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1 | /* Implementation of the MINLOC intrinsic | |
2 | Copyright (C) 2002-2018 Free Software Foundation, Inc. | |
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 3 of the License, or (at your option) any later version. | |
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 | ||
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/>. */ | |
25 | ||
26 | #include "libgfortran.h" | |
27 | #include <assert.h> | |
28 | ||
29 | ||
30 | #if defined (HAVE_GFC_INTEGER_16) && defined (HAVE_GFC_INTEGER_16) | |
31 | ||
32 | ||
33 | extern void minloc0_16_i16 (gfc_array_i16 * const restrict retarray, | |
34 | gfc_array_i16 * const restrict array, GFC_LOGICAL_4); | |
35 | export_proto(minloc0_16_i16); | |
36 | ||
37 | void | |
38 | minloc0_16_i16 (gfc_array_i16 * const restrict retarray, | |
39 | gfc_array_i16 * const restrict array, GFC_LOGICAL_4 back) | |
40 | { | |
41 | index_type count[GFC_MAX_DIMENSIONS]; | |
42 | index_type extent[GFC_MAX_DIMENSIONS]; | |
43 | index_type sstride[GFC_MAX_DIMENSIONS]; | |
44 | index_type dstride; | |
45 | const GFC_INTEGER_16 *base; | |
46 | GFC_INTEGER_16 * restrict dest; | |
47 | index_type rank; | |
48 | index_type n; | |
49 | ||
50 | assert(back == 0); | |
51 | rank = GFC_DESCRIPTOR_RANK (array); | |
52 | if (rank <= 0) | |
53 | runtime_error ("Rank of array needs to be > 0"); | |
54 | ||
55 | if (retarray->base_addr == NULL) | |
56 | { | |
57 | GFC_DIMENSION_SET(retarray->dim[0], 0, rank-1, 1); | |
58 | GFC_DTYPE_COPY_SETRANK(retarray,retarray,1); | |
59 | retarray->offset = 0; | |
60 | retarray->base_addr = xmallocarray (rank, sizeof (GFC_INTEGER_16)); | |
61 | } | |
62 | else | |
63 | { | |
64 | if (unlikely (compile_options.bounds_check)) | |
65 | bounds_iforeach_return ((array_t *) retarray, (array_t *) array, | |
66 | "MINLOC"); | |
67 | } | |
68 | ||
69 | dstride = GFC_DESCRIPTOR_STRIDE(retarray,0); | |
70 | dest = retarray->base_addr; | |
71 | for (n = 0; n < rank; n++) | |
72 | { | |
73 | sstride[n] = GFC_DESCRIPTOR_STRIDE(array,n); | |
74 | extent[n] = GFC_DESCRIPTOR_EXTENT(array,n); | |
75 | count[n] = 0; | |
76 | if (extent[n] <= 0) | |
77 | { | |
78 | /* Set the return value. */ | |
79 | for (n = 0; n < rank; n++) | |
80 | dest[n * dstride] = 0; | |
81 | return; | |
82 | } | |
83 | } | |
84 | ||
85 | base = array->base_addr; | |
86 | ||
87 | /* Initialize the return value. */ | |
88 | for (n = 0; n < rank; n++) | |
89 | dest[n * dstride] = 1; | |
90 | { | |
91 | ||
92 | GFC_INTEGER_16 minval; | |
93 | #if defined(GFC_INTEGER_16_QUIET_NAN) | |
94 | int fast = 0; | |
95 | #endif | |
96 | ||
97 | #if defined(GFC_INTEGER_16_INFINITY) | |
98 | minval = GFC_INTEGER_16_INFINITY; | |
99 | #else | |
100 | minval = GFC_INTEGER_16_HUGE; | |
101 | #endif | |
102 | while (base) | |
103 | { | |
104 | do | |
105 | { | |
106 | /* Implementation start. */ | |
107 | ||
108 | #if defined(GFC_INTEGER_16_QUIET_NAN) | |
109 | } | |
110 | while (0); | |
111 | if (unlikely (!fast)) | |
112 | { | |
113 | do | |
114 | { | |
115 | if (*base <= minval) | |
116 | { | |
117 | fast = 1; | |
118 | minval = *base; | |
119 | for (n = 0; n < rank; n++) | |
120 | dest[n * dstride] = count[n] + 1; | |
121 | break; | |
122 | } | |
123 | base += sstride[0]; | |
124 | } | |
125 | while (++count[0] != extent[0]); | |
126 | if (likely (fast)) | |
127 | continue; | |
128 | } | |
129 | else do | |
130 | { | |
131 | #endif | |
132 | if (*base < minval) | |
133 | { | |
134 | minval = *base; | |
135 | for (n = 0; n < rank; n++) | |
136 | dest[n * dstride] = count[n] + 1; | |
137 | } | |
138 | /* Implementation end. */ | |
139 | /* Advance to the next element. */ | |
140 | base += sstride[0]; | |
141 | } | |
142 | while (++count[0] != extent[0]); | |
143 | n = 0; | |
144 | do | |
145 | { | |
146 | /* When we get to the end of a dimension, reset it and increment | |
147 | the next dimension. */ | |
148 | count[n] = 0; | |
149 | /* We could precalculate these products, but this is a less | |
150 | frequently used path so probably not worth it. */ | |
151 | base -= sstride[n] * extent[n]; | |
152 | n++; | |
153 | if (n >= rank) | |
154 | { | |
155 | /* Break out of the loop. */ | |
156 | base = NULL; | |
157 | break; | |
158 | } | |
159 | else | |
160 | { | |
161 | count[n]++; | |
162 | base += sstride[n]; | |
163 | } | |
164 | } | |
165 | while (count[n] == extent[n]); | |
166 | } | |
167 | } | |
168 | } | |
169 | ||
170 | ||
171 | extern void mminloc0_16_i16 (gfc_array_i16 * const restrict, | |
172 | gfc_array_i16 * const restrict, gfc_array_l1 * const restrict, | |
173 | GFC_LOGICAL_4); | |
174 | export_proto(mminloc0_16_i16); | |
175 | ||
176 | void | |
177 | mminloc0_16_i16 (gfc_array_i16 * const restrict retarray, | |
178 | gfc_array_i16 * const restrict array, | |
179 | gfc_array_l1 * const restrict mask, GFC_LOGICAL_4 back) | |
180 | { | |
181 | index_type count[GFC_MAX_DIMENSIONS]; | |
182 | index_type extent[GFC_MAX_DIMENSIONS]; | |
183 | index_type sstride[GFC_MAX_DIMENSIONS]; | |
184 | index_type mstride[GFC_MAX_DIMENSIONS]; | |
185 | index_type dstride; | |
186 | GFC_INTEGER_16 *dest; | |
187 | const GFC_INTEGER_16 *base; | |
188 | GFC_LOGICAL_1 *mbase; | |
189 | int rank; | |
190 | index_type n; | |
191 | int mask_kind; | |
192 | ||
193 | assert(back == 0); | |
194 | rank = GFC_DESCRIPTOR_RANK (array); | |
195 | if (rank <= 0) | |
196 | runtime_error ("Rank of array needs to be > 0"); | |
197 | ||
198 | if (retarray->base_addr == NULL) | |
199 | { | |
200 | GFC_DIMENSION_SET(retarray->dim[0], 0, rank - 1, 1); | |
201 | GFC_DTYPE_COPY_SETRANK(retarray,retarray,1); | |
202 | retarray->offset = 0; | |
203 | retarray->base_addr = xmallocarray (rank, sizeof (GFC_INTEGER_16)); | |
204 | } | |
205 | else | |
206 | { | |
207 | if (unlikely (compile_options.bounds_check)) | |
208 | { | |
209 | ||
210 | bounds_iforeach_return ((array_t *) retarray, (array_t *) array, | |
211 | "MINLOC"); | |
212 | bounds_equal_extents ((array_t *) mask, (array_t *) array, | |
213 | "MASK argument", "MINLOC"); | |
214 | } | |
215 | } | |
216 | ||
217 | mask_kind = GFC_DESCRIPTOR_SIZE (mask); | |
218 | ||
219 | mbase = mask->base_addr; | |
220 | ||
221 | if (mask_kind == 1 || mask_kind == 2 || mask_kind == 4 || mask_kind == 8 | |
222 | #ifdef HAVE_GFC_LOGICAL_16 | |
223 | || mask_kind == 16 | |
224 | #endif | |
225 | ) | |
226 | mbase = GFOR_POINTER_TO_L1 (mbase, mask_kind); | |
227 | else | |
228 | runtime_error ("Funny sized logical array"); | |
229 | ||
230 | dstride = GFC_DESCRIPTOR_STRIDE(retarray,0); | |
231 | dest = retarray->base_addr; | |
232 | for (n = 0; n < rank; n++) | |
233 | { | |
234 | sstride[n] = GFC_DESCRIPTOR_STRIDE(array,n); | |
235 | mstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(mask,n); | |
236 | extent[n] = GFC_DESCRIPTOR_EXTENT(array,n); | |
237 | count[n] = 0; | |
238 | if (extent[n] <= 0) | |
239 | { | |
240 | /* Set the return value. */ | |
241 | for (n = 0; n < rank; n++) | |
242 | dest[n * dstride] = 0; | |
243 | return; | |
244 | } | |
245 | } | |
246 | ||
247 | base = array->base_addr; | |
248 | ||
249 | /* Initialize the return value. */ | |
250 | for (n = 0; n < rank; n++) | |
251 | dest[n * dstride] = 0; | |
252 | { | |
253 | ||
254 | GFC_INTEGER_16 minval; | |
255 | int fast = 0; | |
256 | ||
257 | #if defined(GFC_INTEGER_16_INFINITY) | |
258 | minval = GFC_INTEGER_16_INFINITY; | |
259 | #else | |
260 | minval = GFC_INTEGER_16_HUGE; | |
261 | #endif | |
262 | while (base) | |
263 | { | |
264 | do | |
265 | { | |
266 | /* Implementation start. */ | |
267 | ||
268 | } | |
269 | while (0); | |
270 | if (unlikely (!fast)) | |
271 | { | |
272 | do | |
273 | { | |
274 | if (*mbase) | |
275 | { | |
276 | #if defined(GFC_INTEGER_16_QUIET_NAN) | |
277 | if (unlikely (dest[0] == 0)) | |
278 | for (n = 0; n < rank; n++) | |
279 | dest[n * dstride] = count[n] + 1; | |
280 | if (*base <= minval) | |
281 | #endif | |
282 | { | |
283 | fast = 1; | |
284 | minval = *base; | |
285 | for (n = 0; n < rank; n++) | |
286 | dest[n * dstride] = count[n] + 1; | |
287 | break; | |
288 | } | |
289 | } | |
290 | base += sstride[0]; | |
291 | mbase += mstride[0]; | |
292 | } | |
293 | while (++count[0] != extent[0]); | |
294 | if (likely (fast)) | |
295 | continue; | |
296 | } | |
297 | else do | |
298 | { | |
299 | if (*mbase && *base < minval) | |
300 | { | |
301 | minval = *base; | |
302 | for (n = 0; n < rank; n++) | |
303 | dest[n * dstride] = count[n] + 1; | |
304 | } | |
305 | /* Implementation end. */ | |
306 | /* Advance to the next element. */ | |
307 | base += sstride[0]; | |
308 | mbase += mstride[0]; | |
309 | } | |
310 | while (++count[0] != extent[0]); | |
311 | n = 0; | |
312 | do | |
313 | { | |
314 | /* When we get to the end of a dimension, reset it and increment | |
315 | the next dimension. */ | |
316 | count[n] = 0; | |
317 | /* We could precalculate these products, but this is a less | |
318 | frequently used path so probably not worth it. */ | |
319 | base -= sstride[n] * extent[n]; | |
320 | mbase -= mstride[n] * extent[n]; | |
321 | n++; | |
322 | if (n >= rank) | |
323 | { | |
324 | /* Break out of the loop. */ | |
325 | base = NULL; | |
326 | break; | |
327 | } | |
328 | else | |
329 | { | |
330 | count[n]++; | |
331 | base += sstride[n]; | |
332 | mbase += mstride[n]; | |
333 | } | |
334 | } | |
335 | while (count[n] == extent[n]); | |
336 | } | |
337 | } | |
338 | } | |
339 | ||
340 | ||
341 | extern void sminloc0_16_i16 (gfc_array_i16 * const restrict, | |
342 | gfc_array_i16 * const restrict, GFC_LOGICAL_4 *, GFC_LOGICAL_4); | |
343 | export_proto(sminloc0_16_i16); | |
344 | ||
345 | void | |
346 | sminloc0_16_i16 (gfc_array_i16 * const restrict retarray, | |
347 | gfc_array_i16 * const restrict array, | |
348 | GFC_LOGICAL_4 * mask, GFC_LOGICAL_4 back) | |
349 | { | |
350 | index_type rank; | |
351 | index_type dstride; | |
352 | index_type n; | |
353 | GFC_INTEGER_16 *dest; | |
354 | ||
355 | if (*mask) | |
356 | { | |
357 | minloc0_16_i16 (retarray, array, back); | |
358 | return; | |
359 | } | |
360 | ||
361 | rank = GFC_DESCRIPTOR_RANK (array); | |
362 | ||
363 | if (rank <= 0) | |
364 | runtime_error ("Rank of array needs to be > 0"); | |
365 | ||
366 | if (retarray->base_addr == NULL) | |
367 | { | |
368 | GFC_DIMENSION_SET(retarray->dim[0], 0, rank-1, 1); | |
369 | GFC_DTYPE_COPY_SETRANK(retarray,retarray,1); | |
370 | retarray->offset = 0; | |
371 | retarray->base_addr = xmallocarray (rank, sizeof (GFC_INTEGER_16)); | |
372 | } | |
373 | else if (unlikely (compile_options.bounds_check)) | |
374 | { | |
375 | bounds_iforeach_return ((array_t *) retarray, (array_t *) array, | |
376 | "MINLOC"); | |
377 | } | |
378 | ||
379 | dstride = GFC_DESCRIPTOR_STRIDE(retarray,0); | |
380 | dest = retarray->base_addr; | |
381 | for (n = 0; n<rank; n++) | |
382 | dest[n * dstride] = 0 ; | |
383 | } | |
384 | #endif |