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t2fv_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 14:55:04 EDT 2006 */

#include "codelet-dft.h"

#ifdef HAVE_FMA

/* Generated by: ../../../genfft/gen_twiddle_c -fma -reorder-insns -schedule-for-pipeline -simd -compact -variables 4 -pipeline-latency 8 -n 8 -name t2fv_8 -include t2f.h */

/*
 * This function contains 33 FP additions, 24 FP multiplications,
 * (or, 23 additions, 14 multiplications, 10 fused multiply/add),
 * 36 stack variables, and 16 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_twiddle_c.ml,v 1.14 2006-02-12 23:34:12 athena Exp $
 */

#include "t2f.h"

static const R *t2fv_8(R *ri, R *ii, const R *W, stride ios, INT m, INT dist)
{
     DVK(KP707106781, +0.707106781186547524400844362104849039284835938);
     INT i;
     R *x;
     x = ri;
     for (i = m; i > 0; i = i - VL, x = x + (VL * dist), W = W + (TWVL * 14), MAKE_VOLATILE_STRIDE(ios)) {
        V T1, T2, Th, Tj, T5, T7, Ta, Tc;
        T1 = LD(&(x[0]), dist, &(x[0]));
        T2 = LD(&(x[WS(ios, 4)]), dist, &(x[0]));
        Th = LD(&(x[WS(ios, 2)]), dist, &(x[0]));
        Tj = LD(&(x[WS(ios, 6)]), dist, &(x[0]));
        T5 = LD(&(x[WS(ios, 1)]), dist, &(x[WS(ios, 1)]));
        T7 = LD(&(x[WS(ios, 5)]), dist, &(x[WS(ios, 1)]));
        Ta = LD(&(x[WS(ios, 7)]), dist, &(x[WS(ios, 1)]));
        Tc = LD(&(x[WS(ios, 3)]), dist, &(x[WS(ios, 1)]));
        {
             V T3, Ti, Tk, T6, T8, Tb, Td;
             T3 = BYTWJ(&(W[TWVL * 6]), T2);
             Ti = BYTWJ(&(W[TWVL * 2]), Th);
             Tk = BYTWJ(&(W[TWVL * 10]), Tj);
             T6 = BYTWJ(&(W[0]), T5);
             T8 = BYTWJ(&(W[TWVL * 8]), T7);
             Tb = BYTWJ(&(W[TWVL * 12]), Ta);
             Td = BYTWJ(&(W[TWVL * 4]), Tc);
             {
                V Tq, T4, Tr, Tl, Tt, T9, Tu, Te, Tw, Ts;
                Tq = VADD(T1, T3);
                T4 = VSUB(T1, T3);
                Tr = VADD(Ti, Tk);
                Tl = VSUB(Ti, Tk);
                Tt = VADD(T6, T8);
                T9 = VSUB(T6, T8);
                Tu = VADD(Tb, Td);
                Te = VSUB(Tb, Td);
                Tw = VSUB(Tq, Tr);
                Ts = VADD(Tq, Tr);
                {
                   V Tx, Tv, Tm, Tf;
                   Tx = VSUB(Tu, Tt);
                   Tv = VADD(Tt, Tu);
                   Tm = VSUB(Te, T9);
                   Tf = VADD(T9, Te);
                   {
                        V Tp, Tn, To, Tg;
                        ST(&(x[WS(ios, 2)]), VFMAI(Tx, Tw), dist, &(x[0]));
                        ST(&(x[WS(ios, 6)]), VFNMSI(Tx, Tw), dist, &(x[0]));
                        ST(&(x[0]), VADD(Ts, Tv), dist, &(x[0]));
                        ST(&(x[WS(ios, 4)]), VSUB(Ts, Tv), dist, &(x[0]));
                        Tp = VFMA(LDK(KP707106781), Tm, Tl);
                        Tn = VFNMS(LDK(KP707106781), Tm, Tl);
                        To = VFNMS(LDK(KP707106781), Tf, T4);
                        Tg = VFMA(LDK(KP707106781), Tf, T4);
                        ST(&(x[WS(ios, 5)]), VFNMSI(Tp, To), dist, &(x[WS(ios, 1)]));
                        ST(&(x[WS(ios, 3)]), VFMAI(Tp, To), dist, &(x[WS(ios, 1)]));
                        ST(&(x[WS(ios, 7)]), VFMAI(Tn, Tg), dist, &(x[WS(ios, 1)]));
                        ST(&(x[WS(ios, 1)]), VFNMSI(Tn, Tg), dist, &(x[WS(ios, 1)]));
                   }
                }
             }
        }
     }
     return W;
}

static const tw_instr twinstr[] = {
     VTW(1),
     VTW(2),
     VTW(3),
     VTW(4),
     VTW(5),
     VTW(6),
     VTW(7),
     {TW_NEXT, VL, 0}
};

static const ct_desc desc = { 8, "t2fv_8", twinstr, &GENUS, {23, 14, 10, 0}, 0, 0, 0 };

void X(codelet_t2fv_8) (planner *p) {
     X(kdft_dit_register) (p, t2fv_8, &desc);
}
#else                   /* HAVE_FMA */

/* Generated by: ../../../genfft/gen_twiddle_c -simd -compact -variables 4 -pipeline-latency 8 -n 8 -name t2fv_8 -include t2f.h */

/*
 * This function contains 33 FP additions, 16 FP multiplications,
 * (or, 33 additions, 16 multiplications, 0 fused multiply/add),
 * 24 stack variables, and 16 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_twiddle_c.ml,v 1.14 2006-02-12 23:34:12 athena Exp $
 */

#include "t2f.h"

static const R *t2fv_8(R *ri, R *ii, const R *W, stride ios, INT m, INT dist)
{
     DVK(KP707106781, +0.707106781186547524400844362104849039284835938);
     INT i;
     R *x;
     x = ri;
     for (i = m; i > 0; i = i - VL, x = x + (VL * dist), W = W + (TWVL * 14), MAKE_VOLATILE_STRIDE(ios)) {
        V T4, Tq, Tm, Tr, T9, Tt, Te, Tu, T1, T3, T2;
        T1 = LD(&(x[0]), dist, &(x[0]));
        T2 = LD(&(x[WS(ios, 4)]), dist, &(x[0]));
        T3 = BYTWJ(&(W[TWVL * 6]), T2);
        T4 = VSUB(T1, T3);
        Tq = VADD(T1, T3);
        {
             V Tj, Tl, Ti, Tk;
             Ti = LD(&(x[WS(ios, 2)]), dist, &(x[0]));
             Tj = BYTWJ(&(W[TWVL * 2]), Ti);
             Tk = LD(&(x[WS(ios, 6)]), dist, &(x[0]));
             Tl = BYTWJ(&(W[TWVL * 10]), Tk);
             Tm = VSUB(Tj, Tl);
             Tr = VADD(Tj, Tl);
        }
        {
             V T6, T8, T5, T7;
             T5 = LD(&(x[WS(ios, 1)]), dist, &(x[WS(ios, 1)]));
             T6 = BYTWJ(&(W[0]), T5);
             T7 = LD(&(x[WS(ios, 5)]), dist, &(x[WS(ios, 1)]));
             T8 = BYTWJ(&(W[TWVL * 8]), T7);
             T9 = VSUB(T6, T8);
             Tt = VADD(T6, T8);
        }
        {
             V Tb, Td, Ta, Tc;
             Ta = LD(&(x[WS(ios, 7)]), dist, &(x[WS(ios, 1)]));
             Tb = BYTWJ(&(W[TWVL * 12]), Ta);
             Tc = LD(&(x[WS(ios, 3)]), dist, &(x[WS(ios, 1)]));
             Td = BYTWJ(&(W[TWVL * 4]), Tc);
             Te = VSUB(Tb, Td);
             Tu = VADD(Tb, Td);
        }
        {
             V Ts, Tv, Tw, Tx;
             Ts = VADD(Tq, Tr);
             Tv = VADD(Tt, Tu);
             ST(&(x[WS(ios, 4)]), VSUB(Ts, Tv), dist, &(x[0]));
             ST(&(x[0]), VADD(Ts, Tv), dist, &(x[0]));
             Tw = VSUB(Tq, Tr);
             Tx = VBYI(VSUB(Tu, Tt));
             ST(&(x[WS(ios, 6)]), VSUB(Tw, Tx), dist, &(x[0]));
             ST(&(x[WS(ios, 2)]), VADD(Tw, Tx), dist, &(x[0]));
             {
                V Tg, To, Tn, Tp, Tf, Th;
                Tf = VMUL(LDK(KP707106781), VADD(T9, Te));
                Tg = VADD(T4, Tf);
                To = VSUB(T4, Tf);
                Th = VMUL(LDK(KP707106781), VSUB(Te, T9));
                Tn = VBYI(VSUB(Th, Tm));
                Tp = VBYI(VADD(Tm, Th));
                ST(&(x[WS(ios, 7)]), VSUB(Tg, Tn), dist, &(x[WS(ios, 1)]));
                ST(&(x[WS(ios, 3)]), VADD(To, Tp), dist, &(x[WS(ios, 1)]));
                ST(&(x[WS(ios, 1)]), VADD(Tg, Tn), dist, &(x[WS(ios, 1)]));
                ST(&(x[WS(ios, 5)]), VSUB(To, Tp), dist, &(x[WS(ios, 1)]));
             }
        }
     }
     return W;
}

static const tw_instr twinstr[] = {
     VTW(1),
     VTW(2),
     VTW(3),
     VTW(4),
     VTW(5),
     VTW(6),
     VTW(7),
     {TW_NEXT, VL, 0}
};

static const ct_desc desc = { 8, "t2fv_8", twinstr, &GENUS, {33, 16, 0, 0}, 0, 0, 0 };

void X(codelet_t2fv_8) (planner *p) {
     X(kdft_dit_register) (p, t2fv_8, &desc);
}
#endif                        /* HAVE_FMA */

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