/*
* Copyright (c) 1997-1999 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 Sun Nov 7 20:44:46 EST 1999 */
#include <fftw-int.h>
#include <fftw.h>
/* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -hc2hc-forward 7 */
/*
* This function contains 120 FP additions, 96 FP multiplications,
* (or, 108 additions, 84 multiplications, 12 fused multiply/add),
* 25 stack variables, and 56 memory accesses
*/
static const fftw_real K222520933 = FFTW_KONST(+0.222520933956314404288902564496794759466355569);
static const fftw_real K900968867 = FFTW_KONST(+0.900968867902419126236102319507445051165919162);
static const fftw_real K623489801 = FFTW_KONST(+0.623489801858733530525004884004239810632274731);
static const fftw_real K433883739 = FFTW_KONST(+0.433883739117558120475768332848358754609990728);
static const fftw_real K974927912 = FFTW_KONST(+0.974927912181823607018131682993931217232785801);
static const fftw_real K781831482 = FFTW_KONST(+0.781831482468029808708444526674057750232334519);
/*
* Generator Id's :
* $Id: fhf_7.c,v 1.1.1.1 2006/05/12 15:14:59 veplaini Exp $
* $Id: fhf_7.c,v 1.1.1.1 2006/05/12 15:14:59 veplaini Exp $
* $Id: fhf_7.c,v 1.1.1.1 2006/05/12 15:14:59 veplaini Exp $
*/
void fftw_hc2hc_forward_7(fftw_real *A, const fftw_complex *W, int iostride, int m, int dist)
{
int i;
fftw_real *X;
fftw_real *Y;
X = A;
Y = A + (7 * iostride);
{
fftw_real tmp85;
fftw_real tmp84;
fftw_real tmp88;
fftw_real tmp78;
fftw_real tmp86;
fftw_real tmp81;
fftw_real tmp87;
fftw_real tmp82;
fftw_real tmp83;
ASSERT_ALIGNED_DOUBLE;
tmp85 = X[0];
tmp82 = X[iostride];
tmp83 = X[6 * iostride];
tmp84 = tmp82 - tmp83;
tmp88 = tmp82 + tmp83;
{
fftw_real tmp76;
fftw_real tmp77;
fftw_real tmp79;
fftw_real tmp80;
ASSERT_ALIGNED_DOUBLE;
tmp76 = X[2 * iostride];
tmp77 = X[5 * iostride];
tmp78 = tmp76 - tmp77;
tmp86 = tmp76 + tmp77;
tmp79 = X[3 * iostride];
tmp80 = X[4 * iostride];
tmp81 = tmp79 - tmp80;
tmp87 = tmp79 + tmp80;
}
Y[-3 * iostride] = (K781831482 * tmp78) - (K974927912 * tmp81) - (K433883739 * tmp84);
Y[-iostride] = -((K781831482 * tmp84) + (K974927912 * tmp78) + (K433883739 * tmp81));
Y[-2 * iostride] = (K433883739 * tmp78) + (K781831482 * tmp81) - (K974927912 * tmp84);
X[2 * iostride] = tmp85 + (K623489801 * tmp87) - (K900968867 * tmp86) - (K222520933 * tmp88);
X[iostride] = tmp85 + (K623489801 * tmp88) - (K900968867 * tmp87) - (K222520933 * tmp86);
X[3 * iostride] = tmp85 + (K623489801 * tmp86) - (K222520933 * tmp87) - (K900968867 * tmp88);
X[0] = tmp85 + tmp88 + tmp86 + tmp87;
}
X = X + dist;
Y = Y - dist;
for (i = 2; i < m; i = i + 2, X = X + dist, Y = Y - dist, W = W + 6) {
fftw_real tmp14;
fftw_real tmp66;
fftw_real tmp25;
fftw_real tmp68;
fftw_real tmp51;
fftw_real tmp63;
fftw_real tmp36;
fftw_real tmp69;
fftw_real tmp57;
fftw_real tmp64;
fftw_real tmp47;
fftw_real tmp70;
fftw_real tmp54;
fftw_real tmp65;
ASSERT_ALIGNED_DOUBLE;
tmp14 = X[0];
tmp66 = Y[-6 * iostride];
{
fftw_real tmp19;
fftw_real tmp49;
fftw_real tmp24;
fftw_real tmp50;
ASSERT_ALIGNED_DOUBLE;
{
fftw_real tmp16;
fftw_real tmp18;
fftw_real tmp15;
fftw_real tmp17;
ASSERT_ALIGNED_DOUBLE;
tmp16 = X[iostride];
tmp18 = Y[-5 * iostride];
tmp15 = c_re(W[0]);
tmp17 = c_im(W[0]);
tmp19 = (tmp15 * tmp16) - (tmp17 * tmp18);
tmp49 = (tmp17 * tmp16) + (tmp15 * tmp18);
}
{
fftw_real tmp21;
fftw_real tmp23;
fftw_real tmp20;
fftw_real tmp22;
ASSERT_ALIGNED_DOUBLE;
tmp21 = X[6 * iostride];
tmp23 = Y[0];
tmp20 = c_re(W[5]);
tmp22 = c_im(W[5]);
tmp24 = (tmp20 * tmp21) - (tmp22 * tmp23);
tmp50 = (tmp22 * tmp21) + (tmp20 * tmp23);
}
tmp25 = tmp19 + tmp24;
tmp68 = tmp24 - tmp19;
tmp51 = tmp49 - tmp50;
tmp63 = tmp49 + tmp50;
}
{
fftw_real tmp30;
fftw_real tmp55;
fftw_real tmp35;
fftw_real tmp56;
ASSERT_ALIGNED_DOUBLE;
{
fftw_real tmp27;
fftw_real tmp29;
fftw_real tmp26;
fftw_real tmp28;
ASSERT_ALIGNED_DOUBLE;
tmp27 = X[2 * iostride];
tmp29 = Y[-4 * iostride];
tmp26 = c_re(W[1]);
tmp28 = c_im(W[1]);
tmp30 = (tmp26 * tmp27) - (tmp28 * tmp29);
tmp55 = (tmp28 * tmp27) + (tmp26 * tmp29);
}
{
fftw_real tmp32;
fftw_real tmp34;
fftw_real tmp31;
fftw_real tmp33;
ASSERT_ALIGNED_DOUBLE;
tmp32 = X[5 * iostride];
tmp34 = Y[-iostride];
tmp31 = c_re(W[4]);
tmp33 = c_im(W[4]);
tmp35 = (tmp31 * tmp32) - (tmp33 * tmp34);
tmp56 = (tmp33 * tmp32) + (tmp31 * tmp34);
}
tmp36 = tmp30 + tmp35;
tmp69 = tmp35 - tmp30;
tmp57 = tmp55 - tmp56;
tmp64 = tmp55 + tmp56;
}
{
fftw_real tmp41;
fftw_real tmp52;
fftw_real tmp46;
fftw_real tmp53;
ASSERT_ALIGNED_DOUBLE;
{
fftw_real tmp38;
fftw_real tmp40;
fftw_real tmp37;
fftw_real tmp39;
ASSERT_ALIGNED_DOUBLE;
tmp38 = X[3 * iostride];
tmp40 = Y[-3 * iostride];
tmp37 = c_re(W[2]);
tmp39 = c_im(W[2]);
tmp41 = (tmp37 * tmp38) - (tmp39 * tmp40);
tmp52 = (tmp39 * tmp38) + (tmp37 * tmp40);
}
{
fftw_real tmp43;
fftw_real tmp45;
fftw_real tmp42;
fftw_real tmp44;
ASSERT_ALIGNED_DOUBLE;
tmp43 = X[4 * iostride];
tmp45 = Y[-2 * iostride];
tmp42 = c_re(W[3]);
tmp44 = c_im(W[3]);
tmp46 = (tmp42 * tmp43) - (tmp44 * tmp45);
tmp53 = (tmp44 * tmp43) + (tmp42 * tmp45);
}
tmp47 = tmp41 + tmp46;
tmp70 = tmp46 - tmp41;
tmp54 = tmp52 - tmp53;
tmp65 = tmp52 + tmp53;
}
{
fftw_real tmp60;
fftw_real tmp59;
fftw_real tmp73;
fftw_real tmp72;
ASSERT_ALIGNED_DOUBLE;
X[0] = tmp14 + tmp25 + tmp36 + tmp47;
tmp60 = (K781831482 * tmp51) + (K974927912 * tmp57) + (K433883739 * tmp54);
tmp59 = tmp14 + (K623489801 * tmp25) - (K900968867 * tmp47) - (K222520933 * tmp36);
Y[-6 * iostride] = tmp59 - tmp60;
X[iostride] = tmp59 + tmp60;
{
fftw_real tmp62;
fftw_real tmp61;
fftw_real tmp58;
fftw_real tmp48;
ASSERT_ALIGNED_DOUBLE;
tmp62 = (K433883739 * tmp51) + (K974927912 * tmp54) - (K781831482 * tmp57);
tmp61 = tmp14 + (K623489801 * tmp36) - (K222520933 * tmp47) - (K900968867 * tmp25);
Y[-4 * iostride] = tmp61 - tmp62;
X[3 * iostride] = tmp61 + tmp62;
tmp58 = (K974927912 * tmp51) - (K781831482 * tmp54) - (K433883739 * tmp57);
tmp48 = tmp14 + (K623489801 * tmp47) - (K900968867 * tmp36) - (K222520933 * tmp25);
Y[-5 * iostride] = tmp48 - tmp58;
X[2 * iostride] = tmp48 + tmp58;
}
Y[0] = tmp63 + tmp64 + tmp65 + tmp66;
tmp73 = (K974927912 * tmp68) - (K781831482 * tmp70) - (K433883739 * tmp69);
tmp72 = (K623489801 * tmp65) + tmp66 - (K900968867 * tmp64) - (K222520933 * tmp63);
X[5 * iostride] = -(tmp72 - tmp73);
Y[-2 * iostride] = tmp73 + tmp72;
{
fftw_real tmp75;
fftw_real tmp74;
fftw_real tmp71;
fftw_real tmp67;
ASSERT_ALIGNED_DOUBLE;
tmp75 = (K433883739 * tmp68) + (K974927912 * tmp70) - (K781831482 * tmp69);
tmp74 = (K623489801 * tmp64) + tmp66 - (K222520933 * tmp65) - (K900968867 * tmp63);
X[4 * iostride] = -(tmp74 - tmp75);
Y[-3 * iostride] = tmp75 + tmp74;
tmp71 = (K781831482 * tmp68) + (K974927912 * tmp69) + (K433883739 * tmp70);
tmp67 = (K623489801 * tmp63) + tmp66 - (K900968867 * tmp65) - (K222520933 * tmp64);
X[6 * iostride] = -(tmp67 - tmp71);
Y[-iostride] = tmp71 + tmp67;
}
}
}
if (i == m) {
fftw_real tmp1;
fftw_real tmp10;
fftw_real tmp13;
fftw_real tmp4;
fftw_real tmp11;
fftw_real tmp7;
fftw_real tmp12;
fftw_real tmp8;
fftw_real tmp9;
ASSERT_ALIGNED_DOUBLE;
tmp1 = X[0];
tmp8 = X[iostride];
tmp9 = X[6 * iostride];
tmp10 = tmp8 - tmp9;
tmp13 = tmp8 + tmp9;
{
fftw_real tmp2;
fftw_real tmp3;
fftw_real tmp5;
fftw_real tmp6;
ASSERT_ALIGNED_DOUBLE;
tmp2 = X[2 * iostride];
tmp3 = X[5 * iostride];
tmp4 = tmp2 - tmp3;
tmp11 = tmp2 + tmp3;
tmp5 = X[3 * iostride];
tmp6 = X[4 * iostride];
tmp7 = tmp5 - tmp6;
tmp12 = tmp5 + tmp6;
}
Y[0] = -((K781831482 * tmp11) + (K974927912 * tmp12) + (K433883739 * tmp13));
Y[-iostride] = (K781831482 * tmp12) - (K974927912 * tmp13) - (K433883739 * tmp11);
Y[-2 * iostride] = (K974927912 * tmp11) - (K781831482 * tmp13) - (K433883739 * tmp12);
X[iostride] = tmp1 + (K222520933 * tmp10) - (K623489801 * tmp7) - (K900968867 * tmp4);
X[2 * iostride] = tmp1 + (K900968867 * tmp7) - (K623489801 * tmp10) - (K222520933 * tmp4);
X[3 * iostride] = tmp1 + tmp4 - (tmp7 + tmp10);
X[0] = tmp1 + (K623489801 * tmp4) + (K222520933 * tmp7) + (K900968867 * tmp10);
}
}
static const int twiddle_order[] =
{1, 2, 3, 4, 5, 6};
fftw_codelet_desc fftw_hc2hc_forward_7_desc =
{
"fftw_hc2hc_forward_7",
(void (*)()) fftw_hc2hc_forward_7,
7,
FFTW_FORWARD,
FFTW_HC2HC,
157,
6,
twiddle_order,
};