mirror of
https://github.com/tildearrow/furnace.git
synced 2024-11-08 22:05:05 +00:00
391 lines
9.9 KiB
C
391 lines
9.9 KiB
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 10:44:32 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 -twiddle-log3 -precompute-twiddles -n 8 -name t2_8 -include dft/scalar/t.h */
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/*
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* This function contains 74 FP additions, 50 FP multiplications,
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* (or, 44 additions, 20 multiplications, 30 fused multiply/add),
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* 48 stack variables, 1 constants, and 32 memory accesses
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*/
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#include "dft/scalar/t.h"
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static void t2_8(R *ri, R *ii, const R *W, stride rs, INT mb, INT me, INT ms)
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{
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DK(KP707106781, +0.707106781186547524400844362104849039284835938);
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{
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INT m;
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for (m = mb, W = W + (mb * 6); m < me; m = m + 1, ri = ri + ms, ii = ii + ms, W = W + 6, MAKE_VOLATILE_STRIDE(16, rs)) {
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E T2, T3, Tl, Tn, T5, T6, Tf, T7, Ts, Tb, To, Ti, TC, TG;
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{
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E T4, Tm, Tr, Ta, TB, TF;
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T2 = W[0];
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T3 = W[2];
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T4 = T2 * T3;
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Tl = W[4];
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Tm = T2 * Tl;
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Tn = W[5];
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Tr = T2 * Tn;
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T5 = W[1];
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T6 = W[3];
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Ta = T2 * T6;
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Tf = FMA(T5, T6, T4);
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T7 = FNMS(T5, T6, T4);
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Ts = FNMS(T5, Tl, Tr);
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Tb = FMA(T5, T3, Ta);
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To = FMA(T5, Tn, Tm);
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TB = Tf * Tl;
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TF = Tf * Tn;
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Ti = FNMS(T5, T3, Ta);
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TC = FMA(Ti, Tn, TB);
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TG = FNMS(Ti, Tl, TF);
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}
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{
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E T1, T1s, Td, T1r, Tu, TY, Tk, TW, TN, TR, T18, T1a, T1c, T1d, TA;
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E TI, T11, T13, T15, T16;
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T1 = ri[0];
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T1s = ii[0];
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{
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E T8, T9, Tc, T1q;
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T8 = ri[WS(rs, 4)];
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T9 = T7 * T8;
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Tc = ii[WS(rs, 4)];
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T1q = T7 * Tc;
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Td = FMA(Tb, Tc, T9);
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T1r = FNMS(Tb, T8, T1q);
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}
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{
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E Tp, Tq, Tt, TX;
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Tp = ri[WS(rs, 6)];
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Tq = To * Tp;
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Tt = ii[WS(rs, 6)];
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TX = To * Tt;
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Tu = FMA(Ts, Tt, Tq);
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TY = FNMS(Ts, Tp, TX);
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}
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{
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E Tg, Th, Tj, TV;
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Tg = ri[WS(rs, 2)];
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Th = Tf * Tg;
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Tj = ii[WS(rs, 2)];
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TV = Tf * Tj;
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Tk = FMA(Ti, Tj, Th);
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TW = FNMS(Ti, Tg, TV);
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}
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{
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E TK, TL, TM, T19, TO, TP, TQ, T1b;
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TK = ri[WS(rs, 7)];
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TL = Tl * TK;
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TM = ii[WS(rs, 7)];
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T19 = Tl * TM;
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TO = ri[WS(rs, 3)];
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TP = T3 * TO;
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TQ = ii[WS(rs, 3)];
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T1b = T3 * TQ;
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TN = FMA(Tn, TM, TL);
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TR = FMA(T6, TQ, TP);
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T18 = TN - TR;
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T1a = FNMS(Tn, TK, T19);
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T1c = FNMS(T6, TO, T1b);
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T1d = T1a - T1c;
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}
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{
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E Tx, Ty, Tz, T12, TD, TE, TH, T14;
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Tx = ri[WS(rs, 1)];
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Ty = T2 * Tx;
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Tz = ii[WS(rs, 1)];
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T12 = T2 * Tz;
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TD = ri[WS(rs, 5)];
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TE = TC * TD;
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TH = ii[WS(rs, 5)];
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T14 = TC * TH;
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TA = FMA(T5, Tz, Ty);
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TI = FMA(TG, TH, TE);
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T11 = TA - TI;
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T13 = FNMS(T5, Tx, T12);
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T15 = FNMS(TG, TD, T14);
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T16 = T13 - T15;
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}
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{
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E T10, T1g, T1z, T1B, T1f, T1C, T1j, T1A;
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{
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E TU, TZ, T1x, T1y;
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TU = T1 - Td;
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TZ = TW - TY;
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T10 = TU + TZ;
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T1g = TU - TZ;
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T1x = T1s - T1r;
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T1y = Tk - Tu;
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T1z = T1x - T1y;
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T1B = T1y + T1x;
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}
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{
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E T17, T1e, T1h, T1i;
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T17 = T11 + T16;
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T1e = T18 - T1d;
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T1f = T17 + T1e;
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T1C = T1e - T17;
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T1h = T16 - T11;
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T1i = T18 + T1d;
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T1j = T1h - T1i;
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T1A = T1h + T1i;
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}
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ri[WS(rs, 5)] = FNMS(KP707106781, T1f, T10);
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ii[WS(rs, 5)] = FNMS(KP707106781, T1A, T1z);
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ri[WS(rs, 1)] = FMA(KP707106781, T1f, T10);
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ii[WS(rs, 1)] = FMA(KP707106781, T1A, T1z);
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ri[WS(rs, 7)] = FNMS(KP707106781, T1j, T1g);
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ii[WS(rs, 7)] = FNMS(KP707106781, T1C, T1B);
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ri[WS(rs, 3)] = FMA(KP707106781, T1j, T1g);
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ii[WS(rs, 3)] = FMA(KP707106781, T1C, T1B);
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}
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{
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E Tw, T1k, T1u, T1w, TT, T1v, T1n, T1o;
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{
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E Te, Tv, T1p, T1t;
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Te = T1 + Td;
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Tv = Tk + Tu;
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Tw = Te + Tv;
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T1k = Te - Tv;
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T1p = TW + TY;
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T1t = T1r + T1s;
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T1u = T1p + T1t;
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T1w = T1t - T1p;
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}
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{
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E TJ, TS, T1l, T1m;
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TJ = TA + TI;
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TS = TN + TR;
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TT = TJ + TS;
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T1v = TS - TJ;
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T1l = T13 + T15;
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T1m = T1a + T1c;
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T1n = T1l - T1m;
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T1o = T1l + T1m;
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}
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ri[WS(rs, 4)] = Tw - TT;
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ii[WS(rs, 4)] = T1u - T1o;
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ri[0] = Tw + TT;
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ii[0] = T1o + T1u;
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ri[WS(rs, 6)] = T1k - T1n;
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ii[WS(rs, 6)] = T1w - T1v;
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ri[WS(rs, 2)] = T1k + T1n;
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ii[WS(rs, 2)] = T1v + T1w;
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}
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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_CEXP, 0, 1 },
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{ TW_CEXP, 0, 3 },
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{ TW_CEXP, 0, 7 },
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{ TW_NEXT, 1, 0 }
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};
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static const ct_desc desc = { 8, "t2_8", twinstr, &GENUS, { 44, 20, 30, 0 }, 0, 0, 0 };
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void X(codelet_t2_8) (planner *p) {
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X(kdft_dit_register) (p, t2_8, &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 -twiddle-log3 -precompute-twiddles -n 8 -name t2_8 -include dft/scalar/t.h */
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/*
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* This function contains 74 FP additions, 44 FP multiplications,
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* (or, 56 additions, 26 multiplications, 18 fused multiply/add),
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* 42 stack variables, 1 constants, and 32 memory accesses
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*/
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#include "dft/scalar/t.h"
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static void t2_8(R *ri, R *ii, const R *W, stride rs, INT mb, INT me, INT ms)
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{
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DK(KP707106781, +0.707106781186547524400844362104849039284835938);
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{
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INT m;
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for (m = mb, W = W + (mb * 6); m < me; m = m + 1, ri = ri + ms, ii = ii + ms, W = W + 6, MAKE_VOLATILE_STRIDE(16, rs)) {
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E T2, T5, T3, T6, T8, Tc, Tg, Ti, Tl, Tm, Tn, Tz, Tp, Tx;
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{
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E T4, Tb, T7, Ta;
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T2 = W[0];
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T5 = W[1];
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T3 = W[2];
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T6 = W[3];
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T4 = T2 * T3;
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Tb = T5 * T3;
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T7 = T5 * T6;
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Ta = T2 * T6;
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T8 = T4 - T7;
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Tc = Ta + Tb;
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Tg = T4 + T7;
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Ti = Ta - Tb;
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Tl = W[4];
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Tm = W[5];
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Tn = FMA(T2, Tl, T5 * Tm);
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Tz = FNMS(Ti, Tl, Tg * Tm);
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Tp = FNMS(T5, Tl, T2 * Tm);
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Tx = FMA(Tg, Tl, Ti * Tm);
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}
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{
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E Tf, T1i, TL, T1d, TJ, T17, TV, TY, Ts, T1j, TO, T1a, TC, T16, TQ;
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E TT;
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{
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E T1, T1c, Te, T1b, T9, Td;
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T1 = ri[0];
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T1c = ii[0];
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T9 = ri[WS(rs, 4)];
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Td = ii[WS(rs, 4)];
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Te = FMA(T8, T9, Tc * Td);
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T1b = FNMS(Tc, T9, T8 * Td);
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Tf = T1 + Te;
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T1i = T1c - T1b;
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TL = T1 - Te;
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T1d = T1b + T1c;
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}
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{
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E TF, TW, TI, TX;
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{
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E TD, TE, TG, TH;
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TD = ri[WS(rs, 7)];
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TE = ii[WS(rs, 7)];
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TF = FMA(Tl, TD, Tm * TE);
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TW = FNMS(Tm, TD, Tl * TE);
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TG = ri[WS(rs, 3)];
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TH = ii[WS(rs, 3)];
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TI = FMA(T3, TG, T6 * TH);
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TX = FNMS(T6, TG, T3 * TH);
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}
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TJ = TF + TI;
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T17 = TW + TX;
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TV = TF - TI;
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TY = TW - TX;
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}
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{
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E Tk, TM, Tr, TN;
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{
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E Th, Tj, To, Tq;
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Th = ri[WS(rs, 2)];
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Tj = ii[WS(rs, 2)];
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Tk = FMA(Tg, Th, Ti * Tj);
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TM = FNMS(Ti, Th, Tg * Tj);
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To = ri[WS(rs, 6)];
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Tq = ii[WS(rs, 6)];
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Tr = FMA(Tn, To, Tp * Tq);
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TN = FNMS(Tp, To, Tn * Tq);
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}
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Ts = Tk + Tr;
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T1j = Tk - Tr;
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TO = TM - TN;
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T1a = TM + TN;
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}
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{
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E Tw, TR, TB, TS;
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{
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E Tu, Tv, Ty, TA;
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Tu = ri[WS(rs, 1)];
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Tv = ii[WS(rs, 1)];
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Tw = FMA(T2, Tu, T5 * Tv);
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TR = FNMS(T5, Tu, T2 * Tv);
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Ty = ri[WS(rs, 5)];
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TA = ii[WS(rs, 5)];
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TB = FMA(Tx, Ty, Tz * TA);
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TS = FNMS(Tz, Ty, Tx * TA);
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}
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TC = Tw + TB;
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T16 = TR + TS;
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TQ = Tw - TB;
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TT = TR - TS;
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}
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{
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E Tt, TK, T1f, T1g;
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Tt = Tf + Ts;
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TK = TC + TJ;
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ri[WS(rs, 4)] = Tt - TK;
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ri[0] = Tt + TK;
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{
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E T19, T1e, T15, T18;
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T19 = T16 + T17;
|
||
|
|
T1e = T1a + T1d;
|
||
|
|
ii[0] = T19 + T1e;
|
||
|
|
ii[WS(rs, 4)] = T1e - T19;
|
||
|
|
T15 = Tf - Ts;
|
||
|
|
T18 = T16 - T17;
|
||
|
|
ri[WS(rs, 6)] = T15 - T18;
|
||
|
|
ri[WS(rs, 2)] = T15 + T18;
|
||
|
|
}
|
||
|
|
T1f = TJ - TC;
|
||
|
|
T1g = T1d - T1a;
|
||
|
|
ii[WS(rs, 2)] = T1f + T1g;
|
||
|
|
ii[WS(rs, 6)] = T1g - T1f;
|
||
|
|
{
|
||
|
|
E T11, T1k, T14, T1h, T12, T13;
|
||
|
|
T11 = TL - TO;
|
||
|
|
T1k = T1i - T1j;
|
||
|
|
T12 = TT - TQ;
|
||
|
|
T13 = TV + TY;
|
||
|
|
T14 = KP707106781 * (T12 - T13);
|
||
|
|
T1h = KP707106781 * (T12 + T13);
|
||
|
|
ri[WS(rs, 7)] = T11 - T14;
|
||
|
|
ii[WS(rs, 5)] = T1k - T1h;
|
||
|
|
ri[WS(rs, 3)] = T11 + T14;
|
||
|
|
ii[WS(rs, 1)] = T1h + T1k;
|
||
|
|
}
|
||
|
|
{
|
||
|
|
E TP, T1m, T10, T1l, TU, TZ;
|
||
|
|
TP = TL + TO;
|
||
|
|
T1m = T1j + T1i;
|
||
|
|
TU = TQ + TT;
|
||
|
|
TZ = TV - TY;
|
||
|
|
T10 = KP707106781 * (TU + TZ);
|
||
|
|
T1l = KP707106781 * (TZ - TU);
|
||
|
|
ri[WS(rs, 5)] = TP - T10;
|
||
|
|
ii[WS(rs, 7)] = T1m - T1l;
|
||
|
|
ri[WS(rs, 1)] = TP + T10;
|
||
|
|
ii[WS(rs, 3)] = T1l + T1m;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static const tw_instr twinstr[] = {
|
||
|
|
{ TW_CEXP, 0, 1 },
|
||
|
|
{ TW_CEXP, 0, 3 },
|
||
|
|
{ TW_CEXP, 0, 7 },
|
||
|
|
{ TW_NEXT, 1, 0 }
|
||
|
|
};
|
||
|
|
|
||
|
|
static const ct_desc desc = { 8, "t2_8", twinstr, &GENUS, { 56, 26, 18, 0 }, 0, 0, 0 };
|
||
|
|
|
||
|
|
void X(codelet_t2_8) (planner *p) {
|
||
|
|
X(kdft_dit_register) (p, t2_8, &desc);
|
||
|
|
}
|
||
|
|
#endif
|