diff options
Diffstat (limited to 'src/fftw3/dft/codelets/standard/n1_16.c')
| -rw-r--r-- | src/fftw3/dft/codelets/standard/n1_16.c | 294 |
1 files changed, 294 insertions, 0 deletions
diff --git a/src/fftw3/dft/codelets/standard/n1_16.c b/src/fftw3/dft/codelets/standard/n1_16.c new file mode 100644 index 0000000..6c813a1 --- /dev/null +++ b/src/fftw3/dft/codelets/standard/n1_16.c @@ -0,0 +1,294 @@ +/* + * 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 21:29:37 EDT 2003 */ + +#include "codelet-dft.h" + +/* Generated by: /homee/stevenj/cvs/fftw3.0.1/genfft/gen_notw -compact -variables 4 -n 16 -name n1_16 -include n.h */ + +/* + * This function contains 144 FP additions, 24 FP multiplications, + * (or, 136 additions, 16 multiplications, 8 fused multiply/add), + * 50 stack variables, and 64 memory accesses + */ +/* + * Generator Id's : + * $Id: n1_16.c,v 1.1 2008/10/17 06:11:09 scuri Exp $ + * $Id: n1_16.c,v 1.1 2008/10/17 06:11:09 scuri Exp $ + * $Id: n1_16.c,v 1.1 2008/10/17 06:11:09 scuri Exp $ + */ + +#include "n.h" + +static void n1_16(const R *ri, const R *ii, R *ro, R *io, stride is, stride os, int v, int ivs, int ovs) +{ + DK(KP382683432, +0.382683432365089771728459984030398866761344562); + DK(KP923879532, +0.923879532511286756128183189396788286822416626); + DK(KP707106781, +0.707106781186547524400844362104849039284835938); + int i; + for (i = v; i > 0; i = i - 1, ri = ri + ivs, ii = ii + ivs, ro = ro + ovs, io = io + ovs) { + E T7, T1R, T25, TC, TN, T1x, T1H, T1l, Tt, T22, T2h, T1b, T1g, T1E, T1Z; + E T1D, Te, T1S, T26, TJ, TQ, T1m, T1n, TT, Tm, T1X, T2g, T10, T15, T1B; + E T1U, T1A; + { + E T3, TL, Ty, T1k, T6, T1j, TB, TM; + { + E T1, T2, Tw, Tx; + T1 = ri[0]; + T2 = ri[WS(is, 8)]; + T3 = T1 + T2; + TL = T1 - T2; + Tw = ii[0]; + Tx = ii[WS(is, 8)]; + Ty = Tw + Tx; + T1k = Tw - Tx; + } + { + E T4, T5, Tz, TA; + T4 = ri[WS(is, 4)]; + T5 = ri[WS(is, 12)]; + T6 = T4 + T5; + T1j = T4 - T5; + Tz = ii[WS(is, 4)]; + TA = ii[WS(is, 12)]; + TB = Tz + TA; + TM = Tz - TA; + } + T7 = T3 + T6; + T1R = T3 - T6; + T25 = Ty - TB; + TC = Ty + TB; + TN = TL - TM; + T1x = TL + TM; + T1H = T1k - T1j; + T1l = T1j + T1k; + } + { + E Tp, T17, T1f, T20, Ts, T1c, T1a, T21; + { + E Tn, To, T1d, T1e; + Tn = ri[WS(is, 15)]; + To = ri[WS(is, 7)]; + Tp = Tn + To; + T17 = Tn - To; + T1d = ii[WS(is, 15)]; + T1e = ii[WS(is, 7)]; + T1f = T1d - T1e; + T20 = T1d + T1e; + } + { + E Tq, Tr, T18, T19; + Tq = ri[WS(is, 3)]; + Tr = ri[WS(is, 11)]; + Ts = Tq + Tr; + T1c = Tq - Tr; + T18 = ii[WS(is, 3)]; + T19 = ii[WS(is, 11)]; + T1a = T18 - T19; + T21 = T18 + T19; + } + Tt = Tp + Ts; + T22 = T20 - T21; + T2h = T20 + T21; + T1b = T17 - T1a; + T1g = T1c + T1f; + T1E = T1f - T1c; + T1Z = Tp - Ts; + T1D = T17 + T1a; + } + { + E Ta, TP, TF, TO, Td, TR, TI, TS; + { + E T8, T9, TD, TE; + T8 = ri[WS(is, 2)]; + T9 = ri[WS(is, 10)]; + Ta = T8 + T9; + TP = T8 - T9; + TD = ii[WS(is, 2)]; + TE = ii[WS(is, 10)]; + TF = TD + TE; + TO = TD - TE; + } + { + E Tb, Tc, TG, TH; + Tb = ri[WS(is, 14)]; + Tc = ri[WS(is, 6)]; + Td = Tb + Tc; + TR = Tb - Tc; + TG = ii[WS(is, 14)]; + TH = ii[WS(is, 6)]; + TI = TG + TH; + TS = TG - TH; + } + Te = Ta + Td; + T1S = TF - TI; + T26 = Td - Ta; + TJ = TF + TI; + TQ = TO - TP; + T1m = TR - TS; + T1n = TP + TO; + TT = TR + TS; + } + { + E Ti, T11, TZ, T1V, Tl, TW, T14, T1W; + { + E Tg, Th, TX, TY; + Tg = ri[WS(is, 1)]; + Th = ri[WS(is, 9)]; + Ti = Tg + Th; + T11 = Tg - Th; + TX = ii[WS(is, 1)]; + TY = ii[WS(is, 9)]; + TZ = TX - TY; + T1V = TX + TY; + } + { + E Tj, Tk, T12, T13; + Tj = ri[WS(is, 5)]; + Tk = ri[WS(is, 13)]; + Tl = Tj + Tk; + TW = Tj - Tk; + T12 = ii[WS(is, 5)]; + T13 = ii[WS(is, 13)]; + T14 = T12 - T13; + T1W = T12 + T13; + } + Tm = Ti + Tl; + T1X = T1V - T1W; + T2g = T1V + T1W; + T10 = TW + TZ; + T15 = T11 - T14; + T1B = T11 + T14; + T1U = Ti - Tl; + T1A = TZ - TW; + } + { + E Tf, Tu, T2j, T2k; + Tf = T7 + Te; + Tu = Tm + Tt; + ro[WS(os, 8)] = Tf - Tu; + ro[0] = Tf + Tu; + T2j = TC + TJ; + T2k = T2g + T2h; + io[WS(os, 8)] = T2j - T2k; + io[0] = T2j + T2k; + } + { + E Tv, TK, T2f, T2i; + Tv = Tt - Tm; + TK = TC - TJ; + io[WS(os, 4)] = Tv + TK; + io[WS(os, 12)] = TK - Tv; + T2f = T7 - Te; + T2i = T2g - T2h; + ro[WS(os, 12)] = T2f - T2i; + ro[WS(os, 4)] = T2f + T2i; + } + { + E T1T, T27, T24, T28, T1Y, T23; + T1T = T1R + T1S; + T27 = T25 - T26; + T1Y = T1U + T1X; + T23 = T1Z - T22; + T24 = KP707106781 * (T1Y + T23); + T28 = KP707106781 * (T23 - T1Y); + ro[WS(os, 10)] = T1T - T24; + io[WS(os, 6)] = T27 + T28; + ro[WS(os, 2)] = T1T + T24; + io[WS(os, 14)] = T27 - T28; + } + { + E T29, T2d, T2c, T2e, T2a, T2b; + T29 = T1R - T1S; + T2d = T26 + T25; + T2a = T1X - T1U; + T2b = T1Z + T22; + T2c = KP707106781 * (T2a - T2b); + T2e = KP707106781 * (T2a + T2b); + ro[WS(os, 14)] = T29 - T2c; + io[WS(os, 2)] = T2d + T2e; + ro[WS(os, 6)] = T29 + T2c; + io[WS(os, 10)] = T2d - T2e; + } + { + E TV, T1r, T1p, T1v, T1i, T1q, T1u, T1w, TU, T1o; + TU = KP707106781 * (TQ - TT); + TV = TN + TU; + T1r = TN - TU; + T1o = KP707106781 * (T1m - T1n); + T1p = T1l - T1o; + T1v = T1l + T1o; + { + E T16, T1h, T1s, T1t; + T16 = FMA(KP923879532, T10, KP382683432 * T15); + T1h = FNMS(KP923879532, T1g, KP382683432 * T1b); + T1i = T16 + T1h; + T1q = T1h - T16; + T1s = FNMS(KP923879532, T15, KP382683432 * T10); + T1t = FMA(KP382683432, T1g, KP923879532 * T1b); + T1u = T1s - T1t; + T1w = T1s + T1t; + } + ro[WS(os, 11)] = TV - T1i; + io[WS(os, 11)] = T1v - T1w; + ro[WS(os, 3)] = TV + T1i; + io[WS(os, 3)] = T1v + T1w; + io[WS(os, 15)] = T1p - T1q; + ro[WS(os, 15)] = T1r - T1u; + io[WS(os, 7)] = T1p + T1q; + ro[WS(os, 7)] = T1r + T1u; + } + { + E T1z, T1L, T1J, T1P, T1G, T1K, T1O, T1Q, T1y, T1I; + T1y = KP707106781 * (T1n + T1m); + T1z = T1x + T1y; + T1L = T1x - T1y; + T1I = KP707106781 * (TQ + TT); + T1J = T1H - T1I; + T1P = T1H + T1I; + { + E T1C, T1F, T1M, T1N; + T1C = FMA(KP382683432, T1A, KP923879532 * T1B); + T1F = FNMS(KP382683432, T1E, KP923879532 * T1D); + T1G = T1C + T1F; + T1K = T1F - T1C; + T1M = FNMS(KP382683432, T1B, KP923879532 * T1A); + T1N = FMA(KP923879532, T1E, KP382683432 * T1D); + T1O = T1M - T1N; + T1Q = T1M + T1N; + } + ro[WS(os, 9)] = T1z - T1G; + io[WS(os, 9)] = T1P - T1Q; + ro[WS(os, 1)] = T1z + T1G; + io[WS(os, 1)] = T1P + T1Q; + io[WS(os, 13)] = T1J - T1K; + ro[WS(os, 13)] = T1L - T1O; + io[WS(os, 5)] = T1J + T1K; + ro[WS(os, 5)] = T1L + T1O; + } + } +} + +static const kdft_desc desc = { 16, "n1_16", {136, 16, 8, 0}, &GENUS, 0, 0, 0, 0 }; +void X(codelet_n1_16) (planner *p) { + X(kdft_register) (p, n1_16, &desc); +} |