diff options
Diffstat (limited to 'src/fftw3/rdft/codelets/hc2r/hc2r_8.c')
| -rw-r--r-- | src/fftw3/rdft/codelets/hc2r/hc2r_8.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/src/fftw3/rdft/codelets/hc2r/hc2r_8.c b/src/fftw3/rdft/codelets/hc2r/hc2r_8.c new file mode 100644 index 0000000..dd11bd4 --- /dev/null +++ b/src/fftw3/rdft/codelets/hc2r/hc2r_8.c @@ -0,0 +1,95 @@ +/* + * 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 22:11:11 EDT 2003 */ + +#include "codelet-rdft.h" + +/* Generated by: /homee/stevenj/cvs/fftw3.0.1/genfft/gen_hc2r -compact -variables 4 -sign 1 -n 8 -name hc2r_8 -include hc2r.h */ + +/* + * This function contains 20 FP additions, 6 FP multiplications, + * (or, 20 additions, 6 multiplications, 0 fused multiply/add), + * 21 stack variables, and 16 memory accesses + */ +/* + * Generator Id's : + * $Id: hc2r_8.c,v 1.1 2008/10/17 06:12:08 scuri Exp $ + * $Id: hc2r_8.c,v 1.1 2008/10/17 06:12:08 scuri Exp $ + * $Id: hc2r_8.c,v 1.1 2008/10/17 06:12:08 scuri Exp $ + */ + +#include "hc2r.h" + +static void hc2r_8(const R *ri, const R *ii, R *O, stride ris, stride iis, stride os, int v, int ivs, int ovs) +{ + DK(KP1_414213562, +1.414213562373095048801688724209698078569671875); + DK(KP2_000000000, +2.000000000000000000000000000000000000000000000); + int i; + for (i = v; i > 0; i = i - 1, ri = ri + ivs, ii = ii + ivs, O = O + ovs) { + E T5, Tg, T3, Te, T9, Ti, Td, Tj, T6, Ta; + { + E T4, Tf, T1, T2; + T4 = ri[WS(ris, 2)]; + T5 = KP2_000000000 * T4; + Tf = ii[WS(iis, 2)]; + Tg = KP2_000000000 * Tf; + T1 = ri[0]; + T2 = ri[WS(ris, 4)]; + T3 = T1 + T2; + Te = T1 - T2; + { + E T7, T8, Tb, Tc; + T7 = ri[WS(ris, 1)]; + T8 = ri[WS(ris, 3)]; + T9 = KP2_000000000 * (T7 + T8); + Ti = T7 - T8; + Tb = ii[WS(iis, 1)]; + Tc = ii[WS(iis, 3)]; + Td = KP2_000000000 * (Tb - Tc); + Tj = Tb + Tc; + } + } + T6 = T3 + T5; + O[WS(os, 4)] = T6 - T9; + O[0] = T6 + T9; + Ta = T3 - T5; + O[WS(os, 2)] = Ta - Td; + O[WS(os, 6)] = Ta + Td; + { + E Th, Tk, Tl, Tm; + Th = Te - Tg; + Tk = KP1_414213562 * (Ti - Tj); + O[WS(os, 5)] = Th - Tk; + O[WS(os, 1)] = Th + Tk; + Tl = Te + Tg; + Tm = KP1_414213562 * (Ti + Tj); + O[WS(os, 3)] = Tl - Tm; + O[WS(os, 7)] = Tl + Tm; + } + } +} + +static const khc2r_desc desc = { 8, "hc2r_8", {20, 6, 0, 0}, &GENUS, 0, 0, 0, 0, 0 }; + +void X(codelet_hc2r_8) (planner *p) { + X(khc2r_register) (p, hc2r_8, &desc); +} |