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644cb69f | 1 | /* Implementation of the PRODUCT intrinsic |
36ae8a61 | 2 | Copyright 2002, 2007 Free Software Foundation, Inc. |
644cb69f FXC |
3 | Contributed by Paul Brook <paul@nowt.org> |
4 | ||
5 | This file is part of the GNU Fortran 95 runtime library (libgfortran). | |
6 | ||
7 | Libgfortran is free software; you can redistribute it and/or | |
8 | modify it under the terms of the GNU General Public | |
9 | License as published by the Free Software Foundation; either | |
10 | version 2 of the License, or (at your option) any later version. | |
11 | ||
12 | In addition to the permissions in the GNU General Public License, the | |
13 | Free Software Foundation gives you unlimited permission to link the | |
14 | compiled version of this file into combinations with other programs, | |
15 | and to distribute those combinations without any restriction coming | |
16 | from the use of this file. (The General Public License restrictions | |
17 | do apply in other respects; for example, they cover modification of | |
18 | the file, and distribution when not linked into a combine | |
19 | executable.) | |
20 | ||
21 | Libgfortran is distributed in the hope that it will be useful, | |
22 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
23 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
24 | GNU General Public License for more details. | |
25 | ||
26 | You should have received a copy of the GNU General Public | |
27 | License along with libgfortran; see the file COPYING. If not, | |
28 | write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
29 | Boston, MA 02110-1301, USA. */ | |
30 | ||
36ae8a61 | 31 | #include "libgfortran.h" |
644cb69f FXC |
32 | #include <stdlib.h> |
33 | #include <assert.h> | |
644cb69f FXC |
34 | |
35 | ||
36 | #if defined (HAVE_GFC_INTEGER_16) && defined (HAVE_GFC_INTEGER_16) | |
37 | ||
38 | ||
64acfd99 JB |
39 | extern void product_i16 (gfc_array_i16 * const restrict, |
40 | gfc_array_i16 * const restrict, const index_type * const restrict); | |
644cb69f FXC |
41 | export_proto(product_i16); |
42 | ||
43 | void | |
64acfd99 JB |
44 | product_i16 (gfc_array_i16 * const restrict retarray, |
45 | gfc_array_i16 * const restrict array, | |
46 | const index_type * const restrict pdim) | |
644cb69f FXC |
47 | { |
48 | index_type count[GFC_MAX_DIMENSIONS]; | |
49 | index_type extent[GFC_MAX_DIMENSIONS]; | |
50 | index_type sstride[GFC_MAX_DIMENSIONS]; | |
51 | index_type dstride[GFC_MAX_DIMENSIONS]; | |
64acfd99 JB |
52 | const GFC_INTEGER_16 * restrict base; |
53 | GFC_INTEGER_16 * restrict dest; | |
644cb69f FXC |
54 | index_type rank; |
55 | index_type n; | |
56 | index_type len; | |
57 | index_type delta; | |
58 | index_type dim; | |
59 | ||
60 | /* Make dim zero based to avoid confusion. */ | |
61 | dim = (*pdim) - 1; | |
62 | rank = GFC_DESCRIPTOR_RANK (array) - 1; | |
63 | ||
644cb69f FXC |
64 | len = array->dim[dim].ubound + 1 - array->dim[dim].lbound; |
65 | delta = array->dim[dim].stride; | |
66 | ||
67 | for (n = 0; n < dim; n++) | |
68 | { | |
69 | sstride[n] = array->dim[n].stride; | |
70 | extent[n] = array->dim[n].ubound + 1 - array->dim[n].lbound; | |
80ee04b9 TK |
71 | |
72 | if (extent[n] < 0) | |
73 | extent[n] = 0; | |
644cb69f FXC |
74 | } |
75 | for (n = dim; n < rank; n++) | |
76 | { | |
77 | sstride[n] = array->dim[n + 1].stride; | |
78 | extent[n] = | |
79 | array->dim[n + 1].ubound + 1 - array->dim[n + 1].lbound; | |
80ee04b9 TK |
80 | |
81 | if (extent[n] < 0) | |
82 | extent[n] = 0; | |
644cb69f FXC |
83 | } |
84 | ||
85 | if (retarray->data == NULL) | |
86 | { | |
80ee04b9 TK |
87 | size_t alloc_size; |
88 | ||
644cb69f FXC |
89 | for (n = 0; n < rank; n++) |
90 | { | |
91 | retarray->dim[n].lbound = 0; | |
92 | retarray->dim[n].ubound = extent[n]-1; | |
93 | if (n == 0) | |
94 | retarray->dim[n].stride = 1; | |
95 | else | |
96 | retarray->dim[n].stride = retarray->dim[n-1].stride * extent[n-1]; | |
97 | } | |
98 | ||
644cb69f FXC |
99 | retarray->offset = 0; |
100 | retarray->dtype = (array->dtype & ~GFC_DTYPE_RANK_MASK) | rank; | |
80ee04b9 TK |
101 | |
102 | alloc_size = sizeof (GFC_INTEGER_16) * retarray->dim[rank-1].stride | |
103 | * extent[rank-1]; | |
104 | ||
105 | if (alloc_size == 0) | |
106 | { | |
107 | /* Make sure we have a zero-sized array. */ | |
108 | retarray->dim[0].lbound = 0; | |
109 | retarray->dim[0].ubound = -1; | |
110 | return; | |
111 | } | |
112 | else | |
113 | retarray->data = internal_malloc_size (alloc_size); | |
644cb69f FXC |
114 | } |
115 | else | |
116 | { | |
644cb69f FXC |
117 | if (rank != GFC_DESCRIPTOR_RANK (retarray)) |
118 | runtime_error ("rank of return array incorrect"); | |
119 | } | |
120 | ||
121 | for (n = 0; n < rank; n++) | |
122 | { | |
123 | count[n] = 0; | |
124 | dstride[n] = retarray->dim[n].stride; | |
125 | if (extent[n] <= 0) | |
126 | len = 0; | |
127 | } | |
128 | ||
129 | base = array->data; | |
130 | dest = retarray->data; | |
131 | ||
132 | while (base) | |
133 | { | |
64acfd99 | 134 | const GFC_INTEGER_16 * restrict src; |
644cb69f FXC |
135 | GFC_INTEGER_16 result; |
136 | src = base; | |
137 | { | |
138 | ||
139 | result = 1; | |
140 | if (len <= 0) | |
141 | *dest = 1; | |
142 | else | |
143 | { | |
144 | for (n = 0; n < len; n++, src += delta) | |
145 | { | |
146 | ||
147 | result *= *src; | |
148 | } | |
149 | *dest = result; | |
150 | } | |
151 | } | |
152 | /* Advance to the next element. */ | |
153 | count[0]++; | |
154 | base += sstride[0]; | |
155 | dest += dstride[0]; | |
156 | n = 0; | |
157 | while (count[n] == extent[n]) | |
158 | { | |
159 | /* When we get to the end of a dimension, reset it and increment | |
160 | the next dimension. */ | |
161 | count[n] = 0; | |
162 | /* We could precalculate these products, but this is a less | |
5d7adf7a | 163 | frequently used path so probably not worth it. */ |
644cb69f FXC |
164 | base -= sstride[n] * extent[n]; |
165 | dest -= dstride[n] * extent[n]; | |
166 | n++; | |
167 | if (n == rank) | |
168 | { | |
169 | /* Break out of the look. */ | |
170 | base = NULL; | |
171 | break; | |
172 | } | |
173 | else | |
174 | { | |
175 | count[n]++; | |
176 | base += sstride[n]; | |
177 | dest += dstride[n]; | |
178 | } | |
179 | } | |
180 | } | |
181 | } | |
182 | ||
183 | ||
64acfd99 JB |
184 | extern void mproduct_i16 (gfc_array_i16 * const restrict, |
185 | gfc_array_i16 * const restrict, const index_type * const restrict, | |
28dc6b33 | 186 | gfc_array_l1 * const restrict); |
644cb69f FXC |
187 | export_proto(mproduct_i16); |
188 | ||
189 | void | |
64acfd99 JB |
190 | mproduct_i16 (gfc_array_i16 * const restrict retarray, |
191 | gfc_array_i16 * const restrict array, | |
192 | const index_type * const restrict pdim, | |
28dc6b33 | 193 | gfc_array_l1 * const restrict mask) |
644cb69f FXC |
194 | { |
195 | index_type count[GFC_MAX_DIMENSIONS]; | |
196 | index_type extent[GFC_MAX_DIMENSIONS]; | |
197 | index_type sstride[GFC_MAX_DIMENSIONS]; | |
198 | index_type dstride[GFC_MAX_DIMENSIONS]; | |
199 | index_type mstride[GFC_MAX_DIMENSIONS]; | |
64acfd99 JB |
200 | GFC_INTEGER_16 * restrict dest; |
201 | const GFC_INTEGER_16 * restrict base; | |
28dc6b33 | 202 | const GFC_LOGICAL_1 * restrict mbase; |
644cb69f FXC |
203 | int rank; |
204 | int dim; | |
205 | index_type n; | |
206 | index_type len; | |
207 | index_type delta; | |
208 | index_type mdelta; | |
28dc6b33 | 209 | int mask_kind; |
644cb69f FXC |
210 | |
211 | dim = (*pdim) - 1; | |
212 | rank = GFC_DESCRIPTOR_RANK (array) - 1; | |
213 | ||
644cb69f FXC |
214 | len = array->dim[dim].ubound + 1 - array->dim[dim].lbound; |
215 | if (len <= 0) | |
216 | return; | |
28dc6b33 TK |
217 | |
218 | mbase = mask->data; | |
219 | ||
220 | mask_kind = GFC_DESCRIPTOR_SIZE (mask); | |
221 | ||
222 | if (mask_kind == 1 || mask_kind == 2 || mask_kind == 4 || mask_kind == 8 | |
223 | #ifdef HAVE_GFC_LOGICAL_16 | |
224 | || mask_kind == 16 | |
225 | #endif | |
226 | ) | |
227 | mbase = GFOR_POINTER_TO_L1 (mbase, mask_kind); | |
228 | else | |
229 | runtime_error ("Funny sized logical array"); | |
230 | ||
644cb69f | 231 | delta = array->dim[dim].stride; |
28dc6b33 | 232 | mdelta = mask->dim[dim].stride * mask_kind; |
644cb69f FXC |
233 | |
234 | for (n = 0; n < dim; n++) | |
235 | { | |
236 | sstride[n] = array->dim[n].stride; | |
28dc6b33 | 237 | mstride[n] = mask->dim[n].stride * mask_kind; |
644cb69f | 238 | extent[n] = array->dim[n].ubound + 1 - array->dim[n].lbound; |
80ee04b9 TK |
239 | |
240 | if (extent[n] < 0) | |
241 | extent[n] = 0; | |
242 | ||
644cb69f FXC |
243 | } |
244 | for (n = dim; n < rank; n++) | |
245 | { | |
246 | sstride[n] = array->dim[n + 1].stride; | |
28dc6b33 | 247 | mstride[n] = mask->dim[n + 1].stride * mask_kind; |
644cb69f FXC |
248 | extent[n] = |
249 | array->dim[n + 1].ubound + 1 - array->dim[n + 1].lbound; | |
80ee04b9 TK |
250 | |
251 | if (extent[n] < 0) | |
252 | extent[n] = 0; | |
644cb69f FXC |
253 | } |
254 | ||
255 | if (retarray->data == NULL) | |
256 | { | |
80ee04b9 TK |
257 | size_t alloc_size; |
258 | ||
644cb69f FXC |
259 | for (n = 0; n < rank; n++) |
260 | { | |
261 | retarray->dim[n].lbound = 0; | |
262 | retarray->dim[n].ubound = extent[n]-1; | |
263 | if (n == 0) | |
264 | retarray->dim[n].stride = 1; | |
265 | else | |
266 | retarray->dim[n].stride = retarray->dim[n-1].stride * extent[n-1]; | |
267 | } | |
268 | ||
80ee04b9 TK |
269 | alloc_size = sizeof (GFC_INTEGER_16) * retarray->dim[rank-1].stride |
270 | * extent[rank-1]; | |
271 | ||
644cb69f FXC |
272 | retarray->offset = 0; |
273 | retarray->dtype = (array->dtype & ~GFC_DTYPE_RANK_MASK) | rank; | |
80ee04b9 TK |
274 | |
275 | if (alloc_size == 0) | |
276 | { | |
277 | /* Make sure we have a zero-sized array. */ | |
278 | retarray->dim[0].lbound = 0; | |
279 | retarray->dim[0].ubound = -1; | |
280 | return; | |
281 | } | |
282 | else | |
283 | retarray->data = internal_malloc_size (alloc_size); | |
284 | ||
644cb69f FXC |
285 | } |
286 | else | |
287 | { | |
644cb69f FXC |
288 | if (rank != GFC_DESCRIPTOR_RANK (retarray)) |
289 | runtime_error ("rank of return array incorrect"); | |
290 | } | |
291 | ||
292 | for (n = 0; n < rank; n++) | |
293 | { | |
294 | count[n] = 0; | |
295 | dstride[n] = retarray->dim[n].stride; | |
296 | if (extent[n] <= 0) | |
297 | return; | |
298 | } | |
299 | ||
300 | dest = retarray->data; | |
301 | base = array->data; | |
644cb69f FXC |
302 | |
303 | while (base) | |
304 | { | |
64acfd99 | 305 | const GFC_INTEGER_16 * restrict src; |
28dc6b33 | 306 | const GFC_LOGICAL_1 * restrict msrc; |
644cb69f FXC |
307 | GFC_INTEGER_16 result; |
308 | src = base; | |
309 | msrc = mbase; | |
310 | { | |
311 | ||
312 | result = 1; | |
313 | if (len <= 0) | |
314 | *dest = 1; | |
315 | else | |
316 | { | |
317 | for (n = 0; n < len; n++, src += delta, msrc += mdelta) | |
318 | { | |
319 | ||
320 | if (*msrc) | |
321 | result *= *src; | |
322 | } | |
323 | *dest = result; | |
324 | } | |
325 | } | |
326 | /* Advance to the next element. */ | |
327 | count[0]++; | |
328 | base += sstride[0]; | |
329 | mbase += mstride[0]; | |
330 | dest += dstride[0]; | |
331 | n = 0; | |
332 | while (count[n] == extent[n]) | |
333 | { | |
334 | /* When we get to the end of a dimension, reset it and increment | |
335 | the next dimension. */ | |
336 | count[n] = 0; | |
337 | /* We could precalculate these products, but this is a less | |
5d7adf7a | 338 | frequently used path so probably not worth it. */ |
644cb69f FXC |
339 | base -= sstride[n] * extent[n]; |
340 | mbase -= mstride[n] * extent[n]; | |
341 | dest -= dstride[n] * extent[n]; | |
342 | n++; | |
343 | if (n == rank) | |
344 | { | |
345 | /* Break out of the look. */ | |
346 | base = NULL; | |
347 | break; | |
348 | } | |
349 | else | |
350 | { | |
351 | count[n]++; | |
352 | base += sstride[n]; | |
353 | mbase += mstride[n]; | |
354 | dest += dstride[n]; | |
355 | } | |
356 | } | |
357 | } | |
358 | } | |
359 | ||
97a62038 TK |
360 | |
361 | extern void sproduct_i16 (gfc_array_i16 * const restrict, | |
362 | gfc_array_i16 * const restrict, const index_type * const restrict, | |
363 | GFC_LOGICAL_4 *); | |
364 | export_proto(sproduct_i16); | |
365 | ||
366 | void | |
367 | sproduct_i16 (gfc_array_i16 * const restrict retarray, | |
368 | gfc_array_i16 * const restrict array, | |
369 | const index_type * const restrict pdim, | |
370 | GFC_LOGICAL_4 * mask) | |
371 | { | |
372 | index_type rank; | |
373 | index_type n; | |
374 | index_type dstride; | |
375 | GFC_INTEGER_16 *dest; | |
376 | ||
377 | if (*mask) | |
378 | { | |
379 | product_i16 (retarray, array, pdim); | |
380 | return; | |
381 | } | |
382 | rank = GFC_DESCRIPTOR_RANK (array); | |
383 | if (rank <= 0) | |
384 | runtime_error ("Rank of array needs to be > 0"); | |
385 | ||
386 | if (retarray->data == NULL) | |
387 | { | |
388 | retarray->dim[0].lbound = 0; | |
389 | retarray->dim[0].ubound = rank-1; | |
390 | retarray->dim[0].stride = 1; | |
391 | retarray->dtype = (retarray->dtype & ~GFC_DTYPE_RANK_MASK) | 1; | |
392 | retarray->offset = 0; | |
393 | retarray->data = internal_malloc_size (sizeof (GFC_INTEGER_16) * rank); | |
394 | } | |
395 | else | |
396 | { | |
397 | if (GFC_DESCRIPTOR_RANK (retarray) != 1) | |
398 | runtime_error ("rank of return array does not equal 1"); | |
399 | ||
400 | if (retarray->dim[0].ubound + 1 - retarray->dim[0].lbound != rank) | |
401 | runtime_error ("dimension of return array incorrect"); | |
97a62038 TK |
402 | } |
403 | ||
404 | dstride = retarray->dim[0].stride; | |
405 | dest = retarray->data; | |
406 | ||
407 | for (n = 0; n < rank; n++) | |
408 | dest[n * dstride] = 1 ; | |
409 | } | |
410 | ||
644cb69f | 411 | #endif |