furnace/extern/fftw/rdft/scalar/r2cf/r2cf_8.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 10:46:10 EDT 2021 */
#include "rdft/codelet-rdft.h"
#if defined(ARCH_PREFERS_FMA) || defined(ISA_EXTENSION_PREFERS_FMA)
/* Generated by: ../../../genfft/gen_r2cf.native -fma -compact -variables 4 -pipeline-latency 4 -n 8 -name r2cf_8 -include rdft/scalar/r2cf.h */
/*
* This function contains 20 FP additions, 4 FP multiplications,
* (or, 16 additions, 0 multiplications, 4 fused multiply/add),
* 14 stack variables, 1 constants, and 16 memory accesses
*/
#include "rdft/scalar/r2cf.h"
static void r2cf_8(R *R0, R *R1, R *Cr, R *Ci, stride rs, stride csr, stride csi, INT v, INT ivs, INT ovs)
{
DK(KP707106781, +0.707106781186547524400844362104849039284835938);
{
INT i;
for (i = v; i > 0; i = i - 1, R0 = R0 + ivs, R1 = R1 + ivs, Cr = Cr + ovs, Ci = Ci + ovs, MAKE_VOLATILE_STRIDE(32, rs), MAKE_VOLATILE_STRIDE(32, csr), MAKE_VOLATILE_STRIDE(32, csi)) {
E T3, T7, Td, Tj, T6, Tf, Ta, Ti;
{
E T1, T2, Tb, Tc;
T1 = R0[0];
T2 = R0[WS(rs, 2)];
T3 = T1 + T2;
T7 = T1 - T2;
Tb = R1[WS(rs, 3)];
Tc = R1[WS(rs, 1)];
Td = Tb - Tc;
Tj = Tb + Tc;
}
{
E T4, T5, T8, T9;
T4 = R0[WS(rs, 1)];
T5 = R0[WS(rs, 3)];
T6 = T4 + T5;
Tf = T4 - T5;
T8 = R1[0];
T9 = R1[WS(rs, 2)];
Ta = T8 - T9;
Ti = T8 + T9;
}
Cr[WS(csr, 2)] = T3 - T6;
Ci[WS(csi, 2)] = Tj - Ti;
{
E Te, Tg, Th, Tk;
Te = Ta + Td;
Cr[WS(csr, 3)] = FNMS(KP707106781, Te, T7);
Cr[WS(csr, 1)] = FMA(KP707106781, Te, T7);
Tg = Td - Ta;
Ci[WS(csi, 1)] = FMS(KP707106781, Tg, Tf);
Ci[WS(csi, 3)] = FMA(KP707106781, Tg, Tf);
Th = T3 + T6;
Tk = Ti + Tj;
Cr[WS(csr, 4)] = Th - Tk;
Cr[0] = Th + Tk;
}
}
}
}
static const kr2c_desc desc = { 8, "r2cf_8", { 16, 0, 4, 0 }, &GENUS };
void X(codelet_r2cf_8) (planner *p) { X(kr2c_register) (p, r2cf_8, &desc);
}
#else
/* Generated by: ../../../genfft/gen_r2cf.native -compact -variables 4 -pipeline-latency 4 -n 8 -name r2cf_8 -include rdft/scalar/r2cf.h */
/*
* This function contains 20 FP additions, 2 FP multiplications,
* (or, 20 additions, 2 multiplications, 0 fused multiply/add),
* 14 stack variables, 1 constants, and 16 memory accesses
*/
#include "rdft/scalar/r2cf.h"
static void r2cf_8(R *R0, R *R1, R *Cr, R *Ci, stride rs, stride csr, stride csi, INT v, INT ivs, INT ovs)
{
DK(KP707106781, +0.707106781186547524400844362104849039284835938);
{
INT i;
for (i = v; i > 0; i = i - 1, R0 = R0 + ivs, R1 = R1 + ivs, Cr = Cr + ovs, Ci = Ci + ovs, MAKE_VOLATILE_STRIDE(32, rs), MAKE_VOLATILE_STRIDE(32, csr), MAKE_VOLATILE_STRIDE(32, csi)) {
E T3, T7, Td, Tj, T6, Tg, Ta, Ti;
{
E T1, T2, Tb, Tc;
T1 = R0[0];
T2 = R0[WS(rs, 2)];
T3 = T1 + T2;
T7 = T1 - T2;
Tb = R1[WS(rs, 3)];
Tc = R1[WS(rs, 1)];
Td = Tb - Tc;
Tj = Tb + Tc;
}
{
E T4, T5, T8, T9;
T4 = R0[WS(rs, 1)];
T5 = R0[WS(rs, 3)];
T6 = T4 + T5;
Tg = T4 - T5;
T8 = R1[0];
T9 = R1[WS(rs, 2)];
Ta = T8 - T9;
Ti = T8 + T9;
}
Cr[WS(csr, 2)] = T3 - T6;
Ci[WS(csi, 2)] = Tj - Ti;
{
E Te, Tf, Th, Tk;
Te = KP707106781 * (Ta + Td);
Cr[WS(csr, 3)] = T7 - Te;
Cr[WS(csr, 1)] = T7 + Te;
Tf = KP707106781 * (Td - Ta);
Ci[WS(csi, 1)] = Tf - Tg;
Ci[WS(csi, 3)] = Tg + Tf;
Th = T3 + T6;
Tk = Ti + Tj;
Cr[WS(csr, 4)] = Th - Tk;
Cr[0] = Th + Tk;
}
}
}
}
static const kr2c_desc desc = { 8, "r2cf_8", { 20, 2, 0, 0 }, &GENUS };
void X(codelet_r2cf_8) (planner *p) { X(kr2c_register) (p, r2cf_8, &desc);
}
#endif