fni_14.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 02:06:45 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 14 */

/*
 * This function contains 148 FP additions, 72 FP multiplications,
 * (or, 148 additions, 72 multiplications, 0 fused multiply/add),
 * 36 stack variables, and 56 memory accesses
 */
static const fftw_real K900968867 =
FFTW_KONST(+0.900968867902419126236102319507445051165919162);
static const fftw_real K222520933 =
FFTW_KONST(+0.222520933956314404288902564496794759466355569);
static const fftw_real K623489801 =
FFTW_KONST(+0.623489801858733530525004884004239810632274731);
static const fftw_real K781831482 =
FFTW_KONST(+0.781831482468029808708444526674057750232334519);
static const fftw_real K974927912 =
FFTW_KONST(+0.974927912181823607018131682993931217232785801);
static const fftw_real K433883739 =
FFTW_KONST(+0.433883739117558120475768332848358754609990728);

/*
 * 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_14(const fftw_complex *input, fftw_complex *output,
			 int istride, int ostride)
{
     fftw_real tmp3;
     fftw_real tmp25;
     fftw_real tmp84;
     fftw_real tmp93;
     fftw_real tmp10;
     fftw_real tmp77;
     fftw_real tmp28;
     fftw_real tmp97;
     fftw_real tmp42;
     fftw_real tmp86;
     fftw_real tmp65;
     fftw_real tmp92;
     fftw_real tmp17;
     fftw_real tmp79;
     fftw_real tmp31;
     fftw_real tmp99;
     fftw_real tmp56;
     fftw_real tmp81;
     fftw_real tmp68;
     fftw_real tmp94;
     fftw_real tmp24;
     fftw_real tmp78;
     fftw_real tmp34;
     fftw_real tmp98;
     fftw_real tmp49;
     fftw_real tmp85;
     fftw_real tmp71;
     fftw_real tmp95;
     ASSERT_ALIGNED_DOUBLE;
     {
	  fftw_real tmp1;
	  fftw_real tmp2;
	  fftw_real tmp82;
	  fftw_real tmp83;
	  ASSERT_ALIGNED_DOUBLE;
	  tmp1 = c_re(input[0]);
	  tmp2 = c_re(input[7 * istride]);
	  tmp3 = tmp1 - tmp2;
	  tmp25 = tmp1 + tmp2;
	  tmp82 = c_im(input[0]);
	  tmp83 = c_im(input[7 * istride]);
	  tmp84 = tmp82 - tmp83;
	  tmp93 = tmp82 + tmp83;
     }
     {
	  fftw_real tmp6;
	  fftw_real tmp26;
	  fftw_real tmp9;
	  fftw_real tmp27;
	  ASSERT_ALIGNED_DOUBLE;
	  {
	       fftw_real tmp4;
	       fftw_real tmp5;
	       fftw_real tmp7;
	       fftw_real tmp8;
	       ASSERT_ALIGNED_DOUBLE;
	       tmp4 = c_re(input[2 * istride]);
	       tmp5 = c_re(input[9 * istride]);
	       tmp6 = tmp4 - tmp5;
	       tmp26 = tmp4 + tmp5;
	       tmp7 = c_re(input[12 * istride]);
	       tmp8 = c_re(input[5 * istride]);
	       tmp9 = tmp7 - tmp8;
	       tmp27 = tmp7 + tmp8;
	  }
	  tmp10 = tmp6 + tmp9;
	  tmp77 = tmp6 - tmp9;
	  tmp28 = tmp26 + tmp27;
	  tmp97 = tmp26 - tmp27;
     }
     {
	  fftw_real tmp38;
	  fftw_real tmp63;
	  fftw_real tmp41;
	  fftw_real tmp64;
	  ASSERT_ALIGNED_DOUBLE;
	  {
	       fftw_real tmp36;
	       fftw_real tmp37;
	       fftw_real tmp39;
	       fftw_real tmp40;
	       ASSERT_ALIGNED_DOUBLE;
	       tmp36 = c_im(input[12 * istride]);
	       tmp37 = c_im(input[5 * istride]);
	       tmp38 = tmp36 - tmp37;
	       tmp63 = tmp36 + tmp37;
	       tmp39 = c_im(input[2 * istride]);
	       tmp40 = c_im(input[9 * istride]);
	       tmp41 = tmp39 - tmp40;
	       tmp64 = tmp39 + tmp40;
	  }
	  tmp42 = tmp38 - tmp41;
	  tmp86 = tmp38 + tmp41;
	  tmp65 = tmp63 - tmp64;
	  tmp92 = tmp63 + tmp64;
     }
     {
	  fftw_real tmp13;
	  fftw_real tmp29;
	  fftw_real tmp16;
	  fftw_real tmp30;
	  ASSERT_ALIGNED_DOUBLE;
	  {
	       fftw_real tmp11;
	       fftw_real tmp12;
	       fftw_real tmp14;
	       fftw_real tmp15;
	       ASSERT_ALIGNED_DOUBLE;
	       tmp11 = c_re(input[4 * istride]);
	       tmp12 = c_re(input[11 * istride]);
	       tmp13 = tmp11 - tmp12;
	       tmp29 = tmp11 + tmp12;
	       tmp14 = c_re(input[10 * istride]);
	       tmp15 = c_re(input[3 * istride]);
	       tmp16 = tmp14 - tmp15;
	       tmp30 = tmp14 + tmp15;
	  }
	  tmp17 = tmp13 + tmp16;
	  tmp79 = tmp13 - tmp16;
	  tmp31 = tmp29 + tmp30;
	  tmp99 = tmp30 - tmp29;
     }
     {
	  fftw_real tmp52;
	  fftw_real tmp67;
	  fftw_real tmp55;
	  fftw_real tmp66;
	  ASSERT_ALIGNED_DOUBLE;
	  {
	       fftw_real tmp50;
	       fftw_real tmp51;
	       fftw_real tmp53;
	       fftw_real tmp54;
	       ASSERT_ALIGNED_DOUBLE;
	       tmp50 = c_im(input[10 * istride]);
	       tmp51 = c_im(input[3 * istride]);
	       tmp52 = tmp50 - tmp51;
	       tmp67 = tmp50 + tmp51;
	       tmp53 = c_im(input[4 * istride]);
	       tmp54 = c_im(input[11 * istride]);
	       tmp55 = tmp53 - tmp54;
	       tmp66 = tmp53 + tmp54;
	  }
	  tmp56 = tmp52 - tmp55;
	  tmp81 = tmp52 + tmp55;
	  tmp68 = tmp66 - tmp67;
	  tmp94 = tmp67 + tmp66;
     }
     {
	  fftw_real tmp20;
	  fftw_real tmp32;
	  fftw_real tmp23;
	  fftw_real tmp33;
	  ASSERT_ALIGNED_DOUBLE;
	  {
	       fftw_real tmp18;
	       fftw_real tmp19;
	       fftw_real tmp21;
	       fftw_real tmp22;
	       ASSERT_ALIGNED_DOUBLE;
	       tmp18 = c_re(input[6 * istride]);
	       tmp19 = c_re(input[13 * istride]);
	       tmp20 = tmp18 - tmp19;
	       tmp32 = tmp18 + tmp19;
	       tmp21 = c_re(input[8 * istride]);
	       tmp22 = c_re(input[istride]);
	       tmp23 = tmp21 - tmp22;
	       tmp33 = tmp21 + tmp22;
	  }
	  tmp24 = tmp20 + tmp23;
	  tmp78 = tmp20 - tmp23;
	  tmp34 = tmp32 + tmp33;
	  tmp98 = tmp33 - tmp32;
     }
     {
	  fftw_real tmp45;
	  fftw_real tmp70;
	  fftw_real tmp48;
	  fftw_real tmp69;
	  ASSERT_ALIGNED_DOUBLE;
	  {
	       fftw_real tmp43;
	       fftw_real tmp44;
	       fftw_real tmp46;
	       fftw_real tmp47;
	       ASSERT_ALIGNED_DOUBLE;
	       tmp43 = c_im(input[8 * istride]);
	       tmp44 = c_im(input[istride]);
	       tmp45 = tmp43 - tmp44;
	       tmp70 = tmp43 + tmp44;
	       tmp46 = c_im(input[6 * istride]);
	       tmp47 = c_im(input[13 * istride]);
	       tmp48 = tmp46 - tmp47;
	       tmp69 = tmp46 + tmp47;
	  }
	  tmp49 = tmp45 - tmp48;
	  tmp85 = tmp45 + tmp48;
	  tmp71 = tmp69 - tmp70;
	  tmp95 = tmp70 + tmp69;
     }
     {
	  fftw_real tmp57;
	  fftw_real tmp35;
	  fftw_real tmp72;
	  fftw_real tmp62;
	  ASSERT_ALIGNED_DOUBLE;
	  c_re(output[7 * ostride]) = tmp3 + tmp10 + tmp17 + tmp24;
	  tmp57 =
	      (K433883739 * tmp42) + (K974927912 * tmp49) -
	      (K781831482 * tmp56);
	  tmp35 =
	      tmp3 + (K623489801 * tmp17) - (K222520933 * tmp24) -
	      (K900968867 * tmp10);
	  c_re(output[11 * ostride]) = tmp35 - tmp57;
	  c_re(output[3 * ostride]) = tmp35 + tmp57;
	  {
	       fftw_real tmp59;
	       fftw_real tmp58;
	       fftw_real tmp61;
	       fftw_real tmp60;
	       ASSERT_ALIGNED_DOUBLE;
	       tmp59 =
		   (K974927912 * tmp42) - (K433883739 * tmp56) -
		   (K781831482 * tmp49);
	       tmp58 =
		   tmp3 + (K623489801 * tmp24) - (K900968867 * tmp17) -
		   (K222520933 * tmp10);
	       c_re(output[5 * ostride]) = tmp58 - tmp59;
	       c_re(output[9 * ostride]) = tmp58 + tmp59;
	       tmp61 =
		   (K781831482 * tmp42) + (K433883739 * tmp49) +
		   (K974927912 * tmp56);
	       tmp60 =
		   tmp3 + (K623489801 * tmp10) - (K900968867 * tmp24) -
		   (K222520933 * tmp17);
	       c_re(output[13 * ostride]) = tmp60 - tmp61;
	       c_re(output[ostride]) = tmp60 + tmp61;
	  }
	  c_re(output[0]) = tmp25 + tmp28 + tmp31 + tmp34;
	  tmp72 =
	      (K781831482 * tmp65) - (K974927912 * tmp68) -
	      (K433883739 * tmp71);
	  tmp62 =
	      tmp25 + (K623489801 * tmp28) - (K900968867 * tmp34) -
	      (K222520933 * tmp31);
	  c_re(output[6 * ostride]) = tmp62 - tmp72;
	  c_re(output[8 * ostride]) = tmp62 + tmp72;
	  {
	       fftw_real tmp74;
	       fftw_real tmp73;
	       fftw_real tmp76;
	       fftw_real tmp75;
	       ASSERT_ALIGNED_DOUBLE;
	       tmp74 =
		   (K433883739 * tmp65) + (K781831482 * tmp68) -
		   (K974927912 * tmp71);
	       tmp73 =
		   tmp25 + (K623489801 * tmp31) - (K222520933 * tmp34) -
		   (K900968867 * tmp28);
	       c_re(output[4 * ostride]) = tmp73 - tmp74;
	       c_re(output[10 * ostride]) = tmp73 + tmp74;
	       tmp76 =
		   (K974927912 * tmp65) + (K781831482 * tmp71) +
		   (K433883739 * tmp68);
	       tmp75 =
		   tmp25 + (K623489801 * tmp34) - (K900968867 * tmp31) -
		   (K222520933 * tmp28);
	       c_re(output[12 * ostride]) = tmp75 - tmp76;
	       c_re(output[2 * ostride]) = tmp75 + tmp76;
	  }
     }
     {
	  fftw_real tmp91;
	  fftw_real tmp90;
	  fftw_real tmp103;
	  fftw_real tmp104;
	  ASSERT_ALIGNED_DOUBLE;
	  c_im(output[7 * ostride]) = tmp86 + tmp85 + tmp81 + tmp84;
	  tmp91 =
	      (K974927912 * tmp77) - (K781831482 * tmp78) -
	      (K433883739 * tmp79);
	  tmp90 =
	      (K623489801 * tmp85) + tmp84 - (K900968867 * tmp81) -
	      (K222520933 * tmp86);
	  c_im(output[5 * ostride]) = tmp90 - tmp91;
	  c_im(output[9 * ostride]) = tmp91 + tmp90;
	  {
	       fftw_real tmp88;
	       fftw_real tmp89;
	       fftw_real tmp80;
	       fftw_real tmp87;
	       ASSERT_ALIGNED_DOUBLE;
	       tmp88 =
		   (K781831482 * tmp77) + (K974927912 * tmp79) +
		   (K433883739 * tmp78);
	       tmp89 =
		   (K623489801 * tmp86) + tmp84 - (K222520933 * tmp81) -
		   (K900968867 * tmp85);
	       c_im(output[ostride]) = tmp88 + tmp89;
	       c_im(output[13 * ostride]) = tmp89 - tmp88;
	       tmp80 =
		   (K433883739 * tmp77) + (K974927912 * tmp78) -
		   (K781831482 * tmp79);
	       tmp87 =
		   (K623489801 * tmp81) + tmp84 - (K222520933 * tmp85) -
		   (K900968867 * tmp86);
	       c_im(output[3 * ostride]) = tmp80 + tmp87;
	       c_im(output[11 * ostride]) = tmp87 - tmp80;
	  }
	  c_im(output[0]) = tmp92 + tmp95 + tmp94 + tmp93;
	  tmp103 =
	      (K974927912 * tmp97) + (K433883739 * tmp99) +
	      (K781831482 * tmp98);
	  tmp104 =
	      (K623489801 * tmp95) + tmp93 - (K900968867 * tmp94) -
	      (K222520933 * tmp92);
	  c_im(output[2 * ostride]) = tmp103 + tmp104;
	  c_im(output[12 * ostride]) = tmp104 - tmp103;
	  {
	       fftw_real tmp100;
	       fftw_real tmp96;
	       fftw_real tmp102;
	       fftw_real tmp101;
	       ASSERT_ALIGNED_DOUBLE;
	       tmp100 =
		   (K781831482 * tmp97) - (K433883739 * tmp98) -
		   (K974927912 * tmp99);
	       tmp96 =
		   (K623489801 * tmp92) + tmp93 - (K222520933 * tmp94) -
		   (K900968867 * tmp95);
	       c_im(output[6 * ostride]) = tmp96 - tmp100;
	       c_im(output[8 * ostride]) = tmp100 + tmp96;
	       tmp102 =
		   (K433883739 * tmp97) + (K781831482 * tmp99) -
		   (K974927912 * tmp98);
	       tmp101 =
		   (K623489801 * tmp94) + tmp93 - (K222520933 * tmp95) -
		   (K900968867 * tmp92);
	       c_im(output[4 * ostride]) = tmp101 - tmp102;
	       c_im(output[10 * ostride]) = tmp102 + tmp101;
	  }
     }
}

fftw_codelet_desc fftwi_no_twiddle_14_desc = {
     "fftwi_no_twiddle_14",
     (void (*)()) fftwi_no_twiddle_14,
     14,
     FFTW_BACKWARD,
     FFTW_NOTW,
     320,
     0,
     (const int *) 0,
};