os/ossrv/genericopenlibs/liboil/src/simdpack/sum_f64.c
author sl
Tue, 10 Jun 2014 14:32:02 +0200
changeset 1 260cb5ec6c19
permissions -rw-r--r--
Update contrib.
     1 /*
     2  * LIBOIL - Library of Optimized Inner Loops
     3  * Copyright (c) 2003,2004 David A. Schleef <ds@schleef.org>
     4  * All rights reserved.
     5  *
     6  * Redistribution and use in source and binary forms, with or without
     7  * modification, are permitted provided that the following conditions
     8  * are met:
     9  * 1. Redistributions of source code must retain the above copyright
    10  *    notice, this list of conditions and the following disclaimer.
    11  * 2. Redistributions in binary form must reproduce the above copyright
    12  *    notice, this list of conditions and the following disclaimer in the
    13  *    documentation and/or other materials provided with the distribution.
    14  * 
    15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
    16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
    17  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
    19  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
    20  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
    21  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
    22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
    23  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
    24  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    25  * POSSIBILITY OF SUCH DAMAGE.
    26  */
    27 //Portions Copyright (c)  2008-2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. 
    28 
    29 #ifdef HAVE_CONFIG_H
    30 #include "config.h"
    31 #endif
    32 
    33 #include <liboil/liboilfunction.h>
    34 #include "liboil/simdpack/simdpack.h"
    35 #include <math.h>
    36 
    37 static void
    38 sum_f64_i10_simple (double *dest, double *src, int sstr, int n)
    39 {
    40 	double sum = 0;
    41 	int i;
    42 
    43 	for(i=0;i<n;i++){
    44 		sum += OIL_GET(src, sstr*i, double);
    45 	}
    46 
    47 	*dest = sum;
    48 }
    49 OIL_DEFINE_IMPL (sum_f64_i10_simple, sum_f64);
    50 
    51 static void
    52 sum_f64_i10_unroll4 (double *dest, double *src, int sstr, int n)
    53 {
    54 	double sum1 = 0;
    55 	double sum2 = 0;
    56 	double sum3 = 0;
    57 	double sum4 = 0;
    58 	int i;
    59 
    60 	while (n&3) {
    61 		sum1 += *src;
    62 		OIL_INCREMENT (src, sstr);
    63 		n--;
    64 	}
    65 	for(i=0;i<n;i+=4){
    66 		sum1 += OIL_GET(src, sstr*i, double);
    67 		sum2 += OIL_GET(src, sstr*(i+1), double);
    68 		sum3 += OIL_GET(src, sstr*(i+2), double);
    69 		sum4 += OIL_GET(src, sstr*(i+3), double);
    70 	}
    71 
    72 	*dest = sum1 + sum2 + sum3 + sum4;
    73 }
    74 OIL_DEFINE_IMPL (sum_f64_i10_unroll4, sum_f64);
    75 
    76 
    77 
    78 
    79 #ifdef	__SYMBIAN32__
    80  
    81 OilFunctionImpl* __oil_function_impl_sum_f64_i10_simple() {
    82 		return &_oil_function_impl_sum_f64_i10_simple;
    83 }
    84 #endif
    85 
    86 #ifdef	__SYMBIAN32__
    87  
    88 OilFunctionImpl* __oil_function_impl_sum_f64_i10_unroll4() {
    89 		return &_oil_function_impl_sum_f64_i10_unroll4;
    90 }
    91 #endif
    92