diff options
Diffstat (limited to 'src/fftw3/rdft/codelets/r2hc/r2hc_16.c')
| -rw-r--r-- | src/fftw3/rdft/codelets/r2hc/r2hc_16.c | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/src/fftw3/rdft/codelets/r2hc/r2hc_16.c b/src/fftw3/rdft/codelets/r2hc/r2hc_16.c new file mode 100644 index 0000000..e28d6d5 --- /dev/null +++ b/src/fftw3/rdft/codelets/r2hc/r2hc_16.c @@ -0,0 +1,159 @@ +/* + * 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 21:56:43 EDT 2003 */ + +#include "codelet-rdft.h" + +/* Generated by: /homee/stevenj/cvs/fftw3.0.1/genfft/gen_r2hc -compact -variables 4 -n 16 -name r2hc_16 -include r2hc.h */ + +/* + * This function contains 58 FP additions, 12 FP multiplications, + * (or, 54 additions, 8 multiplications, 4 fused multiply/add), + * 34 stack variables, and 32 memory accesses + */ +/* + * Generator Id's : + * $Id: r2hc_16.c,v 1.1 2008/10/17 06:12:34 scuri Exp $ + * $Id: r2hc_16.c,v 1.1 2008/10/17 06:12:34 scuri Exp $ + * $Id: r2hc_16.c,v 1.1 2008/10/17 06:12:34 scuri Exp $ + */ + +#include "r2hc.h" + +static void r2hc_16(const R *I, R *ro, R *io, stride is, stride ros, stride ios, int v, int ivs, int ovs) +{ + DK(KP923879532, +0.923879532511286756128183189396788286822416626); + DK(KP382683432, +0.382683432365089771728459984030398866761344562); + DK(KP707106781, +0.707106781186547524400844362104849039284835938); + int i; + for (i = v; i > 0; i = i - 1, I = I + ivs, ro = ro + ovs, io = io + ovs) { + E T3, T6, T7, Tz, Ti, Ta, Td, Te, TA, Th, Tq, TV, TF, TP, Tx; + E TU, TE, TM, Tg, Tf, TJ, TQ; + { + E T1, T2, T4, T5; + T1 = I[0]; + T2 = I[WS(is, 8)]; + T3 = T1 + T2; + T4 = I[WS(is, 4)]; + T5 = I[WS(is, 12)]; + T6 = T4 + T5; + T7 = T3 + T6; + Tz = T1 - T2; + Ti = T4 - T5; + } + { + E T8, T9, Tb, Tc; + T8 = I[WS(is, 2)]; + T9 = I[WS(is, 10)]; + Ta = T8 + T9; + Tg = T8 - T9; + Tb = I[WS(is, 14)]; + Tc = I[WS(is, 6)]; + Td = Tb + Tc; + Tf = Tb - Tc; + } + Te = Ta + Td; + TA = KP707106781 * (Tg + Tf); + Th = KP707106781 * (Tf - Tg); + { + E Tm, TN, Tp, TO; + { + E Tk, Tl, Tn, To; + Tk = I[WS(is, 15)]; + Tl = I[WS(is, 7)]; + Tm = Tk - Tl; + TN = Tk + Tl; + Tn = I[WS(is, 3)]; + To = I[WS(is, 11)]; + Tp = Tn - To; + TO = Tn + To; + } + Tq = FNMS(KP923879532, Tp, KP382683432 * Tm); + TV = TN + TO; + TF = FMA(KP923879532, Tm, KP382683432 * Tp); + TP = TN - TO; + } + { + E Tt, TK, Tw, TL; + { + E Tr, Ts, Tu, Tv; + Tr = I[WS(is, 1)]; + Ts = I[WS(is, 9)]; + Tt = Tr - Ts; + TK = Tr + Ts; + Tu = I[WS(is, 5)]; + Tv = I[WS(is, 13)]; + Tw = Tu - Tv; + TL = Tu + Tv; + } + Tx = FMA(KP382683432, Tt, KP923879532 * Tw); + TU = TK + TL; + TE = FNMS(KP382683432, Tw, KP923879532 * Tt); + TM = TK - TL; + } + ro[WS(ros, 4)] = T7 - Te; + io[WS(ios, 4)] = TV - TU; + { + E Tj, Ty, TD, TG; + Tj = Th - Ti; + Ty = Tq - Tx; + io[WS(ios, 1)] = Tj + Ty; + io[WS(ios, 7)] = Ty - Tj; + TD = Tz + TA; + TG = TE + TF; + ro[WS(ros, 7)] = TD - TG; + ro[WS(ros, 1)] = TD + TG; + } + { + E TB, TC, TH, TI; + TB = Tz - TA; + TC = Tx + Tq; + ro[WS(ros, 5)] = TB - TC; + ro[WS(ros, 3)] = TB + TC; + TH = Ti + Th; + TI = TF - TE; + io[WS(ios, 3)] = TH + TI; + io[WS(ios, 5)] = TI - TH; + } + TJ = T3 - T6; + TQ = KP707106781 * (TM + TP); + ro[WS(ros, 6)] = TJ - TQ; + ro[WS(ros, 2)] = TJ + TQ; + { + E TR, TS, TT, TW; + TR = Td - Ta; + TS = KP707106781 * (TP - TM); + io[WS(ios, 2)] = TR + TS; + io[WS(ios, 6)] = TS - TR; + TT = T7 + Te; + TW = TU + TV; + ro[WS(ros, 8)] = TT - TW; + ro[0] = TT + TW; + } + } +} + +static const kr2hc_desc desc = { 16, "r2hc_16", {54, 8, 4, 0}, &GENUS, 0, 0, 0, 0, 0 }; + +void X(codelet_r2hc_16) (planner *p) { + X(kr2hc_register) (p, r2hc_16, &desc); +} |