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hf_16.c

/*
 * Copyright (c) 2003 Matteo Frigo
 * Copyright (c) 2003 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  5 21:57:07 EDT 2003 */

#include "codelet-rdft.h"

/* Generated by: /homee/stevenj/cvs/fftw3.0.1/genfft/gen_hc2hc -compact -variables 4 -n 16 -dit -name hf_16 -include hf.h */

/*
 * This function contains 174 FP additions, 84 FP multiplications,
 * (or, 136 additions, 46 multiplications, 38 fused multiply/add),
 * 52 stack variables, and 64 memory accesses
 */
/*
 * Generator Id's : 
 * $Id: algsimp.ml,v 1.7 2003/03/15 20:29:42 stevenj Exp $
 * $Id: fft.ml,v 1.2 2003/03/15 20:29:42 stevenj Exp $
 * $Id: gen_hc2hc.ml,v 1.9 2003/04/17 19:25:50 athena Exp $
 */

#include "hf.h"

static const R *hf_16(R *rio, R *iio, const R *W, stride ios, int m, int dist)
{
     DK(KP382683432, +0.382683432365089771728459984030398866761344562);
     DK(KP923879532, +0.923879532511286756128183189396788286822416626);
     DK(KP707106781, +0.707106781186547524400844362104849039284835938);
     int i;
     for (i = m - 2; i > 0; i = i - 2, rio = rio + dist, iio = iio - dist, W = W + 30) {
        E T7, T37, T1t, T2U, Ti, T38, T1w, T2R, Tu, T2s, T1C, T2c, TF, T2t, T1H;
        E T2d, TS, T13, T2w, T2x, T2y, T2z, T1O, T2g, T1T, T2h, T1f, T1q, T2B, T2C;
        E T2D, T2E, T1Z, T2j, T24, T2k;
        {
             E T1, T2T, T6, T2S;
             T1 = rio[0];
             T2T = iio[-WS(ios, 15)];
             {
                E T3, T5, T2, T4;
                T3 = rio[WS(ios, 8)];
                T5 = iio[-WS(ios, 7)];
                T2 = W[14];
                T4 = W[15];
                T6 = FMA(T2, T3, T4 * T5);
                T2S = FNMS(T4, T3, T2 * T5);
             }
             T7 = T1 + T6;
             T37 = T2T - T2S;
             T1t = T1 - T6;
             T2U = T2S + T2T;
        }
        {
             E Tc, T1u, Th, T1v;
             {
                E T9, Tb, T8, Ta;
                T9 = rio[WS(ios, 4)];
                Tb = iio[-WS(ios, 11)];
                T8 = W[6];
                Ta = W[7];
                Tc = FMA(T8, T9, Ta * Tb);
                T1u = FNMS(Ta, T9, T8 * Tb);
             }
             {
                E Te, Tg, Td, Tf;
                Te = rio[WS(ios, 12)];
                Tg = iio[-WS(ios, 3)];
                Td = W[22];
                Tf = W[23];
                Th = FMA(Td, Te, Tf * Tg);
                T1v = FNMS(Tf, Te, Td * Tg);
             }
             Ti = Tc + Th;
             T38 = Tc - Th;
             T1w = T1u - T1v;
             T2R = T1u + T1v;
        }
        {
             E To, T1y, Tt, T1z, T1A, T1B;
             {
                E Tl, Tn, Tk, Tm;
                Tl = rio[WS(ios, 2)];
                Tn = iio[-WS(ios, 13)];
                Tk = W[2];
                Tm = W[3];
                To = FMA(Tk, Tl, Tm * Tn);
                T1y = FNMS(Tm, Tl, Tk * Tn);
             }
             {
                E Tq, Ts, Tp, Tr;
                Tq = rio[WS(ios, 10)];
                Ts = iio[-WS(ios, 5)];
                Tp = W[18];
                Tr = W[19];
                Tt = FMA(Tp, Tq, Tr * Ts);
                T1z = FNMS(Tr, Tq, Tp * Ts);
             }
             Tu = To + Tt;
             T2s = T1y + T1z;
             T1A = T1y - T1z;
             T1B = To - Tt;
             T1C = T1A - T1B;
             T2c = T1B + T1A;
        }
        {
             E Tz, T1E, TE, T1F, T1D, T1G;
             {
                E Tw, Ty, Tv, Tx;
                Tw = rio[WS(ios, 14)];
                Ty = iio[-WS(ios, 1)];
                Tv = W[26];
                Tx = W[27];
                Tz = FMA(Tv, Tw, Tx * Ty);
                T1E = FNMS(Tx, Tw, Tv * Ty);
             }
             {
                E TB, TD, TA, TC;
                TB = rio[WS(ios, 6)];
                TD = iio[-WS(ios, 9)];
                TA = W[10];
                TC = W[11];
                TE = FMA(TA, TB, TC * TD);
                T1F = FNMS(TC, TB, TA * TD);
             }
             TF = Tz + TE;
             T2t = T1E + T1F;
             T1D = Tz - TE;
             T1G = T1E - T1F;
             T1H = T1D + T1G;
             T2d = T1D - T1G;
        }
        {
             E TM, T1K, T12, T1R, TR, T1L, TX, T1Q;
             {
                E TJ, TL, TI, TK;
                TJ = rio[WS(ios, 1)];
                TL = iio[-WS(ios, 14)];
                TI = W[0];
                TK = W[1];
                TM = FMA(TI, TJ, TK * TL);
                T1K = FNMS(TK, TJ, TI * TL);
             }
             {
                E TZ, T11, TY, T10;
                TZ = rio[WS(ios, 13)];
                T11 = iio[-WS(ios, 2)];
                TY = W[24];
                T10 = W[25];
                T12 = FMA(TY, TZ, T10 * T11);
                T1R = FNMS(T10, TZ, TY * T11);
             }
             {
                E TO, TQ, TN, TP;
                TO = rio[WS(ios, 9)];
                TQ = iio[-WS(ios, 6)];
                TN = W[16];
                TP = W[17];
                TR = FMA(TN, TO, TP * TQ);
                T1L = FNMS(TP, TO, TN * TQ);
             }
             {
                E TU, TW, TT, TV;
                TU = rio[WS(ios, 5)];
                TW = iio[-WS(ios, 10)];
                TT = W[8];
                TV = W[9];
                TX = FMA(TT, TU, TV * TW);
                T1Q = FNMS(TV, TU, TT * TW);
             }
             TS = TM + TR;
             T13 = TX + T12;
             T2w = TS - T13;
             T2x = T1K + T1L;
             T2y = T1Q + T1R;
             T2z = T2x - T2y;
             {
                E T1M, T1N, T1P, T1S;
                T1M = T1K - T1L;
                T1N = TX - T12;
                T1O = T1M + T1N;
                T2g = T1M - T1N;
                T1P = TM - TR;
                T1S = T1Q - T1R;
                T1T = T1P - T1S;
                T2h = T1P + T1S;
             }
        }
        {
             E T19, T20, T1p, T1X, T1e, T21, T1k, T1W;
             {
                E T16, T18, T15, T17;
                T16 = rio[WS(ios, 15)];
                T18 = iio[0];
                T15 = W[28];
                T17 = W[29];
                T19 = FMA(T15, T16, T17 * T18);
                T20 = FNMS(T17, T16, T15 * T18);
             }
             {
                E T1m, T1o, T1l, T1n;
                T1m = rio[WS(ios, 11)];
                T1o = iio[-WS(ios, 4)];
                T1l = W[20];
                T1n = W[21];
                T1p = FMA(T1l, T1m, T1n * T1o);
                T1X = FNMS(T1n, T1m, T1l * T1o);
             }
             {
                E T1b, T1d, T1a, T1c;
                T1b = rio[WS(ios, 7)];
                T1d = iio[-WS(ios, 8)];
                T1a = W[12];
                T1c = W[13];
                T1e = FMA(T1a, T1b, T1c * T1d);
                T21 = FNMS(T1c, T1b, T1a * T1d);
             }
             {
                E T1h, T1j, T1g, T1i;
                T1h = rio[WS(ios, 3)];
                T1j = iio[-WS(ios, 12)];
                T1g = W[4];
                T1i = W[5];
                T1k = FMA(T1g, T1h, T1i * T1j);
                T1W = FNMS(T1i, T1h, T1g * T1j);
             }
             T1f = T19 + T1e;
             T1q = T1k + T1p;
             T2B = T1f - T1q;
             T2C = T20 + T21;
             T2D = T1W + T1X;
             T2E = T2C - T2D;
             {
                E T1V, T1Y, T22, T23;
                T1V = T19 - T1e;
                T1Y = T1W - T1X;
                T1Z = T1V - T1Y;
                T2j = T1V + T1Y;
                T22 = T20 - T21;
                T23 = T1k - T1p;
                T24 = T22 + T23;
                T2k = T22 - T23;
             }
        }
        {
             E T1J, T27, T3g, T3i, T26, T3h, T2a, T3d;
             {
                E T1x, T1I, T3e, T3f;
                T1x = T1t - T1w;
                T1I = KP707106781 * (T1C - T1H);
                T1J = T1x + T1I;
                T27 = T1x - T1I;
                T3e = KP707106781 * (T2d - T2c);
                T3f = T38 + T37;
                T3g = T3e + T3f;
                T3i = T3f - T3e;
             }
             {
                E T1U, T25, T28, T29;
                T1U = FMA(KP923879532, T1O, KP382683432 * T1T);
                T25 = FNMS(KP923879532, T24, KP382683432 * T1Z);
                T26 = T1U + T25;
                T3h = T25 - T1U;
                T28 = FNMS(KP923879532, T1T, KP382683432 * T1O);
                T29 = FMA(KP382683432, T24, KP923879532 * T1Z);
                T2a = T28 - T29;
                T3d = T28 + T29;
             }
             iio[-WS(ios, 11)] = T1J - T26;
             rio[WS(ios, 11)] = T3d - T3g;
             rio[WS(ios, 3)] = T1J + T26;
             iio[-WS(ios, 3)] = T3d + T3g;
             iio[-WS(ios, 15)] = T27 - T2a;
             rio[WS(ios, 15)] = T3h - T3i;
             rio[WS(ios, 7)] = T27 + T2a;
             iio[-WS(ios, 7)] = T3h + T3i;
        }
        {
             E T2v, T2H, T32, T34, T2G, T33, T2K, T2Z;
             {
                E T2r, T2u, T30, T31;
                T2r = T7 - Ti;
                T2u = T2s - T2t;
                T2v = T2r + T2u;
                T2H = T2r - T2u;
                T30 = TF - Tu;
                T31 = T2U - T2R;
                T32 = T30 + T31;
                T34 = T31 - T30;
             }
             {
                E T2A, T2F, T2I, T2J;
                T2A = T2w + T2z;
                T2F = T2B - T2E;
                T2G = KP707106781 * (T2A + T2F);
                T33 = KP707106781 * (T2F - T2A);
                T2I = T2z - T2w;
                T2J = T2B + T2E;
                T2K = KP707106781 * (T2I - T2J);
                T2Z = KP707106781 * (T2I + T2J);
             }
             iio[-WS(ios, 10)] = T2v - T2G;
             rio[WS(ios, 10)] = T2Z - T32;
             rio[WS(ios, 2)] = T2v + T2G;
             iio[-WS(ios, 2)] = T2Z + T32;
             iio[-WS(ios, 14)] = T2H - T2K;
             rio[WS(ios, 14)] = T33 - T34;
             rio[WS(ios, 6)] = T2H + T2K;
             iio[-WS(ios, 6)] = T33 + T34;
        }
        {
             E T2f, T2n, T3a, T3c, T2m, T3b, T2q, T35;
             {
                E T2b, T2e, T36, T39;
                T2b = T1t + T1w;
                T2e = KP707106781 * (T2c + T2d);
                T2f = T2b + T2e;
                T2n = T2b - T2e;
                T36 = KP707106781 * (T1C + T1H);
                T39 = T37 - T38;
                T3a = T36 + T39;
                T3c = T39 - T36;
             }
             {
                E T2i, T2l, T2o, T2p;
                T2i = FMA(KP382683432, T2g, KP923879532 * T2h);
                T2l = FNMS(KP382683432, T2k, KP923879532 * T2j);
                T2m = T2i + T2l;
                T3b = T2l - T2i;
                T2o = FNMS(KP382683432, T2h, KP923879532 * T2g);
                T2p = FMA(KP923879532, T2k, KP382683432 * T2j);
                T2q = T2o - T2p;
                T35 = T2o + T2p;
             }
             iio[-WS(ios, 9)] = T2f - T2m;
             rio[WS(ios, 9)] = T35 - T3a;
             rio[WS(ios, 1)] = T2f + T2m;
             iio[-WS(ios, 1)] = T35 + T3a;
             iio[-WS(ios, 13)] = T2n - T2q;
             rio[WS(ios, 13)] = T3b - T3c;
             rio[WS(ios, 5)] = T2n + T2q;
             iio[-WS(ios, 5)] = T3b + T3c;
        }
        {
             E TH, T2L, T2W, T2Y, T1s, T2X, T2O, T2P;
             {
                E Tj, TG, T2Q, T2V;
                Tj = T7 + Ti;
                TG = Tu + TF;
                TH = Tj + TG;
                T2L = Tj - TG;
                T2Q = T2s + T2t;
                T2V = T2R + T2U;
                T2W = T2Q + T2V;
                T2Y = T2V - T2Q;
             }
             {
                E T14, T1r, T2M, T2N;
                T14 = TS + T13;
                T1r = T1f + T1q;
                T1s = T14 + T1r;
                T2X = T1r - T14;
                T2M = T2x + T2y;
                T2N = T2C + T2D;
                T2O = T2M - T2N;
                T2P = T2M + T2N;
             }
             iio[-WS(ios, 8)] = TH - T1s;
             rio[WS(ios, 8)] = T2P - T2W;
             rio[0] = TH + T1s;
             iio[0] = T2P + T2W;
             iio[-WS(ios, 12)] = T2L - T2O;
             rio[WS(ios, 12)] = T2X - T2Y;
             rio[WS(ios, 4)] = T2L + T2O;
             iio[-WS(ios, 4)] = T2X + T2Y;
        }
     }
     return W;
}

static const tw_instr twinstr[] = {
     {TW_FULL, 0, 16},
     {TW_NEXT, 1, 0}
};

static const hc2hc_desc desc = { 16, "hf_16", twinstr, {136, 46, 38, 0}, &GENUS, 0, 0, 0 };

void X(codelet_hf_16) (planner *p) {
     X(khc2hc_dit_register) (p, hf_16, &desc);
}

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