167 lines
4.8 KiB
C
167 lines
4.8 KiB
C
/*
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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 10:44:26 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_twiddle.native -fma -compact -variables 4 -pipeline-latency 4 -n 3 -name t1_3 -include dft/scalar/t.h */
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/*
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* This function contains 16 FP additions, 14 FP multiplications,
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* (or, 6 additions, 4 multiplications, 10 fused multiply/add),
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* 15 stack variables, 2 constants, and 12 memory accesses
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*/
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#include "dft/scalar/t.h"
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static void t1_3(R *ri, R *ii, const R *W, stride rs, INT mb, INT me, INT ms)
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{
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DK(KP866025403, +0.866025403784438646763723170752936183471402627);
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DK(KP500000000, +0.500000000000000000000000000000000000000000000);
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{
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INT m;
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for (m = mb, W = W + (mb * 4); m < me; m = m + 1, ri = ri + ms, ii = ii + ms, W = W + 4, MAKE_VOLATILE_STRIDE(6, rs)) {
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E T1, Tm, T7, Th, Td, Tj;
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T1 = ri[0];
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Tm = ii[0];
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{
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E T3, T6, T4, Tg, T2, T5;
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T3 = ri[WS(rs, 1)];
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T6 = ii[WS(rs, 1)];
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T2 = W[0];
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T4 = T2 * T3;
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Tg = T2 * T6;
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T5 = W[1];
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T7 = FMA(T5, T6, T4);
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Th = FNMS(T5, T3, Tg);
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}
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{
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E T9, Tc, Ta, Ti, T8, Tb;
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T9 = ri[WS(rs, 2)];
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Tc = ii[WS(rs, 2)];
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T8 = W[2];
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Ta = T8 * T9;
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Ti = T8 * Tc;
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Tb = W[3];
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Td = FMA(Tb, Tc, Ta);
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Tj = FNMS(Tb, T9, Ti);
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}
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{
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E Tk, Te, Tf, To, Tl, Tn;
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Tk = Th - Tj;
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Te = T7 + Td;
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Tf = FNMS(KP500000000, Te, T1);
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ri[0] = T1 + Te;
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ri[WS(rs, 1)] = FMA(KP866025403, Tk, Tf);
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ri[WS(rs, 2)] = FNMS(KP866025403, Tk, Tf);
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To = Td - T7;
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Tl = Th + Tj;
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Tn = FNMS(KP500000000, Tl, Tm);
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ii[0] = Tl + Tm;
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ii[WS(rs, 2)] = FNMS(KP866025403, To, Tn);
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ii[WS(rs, 1)] = FMA(KP866025403, To, Tn);
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}
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}
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}
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}
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static const tw_instr twinstr[] = {
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{ TW_FULL, 0, 3 },
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{ TW_NEXT, 1, 0 }
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};
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static const ct_desc desc = { 3, "t1_3", twinstr, &GENUS, { 6, 4, 10, 0 }, 0, 0, 0 };
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void X(codelet_t1_3) (planner *p) {
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X(kdft_dit_register) (p, t1_3, &desc);
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}
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#else
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/* Generated by: ../../../genfft/gen_twiddle.native -compact -variables 4 -pipeline-latency 4 -n 3 -name t1_3 -include dft/scalar/t.h */
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/*
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* This function contains 16 FP additions, 12 FP multiplications,
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* (or, 10 additions, 6 multiplications, 6 fused multiply/add),
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* 15 stack variables, 2 constants, and 12 memory accesses
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*/
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#include "dft/scalar/t.h"
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static void t1_3(R *ri, R *ii, const R *W, stride rs, INT mb, INT me, INT ms)
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{
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DK(KP866025403, +0.866025403784438646763723170752936183471402627);
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DK(KP500000000, +0.500000000000000000000000000000000000000000000);
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{
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INT m;
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for (m = mb, W = W + (mb * 4); m < me; m = m + 1, ri = ri + ms, ii = ii + ms, W = W + 4, MAKE_VOLATILE_STRIDE(6, rs)) {
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E T1, Ti, T6, Te, Tb, Tf, Tc, Th;
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T1 = ri[0];
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Ti = ii[0];
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{
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E T3, T5, T2, T4;
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T3 = ri[WS(rs, 1)];
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T5 = ii[WS(rs, 1)];
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T2 = W[0];
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T4 = W[1];
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T6 = FMA(T2, T3, T4 * T5);
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Te = FNMS(T4, T3, T2 * T5);
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}
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{
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E T8, Ta, T7, T9;
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T8 = ri[WS(rs, 2)];
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Ta = ii[WS(rs, 2)];
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T7 = W[2];
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T9 = W[3];
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Tb = FMA(T7, T8, T9 * Ta);
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Tf = FNMS(T9, T8, T7 * Ta);
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}
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Tc = T6 + Tb;
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Th = Te + Tf;
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ri[0] = T1 + Tc;
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ii[0] = Th + Ti;
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{
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E Td, Tg, Tj, Tk;
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Td = FNMS(KP500000000, Tc, T1);
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Tg = KP866025403 * (Te - Tf);
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ri[WS(rs, 2)] = Td - Tg;
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ri[WS(rs, 1)] = Td + Tg;
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Tj = KP866025403 * (Tb - T6);
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Tk = FNMS(KP500000000, Th, Ti);
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ii[WS(rs, 1)] = Tj + Tk;
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ii[WS(rs, 2)] = Tk - Tj;
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}
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}
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}
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}
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static const tw_instr twinstr[] = {
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{ TW_FULL, 0, 3 },
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{ TW_NEXT, 1, 0 }
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};
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static const ct_desc desc = { 3, "t1_3", twinstr, &GENUS, { 10, 6, 6, 0 }, 0, 0, 0 };
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void X(codelet_t1_3) (planner *p) {
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X(kdft_dit_register) (p, t1_3, &desc);
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}
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#endif
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