furnace/extern/fftw/rdft/scalar/r2cb/r2cb_2.c

87 lines
2.9 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 10:46:47 EDT 2021 */
#include "rdft/codelet-rdft.h"
#if defined(ARCH_PREFERS_FMA) || defined(ISA_EXTENSION_PREFERS_FMA)
/* Generated by: ../../../genfft/gen_r2cb.native -fma -compact -variables 4 -pipeline-latency 4 -sign 1 -n 2 -name r2cb_2 -include rdft/scalar/r2cb.h */
/*
* This function contains 2 FP additions, 0 FP multiplications,
* (or, 2 additions, 0 multiplications, 0 fused multiply/add),
* 3 stack variables, 0 constants, and 4 memory accesses
*/
#include "rdft/scalar/r2cb.h"
static void r2cb_2(R *R0, R *R1, R *Cr, R *Ci, stride rs, stride csr, stride csi, INT v, INT ivs, INT ovs)
{
{
INT i;
for (i = v; i > 0; i = i - 1, R0 = R0 + ovs, R1 = R1 + ovs, Cr = Cr + ivs, Ci = Ci + ivs, MAKE_VOLATILE_STRIDE(8, rs), MAKE_VOLATILE_STRIDE(8, csr), MAKE_VOLATILE_STRIDE(8, csi)) {
E T1, T2;
T1 = Cr[0];
T2 = Cr[WS(csr, 1)];
R1[0] = T1 - T2;
R0[0] = T1 + T2;
}
}
}
static const kr2c_desc desc = { 2, "r2cb_2", { 2, 0, 0, 0 }, &GENUS };
void X(codelet_r2cb_2) (planner *p) { X(kr2c_register) (p, r2cb_2, &desc);
}
#else
/* Generated by: ../../../genfft/gen_r2cb.native -compact -variables 4 -pipeline-latency 4 -sign 1 -n 2 -name r2cb_2 -include rdft/scalar/r2cb.h */
/*
* This function contains 2 FP additions, 0 FP multiplications,
* (or, 2 additions, 0 multiplications, 0 fused multiply/add),
* 3 stack variables, 0 constants, and 4 memory accesses
*/
#include "rdft/scalar/r2cb.h"
static void r2cb_2(R *R0, R *R1, R *Cr, R *Ci, stride rs, stride csr, stride csi, INT v, INT ivs, INT ovs)
{
{
INT i;
for (i = v; i > 0; i = i - 1, R0 = R0 + ovs, R1 = R1 + ovs, Cr = Cr + ivs, Ci = Ci + ivs, MAKE_VOLATILE_STRIDE(8, rs), MAKE_VOLATILE_STRIDE(8, csr), MAKE_VOLATILE_STRIDE(8, csi)) {
E T1, T2;
T1 = Cr[0];
T2 = Cr[WS(csr, 1)];
R1[0] = T1 - T2;
R0[0] = T1 + T2;
}
}
}
static const kr2c_desc desc = { 2, "r2cb_2", { 2, 0, 0, 0 }, &GENUS };
void X(codelet_r2cb_2) (planner *p) { X(kr2c_register) (p, r2cb_2, &desc);
}
#endif