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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 13:55:07 EDT 1999 */ |
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22 | |||
107 | pj | 23 | #include <fftw-int.h> |
24 | #include <fftw.h> |
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2 | pj | 25 | |
26 | /* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -hc2real 12 */ |
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27 | |||
28 | /* |
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29 | * This function contains 38 FP additions, 10 FP multiplications, |
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30 | * (or, 34 additions, 6 multiplications, 4 fused multiply/add), |
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31 | * 22 stack variables, and 24 memory accesses |
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32 | */ |
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33 | static const fftw_real K1_732050807 = FFTW_KONST(+1.732050807568877293527446341505872366942805254); |
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34 | static const fftw_real K2_000000000 = FFTW_KONST(+2.000000000000000000000000000000000000000000000); |
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35 | |||
36 | /* |
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37 | * Generator Id's : |
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107 | pj | 38 | * $Id: fcr_12.c,v 1.2 2003-03-24 11:14:55 pj Exp $ |
39 | * $Id: fcr_12.c,v 1.2 2003-03-24 11:14:55 pj Exp $ |
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40 | * $Id: fcr_12.c,v 1.2 2003-03-24 11:14:55 pj Exp $ |
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2 | pj | 41 | */ |
42 | |||
43 | void fftw_hc2real_12(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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44 | { |
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45 | fftw_real tmp8; |
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46 | fftw_real tmp11; |
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47 | fftw_real tmp22; |
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48 | fftw_real tmp36; |
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49 | fftw_real tmp32; |
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50 | fftw_real tmp33; |
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51 | fftw_real tmp25; |
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52 | fftw_real tmp37; |
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53 | fftw_real tmp3; |
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54 | fftw_real tmp27; |
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55 | fftw_real tmp16; |
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56 | fftw_real tmp6; |
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57 | fftw_real tmp28; |
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58 | fftw_real tmp20; |
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59 | ASSERT_ALIGNED_DOUBLE(); |
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60 | { |
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61 | fftw_real tmp9; |
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62 | fftw_real tmp10; |
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63 | fftw_real tmp23; |
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64 | fftw_real tmp24; |
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65 | ASSERT_ALIGNED_DOUBLE(); |
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66 | tmp8 = real_input[3 * real_istride]; |
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67 | tmp9 = real_input[5 * real_istride]; |
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68 | tmp10 = real_input[real_istride]; |
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69 | tmp11 = tmp9 + tmp10; |
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70 | tmp22 = (K2_000000000 * tmp8) - tmp11; |
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71 | tmp36 = K1_732050807 * (tmp9 - tmp10); |
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72 | tmp32 = imag_input[3 * imag_istride]; |
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73 | tmp23 = imag_input[5 * imag_istride]; |
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74 | tmp24 = imag_input[imag_istride]; |
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75 | tmp33 = tmp23 + tmp24; |
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76 | tmp25 = K1_732050807 * (tmp23 - tmp24); |
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77 | tmp37 = (K2_000000000 * tmp32) + tmp33; |
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78 | } |
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79 | { |
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80 | fftw_real tmp15; |
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81 | fftw_real tmp1; |
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82 | fftw_real tmp2; |
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83 | fftw_real tmp13; |
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84 | fftw_real tmp14; |
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85 | ASSERT_ALIGNED_DOUBLE(); |
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86 | tmp14 = imag_input[4 * imag_istride]; |
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87 | tmp15 = K1_732050807 * tmp14; |
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88 | tmp1 = real_input[0]; |
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89 | tmp2 = real_input[4 * real_istride]; |
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90 | tmp13 = tmp1 - tmp2; |
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91 | tmp3 = tmp1 + (K2_000000000 * tmp2); |
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92 | tmp27 = tmp13 - tmp15; |
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93 | tmp16 = tmp13 + tmp15; |
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94 | } |
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95 | { |
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96 | fftw_real tmp19; |
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97 | fftw_real tmp4; |
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98 | fftw_real tmp5; |
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99 | fftw_real tmp17; |
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100 | fftw_real tmp18; |
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101 | ASSERT_ALIGNED_DOUBLE(); |
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102 | tmp18 = imag_input[2 * imag_istride]; |
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103 | tmp19 = K1_732050807 * tmp18; |
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104 | tmp4 = real_input[6 * real_istride]; |
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105 | tmp5 = real_input[2 * real_istride]; |
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106 | tmp17 = tmp4 - tmp5; |
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107 | tmp6 = tmp4 + (K2_000000000 * tmp5); |
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108 | tmp28 = tmp17 + tmp19; |
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109 | tmp20 = tmp17 - tmp19; |
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110 | } |
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111 | { |
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112 | fftw_real tmp7; |
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113 | fftw_real tmp12; |
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114 | fftw_real tmp39; |
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115 | fftw_real tmp40; |
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116 | ASSERT_ALIGNED_DOUBLE(); |
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117 | tmp7 = tmp3 + tmp6; |
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118 | tmp12 = K2_000000000 * (tmp8 + tmp11); |
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119 | output[6 * ostride] = tmp7 - tmp12; |
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120 | output[0] = tmp7 + tmp12; |
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121 | { |
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122 | fftw_real tmp31; |
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123 | fftw_real tmp34; |
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124 | fftw_real tmp21; |
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125 | fftw_real tmp26; |
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126 | ASSERT_ALIGNED_DOUBLE(); |
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127 | tmp31 = tmp3 - tmp6; |
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128 | tmp34 = K2_000000000 * (tmp32 - tmp33); |
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129 | output[9 * ostride] = tmp31 - tmp34; |
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130 | output[3 * ostride] = tmp31 + tmp34; |
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131 | tmp21 = tmp16 + tmp20; |
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132 | tmp26 = tmp22 - tmp25; |
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133 | output[2 * ostride] = tmp21 - tmp26; |
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134 | output[8 * ostride] = tmp21 + tmp26; |
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135 | } |
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136 | tmp39 = tmp16 - tmp20; |
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137 | tmp40 = tmp37 - tmp36; |
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138 | output[5 * ostride] = tmp39 - tmp40; |
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139 | output[11 * ostride] = tmp39 + tmp40; |
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140 | { |
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141 | fftw_real tmp35; |
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142 | fftw_real tmp38; |
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143 | fftw_real tmp29; |
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144 | fftw_real tmp30; |
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145 | ASSERT_ALIGNED_DOUBLE(); |
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146 | tmp35 = tmp27 - tmp28; |
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147 | tmp38 = tmp36 + tmp37; |
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148 | output[ostride] = tmp35 - tmp38; |
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149 | output[7 * ostride] = tmp35 + tmp38; |
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150 | tmp29 = tmp27 + tmp28; |
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151 | tmp30 = tmp22 + tmp25; |
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152 | output[10 * ostride] = tmp29 - tmp30; |
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153 | output[4 * ostride] = tmp29 + tmp30; |
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154 | } |
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155 | } |
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156 | } |
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157 | |||
158 | fftw_codelet_desc fftw_hc2real_12_desc = |
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159 | { |
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160 | "fftw_hc2real_12", |
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161 | (void (*)()) fftw_hc2real_12, |
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162 | 12, |
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163 | FFTW_BACKWARD, |
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164 | FFTW_HC2REAL, |
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165 | 279, |
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166 | 0, |
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167 | (const int *) 0, |
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168 | }; |