annotate fft/fftw/fftw-3.3.4/dft/scalar/codelets/n1_10.c @ 40:223f770b5341 kissfft-double tip

Try a double-precision kissfft

/*
 * Copyright (c) 2003, 2007-14 Matteo Frigo
 * Copyright (c) 2003, 2007-14 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */

/* This file was automatically generated --- DO NOT EDIT */
/* Generated on Tue Mar  4 13:45:48 EST 2014 */

#include "codelet-dft.h"

#ifdef HAVE_FMA

/* Generated by: ../../../genfft/gen_notw.native -fma -reorder-insns -schedule-for-pipeline -compact -variables 4 -pipeline-latency 4 -n 10 -name n1_10 -include n.h */

/*
 * This function contains 84 FP additions, 36 FP multiplications,
 * (or, 48 additions, 0 multiplications, 36 fused multiply/add),
 * 59 stack variables, 4 constants, and 40 memory accesses
 */
#include "n.h"

static void n1_10(const R *ri, const R *ii, R *ro, R *io, stride is, stride os, INT v, INT ivs, INT ovs)
{
     DK(KP951056516, +0.951056516295153572116439333379382143405698634);
     DK(KP559016994, +0.559016994374947424102293417182819058860154590);
     DK(KP250000000, +0.250000000000000000000000000000000000000000000);
     DK(KP618033988, +0.618033988749894848204586834365638117720309180);
     {
	  INT i;
	  for (i = v; i > 0; i = i - 1, ri = ri + ivs, ii = ii + ivs, ro = ro + ovs, io = io + ovs, MAKE_VOLATILE_STRIDE(40, is), MAKE_VOLATILE_STRIDE(40, os)) {
	       E T1g, T1a, T18, T1m, T1k, T1f, T19, T11, T1h, T1l;
	       {
		    E Tj, T3, T1b, TN, T1j, TU, T1i, TV, Tq, T10, Ti, Ts, Tw, T15, Tx;
		    E T13, TG, Ty, TB, TC;
		    {
			 E T1, T2, TL, TM;
			 T1 = ri[0];
			 T2 = ri[WS(is, 5)];
			 TL = ii[0];
			 TM = ii[WS(is, 5)];
			 {
			      E T7, Tk, T6, To, Tg, T8, Tb, Tc;
			      {
				   E T4, T5, Te, Tf;
				   T4 = ri[WS(is, 2)];
				   Tj = T1 + T2;
				   T3 = T1 - T2;
				   T1b = TL + TM;
				   TN = TL - TM;
				   T5 = ri[WS(is, 7)];
				   Te = ri[WS(is, 6)];
				   Tf = ri[WS(is, 1)];
				   T7 = ri[WS(is, 8)];
				   Tk = T4 + T5;
				   T6 = T4 - T5;
				   To = Te + Tf;
				   Tg = Te - Tf;
				   T8 = ri[WS(is, 3)];
				   Tb = ri[WS(is, 4)];
				   Tc = ri[WS(is, 9)];
			      }
			      {
				   E TE, TF, Tu, Tv;
				   {
					E Ta, Th, Tl, T9;
					Tu = ii[WS(is, 2)];
					Tl = T7 + T8;
					T9 = T7 - T8;
					{
					     E Tn, Td, Tm, Tp;
					     Tn = Tb + Tc;
					     Td = Tb - Tc;
					     Tm = Tk + Tl;
					     T1j = Tk - Tl;
					     Ta = T6 + T9;
					     TU = T6 - T9;
					     Tp = Tn + To;
					     T1i = Tn - To;
					     Th = Td + Tg;
					     TV = Td - Tg;
					     Tq = Tm + Tp;
					     T10 = Tm - Tp;
					     Tv = ii[WS(is, 7)];
					}
					Ti = Ta + Th;
					Ts = Ta - Th;
				   }
				   TE = ii[WS(is, 6)];
				   TF = ii[WS(is, 1)];
				   Tw = Tu - Tv;
				   T15 = Tu + Tv;
				   Tx = ii[WS(is, 8)];
				   T13 = TE + TF;
				   TG = TE - TF;
				   Ty = ii[WS(is, 3)];
				   TB = ii[WS(is, 4)];
				   TC = ii[WS(is, 9)];
			      }
			 }
		    }
		    {
			 E T17, TA, T14, TH, T1e, TQ, TS;
			 {
			      E TO, TP, T16, Tz;
			      ro[WS(os, 5)] = T3 + Ti;
			      T16 = Tx + Ty;
			      Tz = Tx - Ty;
			      {
				   E T12, TD, T1c, T1d;
				   T12 = TB + TC;
				   TD = TB - TC;
				   T1c = T15 + T16;
				   T17 = T15 - T16;
				   TO = Tw + Tz;
				   TA = Tw - Tz;
				   T1d = T12 + T13;
				   T14 = T12 - T13;
				   TP = TD + TG;
				   TH = TD - TG;
				   T1e = T1c + T1d;
				   T1g = T1c - T1d;
			      }
			      ro[0] = Tj + Tq;
			      TQ = TO + TP;
			      TS = TO - TP;
			 }
			 {
			      E TK, TI, TY, TW, TR, TJ, Tt, Tr, TZ, TX, TT;
			      TK = FNMS(KP618033988, TA, TH);
			      TI = FMA(KP618033988, TH, TA);
			      io[0] = T1b + T1e;
			      io[WS(os, 5)] = TN + TQ;
			      Tr = FNMS(KP250000000, Ti, T3);
			      TY = FNMS(KP618033988, TU, TV);
			      TW = FMA(KP618033988, TV, TU);
			      TR = FNMS(KP250000000, TQ, TN);
			      TJ = FNMS(KP559016994, Ts, Tr);
			      Tt = FMA(KP559016994, Ts, Tr);
			      T1a = FMA(KP618033988, T14, T17);
			      T18 = FNMS(KP618033988, T17, T14);
			      ro[WS(os, 7)] = FNMS(KP951056516, TK, TJ);
			      ro[WS(os, 3)] = FMA(KP951056516, TK, TJ);
			      ro[WS(os, 1)] = FMA(KP951056516, TI, Tt);
			      ro[WS(os, 9)] = FNMS(KP951056516, TI, Tt);
			      TX = FNMS(KP559016994, TS, TR);
			      TT = FMA(KP559016994, TS, TR);
			      TZ = FNMS(KP250000000, Tq, Tj);
			      io[WS(os, 3)] = FNMS(KP951056516, TY, TX);
			      io[WS(os, 7)] = FMA(KP951056516, TY, TX);
			      io[WS(os, 9)] = FMA(KP951056516, TW, TT);
			      io[WS(os, 1)] = FNMS(KP951056516, TW, TT);
			      T1m = FMA(KP618033988, T1i, T1j);
			      T1k = FNMS(KP618033988, T1j, T1i);
			      T1f = FNMS(KP250000000, T1e, T1b);
			      T19 = FMA(KP559016994, T10, TZ);
			      T11 = FNMS(KP559016994, T10, TZ);
			 }
		    }
	       }
	       ro[WS(os, 4)] = FNMS(KP951056516, T1a, T19);
	       ro[WS(os, 6)] = FMA(KP951056516, T1a, T19);
	       ro[WS(os, 8)] = FMA(KP951056516, T18, T11);
	       ro[WS(os, 2)] = FNMS(KP951056516, T18, T11);
	       T1h = FNMS(KP559016994, T1g, T1f);
	       T1l = FMA(KP559016994, T1g, T1f);
	       io[WS(os, 4)] = FMA(KP951056516, T1m, T1l);
	       io[WS(os, 6)] = FNMS(KP951056516, T1m, T1l);
	       io[WS(os, 8)] = FNMS(KP951056516, T1k, T1h);
	       io[WS(os, 2)] = FMA(KP951056516, T1k, T1h);
	  }
     }
}

static const kdft_desc desc = { 10, "n1_10", {48, 0, 36, 0}, &GENUS, 0, 0, 0, 0 };

void X(codelet_n1_10) (planner *p) {
     X(kdft_register) (p, n1_10, &desc);
}

#else				/* HAVE_FMA */

/* Generated by: ../../../genfft/gen_notw.native -compact -variables 4 -pipeline-latency 4 -n 10 -name n1_10 -include n.h */

/*
 * This function contains 84 FP additions, 24 FP multiplications,
 * (or, 72 additions, 12 multiplications, 12 fused multiply/add),
 * 41 stack variables, 4 constants, and 40 memory accesses
 */
#include "n.h"

static void n1_10(const R *ri, const R *ii, R *ro, R *io, stride is, stride os, INT v, INT ivs, INT ovs)
{
     DK(KP250000000, +0.250000000000000000000000000000000000000000000);
     DK(KP559016994, +0.559016994374947424102293417182819058860154590);
     DK(KP587785252, +0.587785252292473129168705954639072768597652438);
     DK(KP951056516, +0.951056516295153572116439333379382143405698634);
     {
	  INT i;
	  for (i = v; i > 0; i = i - 1, ri = ri + ivs, ii = ii + ivs, ro = ro + ovs, io = io + ovs, MAKE_VOLATILE_STRIDE(40, is), MAKE_VOLATILE_STRIDE(40, os)) {
	       E T3, Tj, TQ, T1e, TU, TV, T1c, T1b, Tm, Tp, Tq, Ta, Th, Ti, TA;
	       E TH, T17, T14, T1f, T1g, T1h, TL, TM, TR;
	       {
		    E T1, T2, TO, TP;
		    T1 = ri[0];
		    T2 = ri[WS(is, 5)];
		    T3 = T1 - T2;
		    Tj = T1 + T2;
		    TO = ii[0];
		    TP = ii[WS(is, 5)];
		    TQ = TO - TP;
		    T1e = TO + TP;
	       }
	       {
		    E T6, Tk, Tg, To, T9, Tl, Td, Tn;
		    {
			 E T4, T5, Te, Tf;
			 T4 = ri[WS(is, 2)];
			 T5 = ri[WS(is, 7)];
			 T6 = T4 - T5;
			 Tk = T4 + T5;
			 Te = ri[WS(is, 6)];
			 Tf = ri[WS(is, 1)];
			 Tg = Te - Tf;
			 To = Te + Tf;
		    }
		    {
			 E T7, T8, Tb, Tc;
			 T7 = ri[WS(is, 8)];
			 T8 = ri[WS(is, 3)];
			 T9 = T7 - T8;
			 Tl = T7 + T8;
			 Tb = ri[WS(is, 4)];
			 Tc = ri[WS(is, 9)];
			 Td = Tb - Tc;
			 Tn = Tb + Tc;
		    }
		    TU = T6 - T9;
		    TV = Td - Tg;
		    T1c = Tk - Tl;
		    T1b = Tn - To;
		    Tm = Tk + Tl;
		    Tp = Tn + To;
		    Tq = Tm + Tp;
		    Ta = T6 + T9;
		    Th = Td + Tg;
		    Ti = Ta + Th;
	       }
	       {
		    E Tw, T15, TG, T13, Tz, T16, TD, T12;
		    {
			 E Tu, Tv, TE, TF;
			 Tu = ii[WS(is, 2)];
			 Tv = ii[WS(is, 7)];
			 Tw = Tu - Tv;
			 T15 = Tu + Tv;
			 TE = ii[WS(is, 6)];
			 TF = ii[WS(is, 1)];
			 TG = TE - TF;
			 T13 = TE + TF;
		    }
		    {
			 E Tx, Ty, TB, TC;
			 Tx = ii[WS(is, 8)];
			 Ty = ii[WS(is, 3)];
			 Tz = Tx - Ty;
			 T16 = Tx + Ty;
			 TB = ii[WS(is, 4)];
			 TC = ii[WS(is, 9)];
			 TD = TB - TC;
			 T12 = TB + TC;
		    }
		    TA = Tw - Tz;
		    TH = TD - TG;
		    T17 = T15 - T16;
		    T14 = T12 - T13;
		    T1f = T15 + T16;
		    T1g = T12 + T13;
		    T1h = T1f + T1g;
		    TL = Tw + Tz;
		    TM = TD + TG;
		    TR = TL + TM;
	       }
	       ro[WS(os, 5)] = T3 + Ti;
	       io[WS(os, 5)] = TQ + TR;
	       ro[0] = Tj + Tq;
	       io[0] = T1e + T1h;
	       {
		    E TI, TK, Tt, TJ, Tr, Ts;
		    TI = FMA(KP951056516, TA, KP587785252 * TH);
		    TK = FNMS(KP587785252, TA, KP951056516 * TH);
		    Tr = KP559016994 * (Ta - Th);
		    Ts = FNMS(KP250000000, Ti, T3);
		    Tt = Tr + Ts;
		    TJ = Ts - Tr;
		    ro[WS(os, 9)] = Tt - TI;
		    ro[WS(os, 3)] = TJ + TK;
		    ro[WS(os, 1)] = Tt + TI;
		    ro[WS(os, 7)] = TJ - TK;
	       }
	       {
		    E TW, TY, TT, TX, TN, TS;
		    TW = FMA(KP951056516, TU, KP587785252 * TV);
		    TY = FNMS(KP587785252, TU, KP951056516 * TV);
		    TN = KP559016994 * (TL - TM);
		    TS = FNMS(KP250000000, TR, TQ);
		    TT = TN + TS;
		    TX = TS - TN;
		    io[WS(os, 1)] = TT - TW;
		    io[WS(os, 7)] = TY + TX;
		    io[WS(os, 9)] = TW + TT;
		    io[WS(os, 3)] = TX - TY;
	       }
	       {
		    E T18, T1a, T11, T19, TZ, T10;
		    T18 = FNMS(KP587785252, T17, KP951056516 * T14);
		    T1a = FMA(KP951056516, T17, KP587785252 * T14);
		    TZ = FNMS(KP250000000, Tq, Tj);
		    T10 = KP559016994 * (Tm - Tp);
		    T11 = TZ - T10;
		    T19 = T10 + TZ;
		    ro[WS(os, 2)] = T11 - T18;
		    ro[WS(os, 6)] = T19 + T1a;
		    ro[WS(os, 8)] = T11 + T18;
		    ro[WS(os, 4)] = T19 - T1a;
	       }
	       {
		    E T1d, T1l, T1k, T1m, T1i, T1j;
		    T1d = FNMS(KP587785252, T1c, KP951056516 * T1b);
		    T1l = FMA(KP951056516, T1c, KP587785252 * T1b);
		    T1i = FNMS(KP250000000, T1h, T1e);
		    T1j = KP559016994 * (T1f - T1g);
		    T1k = T1i - T1j;
		    T1m = T1j + T1i;
		    io[WS(os, 2)] = T1d + T1k;
		    io[WS(os, 6)] = T1m - T1l;
		    io[WS(os, 8)] = T1k - T1d;
		    io[WS(os, 4)] = T1l + T1m;
	       }
	  }
     }
}

static const kdft_desc desc = { 10, "n1_10", {72, 12, 12, 0}, &GENUS, 0, 0, 0, 0 };

void X(codelet_n1_10) (planner *p) {
     X(kdft_register) (p, n1_10, &desc);
}

#endif				/* HAVE_FMA */