src/fftw/fcr_14.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 13:55:10 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 -hc2real 14 */
  27
  28 /*
  29  * This function contains 62 FP additions, 38 FP multiplications,
  30  * (or, 60 additions, 36 multiplications, 2 fused multiply/add),
  31  * 24 stack variables, and 28 memory accesses
  32  */
  33 static const fftw_real K445041867 = FFTW_KONST(+0.445041867912628808577805128993589518932711138);
  34 static const fftw_real K1_801937735 = FFTW_KONST(+1.801937735804838252472204639014890102331838324);
  35 static const fftw_real K1_246979603 = FFTW_KONST(+1.246979603717467061050009768008479621264549462);
  36 static const fftw_real K867767478 = FFTW_KONST(+0.867767478235116240951536665696717509219981456);
  37 static const fftw_real K1_949855824 = FFTW_KONST(+1.949855824363647214036263365987862434465571601);
  38 static const fftw_real K1_563662964 = FFTW_KONST(+1.563662964936059617416889053348115500464669037);
  39 static const fftw_real K2_000000000 = FFTW_KONST(+2.000000000000000000000000000000000000000000000);
  40
  41 /*
  42  * Generator Id's :
  43  * $Id$
  44  * $Id$
  45  * $Id$
  46  */
  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)
  49 {
  50      fftw_real tmp3;
  51      fftw_real tmp13;
  52      fftw_real tmp6;
  53      fftw_real tmp14;
  54      fftw_real tmp26;
  55      fftw_real tmp35;
  56      fftw_real tmp23;
  57      fftw_real tmp34;
  58      fftw_real tmp12;
  59      fftw_real tmp16;
  60      fftw_real tmp20;
  61      fftw_real tmp33;
  62      fftw_real tmp9;
  63      fftw_real tmp15;
  64      fftw_real tmp1;
  65      fftw_real tmp2;
  66      ASSERT_ALIGNED_DOUBLE();
  67      tmp1 = real_input[0];
  68      tmp2 = real_input[7 * real_istride];
  69      tmp3 = tmp1 - tmp2;
  70      tmp13 = tmp1 + tmp2;
  71      {
  72           fftw_real tmp4;
  73           fftw_real tmp5;
  74           fftw_real tmp24;
  75           fftw_real tmp25;
  76           ASSERT_ALIGNED_DOUBLE();
  77           tmp4 = real_input[2 * real_istride];
  78           tmp5 = real_input[5 * real_istride];
  79           tmp6 = tmp4 - tmp5;
  80           tmp14 = tmp4 + tmp5;
  81           tmp24 = imag_input[2 * imag_istride];
  82           tmp25 = imag_input[5 * imag_istride];
  83           tmp26 = tmp24 - tmp25;
  84           tmp35 = tmp24 + tmp25;
  85      }
  86      {
  87           fftw_real tmp21;
  88           fftw_real tmp22;
  89           fftw_real tmp10;
  90           fftw_real tmp11;
  91           ASSERT_ALIGNED_DOUBLE();
  92           tmp21 = imag_input[6 * imag_istride];
  93           tmp22 = imag_input[imag_istride];
  94           tmp23 = tmp21 - tmp22;
  95           tmp34 = tmp21 + tmp22;
  96           tmp10 = real_input[6 * real_istride];
  97           tmp11 = real_input[real_istride];
  98           tmp12 = tmp10 - tmp11;
  99           tmp16 = tmp10 + tmp11;
 100      }
 101      {
 102           fftw_real tmp18;
 103           fftw_real tmp19;
 104           fftw_real tmp7;
 105           fftw_real tmp8;
 106           ASSERT_ALIGNED_DOUBLE();
 107           tmp18 = imag_input[4 * imag_istride];
 108           tmp19 = imag_input[3 * imag_istride];
 109           tmp20 = tmp18 - tmp19;
 110           tmp33 = tmp18 + tmp19;
 111           tmp7 = real_input[4 * real_istride];
 112           tmp8 = real_input[3 * real_istride];
 113           tmp9 = tmp7 - tmp8;
 114           tmp15 = tmp7 + tmp8;
 115      }
 116      {
 117           fftw_real tmp38;
 118           fftw_real tmp37;
 119           fftw_real tmp29;
 120           fftw_real tmp28;
 121           ASSERT_ALIGNED_DOUBLE();
 122           output[7 * ostride] = tmp3 + (K2_000000000 * (tmp6 + tmp9 + tmp12));
 123           tmp38 = (K1_563662964 * tmp35) + (K1_949855824 * tmp33) + (K867767478 * tmp34);
 124           tmp37 = tmp3 + (K1_246979603 * tmp6) - (K1_801937735 * tmp12) - (K445041867 * tmp9);
 125           output[ostride] = tmp37 - tmp38;
 126           output[13 * ostride] = tmp37 + tmp38;
 127           {
 128                fftw_real tmp40;
 129                fftw_real tmp39;
 130                fftw_real tmp36;
 131                fftw_real tmp32;
 132                ASSERT_ALIGNED_DOUBLE();
 133                tmp40 = (K867767478 * tmp33) + (K1_563662964 * tmp34) - (K1_949855824 * tmp35);
 134                tmp39 = tmp3 + (K1_246979603 * tmp12) - (K1_801937735 * tmp9) - (K445041867 * tmp6);
 135                output[5 * ostride] = tmp39 - tmp40;
 136                output[9 * ostride] = tmp39 + tmp40;
 137                tmp36 = (K1_563662964 * tmp33) - (K1_949855824 * tmp34) - (K867767478 * tmp35);
 138                tmp32 = tmp3 + (K1_246979603 * tmp9) - (K445041867 * tmp12) - (K1_801937735 * tmp6);
 139                output[11 * ostride] = tmp32 - tmp36;
 140                output[3 * ostride] = tmp32 + tmp36;
 141           }
 142           output[0] = tmp13 + (K2_000000000 * (tmp14 + tmp15 + tmp16));
 143           tmp29 = (K867767478 * tmp20) + (K1_563662964 * tmp23) - (K1_949855824 * tmp26);
 144           tmp28 = tmp13 + (K1_246979603 * tmp16) - (K1_801937735 * tmp15) - (K445041867 * tmp14);
 145           output[12 * ostride] = tmp28 - tmp29;
 146           output[2 * ostride] = tmp28 + tmp29;
 147           {
 148                fftw_real tmp31;
 149                fftw_real tmp30;
 150                fftw_real tmp27;
 151                fftw_real tmp17;
 152                ASSERT_ALIGNED_DOUBLE();
 153                tmp31 = (K1_563662964 * tmp26) + (K1_949855824 * tmp20) + (K867767478 * tmp23);
 154                tmp30 = tmp13 + (K1_246979603 * tmp14) - (K1_801937735 * tmp16) - (K445041867 * tmp15);
 155                output[8 * ostride] = tmp30 - tmp31;
 156                output[6 * ostride] = tmp30 + tmp31;
 157                tmp27 = (K1_563662964 * tmp20) - (K1_949855824 * tmp23) - (K867767478 * tmp26);
 158                tmp17 = tmp13 + (K1_246979603 * tmp15) - (K445041867 * tmp16) - (K1_801937735 * tmp14);
 159                output[4 * ostride] = tmp17 - tmp27;
 160                output[10 * ostride] = tmp17 + tmp27;
 161           }
 162      }
 163 }
 164
 165 fftw_codelet_desc fftw_hc2real_14_desc =
 166 {
 167      "fftw_hc2real_14",
 168      (void (*)()) fftw_hc2real_14,
 169      14,
 170      FFTW_BACKWARD,
 171      FFTW_HC2REAL,
 172      323,
 173      0,
 174      (const int *) 0,
 175 };