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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 |
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38 static void multsum_f32_unroll2 (float *dest, float *src1, int sstr1, |
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39 float *src2, int sstr2, int n) |
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40 { |
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41 int i; |
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42 double sum1 = 0; |
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43 double sum2 = 0; |
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44 |
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45 for(i=0;i<n-1;i+=2){ |
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46 sum1 += OIL_GET(src1,0, float) * OIL_GET(src2,0, float); |
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47 sum2 += OIL_GET(src1,sstr1, float) * OIL_GET(src2,sstr2, float); |
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48 OIL_INCREMENT (src1, sstr1*2); |
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49 OIL_INCREMENT (src2, sstr2*2); |
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50 } |
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51 if (i<n) { |
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52 sum1 += OIL_GET(src1,0, float) * OIL_GET(src2,0, float); |
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53 } |
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54 |
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55 *dest = sum1 + sum2; |
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56 } |
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57 OIL_DEFINE_IMPL (multsum_f32_unroll2, multsum_f32); |
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58 |
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59 |
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60 static void multsum_f64_unroll8 (double *dest, double *src1, int sstr1, |
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61 double *src2, int sstr2, int n) |
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62 { |
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63 int i = 0; |
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64 double sum = 0; |
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65 |
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66 while(i<n-7) { |
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67 sum += (OIL_GET(src1,0, double) * OIL_GET(src2,0, double)) + |
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68 (OIL_GET(src1,sstr1, double) * OIL_GET(src2,sstr2, double)) + |
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69 (OIL_GET(src1,2*sstr1, double) * OIL_GET(src2,2*sstr2, double)) + |
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70 (OIL_GET(src1,3*sstr1, double) * OIL_GET(src2,3*sstr2, double)) + |
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71 (OIL_GET(src1,4*sstr1, double) * OIL_GET(src2,4*sstr2, double)) + |
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72 (OIL_GET(src1,5*sstr1, double) * OIL_GET(src2,5*sstr2, double)) + |
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73 (OIL_GET(src1,6*sstr1, double) * OIL_GET(src2,6*sstr2, double)) + |
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74 (OIL_GET(src1,7*sstr1, double) * OIL_GET(src2,7*sstr2, double)); |
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75 OIL_INCREMENT (src1, sstr1*8); |
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76 OIL_INCREMENT (src2, sstr2*8); |
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77 i+=8; |
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78 } |
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79 while(i<n-3) { |
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80 sum += (OIL_GET(src1,0, double) * OIL_GET(src2,0, double)) + |
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81 (OIL_GET(src1,sstr1, double) * OIL_GET(src2,sstr2, double)) + |
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82 (OIL_GET(src1,2*sstr1, double) * OIL_GET(src2,2*sstr2, double)) + |
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83 (OIL_GET(src1,3*sstr1, double) * OIL_GET(src2,3*sstr2, double)); |
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84 OIL_INCREMENT (src1, sstr1*4); |
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85 OIL_INCREMENT (src2, sstr2*4); |
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86 i+=4; |
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87 } |
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88 while(i<n-1) { |
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89 sum += (OIL_GET(src1,0, double) * OIL_GET(src2,0, double)) + |
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90 (OIL_GET(src1,sstr1, double) * OIL_GET(src2,sstr2, double)); |
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91 OIL_INCREMENT (src1, sstr1*2); |
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92 OIL_INCREMENT (src2, sstr2*2); |
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93 i+=2; |
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94 } |
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95 if (i<n) { |
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96 sum += OIL_GET(src1,0, double) * OIL_GET(src2,0, double); |
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97 } |
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98 |
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99 *dest = sum; |
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100 } |
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101 OIL_DEFINE_IMPL (multsum_f64_unroll8, multsum_f64); |
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102 |
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103 |
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104 |
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105 #ifdef __SYMBIAN32__ |
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106 |
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107 OilFunctionImpl* __oil_function_impl_multsum_f32_unroll2() { |
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108 return &_oil_function_impl_multsum_f32_unroll2; |
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109 } |
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110 #endif |
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111 |
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112 #ifdef __SYMBIAN32__ |
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113 |
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114 OilFunctionImpl* __oil_function_impl_multsum_f64_unroll8() { |
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115 return &_oil_function_impl_multsum_f64_unroll8; |
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116 } |
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117 #endif |
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118 |