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