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fn_12.c
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1 /*
2 * Copyright (c) 1997-1999, 2003 Massachusetts Institute of Technology
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 *
18 */
19
20 /* This file was automatically generated --- DO NOT EDIT */
21 /* Generated on Mon Mar 24 02:05:40 EST 2003 */
22
23 #include "fftw-int.h"
24 #include "fftw.h"
25
26 /* Generated by: /homee/stevenj/cvs/fftw/gensrc/genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -notwiddle 12 */
27
28 /*
29 * This function contains 96 FP additions, 16 FP multiplications,
30 * (or, 88 additions, 8 multiplications, 8 fused multiply/add),
31 * 40 stack variables, and 48 memory accesses
32 */
33 static const fftw_real K866025403 =
34 FFTW_KONST(+0.866025403784438646763723170752936183471402627);
35 static const fftw_real K500000000 =
36 FFTW_KONST(+0.500000000000000000000000000000000000000000000);
37
38 /*
39 * Generator Id's :
40 * $Id: exprdag.ml,v 1.43 2003/03/16 23:43:46 stevenj Exp $
41 * $Id: fft.ml,v 1.44 2003/03/16 23:43:46 stevenj Exp $
42 * $Id: to_c.ml,v 1.26 2003/03/16 23:43:46 stevenj Exp $
43 */
44
45 void fftw_no_twiddle_12(const fftw_complex *input, fftw_complex *output,
46 int istride, int ostride)
47 {
48 fftw_real tmp5;
49 fftw_real tmp53;
50 fftw_real tmp36;
51 fftw_real tmp28;
52 fftw_real tmp35;
53 fftw_real tmp54;
54 fftw_real tmp10;
55 fftw_real tmp56;
56 fftw_real tmp39;
57 fftw_real tmp33;
58 fftw_real tmp38;
59 fftw_real tmp57;
60 fftw_real tmp16;
61 fftw_real tmp42;
62 fftw_real tmp72;
63 fftw_real tmp45;
64 fftw_real tmp92;
65 fftw_real tmp75;
66 fftw_real tmp21;
67 fftw_real tmp47;
68 fftw_real tmp77;
69 fftw_real tmp50;
70 fftw_real tmp93;
71 fftw_real tmp80;
72 ASSERT_ALIGNED_DOUBLE;
73 {
74 fftw_real tmp1;
75 fftw_real tmp2;
76 fftw_real tmp3;
77 fftw_real tmp4;
78 ASSERT_ALIGNED_DOUBLE;
79 tmp1 = c_re(input[0]);
80 tmp2 = c_re(input[4 * istride]);
81 tmp3 = c_re(input[8 * istride]);
82 tmp4 = tmp2 + tmp3;
83 tmp5 = tmp1 + tmp4;
84 tmp53 = tmp1 - (K500000000 * tmp4);
85 tmp36 = K866025403 * (tmp3 - tmp2);
86 }
87 {
88 fftw_real tmp24;
89 fftw_real tmp25;
90 fftw_real tmp26;
91 fftw_real tmp27;
92 ASSERT_ALIGNED_DOUBLE;
93 tmp24 = c_im(input[0]);
94 tmp25 = c_im(input[4 * istride]);
95 tmp26 = c_im(input[8 * istride]);
96 tmp27 = tmp25 + tmp26;
97 tmp28 = tmp24 + tmp27;
98 tmp35 = tmp24 - (K500000000 * tmp27);
99 tmp54 = K866025403 * (tmp25 - tmp26);
100 }
101 {
102 fftw_real tmp6;
103 fftw_real tmp7;
104 fftw_real tmp8;
105 fftw_real tmp9;
106 ASSERT_ALIGNED_DOUBLE;
107 tmp6 = c_re(input[6 * istride]);
108 tmp7 = c_re(input[10 * istride]);
109 tmp8 = c_re(input[2 * istride]);
110 tmp9 = tmp7 + tmp8;
111 tmp10 = tmp6 + tmp9;
112 tmp56 = tmp6 - (K500000000 * tmp9);
113 tmp39 = K866025403 * (tmp8 - tmp7);
114 }
115 {
116 fftw_real tmp29;
117 fftw_real tmp30;
118 fftw_real tmp31;
119 fftw_real tmp32;
120 ASSERT_ALIGNED_DOUBLE;
121 tmp29 = c_im(input[6 * istride]);
122 tmp30 = c_im(input[10 * istride]);
123 tmp31 = c_im(input[2 * istride]);
124 tmp32 = tmp30 + tmp31;
125 tmp33 = tmp29 + tmp32;
126 tmp38 = tmp29 - (K500000000 * tmp32);
127 tmp57 = K866025403 * (tmp30 - tmp31);
128 }
129 {
130 fftw_real tmp12;
131 fftw_real tmp13;
132 fftw_real tmp14;
133 fftw_real tmp15;
134 ASSERT_ALIGNED_DOUBLE;
135 tmp12 = c_re(input[3 * istride]);
136 tmp13 = c_re(input[7 * istride]);
137 tmp14 = c_re(input[11 * istride]);
138 tmp15 = tmp13 + tmp14;
139 tmp16 = tmp12 + tmp15;
140 tmp42 = tmp12 - (K500000000 * tmp15);
141 tmp72 = K866025403 * (tmp14 - tmp13);
142 }
143 {
144 fftw_real tmp73;
145 fftw_real tmp43;
146 fftw_real tmp44;
147 fftw_real tmp74;
148 ASSERT_ALIGNED_DOUBLE;
149 tmp73 = c_im(input[3 * istride]);
150 tmp43 = c_im(input[7 * istride]);
151 tmp44 = c_im(input[11 * istride]);
152 tmp74 = tmp43 + tmp44;
153 tmp45 = K866025403 * (tmp43 - tmp44);
154 tmp92 = tmp73 + tmp74;
155 tmp75 = tmp73 - (K500000000 * tmp74);
156 }
157 {
158 fftw_real tmp17;
159 fftw_real tmp18;
160 fftw_real tmp19;
161 fftw_real tmp20;
162 ASSERT_ALIGNED_DOUBLE;
163 tmp17 = c_re(input[9 * istride]);
164 tmp18 = c_re(input[istride]);
165 tmp19 = c_re(input[5 * istride]);
166 tmp20 = tmp18 + tmp19;
167 tmp21 = tmp17 + tmp20;
168 tmp47 = tmp17 - (K500000000 * tmp20);
169 tmp77 = K866025403 * (tmp19 - tmp18);
170 }
171 {
172 fftw_real tmp78;
173 fftw_real tmp48;
174 fftw_real tmp49;
175 fftw_real tmp79;
176 ASSERT_ALIGNED_DOUBLE;
177 tmp78 = c_im(input[9 * istride]);
178 tmp48 = c_im(input[istride]);
179 tmp49 = c_im(input[5 * istride]);
180 tmp79 = tmp48 + tmp49;
181 tmp50 = K866025403 * (tmp48 - tmp49);
182 tmp93 = tmp78 + tmp79;
183 tmp80 = tmp78 - (K500000000 * tmp79);
184 }
185 {
186 fftw_real tmp11;
187 fftw_real tmp22;
188 fftw_real tmp23;
189 fftw_real tmp34;
190 ASSERT_ALIGNED_DOUBLE;
191 tmp11 = tmp5 + tmp10;
192 tmp22 = tmp16 + tmp21;
193 c_re(output[6 * ostride]) = tmp11 - tmp22;
194 c_re(output[0]) = tmp11 + tmp22;
195 {
196 fftw_real tmp91;
197 fftw_real tmp94;
198 fftw_real tmp95;
199 fftw_real tmp96;
200 ASSERT_ALIGNED_DOUBLE;
201 tmp91 = tmp5 - tmp10;
202 tmp94 = tmp92 - tmp93;
203 c_re(output[3 * ostride]) = tmp91 - tmp94;
204 c_re(output[9 * ostride]) = tmp91 + tmp94;
205 tmp95 = tmp28 + tmp33;
206 tmp96 = tmp92 + tmp93;
207 c_im(output[6 * ostride]) = tmp95 - tmp96;
208 c_im(output[0]) = tmp95 + tmp96;
209 }
210 tmp23 = tmp16 - tmp21;
211 tmp34 = tmp28 - tmp33;
212 c_im(output[3 * ostride]) = tmp23 + tmp34;
213 c_im(output[9 * ostride]) = tmp34 - tmp23;
214 {
215 fftw_real tmp63;
216 fftw_real tmp83;
217 fftw_real tmp82;
218 fftw_real tmp84;
219 fftw_real tmp66;
220 fftw_real tmp70;
221 fftw_real tmp69;
222 fftw_real tmp71;
223 ASSERT_ALIGNED_DOUBLE;
224 {
225 fftw_real tmp61;
226 fftw_real tmp62;
227 fftw_real tmp76;
228 fftw_real tmp81;
229 ASSERT_ALIGNED_DOUBLE;
230 tmp61 = tmp36 + tmp35;
231 tmp62 = tmp39 + tmp38;
232 tmp63 = tmp61 - tmp62;
233 tmp83 = tmp61 + tmp62;
234 tmp76 = tmp72 + tmp75;
235 tmp81 = tmp77 + tmp80;
236 tmp82 = tmp76 - tmp81;
237 tmp84 = tmp76 + tmp81;
238 }
239 {
240 fftw_real tmp64;
241 fftw_real tmp65;
242 fftw_real tmp67;
243 fftw_real tmp68;
244 ASSERT_ALIGNED_DOUBLE;
245 tmp64 = tmp42 + tmp45;
246 tmp65 = tmp47 + tmp50;
247 tmp66 = tmp64 - tmp65;
248 tmp70 = tmp64 + tmp65;
249 tmp67 = tmp53 + tmp54;
250 tmp68 = tmp56 + tmp57;
251 tmp69 = tmp67 + tmp68;
252 tmp71 = tmp67 - tmp68;
253 }
254 c_im(output[ostride]) = tmp63 - tmp66;
255 c_im(output[7 * ostride]) = tmp63 + tmp66;
256 c_re(output[10 * ostride]) = tmp69 - tmp70;
257 c_re(output[4 * ostride]) = tmp69 + tmp70;
258 c_re(output[7 * ostride]) = tmp71 - tmp82;
259 c_re(output[ostride]) = tmp71 + tmp82;
260 c_im(output[10 * ostride]) = tmp83 - tmp84;
261 c_im(output[4 * ostride]) = tmp83 + tmp84;
262 }
263 {
264 fftw_real tmp41;
265 fftw_real tmp89;
266 fftw_real tmp88;
267 fftw_real tmp90;
268 fftw_real tmp52;
269 fftw_real tmp60;
270 fftw_real tmp59;
271 fftw_real tmp85;
272 ASSERT_ALIGNED_DOUBLE;
273 {
274 fftw_real tmp37;
275 fftw_real tmp40;
276 fftw_real tmp86;
277 fftw_real tmp87;
278 ASSERT_ALIGNED_DOUBLE;
279 tmp37 = tmp35 - tmp36;
280 tmp40 = tmp38 - tmp39;
281 tmp41 = tmp37 - tmp40;
282 tmp89 = tmp37 + tmp40;
283 tmp86 = tmp75 - tmp72;
284 tmp87 = tmp80 - tmp77;
285 tmp88 = tmp86 - tmp87;
286 tmp90 = tmp86 + tmp87;
287 }
288 {
289 fftw_real tmp46;
290 fftw_real tmp51;
291 fftw_real tmp55;
292 fftw_real tmp58;
293 ASSERT_ALIGNED_DOUBLE;
294 tmp46 = tmp42 - tmp45;
295 tmp51 = tmp47 - tmp50;
296 tmp52 = tmp46 - tmp51;
297 tmp60 = tmp46 + tmp51;
298 tmp55 = tmp53 - tmp54;
299 tmp58 = tmp56 - tmp57;
300 tmp59 = tmp55 + tmp58;
301 tmp85 = tmp55 - tmp58;
302 }
303 c_im(output[5 * ostride]) = tmp41 - tmp52;
304 c_im(output[11 * ostride]) = tmp41 + tmp52;
305 c_re(output[2 * ostride]) = tmp59 - tmp60;
306 c_re(output[8 * ostride]) = tmp59 + tmp60;
307 c_re(output[11 * ostride]) = tmp85 - tmp88;
308 c_re(output[5 * ostride]) = tmp85 + tmp88;
309 c_im(output[2 * ostride]) = tmp89 - tmp90;
310 c_im(output[8 * ostride]) = tmp89 + tmp90;
311 }
312 }
313 }
314
315 fftw_codelet_desc fftw_no_twiddle_12_desc = {
316 "fftw_no_twiddle_12",
317 (void (*)()) fftw_no_twiddle_12,
318 12,
319 FFTW_FORWARD,
320 FFTW_NOTW,
321 265,
322 0,
323 (const int *) 0,
324 };
fftw_codelet_desc
Definition: fftw.h:126
fftw_no_twiddle_12
void fftw_no_twiddle_12(const fftw_complex *input, fftw_complex *output, int istride, int ostride)
Definition: fn_12.c:45
fftw-int.h
fftw_complex
Definition: fftw.h:57
FFTW_KONST
#define FFTW_KONST(x)
Definition: fftw-int.h:178
fftw.h
c_re
#define c_re(c)
Definition: fftw.h:60
ASSERT_ALIGNED_DOUBLE
#define ASSERT_ALIGNED_DOUBLE
Definition: fftw-int.h:236
c_im
#define c_im(c)
Definition: fftw.h:61
fftw_real
float fftw_real
Definition: fftw.h:49
FFTW_NOTW
Definition: fftw.h:121
fftw_no_twiddle_12_desc
fftw_codelet_desc fftw_no_twiddle_12_desc
Definition: fn_12.c:315
FFTW_FORWARD
Definition: fftw.h:64