t3fv_20.c

用于DFT计算的c语言的库的最新版本,包含丰富的函数库.

     {TW_NEXT, VL, 0}
};

static const ct_desc desc = { 20, "t3fv_20", twinstr, &GENUS, {92, 72, 46, 0}, 0, 0, 0 };

void X(codelet_t3fv_20) (planner *p) {
     X(kdft_dit_register) (p, t3fv_20, &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 20 -name t3fv_20 -include t3f.h */

/*
 * This function contains 138 FP additions, 92 FP multiplications,
 * (or, 126 additions, 80 multiplications, 12 fused multiply/add),
 * 73 stack variables, 4 constants, and 40 memory accesses
 */
#include "t3f.h"

static void t3fv_20(R *ri, R *ii, const R *W, stride rs, INT mb, INT me, INT ms)
{
     DVK(KP587785252, +0.587785252292473129168705954639072768597652438);
     DVK(KP951056516, +0.951056516295153572116439333379382143405698634);
     DVK(KP250000000, +0.250000000000000000000000000000000000000000000);
     DVK(KP559016994, +0.559016994374947424102293417182819058860154590);
     INT m;
     R *x;
     x = ri;
     for (m = mb, W = W + (mb * ((TWVL / VL) * 8)); m < me; m = m + VL, x = x + (VL * ms), W = W + (TWVL * 8), MAKE_VOLATILE_STRIDE(rs)) {
	  V T2, T8, T9, TA, T3, Tc, T4, TZ, T18, Tl, Tq, Tx, TU, Td, Te;
	  V T15, Ti, Tt, TJ;
	  T2 = LDW(&(W[0]));
	  T8 = LDW(&(W[TWVL * 2]));
	  T9 = VZMUL(T2, T8);
	  TA = VZMULJ(T2, T8);
	  T3 = LDW(&(W[TWVL * 4]));
	  Tc = VZMULJ(T9, T3);
	  T4 = VZMUL(T2, T3);
	  TZ = VZMUL(T9, T3);
	  T18 = VZMULJ(TA, T3);
	  Tl = VZMULJ(T8, T3);
	  Tq = VZMULJ(T2, T3);
	  Tx = VZMUL(T8, T3);
	  TU = VZMUL(TA, T3);
	  Td = LDW(&(W[TWVL * 6]));
	  Te = VZMULJ(Tc, Td);
	  T15 = VZMULJ(TA, Td);
	  Ti = VZMULJ(T8, Td);
	  Tt = VZMULJ(T2, Td);
	  TJ = VZMULJ(T9, Td);
	  {
	       V T7, TM, T1U, T2d, T1i, T1p, T1q, T1j, Tp, TE, TF, T26, T27, T2b, T1M;
	       V T1P, T1V, TY, T1c, T1d, T23, T24, T2a, T1F, T1I, T1W, TG, T1e;
	       {
		    V T1, TL, T6, TI, TK, T5, TH, T1S, T1T;
		    T1 = LD(&(x[0]), ms, &(x[0]));
		    TK = LD(&(x[WS(rs, 15)]), ms, &(x[WS(rs, 1)]));
		    TL = VZMULJ(TJ, TK);
		    T5 = LD(&(x[WS(rs, 10)]), ms, &(x[0]));
		    T6 = VZMULJ(T4, T5);
		    TH = LD(&(x[WS(rs, 5)]), ms, &(x[WS(rs, 1)]));
		    TI = VZMULJ(Tc, TH);
		    T7 = VSUB(T1, T6);
		    TM = VSUB(TI, TL);
		    T1S = VADD(T1, T6);
		    T1T = VADD(TI, TL);
		    T1U = VSUB(T1S, T1T);
		    T2d = VADD(T1S, T1T);
	       }
	       {
		    V Th, T1K, T14, T1E, T1b, T1H, To, T1N, Tw, T1D, TR, T1L, TX, T1O, TD;
		    V T1G;
		    {
			 V Tb, Tg, Ta, Tf;
			 Ta = LD(&(x[WS(rs, 4)]), ms, &(x[0]));
			 Tb = VZMULJ(T9, Ta);
			 Tf = LD(&(x[WS(rs, 14)]), ms, &(x[0]));
			 Tg = VZMULJ(Te, Tf);
			 Th = VSUB(Tb, Tg);
			 T1K = VADD(Tb, Tg);
		    }
		    {
			 V T11, T13, T10, T12;
			 T10 = LD(&(x[WS(rs, 13)]), ms, &(x[WS(rs, 1)]));
			 T11 = VZMULJ(TZ, T10);
			 T12 = LD(&(x[WS(rs, 3)]), ms, &(x[WS(rs, 1)]));
			 T13 = VZMULJ(T8, T12);
			 T14 = VSUB(T11, T13);
			 T1E = VADD(T11, T13);
		    }
		    {
			 V T17, T1a, T16, T19;
			 T16 = LD(&(x[WS(rs, 17)]), ms, &(x[WS(rs, 1)]));
			 T17 = VZMULJ(T15, T16);
			 T19 = LD(&(x[WS(rs, 7)]), ms, &(x[WS(rs, 1)]));
			 T1a = VZMULJ(T18, T19);
			 T1b = VSUB(T17, T1a);
			 T1H = VADD(T17, T1a);
		    }
		    {
			 V Tk, Tn, Tj, Tm;
			 Tj = LD(&(x[WS(rs, 16)]), ms, &(x[0]));
			 Tk = VZMULJ(Ti, Tj);
			 Tm = LD(&(x[WS(rs, 6)]), ms, &(x[0]));
			 Tn = VZMULJ(Tl, Tm);
			 To = VSUB(Tk, Tn);
			 T1N = VADD(Tk, Tn);
		    }
		    {
			 V Ts, Tv, Tr, Tu;
			 Tr = LD(&(x[WS(rs, 8)]), ms, &(x[0]));
			 Ts = VZMULJ(Tq, Tr);
			 Tu = LD(&(x[WS(rs, 18)]), ms, &(x[0]));
			 Tv = VZMULJ(Tt, Tu);
			 Tw = VSUB(Ts, Tv);
			 T1D = VADD(Ts, Tv);
		    }
		    {
			 V TO, TQ, TN, TP;
			 TN = LD(&(x[WS(rs, 9)]), ms, &(x[WS(rs, 1)]));
			 TO = VZMULJ(T3, TN);
			 TP = LD(&(x[WS(rs, 19)]), ms, &(x[WS(rs, 1)]));
			 TQ = VZMULJ(Td, TP);
			 TR = VSUB(TO, TQ);
			 T1L = VADD(TO, TQ);
		    }
		    {
			 V TT, TW, TS, TV;
			 TS = LD(&(x[WS(rs, 1)]), ms, &(x[WS(rs, 1)]));
			 TT = VZMULJ(T2, TS);
			 TV = LD(&(x[WS(rs, 11)]), ms, &(x[WS(rs, 1)]));
			 TW = VZMULJ(TU, TV);
			 TX = VSUB(TT, TW);
			 T1O = VADD(TT, TW);
		    }
		    {
			 V Tz, TC, Ty, TB;
			 Ty = LD(&(x[WS(rs, 12)]), ms, &(x[0]));
			 Tz = VZMULJ(Tx, Ty);
			 TB = LD(&(x[WS(rs, 2)]), ms, &(x[0]));
			 TC = VZMULJ(TA, TB);
			 TD = VSUB(Tz, TC);
			 T1G = VADD(Tz, TC);
		    }
		    T1i = VSUB(TX, TR);
		    T1p = VSUB(Th, To);
		    T1q = VSUB(Tw, TD);
		    T1j = VSUB(T1b, T14);
		    Tp = VADD(Th, To);
		    TE = VADD(Tw, TD);
		    TF = VADD(Tp, TE);
		    T26 = VADD(T1D, T1E);
		    T27 = VADD(T1G, T1H);
		    T2b = VADD(T26, T27);
		    T1M = VSUB(T1K, T1L);
		    T1P = VSUB(T1N, T1O);
		    T1V = VADD(T1M, T1P);
		    TY = VADD(TR, TX);
		    T1c = VADD(T14, T1b);
		    T1d = VADD(TY, T1c);
		    T23 = VADD(T1K, T1L);
		    T24 = VADD(T1N, T1O);
		    T2a = VADD(T23, T24);
		    T1F = VSUB(T1D, T1E);
		    T1I = VSUB(T1G, T1H);
		    T1W = VADD(T1F, T1I);
	       }
	       TG = VADD(T7, TF);
	       T1e = VBYI(VADD(TM, T1d));
	       ST(&(x[WS(rs, 5)]), VSUB(TG, T1e), ms, &(x[WS(rs, 1)]));
	       ST(&(x[WS(rs, 15)]), VADD(TG, T1e), ms, &(x[WS(rs, 1)]));
	       {
		    V T2c, T2e, T2f, T29, T2i, T25, T28, T2h, T2g;
		    T2c = VMUL(LDK(KP559016994), VSUB(T2a, T2b));
		    T2e = VADD(T2a, T2b);
		    T2f = VFNMS(LDK(KP250000000), T2e, T2d);
		    T25 = VSUB(T23, T24);
		    T28 = VSUB(T26, T27);
		    T29 = VBYI(VFMA(LDK(KP951056516), T25, VMUL(LDK(KP587785252), T28)));
		    T2i = VBYI(VFNMS(LDK(KP587785252), T25, VMUL(LDK(KP951056516), T28)));
		    ST(&(x[0]), VADD(T2d, T2e), ms, &(x[0]));
		    T2h = VSUB(T2f, T2c);
		    ST(&(x[WS(rs, 8)]), VSUB(T2h, T2i), ms, &(x[0]));
		    ST(&(x[WS(rs, 12)]), VADD(T2i, T2h), ms, &(x[0]));
		    T2g = VADD(T2c, T2f);
		    ST(&(x[WS(rs, 4)]), VADD(T29, T2g), ms, &(x[0]));
		    ST(&(x[WS(rs, 16)]), VSUB(T2g, T29), ms, &(x[0]));
	       }
	       {
		    V T1Z, T1X, T1Y, T1R, T22, T1J, T1Q, T21, T20;
		    T1Z = VMUL(LDK(KP559016994), VSUB(T1V, T1W));
		    T1X = VADD(T1V, T1W);
		    T1Y = VFNMS(LDK(KP250000000), T1X, T1U);
		    T1J = VSUB(T1F, T1I);
		    T1Q = VSUB(T1M, T1P);
		    T1R = VBYI(VFNMS(LDK(KP587785252), T1Q, VMUL(LDK(KP951056516), T1J)));
		    T22 = VBYI(VFMA(LDK(KP951056516), T1Q, VMUL(LDK(KP587785252), T1J)));
		    ST(&(x[WS(rs, 10)]), VADD(T1U, T1X), ms, &(x[0]));
		    T21 = VADD(T1Z, T1Y);
		    ST(&(x[WS(rs, 6)]), VSUB(T21, T22), ms, &(x[0]));
		    ST(&(x[WS(rs, 14)]), VADD(T22, T21), ms, &(x[0]));
		    T20 = VSUB(T1Y, T1Z);
		    ST(&(x[WS(rs, 2)]), VADD(T1R, T20), ms, &(x[0]));
		    ST(&(x[WS(rs, 18)]), VSUB(T20, T1R), ms, &(x[0]));
	       }
	       {
		    V T1k, T1r, T1z, T1w, T1o, T1y, T1h, T1v;
		    T1k = VFMA(LDK(KP951056516), T1i, VMUL(LDK(KP587785252), T1j));
		    T1r = VFMA(LDK(KP951056516), T1p, VMUL(LDK(KP587785252), T1q));
		    T1z = VFNMS(LDK(KP587785252), T1p, VMUL(LDK(KP951056516), T1q));
		    T1w = VFNMS(LDK(KP587785252), T1i, VMUL(LDK(KP951056516), T1j));
		    {
			 V T1m, T1n, T1f, T1g;
			 T1m = VFMS(LDK(KP250000000), T1d, TM);
			 T1n = VMUL(LDK(KP559016994), VSUB(T1c, TY));
			 T1o = VADD(T1m, T1n);
			 T1y = VSUB(T1n, T1m);
			 T1f = VMUL(LDK(KP559016994), VSUB(Tp, TE));
			 T1g = VFNMS(LDK(KP250000000), TF, T7);
			 T1h = VADD(T1f, T1g);
			 T1v = VSUB(T1g, T1f);
		    }
		    {
			 V T1l, T1s, T1B, T1C;
			 T1l = VADD(T1h, T1k);
			 T1s = VBYI(VSUB(T1o, T1r));
			 ST(&(x[WS(rs, 19)]), VSUB(T1l, T1s), ms, &(x[WS(rs, 1)]));
			 ST(&(x[WS(rs, 1)]), VADD(T1l, T1s), ms, &(x[WS(rs, 1)]));
			 T1B = VADD(T1v, T1w);
			 T1C = VBYI(VADD(T1z, T1y));
			 ST(&(x[WS(rs, 13)]), VSUB(T1B, T1C), ms, &(x[WS(rs, 1)]));
			 ST(&(x[WS(rs, 7)]), VADD(T1B, T1C), ms, &(x[WS(rs, 1)]));
		    }
		    {
			 V T1t, T1u, T1x, T1A;
			 T1t = VSUB(T1h, T1k);
			 T1u = VBYI(VADD(T1r, T1o));
			 ST(&(x[WS(rs, 11)]), VSUB(T1t, T1u), ms, &(x[WS(rs, 1)]));
			 ST(&(x[WS(rs, 9)]), VADD(T1t, T1u), ms, &(x[WS(rs, 1)]));
			 T1x = VSUB(T1v, T1w);
			 T1A = VBYI(VSUB(T1y, T1z));
			 ST(&(x[WS(rs, 17)]), VSUB(T1x, T1A), ms, &(x[WS(rs, 1)]));
			 ST(&(x[WS(rs, 3)]), VADD(T1x, T1A), ms, &(x[WS(rs, 1)]));
		    }
	       }
	  }
     }
}

static const tw_instr twinstr[] = {
     VTW(0, 1),
     VTW(0, 3),
     VTW(0, 9),
     VTW(0, 19),
     {TW_NEXT, VL, 0}
};

static const ct_desc desc = { 20, "t3fv_20", twinstr, &GENUS, {126, 80, 12, 0}, 0, 0, 0 };

void X(codelet_t3fv_20) (planner *p) {
     X(kdft_dit_register) (p, t3fv_20, &desc);
}
#endif				/* HAVE_FMA */