diff options
Diffstat (limited to 'src/fftw3/rdft/codelets/r2r/e01_8.c')
| -rw-r--r-- | src/fftw3/rdft/codelets/r2r/e01_8.c | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/src/fftw3/rdft/codelets/r2r/e01_8.c b/src/fftw3/rdft/codelets/r2r/e01_8.c new file mode 100644 index 0000000..b48371c --- /dev/null +++ b/src/fftw3/rdft/codelets/r2r/e01_8.c @@ -0,0 +1,118 @@ +/* + * 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 22:22:02 EDT 2003 */ + +#include "codelet-rdft.h" + +/* Generated by: /homee/stevenj/cvs/fftw3.0.1/genfft/gen_r2r -compact -variables 4 -redft01 -n 8 -name e01_8 -include r2r.h */ + +/* + * This function contains 26 FP additions, 15 FP multiplications, + * (or, 20 additions, 9 multiplications, 6 fused multiply/add), + * 27 stack variables, and 16 memory accesses + */ +/* + * Generator Id's : + * $Id: e01_8.c,v 1.1 2008/10/17 06:13:17 scuri Exp $ + * $Id: e01_8.c,v 1.1 2008/10/17 06:13:17 scuri Exp $ + * $Id: e01_8.c,v 1.1 2008/10/17 06:13:17 scuri Exp $ + */ + +#include "r2r.h" + +static void e01_8_0(const R *I, R *O, stride istride, stride ostride) +{ + DK(KP1_662939224, +1.662939224605090474157576755235811513477121624); + DK(KP1_111140466, +1.111140466039204449485661627897065748749874382); + DK(KP390180644, +0.390180644032256535696569736954044481855383236); + DK(KP1_961570560, +1.961570560806460898252364472268478073947867462); + DK(KP707106781, +0.707106781186547524400844362104849039284835938); + DK(KP1_414213562, +1.414213562373095048801688724209698078569671875); + DK(KP765366864, +0.765366864730179543456919968060797733522689125); + DK(KP1_847759065, +1.847759065022573512256366378793576573644833252); + { + E T7, Tl, T4, Tk, Td, To, Tg, Tn; + { + E T5, T6, T1, T3, T2; + T5 = I[WS(istride, 2)]; + T6 = I[WS(istride, 6)]; + T7 = FMA(KP1_847759065, T5, KP765366864 * T6); + Tl = FNMS(KP1_847759065, T6, KP765366864 * T5); + T1 = I[0]; + T2 = I[WS(istride, 4)]; + T3 = KP1_414213562 * T2; + T4 = T1 + T3; + Tk = T1 - T3; + { + E T9, Tf, Tc, Te, Ta, Tb; + T9 = I[WS(istride, 1)]; + Tf = I[WS(istride, 7)]; + Ta = I[WS(istride, 5)]; + Tb = I[WS(istride, 3)]; + Tc = KP707106781 * (Ta + Tb); + Te = KP707106781 * (Ta - Tb); + Td = T9 + Tc; + To = Te + Tf; + Tg = Te - Tf; + Tn = T9 - Tc; + } + } + { + E T8, Th, Tq, Tr; + T8 = T4 + T7; + Th = FNMS(KP390180644, Tg, KP1_961570560 * Td); + O[WS(ostride, 7)] = T8 - Th; + O[0] = T8 + Th; + Tq = Tk - Tl; + Tr = FMA(KP1_111140466, Tn, KP1_662939224 * To); + O[WS(ostride, 5)] = Tq - Tr; + O[WS(ostride, 2)] = Tq + Tr; + } + { + E Ti, Tj, Tm, Tp; + Ti = T4 - T7; + Tj = FMA(KP390180644, Td, KP1_961570560 * Tg); + O[WS(ostride, 4)] = Ti - Tj; + O[WS(ostride, 3)] = Ti + Tj; + Tm = Tk + Tl; + Tp = FNMS(KP1_111140466, To, KP1_662939224 * Tn); + O[WS(ostride, 6)] = Tm - Tp; + O[WS(ostride, 1)] = Tm + Tp; + } + } +} + +static void e01_8(const R *I, R *O, stride is, stride os, int v, int ivs, int ovs) +{ + int i; + for (i = v; i > 0; --i) { + e01_8_0(I, O, is, os); + I += ivs; + O += ovs; + } +} + +static const kr2r_desc desc = { 8, "e01_8", {20, 9, 6, 0}, &GENUS, REDFT01, 0, 0, 0, 0 }; + +void X(codelet_e01_8) (planner *p) { + X(kr2r_register) (p, e01_8, &desc); +} |