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/*
* 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 Tue May 18 13:55:31 EDT 1999 */
#include <ports/fftw-int.h>
#include <ports/fftw.h>
/* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -hc2hc-forward 6 */
/*
* This function contains 72 FP additions, 36 FP multiplications,
* (or, 54 additions, 18 multiplications, 18 fused multiply/add),
* 23 stack variables, and 48 memory accesses
*/
static const fftw_real K500000000 = FFTW_KONST(+0.500000000000000000000000000000000000000000000);
static const fftw_real K866025403 = FFTW_KONST(+0.866025403784438646763723170752936183471402627);
/*
* Generator Id's :
* $Id: fhf_6.c,v 1.1.1.1 2002-03-29 14:12:58 pj Exp $
* $Id: fhf_6.c,v 1.1.1.1 2002-03-29 14:12:58 pj Exp $
* $Id: fhf_6.c,v 1.1.1.1 2002-03-29 14:12:58 pj Exp $
*/
void fftw_hc2hc_forward_6(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 + (6 * iostride);
{
fftw_real tmp71;
fftw_real tmp81;
fftw_real tmp77;
fftw_real tmp79;
fftw_real tmp74;
fftw_real tmp80;
fftw_real tmp69;
fftw_real tmp70;
fftw_real tmp78;
fftw_real tmp82;
ASSERT_ALIGNED_DOUBLE();
tmp69 = X[0];
tmp70 = X[3 * iostride];
tmp71 = tmp69 - tmp70;
tmp81 = tmp69 + tmp70;
{
fftw_real tmp75;
fftw_real tmp76;
fftw_real tmp72;
fftw_real tmp73;
ASSERT_ALIGNED_DOUBLE();
tmp75 = X[4 * iostride];
tmp76 = X[iostride];
tmp77 = tmp75 - tmp76;
tmp79 = tmp75 + tmp76;
tmp72 = X[2 * iostride];
tmp73 = X[5 * iostride];
tmp74 = tmp72 - tmp73;
tmp80 = tmp72 + tmp73;
}
Y[-iostride] = K866025403 * (tmp77 - tmp74);
tmp78 = tmp74 + tmp77;
X[iostride] = tmp71 - (K500000000 * tmp78);
X[3 * iostride] = tmp71 + tmp78;
Y[-2 * iostride] = -(K866025403 * (tmp79 - tmp80));
tmp82 = tmp80 + tmp79;
X[2 * iostride] = tmp81 - (K500000000 * tmp82);
X[0] = tmp81 + tmp82;
}
X = X + dist;
Y = Y - dist;
for (i = 2; i < m; i = i + 2, X = X + dist, Y = Y - dist, W = W + 5) {
fftw_real tmp19;
fftw_real tmp43;
fftw_real tmp62;
fftw_real tmp66;
fftw_real tmp41;
fftw_real tmp45;
fftw_real tmp53;
fftw_real tmp57;
fftw_real tmp30;
fftw_real tmp44;
fftw_real tmp50;
fftw_real tmp56;
ASSERT_ALIGNED_DOUBLE();
{
fftw_real tmp13;
fftw_real tmp61;
fftw_real tmp18;
fftw_real tmp60;
ASSERT_ALIGNED_DOUBLE();
tmp13 = X[0];
tmp61 = Y[-5 * iostride];
{
fftw_real tmp15;
fftw_real tmp17;
fftw_real tmp14;
fftw_real tmp16;
ASSERT_ALIGNED_DOUBLE();
tmp15 = X[3 * iostride];
tmp17 = Y[-2 * iostride];
tmp14 = c_re(W[2]);
tmp16 = c_im(W[2]);
tmp18 = (tmp14 * tmp15) - (tmp16 * tmp17);
tmp60 = (tmp16 * tmp15) + (tmp14 * tmp17);
}
tmp19 = tmp13 - tmp18;
tmp43 = tmp13 + tmp18;
tmp62 = tmp60 + tmp61;
tmp66 = tmp61 - tmp60;
}
{
fftw_real tmp35;
fftw_real tmp51;
fftw_real tmp40;
fftw_real tmp52;
ASSERT_ALIGNED_DOUBLE();
{
fftw_real tmp32;
fftw_real tmp34;
fftw_real tmp31;
fftw_real tmp33;
ASSERT_ALIGNED_DOUBLE();
tmp32 = X[4 * iostride];
tmp34 = Y[-iostride];
tmp31 = c_re(W[3]);
tmp33 = c_im(W[3]);
tmp35 = (tmp31 * tmp32) - (tmp33 * tmp34);
tmp51 = (tmp33 * tmp32) + (tmp31 * tmp34);
}
{
fftw_real tmp37;
fftw_real tmp39;
fftw_real tmp36;
fftw_real tmp38;
ASSERT_ALIGNED_DOUBLE();
tmp37 = X[iostride];
tmp39 = Y[-4 * iostride];
tmp36 = c_re(W[0]);
tmp38 = c_im(W[0]);
tmp40 = (tmp36 * tmp37) - (tmp38 * tmp39);
tmp52 = (tmp38 * tmp37) + (tmp36 * tmp39);
}
tmp41 = tmp35 - tmp40;
tmp45 = tmp35 + tmp40;
tmp53 = tmp51 + tmp52;
tmp57 = tmp51 - tmp52;
}
{
fftw_real tmp24;
fftw_real tmp48;
fftw_real tmp29;
fftw_real tmp49;
ASSERT_ALIGNED_DOUBLE();
{
fftw_real tmp21;
fftw_real tmp23;
fftw_real tmp20;
fftw_real tmp22;
ASSERT_ALIGNED_DOUBLE();
tmp21 = X[2 * iostride];
tmp23 = Y[-3 * iostride];
tmp20 = c_re(W[1]);
tmp22 = c_im(W[1]);
tmp24 = (tmp20 * tmp21) - (tmp22 * tmp23);
tmp48 = (tmp22 * tmp21) + (tmp20 * tmp23);
}
{
fftw_real tmp26;
fftw_real tmp28;
fftw_real tmp25;
fftw_real tmp27;
ASSERT_ALIGNED_DOUBLE();
tmp26 = X[5 * iostride];
tmp28 = Y[0];
tmp25 = c_re(W[4]);
tmp27 = c_im(W[4]);
tmp29 = (tmp25 * tmp26) - (tmp27 * tmp28);
tmp49 = (tmp27 * tmp26) + (tmp25 * tmp28);
}
tmp30 = tmp24 - tmp29;
tmp44 = tmp24 + tmp29;
tmp50 = tmp48 + tmp49;
tmp56 = tmp48 - tmp49;
}
{
fftw_real tmp58;
fftw_real tmp42;
fftw_real tmp55;
fftw_real tmp68;
fftw_real tmp65;
fftw_real tmp67;
ASSERT_ALIGNED_DOUBLE();
tmp58 = K866025403 * (tmp56 - tmp57);
tmp42 = tmp30 + tmp41;
tmp55 = tmp19 - (K500000000 * tmp42);
Y[-3 * iostride] = tmp19 + tmp42;
X[iostride] = tmp55 + tmp58;
Y[-5 * iostride] = tmp55 - tmp58;
tmp68 = K866025403 * (tmp41 - tmp30);
tmp65 = tmp56 + tmp57;
tmp67 = tmp66 - (K500000000 * tmp65);
X[3 * iostride] = -(tmp65 + tmp66);
Y[-iostride] = tmp68 + tmp67;
X[5 * iostride] = -(tmp67 - tmp68);
}
{
fftw_real tmp54;
fftw_real tmp46;
fftw_real tmp47;
fftw_real tmp63;
fftw_real tmp59;
fftw_real tmp64;
ASSERT_ALIGNED_DOUBLE();
tmp54 = K866025403 * (tmp50 - tmp53);
tmp46 = tmp44 + tmp45;
tmp47 = tmp43 - (K500000000 * tmp46);
X[0] = tmp43 + tmp46;
Y[-4 * iostride] = tmp47 + tmp54;
X[2 * iostride] = tmp47 - tmp54;
tmp63 = K866025403 * (tmp45 - tmp44);
tmp59 = tmp50 + tmp53;
tmp64 = tmp62 - (K500000000 * tmp59);
Y[0] = tmp59 + tmp62;
Y[-2 * iostride] = tmp64 - tmp63;
X[4 * iostride] = -(tmp63 + tmp64);
}
}
if (i == m) {
fftw_real tmp1;
fftw_real tmp11;
fftw_real tmp4;
fftw_real tmp9;
fftw_real tmp8;
fftw_real tmp10;
fftw_real tmp5;
fftw_real tmp12;
ASSERT_ALIGNED_DOUBLE();
tmp1 = X[0];
tmp11 = X[3 * iostride];
{
fftw_real tmp2;
fftw_real tmp3;
fftw_real tmp6;
fftw_real tmp7;
ASSERT_ALIGNED_DOUBLE();
tmp2 = X[2 * iostride];
tmp3 = X[4 * iostride];
tmp4 = tmp2 - tmp3;
tmp9 = K866025403 * (tmp2 + tmp3);
tmp6 = X[iostride];
tmp7 = X[5 * iostride];
tmp8 = K866025403 * (tmp6 - tmp7);
tmp10 = tmp6 + tmp7;
}
X[iostride] = tmp1 - tmp4;
tmp5 = tmp1 + (K500000000 * tmp4);
X[2 * iostride] = tmp5 - tmp8;
X[0] = tmp5 + tmp8;
Y[-iostride] = tmp11 - tmp10;
tmp12 = (K500000000 * tmp10) + tmp11;
Y[0] = -(tmp9 + tmp12);
Y[-2 * iostride] = tmp9 - tmp12;
}
}
static const int twiddle_order[] =
{1, 2, 3, 4, 5};
fftw_codelet_desc fftw_hc2hc_forward_6_desc =
{
"fftw_hc2hc_forward_6",
(void (*)()) fftw_hc2hc_forward_6,
6,
FFTW_FORWARD,
FFTW_HC2HC,
135,
5,
twiddle_order,
};