fn_11.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 02:05:38 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 -notwiddle 11 */

/*
 * This function contains 140 FP additions, 100 FP multiplications,
 * (or, 140 additions, 100 multiplications, 0 fused multiply/add),
 * 30 stack variables, and 44 memory accesses
 */
static const fftw_real K142314838 =
FFTW_KONST(+0.142314838273285140443792668616369668791051361);
static const fftw_real K654860733 =
FFTW_KONST(+0.654860733945285064056925072466293553183791199);
static const fftw_real K959492973 =
FFTW_KONST(+0.959492973614497389890368057066327699062454848);
static const fftw_real K415415013 =
FFTW_KONST(+0.415415013001886425529274149229623203524004910);
static const fftw_real K841253532 =
FFTW_KONST(+0.841253532831181168861811648919367717513292498);
static const fftw_real K909631995 =
FFTW_KONST(+0.909631995354518371411715383079028460060241051);
static const fftw_real K281732556 =
FFTW_KONST(+0.281732556841429697711417915346616899035777899);
static const fftw_real K755749574 =
FFTW_KONST(+0.755749574354258283774035843972344420179717445);
static const fftw_real K989821441 =
FFTW_KONST(+0.989821441880932732376092037776718787376519372);
static const fftw_real K540640817 =
FFTW_KONST(+0.540640817455597582107635954318691695431770608);

/*
 * 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 fftw_no_twiddle_11(const fftw_complex *input, fftw_complex *output,
			int istride, int ostride)
{
     fftw_real tmp1;
     fftw_real tmp50;
     fftw_real tmp4;
     fftw_real tmp42;
     fftw_real tmp20;
     fftw_real tmp53;
     fftw_real tmp29;
     fftw_real tmp49;
     fftw_real tmp7;
     fftw_real tmp46;
     fftw_real tmp10;
     fftw_real tmp43;
     fftw_real tmp23;
     fftw_real tmp52;
     fftw_real tmp13;
     fftw_real tmp45;
     fftw_real tmp32;
     fftw_real tmp48;
     fftw_real tmp26;
     fftw_real tmp51;
     fftw_real tmp16;
     fftw_real tmp44;
     ASSERT_ALIGNED_DOUBLE;
     {
	  fftw_real tmp2;
	  fftw_real tmp3;
	  fftw_real tmp18;
	  fftw_real tmp19;
	  ASSERT_ALIGNED_DOUBLE;
	  tmp1 = c_re(input[0]);
	  tmp50 = c_im(input[0]);
	  tmp2 = c_re(input[istride]);
	  tmp3 = c_re(input[10 * istride]);
	  tmp4 = tmp2 + tmp3;
	  tmp42 = tmp3 - tmp2;
	  tmp18 = c_im(input[istride]);
	  tmp19 = c_im(input[10 * istride]);
	  tmp20 = tmp18 - tmp19;
	  tmp53 = tmp18 + tmp19;
	  {
	       fftw_real tmp27;
	       fftw_real tmp28;
	       fftw_real tmp5;
	       fftw_real tmp6;
	       ASSERT_ALIGNED_DOUBLE;
	       tmp27 = c_im(input[2 * istride]);
	       tmp28 = c_im(input[9 * istride]);
	       tmp29 = tmp27 - tmp28;
	       tmp49 = tmp27 + tmp28;
	       tmp5 = c_re(input[2 * istride]);
	       tmp6 = c_re(input[9 * istride]);
	       tmp7 = tmp5 + tmp6;
	       tmp46 = tmp6 - tmp5;
	  }
     }
     {
	  fftw_real tmp8;
	  fftw_real tmp9;
	  fftw_real tmp30;
	  fftw_real tmp31;
	  ASSERT_ALIGNED_DOUBLE;
	  tmp8 = c_re(input[3 * istride]);
	  tmp9 = c_re(input[8 * istride]);
	  tmp10 = tmp8 + tmp9;
	  tmp43 = tmp9 - tmp8;
	  {
	       fftw_real tmp21;
	       fftw_real tmp22;
	       fftw_real tmp11;
	       fftw_real tmp12;
	       ASSERT_ALIGNED_DOUBLE;
	       tmp21 = c_im(input[3 * istride]);
	       tmp22 = c_im(input[8 * istride]);
	       tmp23 = tmp21 - tmp22;
	       tmp52 = tmp21 + tmp22;
	       tmp11 = c_re(input[4 * istride]);
	       tmp12 = c_re(input[7 * istride]);
	       tmp13 = tmp11 + tmp12;
	       tmp45 = tmp12 - tmp11;
	  }
	  tmp30 = c_im(input[4 * istride]);
	  tmp31 = c_im(input[7 * istride]);
	  tmp32 = tmp30 - tmp31;
	  tmp48 = tmp30 + tmp31;
	  {
	       fftw_real tmp24;
	       fftw_real tmp25;
	       fftw_real tmp14;
	       fftw_real tmp15;
	       ASSERT_ALIGNED_DOUBLE;
	       tmp24 = c_im(input[5 * istride]);
	       tmp25 = c_im(input[6 * istride]);
	       tmp26 = tmp24 - tmp25;
	       tmp51 = tmp24 + tmp25;
	       tmp14 = c_re(input[5 * istride]);
	       tmp15 = c_re(input[6 * istride]);
	       tmp16 = tmp14 + tmp15;
	       tmp44 = tmp15 - tmp14;
	  }
     }
     {
	  fftw_real tmp35;
	  fftw_real tmp34;
	  fftw_real tmp59;
	  fftw_real tmp60;
	  ASSERT_ALIGNED_DOUBLE;
	  c_re(output[0]) = tmp1 + tmp4 + tmp7 + tmp10 + tmp13 + tmp16;
	  {
	       fftw_real tmp41;
	       fftw_real tmp40;
	       fftw_real tmp37;
	       fftw_real tmp36;
	       ASSERT_ALIGNED_DOUBLE;
	       tmp41 =
		   (K540640817 * tmp20) + (K989821441 * tmp23) +
		   (K755749574 * tmp32) + (K281732556 * tmp26) +
		   (K909631995 * tmp29);
	       tmp40 =
		   tmp1 + (K841253532 * tmp4) + (K415415013 * tmp7) -
		   (K959492973 * tmp16) - (K654860733 * tmp13) -
		   (K142314838 * tmp10);
	       c_re(output[10 * ostride]) = tmp40 - tmp41;
	       c_re(output[ostride]) = tmp40 + tmp41;
	       tmp37 =
		   (K755749574 * tmp20) + (K540640817 * tmp23) +
		   (K281732556 * tmp32) - (K989821441 * tmp29) -
		   (K909631995 * tmp26);
	       tmp36 =
		   tmp1 + (K841253532 * tmp10) + (K415415013 * tmp16) -
		   (K959492973 * tmp13) - (K142314838 * tmp7) -
		   (K654860733 * tmp4);
	       c_re(output[7 * ostride]) = tmp36 - tmp37;
	       c_re(output[4 * ostride]) = tmp36 + tmp37;
	  }
	  tmp35 =
	      (K989821441 * tmp20) + (K540640817 * tmp32) +
	      (K755749574 * tmp26) - (K281732556 * tmp29) -
	      (K909631995 * tmp23);
	  tmp34 =
	      tmp1 + (K415415013 * tmp10) + (K841253532 * tmp13) -
	      (K654860733 * tmp16) - (K959492973 * tmp7) -
	      (K142314838 * tmp4);
	  c_re(output[8 * ostride]) = tmp34 - tmp35;
	  c_re(output[3 * ostride]) = tmp34 + tmp35;
	  {
	       fftw_real tmp39;
	       fftw_real tmp38;
	       fftw_real tmp33;
	       fftw_real tmp17;
	       ASSERT_ALIGNED_DOUBLE;
	       tmp39 =
		   (K909631995 * tmp20) + (K755749574 * tmp29) -
		   (K540640817 * tmp26) - (K989821441 * tmp32) -
		   (K281732556 * tmp23);
	       tmp38 =
		   tmp1 + (K415415013 * tmp4) + (K841253532 * tmp16) -
		   (K142314838 * tmp13) - (K959492973 * tmp10) -
		   (K654860733 * tmp7);
	       c_re(output[9 * ostride]) = tmp38 - tmp39;
	       c_re(output[2 * ostride]) = tmp38 + tmp39;
	       tmp33 =
		   (K281732556 * tmp20) + (K755749574 * tmp23) +
		   (K989821441 * tmp26) - (K540640817 * tmp29) -
		   (K909631995 * tmp32);
	       tmp17 =
		   tmp1 + (K841253532 * tmp7) + (K415415013 * tmp13) -
		   (K142314838 * tmp16) - (K654860733 * tmp10) -
		   (K959492973 * tmp4);
	       c_re(output[6 * ostride]) = tmp17 - tmp33;
	       c_re(output[5 * ostride]) = tmp17 + tmp33;
	  }
	  c_im(output[0]) = tmp53 + tmp52 + tmp48 + tmp51 + tmp49 + tmp50;
	  {
	       fftw_real tmp47;
	       fftw_real tmp54;
	       fftw_real tmp57;
	       fftw_real tmp58;
	       ASSERT_ALIGNED_DOUBLE;
	       tmp47 =
		   (K281732556 * tmp42) + (K755749574 * tmp43) +
		   (K989821441 * tmp44) - (K909631995 * tmp45) -
		   (K540640817 * tmp46);
	       tmp54 =
		   (K415415013 * tmp48) + (K841253532 * tmp49) + tmp50 -
		   (K142314838 * tmp51) - (K654860733 * tmp52) -
		   (K959492973 * tmp53);
	       c_im(output[5 * ostride]) = tmp47 + tmp54;
	       c_im(output[6 * ostride]) = tmp54 - tmp47;
	       tmp57 =
		   (K540640817 * tmp42) + (K909631995 * tmp46) +
		   (K989821441 * tmp43) + (K755749574 * tmp45) +
		   (K281732556 * tmp44);
	       tmp58 =
		   (K841253532 * tmp53) + (K415415013 * tmp49) + tmp50 -
		   (K959492973 * tmp51) - (K654860733 * tmp48) -
		   (K142314838 * tmp52);
	       c_im(output[ostride]) = tmp57 + tmp58;
	       c_im(output[10 * ostride]) = tmp58 - tmp57;
	  }
	  tmp59 =
	      (K909631995 * tmp42) + (K755749574 * tmp46) -
	      (K540640817 * tmp44) - (K989821441 * tmp45) -
	      (K281732556 * tmp43);
	  tmp60 =
	      (K415415013 * tmp53) + (K841253532 * tmp51) + tmp50 -
	      (K654860733 * tmp49) - (K142314838 * tmp48) -
	      (K959492973 * tmp52);
	  c_im(output[2 * ostride]) = tmp59 + tmp60;
	  c_im(output[9 * ostride]) = tmp60 - tmp59;
	  {
	       fftw_real tmp55;
	       fftw_real tmp56;
	       fftw_real tmp61;
	       fftw_real tmp62;
	       ASSERT_ALIGNED_DOUBLE;
	       tmp55 =
		   (K989821441 * tmp42) + (K540640817 * tmp45) +
		   (K755749574 * tmp44) - (K909631995 * tmp43) -
		   (K281732556 * tmp46);
	       tmp56 =
		   (K415415013 * tmp52) + (K841253532 * tmp48) + tmp50 -
		   (K959492973 * tmp49) - (K654860733 * tmp51) -
		   (K142314838 * tmp53);
	       c_im(output[3 * ostride]) = tmp55 + tmp56;
	       c_im(output[8 * ostride]) = tmp56 - tmp55;
	       tmp61 =
		   (K755749574 * tmp42) + (K540640817 * tmp43) +
		   (K281732556 * tmp45) - (K909631995 * tmp44) -
		   (K989821441 * tmp46);
	       tmp62 =
		   (K841253532 * tmp52) + (K415415013 * tmp51) + tmp50 -
		   (K142314838 * tmp49) - (K959492973 * tmp48) -
		   (K654860733 * tmp53);
	       c_im(output[4 * ostride]) = tmp61 + tmp62;
	       c_im(output[7 * ostride]) = tmp62 - tmp61;
	  }
     }
}

fftw_codelet_desc fftw_no_twiddle_11_desc = {
     "fftw_no_twiddle_11",
     (void (*)()) fftw_no_twiddle_11,
     11,
     FFTW_FORWARD,
     FFTW_NOTW,
     243,
     0,
     (const int *) 0,
};