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266
fftw-3.3.10/dft/scalar/codelets/n1_8.c
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266
fftw-3.3.10/dft/scalar/codelets/n1_8.c
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/*
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* Copyright (c) 2003, 2007-14 Matteo Frigo
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* Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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/* This file was automatically generated --- DO NOT EDIT */
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/* Generated on Tue Sep 14 10:44:24 EDT 2021 */
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#include "dft/codelet-dft.h"
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#if defined(ARCH_PREFERS_FMA) || defined(ISA_EXTENSION_PREFERS_FMA)
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/* Generated by: ../../../genfft/gen_notw.native -fma -compact -variables 4 -pipeline-latency 4 -n 8 -name n1_8 -include dft/scalar/n.h */
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/*
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* This function contains 52 FP additions, 8 FP multiplications,
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* (or, 44 additions, 0 multiplications, 8 fused multiply/add),
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* 28 stack variables, 1 constants, and 32 memory accesses
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*/
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#include "dft/scalar/n.h"
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static void n1_8(const R *ri, const R *ii, R *ro, R *io, stride is, stride os, INT v, INT ivs, INT ovs)
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{
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DK(KP707106781, +0.707106781186547524400844362104849039284835938);
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{
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INT i;
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for (i = v; i > 0; i = i - 1, ri = ri + ivs, ii = ii + ivs, ro = ro + ovs, io = io + ovs, MAKE_VOLATILE_STRIDE(32, is), MAKE_VOLATILE_STRIDE(32, os)) {
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E T3, Tn, Ti, TC, T6, TB, Tl, To, Td, TN, Tz, TH, Ta, TM, Tu;
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E TG;
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{
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E T1, T2, Tj, Tk;
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T1 = ri[0];
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T2 = ri[WS(is, 4)];
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T3 = T1 + T2;
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Tn = T1 - T2;
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{
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E Tg, Th, T4, T5;
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Tg = ii[0];
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Th = ii[WS(is, 4)];
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Ti = Tg + Th;
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TC = Tg - Th;
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T4 = ri[WS(is, 2)];
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T5 = ri[WS(is, 6)];
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T6 = T4 + T5;
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TB = T4 - T5;
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}
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Tj = ii[WS(is, 2)];
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Tk = ii[WS(is, 6)];
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Tl = Tj + Tk;
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To = Tj - Tk;
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{
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E Tb, Tc, Tv, Tw, Tx, Ty;
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Tb = ri[WS(is, 7)];
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Tc = ri[WS(is, 3)];
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Tv = Tb - Tc;
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Tw = ii[WS(is, 7)];
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Tx = ii[WS(is, 3)];
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Ty = Tw - Tx;
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Td = Tb + Tc;
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TN = Tw + Tx;
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Tz = Tv - Ty;
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TH = Tv + Ty;
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}
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{
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E T8, T9, Tq, Tr, Ts, Tt;
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T8 = ri[WS(is, 1)];
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T9 = ri[WS(is, 5)];
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Tq = T8 - T9;
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Tr = ii[WS(is, 1)];
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Ts = ii[WS(is, 5)];
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Tt = Tr - Ts;
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Ta = T8 + T9;
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TM = Tr + Ts;
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Tu = Tq + Tt;
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TG = Tt - Tq;
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}
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}
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{
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E T7, Te, TP, TQ;
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T7 = T3 + T6;
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Te = Ta + Td;
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ro[WS(os, 4)] = T7 - Te;
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ro[0] = T7 + Te;
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TP = Ti + Tl;
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TQ = TM + TN;
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io[WS(os, 4)] = TP - TQ;
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io[0] = TP + TQ;
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}
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{
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E Tf, Tm, TL, TO;
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Tf = Td - Ta;
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Tm = Ti - Tl;
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io[WS(os, 2)] = Tf + Tm;
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io[WS(os, 6)] = Tm - Tf;
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TL = T3 - T6;
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TO = TM - TN;
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ro[WS(os, 6)] = TL - TO;
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ro[WS(os, 2)] = TL + TO;
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}
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{
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E Tp, TA, TJ, TK;
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Tp = Tn + To;
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TA = Tu + Tz;
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ro[WS(os, 5)] = FNMS(KP707106781, TA, Tp);
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ro[WS(os, 1)] = FMA(KP707106781, TA, Tp);
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TJ = TC - TB;
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TK = TG + TH;
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io[WS(os, 5)] = FNMS(KP707106781, TK, TJ);
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io[WS(os, 1)] = FMA(KP707106781, TK, TJ);
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}
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{
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E TD, TE, TF, TI;
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TD = TB + TC;
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TE = Tz - Tu;
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io[WS(os, 7)] = FNMS(KP707106781, TE, TD);
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io[WS(os, 3)] = FMA(KP707106781, TE, TD);
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TF = Tn - To;
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TI = TG - TH;
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ro[WS(os, 7)] = FNMS(KP707106781, TI, TF);
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ro[WS(os, 3)] = FMA(KP707106781, TI, TF);
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}
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}
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}
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}
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static const kdft_desc desc = { 8, "n1_8", { 44, 0, 8, 0 }, &GENUS, 0, 0, 0, 0 };
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void X(codelet_n1_8) (planner *p) { X(kdft_register) (p, n1_8, &desc);
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}
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#else
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/* Generated by: ../../../genfft/gen_notw.native -compact -variables 4 -pipeline-latency 4 -n 8 -name n1_8 -include dft/scalar/n.h */
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/*
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* This function contains 52 FP additions, 4 FP multiplications,
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* (or, 52 additions, 4 multiplications, 0 fused multiply/add),
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* 28 stack variables, 1 constants, and 32 memory accesses
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*/
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#include "dft/scalar/n.h"
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static void n1_8(const R *ri, const R *ii, R *ro, R *io, stride is, stride os, INT v, INT ivs, INT ovs)
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{
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DK(KP707106781, +0.707106781186547524400844362104849039284835938);
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{
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INT i;
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for (i = v; i > 0; i = i - 1, ri = ri + ivs, ii = ii + ivs, ro = ro + ovs, io = io + ovs, MAKE_VOLATILE_STRIDE(32, is), MAKE_VOLATILE_STRIDE(32, os)) {
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E T3, Tn, Ti, TC, T6, TB, Tl, To, Td, TN, Tz, TH, Ta, TM, Tu;
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E TG;
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{
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E T1, T2, Tj, Tk;
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T1 = ri[0];
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T2 = ri[WS(is, 4)];
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T3 = T1 + T2;
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Tn = T1 - T2;
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{
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E Tg, Th, T4, T5;
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Tg = ii[0];
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Th = ii[WS(is, 4)];
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Ti = Tg + Th;
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TC = Tg - Th;
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T4 = ri[WS(is, 2)];
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T5 = ri[WS(is, 6)];
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T6 = T4 + T5;
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TB = T4 - T5;
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}
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Tj = ii[WS(is, 2)];
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Tk = ii[WS(is, 6)];
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Tl = Tj + Tk;
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To = Tj - Tk;
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{
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E Tb, Tc, Tv, Tw, Tx, Ty;
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Tb = ri[WS(is, 7)];
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Tc = ri[WS(is, 3)];
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Tv = Tb - Tc;
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Tw = ii[WS(is, 7)];
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Tx = ii[WS(is, 3)];
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Ty = Tw - Tx;
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Td = Tb + Tc;
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TN = Tw + Tx;
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Tz = Tv - Ty;
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TH = Tv + Ty;
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}
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{
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E T8, T9, Tq, Tr, Ts, Tt;
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T8 = ri[WS(is, 1)];
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T9 = ri[WS(is, 5)];
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Tq = T8 - T9;
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Tr = ii[WS(is, 1)];
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Ts = ii[WS(is, 5)];
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Tt = Tr - Ts;
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Ta = T8 + T9;
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TM = Tr + Ts;
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Tu = Tq + Tt;
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TG = Tt - Tq;
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}
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}
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{
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E T7, Te, TP, TQ;
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T7 = T3 + T6;
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Te = Ta + Td;
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ro[WS(os, 4)] = T7 - Te;
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ro[0] = T7 + Te;
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TP = Ti + Tl;
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TQ = TM + TN;
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io[WS(os, 4)] = TP - TQ;
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io[0] = TP + TQ;
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}
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{
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E Tf, Tm, TL, TO;
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Tf = Td - Ta;
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Tm = Ti - Tl;
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io[WS(os, 2)] = Tf + Tm;
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io[WS(os, 6)] = Tm - Tf;
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TL = T3 - T6;
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TO = TM - TN;
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ro[WS(os, 6)] = TL - TO;
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ro[WS(os, 2)] = TL + TO;
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}
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{
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E Tp, TA, TJ, TK;
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Tp = Tn + To;
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TA = KP707106781 * (Tu + Tz);
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ro[WS(os, 5)] = Tp - TA;
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ro[WS(os, 1)] = Tp + TA;
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TJ = TC - TB;
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TK = KP707106781 * (TG + TH);
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io[WS(os, 5)] = TJ - TK;
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io[WS(os, 1)] = TJ + TK;
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}
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{
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E TD, TE, TF, TI;
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TD = TB + TC;
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TE = KP707106781 * (Tz - Tu);
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io[WS(os, 7)] = TD - TE;
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io[WS(os, 3)] = TD + TE;
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TF = Tn - To;
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TI = KP707106781 * (TG - TH);
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ro[WS(os, 7)] = TF - TI;
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ro[WS(os, 3)] = TF + TI;
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}
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}
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}
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}
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static const kdft_desc desc = { 8, "n1_8", { 52, 4, 0, 0 }, &GENUS, 0, 0, 0, 0 };
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void X(codelet_n1_8) (planner *p) { X(kdft_register) (p, n1_8, &desc);
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}
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#endif
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