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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 13:55:07 EDT 1999 */
#include <fftw-int.h>
#include <fftw.h>
/* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -hc2real 12 */
/*
* This function contains 38 FP additions, 10 FP multiplications,
* (or, 34 additions, 6 multiplications, 4 fused multiply/add),
* 22 stack variables, and 24 memory accesses
*/
static const fftw_real K1_732050807 = FFTW_KONST(+1.732050807568877293527446341505872366942805254);
static const fftw_real K2_000000000 = FFTW_KONST(+2.000000000000000000000000000000000000000000000);
/*
* Generator Id's :
* $Id: fcr_12.c,v 1.2 2003-03-24 11:14:55 pj Exp $
* $Id: fcr_12.c,v 1.2 2003-03-24 11:14:55 pj Exp $
* $Id: fcr_12.c,v 1.2 2003-03-24 11:14:55 pj Exp $
*/
void fftw_hc2real_12(const fftw_real *real_input, const fftw_real *imag_input, fftw_real *output, int real_istride, int imag_istride, int ostride)
{
fftw_real tmp8;
fftw_real tmp11;
fftw_real tmp22;
fftw_real tmp36;
fftw_real tmp32;
fftw_real tmp33;
fftw_real tmp25;
fftw_real tmp37;
fftw_real tmp3;
fftw_real tmp27;
fftw_real tmp16;
fftw_real tmp6;
fftw_real tmp28;
fftw_real tmp20;
ASSERT_ALIGNED_DOUBLE();
{
fftw_real tmp9;
fftw_real tmp10;
fftw_real tmp23;
fftw_real tmp24;
ASSERT_ALIGNED_DOUBLE();
tmp8 = real_input[3 * real_istride];
tmp9 = real_input[5 * real_istride];
tmp10 = real_input[real_istride];
tmp11 = tmp9 + tmp10;
tmp22 = (K2_000000000 * tmp8) - tmp11;
tmp36 = K1_732050807 * (tmp9 - tmp10);
tmp32 = imag_input[3 * imag_istride];
tmp23 = imag_input[5 * imag_istride];
tmp24 = imag_input[imag_istride];
tmp33 = tmp23 + tmp24;
tmp25 = K1_732050807 * (tmp23 - tmp24);
tmp37 = (K2_000000000 * tmp32) + tmp33;
}
{
fftw_real tmp15;
fftw_real tmp1;
fftw_real tmp2;
fftw_real tmp13;
fftw_real tmp14;
ASSERT_ALIGNED_DOUBLE();
tmp14 = imag_input[4 * imag_istride];
tmp15 = K1_732050807 * tmp14;
tmp1 = real_input[0];
tmp2 = real_input[4 * real_istride];
tmp13 = tmp1 - tmp2;
tmp3 = tmp1 + (K2_000000000 * tmp2);
tmp27 = tmp13 - tmp15;
tmp16 = tmp13 + tmp15;
}
{
fftw_real tmp19;
fftw_real tmp4;
fftw_real tmp5;
fftw_real tmp17;
fftw_real tmp18;
ASSERT_ALIGNED_DOUBLE();
tmp18 = imag_input[2 * imag_istride];
tmp19 = K1_732050807 * tmp18;
tmp4 = real_input[6 * real_istride];
tmp5 = real_input[2 * real_istride];
tmp17 = tmp4 - tmp5;
tmp6 = tmp4 + (K2_000000000 * tmp5);
tmp28 = tmp17 + tmp19;
tmp20 = tmp17 - tmp19;
}
{
fftw_real tmp7;
fftw_real tmp12;
fftw_real tmp39;
fftw_real tmp40;
ASSERT_ALIGNED_DOUBLE();
tmp7 = tmp3 + tmp6;
tmp12 = K2_000000000 * (tmp8 + tmp11);
output[6 * ostride] = tmp7 - tmp12;
output[0] = tmp7 + tmp12;
{
fftw_real tmp31;
fftw_real tmp34;
fftw_real tmp21;
fftw_real tmp26;
ASSERT_ALIGNED_DOUBLE();
tmp31 = tmp3 - tmp6;
tmp34 = K2_000000000 * (tmp32 - tmp33);
output[9 * ostride] = tmp31 - tmp34;
output[3 * ostride] = tmp31 + tmp34;
tmp21 = tmp16 + tmp20;
tmp26 = tmp22 - tmp25;
output[2 * ostride] = tmp21 - tmp26;
output[8 * ostride] = tmp21 + tmp26;
}
tmp39 = tmp16 - tmp20;
tmp40 = tmp37 - tmp36;
output[5 * ostride] = tmp39 - tmp40;
output[11 * ostride] = tmp39 + tmp40;
{
fftw_real tmp35;
fftw_real tmp38;
fftw_real tmp29;
fftw_real tmp30;
ASSERT_ALIGNED_DOUBLE();
tmp35 = tmp27 - tmp28;
tmp38 = tmp36 + tmp37;
output[ostride] = tmp35 - tmp38;
output[7 * ostride] = tmp35 + tmp38;
tmp29 = tmp27 + tmp28;
tmp30 = tmp22 + tmp25;
output[10 * ostride] = tmp29 - tmp30;
output[4 * ostride] = tmp29 + tmp30;
}
}
}
fftw_codelet_desc fftw_hc2real_12_desc =
{
"fftw_hc2real_12",
(void (*)()) fftw_hc2real_12,
12,
FFTW_BACKWARD,
FFTW_HC2REAL,
279,
0,
(const int *) 0,
};