Mercurial > hg > sv-dependency-builds
diff src/fftw-3.3.3/dft/scalar/codelets/n1_6.c @ 10:37bf6b4a2645
Add FFTW3
| author | Chris Cannam |
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| date | Wed, 20 Mar 2013 15:35:50 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/fftw-3.3.3/dft/scalar/codelets/n1_6.c Wed Mar 20 15:35:50 2013 +0000 @@ -0,0 +1,214 @@ +/* + * Copyright (c) 2003, 2007-11 Matteo Frigo + * Copyright (c) 2003, 2007-11 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + +/* This file was automatically generated --- DO NOT EDIT */ +/* Generated on Sun Nov 25 07:35:42 EST 2012 */ + +#include "codelet-dft.h" + +#ifdef HAVE_FMA + +/* Generated by: ../../../genfft/gen_notw.native -fma -reorder-insns -schedule-for-pipeline -compact -variables 4 -pipeline-latency 4 -n 6 -name n1_6 -include n.h */ + +/* + * This function contains 36 FP additions, 12 FP multiplications, + * (or, 24 additions, 0 multiplications, 12 fused multiply/add), + * 30 stack variables, 2 constants, and 24 memory accesses + */ +#include "n.h" + +static void n1_6(const R *ri, const R *ii, R *ro, R *io, stride is, stride os, INT v, INT ivs, INT ovs) +{ + DK(KP866025403, +0.866025403784438646763723170752936183471402627); + DK(KP500000000, +0.500000000000000000000000000000000000000000000); + { + INT i; + for (i = v; i > 0; i = i - 1, ri = ri + ivs, ii = ii + ivs, ro = ro + ovs, io = io + ovs, MAKE_VOLATILE_STRIDE(24, is), MAKE_VOLATILE_STRIDE(24, os)) { + E TA, Tz; + { + E Tb, T3, Tx, Tp, Tj, Te, Ts, Ta, Tu, Ti, Tk; + { + E T1, T2, Tn, To; + T1 = ri[0]; + T2 = ri[WS(is, 3)]; + Tn = ii[0]; + To = ii[WS(is, 3)]; + { + E T4, T5, T7, T8; + T4 = ri[WS(is, 2)]; + Tb = T1 + T2; + T3 = T1 - T2; + Tx = Tn + To; + Tp = Tn - To; + T5 = ri[WS(is, 5)]; + T7 = ri[WS(is, 4)]; + T8 = ri[WS(is, 1)]; + { + E Tg, Tc, T6, Td, T9, Th; + Tg = ii[WS(is, 2)]; + Tc = T4 + T5; + T6 = T4 - T5; + Td = T7 + T8; + T9 = T7 - T8; + Th = ii[WS(is, 5)]; + Tj = ii[WS(is, 4)]; + Te = Tc + Td; + TA = Td - Tc; + Ts = T9 - T6; + Ta = T6 + T9; + Tu = Tg + Th; + Ti = Tg - Th; + Tk = ii[WS(is, 1)]; + } + } + } + ro[WS(os, 3)] = T3 + Ta; + ro[0] = Tb + Te; + { + E Tf, Tv, Tl, Ty, Tr; + Tf = FNMS(KP500000000, Ta, T3); + Tv = Tj + Tk; + Tl = Tj - Tk; + { + E Tt, Tw, Tq, Tm; + Tt = FNMS(KP500000000, Te, Tb); + Ty = Tu + Tv; + Tw = Tu - Tv; + Tq = Ti + Tl; + Tm = Ti - Tl; + io[0] = Tx + Ty; + ro[WS(os, 1)] = FMA(KP866025403, Tm, Tf); + ro[WS(os, 5)] = FNMS(KP866025403, Tm, Tf); + Tr = FNMS(KP500000000, Tq, Tp); + io[WS(os, 3)] = Tp + Tq; + ro[WS(os, 2)] = FNMS(KP866025403, Tw, Tt); + ro[WS(os, 4)] = FMA(KP866025403, Tw, Tt); + } + io[WS(os, 5)] = FNMS(KP866025403, Ts, Tr); + io[WS(os, 1)] = FMA(KP866025403, Ts, Tr); + Tz = FNMS(KP500000000, Ty, Tx); + } + } + io[WS(os, 4)] = FMA(KP866025403, TA, Tz); + io[WS(os, 2)] = FNMS(KP866025403, TA, Tz); + } + } +} + +static const kdft_desc desc = { 6, "n1_6", {24, 0, 12, 0}, &GENUS, 0, 0, 0, 0 }; + +void X(codelet_n1_6) (planner *p) { + X(kdft_register) (p, n1_6, &desc); +} + +#else /* HAVE_FMA */ + +/* Generated by: ../../../genfft/gen_notw.native -compact -variables 4 -pipeline-latency 4 -n 6 -name n1_6 -include n.h */ + +/* + * This function contains 36 FP additions, 8 FP multiplications, + * (or, 32 additions, 4 multiplications, 4 fused multiply/add), + * 23 stack variables, 2 constants, and 24 memory accesses + */ +#include "n.h" + +static void n1_6(const R *ri, const R *ii, R *ro, R *io, stride is, stride os, INT v, INT ivs, INT ovs) +{ + DK(KP866025403, +0.866025403784438646763723170752936183471402627); + DK(KP500000000, +0.500000000000000000000000000000000000000000000); + { + INT i; + for (i = v; i > 0; i = i - 1, ri = ri + ivs, ii = ii + ivs, ro = ro + ovs, io = io + ovs, MAKE_VOLATILE_STRIDE(24, is), MAKE_VOLATILE_STRIDE(24, os)) { + E T3, Tb, Tq, Tx, T6, Tc, T9, Td, Ta, Te, Ti, Tu, Tl, Tv, Tr; + E Ty; + { + E T1, T2, To, Tp; + T1 = ri[0]; + T2 = ri[WS(is, 3)]; + T3 = T1 - T2; + Tb = T1 + T2; + To = ii[0]; + Tp = ii[WS(is, 3)]; + Tq = To - Tp; + Tx = To + Tp; + } + { + E T4, T5, T7, T8; + T4 = ri[WS(is, 2)]; + T5 = ri[WS(is, 5)]; + T6 = T4 - T5; + Tc = T4 + T5; + T7 = ri[WS(is, 4)]; + T8 = ri[WS(is, 1)]; + T9 = T7 - T8; + Td = T7 + T8; + } + Ta = T6 + T9; + Te = Tc + Td; + { + E Tg, Th, Tj, Tk; + Tg = ii[WS(is, 2)]; + Th = ii[WS(is, 5)]; + Ti = Tg - Th; + Tu = Tg + Th; + Tj = ii[WS(is, 4)]; + Tk = ii[WS(is, 1)]; + Tl = Tj - Tk; + Tv = Tj + Tk; + } + Tr = Ti + Tl; + Ty = Tu + Tv; + ro[WS(os, 3)] = T3 + Ta; + io[WS(os, 3)] = Tq + Tr; + ro[0] = Tb + Te; + io[0] = Tx + Ty; + { + E Tf, Tm, Tn, Ts; + Tf = FNMS(KP500000000, Ta, T3); + Tm = KP866025403 * (Ti - Tl); + ro[WS(os, 5)] = Tf - Tm; + ro[WS(os, 1)] = Tf + Tm; + Tn = KP866025403 * (T9 - T6); + Ts = FNMS(KP500000000, Tr, Tq); + io[WS(os, 1)] = Tn + Ts; + io[WS(os, 5)] = Ts - Tn; + } + { + E Tt, Tw, Tz, TA; + Tt = FNMS(KP500000000, Te, Tb); + Tw = KP866025403 * (Tu - Tv); + ro[WS(os, 2)] = Tt - Tw; + ro[WS(os, 4)] = Tt + Tw; + Tz = FNMS(KP500000000, Ty, Tx); + TA = KP866025403 * (Td - Tc); + io[WS(os, 2)] = Tz - TA; + io[WS(os, 4)] = TA + Tz; + } + } + } +} + +static const kdft_desc desc = { 6, "n1_6", {32, 4, 4, 0}, &GENUS, 0, 0, 0, 0 }; + +void X(codelet_n1_6) (planner *p) { + X(kdft_register) (p, n1_6, &desc); +} + +#endif /* HAVE_FMA */