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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 21:56:52 EDT 2003 */
#include "codelet-rdft.h"
/* Generated by: /homee/stevenj/cvs/fftw3.0.1/genfft/gen_hc2hc -compact -variables 4 -n 5 -dit -name hf_5 -include hf.h */
/*
* This function contains 40 FP additions, 28 FP multiplications,
* (or, 26 additions, 14 multiplications, 14 fused multiply/add),
* 29 stack variables, and 20 memory accesses
*/
/*
* Generator Id's :
* $Id: hf_5.c,v 1.1 2008/10/17 06:12:34 scuri Exp $
* $Id: hf_5.c,v 1.1 2008/10/17 06:12:34 scuri Exp $
* $Id: hf_5.c,v 1.1 2008/10/17 06:12:34 scuri Exp $
*/
#include "hf.h"
static const R *hf_5(R *rio, R *iio, const R *W, stride ios, int m, int dist)
{
DK(KP250000000, +0.250000000000000000000000000000000000000000000);
DK(KP559016994, +0.559016994374947424102293417182819058860154590);
DK(KP587785252, +0.587785252292473129168705954639072768597652438);
DK(KP951056516, +0.951056516295153572116439333379382143405698634);
int i;
for (i = m - 2; i > 0; i = i - 2, rio = rio + dist, iio = iio - dist, W = W + 8) {
E T1, TE, Tu, Tx, TG, TF, TB, TC, TD, Tc, Tn, To;
T1 = rio[0];
TE = iio[-WS(ios, 4)];
{
E T6, Ts, Tm, Tw, Tb, Tt, Th, Tv;
{
E T3, T5, T2, T4;
T3 = rio[WS(ios, 1)];
T5 = iio[-WS(ios, 3)];
T2 = W[0];
T4 = W[1];
T6 = FMA(T2, T3, T4 * T5);
Ts = FNMS(T4, T3, T2 * T5);
}
{
E Tj, Tl, Ti, Tk;
Tj = rio[WS(ios, 3)];
Tl = iio[-WS(ios, 1)];
Ti = W[4];
Tk = W[5];
Tm = FMA(Ti, Tj, Tk * Tl);
Tw = FNMS(Tk, Tj, Ti * Tl);
}
{
E T8, Ta, T7, T9;
T8 = rio[WS(ios, 4)];
Ta = iio[0];
T7 = W[6];
T9 = W[7];
Tb = FMA(T7, T8, T9 * Ta);
Tt = FNMS(T9, T8, T7 * Ta);
}
{
E Te, Tg, Td, Tf;
Te = rio[WS(ios, 2)];
Tg = iio[-WS(ios, 2)];
Td = W[2];
Tf = W[3];
Th = FMA(Td, Te, Tf * Tg);
Tv = FNMS(Tf, Te, Td * Tg);
}
Tu = Ts - Tt;
Tx = Tv - Tw;
TG = Th - Tm;
TF = Tb - T6;
TB = Ts + Tt;
TC = Tv + Tw;
TD = TB + TC;
Tc = T6 + Tb;
Tn = Th + Tm;
To = Tc + Tn;
}
rio[0] = T1 + To;
iio[0] = TD + TE;
{
E Ty, TA, Tr, Tz, Tp, Tq;
Ty = FMA(KP951056516, Tu, KP587785252 * Tx);
TA = FNMS(KP587785252, Tu, KP951056516 * Tx);
Tp = KP559016994 * (Tc - Tn);
Tq = FNMS(KP250000000, To, T1);
Tr = Tp + Tq;
Tz = Tq - Tp;
iio[-WS(ios, 4)] = Tr - Ty;
iio[-WS(ios, 3)] = Tz + TA;
rio[WS(ios, 1)] = Tr + Ty;
rio[WS(ios, 2)] = Tz - TA;
}
{
E TH, TL, TK, TM, TI, TJ;
TH = FNMS(KP587785252, TG, KP951056516 * TF);
TL = FMA(KP587785252, TF, KP951056516 * TG);
TI = KP559016994 * (TB - TC);
TJ = FNMS(KP250000000, TD, TE);
TK = TI + TJ;
TM = TJ - TI;
rio[WS(ios, 4)] = TH - TK;
iio[-WS(ios, 2)] = TL + TM;
iio[-WS(ios, 1)] = TH + TK;
rio[WS(ios, 3)] = TL - TM;
}
}
return W;
}
static const tw_instr twinstr[] = {
{TW_FULL, 0, 5},
{TW_NEXT, 1, 0}
};
static const hc2hc_desc desc = { 5, "hf_5", twinstr, {26, 14, 14, 0}, &GENUS, 0, 0, 0 };
void X(codelet_hf_5) (planner *p) {
X(khc2hc_dit_register) (p, hf_5, &desc);
}
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