1 /* Generic implementation of the UNPACK intrinsic
2 Copyright 2002, 2003, 2004, 2005, 2007, 2009 Free Software Foundation, Inc.
3 Contributed by Paul Brook <paul@nowt.org>
5 This file is part of the GNU Fortran 95 runtime library (libgfortran).
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.
12 Ligbfortran 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.
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.
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/>. */
26 #include "libgfortran.h"
31 /* All the bounds checking for unpack in one function. If field is NULL,
32 we don't check it, for the unpack0 functions. */
35 unpack_bounds (gfc_array_char
*ret
, const gfc_array_char
*vector
,
36 const gfc_array_l1
*mask
, const gfc_array_char
*field
)
38 index_type vec_size
, mask_count
;
39 vec_size
= size0 ((array_t
*) vector
);
40 mask_count
= count_0 (mask
);
41 if (vec_size
< mask_count
)
42 runtime_error ("Incorrect size of return value in UNPACK"
43 " intrinsic: should be at least %ld, is"
44 " %ld", (long int) mask_count
,
48 bounds_equal_extents ((array_t
*) field
, (array_t
*) mask
,
51 if (ret
->data
!= NULL
)
52 bounds_equal_extents ((array_t
*) ret
, (array_t
*) mask
,
53 "return value", "UNPACK");
58 unpack_internal (gfc_array_char
*ret
, const gfc_array_char
*vector
,
59 const gfc_array_l1
*mask
, const gfc_array_char
*field
,
62 /* r.* indicates the return array. */
63 index_type rstride
[GFC_MAX_DIMENSIONS
];
67 /* v.* indicates the vector array. */
70 /* f.* indicates the field array. */
71 index_type fstride
[GFC_MAX_DIMENSIONS
];
74 /* m.* indicates the mask array. */
75 index_type mstride
[GFC_MAX_DIMENSIONS
];
77 const GFC_LOGICAL_1
*mptr
;
79 index_type count
[GFC_MAX_DIMENSIONS
];
80 index_type extent
[GFC_MAX_DIMENSIONS
];
91 /* Use the same loop for all logical types, by using GFC_LOGICAL_1
92 and using shifting to address size and endian issues. */
94 mask_kind
= GFC_DESCRIPTOR_SIZE (mask
);
96 if (mask_kind
== 1 || mask_kind
== 2 || mask_kind
== 4 || mask_kind
== 8
97 #ifdef HAVE_GFC_LOGICAL_16
102 /* Don't convert a NULL pointer as we use test for NULL below. */
104 mptr
= GFOR_POINTER_TO_L1 (mptr
, mask_kind
);
107 runtime_error ("Funny sized logical array");
109 if (ret
->data
== NULL
)
111 /* The front end has signalled that we need to populate the
112 return array descriptor. */
113 dim
= GFC_DESCRIPTOR_RANK (mask
);
115 for (n
= 0; n
< dim
; n
++)
118 GFC_DIMENSION_SET(ret
->dim
[n
], 0,
119 GFC_DESCRIPTOR_EXTENT(mask
,n
) - 1, rs
);
120 extent
[n
] = GFC_DESCRIPTOR_EXTENT(ret
,n
);
121 empty
= empty
|| extent
[n
] <= 0;
122 rstride
[n
] = GFC_DESCRIPTOR_STRIDE_BYTES(ret
, n
);
123 fstride
[n
] = GFC_DESCRIPTOR_STRIDE_BYTES(field
, n
);
124 mstride
[n
] = GFC_DESCRIPTOR_STRIDE_BYTES(mask
, n
);
128 ret
->data
= internal_malloc_size (rs
* size
);
132 dim
= GFC_DESCRIPTOR_RANK (ret
);
133 for (n
= 0; n
< dim
; n
++)
136 extent
[n
] = GFC_DESCRIPTOR_EXTENT(ret
,n
);
137 empty
= empty
|| extent
[n
] <= 0;
138 rstride
[n
] = GFC_DESCRIPTOR_STRIDE_BYTES(ret
, n
);
139 fstride
[n
] = GFC_DESCRIPTOR_STRIDE_BYTES(field
, n
);
140 mstride
[n
] = GFC_DESCRIPTOR_STRIDE_BYTES(mask
, n
);
147 vstride0
= GFC_DESCRIPTOR_STRIDE_BYTES(vector
,0);
148 rstride0
= rstride
[0];
149 fstride0
= fstride
[0];
150 mstride0
= mstride
[0];
160 memcpy (rptr
, vptr
, size
);
166 memcpy (rptr
, fptr
, size
);
168 /* Advance to the next element. */
174 while (count
[n
] == extent
[n
])
176 /* When we get to the end of a dimension, reset it and increment
177 the next dimension. */
179 /* We could precalculate these products, but this is a less
180 frequently used path so probably not worth it. */
181 rptr
-= rstride
[n
] * extent
[n
];
182 fptr
-= fstride
[n
] * extent
[n
];
183 mptr
-= mstride
[n
] * extent
[n
];
187 /* Break out of the loop. */
202 extern void unpack1 (gfc_array_char
*, const gfc_array_char
*,
203 const gfc_array_l1
*, const gfc_array_char
*);
204 export_proto(unpack1
);
207 unpack1 (gfc_array_char
*ret
, const gfc_array_char
*vector
,
208 const gfc_array_l1
*mask
, const gfc_array_char
*field
)
210 index_type type_size
;
213 if (unlikely(compile_options
.bounds_check
))
214 unpack_bounds (ret
, vector
, mask
, field
);
216 type_size
= GFC_DTYPE_TYPE_SIZE (vector
);
217 size
= GFC_DESCRIPTOR_SIZE (vector
);
221 case GFC_DTYPE_LOGICAL_1
:
222 case GFC_DTYPE_INTEGER_1
:
223 case GFC_DTYPE_DERIVED_1
:
224 unpack1_i1 ((gfc_array_i1
*) ret
, (gfc_array_i1
*) vector
,
225 mask
, (gfc_array_i1
*) field
);
228 case GFC_DTYPE_LOGICAL_2
:
229 case GFC_DTYPE_INTEGER_2
:
230 unpack1_i2 ((gfc_array_i2
*) ret
, (gfc_array_i2
*) vector
,
231 mask
, (gfc_array_i2
*) field
);
234 case GFC_DTYPE_LOGICAL_4
:
235 case GFC_DTYPE_INTEGER_4
:
236 unpack1_i4 ((gfc_array_i4
*) ret
, (gfc_array_i4
*) vector
,
237 mask
, (gfc_array_i4
*) field
);
240 case GFC_DTYPE_LOGICAL_8
:
241 case GFC_DTYPE_INTEGER_8
:
242 unpack1_i8 ((gfc_array_i8
*) ret
, (gfc_array_i8
*) vector
,
243 mask
, (gfc_array_i8
*) field
);
246 #ifdef HAVE_GFC_INTEGER_16
247 case GFC_DTYPE_LOGICAL_16
:
248 case GFC_DTYPE_INTEGER_16
:
249 unpack1_i16 ((gfc_array_i16
*) ret
, (gfc_array_i16
*) vector
,
250 mask
, (gfc_array_i16
*) field
);
253 case GFC_DTYPE_REAL_4
:
254 unpack1_r4 ((gfc_array_r4
*) ret
, (gfc_array_r4
*) vector
,
255 mask
, (gfc_array_r4
*) field
);
258 case GFC_DTYPE_REAL_8
:
259 unpack1_r8 ((gfc_array_r8
*) ret
, (gfc_array_r8
*) vector
,
260 mask
, (gfc_array_r8
*) field
);
263 #ifdef HAVE_GFC_REAL_10
264 case GFC_DTYPE_REAL_10
:
265 unpack1_r10 ((gfc_array_r10
*) ret
, (gfc_array_r10
*) vector
,
266 mask
, (gfc_array_r10
*) field
);
270 #ifdef HAVE_GFC_REAL_16
271 case GFC_DTYPE_REAL_16
:
272 unpack1_r16 ((gfc_array_r16
*) ret
, (gfc_array_r16
*) vector
,
273 mask
, (gfc_array_r16
*) field
);
277 case GFC_DTYPE_COMPLEX_4
:
278 unpack1_c4 ((gfc_array_c4
*) ret
, (gfc_array_c4
*) vector
,
279 mask
, (gfc_array_c4
*) field
);
282 case GFC_DTYPE_COMPLEX_8
:
283 unpack1_c8 ((gfc_array_c8
*) ret
, (gfc_array_c8
*) vector
,
284 mask
, (gfc_array_c8
*) field
);
287 #ifdef HAVE_GFC_COMPLEX_10
288 case GFC_DTYPE_COMPLEX_10
:
289 unpack1_c10 ((gfc_array_c10
*) ret
, (gfc_array_c10
*) vector
,
290 mask
, (gfc_array_c10
*) field
);
294 #ifdef HAVE_GFC_COMPLEX_16
295 case GFC_DTYPE_COMPLEX_16
:
296 unpack1_c16 ((gfc_array_c16
*) ret
, (gfc_array_c16
*) vector
,
297 mask
, (gfc_array_c16
*) field
);
301 case GFC_DTYPE_DERIVED_2
:
302 if (GFC_UNALIGNED_2(ret
->data
) || GFC_UNALIGNED_2(vector
->data
)
303 || GFC_UNALIGNED_2(field
->data
))
307 unpack1_i2 ((gfc_array_i2
*) ret
, (gfc_array_i2
*) vector
,
308 mask
, (gfc_array_i2
*) field
);
312 case GFC_DTYPE_DERIVED_4
:
313 if (GFC_UNALIGNED_4(ret
->data
) || GFC_UNALIGNED_4(vector
->data
)
314 || GFC_UNALIGNED_4(field
->data
))
318 unpack1_i4 ((gfc_array_i4
*) ret
, (gfc_array_i4
*) vector
,
319 mask
, (gfc_array_i4
*) field
);
323 case GFC_DTYPE_DERIVED_8
:
324 if (GFC_UNALIGNED_8(ret
->data
) || GFC_UNALIGNED_8(vector
->data
)
325 || GFC_UNALIGNED_8(field
->data
))
329 unpack1_i8 ((gfc_array_i8
*) ret
, (gfc_array_i8
*) vector
,
330 mask
, (gfc_array_i8
*) field
);
334 #ifdef HAVE_GFC_INTEGER_16
335 case GFC_DTYPE_DERIVED_16
:
336 if (GFC_UNALIGNED_16(ret
->data
) || GFC_UNALIGNED_16(vector
->data
)
337 || GFC_UNALIGNED_16(field
->data
))
341 unpack1_i16 ((gfc_array_i16
*) ret
, (gfc_array_i16
*) vector
,
342 mask
, (gfc_array_i16
*) field
);
348 unpack_internal (ret
, vector
, mask
, field
, size
);
352 extern void unpack1_char (gfc_array_char
*, GFC_INTEGER_4
,
353 const gfc_array_char
*, const gfc_array_l1
*,
354 const gfc_array_char
*, GFC_INTEGER_4
,
356 export_proto(unpack1_char
);
359 unpack1_char (gfc_array_char
*ret
,
360 GFC_INTEGER_4 ret_length
__attribute__((unused
)),
361 const gfc_array_char
*vector
, const gfc_array_l1
*mask
,
362 const gfc_array_char
*field
, GFC_INTEGER_4 vector_length
,
363 GFC_INTEGER_4 field_length
__attribute__((unused
)))
366 if (unlikely(compile_options
.bounds_check
))
367 unpack_bounds (ret
, vector
, mask
, field
);
369 unpack_internal (ret
, vector
, mask
, field
, vector_length
);
373 extern void unpack1_char4 (gfc_array_char
*, GFC_INTEGER_4
,
374 const gfc_array_char
*, const gfc_array_l1
*,
375 const gfc_array_char
*, GFC_INTEGER_4
,
377 export_proto(unpack1_char4
);
380 unpack1_char4 (gfc_array_char
*ret
,
381 GFC_INTEGER_4 ret_length
__attribute__((unused
)),
382 const gfc_array_char
*vector
, const gfc_array_l1
*mask
,
383 const gfc_array_char
*field
, GFC_INTEGER_4 vector_length
,
384 GFC_INTEGER_4 field_length
__attribute__((unused
)))
387 if (unlikely(compile_options
.bounds_check
))
388 unpack_bounds (ret
, vector
, mask
, field
);
390 unpack_internal (ret
, vector
, mask
, field
,
391 vector_length
* sizeof (gfc_char4_t
));
395 extern void unpack0 (gfc_array_char
*, const gfc_array_char
*,
396 const gfc_array_l1
*, char *);
397 export_proto(unpack0
);
400 unpack0 (gfc_array_char
*ret
, const gfc_array_char
*vector
,
401 const gfc_array_l1
*mask
, char *field
)
405 index_type type_size
;
408 if (unlikely(compile_options
.bounds_check
))
409 unpack_bounds (ret
, vector
, mask
, NULL
);
411 type_size
= GFC_DTYPE_TYPE_SIZE (vector
);
412 size
= GFC_DESCRIPTOR_SIZE (vector
);
416 case GFC_DTYPE_LOGICAL_1
:
417 case GFC_DTYPE_INTEGER_1
:
418 case GFC_DTYPE_DERIVED_1
:
419 unpack0_i1 ((gfc_array_i1
*) ret
, (gfc_array_i1
*) vector
,
420 mask
, (GFC_INTEGER_1
*) field
);
423 case GFC_DTYPE_LOGICAL_2
:
424 case GFC_DTYPE_INTEGER_2
:
425 unpack0_i2 ((gfc_array_i2
*) ret
, (gfc_array_i2
*) vector
,
426 mask
, (GFC_INTEGER_2
*) field
);
429 case GFC_DTYPE_LOGICAL_4
:
430 case GFC_DTYPE_INTEGER_4
:
431 unpack0_i4 ((gfc_array_i4
*) ret
, (gfc_array_i4
*) vector
,
432 mask
, (GFC_INTEGER_4
*) field
);
435 case GFC_DTYPE_LOGICAL_8
:
436 case GFC_DTYPE_INTEGER_8
:
437 unpack0_i8 ((gfc_array_i8
*) ret
, (gfc_array_i8
*) vector
,
438 mask
, (GFC_INTEGER_8
*) field
);
441 #ifdef HAVE_GFC_INTEGER_16
442 case GFC_DTYPE_LOGICAL_16
:
443 case GFC_DTYPE_INTEGER_16
:
444 unpack0_i16 ((gfc_array_i16
*) ret
, (gfc_array_i16
*) vector
,
445 mask
, (GFC_INTEGER_16
*) field
);
448 case GFC_DTYPE_REAL_4
:
449 unpack0_r4 ((gfc_array_r4
*) ret
, (gfc_array_r4
*) vector
,
450 mask
, (GFC_REAL_4
*) field
);
453 case GFC_DTYPE_REAL_8
:
454 unpack0_r8 ((gfc_array_r8
*) ret
, (gfc_array_r8
*) vector
,
455 mask
, (GFC_REAL_8
*) field
);
458 #ifdef HAVE_GFC_REAL_10
459 case GFC_DTYPE_REAL_10
:
460 unpack0_r10 ((gfc_array_r10
*) ret
, (gfc_array_r10
*) vector
,
461 mask
, (GFC_REAL_10
*) field
);
465 #ifdef HAVE_GFC_REAL_16
466 case GFC_DTYPE_REAL_16
:
467 unpack0_r16 ((gfc_array_r16
*) ret
, (gfc_array_r16
*) vector
,
468 mask
, (GFC_REAL_16
*) field
);
472 case GFC_DTYPE_COMPLEX_4
:
473 unpack0_c4 ((gfc_array_c4
*) ret
, (gfc_array_c4
*) vector
,
474 mask
, (GFC_COMPLEX_4
*) field
);
477 case GFC_DTYPE_COMPLEX_8
:
478 unpack0_c8 ((gfc_array_c8
*) ret
, (gfc_array_c8
*) vector
,
479 mask
, (GFC_COMPLEX_8
*) field
);
482 #ifdef HAVE_GFC_COMPLEX_10
483 case GFC_DTYPE_COMPLEX_10
:
484 unpack0_c10 ((gfc_array_c10
*) ret
, (gfc_array_c10
*) vector
,
485 mask
, (GFC_COMPLEX_10
*) field
);
489 #ifdef HAVE_GFC_COMPLEX_16
490 case GFC_DTYPE_COMPLEX_16
:
491 unpack0_c16 ((gfc_array_c16
*) ret
, (gfc_array_c16
*) vector
,
492 mask
, (GFC_COMPLEX_16
*) field
);
495 case GFC_DTYPE_DERIVED_2
:
496 if (GFC_UNALIGNED_2(ret
->data
) || GFC_UNALIGNED_2(vector
->data
)
497 || GFC_UNALIGNED_2(field
))
501 unpack0_i2 ((gfc_array_i2
*) ret
, (gfc_array_i2
*) vector
,
502 mask
, (GFC_INTEGER_2
*) field
);
506 case GFC_DTYPE_DERIVED_4
:
507 if (GFC_UNALIGNED_4(ret
->data
) || GFC_UNALIGNED_4(vector
->data
)
508 || GFC_UNALIGNED_4(field
))
512 unpack0_i4 ((gfc_array_i4
*) ret
, (gfc_array_i4
*) vector
,
513 mask
, (GFC_INTEGER_4
*) field
);
517 case GFC_DTYPE_DERIVED_8
:
518 if (GFC_UNALIGNED_8(ret
->data
) || GFC_UNALIGNED_8(vector
->data
)
519 || GFC_UNALIGNED_8(field
))
523 unpack0_i8 ((gfc_array_i8
*) ret
, (gfc_array_i8
*) vector
,
524 mask
, (GFC_INTEGER_8
*) field
);
527 #ifdef HAVE_GFC_INTEGER_16
528 case GFC_DTYPE_DERIVED_16
:
529 if (GFC_UNALIGNED_16(ret
->data
) || GFC_UNALIGNED_16(vector
->data
)
530 || GFC_UNALIGNED_16(field
))
534 unpack0_i16 ((gfc_array_i16
*) ret
, (gfc_array_i16
*) vector
,
535 mask
, (GFC_INTEGER_16
*) field
);
541 memset (&tmp
, 0, sizeof (tmp
));
544 unpack_internal (ret
, vector
, mask
, &tmp
, GFC_DESCRIPTOR_SIZE (vector
));
548 extern void unpack0_char (gfc_array_char
*, GFC_INTEGER_4
,
549 const gfc_array_char
*, const gfc_array_l1
*,
550 char *, GFC_INTEGER_4
, GFC_INTEGER_4
);
551 export_proto(unpack0_char
);
554 unpack0_char (gfc_array_char
*ret
,
555 GFC_INTEGER_4 ret_length
__attribute__((unused
)),
556 const gfc_array_char
*vector
, const gfc_array_l1
*mask
,
557 char *field
, GFC_INTEGER_4 vector_length
,
558 GFC_INTEGER_4 field_length
__attribute__((unused
)))
562 if (unlikely(compile_options
.bounds_check
))
563 unpack_bounds (ret
, vector
, mask
, NULL
);
565 memset (&tmp
, 0, sizeof (tmp
));
568 unpack_internal (ret
, vector
, mask
, &tmp
, vector_length
);
572 extern void unpack0_char4 (gfc_array_char
*, GFC_INTEGER_4
,
573 const gfc_array_char
*, const gfc_array_l1
*,
574 char *, GFC_INTEGER_4
, GFC_INTEGER_4
);
575 export_proto(unpack0_char4
);
578 unpack0_char4 (gfc_array_char
*ret
,
579 GFC_INTEGER_4 ret_length
__attribute__((unused
)),
580 const gfc_array_char
*vector
, const gfc_array_l1
*mask
,
581 char *field
, GFC_INTEGER_4 vector_length
,
582 GFC_INTEGER_4 field_length
__attribute__((unused
)))
586 if (unlikely(compile_options
.bounds_check
))
587 unpack_bounds (ret
, vector
, mask
, NULL
);
589 memset (&tmp
, 0, sizeof (tmp
));
592 unpack_internal (ret
, vector
, mask
, &tmp
,
593 vector_length
* sizeof (gfc_char4_t
));