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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 21:56:41 EDT 2003 */
#include "codelet-rdft.h"
/* Generated by: /homee/stevenj/cvs/fftw3.0.1/genfft/gen_r2hc -compact -variables 4 -n 12 -name r2hc_12 -include r2hc.h */
/*
* This function contains 38 FP additions, 8 FP multiplications,
* (or, 34 additions, 4 multiplications, 4 fused multiply/add),
* 21 stack variables, and 24 memory accesses
*/
/*
* Generator Id's :
* $Id: r2hc_12.c,v 1.1 2008/10/17 06:12:34 scuri Exp $
* $Id: r2hc_12.c,v 1.1 2008/10/17 06:12:34 scuri Exp $
* $Id: r2hc_12.c,v 1.1 2008/10/17 06:12:34 scuri Exp $
*/
#include "r2hc.h"
static void r2hc_12(const R *I, R *ro, R *io, stride is, stride ros, stride ios, int v, int ivs, int ovs)
{
DK(KP866025403, +0.866025403784438646763723170752936183471402627);
DK(KP500000000, +0.500000000000000000000000000000000000000000000);
int i;
for (i = v; i > 0; i = i - 1, I = I + ivs, ro = ro + ovs, io = io + ovs) {
E T5, Tp, Tb, Tn, Ty, Tt, Ta, Tq, Tc, Ti, Tz, Tu, Td, To;
{
E T1, T2, T3, T4;
T1 = I[0];
T2 = I[WS(is, 4)];
T3 = I[WS(is, 8)];
T4 = T2 + T3;
T5 = T1 + T4;
Tp = FNMS(KP500000000, T4, T1);
Tb = T3 - T2;
}
{
E Tj, Tk, Tl, Tm;
Tj = I[WS(is, 3)];
Tk = I[WS(is, 7)];
Tl = I[WS(is, 11)];
Tm = Tk + Tl;
Tn = FNMS(KP500000000, Tm, Tj);
Ty = Tl - Tk;
Tt = Tj + Tm;
}
{
E T6, T7, T8, T9;
T6 = I[WS(is, 6)];
T7 = I[WS(is, 10)];
T8 = I[WS(is, 2)];
T9 = T7 + T8;
Ta = T6 + T9;
Tq = FNMS(KP500000000, T9, T6);
Tc = T8 - T7;
}
{
E Te, Tf, Tg, Th;
Te = I[WS(is, 9)];
Tf = I[WS(is, 1)];
Tg = I[WS(is, 5)];
Th = Tf + Tg;
Ti = FNMS(KP500000000, Th, Te);
Tz = Tg - Tf;
Tu = Te + Th;
}
ro[WS(ros, 3)] = T5 - Ta;
io[WS(ios, 3)] = Tt - Tu;
Td = KP866025403 * (Tb - Tc);
To = Ti - Tn;
io[WS(ios, 1)] = Td + To;
io[WS(ios, 5)] = To - Td;
{
E Tx, TA, Tv, Tw;
Tx = Tp - Tq;
TA = KP866025403 * (Ty - Tz);
ro[WS(ros, 5)] = Tx - TA;
ro[WS(ros, 1)] = Tx + TA;
Tv = T5 + Ta;
Tw = Tt + Tu;
ro[WS(ros, 6)] = Tv - Tw;
ro[0] = Tv + Tw;
}
{
E Tr, Ts, TB, TC;
Tr = Tp + Tq;
Ts = Tn + Ti;
ro[WS(ros, 2)] = Tr - Ts;
ro[WS(ros, 4)] = Tr + Ts;
TB = Ty + Tz;
TC = Tb + Tc;
io[WS(ios, 2)] = KP866025403 * (TB - TC);
io[WS(ios, 4)] = KP866025403 * (TC + TB);
}
}
}
static const kr2hc_desc desc = { 12, "r2hc_12", {34, 4, 4, 0}, &GENUS, 0, 0, 0, 0, 0 };
void X(codelet_r2hc_12) (planner *p) {
X(kr2hc_register) (p, r2hc_12, &desc);
}
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