/src/fftw3/dft/scalar/codelets/t1_2.c
Line | Count | Source |
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 Sep 8 06:38:34 UTC 2024 */ |
23 | | |
24 | | #include "dft/codelet-dft.h" |
25 | | |
26 | | #if defined(ARCH_PREFERS_FMA) || defined(ISA_EXTENSION_PREFERS_FMA) |
27 | | |
28 | | /* Generated by: ../../../genfft/gen_twiddle.native -fma -compact -variables 4 -pipeline-latency 4 -n 2 -name t1_2 -include dft/scalar/t.h */ |
29 | | |
30 | | /* |
31 | | * This function contains 6 FP additions, 4 FP multiplications, |
32 | | * (or, 4 additions, 2 multiplications, 2 fused multiply/add), |
33 | | * 11 stack variables, 0 constants, and 8 memory accesses |
34 | | */ |
35 | | #include "dft/scalar/t.h" |
36 | | |
37 | | static void t1_2(R *ri, R *ii, const R *W, stride rs, INT mb, INT me, INT ms) |
38 | | { |
39 | | { |
40 | | INT m; |
41 | | for (m = mb, W = W + (mb * 2); m < me; m = m + 1, ri = ri + ms, ii = ii + ms, W = W + 2, MAKE_VOLATILE_STRIDE(4, rs)) { |
42 | | E T1, Ta, T3, T6, T4, T8, T2, T7, T9, T5; |
43 | | T1 = ri[0]; |
44 | | Ta = ii[0]; |
45 | | T3 = ri[WS(rs, 1)]; |
46 | | T6 = ii[WS(rs, 1)]; |
47 | | T2 = W[0]; |
48 | | T4 = T2 * T3; |
49 | | T8 = T2 * T6; |
50 | | T5 = W[1]; |
51 | | T7 = FMA(T5, T6, T4); |
52 | | T9 = FNMS(T5, T3, T8); |
53 | | ri[WS(rs, 1)] = T1 - T7; |
54 | | ii[WS(rs, 1)] = Ta - T9; |
55 | | ri[0] = T1 + T7; |
56 | | ii[0] = T9 + Ta; |
57 | | } |
58 | | } |
59 | | } |
60 | | |
61 | | static const tw_instr twinstr[] = { |
62 | | { TW_FULL, 0, 2 }, |
63 | | { TW_NEXT, 1, 0 } |
64 | | }; |
65 | | |
66 | | static const ct_desc desc = { 2, "t1_2", twinstr, &GENUS, { 4, 2, 2, 0 }, 0, 0, 0 }; |
67 | | |
68 | | void X(codelet_t1_2) (planner *p) { |
69 | | X(kdft_dit_register) (p, t1_2, &desc); |
70 | | } |
71 | | #else |
72 | | |
73 | | /* Generated by: ../../../genfft/gen_twiddle.native -compact -variables 4 -pipeline-latency 4 -n 2 -name t1_2 -include dft/scalar/t.h */ |
74 | | |
75 | | /* |
76 | | * This function contains 6 FP additions, 4 FP multiplications, |
77 | | * (or, 4 additions, 2 multiplications, 2 fused multiply/add), |
78 | | * 9 stack variables, 0 constants, and 8 memory accesses |
79 | | */ |
80 | | #include "dft/scalar/t.h" |
81 | | |
82 | | static void t1_2(R *ri, R *ii, const R *W, stride rs, INT mb, INT me, INT ms) |
83 | 200 | { |
84 | 200 | { |
85 | 200 | INT m; |
86 | 3.87k | for (m = mb, W = W + (mb * 2); m < me; m = m + 1, ri = ri + ms, ii = ii + ms, W = W + 2, MAKE_VOLATILE_STRIDE(4, rs)) { |
87 | 3.67k | E T1, T8, T6, T7; |
88 | 3.67k | T1 = ri[0]; |
89 | 3.67k | T8 = ii[0]; |
90 | 3.67k | { |
91 | 3.67k | E T3, T5, T2, T4; |
92 | 3.67k | T3 = ri[WS(rs, 1)]; |
93 | 3.67k | T5 = ii[WS(rs, 1)]; |
94 | 3.67k | T2 = W[0]; |
95 | 3.67k | T4 = W[1]; |
96 | 3.67k | T6 = FMA(T2, T3, T4 * T5); |
97 | 3.67k | T7 = FNMS(T4, T3, T2 * T5); |
98 | 3.67k | } |
99 | 3.67k | ri[WS(rs, 1)] = T1 - T6; |
100 | 3.67k | ii[WS(rs, 1)] = T8 - T7; |
101 | 3.67k | ri[0] = T1 + T6; |
102 | 3.67k | ii[0] = T7 + T8; |
103 | 3.67k | } |
104 | 200 | } |
105 | 200 | } |
106 | | |
107 | | static const tw_instr twinstr[] = { |
108 | | { TW_FULL, 0, 2 }, |
109 | | { TW_NEXT, 1, 0 } |
110 | | }; |
111 | | |
112 | | static const ct_desc desc = { 2, "t1_2", twinstr, &GENUS, { 4, 2, 2, 0 }, 0, 0, 0 }; |
113 | | |
114 | 1 | void X(codelet_t1_2) (planner *p) { |
115 | 1 | X(kdft_dit_register) (p, t1_2, &desc); |
116 | 1 | } |
117 | | #endif |