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 Dec 10 07:06:12 EST 2020 */
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_hc2c.native -fma -compact -variables 4 -pipeline-latency 4 -twiddle-log3 -precompute-twiddles -n 4 -dit -name hc2cf2_4 -include rdft/scalar/hc2cf.h */
29
30 /*
31 * This function contains 24 FP additions, 16 FP multiplications,
32 * (or, 16 additions, 8 multiplications, 8 fused multiply/add),
33 * 21 stack variables, 0 constants, and 16 memory accesses
34 */
35 #include "rdft/scalar/hc2cf.h"
36
hc2cf2_4(R * Rp,R * Ip,R * Rm,R * Im,const R * W,stride rs,INT mb,INT me,INT ms)37 static void hc2cf2_4(R *Rp, R *Ip, R *Rm, R *Im, const R *W, stride rs, INT mb, INT me, INT ms)
38 {
39 {
40 INT m;
41 for (m = mb, W = W + ((mb - 1) * 4); m < me; m = m + 1, Rp = Rp + ms, Ip = Ip + ms, Rm = Rm - ms, Im = Im - ms, W = W + 4, MAKE_VOLATILE_STRIDE(16, rs)) {
42 E T2, T6, T3, T5, T7, Tb, T4, Ta;
43 T2 = W[0];
44 T6 = W[3];
45 T3 = W[2];
46 T4 = T2 * T3;
47 Ta = T2 * T6;
48 T5 = W[1];
49 T7 = FMA(T5, T6, T4);
50 Tb = FNMS(T5, T3, Ta);
51 {
52 E T1, Tx, Td, Tw, Ti, Tq, Tm, Ts;
53 T1 = Rp[0];
54 Tx = Rm[0];
55 {
56 E T8, T9, Tc, Tv;
57 T8 = Rp[WS(rs, 1)];
58 T9 = T7 * T8;
59 Tc = Rm[WS(rs, 1)];
60 Tv = T7 * Tc;
61 Td = FMA(Tb, Tc, T9);
62 Tw = FNMS(Tb, T8, Tv);
63 }
64 {
65 E Tf, Tg, Th, Tp;
66 Tf = Ip[0];
67 Tg = T2 * Tf;
68 Th = Im[0];
69 Tp = T2 * Th;
70 Ti = FMA(T5, Th, Tg);
71 Tq = FNMS(T5, Tf, Tp);
72 }
73 {
74 E Tj, Tk, Tl, Tr;
75 Tj = Ip[WS(rs, 1)];
76 Tk = T3 * Tj;
77 Tl = Im[WS(rs, 1)];
78 Tr = T3 * Tl;
79 Tm = FMA(T6, Tl, Tk);
80 Ts = FNMS(T6, Tj, Tr);
81 }
82 {
83 E Te, Tn, Tu, Ty;
84 Te = T1 + Td;
85 Tn = Ti + Tm;
86 Rm[WS(rs, 1)] = Te - Tn;
87 Rp[0] = Te + Tn;
88 Tu = Tq + Ts;
89 Ty = Tw + Tx;
90 Im[WS(rs, 1)] = Tu - Ty;
91 Ip[0] = Tu + Ty;
92 }
93 {
94 E To, Tt, Tz, TA;
95 To = T1 - Td;
96 Tt = Tq - Ts;
97 Rm[0] = To - Tt;
98 Rp[WS(rs, 1)] = To + Tt;
99 Tz = Tm - Ti;
100 TA = Tx - Tw;
101 Im[0] = Tz - TA;
102 Ip[WS(rs, 1)] = Tz + TA;
103 }
104 }
105 }
106 }
107 }
108
109 static const tw_instr twinstr[] = {
110 { TW_CEXP, 1, 1 },
111 { TW_CEXP, 1, 3 },
112 { TW_NEXT, 1, 0 }
113 };
114
115 static const hc2c_desc desc = { 4, "hc2cf2_4", twinstr, &GENUS, { 16, 8, 8, 0 } };
116
X(codelet_hc2cf2_4)117 void X(codelet_hc2cf2_4) (planner *p) {
118 X(khc2c_register) (p, hc2cf2_4, &desc, HC2C_VIA_RDFT);
119 }
120 #else
121
122 /* Generated by: ../../../genfft/gen_hc2c.native -compact -variables 4 -pipeline-latency 4 -twiddle-log3 -precompute-twiddles -n 4 -dit -name hc2cf2_4 -include rdft/scalar/hc2cf.h */
123
124 /*
125 * This function contains 24 FP additions, 16 FP multiplications,
126 * (or, 16 additions, 8 multiplications, 8 fused multiply/add),
127 * 21 stack variables, 0 constants, and 16 memory accesses
128 */
129 #include "rdft/scalar/hc2cf.h"
130
hc2cf2_4(R * Rp,R * Ip,R * Rm,R * Im,const R * W,stride rs,INT mb,INT me,INT ms)131 static void hc2cf2_4(R *Rp, R *Ip, R *Rm, R *Im, const R *W, stride rs, INT mb, INT me, INT ms)
132 {
133 {
134 INT m;
135 for (m = mb, W = W + ((mb - 1) * 4); m < me; m = m + 1, Rp = Rp + ms, Ip = Ip + ms, Rm = Rm - ms, Im = Im - ms, W = W + 4, MAKE_VOLATILE_STRIDE(16, rs)) {
136 E T2, T4, T3, T5, T6, T8;
137 T2 = W[0];
138 T4 = W[1];
139 T3 = W[2];
140 T5 = W[3];
141 T6 = FMA(T2, T3, T4 * T5);
142 T8 = FNMS(T4, T3, T2 * T5);
143 {
144 E T1, Tp, Ta, To, Te, Tk, Th, Tl, T7, T9;
145 T1 = Rp[0];
146 Tp = Rm[0];
147 T7 = Rp[WS(rs, 1)];
148 T9 = Rm[WS(rs, 1)];
149 Ta = FMA(T6, T7, T8 * T9);
150 To = FNMS(T8, T7, T6 * T9);
151 {
152 E Tc, Td, Tf, Tg;
153 Tc = Ip[0];
154 Td = Im[0];
155 Te = FMA(T2, Tc, T4 * Td);
156 Tk = FNMS(T4, Tc, T2 * Td);
157 Tf = Ip[WS(rs, 1)];
158 Tg = Im[WS(rs, 1)];
159 Th = FMA(T3, Tf, T5 * Tg);
160 Tl = FNMS(T5, Tf, T3 * Tg);
161 }
162 {
163 E Tb, Ti, Tn, Tq;
164 Tb = T1 + Ta;
165 Ti = Te + Th;
166 Rm[WS(rs, 1)] = Tb - Ti;
167 Rp[0] = Tb + Ti;
168 Tn = Tk + Tl;
169 Tq = To + Tp;
170 Im[WS(rs, 1)] = Tn - Tq;
171 Ip[0] = Tn + Tq;
172 }
173 {
174 E Tj, Tm, Tr, Ts;
175 Tj = T1 - Ta;
176 Tm = Tk - Tl;
177 Rm[0] = Tj - Tm;
178 Rp[WS(rs, 1)] = Tj + Tm;
179 Tr = Th - Te;
180 Ts = Tp - To;
181 Im[0] = Tr - Ts;
182 Ip[WS(rs, 1)] = Tr + Ts;
183 }
184 }
185 }
186 }
187 }
188
189 static const tw_instr twinstr[] = {
190 { TW_CEXP, 1, 1 },
191 { TW_CEXP, 1, 3 },
192 { TW_NEXT, 1, 0 }
193 };
194
195 static const hc2c_desc desc = { 4, "hc2cf2_4", twinstr, &GENUS, { 16, 8, 8, 0 } };
196
X(codelet_hc2cf2_4)197 void X(codelet_hc2cf2_4) (planner *p) {
198 X(khc2c_register) (p, hc2cf2_4, &desc, HC2C_VIA_RDFT);
199 }
200 #endif
201