/src/fftw3/rdft/scalar/r2cb/r2cbIII_4.c
Line | Count | Source (jump to first uncovered line) |
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 Sun Jun 22 06:44:45 UTC 2025 */ |
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 4 -name r2cbIII_4 -dft-III -include rdft/scalar/r2cbIII.h */ |
29 | | |
30 | | /* |
31 | | * This function contains 6 FP additions, 4 FP multiplications, |
32 | | * (or, 6 additions, 4 multiplications, 0 fused multiply/add), |
33 | | * 9 stack variables, 2 constants, and 8 memory accesses |
34 | | */ |
35 | | #include "rdft/scalar/r2cbIII.h" |
36 | | |
37 | | static void r2cbIII_4(R *R0, R *R1, R *Cr, R *Ci, stride rs, stride csr, stride csi, INT v, INT ivs, INT ovs) |
38 | | { |
39 | | DK(KP1_414213562, +1.414213562373095048801688724209698078569671875); |
40 | | DK(KP2_000000000, +2.000000000000000000000000000000000000000000000); |
41 | | { |
42 | | INT i; |
43 | | for (i = v; i > 0; i = i - 1, R0 = R0 + ovs, R1 = R1 + ovs, Cr = Cr + ivs, Ci = Ci + ivs, MAKE_VOLATILE_STRIDE(16, rs), MAKE_VOLATILE_STRIDE(16, csr), MAKE_VOLATILE_STRIDE(16, csi)) { |
44 | | E T1, T2, T3, T4, T5, T6; |
45 | | T1 = Cr[0]; |
46 | | T2 = Cr[WS(csr, 1)]; |
47 | | T3 = T1 - T2; |
48 | | T4 = Ci[0]; |
49 | | T5 = Ci[WS(csi, 1)]; |
50 | | T6 = T4 + T5; |
51 | | R0[0] = KP2_000000000 * (T1 + T2); |
52 | | R0[WS(rs, 1)] = KP2_000000000 * (T5 - T4); |
53 | | R1[0] = KP1_414213562 * (T3 - T6); |
54 | | R1[WS(rs, 1)] = -(KP1_414213562 * (T3 + T6)); |
55 | | } |
56 | | } |
57 | | } |
58 | | |
59 | | static const kr2c_desc desc = { 4, "r2cbIII_4", { 6, 4, 0, 0 }, &GENUS }; |
60 | | |
61 | | void X(codelet_r2cbIII_4) (planner *p) { X(kr2c_register) (p, r2cbIII_4, &desc); |
62 | | } |
63 | | |
64 | | #else |
65 | | |
66 | | /* Generated by: ../../../genfft/gen_r2cb.native -compact -variables 4 -pipeline-latency 4 -sign 1 -n 4 -name r2cbIII_4 -dft-III -include rdft/scalar/r2cbIII.h */ |
67 | | |
68 | | /* |
69 | | * This function contains 6 FP additions, 4 FP multiplications, |
70 | | * (or, 6 additions, 4 multiplications, 0 fused multiply/add), |
71 | | * 9 stack variables, 2 constants, and 8 memory accesses |
72 | | */ |
73 | | #include "rdft/scalar/r2cbIII.h" |
74 | | |
75 | | static void r2cbIII_4(R *R0, R *R1, R *Cr, R *Ci, stride rs, stride csr, stride csi, INT v, INT ivs, INT ovs) |
76 | 0 | { |
77 | 0 | DK(KP1_414213562, +1.414213562373095048801688724209698078569671875); |
78 | 0 | DK(KP2_000000000, +2.000000000000000000000000000000000000000000000); |
79 | 0 | { |
80 | 0 | INT i; |
81 | 0 | for (i = v; i > 0; i = i - 1, R0 = R0 + ovs, R1 = R1 + ovs, Cr = Cr + ivs, Ci = Ci + ivs, MAKE_VOLATILE_STRIDE(16, rs), MAKE_VOLATILE_STRIDE(16, csr), MAKE_VOLATILE_STRIDE(16, csi)) { |
82 | 0 | E T1, T2, T3, T4, T5, T6; |
83 | 0 | T1 = Cr[0]; |
84 | 0 | T2 = Cr[WS(csr, 1)]; |
85 | 0 | T3 = T1 - T2; |
86 | 0 | T4 = Ci[0]; |
87 | 0 | T5 = Ci[WS(csi, 1)]; |
88 | 0 | T6 = T4 + T5; |
89 | 0 | R0[0] = KP2_000000000 * (T1 + T2); |
90 | 0 | R0[WS(rs, 1)] = KP2_000000000 * (T5 - T4); |
91 | 0 | R1[0] = KP1_414213562 * (T3 - T6); |
92 | 0 | R1[WS(rs, 1)] = -(KP1_414213562 * (T3 + T6)); |
93 | 0 | } |
94 | 0 | } |
95 | 0 | } |
96 | | |
97 | | static const kr2c_desc desc = { 4, "r2cbIII_4", { 6, 4, 0, 0 }, &GENUS }; |
98 | | |
99 | 1 | void X(codelet_r2cbIII_4) (planner *p) { X(kr2c_register) (p, r2cbIII_4, &desc); |
100 | 1 | } |
101 | | |
102 | | #endif |