fni_13.c

FFTW, a collection of fast C routines to compute the Discrete Fourier Transform in one or more dime

/*
 * Copyright (c) 1997-1999, 2003 Massachusetts Institute of Technology
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

/* This file was automatically generated --- DO NOT EDIT */
/* Generated on Mon Mar 24 02:06:37 EST 2003 */

#include "fftw-int.h"
#include "fftw.h"

/* Generated by: /homee/stevenj/cvs/fftw/gensrc/genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -notwiddleinv 13 */

/*
 * This function contains 176 FP additions, 68 FP multiplications,
 * (or, 138 additions, 30 multiplications, 38 fused multiply/add),
 * 50 stack variables, and 52 memory accesses
 */
static const fftw_real K1_732050807 =
FFTW_KONST(+1.732050807568877293527446341505872366942805254);
static const fftw_real K156891391 =
FFTW_KONST(+0.156891391051584611046832726756003269660212636);
static const fftw_real K256247671 =
FFTW_KONST(+0.256247671582936600958684654061725059144125175);
static const fftw_real K300238635 =
FFTW_KONST(+0.300238635966332641462884626667381504676006424);
static const fftw_real K011599105 =
FFTW_KONST(+0.011599105605768290721655456654083252189827041);
static const fftw_real K174138601 =
FFTW_KONST(+0.174138601152135905005660794929264742616964676);
static const fftw_real K575140729 =
FFTW_KONST(+0.575140729474003121368385547455453388461001608);
static const fftw_real K2_000000000 =
FFTW_KONST(+2.000000000000000000000000000000000000000000000);
static const fftw_real K083333333 =
FFTW_KONST(+0.083333333333333333333333333333333333333333333);
static const fftw_real K075902986 =
FFTW_KONST(+0.075902986037193865983102897245103540356428373);
static const fftw_real K251768516 =
FFTW_KONST(+0.251768516431883313623436926934233488546674281);
static const fftw_real K258260390 =
FFTW_KONST(+0.258260390311744861420450644284508567852516811);
static const fftw_real K132983124 =
FFTW_KONST(+0.132983124607418643793760531921092974399165133);
static const fftw_real K503537032 =
FFTW_KONST(+0.503537032863766627246873853868466977093348562);
static const fftw_real K113854479 =
FFTW_KONST(+0.113854479055790798974654345867655310534642560);
static const fftw_real K265966249 =
FFTW_KONST(+0.265966249214837287587521063842185948798330267);
static const fftw_real K387390585 =
FFTW_KONST(+0.387390585467617292130675966426762851778775217);
static const fftw_real K866025403 =
FFTW_KONST(+0.866025403784438646763723170752936183471402627);
static const fftw_real K300462606 =
FFTW_KONST(+0.300462606288665774426601772289207995520941381);
static const fftw_real K500000000 =
FFTW_KONST(+0.500000000000000000000000000000000000000000000);

/*
 * Generator Id's : 
 * $Id: exprdag.ml,v 1.43 2003/03/16 23:43:46 stevenj Exp $
 * $Id: fft.ml,v 1.44 2003/03/16 23:43:46 stevenj Exp $
 * $Id: to_c.ml,v 1.26 2003/03/16 23:43:46 stevenj Exp $
 */

void fftwi_no_twiddle_13(const fftw_complex *input, fftw_complex *output,
			 int istride, int ostride)
{
     fftw_real tmp1;
     fftw_real tmp146;
     fftw_real tmp113;
     fftw_real tmp24;
     fftw_real tmp38;
     fftw_real tmp36;
     fftw_real tmp41;
     fftw_real tmp116;
     fftw_real tmp120;
     fftw_real tmp125;
     fftw_real tmp31;
     fftw_real tmp40;
     fftw_real tmp123;
     fftw_real tmp126;
     fftw_real tmp56;
     fftw_real tmp80;
     fftw_real tmp82;
     fftw_real tmp137;
     fftw_real tmp144;
     fftw_real tmp67;
     fftw_real tmp141;
     fftw_real tmp147;
     fftw_real tmp134;
     fftw_real tmp143;
     fftw_real tmp75;
     fftw_real tmp83;
     ASSERT_ALIGNED_DOUBLE;
     tmp1 = c_re(input[0]);
     tmp146 = c_im(input[0]);
     {
	  fftw_real tmp15;
	  fftw_real tmp114;
	  fftw_real tmp18;
	  fftw_real tmp26;
	  fftw_real tmp21;
	  fftw_real tmp25;
	  fftw_real tmp22;
	  fftw_real tmp115;
	  fftw_real tmp6;
	  fftw_real tmp32;
	  fftw_real tmp28;
	  fftw_real tmp11;
	  fftw_real tmp33;
	  fftw_real tmp29;
	  fftw_real tmp13;
	  fftw_real tmp14;
	  fftw_real tmp118;
	  fftw_real tmp119;
	  ASSERT_ALIGNED_DOUBLE;
	  tmp13 = c_re(input[8 * istride]);
	  tmp14 = c_re(input[5 * istride]);
	  tmp15 = tmp13 + tmp14;
	  tmp114 = tmp13 - tmp14;
	  {
	       fftw_real tmp16;
	       fftw_real tmp17;
	       fftw_real tmp19;
	       fftw_real tmp20;
	       ASSERT_ALIGNED_DOUBLE;
	       tmp16 = c_re(input[6 * istride]);
	       tmp17 = c_re(input[11 * istride]);
	       tmp18 = tmp16 + tmp17;
	       tmp26 = tmp16 - tmp17;
	       tmp19 = c_re(input[2 * istride]);
	       tmp20 = c_re(input[7 * istride]);
	       tmp21 = tmp19 + tmp20;
	       tmp25 = tmp19 - tmp20;
	  }
	  tmp22 = tmp18 + tmp21;
	  tmp115 = tmp26 + tmp25;
	  {
	       fftw_real tmp2;
	       fftw_real tmp3;
	       fftw_real tmp4;
	       fftw_real tmp5;
	       ASSERT_ALIGNED_DOUBLE;
	       tmp2 = c_re(input[istride]);
	       tmp3 = c_re(input[3 * istride]);
	       tmp4 = c_re(input[9 * istride]);
	       tmp5 = tmp3 + tmp4;
	       tmp6 = tmp2 + tmp5;
	       tmp32 = tmp2 - (K500000000 * tmp5);
	       tmp28 = tmp3 - tmp4;
	  }
	  {
	       fftw_real tmp7;
	       fftw_real tmp8;
	       fftw_real tmp9;
	       fftw_real tmp10;
	       ASSERT_ALIGNED_DOUBLE;
	       tmp7 = c_re(input[12 * istride]);
	       tmp8 = c_re(input[4 * istride]);
	       tmp9 = c_re(input[10 * istride]);
	       tmp10 = tmp8 + tmp9;
	       tmp11 = tmp7 + tmp10;
	       tmp33 = tmp7 - (K500000000 * tmp10);
	       tmp29 = tmp8 - tmp9;
	  }
	  tmp113 = tmp6 - tmp11;
	  {
	       fftw_real tmp12;
	       fftw_real tmp23;
	       fftw_real tmp34;
	       fftw_real tmp35;
	       ASSERT_ALIGNED_DOUBLE;
	       tmp12 = tmp6 + tmp11;
	       tmp23 = tmp15 + tmp22;
	       tmp24 = tmp12 + tmp23;
	       tmp38 = K300462606 * (tmp12 - tmp23);
	       tmp34 = tmp32 + tmp33;
	       tmp35 = tmp15 - (K500000000 * tmp22);
	       tmp36 = tmp34 - tmp35;
	       tmp41 = tmp34 + tmp35;
	  }
	  tmp116 = tmp114 - tmp115;
	  tmp118 = K866025403 * (tmp28 + tmp29);
	  tmp119 = tmp114 + (K500000000 * tmp115);
	  tmp120 = tmp118 + tmp119;
	  tmp125 = tmp119 - tmp118;
	  {
	       fftw_real tmp27;
	       fftw_real tmp30;
	       fftw_real tmp121;
	       fftw_real tmp122;
	       ASSERT_ALIGNED_DOUBLE;
	       tmp27 = tmp25 - tmp26;
	       tmp30 = tmp28 - tmp29;
	       tmp31 = tmp27 - tmp30;
	       tmp40 = tmp30 + tmp27;
	       tmp121 = tmp32 - tmp33;
	       tmp122 = K866025403 * (tmp18 - tmp21);
	       tmp123 = tmp121 - tmp122;
	       tmp126 = tmp121 + tmp122;
	  }
     }
     {
	  fftw_real tmp48;
	  fftw_real tmp131;
	  fftw_real tmp66;
	  fftw_real tmp70;
	  fftw_real tmp77;
	  fftw_real tmp61;
	  fftw_real tmp69;
	  fftw_real tmp76;
	  fftw_real tmp51;
	  fftw_real tmp73;
	  fftw_real tmp54;
	  fftw_real tmp72;
	  fftw_real tmp55;
	  fftw_real tmp132;
	  fftw_real tmp46;
	  fftw_real tmp47;
	  fftw_real tmp139;
	  fftw_real tmp140;
	  ASSERT_ALIGNED_DOUBLE;
	  tmp46 = c_im(input[8 * istride]);
	  tmp47 = c_im(input[5 * istride]);
	  tmp48 = tmp46 - tmp47;
	  tmp131 = tmp46 + tmp47;
	  {
	       fftw_real tmp62;
	       fftw_real tmp63;
	       fftw_real tmp64;
	       fftw_real tmp65;
	       ASSERT_ALIGNED_DOUBLE;
	       tmp62 = c_im(input[12 * istride]);
	       tmp63 = c_im(input[4 * istride]);
	       tmp64 = c_im(input[10 * istride]);
	       tmp65 = tmp63 + tmp64;
	       tmp66 = tmp62 + tmp65;
	       tmp70 = tmp62 - (K500000000 * tmp65);
	       tmp77 = tmp63 - tmp64;
	  }
	  {
	       fftw_real tmp57;
	       fftw_real tmp58;
	       fftw_real tmp59;
	       fftw_real tmp60;
	       ASSERT_ALIGNED_DOUBLE;
	       tmp57 = c_im(input[istride]);
	       tmp58 = c_im(input[3 * istride]);
	       tmp59 = c_im(input[9 * istride]);
	       tmp60 = tmp58 + tmp59;
	       tmp61 = tmp57 + tmp60;
	       tmp69 = tmp57 - (K500000000 * tmp60);
	       tmp76 = tmp58 - tmp59;
	  }
	  {
	       fftw_real tmp49;
	       fftw_real tmp50;
	       fftw_real tmp52;