n1_7.c

fftw-3.0.1

/*
 * 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 21:29:32 EDT 2003 */

#include "codelet-dft.h"

/* Generated by: /homee/stevenj/cvs/fftw3.0.1/genfft/gen_notw -compact -variables 4 -n 7 -name n1_7 -include n.h */

/*
 * This function contains 60 FP additions, 36 FP multiplications,
 * (or, 36 additions, 12 multiplications, 24 fused multiply/add),
 * 25 stack variables, and 28 memory accesses
 */
/*
 * Generator Id's : 
 * $Id: algsimp.ml,v 1.7 2003/03/15 20:29:42 stevenj Exp $
 * $Id: fft.ml,v 1.2 2003/03/15 20:29:42 stevenj Exp $
 * $Id: gen_notw.ml,v 1.22 2003/04/17 11:07:19 athena Exp $
 */

#include "n.h"

static void n1_7(const R *ri, const R *ii, R *ro, R *io, stride is, stride os, int v, int ivs, int ovs)
{
     DK(KP222520933, +0.222520933956314404288902564496794759466355569);
     DK(KP900968867, +0.900968867902419126236102319507445051165919162);
     DK(KP623489801, +0.623489801858733530525004884004239810632274731);
     DK(KP433883739, +0.433883739117558120475768332848358754609990728);
     DK(KP781831482, +0.781831482468029808708444526674057750232334519);
     DK(KP974927912, +0.974927912181823607018131682993931217232785801);
     int i;
     for (i = v; i > 0; i = i - 1, ri = ri + ivs, ii = ii + ivs, ro = ro + ovs, io = io + ovs) {
	  E T1, Tu, T4, Tq, Te, Tx, T7, Ts, Tk, Tv, Ta, Tr, Th, Tw;
	  T1 = ri[0];
	  Tu = ii[0];
	  {
	       E T2, T3, Tc, Td;
	       T2 = ri[WS(is, 1)];
	       T3 = ri[WS(is, 6)];
	       T4 = T2 + T3;
	       Tq = T3 - T2;
	       Tc = ii[WS(is, 1)];
	       Td = ii[WS(is, 6)];
	       Te = Tc - Td;
	       Tx = Tc + Td;
	  }
	  {
	       E T5, T6, Ti, Tj;
	       T5 = ri[WS(is, 2)];
	       T6 = ri[WS(is, 5)];
	       T7 = T5 + T6;
	       Ts = T6 - T5;
	       Ti = ii[WS(is, 2)];
	       Tj = ii[WS(is, 5)];
	       Tk = Ti - Tj;
	       Tv = Ti + Tj;
	  }
	  {
	       E T8, T9, Tf, Tg;
	       T8 = ri[WS(is, 3)];
	       T9 = ri[WS(is, 4)];
	       Ta = T8 + T9;
	       Tr = T9 - T8;
	       Tf = ii[WS(is, 3)];
	       Tg = ii[WS(is, 4)];
	       Th = Tf - Tg;
	       Tw = Tf + Tg;
	  }
	  ro[0] = T1 + T4 + T7 + Ta;
	  io[0] = Tu + Tx + Tv + Tw;
	  {
	       E Tl, Tb, TB, TC;
	       Tl = FNMS(KP781831482, Th, KP974927912 * Te) - (KP433883739 * Tk);
	       Tb = FMA(KP623489801, Ta, T1) + FNMA(KP900968867, T7, KP222520933 * T4);
	       ro[WS(os, 5)] = Tb - Tl;
	       ro[WS(os, 2)] = Tb + Tl;
	       TB = FNMS(KP781831482, Tr, KP974927912 * Tq) - (KP433883739 * Ts);
	       TC = FMA(KP623489801, Tw, Tu) + FNMA(KP900968867, Tv, KP222520933 * Tx);
	       io[WS(os, 2)] = TB + TC;
	       io[WS(os, 5)] = TC - TB;
	  }
	  {
	       E Tn, Tm, Tz, TA;
	       Tn = FMA(KP781831482, Te, KP974927912 * Tk) + (KP433883739 * Th);
	       Tm = FMA(KP623489801, T4, T1) + FNMA(KP900968867, Ta, KP222520933 * T7);
	       ro[WS(os, 6)] = Tm - Tn;
	       ro[WS(os, 1)] = Tm + Tn;
	       Tz = FMA(KP781831482, Tq, KP974927912 * Ts) + (KP433883739 * Tr);
	       TA = FMA(KP623489801, Tx, Tu) + FNMA(KP900968867, Tw, KP222520933 * Tv);
	       io[WS(os, 1)] = Tz + TA;
	       io[WS(os, 6)] = TA - Tz;
	  }
	  {
	       E Tp, To, Tt, Ty;
	       Tp = FMA(KP433883739, Te, KP974927912 * Th) - (KP781831482 * Tk);
	       To = FMA(KP623489801, T7, T1) + FNMA(KP222520933, Ta, KP900968867 * T4);
	       ro[WS(os, 4)] = To - Tp;
	       ro[WS(os, 3)] = To + Tp;
	       Tt = FMA(KP433883739, Tq, KP974927912 * Tr) - (KP781831482 * Ts);
	       Ty = FMA(KP623489801, Tv, Tu) + FNMA(KP222520933, Tw, KP900968867 * Tx);
	       io[WS(os, 3)] = Tt + Ty;
	       io[WS(os, 4)] = Ty - Tt;
	  }
     }
}

static const kdft_desc desc = { 7, "n1_7", {36, 12, 24, 0}, &GENUS, 0, 0, 0, 0 };
void X(codelet_n1_7) (planner *p) {
     X(kdft_register) (p, n1_7, &desc);
}