]>
Commit | Line | Data |
---|---|---|
644cb69f | 1 | /* Implementation of the MINLOC intrinsic |
83ffe9cd | 2 | Copyright (C) 2002-2023 Free Software Foundation, Inc. |
644cb69f FXC |
3 | Contributed by Paul Brook <paul@nowt.org> |
4 | ||
0cd0559e | 5 | This file is part of the GNU Fortran runtime library (libgfortran). |
644cb69f FXC |
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 | |
748086b7 | 10 | version 3 of the License, or (at your option) any later version. |
644cb69f FXC |
11 | |
12 | Libgfortran is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
748086b7 JJ |
17 | Under Section 7 of GPL version 3, you are granted additional |
18 | permissions described in the GCC Runtime Library Exception, version | |
19 | 3.1, as published by the Free Software Foundation. | |
20 | ||
21 | You should have received a copy of the GNU General Public License and | |
22 | a copy of the GCC Runtime Library Exception along with this program; | |
23 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
24 | <http://www.gnu.org/licenses/>. */ | |
644cb69f | 25 | |
36ae8a61 | 26 | #include "libgfortran.h" |
64b1806b | 27 | #include <assert.h> |
644cb69f FXC |
28 | |
29 | ||
30 | #if defined (HAVE_GFC_REAL_8) && defined (HAVE_GFC_INTEGER_16) | |
31 | ||
64b1806b TK |
32 | #define HAVE_BACK_ARG 1 |
33 | ||
644cb69f | 34 | |
64acfd99 | 35 | extern void minloc1_16_r8 (gfc_array_i16 * const restrict, |
64b1806b | 36 | gfc_array_r8 * const restrict, const index_type * const restrict, GFC_LOGICAL_4 back); |
644cb69f FXC |
37 | export_proto(minloc1_16_r8); |
38 | ||
39 | void | |
64acfd99 JB |
40 | minloc1_16_r8 (gfc_array_i16 * const restrict retarray, |
41 | gfc_array_r8 * const restrict array, | |
64b1806b | 42 | const index_type * const restrict pdim, GFC_LOGICAL_4 back) |
644cb69f FXC |
43 | { |
44 | index_type count[GFC_MAX_DIMENSIONS]; | |
45 | index_type extent[GFC_MAX_DIMENSIONS]; | |
46 | index_type sstride[GFC_MAX_DIMENSIONS]; | |
47 | index_type dstride[GFC_MAX_DIMENSIONS]; | |
64acfd99 JB |
48 | const GFC_REAL_8 * restrict base; |
49 | GFC_INTEGER_16 * restrict dest; | |
644cb69f FXC |
50 | index_type rank; |
51 | index_type n; | |
52 | index_type len; | |
53 | index_type delta; | |
54 | index_type dim; | |
da96f5ab | 55 | int continue_loop; |
644cb69f FXC |
56 | |
57 | /* Make dim zero based to avoid confusion. */ | |
644cb69f | 58 | rank = GFC_DESCRIPTOR_RANK (array) - 1; |
cfdf6ff6 TK |
59 | dim = (*pdim) - 1; |
60 | ||
61 | if (unlikely (dim < 0 || dim > rank)) | |
62 | { | |
63 | runtime_error ("Dim argument incorrect in MINLOC intrinsic: " | |
64 | "is %ld, should be between 1 and %ld", | |
65 | (long int) dim + 1, (long int) rank + 1); | |
66 | } | |
644cb69f | 67 | |
dfb55fdc | 68 | len = GFC_DESCRIPTOR_EXTENT(array,dim); |
da96f5ab TK |
69 | if (len < 0) |
70 | len = 0; | |
dfb55fdc | 71 | delta = GFC_DESCRIPTOR_STRIDE(array,dim); |
644cb69f FXC |
72 | |
73 | for (n = 0; n < dim; n++) | |
74 | { | |
dfb55fdc TK |
75 | sstride[n] = GFC_DESCRIPTOR_STRIDE(array,n); |
76 | extent[n] = GFC_DESCRIPTOR_EXTENT(array,n); | |
80ee04b9 TK |
77 | |
78 | if (extent[n] < 0) | |
79 | extent[n] = 0; | |
644cb69f FXC |
80 | } |
81 | for (n = dim; n < rank; n++) | |
82 | { | |
dfb55fdc TK |
83 | sstride[n] = GFC_DESCRIPTOR_STRIDE(array, n + 1); |
84 | extent[n] = GFC_DESCRIPTOR_EXTENT(array, n + 1); | |
80ee04b9 TK |
85 | |
86 | if (extent[n] < 0) | |
87 | extent[n] = 0; | |
644cb69f FXC |
88 | } |
89 | ||
21d1335b | 90 | if (retarray->base_addr == NULL) |
644cb69f | 91 | { |
dfb55fdc | 92 | size_t alloc_size, str; |
80ee04b9 | 93 | |
644cb69f | 94 | for (n = 0; n < rank; n++) |
80927a56 JJ |
95 | { |
96 | if (n == 0) | |
dfb55fdc | 97 | str = 1; |
80927a56 JJ |
98 | else |
99 | str = GFC_DESCRIPTOR_STRIDE(retarray,n-1) * extent[n-1]; | |
dfb55fdc TK |
100 | |
101 | GFC_DIMENSION_SET(retarray->dim[n], 0, extent[n] - 1, str); | |
102 | ||
80927a56 | 103 | } |
644cb69f | 104 | |
644cb69f | 105 | retarray->offset = 0; |
ca708a2b | 106 | retarray->dtype.rank = rank; |
80ee04b9 | 107 | |
92e6f3a4 | 108 | alloc_size = GFC_DESCRIPTOR_STRIDE(retarray,rank-1) * extent[rank-1]; |
80ee04b9 | 109 | |
92e6f3a4 | 110 | retarray->base_addr = xmallocarray (alloc_size, sizeof (GFC_INTEGER_16)); |
80ee04b9 TK |
111 | if (alloc_size == 0) |
112 | { | |
113 | /* Make sure we have a zero-sized array. */ | |
dfb55fdc | 114 | GFC_DIMENSION_SET(retarray->dim[0], 0, -1, 1); |
80ee04b9 | 115 | return; |
dfb55fdc | 116 | |
80ee04b9 | 117 | } |
644cb69f FXC |
118 | } |
119 | else | |
120 | { | |
644cb69f | 121 | if (rank != GFC_DESCRIPTOR_RANK (retarray)) |
fd6590f8 | 122 | runtime_error ("rank of return array incorrect in" |
ccacefc7 TK |
123 | " MINLOC intrinsic: is %ld, should be %ld", |
124 | (long int) (GFC_DESCRIPTOR_RANK (retarray)), | |
125 | (long int) rank); | |
fd6590f8 | 126 | |
9731c4a3 | 127 | if (unlikely (compile_options.bounds_check)) |
16bff921 TK |
128 | bounds_ifunction_return ((array_t *) retarray, extent, |
129 | "return value", "MINLOC"); | |
644cb69f FXC |
130 | } |
131 | ||
132 | for (n = 0; n < rank; n++) | |
133 | { | |
134 | count[n] = 0; | |
dfb55fdc | 135 | dstride[n] = GFC_DESCRIPTOR_STRIDE(retarray,n); |
644cb69f | 136 | if (extent[n] <= 0) |
facc1285 | 137 | return; |
644cb69f FXC |
138 | } |
139 | ||
21d1335b TB |
140 | base = array->base_addr; |
141 | dest = retarray->base_addr; | |
644cb69f | 142 | |
da96f5ab TK |
143 | continue_loop = 1; |
144 | while (continue_loop) | |
644cb69f | 145 | { |
64acfd99 | 146 | const GFC_REAL_8 * restrict src; |
644cb69f FXC |
147 | GFC_INTEGER_16 result; |
148 | src = base; | |
149 | { | |
150 | ||
80927a56 JJ |
151 | GFC_REAL_8 minval; |
152 | #if defined (GFC_REAL_8_INFINITY) | |
153 | minval = GFC_REAL_8_INFINITY; | |
154 | #else | |
155 | minval = GFC_REAL_8_HUGE; | |
156 | #endif | |
157 | result = 1; | |
158 | if (len <= 0) | |
644cb69f FXC |
159 | *dest = 0; |
160 | else | |
161 | { | |
b573f931 | 162 | #if ! defined HAVE_BACK_ARG |
644cb69f FXC |
163 | for (n = 0; n < len; n++, src += delta) |
164 | { | |
b573f931 | 165 | #endif |
644cb69f | 166 | |
80927a56 | 167 | #if defined (GFC_REAL_8_QUIET_NAN) |
b573f931 TK |
168 | for (n = 0; n < len; n++, src += delta) |
169 | { | |
80927a56 JJ |
170 | if (*src <= minval) |
171 | { | |
172 | minval = *src; | |
173 | result = (GFC_INTEGER_16)n + 1; | |
174 | break; | |
175 | } | |
176 | } | |
b573f931 TK |
177 | #else |
178 | n = 0; | |
80927a56 | 179 | #endif |
b573f931 TK |
180 | if (back) |
181 | for (; n < len; n++, src += delta) | |
182 | { | |
183 | if (unlikely (*src <= minval)) | |
184 | { | |
185 | minval = *src; | |
186 | result = (GFC_INTEGER_16)n + 1; | |
187 | } | |
188 | } | |
189 | else | |
190 | for (; n < len; n++, src += delta) | |
191 | { | |
192 | if (unlikely (*src < minval)) | |
193 | { | |
194 | minval = *src; | |
195 | result = (GFC_INTEGER_16) n + 1; | |
196 | } | |
80927a56 | 197 | } |
0cd0559e | 198 | |
644cb69f FXC |
199 | *dest = result; |
200 | } | |
201 | } | |
202 | /* Advance to the next element. */ | |
203 | count[0]++; | |
204 | base += sstride[0]; | |
205 | dest += dstride[0]; | |
206 | n = 0; | |
207 | while (count[n] == extent[n]) | |
80927a56 JJ |
208 | { |
209 | /* When we get to the end of a dimension, reset it and increment | |
210 | the next dimension. */ | |
211 | count[n] = 0; | |
212 | /* We could precalculate these products, but this is a less | |
213 | frequently used path so probably not worth it. */ | |
214 | base -= sstride[n] * extent[n]; | |
215 | dest -= dstride[n] * extent[n]; | |
216 | n++; | |
80dd631f | 217 | if (n >= rank) |
80927a56 | 218 | { |
80dd631f | 219 | /* Break out of the loop. */ |
da96f5ab TK |
220 | continue_loop = 0; |
221 | break; | |
80927a56 JJ |
222 | } |
223 | else | |
224 | { | |
225 | count[n]++; | |
226 | base += sstride[n]; | |
227 | dest += dstride[n]; | |
228 | } | |
229 | } | |
644cb69f FXC |
230 | } |
231 | } | |
232 | ||
233 | ||
64acfd99 JB |
234 | extern void mminloc1_16_r8 (gfc_array_i16 * const restrict, |
235 | gfc_array_r8 * const restrict, const index_type * const restrict, | |
64b1806b | 236 | gfc_array_l1 * const restrict, GFC_LOGICAL_4 back); |
644cb69f FXC |
237 | export_proto(mminloc1_16_r8); |
238 | ||
239 | void | |
64acfd99 JB |
240 | mminloc1_16_r8 (gfc_array_i16 * const restrict retarray, |
241 | gfc_array_r8 * const restrict array, | |
242 | const index_type * const restrict pdim, | |
64b1806b | 243 | gfc_array_l1 * const restrict mask, GFC_LOGICAL_4 back) |
644cb69f FXC |
244 | { |
245 | index_type count[GFC_MAX_DIMENSIONS]; | |
246 | index_type extent[GFC_MAX_DIMENSIONS]; | |
247 | index_type sstride[GFC_MAX_DIMENSIONS]; | |
248 | index_type dstride[GFC_MAX_DIMENSIONS]; | |
249 | index_type mstride[GFC_MAX_DIMENSIONS]; | |
64acfd99 JB |
250 | GFC_INTEGER_16 * restrict dest; |
251 | const GFC_REAL_8 * restrict base; | |
28dc6b33 | 252 | const GFC_LOGICAL_1 * restrict mbase; |
cfdf6ff6 TK |
253 | index_type rank; |
254 | index_type dim; | |
644cb69f FXC |
255 | index_type n; |
256 | index_type len; | |
257 | index_type delta; | |
258 | index_type mdelta; | |
28dc6b33 | 259 | int mask_kind; |
644cb69f | 260 | |
2ea47ee9 TK |
261 | if (mask == NULL) |
262 | { | |
263 | #ifdef HAVE_BACK_ARG | |
264 | minloc1_16_r8 (retarray, array, pdim, back); | |
265 | #else | |
266 | minloc1_16_r8 (retarray, array, pdim); | |
267 | #endif | |
268 | return; | |
269 | } | |
270 | ||
644cb69f FXC |
271 | dim = (*pdim) - 1; |
272 | rank = GFC_DESCRIPTOR_RANK (array) - 1; | |
273 | ||
cfdf6ff6 TK |
274 | |
275 | if (unlikely (dim < 0 || dim > rank)) | |
276 | { | |
277 | runtime_error ("Dim argument incorrect in MINLOC intrinsic: " | |
278 | "is %ld, should be between 1 and %ld", | |
279 | (long int) dim + 1, (long int) rank + 1); | |
280 | } | |
281 | ||
dfb55fdc | 282 | len = GFC_DESCRIPTOR_EXTENT(array,dim); |
85a96881 MM |
283 | if (len < 0) |
284 | len = 0; | |
28dc6b33 | 285 | |
21d1335b | 286 | mbase = mask->base_addr; |
28dc6b33 TK |
287 | |
288 | mask_kind = GFC_DESCRIPTOR_SIZE (mask); | |
289 | ||
290 | if (mask_kind == 1 || mask_kind == 2 || mask_kind == 4 || mask_kind == 8 | |
291 | #ifdef HAVE_GFC_LOGICAL_16 | |
292 | || mask_kind == 16 | |
293 | #endif | |
294 | ) | |
295 | mbase = GFOR_POINTER_TO_L1 (mbase, mask_kind); | |
296 | else | |
297 | runtime_error ("Funny sized logical array"); | |
298 | ||
dfb55fdc TK |
299 | delta = GFC_DESCRIPTOR_STRIDE(array,dim); |
300 | mdelta = GFC_DESCRIPTOR_STRIDE_BYTES(mask,dim); | |
644cb69f FXC |
301 | |
302 | for (n = 0; n < dim; n++) | |
303 | { | |
dfb55fdc TK |
304 | sstride[n] = GFC_DESCRIPTOR_STRIDE(array,n); |
305 | mstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(mask,n); | |
306 | extent[n] = GFC_DESCRIPTOR_EXTENT(array,n); | |
80ee04b9 TK |
307 | |
308 | if (extent[n] < 0) | |
309 | extent[n] = 0; | |
310 | ||
644cb69f FXC |
311 | } |
312 | for (n = dim; n < rank; n++) | |
313 | { | |
dfb55fdc TK |
314 | sstride[n] = GFC_DESCRIPTOR_STRIDE(array,n + 1); |
315 | mstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(mask, n + 1); | |
316 | extent[n] = GFC_DESCRIPTOR_EXTENT(array, n + 1); | |
80ee04b9 TK |
317 | |
318 | if (extent[n] < 0) | |
319 | extent[n] = 0; | |
644cb69f FXC |
320 | } |
321 | ||
21d1335b | 322 | if (retarray->base_addr == NULL) |
644cb69f | 323 | { |
dfb55fdc | 324 | size_t alloc_size, str; |
80ee04b9 | 325 | |
644cb69f | 326 | for (n = 0; n < rank; n++) |
80927a56 JJ |
327 | { |
328 | if (n == 0) | |
329 | str = 1; | |
330 | else | |
331 | str= GFC_DESCRIPTOR_STRIDE(retarray,n-1) * extent[n-1]; | |
dfb55fdc TK |
332 | |
333 | GFC_DIMENSION_SET(retarray->dim[n], 0, extent[n] - 1, str); | |
334 | ||
80927a56 | 335 | } |
644cb69f | 336 | |
92e6f3a4 | 337 | alloc_size = GFC_DESCRIPTOR_STRIDE(retarray,rank-1) * extent[rank-1]; |
80ee04b9 | 338 | |
644cb69f | 339 | retarray->offset = 0; |
ca708a2b | 340 | retarray->dtype.rank = rank; |
80ee04b9 | 341 | |
d56bf419 | 342 | retarray->base_addr = xmallocarray (alloc_size, sizeof (GFC_INTEGER_16)); |
80ee04b9 TK |
343 | if (alloc_size == 0) |
344 | { | |
345 | /* Make sure we have a zero-sized array. */ | |
dfb55fdc | 346 | GFC_DIMENSION_SET(retarray->dim[0], 0, -1, 1); |
80ee04b9 TK |
347 | return; |
348 | } | |
644cb69f FXC |
349 | } |
350 | else | |
351 | { | |
644cb69f | 352 | if (rank != GFC_DESCRIPTOR_RANK (retarray)) |
fd6590f8 TK |
353 | runtime_error ("rank of return array incorrect in MINLOC intrinsic"); |
354 | ||
9731c4a3 | 355 | if (unlikely (compile_options.bounds_check)) |
fd6590f8 | 356 | { |
16bff921 TK |
357 | bounds_ifunction_return ((array_t *) retarray, extent, |
358 | "return value", "MINLOC"); | |
359 | bounds_equal_extents ((array_t *) mask, (array_t *) array, | |
360 | "MASK argument", "MINLOC"); | |
fd6590f8 | 361 | } |
644cb69f FXC |
362 | } |
363 | ||
364 | for (n = 0; n < rank; n++) | |
365 | { | |
366 | count[n] = 0; | |
dfb55fdc | 367 | dstride[n] = GFC_DESCRIPTOR_STRIDE(retarray,n); |
644cb69f | 368 | if (extent[n] <= 0) |
80927a56 | 369 | return; |
644cb69f FXC |
370 | } |
371 | ||
21d1335b TB |
372 | dest = retarray->base_addr; |
373 | base = array->base_addr; | |
644cb69f FXC |
374 | |
375 | while (base) | |
376 | { | |
64acfd99 | 377 | const GFC_REAL_8 * restrict src; |
28dc6b33 | 378 | const GFC_LOGICAL_1 * restrict msrc; |
644cb69f FXC |
379 | GFC_INTEGER_16 result; |
380 | src = base; | |
381 | msrc = mbase; | |
382 | { | |
383 | ||
80927a56 JJ |
384 | GFC_REAL_8 minval; |
385 | #if defined (GFC_REAL_8_INFINITY) | |
386 | minval = GFC_REAL_8_INFINITY; | |
387 | #else | |
388 | minval = GFC_REAL_8_HUGE; | |
389 | #endif | |
390 | #if defined (GFC_REAL_8_QUIET_NAN) | |
391 | GFC_INTEGER_16 result2 = 0; | |
392 | #endif | |
393 | result = 0; | |
036e1775 | 394 | for (n = 0; n < len; n++, src += delta, msrc += mdelta) |
644cb69f | 395 | { |
644cb69f | 396 | |
80927a56 JJ |
397 | if (*msrc) |
398 | { | |
399 | #if defined (GFC_REAL_8_QUIET_NAN) | |
400 | if (!result2) | |
401 | result2 = (GFC_INTEGER_16)n + 1; | |
402 | if (*src <= minval) | |
403 | #endif | |
404 | { | |
405 | minval = *src; | |
406 | result = (GFC_INTEGER_16)n + 1; | |
407 | break; | |
408 | } | |
409 | } | |
410 | } | |
411 | #if defined (GFC_REAL_8_QUIET_NAN) | |
412 | if (unlikely (n >= len)) | |
413 | result = result2; | |
414 | else | |
415 | #endif | |
b573f931 TK |
416 | if (back) |
417 | for (; n < len; n++, src += delta, msrc += mdelta) | |
418 | { | |
419 | if (*msrc && unlikely (*src <= minval)) | |
420 | { | |
421 | minval = *src; | |
422 | result = (GFC_INTEGER_16)n + 1; | |
423 | } | |
424 | } | |
425 | else | |
426 | for (; n < len; n++, src += delta, msrc += mdelta) | |
80927a56 | 427 | { |
b573f931 TK |
428 | if (*msrc && unlikely (*src < minval)) |
429 | { | |
430 | minval = *src; | |
431 | result = (GFC_INTEGER_16) n + 1; | |
432 | } | |
644cb69f | 433 | } |
036e1775 | 434 | *dest = result; |
644cb69f FXC |
435 | } |
436 | /* Advance to the next element. */ | |
437 | count[0]++; | |
438 | base += sstride[0]; | |
439 | mbase += mstride[0]; | |
440 | dest += dstride[0]; | |
441 | n = 0; | |
442 | while (count[n] == extent[n]) | |
80927a56 JJ |
443 | { |
444 | /* When we get to the end of a dimension, reset it and increment | |
445 | the next dimension. */ | |
446 | count[n] = 0; | |
447 | /* We could precalculate these products, but this is a less | |
448 | frequently used path so probably not worth it. */ | |
449 | base -= sstride[n] * extent[n]; | |
450 | mbase -= mstride[n] * extent[n]; | |
451 | dest -= dstride[n] * extent[n]; | |
452 | n++; | |
80dd631f | 453 | if (n >= rank) |
80927a56 | 454 | { |
80dd631f | 455 | /* Break out of the loop. */ |
80927a56 JJ |
456 | base = NULL; |
457 | break; | |
458 | } | |
459 | else | |
460 | { | |
461 | count[n]++; | |
462 | base += sstride[n]; | |
463 | mbase += mstride[n]; | |
464 | dest += dstride[n]; | |
465 | } | |
466 | } | |
644cb69f FXC |
467 | } |
468 | } | |
469 | ||
97a62038 TK |
470 | |
471 | extern void sminloc1_16_r8 (gfc_array_i16 * const restrict, | |
472 | gfc_array_r8 * const restrict, const index_type * const restrict, | |
64b1806b | 473 | GFC_LOGICAL_4 *, GFC_LOGICAL_4 back); |
97a62038 TK |
474 | export_proto(sminloc1_16_r8); |
475 | ||
476 | void | |
477 | sminloc1_16_r8 (gfc_array_i16 * const restrict retarray, | |
478 | gfc_array_r8 * const restrict array, | |
479 | const index_type * const restrict pdim, | |
64b1806b | 480 | GFC_LOGICAL_4 * mask, GFC_LOGICAL_4 back) |
97a62038 | 481 | { |
802367d7 TK |
482 | index_type count[GFC_MAX_DIMENSIONS]; |
483 | index_type extent[GFC_MAX_DIMENSIONS]; | |
802367d7 TK |
484 | index_type dstride[GFC_MAX_DIMENSIONS]; |
485 | GFC_INTEGER_16 * restrict dest; | |
97a62038 TK |
486 | index_type rank; |
487 | index_type n; | |
802367d7 TK |
488 | index_type dim; |
489 | ||
97a62038 | 490 | |
2ea47ee9 | 491 | if (mask == NULL || *mask) |
97a62038 | 492 | { |
64b1806b TK |
493 | #ifdef HAVE_BACK_ARG |
494 | minloc1_16_r8 (retarray, array, pdim, back); | |
495 | #else | |
97a62038 | 496 | minloc1_16_r8 (retarray, array, pdim); |
64b1806b | 497 | #endif |
97a62038 TK |
498 | return; |
499 | } | |
802367d7 TK |
500 | /* Make dim zero based to avoid confusion. */ |
501 | dim = (*pdim) - 1; | |
502 | rank = GFC_DESCRIPTOR_RANK (array) - 1; | |
503 | ||
cfdf6ff6 TK |
504 | if (unlikely (dim < 0 || dim > rank)) |
505 | { | |
506 | runtime_error ("Dim argument incorrect in MINLOC intrinsic: " | |
507 | "is %ld, should be between 1 and %ld", | |
508 | (long int) dim + 1, (long int) rank + 1); | |
509 | } | |
510 | ||
802367d7 TK |
511 | for (n = 0; n < dim; n++) |
512 | { | |
dfb55fdc | 513 | extent[n] = GFC_DESCRIPTOR_EXTENT(array,n); |
802367d7 TK |
514 | |
515 | if (extent[n] <= 0) | |
516 | extent[n] = 0; | |
517 | } | |
518 | ||
519 | for (n = dim; n < rank; n++) | |
520 | { | |
802367d7 | 521 | extent[n] = |
80927a56 | 522 | GFC_DESCRIPTOR_EXTENT(array,n + 1); |
802367d7 TK |
523 | |
524 | if (extent[n] <= 0) | |
80927a56 | 525 | extent[n] = 0; |
802367d7 | 526 | } |
97a62038 | 527 | |
21d1335b | 528 | if (retarray->base_addr == NULL) |
97a62038 | 529 | { |
dfb55fdc | 530 | size_t alloc_size, str; |
802367d7 TK |
531 | |
532 | for (n = 0; n < rank; n++) | |
80927a56 JJ |
533 | { |
534 | if (n == 0) | |
535 | str = 1; | |
536 | else | |
537 | str = GFC_DESCRIPTOR_STRIDE(retarray,n-1) * extent[n-1]; | |
dfb55fdc TK |
538 | |
539 | GFC_DIMENSION_SET(retarray->dim[n], 0, extent[n] - 1, str); | |
540 | ||
80927a56 | 541 | } |
802367d7 | 542 | |
97a62038 | 543 | retarray->offset = 0; |
ca708a2b | 544 | retarray->dtype.rank = rank; |
802367d7 | 545 | |
92e6f3a4 | 546 | alloc_size = GFC_DESCRIPTOR_STRIDE(retarray,rank-1) * extent[rank-1]; |
802367d7 | 547 | |
d56bf419 | 548 | retarray->base_addr = xmallocarray (alloc_size, sizeof (GFC_INTEGER_16)); |
802367d7 TK |
549 | if (alloc_size == 0) |
550 | { | |
551 | /* Make sure we have a zero-sized array. */ | |
dfb55fdc | 552 | GFC_DIMENSION_SET(retarray->dim[0], 0, -1, 1); |
802367d7 TK |
553 | return; |
554 | } | |
97a62038 TK |
555 | } |
556 | else | |
557 | { | |
802367d7 TK |
558 | if (rank != GFC_DESCRIPTOR_RANK (retarray)) |
559 | runtime_error ("rank of return array incorrect in" | |
560 | " MINLOC intrinsic: is %ld, should be %ld", | |
561 | (long int) (GFC_DESCRIPTOR_RANK (retarray)), | |
562 | (long int) rank); | |
563 | ||
9731c4a3 | 564 | if (unlikely (compile_options.bounds_check)) |
fd6590f8 | 565 | { |
802367d7 TK |
566 | for (n=0; n < rank; n++) |
567 | { | |
568 | index_type ret_extent; | |
97a62038 | 569 | |
dfb55fdc | 570 | ret_extent = GFC_DESCRIPTOR_EXTENT(retarray,n); |
802367d7 TK |
571 | if (extent[n] != ret_extent) |
572 | runtime_error ("Incorrect extent in return value of" | |
573 | " MINLOC intrinsic in dimension %ld:" | |
574 | " is %ld, should be %ld", (long int) n + 1, | |
575 | (long int) ret_extent, (long int) extent[n]); | |
576 | } | |
fd6590f8 TK |
577 | } |
578 | } | |
97a62038 | 579 | |
802367d7 TK |
580 | for (n = 0; n < rank; n++) |
581 | { | |
582 | count[n] = 0; | |
dfb55fdc | 583 | dstride[n] = GFC_DESCRIPTOR_STRIDE(retarray,n); |
802367d7 TK |
584 | } |
585 | ||
21d1335b | 586 | dest = retarray->base_addr; |
802367d7 TK |
587 | |
588 | while(1) | |
589 | { | |
590 | *dest = 0; | |
591 | count[0]++; | |
592 | dest += dstride[0]; | |
593 | n = 0; | |
594 | while (count[n] == extent[n]) | |
80927a56 | 595 | { |
802367d7 | 596 | /* When we get to the end of a dimension, reset it and increment |
80927a56 JJ |
597 | the next dimension. */ |
598 | count[n] = 0; | |
599 | /* We could precalculate these products, but this is a less | |
600 | frequently used path so probably not worth it. */ | |
601 | dest -= dstride[n] * extent[n]; | |
602 | n++; | |
80dd631f | 603 | if (n >= rank) |
802367d7 | 604 | return; |
80927a56 JJ |
605 | else |
606 | { | |
607 | count[n]++; | |
608 | dest += dstride[n]; | |
609 | } | |
802367d7 TK |
610 | } |
611 | } | |
97a62038 TK |
612 | } |
613 | ||
644cb69f | 614 | #endif |