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t1_2.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 13:58:08 EDT 2006 */

#include "codelet-dft.h"

#ifdef HAVE_FMA

/* Generated by: ../../../genfft/gen_twiddle -fma -reorder-insns -schedule-for-pipeline -compact -variables 4 -pipeline-latency 4 -n 2 -name t1_2 -include t.h */

/*
 * This function contains 6 FP additions, 4 FP multiplications,
 * (or, 4 additions, 2 multiplications, 2 fused multiply/add),
 * 11 stack variables, and 8 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.ml,v 1.24 2006-02-12 23:34:12 athena Exp $
 */

#include "t.h"

static const R *t1_2(R *ri, R *ii, const R *W, stride ios, INT m, INT dist)
{
     INT i;
     for (i = m; i > 0; i = i - 1, ri = ri + dist, ii = ii + dist, W = W + 2, MAKE_VOLATILE_STRIDE(ios)) {
        E T1, Ta, T3, T6, T2, T5;
        T1 = ri[0];
        Ta = ii[0];
        T3 = ri[WS(ios, 1)];
        T6 = ii[WS(ios, 1)];
        T2 = W[0];
        T5 = W[1];
        {
             E T8, T4, T9, T7;
             T8 = T2 * T6;
             T4 = T2 * T3;
             T9 = FNMS(T5, T3, T8);
             T7 = FMA(T5, T6, T4);
             ii[0] = T9 + Ta;
             ii[WS(ios, 1)] = Ta - T9;
             ri[0] = T1 + T7;
             ri[WS(ios, 1)] = T1 - T7;
        }
     }
     return W;
}

static const tw_instr twinstr[] = {
     {TW_FULL, 0, 2},
     {TW_NEXT, 1, 0}
};

static const ct_desc desc = { 2, "t1_2", twinstr, &GENUS, {4, 2, 2, 0}, 0, 0, 0 };

void X(codelet_t1_2) (planner *p) {
     X(kdft_dit_register) (p, t1_2, &desc);
}
#else                   /* HAVE_FMA */

/* Generated by: ../../../genfft/gen_twiddle -compact -variables 4 -pipeline-latency 4 -n 2 -name t1_2 -include t.h */

/*
 * This function contains 6 FP additions, 4 FP multiplications,
 * (or, 4 additions, 2 multiplications, 2 fused multiply/add),
 * 9 stack variables, and 8 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.ml,v 1.24 2006-02-12 23:34:12 athena Exp $
 */

#include "t.h"

static const R *t1_2(R *ri, R *ii, const R *W, stride ios, INT m, INT dist)
{
     INT i;
     for (i = m; i > 0; i = i - 1, ri = ri + dist, ii = ii + dist, W = W + 2, MAKE_VOLATILE_STRIDE(ios)) {
        E T1, T8, T6, T7;
        T1 = ri[0];
        T8 = ii[0];
        {
             E T3, T5, T2, T4;
             T3 = ri[WS(ios, 1)];
             T5 = ii[WS(ios, 1)];
             T2 = W[0];
             T4 = W[1];
             T6 = FMA(T2, T3, T4 * T5);
             T7 = FNMS(T4, T3, T2 * T5);
        }
        ri[WS(ios, 1)] = T1 - T6;
        ii[WS(ios, 1)] = T8 - T7;
        ri[0] = T1 + T6;
        ii[0] = T7 + T8;
     }
     return W;
}

static const tw_instr twinstr[] = {
     {TW_FULL, 0, 2},
     {TW_NEXT, 1, 0}
};

static const ct_desc desc = { 2, "t1_2", twinstr, &GENUS, {4, 2, 2, 0}, 0, 0, 0 };

void X(codelet_t1_2) (planner *p) {
     X(kdft_dit_register) (p, t1_2, &desc);
}
#endif                        /* HAVE_FMA */

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