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/*
* Copyright (c) 2003 Matteo Frigo
* Copyright (c) 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 Sat Jul 5 22:12:01 EDT 2003 */
#include "codelet-rdft.h"
/* Generated by: /homee/stevenj/cvs/fftw3.0.1/genfft/gen_hc2r -compact -variables 4 -sign 1 -n 8 -name hc2rIII_8 -dft-III -include hc2rIII.h */
/*
* This function contains 22 FP additions, 12 FP multiplications,
* (or, 18 additions, 8 multiplications, 4 fused multiply/add),
* 19 stack variables, and 16 memory accesses
*/
/*
* Generator Id's :
* $Id: hc2rIII_8.c,v 1.1 2008/10/17 06:12:08 scuri Exp $
* $Id: hc2rIII_8.c,v 1.1 2008/10/17 06:12:08 scuri Exp $
* $Id: hc2rIII_8.c,v 1.1 2008/10/17 06:12:08 scuri Exp $
*/
#include "hc2rIII.h"
static void hc2rIII_8(const R *ri, const R *ii, R *O, stride ris, stride iis, stride os, int v, int ivs, int ovs)
{
DK(KP1_414213562, +1.414213562373095048801688724209698078569671875);
DK(KP765366864, +0.765366864730179543456919968060797733522689125);
DK(KP1_847759065, +1.847759065022573512256366378793576573644833252);
DK(KP2_000000000, +2.000000000000000000000000000000000000000000000);
int i;
for (i = v; i > 0; i = i - 1, ri = ri + ivs, ii = ii + ivs, O = O + ovs) {
E T3, T7, Tf, Tl, T6, Tc, Ta, Tk, Tb, Tg;
{
E T1, T2, Td, Te;
T1 = ri[0];
T2 = ri[WS(ris, 3)];
T3 = T1 + T2;
T7 = T1 - T2;
Td = ii[0];
Te = ii[WS(iis, 3)];
Tf = Td + Te;
Tl = Te - Td;
}
{
E T4, T5, T8, T9;
T4 = ri[WS(ris, 2)];
T5 = ri[WS(ris, 1)];
T6 = T4 + T5;
Tc = T4 - T5;
T8 = ii[WS(iis, 2)];
T9 = ii[WS(iis, 1)];
Ta = T8 + T9;
Tk = T8 - T9;
}
O[0] = KP2_000000000 * (T3 + T6);
O[WS(os, 4)] = KP2_000000000 * (Tl - Tk);
Tb = T7 - Ta;
Tg = Tc + Tf;
O[WS(os, 1)] = FNMS(KP765366864, Tg, KP1_847759065 * Tb);
O[WS(os, 5)] = -(FMA(KP765366864, Tb, KP1_847759065 * Tg));
{
E Th, Ti, Tj, Tm;
Th = T7 + Ta;
Ti = Tc - Tf;
O[WS(os, 3)] = FMA(KP765366864, Th, KP1_847759065 * Ti);
O[WS(os, 7)] = FNMS(KP1_847759065, Th, KP765366864 * Ti);
Tj = T3 - T6;
Tm = Tk + Tl;
O[WS(os, 2)] = KP1_414213562 * (Tj + Tm);
O[WS(os, 6)] = KP1_414213562 * (Tm - Tj);
}
}
}
static const khc2r_desc desc = { 8, "hc2rIII_8", {18, 8, 4, 0}, &GENUS, 0, 0, 0, 0, 0 };
void X(codelet_hc2rIII_8) (planner *p) {
X(khc2rIII_register) (p, hc2rIII_8, &desc);
}
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