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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 13:55:59 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-backward 5 */
/*
* This function contains 64 FP additions, 42 FP multiplications,
* (or, 42 additions, 20 multiplications, 22 fused multiply/add),
* 25 stack variables, and 40 memory accesses
*/
static const fftw_real K250000000 = FFTW_KONST(+0.250000000000000000000000000000000000000000000);
static const fftw_real K559016994 = FFTW_KONST(+0.559016994374947424102293417182819058860154590);
static const fftw_real K951056516 = FFTW_KONST(+0.951056516295153572116439333379382143405698634);
static const fftw_real K587785252 = FFTW_KONST(+0.587785252292473129168705954639072768597652438);
static const fftw_real K2_000000000 = FFTW_KONST(+2.000000000000000000000000000000000000000000000);
static const fftw_real K500000000 = FFTW_KONST(+0.500000000000000000000000000000000000000000000);
static const fftw_real K1_118033988 = FFTW_KONST(+1.118033988749894848204586834365638117720309180);
static const fftw_real K1_175570504 = FFTW_KONST(+1.175570504584946258337411909278145537195304875);
static const fftw_real K1_902113032 = FFTW_KONST(+1.902113032590307144232878666758764286811397268);
/*
* Generator Id's :
* $Id: fhb_5.c,v 1.1.1.1 2002-03-29 14:12:58 pj Exp $
* $Id: fhb_5.c,v 1.1.1.1 2002-03-29 14:12:58 pj Exp $
* $Id: fhb_5.c,v 1.1.1.1 2002-03-29 14:12:58 pj Exp $
*/
void fftw_hc2hc_backward_5(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 + (5 * iostride);
{
fftw_real tmp70;
fftw_real tmp72;
fftw_real tmp61;
fftw_real tmp64;
fftw_real tmp65;
fftw_real tmp66;
fftw_real tmp71;
fftw_real tmp67;
ASSERT_ALIGNED_DOUBLE();
{
fftw_real tmp68;
fftw_real tmp69;
fftw_real tmp62;
fftw_real tmp63;
ASSERT_ALIGNED_DOUBLE();
tmp68 = Y[-iostride];
tmp69 = Y[-2 * iostride];
tmp70 = (K1_902113032 * tmp68) + (K1_175570504 * tmp69);
tmp72 = (K1_902113032 * tmp69) - (K1_175570504 * tmp68);
tmp61 = X[0];
tmp62 = X[iostride];
tmp63 = X[2 * iostride];
tmp64 = tmp62 + tmp63;
tmp65 = K1_118033988 * (tmp62 - tmp63);
tmp66 = tmp61 - (K500000000 * tmp64);
}
X[0] = tmp61 + (K2_000000000 * tmp64);
tmp71 = tmp66 - tmp65;
X[3 * iostride] = tmp71 - tmp72;
X[2 * iostride] = tmp71 + tmp72;
tmp67 = tmp65 + tmp66;
X[4 * iostride] = tmp67 + tmp70;
X[iostride] = tmp67 - tmp70;
}
X = X + dist;
Y = Y - dist;
for (i = 2; i < m; i = i + 2, X = X + dist, Y = Y - dist, W = W + 4) {
fftw_real tmp13;
fftw_real tmp32;
fftw_real tmp50;
fftw_real tmp39;
fftw_real tmp20;
fftw_real tmp38;
fftw_real tmp21;
fftw_real tmp34;
fftw_real tmp28;
fftw_real tmp33;
fftw_real tmp43;
fftw_real tmp55;
ASSERT_ALIGNED_DOUBLE();
{
fftw_real tmp19;
fftw_real tmp31;
fftw_real tmp16;
fftw_real tmp30;
ASSERT_ALIGNED_DOUBLE();
tmp13 = X[0];
{
fftw_real tmp17;
fftw_real tmp18;
fftw_real tmp14;
fftw_real tmp15;
ASSERT_ALIGNED_DOUBLE();
tmp17 = X[2 * iostride];
tmp18 = Y[-3 * iostride];
tmp19 = tmp17 + tmp18;
tmp31 = tmp17 - tmp18;
tmp14 = X[iostride];
tmp15 = Y[-4 * iostride];
tmp16 = tmp14 + tmp15;
tmp30 = tmp14 - tmp15;
}
tmp32 = (K587785252 * tmp30) - (K951056516 * tmp31);
tmp50 = (K951056516 * tmp30) + (K587785252 * tmp31);
tmp39 = K559016994 * (tmp16 - tmp19);
tmp20 = tmp16 + tmp19;
tmp38 = tmp13 - (K250000000 * tmp20);
}
{
fftw_real tmp27;
fftw_real tmp42;
fftw_real tmp24;
fftw_real tmp41;
ASSERT_ALIGNED_DOUBLE();
tmp21 = Y[0];
{
fftw_real tmp25;
fftw_real tmp26;
fftw_real tmp22;
fftw_real tmp23;
ASSERT_ALIGNED_DOUBLE();
tmp25 = Y[-2 * iostride];
tmp26 = X[3 * iostride];
tmp27 = tmp25 - tmp26;
tmp42 = tmp25 + tmp26;
tmp22 = Y[-iostride];
tmp23 = X[4 * iostride];
tmp24 = tmp22 - tmp23;
tmp41 = tmp22 + tmp23;
}
tmp34 = K559016994 * (tmp24 - tmp27);
tmp28 = tmp24 + tmp27;
tmp33 = tmp21 - (K250000000 * tmp28);
tmp43 = (K587785252 * tmp41) - (K951056516 * tmp42);
tmp55 = (K951056516 * tmp41) + (K587785252 * tmp42);
}
X[0] = tmp13 + tmp20;
{
fftw_real tmp52;
fftw_real tmp58;
fftw_real tmp56;
fftw_real tmp60;
fftw_real tmp51;
fftw_real tmp54;
ASSERT_ALIGNED_DOUBLE();
tmp51 = tmp34 + tmp33;
tmp52 = tmp50 + tmp51;
tmp58 = tmp51 - tmp50;
tmp54 = tmp39 + tmp38;
tmp56 = tmp54 - tmp55;
tmp60 = tmp54 + tmp55;
{
fftw_real tmp49;
fftw_real tmp53;
fftw_real tmp57;
fftw_real tmp59;
ASSERT_ALIGNED_DOUBLE();
tmp49 = c_re(W[0]);
tmp53 = c_im(W[0]);
Y[-3 * iostride] = (tmp49 * tmp52) - (tmp53 * tmp56);
X[iostride] = (tmp53 * tmp52) + (tmp49 * tmp56);
tmp57 = c_re(W[3]);
tmp59 = c_im(W[3]);
Y[0] = (tmp57 * tmp58) - (tmp59 * tmp60);
X[4 * iostride] = (tmp59 * tmp58) + (tmp57 * tmp60);
}
}
Y[-4 * iostride] = tmp21 + tmp28;
{
fftw_real tmp36;
fftw_real tmp46;
fftw_real tmp44;
fftw_real tmp48;
fftw_real tmp35;
fftw_real tmp40;
ASSERT_ALIGNED_DOUBLE();
tmp35 = tmp33 - tmp34;
tmp36 = tmp32 + tmp35;
tmp46 = tmp35 - tmp32;
tmp40 = tmp38 - tmp39;
tmp44 = tmp40 - tmp43;
tmp48 = tmp40 + tmp43;
{
fftw_real tmp29;
fftw_real tmp37;
fftw_real tmp45;
fftw_real tmp47;
ASSERT_ALIGNED_DOUBLE();
tmp29 = c_re(W[1]);
tmp37 = c_im(W[1]);
Y[-2 * iostride] = (tmp29 * tmp36) - (tmp37 * tmp44);
X[2 * iostride] = (tmp37 * tmp36) + (tmp29 * tmp44);
tmp45 = c_re(W[2]);
tmp47 = c_im(W[2]);
Y[-iostride] = (tmp45 * tmp46) - (tmp47 * tmp48);
X[3 * iostride] = (tmp47 * tmp46) + (tmp45 * tmp48);
}
}
}
if (i == m) {
fftw_real tmp10;
fftw_real tmp12;
fftw_real tmp1;
fftw_real tmp4;
fftw_real tmp5;
fftw_real tmp6;
fftw_real tmp11;
fftw_real tmp7;
ASSERT_ALIGNED_DOUBLE();
{
fftw_real tmp8;
fftw_real tmp9;
fftw_real tmp2;
fftw_real tmp3;
ASSERT_ALIGNED_DOUBLE();
tmp8 = Y[-iostride];
tmp9 = Y[0];
tmp10 = (K1_902113032 * tmp8) + (K1_175570504 * tmp9);
tmp12 = (K1_175570504 * tmp8) - (K1_902113032 * tmp9);
tmp1 = X[2 * iostride];
tmp2 = X[iostride];
tmp3 = X[0];
tmp4 = tmp2 + tmp3;
tmp5 = (K500000000 * tmp4) - tmp1;
tmp6 = K1_118033988 * (tmp3 - tmp2);
}
X[0] = tmp1 + (K2_000000000 * tmp4);
tmp11 = tmp6 - tmp5;
X[2 * iostride] = tmp11 + tmp12;
X[3 * iostride] = tmp12 - tmp11;
tmp7 = tmp5 + tmp6;
X[iostride] = tmp7 - tmp10;
X[4 * iostride] = -(tmp7 + tmp10);
}
}
static const int twiddle_order[] =
{1, 2, 3, 4};
fftw_codelet_desc fftw_hc2hc_backward_5_desc =
{
"fftw_hc2hc_backward_5",
(void (*)()) fftw_hc2hc_backward_5,
5,
FFTW_BACKWARD,
FFTW_HC2HC,
124,
4,
twiddle_order,
};