diff options
Diffstat (limited to 'src/fftw3/rdft/codelets/r2hc/r2hcII_16.c')
| -rw-r--r-- | src/fftw3/rdft/codelets/r2hc/r2hcII_16.c | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/src/fftw3/rdft/codelets/r2hc/r2hcII_16.c b/src/fftw3/rdft/codelets/r2hc/r2hcII_16.c new file mode 100644 index 0000000..4535bde --- /dev/null +++ b/src/fftw3/rdft/codelets/r2hc/r2hcII_16.c @@ -0,0 +1,171 @@ +/* + * 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 21:58:21 EDT 2003 */ + +#include "codelet-rdft.h" + +/* Generated by: /homee/stevenj/cvs/fftw3.0.1/genfft/gen_r2hc -compact -variables 4 -n 16 -name r2hcII_16 -dft-II -include r2hcII.h */ + +/* + * This function contains 66 FP additions, 30 FP multiplications, + * (or, 54 additions, 18 multiplications, 12 fused multiply/add), + * 32 stack variables, and 32 memory accesses + */ +/* + * Generator Id's : + * $Id: r2hcII_16.c,v 1.1 2008/10/17 06:12:34 scuri Exp $ + * $Id: r2hcII_16.c,v 1.1 2008/10/17 06:12:34 scuri Exp $ + * $Id: r2hcII_16.c,v 1.1 2008/10/17 06:12:34 scuri Exp $ + */ + +#include "r2hcII.h" + +static void r2hcII_16(const R *I, R *ro, R *io, stride is, stride ros, stride ios, int v, int ivs, int ovs) +{ + DK(KP555570233, +0.555570233019602224742830813948532874374937191); + DK(KP831469612, +0.831469612302545237078788377617905756738560812); + DK(KP980785280, +0.980785280403230449126182236134239036973933731); + DK(KP195090322, +0.195090322016128267848284868477022240927691618); + DK(KP382683432, +0.382683432365089771728459984030398866761344562); + DK(KP923879532, +0.923879532511286756128183189396788286822416626); + DK(KP707106781, +0.707106781186547524400844362104849039284835938); + int i; + for (i = v; i > 0; i = i - 1, I = I + ivs, ro = ro + ovs, io = io + ovs) { + E T5, T11, TB, TV, Tr, TK, Tu, TJ, Ti, TH, Tl, TG, Tc, T10, TE; + E TS; + { + E T1, TU, T4, TT, T2, T3; + T1 = I[0]; + TU = I[WS(is, 8)]; + T2 = I[WS(is, 4)]; + T3 = I[WS(is, 12)]; + T4 = KP707106781 * (T2 - T3); + TT = KP707106781 * (T2 + T3); + T5 = T1 + T4; + T11 = TU - TT; + TB = T1 - T4; + TV = TT + TU; + } + { + E Tq, Tt, Tp, Ts, Tn, To; + Tq = I[WS(is, 15)]; + Tt = I[WS(is, 7)]; + Tn = I[WS(is, 3)]; + To = I[WS(is, 11)]; + Tp = KP707106781 * (Tn - To); + Ts = KP707106781 * (Tn + To); + Tr = Tp - Tq; + TK = Tt - Ts; + Tu = Ts + Tt; + TJ = Tp + Tq; + } + { + E Te, Tk, Th, Tj, Tf, Tg; + Te = I[WS(is, 1)]; + Tk = I[WS(is, 9)]; + Tf = I[WS(is, 5)]; + Tg = I[WS(is, 13)]; + Th = KP707106781 * (Tf - Tg); + Tj = KP707106781 * (Tf + Tg); + Ti = Te + Th; + TH = Tk - Tj; + Tl = Tj + Tk; + TG = Te - Th; + } + { + E T8, TC, Tb, TD; + { + E T6, T7, T9, Ta; + T6 = I[WS(is, 2)]; + T7 = I[WS(is, 10)]; + T8 = FNMS(KP382683432, T7, KP923879532 * T6); + TC = FMA(KP382683432, T6, KP923879532 * T7); + T9 = I[WS(is, 6)]; + Ta = I[WS(is, 14)]; + Tb = FNMS(KP923879532, Ta, KP382683432 * T9); + TD = FMA(KP923879532, T9, KP382683432 * Ta); + } + Tc = T8 + Tb; + T10 = Tb - T8; + TE = TC - TD; + TS = TC + TD; + } + { + E Td, TW, Tw, TR, Tm, Tv; + Td = T5 - Tc; + TW = TS + TV; + Tm = FMA(KP195090322, Ti, KP980785280 * Tl); + Tv = FNMS(KP980785280, Tu, KP195090322 * Tr); + Tw = Tm + Tv; + TR = Tv - Tm; + ro[WS(ros, 4)] = Td - Tw; + io[WS(ios, 7)] = TR + TW; + ro[WS(ros, 3)] = Td + Tw; + io[0] = TR - TW; + } + { + E Tx, TY, TA, TX, Ty, Tz; + Tx = T5 + Tc; + TY = TV - TS; + Ty = FNMS(KP195090322, Tl, KP980785280 * Ti); + Tz = FMA(KP980785280, Tr, KP195090322 * Tu); + TA = Ty + Tz; + TX = Tz - Ty; + ro[WS(ros, 7)] = Tx - TA; + io[WS(ios, 3)] = TX + TY; + ro[0] = Tx + TA; + io[WS(ios, 4)] = TX - TY; + } + { + E TF, T12, TM, TZ, TI, TL; + TF = TB + TE; + T12 = T10 - T11; + TI = FMA(KP831469612, TG, KP555570233 * TH); + TL = FMA(KP831469612, TJ, KP555570233 * TK); + TM = TI - TL; + TZ = TI + TL; + ro[WS(ros, 6)] = TF - TM; + io[WS(ios, 2)] = T12 - TZ; + ro[WS(ros, 1)] = TF + TM; + io[WS(ios, 5)] = -(TZ + T12); + } + { + E TN, T14, TQ, T13, TO, TP; + TN = TB - TE; + T14 = T10 + T11; + TO = FNMS(KP555570233, TJ, KP831469612 * TK); + TP = FNMS(KP555570233, TG, KP831469612 * TH); + TQ = TO - TP; + T13 = TP + TO; + ro[WS(ros, 5)] = TN - TQ; + io[WS(ios, 1)] = T13 + T14; + ro[WS(ros, 2)] = TN + TQ; + io[WS(ios, 6)] = T13 - T14; + } + } +} + +static const kr2hc_desc desc = { 16, "r2hcII_16", {54, 18, 12, 0}, &GENUS, 0, 0, 0, 0, 0 }; + +void X(codelet_r2hcII_16) (planner *p) { + X(kr2hcII_register) (p, r2hcII_16, &desc); +} |