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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 22:12:07 EDT 2003 */
#include "codelet-rdft.h"
/* Generated by: /homee/stevenj/cvs/fftw3.0.1/genfft/gen_hc2r -compact -variables 4 -sign 1 -n 12 -name hc2rIII_12 -dft-III -include hc2rIII.h */
/*
* This function contains 42 FP additions, 20 FP multiplications,
* (or, 38 additions, 16 multiplications, 4 fused multiply/add),
* 25 stack variables, and 24 memory accesses
*/
/*
* Generator Id's :
* $Id: hc2rIII_12.c,v 1.1 2008/10/17 06:12:08 scuri Exp $
* $Id: hc2rIII_12.c,v 1.1 2008/10/17 06:12:08 scuri Exp $
* $Id: hc2rIII_12.c,v 1.1 2008/10/17 06:12:08 scuri Exp $
*/
#include "hc2rIII.h"
static void hc2rIII_12(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(KP2_000000000, +2.000000000000000000000000000000000000000000000);
DK(KP500000000, +0.500000000000000000000000000000000000000000000);
DK(KP866025403, +0.866025403784438646763723170752936183471402627);
int i;
for (i = v; i > 0; i = i - 1, ri = ri + ivs, ii = ii + ivs, O = O + ovs) {
E T5, Tw, Tb, Te, Tx, Ts, Ta, TA, Tg, Tj, Tz, Tp, Tt, Tu;
{
E T1, T2, T3, T4;
T1 = ri[WS(ris, 1)];
T2 = ri[WS(ris, 5)];
T3 = ri[WS(ris, 2)];
T4 = T2 + T3;
T5 = T1 + T4;
Tw = KP866025403 * (T2 - T3);
Tb = FNMS(KP500000000, T4, T1);
}
{
E Tq, Tc, Td, Tr;
Tq = ii[WS(iis, 1)];
Tc = ii[WS(iis, 5)];
Td = ii[WS(iis, 2)];
Tr = Td - Tc;
Te = KP866025403 * (Tc + Td);
Tx = FMA(KP500000000, Tr, Tq);
Ts = Tq - Tr;
}
{
E T6, T7, T8, T9;
T6 = ri[WS(ris, 4)];
T7 = ri[0];
T8 = ri[WS(ris, 3)];
T9 = T7 + T8;
Ta = T6 + T9;
TA = KP866025403 * (T7 - T8);
Tg = FNMS(KP500000000, T9, T6);
}
{
E To, Th, Ti, Tn;
To = ii[WS(iis, 4)];
Th = ii[0];
Ti = ii[WS(iis, 3)];
Tn = Ti - Th;
Tj = KP866025403 * (Th + Ti);
Tz = FMA(KP500000000, Tn, To);
Tp = Tn - To;
}
O[0] = KP2_000000000 * (T5 + Ta);
O[WS(os, 6)] = KP2_000000000 * (Ts + Tp);
Tt = Tp - Ts;
Tu = T5 - Ta;
O[WS(os, 3)] = KP1_414213562 * (Tt - Tu);
O[WS(os, 9)] = KP1_414213562 * (Tu + Tt);
{
E Tf, Tk, Tv, Ty, TB, TC;
Tf = Tb - Te;
Tk = Tg + Tj;
Tv = Tf - Tk;
Ty = Tw + Tx;
TB = Tz - TA;
TC = Ty + TB;
O[WS(os, 4)] = -(KP2_000000000 * (Tf + Tk));
O[WS(os, 10)] = KP2_000000000 * (TB - Ty);
O[WS(os, 1)] = KP1_414213562 * (Tv - TC);
O[WS(os, 7)] = KP1_414213562 * (Tv + TC);
}
{
E Tl, Tm, TF, TD, TE, TG;
Tl = Tb + Te;
Tm = Tg - Tj;
TF = Tm - Tl;
TD = TA + Tz;
TE = Tx - Tw;
TG = TE + TD;
O[WS(os, 8)] = KP2_000000000 * (Tl + Tm);
O[WS(os, 5)] = KP1_414213562 * (TF + TG);
O[WS(os, 2)] = KP2_000000000 * (TD - TE);
O[WS(os, 11)] = KP1_414213562 * (TF - TG);
}
}
}
static const khc2r_desc desc = { 12, "hc2rIII_12", {38, 16, 4, 0}, &GENUS, 0, 0, 0, 0, 0 };
void X(codelet_hc2rIII_12) (planner *p) {
X(khc2rIII_register) (p, hc2rIII_12, &desc);
}
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