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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 22:11:25 EDT 2003 */
#include "codelet-rdft.h"
/* Generated by: /homee/stevenj/cvs/fftw3.0.1/genfft/gen_hc2hc -compact -variables 4 -sign 1 -n 6 -dif -name hb_6 -include hb.h */
/*
* This function contains 46 FP additions, 28 FP multiplications,
* (or, 32 additions, 14 multiplications, 14 fused multiply/add),
* 25 stack variables, and 24 memory accesses
*/
/*
* Generator Id's :
* $Id: hb_6.c,v 1.1 2008/10/17 06:12:08 scuri Exp $
* $Id: hb_6.c,v 1.1 2008/10/17 06:12:08 scuri Exp $
* $Id: hb_6.c,v 1.1 2008/10/17 06:12:08 scuri Exp $
*/
#include "hb.h"
static const R *hb_6(R *rio, R *iio, const R *W, stride ios, int m, int dist)
{
DK(KP500000000, +0.500000000000000000000000000000000000000000000);
DK(KP866025403, +0.866025403784438646763723170752936183471402627);
int i;
for (i = m - 2; i > 0; i = i - 2, rio = rio + dist, iio = iio - dist, W = W + 10) {
E T3, Ty, Tp, TE, Ta, TO, Tm, TB, Tj, TL, Tq, TH;
{
E T1, T2, Tn, To;
T1 = rio[0];
T2 = iio[-WS(ios, 3)];
T3 = T1 + T2;
Ty = T1 - T2;
Tn = iio[0];
To = rio[WS(ios, 3)];
Tp = Tn - To;
TE = Tn + To;
}
{
E T6, Tz, T9, TA;
{
E T4, T5, T7, T8;
T4 = rio[WS(ios, 2)];
T5 = iio[-WS(ios, 5)];
T6 = T4 + T5;
Tz = T4 - T5;
T7 = iio[-WS(ios, 4)];
T8 = rio[WS(ios, 1)];
T9 = T7 + T8;
TA = T7 - T8;
}
Ta = T6 + T9;
TO = KP866025403 * (Tz - TA);
Tm = KP866025403 * (T6 - T9);
TB = Tz + TA;
}
{
E Tf, TF, Ti, TG;
{
E Td, Te, Tg, Th;
Td = iio[-WS(ios, 1)];
Te = rio[WS(ios, 4)];
Tf = Td - Te;
TF = Te + Td;
Tg = iio[-WS(ios, 2)];
Th = rio[WS(ios, 5)];
Ti = Tg - Th;
TG = Tg + Th;
}
Tj = KP866025403 * (Tf - Ti);
TL = KP866025403 * (TF + TG);
Tq = Tf + Ti;
TH = TF - TG;
}
rio[0] = T3 + Ta;
iio[-WS(ios, 5)] = Tp + Tq;
{
E TC, TI, Tx, TD;
TC = Ty + TB;
TI = TE - TH;
Tx = W[4];
TD = W[5];
rio[WS(ios, 3)] = FNMS(TD, TI, Tx * TC);
iio[-WS(ios, 2)] = FMA(TD, TC, Tx * TI);
}
{
E Tk, Tu, Ts, Tw, Tc, Tr;
Tc = FNMS(KP500000000, Ta, T3);
Tk = Tc + Tj;
Tu = Tc - Tj;
Tr = FNMS(KP500000000, Tq, Tp);
Ts = Tm + Tr;
Tw = Tr - Tm;
{
E Tb, Tl, Tt, Tv;
Tb = W[6];
Tl = W[7];
rio[WS(ios, 4)] = FNMS(Tl, Ts, Tb * Tk);
iio[-WS(ios, 1)] = FMA(Tl, Tk, Tb * Ts);
Tt = W[2];
Tv = W[3];
rio[WS(ios, 2)] = FNMS(Tv, Tw, Tt * Tu);
iio[-WS(ios, 3)] = FMA(Tv, Tu, Tt * Tw);
}
}
{
E TM, TU, TQ, TS, TK, TP;
TK = FNMS(KP500000000, TB, Ty);
TM = TK - TL;
TU = TK + TL;
TP = FMA(KP500000000, TH, TE);
TQ = TO + TP;
TS = TP - TO;
{
E TJ, TN, TR, TT;
TJ = W[0];
TN = W[1];
rio[WS(ios, 1)] = FNMS(TN, TQ, TJ * TM);
iio[-WS(ios, 4)] = FMA(TJ, TQ, TN * TM);
TR = W[8];
TT = W[9];
iio[0] = FMA(TR, TS, TT * TU);
rio[WS(ios, 5)] = FNMS(TT, TS, TR * TU);
}
}
}
return W;
}
static const tw_instr twinstr[] = {
{TW_FULL, 0, 6},
{TW_NEXT, 1, 0}
};
static const hc2hc_desc desc = { 6, "hb_6", twinstr, {32, 14, 14, 0}, &GENUS, 0, 0, 0 };
void X(codelet_hb_6) (planner *p) {
X(khc2hc_dif_register) (p, hb_6, &desc);
}
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