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t3bv_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 22:33:14 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 -twiddle-log3 -precompute-twiddles -no-generate-bytw -n 4 -name t3bv_4 -include t3b.h -sign 1 */

/*
 * This function contains 12 FP additions, 10 FP multiplications,
 * (or, 10 additions, 8 multiplications, 2 fused multiply/add),
 * 16 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_c.ml,v 1.14 2006-02-12 23:34:12 athena Exp $
 */

#include "t3b.h"

static const R *t3bv_4(R *ri, R *ii, const R *W, stride ios, INT m, INT dist)
{
     INT i;
     R *x;
     x = ii;
     for (i = m; i > 0; i = i - VL, x = x + (VL * dist), W = W + (TWVL * 4), MAKE_VOLATILE_STRIDE(ios)) {
        V T2, T3, T1, Ta, T5, T8;
        T2 = LDW(&(W[0]));
        T3 = LDW(&(W[TWVL * 2]));
        T1 = LD(&(x[0]), dist, &(x[0]));
        Ta = LD(&(x[WS(ios, 3)]), dist, &(x[WS(ios, 1)]));
        T5 = LD(&(x[WS(ios, 2)]), dist, &(x[0]));
        T8 = LD(&(x[WS(ios, 1)]), dist, &(x[WS(ios, 1)]));
        {
             V T4, Tb, T9, T6;
             T4 = VZMULJ(T2, T3);
             Tb = VZMUL(T3, Ta);
             T9 = VZMUL(T2, T8);
             T6 = VZMUL(T4, T5);
             {
                V Tc, Te, T7, Td;
                Tc = VSUB(T9, Tb);
                Te = VADD(T9, Tb);
                T7 = VSUB(T1, T6);
                Td = VADD(T1, T6);
                ST(&(x[0]), VADD(Td, Te), dist, &(x[0]));
                ST(&(x[WS(ios, 2)]), VSUB(Td, Te), dist, &(x[0]));
                ST(&(x[WS(ios, 1)]), VFMAI(Tc, T7), dist, &(x[WS(ios, 1)]));
                ST(&(x[WS(ios, 3)]), VFNMSI(Tc, T7), dist, &(x[WS(ios, 1)]));
             }
        }
     }
     return W;
}

static const tw_instr twinstr[] = {
     VTW(1),
     VTW(3),
     {TW_NEXT, VL, 0}
};

static const ct_desc desc = { 4, "t3bv_4", twinstr, &GENUS, {10, 8, 2, 0}, 0, 0, 0 };

void X(codelet_t3bv_4) (planner *p) {
     X(kdft_dit_register) (p, t3bv_4, &desc);
}
#else                   /* HAVE_FMA */

/* Generated by: ../../../genfft/gen_twiddle_c -simd -compact -variables 4 -pipeline-latency 8 -twiddle-log3 -precompute-twiddles -no-generate-bytw -n 4 -name t3bv_4 -include t3b.h -sign 1 */

/*
 * This function contains 12 FP additions, 8 FP multiplications,
 * (or, 12 additions, 8 multiplications, 0 fused multiply/add),
 * 16 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_c.ml,v 1.14 2006-02-12 23:34:12 athena Exp $
 */

#include "t3b.h"

static const R *t3bv_4(R *ri, R *ii, const R *W, stride ios, INT m, INT dist)
{
     INT i;
     R *x;
     x = ii;
     for (i = m; i > 0; i = i - VL, x = x + (VL * dist), W = W + (TWVL * 4), MAKE_VOLATILE_STRIDE(ios)) {
        V T2, T3, T4;
        T2 = LDW(&(W[0]));
        T3 = LDW(&(W[TWVL * 2]));
        T4 = VZMULJ(T2, T3);
        {
             V T1, Tb, T6, T9, Ta, T5, T8;
             T1 = LD(&(x[0]), dist, &(x[0]));
             Ta = LD(&(x[WS(ios, 3)]), dist, &(x[WS(ios, 1)]));
             Tb = VZMUL(T3, Ta);
             T5 = LD(&(x[WS(ios, 2)]), dist, &(x[0]));
             T6 = VZMUL(T4, T5);
             T8 = LD(&(x[WS(ios, 1)]), dist, &(x[WS(ios, 1)]));
             T9 = VZMUL(T2, T8);
             {
                V T7, Tc, Td, Te;
                T7 = VSUB(T1, T6);
                Tc = VBYI(VSUB(T9, Tb));
                ST(&(x[WS(ios, 3)]), VSUB(T7, Tc), dist, &(x[WS(ios, 1)]));
                ST(&(x[WS(ios, 1)]), VADD(T7, Tc), dist, &(x[WS(ios, 1)]));
                Td = VADD(T1, T6);
                Te = VADD(T9, Tb);
                ST(&(x[WS(ios, 2)]), VSUB(Td, Te), dist, &(x[0]));
                ST(&(x[0]), VADD(Td, Te), dist, &(x[0]));
             }
        }
     }
     return W;
}

static const tw_instr twinstr[] = {
     VTW(1),
     VTW(3),
     {TW_NEXT, VL, 0}
};

static const ct_desc desc = { 4, "t3bv_4", twinstr, &GENUS, {12, 8, 0, 0}, 0, 0, 0 };

void X(codelet_t3bv_4) (planner *p) {
     X(kdft_dit_register) (p, t3bv_4, &desc);
}
#endif                        /* HAVE_FMA */

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