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comparison src/fftw-3.3.8/rdft/scalar/r2cb/r2cbIII_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 08:07:42 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_r2cb.native -fma -compact -variables 4 -pipeline-latency 4 -sign 1 -n 5 -name r2cbIII_5 -dft-III -include rdft/scalar/r2cbIII.h */
29
30 /*
31 * This function contains 12 FP additions, 10 FP multiplications,
32 * (or, 2 additions, 0 multiplications, 10 fused multiply/add),
33 * 18 stack variables, 5 constants, and 10 memory accesses
34 */
35 #include "rdft/scalar/r2cbIII.h"
36
37 static void r2cbIII_5(R *R0, R *R1, R *Cr, R *Ci, stride rs, stride csr, stride csi, INT v, INT ivs, INT ovs)
38 {
39 DK(KP1_902113032, +1.902113032590307144232878666758764286811397268);
40 DK(KP1_118033988, +1.118033988749894848204586834365638117720309180);
41 DK(KP2_000000000, +2.000000000000000000000000000000000000000000000);
42 DK(KP500000000, +0.500000000000000000000000000000000000000000000);
43 DK(KP618033988, +0.618033988749894848204586834365638117720309180);
44 {
45 INT i;
46 for (i = v; i > 0; i = i - 1, R0 = R0 + ovs, R1 = R1 + ovs, Cr = Cr + ivs, Ci = Ci + ivs, MAKE_VOLATILE_STRIDE(20, rs), MAKE_VOLATILE_STRIDE(20, csr), MAKE_VOLATILE_STRIDE(20, csi)) {
47 E Ta, Tc, T1, T4, T5, T6, Tb, T7;
48 {
49 E T8, T9, T2, T3;
50 T8 = Ci[WS(csi, 1)];
51 T9 = Ci[0];
52 Ta = FMA(KP618033988, T9, T8);
53 Tc = FMS(KP618033988, T8, T9);
54 T1 = Cr[WS(csr, 2)];
55 T2 = Cr[WS(csr, 1)];
56 T3 = Cr[0];
57 T4 = T2 + T3;
58 T5 = FNMS(KP500000000, T4, T1);
59 T6 = T3 - T2;
60 }
61 R0[0] = FMA(KP2_000000000, T4, T1);
62 Tb = FMA(KP1_118033988, T6, T5);
63 R0[WS(rs, 1)] = FMA(KP1_902113032, Tc, Tb);
64 R1[WS(rs, 1)] = FMS(KP1_902113032, Tc, Tb);
65 T7 = FNMS(KP1_118033988, T6, T5);
66 R1[0] = -(FMA(KP1_902113032, Ta, T7));
67 R0[WS(rs, 2)] = FNMS(KP1_902113032, Ta, T7);
68 }
69 }
70 }
71
72 static const kr2c_desc desc = { 5, "r2cbIII_5", {2, 0, 10, 0}, &GENUS };
73
74 void X(codelet_r2cbIII_5) (planner *p) {
75 X(kr2c_register) (p, r2cbIII_5, &desc);
76 }
77
78 #else
79
80 /* Generated by: ../../../genfft/gen_r2cb.native -compact -variables 4 -pipeline-latency 4 -sign 1 -n 5 -name r2cbIII_5 -dft-III -include rdft/scalar/r2cbIII.h */
81
82 /*
83 * This function contains 12 FP additions, 7 FP multiplications,
84 * (or, 8 additions, 3 multiplications, 4 fused multiply/add),
85 * 18 stack variables, 5 constants, and 10 memory accesses
86 */
87 #include "rdft/scalar/r2cbIII.h"
88
89 static void r2cbIII_5(R *R0, R *R1, R *Cr, R *Ci, stride rs, stride csr, stride csi, INT v, INT ivs, INT ovs)
90 {
91 DK(KP2_000000000, +2.000000000000000000000000000000000000000000000);
92 DK(KP1_118033988, +1.118033988749894848204586834365638117720309180);
93 DK(KP500000000, +0.500000000000000000000000000000000000000000000);
94 DK(KP1_175570504, +1.175570504584946258337411909278145537195304875);
95 DK(KP1_902113032, +1.902113032590307144232878666758764286811397268);
96 {
97 INT i;
98 for (i = v; i > 0; i = i - 1, R0 = R0 + ovs, R1 = R1 + ovs, Cr = Cr + ivs, Ci = Ci + ivs, MAKE_VOLATILE_STRIDE(20, rs), MAKE_VOLATILE_STRIDE(20, csr), MAKE_VOLATILE_STRIDE(20, csi)) {
99 E Ta, Tc, T1, T4, T5, T6, Tb, T7;
100 {
101 E T8, T9, T2, T3;
102 T8 = Ci[WS(csi, 1)];
103 T9 = Ci[0];
104 Ta = FMA(KP1_902113032, T8, KP1_175570504 * T9);
105 Tc = FNMS(KP1_902113032, T9, KP1_175570504 * T8);
106 T1 = Cr[WS(csr, 2)];
107 T2 = Cr[WS(csr, 1)];
108 T3 = Cr[0];
109 T4 = T2 + T3;
110 T5 = FMS(KP500000000, T4, T1);
111 T6 = KP1_118033988 * (T3 - T2);
112 }
113 R0[0] = FMA(KP2_000000000, T4, T1);
114 Tb = T6 - T5;
115 R0[WS(rs, 1)] = Tb + Tc;
116 R1[WS(rs, 1)] = Tc - Tb;
117 T7 = T5 + T6;
118 R1[0] = T7 - Ta;
119 R0[WS(rs, 2)] = -(T7 + Ta);
120 }
121 }
122 }
123
124 static const kr2c_desc desc = { 5, "r2cbIII_5", {8, 3, 4, 0}, &GENUS };
125
126 void X(codelet_r2cbIII_5) (planner *p) {
127 X(kr2c_register) (p, r2cbIII_5, &desc);
128 }
129
130 #endif