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 02:06:10 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 -real2hc 32 */
27
28 /*
29 * This function contains 156 FP additions, 42 FP multiplications,
30 * (or, 140 additions, 26 multiplications, 16 fused multiply/add),
31 * 46 stack variables, and 64 memory accesses
32 */
33 static const fftw_real K195090322 =
34 FFTW_KONST(+0.195090322016128267848284868477022240927691618);
35 static const fftw_real K980785280 =
36 FFTW_KONST(+0.980785280403230449126182236134239036973933731);
37 static const fftw_real K555570233 =
38 FFTW_KONST(+0.555570233019602224742830813948532874374937191);
39 static const fftw_real K831469612 =
40 FFTW_KONST(+0.831469612302545237078788377617905756738560812);
41 static const fftw_real K382683432 =
42 FFTW_KONST(+0.382683432365089771728459984030398866761344562);
43 static const fftw_real K923879532 =
44 FFTW_KONST(+0.923879532511286756128183189396788286822416626);
45 static const fftw_real K707106781 =
46 FFTW_KONST(+0.707106781186547524400844362104849039284835938);
47
48 /*
49 * Generator Id's :
50 * $Id: exprdag.ml,v 1.43 2003/03/16 23:43:46 stevenj Exp $
51 * $Id: fft.ml,v 1.44 2003/03/16 23:43:46 stevenj Exp $
52 * $Id: to_c.ml,v 1.26 2003/03/16 23:43:46 stevenj Exp $
53 */
54
fftw_real2hc_32(const fftw_real * input,fftw_real * real_output,fftw_real * imag_output,int istride,int real_ostride,int imag_ostride)55 void fftw_real2hc_32(const fftw_real *input, fftw_real *real_output,
56 fftw_real *imag_output, int istride, int real_ostride,
57 int imag_ostride)
58 {
59 fftw_real tmp7;
60 fftw_real tmp135;
61 fftw_real tmp31;
62 fftw_real tmp83;
63 fftw_real tmp14;
64 fftw_real tmp148;
65 fftw_real tmp34;
66 fftw_real tmp82;
67 fftw_real tmp123;
68 fftw_real tmp143;
69 fftw_real tmp71;
70 fftw_real tmp99;
71 fftw_real tmp126;
72 fftw_real tmp144;
73 fftw_real tmp76;
74 fftw_real tmp100;
75 fftw_real tmp22;
76 fftw_real tmp136;
77 fftw_real tmp38;
78 fftw_real tmp80;
79 fftw_real tmp29;
80 fftw_real tmp137;
81 fftw_real tmp41;
82 fftw_real tmp79;
83 fftw_real tmp116;
84 fftw_real tmp140;
85 fftw_real tmp54;
86 fftw_real tmp96;
87 fftw_real tmp119;
88 fftw_real tmp141;
89 fftw_real tmp59;
90 fftw_real tmp97;
91 ASSERT_ALIGNED_DOUBLE;
92 {
93 fftw_real tmp1;
94 fftw_real tmp2;
95 fftw_real tmp3;
96 fftw_real tmp4;
97 fftw_real tmp5;
98 fftw_real tmp6;
99 ASSERT_ALIGNED_DOUBLE;
100 tmp1 = input[0];
101 tmp2 = input[16 * istride];
102 tmp3 = tmp1 + tmp2;
103 tmp4 = input[8 * istride];
104 tmp5 = input[24 * istride];
105 tmp6 = tmp4 + tmp5;
106 tmp7 = tmp3 + tmp6;
107 tmp135 = tmp3 - tmp6;
108 tmp31 = tmp1 - tmp2;
109 tmp83 = tmp4 - tmp5;
110 }
111 {
112 fftw_real tmp10;
113 fftw_real tmp32;
114 fftw_real tmp13;
115 fftw_real tmp33;
116 ASSERT_ALIGNED_DOUBLE;
117 {
118 fftw_real tmp8;
119 fftw_real tmp9;
120 fftw_real tmp11;
121 fftw_real tmp12;
122 ASSERT_ALIGNED_DOUBLE;
123 tmp8 = input[4 * istride];
124 tmp9 = input[20 * istride];
125 tmp10 = tmp8 + tmp9;
126 tmp32 = tmp8 - tmp9;
127 tmp11 = input[28 * istride];
128 tmp12 = input[12 * istride];
129 tmp13 = tmp11 + tmp12;
130 tmp33 = tmp11 - tmp12;
131 }
132 tmp14 = tmp10 + tmp13;
133 tmp148 = tmp13 - tmp10;
134 tmp34 = K707106781 * (tmp32 + tmp33);
135 tmp82 = K707106781 * (tmp33 - tmp32);
136 }
137 {
138 fftw_real tmp63;
139 fftw_real tmp121;
140 fftw_real tmp75;
141 fftw_real tmp122;
142 fftw_real tmp66;
143 fftw_real tmp124;
144 fftw_real tmp69;
145 fftw_real tmp125;
146 fftw_real tmp70;
147 fftw_real tmp72;
148 ASSERT_ALIGNED_DOUBLE;
149 {
150 fftw_real tmp61;
151 fftw_real tmp62;
152 fftw_real tmp73;
153 fftw_real tmp74;
154 ASSERT_ALIGNED_DOUBLE;
155 tmp61 = input[31 * istride];
156 tmp62 = input[15 * istride];
157 tmp63 = tmp61 - tmp62;
158 tmp121 = tmp61 + tmp62;
159 tmp73 = input[7 * istride];
160 tmp74 = input[23 * istride];
161 tmp75 = tmp73 - tmp74;
162 tmp122 = tmp73 + tmp74;
163 }
164 {
165 fftw_real tmp64;
166 fftw_real tmp65;
167 fftw_real tmp67;
168 fftw_real tmp68;
169 ASSERT_ALIGNED_DOUBLE;
170 tmp64 = input[3 * istride];
171 tmp65 = input[19 * istride];
172 tmp66 = tmp64 - tmp65;
173 tmp124 = tmp64 + tmp65;
174 tmp67 = input[27 * istride];
175 tmp68 = input[11 * istride];
176 tmp69 = tmp67 - tmp68;
177 tmp125 = tmp67 + tmp68;
178 }
179 tmp123 = tmp121 + tmp122;
180 tmp143 = tmp121 - tmp122;
181 tmp70 = K707106781 * (tmp66 + tmp69);
182 tmp71 = tmp63 + tmp70;
183 tmp99 = tmp63 - tmp70;
184 tmp126 = tmp124 + tmp125;
185 tmp144 = tmp125 - tmp124;
186 tmp72 = K707106781 * (tmp69 - tmp66);
187 tmp76 = tmp72 - tmp75;
188 tmp100 = tmp75 + tmp72;
189 }
190 {
191 fftw_real tmp18;
192 fftw_real tmp36;
193 fftw_real tmp21;
194 fftw_real tmp37;
195 ASSERT_ALIGNED_DOUBLE;
196 {
197 fftw_real tmp16;
198 fftw_real tmp17;
199 fftw_real tmp19;
200 fftw_real tmp20;
201 ASSERT_ALIGNED_DOUBLE;
202 tmp16 = input[2 * istride];
203 tmp17 = input[18 * istride];
204 tmp18 = tmp16 + tmp17;
205 tmp36 = tmp16 - tmp17;
206 tmp19 = input[10 * istride];
207 tmp20 = input[26 * istride];
208 tmp21 = tmp19 + tmp20;
209 tmp37 = tmp19 - tmp20;
210 }
211 tmp22 = tmp18 + tmp21;
212 tmp136 = tmp18 - tmp21;
213 tmp38 = (K923879532 * tmp36) - (K382683432 * tmp37);
214 tmp80 = (K382683432 * tmp36) + (K923879532 * tmp37);
215 }
216 {
217 fftw_real tmp25;
218 fftw_real tmp39;
219 fftw_real tmp28;
220 fftw_real tmp40;
221 ASSERT_ALIGNED_DOUBLE;
222 {
223 fftw_real tmp23;
224 fftw_real tmp24;
225 fftw_real tmp26;
226 fftw_real tmp27;
227 ASSERT_ALIGNED_DOUBLE;
228 tmp23 = input[30 * istride];
229 tmp24 = input[14 * istride];
230 tmp25 = tmp23 + tmp24;
231 tmp39 = tmp23 - tmp24;
232 tmp26 = input[6 * istride];
233 tmp27 = input[22 * istride];
234 tmp28 = tmp26 + tmp27;
235 tmp40 = tmp26 - tmp27;
236 }
237 tmp29 = tmp25 + tmp28;
238 tmp137 = tmp25 - tmp28;
239 tmp41 = (K923879532 * tmp39) + (K382683432 * tmp40);
240 tmp79 = (K382683432 * tmp39) - (K923879532 * tmp40);
241 }
242 {
243 fftw_real tmp46;
244 fftw_real tmp114;
245 fftw_real tmp58;
246 fftw_real tmp115;
247 fftw_real tmp49;
248 fftw_real tmp117;
249 fftw_real tmp52;
250 fftw_real tmp118;
251 fftw_real tmp53;
252 fftw_real tmp55;
253 ASSERT_ALIGNED_DOUBLE;
254 {
255 fftw_real tmp44;
256 fftw_real tmp45;
257 fftw_real tmp56;
258 fftw_real tmp57;
259 ASSERT_ALIGNED_DOUBLE;
260 tmp44 = input[istride];
261 tmp45 = input[17 * istride];
262 tmp46 = tmp44 - tmp45;
263 tmp114 = tmp44 + tmp45;
264 tmp56 = input[9 * istride];
265 tmp57 = input[25 * istride];
266 tmp58 = tmp56 - tmp57;
267 tmp115 = tmp56 + tmp57;
268 }
269 {
270 fftw_real tmp47;
271 fftw_real tmp48;
272 fftw_real tmp50;
273 fftw_real tmp51;
274 ASSERT_ALIGNED_DOUBLE;
275 tmp47 = input[5 * istride];
276 tmp48 = input[21 * istride];
277 tmp49 = tmp47 - tmp48;
278 tmp117 = tmp47 + tmp48;
279 tmp50 = input[29 * istride];
280 tmp51 = input[13 * istride];
281 tmp52 = tmp50 - tmp51;
282 tmp118 = tmp50 + tmp51;
283 }
284 tmp116 = tmp114 + tmp115;
285 tmp140 = tmp114 - tmp115;
286 tmp53 = K707106781 * (tmp49 + tmp52);
287 tmp54 = tmp46 + tmp53;
288 tmp96 = tmp46 - tmp53;
289 tmp119 = tmp117 + tmp118;
290 tmp141 = tmp118 - tmp117;
291 tmp55 = K707106781 * (tmp52 - tmp49);
292 tmp59 = tmp55 - tmp58;
293 tmp97 = tmp58 + tmp55;
294 }
295 {
296 fftw_real tmp15;
297 fftw_real tmp30;
298 fftw_real tmp131;
299 fftw_real tmp132;
300 fftw_real tmp133;
301 fftw_real tmp134;
302 ASSERT_ALIGNED_DOUBLE;
303 tmp15 = tmp7 + tmp14;
304 tmp30 = tmp22 + tmp29;
305 tmp131 = tmp15 + tmp30;
306 tmp132 = tmp116 + tmp119;
307 tmp133 = tmp123 + tmp126;
308 tmp134 = tmp132 + tmp133;
309 real_output[8 * real_ostride] = tmp15 - tmp30;
310 imag_output[8 * imag_ostride] = tmp133 - tmp132;
311 real_output[16 * real_ostride] = tmp131 - tmp134;
312 real_output[0] = tmp131 + tmp134;
313 }
314 {
315 fftw_real tmp113;
316 fftw_real tmp129;
317 fftw_real tmp128;
318 fftw_real tmp130;
319 fftw_real tmp120;
320 fftw_real tmp127;
321 ASSERT_ALIGNED_DOUBLE;
322 tmp113 = tmp7 - tmp14;
323 tmp129 = tmp29 - tmp22;
324 tmp120 = tmp116 - tmp119;
325 tmp127 = tmp123 - tmp126;
326 tmp128 = K707106781 * (tmp120 + tmp127);
327 tmp130 = K707106781 * (tmp127 - tmp120);
328 real_output[12 * real_ostride] = tmp113 - tmp128;
329 real_output[4 * real_ostride] = tmp113 + tmp128;
330 imag_output[4 * imag_ostride] = tmp129 + tmp130;
331 imag_output[12 * imag_ostride] = tmp130 - tmp129;
332 }
333 {
334 fftw_real tmp139;
335 fftw_real tmp155;
336 fftw_real tmp149;
337 fftw_real tmp151;
338 fftw_real tmp146;
339 fftw_real tmp150;
340 fftw_real tmp154;
341 fftw_real tmp156;
342 fftw_real tmp138;
343 fftw_real tmp147;
344 ASSERT_ALIGNED_DOUBLE;
345 tmp138 = K707106781 * (tmp136 + tmp137);
346 tmp139 = tmp135 + tmp138;
347 tmp155 = tmp135 - tmp138;
348 tmp147 = K707106781 * (tmp137 - tmp136);
349 tmp149 = tmp147 - tmp148;
350 tmp151 = tmp148 + tmp147;
351 {
352 fftw_real tmp142;
353 fftw_real tmp145;
354 fftw_real tmp152;
355 fftw_real tmp153;
356 ASSERT_ALIGNED_DOUBLE;
357 tmp142 = (K923879532 * tmp140) + (K382683432 * tmp141);
358 tmp145 = (K923879532 * tmp143) - (K382683432 * tmp144);
359 tmp146 = tmp142 + tmp145;
360 tmp150 = tmp145 - tmp142;
361 tmp152 = (K923879532 * tmp141) - (K382683432 * tmp140);
362 tmp153 = (K382683432 * tmp143) + (K923879532 * tmp144);
363 tmp154 = tmp152 + tmp153;
364 tmp156 = tmp153 - tmp152;
365 }
366 real_output[14 * real_ostride] = tmp139 - tmp146;
367 real_output[2 * real_ostride] = tmp139 + tmp146;
368 imag_output[6 * imag_ostride] = tmp149 + tmp150;
369 imag_output[10 * imag_ostride] = tmp150 - tmp149;
370 imag_output[2 * imag_ostride] = tmp151 + tmp154;
371 imag_output[14 * imag_ostride] = tmp154 - tmp151;
372 real_output[10 * real_ostride] = tmp155 - tmp156;
373 real_output[6 * real_ostride] = tmp155 + tmp156;
374 }
375 {
376 fftw_real tmp95;
377 fftw_real tmp111;
378 fftw_real tmp110;
379 fftw_real tmp112;
380 fftw_real tmp102;
381 fftw_real tmp106;
382 fftw_real tmp105;
383 fftw_real tmp107;
384 ASSERT_ALIGNED_DOUBLE;
385 {
386 fftw_real tmp93;
387 fftw_real tmp94;
388 fftw_real tmp108;
389 fftw_real tmp109;
390 ASSERT_ALIGNED_DOUBLE;
391 tmp93 = tmp31 - tmp34;
392 tmp94 = tmp80 + tmp79;
393 tmp95 = tmp93 + tmp94;
394 tmp111 = tmp93 - tmp94;
395 tmp108 = (K831469612 * tmp97) - (K555570233 * tmp96);
396 tmp109 = (K555570233 * tmp99) + (K831469612 * tmp100);
397 tmp110 = tmp108 + tmp109;
398 tmp112 = tmp109 - tmp108;
399 }
400 {
401 fftw_real tmp98;
402 fftw_real tmp101;
403 fftw_real tmp103;
404 fftw_real tmp104;
405 ASSERT_ALIGNED_DOUBLE;
406 tmp98 = (K831469612 * tmp96) + (K555570233 * tmp97);
407 tmp101 = (K831469612 * tmp99) - (K555570233 * tmp100);
408 tmp102 = tmp98 + tmp101;
409 tmp106 = tmp101 - tmp98;
410 tmp103 = tmp41 - tmp38;
411 tmp104 = tmp83 + tmp82;
412 tmp105 = tmp103 - tmp104;
413 tmp107 = tmp104 + tmp103;
414 }
415 real_output[13 * real_ostride] = tmp95 - tmp102;
416 real_output[3 * real_ostride] = tmp95 + tmp102;
417 imag_output[5 * imag_ostride] = tmp105 + tmp106;
418 imag_output[11 * imag_ostride] = tmp106 - tmp105;
419 imag_output[3 * imag_ostride] = tmp107 + tmp110;
420 imag_output[13 * imag_ostride] = tmp110 - tmp107;
421 real_output[11 * real_ostride] = tmp111 - tmp112;
422 real_output[5 * real_ostride] = tmp111 + tmp112;
423 }
424 {
425 fftw_real tmp43;
426 fftw_real tmp91;
427 fftw_real tmp90;
428 fftw_real tmp92;
429 fftw_real tmp78;
430 fftw_real tmp86;
431 fftw_real tmp85;
432 fftw_real tmp87;
433 ASSERT_ALIGNED_DOUBLE;
434 {
435 fftw_real tmp35;
436 fftw_real tmp42;
437 fftw_real tmp88;
438 fftw_real tmp89;
439 ASSERT_ALIGNED_DOUBLE;
440 tmp35 = tmp31 + tmp34;
441 tmp42 = tmp38 + tmp41;
442 tmp43 = tmp35 + tmp42;
443 tmp91 = tmp35 - tmp42;
444 tmp88 = (K980785280 * tmp59) - (K195090322 * tmp54);
445 tmp89 = (K195090322 * tmp71) + (K980785280 * tmp76);
446 tmp90 = tmp88 + tmp89;
447 tmp92 = tmp89 - tmp88;
448 }
449 {
450 fftw_real tmp60;
451 fftw_real tmp77;
452 fftw_real tmp81;
453 fftw_real tmp84;
454 ASSERT_ALIGNED_DOUBLE;
455 tmp60 = (K980785280 * tmp54) + (K195090322 * tmp59);
456 tmp77 = (K980785280 * tmp71) - (K195090322 * tmp76);
457 tmp78 = tmp60 + tmp77;
458 tmp86 = tmp77 - tmp60;
459 tmp81 = tmp79 - tmp80;
460 tmp84 = tmp82 - tmp83;
461 tmp85 = tmp81 - tmp84;
462 tmp87 = tmp84 + tmp81;
463 }
464 real_output[15 * real_ostride] = tmp43 - tmp78;
465 real_output[real_ostride] = tmp43 + tmp78;
466 imag_output[7 * imag_ostride] = tmp85 + tmp86;
467 imag_output[9 * imag_ostride] = tmp86 - tmp85;
468 imag_output[imag_ostride] = tmp87 + tmp90;
469 imag_output[15 * imag_ostride] = tmp90 - tmp87;
470 real_output[9 * real_ostride] = tmp91 - tmp92;
471 real_output[7 * real_ostride] = tmp91 + tmp92;
472 }
473 }
474
475 fftw_codelet_desc fftw_real2hc_32_desc = {
476 "fftw_real2hc_32",
477 (void (*)()) fftw_real2hc_32,
478 32,
479 FFTW_FORWARD,
480 FFTW_REAL2HC,
481 706,
482 0,
483 (const int *) 0,
484 };
485