/* * 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 21:29:52 EDT 2003 */ #include "codelet-dft.h" /* Generated by: /homee/stevenj/cvs/fftw3.0.1/genfft/gen_twiddle -compact -variables 4 -n 5 -name t1_5 -include t.h */ /* * This function contains 40 FP additions, 28 FP multiplications, * (or, 26 additions, 14 multiplications, 14 fused multiply/add), * 29 stack variables, and 20 memory accesses */ /* * Generator Id's : * $Id: t1_5.c,v 1.1 2008/10/17 06:11:09 scuri Exp $ * $Id: t1_5.c,v 1.1 2008/10/17 06:11:09 scuri Exp $ * $Id: t1_5.c,v 1.1 2008/10/17 06:11:09 scuri Exp $ */ #include "t.h" static const R *t1_5(R *ri, R *ii, const R *W, stride ios, int m, int dist) { DK(KP250000000, +0.250000000000000000000000000000000000000000000); DK(KP559016994, +0.559016994374947424102293417182819058860154590); DK(KP587785252, +0.587785252292473129168705954639072768597652438); DK(KP951056516, +0.951056516295153572116439333379382143405698634); int i; for (i = m; i > 0; i = i - 1, ri = ri + dist, ii = ii + dist, W = W + 8) { E T1, TE, Tu, Tx, TJ, TI, TB, TC, TD, Tc, Tn, To; T1 = ri[0]; TE = ii[0]; { E T6, Ts, Tm, Tw, Tb, Tt, Th, Tv; { E T3, T5, T2, T4; T3 = ri[WS(ios, 1)]; T5 = ii[WS(ios, 1)]; T2 = W[0]; T4 = W[1]; T6 = FMA(T2, T3, T4 * T5); Ts = FNMS(T4, T3, T2 * T5); } { E Tj, Tl, Ti, Tk; Tj = ri[WS(ios, 3)]; Tl = ii[WS(ios, 3)]; Ti = W[4]; Tk = W[5]; Tm = FMA(Ti, Tj, Tk * Tl); Tw = FNMS(Tk, Tj, Ti * Tl); } { E T8, Ta, T7, T9; T8 = ri[WS(ios, 4)]; Ta = ii[WS(ios, 4)]; T7 = W[6]; T9 = W[7]; Tb = FMA(T7, T8, T9 * Ta); Tt = FNMS(T9, T8, T7 * Ta); } { E Te, Tg, Td, Tf; Te = ri[WS(ios, 2)]; Tg = ii[WS(ios, 2)]; Td = W[2]; Tf = W[3]; Th = FMA(Td, Te, Tf * Tg); Tv = FNMS(Tf, Te, Td * Tg); } Tu = Ts - Tt; Tx = Tv - Tw; TJ = Th - Tm; TI = T6 - Tb; TB = Ts + Tt; TC = Tv + Tw; TD = TB + TC; Tc = T6 + Tb; Tn = Th + Tm; To = Tc + Tn; } ri[0] = T1 + To; ii[0] = TD + TE; { E Ty, TA, Tr, Tz, Tp, Tq; Ty = FMA(KP951056516, Tu, KP587785252 * Tx); TA = FNMS(KP587785252, Tu, KP951056516 * Tx); Tp = KP559016994 * (Tc - Tn); Tq = FNMS(KP250000000, To, T1); Tr = Tp + Tq; Tz = Tq - Tp; ri[WS(ios, 4)] = Tr - Ty; ri[WS(ios, 3)] = Tz + TA; ri[WS(ios, 1)] = Tr + Ty; ri[WS(ios, 2)] = Tz - TA; } { E TK, TL, TH, TM, TF, TG; TK = FMA(KP951056516, TI, KP587785252 * TJ); TL = FNMS(KP587785252, TI, KP951056516 * TJ); TF = KP559016994 * (TB - TC); TG = FNMS(KP250000000, TD, TE); TH = TF + TG; TM = TG - TF; ii[WS(ios, 1)] = TH - TK; ii[WS(ios, 3)] = TM - TL; ii[WS(ios, 4)] = TK + TH; ii[WS(ios, 2)] = TL + TM; } } return W; } static const tw_instr twinstr[] = { {TW_FULL, 0, 5}, {TW_NEXT, 1, 0} }; static const ct_desc desc = { 5, "t1_5", twinstr, {26, 14, 14, 0}, &GENUS, 0, 0, 0 }; void X(codelet_t1_5) (planner *p) { X(kdft_dit_register) (p, t1_5, &desc); }