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3478bba4 | 1 | /* Specific implementation of the UNPACK intrinsic |
f0bcf628 | 2 | Copyright (C) 2008-2014 Free Software Foundation, Inc. |
3478bba4 TK |
3 | Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>, based on |
4 | unpack_generic.c by Paul Brook <paul@nowt.org>. | |
5 | ||
21d1335b | 6 | This file is part of the GNU Fortran runtime library (libgfortran). |
3478bba4 TK |
7 | |
8 | Libgfortran is free software; you can redistribute it and/or | |
9 | modify it under the terms of the GNU General Public | |
10 | License as published by the Free Software Foundation; either | |
748086b7 | 11 | version 3 of the License, or (at your option) any later version. |
3478bba4 TK |
12 | |
13 | Ligbfortran is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
748086b7 JJ |
18 | Under Section 7 of GPL version 3, you are granted additional |
19 | permissions described in the GCC Runtime Library Exception, version | |
20 | 3.1, as published by the Free Software Foundation. | |
21 | ||
22 | You should have received a copy of the GNU General Public License and | |
23 | a copy of the GCC Runtime Library Exception along with this program; | |
24 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
25 | <http://www.gnu.org/licenses/>. */ | |
3478bba4 TK |
26 | |
27 | #include "libgfortran.h" | |
28 | #include <stdlib.h> | |
29 | #include <assert.h> | |
30 | #include <string.h> | |
31 | ||
32 | ||
33 | #if defined (HAVE_GFC_INTEGER_16) | |
34 | ||
35 | void | |
36 | unpack0_i16 (gfc_array_i16 *ret, const gfc_array_i16 *vector, | |
37 | const gfc_array_l1 *mask, const GFC_INTEGER_16 *fptr) | |
38 | { | |
39 | /* r.* indicates the return array. */ | |
40 | index_type rstride[GFC_MAX_DIMENSIONS]; | |
41 | index_type rstride0; | |
42 | index_type rs; | |
5863aacf | 43 | GFC_INTEGER_16 * restrict rptr; |
3478bba4 TK |
44 | /* v.* indicates the vector array. */ |
45 | index_type vstride0; | |
46 | GFC_INTEGER_16 *vptr; | |
47 | /* Value for field, this is constant. */ | |
48 | const GFC_INTEGER_16 fval = *fptr; | |
49 | /* m.* indicates the mask array. */ | |
50 | index_type mstride[GFC_MAX_DIMENSIONS]; | |
51 | index_type mstride0; | |
52 | const GFC_LOGICAL_1 *mptr; | |
53 | ||
54 | index_type count[GFC_MAX_DIMENSIONS]; | |
55 | index_type extent[GFC_MAX_DIMENSIONS]; | |
56 | index_type n; | |
57 | index_type dim; | |
58 | ||
59 | int empty; | |
60 | int mask_kind; | |
61 | ||
62 | empty = 0; | |
63 | ||
21d1335b | 64 | mptr = mask->base_addr; |
3478bba4 TK |
65 | |
66 | /* Use the same loop for all logical types, by using GFC_LOGICAL_1 | |
67 | and using shifting to address size and endian issues. */ | |
68 | ||
69 | mask_kind = GFC_DESCRIPTOR_SIZE (mask); | |
70 | ||
71 | if (mask_kind == 1 || mask_kind == 2 || mask_kind == 4 || mask_kind == 8 | |
72 | #ifdef HAVE_GFC_LOGICAL_16 | |
73 | || mask_kind == 16 | |
74 | #endif | |
75 | ) | |
76 | { | |
77 | /* Do not convert a NULL pointer as we use test for NULL below. */ | |
78 | if (mptr) | |
79 | mptr = GFOR_POINTER_TO_L1 (mptr, mask_kind); | |
80 | } | |
81 | else | |
82 | runtime_error ("Funny sized logical array"); | |
83 | ||
21d1335b | 84 | if (ret->base_addr == NULL) |
3478bba4 TK |
85 | { |
86 | /* The front end has signalled that we need to populate the | |
87 | return array descriptor. */ | |
88 | dim = GFC_DESCRIPTOR_RANK (mask); | |
89 | rs = 1; | |
90 | for (n = 0; n < dim; n++) | |
91 | { | |
92 | count[n] = 0; | |
dfb55fdc TK |
93 | GFC_DIMENSION_SET(ret->dim[n], 0, |
94 | GFC_DESCRIPTOR_EXTENT(mask,n) - 1, rs); | |
95 | extent[n] = GFC_DESCRIPTOR_EXTENT(ret,n); | |
3478bba4 | 96 | empty = empty || extent[n] <= 0; |
dfb55fdc TK |
97 | rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,n); |
98 | mstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(mask,n); | |
3478bba4 TK |
99 | rs *= extent[n]; |
100 | } | |
101 | ret->offset = 0; | |
92e6f3a4 | 102 | ret->base_addr = xmallocarray (rs, sizeof (GFC_INTEGER_16)); |
3478bba4 TK |
103 | } |
104 | else | |
105 | { | |
106 | dim = GFC_DESCRIPTOR_RANK (ret); | |
107 | for (n = 0; n < dim; n++) | |
108 | { | |
109 | count[n] = 0; | |
dfb55fdc | 110 | extent[n] = GFC_DESCRIPTOR_EXTENT(ret,n); |
3478bba4 | 111 | empty = empty || extent[n] <= 0; |
dfb55fdc TK |
112 | rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,n); |
113 | mstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(mask,n); | |
3478bba4 TK |
114 | } |
115 | if (rstride[0] == 0) | |
116 | rstride[0] = 1; | |
117 | } | |
118 | ||
119 | if (empty) | |
120 | return; | |
121 | ||
122 | if (mstride[0] == 0) | |
123 | mstride[0] = 1; | |
124 | ||
dfb55fdc | 125 | vstride0 = GFC_DESCRIPTOR_STRIDE(vector,0); |
3478bba4 TK |
126 | if (vstride0 == 0) |
127 | vstride0 = 1; | |
128 | rstride0 = rstride[0]; | |
129 | mstride0 = mstride[0]; | |
21d1335b TB |
130 | rptr = ret->base_addr; |
131 | vptr = vector->base_addr; | |
3478bba4 TK |
132 | |
133 | while (rptr) | |
134 | { | |
135 | if (*mptr) | |
136 | { | |
137 | /* From vector. */ | |
138 | *rptr = *vptr; | |
139 | vptr += vstride0; | |
140 | } | |
141 | else | |
142 | { | |
143 | /* From field. */ | |
144 | *rptr = fval; | |
145 | } | |
146 | /* Advance to the next element. */ | |
147 | rptr += rstride0; | |
148 | mptr += mstride0; | |
149 | count[0]++; | |
150 | n = 0; | |
151 | while (count[n] == extent[n]) | |
152 | { | |
153 | /* When we get to the end of a dimension, reset it and increment | |
154 | the next dimension. */ | |
155 | count[n] = 0; | |
156 | /* We could precalculate these products, but this is a less | |
157 | frequently used path so probably not worth it. */ | |
158 | rptr -= rstride[n] * extent[n]; | |
159 | mptr -= mstride[n] * extent[n]; | |
160 | n++; | |
161 | if (n >= dim) | |
162 | { | |
163 | /* Break out of the loop. */ | |
164 | rptr = NULL; | |
165 | break; | |
166 | } | |
167 | else | |
168 | { | |
169 | count[n]++; | |
170 | rptr += rstride[n]; | |
171 | mptr += mstride[n]; | |
172 | } | |
173 | } | |
174 | } | |
175 | } | |
176 | ||
177 | void | |
178 | unpack1_i16 (gfc_array_i16 *ret, const gfc_array_i16 *vector, | |
179 | const gfc_array_l1 *mask, const gfc_array_i16 *field) | |
180 | { | |
181 | /* r.* indicates the return array. */ | |
182 | index_type rstride[GFC_MAX_DIMENSIONS]; | |
183 | index_type rstride0; | |
184 | index_type rs; | |
5863aacf | 185 | GFC_INTEGER_16 * restrict rptr; |
3478bba4 TK |
186 | /* v.* indicates the vector array. */ |
187 | index_type vstride0; | |
188 | GFC_INTEGER_16 *vptr; | |
189 | /* f.* indicates the field array. */ | |
190 | index_type fstride[GFC_MAX_DIMENSIONS]; | |
191 | index_type fstride0; | |
192 | const GFC_INTEGER_16 *fptr; | |
193 | /* m.* indicates the mask array. */ | |
194 | index_type mstride[GFC_MAX_DIMENSIONS]; | |
195 | index_type mstride0; | |
196 | const GFC_LOGICAL_1 *mptr; | |
197 | ||
198 | index_type count[GFC_MAX_DIMENSIONS]; | |
199 | index_type extent[GFC_MAX_DIMENSIONS]; | |
200 | index_type n; | |
201 | index_type dim; | |
202 | ||
203 | int empty; | |
204 | int mask_kind; | |
205 | ||
206 | empty = 0; | |
207 | ||
21d1335b | 208 | mptr = mask->base_addr; |
3478bba4 TK |
209 | |
210 | /* Use the same loop for all logical types, by using GFC_LOGICAL_1 | |
211 | and using shifting to address size and endian issues. */ | |
212 | ||
213 | mask_kind = GFC_DESCRIPTOR_SIZE (mask); | |
214 | ||
215 | if (mask_kind == 1 || mask_kind == 2 || mask_kind == 4 || mask_kind == 8 | |
216 | #ifdef HAVE_GFC_LOGICAL_16 | |
217 | || mask_kind == 16 | |
218 | #endif | |
219 | ) | |
220 | { | |
221 | /* Do not convert a NULL pointer as we use test for NULL below. */ | |
222 | if (mptr) | |
223 | mptr = GFOR_POINTER_TO_L1 (mptr, mask_kind); | |
224 | } | |
225 | else | |
226 | runtime_error ("Funny sized logical array"); | |
227 | ||
21d1335b | 228 | if (ret->base_addr == NULL) |
3478bba4 TK |
229 | { |
230 | /* The front end has signalled that we need to populate the | |
231 | return array descriptor. */ | |
232 | dim = GFC_DESCRIPTOR_RANK (mask); | |
233 | rs = 1; | |
234 | for (n = 0; n < dim; n++) | |
235 | { | |
236 | count[n] = 0; | |
dfb55fdc TK |
237 | GFC_DIMENSION_SET(ret->dim[n], 0, |
238 | GFC_DESCRIPTOR_EXTENT(mask,n) - 1, rs); | |
239 | extent[n] = GFC_DESCRIPTOR_EXTENT(ret,n); | |
3478bba4 | 240 | empty = empty || extent[n] <= 0; |
dfb55fdc TK |
241 | rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,n); |
242 | fstride[n] = GFC_DESCRIPTOR_STRIDE(field,n); | |
243 | mstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(mask,n); | |
3478bba4 TK |
244 | rs *= extent[n]; |
245 | } | |
246 | ret->offset = 0; | |
92e6f3a4 | 247 | ret->base_addr = xmallocarray (rs, sizeof (GFC_INTEGER_16)); |
3478bba4 TK |
248 | } |
249 | else | |
250 | { | |
251 | dim = GFC_DESCRIPTOR_RANK (ret); | |
252 | for (n = 0; n < dim; n++) | |
253 | { | |
254 | count[n] = 0; | |
dfb55fdc | 255 | extent[n] = GFC_DESCRIPTOR_EXTENT(ret,n); |
3478bba4 | 256 | empty = empty || extent[n] <= 0; |
dfb55fdc TK |
257 | rstride[n] = GFC_DESCRIPTOR_STRIDE(ret,n); |
258 | fstride[n] = GFC_DESCRIPTOR_STRIDE(field,n); | |
259 | mstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(mask,n); | |
3478bba4 TK |
260 | } |
261 | if (rstride[0] == 0) | |
262 | rstride[0] = 1; | |
263 | } | |
264 | ||
265 | if (empty) | |
266 | return; | |
267 | ||
268 | if (fstride[0] == 0) | |
269 | fstride[0] = 1; | |
270 | if (mstride[0] == 0) | |
271 | mstride[0] = 1; | |
272 | ||
dfb55fdc | 273 | vstride0 = GFC_DESCRIPTOR_STRIDE(vector,0); |
3478bba4 TK |
274 | if (vstride0 == 0) |
275 | vstride0 = 1; | |
276 | rstride0 = rstride[0]; | |
277 | fstride0 = fstride[0]; | |
278 | mstride0 = mstride[0]; | |
21d1335b TB |
279 | rptr = ret->base_addr; |
280 | fptr = field->base_addr; | |
281 | vptr = vector->base_addr; | |
3478bba4 TK |
282 | |
283 | while (rptr) | |
284 | { | |
285 | if (*mptr) | |
286 | { | |
287 | /* From vector. */ | |
288 | *rptr = *vptr; | |
289 | vptr += vstride0; | |
290 | } | |
291 | else | |
292 | { | |
293 | /* From field. */ | |
294 | *rptr = *fptr; | |
295 | } | |
296 | /* Advance to the next element. */ | |
297 | rptr += rstride0; | |
298 | fptr += fstride0; | |
299 | mptr += mstride0; | |
300 | count[0]++; | |
301 | n = 0; | |
302 | while (count[n] == extent[n]) | |
303 | { | |
304 | /* When we get to the end of a dimension, reset it and increment | |
305 | the next dimension. */ | |
306 | count[n] = 0; | |
307 | /* We could precalculate these products, but this is a less | |
308 | frequently used path so probably not worth it. */ | |
309 | rptr -= rstride[n] * extent[n]; | |
310 | fptr -= fstride[n] * extent[n]; | |
311 | mptr -= mstride[n] * extent[n]; | |
312 | n++; | |
313 | if (n >= dim) | |
314 | { | |
315 | /* Break out of the loop. */ | |
316 | rptr = NULL; | |
317 | break; | |
318 | } | |
319 | else | |
320 | { | |
321 | count[n]++; | |
322 | rptr += rstride[n]; | |
323 | fptr += fstride[n]; | |
324 | mptr += mstride[n]; | |
325 | } | |
326 | } | |
327 | } | |
328 | } | |
329 | ||
330 | #endif | |
331 |