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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 22:22:02 EDT 2003 */
#include "codelet-rdft.h"
/* Generated by: /homee/stevenj/cvs/fftw3.0.1/genfft/gen_r2r -compact -variables 4 -redft01 -n 8 -name e01_8 -include r2r.h */
/*
* This function contains 26 FP additions, 15 FP multiplications,
* (or, 20 additions, 9 multiplications, 6 fused multiply/add),
* 27 stack variables, and 16 memory accesses
*/
/*
* Generator Id's :
* $Id: e01_8.c,v 1.1 2008/10/17 06:13:17 scuri Exp $
* $Id: e01_8.c,v 1.1 2008/10/17 06:13:17 scuri Exp $
* $Id: e01_8.c,v 1.1 2008/10/17 06:13:17 scuri Exp $
*/
#include "r2r.h"
static void e01_8_0(const R *I, R *O, stride istride, stride ostride)
{
DK(KP1_662939224, +1.662939224605090474157576755235811513477121624);
DK(KP1_111140466, +1.111140466039204449485661627897065748749874382);
DK(KP390180644, +0.390180644032256535696569736954044481855383236);
DK(KP1_961570560, +1.961570560806460898252364472268478073947867462);
DK(KP707106781, +0.707106781186547524400844362104849039284835938);
DK(KP1_414213562, +1.414213562373095048801688724209698078569671875);
DK(KP765366864, +0.765366864730179543456919968060797733522689125);
DK(KP1_847759065, +1.847759065022573512256366378793576573644833252);
{
E T7, Tl, T4, Tk, Td, To, Tg, Tn;
{
E T5, T6, T1, T3, T2;
T5 = I[WS(istride, 2)];
T6 = I[WS(istride, 6)];
T7 = FMA(KP1_847759065, T5, KP765366864 * T6);
Tl = FNMS(KP1_847759065, T6, KP765366864 * T5);
T1 = I[0];
T2 = I[WS(istride, 4)];
T3 = KP1_414213562 * T2;
T4 = T1 + T3;
Tk = T1 - T3;
{
E T9, Tf, Tc, Te, Ta, Tb;
T9 = I[WS(istride, 1)];
Tf = I[WS(istride, 7)];
Ta = I[WS(istride, 5)];
Tb = I[WS(istride, 3)];
Tc = KP707106781 * (Ta + Tb);
Te = KP707106781 * (Ta - Tb);
Td = T9 + Tc;
To = Te + Tf;
Tg = Te - Tf;
Tn = T9 - Tc;
}
}
{
E T8, Th, Tq, Tr;
T8 = T4 + T7;
Th = FNMS(KP390180644, Tg, KP1_961570560 * Td);
O[WS(ostride, 7)] = T8 - Th;
O[0] = T8 + Th;
Tq = Tk - Tl;
Tr = FMA(KP1_111140466, Tn, KP1_662939224 * To);
O[WS(ostride, 5)] = Tq - Tr;
O[WS(ostride, 2)] = Tq + Tr;
}
{
E Ti, Tj, Tm, Tp;
Ti = T4 - T7;
Tj = FMA(KP390180644, Td, KP1_961570560 * Tg);
O[WS(ostride, 4)] = Ti - Tj;
O[WS(ostride, 3)] = Ti + Tj;
Tm = Tk + Tl;
Tp = FNMS(KP1_111140466, To, KP1_662939224 * Tn);
O[WS(ostride, 6)] = Tm - Tp;
O[WS(ostride, 1)] = Tm + Tp;
}
}
}
static void e01_8(const R *I, R *O, stride is, stride os, int v, int ivs, int ovs)
{
int i;
for (i = v; i > 0; --i) {
e01_8_0(I, O, is, os);
I += ivs;
O += ovs;
}
}
static const kr2r_desc desc = { 8, "e01_8", {20, 9, 6, 0}, &GENUS, REDFT01, 0, 0, 0, 0 };
void X(codelet_e01_8) (planner *p) {
X(kr2r_register) (p, e01_8, &desc);
}
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