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6de9cd9a 1/* IO Code translation/library interface
a5544970 2 Copyright (C) 2002-2019 Free Software Foundation, Inc.
6de9cd9a
DN		 3 Contributed by Paul Brook
4
9fc4d79b 5This file is part of GCC.
6de9cd9a 6
9fc4d79b
TS		 7GCC is free software; you can redistribute it and/or modify it under
8the terms of the GNU General Public License as published by the Free
d234d788 9Software Foundation; either version 3, or (at your option) any later
9fc4d79b 10version.
6de9cd9a 11
9fc4d79b
TS		 12GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13WARRANTY; without even the implied warranty of MERCHANTABILITY or
14FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15for more details.
6de9cd9a
DN		 16
17You should have received a copy of the GNU General Public License
d234d788
NC		 18along with GCC; see the file COPYING3. If not see
19<http://www.gnu.org/licenses/>. */
6de9cd9a
DN		 20
21
22#include "config.h"
23#include "system.h"
24#include "coretypes.h"
2adfab87 25#include "tree.h"
6de9cd9a
DN		 26#include "gfortran.h"
27#include "trans.h"
2adfab87 28#include "stringpool.h"
2adfab87
AM		 29#include "fold-const.h"
30#include "stor-layout.h"
6de9cd9a
DN		 31#include "trans-stmt.h"
32#include "trans-array.h"
33#include "trans-types.h"
34#include "trans-const.h"
c05c2380 35#include "options.h"
6de9cd9a 36
6de9cd9a
DN		 37/* Members of the ioparm structure. */
38
5e805e44
JJ		 39enum ioparam_type
40{
41 IOPARM_ptype_common,
42 IOPARM_ptype_open,
43 IOPARM_ptype_close,
44 IOPARM_ptype_filepos,
45 IOPARM_ptype_inquire,
46 IOPARM_ptype_dt,
6f0f0b2e 47 IOPARM_ptype_wait,
5e805e44
JJ		 48 IOPARM_ptype_num
49};
50
51enum iofield_type
52{
53 IOPARM_type_int4,
014ec6ee 54 IOPARM_type_intio,
5e805e44 55 IOPARM_type_pint4,
014ec6ee 56 IOPARM_type_pintio,
5e805e44
JJ		 57 IOPARM_type_pchar,
58 IOPARM_type_parray,
59 IOPARM_type_pad,
60 IOPARM_type_char1,
61 IOPARM_type_char2,
62 IOPARM_type_common,
63 IOPARM_type_num
64};
65
d1b38208 66typedef struct GTY(()) gfc_st_parameter_field {
5e805e44
JJ		 67 const char *name;
68 unsigned int mask;
69 enum ioparam_type param_type;
70 enum iofield_type type;
71 tree field;
72 tree field_len;
73}
74gfc_st_parameter_field;
6de9cd9a 75
d1b38208 76typedef struct GTY(()) gfc_st_parameter {
5e805e44
JJ		 77 const char *name;
78 tree type;
79}
80gfc_st_parameter;
81
82enum iofield
83{
84#define IOPARM(param_type, name, mask, type) IOPARM_##param_type##_##name,
85#include "ioparm.def"
86#undef IOPARM
87 IOPARM_field_num
88};
89
90static GTY(()) gfc_st_parameter st_parameter[] =
91{
92 { "common", NULL },
93 { "open", NULL },
94 { "close", NULL },
95 { "filepos", NULL },
96 { "inquire", NULL },
6f0f0b2e
JD		 97 { "dt", NULL },
98 { "wait", NULL }
5e805e44
JJ		 99};
100
101static GTY(()) gfc_st_parameter_field st_parameter_field[] =
102{
103#define IOPARM(param_type, name, mask, type) \
104 { #name, mask, IOPARM_ptype_##param_type, IOPARM_type_##type, NULL, NULL },
105#include "ioparm.def"
106#undef IOPARM
81f40b79 107 { NULL, 0, (enum ioparam_type) 0, (enum iofield_type) 0, NULL, NULL }
5e805e44 108};
6de9cd9a
DN		 109
110/* Library I/O subroutines */
111
5e805e44
JJ		 112enum iocall
113{
114 IOCALL_READ,
115 IOCALL_READ_DONE,
116 IOCALL_WRITE,
117 IOCALL_WRITE_DONE,
118 IOCALL_X_INTEGER,
6eb6875d 119 IOCALL_X_INTEGER_WRITE,
5e805e44 120 IOCALL_X_LOGICAL,
6eb6875d 121 IOCALL_X_LOGICAL_WRITE,
5e805e44 122 IOCALL_X_CHARACTER,
6eb6875d 123 IOCALL_X_CHARACTER_WRITE,
8a221914 124 IOCALL_X_CHARACTER_WIDE,
6eb6875d 125 IOCALL_X_CHARACTER_WIDE_WRITE,
5e805e44 126 IOCALL_X_REAL,
6eb6875d 127 IOCALL_X_REAL_WRITE,
5e805e44 128 IOCALL_X_COMPLEX,
6eb6875d 129 IOCALL_X_COMPLEX_WRITE,
1ec601bf
FXC		 130 IOCALL_X_REAL128,
131 IOCALL_X_REAL128_WRITE,
132 IOCALL_X_COMPLEX128,
133 IOCALL_X_COMPLEX128_WRITE,
5e805e44 134 IOCALL_X_ARRAY,
6eb6875d 135 IOCALL_X_ARRAY_WRITE,
e73d3ca6 136 IOCALL_X_DERIVED,
5e805e44
JJ		 137 IOCALL_OPEN,
138 IOCALL_CLOSE,
139 IOCALL_INQUIRE,
140 IOCALL_IOLENGTH,
141 IOCALL_IOLENGTH_DONE,
142 IOCALL_REWIND,
143 IOCALL_BACKSPACE,
144 IOCALL_ENDFILE,
145 IOCALL_FLUSH,
146 IOCALL_SET_NML_VAL,
e73d3ca6 147 IOCALL_SET_NML_DTIO_VAL,
5e805e44 148 IOCALL_SET_NML_VAL_DIM,
6f0f0b2e 149 IOCALL_WAIT,
5e805e44
JJ		 150 IOCALL_NUM
151};
152
153static GTY(()) tree iocall[IOCALL_NUM];
6de9cd9a
DN		 154
155/* Variable for keeping track of what the last data transfer statement
156 was. Used for deciding which subroutine to call when the data
f7b529fa 157 transfer is complete. */
8750f9cd 158static enum { READ, WRITE, IOLENGTH } last_dt;
6de9cd9a 159
5e805e44
JJ		 160/* The data transfer parameter block that should be shared by all
161 data transfer calls belonging to the same read/write/iolength. */
162static GTY(()) tree dt_parm;
163static stmtblock_t *dt_post_end_block;
6de9cd9a 164
5e805e44
JJ		 165static void
166gfc_build_st_parameter (enum ioparam_type ptype, tree *types)
167{
32e8bb8e 168 unsigned int type;
5e805e44
JJ		 169 gfc_st_parameter_field *p;
170 char name[64];
171 size_t len;
172 tree t = make_node (RECORD_TYPE);
dfd6ece2 173 tree *chain = NULL;
5e805e44
JJ		 174
175 len = strlen (st_parameter[ptype].name);
176 gcc_assert (len <= sizeof (name) - sizeof ("__st_parameter_"));
177 memcpy (name, "__st_parameter_", sizeof ("__st_parameter_"));
178 memcpy (name + sizeof ("__st_parameter_") - 1, st_parameter[ptype].name,
ff7417d4 179 len + 1);
5e805e44
JJ		 180 TYPE_NAME (t) = get_identifier (name);
181
182 for (type = 0, p = st_parameter_field; type < IOPARM_field_num; type++, p++)
183 if (p->param_type == ptype)
184 switch (p->type)
185 {
186 case IOPARM_type_int4:
014ec6ee 187 case IOPARM_type_intio:
5e805e44 188 case IOPARM_type_pint4:
014ec6ee 189 case IOPARM_type_pintio:
5e805e44
JJ		 190 case IOPARM_type_parray:
191 case IOPARM_type_pchar:
192 case IOPARM_type_pad:
35151cd5 193 p->field = gfc_add_field_to_struct (t, get_identifier (p->name),
dfd6ece2 194 types[p->type], &chain);
5e805e44
JJ		 195 break;
196 case IOPARM_type_char1:
35151cd5 197 p->field = gfc_add_field_to_struct (t, get_identifier (p->name),
dfd6ece2 198 pchar_type_node, &chain);
5e805e44
JJ		 199 /* FALLTHROUGH */
200 case IOPARM_type_char2:
201 len = strlen (p->name);
202 gcc_assert (len <= sizeof (name) - sizeof ("_len"));
203 memcpy (name, p->name, len);
204 memcpy (name + len, "_len", sizeof ("_len"));
35151cd5 205 p->field_len = gfc_add_field_to_struct (t, get_identifier (name),
dfd6ece2
NF		 206 gfc_charlen_type_node,
207 &chain);
5e805e44 208 if (p->type == IOPARM_type_char2)
35151cd5 209 p->field = gfc_add_field_to_struct (t, get_identifier (p->name),
dfd6ece2 210 pchar_type_node, &chain);
5e805e44
JJ		 211 break;
212 case IOPARM_type_common:
213 p->field
35151cd5 214 = gfc_add_field_to_struct (t,
5e805e44 215 get_identifier (p->name),
dfd6ece2
NF		 216 st_parameter[IOPARM_ptype_common].type,
217 &chain);
5e805e44
JJ		 218 break;
219 case IOPARM_type_num:
220 gcc_unreachable ();
221 }
6de9cd9a 222
c05c2380
JJ		 223 /* -Wpadded warnings on these artificially created structures are not
224 helpful; suppress them. */
225 int save_warn_padded = warn_padded;
226 warn_padded = 0;
5e805e44 227 gfc_finish_type (t);
c05c2380 228 warn_padded = save_warn_padded;
5e805e44
JJ		 229 st_parameter[ptype].type = t;
230}
6de9cd9a 231
f96d606f
JD		 232
233/* Build code to test an error condition and call generate_error if needed.
234 Note: This builds calls to generate_error in the runtime library function.
235 The function generate_error is dependent on certain parameters in the
236 st_parameter_common flags to be set. (See libgfortran/runtime/error.c)
237 Therefore, the code to set these flags must be generated before
238 this function is used. */
239
ed9c79e1
JJ		 240static void
241gfc_trans_io_runtime_check (bool has_iostat, tree cond, tree var,
242 int error_code, const char * msgid,
243 stmtblock_t * pblock)
f96d606f
JD		 244{
245 stmtblock_t block;
246 tree body;
247 tree tmp;
248 tree arg1, arg2, arg3;
249 char *message;
250
251 if (integer_zerop (cond))
252 return;
253
254 /* The code to generate the error. */
255 gfc_start_block (&block);
8019105d 256
ed9c79e1
JJ		 257 if (has_iostat)
258 gfc_add_expr_to_block (&block, build_predict_expr (PRED_FORTRAN_FAIL_IO,
259 NOT_TAKEN));
260 else
261 gfc_add_expr_to_block (&block, build_predict_expr (PRED_NORETURN,
262 NOT_TAKEN));
263
628c189e 264 arg1 = gfc_build_addr_expr (NULL_TREE, var);
8019105d 265
f96d606f 266 arg2 = build_int_cst (integer_type_node, error_code),
8019105d 267
1a33dc9e 268 message = xasprintf ("%s", _(msgid));
ee37d2f5
FXC		 269 arg3 = gfc_build_addr_expr (pchar_type_node,
270 gfc_build_localized_cstring_const (message));
cede9502 271 free (message);
8019105d 272
db3927fb
AH		 273 tmp = build_call_expr_loc (input_location,
274 gfor_fndecl_generate_error, 3, arg1, arg2, arg3);
f96d606f
JD		 275
276 gfc_add_expr_to_block (&block, tmp);
277
278 body = gfc_finish_block (&block);
279
280 if (integer_onep (cond))
281 {
282 gfc_add_expr_to_block (pblock, body);
283 }
284 else
285 {
c2255bc4 286 tmp = build3_v (COND_EXPR, cond, body, build_empty_stmt (input_location));
f96d606f
JD		 287 gfc_add_expr_to_block (pblock, tmp);
288 }
289}
290
291
6de9cd9a
DN		 292/* Create function decls for IO library functions. */
293
294void
295gfc_build_io_library_fndecls (void)
296{
5e805e44 297 tree types[IOPARM_type_num], pad_idx, gfc_int4_type_node;
014ec6ee 298 tree gfc_intio_type_node;
5e805e44 299 tree parm_type, dt_parm_type;
5e805e44 300 HOST_WIDE_INT pad_size;
09639a83 301 unsigned int ptype;
5e805e44
JJ		 302
303 types[IOPARM_type_int4] = gfc_int4_type_node = gfc_get_int_type (4);
014ec6ee
JD		 304 types[IOPARM_type_intio] = gfc_intio_type_node
305 = gfc_get_int_type (gfc_intio_kind);
5e805e44 306 types[IOPARM_type_pint4] = build_pointer_type (gfc_int4_type_node);
014ec6ee
JD		 307 types[IOPARM_type_pintio]
308 = build_pointer_type (gfc_intio_type_node);
5e805e44
JJ		 309 types[IOPARM_type_parray] = pchar_type_node;
310 types[IOPARM_type_pchar] = pchar_type_node;
e1456843 311 pad_size = 16 * TREE_INT_CST_LOW (TYPE_SIZE_UNIT (pchar_type_node));
5e805e44 312 pad_size += 32 * TREE_INT_CST_LOW (TYPE_SIZE_UNIT (integer_type_node));
df09d1d5 313 pad_idx = build_index_type (size_int (pad_size - 1));
5e805e44 314 types[IOPARM_type_pad] = build_array_type (char_type_node, pad_idx);
7ae99337
SE		 315
316 /* pad actually contains pointers and integers so it needs to have an
317 alignment that is at least as large as the needed alignment for those
318 types. See the st_parameter_dt structure in libgfortran/io/io.h for
319 what really goes into this space. */
fe37c7af
MM		 320 SET_TYPE_ALIGN (types[IOPARM_type_pad], MAX (TYPE_ALIGN (pchar_type_node),
321 TYPE_ALIGN (gfc_get_int_type (gfc_intio_kind))));
7ae99337 322
5e805e44 323 for (ptype = IOPARM_ptype_common; ptype < IOPARM_ptype_num; ptype++)
09639a83 324 gfc_build_st_parameter ((enum ioparam_type) ptype, types);
6de9cd9a 325
6eb6875d 326 /* Define the transfer functions. */
6de9cd9a 327
5e805e44
JJ		 328 dt_parm_type = build_pointer_type (st_parameter[IOPARM_ptype_dt].type);
329
3f34855a
TB		 330 iocall[IOCALL_X_INTEGER] = gfc_build_library_function_decl_with_spec (
331 get_identifier (PREFIX("transfer_integer")), ".wW",
332 void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_int4_type_node);
333
6eb6875d
TK		 334 iocall[IOCALL_X_INTEGER_WRITE] = gfc_build_library_function_decl_with_spec (
335 get_identifier (PREFIX("transfer_integer_write")), ".wR",
336 void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_int4_type_node);
337
3f34855a
TB		 338 iocall[IOCALL_X_LOGICAL] = gfc_build_library_function_decl_with_spec (
339 get_identifier (PREFIX("transfer_logical")), ".wW",
340 void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_int4_type_node);
341
6eb6875d
TK		 342 iocall[IOCALL_X_LOGICAL_WRITE] = gfc_build_library_function_decl_with_spec (
343 get_identifier (PREFIX("transfer_logical_write")), ".wR",
344 void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_int4_type_node);
345
3f34855a
TB		 346 iocall[IOCALL_X_CHARACTER] = gfc_build_library_function_decl_with_spec (
347 get_identifier (PREFIX("transfer_character")), ".wW",
f622221a 348 void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_charlen_type_node);
3f34855a 349
6eb6875d
TK		 350 iocall[IOCALL_X_CHARACTER_WRITE] = gfc_build_library_function_decl_with_spec (
351 get_identifier (PREFIX("transfer_character_write")), ".wR",
f622221a 352 void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_charlen_type_node);
6eb6875d 353
3f34855a
TB		 354 iocall[IOCALL_X_CHARACTER_WIDE] = gfc_build_library_function_decl_with_spec (
355 get_identifier (PREFIX("transfer_character_wide")), ".wW",
356 void_type_node, 4, dt_parm_type, pvoid_type_node,
357 gfc_charlen_type_node, gfc_int4_type_node);
358
6eb6875d
TK		 359 iocall[IOCALL_X_CHARACTER_WIDE_WRITE] =
360 gfc_build_library_function_decl_with_spec (
361 get_identifier (PREFIX("transfer_character_wide_write")), ".wR",
362 void_type_node, 4, dt_parm_type, pvoid_type_node,
363 gfc_charlen_type_node, gfc_int4_type_node);
364
3f34855a
TB		 365 iocall[IOCALL_X_REAL] = gfc_build_library_function_decl_with_spec (
366 get_identifier (PREFIX("transfer_real")), ".wW",
367 void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_int4_type_node);
368
6eb6875d
TK		 369 iocall[IOCALL_X_REAL_WRITE] = gfc_build_library_function_decl_with_spec (
370 get_identifier (PREFIX("transfer_real_write")), ".wR",
371 void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_int4_type_node);
372
3f34855a
TB		 373 iocall[IOCALL_X_COMPLEX] = gfc_build_library_function_decl_with_spec (
374 get_identifier (PREFIX("transfer_complex")), ".wW",
375 void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_int4_type_node);
376
6eb6875d
TK		 377 iocall[IOCALL_X_COMPLEX_WRITE] = gfc_build_library_function_decl_with_spec (
378 get_identifier (PREFIX("transfer_complex_write")), ".wR",
379 void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_int4_type_node);
380
1ec601bf
FXC		 381 /* Version for __float128. */
382 iocall[IOCALL_X_REAL128] = gfc_build_library_function_decl_with_spec (
383 get_identifier (PREFIX("transfer_real128")), ".wW",
384 void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_int4_type_node);
385
386 iocall[IOCALL_X_REAL128_WRITE] = gfc_build_library_function_decl_with_spec (
387 get_identifier (PREFIX("transfer_real128_write")), ".wR",
388 void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_int4_type_node);
389
390 iocall[IOCALL_X_COMPLEX128] = gfc_build_library_function_decl_with_spec (
391 get_identifier (PREFIX("transfer_complex128")), ".wW",
392 void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_int4_type_node);
393
394 iocall[IOCALL_X_COMPLEX128_WRITE] = gfc_build_library_function_decl_with_spec (
395 get_identifier (PREFIX("transfer_complex128_write")), ".wR",
396 void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_int4_type_node);
397
3f34855a 398 iocall[IOCALL_X_ARRAY] = gfc_build_library_function_decl_with_spec (
d4d9b0a6 399 get_identifier (PREFIX("transfer_array")), ".ww",
3f34855a
TB		 400 void_type_node, 4, dt_parm_type, pvoid_type_node,
401 integer_type_node, gfc_charlen_type_node);
18623fae 402
6eb6875d
TK		 403 iocall[IOCALL_X_ARRAY_WRITE] = gfc_build_library_function_decl_with_spec (
404 get_identifier (PREFIX("transfer_array_write")), ".wr",
405 void_type_node, 4, dt_parm_type, pvoid_type_node,
406 integer_type_node, gfc_charlen_type_node);
407
e73d3ca6
PT		 408 iocall[IOCALL_X_DERIVED] = gfc_build_library_function_decl_with_spec (
409 get_identifier (PREFIX("transfer_derived")), ".wrR",
410 void_type_node, 2, dt_parm_type, pvoid_type_node, pchar_type_node);
411
6de9cd9a
DN		 412 /* Library entry points */
413
3f34855a
TB		 414 iocall[IOCALL_READ] = gfc_build_library_function_decl_with_spec (
415 get_identifier (PREFIX("st_read")), ".w",
416 void_type_node, 1, dt_parm_type);
6de9cd9a 417
3f34855a
TB		 418 iocall[IOCALL_WRITE] = gfc_build_library_function_decl_with_spec (
419 get_identifier (PREFIX("st_write")), ".w",
420 void_type_node, 1, dt_parm_type);
5e805e44
JJ		 421
422 parm_type = build_pointer_type (st_parameter[IOPARM_ptype_open].type);
3f34855a
TB		 423 iocall[IOCALL_OPEN] = gfc_build_library_function_decl_with_spec (
424 get_identifier (PREFIX("st_open")), ".w",
425 void_type_node, 1, parm_type);
5e805e44
JJ		 426
427 parm_type = build_pointer_type (st_parameter[IOPARM_ptype_close].type);
3f34855a
TB		 428 iocall[IOCALL_CLOSE] = gfc_build_library_function_decl_with_spec (
429 get_identifier (PREFIX("st_close")), ".w",
430 void_type_node, 1, parm_type);
6de9cd9a 431
5e805e44 432 parm_type = build_pointer_type (st_parameter[IOPARM_ptype_inquire].type);
3f34855a
TB		 433 iocall[IOCALL_INQUIRE] = gfc_build_library_function_decl_with_spec (
434 get_identifier (PREFIX("st_inquire")), ".w",
a19d2b95 435 void_type_node, 1, parm_type);
6de9cd9a 436
3f34855a
TB		 437 iocall[IOCALL_IOLENGTH] = gfc_build_library_function_decl_with_spec(
438 get_identifier (PREFIX("st_iolength")), ".w",
439 void_type_node, 1, dt_parm_type);
8750f9cd 440
6f0f0b2e 441 parm_type = build_pointer_type (st_parameter[IOPARM_ptype_wait].type);
3f34855a 442 iocall[IOCALL_WAIT] = gfc_build_library_function_decl_with_spec (
2b4c9065 443 get_identifier (PREFIX("st_wait_async")), ".w",
a19d2b95 444 void_type_node, 1, parm_type);
6f0f0b2e 445
5e805e44 446 parm_type = build_pointer_type (st_parameter[IOPARM_ptype_filepos].type);
3f34855a
TB		 447 iocall[IOCALL_REWIND] = gfc_build_library_function_decl_with_spec (
448 get_identifier (PREFIX("st_rewind")), ".w",
a19d2b95 449 void_type_node, 1, parm_type);
6de9cd9a 450
3f34855a
TB		 451 iocall[IOCALL_BACKSPACE] = gfc_build_library_function_decl_with_spec (
452 get_identifier (PREFIX("st_backspace")), ".w",
a19d2b95 453 void_type_node, 1, parm_type);
6de9cd9a 454
3f34855a
TB		 455 iocall[IOCALL_ENDFILE] = gfc_build_library_function_decl_with_spec (
456 get_identifier (PREFIX("st_endfile")), ".w",
a19d2b95 457 void_type_node, 1, parm_type);
6403ec5f 458
3f34855a
TB		 459 iocall[IOCALL_FLUSH] = gfc_build_library_function_decl_with_spec (
460 get_identifier (PREFIX("st_flush")), ".w",
a19d2b95 461 void_type_node, 1, parm_type);
6403ec5f 462
6de9cd9a
DN		 463 /* Library helpers */
464
3f34855a
TB		 465 iocall[IOCALL_READ_DONE] = gfc_build_library_function_decl_with_spec (
466 get_identifier (PREFIX("st_read_done")), ".w",
a19d2b95 467 void_type_node, 1, dt_parm_type);
8750f9cd 468
3f34855a
TB		 469 iocall[IOCALL_WRITE_DONE] = gfc_build_library_function_decl_with_spec (
470 get_identifier (PREFIX("st_write_done")), ".w",
a19d2b95 471 void_type_node, 1, dt_parm_type);
8750f9cd 472
3f34855a
TB		 473 iocall[IOCALL_IOLENGTH_DONE] = gfc_build_library_function_decl_with_spec (
474 get_identifier (PREFIX("st_iolength_done")), ".w",
a19d2b95 475 void_type_node, 1, dt_parm_type);
6de9cd9a 476
3f34855a
TB		 477 iocall[IOCALL_SET_NML_VAL] = gfc_build_library_function_decl_with_spec (
478 get_identifier (PREFIX("st_set_nml_var")), ".w.R",
479 void_type_node, 6, dt_parm_type, pvoid_type_node, pvoid_type_node,
7fb43006 480 gfc_int4_type_node, gfc_charlen_type_node, get_dtype_type_node());
6de9cd9a 481
e73d3ca6
PT		 482 iocall[IOCALL_SET_NML_DTIO_VAL] = gfc_build_library_function_decl_with_spec (
483 get_identifier (PREFIX("st_set_nml_dtio_var")), ".w.R",
484 void_type_node, 8, dt_parm_type, pvoid_type_node, pvoid_type_node,
7fb43006 485 gfc_int4_type_node, gfc_charlen_type_node, get_dtype_type_node(),
e73d3ca6
PT		 486 pvoid_type_node, pvoid_type_node);
487
3f34855a
TB		 488 iocall[IOCALL_SET_NML_VAL_DIM] = gfc_build_library_function_decl_with_spec (
489 get_identifier (PREFIX("st_set_nml_var_dim")), ".w",
490 void_type_node, 5, dt_parm_type, gfc_int4_type_node,
491 gfc_array_index_type, gfc_array_index_type, gfc_array_index_type);
6de9cd9a
DN		 492}
493
494
e73d3ca6
PT		 495static void
496set_parameter_tree (stmtblock_t *block, tree var, enum iofield type, tree value)
5e805e44
JJ		 497{
498 tree tmp;
499 gfc_st_parameter_field *p = &st_parameter_field[type];
500
501 if (p->param_type == IOPARM_ptype_common)
65a9ca82
TB		 502 var = fold_build3_loc (input_location, COMPONENT_REF,
503 st_parameter[IOPARM_ptype_common].type,
504 var, TYPE_FIELDS (TREE_TYPE (var)), NULL_TREE);
505 tmp = fold_build3_loc (input_location, COMPONENT_REF, TREE_TYPE (p->field),
506 var, p->field, NULL_TREE);
e73d3ca6
PT		 507 gfc_add_modify (block, tmp, value);
508}
509
510
511/* Generate code to store an integer constant into the
512 st_parameter_XXX structure. */
513
514static unsigned int
515set_parameter_const (stmtblock_t *block, tree var, enum iofield type,
516 unsigned int val)
517{
518 gfc_st_parameter_field *p = &st_parameter_field[type];
519
520 set_parameter_tree (block, var, type,
521 build_int_cst (TREE_TYPE (p->field), val));
5e805e44
JJ		 522 return p->mask;
523}
524
525
49de9e73 526/* Generate code to store a non-string I/O parameter into the
5e805e44 527 st_parameter_XXX structure. This is a pass by value. */
6de9cd9a 528
5e805e44 529static unsigned int
e344505c
JD		 530set_parameter_value (stmtblock_t *block, tree var, enum iofield type,
531 gfc_expr *e)
532{
533 gfc_se se;
534 tree tmp;
535 gfc_st_parameter_field *p = &st_parameter_field[type];
536 tree dest_type = TREE_TYPE (p->field);
537
538 gfc_init_se (&se, NULL);
539 gfc_conv_expr_val (&se, e);
540
541 se.expr = convert (dest_type, se.expr);
542 gfc_add_block_to_block (block, &se.pre);
543
544 if (p->param_type == IOPARM_ptype_common)
545 var = fold_build3_loc (input_location, COMPONENT_REF,
546 st_parameter[IOPARM_ptype_common].type,
547 var, TYPE_FIELDS (TREE_TYPE (var)), NULL_TREE);
548
549 tmp = fold_build3_loc (input_location, COMPONENT_REF, dest_type, var,
550 p->field, NULL_TREE);
551 gfc_add_modify (block, tmp, se.expr);
552 return p->mask;
553}
554
555
556/* Similar to set_parameter_value except generate runtime
557 error checks. */
558
559static unsigned int
560set_parameter_value_chk (stmtblock_t *block, bool has_iostat, tree var,
ed9c79e1 561 enum iofield type, gfc_expr *e)
6de9cd9a
DN		 562{
563 gfc_se se;
564 tree tmp;
5e805e44 565 gfc_st_parameter_field *p = &st_parameter_field[type];
f96d606f 566 tree dest_type = TREE_TYPE (p->field);
6de9cd9a
DN		 567
568 gfc_init_se (&se, NULL);
f96d606f
JD		 569 gfc_conv_expr_val (&se, e);
570
571 /* If we're storing a UNIT number, we need to check it first. */
9ad55c33 572 if (type == IOPARM_common_unit && e->ts.kind > 4)
f96d606f 573 {
9ad55c33 574 tree cond, val;
f96d606f
JD		 575 int i;
576
f96d606f
JD		 577 /* Don't evaluate the UNIT number multiple times. */
578 se.expr = gfc_evaluate_now (se.expr, &se.pre);
579
9ad55c33
JD		 580 /* UNIT numbers should be greater than the min. */
581 i = gfc_validate_kind (BT_INTEGER, 4, false);
582 val = gfc_conv_mpz_to_tree (gfc_integer_kinds[i].pedantic_min_int, 4);
63ee5404 583 cond = fold_build2_loc (input_location, LT_EXPR, logical_type_node,
65a9ca82
TB		 584 se.expr,
585 fold_convert (TREE_TYPE (se.expr), val));
ed9c79e1
JJ		 586 gfc_trans_io_runtime_check (has_iostat, cond, var, LIBERROR_BAD_UNIT,
587 "Unit number in I/O statement too small",
588 &se.pre);
8019105d 589
f96d606f 590 /* UNIT numbers should be less than the max. */
9ad55c33 591 val = gfc_conv_mpz_to_tree (gfc_integer_kinds[i].huge, 4);
63ee5404 592 cond = fold_build2_loc (input_location, GT_EXPR, logical_type_node,
65a9ca82
TB		 593 se.expr,
594 fold_convert (TREE_TYPE (se.expr), val));
ed9c79e1
JJ		 595 gfc_trans_io_runtime_check (has_iostat, cond, var, LIBERROR_BAD_UNIT,
596 "Unit number in I/O statement too large",
597 &se.pre);
f96d606f
JD		 598 }
599
600 se.expr = convert (dest_type, se.expr);
6de9cd9a
DN		 601 gfc_add_block_to_block (block, &se.pre);
602
5e805e44 603 if (p->param_type == IOPARM_ptype_common)
65a9ca82
TB		 604 var = fold_build3_loc (input_location, COMPONENT_REF,
605 st_parameter[IOPARM_ptype_common].type,
606 var, TYPE_FIELDS (TREE_TYPE (var)), NULL_TREE);
f96d606f 607
65a9ca82
TB		 608 tmp = fold_build3_loc (input_location, COMPONENT_REF, dest_type, var,
609 p->field, NULL_TREE);
726a989a 610 gfc_add_modify (block, tmp, se.expr);
5e805e44 611 return p->mask;
6de9cd9a
DN		 612}
613
614
e344505c
JD		 615/* Build code to check the unit range if KIND=8 is used. Similar to
616 set_parameter_value_chk but we do not generate error calls for
617 inquire statements. */
618
619static unsigned int
620set_parameter_value_inquire (stmtblock_t *block, tree var,
621 enum iofield type, gfc_expr *e)
622{
623 gfc_se se;
624 gfc_st_parameter_field *p = &st_parameter_field[type];
625 tree dest_type = TREE_TYPE (p->field);
626
627 gfc_init_se (&se, NULL);
628 gfc_conv_expr_val (&se, e);
629
630 /* If we're inquiring on a UNIT number, we need to check to make
631 sure it exists for larger than kind = 4. */
632 if (type == IOPARM_common_unit && e->ts.kind > 4)
633 {
634 stmtblock_t newblock;
635 tree cond1, cond2, cond3, val, body;
636 int i;
637
638 /* Don't evaluate the UNIT number multiple times. */
639 se.expr = gfc_evaluate_now (se.expr, &se.pre);
640
55ebc31f 641 /* UNIT numbers should be greater than the min. */
e344505c 642 i = gfc_validate_kind (BT_INTEGER, 4, false);
55ebc31f 643 val = gfc_conv_mpz_to_tree (gfc_integer_kinds[i].pedantic_min_int, 4);
63ee5404 644 cond1 = build2_loc (input_location, LT_EXPR, logical_type_node,
e344505c 645 se.expr,
55ebc31f 646 fold_convert (TREE_TYPE (se.expr), val));
e344505c
JD		 647 /* UNIT numbers should be less than the max. */
648 val = gfc_conv_mpz_to_tree (gfc_integer_kinds[i].huge, 4);
63ee5404 649 cond2 = build2_loc (input_location, GT_EXPR, logical_type_node,
e344505c
JD		 650 se.expr,
651 fold_convert (TREE_TYPE (se.expr), val));
652 cond3 = build2_loc (input_location, TRUTH_OR_EXPR,
63ee5404 653 logical_type_node, cond1, cond2);
e344505c
JD		 654
655 gfc_start_block (&newblock);
656
657 /* The unit number GFC_INVALID_UNIT is reserved. No units can
658 ever have this value. It is used here to signal to the
659 runtime library that the inquire unit number is outside the
660 allowable range and so cannot exist. It is needed when
661 -fdefault-integer-8 is used. */
662 set_parameter_const (&newblock, var, IOPARM_common_unit,
663 GFC_INVALID_UNIT);
664
665 body = gfc_finish_block (&newblock);
666
e73d3ca6 667 cond3 = gfc_unlikely (cond3, PRED_FORTRAN_FAIL_IO);
e344505c
JD		 668 var = build3_v (COND_EXPR, cond3, body, build_empty_stmt (input_location));
669 gfc_add_expr_to_block (&se.pre, var);
670 }
671
672 se.expr = convert (dest_type, se.expr);
673 gfc_add_block_to_block (block, &se.pre);
674
675 return p->mask;
676}
677
678
49de9e73 679/* Generate code to store a non-string I/O parameter into the
5e805e44 680 st_parameter_XXX structure. This is pass by reference. */
6de9cd9a 681
5e805e44
JJ		 682static unsigned int
683set_parameter_ref (stmtblock_t *block, stmtblock_t *postblock,
684 tree var, enum iofield type, gfc_expr *e)
6de9cd9a
DN		 685{
686 gfc_se se;
5e805e44
JJ		 687 tree tmp, addr;
688 gfc_st_parameter_field *p = &st_parameter_field[type];
6de9cd9a 689
5e805e44 690 gcc_assert (e->ts.type == BT_INTEGER || e->ts.type == BT_LOGICAL);
6de9cd9a 691 gfc_init_se (&se, NULL);
5e805e44 692 gfc_conv_expr_lhs (&se, e);
6de9cd9a 693
6de9cd9a
DN		 694 gfc_add_block_to_block (block, &se.pre);
695
5e805e44
JJ		 696 if (TYPE_MODE (TREE_TYPE (se.expr))
697 == TYPE_MODE (TREE_TYPE (TREE_TYPE (p->field))))
f96d606f 698 {
628c189e 699 addr = convert (TREE_TYPE (p->field), gfc_build_addr_expr (NULL_TREE, se.expr));
f96d606f
JD		 700
701 /* If this is for the iostat variable initialize the
d74b97cc 702 user variable to LIBERROR_OK which is zero. */
f96d606f 703 if (type == IOPARM_common_iostat)
726a989a 704 gfc_add_modify (block, se.expr,
d74b97cc 705 build_int_cst (TREE_TYPE (se.expr), LIBERROR_OK));
f96d606f 706 }
5e805e44
JJ		 707 else
708 {
709 /* The type used by the library has different size
f96d606f
JD		 710 from the type of the variable supplied by the user.
711 Need to use a temporary. */
712 tree tmpvar = gfc_create_var (TREE_TYPE (TREE_TYPE (p->field)),
713 st_parameter_field[type].name);
714
715 /* If this is for the iostat variable, initialize the
d74b97cc 716 user variable to LIBERROR_OK which is zero. */
f96d606f 717 if (type == IOPARM_common_iostat)
726a989a 718 gfc_add_modify (block, tmpvar,
d74b97cc 719 build_int_cst (TREE_TYPE (tmpvar), LIBERROR_OK));
f96d606f 720
628c189e 721 addr = gfc_build_addr_expr (NULL_TREE, tmpvar);
f96d606f 722 /* After the I/O operation, we set the variable from the temporary. */
5e805e44 723 tmp = convert (TREE_TYPE (se.expr), tmpvar);
726a989a 724 gfc_add_modify (postblock, se.expr, tmp);
f96d606f 725 }
5e805e44 726
e73d3ca6 727 set_parameter_tree (block, var, type, addr);
5e805e44 728 return p->mask;
6de9cd9a
DN		 729}
730
d3642f89
FW		 731/* Given an array expr, find its address and length to get a string. If the
732 array is full, the string's address is the address of array's first element
7e279142 733 and the length is the size of the whole array. If it is an element, the
d3642f89 734 string's address is the element's address and the length is the rest size of
7e279142 735 the array. */
d3642f89
FW		 736
737static void
738gfc_convert_array_to_string (gfc_se * se, gfc_expr * e)
739{
d3642f89 740 tree size;
d3642f89 741
7e279142 742 if (e->rank == 0)
d3642f89 743 {
7e279142
JJ		 744 tree type, array, tmp;
745 gfc_symbol *sym;
746 int rank;
747
748 /* If it is an element, we need its address and size of the rest. */
749 gcc_assert (e->expr_type == EXPR_VARIABLE);
750 gcc_assert (e->ref->u.ar.type == AR_ELEMENT);
751 sym = e->symtree->n.sym;
752 rank = sym->as->rank - 1;
d3642f89 753 gfc_conv_expr (se, e);
d3642f89 754
7e279142
JJ		 755 array = sym->backend_decl;
756 type = TREE_TYPE (array);
d3642f89 757
7e279142
JJ		 758 if (GFC_ARRAY_TYPE_P (type))
759 size = GFC_TYPE_ARRAY_SIZE (type);
760 else
761 {
762 gcc_assert (GFC_DESCRIPTOR_TYPE_P (type));
763 size = gfc_conv_array_stride (array, rank);
65a9ca82
TB		 764 tmp = fold_build2_loc (input_location, MINUS_EXPR,
765 gfc_array_index_type,
766 gfc_conv_array_ubound (array, rank),
767 gfc_conv_array_lbound (array, rank));
768 tmp = fold_build2_loc (input_location, PLUS_EXPR,
769 gfc_array_index_type, tmp,
770 gfc_index_one_node);
771 size = fold_build2_loc (input_location, MULT_EXPR,
772 gfc_array_index_type, tmp, size);
7e279142
JJ		 773 }
774 gcc_assert (size);
d3642f89 775
65a9ca82
TB		 776 size = fold_build2_loc (input_location, MINUS_EXPR,
777 gfc_array_index_type, size,
778 TREE_OPERAND (se->expr, 1));
628c189e 779 se->expr = gfc_build_addr_expr (NULL_TREE, se->expr);
7e279142 780 tmp = TYPE_SIZE_UNIT (gfc_get_element_type (type));
65a9ca82
TB		 781 size = fold_build2_loc (input_location, MULT_EXPR,
782 gfc_array_index_type, size,
783 fold_convert (gfc_array_index_type, tmp));
7e279142
JJ		 784 se->string_length = fold_convert (gfc_charlen_type_node, size);
785 return;
d3642f89
FW		 786 }
787
2960a368 788 gfc_conv_array_parameter (se, e, true, NULL, NULL, &size);
d3642f89
FW		 789 se->string_length = fold_convert (gfc_charlen_type_node, size);
790}
6de9cd9a 791
109b0ac2 792
6de9cd9a 793/* Generate code to store a string and its length into the
5e805e44 794 st_parameter_XXX structure. */
6de9cd9a 795
5e805e44 796static unsigned int
6de9cd9a 797set_string (stmtblock_t * block, stmtblock_t * postblock, tree var,
5e805e44 798 enum iofield type, gfc_expr * e)
6de9cd9a
DN		 799{
800 gfc_se se;
801 tree tmp;
6de9cd9a
DN		 802 tree io;
803 tree len;
5e805e44 804 gfc_st_parameter_field *p = &st_parameter_field[type];
6de9cd9a
DN		 805
806 gfc_init_se (&se, NULL);
6de9cd9a 807
5e805e44 808 if (p->param_type == IOPARM_ptype_common)
65a9ca82
TB		 809 var = fold_build3_loc (input_location, COMPONENT_REF,
810 st_parameter[IOPARM_ptype_common].type,
811 var, TYPE_FIELDS (TREE_TYPE (var)), NULL_TREE);
812 io = fold_build3_loc (input_location, COMPONENT_REF, TREE_TYPE (p->field),
44855d8c 813 var, p->field, NULL_TREE);
65a9ca82
TB		 814 len = fold_build3_loc (input_location, COMPONENT_REF,
815 TREE_TYPE (p->field_len),
816 var, p->field_len, NULL_TREE);
6de9cd9a 817
7ab92584 818 /* Integer variable assigned a format label. */
7e279142
JJ		 819 if (e->ts.type == BT_INTEGER
820 && e->rank == 0
821 && e->symtree->n.sym->attr.assign == 1)
6de9cd9a 822 {
dd18a33b 823 char * msg;
c8fe94c7 824 tree cond;
dd18a33b 825
ce2df7c6 826 gfc_conv_label_variable (&se, e);
6de9cd9a 827 tmp = GFC_DECL_STRING_LEN (se.expr);
63ee5404 828 cond = fold_build2_loc (input_location, LT_EXPR, logical_type_node,
65a9ca82 829 tmp, build_int_cst (TREE_TYPE (tmp), 0));
dd18a33b 830
1a33dc9e
UB		 831 msg = xasprintf ("Label assigned to variable '%s' (%%ld) is not a format "
832 "label", e->symtree->name);
0d52899f 833 gfc_trans_runtime_check (true, false, cond, &se.pre, &e->where, msg,
c8fe94c7 834 fold_convert (long_integer_type_node, tmp));
cede9502 835 free (msg);
dd18a33b 836
726a989a 837 gfc_add_modify (&se.pre, io,
b078dfbf 838 fold_convert (TREE_TYPE (io), GFC_DECL_ASSIGN_ADDR (se.expr)));
726a989a 839 gfc_add_modify (&se.pre, len, GFC_DECL_STRING_LEN (se.expr));
6de9cd9a
DN		 840 }
841 else
842 {
d3642f89
FW		 843 /* General character. */
844 if (e->ts.type == BT_CHARACTER && e->rank == 0)
845 gfc_conv_expr (&se, e);
846 /* Array assigned Hollerith constant or character array. */
7e279142 847 else if (e->rank > 0 || (e->symtree && e->symtree->n.sym->as->rank > 0))
d3642f89
FW		 848 gfc_convert_array_to_string (&se, e);
849 else
850 gcc_unreachable ();
851
6de9cd9a 852 gfc_conv_string_parameter (&se);
726a989a 853 gfc_add_modify (&se.pre, io, fold_convert (TREE_TYPE (io), se.expr));
f622221a
JB		 854 gfc_add_modify (&se.pre, len, fold_convert (TREE_TYPE (len),
855 se.string_length));
6de9cd9a
DN		 856 }
857
858 gfc_add_block_to_block (block, &se.pre);
859 gfc_add_block_to_block (postblock, &se.post);
5e805e44 860 return p->mask;
6de9cd9a
DN		 861}
862
863
109b0ac2
PT		 864/* Generate code to store the character (array) and the character length
865 for an internal unit. */
866
5e805e44 867static unsigned int
d4feb3d3
PT		 868set_internal_unit (stmtblock_t * block, stmtblock_t * post_block,
869 tree var, gfc_expr * e)
109b0ac2
PT		 870{
871 gfc_se se;
872 tree io;
873 tree len;
874 tree desc;
875 tree tmp;
5e805e44
JJ		 876 gfc_st_parameter_field *p;
877 unsigned int mask;
109b0ac2
PT		 878
879 gfc_init_se (&se, NULL);
880
5e805e44
JJ		 881 p = &st_parameter_field[IOPARM_dt_internal_unit];
882 mask = p->mask;
65a9ca82
TB		 883 io = fold_build3_loc (input_location, COMPONENT_REF, TREE_TYPE (p->field),
884 var, p->field, NULL_TREE);
885 len = fold_build3_loc (input_location, COMPONENT_REF, TREE_TYPE (p->field_len),
886 var, p->field_len, NULL_TREE);
5e805e44 887 p = &st_parameter_field[IOPARM_dt_internal_unit_desc];
65a9ca82
TB		 888 desc = fold_build3_loc (input_location, COMPONENT_REF, TREE_TYPE (p->field),
889 var, p->field, NULL_TREE);
109b0ac2
PT		 890
891 gcc_assert (e->ts.type == BT_CHARACTER);
892
893 /* Character scalars. */
894 if (e->rank == 0)
895 {
896 gfc_conv_expr (&se, e);
897 gfc_conv_string_parameter (&se);
898 tmp = se.expr;
c3238e32 899 se.expr = build_int_cst (pchar_type_node, 0);
109b0ac2
PT		 900 }
901
902 /* Character array. */
64db4d29 903 else if (e->rank > 0)
109b0ac2 904 {
1d6b7f39 905 if (is_subref_array (e))
d4feb3d3
PT		 906 {
907 /* Use a temporary for components of arrays of derived types
908 or substring array references. */
1d6b7f39 909 gfc_conv_subref_array_arg (&se, e, 0,
430f2d1f 910 last_dt == READ ? INTENT_IN : INTENT_OUT, false);
db3927fb
AH		 911 tmp = build_fold_indirect_ref_loc (input_location,
912 se.expr);
d4feb3d3
PT		 913 se.expr = gfc_build_addr_expr (pchar_type_node, tmp);
914 tmp = gfc_conv_descriptor_data_get (tmp);
915 }
916 else
917 {
918 /* Return the data pointer and rank from the descriptor. */
2960a368 919 gfc_conv_expr_descriptor (&se, e);
d4feb3d3
PT		 920 tmp = gfc_conv_descriptor_data_get (se.expr);
921 se.expr = gfc_build_addr_expr (pchar_type_node, se.expr);
922 }
109b0ac2
PT		 923 }
924 else
925 gcc_unreachable ();
926
927 /* The cast is needed for character substrings and the descriptor
928 data. */
726a989a
RB		 929 gfc_add_modify (&se.pre, io, fold_convert (TREE_TYPE (io), tmp));
930 gfc_add_modify (&se.pre, len,
d4feb3d3 931 fold_convert (TREE_TYPE (len), se.string_length));
726a989a 932 gfc_add_modify (&se.pre, desc, se.expr);
109b0ac2
PT		 933
934 gfc_add_block_to_block (block, &se.pre);
d4feb3d3 935 gfc_add_block_to_block (post_block, &se.post);
5e805e44 936 return mask;
109b0ac2
PT		 937}
938
6de9cd9a
DN		 939/* Add a case to a IO-result switch. */
940
941static void
942add_case (int label_value, gfc_st_label * label, stmtblock_t * body)
943{
944 tree tmp, value;
945
946 if (label == NULL)
947 return; /* No label, no case */
948
df09d1d5 949 value = build_int_cst (integer_type_node, label_value);
6de9cd9a
DN		 950
951 /* Make a backend label for this case. */
c006df4e 952 tmp = gfc_build_label_decl (NULL_TREE);
6de9cd9a
DN		 953
954 /* And the case itself. */
3d528853 955 tmp = build_case_label (value, NULL_TREE, tmp);
6de9cd9a
DN		 956 gfc_add_expr_to_block (body, tmp);
957
958 /* Jump to the label. */
959 tmp = build1_v (GOTO_EXPR, gfc_get_label_decl (label));
960 gfc_add_expr_to_block (body, tmp);
961}
962
963
964/* Generate a switch statement that branches to the correct I/O
965 result label. The last statement of an I/O call stores the
966 result into a variable because there is often cleanup that
967 must be done before the switch, so a temporary would have to
968 be created anyway. */
969
970static void
5e805e44 971io_result (stmtblock_t * block, tree var, gfc_st_label * err_label,
6de9cd9a
DN		 972 gfc_st_label * end_label, gfc_st_label * eor_label)
973{
974 stmtblock_t body;
975 tree tmp, rc;
5e805e44 976 gfc_st_parameter_field *p = &st_parameter_field[IOPARM_common_flags];
6de9cd9a
DN		 977
978 /* If no labels are specified, ignore the result instead
979 of building an empty switch. */
980 if (err_label == NULL
981 && end_label == NULL
982 && eor_label == NULL)
983 return;
984
985 /* Build a switch statement. */
986 gfc_start_block (&body);
987
988 /* The label values here must be the same as the values
989 in the library_return enum in the runtime library */
990 add_case (1, err_label, &body);
991 add_case (2, end_label, &body);
992 add_case (3, eor_label, &body);
993
994 tmp = gfc_finish_block (&body);
995
65a9ca82
TB		 996 var = fold_build3_loc (input_location, COMPONENT_REF,
997 st_parameter[IOPARM_ptype_common].type,
998 var, TYPE_FIELDS (TREE_TYPE (var)), NULL_TREE);
999 rc = fold_build3_loc (input_location, COMPONENT_REF, TREE_TYPE (p->field),
1000 var, p->field, NULL_TREE);
1001 rc = fold_build2_loc (input_location, BIT_AND_EXPR, TREE_TYPE (rc),
1002 rc, build_int_cst (TREE_TYPE (rc),
1003 IOPARM_common_libreturn_mask));
6de9cd9a 1004
9e851845 1005 tmp = fold_build2_loc (input_location, SWITCH_EXPR, NULL_TREE, rc, tmp);
6de9cd9a
DN		 1006
1007 gfc_add_expr_to_block (block, tmp);
1008}
1009
1010
1011/* Store the current file and line number to variables so that if a
1012 library call goes awry, we can tell the user where the problem is. */
1013
1014static void
5e805e44 1015set_error_locus (stmtblock_t * block, tree var, locus * where)
6de9cd9a
DN		 1016{
1017 gfc_file *f;
5e805e44 1018 tree str, locus_file;
6de9cd9a 1019 int line;
5e805e44 1020 gfc_st_parameter_field *p = &st_parameter_field[IOPARM_common_filename];
6de9cd9a 1021
65a9ca82
TB		 1022 locus_file = fold_build3_loc (input_location, COMPONENT_REF,
1023 st_parameter[IOPARM_ptype_common].type,
1024 var, TYPE_FIELDS (TREE_TYPE (var)), NULL_TREE);
1025 locus_file = fold_build3_loc (input_location, COMPONENT_REF,
1026 TREE_TYPE (p->field), locus_file,
1027 p->field, NULL_TREE);
d4fa05b9 1028 f = where->lb->file;
5e805e44 1029 str = gfc_build_cstring_const (f->filename);
6de9cd9a 1030
5e805e44 1031 str = gfc_build_addr_expr (pchar_type_node, str);
726a989a 1032 gfc_add_modify (block, locus_file, str);
6de9cd9a 1033
c8cc8542 1034 line = LOCATION_LINE (where->lb->location);
5e805e44 1035 set_parameter_const (block, var, IOPARM_common_line, line);
6de9cd9a
DN		 1036}
1037
1038
1039/* Translate an OPEN statement. */
1040
1041tree
1042gfc_trans_open (gfc_code * code)
1043{
1044 stmtblock_t block, post_block;
1045 gfc_open *p;
5e805e44
JJ		 1046 tree tmp, var;
1047 unsigned int mask = 0;
6de9cd9a 1048
5e805e44 1049 gfc_start_block (&block);
6de9cd9a
DN		 1050 gfc_init_block (&post_block);
1051
5e805e44
JJ		 1052 var = gfc_create_var (st_parameter[IOPARM_ptype_open].type, "open_parm");
1053
1054 set_error_locus (&block, var, &code->loc);
6de9cd9a
DN		 1055 p = code->ext.open;
1056
f96d606f
JD		 1057 if (p->iomsg)
1058 mask |= set_string (&block, &post_block, var, IOPARM_common_iomsg,
1059 p->iomsg);
1060
1061 if (p->iostat)
1062 mask |= set_parameter_ref (&block, &post_block, var, IOPARM_common_iostat,
1063 p->iostat);
1064
1065 if (p->err)
1066 mask |= IOPARM_common_err;
6de9cd9a
DN		 1067
1068 if (p->file)
5e805e44 1069 mask |= set_string (&block, &post_block, var, IOPARM_open_file, p->file);
6de9cd9a
DN		 1070
1071 if (p->status)
5e805e44
JJ		 1072 mask |= set_string (&block, &post_block, var, IOPARM_open_status,
1073 p->status);
6de9cd9a
DN		 1074
1075 if (p->access)
5e805e44
JJ		 1076 mask |= set_string (&block, &post_block, var, IOPARM_open_access,
1077 p->access);
6de9cd9a
DN		 1078
1079 if (p->form)
5e805e44 1080 mask |= set_string (&block, &post_block, var, IOPARM_open_form, p->form);
6de9cd9a
DN		 1081
1082 if (p->recl)
e344505c 1083 mask |= set_parameter_value (&block, var, IOPARM_open_recl_in,
ed9c79e1 1084 p->recl);
6de9cd9a
DN		 1085
1086 if (p->blank)
5e805e44
JJ		 1087 mask |= set_string (&block, &post_block, var, IOPARM_open_blank,
1088 p->blank);
6de9cd9a
DN		 1089
1090 if (p->position)
5e805e44
JJ		 1091 mask |= set_string (&block, &post_block, var, IOPARM_open_position,
1092 p->position);
6de9cd9a
DN		 1093
1094 if (p->action)
5e805e44
JJ		 1095 mask |= set_string (&block, &post_block, var, IOPARM_open_action,
1096 p->action);
6de9cd9a
DN		 1097
1098 if (p->delim)
5e805e44
JJ		 1099 mask |= set_string (&block, &post_block, var, IOPARM_open_delim,
1100 p->delim);
6de9cd9a
DN		 1101
1102 if (p->pad)
5e805e44 1103 mask |= set_string (&block, &post_block, var, IOPARM_open_pad, p->pad);
6de9cd9a 1104
6f0f0b2e
JD		 1105 if (p->decimal)
1106 mask |= set_string (&block, &post_block, var, IOPARM_open_decimal,
1107 p->decimal);
1108
1109 if (p->encoding)
1110 mask |= set_string (&block, &post_block, var, IOPARM_open_encoding,
1111 p->encoding);
1112
1113 if (p->round)
1114 mask |= set_string (&block, &post_block, var, IOPARM_open_round, p->round);
1115
1116 if (p->sign)
1117 mask |= set_string (&block, &post_block, var, IOPARM_open_sign, p->sign);
1118
1119 if (p->asynchronous)
1120 mask |= set_string (&block, &post_block, var, IOPARM_open_asynchronous,
1121 p->asynchronous);
1122
181c9f4a
TK		 1123 if (p->convert)
1124 mask |= set_string (&block, &post_block, var, IOPARM_open_convert,
1125 p->convert);
8019105d 1126
9ad55c33
JD		 1127 if (p->newunit)
1128 mask |= set_parameter_ref (&block, &post_block, var, IOPARM_open_newunit,
1129 p->newunit);
181c9f4a 1130
0ef33d44
FR		 1131 if (p->cc)
1132 mask |= set_string (&block, &post_block, var, IOPARM_open_cc, p->cc);
1133
1134 if (p->share)
1135 mask |= set_string (&block, &post_block, var, IOPARM_open_share, p->share);
1136
1137 mask |= set_parameter_const (&block, var, IOPARM_open_readonly, p->readonly);
1138
5e805e44
JJ		 1139 set_parameter_const (&block, var, IOPARM_common_flags, mask);
1140
f96d606f 1141 if (p->unit)
e344505c 1142 set_parameter_value_chk (&block, p->iostat, var, IOPARM_common_unit, p->unit);
f96d606f
JD		 1143 else
1144 set_parameter_const (&block, var, IOPARM_common_unit, 0);
1145
628c189e 1146 tmp = gfc_build_addr_expr (NULL_TREE, var);
db3927fb
AH		 1147 tmp = build_call_expr_loc (input_location,
1148 iocall[IOCALL_OPEN], 1, tmp);
6de9cd9a
DN		 1149 gfc_add_expr_to_block (&block, tmp);
1150
1151 gfc_add_block_to_block (&block, &post_block);
1152
5e805e44 1153 io_result (&block, var, p->err, NULL, NULL);
6de9cd9a
DN		 1154
1155 return gfc_finish_block (&block);
1156}
1157
1158
1159/* Translate a CLOSE statement. */
1160
1161tree
1162gfc_trans_close (gfc_code * code)
1163{
1164 stmtblock_t block, post_block;
1165 gfc_close *p;
5e805e44
JJ		 1166 tree tmp, var;
1167 unsigned int mask = 0;
6de9cd9a 1168
5e805e44 1169 gfc_start_block (&block);
6de9cd9a
DN		 1170 gfc_init_block (&post_block);
1171
5e805e44
JJ		 1172 var = gfc_create_var (st_parameter[IOPARM_ptype_close].type, "close_parm");
1173
1174 set_error_locus (&block, var, &code->loc);
6de9cd9a
DN		 1175 p = code->ext.close;
1176
7aba8abe 1177 if (p->iomsg)
5e805e44
JJ		 1178 mask |= set_string (&block, &post_block, var, IOPARM_common_iomsg,
1179 p->iomsg);
7aba8abe 1180
6de9cd9a 1181 if (p->iostat)
5e805e44
JJ		 1182 mask |= set_parameter_ref (&block, &post_block, var, IOPARM_common_iostat,
1183 p->iostat);
6de9cd9a
DN		 1184
1185 if (p->err)
5e805e44
JJ		 1186 mask |= IOPARM_common_err;
1187
f96d606f
JD		 1188 if (p->status)
1189 mask |= set_string (&block, &post_block, var, IOPARM_close_status,
1190 p->status);
1191
5e805e44 1192 set_parameter_const (&block, var, IOPARM_common_flags, mask);
6de9cd9a 1193
f96d606f 1194 if (p->unit)
e344505c 1195 set_parameter_value_chk (&block, p->iostat, var, IOPARM_common_unit, p->unit);
f96d606f
JD		 1196 else
1197 set_parameter_const (&block, var, IOPARM_common_unit, 0);
1198
628c189e 1199 tmp = gfc_build_addr_expr (NULL_TREE, var);
db3927fb
AH		 1200 tmp = build_call_expr_loc (input_location,
1201 iocall[IOCALL_CLOSE], 1, tmp);
6de9cd9a
DN		 1202 gfc_add_expr_to_block (&block, tmp);
1203
1204 gfc_add_block_to_block (&block, &post_block);
1205
5e805e44 1206 io_result (&block, var, p->err, NULL, NULL);
6de9cd9a
DN		 1207
1208 return gfc_finish_block (&block);
1209}
1210
1211
1212/* Common subroutine for building a file positioning statement. */
1213
1214static tree
1215build_filepos (tree function, gfc_code * code)
1216{
7aba8abe 1217 stmtblock_t block, post_block;
6de9cd9a 1218 gfc_filepos *p;
5e805e44
JJ		 1219 tree tmp, var;
1220 unsigned int mask = 0;
6de9cd9a
DN		 1221
1222 p = code->ext.filepos;
1223
5e805e44 1224 gfc_start_block (&block);
7aba8abe 1225 gfc_init_block (&post_block);
6de9cd9a 1226
5e805e44
JJ		 1227 var = gfc_create_var (st_parameter[IOPARM_ptype_filepos].type,
1228 "filepos_parm");
1229
1230 set_error_locus (&block, var, &code->loc);
6de9cd9a 1231
7aba8abe 1232 if (p->iomsg)
5e805e44
JJ		 1233 mask |= set_string (&block, &post_block, var, IOPARM_common_iomsg,
1234 p->iomsg);
7aba8abe 1235
6de9cd9a 1236 if (p->iostat)
e344505c
JD		 1237 mask |= set_parameter_ref (&block, &post_block, var,
1238 IOPARM_common_iostat, p->iostat);
6de9cd9a
DN		 1239
1240 if (p->err)
5e805e44
JJ		 1241 mask |= IOPARM_common_err;
1242
1243 set_parameter_const (&block, var, IOPARM_common_flags, mask);
6de9cd9a 1244
f96d606f 1245 if (p->unit)
e344505c
JD		 1246 set_parameter_value_chk (&block, p->iostat, var, IOPARM_common_unit,
1247 p->unit);
f96d606f
JD		 1248 else
1249 set_parameter_const (&block, var, IOPARM_common_unit, 0);
1250
628c189e 1251 tmp = gfc_build_addr_expr (NULL_TREE, var);
db3927fb
AH		 1252 tmp = build_call_expr_loc (input_location,
1253 function, 1, tmp);
6de9cd9a
DN		 1254 gfc_add_expr_to_block (&block, tmp);
1255
7aba8abe
TK		 1256 gfc_add_block_to_block (&block, &post_block);
1257
5e805e44 1258 io_result (&block, var, p->err, NULL, NULL);
6de9cd9a
DN		 1259
1260 return gfc_finish_block (&block);
1261}
1262
1263
1264/* Translate a BACKSPACE statement. */
1265
1266tree
1267gfc_trans_backspace (gfc_code * code)
1268{
5e805e44 1269 return build_filepos (iocall[IOCALL_BACKSPACE], code);
6de9cd9a
DN		 1270}
1271
1272
1273/* Translate an ENDFILE statement. */
1274
1275tree
1276gfc_trans_endfile (gfc_code * code)
1277{
5e805e44 1278 return build_filepos (iocall[IOCALL_ENDFILE], code);
6de9cd9a
DN		 1279}
1280
1281
1282/* Translate a REWIND statement. */
1283
1284tree
1285gfc_trans_rewind (gfc_code * code)
1286{
5e805e44 1287 return build_filepos (iocall[IOCALL_REWIND], code);
6de9cd9a
DN		 1288}
1289
1290
6403ec5f
JB		 1291/* Translate a FLUSH statement. */
1292
1293tree
1294gfc_trans_flush (gfc_code * code)
1295{
5e805e44 1296 return build_filepos (iocall[IOCALL_FLUSH], code);
6403ec5f
JB		 1297}
1298
1299
6de9cd9a
DN		 1300/* Translate the non-IOLENGTH form of an INQUIRE statement. */
1301
1302tree
1303gfc_trans_inquire (gfc_code * code)
1304{
1305 stmtblock_t block, post_block;
1306 gfc_inquire *p;
5e805e44 1307 tree tmp, var;
6f0f0b2e 1308 unsigned int mask = 0, mask2 = 0;
6de9cd9a 1309
5e805e44 1310 gfc_start_block (&block);
6de9cd9a
DN		 1311 gfc_init_block (&post_block);
1312
5e805e44
JJ		 1313 var = gfc_create_var (st_parameter[IOPARM_ptype_inquire].type,
1314 "inquire_parm");
1315
1316 set_error_locus (&block, var, &code->loc);
6de9cd9a
DN		 1317 p = code->ext.inquire;
1318
7aba8abe 1319 if (p->iomsg)
5e805e44
JJ		 1320 mask |= set_string (&block, &post_block, var, IOPARM_common_iomsg,
1321 p->iomsg);
7aba8abe 1322
6de9cd9a 1323 if (p->iostat)
5e805e44
JJ		 1324 mask |= set_parameter_ref (&block, &post_block, var, IOPARM_common_iostat,
1325 p->iostat);
6de9cd9a 1326
f96d606f
JD		 1327 if (p->err)
1328 mask |= IOPARM_common_err;
1329
1330 /* Sanity check. */
1331 if (p->unit && p->file)
1332 gfc_error ("INQUIRE statement at %L cannot contain both FILE and UNIT specifiers", &code->loc);
1333
1334 if (p->file)
1335 mask |= set_string (&block, &post_block, var, IOPARM_inquire_file,
1336 p->file);
1337
6de9cd9a 1338 if (p->exist)
e344505c 1339 mask |= set_parameter_ref (&block, &post_block, var, IOPARM_inquire_exist,
c16dd6a8 1340 p->exist);
6de9cd9a
DN		 1341
1342 if (p->opened)
5e805e44
JJ		 1343 mask |= set_parameter_ref (&block, &post_block, var, IOPARM_inquire_opened,
1344 p->opened);
6de9cd9a
DN		 1345
1346 if (p->number)
5e805e44
JJ		 1347 mask |= set_parameter_ref (&block, &post_block, var, IOPARM_inquire_number,
1348 p->number);
6de9cd9a
DN		 1349
1350 if (p->named)
5e805e44
JJ		 1351 mask |= set_parameter_ref (&block, &post_block, var, IOPARM_inquire_named,
1352 p->named);
6de9cd9a
DN		 1353
1354 if (p->name)
5e805e44
JJ		 1355 mask |= set_string (&block, &post_block, var, IOPARM_inquire_name,
1356 p->name);
6de9cd9a
DN		 1357
1358 if (p->access)
5e805e44
JJ		 1359 mask |= set_string (&block, &post_block, var, IOPARM_inquire_access,
1360 p->access);
6de9cd9a
DN		 1361
1362 if (p->sequential)
5e805e44
JJ		 1363 mask |= set_string (&block, &post_block, var, IOPARM_inquire_sequential,
1364 p->sequential);
6de9cd9a
DN		 1365
1366 if (p->direct)
5e805e44
JJ		 1367 mask |= set_string (&block, &post_block, var, IOPARM_inquire_direct,
1368 p->direct);
6de9cd9a
DN		 1369
1370 if (p->form)
5e805e44
JJ		 1371 mask |= set_string (&block, &post_block, var, IOPARM_inquire_form,
1372 p->form);
6de9cd9a
DN		 1373
1374 if (p->formatted)
5e805e44
JJ		 1375 mask |= set_string (&block, &post_block, var, IOPARM_inquire_formatted,
1376 p->formatted);
6de9cd9a
DN		 1377
1378 if (p->unformatted)
5e805e44
JJ		 1379 mask |= set_string (&block, &post_block, var, IOPARM_inquire_unformatted,
1380 p->unformatted);
6de9cd9a
DN		 1381
1382 if (p->recl)
5e805e44
JJ		 1383 mask |= set_parameter_ref (&block, &post_block, var,
1384 IOPARM_inquire_recl_out, p->recl);
6de9cd9a
DN		 1385
1386 if (p->nextrec)
5e805e44
JJ		 1387 mask |= set_parameter_ref (&block, &post_block, var,
1388 IOPARM_inquire_nextrec, p->nextrec);
6de9cd9a
DN		 1389
1390 if (p->blank)
5e805e44
JJ		 1391 mask |= set_string (&block, &post_block, var, IOPARM_inquire_blank,
1392 p->blank);
6de9cd9a 1393
d06b3496
JD		 1394 if (p->delim)
1395 mask |= set_string (&block, &post_block, var, IOPARM_inquire_delim,
1396 p->delim);
1397
6de9cd9a 1398 if (p->position)
5e805e44
JJ		 1399 mask |= set_string (&block, &post_block, var, IOPARM_inquire_position,
1400 p->position);
6de9cd9a
DN		 1401
1402 if (p->action)
5e805e44
JJ		 1403 mask |= set_string (&block, &post_block, var, IOPARM_inquire_action,
1404 p->action);
6de9cd9a
DN		 1405
1406 if (p->read)
5e805e44
JJ		 1407 mask |= set_string (&block, &post_block, var, IOPARM_inquire_read,
1408 p->read);
6de9cd9a
DN		 1409
1410 if (p->write)
5e805e44
JJ		 1411 mask |= set_string (&block, &post_block, var, IOPARM_inquire_write,
1412 p->write);
6de9cd9a
DN		 1413
1414 if (p->readwrite)
5e805e44
JJ		 1415 mask |= set_string (&block, &post_block, var, IOPARM_inquire_readwrite,
1416 p->readwrite);
6de9cd9a 1417
dae24534 1418 if (p->pad)
5e805e44
JJ		 1419 mask |= set_string (&block, &post_block, var, IOPARM_inquire_pad,
1420 p->pad);
8019105d 1421
181c9f4a
TK		 1422 if (p->convert)
1423 mask |= set_string (&block, &post_block, var, IOPARM_inquire_convert,
1424 p->convert);
1425
014ec6ee
JD		 1426 if (p->strm_pos)
1427 mask |= set_parameter_ref (&block, &post_block, var,
1428 IOPARM_inquire_strm_pos_out, p->strm_pos);
1429
6f0f0b2e
JD		 1430 /* The second series of flags. */
1431 if (p->asynchronous)
1432 mask2 |= set_string (&block, &post_block, var, IOPARM_inquire_asynchronous,
1433 p->asynchronous);
1434
1435 if (p->decimal)
1436 mask2 |= set_string (&block, &post_block, var, IOPARM_inquire_decimal,
1437 p->decimal);
1438
1439 if (p->encoding)
1440 mask2 |= set_string (&block, &post_block, var, IOPARM_inquire_encoding,
1441 p->encoding);
1442
1443 if (p->round)
1444 mask2 |= set_string (&block, &post_block, var, IOPARM_inquire_round,
1445 p->round);
1446
1447 if (p->sign)
1448 mask2 |= set_string (&block, &post_block, var, IOPARM_inquire_sign,
1449 p->sign);
1450
1451 if (p->pending)
1452 mask2 |= set_parameter_ref (&block, &post_block, var,
1453 IOPARM_inquire_pending, p->pending);
1454
1455 if (p->size)
1456 mask2 |= set_parameter_ref (&block, &post_block, var, IOPARM_inquire_size,
1457 p->size);
1458
1459 if (p->id)
d06b3496
JD		 1460 mask2 |= set_parameter_ref (&block, &post_block,var, IOPARM_inquire_id,
1461 p->id);
93e8af19
JD		 1462 if (p->iqstream)
1463 mask2 |= set_string (&block, &post_block, var, IOPARM_inquire_iqstream,
1464 p->iqstream);
6f0f0b2e 1465
0ef33d44
FR		 1466 if (p->share)
1467 mask2 |= set_string (&block, &post_block, var, IOPARM_inquire_share,
1468 p->share);
1469
1470 if (p->cc)
1471 mask2 |= set_string (&block, &post_block, var, IOPARM_inquire_cc, p->cc);
1472
6f0f0b2e 1473 if (mask2)
e1456843 1474 mask |= set_parameter_const (&block, var, IOPARM_inquire_flags2, mask2);
6f0f0b2e 1475
5e805e44 1476 set_parameter_const (&block, var, IOPARM_common_flags, mask);
6de9cd9a 1477
f96d606f 1478 if (p->unit)
e344505c
JD		 1479 {
1480 set_parameter_value (&block, var, IOPARM_common_unit, p->unit);
1481 set_parameter_value_inquire (&block, var, IOPARM_common_unit, p->unit);
1482 }
f96d606f
JD		 1483 else
1484 set_parameter_const (&block, var, IOPARM_common_unit, 0);
1485
628c189e 1486 tmp = gfc_build_addr_expr (NULL_TREE, var);
db3927fb
AH		 1487 tmp = build_call_expr_loc (input_location,
1488 iocall[IOCALL_INQUIRE], 1, tmp);
6de9cd9a
DN		 1489 gfc_add_expr_to_block (&block, tmp);
1490
1491 gfc_add_block_to_block (&block, &post_block);
1492
5e805e44 1493 io_result (&block, var, p->err, NULL, NULL);
6de9cd9a
DN		 1494
1495 return gfc_finish_block (&block);
1496}
1497
6f0f0b2e
JD		 1498
1499tree
1500gfc_trans_wait (gfc_code * code)
1501{
1502 stmtblock_t block, post_block;
1503 gfc_wait *p;
1504 tree tmp, var;
1505 unsigned int mask = 0;
1506
1507 gfc_start_block (&block);
1508 gfc_init_block (&post_block);
1509
1510 var = gfc_create_var (st_parameter[IOPARM_ptype_wait].type,
1511 "wait_parm");
1512
1513 set_error_locus (&block, var, &code->loc);
1514 p = code->ext.wait;
1515
1516 /* Set parameters here. */
1517 if (p->iomsg)
1518 mask |= set_string (&block, &post_block, var, IOPARM_common_iomsg,
1519 p->iomsg);
1520
1521 if (p->iostat)
1522 mask |= set_parameter_ref (&block, &post_block, var, IOPARM_common_iostat,
1523 p->iostat);
1524
1525 if (p->err)
1526 mask |= IOPARM_common_err;
1527
1528 if (p->id)
2b4c9065 1529 mask |= set_parameter_ref (&block, &post_block, var, IOPARM_wait_id, p->id);
6f0f0b2e
JD		 1530
1531 set_parameter_const (&block, var, IOPARM_common_flags, mask);
1532
1533 if (p->unit)
e344505c 1534 set_parameter_value_chk (&block, p->iostat, var, IOPARM_common_unit, p->unit);
6f0f0b2e 1535
628c189e 1536 tmp = gfc_build_addr_expr (NULL_TREE, var);
db3927fb
AH		 1537 tmp = build_call_expr_loc (input_location,
1538 iocall[IOCALL_WAIT], 1, tmp);
6f0f0b2e
JD		 1539 gfc_add_expr_to_block (&block, tmp);
1540
1541 gfc_add_block_to_block (&block, &post_block);
1542
1543 io_result (&block, var, p->err, NULL, NULL);
1544
1545 return gfc_finish_block (&block);
1546
1547}
1548
6de9cd9a 1549
29dc5138 1550/* nml_full_name builds up the fully qualified name of a
3b111bd7 1551 derived type component. '+' is used to denote a type extension. */
29dc5138
PT		 1552
1553static char*
3b111bd7 1554nml_full_name (const char* var_name, const char* cmp_name, bool parent)
6de9cd9a 1555{
29dc5138
PT		 1556 int full_name_length;
1557 char * full_name;
1558
1559 full_name_length = strlen (var_name) + strlen (cmp_name) + 1;
93acb62c 1560 full_name = XCNEWVEC (char, full_name_length + 1);
29dc5138 1561 strcpy (full_name, var_name);
3b111bd7 1562 full_name = strcat (full_name, parent ? "+" : "%");
29dc5138
PT		 1563 full_name = strcat (full_name, cmp_name);
1564 return full_name;
6de9cd9a
DN		 1565}
1566
19d36107 1567
29dc5138
PT		 1568/* nml_get_addr_expr builds an address expression from the
1569 gfc_symbol or gfc_component backend_decl's. An offset is
1570 provided so that the address of an element of an array of
1571 derived types is returned. This is used in the runtime to
66e4ab31 1572 determine that span of the derived type. */
29dc5138
PT		 1573
1574static tree
1575nml_get_addr_expr (gfc_symbol * sym, gfc_component * c,
1576 tree base_addr)
1577{
1578 tree decl = NULL_TREE;
1579 tree tmp;
29dc5138
PT		 1580
1581 if (sym)
1582 {
1583 sym->attr.referenced = 1;
1584 decl = gfc_get_symbol_decl (sym);
847b053d
PT		 1585
1586 /* If this is the enclosing function declaration, use
1587 the fake result instead. */
1588 if (decl == current_function_decl)
1589 decl = gfc_get_fake_result_decl (sym, 0);
1590 else if (decl == DECL_CONTEXT (current_function_decl))
1591 decl = gfc_get_fake_result_decl (sym, 1);
29dc5138
PT		 1592 }
1593 else
1594 decl = c->backend_decl;
1595
d168c883
JJ		 1596 gcc_assert (decl && (TREE_CODE (decl) == FIELD_DECL
1597 || VAR_P (decl)
1598 || TREE_CODE (decl) == PARM_DECL
1599 || TREE_CODE (decl) == COMPONENT_REF));
29dc5138
PT		 1600
1601 tmp = decl;
1602
1603 /* Build indirect reference, if dummy argument. */
1604
19d36107
TB		 1605 if (POINTER_TYPE_P (TREE_TYPE(tmp)))
1606 tmp = build_fold_indirect_ref_loc (input_location, tmp);
29dc5138
PT		 1607
1608 /* Treat the component of a derived type, using base_addr for
1609 the derived type. */
1610
1611 if (TREE_CODE (decl) == FIELD_DECL)
65a9ca82
TB		 1612 tmp = fold_build3_loc (input_location, COMPONENT_REF, TREE_TYPE (tmp),
1613 base_addr, tmp, NULL_TREE);
29dc5138 1614
51cd6b78
JD		 1615 if (GFC_CLASS_TYPE_P (TREE_TYPE (tmp))
1616 && GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_class_data_get (tmp))))
1617 tmp = gfc_class_data_get (tmp);
1618
19d36107
TB		 1619 if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (tmp)))
1620 tmp = gfc_conv_array_data (tmp);
1621 else
1622 {
1623 if (!POINTER_TYPE_P (TREE_TYPE (tmp)))
1624 tmp = gfc_build_addr_expr (NULL_TREE, tmp);
29dc5138 1625
19d36107
TB		 1626 if (TREE_CODE (TREE_TYPE (tmp)) == ARRAY_TYPE)
1627 tmp = gfc_build_array_ref (tmp, gfc_index_zero_node, NULL);
29dc5138 1628
19d36107
TB		 1629 if (!POINTER_TYPE_P (TREE_TYPE (tmp)))
1630 tmp = build_fold_indirect_ref_loc (input_location,
db3927fb 1631 tmp);
19d36107 1632 }
29dc5138
PT		 1633
1634 gcc_assert (tmp && POINTER_TYPE_P (TREE_TYPE (tmp)));
1635
1636 return tmp;
1637}
3bc268e6 1638
19d36107 1639
29dc5138 1640/* For an object VAR_NAME whose base address is BASE_ADDR, generate a
5e805e44
JJ		 1641 call to iocall[IOCALL_SET_NML_VAL]. For derived type variable, recursively
1642 generate calls to iocall[IOCALL_SET_NML_VAL] for each component. */
3bc268e6 1643
29dc5138 1644#define IARG(i) build_int_cst (gfc_array_index_type, i)
3bc268e6
VL		 1645
1646static void
29dc5138
PT		 1647transfer_namelist_element (stmtblock_t * block, const char * var_name,
1648 gfc_symbol * sym, gfc_component * c,
1649 tree base_addr)
3bc268e6 1650{
29dc5138
PT		 1651 gfc_typespec * ts = NULL;
1652 gfc_array_spec * as = NULL;
1653 tree addr_expr = NULL;
1654 tree dt = NULL;
1655 tree string;
1656 tree tmp;
29dc5138 1657 tree dtype;
5e805e44 1658 tree dt_parm_addr;
19d36107 1659 tree decl = NULL_TREE;
0522a84e 1660 tree gfc_int4_type_node = gfc_get_int_type (4);
e73d3ca6
PT		 1661 tree dtio_proc = null_pointer_node;
1662 tree vtable = null_pointer_node;
8019105d 1663 int n_dim;
29dc5138 1664 int rank = 0;
3bc268e6 1665
29dc5138 1666 gcc_assert (sym || c);
3bc268e6 1667
29dc5138
PT		 1668 /* Build the namelist object name. */
1669
1670 string = gfc_build_cstring_const (var_name);
1671 string = gfc_build_addr_expr (pchar_type_node, string);
1672
1673 /* Build ts, as and data address using symbol or component. */
1674
51cd6b78
JD		 1675 ts = sym ? &sym->ts : &c->ts;
1676
1677 if (ts->type != BT_CLASS)
1678 as = sym ? sym->as : c->as;
1679 else
1680 as = sym ? CLASS_DATA (sym)->as : CLASS_DATA (c)->as;
29dc5138
PT		 1681
1682 addr_expr = nml_get_addr_expr (sym, c, base_addr);
1683
1684 if (as)
1685 rank = as->rank;
1686
1687 if (rank)
3bc268e6 1688 {
51cd6b78 1689 decl = sym ? sym->backend_decl : c->backend_decl;
19d36107
TB		 1690 if (sym && sym->attr.dummy)
1691 decl = build_fold_indirect_ref_loc (input_location, decl);
51cd6b78
JD		 1692
1693 if (ts->type == BT_CLASS)
1694 decl = gfc_class_data_get (decl);
19d36107 1695 dt = TREE_TYPE (decl);
29dc5138 1696 dtype = gfc_get_dtype (dt);
3bc268e6 1697 }
29dc5138
PT		 1698 else
1699 {
7fb43006
PT		 1700 dt = gfc_typenode_for_spec (ts);
1701 dtype = gfc_get_dtype_rank_type (0, dt);
3bc268e6
VL		 1702 }
1703
29dc5138
PT		 1704 /* Build up the arguments for the transfer call.
1705 The call for the scalar part transfers:
1706 (address, name, type, kind or string_length, dtype) */
1707
628c189e 1708 dt_parm_addr = gfc_build_addr_expr (NULL_TREE, dt_parm);
29dc5138 1709
e73d3ca6
PT		 1710 /* Check if the derived type has a specific DTIO for the mode.
1711 Note that although namelist io is forbidden to have a format
1712 list, the specific subroutine is of the formatted kind. */
cf474530 1713 if (ts->type == BT_DERIVED || ts->type == BT_CLASS)
e73d3ca6 1714 {
cf474530
JW		 1715 gfc_symbol *derived;
1716 if (ts->type==BT_CLASS)
1717 derived = ts->u.derived->components->ts.u.derived;
1718 else
1719 derived = ts->u.derived;
1720
1721 gfc_symtree *tb_io_st = gfc_find_typebound_dtio_proc (derived,
1722 last_dt == WRITE, true);
1723
1724 if (ts->type == BT_CLASS && tb_io_st)
1725 {
1726 // polymorphic DTIO call (based on the dynamic type)
1727 gfc_se se;
1728 gfc_symtree *st = gfc_find_symtree (sym->ns->sym_root, sym->name);
1729 // build vtable expr
1730 gfc_expr *expr = gfc_get_variable_expr (st);
1731 gfc_add_vptr_component (expr);
1732 gfc_init_se (&se, NULL);
1733 se.want_pointer = 1;
1734 gfc_conv_expr (&se, expr);
1735 vtable = se.expr;
1736 // build dtio expr
1737 gfc_add_component_ref (expr,
1738 tb_io_st->n.tb->u.generic->specific_st->name);
1739 gfc_init_se (&se, NULL);
1740 se.want_pointer = 1;
1741 gfc_conv_expr (&se, expr);
1742 gfc_free_expr (expr);
1743 dtio_proc = se.expr;
1744 }
1745 else
e73d3ca6 1746 {
cf474530
JW		 1747 // non-polymorphic DTIO call (based on the declared type)
1748 gfc_symbol *dtio_sub = gfc_find_specific_dtio_proc (derived,
1749 last_dt == WRITE, true);
1750 if (dtio_sub != NULL)
1751 {
1752 dtio_proc = gfc_get_symbol_decl (dtio_sub);
1753 dtio_proc = gfc_build_addr_expr (NULL, dtio_proc);
1754 gfc_symbol *vtab = gfc_find_derived_vtab (derived);
1755 vtable = vtab->backend_decl;
1756 if (vtable == NULL_TREE)
1757 vtable = gfc_get_symbol_decl (vtab);
1758 vtable = gfc_build_addr_expr (pvoid_type_node, vtable);
1759 }
e73d3ca6
PT		 1760 }
1761 }
1762
29dc5138 1763 if (ts->type == BT_CHARACTER)
bc21d315 1764 tmp = ts->u.cl->backend_decl;
29dc5138 1765 else
5039610b 1766 tmp = build_int_cst (gfc_charlen_type_node, 0);
e73d3ca6 1767
7f72e402 1768 if (dtio_proc == null_pointer_node)
e73d3ca6
PT		 1769 tmp = build_call_expr_loc (input_location,
1770 iocall[IOCALL_SET_NML_VAL], 6,
1771 dt_parm_addr, addr_expr, string,
1772 build_int_cst (gfc_int4_type_node, ts->kind),
1773 tmp, dtype);
1774 else
1775 tmp = build_call_expr_loc (input_location,
1776 iocall[IOCALL_SET_NML_DTIO_VAL], 8,
1777 dt_parm_addr, addr_expr, string,
1778 build_int_cst (gfc_int4_type_node, ts->kind),
1779 tmp, dtype, dtio_proc, vtable);
3bc268e6 1780 gfc_add_expr_to_block (block, tmp);
29dc5138
PT		 1781
1782 /* If the object is an array, transfer rank times:
1783 (null pointer, name, stride, lbound, ubound) */
1784
1785 for ( n_dim = 0 ; n_dim < rank ; n_dim++ )
1786 {
db3927fb
AH		 1787 tmp = build_call_expr_loc (input_location,
1788 iocall[IOCALL_SET_NML_VAL_DIM], 5,
5039610b 1789 dt_parm_addr,
0522a84e 1790 build_int_cst (gfc_int4_type_node, n_dim),
19d36107
TB		 1791 gfc_conv_array_stride (decl, n_dim),
1792 gfc_conv_array_lbound (decl, n_dim),
1793 gfc_conv_array_ubound (decl, n_dim));
29dc5138
PT		 1794 gfc_add_expr_to_block (block, tmp);
1795 }
1796
e73d3ca6
PT		 1797 if (gfc_bt_struct (ts->type) && ts->u.derived->components
1798 && dtio_proc == null_pointer_node)
29dc5138
PT		 1799 {
1800 gfc_component *cmp;
1801
1802 /* Provide the RECORD_TYPE to build component references. */
1803
db3927fb
AH		 1804 tree expr = build_fold_indirect_ref_loc (input_location,
1805 addr_expr);
29dc5138 1806
bc21d315 1807 for (cmp = ts->u.derived->components; cmp; cmp = cmp->next)
29dc5138 1808 {
3b111bd7
JD		 1809 char *full_name = nml_full_name (var_name, cmp->name,
1810 ts->u.derived->attr.extension);
29dc5138
PT		 1811 transfer_namelist_element (block,
1812 full_name,
1813 NULL, cmp, expr);
cede9502 1814 free (full_name);
29dc5138
PT		 1815 }
1816 }
3bc268e6 1817}
6de9cd9a 1818
29dc5138 1819#undef IARG
29dc5138 1820
6de9cd9a
DN		 1821/* Create a data transfer statement. Not all of the fields are valid
1822 for both reading and writing, but improper use has been filtered
1823 out by now. */
1824
1825static tree
5e805e44 1826build_dt (tree function, gfc_code * code)
6de9cd9a 1827{
d4feb3d3 1828 stmtblock_t block, post_block, post_end_block, post_iu_block;
6de9cd9a 1829 gfc_dt *dt;
5e805e44 1830 tree tmp, var;
29dc5138 1831 gfc_expr *nmlname;
3bc268e6 1832 gfc_namelist *nml;
5e1bdeb7 1833 unsigned int mask = 0;
6de9cd9a 1834
5e805e44 1835 gfc_start_block (&block);
6de9cd9a 1836 gfc_init_block (&post_block);
5e805e44 1837 gfc_init_block (&post_end_block);
d4feb3d3 1838 gfc_init_block (&post_iu_block);
5e805e44
JJ		 1839
1840 var = gfc_create_var (st_parameter[IOPARM_ptype_dt].type, "dt_parm");
1841
1842 set_error_locus (&block, var, &code->loc);
6de9cd9a 1843
5e805e44
JJ		 1844 if (last_dt == IOLENGTH)
1845 {
1846 gfc_inquire *inq;
1847
1848 inq = code->ext.inquire;
6de9cd9a 1849
5e805e44
JJ		 1850 /* First check that preconditions are met. */
1851 gcc_assert (inq != NULL);
1852 gcc_assert (inq->iolength != NULL);
1853
1854 /* Connect to the iolength variable. */
1855 mask |= set_parameter_ref (&block, &post_end_block, var,
1856 IOPARM_dt_iolength, inq->iolength);
1857 dt = NULL;
1858 }
1859 else
1860 {
1861 dt = code->ext.dt;
1862 gcc_assert (dt != NULL);
1863 }
8750f9cd 1864
5e805e44 1865 if (dt && dt->io_unit)
6de9cd9a
DN		 1866 {
1867 if (dt->io_unit->ts.type == BT_CHARACTER)
1868 {
d4feb3d3
PT		 1869 mask |= set_internal_unit (&block, &post_iu_block,
1870 var, dt->io_unit);
c8dce2cf 1871 set_parameter_const (&block, var, IOPARM_common_unit,
4a8d4422
JD		 1872 dt->io_unit->ts.kind == 1 ?
1873 GFC_INTERNAL_UNIT : GFC_INTERNAL_UNIT4);
6de9cd9a 1874 }
6de9cd9a 1875 }
5e805e44
JJ		 1876 else
1877 set_parameter_const (&block, var, IOPARM_common_unit, 0);
6de9cd9a 1878
5e805e44
JJ		 1879 if (dt)
1880 {
f96d606f
JD		 1881 if (dt->iomsg)
1882 mask |= set_string (&block, &post_block, var, IOPARM_common_iomsg,
1883 dt->iomsg);
1884
1885 if (dt->iostat)
1886 mask |= set_parameter_ref (&block, &post_end_block, var,
1887 IOPARM_common_iostat, dt->iostat);
1888
1889 if (dt->err)
1890 mask |= IOPARM_common_err;
1891
1892 if (dt->eor)
1893 mask |= IOPARM_common_eor;
1894
1895 if (dt->end)
1896 mask |= IOPARM_common_end;
1897
6f0f0b2e
JD		 1898 if (dt->id)
1899 mask |= set_parameter_ref (&block, &post_end_block, var,
1900 IOPARM_dt_id, dt->id);
1901
1902 if (dt->pos)
e344505c 1903 mask |= set_parameter_value (&block, var, IOPARM_dt_pos, dt->pos);
6f0f0b2e
JD		 1904
1905 if (dt->asynchronous)
e344505c
JD		 1906 mask |= set_string (&block, &post_block, var,
1907 IOPARM_dt_asynchronous, dt->asynchronous);
6f0f0b2e
JD		 1908
1909 if (dt->blank)
1910 mask |= set_string (&block, &post_block, var, IOPARM_dt_blank,
1911 dt->blank);
1912
1913 if (dt->decimal)
1914 mask |= set_string (&block, &post_block, var, IOPARM_dt_decimal,
1915 dt->decimal);
1916
1917 if (dt->delim)
1918 mask |= set_string (&block, &post_block, var, IOPARM_dt_delim,
1919 dt->delim);
1920
1921 if (dt->pad)
1922 mask |= set_string (&block, &post_block, var, IOPARM_dt_pad,
1923 dt->pad);
1924
1925 if (dt->round)
1926 mask |= set_string (&block, &post_block, var, IOPARM_dt_round,
1927 dt->round);
1928
1929 if (dt->sign)
1930 mask |= set_string (&block, &post_block, var, IOPARM_dt_sign,
1931 dt->sign);
1932
5e805e44 1933 if (dt->rec)
e344505c 1934 mask |= set_parameter_value (&block, var, IOPARM_dt_rec, dt->rec);
6de9cd9a 1935
5e805e44
JJ		 1936 if (dt->advance)
1937 mask |= set_string (&block, &post_block, var, IOPARM_dt_advance,
1938 dt->advance);
6de9cd9a 1939
5e805e44 1940 if (dt->format_expr)
9341698a 1941 mask |= set_string (&block, &post_end_block, var, IOPARM_dt_format,
5e805e44 1942 dt->format_expr);
6de9cd9a 1943
5e805e44
JJ		 1944 if (dt->format_label)
1945 {
1946 if (dt->format_label == &format_asterisk)
1947 mask |= IOPARM_dt_list_format;
1948 else
1949 mask |= set_string (&block, &post_block, var, IOPARM_dt_format,
1950 dt->format_label->format);
1951 }
6de9cd9a 1952
5e805e44
JJ		 1953 if (dt->size)
1954 mask |= set_parameter_ref (&block, &post_end_block, var,
1955 IOPARM_dt_size, dt->size);
6de9cd9a 1956
4a8d4422
JD		 1957 if (dt->udtio)
1958 mask |= IOPARM_dt_dtio;
1959
7ee4f6f3
JJ		 1960 if (dt->dec_ext)
1961 mask |= IOPARM_dt_dec_ext;
6869e9c6 1962
5e805e44
JJ		 1963 if (dt->namelist)
1964 {
1965 if (dt->format_expr || dt->format_label)
1966 gfc_internal_error ("build_dt: format with namelist");
1967
b7e75771
JD		 1968 nmlname = gfc_get_character_expr (gfc_default_character_kind, NULL,
1969 dt->namelist->name,
1970 strlen (dt->namelist->name));
29dc5138 1971
5e805e44
JJ		 1972 mask |= set_string (&block, &post_block, var, IOPARM_dt_namelist_name,
1973 nmlname);
29dc5138 1974
76c1a7ec
TB		 1975 gfc_free_expr (nmlname);
1976
5e805e44
JJ		 1977 if (last_dt == READ)
1978 mask |= IOPARM_dt_namelist_read_mode;
29dc5138 1979
5e805e44 1980 set_parameter_const (&block, var, IOPARM_common_flags, mask);
29dc5138 1981
5e805e44
JJ		 1982 dt_parm = var;
1983
1984 for (nml = dt->namelist->namelist; nml; nml = nml->next)
1985 transfer_namelist_element (&block, nml->sym->name, nml->sym,
71ff73f3 1986 NULL, NULL_TREE);
5e805e44
JJ		 1987 }
1988 else
1989 set_parameter_const (&block, var, IOPARM_common_flags, mask);
f96d606f
JD		 1990
1991 if (dt->io_unit && dt->io_unit->ts.type == BT_INTEGER)
e344505c
JD		 1992 set_parameter_value_chk (&block, dt->iostat, var,
1993 IOPARM_common_unit, dt->io_unit);
6de9cd9a 1994 }
5e805e44
JJ		 1995 else
1996 set_parameter_const (&block, var, IOPARM_common_flags, mask);
6de9cd9a 1997
628c189e 1998 tmp = gfc_build_addr_expr (NULL_TREE, var);
033e7d21 1999 tmp = build_call_expr_loc (UNKNOWN_LOCATION,
db3927fb 2000 function, 1, tmp);
6de9cd9a
DN		 2001 gfc_add_expr_to_block (&block, tmp);
2002
2003 gfc_add_block_to_block (&block, &post_block);
2004
5e805e44
JJ		 2005 dt_parm = var;
2006 dt_post_end_block = &post_end_block;
2007
bc51e726
JD		 2008 /* Set implied do loop exit condition. */
2009 if (last_dt == READ || last_dt == WRITE)
2010 {
2011 gfc_st_parameter_field *p = &st_parameter_field[IOPARM_common_flags];
2012
65a9ca82
TB		 2013 tmp = fold_build3_loc (input_location, COMPONENT_REF,
2014 st_parameter[IOPARM_ptype_common].type,
2015 dt_parm, TYPE_FIELDS (TREE_TYPE (dt_parm)),
2016 NULL_TREE);
2017 tmp = fold_build3_loc (input_location, COMPONENT_REF,
2018 TREE_TYPE (p->field), tmp, p->field, NULL_TREE);
2019 tmp = fold_build2_loc (input_location, BIT_AND_EXPR, TREE_TYPE (tmp),
2020 tmp, build_int_cst (TREE_TYPE (tmp),
2021 IOPARM_common_libreturn_mask));
bc51e726
JD		 2022 }
2023 else /* IOLENGTH */
2024 tmp = NULL_TREE;
2025
2026 gfc_add_expr_to_block (&block, gfc_trans_code_cond (code->block->next, tmp));
5e805e44 2027
d4feb3d3
PT		 2028 gfc_add_block_to_block (&block, &post_iu_block);
2029
5e805e44
JJ		 2030 dt_parm = NULL;
2031 dt_post_end_block = NULL;
2032
6de9cd9a
DN		 2033 return gfc_finish_block (&block);
2034}
2035
2036
8750f9cd
JB		 2037/* Translate the IOLENGTH form of an INQUIRE statement. We treat
2038 this as a third sort of data transfer statement, except that
e7dc5b4f 2039 lengths are summed instead of actually transferring any data. */
8750f9cd
JB		 2040
2041tree
2042gfc_trans_iolength (gfc_code * code)
2043{
8750f9cd 2044 last_dt = IOLENGTH;
5e805e44 2045 return build_dt (iocall[IOCALL_IOLENGTH], code);
8750f9cd
JB		 2046}
2047
2048
6de9cd9a
DN		 2049/* Translate a READ statement. */
2050
2051tree
2052gfc_trans_read (gfc_code * code)
2053{
6de9cd9a 2054 last_dt = READ;
5e805e44 2055 return build_dt (iocall[IOCALL_READ], code);
6de9cd9a
DN		 2056}
2057
2058
2059/* Translate a WRITE statement */
2060
2061tree
2062gfc_trans_write (gfc_code * code)
2063{
6de9cd9a 2064 last_dt = WRITE;
5e805e44 2065 return build_dt (iocall[IOCALL_WRITE], code);
6de9cd9a
DN		 2066}
2067
2068
2069/* Finish a data transfer statement. */
2070
2071tree
2072gfc_trans_dt_end (gfc_code * code)
2073{
2074 tree function, tmp;
2075 stmtblock_t block;
2076
2077 gfc_init_block (&block);
2078
8750f9cd
JB		 2079 switch (last_dt)
2080 {
2081 case READ:
5e805e44 2082 function = iocall[IOCALL_READ_DONE];
8750f9cd
JB		 2083 break;
2084
2085 case WRITE:
5e805e44 2086 function = iocall[IOCALL_WRITE_DONE];
8750f9cd
JB		 2087 break;
2088
2089 case IOLENGTH:
5e805e44 2090 function = iocall[IOCALL_IOLENGTH_DONE];
8750f9cd
JB		 2091 break;
2092
2093 default:
6e45f57b 2094 gcc_unreachable ();
8750f9cd 2095 }
6de9cd9a 2096
628c189e 2097 tmp = gfc_build_addr_expr (NULL_TREE, dt_parm);
db3927fb
AH		 2098 tmp = build_call_expr_loc (input_location,
2099 function, 1, tmp);
6de9cd9a 2100 gfc_add_expr_to_block (&block, tmp);
5e805e44
JJ		 2101 gfc_add_block_to_block (&block, dt_post_end_block);
2102 gfc_init_block (dt_post_end_block);
6de9cd9a 2103
8750f9cd
JB		 2104 if (last_dt != IOLENGTH)
2105 {
6e45f57b 2106 gcc_assert (code->ext.dt != NULL);
5e805e44 2107 io_result (&block, dt_parm, code->ext.dt->err,
8750f9cd
JB		 2108 code->ext.dt->end, code->ext.dt->eor);
2109 }
6de9cd9a
DN		 2110
2111 return gfc_finish_block (&block);
2112}
2113
d2ccf6aa 2114static void
e73d3ca6
PT		 2115transfer_expr (gfc_se * se, gfc_typespec * ts, tree addr_expr,
2116 gfc_code * code, tree vptr);
d2ccf6aa
VL		 2117
2118/* Given an array field in a derived type variable, generate the code
2119 for the loop that iterates over array elements, and the code that
2120 accesses those array elements. Use transfer_expr to generate code
2121 for transferring that element. Because elements may also be
2122 derived types, transfer_expr and transfer_array_component are mutually
2123 recursive. */
2124
2125static tree
bdfd2ff0 2126transfer_array_component (tree expr, gfc_component * cm, locus * where)
d2ccf6aa
VL		 2127{
2128 tree tmp;
2129 stmtblock_t body;
2130 stmtblock_t block;
2131 gfc_loopinfo loop;
2132 int n;
2133 gfc_ss *ss;
2134 gfc_se se;
08dcec61 2135 gfc_array_info *ss_array;
d2ccf6aa
VL		 2136
2137 gfc_start_block (&block);
2138 gfc_init_se (&se, NULL);
2139
2140 /* Create and initialize Scalarization Status. Unlike in
2141 gfc_trans_transfer, we can't simply use gfc_walk_expr to take
2142 care of this task, because we don't have a gfc_expr at hand.
2143 Build one manually, as in gfc_trans_subarray_assign. */
2144
66877276
MM		 2145 ss = gfc_get_array_ss (gfc_ss_terminator, NULL, cm->as->rank,
2146 GFC_SS_COMPONENT);
1838afec 2147 ss_array = &ss->info->data.array;
276515e6
PT		 2148
2149 if (cm->attr.pdt_array)
2150 ss_array->shape = NULL;
2151 else
2152 ss_array->shape = gfc_get_shape (cm->as->rank);
2153
08dcec61
MM		 2154 ss_array->descriptor = expr;
2155 ss_array->data = gfc_conv_array_data (expr);
2156 ss_array->offset = gfc_conv_array_offset (expr);
d2ccf6aa
VL		 2157 for (n = 0; n < cm->as->rank; n++)
2158 {
08dcec61
MM		 2159 ss_array->start[n] = gfc_conv_array_lbound (expr, n);
2160 ss_array->stride[n] = gfc_index_one_node;
d2ccf6aa 2161
276515e6
PT		 2162 if (cm->attr.pdt_array)
2163 ss_array->end[n] = gfc_conv_array_ubound (expr, n);
2164 else
2165 {
2166 mpz_init (ss_array->shape[n]);
2167 mpz_sub (ss_array->shape[n], cm->as->upper[n]->value.integer,
2168 cm->as->lower[n]->value.integer);
2169 mpz_add_ui (ss_array->shape[n], ss_array->shape[n], 1);
2170 }
d2ccf6aa
VL		 2171 }
2172
f7b529fa 2173 /* Once we got ss, we use scalarizer to create the loop. */
d2ccf6aa
VL		 2174
2175 gfc_init_loopinfo (&loop);
2176 gfc_add_ss_to_loop (&loop, ss);
2177 gfc_conv_ss_startstride (&loop);
bdfd2ff0 2178 gfc_conv_loop_setup (&loop, where);
d2ccf6aa
VL		 2179 gfc_mark_ss_chain_used (ss, 1);
2180 gfc_start_scalarized_body (&loop, &body);
2181
2182 gfc_copy_loopinfo_to_se (&se, &loop);
2183 se.ss = ss;
2184
2185 /* gfc_conv_tmp_array_ref assumes that se.expr contains the array. */
2186 se.expr = expr;
2187 gfc_conv_tmp_array_ref (&se);
2188
2189 /* Now se.expr contains an element of the array. Take the address and pass
2190 it to the IO routines. */
628c189e 2191 tmp = gfc_build_addr_expr (NULL_TREE, se.expr);
e73d3ca6 2192 transfer_expr (&se, &cm->ts, tmp, NULL, NULL_TREE);
d2ccf6aa
VL		 2193
2194 /* We are done now with the loop body. Wrap up the scalarizer and
f7b529fa 2195 return. */
d2ccf6aa
VL		 2196
2197 gfc_add_block_to_block (&body, &se.pre);
2198 gfc_add_block_to_block (&body, &se.post);
2199
2200 gfc_trans_scalarizing_loops (&loop, &body);
2201
2202 gfc_add_block_to_block (&block, &loop.pre);
2203 gfc_add_block_to_block (&block, &loop.post);
2204
276515e6
PT		 2205 if (!cm->attr.pdt_array)
2206 {
2207 gcc_assert (ss_array->shape != NULL);
2208 gfc_free_shape (&ss_array->shape, cm->as->rank);
2209 }
96654664
PB		 2210 gfc_cleanup_loop (&loop);
2211
d2ccf6aa
VL		 2212 return gfc_finish_block (&block);
2213}
6de9cd9a 2214
e73d3ca6
PT		 2215
2216/* Helper function for transfer_expr that looks for the DTIO procedure
2217 either as a typebound binding or in a generic interface. If present,
2218 the address expression of the procedure is returned. It is assumed
2219 that the procedure interface has been checked during resolution. */
2220
2221static tree
2222get_dtio_proc (gfc_typespec * ts, gfc_code * code, gfc_symbol **dtio_sub)
2223{
2224 gfc_symbol *derived;
2225 bool formatted = false;
2226 gfc_dt *dt = code->ext.dt;
2227
f208c5cc
JD		 2228 /* Determine when to use the formatted DTIO procedure. */
2229 if (dt && (dt->format_expr || dt->format_label))
2230 formatted = true;
e73d3ca6 2231
707024b2
JW		 2232 if (ts->type == BT_CLASS)
2233 derived = ts->u.derived->components->ts.u.derived;
2234 else
2235 derived = ts->u.derived;
2236
2237 gfc_symtree *tb_io_st = gfc_find_typebound_dtio_proc (derived,
2238 last_dt == WRITE, formatted);
2239 if (ts->type == BT_CLASS && tb_io_st)
e4e659b9 2240 {
707024b2
JW		 2241 // polymorphic DTIO call (based on the dynamic type)
2242 gfc_se se;
2243 gfc_expr *expr = gfc_find_and_cut_at_last_class_ref (code->expr1);
2244 gfc_add_vptr_component (expr);
2245 gfc_add_component_ref (expr,
2246 tb_io_st->n.tb->u.generic->specific_st->name);
2247 *dtio_sub = tb_io_st->n.tb->u.generic->specific->u.specific->n.sym;
2248 gfc_init_se (&se, NULL);
2249 se.want_pointer = 1;
2250 gfc_conv_expr (&se, expr);
2251 gfc_free_expr (expr);
2252 return se.expr;
2253 }
2254 else
2255 {
2256 // non-polymorphic DTIO call (based on the declared type)
e4e659b9
JW		 2257 *dtio_sub = gfc_find_specific_dtio_proc (derived, last_dt == WRITE,
2258 formatted);
2259
2260 if (*dtio_sub)
2261 return gfc_build_addr_expr (NULL, gfc_get_symbol_decl (*dtio_sub));
2262 }
e73d3ca6
PT		 2263
2264 return NULL_TREE;
e73d3ca6
PT		 2265}
2266
6de9cd9a
DN		 2267/* Generate the call for a scalar transfer node. */
2268
2269static void
e73d3ca6
PT		 2270transfer_expr (gfc_se * se, gfc_typespec * ts, tree addr_expr,
2271 gfc_code * code, tree vptr)
6de9cd9a 2272{
8a221914 2273 tree tmp, function, arg2, arg3, field, expr;
6de9cd9a
DN		 2274 gfc_component *c;
2275 int kind;
2276
a8b3b0b6
CR		 2277 /* It is possible to get a C_NULL_PTR or C_NULL_FUNPTR expression here if
2278 the user says something like: print *, 'c_null_ptr: ', c_null_ptr
2279 We need to translate the expression to a constant if it's either
aa5e22f0
CR		 2280 C_NULL_PTR or C_NULL_FUNPTR. We could also get a user variable of
2281 type C_PTR or C_FUNPTR, in which case the ts->type may no longer be
2282 BT_DERIVED (could have been changed by gfc_conv_expr). */
bc21d315
JW		 2283 if ((ts->type == BT_DERIVED || ts->type == BT_INTEGER)
2284 && ts->u.derived != NULL
2285 && (ts->is_iso_c == 1 || ts->u.derived->ts.is_iso_c == 1))
a8b3b0b6 2286 {
cadddfdd 2287 ts->type = BT_INTEGER;
a26f63a8
SK		 2288 ts->kind = gfc_index_integer_kind;
2289 }
2290
2291 /* gfortran reaches here for "print *, c_loc(xxx)". */
2292 if (ts->type == BT_VOID
2293 && code->expr1 && code->expr1->ts.type == BT_VOID
2294 && code->expr1->symtree
2295 && strcmp (code->expr1->symtree->name, "c_loc") == 0)
2296 {
2297 ts->type = BT_INTEGER;
cadddfdd 2298 ts->kind = gfc_index_integer_kind;
a8b3b0b6 2299 }
8019105d 2300
6de9cd9a
DN		 2301 kind = ts->kind;
2302 function = NULL;
2303 arg2 = NULL;
8a221914 2304 arg3 = NULL;
6de9cd9a
DN		 2305
2306 switch (ts->type)
2307 {
2308 case BT_INTEGER:
df09d1d5 2309 arg2 = build_int_cst (integer_type_node, kind);
6eb6875d
TK		 2310 if (last_dt == READ)
2311 function = iocall[IOCALL_X_INTEGER];
2312 else
2313 function = iocall[IOCALL_X_INTEGER_WRITE];
2314
6de9cd9a
DN		 2315 break;
2316
2317 case BT_REAL:
df09d1d5 2318 arg2 = build_int_cst (integer_type_node, kind);
6eb6875d 2319 if (last_dt == READ)
1ec601bf
FXC		 2320 {
2321 if (gfc_real16_is_float128 && ts->kind == 16)
2322 function = iocall[IOCALL_X_REAL128];
2323 else
2324 function = iocall[IOCALL_X_REAL];
2325 }
6eb6875d 2326 else
1ec601bf
FXC		 2327 {
2328 if (gfc_real16_is_float128 && ts->kind == 16)
2329 function = iocall[IOCALL_X_REAL128_WRITE];
2330 else
2331 function = iocall[IOCALL_X_REAL_WRITE];
2332 }
6eb6875d 2333
6de9cd9a
DN		 2334 break;
2335
2336 case BT_COMPLEX:
df09d1d5 2337 arg2 = build_int_cst (integer_type_node, kind);
6eb6875d 2338 if (last_dt == READ)
1ec601bf
FXC		 2339 {
2340 if (gfc_real16_is_float128 && ts->kind == 16)
2341 function = iocall[IOCALL_X_COMPLEX128];
2342 else
2343 function = iocall[IOCALL_X_COMPLEX];
2344 }
6eb6875d 2345 else
1ec601bf
FXC		 2346 {
2347 if (gfc_real16_is_float128 && ts->kind == 16)
2348 function = iocall[IOCALL_X_COMPLEX128_WRITE];
2349 else
2350 function = iocall[IOCALL_X_COMPLEX_WRITE];
2351 }
6eb6875d 2352
6de9cd9a
DN		 2353 break;
2354
2355 case BT_LOGICAL:
df09d1d5 2356 arg2 = build_int_cst (integer_type_node, kind);
6eb6875d
TK		 2357 if (last_dt == READ)
2358 function = iocall[IOCALL_X_LOGICAL];
2359 else
2360 function = iocall[IOCALL_X_LOGICAL_WRITE];
2361
6de9cd9a
DN		 2362 break;
2363
2364 case BT_CHARACTER:
8a221914
JD		 2365 if (kind == 4)
2366 {
2367 if (se->string_length)
2368 arg2 = se->string_length;
2369 else
2370 {
db3927fb
AH		 2371 tmp = build_fold_indirect_ref_loc (input_location,
2372 addr_expr);
8a221914
JD		 2373 gcc_assert (TREE_CODE (TREE_TYPE (tmp)) == ARRAY_TYPE);
2374 arg2 = TYPE_MAX_VALUE (TYPE_DOMAIN (TREE_TYPE (tmp)));
2375 arg2 = fold_convert (gfc_charlen_type_node, arg2);
2376 }
df09d1d5 2377 arg3 = build_int_cst (integer_type_node, kind);
6eb6875d
TK		 2378 if (last_dt == READ)
2379 function = iocall[IOCALL_X_CHARACTER_WIDE];
2380 else
2381 function = iocall[IOCALL_X_CHARACTER_WIDE_WRITE];
8019105d 2382
628c189e 2383 tmp = gfc_build_addr_expr (NULL_TREE, dt_parm);
db3927fb
AH		 2384 tmp = build_call_expr_loc (input_location,
2385 function, 4, tmp, addr_expr, arg2, arg3);
8a221914
JD		 2386 gfc_add_expr_to_block (&se->pre, tmp);
2387 gfc_add_block_to_block (&se->pre, &se->post);
2388 return;
2389 }
1cc0e193 2390 /* Fall through. */
7b95e2a8 2391 case BT_HOLLERITH:
d2ccf6aa
VL		 2392 if (se->string_length)
2393 arg2 = se->string_length;
2394 else
2395 {
db3927fb
AH		 2396 tmp = build_fold_indirect_ref_loc (input_location,
2397 addr_expr);
d2ccf6aa
VL		 2398 gcc_assert (TREE_CODE (TREE_TYPE (tmp)) == ARRAY_TYPE);
2399 arg2 = TYPE_MAX_VALUE (TYPE_DOMAIN (TREE_TYPE (tmp)));
2400 }
6eb6875d
TK		 2401 if (last_dt == READ)
2402 function = iocall[IOCALL_X_CHARACTER];
2403 else
2404 function = iocall[IOCALL_X_CHARACTER_WRITE];
2405
6de9cd9a
DN		 2406 break;
2407
f6288c24 2408 case_bt_struct:
e73d3ca6 2409 case BT_CLASS:
fc2655fb
TB		 2410 if (ts->u.derived->components == NULL)
2411 return;
9b460e2e 2412 if (gfc_bt_struct (ts->type) || ts->type == BT_CLASS)
e73d3ca6
PT		 2413 {
2414 gfc_symbol *derived;
2415 gfc_symbol *dtio_sub = NULL;
2416 /* Test for a specific DTIO subroutine. */
2417 if (ts->type == BT_DERIVED)
2418 derived = ts->u.derived;
2419 else
2420 derived = ts->u.derived->components->ts.u.derived;
fc2655fb 2421
e73d3ca6
PT		 2422 if (derived->attr.has_dtio_procs)
2423 arg2 = get_dtio_proc (ts, code, &dtio_sub);
6de9cd9a 2424
6c0347f6 2425 if ((dtio_sub != NULL) && (last_dt != IOLENGTH))
e73d3ca6
PT		 2426 {
2427 tree decl;
2428 decl = build_fold_indirect_ref_loc (input_location,
2429 se->expr);
2430 /* Remember that the first dummy of the DTIO subroutines
2431 is CLASS(derived) for extensible derived types, so the
2432 conversion must be done here for derived type and for
2433 scalarized CLASS array element io-list objects. */
2434 if ((ts->type == BT_DERIVED
2435 && !(ts->u.derived->attr.sequence
2436 || ts->u.derived->attr.is_bind_c))
2437 || (ts->type == BT_CLASS
2438 && !GFC_CLASS_TYPE_P (TREE_TYPE (decl))))
2439 gfc_conv_derived_to_class (se, code->expr1,
2440 dtio_sub->formal->sym->ts,
2441 vptr, false, false);
2442 addr_expr = se->expr;
2443 function = iocall[IOCALL_X_DERIVED];
2444 break;
2445 }
9b460e2e 2446 else if (gfc_bt_struct (ts->type))
e73d3ca6
PT		 2447 {
2448 /* Recurse into the elements of the derived type. */
2449 expr = gfc_evaluate_now (addr_expr, &se->pre);
f208c5cc 2450 expr = build_fold_indirect_ref_loc (input_location, expr);
8019105d 2451
e73d3ca6
PT		 2452 /* Make sure that the derived type has been built. An external
2453 function, if only referenced in an io statement, requires this
2454 check (see PR58771). */
2455 if (ts->u.derived->backend_decl == NULL_TREE)
2456 (void) gfc_typenode_for_spec (ts);
2457
2458 for (c = ts->u.derived->components; c; c = c->next)
2459 {
276515e6
PT		 2460 /* Ignore hidden string lengths. */
2461 if (c->name[0] == '_')
2462 continue;
2463
e73d3ca6
PT		 2464 field = c->backend_decl;
2465 gcc_assert (field && TREE_CODE (field) == FIELD_DECL);
2466
2467 tmp = fold_build3_loc (UNKNOWN_LOCATION,
2468 COMPONENT_REF, TREE_TYPE (field),
2469 expr, field, NULL_TREE);
2470
2471 if (c->attr.dimension)
2472 {
2473 tmp = transfer_array_component (tmp, c, & code->loc);
2474 gfc_add_expr_to_block (&se->pre, tmp);
2475 }
2476 else
2477 {
276515e6
PT		 2478 tree strlen = NULL_TREE;
2479
2480 if (!c->attr.pointer && !c->attr.pdt_string)
e73d3ca6 2481 tmp = gfc_build_addr_expr (NULL_TREE, tmp);
276515e6
PT		 2482
2483 /* Use the hidden string length for pdt strings. */
2484 if (c->attr.pdt_string
2485 && gfc_deferred_strlen (c, &strlen)
2486 && strlen != NULL_TREE)
2487 {
2488 strlen = fold_build3_loc (UNKNOWN_LOCATION,
2489 COMPONENT_REF,
2490 TREE_TYPE (strlen),
2491 expr, strlen, NULL_TREE);
2492 se->string_length = strlen;
2493 }
2494
e73d3ca6 2495 transfer_expr (se, &c->ts, tmp, code, NULL_TREE);
276515e6
PT		 2496
2497 /* Reset so that the pdt string length does not propagate
2498 through to other strings. */
2499 if (c->attr.pdt_string && strlen)
2500 se->string_length = NULL_TREE;
e73d3ca6
PT		 2501 }
2502 }
2503 return;
2504 }
2505 /* If a CLASS object gets through to here, fall through and ICE. */
6de9cd9a 2506 }
81fea426 2507 gcc_fallthrough ();
6de9cd9a 2508 default:
17d5d49f 2509 gfc_internal_error ("Bad IO basetype (%d)", ts->type);
6de9cd9a
DN		 2510 }
2511
628c189e 2512 tmp = gfc_build_addr_expr (NULL_TREE, dt_parm);
db3927fb
AH		 2513 tmp = build_call_expr_loc (input_location,
2514 function, 3, tmp, addr_expr, arg2);
6de9cd9a
DN		 2515 gfc_add_expr_to_block (&se->pre, tmp);
2516 gfc_add_block_to_block (&se->pre, &se->post);
8750f9cd 2517
6de9cd9a
DN		 2518}
2519
2520
18623fae
JB		 2521/* Generate a call to pass an array descriptor to the IO library. The
2522 array should be of one of the intrinsic types. */
2523
2524static void
2525transfer_array_desc (gfc_se * se, gfc_typespec * ts, tree addr_expr)
2526{
6eb6875d 2527 tree tmp, charlen_arg, kind_arg, io_call;
18623fae
JB		 2528
2529 if (ts->type == BT_CHARACTER)
2530 charlen_arg = se->string_length;
2531 else
df09d1d5 2532 charlen_arg = build_int_cst (gfc_charlen_type_node, 0);
18623fae 2533
df09d1d5 2534 kind_arg = build_int_cst (integer_type_node, ts->kind);
e5ef4b3b 2535
628c189e 2536 tmp = gfc_build_addr_expr (NULL_TREE, dt_parm);
6eb6875d
TK		 2537 if (last_dt == READ)
2538 io_call = iocall[IOCALL_X_ARRAY];
2539 else
2540 io_call = iocall[IOCALL_X_ARRAY_WRITE];
2541
033e7d21 2542 tmp = build_call_expr_loc (UNKNOWN_LOCATION,
6eb6875d 2543 io_call, 4,
5039610b 2544 tmp, addr_expr, kind_arg, charlen_arg);
18623fae
JB		 2545 gfc_add_expr_to_block (&se->pre, tmp);
2546 gfc_add_block_to_block (&se->pre, &se->post);
2547}
2548
2549
6de9cd9a
DN		 2550/* gfc_trans_transfer()-- Translate a TRANSFER code node */
2551
2552tree
2553gfc_trans_transfer (gfc_code * code)
2554{
2555 stmtblock_t block, body;
2556 gfc_loopinfo loop;
2557 gfc_expr *expr;
99c7ab42 2558 gfc_ref *ref;
6de9cd9a
DN		 2559 gfc_ss *ss;
2560 gfc_se se;
2561 tree tmp;
e73d3ca6 2562 tree vptr;
c63173dd 2563 int n;
6de9cd9a
DN		 2564
2565 gfc_start_block (&block);
18623fae 2566 gfc_init_block (&body);
6de9cd9a 2567
a513927a 2568 expr = code->expr1;
99c7ab42 2569 ref = NULL;
6de9cd9a
DN		 2570 gfc_init_se (&se, NULL);
2571
2960a368 2572 if (expr->rank == 0)
18623fae 2573 {
815d8045 2574 /* Transfer a scalar value. */
e73d3ca6
PT		 2575 if (expr->ts.type == BT_CLASS)
2576 {
2577 se.want_pointer = 1;
2578 gfc_conv_expr (&se, expr);
2579 vptr = gfc_get_vptr_from_expr (se.expr);
2580 }
2581 else
2582 {
2583 vptr = NULL_TREE;
2584 gfc_conv_expr_reference (&se, expr);
2585 }
2586 transfer_expr (&se, &expr->ts, se.expr, code, vptr);
18623fae 2587 }
815d8045 2588 else
6de9cd9a 2589 {
99c7ab42
PT		 2590 /* Transfer an array. If it is an array of an intrinsic
2591 type, pass the descriptor to the library. Otherwise
2592 scalarize the transfer. */
2a573572 2593 if (expr->ref && !gfc_is_proc_ptr_comp (expr))
99c7ab42
PT		 2594 {
2595 for (ref = expr->ref; ref && ref->type != REF_ARRAY;
fc2655fb
TB		 2596 ref = ref->next);
2597 gcc_assert (ref && ref->type == REF_ARRAY);
99c7ab42
PT		 2598 }
2599
ff3598bc
PT		 2600 if (expr->ts.type != BT_CLASS
2601 && expr->expr_type == EXPR_VARIABLE
2602 && gfc_expr_attr (expr).pointer)
2603 goto scalarize;
2604
2605
e73d3ca6
PT		 2606 if (!(gfc_bt_struct (expr->ts.type)
2607 || expr->ts.type == BT_CLASS)
1d6b7f39
PT		 2608 && ref && ref->next == NULL
2609 && !is_subref_array (expr))
815d8045 2610 {
c63173dd
PT		 2611 bool seen_vector = false;
2612
2613 if (ref && ref->u.ar.type == AR_SECTION)
2614 {
2615 for (n = 0; n < ref->u.ar.dimen; n++)
2616 if (ref->u.ar.dimen_type[n] == DIMEN_VECTOR)
502af491
PCC		 2617 {
2618 seen_vector = true;
2619 break;
2620 }
c63173dd
PT		 2621 }
2622
2623 if (seen_vector && last_dt == READ)
2624 {
2625 /* Create a temp, read to that and copy it back. */
430f2d1f 2626 gfc_conv_subref_array_arg (&se, expr, 0, INTENT_OUT, false);
c63173dd
PT		 2627 tmp = se.expr;
2628 }
2629 else
2630 {
2631 /* Get the descriptor. */
2960a368 2632 gfc_conv_expr_descriptor (&se, expr);
628c189e 2633 tmp = gfc_build_addr_expr (NULL_TREE, se.expr);
c63173dd
PT		 2634 }
2635
99c7ab42
PT		 2636 transfer_array_desc (&se, &expr->ts, tmp);
2637 goto finish_block_label;
815d8045 2638 }
2960a368 2639
ff3598bc 2640scalarize:
6de9cd9a 2641 /* Initialize the scalarizer. */
2960a368 2642 ss = gfc_walk_expr (expr);
6de9cd9a
DN		 2643 gfc_init_loopinfo (&loop);
2644 gfc_add_ss_to_loop (&loop, ss);
2645
2646 /* Initialize the loop. */
2647 gfc_conv_ss_startstride (&loop);
a513927a 2648 gfc_conv_loop_setup (&loop, &code->expr1->where);
6de9cd9a
DN		 2649
2650 /* The main loop body. */
2651 gfc_mark_ss_chain_used (ss, 1);
2652 gfc_start_scalarized_body (&loop, &body);
2653
2654 gfc_copy_loopinfo_to_se (&se, &loop);
2655 se.ss = ss;
ff3598bc 2656
18623fae 2657 gfc_conv_expr_reference (&se, expr);
ff3598bc 2658
e73d3ca6
PT		 2659 if (expr->ts.type == BT_CLASS)
2660 vptr = gfc_get_vptr_from_expr (ss->info->data.array.descriptor);
2661 else
2662 vptr = NULL_TREE;
2663 transfer_expr (&se, &expr->ts, se.expr, code, vptr);
18623fae 2664 }
815d8045
JB		 2665
2666 finish_block_label:
6de9cd9a
DN		 2667
2668 gfc_add_block_to_block (&body, &se.pre);
2669 gfc_add_block_to_block (&body, &se.post);
2670
2671 if (se.ss == NULL)
2672 tmp = gfc_finish_block (&body);
2673 else
2674 {
770caa74 2675 gcc_assert (expr->rank != 0);
6e45f57b 2676 gcc_assert (se.ss == gfc_ss_terminator);
6de9cd9a
DN		 2677 gfc_trans_scalarizing_loops (&loop, &body);
2678
2679 gfc_add_block_to_block (&loop.pre, &loop.post);
2680 tmp = gfc_finish_block (&loop.pre);
2681 gfc_cleanup_loop (&loop);
2682 }
2683
2684 gfc_add_expr_to_block (&block, tmp);
2685
d2ccf6aa 2686 return gfc_finish_block (&block);
6de9cd9a
DN		 2687}
2688
2689#include "gt-fortran-trans-io.h"
Mirror of https://gcc.gnu.org/git/gcc.git