src/fftw/fn_9.c

   1 /*
   2  * Copyright (c) 1997-1999 Massachusetts Institute of Technology
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  *
  18  */
  19
  20 /* This file was automatically generated --- DO NOT EDIT */
  21 /* Generated on Tue May 18 13:54:27 EDT 1999 */
  22
  23 #include <fftw-int.h>
  24 #include <fftw.h>
  25
  26 /* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -notwiddle 9 */
  27
  28 /*
  29  * This function contains 80 FP additions, 40 FP multiplications,
  30  * (or, 60 additions, 20 multiplications, 20 fused multiply/add),
  31  * 30 stack variables, and 36 memory accesses
  32  */
  33 static const fftw_real K939692620 = FFTW_KONST(+0.939692620785908384054109277324731469936208134);
  34 static const fftw_real K342020143 = FFTW_KONST(+0.342020143325668733044099614682259580763083368);
  35 static const fftw_real K984807753 = FFTW_KONST(+0.984807753012208059366743024589523013670643252);
  36 static const fftw_real K173648177 = FFTW_KONST(+0.173648177666930348851716626769314796000375677);
  37 static const fftw_real K642787609 = FFTW_KONST(+0.642787609686539326322643409907263432907559884);
  38 static const fftw_real K766044443 = FFTW_KONST(+0.766044443118978035202392650555416673935832457);
  39 static const fftw_real K866025403 = FFTW_KONST(+0.866025403784438646763723170752936183471402627);
  40 static const fftw_real K500000000 = FFTW_KONST(+0.500000000000000000000000000000000000000000000);
  41
  42 /*
  43  * Generator Id's :
  44  * $Id$
  45  * $Id$
  46  * $Id$
  47  */
  48
  49 void fftw_no_twiddle_9(const fftw_complex *input, fftw_complex *output, int istride, int ostride)
  50 {
  51      fftw_real tmp5;
  52      fftw_real tmp17;
  53      fftw_real tmp50;
  54      fftw_real tmp20;
  55      fftw_real tmp78;
  56      fftw_real tmp53;
  57      fftw_real tmp10;
  58      fftw_real tmp26;
  59      fftw_real tmp58;
  60      fftw_real tmp74;
  61      fftw_real tmp31;
  62      fftw_real tmp59;
  63      fftw_real tmp15;
  64      fftw_real tmp37;
  65      fftw_real tmp62;
  66      fftw_real tmp75;
  67      fftw_real tmp42;
  68      fftw_real tmp61;
  69      ASSERT_ALIGNED_DOUBLE();
  70      {
  71           fftw_real tmp1;
  72           fftw_real tmp2;
  73           fftw_real tmp3;
  74           fftw_real tmp4;
  75           ASSERT_ALIGNED_DOUBLE();
  76           tmp1 = c_re(input[0]);
  77           tmp2 = c_re(input[3 * istride]);
  78           tmp3 = c_re(input[6 * istride]);
  79           tmp4 = tmp2 + tmp3;
  80           tmp5 = tmp1 + tmp4;
  81           tmp17 = tmp1 - (K500000000 * tmp4);
  82           tmp50 = K866025403 * (tmp3 - tmp2);
  83      }
  84      {
  85           fftw_real tmp51;
  86           fftw_real tmp18;
  87           fftw_real tmp19;
  88           fftw_real tmp52;
  89           ASSERT_ALIGNED_DOUBLE();
  90           tmp51 = c_im(input[0]);
  91           tmp18 = c_im(input[3 * istride]);
  92           tmp19 = c_im(input[6 * istride]);
  93           tmp52 = tmp18 + tmp19;
  94           tmp20 = K866025403 * (tmp18 - tmp19);
  95           tmp78 = tmp51 + tmp52;
  96           tmp53 = tmp51 - (K500000000 * tmp52);
  97      }
  98      {
  99           fftw_real tmp6;
 100           fftw_real tmp28;
 101           fftw_real tmp9;
 102           fftw_real tmp27;
 103           fftw_real tmp25;
 104           fftw_real tmp29;
 105           fftw_real tmp22;
 106           fftw_real tmp30;
 107           ASSERT_ALIGNED_DOUBLE();
 108           tmp6 = c_re(input[istride]);
 109           tmp28 = c_im(input[istride]);
 110           {
 111                fftw_real tmp7;
 112                fftw_real tmp8;
 113                fftw_real tmp23;
 114                fftw_real tmp24;
 115                ASSERT_ALIGNED_DOUBLE();
 116                tmp7 = c_re(input[4 * istride]);
 117                tmp8 = c_re(input[7 * istride]);
 118                tmp9 = tmp7 + tmp8;
 119                tmp27 = K866025403 * (tmp8 - tmp7);
 120                tmp23 = c_im(input[4 * istride]);
 121                tmp24 = c_im(input[7 * istride]);
 122                tmp25 = K866025403 * (tmp23 - tmp24);
 123                tmp29 = tmp23 + tmp24;
 124           }
 125           tmp10 = tmp6 + tmp9;
 126           tmp22 = tmp6 - (K500000000 * tmp9);
 127           tmp26 = tmp22 + tmp25;
 128           tmp58 = tmp22 - tmp25;
 129           tmp74 = tmp28 + tmp29;
 130           tmp30 = tmp28 - (K500000000 * tmp29);
 131           tmp31 = tmp27 + tmp30;
 132           tmp59 = tmp30 - tmp27;
 133      }
 134      {
 135           fftw_real tmp11;
 136           fftw_real tmp39;
 137           fftw_real tmp14;
 138           fftw_real tmp38;
 139           fftw_real tmp36;
 140           fftw_real tmp40;
 141           fftw_real tmp33;
 142           fftw_real tmp41;
 143           ASSERT_ALIGNED_DOUBLE();
 144           tmp11 = c_re(input[2 * istride]);
 145           tmp39 = c_im(input[2 * istride]);
 146           {
 147                fftw_real tmp12;
 148                fftw_real tmp13;
 149                fftw_real tmp34;
 150                fftw_real tmp35;
 151                ASSERT_ALIGNED_DOUBLE();
 152                tmp12 = c_re(input[5 * istride]);
 153                tmp13 = c_re(input[8 * istride]);
 154                tmp14 = tmp12 + tmp13;
 155                tmp38 = K866025403 * (tmp13 - tmp12);
 156                tmp34 = c_im(input[5 * istride]);
 157                tmp35 = c_im(input[8 * istride]);
 158                tmp36 = K866025403 * (tmp34 - tmp35);
 159                tmp40 = tmp34 + tmp35;
 160           }
 161           tmp15 = tmp11 + tmp14;
 162           tmp33 = tmp11 - (K500000000 * tmp14);
 163           tmp37 = tmp33 + tmp36;
 164           tmp62 = tmp33 - tmp36;
 165           tmp75 = tmp39 + tmp40;
 166           tmp41 = tmp39 - (K500000000 * tmp40);
 167           tmp42 = tmp38 + tmp41;
 168           tmp61 = tmp41 - tmp38;
 169      }
 170      {
 171           fftw_real tmp76;
 172           fftw_real tmp16;
 173           fftw_real tmp73;
 174           fftw_real tmp77;
 175           fftw_real tmp79;
 176           fftw_real tmp80;
 177           ASSERT_ALIGNED_DOUBLE();
 178           tmp76 = K866025403 * (tmp74 - tmp75);
 179           tmp16 = tmp10 + tmp15;
 180           tmp73 = tmp5 - (K500000000 * tmp16);
 181           c_re(output[0]) = tmp5 + tmp16;
 182           c_re(output[3 * ostride]) = tmp73 + tmp76;
 183           c_re(output[6 * ostride]) = tmp73 - tmp76;
 184           tmp77 = K866025403 * (tmp15 - tmp10);
 185           tmp79 = tmp74 + tmp75;
 186           tmp80 = tmp78 - (K500000000 * tmp79);
 187           c_im(output[3 * ostride]) = tmp77 + tmp80;
 188           c_im(output[6 * ostride]) = tmp80 - tmp77;
 189           c_im(output[0]) = tmp78 + tmp79;
 190      }
 191      {
 192           fftw_real tmp21;
 193           fftw_real tmp54;
 194           fftw_real tmp44;
 195           fftw_real tmp49;
 196           fftw_real tmp48;
 197           fftw_real tmp55;
 198           fftw_real tmp45;
 199           fftw_real tmp56;
 200           ASSERT_ALIGNED_DOUBLE();
 201           tmp21 = tmp17 + tmp20;
 202           tmp54 = tmp50 + tmp53;
 203           {
 204                fftw_real tmp32;
 205                fftw_real tmp43;
 206                fftw_real tmp46;
 207                fftw_real tmp47;
 208                ASSERT_ALIGNED_DOUBLE();
 209                tmp32 = (K766044443 * tmp26) + (K642787609 * tmp31);
 210                tmp43 = (K173648177 * tmp37) + (K984807753 * tmp42);
 211                tmp44 = tmp32 + tmp43;
 212                tmp49 = K866025403 * (tmp43 - tmp32);
 213                tmp46 = (K766044443 * tmp31) - (K642787609 * tmp26);
 214                tmp47 = (K173648177 * tmp42) - (K984807753 * tmp37);
 215                tmp48 = K866025403 * (tmp46 - tmp47);
 216                tmp55 = tmp46 + tmp47;
 217           }
 218           c_re(output[ostride]) = tmp21 + tmp44;
 219           tmp45 = tmp21 - (K500000000 * tmp44);
 220           c_re(output[7 * ostride]) = tmp45 - tmp48;
 221           c_re(output[4 * ostride]) = tmp45 + tmp48;
 222           c_im(output[ostride]) = tmp54 + tmp55;
 223           tmp56 = tmp54 - (K500000000 * tmp55);
 224           c_im(output[4 * ostride]) = tmp49 + tmp56;
 225           c_im(output[7 * ostride]) = tmp56 - tmp49;
 226      }
 227      {
 228           fftw_real tmp57;
 229           fftw_real tmp69;
 230           fftw_real tmp72;
 231           fftw_real tmp66;
 232           fftw_real tmp64;
 233           fftw_real tmp65;
 234           fftw_real tmp71;
 235           fftw_real tmp70;
 236           ASSERT_ALIGNED_DOUBLE();
 237           {
 238                fftw_real tmp67;
 239                fftw_real tmp68;
 240                fftw_real tmp60;
 241                fftw_real tmp63;
 242                ASSERT_ALIGNED_DOUBLE();
 243                tmp57 = tmp17 - tmp20;
 244                tmp67 = (K173648177 * tmp59) - (K984807753 * tmp58);
 245                tmp68 = (K342020143 * tmp62) + (K939692620 * tmp61);
 246                tmp69 = tmp67 - tmp68;
 247                tmp72 = K866025403 * (tmp67 + tmp68);
 248                tmp66 = tmp53 - tmp50;
 249                tmp60 = (K173648177 * tmp58) + (K984807753 * tmp59);
 250                tmp63 = (K342020143 * tmp61) - (K939692620 * tmp62);
 251                tmp64 = tmp60 + tmp63;
 252                tmp65 = K866025403 * (tmp63 - tmp60);
 253           }
 254           c_re(output[2 * ostride]) = tmp57 + tmp64;
 255           tmp71 = tmp57 - (K500000000 * tmp64);
 256           c_re(output[8 * ostride]) = tmp71 - tmp72;
 257           c_re(output[5 * ostride]) = tmp71 + tmp72;
 258           c_im(output[2 * ostride]) = tmp66 + tmp69;
 259           tmp70 = tmp66 - (K500000000 * tmp69);
 260           c_im(output[5 * ostride]) = tmp65 + tmp70;
 261           c_im(output[8 * ostride]) = tmp70 - tmp65;
 262      }
 263 }
 264
 265 fftw_codelet_desc fftw_no_twiddle_9_desc =
 266 {
 267      "fftw_no_twiddle_9",
 268      (void (*)()) fftw_no_twiddle_9,
 269      9,
 270      FFTW_FORWARD,
 271      FFTW_NOTW,
 272      199,
 273      0,
 274      (const int *) 0,
 275 };