1,2*sstr1, double) * OIL_GET(src2,2*sstr2, double)) +

            (OIL_GET(src1,3*sstr1, double) * OIL_GET(src2,3*sstr2, double)) +

            (OIL_GET(src1,4*sstr1, double) * OIL_GET(src2,4*sstr2, double)) +

            (OIL_GET(src1,5*sstr1, double) * OIL_GET(src2,5*sstr2, double)) +

            (OIL_GET(src1,6*sstr1, double) * OIL_GET(src2,6*sstr2, double)) +

            (OIL_GET(src1,7*sstr1, double) * OIL_GET(src2,7*sstr2, double));

     OIL_INCREMENT (src1, sstr1*8);

     OIL_INCREMENT (src2, sstr2*8);

     i+=8;

   }

   while(i<n-3) {

     sum += (OIL_GET(src1,0, double) * OIL_GET(src2,0, double)) +

            (OIL_GET(src1,sstr1, double) * OIL_GET(src2,sstr2, double)) +

            (OIL_GET(src1,2*sstr1, double) * OIL_GET(src2,2*sstr2, double)) +

            (OIL_GET(src1,3*sstr1, double) * OIL_GET(src2,3*sstr2, double));

     OIL_INCREMENT (src1, sstr1*4);

     OIL_INCREMENT (src2, sstr2*4);

     i+=4;

   }

   while(i<n-1) {

     sum += (OIL_GET(src1,0, double) * OIL_GET(src2,0, double)) +

            (OIL_GET(src1,sstr1, double) * OIL_GET(src2,sstr2, double));

     OIL_INCREMENT (src1, sstr1*2);

     OIL_INCREMENT (src2, sstr2*2);

     i+=2;

   }

   if (i<n) {

     sum += OIL_GET(src1,0, double) * OIL_GET(src2,0, double);

   }

   *dest = sum;

 }

 OIL_DEFINE_IMPL (multsum_f64_unroll8, multsum_f64);

 #ifdef	__SYMBIAN32__

 OilFunctionImpl* __oil_function_impl_multsum_f32_unroll2() {

 		return &_oil_function_impl_multsum_f32_unroll2;

 }

 #endif

 #ifdef	__SYMBIAN32__

 OilFunctionImpl* __oil_function_impl_multsum_f64_unroll8() {

 		return &_oil_function_impl_multsum_f64_unroll8;

 }

 #endif