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2 | pj | 1 | /* |
2 | * Copyright (c) 1997-1999 Massachusetts Institute of Technology |
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3 | * |
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4 | * This program is free software; you can redistribute it and/or modify |
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5 | * it under the terms of the GNU General Public License as published by |
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6 | * the Free Software Foundation; either version 2 of the License, or |
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7 | * (at your option) any later version. |
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8 | * |
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9 | * This program is distributed in the hope that it will be useful, |
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10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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12 | * GNU General Public License for more details. |
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13 | * |
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14 | * You should have received a copy of the GNU General Public License |
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15 | * along with this program; if not, write to the Free Software |
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16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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17 | * |
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18 | */ |
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19 | |||
20 | /* This file was automatically generated --- DO NOT EDIT */ |
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21 | /* Generated on Tue May 18 13:55:10 EDT 1999 */ |
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22 | |||
23 | #include <ports/fftw-int.h> |
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24 | #include <ports/fftw.h> |
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25 | |||
26 | /* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -hc2real 14 */ |
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27 | |||
28 | /* |
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29 | * This function contains 62 FP additions, 38 FP multiplications, |
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30 | * (or, 60 additions, 36 multiplications, 2 fused multiply/add), |
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31 | * 24 stack variables, and 28 memory accesses |
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32 | */ |
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33 | static const fftw_real K445041867 = FFTW_KONST(+0.445041867912628808577805128993589518932711138); |
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34 | static const fftw_real K1_801937735 = FFTW_KONST(+1.801937735804838252472204639014890102331838324); |
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35 | static const fftw_real K1_246979603 = FFTW_KONST(+1.246979603717467061050009768008479621264549462); |
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36 | static const fftw_real K867767478 = FFTW_KONST(+0.867767478235116240951536665696717509219981456); |
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37 | static const fftw_real K1_949855824 = FFTW_KONST(+1.949855824363647214036263365987862434465571601); |
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38 | static const fftw_real K1_563662964 = FFTW_KONST(+1.563662964936059617416889053348115500464669037); |
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39 | static const fftw_real K2_000000000 = FFTW_KONST(+2.000000000000000000000000000000000000000000000); |
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40 | |||
41 | /* |
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42 | * Generator Id's : |
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43 | * $Id: fcr_14.c,v 1.1.1.1 2002-03-29 14:12:57 pj Exp $ |
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44 | * $Id: fcr_14.c,v 1.1.1.1 2002-03-29 14:12:57 pj Exp $ |
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45 | * $Id: fcr_14.c,v 1.1.1.1 2002-03-29 14:12:57 pj Exp $ |
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46 | */ |
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47 | |||
48 | void fftw_hc2real_14(const fftw_real *real_input, const fftw_real *imag_input, fftw_real *output, int real_istride, int imag_istride, int ostride) |
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49 | { |
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50 | fftw_real tmp3; |
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51 | fftw_real tmp13; |
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52 | fftw_real tmp6; |
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53 | fftw_real tmp14; |
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54 | fftw_real tmp26; |
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55 | fftw_real tmp35; |
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56 | fftw_real tmp23; |
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57 | fftw_real tmp34; |
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58 | fftw_real tmp12; |
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59 | fftw_real tmp16; |
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60 | fftw_real tmp20; |
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61 | fftw_real tmp33; |
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62 | fftw_real tmp9; |
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63 | fftw_real tmp15; |
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64 | fftw_real tmp1; |
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65 | fftw_real tmp2; |
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66 | ASSERT_ALIGNED_DOUBLE(); |
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67 | tmp1 = real_input[0]; |
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68 | tmp2 = real_input[7 * real_istride]; |
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69 | tmp3 = tmp1 - tmp2; |
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70 | tmp13 = tmp1 + tmp2; |
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71 | { |
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72 | fftw_real tmp4; |
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73 | fftw_real tmp5; |
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74 | fftw_real tmp24; |
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75 | fftw_real tmp25; |
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76 | ASSERT_ALIGNED_DOUBLE(); |
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77 | tmp4 = real_input[2 * real_istride]; |
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78 | tmp5 = real_input[5 * real_istride]; |
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79 | tmp6 = tmp4 - tmp5; |
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80 | tmp14 = tmp4 + tmp5; |
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81 | tmp24 = imag_input[2 * imag_istride]; |
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82 | tmp25 = imag_input[5 * imag_istride]; |
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83 | tmp26 = tmp24 - tmp25; |
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84 | tmp35 = tmp24 + tmp25; |
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85 | } |
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86 | { |
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87 | fftw_real tmp21; |
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88 | fftw_real tmp22; |
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89 | fftw_real tmp10; |
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90 | fftw_real tmp11; |
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91 | ASSERT_ALIGNED_DOUBLE(); |
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92 | tmp21 = imag_input[6 * imag_istride]; |
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93 | tmp22 = imag_input[imag_istride]; |
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94 | tmp23 = tmp21 - tmp22; |
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95 | tmp34 = tmp21 + tmp22; |
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96 | tmp10 = real_input[6 * real_istride]; |
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97 | tmp11 = real_input[real_istride]; |
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98 | tmp12 = tmp10 - tmp11; |
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99 | tmp16 = tmp10 + tmp11; |
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100 | } |
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101 | { |
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102 | fftw_real tmp18; |
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103 | fftw_real tmp19; |
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104 | fftw_real tmp7; |
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105 | fftw_real tmp8; |
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106 | ASSERT_ALIGNED_DOUBLE(); |
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107 | tmp18 = imag_input[4 * imag_istride]; |
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108 | tmp19 = imag_input[3 * imag_istride]; |
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109 | tmp20 = tmp18 - tmp19; |
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110 | tmp33 = tmp18 + tmp19; |
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111 | tmp7 = real_input[4 * real_istride]; |
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112 | tmp8 = real_input[3 * real_istride]; |
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113 | tmp9 = tmp7 - tmp8; |
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114 | tmp15 = tmp7 + tmp8; |
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115 | } |
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116 | { |
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117 | fftw_real tmp38; |
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118 | fftw_real tmp37; |
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119 | fftw_real tmp29; |
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120 | fftw_real tmp28; |
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121 | ASSERT_ALIGNED_DOUBLE(); |
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122 | output[7 * ostride] = tmp3 + (K2_000000000 * (tmp6 + tmp9 + tmp12)); |
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123 | tmp38 = (K1_563662964 * tmp35) + (K1_949855824 * tmp33) + (K867767478 * tmp34); |
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124 | tmp37 = tmp3 + (K1_246979603 * tmp6) - (K1_801937735 * tmp12) - (K445041867 * tmp9); |
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125 | output[ostride] = tmp37 - tmp38; |
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126 | output[13 * ostride] = tmp37 + tmp38; |
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127 | { |
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128 | fftw_real tmp40; |
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129 | fftw_real tmp39; |
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130 | fftw_real tmp36; |
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131 | fftw_real tmp32; |
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132 | ASSERT_ALIGNED_DOUBLE(); |
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133 | tmp40 = (K867767478 * tmp33) + (K1_563662964 * tmp34) - (K1_949855824 * tmp35); |
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134 | tmp39 = tmp3 + (K1_246979603 * tmp12) - (K1_801937735 * tmp9) - (K445041867 * tmp6); |
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135 | output[5 * ostride] = tmp39 - tmp40; |
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136 | output[9 * ostride] = tmp39 + tmp40; |
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137 | tmp36 = (K1_563662964 * tmp33) - (K1_949855824 * tmp34) - (K867767478 * tmp35); |
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138 | tmp32 = tmp3 + (K1_246979603 * tmp9) - (K445041867 * tmp12) - (K1_801937735 * tmp6); |
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139 | output[11 * ostride] = tmp32 - tmp36; |
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140 | output[3 * ostride] = tmp32 + tmp36; |
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141 | } |
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142 | output[0] = tmp13 + (K2_000000000 * (tmp14 + tmp15 + tmp16)); |
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143 | tmp29 = (K867767478 * tmp20) + (K1_563662964 * tmp23) - (K1_949855824 * tmp26); |
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144 | tmp28 = tmp13 + (K1_246979603 * tmp16) - (K1_801937735 * tmp15) - (K445041867 * tmp14); |
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145 | output[12 * ostride] = tmp28 - tmp29; |
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146 | output[2 * ostride] = tmp28 + tmp29; |
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147 | { |
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148 | fftw_real tmp31; |
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149 | fftw_real tmp30; |
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150 | fftw_real tmp27; |
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151 | fftw_real tmp17; |
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152 | ASSERT_ALIGNED_DOUBLE(); |
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153 | tmp31 = (K1_563662964 * tmp26) + (K1_949855824 * tmp20) + (K867767478 * tmp23); |
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154 | tmp30 = tmp13 + (K1_246979603 * tmp14) - (K1_801937735 * tmp16) - (K445041867 * tmp15); |
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155 | output[8 * ostride] = tmp30 - tmp31; |
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156 | output[6 * ostride] = tmp30 + tmp31; |
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157 | tmp27 = (K1_563662964 * tmp20) - (K1_949855824 * tmp23) - (K867767478 * tmp26); |
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158 | tmp17 = tmp13 + (K1_246979603 * tmp15) - (K445041867 * tmp16) - (K1_801937735 * tmp14); |
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159 | output[4 * ostride] = tmp17 - tmp27; |
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160 | output[10 * ostride] = tmp17 + tmp27; |
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161 | } |
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162 | } |
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163 | } |
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164 | |||
165 | fftw_codelet_desc fftw_hc2real_14_desc = |
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166 | { |
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167 | "fftw_hc2real_14", |
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168 | (void (*)()) fftw_hc2real_14, |
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169 | 14, |
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170 | FFTW_BACKWARD, |
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171 | FFTW_HC2REAL, |
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172 | 323, |
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173 | 0, |
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174 | (const int *) 0, |
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175 | }; |