diff options
Diffstat (limited to 'src/fftw3/dft/codelets/standard/n1_4.c')
| -rw-r--r-- | src/fftw3/dft/codelets/standard/n1_4.c | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/src/fftw3/dft/codelets/standard/n1_4.c b/src/fftw3/dft/codelets/standard/n1_4.c new file mode 100644 index 0000000..402046a --- /dev/null +++ b/src/fftw3/dft/codelets/standard/n1_4.c @@ -0,0 +1,83 @@ +/* + * 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 4 -name n1_4 -include n.h */ + +/* + * This function contains 16 FP additions, 0 FP multiplications, + * (or, 16 additions, 0 multiplications, 0 fused multiply/add), + * 13 stack variables, and 16 memory accesses + */ +/* + * Generator Id's : + * $Id: n1_4.c,v 1.1 2008/10/17 06:11:09 scuri Exp $ + * $Id: n1_4.c,v 1.1 2008/10/17 06:11:09 scuri Exp $ + * $Id: n1_4.c,v 1.1 2008/10/17 06:11:09 scuri Exp $ + */ + +#include "n.h" + +static void n1_4(const R *ri, const R *ii, R *ro, R *io, stride is, stride os, int v, int ivs, int ovs) +{ + 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, T9, Tf, T6, Ta, Te, Tg; + { + E T1, T2, T7, T8; + T1 = ri[0]; + T2 = ri[WS(is, 2)]; + T3 = T1 + T2; + Tb = T1 - T2; + T7 = ii[0]; + T8 = ii[WS(is, 2)]; + T9 = T7 - T8; + Tf = T7 + T8; + } + { + E T4, T5, Tc, Td; + T4 = ri[WS(is, 1)]; + T5 = ri[WS(is, 3)]; + T6 = T4 + T5; + Ta = T4 - T5; + Tc = ii[WS(is, 1)]; + Td = ii[WS(is, 3)]; + Te = Tc - Td; + Tg = Tc + Td; + } + ro[WS(os, 2)] = T3 - T6; + io[WS(os, 2)] = Tf - Tg; + ro[0] = T3 + T6; + io[0] = Tf + Tg; + io[WS(os, 1)] = T9 - Ta; + ro[WS(os, 1)] = Tb + Te; + io[WS(os, 3)] = Ta + T9; + ro[WS(os, 3)] = Tb - Te; + } +} + +static const kdft_desc desc = { 4, "n1_4", {16, 0, 0, 0}, &GENUS, 0, 0, 0, 0 }; +void X(codelet_n1_4) (planner *p) { + X(kdft_register) (p, n1_4, &desc); +} |