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furnace/extern/fftw/rdft/scalar/r2cf/hc2cfdft2_4.c

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/*
* Copyright (c) 2003, 2007-14 Matteo Frigo
* Copyright (c) 2003, 2007-14 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 Tue Sep 14 10:46:38 EDT 2021 */
#include "rdft/codelet-rdft.h"
#if defined(ARCH_PREFERS_FMA) || defined(ISA_EXTENSION_PREFERS_FMA)
/* Generated by: ../../../genfft/gen_hc2cdft.native -fma -compact -variables 4 -pipeline-latency 4 -twiddle-log3 -precompute-twiddles -n 4 -dit -name hc2cfdft2_4 -include rdft/scalar/hc2cf.h */
/*
* This function contains 32 FP additions, 24 FP multiplications,
* (or, 24 additions, 16 multiplications, 8 fused multiply/add),
* 37 stack variables, 1 constants, and 16 memory accesses
*/
#include "rdft/scalar/hc2cf.h"
static void hc2cfdft2_4(R *Rp, R *Ip, R *Rm, R *Im, const R *W, stride rs, INT mb, INT me, INT ms)
{
DK(KP500000000, +0.500000000000000000000000000000000000000000000);
{
INT m;
for (m = mb, W = W + ((mb - 1) * 4); m < me; m = m + 1, Rp = Rp + ms, Ip = Ip + ms, Rm = Rm - ms, Im = Im - ms, W = W + 4, MAKE_VOLATILE_STRIDE(16, rs)) {
E T1, T5, T2, T4, T6, Tc, T3, Tb;
T1 = W[0];
T5 = W[3];
T2 = W[2];
T3 = T1 * T2;
Tb = T1 * T5;
T4 = W[1];
T6 = FMA(T4, T5, T3);
Tc = FNMS(T4, T2, Tb);
{
E Tj, Tp, To, TE, Tw, T9, Tt, Ta, TC, Tf, Tr, Ts, Tx;
{
E Th, Ti, Tl, Tm, Tn;
Th = Ip[0];
Ti = Im[0];
Tj = Th - Ti;
Tp = Th + Ti;
Tl = Rm[0];
Tm = Rp[0];
Tn = Tl - Tm;
To = T1 * Tn;
TE = T4 * Tn;
Tw = Tm + Tl;
}
{
E T7, T8, Td, Te;
T7 = Ip[WS(rs, 1)];
T8 = Im[WS(rs, 1)];
T9 = T7 - T8;
Tt = T7 + T8;
Ta = T6 * T9;
TC = T2 * Tt;
Td = Rp[WS(rs, 1)];
Te = Rm[WS(rs, 1)];
Tf = Td + Te;
Tr = Td - Te;
Ts = T2 * Tr;
Tx = T6 * Tf;
}
{
E Tk, TB, Tz, TH, Tv, TA, TG, TI, Tg, Ty;
Tg = FNMS(Tc, Tf, Ta);
Tk = Tg + Tj;
TB = Tj - Tg;
Ty = FMA(Tc, T9, Tx);
Tz = Tw - Ty;
TH = Tw + Ty;
{
E Tq, Tu, TD, TF;
Tq = FNMS(T4, Tp, To);
Tu = FMA(T5, Tt, Ts);
Tv = Tq - Tu;
TA = Tu + Tq;
TD = FNMS(T5, Tr, TC);
TF = FMA(T1, Tp, TE);
TG = TD - TF;
TI = TD + TF;
}
Ip[0] = KP500000000 * (Tk + Tv);
Rp[0] = KP500000000 * (TH + TI);
Im[WS(rs, 1)] = KP500000000 * (Tv - Tk);
Rm[WS(rs, 1)] = KP500000000 * (TH - TI);
Rm[0] = KP500000000 * (Tz - TA);
Im[0] = KP500000000 * (TG - TB);
Rp[WS(rs, 1)] = KP500000000 * (Tz + TA);
Ip[WS(rs, 1)] = KP500000000 * (TB + TG);
}
}
}
}
}
static const tw_instr twinstr[] = {
{ TW_CEXP, 1, 1 },
{ TW_CEXP, 1, 3 },
{ TW_NEXT, 1, 0 }
};
static const hc2c_desc desc = { 4, "hc2cfdft2_4", twinstr, &GENUS, { 24, 16, 8, 0 } };
void X(codelet_hc2cfdft2_4) (planner *p) {
X(khc2c_register) (p, hc2cfdft2_4, &desc, HC2C_VIA_DFT);
}
#else
/* Generated by: ../../../genfft/gen_hc2cdft.native -compact -variables 4 -pipeline-latency 4 -twiddle-log3 -precompute-twiddles -n 4 -dit -name hc2cfdft2_4 -include rdft/scalar/hc2cf.h */
/*
* This function contains 32 FP additions, 24 FP multiplications,
* (or, 24 additions, 16 multiplications, 8 fused multiply/add),
* 24 stack variables, 1 constants, and 16 memory accesses
*/
#include "rdft/scalar/hc2cf.h"
static void hc2cfdft2_4(R *Rp, R *Ip, R *Rm, R *Im, const R *W, stride rs, INT mb, INT me, INT ms)
{
DK(KP500000000, +0.500000000000000000000000000000000000000000000);
{
INT m;
for (m = mb, W = W + ((mb - 1) * 4); m < me; m = m + 1, Rp = Rp + ms, Ip = Ip + ms, Rm = Rm - ms, Im = Im - ms, W = W + 4, MAKE_VOLATILE_STRIDE(16, rs)) {
E T1, T3, T2, T4, T5, T9;
T1 = W[0];
T3 = W[1];
T2 = W[2];
T4 = W[3];
T5 = FMA(T1, T2, T3 * T4);
T9 = FNMS(T3, T2, T1 * T4);
{
E Tg, Tr, Tm, Tx, Td, Tw, Tp, Ts;
{
E Te, Tf, Tl, Ti, Tj, Tk;
Te = Ip[0];
Tf = Im[0];
Tl = Te + Tf;
Ti = Rm[0];
Tj = Rp[0];
Tk = Ti - Tj;
Tg = Te - Tf;
Tr = Tj + Ti;
Tm = FNMS(T3, Tl, T1 * Tk);
Tx = FMA(T3, Tk, T1 * Tl);
}
{
E T8, To, Tc, Tn;
{
E T6, T7, Ta, Tb;
T6 = Ip[WS(rs, 1)];
T7 = Im[WS(rs, 1)];
T8 = T6 - T7;
To = T6 + T7;
Ta = Rp[WS(rs, 1)];
Tb = Rm[WS(rs, 1)];
Tc = Ta + Tb;
Tn = Ta - Tb;
}
Td = FNMS(T9, Tc, T5 * T8);
Tw = FNMS(T4, Tn, T2 * To);
Tp = FMA(T2, Tn, T4 * To);
Ts = FMA(T5, Tc, T9 * T8);
}
{
E Th, Tq, Tz, TA;
Th = Td + Tg;
Tq = Tm - Tp;
Ip[0] = KP500000000 * (Th + Tq);
Im[WS(rs, 1)] = KP500000000 * (Tq - Th);
Tz = Tr + Ts;
TA = Tw + Tx;
Rm[WS(rs, 1)] = KP500000000 * (Tz - TA);
Rp[0] = KP500000000 * (Tz + TA);
}
{
E Tt, Tu, Tv, Ty;
Tt = Tr - Ts;
Tu = Tp + Tm;
Rm[0] = KP500000000 * (Tt - Tu);
Rp[WS(rs, 1)] = KP500000000 * (Tt + Tu);
Tv = Tg - Td;
Ty = Tw - Tx;
Ip[WS(rs, 1)] = KP500000000 * (Tv + Ty);
Im[0] = KP500000000 * (Ty - Tv);
}
}
}
}
}
static const tw_instr twinstr[] = {
{ TW_CEXP, 1, 1 },
{ TW_CEXP, 1, 3 },
{ TW_NEXT, 1, 0 }
};
static const hc2c_desc desc = { 4, "hc2cfdft2_4", twinstr, &GENUS, { 24, 16, 8, 0 } };
void X(codelet_hc2cfdft2_4) (planner *p) {
X(khc2c_register) (p, hc2cfdft2_4, &desc, HC2C_VIA_DFT);
}
#endif
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