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n2sv_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 14:40:57 EDT 2006 */

#include "codelet-dft.h"

#ifdef HAVE_FMA

/* Generated by: ../../../genfft/gen_notw -fma -reorder-insns -schedule-for-pipeline -simd -compact -variables 4 -pipeline-latency 8 -n 4 -name n2sv_4 -with-ostride 1 -include n2s.h -store-multiple 4 */

/*
 * This function contains 16 FP additions, 0 FP multiplications,
 * (or, 16 additions, 0 multiplications, 0 fused multiply/add),
 * 25 stack variables, and 18 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 "n2s.h"

static void n2sv_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 - (2 * VL), ri = ri + ((2 * VL) * ivs), ii = ii + ((2 * VL) * ivs), ro = ro + ((2 * VL) * ovs), io = io + ((2 * VL) * ovs), MAKE_VOLATILE_STRIDE(is), MAKE_VOLATILE_STRIDE(os)) {
        V T1, T2, T7, T8, T4, T5, Tc, Td;
        T1 = LD(&(ri[0]), ivs, &(ri[0]));
        T2 = LD(&(ri[WS(is, 2)]), ivs, &(ri[0]));
        T7 = LD(&(ii[0]), ivs, &(ii[0]));
        T8 = LD(&(ii[WS(is, 2)]), ivs, &(ii[0]));
        T4 = LD(&(ri[WS(is, 1)]), ivs, &(ri[WS(is, 1)]));
        T5 = LD(&(ri[WS(is, 3)]), ivs, &(ri[WS(is, 1)]));
        Tc = LD(&(ii[WS(is, 1)]), ivs, &(ii[WS(is, 1)]));
        Td = LD(&(ii[WS(is, 3)]), ivs, &(ii[WS(is, 1)]));
        {
             V T3, Tb, T9, Tf, T6, Ta, Te, Tg;
             T3 = VADD(T1, T2);
             Tb = VSUB(T1, T2);
             T9 = VSUB(T7, T8);
             Tf = VADD(T7, T8);
             T6 = VADD(T4, T5);
             Ta = VSUB(T4, T5);
             Te = VSUB(Tc, Td);
             Tg = VADD(Tc, Td);
             {
                V Th, Ti, Tj, Tk;
                Th = VADD(Ta, T9);
                STM4(&(io[3]), Th, ovs, &(io[1]));
                Ti = VSUB(T9, Ta);
                STM4(&(io[1]), Ti, ovs, &(io[1]));
                Tj = VADD(T3, T6);
                STM4(&(ro[0]), Tj, ovs, &(ro[0]));
                Tk = VSUB(T3, T6);
                STM4(&(ro[2]), Tk, ovs, &(ro[0]));
                {
                   V Tl, Tm, Tn, To;
                   Tl = VADD(Tf, Tg);
                   STM4(&(io[0]), Tl, ovs, &(io[0]));
                   Tm = VSUB(Tf, Tg);
                   STM4(&(io[2]), Tm, ovs, &(io[0]));
                   STN4(&(io[0]), Tl, Ti, Tm, Th, ovs);
                   Tn = VSUB(Tb, Te);
                   STM4(&(ro[3]), Tn, ovs, &(ro[1]));
                   To = VADD(Tb, Te);
                   STM4(&(ro[1]), To, ovs, &(ro[1]));
                   STN4(&(ro[0]), Tj, To, Tk, Tn, ovs);
                }
             }
        }
     }
}

static const kdft_desc desc = { 4, "n2sv_4", {16, 0, 0, 0}, &GENUS, 0, 1, 0, 0 };
void X(codelet_n2sv_4) (planner *p) {
     X(kdft_register) (p, n2sv_4, &desc);
}

#else                   /* HAVE_FMA */

/* Generated by: ../../../genfft/gen_notw -simd -compact -variables 4 -pipeline-latency 8 -n 4 -name n2sv_4 -with-ostride 1 -include n2s.h -store-multiple 4 */

/*
 * This function contains 16 FP additions, 0 FP multiplications,
 * (or, 16 additions, 0 multiplications, 0 fused multiply/add),
 * 17 stack variables, and 18 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 "n2s.h"

static void n2sv_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 - (2 * VL), ri = ri + ((2 * VL) * ivs), ii = ii + ((2 * VL) * ivs), ro = ro + ((2 * VL) * ovs), io = io + ((2 * VL) * ovs), MAKE_VOLATILE_STRIDE(is), MAKE_VOLATILE_STRIDE(os)) {
        V T3, Tb, T9, Tf, T6, Ta, Te, Tg;
        {
             V T1, T2, T7, T8;
             T1 = LD(&(ri[0]), ivs, &(ri[0]));
             T2 = LD(&(ri[WS(is, 2)]), ivs, &(ri[0]));
             T3 = VADD(T1, T2);
             Tb = VSUB(T1, T2);
             T7 = LD(&(ii[0]), ivs, &(ii[0]));
             T8 = LD(&(ii[WS(is, 2)]), ivs, &(ii[0]));
             T9 = VSUB(T7, T8);
             Tf = VADD(T7, T8);
        }
        {
             V T4, T5, Tc, Td;
             T4 = LD(&(ri[WS(is, 1)]), ivs, &(ri[WS(is, 1)]));
             T5 = LD(&(ri[WS(is, 3)]), ivs, &(ri[WS(is, 1)]));
             T6 = VADD(T4, T5);
             Ta = VSUB(T4, T5);
             Tc = LD(&(ii[WS(is, 1)]), ivs, &(ii[WS(is, 1)]));
             Td = LD(&(ii[WS(is, 3)]), ivs, &(ii[WS(is, 1)]));
             Te = VSUB(Tc, Td);
             Tg = VADD(Tc, Td);
        }
        {
             V Th, Ti, Tj, Tk;
             Th = VSUB(T3, T6);
             STM4(&(ro[2]), Th, ovs, &(ro[0]));
             Ti = VSUB(Tf, Tg);
             STM4(&(io[2]), Ti, ovs, &(io[0]));
             Tj = VADD(T3, T6);
             STM4(&(ro[0]), Tj, ovs, &(ro[0]));
             Tk = VADD(Tf, Tg);
             STM4(&(io[0]), Tk, ovs, &(io[0]));
             {
                V Tl, Tm, Tn, To;
                Tl = VSUB(T9, Ta);
                STM4(&(io[1]), Tl, ovs, &(io[1]));
                Tm = VADD(Tb, Te);
                STM4(&(ro[1]), Tm, ovs, &(ro[1]));
                Tn = VADD(Ta, T9);
                STM4(&(io[3]), Tn, ovs, &(io[1]));
                STN4(&(io[0]), Tk, Tl, Ti, Tn, ovs);
                To = VSUB(Tb, Te);
                STM4(&(ro[3]), To, ovs, &(ro[1]));
                STN4(&(ro[0]), Tj, Tm, Th, To, ovs);
             }
        }
     }
}

static const kdft_desc desc = { 4, "n2sv_4", {16, 0, 0, 0}, &GENUS, 0, 1, 0, 0 };
void X(codelet_n2sv_4) (planner *p) {
     X(kdft_register) (p, n2sv_4, &desc);
}

#endif                        /* HAVE_FMA */

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