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comparison src/fftw-3.3.3/dft/simd/common/t3bv_8.c @ 10:37bf6b4a2645

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Add FFTW3
author Chris Cannam
date Wed, 20 Mar 2013 15:35:50 +0000
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9:c0fb53affa76 10:37bf6b4a2645
1 /*
2 * Copyright (c) 2003, 2007-11 Matteo Frigo
3 * Copyright (c) 2003, 2007-11 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 Nov 25 07:39:18 EST 2012 */
23
24 #include "codelet-dft.h"
25
26 #ifdef HAVE_FMA
27
28 /* Generated by: ../../../genfft/gen_twiddle_c.native -fma -reorder-insns -schedule-for-pipeline -simd -compact -variables 4 -pipeline-latency 8 -twiddle-log3 -precompute-twiddles -no-generate-bytw -n 8 -name t3bv_8 -include t3b.h -sign 1 */
29
30 /*
31 * This function contains 37 FP additions, 32 FP multiplications,
32 * (or, 27 additions, 22 multiplications, 10 fused multiply/add),
33 * 43 stack variables, 1 constants, and 16 memory accesses
34 */
35 #include "t3b.h"
36
37 static void t3bv_8(R *ri, R *ii, const R *W, stride rs, INT mb, INT me, INT ms)
38 {
39 DVK(KP707106781, +0.707106781186547524400844362104849039284835938);
40 {
41 INT m;
42 R *x;
43 x = ii;
44 for (m = mb, W = W + (mb * ((TWVL / VL) * 6)); m < me; m = m + VL, x = x + (VL * ms), W = W + (TWVL * 6), MAKE_VOLATILE_STRIDE(8, rs)) {
45 V T2, T3, Tb, T1, T5, Tn, Tq, T8, Td, T4, Ta, Tp, Tg, Ti, T9;
46 T2 = LDW(&(W[0]));
47 T3 = LDW(&(W[TWVL * 2]));
48 Tb = LDW(&(W[TWVL * 4]));
49 T1 = LD(&(x[0]), ms, &(x[0]));
50 T5 = LD(&(x[WS(rs, 4)]), ms, &(x[0]));
51 Tn = LD(&(x[WS(rs, 2)]), ms, &(x[0]));
52 Tq = LD(&(x[WS(rs, 6)]), ms, &(x[0]));
53 T8 = LD(&(x[WS(rs, 1)]), ms, &(x[WS(rs, 1)]));
54 Td = LD(&(x[WS(rs, 5)]), ms, &(x[WS(rs, 1)]));
55 T4 = VZMUL(T2, T3);
56 Ta = VZMULJ(T2, T3);
57 Tp = VZMULJ(T2, Tb);
58 Tg = LD(&(x[WS(rs, 7)]), ms, &(x[WS(rs, 1)]));
59 Ti = LD(&(x[WS(rs, 3)]), ms, &(x[WS(rs, 1)]));
60 T9 = VZMUL(T2, T8);
61 {
62 V T6, To, Tc, Tr, Th, Tj;
63 T6 = VZMUL(T4, T5);
64 To = VZMUL(Ta, Tn);
65 Tc = VZMULJ(Ta, Tb);
66 Tr = VZMUL(Tp, Tq);
67 Th = VZMUL(Tb, Tg);
68 Tj = VZMUL(T3, Ti);
69 {
70 V Tx, T7, Te, Ts, Ty, Tk, TB;
71 Tx = VADD(T1, T6);
72 T7 = VSUB(T1, T6);
73 Te = VZMUL(Tc, Td);
74 Ts = VSUB(To, Tr);
75 Ty = VADD(To, Tr);
76 Tk = VSUB(Th, Tj);
77 TB = VADD(Th, Tj);
78 {
79 V Tf, TA, Tz, TD;
80 Tf = VSUB(T9, Te);
81 TA = VADD(T9, Te);
82 Tz = VSUB(Tx, Ty);
83 TD = VADD(Tx, Ty);
84 {
85 V TC, TE, Tl, Tt;
86 TC = VSUB(TA, TB);
87 TE = VADD(TA, TB);
88 Tl = VADD(Tf, Tk);
89 Tt = VSUB(Tf, Tk);
90 {
91 V Tu, Tw, Tm, Tv;
92 ST(&(x[0]), VADD(TD, TE), ms, &(x[0]));
93 ST(&(x[WS(rs, 4)]), VSUB(TD, TE), ms, &(x[0]));
94 ST(&(x[WS(rs, 2)]), VFMAI(TC, Tz), ms, &(x[0]));
95 ST(&(x[WS(rs, 6)]), VFNMSI(TC, Tz), ms, &(x[0]));
96 Tu = VFNMS(LDK(KP707106781), Tt, Ts);
97 Tw = VFMA(LDK(KP707106781), Tt, Ts);
98 Tm = VFNMS(LDK(KP707106781), Tl, T7);
99 Tv = VFMA(LDK(KP707106781), Tl, T7);
100 ST(&(x[WS(rs, 1)]), VFMAI(Tw, Tv), ms, &(x[WS(rs, 1)]));
101 ST(&(x[WS(rs, 7)]), VFNMSI(Tw, Tv), ms, &(x[WS(rs, 1)]));
102 ST(&(x[WS(rs, 5)]), VFMAI(Tu, Tm), ms, &(x[WS(rs, 1)]));
103 ST(&(x[WS(rs, 3)]), VFNMSI(Tu, Tm), ms, &(x[WS(rs, 1)]));
104 }
105 }
106 }
107 }
108 }
109 }
110 }
111 VLEAVE();
112 }
113
114 static const tw_instr twinstr[] = {
115 VTW(0, 1),
116 VTW(0, 3),
117 VTW(0, 7),
118 {TW_NEXT, VL, 0}
119 };
120
121 static const ct_desc desc = { 8, XSIMD_STRING("t3bv_8"), twinstr, &GENUS, {27, 22, 10, 0}, 0, 0, 0 };
122
123 void XSIMD(codelet_t3bv_8) (planner *p) {
124 X(kdft_dit_register) (p, t3bv_8, &desc);
125 }
126 #else /* HAVE_FMA */
127
128 /* Generated by: ../../../genfft/gen_twiddle_c.native -simd -compact -variables 4 -pipeline-latency 8 -twiddle-log3 -precompute-twiddles -no-generate-bytw -n 8 -name t3bv_8 -include t3b.h -sign 1 */
129
130 /*
131 * This function contains 37 FP additions, 24 FP multiplications,
132 * (or, 37 additions, 24 multiplications, 0 fused multiply/add),
133 * 31 stack variables, 1 constants, and 16 memory accesses
134 */
135 #include "t3b.h"
136
137 static void t3bv_8(R *ri, R *ii, const R *W, stride rs, INT mb, INT me, INT ms)
138 {
139 DVK(KP707106781, +0.707106781186547524400844362104849039284835938);
140 {
141 INT m;
142 R *x;
143 x = ii;
144 for (m = mb, W = W + (mb * ((TWVL / VL) * 6)); m < me; m = m + VL, x = x + (VL * ms), W = W + (TWVL * 6), MAKE_VOLATILE_STRIDE(8, rs)) {
145 V T1, T4, T5, Tp, T6, T7, Tj;
146 T1 = LDW(&(W[0]));
147 T4 = LDW(&(W[TWVL * 2]));
148 T5 = VZMULJ(T1, T4);
149 Tp = VZMUL(T1, T4);
150 T6 = LDW(&(W[TWVL * 4]));
151 T7 = VZMULJ(T5, T6);
152 Tj = VZMULJ(T1, T6);
153 {
154 V Ts, Tx, Tm, Ty, Ta, TA, Tf, TB, To, Tr, Tq;
155 To = LD(&(x[0]), ms, &(x[0]));
156 Tq = LD(&(x[WS(rs, 4)]), ms, &(x[0]));
157 Tr = VZMUL(Tp, Tq);
158 Ts = VSUB(To, Tr);
159 Tx = VADD(To, Tr);
160 {
161 V Ti, Tl, Th, Tk;
162 Th = LD(&(x[WS(rs, 2)]), ms, &(x[0]));
163 Ti = VZMUL(T5, Th);
164 Tk = LD(&(x[WS(rs, 6)]), ms, &(x[0]));
165 Tl = VZMUL(Tj, Tk);
166 Tm = VSUB(Ti, Tl);
167 Ty = VADD(Ti, Tl);
168 }
169 {
170 V T3, T9, T2, T8;
171 T2 = LD(&(x[WS(rs, 1)]), ms, &(x[WS(rs, 1)]));
172 T3 = VZMUL(T1, T2);
173 T8 = LD(&(x[WS(rs, 5)]), ms, &(x[WS(rs, 1)]));
174 T9 = VZMUL(T7, T8);
175 Ta = VSUB(T3, T9);
176 TA = VADD(T3, T9);
177 }
178 {
179 V Tc, Te, Tb, Td;
180 Tb = LD(&(x[WS(rs, 7)]), ms, &(x[WS(rs, 1)]));
181 Tc = VZMUL(T6, Tb);
182 Td = LD(&(x[WS(rs, 3)]), ms, &(x[WS(rs, 1)]));
183 Te = VZMUL(T4, Td);
184 Tf = VSUB(Tc, Te);
185 TB = VADD(Tc, Te);
186 }
187 {
188 V Tz, TC, TD, TE;
189 Tz = VSUB(Tx, Ty);
190 TC = VBYI(VSUB(TA, TB));
191 ST(&(x[WS(rs, 6)]), VSUB(Tz, TC), ms, &(x[0]));
192 ST(&(x[WS(rs, 2)]), VADD(Tz, TC), ms, &(x[0]));
193 TD = VADD(Tx, Ty);
194 TE = VADD(TA, TB);
195 ST(&(x[WS(rs, 4)]), VSUB(TD, TE), ms, &(x[0]));
196 ST(&(x[0]), VADD(TD, TE), ms, &(x[0]));
197 {
198 V Tn, Tv, Tu, Tw, Tg, Tt;
199 Tg = VMUL(LDK(KP707106781), VSUB(Ta, Tf));
200 Tn = VBYI(VSUB(Tg, Tm));
201 Tv = VBYI(VADD(Tm, Tg));
202 Tt = VMUL(LDK(KP707106781), VADD(Ta, Tf));
203 Tu = VSUB(Ts, Tt);
204 Tw = VADD(Ts, Tt);
205 ST(&(x[WS(rs, 3)]), VADD(Tn, Tu), ms, &(x[WS(rs, 1)]));
206 ST(&(x[WS(rs, 7)]), VSUB(Tw, Tv), ms, &(x[WS(rs, 1)]));
207 ST(&(x[WS(rs, 5)]), VSUB(Tu, Tn), ms, &(x[WS(rs, 1)]));
208 ST(&(x[WS(rs, 1)]), VADD(Tv, Tw), ms, &(x[WS(rs, 1)]));
209 }
210 }
211 }
212 }
213 }
214 VLEAVE();
215 }
216
217 static const tw_instr twinstr[] = {
218 VTW(0, 1),
219 VTW(0, 3),
220 VTW(0, 7),
221 {TW_NEXT, VL, 0}
222 };
223
224 static const ct_desc desc = { 8, XSIMD_STRING("t3bv_8"), twinstr, &GENUS, {37, 24, 0, 0}, 0, 0, 0 };
225
226 void XSIMD(codelet_t3bv_8) (planner *p) {
227 X(kdft_dit_register) (p, t3bv_8, &desc);
228 }
229 #endif /* HAVE_FMA */