iup-stack/fftw/rdft/scalar/r2cb/hc2cbdft2_4.c

219 lines
5.5 KiB
C

/*
* 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 10:47:14 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 -sign 1 -n 4 -dif -name hc2cbdft2_4 -include rdft/scalar/hc2cb.h */
/*
* This function contains 30 FP additions, 12 FP multiplications,
* (or, 24 additions, 6 multiplications, 6 fused multiply/add),
* 23 stack variables, 0 constants, and 16 memory accesses
*/
#include "rdft/scalar/hc2cb.h"
static void hc2cbdft2_4(R *Rp, R *Ip, R *Rm, R *Im, const R *W, stride rs, INT mb, INT me, INT ms)
{
{
INT m;
for (m = mb, W = W + ((mb - 1) * 6); m < me; m = m + 1, Rp = Rp + ms, Ip = Ip + ms, Rm = Rm - ms, Im = Im - ms, W = W + 6, MAKE_VOLATILE_STRIDE(16, rs)) {
E T3, Tm, T6, Tn, Td, Tk, TB, Ty, Tv, Ts;
{
E Tg, Tc, T9, Tj;
{
E T1, T2, Ta, Tb;
T1 = Rp[0];
T2 = Rm[WS(rs, 1)];
T3 = T1 + T2;
Tg = T1 - T2;
Ta = Ip[0];
Tb = Im[WS(rs, 1)];
Tc = Ta + Tb;
Tm = Ta - Tb;
}
{
E T4, T5, Th, Ti;
T4 = Rp[WS(rs, 1)];
T5 = Rm[0];
T6 = T4 + T5;
T9 = T4 - T5;
Th = Ip[WS(rs, 1)];
Ti = Im[0];
Tj = Th + Ti;
Tn = Th - Ti;
}
Td = T9 + Tc;
Tk = Tg - Tj;
TB = Tg + Tj;
Ty = Tc - T9;
Tv = Tm - Tn;
Ts = T3 - T6;
}
{
E T7, To, Te, Tp, T8, Tl, Tq, Tf;
T7 = T3 + T6;
To = Tm + Tn;
T8 = W[0];
Te = T8 * Td;
Tp = T8 * Tk;
Tf = W[1];
Tl = FMA(Tf, Tk, Te);
Tq = FNMS(Tf, Td, Tp);
Rp[0] = T7 - Tl;
Ip[0] = To + Tq;
Rm[0] = T7 + Tl;
Im[0] = Tq - To;
}
{
E Tr, Tt, Tu, TD, Tz, TF, Tx;
Tr = W[2];
Tt = Tr * Ts;
Tu = W[3];
TD = Tu * Ts;
Tx = W[4];
Tz = Tx * Ty;
TF = Tx * TB;
{
E Tw, TE, TC, TG, TA;
Tw = FNMS(Tu, Tv, Tt);
TE = FMA(Tr, Tv, TD);
TA = W[5];
TC = FMA(TA, TB, Tz);
TG = FNMS(TA, Ty, TF);
Rp[WS(rs, 1)] = Tw - TC;
Ip[WS(rs, 1)] = TE + TG;
Rm[WS(rs, 1)] = Tw + TC;
Im[WS(rs, 1)] = TG - TE;
}
}
}
}
}
static const tw_instr twinstr[] = {
{ TW_FULL, 1, 4 },
{ TW_NEXT, 1, 0 }
};
static const hc2c_desc desc = { 4, "hc2cbdft2_4", twinstr, &GENUS, { 24, 6, 6, 0 } };
void X(codelet_hc2cbdft2_4) (planner *p) {
X(khc2c_register) (p, hc2cbdft2_4, &desc, HC2C_VIA_DFT);
}
#else
/* Generated by: ../../../genfft/gen_hc2cdft.native -compact -variables 4 -pipeline-latency 4 -sign 1 -n 4 -dif -name hc2cbdft2_4 -include rdft/scalar/hc2cb.h */
/*
* This function contains 30 FP additions, 12 FP multiplications,
* (or, 24 additions, 6 multiplications, 6 fused multiply/add),
* 19 stack variables, 0 constants, and 16 memory accesses
*/
#include "rdft/scalar/hc2cb.h"
static void hc2cbdft2_4(R *Rp, R *Ip, R *Rm, R *Im, const R *W, stride rs, INT mb, INT me, INT ms)
{
{
INT m;
for (m = mb, W = W + ((mb - 1) * 6); m < me; m = m + 1, Rp = Rp + ms, Ip = Ip + ms, Rm = Rm - ms, Im = Im - ms, W = W + 6, MAKE_VOLATILE_STRIDE(16, rs)) {
E T3, Tl, T6, Tm, Td, Tj, Tx, Tv, Ts, Tq;
{
E Tf, Tc, T9, Ti;
{
E T1, T2, Ta, Tb;
T1 = Rp[0];
T2 = Rm[WS(rs, 1)];
T3 = T1 + T2;
Tf = T1 - T2;
Ta = Ip[0];
Tb = Im[WS(rs, 1)];
Tc = Ta + Tb;
Tl = Ta - Tb;
}
{
E T4, T5, Tg, Th;
T4 = Rp[WS(rs, 1)];
T5 = Rm[0];
T6 = T4 + T5;
T9 = T4 - T5;
Tg = Ip[WS(rs, 1)];
Th = Im[0];
Ti = Tg + Th;
Tm = Tg - Th;
}
Td = T9 + Tc;
Tj = Tf - Ti;
Tx = Tf + Ti;
Tv = Tc - T9;
Ts = Tl - Tm;
Tq = T3 - T6;
}
{
E T7, Tn, Tk, To, T8, Te;
T7 = T3 + T6;
Tn = Tl + Tm;
T8 = W[0];
Te = W[1];
Tk = FMA(T8, Td, Te * Tj);
To = FNMS(Te, Td, T8 * Tj);
Rp[0] = T7 - Tk;
Ip[0] = Tn + To;
Rm[0] = T7 + Tk;
Im[0] = To - Tn;
}
{
E Tt, Tz, Ty, TA;
{
E Tp, Tr, Tu, Tw;
Tp = W[2];
Tr = W[3];
Tt = FNMS(Tr, Ts, Tp * Tq);
Tz = FMA(Tr, Tq, Tp * Ts);
Tu = W[4];
Tw = W[5];
Ty = FMA(Tu, Tv, Tw * Tx);
TA = FNMS(Tw, Tv, Tu * Tx);
}
Rp[WS(rs, 1)] = Tt - Ty;
Ip[WS(rs, 1)] = Tz + TA;
Rm[WS(rs, 1)] = Tt + Ty;
Im[WS(rs, 1)] = TA - Tz;
}
}
}
}
static const tw_instr twinstr[] = {
{ TW_FULL, 1, 4 },
{ TW_NEXT, 1, 0 }
};
static const hc2c_desc desc = { 4, "hc2cbdft2_4", twinstr, &GENUS, { 24, 6, 6, 0 } };
void X(codelet_hc2cbdft2_4) (planner *p) {
X(khc2c_register) (p, hc2cbdft2_4, &desc, HC2C_VIA_DFT);
}
#endif