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n1_8.c

/*
 * Copyright (c) 2003, 2006 Matteo Frigo
 * Copyright (c) 2003, 2006 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  1 13:54:09 EDT 2006 */

#include "codelet-dft.h"

#ifdef HAVE_FMA

/* Generated by: ../../../genfft/gen_notw -fma -reorder-insns -schedule-for-pipeline -compact -variables 4 -pipeline-latency 4 -n 8 -name n1_8 -include n.h */

/*
 * This function contains 52 FP additions, 8 FP multiplications,
 * (or, 44 additions, 0 multiplications, 8 fused multiply/add),
 * 36 stack variables, and 32 memory accesses
 */
/*
 * Generator Id's : 
 * $Id: algsimp.ml,v 1.9 2006-02-12 23:34:12 athena Exp $
 * $Id: fft.ml,v 1.4 2006-01-05 03:04:27 stevenj Exp $
 * $Id: gen_notw.ml,v 1.30 2006-02-12 23:34:12 athena Exp $
 */

#include "n.h"

static void n1_8(const R *ri, const R *ii, R *ro, R *io, stride is, stride os, INT v, INT ivs, INT ovs)
{
     DK(KP707106781, +0.707106781186547524400844362104849039284835938);
     INT i;
     for (i = v; i > 0; i = i - 1, ri = ri + ivs, ii = ii + ivs, ro = ro + ovs, io = io + ovs, MAKE_VOLATILE_STRIDE(is), MAKE_VOLATILE_STRIDE(os)) {
        E TF, TE, TD, TI;
        {
             E Tn, T3, TC, Ti, TB, T6, To, Tl, Td, TN, Tz, TH, Ta, Tq, Tt;
             E TM;
             {
                E T4, T5, Tj, Tk;
                {
                   E T1, T2, Tg, Th;
                   T1 = ri[0];
                   T2 = ri[WS(is, 4)];
                   Tg = ii[0];
                   Th = ii[WS(is, 4)];
                   T4 = ri[WS(is, 2)];
                   Tn = T1 - T2;
                   T3 = T1 + T2;
                   TC = Tg - Th;
                   Ti = Tg + Th;
                   T5 = ri[WS(is, 6)];
                }
                Tj = ii[WS(is, 2)];
                Tk = ii[WS(is, 6)];
                {
                   E Tb, Tc, Tw, Tx;
                   Tb = ri[WS(is, 7)];
                   TB = T4 - T5;
                   T6 = T4 + T5;
                   To = Tj - Tk;
                   Tl = Tj + Tk;
                   Tc = ri[WS(is, 3)];
                   Tw = ii[WS(is, 7)];
                   Tx = ii[WS(is, 3)];
                   {
                        E T8, Tv, Ty, T9, Tr, Ts;
                        T8 = ri[WS(is, 1)];
                        Td = Tb + Tc;
                        Tv = Tb - Tc;
                        TN = Tw + Tx;
                        Ty = Tw - Tx;
                        T9 = ri[WS(is, 5)];
                        Tr = ii[WS(is, 1)];
                        Ts = ii[WS(is, 5)];
                        Tz = Tv - Ty;
                        TH = Tv + Ty;
                        Ta = T8 + T9;
                        Tq = T8 - T9;
                        Tt = Tr - Ts;
                        TM = Tr + Ts;
                   }
                }
             }
             {
                E TL, TG, Tu, Tf, Tm, TO;
                {
                   E T7, Te, TP, TQ;
                   TL = T3 - T6;
                   T7 = T3 + T6;
                   TG = Tt - Tq;
                   Tu = Tq + Tt;
                   Te = Ta + Td;
                   Tf = Td - Ta;
                   Tm = Ti - Tl;
                   TP = Ti + Tl;
                   TQ = TM + TN;
                   TO = TM - TN;
                   ro[0] = T7 + Te;
                   ro[WS(os, 4)] = T7 - Te;
                   io[0] = TP + TQ;
                   io[WS(os, 4)] = TP - TQ;
                }
                {
                   E Tp, TA, TJ, TK;
                   TF = Tn - To;
                   Tp = Tn + To;
                   io[WS(os, 6)] = Tm - Tf;
                   io[WS(os, 2)] = Tf + Tm;
                   ro[WS(os, 2)] = TL + TO;
                   ro[WS(os, 6)] = TL - TO;
                   TA = Tu + Tz;
                   TE = Tz - Tu;
                   TD = TB + TC;
                   TJ = TC - TB;
                   TK = TG + TH;
                   TI = TG - TH;
                   ro[WS(os, 1)] = FMA(KP707106781, TA, Tp);
                   ro[WS(os, 5)] = FNMS(KP707106781, TA, Tp);
                   io[WS(os, 1)] = FMA(KP707106781, TK, TJ);
                   io[WS(os, 5)] = FNMS(KP707106781, TK, TJ);
                }
             }
        }
        io[WS(os, 3)] = FMA(KP707106781, TE, TD);
        io[WS(os, 7)] = FNMS(KP707106781, TE, TD);
        ro[WS(os, 3)] = FMA(KP707106781, TI, TF);
        ro[WS(os, 7)] = FNMS(KP707106781, TI, TF);
     }
}

static const kdft_desc desc = { 8, "n1_8", {44, 0, 8, 0}, &GENUS, 0, 0, 0, 0 };
void X(codelet_n1_8) (planner *p) {
     X(kdft_register) (p, n1_8, &desc);
}

#else                   /* HAVE_FMA */

/* Generated by: ../../../genfft/gen_notw -compact -variables 4 -pipeline-latency 4 -n 8 -name n1_8 -include n.h */

/*
 * This function contains 52 FP additions, 4 FP multiplications,
 * (or, 52 additions, 4 multiplications, 0 fused multiply/add),
 * 28 stack variables, and 32 memory accesses
 */
/*
 * Generator Id's : 
 * $Id: algsimp.ml,v 1.9 2006-02-12 23:34:12 athena Exp $
 * $Id: fft.ml,v 1.4 2006-01-05 03:04:27 stevenj Exp $
 * $Id: gen_notw.ml,v 1.30 2006-02-12 23:34:12 athena Exp $
 */

#include "n.h"

static void n1_8(const R *ri, const R *ii, R *ro, R *io, stride is, stride os, INT v, INT ivs, INT ovs)
{
     DK(KP707106781, +0.707106781186547524400844362104849039284835938);
     INT i;
     for (i = v; i > 0; i = i - 1, ri = ri + ivs, ii = ii + ivs, ro = ro + ovs, io = io + ovs, MAKE_VOLATILE_STRIDE(is), MAKE_VOLATILE_STRIDE(os)) {
        E T3, Tn, Ti, TC, T6, TB, Tl, To, Td, TN, Tz, TH, Ta, TM, Tu;
        E TG;
        {
             E T1, T2, Tj, Tk;
             T1 = ri[0];
             T2 = ri[WS(is, 4)];
             T3 = T1 + T2;
             Tn = T1 - T2;
             {
                E Tg, Th, T4, T5;
                Tg = ii[0];
                Th = ii[WS(is, 4)];
                Ti = Tg + Th;
                TC = Tg - Th;
                T4 = ri[WS(is, 2)];
                T5 = ri[WS(is, 6)];
                T6 = T4 + T5;
                TB = T4 - T5;
             }
             Tj = ii[WS(is, 2)];
             Tk = ii[WS(is, 6)];
             Tl = Tj + Tk;
             To = Tj - Tk;
             {
                E Tb, Tc, Tv, Tw, Tx, Ty;
                Tb = ri[WS(is, 7)];
                Tc = ri[WS(is, 3)];
                Tv = Tb - Tc;
                Tw = ii[WS(is, 7)];
                Tx = ii[WS(is, 3)];
                Ty = Tw - Tx;
                Td = Tb + Tc;
                TN = Tw + Tx;
                Tz = Tv - Ty;
                TH = Tv + Ty;
             }
             {
                E T8, T9, Tq, Tr, Ts, Tt;
                T8 = ri[WS(is, 1)];
                T9 = ri[WS(is, 5)];
                Tq = T8 - T9;
                Tr = ii[WS(is, 1)];
                Ts = ii[WS(is, 5)];
                Tt = Tr - Ts;
                Ta = T8 + T9;
                TM = Tr + Ts;
                Tu = Tq + Tt;
                TG = Tt - Tq;
             }
        }
        {
             E T7, Te, TP, TQ;
             T7 = T3 + T6;
             Te = Ta + Td;
             ro[WS(os, 4)] = T7 - Te;
             ro[0] = T7 + Te;
             TP = Ti + Tl;
             TQ = TM + TN;
             io[WS(os, 4)] = TP - TQ;
             io[0] = TP + TQ;
        }
        {
             E Tf, Tm, TL, TO;
             Tf = Td - Ta;
             Tm = Ti - Tl;
             io[WS(os, 2)] = Tf + Tm;
             io[WS(os, 6)] = Tm - Tf;
             TL = T3 - T6;
             TO = TM - TN;
             ro[WS(os, 6)] = TL - TO;
             ro[WS(os, 2)] = TL + TO;
        }
        {
             E Tp, TA, TJ, TK;
             Tp = Tn + To;
             TA = KP707106781 * (Tu + Tz);
             ro[WS(os, 5)] = Tp - TA;
             ro[WS(os, 1)] = Tp + TA;
             TJ = TC - TB;
             TK = KP707106781 * (TG + TH);
             io[WS(os, 5)] = TJ - TK;
             io[WS(os, 1)] = TJ + TK;
        }
        {
             E TD, TE, TF, TI;
             TD = TB + TC;
             TE = KP707106781 * (Tz - Tu);
             io[WS(os, 7)] = TD - TE;
             io[WS(os, 3)] = TD + TE;
             TF = Tn - To;
             TI = KP707106781 * (TG - TH);
             ro[WS(os, 7)] = TF - TI;
             ro[WS(os, 3)] = TF + TI;
        }
     }
}

static const kdft_desc desc = { 8, "n1_8", {52, 4, 0, 0}, &GENUS, 0, 0, 0, 0 };
void X(codelet_n1_8) (planner *p) {
     X(kdft_register) (p, n1_8, &desc);
}

#endif                        /* HAVE_FMA */

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