diff options
Diffstat (limited to 'src/fftw3/dft/codelets/standard/n1_6.c')
| -rw-r--r-- | src/fftw3/dft/codelets/standard/n1_6.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/src/fftw3/dft/codelets/standard/n1_6.c b/src/fftw3/dft/codelets/standard/n1_6.c new file mode 100644 index 0000000..114679d --- /dev/null +++ b/src/fftw3/dft/codelets/standard/n1_6.c @@ -0,0 +1,119 @@ +/* + * 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 6 -name n1_6 -include n.h */ + +/* + * This function contains 36 FP additions, 8 FP multiplications, + * (or, 32 additions, 4 multiplications, 4 fused multiply/add), + * 23 stack variables, and 24 memory accesses + */ +/* + * Generator Id's : + * $Id: n1_6.c,v 1.1 2008/10/17 06:11:09 scuri Exp $ + * $Id: n1_6.c,v 1.1 2008/10/17 06:11:09 scuri Exp $ + * $Id: n1_6.c,v 1.1 2008/10/17 06:11:09 scuri Exp $ + */ + +#include "n.h" + +static void n1_6(const R *ri, const R *ii, R *ro, R *io, stride is, stride os, int v, int ivs, int ovs) +{ + DK(KP866025403, +0.866025403784438646763723170752936183471402627); + DK(KP500000000, +0.500000000000000000000000000000000000000000000); + int i; + for (i = v; i > 0; i = i - 1, ri = ri + ivs, ii = ii + ivs, ro = ro + ovs, io = io + ovs) { + E T3, Tb, Tq, Tx, T6, Tc, T9, Td, Ta, Te, Ti, Tu, Tl, Tv, Tr; + E Ty; + { + E T1, T2, To, Tp; + T1 = ri[0]; + T2 = ri[WS(is, 3)]; + T3 = T1 - T2; + Tb = T1 + T2; + To = ii[0]; + Tp = ii[WS(is, 3)]; + Tq = To - Tp; + Tx = To + Tp; + } + { + E T4, T5, T7, T8; + T4 = ri[WS(is, 2)]; + T5 = ri[WS(is, 5)]; + T6 = T4 - T5; + Tc = T4 + T5; + T7 = ri[WS(is, 4)]; + T8 = ri[WS(is, 1)]; + T9 = T7 - T8; + Td = T7 + T8; + } + Ta = T6 + T9; + Te = Tc + Td; + { + E Tg, Th, Tj, Tk; + Tg = ii[WS(is, 2)]; + Th = ii[WS(is, 5)]; + Ti = Tg - Th; + Tu = Tg + Th; + Tj = ii[WS(is, 4)]; + Tk = ii[WS(is, 1)]; + Tl = Tj - Tk; + Tv = Tj + Tk; + } + Tr = Ti + Tl; + Ty = Tu + Tv; + ro[WS(os, 3)] = T3 + Ta; + io[WS(os, 3)] = Tq + Tr; + ro[0] = Tb + Te; + io[0] = Tx + Ty; + { + E Tf, Tm, Tn, Ts; + Tf = FNMS(KP500000000, Ta, T3); + Tm = KP866025403 * (Ti - Tl); + ro[WS(os, 5)] = Tf - Tm; + ro[WS(os, 1)] = Tf + Tm; + Tn = KP866025403 * (T9 - T6); + Ts = FNMS(KP500000000, Tr, Tq); + io[WS(os, 1)] = Tn + Ts; + io[WS(os, 5)] = Ts - Tn; + } + { + E Tt, Tw, Tz, TA; + Tt = FNMS(KP500000000, Te, Tb); + Tw = KP866025403 * (Tu - Tv); + ro[WS(os, 2)] = Tt - Tw; + ro[WS(os, 4)] = Tt + Tw; + Tz = FNMS(KP500000000, Ty, Tx); + TA = KP866025403 * (Td - Tc); + io[WS(os, 2)] = Tz - TA; + io[WS(os, 4)] = TA + Tz; + } + } +} + +static const kdft_desc desc = { 6, "n1_6", {32, 4, 4, 0}, &GENUS, 0, 0, 0, 0 }; +void X(codelet_n1_6) (planner *p) { + X(kdft_register) (p, n1_6, &desc); +} |