diff options
Diffstat (limited to 'src/fftw3/dft/codelets/standard/n1_5.c')
| -rw-r--r-- | src/fftw3/dft/codelets/standard/n1_5.c | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/src/fftw3/dft/codelets/standard/n1_5.c b/src/fftw3/dft/codelets/standard/n1_5.c new file mode 100644 index 0000000..8ac5abc --- /dev/null +++ b/src/fftw3/dft/codelets/standard/n1_5.c @@ -0,0 +1,111 @@ +/* + * 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 21:29:32 EDT 2003 */ + +#include "codelet-dft.h" + +/* Generated by: /homee/stevenj/cvs/fftw3.0.1/genfft/gen_notw -compact -variables 4 -n 5 -name n1_5 -include n.h */ + +/* + * This function contains 32 FP additions, 12 FP multiplications, + * (or, 26 additions, 6 multiplications, 6 fused multiply/add), + * 21 stack variables, and 20 memory accesses + */ +/* + * Generator Id's : + * $Id: n1_5.c,v 1.1 2008/10/17 06:11:09 scuri Exp $ + * $Id: n1_5.c,v 1.1 2008/10/17 06:11:09 scuri Exp $ + * $Id: n1_5.c,v 1.1 2008/10/17 06:11:09 scuri Exp $ + */ + +#include "n.h" + +static void n1_5(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(KP587785252, +0.587785252292473129168705954639072768597652438); + DK(KP951056516, +0.951056516295153572116439333379382143405698634); + DK(KP559016994, +0.559016994374947424102293417182819058860154590); + int i; + for (i = v; i > 0; i = i - 1, ri = ri + ivs, ii = ii + ivs, ro = ro + ovs, io = io + ovs) { + E T1, To, T8, Tt, T9, Ts, Te, Tp, Th, Tn; + T1 = ri[0]; + To = ii[0]; + { + E T2, T3, T4, T5, T6, T7; + T2 = ri[WS(is, 1)]; + T3 = ri[WS(is, 4)]; + T4 = T2 + T3; + T5 = ri[WS(is, 2)]; + T6 = ri[WS(is, 3)]; + T7 = T5 + T6; + T8 = T4 + T7; + Tt = T5 - T6; + T9 = KP559016994 * (T4 - T7); + Ts = T2 - T3; + } + { + E Tc, Td, Tl, Tf, Tg, Tm; + Tc = ii[WS(is, 1)]; + Td = ii[WS(is, 4)]; + Tl = Tc + Td; + Tf = ii[WS(is, 2)]; + Tg = ii[WS(is, 3)]; + Tm = Tf + Tg; + Te = Tc - Td; + Tp = Tl + Tm; + Th = Tf - Tg; + Tn = KP559016994 * (Tl - Tm); + } + ro[0] = T1 + T8; + io[0] = To + Tp; + { + E Ti, Tk, Tb, Tj, Ta; + Ti = FMA(KP951056516, Te, KP587785252 * Th); + Tk = FNMS(KP587785252, Te, KP951056516 * Th); + Ta = FNMS(KP250000000, T8, T1); + Tb = T9 + Ta; + Tj = Ta - T9; + ro[WS(os, 4)] = Tb - Ti; + ro[WS(os, 3)] = Tj + Tk; + ro[WS(os, 1)] = Tb + Ti; + ro[WS(os, 2)] = Tj - Tk; + } + { + E Tu, Tv, Tr, Tw, Tq; + Tu = FMA(KP951056516, Ts, KP587785252 * Tt); + Tv = FNMS(KP587785252, Ts, KP951056516 * Tt); + Tq = FNMS(KP250000000, Tp, To); + Tr = Tn + Tq; + Tw = Tq - Tn; + io[WS(os, 1)] = Tr - Tu; + io[WS(os, 3)] = Tw - Tv; + io[WS(os, 4)] = Tu + Tr; + io[WS(os, 2)] = Tv + Tw; + } + } +} + +static const kdft_desc desc = { 5, "n1_5", {26, 6, 6, 0}, &GENUS, 0, 0, 0, 0 }; +void X(codelet_n1_5) (planner *p) { + X(kdft_register) (p, n1_5, &desc); +} |