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fn_9.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 02:05:38 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 9 */
27
28 /*
29 * This function contains 80 FP additions, 40 FP multiplications,
30 * (or, 60 additions, 20 multiplications, 20 fused multiply/add),
31 * 30 stack variables, and 36 memory accesses
32 */
33 static const fftw_real K939692620 =
34 FFTW_KONST(+0.939692620785908384054109277324731469936208134);
35 static const fftw_real K342020143 =
36 FFTW_KONST(+0.342020143325668733044099614682259580763083368);
37 static const fftw_real K984807753 =
38 FFTW_KONST(+0.984807753012208059366743024589523013670643252);
39 static const fftw_real K173648177 =
40 FFTW_KONST(+0.173648177666930348851716626769314796000375677);
41 static const fftw_real K642787609 =
42 FFTW_KONST(+0.642787609686539326322643409907263432907559884);
43 static const fftw_real K766044443 =
44 FFTW_KONST(+0.766044443118978035202392650555416673935832457);
45 static const fftw_real K866025403 =
46 FFTW_KONST(+0.866025403784438646763723170752936183471402627);
47 static const fftw_real K500000000 =
48 FFTW_KONST(+0.500000000000000000000000000000000000000000000);
49
50 /*
51 * Generator Id's :
52 * $Id: exprdag.ml,v 1.43 2003/03/16 23:43:46 stevenj Exp $
53 * $Id: fft.ml,v 1.44 2003/03/16 23:43:46 stevenj Exp $
54 * $Id: to_c.ml,v 1.26 2003/03/16 23:43:46 stevenj Exp $
55 */
56
57 void fftw_no_twiddle_9(const fftw_complex *input, fftw_complex *output,
58 int istride, int ostride)
59 {
60 fftw_real tmp5;
61 fftw_real tmp17;
62 fftw_real tmp50;
63 fftw_real tmp20;
64 fftw_real tmp78;
65 fftw_real tmp53;
66 fftw_real tmp10;
67 fftw_real tmp26;
68 fftw_real tmp58;
69 fftw_real tmp74;
70 fftw_real tmp31;
71 fftw_real tmp59;
72 fftw_real tmp15;
73 fftw_real tmp37;
74 fftw_real tmp62;
75 fftw_real tmp75;
76 fftw_real tmp42;
77 fftw_real tmp61;
78 ASSERT_ALIGNED_DOUBLE;
79 {
80 fftw_real tmp1;
81 fftw_real tmp2;
82 fftw_real tmp3;
83 fftw_real tmp4;
84 ASSERT_ALIGNED_DOUBLE;
85 tmp1 = c_re(input[0]);
86 tmp2 = c_re(input[3 * istride]);
87 tmp3 = c_re(input[6 * istride]);
88 tmp4 = tmp2 + tmp3;
89 tmp5 = tmp1 + tmp4;
90 tmp17 = tmp1 - (K500000000 * tmp4);
91 tmp50 = K866025403 * (tmp3 - tmp2);
92 }
93 {
94 fftw_real tmp51;
95 fftw_real tmp18;
96 fftw_real tmp19;
97 fftw_real tmp52;
98 ASSERT_ALIGNED_DOUBLE;
99 tmp51 = c_im(input[0]);
100 tmp18 = c_im(input[3 * istride]);
101 tmp19 = c_im(input[6 * istride]);
102 tmp52 = tmp18 + tmp19;
103 tmp20 = K866025403 * (tmp18 - tmp19);
104 tmp78 = tmp51 + tmp52;
105 tmp53 = tmp51 - (K500000000 * tmp52);
106 }
107 {
108 fftw_real tmp6;
109 fftw_real tmp28;
110 fftw_real tmp9;
111 fftw_real tmp27;
112 fftw_real tmp25;
113 fftw_real tmp29;
114 fftw_real tmp22;
115 fftw_real tmp30;
116 ASSERT_ALIGNED_DOUBLE;
117 tmp6 = c_re(input[istride]);
118 tmp28 = c_im(input[istride]);
119 {
120 fftw_real tmp7;
121 fftw_real tmp8;
122 fftw_real tmp23;
123 fftw_real tmp24;
124 ASSERT_ALIGNED_DOUBLE;
125 tmp7 = c_re(input[4 * istride]);
126 tmp8 = c_re(input[7 * istride]);
127 tmp9 = tmp7 + tmp8;
128 tmp27 = K866025403 * (tmp8 - tmp7);
129 tmp23 = c_im(input[4 * istride]);
130 tmp24 = c_im(input[7 * istride]);
131 tmp25 = K866025403 * (tmp23 - tmp24);
132 tmp29 = tmp23 + tmp24;
133 }
134 tmp10 = tmp6 + tmp9;
135 tmp22 = tmp6 - (K500000000 * tmp9);
136 tmp26 = tmp22 + tmp25;
137 tmp58 = tmp22 - tmp25;
138 tmp74 = tmp28 + tmp29;
139 tmp30 = tmp28 - (K500000000 * tmp29);
140 tmp31 = tmp27 + tmp30;
141 tmp59 = tmp30 - tmp27;
142 }
143 {
144 fftw_real tmp11;
145 fftw_real tmp39;
146 fftw_real tmp14;
147 fftw_real tmp38;
148 fftw_real tmp36;
149 fftw_real tmp40;
150 fftw_real tmp33;
151 fftw_real tmp41;
152 ASSERT_ALIGNED_DOUBLE;
153 tmp11 = c_re(input[2 * istride]);
154 tmp39 = c_im(input[2 * istride]);
155 {
156 fftw_real tmp12;
157 fftw_real tmp13;
158 fftw_real tmp34;
159 fftw_real tmp35;
160 ASSERT_ALIGNED_DOUBLE;
161 tmp12 = c_re(input[5 * istride]);
162 tmp13 = c_re(input[8 * istride]);
163 tmp14 = tmp12 + tmp13;
164 tmp38 = K866025403 * (tmp13 - tmp12);
165 tmp34 = c_im(input[5 * istride]);
166 tmp35 = c_im(input[8 * istride]);
167 tmp36 = K866025403 * (tmp34 - tmp35);
168 tmp40 = tmp34 + tmp35;
169 }
170 tmp15 = tmp11 + tmp14;
171 tmp33 = tmp11 - (K500000000 * tmp14);
172 tmp37 = tmp33 + tmp36;
173 tmp62 = tmp33 - tmp36;
174 tmp75 = tmp39 + tmp40;
175 tmp41 = tmp39 - (K500000000 * tmp40);
176 tmp42 = tmp38 + tmp41;
177 tmp61 = tmp41 - tmp38;
178 }
179 {
180 fftw_real tmp76;
181 fftw_real tmp16;
182 fftw_real tmp73;
183 fftw_real tmp77;
184 fftw_real tmp79;
185 fftw_real tmp80;
186 ASSERT_ALIGNED_DOUBLE;
187 tmp76 = K866025403 * (tmp74 - tmp75);
188 tmp16 = tmp10 + tmp15;
189 tmp73 = tmp5 - (K500000000 * tmp16);
190 c_re(output[0]) = tmp5 + tmp16;
191 c_re(output[3 * ostride]) = tmp73 + tmp76;
192 c_re(output[6 * ostride]) = tmp73 - tmp76;
193 tmp77 = K866025403 * (tmp15 - tmp10);
194 tmp79 = tmp74 + tmp75;
195 tmp80 = tmp78 - (K500000000 * tmp79);
196 c_im(output[3 * ostride]) = tmp77 + tmp80;
197 c_im(output[6 * ostride]) = tmp80 - tmp77;
198 c_im(output[0]) = tmp78 + tmp79;
199 }
200 {
201 fftw_real tmp21;
202 fftw_real tmp54;
203 fftw_real tmp44;
204 fftw_real tmp49;
205 fftw_real tmp48;
206 fftw_real tmp55;
207 fftw_real tmp45;
208 fftw_real tmp56;
209 ASSERT_ALIGNED_DOUBLE;
210 tmp21 = tmp17 + tmp20;
211 tmp54 = tmp50 + tmp53;
212 {
213 fftw_real tmp32;
214 fftw_real tmp43;
215 fftw_real tmp46;
216 fftw_real tmp47;
217 ASSERT_ALIGNED_DOUBLE;
218 tmp32 = (K766044443 * tmp26) + (K642787609 * tmp31);
219 tmp43 = (K173648177 * tmp37) + (K984807753 * tmp42);
220 tmp44 = tmp32 + tmp43;
221 tmp49 = K866025403 * (tmp43 - tmp32);
222 tmp46 = (K766044443 * tmp31) - (K642787609 * tmp26);
223 tmp47 = (K173648177 * tmp42) - (K984807753 * tmp37);
224 tmp48 = K866025403 * (tmp46 - tmp47);
225 tmp55 = tmp46 + tmp47;
226 }
227 c_re(output[ostride]) = tmp21 + tmp44;
228 tmp45 = tmp21 - (K500000000 * tmp44);
229 c_re(output[7 * ostride]) = tmp45 - tmp48;
230 c_re(output[4 * ostride]) = tmp45 + tmp48;
231 c_im(output[ostride]) = tmp54 + tmp55;
232 tmp56 = tmp54 - (K500000000 * tmp55);
233 c_im(output[4 * ostride]) = tmp49 + tmp56;
234 c_im(output[7 * ostride]) = tmp56 - tmp49;
235 }
236 {
237 fftw_real tmp57;
238 fftw_real tmp69;
239 fftw_real tmp72;
240 fftw_real tmp66;
241 fftw_real tmp64;
242 fftw_real tmp65;
243 fftw_real tmp71;
244 fftw_real tmp70;
245 ASSERT_ALIGNED_DOUBLE;
246 {
247 fftw_real tmp67;
248 fftw_real tmp68;
249 fftw_real tmp60;
250 fftw_real tmp63;
251 ASSERT_ALIGNED_DOUBLE;
252 tmp57 = tmp17 - tmp20;
253 tmp67 = (K173648177 * tmp59) - (K984807753 * tmp58);
254 tmp68 = (K342020143 * tmp62) + (K939692620 * tmp61);
255 tmp69 = tmp67 - tmp68;
256 tmp72 = K866025403 * (tmp67 + tmp68);
257 tmp66 = tmp53 - tmp50;
258 tmp60 = (K173648177 * tmp58) + (K984807753 * tmp59);
259 tmp63 = (K342020143 * tmp61) - (K939692620 * tmp62);
260 tmp64 = tmp60 + tmp63;
261 tmp65 = K866025403 * (tmp63 - tmp60);
262 }
263 c_re(output[2 * ostride]) = tmp57 + tmp64;
264 tmp71 = tmp57 - (K500000000 * tmp64);
265 c_re(output[8 * ostride]) = tmp71 - tmp72;
266 c_re(output[5 * ostride]) = tmp71 + tmp72;
267 c_im(output[2 * ostride]) = tmp66 + tmp69;
268 tmp70 = tmp66 - (K500000000 * tmp69);
269 c_im(output[5 * ostride]) = tmp65 + tmp70;
270 c_im(output[8 * ostride]) = tmp70 - tmp65;
271 }
272 }
273
274 fftw_codelet_desc fftw_no_twiddle_9_desc = {
275 "fftw_no_twiddle_9",
276 (void (*)()) fftw_no_twiddle_9,
277 9,
278 FFTW_FORWARD,
279 FFTW_NOTW,
280 199,
281 0,
282 (const int *) 0,
283 };
fftw_codelet_desc
Definition: fftw.h:126
fftw-int.h
fftw_complex
Definition: fftw.h:57
FFTW_KONST
#define FFTW_KONST(x)
Definition: fftw-int.h:178
fftw.h
fftw_no_twiddle_9
void fftw_no_twiddle_9(const fftw_complex *input, fftw_complex *output, int istride, int ostride)
Definition: fn_9.c:57
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_FORWARD
Definition: fftw.h:64
fftw_no_twiddle_9_desc
fftw_codelet_desc fftw_no_twiddle_9_desc
Definition: fn_9.c:274