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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 13:56:05 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 -hc2hc-backward 9 */ |
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27 | |||
28 | /* |
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29 | * This function contains 181 FP additions, 120 FP multiplications, |
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30 | * (or, 129 additions, 68 multiplications, 52 fused multiply/add), |
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31 | * 43 stack variables, and 72 memory accesses |
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32 | */ |
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33 | static const fftw_real K663413948 = FFTW_KONST(+0.663413948168938396205421319635891297216863310); |
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34 | static const fftw_real K556670399 = FFTW_KONST(+0.556670399226419366452912952047023132968291906); |
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35 | static const fftw_real K852868531 = FFTW_KONST(+0.852868531952443209628250963940074071936020296); |
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36 | static const fftw_real K296198132 = FFTW_KONST(+0.296198132726023843175338011893050938967728390); |
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37 | static const fftw_real K150383733 = FFTW_KONST(+0.150383733180435296639271897612501926072238258); |
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38 | static const fftw_real K813797681 = FFTW_KONST(+0.813797681349373692844693217248393223289101568); |
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39 | static const fftw_real K939692620 = FFTW_KONST(+0.939692620785908384054109277324731469936208134); |
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40 | static const fftw_real K342020143 = FFTW_KONST(+0.342020143325668733044099614682259580763083368); |
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41 | static const fftw_real K984807753 = FFTW_KONST(+0.984807753012208059366743024589523013670643252); |
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42 | static const fftw_real K173648177 = FFTW_KONST(+0.173648177666930348851716626769314796000375677); |
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43 | static const fftw_real K300767466 = FFTW_KONST(+0.300767466360870593278543795225003852144476517); |
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44 | static const fftw_real K1_705737063 = FFTW_KONST(+1.705737063904886419256501927880148143872040591); |
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45 | static const fftw_real K642787609 = FFTW_KONST(+0.642787609686539326322643409907263432907559884); |
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46 | static const fftw_real K766044443 = FFTW_KONST(+0.766044443118978035202392650555416673935832457); |
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47 | static const fftw_real K1_326827896 = FFTW_KONST(+1.326827896337876792410842639271782594433726619); |
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48 | static const fftw_real K1_113340798 = FFTW_KONST(+1.113340798452838732905825904094046265936583811); |
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49 | static const fftw_real K500000000 = FFTW_KONST(+0.500000000000000000000000000000000000000000000); |
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50 | static const fftw_real K866025403 = FFTW_KONST(+0.866025403784438646763723170752936183471402627); |
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51 | static const fftw_real K2_000000000 = FFTW_KONST(+2.000000000000000000000000000000000000000000000); |
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52 | static const fftw_real K1_732050807 = FFTW_KONST(+1.732050807568877293527446341505872366942805254); |
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53 | |||
54 | /* |
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55 | * Generator Id's : |
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107 | pj | 56 | * $Id: fhb_9.c,v 1.2 2003-03-24 11:14:57 pj Exp $ |
57 | * $Id: fhb_9.c,v 1.2 2003-03-24 11:14:57 pj Exp $ |
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58 | * $Id: fhb_9.c,v 1.2 2003-03-24 11:14:57 pj Exp $ |
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2 | pj | 59 | */ |
60 | |||
61 | void fftw_hc2hc_backward_9(fftw_real *A, const fftw_complex *W, int iostride, int m, int dist) |
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62 | { |
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63 | int i; |
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64 | fftw_real *X; |
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65 | fftw_real *Y; |
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66 | X = A; |
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67 | Y = A + (9 * iostride); |
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68 | { |
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69 | fftw_real tmp155; |
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70 | fftw_real tmp183; |
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71 | fftw_real tmp177; |
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72 | fftw_real tmp162; |
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73 | fftw_real tmp165; |
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74 | fftw_real tmp160; |
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75 | fftw_real tmp169; |
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76 | fftw_real tmp180; |
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77 | fftw_real tmp172; |
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78 | fftw_real tmp181; |
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79 | fftw_real tmp161; |
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80 | fftw_real tmp166; |
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81 | ASSERT_ALIGNED_DOUBLE(); |
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82 | { |
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83 | fftw_real tmp176; |
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84 | fftw_real tmp153; |
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85 | fftw_real tmp154; |
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86 | fftw_real tmp174; |
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87 | fftw_real tmp175; |
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88 | ASSERT_ALIGNED_DOUBLE(); |
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89 | tmp175 = Y[-3 * iostride]; |
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90 | tmp176 = K1_732050807 * tmp175; |
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91 | tmp153 = X[0]; |
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92 | tmp154 = X[3 * iostride]; |
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93 | tmp174 = tmp154 - tmp153; |
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94 | tmp155 = tmp153 + (K2_000000000 * tmp154); |
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95 | tmp183 = tmp176 - tmp174; |
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96 | tmp177 = tmp174 + tmp176; |
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97 | } |
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98 | { |
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99 | fftw_real tmp156; |
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100 | fftw_real tmp159; |
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101 | fftw_real tmp170; |
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102 | fftw_real tmp168; |
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103 | fftw_real tmp167; |
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104 | fftw_real tmp171; |
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105 | ASSERT_ALIGNED_DOUBLE(); |
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106 | tmp156 = X[iostride]; |
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107 | tmp162 = Y[-iostride]; |
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108 | { |
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109 | fftw_real tmp157; |
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110 | fftw_real tmp158; |
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111 | fftw_real tmp163; |
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112 | fftw_real tmp164; |
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113 | ASSERT_ALIGNED_DOUBLE(); |
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114 | tmp157 = X[4 * iostride]; |
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115 | tmp158 = X[2 * iostride]; |
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116 | tmp159 = tmp157 + tmp158; |
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117 | tmp170 = K866025403 * (tmp157 - tmp158); |
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118 | tmp163 = Y[-2 * iostride]; |
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119 | tmp164 = Y[-4 * iostride]; |
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120 | tmp165 = tmp163 - tmp164; |
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121 | tmp168 = K866025403 * (tmp164 + tmp163); |
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122 | } |
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123 | tmp160 = tmp156 + tmp159; |
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124 | tmp167 = tmp156 - (K500000000 * tmp159); |
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125 | tmp169 = tmp167 - tmp168; |
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126 | tmp180 = tmp167 + tmp168; |
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127 | tmp171 = (K500000000 * tmp165) + tmp162; |
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128 | tmp172 = tmp170 + tmp171; |
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129 | tmp181 = tmp171 - tmp170; |
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130 | } |
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131 | X[0] = tmp155 + (K2_000000000 * tmp160); |
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132 | tmp161 = tmp155 - tmp160; |
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133 | tmp166 = K1_732050807 * (tmp162 - tmp165); |
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134 | X[6 * iostride] = tmp161 + tmp166; |
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135 | X[3 * iostride] = tmp161 - tmp166; |
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136 | { |
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137 | fftw_real tmp178; |
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138 | fftw_real tmp173; |
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139 | fftw_real tmp179; |
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140 | fftw_real tmp185; |
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141 | fftw_real tmp182; |
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142 | fftw_real tmp184; |
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143 | ASSERT_ALIGNED_DOUBLE(); |
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144 | tmp178 = (K1_113340798 * tmp169) + (K1_326827896 * tmp172); |
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145 | tmp173 = (K766044443 * tmp169) - (K642787609 * tmp172); |
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146 | tmp179 = tmp173 + tmp177; |
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147 | X[iostride] = (K2_000000000 * tmp173) - tmp177; |
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148 | X[7 * iostride] = tmp178 - tmp179; |
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149 | X[4 * iostride] = -(tmp178 + tmp179); |
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150 | tmp185 = (K1_705737063 * tmp180) + (K300767466 * tmp181); |
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151 | tmp182 = (K173648177 * tmp180) - (K984807753 * tmp181); |
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152 | tmp184 = tmp183 - tmp182; |
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153 | X[2 * iostride] = (K2_000000000 * tmp182) + tmp183; |
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154 | X[8 * iostride] = tmp185 + tmp184; |
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155 | X[5 * iostride] = tmp184 - tmp185; |
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156 | } |
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157 | } |
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158 | X = X + dist; |
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159 | Y = Y - dist; |
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160 | for (i = 2; i < m; i = i + 2, X = X + dist, Y = Y - dist, W = W + 8) { |
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161 | fftw_real tmp45; |
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162 | fftw_real tmp88; |
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163 | fftw_real tmp136; |
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164 | fftw_real tmp61; |
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165 | fftw_real tmp108; |
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166 | fftw_real tmp126; |
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167 | fftw_real tmp50; |
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168 | fftw_real tmp55; |
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169 | fftw_real tmp56; |
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170 | fftw_real tmp102; |
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171 | fftw_real tmp110; |
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172 | fftw_real tmp132; |
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173 | fftw_real tmp138; |
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174 | fftw_real tmp129; |
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175 | fftw_real tmp137; |
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176 | fftw_real tmp95; |
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177 | fftw_real tmp109; |
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178 | fftw_real tmp66; |
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179 | fftw_real tmp71; |
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180 | fftw_real tmp72; |
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181 | ASSERT_ALIGNED_DOUBLE(); |
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182 | { |
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183 | fftw_real tmp41; |
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184 | fftw_real tmp57; |
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185 | fftw_real tmp44; |
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186 | fftw_real tmp106; |
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187 | fftw_real tmp60; |
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188 | fftw_real tmp87; |
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189 | fftw_real tmp86; |
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190 | fftw_real tmp107; |
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191 | ASSERT_ALIGNED_DOUBLE(); |
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192 | tmp41 = X[0]; |
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193 | tmp57 = Y[0]; |
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194 | { |
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195 | fftw_real tmp42; |
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196 | fftw_real tmp43; |
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197 | fftw_real tmp58; |
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198 | fftw_real tmp59; |
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199 | ASSERT_ALIGNED_DOUBLE(); |
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200 | tmp42 = X[3 * iostride]; |
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201 | tmp43 = Y[-6 * iostride]; |
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202 | tmp44 = tmp42 + tmp43; |
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203 | tmp106 = K866025403 * (tmp42 - tmp43); |
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204 | tmp58 = Y[-3 * iostride]; |
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205 | tmp59 = X[6 * iostride]; |
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206 | tmp60 = tmp58 - tmp59; |
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207 | tmp87 = K866025403 * (tmp58 + tmp59); |
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208 | } |
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209 | tmp45 = tmp41 + tmp44; |
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210 | tmp86 = tmp41 - (K500000000 * tmp44); |
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211 | tmp88 = tmp86 - tmp87; |
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212 | tmp136 = tmp86 + tmp87; |
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213 | tmp61 = tmp57 + tmp60; |
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214 | tmp107 = tmp57 - (K500000000 * tmp60); |
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215 | tmp108 = tmp106 + tmp107; |
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216 | tmp126 = tmp107 - tmp106; |
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217 | } |
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218 | { |
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219 | fftw_real tmp46; |
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220 | fftw_real tmp49; |
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221 | fftw_real tmp89; |
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222 | fftw_real tmp92; |
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223 | fftw_real tmp62; |
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224 | fftw_real tmp65; |
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225 | fftw_real tmp90; |
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226 | fftw_real tmp93; |
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227 | fftw_real tmp51; |
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228 | fftw_real tmp54; |
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229 | fftw_real tmp96; |
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230 | fftw_real tmp99; |
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231 | fftw_real tmp67; |
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232 | fftw_real tmp70; |
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233 | fftw_real tmp97; |
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234 | fftw_real tmp100; |
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235 | ASSERT_ALIGNED_DOUBLE(); |
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236 | { |
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237 | fftw_real tmp47; |
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238 | fftw_real tmp48; |
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239 | fftw_real tmp63; |
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240 | fftw_real tmp64; |
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241 | ASSERT_ALIGNED_DOUBLE(); |
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242 | tmp46 = X[iostride]; |
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243 | tmp47 = X[4 * iostride]; |
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244 | tmp48 = Y[-7 * iostride]; |
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245 | tmp49 = tmp47 + tmp48; |
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246 | tmp89 = tmp46 - (K500000000 * tmp49); |
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247 | tmp92 = K866025403 * (tmp47 - tmp48); |
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248 | tmp62 = Y[-iostride]; |
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249 | tmp63 = Y[-4 * iostride]; |
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250 | tmp64 = X[7 * iostride]; |
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251 | tmp65 = tmp63 - tmp64; |
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252 | tmp90 = K866025403 * (tmp63 + tmp64); |
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253 | tmp93 = tmp62 - (K500000000 * tmp65); |
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254 | } |
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255 | { |
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256 | fftw_real tmp52; |
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257 | fftw_real tmp53; |
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258 | fftw_real tmp68; |
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259 | fftw_real tmp69; |
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260 | ASSERT_ALIGNED_DOUBLE(); |
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261 | tmp51 = X[2 * iostride]; |
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262 | tmp52 = Y[-5 * iostride]; |
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263 | tmp53 = Y[-8 * iostride]; |
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264 | tmp54 = tmp52 + tmp53; |
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265 | tmp96 = tmp51 - (K500000000 * tmp54); |
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266 | tmp99 = K866025403 * (tmp52 - tmp53); |
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267 | tmp67 = Y[-2 * iostride]; |
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268 | tmp68 = X[5 * iostride]; |
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269 | tmp69 = X[8 * iostride]; |
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270 | tmp70 = tmp68 + tmp69; |
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271 | tmp97 = K866025403 * (tmp68 - tmp69); |
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272 | tmp100 = tmp67 + (K500000000 * tmp70); |
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273 | } |
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274 | tmp50 = tmp46 + tmp49; |
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275 | tmp55 = tmp51 + tmp54; |
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276 | tmp56 = tmp50 + tmp55; |
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277 | { |
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278 | fftw_real tmp98; |
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279 | fftw_real tmp101; |
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280 | fftw_real tmp130; |
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281 | fftw_real tmp131; |
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282 | ASSERT_ALIGNED_DOUBLE(); |
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283 | tmp98 = tmp96 + tmp97; |
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284 | tmp101 = tmp99 + tmp100; |
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285 | tmp102 = (K173648177 * tmp98) - (K984807753 * tmp101); |
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286 | tmp110 = (K984807753 * tmp98) + (K173648177 * tmp101); |
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287 | tmp130 = tmp96 - tmp97; |
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288 | tmp131 = tmp100 - tmp99; |
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289 | tmp132 = (K342020143 * tmp130) - (K939692620 * tmp131); |
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290 | tmp138 = (K939692620 * tmp130) + (K342020143 * tmp131); |
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291 | } |
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292 | { |
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293 | fftw_real tmp127; |
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294 | fftw_real tmp128; |
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295 | fftw_real tmp91; |
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296 | fftw_real tmp94; |
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297 | ASSERT_ALIGNED_DOUBLE(); |
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298 | tmp127 = tmp93 - tmp92; |
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299 | tmp128 = tmp89 + tmp90; |
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300 | tmp129 = (K173648177 * tmp127) + (K984807753 * tmp128); |
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301 | tmp137 = (K173648177 * tmp128) - (K984807753 * tmp127); |
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302 | tmp91 = tmp89 - tmp90; |
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303 | tmp94 = tmp92 + tmp93; |
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304 | tmp95 = (K766044443 * tmp91) - (K642787609 * tmp94); |
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305 | tmp109 = (K766044443 * tmp94) + (K642787609 * tmp91); |
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306 | tmp66 = tmp62 + tmp65; |
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307 | tmp71 = tmp67 - tmp70; |
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308 | tmp72 = tmp66 + tmp71; |
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309 | } |
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310 | } |
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311 | X[0] = tmp45 + tmp56; |
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312 | { |
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313 | fftw_real tmp76; |
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314 | fftw_real tmp82; |
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315 | fftw_real tmp80; |
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316 | fftw_real tmp84; |
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317 | ASSERT_ALIGNED_DOUBLE(); |
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318 | { |
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319 | fftw_real tmp74; |
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320 | fftw_real tmp75; |
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321 | fftw_real tmp78; |
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322 | fftw_real tmp79; |
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323 | ASSERT_ALIGNED_DOUBLE(); |
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324 | tmp74 = tmp61 - (K500000000 * tmp72); |
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325 | tmp75 = K866025403 * (tmp50 - tmp55); |
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326 | tmp76 = tmp74 - tmp75; |
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327 | tmp82 = tmp75 + tmp74; |
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328 | tmp78 = tmp45 - (K500000000 * tmp56); |
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329 | tmp79 = K866025403 * (tmp71 - tmp66); |
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330 | tmp80 = tmp78 - tmp79; |
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331 | tmp84 = tmp78 + tmp79; |
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332 | } |
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333 | { |
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334 | fftw_real tmp73; |
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335 | fftw_real tmp77; |
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336 | fftw_real tmp81; |
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337 | fftw_real tmp83; |
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338 | ASSERT_ALIGNED_DOUBLE(); |
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339 | tmp73 = c_re(W[5]); |
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340 | tmp77 = c_im(W[5]); |
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341 | Y[-2 * iostride] = (tmp73 * tmp76) - (tmp77 * tmp80); |
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342 | X[6 * iostride] = (tmp77 * tmp76) + (tmp73 * tmp80); |
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343 | tmp81 = c_re(W[2]); |
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344 | tmp83 = c_im(W[2]); |
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345 | Y[-5 * iostride] = (tmp81 * tmp82) - (tmp83 * tmp84); |
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346 | X[3 * iostride] = (tmp83 * tmp82) + (tmp81 * tmp84); |
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347 | } |
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348 | } |
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349 | Y[-8 * iostride] = tmp61 + tmp72; |
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350 | { |
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351 | fftw_real tmp115; |
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352 | fftw_real tmp104; |
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353 | fftw_real tmp118; |
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354 | fftw_real tmp119; |
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355 | fftw_real tmp112; |
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356 | fftw_real tmp114; |
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357 | fftw_real tmp103; |
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358 | fftw_real tmp111; |
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359 | fftw_real tmp85; |
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360 | fftw_real tmp105; |
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361 | ASSERT_ALIGNED_DOUBLE(); |
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362 | tmp115 = K866025403 * (tmp95 - tmp102); |
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363 | tmp103 = tmp95 + tmp102; |
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364 | tmp104 = tmp88 + tmp103; |
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365 | tmp118 = tmp88 - (K500000000 * tmp103); |
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366 | tmp119 = K866025403 * (tmp110 - tmp109); |
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367 | tmp111 = tmp109 + tmp110; |
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368 | tmp112 = tmp108 + tmp111; |
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369 | tmp114 = tmp108 - (K500000000 * tmp111); |
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370 | tmp85 = c_re(W[0]); |
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371 | tmp105 = c_im(W[0]); |
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372 | X[iostride] = (tmp85 * tmp104) + (tmp105 * tmp112); |
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373 | Y[-7 * iostride] = (tmp85 * tmp112) - (tmp105 * tmp104); |
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374 | { |
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375 | fftw_real tmp122; |
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376 | fftw_real tmp124; |
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377 | fftw_real tmp121; |
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378 | fftw_real tmp123; |
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379 | ASSERT_ALIGNED_DOUBLE(); |
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380 | tmp122 = tmp115 + tmp114; |
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381 | tmp124 = tmp118 + tmp119; |
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382 | tmp121 = c_re(W[3]); |
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383 | tmp123 = c_im(W[3]); |
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384 | Y[-4 * iostride] = (tmp121 * tmp122) - (tmp123 * tmp124); |
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385 | X[4 * iostride] = (tmp123 * tmp122) + (tmp121 * tmp124); |
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386 | } |
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387 | { |
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388 | fftw_real tmp116; |
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389 | fftw_real tmp120; |
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390 | fftw_real tmp113; |
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391 | fftw_real tmp117; |
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392 | ASSERT_ALIGNED_DOUBLE(); |
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393 | tmp116 = tmp114 - tmp115; |
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394 | tmp120 = tmp118 - tmp119; |
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395 | tmp113 = c_re(W[6]); |
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396 | tmp117 = c_im(W[6]); |
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397 | Y[-iostride] = (tmp113 * tmp116) - (tmp117 * tmp120); |
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398 | X[7 * iostride] = (tmp117 * tmp116) + (tmp113 * tmp120); |
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399 | } |
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400 | } |
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401 | { |
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402 | fftw_real tmp143; |
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403 | fftw_real tmp134; |
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404 | fftw_real tmp146; |
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405 | fftw_real tmp147; |
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406 | fftw_real tmp140; |
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407 | fftw_real tmp142; |
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408 | fftw_real tmp133; |
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409 | fftw_real tmp139; |
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410 | fftw_real tmp125; |
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411 | fftw_real tmp135; |
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412 | ASSERT_ALIGNED_DOUBLE(); |
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413 | tmp143 = K866025403 * (tmp132 - tmp129); |
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414 | tmp133 = tmp129 + tmp132; |
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415 | tmp134 = tmp126 + tmp133; |
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416 | tmp146 = tmp126 - (K500000000 * tmp133); |
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417 | tmp147 = K866025403 * (tmp137 + tmp138); |
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418 | tmp139 = tmp137 - tmp138; |
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419 | tmp140 = tmp136 + tmp139; |
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420 | tmp142 = tmp136 - (K500000000 * tmp139); |
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421 | tmp125 = c_re(W[1]); |
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422 | tmp135 = c_im(W[1]); |
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423 | Y[-6 * iostride] = (tmp125 * tmp134) - (tmp135 * tmp140); |
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424 | X[2 * iostride] = (tmp135 * tmp134) + (tmp125 * tmp140); |
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425 | { |
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426 | fftw_real tmp150; |
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427 | fftw_real tmp152; |
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428 | fftw_real tmp149; |
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429 | fftw_real tmp151; |
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430 | ASSERT_ALIGNED_DOUBLE(); |
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431 | tmp150 = tmp143 + tmp142; |
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432 | tmp152 = tmp146 + tmp147; |
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433 | tmp149 = c_re(W[4]); |
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434 | tmp151 = c_im(W[4]); |
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435 | X[5 * iostride] = (tmp149 * tmp150) + (tmp151 * tmp152); |
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436 | Y[-3 * iostride] = (tmp149 * tmp152) - (tmp151 * tmp150); |
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437 | } |
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438 | { |
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439 | fftw_real tmp144; |
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440 | fftw_real tmp148; |
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441 | fftw_real tmp141; |
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442 | fftw_real tmp145; |
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443 | ASSERT_ALIGNED_DOUBLE(); |
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444 | tmp144 = tmp142 - tmp143; |
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445 | tmp148 = tmp146 - tmp147; |
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446 | tmp141 = c_re(W[7]); |
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447 | tmp145 = c_im(W[7]); |
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448 | X[8 * iostride] = (tmp141 * tmp144) + (tmp145 * tmp148); |
||
449 | Y[0] = (tmp141 * tmp148) - (tmp145 * tmp144); |
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450 | } |
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451 | } |
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452 | } |
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453 | if (i == m) { |
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454 | fftw_real tmp3; |
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455 | fftw_real tmp33; |
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456 | fftw_real tmp17; |
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457 | fftw_real tmp12; |
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458 | fftw_real tmp11; |
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459 | fftw_real tmp20; |
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460 | fftw_real tmp34; |
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461 | fftw_real tmp7; |
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462 | fftw_real tmp36; |
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463 | fftw_real tmp35; |
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464 | fftw_real tmp23; |
||
465 | fftw_real tmp29; |
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466 | fftw_real tmp26; |
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467 | fftw_real tmp37; |
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468 | fftw_real tmp8; |
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469 | fftw_real tmp13; |
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470 | ASSERT_ALIGNED_DOUBLE(); |
||
471 | { |
||
472 | fftw_real tmp16; |
||
473 | fftw_real tmp1; |
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474 | fftw_real tmp2; |
||
475 | fftw_real tmp14; |
||
476 | fftw_real tmp15; |
||
477 | ASSERT_ALIGNED_DOUBLE(); |
||
478 | tmp15 = Y[-iostride]; |
||
479 | tmp16 = K1_732050807 * tmp15; |
||
480 | tmp1 = X[4 * iostride]; |
||
481 | tmp2 = X[iostride]; |
||
482 | tmp14 = tmp2 - tmp1; |
||
483 | tmp3 = tmp1 + (K2_000000000 * tmp2); |
||
484 | tmp33 = tmp14 - tmp16; |
||
485 | tmp17 = tmp14 + tmp16; |
||
486 | } |
||
487 | { |
||
488 | fftw_real tmp4; |
||
489 | fftw_real tmp6; |
||
490 | fftw_real tmp5; |
||
491 | fftw_real tmp24; |
||
492 | fftw_real tmp22; |
||
493 | fftw_real tmp27; |
||
494 | fftw_real tmp18; |
||
495 | fftw_real tmp10; |
||
496 | fftw_real tmp21; |
||
497 | fftw_real tmp19; |
||
498 | fftw_real tmp28; |
||
499 | fftw_real tmp9; |
||
500 | fftw_real tmp25; |
||
501 | ASSERT_ALIGNED_DOUBLE(); |
||
502 | tmp4 = X[3 * iostride]; |
||
503 | tmp6 = X[2 * iostride]; |
||
504 | tmp5 = X[0]; |
||
505 | tmp24 = K866025403 * (tmp4 - tmp5); |
||
506 | tmp22 = (K500000000 * (tmp4 + tmp5)) - tmp6; |
||
507 | tmp27 = K866025403 * (tmp6 - tmp5); |
||
508 | tmp18 = (K500000000 * (tmp5 + tmp6)) - tmp4; |
||
509 | tmp9 = Y[0]; |
||
510 | tmp12 = Y[-2 * iostride]; |
||
511 | tmp10 = Y[-3 * iostride]; |
||
512 | tmp11 = tmp9 + tmp10; |
||
513 | tmp21 = K866025403 * (tmp9 - tmp10); |
||
514 | tmp19 = K866025403 * (tmp9 + tmp12); |
||
515 | tmp28 = K500000000 * (tmp12 - tmp9); |
||
516 | tmp20 = tmp18 + tmp19; |
||
517 | tmp34 = tmp18 - tmp19; |
||
518 | tmp7 = tmp4 + tmp5 + tmp6; |
||
519 | tmp36 = tmp27 + tmp28 + tmp10; |
||
520 | tmp35 = tmp22 + tmp21; |
||
521 | tmp23 = tmp21 - tmp22; |
||
522 | tmp29 = tmp27 - (tmp28 + tmp10); |
||
523 | tmp25 = K500000000 * tmp11; |
||
524 | tmp26 = tmp24 - tmp25 - tmp12; |
||
525 | tmp37 = (tmp24 + tmp12) + tmp25; |
||
526 | } |
||
527 | X[0] = tmp3 + (K2_000000000 * tmp7); |
||
528 | tmp8 = tmp7 - tmp3; |
||
529 | tmp13 = K1_732050807 * (tmp11 - tmp12); |
||
530 | X[3 * iostride] = tmp8 - tmp13; |
||
531 | X[6 * iostride] = -(tmp8 + tmp13); |
||
532 | { |
||
533 | fftw_real tmp32; |
||
534 | fftw_real tmp30; |
||
535 | fftw_real tmp31; |
||
536 | fftw_real tmp40; |
||
537 | fftw_real tmp38; |
||
538 | fftw_real tmp39; |
||
539 | ASSERT_ALIGNED_DOUBLE(); |
||
540 | tmp32 = (K813797681 * tmp26) + (K150383733 * tmp29) - (K296198132 * tmp23) - (K852868531 * tmp20); |
||
541 | tmp30 = (K173648177 * tmp20) + (K939692620 * tmp23) + (K342020143 * tmp26) + (K984807753 * tmp29); |
||
542 | tmp31 = tmp17 - (K500000000 * tmp30); |
||
543 | X[2 * iostride] = -(tmp17 + tmp30); |
||
544 | X[8 * iostride] = tmp32 - tmp31; |
||
545 | X[5 * iostride] = tmp31 + tmp32; |
||
546 | tmp40 = (K556670399 * tmp34) + (K663413948 * tmp36) - (K150383733 * tmp37) - (K852868531 * tmp35); |
||
547 | tmp38 = (K766044443 * tmp34) + (K173648177 * tmp35) - (K642787609 * tmp36) - (K984807753 * tmp37); |
||
548 | tmp39 = (K500000000 * tmp38) - tmp33; |
||
549 | X[iostride] = tmp33 + tmp38; |
||
550 | X[7 * iostride] = tmp40 - tmp39; |
||
551 | X[4 * iostride] = tmp39 + tmp40; |
||
552 | } |
||
553 | } |
||
554 | } |
||
555 | |||
556 | static const int twiddle_order[] = |
||
557 | {1, 2, 3, 4, 5, 6, 7, 8}; |
||
558 | fftw_codelet_desc fftw_hc2hc_backward_9_desc = |
||
559 | { |
||
560 | "fftw_hc2hc_backward_9", |
||
561 | (void (*)()) fftw_hc2hc_backward_9, |
||
562 | 9, |
||
563 | FFTW_BACKWARD, |
||
564 | FFTW_HC2HC, |
||
565 | 212, |
||
566 | 8, |
||
567 | twiddle_order, |
||
568 | }; |