diff options
Diffstat (limited to 'src/fftw3/rdft/codelets/r2hc/r2hc_12.c')
| -rw-r--r-- | src/fftw3/rdft/codelets/r2hc/r2hc_12.c | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/src/fftw3/rdft/codelets/r2hc/r2hc_12.c b/src/fftw3/rdft/codelets/r2hc/r2hc_12.c new file mode 100644 index 0000000..81a5273 --- /dev/null +++ b/src/fftw3/rdft/codelets/r2hc/r2hc_12.c @@ -0,0 +1,124 @@ +/* + * 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 21:56:41 EDT 2003 */ + +#include "codelet-rdft.h" + +/* Generated by: /homee/stevenj/cvs/fftw3.0.1/genfft/gen_r2hc -compact -variables 4 -n 12 -name r2hc_12 -include r2hc.h */ + +/* + * This function contains 38 FP additions, 8 FP multiplications, + * (or, 34 additions, 4 multiplications, 4 fused multiply/add), + * 21 stack variables, and 24 memory accesses + */ +/* + * Generator Id's : + * $Id: r2hc_12.c,v 1.1 2008/10/17 06:12:34 scuri Exp $ + * $Id: r2hc_12.c,v 1.1 2008/10/17 06:12:34 scuri Exp $ + * $Id: r2hc_12.c,v 1.1 2008/10/17 06:12:34 scuri Exp $ + */ + +#include "r2hc.h" + +static void r2hc_12(const R *I, R *ro, R *io, stride is, stride ros, stride ios, int v, int ivs, int ovs) +{ + DK(KP866025403, +0.866025403784438646763723170752936183471402627); + DK(KP500000000, +0.500000000000000000000000000000000000000000000); + int i; + for (i = v; i > 0; i = i - 1, I = I + ivs, ro = ro + ovs, io = io + ovs) { + E T5, Tp, Tb, Tn, Ty, Tt, Ta, Tq, Tc, Ti, Tz, Tu, Td, To; + { + E T1, T2, T3, T4; + T1 = I[0]; + T2 = I[WS(is, 4)]; + T3 = I[WS(is, 8)]; + T4 = T2 + T3; + T5 = T1 + T4; + Tp = FNMS(KP500000000, T4, T1); + Tb = T3 - T2; + } + { + E Tj, Tk, Tl, Tm; + Tj = I[WS(is, 3)]; + Tk = I[WS(is, 7)]; + Tl = I[WS(is, 11)]; + Tm = Tk + Tl; + Tn = FNMS(KP500000000, Tm, Tj); + Ty = Tl - Tk; + Tt = Tj + Tm; + } + { + E T6, T7, T8, T9; + T6 = I[WS(is, 6)]; + T7 = I[WS(is, 10)]; + T8 = I[WS(is, 2)]; + T9 = T7 + T8; + Ta = T6 + T9; + Tq = FNMS(KP500000000, T9, T6); + Tc = T8 - T7; + } + { + E Te, Tf, Tg, Th; + Te = I[WS(is, 9)]; + Tf = I[WS(is, 1)]; + Tg = I[WS(is, 5)]; + Th = Tf + Tg; + Ti = FNMS(KP500000000, Th, Te); + Tz = Tg - Tf; + Tu = Te + Th; + } + ro[WS(ros, 3)] = T5 - Ta; + io[WS(ios, 3)] = Tt - Tu; + Td = KP866025403 * (Tb - Tc); + To = Ti - Tn; + io[WS(ios, 1)] = Td + To; + io[WS(ios, 5)] = To - Td; + { + E Tx, TA, Tv, Tw; + Tx = Tp - Tq; + TA = KP866025403 * (Ty - Tz); + ro[WS(ros, 5)] = Tx - TA; + ro[WS(ros, 1)] = Tx + TA; + Tv = T5 + Ta; + Tw = Tt + Tu; + ro[WS(ros, 6)] = Tv - Tw; + ro[0] = Tv + Tw; + } + { + E Tr, Ts, TB, TC; + Tr = Tp + Tq; + Ts = Tn + Ti; + ro[WS(ros, 2)] = Tr - Ts; + ro[WS(ros, 4)] = Tr + Ts; + TB = Ty + Tz; + TC = Tb + Tc; + io[WS(ios, 2)] = KP866025403 * (TB - TC); + io[WS(ios, 4)] = KP866025403 * (TC + TB); + } + } +} + +static const kr2hc_desc desc = { 12, "r2hc_12", {34, 4, 4, 0}, &GENUS, 0, 0, 0, 0, 0 }; + +void X(codelet_r2hc_12) (planner *p) { + X(kr2hc_register) (p, r2hc_12, &desc); +} |