comparison src/fftw-3.3.8/rdft/scalar/r2cf/r2cfII_2.c @ 167:bd3cc4d1df30

Add FFTW 3.3.8 source, and a Linux build
author Chris Cannam <cannam@all-day-breakfast.com>
date Tue, 19 Nov 2019 14:52:55 +0000
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166:cbd6d7e562c7 167:bd3cc4d1df30
1 /*
2 * Copyright (c) 2003, 2007-14 Matteo Frigo
3 * Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18 *
19 */
20
21 /* This file was automatically generated --- DO NOT EDIT */
22 /* Generated on Thu May 24 08:06:42 EDT 2018 */
23
24 #include "rdft/codelet-rdft.h"
25
26 #if defined(ARCH_PREFERS_FMA) || defined(ISA_EXTENSION_PREFERS_FMA)
27
28 /* Generated by: ../../../genfft/gen_r2cf.native -fma -compact -variables 4 -pipeline-latency 4 -n 2 -name r2cfII_2 -dft-II -include rdft/scalar/r2cfII.h */
29
30 /*
31 * This function contains 0 FP additions, 0 FP multiplications,
32 * (or, 0 additions, 0 multiplications, 0 fused multiply/add),
33 * 3 stack variables, 0 constants, and 4 memory accesses
34 */
35 #include "rdft/scalar/r2cfII.h"
36
37 static void r2cfII_2(R *R0, R *R1, R *Cr, R *Ci, stride rs, stride csr, stride csi, INT v, INT ivs, INT ovs)
38 {
39 {
40 INT i;
41 for (i = v; i > 0; i = i - 1, R0 = R0 + ivs, R1 = R1 + ivs, Cr = Cr + ovs, Ci = Ci + ovs, MAKE_VOLATILE_STRIDE(8, rs), MAKE_VOLATILE_STRIDE(8, csr), MAKE_VOLATILE_STRIDE(8, csi)) {
42 E T1, T2;
43 T1 = R0[0];
44 T2 = R1[0];
45 Cr[0] = T1;
46 Ci[0] = -T2;
47 }
48 }
49 }
50
51 static const kr2c_desc desc = { 2, "r2cfII_2", {0, 0, 0, 0}, &GENUS };
52
53 void X(codelet_r2cfII_2) (planner *p) {
54 X(kr2c_register) (p, r2cfII_2, &desc);
55 }
56
57 #else
58
59 /* Generated by: ../../../genfft/gen_r2cf.native -compact -variables 4 -pipeline-latency 4 -n 2 -name r2cfII_2 -dft-II -include rdft/scalar/r2cfII.h */
60
61 /*
62 * This function contains 0 FP additions, 0 FP multiplications,
63 * (or, 0 additions, 0 multiplications, 0 fused multiply/add),
64 * 3 stack variables, 0 constants, and 4 memory accesses
65 */
66 #include "rdft/scalar/r2cfII.h"
67
68 static void r2cfII_2(R *R0, R *R1, R *Cr, R *Ci, stride rs, stride csr, stride csi, INT v, INT ivs, INT ovs)
69 {
70 {
71 INT i;
72 for (i = v; i > 0; i = i - 1, R0 = R0 + ivs, R1 = R1 + ivs, Cr = Cr + ovs, Ci = Ci + ovs, MAKE_VOLATILE_STRIDE(8, rs), MAKE_VOLATILE_STRIDE(8, csr), MAKE_VOLATILE_STRIDE(8, csi)) {
73 E T1, T2;
74 T1 = R0[0];
75 T2 = R1[0];
76 Cr[0] = T1;
77 Ci[0] = -T2;
78 }
79 }
80 }
81
82 static const kr2c_desc desc = { 2, "r2cfII_2", {0, 0, 0, 0}, &GENUS };
83
84 void X(codelet_r2cfII_2) (planner *p) {
85 X(kr2c_register) (p, r2cfII_2, &desc);
86 }
87
88 #endif