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n1_4.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 13:54:06 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 4 -name n1_4 -include n.h */

/*
 * This function contains 16 FP additions, 0 FP multiplications,
 * (or, 16 additions, 0 multiplications, 0 fused multiply/add),
 * 13 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_notw.ml,v 1.30 2006-02-12 23:34:12 athena Exp $
 */

#include "n.h"

static void n1_4(const R *ri, const R *ii, R *ro, R *io, stride is, stride os, INT v, INT ivs, INT ovs)
{
     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 T4, Tb, T3, Tf, T9, T5, Tc, Td;
        {
             E T1, T2, T7, T8;
             T1 = ri[0];
             T2 = ri[WS(is, 2)];
             T7 = ii[0];
             T8 = ii[WS(is, 2)];
             T4 = ri[WS(is, 1)];
             Tb = T1 - T2;
             T3 = T1 + T2;
             Tf = T7 + T8;
             T9 = T7 - T8;
             T5 = ri[WS(is, 3)];
             Tc = ii[WS(is, 1)];
             Td = ii[WS(is, 3)];
        }
        {
             E T6, Ta, Te, Tg;
             T6 = T4 + T5;
             Ta = T4 - T5;
             Te = Tc - Td;
             Tg = Tc + Td;
             io[WS(os, 3)] = Ta + T9;
             io[WS(os, 1)] = T9 - Ta;
             ro[0] = T3 + T6;
             ro[WS(os, 2)] = T3 - T6;
             io[0] = Tf + Tg;
             io[WS(os, 2)] = Tf - Tg;
             ro[WS(os, 3)] = Tb - Te;
             ro[WS(os, 1)] = Tb + Te;
        }
     }
}

static const kdft_desc desc = { 4, "n1_4", {16, 0, 0, 0}, &GENUS, 0, 0, 0, 0 };
void X(codelet_n1_4) (planner *p) {
     X(kdft_register) (p, n1_4, &desc);
}

#else                   /* HAVE_FMA */

/* Generated by: ../../../genfft/gen_notw -compact -variables 4 -pipeline-latency 4 -n 4 -name n1_4 -include n.h */

/*
 * This function contains 16 FP additions, 0 FP multiplications,
 * (or, 16 additions, 0 multiplications, 0 fused multiply/add),
 * 13 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_notw.ml,v 1.30 2006-02-12 23:34:12 athena Exp $
 */

#include "n.h"

static void n1_4(const R *ri, const R *ii, R *ro, R *io, stride is, stride os, INT v, INT ivs, INT ovs)
{
     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, Tb, T9, Tf, T6, Ta, Te, Tg;
        {
             E T1, T2, T7, T8;
             T1 = ri[0];
             T2 = ri[WS(is, 2)];
             T3 = T1 + T2;
             Tb = T1 - T2;
             T7 = ii[0];
             T8 = ii[WS(is, 2)];
             T9 = T7 - T8;
             Tf = T7 + T8;
        }
        {
             E T4, T5, Tc, Td;
             T4 = ri[WS(is, 1)];
             T5 = ri[WS(is, 3)];
             T6 = T4 + T5;
             Ta = T4 - T5;
             Tc = ii[WS(is, 1)];
             Td = ii[WS(is, 3)];
             Te = Tc - Td;
             Tg = Tc + Td;
        }
        ro[WS(os, 2)] = T3 - T6;
        io[WS(os, 2)] = Tf - Tg;
        ro[0] = T3 + T6;
        io[0] = Tf + Tg;
        io[WS(os, 1)] = T9 - Ta;
        ro[WS(os, 1)] = Tb + Te;
        io[WS(os, 3)] = Ta + T9;
        ro[WS(os, 3)] = Tb - Te;
     }
}

static const kdft_desc desc = { 4, "n1_4", {16, 0, 0, 0}, &GENUS, 0, 0, 0, 0 };
void X(codelet_n1_4) (planner *p) {
     X(kdft_register) (p, n1_4, &desc);
}

#endif                        /* HAVE_FMA */

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