hf_15.c

快速fft变换

	       }
	  }
	  ci[WS(rs, 9)] = T3y + T3v;
	  T3z = FNMS(KP250000000, T3y, T3v);
	  T3F = FMA(KP559016994, T3A, T3z);
	  T3B = FNMS(KP559016994, T3A, T3z);
	  cr[WS(rs, 14)] = -(FMA(KP951056516, T3E, T3B));
	  cr[WS(rs, 11)] = FMS(KP951056516, T3E, T3B);
	  ci[WS(rs, 12)] = FMA(KP951056516, T3G, T3F);
	  cr[WS(rs, 8)] = FMS(KP951056516, T3G, T3F);
     }
}

static const tw_instr twinstr[] = {
     {TW_FULL, 1, 15},
     {TW_NEXT, 1, 0}
};

static const hc2hc_desc desc = { 15, "hf_15", twinstr, &GENUS, {72, 28, 112, 0} };

void X(codelet_hf_15) (planner *p) {
     X(khc2hc_register) (p, hf_15, &desc);
}
#else				/* HAVE_FMA */

/* Generated by: ../../../genfft/gen_hc2hc -compact -variables 4 -pipeline-latency 4 -n 15 -dit -name hf_15 -include hf.h */

/*
 * This function contains 184 FP additions, 112 FP multiplications,
 * (or, 128 additions, 56 multiplications, 56 fused multiply/add),
 * 65 stack variables, 6 constants, and 60 memory accesses
 */
#include "hf.h"

static void hf_15(R *cr, R *ci, const R *W, stride rs, INT mb, INT me, INT ms)
{
     DK(KP587785252, +0.587785252292473129168705954639072768597652438);
     DK(KP951056516, +0.951056516295153572116439333379382143405698634);
     DK(KP250000000, +0.250000000000000000000000000000000000000000000);
     DK(KP559016994, +0.559016994374947424102293417182819058860154590);
     DK(KP500000000, +0.500000000000000000000000000000000000000000000);
     DK(KP866025403, +0.866025403784438646763723170752936183471402627);
     INT m;
     for (m = mb, W = W + ((mb - 1) * 28); m < me; m = m + 1, cr = cr + ms, ci = ci - ms, W = W + 28, MAKE_VOLATILE_STRIDE(rs)) {
	  E T1q, T2Q, Td, T1n, T2T, T3l, T13, T1k, T1l, T2E, T2F, T3j, T1H, T1T, T2k;
	  E T2w, T2f, T2v, T1M, T1U, Tu, TL, TM, T2H, T2I, T3i, T1w, T1Q, T29, T2t;
	  E T24, T2s, T1B, T1R;
	  {
	       E T1, T2R, T6, T1o, Tb, T1p, Tc, T2S;
	       T1 = cr[0];
	       T2R = ci[0];
	       {
		    E T3, T5, T2, T4;
		    T3 = cr[WS(rs, 5)];
		    T5 = ci[WS(rs, 5)];
		    T2 = W[8];
		    T4 = W[9];
		    T6 = FMA(T2, T3, T4 * T5);
		    T1o = FNMS(T4, T3, T2 * T5);
	       }
	       {
		    E T8, Ta, T7, T9;
		    T8 = cr[WS(rs, 10)];
		    Ta = ci[WS(rs, 10)];
		    T7 = W[18];
		    T9 = W[19];
		    Tb = FMA(T7, T8, T9 * Ta);
		    T1p = FNMS(T9, T8, T7 * Ta);
	       }
	       T1q = KP866025403 * (T1o - T1p);
	       T2Q = KP866025403 * (Tb - T6);
	       Tc = T6 + Tb;
	       Td = T1 + Tc;
	       T1n = FNMS(KP500000000, Tc, T1);
	       T2S = T1o + T1p;
	       T2T = FNMS(KP500000000, T2S, T2R);
	       T3l = T2S + T2R;
	  }
	  {
	       E TR, T2c, T18, T2h, TW, T1E, T11, T1F, T12, T2d, T1d, T1J, T1i, T1K, T1j;
	       E T2i;
	       {
		    E TO, TQ, TN, TP;
		    TO = cr[WS(rs, 6)];
		    TQ = ci[WS(rs, 6)];
		    TN = W[10];
		    TP = W[11];
		    TR = FMA(TN, TO, TP * TQ);
		    T2c = FNMS(TP, TO, TN * TQ);
	       }
	       {
		    E T15, T17, T14, T16;
		    T15 = cr[WS(rs, 9)];
		    T17 = ci[WS(rs, 9)];
		    T14 = W[16];
		    T16 = W[17];
		    T18 = FMA(T14, T15, T16 * T17);
		    T2h = FNMS(T16, T15, T14 * T17);
	       }
	       {
		    E TT, TV, TS, TU;
		    TT = cr[WS(rs, 11)];
		    TV = ci[WS(rs, 11)];
		    TS = W[20];
		    TU = W[21];
		    TW = FMA(TS, TT, TU * TV);
		    T1E = FNMS(TU, TT, TS * TV);
	       }
	       {
		    E TY, T10, TX, TZ;
		    TY = cr[WS(rs, 1)];
		    T10 = ci[WS(rs, 1)];
		    TX = W[0];
		    TZ = W[1];
		    T11 = FMA(TX, TY, TZ * T10);
		    T1F = FNMS(TZ, TY, TX * T10);
	       }
	       T12 = TW + T11;
	       T2d = T1E + T1F;
	       {
		    E T1a, T1c, T19, T1b;
		    T1a = cr[WS(rs, 14)];
		    T1c = ci[WS(rs, 14)];
		    T19 = W[26];
		    T1b = W[27];
		    T1d = FMA(T19, T1a, T1b * T1c);
		    T1J = FNMS(T1b, T1a, T19 * T1c);
	       }
	       {
		    E T1f, T1h, T1e, T1g;
		    T1f = cr[WS(rs, 4)];
		    T1h = ci[WS(rs, 4)];
		    T1e = W[6];
		    T1g = W[7];
		    T1i = FMA(T1e, T1f, T1g * T1h);
		    T1K = FNMS(T1g, T1f, T1e * T1h);
	       }
	       T1j = T1d + T1i;
	       T2i = T1J + T1K;
	       {
		    E T1D, T1G, T2g, T2j;
		    T13 = TR + T12;
		    T1k = T18 + T1j;
		    T1l = T13 + T1k;
		    T2E = T2c + T2d;
		    T2F = T2h + T2i;
		    T3j = T2E + T2F;
		    T1D = FNMS(KP500000000, T12, TR);
		    T1G = KP866025403 * (T1E - T1F);
		    T1H = T1D - T1G;
		    T1T = T1D + T1G;
		    T2g = KP866025403 * (T1d - T1i);
		    T2j = FNMS(KP500000000, T2i, T2h);
		    T2k = T2g - T2j;
		    T2w = T2g + T2j;
		    {
			 E T2b, T2e, T1I, T1L;
			 T2b = KP866025403 * (T11 - TW);
			 T2e = FNMS(KP500000000, T2d, T2c);
			 T2f = T2b + T2e;
			 T2v = T2e - T2b;
			 T1I = FNMS(KP500000000, T1j, T18);
			 T1L = KP866025403 * (T1J - T1K);
			 T1M = T1I - T1L;
			 T1U = T1I + T1L;
		    }
	       }
	  }
	  {
	       E Ti, T21, Tz, T26, Tn, T1t, Ts, T1u, Tt, T22, TE, T1y, TJ, T1z, TK;
	       E T27;
	       {
		    E Tf, Th, Te, Tg;
		    Tf = cr[WS(rs, 3)];
		    Th = ci[WS(rs, 3)];
		    Te = W[4];
		    Tg = W[5];
		    Ti = FMA(Te, Tf, Tg * Th);
		    T21 = FNMS(Tg, Tf, Te * Th);
	       }
	       {
		    E Tw, Ty, Tv, Tx;
		    Tw = cr[WS(rs, 12)];
		    Ty = ci[WS(rs, 12)];
		    Tv = W[22];
		    Tx = W[23];
		    Tz = FMA(Tv, Tw, Tx * Ty);
		    T26 = FNMS(Tx, Tw, Tv * Ty);
	       }
	       {
		    E Tk, Tm, Tj, Tl;
		    Tk = cr[WS(rs, 8)];
		    Tm = ci[WS(rs, 8)];
		    Tj = W[14];
		    Tl = W[15];
		    Tn = FMA(Tj, Tk, Tl * Tm);
		    T1t = FNMS(Tl, Tk, Tj * Tm);
	       }
	       {
		    E Tp, Tr, To, Tq;
		    Tp = cr[WS(rs, 13)];
		    Tr = ci[WS(rs, 13)];
		    To = W[24];
		    Tq = W[25];
		    Ts = FMA(To, Tp, Tq * Tr);
		    T1u = FNMS(Tq, Tp, To * Tr);
	       }
	       Tt = Tn + Ts;
	       T22 = T1t + T1u;
	       {
		    E TB, TD, TA, TC;
		    TB = cr[WS(rs, 2)];
		    TD = ci[WS(rs, 2)];
		    TA = W[2];
		    TC = W[3];
		    TE = FMA(TA, TB, TC * TD);
		    T1y = FNMS(TC, TB, TA * TD);
	       }
	       {
		    E TG, TI, TF, TH;
		    TG = cr[WS(rs, 7)];
		    TI = ci[WS(rs, 7)];
		    TF = W[12];
		    TH = W[13];
		    TJ = FMA(TF, TG, TH * TI);
		    T1z = FNMS(TH, TG, TF * TI);
	       }
	       TK = TE + TJ;
	       T27 = T1y + T1z;
	       {
		    E T1s, T1v, T25, T28;
		    Tu = Ti + Tt;
		    TL = Tz + TK;
		    TM = Tu + TL;
		    T2H = T21 + T22;
		    T2I = T26 + T27;
		    T3i = T2H + T2I;
		    T1s = FNMS(KP500000000, Tt, Ti);
		    T1v = KP866025403 * (T1t - T1u);
		    T1w = T1s - T1v;
		    T1Q = T1s + T1v;
		    T25 = KP866025403 * (TJ - TE);
		    T28 = FNMS(KP500000000, T27, T26);
		    T29 = T25 + T28;
		    T2t = T28 - T25;
		    {
			 E T20, T23, T1x, T1A;
			 T20 = KP866025403 * (Ts - Tn);
			 T23 = FNMS(KP500000000, T22, T21);
			 T24 = T20 + T23;
			 T2s = T23 - T20;
			 T1x = FNMS(KP500000000, TK, Tz);
			 T1A = KP866025403 * (T1y - T1z);
			 T1B = T1x - T1A;
			 T1R = T1x + T1A;
		    }
	       }
	  }
	  {
	       E T2C, T1m, T2B, T2K, T2M, T2G, T2J, T2L, T2D;
	       T2C = KP559016994 * (TM - T1l);
	       T1m = TM + T1l;
	       T2B = FNMS(KP250000000, T1m, Td);
	       T2G = T2E - T2F;
	       T2J = T2H - T2I;
	       T2K = FNMS(KP587785252, T2J, KP951056516 * T2G);
	       T2M = FMA(KP951056516, T2J, KP587785252 * T2G);
	       cr[0] = Td + T1m;
	       T2L = T2C + T2B;
	       ci[WS(rs, 5)] = T2L - T2M;
	       cr[WS(rs, 6)] = T2L + T2M;
	       T2D = T2B - T2C;
	       ci[WS(rs, 2)] = T2D - T2K;
	       cr[WS(rs, 3)] = T2D + T2K;
	  }
	  {
	       E T3k, T3m, T3n, T3h, T3p, T3f, T3g, T3q, T3o;
	       T3k = KP559016994 * (T3i - T3j);
	       T3m = T3i + T3j;
	       T3n = FNMS(KP250000000, T3m, T3l);
	       T3f = T1k - T13;
	       T3g = Tu - TL;
	       T3h = FNMS(KP951056516, T3g, KP587785252 * T3f);
	       T3p = FMA(KP587785252, T3g, KP951056516 * T3f);
	       ci[WS(rs, 14)] = T3m + T3l;
	       T3q = T3n - T3k;
	       cr[WS(rs, 12)] = T3p - T3q;
	       ci[WS(rs, 11)] = T3p + T3q;
	       T3o = T3k + T3n;
	       cr[WS(rs, 9)] = T3h - T3o;
	       ci[WS(rs, 8)] = T3h + T3o;
	  }
	  {
	       E T2y, T2A, T1r, T1O, T2p, T2q, T2z, T2r;
	       {
		    E T2u, T2x, T1C, T1N;
		    T2u = T2s - T2t;
		    T2x = T2v - T2w;
		    T2y = FMA(KP951056516, T2u, KP587785252 * T2x);
		    T2A = FNMS(KP587785252, T2u, KP951056516 * T2x);
		    T1r = T1n - T1q;
		    T1C = T1w + T1B;
		    T1N = T1H + T1M;
		    T1O = T1C + T1N;
		    T2p = KP559016994 * (T1C - T1N);
		    T2q = FNMS(KP250000000, T1O, T1r);
	       }
	       cr[WS(rs, 5)] = T1r + T1O;
	       T2z = T2q - T2p;
	       cr[WS(rs, 2)] = T2z - T2A;
	       ci[WS(rs, 6)] = T2z + T2A;
	       T2r = T2p + T2q;
	       ci[0] = T2r - T2y;
	       ci[WS(rs, 3)] = T2r + T2y;
	  }
	  {
	       E T35, T3d, T39, T3a, T38, T3b, T3e, T3c;
	       {
		    E T33, T34, T36, T37;
		    T33 = T1w - T1B;
		    T34 = T1H - T1M;
		    T35 = FMA(KP951056516, T33, KP587785252 * T34);
		    T3d = FNMS(KP587785252, T33, KP951056516 * T34);
		    T39 = T2T - T2Q;
		    T36 = T2v + T2w;
		    T37 = T2s + T2t;
		    T3a = T37 + T36;
		    T38 = KP559016994 * (T36 - T37);
		    T3b = FNMS(KP250000000, T3a, T39);
	       }
	       ci[WS(rs, 9)] = T3a + T39;
	       T3e = T38 + T3b;
	       cr[WS(rs, 8)] = T3d - T3e;
	       ci[WS(rs, 12)] = T3d + T3e;
	       T3c = T38 - T3b;
	       cr[WS(rs, 11)] = T35 + T3c;
	       cr[WS(rs, 14)] = T3c - T35;
	  }
	  {
	       E T2X, T31, T2U, T2P, T2Y, T2Z, T32, T30;
	       {
		    E T2V, T2W, T2N, T2O;
		    T2V = T1T - T1U;
		    T2W = T1Q - T1R;
		    T2X = FNMS(KP587785252, T2W, KP951056516 * T2V);
		    T31 = FMA(KP951056516, T2W, KP587785252 * T2V);
		    T2U = T2Q + T2T;
		    T2N = T2k - T2f;
		    T2O = T24 + T29;
		    T2P = T2N - T2O;
		    T2Y = FMA(KP250000000, T2P, T2U);
		    T2Z = KP559016994 * (T2O + T2N);
	       }
	       cr[WS(rs, 10)] = T2P - T2U;
	       T32 = T2Z + T2Y;
	       ci[WS(rs, 10)] = T31 + T32;
	       ci[WS(rs, 13)] = T32 - T31;
	       T30 = T2Y - T2Z;
	       cr[WS(rs, 13)] = T2X - T30;
	       ci[WS(rs, 7)] = T2X + T30;
	  }
	  {
	       E T2m, T2o, T1P, T1W, T1X, T1Y, T1Z, T2n;
	       {
		    E T2a, T2l, T1S, T1V;
		    T2a = T24 - T29;
		    T2l = T2f + T2k;
		    T2m = FMA(KP951056516, T2a, KP587785252 * T2l);
		    T2o = FNMS(KP587785252, T2a, KP951056516 * T2l);
		    T1P = T1n + T1q;
		    T1S = T1Q + T1R;
		    T1V = T1T + T1U;
		    T1W = T1S + T1V;
		    T1X = KP559016994 * (T1S - T1V);
		    T1Y = FNMS(KP250000000, T1W, T1P);
	       }
	       ci[WS(rs, 4)] = T1P + T1W;
	       T1Z = T1X + T1Y;
	       cr[WS(rs, 4)] = T1Z - T2m;
	       cr[WS(rs, 1)] = T1Z + T2m;
	       T2n = T1Y - T1X;
	       cr[WS(rs, 7)] = T2n - T2o;
	       ci[WS(rs, 1)] = T2n + T2o;
	  }
     }
}

static const tw_instr twinstr[] = {
     {TW_FULL, 1, 15},
     {TW_NEXT, 1, 0}
};

static const hc2hc_desc desc = { 15, "hf_15", twinstr, &GENUS, {128, 56, 56, 0} };

void X(codelet_hf_15) (planner *p) {
     X(khc2hc_register) (p, hf_15, &desc);
}
#endif				/* HAVE_FMA */