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comparison src/fftw-3.3.8/rdft/scalar/r2cf/r2cf_5.c @ 167:bd3cc4d1df30

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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 08:06:26 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 5 -name r2cf_5 -include rdft/scalar/r2cf.h */
29
30 /*
31 * This function contains 12 FP additions, 7 FP multiplications,
32 * (or, 7 additions, 2 multiplications, 5 fused multiply/add),
33 * 17 stack variables, 4 constants, and 10 memory accesses
34 */
35 #include "rdft/scalar/r2cf.h"
36
37 static void r2cf_5(R *R0, R *R1, R *Cr, R *Ci, stride rs, stride csr, stride csi, INT v, INT ivs, INT ovs)
38 {
39 DK(KP559016994, +0.559016994374947424102293417182819058860154590);
40 DK(KP250000000, +0.250000000000000000000000000000000000000000000);
41 DK(KP618033988, +0.618033988749894848204586834365638117720309180);
42 DK(KP951056516, +0.951056516295153572116439333379382143405698634);
43 {
44 INT i;
45 for (i = v; i > 0; i = i - 1, R0 = R0 + ivs, R1 = R1 + ivs, Cr = Cr + ovs, Ci = Ci + ovs, MAKE_VOLATILE_STRIDE(20, rs), MAKE_VOLATILE_STRIDE(20, csr), MAKE_VOLATILE_STRIDE(20, csi)) {
46 E T7, T8, T9, T3, Ta, T6, Tb, Tc;
47 T7 = R0[0];
48 {
49 E T1, T2, T4, T5;
50 T1 = R0[WS(rs, 2)];
51 T2 = R1[0];
52 T8 = T2 + T1;
53 T4 = R0[WS(rs, 1)];
54 T5 = R1[WS(rs, 1)];
55 T9 = T4 + T5;
56 T3 = T1 - T2;
57 Ta = T8 + T9;
58 T6 = T4 - T5;
59 }
60 Ci[WS(csi, 1)] = KP951056516 * (FNMS(KP618033988, T6, T3));
61 Cr[0] = T7 + Ta;
62 Ci[WS(csi, 2)] = KP951056516 * (FMA(KP618033988, T3, T6));
63 Tb = FNMS(KP250000000, Ta, T7);
64 Tc = T8 - T9;
65 Cr[WS(csr, 1)] = FMA(KP559016994, Tc, Tb);
66 Cr[WS(csr, 2)] = FNMS(KP559016994, Tc, Tb);
67 }
68 }
69 }
70
71 static const kr2c_desc desc = { 5, "r2cf_5", {7, 2, 5, 0}, &GENUS };
72
73 void X(codelet_r2cf_5) (planner *p) {
74 X(kr2c_register) (p, r2cf_5, &desc);
75 }
76
77 #else
78
79 /* Generated by: ../../../genfft/gen_r2cf.native -compact -variables 4 -pipeline-latency 4 -n 5 -name r2cf_5 -include rdft/scalar/r2cf.h */
80
81 /*
82 * This function contains 12 FP additions, 6 FP multiplications,
83 * (or, 9 additions, 3 multiplications, 3 fused multiply/add),
84 * 17 stack variables, 4 constants, and 10 memory accesses
85 */
86 #include "rdft/scalar/r2cf.h"
87
88 static void r2cf_5(R *R0, R *R1, R *Cr, R *Ci, stride rs, stride csr, stride csi, INT v, INT ivs, INT ovs)
89 {
90 DK(KP250000000, +0.250000000000000000000000000000000000000000000);
91 DK(KP559016994, +0.559016994374947424102293417182819058860154590);
92 DK(KP587785252, +0.587785252292473129168705954639072768597652438);
93 DK(KP951056516, +0.951056516295153572116439333379382143405698634);
94 {
95 INT i;
96 for (i = v; i > 0; i = i - 1, R0 = R0 + ivs, R1 = R1 + ivs, Cr = Cr + ovs, Ci = Ci + ovs, MAKE_VOLATILE_STRIDE(20, rs), MAKE_VOLATILE_STRIDE(20, csr), MAKE_VOLATILE_STRIDE(20, csi)) {
97 E Ta, T7, T8, T3, Tb, T6, T9, Tc;
98 Ta = R0[0];
99 {
100 E T1, T2, T4, T5;
101 T1 = R0[WS(rs, 2)];
102 T2 = R1[0];
103 T7 = T2 + T1;
104 T4 = R0[WS(rs, 1)];
105 T5 = R1[WS(rs, 1)];
106 T8 = T4 + T5;
107 T3 = T1 - T2;
108 Tb = T7 + T8;
109 T6 = T4 - T5;
110 }
111 Ci[WS(csi, 1)] = FNMS(KP587785252, T6, KP951056516 * T3);
112 Cr[0] = Ta + Tb;
113 Ci[WS(csi, 2)] = FMA(KP587785252, T3, KP951056516 * T6);
114 T9 = KP559016994 * (T7 - T8);
115 Tc = FNMS(KP250000000, Tb, Ta);
116 Cr[WS(csr, 1)] = T9 + Tc;
117 Cr[WS(csr, 2)] = Tc - T9;
118 }
119 }
120 }
121
122 static const kr2c_desc desc = { 5, "r2cf_5", {9, 3, 3, 0}, &GENUS };
123
124 void X(codelet_r2cf_5) (planner *p) {
125 X(kr2c_register) (p, r2cf_5, &desc);
126 }
127
128 #endif