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6de9cd9a 1/* IO Code translation/library interface
85ec4feb 2 Copyright (C) 2002-2018 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",
c1e9bbcc 348 void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_int4_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",
c1e9bbcc 352 void_type_node, 3, dt_parm_type, pvoid_type_node, gfc_int4_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
3f34855a 441 /* TODO: Change when asynchronous I/O is implemented. */
6f0f0b2e 442 parm_type = build_pointer_type (st_parameter[IOPARM_ptype_wait].type);
3f34855a
TB		 443 iocall[IOCALL_WAIT] = gfc_build_library_function_decl_with_spec (
444 get_identifier (PREFIX("st_wait")), ".X",
a19d2b95 445 void_type_node, 1, parm_type);
6f0f0b2e 446
5e805e44 447 parm_type = build_pointer_type (st_parameter[IOPARM_ptype_filepos].type);
3f34855a
TB		 448 iocall[IOCALL_REWIND] = gfc_build_library_function_decl_with_spec (
449 get_identifier (PREFIX("st_rewind")), ".w",
a19d2b95 450 void_type_node, 1, parm_type);
6de9cd9a 451
3f34855a
TB		 452 iocall[IOCALL_BACKSPACE] = gfc_build_library_function_decl_with_spec (
453 get_identifier (PREFIX("st_backspace")), ".w",
a19d2b95 454 void_type_node, 1, parm_type);
6de9cd9a 455
3f34855a
TB		 456 iocall[IOCALL_ENDFILE] = gfc_build_library_function_decl_with_spec (
457 get_identifier (PREFIX("st_endfile")), ".w",
a19d2b95 458 void_type_node, 1, parm_type);
6403ec5f 459
3f34855a
TB		 460 iocall[IOCALL_FLUSH] = gfc_build_library_function_decl_with_spec (
461 get_identifier (PREFIX("st_flush")), ".w",
a19d2b95 462 void_type_node, 1, parm_type);
6403ec5f 463
6de9cd9a
DN		 464 /* Library helpers */
465
3f34855a
TB		 466 iocall[IOCALL_READ_DONE] = gfc_build_library_function_decl_with_spec (
467 get_identifier (PREFIX("st_read_done")), ".w",
a19d2b95 468 void_type_node, 1, dt_parm_type);
8750f9cd 469
3f34855a
TB		 470 iocall[IOCALL_WRITE_DONE] = gfc_build_library_function_decl_with_spec (
471 get_identifier (PREFIX("st_write_done")), ".w",
a19d2b95 472 void_type_node, 1, dt_parm_type);
8750f9cd 473
3f34855a
TB		 474 iocall[IOCALL_IOLENGTH_DONE] = gfc_build_library_function_decl_with_spec (
475 get_identifier (PREFIX("st_iolength_done")), ".w",
a19d2b95 476 void_type_node, 1, dt_parm_type);
6de9cd9a 477
3f34855a
TB		 478 iocall[IOCALL_SET_NML_VAL] = gfc_build_library_function_decl_with_spec (
479 get_identifier (PREFIX("st_set_nml_var")), ".w.R",
480 void_type_node, 6, dt_parm_type, pvoid_type_node, pvoid_type_node,
0522a84e 481 gfc_int4_type_node, gfc_charlen_type_node, gfc_int4_type_node);
6de9cd9a 482
e73d3ca6
PT		 483 iocall[IOCALL_SET_NML_DTIO_VAL] = gfc_build_library_function_decl_with_spec (
484 get_identifier (PREFIX("st_set_nml_dtio_var")), ".w.R",
485 void_type_node, 8, dt_parm_type, pvoid_type_node, pvoid_type_node,
486 gfc_int4_type_node, gfc_charlen_type_node, gfc_int4_type_node,
487 pvoid_type_node, pvoid_type_node);
488
3f34855a
TB		 489 iocall[IOCALL_SET_NML_VAL_DIM] = gfc_build_library_function_decl_with_spec (
490 get_identifier (PREFIX("st_set_nml_var_dim")), ".w",
491 void_type_node, 5, dt_parm_type, gfc_int4_type_node,
492 gfc_array_index_type, gfc_array_index_type, gfc_array_index_type);
6de9cd9a
DN		 493}
494
495
e73d3ca6
PT		 496static void
497set_parameter_tree (stmtblock_t *block, tree var, enum iofield type, tree value)
5e805e44
JJ		 498{
499 tree tmp;
500 gfc_st_parameter_field *p = &st_parameter_field[type];
501
502 if (p->param_type == IOPARM_ptype_common)
65a9ca82
TB		 503 var = fold_build3_loc (input_location, COMPONENT_REF,
504 st_parameter[IOPARM_ptype_common].type,
505 var, TYPE_FIELDS (TREE_TYPE (var)), NULL_TREE);
506 tmp = fold_build3_loc (input_location, COMPONENT_REF, TREE_TYPE (p->field),
507 var, p->field, NULL_TREE);
e73d3ca6
PT		 508 gfc_add_modify (block, tmp, value);
509}
510
511
512/* Generate code to store an integer constant into the
513 st_parameter_XXX structure. */
514
515static unsigned int
516set_parameter_const (stmtblock_t *block, tree var, enum iofield type,
517 unsigned int val)
518{
519 gfc_st_parameter_field *p = &st_parameter_field[type];
520
521 set_parameter_tree (block, var, type,
522 build_int_cst (TREE_TYPE (p->field), val));
5e805e44
JJ		 523 return p->mask;
524}
525
526
49de9e73 527/* Generate code to store a non-string I/O parameter into the
5e805e44 528 st_parameter_XXX structure. This is a pass by value. */
6de9cd9a 529
5e805e44 530static unsigned int
e344505c
JD		 531set_parameter_value (stmtblock_t *block, tree var, enum iofield type,
532 gfc_expr *e)
533{
534 gfc_se se;
535 tree tmp;
536 gfc_st_parameter_field *p = &st_parameter_field[type];
537 tree dest_type = TREE_TYPE (p->field);
538
539 gfc_init_se (&se, NULL);
540 gfc_conv_expr_val (&se, e);
541
542 se.expr = convert (dest_type, se.expr);
543 gfc_add_block_to_block (block, &se.pre);
544
545 if (p->param_type == IOPARM_ptype_common)
546 var = fold_build3_loc (input_location, COMPONENT_REF,
547 st_parameter[IOPARM_ptype_common].type,
548 var, TYPE_FIELDS (TREE_TYPE (var)), NULL_TREE);
549
550 tmp = fold_build3_loc (input_location, COMPONENT_REF, dest_type, var,
551 p->field, NULL_TREE);
552 gfc_add_modify (block, tmp, se.expr);
553 return p->mask;
554}
555
556
557/* Similar to set_parameter_value except generate runtime
558 error checks. */
559
560static unsigned int
561set_parameter_value_chk (stmtblock_t *block, bool has_iostat, tree var,
ed9c79e1 562 enum iofield type, gfc_expr *e)
6de9cd9a
DN		 563{
564 gfc_se se;
565 tree tmp;
5e805e44 566 gfc_st_parameter_field *p = &st_parameter_field[type];
f96d606f 567 tree dest_type = TREE_TYPE (p->field);
6de9cd9a
DN		 568
569 gfc_init_se (&se, NULL);
f96d606f
JD		 570 gfc_conv_expr_val (&se, e);
571
572 /* If we're storing a UNIT number, we need to check it first. */
9ad55c33 573 if (type == IOPARM_common_unit && e->ts.kind > 4)
f96d606f 574 {
9ad55c33 575 tree cond, val;
f96d606f
JD		 576 int i;
577
f96d606f
JD		 578 /* Don't evaluate the UNIT number multiple times. */
579 se.expr = gfc_evaluate_now (se.expr, &se.pre);
580
9ad55c33
JD		 581 /* UNIT numbers should be greater than the min. */
582 i = gfc_validate_kind (BT_INTEGER, 4, false);
583 val = gfc_conv_mpz_to_tree (gfc_integer_kinds[i].pedantic_min_int, 4);
63ee5404 584 cond = fold_build2_loc (input_location, LT_EXPR, logical_type_node,
65a9ca82
TB		 585 se.expr,
586 fold_convert (TREE_TYPE (se.expr), val));
ed9c79e1
JJ		 587 gfc_trans_io_runtime_check (has_iostat, cond, var, LIBERROR_BAD_UNIT,
588 "Unit number in I/O statement too small",
589 &se.pre);
8019105d 590
f96d606f 591 /* UNIT numbers should be less than the max. */
9ad55c33 592 val = gfc_conv_mpz_to_tree (gfc_integer_kinds[i].huge, 4);
63ee5404 593 cond = fold_build2_loc (input_location, GT_EXPR, logical_type_node,
65a9ca82
TB		 594 se.expr,
595 fold_convert (TREE_TYPE (se.expr), val));
ed9c79e1
JJ		 596 gfc_trans_io_runtime_check (has_iostat, cond, var, LIBERROR_BAD_UNIT,
597 "Unit number in I/O statement too large",
598 &se.pre);
f96d606f
JD		 599 }
600
601 se.expr = convert (dest_type, se.expr);
6de9cd9a
DN		 602 gfc_add_block_to_block (block, &se.pre);
603
5e805e44 604 if (p->param_type == IOPARM_ptype_common)
65a9ca82
TB		 605 var = fold_build3_loc (input_location, COMPONENT_REF,
606 st_parameter[IOPARM_ptype_common].type,
607 var, TYPE_FIELDS (TREE_TYPE (var)), NULL_TREE);
f96d606f 608
65a9ca82
TB		 609 tmp = fold_build3_loc (input_location, COMPONENT_REF, dest_type, var,
610 p->field, NULL_TREE);
726a989a 611 gfc_add_modify (block, tmp, se.expr);
5e805e44 612 return p->mask;
6de9cd9a
DN		 613}
614
615
e344505c
JD		 616/* Build code to check the unit range if KIND=8 is used. Similar to
617 set_parameter_value_chk but we do not generate error calls for
618 inquire statements. */
619
620static unsigned int
621set_parameter_value_inquire (stmtblock_t *block, tree var,
622 enum iofield type, gfc_expr *e)
623{
624 gfc_se se;
625 gfc_st_parameter_field *p = &st_parameter_field[type];
626 tree dest_type = TREE_TYPE (p->field);
627
628 gfc_init_se (&se, NULL);
629 gfc_conv_expr_val (&se, e);
630
631 /* If we're inquiring on a UNIT number, we need to check to make
632 sure it exists for larger than kind = 4. */
633 if (type == IOPARM_common_unit && e->ts.kind > 4)
634 {
635 stmtblock_t newblock;
636 tree cond1, cond2, cond3, val, body;
637 int i;
638
639 /* Don't evaluate the UNIT number multiple times. */
640 se.expr = gfc_evaluate_now (se.expr, &se.pre);
641
642 /* UNIT numbers should be greater than zero. */
643 i = gfc_validate_kind (BT_INTEGER, 4, false);
63ee5404 644 cond1 = build2_loc (input_location, LT_EXPR, logical_type_node,
e344505c
JD		 645 se.expr,
646 fold_convert (TREE_TYPE (se.expr),
647 integer_zero_node));
648 /* UNIT numbers should be less than the max. */
649 val = gfc_conv_mpz_to_tree (gfc_integer_kinds[i].huge, 4);
63ee5404 650 cond2 = build2_loc (input_location, GT_EXPR, logical_type_node,
e344505c
JD		 651 se.expr,
652 fold_convert (TREE_TYPE (se.expr), val));
653 cond3 = build2_loc (input_location, TRUTH_OR_EXPR,
63ee5404 654 logical_type_node, cond1, cond2);
e344505c
JD		 655
656 gfc_start_block (&newblock);
657
658 /* The unit number GFC_INVALID_UNIT is reserved. No units can
659 ever have this value. It is used here to signal to the
660 runtime library that the inquire unit number is outside the
661 allowable range and so cannot exist. It is needed when
662 -fdefault-integer-8 is used. */
663 set_parameter_const (&newblock, var, IOPARM_common_unit,
664 GFC_INVALID_UNIT);
665
666 body = gfc_finish_block (&newblock);
667
e73d3ca6 668 cond3 = gfc_unlikely (cond3, PRED_FORTRAN_FAIL_IO);
e344505c
JD		 669 var = build3_v (COND_EXPR, cond3, body, build_empty_stmt (input_location));
670 gfc_add_expr_to_block (&se.pre, var);
671 }
672
673 se.expr = convert (dest_type, se.expr);
674 gfc_add_block_to_block (block, &se.pre);
675
676 return p->mask;
677}
678
679
49de9e73 680/* Generate code to store a non-string I/O parameter into the
5e805e44 681 st_parameter_XXX structure. This is pass by reference. */
6de9cd9a 682
5e805e44
JJ		 683static unsigned int
684set_parameter_ref (stmtblock_t *block, stmtblock_t *postblock,
685 tree var, enum iofield type, gfc_expr *e)
6de9cd9a
DN		 686{
687 gfc_se se;
5e805e44
JJ		 688 tree tmp, addr;
689 gfc_st_parameter_field *p = &st_parameter_field[type];
6de9cd9a 690
5e805e44 691 gcc_assert (e->ts.type == BT_INTEGER || e->ts.type == BT_LOGICAL);
6de9cd9a 692 gfc_init_se (&se, NULL);
5e805e44 693 gfc_conv_expr_lhs (&se, e);
6de9cd9a 694
6de9cd9a
DN		 695 gfc_add_block_to_block (block, &se.pre);
696
5e805e44
JJ		 697 if (TYPE_MODE (TREE_TYPE (se.expr))
698 == TYPE_MODE (TREE_TYPE (TREE_TYPE (p->field))))
f96d606f 699 {
628c189e 700 addr = convert (TREE_TYPE (p->field), gfc_build_addr_expr (NULL_TREE, se.expr));
f96d606f
JD		 701
702 /* If this is for the iostat variable initialize the
d74b97cc 703 user variable to LIBERROR_OK which is zero. */
f96d606f 704 if (type == IOPARM_common_iostat)
726a989a 705 gfc_add_modify (block, se.expr,
d74b97cc 706 build_int_cst (TREE_TYPE (se.expr), LIBERROR_OK));
f96d606f 707 }
5e805e44
JJ		 708 else
709 {
710 /* The type used by the library has different size
f96d606f
JD		 711 from the type of the variable supplied by the user.
712 Need to use a temporary. */
713 tree tmpvar = gfc_create_var (TREE_TYPE (TREE_TYPE (p->field)),
714 st_parameter_field[type].name);
715
716 /* If this is for the iostat variable, initialize the
d74b97cc 717 user variable to LIBERROR_OK which is zero. */
f96d606f 718 if (type == IOPARM_common_iostat)
726a989a 719 gfc_add_modify (block, tmpvar,
d74b97cc 720 build_int_cst (TREE_TYPE (tmpvar), LIBERROR_OK));
f96d606f 721
628c189e 722 addr = gfc_build_addr_expr (NULL_TREE, tmpvar);
f96d606f 723 /* After the I/O operation, we set the variable from the temporary. */
5e805e44 724 tmp = convert (TREE_TYPE (se.expr), tmpvar);
726a989a 725 gfc_add_modify (postblock, se.expr, tmp);
f96d606f 726 }
5e805e44 727
e73d3ca6 728 set_parameter_tree (block, var, type, addr);
5e805e44 729 return p->mask;
6de9cd9a
DN		 730}
731
d3642f89
FW		 732/* Given an array expr, find its address and length to get a string. If the
733 array is full, the string's address is the address of array's first element
7e279142 734 and the length is the size of the whole array. If it is an element, the
d3642f89 735 string's address is the element's address and the length is the rest size of
7e279142 736 the array. */
d3642f89
FW		 737
738static void
739gfc_convert_array_to_string (gfc_se * se, gfc_expr * e)
740{
d3642f89 741 tree size;
d3642f89 742
7e279142 743 if (e->rank == 0)
d3642f89 744 {
7e279142
JJ		 745 tree type, array, tmp;
746 gfc_symbol *sym;
747 int rank;
748
749 /* If it is an element, we need its address and size of the rest. */
750 gcc_assert (e->expr_type == EXPR_VARIABLE);
751 gcc_assert (e->ref->u.ar.type == AR_ELEMENT);
752 sym = e->symtree->n.sym;
753 rank = sym->as->rank - 1;
d3642f89 754 gfc_conv_expr (se, e);
d3642f89 755
7e279142
JJ		 756 array = sym->backend_decl;
757 type = TREE_TYPE (array);
d3642f89 758
7e279142
JJ		 759 if (GFC_ARRAY_TYPE_P (type))
760 size = GFC_TYPE_ARRAY_SIZE (type);
761 else
762 {
763 gcc_assert (GFC_DESCRIPTOR_TYPE_P (type));
764 size = gfc_conv_array_stride (array, rank);
65a9ca82
TB		 765 tmp = fold_build2_loc (input_location, MINUS_EXPR,
766 gfc_array_index_type,
767 gfc_conv_array_ubound (array, rank),
768 gfc_conv_array_lbound (array, rank));
769 tmp = fold_build2_loc (input_location, PLUS_EXPR,
770 gfc_array_index_type, tmp,
771 gfc_index_one_node);
772 size = fold_build2_loc (input_location, MULT_EXPR,
773 gfc_array_index_type, tmp, size);
7e279142
JJ		 774 }
775 gcc_assert (size);
d3642f89 776
65a9ca82
TB		 777 size = fold_build2_loc (input_location, MINUS_EXPR,
778 gfc_array_index_type, size,
779 TREE_OPERAND (se->expr, 1));
628c189e 780 se->expr = gfc_build_addr_expr (NULL_TREE, se->expr);
7e279142 781 tmp = TYPE_SIZE_UNIT (gfc_get_element_type (type));
65a9ca82
TB		 782 size = fold_build2_loc (input_location, MULT_EXPR,
783 gfc_array_index_type, size,
784 fold_convert (gfc_array_index_type, tmp));
7e279142
JJ		 785 se->string_length = fold_convert (gfc_charlen_type_node, size);
786 return;
d3642f89
FW		 787 }
788
2960a368 789 gfc_conv_array_parameter (se, e, true, NULL, NULL, &size);
d3642f89
FW		 790 se->string_length = fold_convert (gfc_charlen_type_node, size);
791}
6de9cd9a 792
109b0ac2 793
6de9cd9a 794/* Generate code to store a string and its length into the
5e805e44 795 st_parameter_XXX structure. */
6de9cd9a 796
5e805e44 797static unsigned int
6de9cd9a 798set_string (stmtblock_t * block, stmtblock_t * postblock, tree var,
5e805e44 799 enum iofield type, gfc_expr * e)
6de9cd9a
DN		 800{
801 gfc_se se;
802 tree tmp;
6de9cd9a
DN		 803 tree io;
804 tree len;
5e805e44 805 gfc_st_parameter_field *p = &st_parameter_field[type];
6de9cd9a
DN		 806
807 gfc_init_se (&se, NULL);
6de9cd9a 808
5e805e44 809 if (p->param_type == IOPARM_ptype_common)
65a9ca82
TB		 810 var = fold_build3_loc (input_location, COMPONENT_REF,
811 st_parameter[IOPARM_ptype_common].type,
812 var, TYPE_FIELDS (TREE_TYPE (var)), NULL_TREE);
813 io = fold_build3_loc (input_location, COMPONENT_REF, TREE_TYPE (p->field),
44855d8c 814 var, p->field, NULL_TREE);
65a9ca82
TB		 815 len = fold_build3_loc (input_location, COMPONENT_REF,
816 TREE_TYPE (p->field_len),
817 var, p->field_len, NULL_TREE);
6de9cd9a 818
7ab92584 819 /* Integer variable assigned a format label. */
7e279142
JJ		 820 if (e->ts.type == BT_INTEGER
821 && e->rank == 0
822 && e->symtree->n.sym->attr.assign == 1)
6de9cd9a 823 {
dd18a33b 824 char * msg;
c8fe94c7 825 tree cond;
dd18a33b 826
ce2df7c6 827 gfc_conv_label_variable (&se, e);
6de9cd9a 828 tmp = GFC_DECL_STRING_LEN (se.expr);
63ee5404 829 cond = fold_build2_loc (input_location, LT_EXPR, logical_type_node,
65a9ca82 830 tmp, build_int_cst (TREE_TYPE (tmp), 0));
dd18a33b 831
1a33dc9e
UB		 832 msg = xasprintf ("Label assigned to variable '%s' (%%ld) is not a format "
833 "label", e->symtree->name);
0d52899f 834 gfc_trans_runtime_check (true, false, cond, &se.pre, &e->where, msg,
c8fe94c7 835 fold_convert (long_integer_type_node, tmp));
cede9502 836 free (msg);
dd18a33b 837
726a989a 838 gfc_add_modify (&se.pre, io,
b078dfbf 839 fold_convert (TREE_TYPE (io), GFC_DECL_ASSIGN_ADDR (se.expr)));
726a989a 840 gfc_add_modify (&se.pre, len, GFC_DECL_STRING_LEN (se.expr));
6de9cd9a
DN		 841 }
842 else
843 {
d3642f89
FW		 844 /* General character. */
845 if (e->ts.type == BT_CHARACTER && e->rank == 0)
846 gfc_conv_expr (&se, e);
847 /* Array assigned Hollerith constant or character array. */
7e279142 848 else if (e->rank > 0 || (e->symtree && e->symtree->n.sym->as->rank > 0))
d3642f89
FW		 849 gfc_convert_array_to_string (&se, e);
850 else
851 gcc_unreachable ();
852
6de9cd9a 853 gfc_conv_string_parameter (&se);
726a989a
RB		 854 gfc_add_modify (&se.pre, io, fold_convert (TREE_TYPE (io), se.expr));
855 gfc_add_modify (&se.pre, len, 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)
e344505c 1529 mask |= set_parameter_value (&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
PT		 1664 int itype;
1665 int rank = 0;
3bc268e6 1666
29dc5138 1667 gcc_assert (sym || c);
3bc268e6 1668
29dc5138
PT		 1669 /* Build the namelist object name. */
1670
1671 string = gfc_build_cstring_const (var_name);
1672 string = gfc_build_addr_expr (pchar_type_node, string);
1673
1674 /* Build ts, as and data address using symbol or component. */
1675
51cd6b78
JD		 1676 ts = sym ? &sym->ts : &c->ts;
1677
1678 if (ts->type != BT_CLASS)
1679 as = sym ? sym->as : c->as;
1680 else
1681 as = sym ? CLASS_DATA (sym)->as : CLASS_DATA (c)->as;
29dc5138
PT		 1682
1683 addr_expr = nml_get_addr_expr (sym, c, base_addr);
1684
1685 if (as)
1686 rank = as->rank;
1687
1688 if (rank)
3bc268e6 1689 {
51cd6b78 1690 decl = sym ? sym->backend_decl : c->backend_decl;
19d36107
TB		 1691 if (sym && sym->attr.dummy)
1692 decl = build_fold_indirect_ref_loc (input_location, decl);
51cd6b78
JD		 1693
1694 if (ts->type == BT_CLASS)
1695 decl = gfc_class_data_get (decl);
19d36107 1696 dt = TREE_TYPE (decl);
29dc5138 1697 dtype = gfc_get_dtype (dt);
3bc268e6 1698 }
29dc5138
PT		 1699 else
1700 {
a11930ba 1701 itype = ts->type;
29dc5138 1702 dtype = IARG (itype << GFC_DTYPE_TYPE_SHIFT);
3bc268e6
VL		 1703 }
1704
29dc5138
PT		 1705 /* Build up the arguments for the transfer call.
1706 The call for the scalar part transfers:
1707 (address, name, type, kind or string_length, dtype) */
1708
628c189e 1709 dt_parm_addr = gfc_build_addr_expr (NULL_TREE, dt_parm);
29dc5138 1710
e73d3ca6
PT		 1711 /* Check if the derived type has a specific DTIO for the mode.
1712 Note that although namelist io is forbidden to have a format
1713 list, the specific subroutine is of the formatted kind. */
cf474530 1714 if (ts->type == BT_DERIVED || ts->type == BT_CLASS)
e73d3ca6 1715 {
cf474530
JW		 1716 gfc_symbol *derived;
1717 if (ts->type==BT_CLASS)
1718 derived = ts->u.derived->components->ts.u.derived;
1719 else
1720 derived = ts->u.derived;
1721
1722 gfc_symtree *tb_io_st = gfc_find_typebound_dtio_proc (derived,
1723 last_dt == WRITE, true);
1724
1725 if (ts->type == BT_CLASS && tb_io_st)
1726 {
1727 // polymorphic DTIO call (based on the dynamic type)
1728 gfc_se se;
1729 gfc_symtree *st = gfc_find_symtree (sym->ns->sym_root, sym->name);
1730 // build vtable expr
1731 gfc_expr *expr = gfc_get_variable_expr (st);
1732 gfc_add_vptr_component (expr);
1733 gfc_init_se (&se, NULL);
1734 se.want_pointer = 1;
1735 gfc_conv_expr (&se, expr);
1736 vtable = se.expr;
1737 // build dtio expr
1738 gfc_add_component_ref (expr,
1739 tb_io_st->n.tb->u.generic->specific_st->name);
1740 gfc_init_se (&se, NULL);
1741 se.want_pointer = 1;
1742 gfc_conv_expr (&se, expr);
1743 gfc_free_expr (expr);
1744 dtio_proc = se.expr;
1745 }
1746 else
e73d3ca6 1747 {
cf474530
JW		 1748 // non-polymorphic DTIO call (based on the declared type)
1749 gfc_symbol *dtio_sub = gfc_find_specific_dtio_proc (derived,
1750 last_dt == WRITE, true);
1751 if (dtio_sub != NULL)
1752 {
1753 dtio_proc = gfc_get_symbol_decl (dtio_sub);
1754 dtio_proc = gfc_build_addr_expr (NULL, dtio_proc);
1755 gfc_symbol *vtab = gfc_find_derived_vtab (derived);
1756 vtable = vtab->backend_decl;
1757 if (vtable == NULL_TREE)
1758 vtable = gfc_get_symbol_decl (vtab);
1759 vtable = gfc_build_addr_expr (pvoid_type_node, vtable);
1760 }
e73d3ca6
PT		 1761 }
1762 }
1763
29dc5138 1764 if (ts->type == BT_CHARACTER)
bc21d315 1765 tmp = ts->u.cl->backend_decl;
29dc5138 1766 else
5039610b 1767 tmp = build_int_cst (gfc_charlen_type_node, 0);
e73d3ca6 1768
7f72e402 1769 if (dtio_proc == null_pointer_node)
e73d3ca6
PT		 1770 tmp = build_call_expr_loc (input_location,
1771 iocall[IOCALL_SET_NML_VAL], 6,
1772 dt_parm_addr, addr_expr, string,
1773 build_int_cst (gfc_int4_type_node, ts->kind),
1774 tmp, dtype);
1775 else
1776 tmp = build_call_expr_loc (input_location,
1777 iocall[IOCALL_SET_NML_DTIO_VAL], 8,
1778 dt_parm_addr, addr_expr, string,
1779 build_int_cst (gfc_int4_type_node, ts->kind),
1780 tmp, dtype, dtio_proc, vtable);
3bc268e6 1781 gfc_add_expr_to_block (block, tmp);
29dc5138
PT		 1782
1783 /* If the object is an array, transfer rank times:
1784 (null pointer, name, stride, lbound, ubound) */
1785
1786 for ( n_dim = 0 ; n_dim < rank ; n_dim++ )
1787 {
db3927fb
AH		 1788 tmp = build_call_expr_loc (input_location,
1789 iocall[IOCALL_SET_NML_VAL_DIM], 5,
5039610b 1790 dt_parm_addr,
0522a84e 1791 build_int_cst (gfc_int4_type_node, n_dim),
19d36107
TB		 1792 gfc_conv_array_stride (decl, n_dim),
1793 gfc_conv_array_lbound (decl, n_dim),
1794 gfc_conv_array_ubound (decl, n_dim));
29dc5138
PT		 1795 gfc_add_expr_to_block (block, tmp);
1796 }
1797
e73d3ca6
PT		 1798 if (gfc_bt_struct (ts->type) && ts->u.derived->components
1799 && dtio_proc == null_pointer_node)
29dc5138
PT		 1800 {
1801 gfc_component *cmp;
1802
1803 /* Provide the RECORD_TYPE to build component references. */
1804
db3927fb
AH		 1805 tree expr = build_fold_indirect_ref_loc (input_location,
1806 addr_expr);
29dc5138 1807
bc21d315 1808 for (cmp = ts->u.derived->components; cmp; cmp = cmp->next)
29dc5138 1809 {
3b111bd7
JD		 1810 char *full_name = nml_full_name (var_name, cmp->name,
1811 ts->u.derived->attr.extension);
29dc5138
PT		 1812 transfer_namelist_element (block,
1813 full_name,
1814 NULL, cmp, expr);
cede9502 1815 free (full_name);
29dc5138
PT		 1816 }
1817 }
3bc268e6 1818}
6de9cd9a 1819
29dc5138 1820#undef IARG
29dc5138 1821
6de9cd9a
DN		 1822/* Create a data transfer statement. Not all of the fields are valid
1823 for both reading and writing, but improper use has been filtered
1824 out by now. */
1825
1826static tree
5e805e44 1827build_dt (tree function, gfc_code * code)
6de9cd9a 1828{
d4feb3d3 1829 stmtblock_t block, post_block, post_end_block, post_iu_block;
6de9cd9a 1830 gfc_dt *dt;
5e805e44 1831 tree tmp, var;
29dc5138 1832 gfc_expr *nmlname;
3bc268e6 1833 gfc_namelist *nml;
5e1bdeb7 1834 unsigned int mask = 0;
6de9cd9a 1835
5e805e44 1836 gfc_start_block (&block);
6de9cd9a 1837 gfc_init_block (&post_block);
5e805e44 1838 gfc_init_block (&post_end_block);
d4feb3d3 1839 gfc_init_block (&post_iu_block);
5e805e44
JJ		 1840
1841 var = gfc_create_var (st_parameter[IOPARM_ptype_dt].type, "dt_parm");
1842
1843 set_error_locus (&block, var, &code->loc);
6de9cd9a 1844
5e805e44
JJ		 1845 if (last_dt == IOLENGTH)
1846 {
1847 gfc_inquire *inq;
1848
1849 inq = code->ext.inquire;
6de9cd9a 1850
5e805e44
JJ		 1851 /* First check that preconditions are met. */
1852 gcc_assert (inq != NULL);
1853 gcc_assert (inq->iolength != NULL);
1854
1855 /* Connect to the iolength variable. */
1856 mask |= set_parameter_ref (&block, &post_end_block, var,
1857 IOPARM_dt_iolength, inq->iolength);
1858 dt = NULL;
1859 }
1860 else
1861 {
1862 dt = code->ext.dt;
1863 gcc_assert (dt != NULL);
1864 }
8750f9cd 1865
5e805e44 1866 if (dt && dt->io_unit)
6de9cd9a
DN		 1867 {
1868 if (dt->io_unit->ts.type == BT_CHARACTER)
1869 {
d4feb3d3
PT		 1870 mask |= set_internal_unit (&block, &post_iu_block,
1871 var, dt->io_unit);
c8dce2cf 1872 set_parameter_const (&block, var, IOPARM_common_unit,
4a8d4422
JD		 1873 dt->io_unit->ts.kind == 1 ?
1874 GFC_INTERNAL_UNIT : GFC_INTERNAL_UNIT4);
6de9cd9a 1875 }
6de9cd9a 1876 }
5e805e44
JJ		 1877 else
1878 set_parameter_const (&block, var, IOPARM_common_unit, 0);
6de9cd9a 1879
5e805e44
JJ		 1880 if (dt)
1881 {
f96d606f
JD		 1882 if (dt->iomsg)
1883 mask |= set_string (&block, &post_block, var, IOPARM_common_iomsg,
1884 dt->iomsg);
1885
1886 if (dt->iostat)
1887 mask |= set_parameter_ref (&block, &post_end_block, var,
1888 IOPARM_common_iostat, dt->iostat);
1889
1890 if (dt->err)
1891 mask |= IOPARM_common_err;
1892
1893 if (dt->eor)
1894 mask |= IOPARM_common_eor;
1895
1896 if (dt->end)
1897 mask |= IOPARM_common_end;
1898
6f0f0b2e
JD		 1899 if (dt->id)
1900 mask |= set_parameter_ref (&block, &post_end_block, var,
1901 IOPARM_dt_id, dt->id);
1902
1903 if (dt->pos)
e344505c 1904 mask |= set_parameter_value (&block, var, IOPARM_dt_pos, dt->pos);
6f0f0b2e
JD		 1905
1906 if (dt->asynchronous)
e344505c
JD		 1907 mask |= set_string (&block, &post_block, var,
1908 IOPARM_dt_asynchronous, dt->asynchronous);
6f0f0b2e
JD		 1909
1910 if (dt->blank)
1911 mask |= set_string (&block, &post_block, var, IOPARM_dt_blank,
1912 dt->blank);
1913
1914 if (dt->decimal)
1915 mask |= set_string (&block, &post_block, var, IOPARM_dt_decimal,
1916 dt->decimal);
1917
1918 if (dt->delim)
1919 mask |= set_string (&block, &post_block, var, IOPARM_dt_delim,
1920 dt->delim);
1921
1922 if (dt->pad)
1923 mask |= set_string (&block, &post_block, var, IOPARM_dt_pad,
1924 dt->pad);
1925
1926 if (dt->round)
1927 mask |= set_string (&block, &post_block, var, IOPARM_dt_round,
1928 dt->round);
1929
1930 if (dt->sign)
1931 mask |= set_string (&block, &post_block, var, IOPARM_dt_sign,
1932 dt->sign);
1933
5e805e44 1934 if (dt->rec)
e344505c 1935 mask |= set_parameter_value (&block, var, IOPARM_dt_rec, dt->rec);
6de9cd9a 1936
5e805e44
JJ		 1937 if (dt->advance)
1938 mask |= set_string (&block, &post_block, var, IOPARM_dt_advance,
1939 dt->advance);
6de9cd9a 1940
5e805e44 1941 if (dt->format_expr)
9341698a 1942 mask |= set_string (&block, &post_end_block, var, IOPARM_dt_format,
5e805e44 1943 dt->format_expr);
6de9cd9a 1944
5e805e44
JJ		 1945 if (dt->format_label)
1946 {
1947 if (dt->format_label == &format_asterisk)
1948 mask |= IOPARM_dt_list_format;
1949 else
1950 mask |= set_string (&block, &post_block, var, IOPARM_dt_format,
1951 dt->format_label->format);
1952 }
6de9cd9a 1953
5e805e44
JJ		 1954 if (dt->size)
1955 mask |= set_parameter_ref (&block, &post_end_block, var,
1956 IOPARM_dt_size, dt->size);
6de9cd9a 1957
4a8d4422
JD		 1958 if (dt->udtio)
1959 mask |= IOPARM_dt_dtio;
1960
6869e9c6
FR		 1961 if (dt->default_exp)
1962 mask |= IOPARM_dt_default_exp;
1963
5e805e44
JJ		 1964 if (dt->namelist)
1965 {
1966 if (dt->format_expr || dt->format_label)
1967 gfc_internal_error ("build_dt: format with namelist");
1968
b7e75771
JD		 1969 nmlname = gfc_get_character_expr (gfc_default_character_kind, NULL,
1970 dt->namelist->name,
1971 strlen (dt->namelist->name));
29dc5138 1972
5e805e44
JJ		 1973 mask |= set_string (&block, &post_block, var, IOPARM_dt_namelist_name,
1974 nmlname);
29dc5138 1975
76c1a7ec
TB		 1976 gfc_free_expr (nmlname);
1977
5e805e44
JJ		 1978 if (last_dt == READ)
1979 mask |= IOPARM_dt_namelist_read_mode;
29dc5138 1980
5e805e44 1981 set_parameter_const (&block, var, IOPARM_common_flags, mask);
29dc5138 1982
5e805e44
JJ		 1983 dt_parm = var;
1984
1985 for (nml = dt->namelist->namelist; nml; nml = nml->next)
1986 transfer_namelist_element (&block, nml->sym->name, nml->sym,
71ff73f3 1987 NULL, NULL_TREE);
5e805e44
JJ		 1988 }
1989 else
1990 set_parameter_const (&block, var, IOPARM_common_flags, mask);
f96d606f
JD		 1991
1992 if (dt->io_unit && dt->io_unit->ts.type == BT_INTEGER)
e344505c
JD		 1993 set_parameter_value_chk (&block, dt->iostat, var,
1994 IOPARM_common_unit, dt->io_unit);
6de9cd9a 1995 }
5e805e44
JJ		 1996 else
1997 set_parameter_const (&block, var, IOPARM_common_flags, mask);
6de9cd9a 1998
628c189e 1999 tmp = gfc_build_addr_expr (NULL_TREE, var);
033e7d21 2000 tmp = build_call_expr_loc (UNKNOWN_LOCATION,
db3927fb 2001 function, 1, tmp);
6de9cd9a
DN		 2002 gfc_add_expr_to_block (&block, tmp);
2003
2004 gfc_add_block_to_block (&block, &post_block);
2005
5e805e44
JJ		 2006 dt_parm = var;
2007 dt_post_end_block = &post_end_block;
2008
bc51e726
JD		 2009 /* Set implied do loop exit condition. */
2010 if (last_dt == READ || last_dt == WRITE)
2011 {
2012 gfc_st_parameter_field *p = &st_parameter_field[IOPARM_common_flags];
2013
65a9ca82
TB		 2014 tmp = fold_build3_loc (input_location, COMPONENT_REF,
2015 st_parameter[IOPARM_ptype_common].type,
2016 dt_parm, TYPE_FIELDS (TREE_TYPE (dt_parm)),
2017 NULL_TREE);
2018 tmp = fold_build3_loc (input_location, COMPONENT_REF,
2019 TREE_TYPE (p->field), tmp, p->field, NULL_TREE);
2020 tmp = fold_build2_loc (input_location, BIT_AND_EXPR, TREE_TYPE (tmp),
2021 tmp, build_int_cst (TREE_TYPE (tmp),
2022 IOPARM_common_libreturn_mask));
bc51e726
JD		 2023 }
2024 else /* IOLENGTH */
2025 tmp = NULL_TREE;
2026
2027 gfc_add_expr_to_block (&block, gfc_trans_code_cond (code->block->next, tmp));
5e805e44 2028
d4feb3d3
PT		 2029 gfc_add_block_to_block (&block, &post_iu_block);
2030
5e805e44
JJ		 2031 dt_parm = NULL;
2032 dt_post_end_block = NULL;
2033
6de9cd9a
DN		 2034 return gfc_finish_block (&block);
2035}
2036
2037
8750f9cd
JB		 2038/* Translate the IOLENGTH form of an INQUIRE statement. We treat
2039 this as a third sort of data transfer statement, except that
e7dc5b4f 2040 lengths are summed instead of actually transferring any data. */
8750f9cd
JB		 2041
2042tree
2043gfc_trans_iolength (gfc_code * code)
2044{
8750f9cd 2045 last_dt = IOLENGTH;
5e805e44 2046 return build_dt (iocall[IOCALL_IOLENGTH], code);
8750f9cd
JB		 2047}
2048
2049
6de9cd9a
DN		 2050/* Translate a READ statement. */
2051
2052tree
2053gfc_trans_read (gfc_code * code)
2054{
6de9cd9a 2055 last_dt = READ;
5e805e44 2056 return build_dt (iocall[IOCALL_READ], code);
6de9cd9a
DN		 2057}
2058
2059
2060/* Translate a WRITE statement */
2061
2062tree
2063gfc_trans_write (gfc_code * code)
2064{
6de9cd9a 2065 last_dt = WRITE;
5e805e44 2066 return build_dt (iocall[IOCALL_WRITE], code);
6de9cd9a
DN		 2067}
2068
2069
2070/* Finish a data transfer statement. */
2071
2072tree
2073gfc_trans_dt_end (gfc_code * code)
2074{
2075 tree function, tmp;
2076 stmtblock_t block;
2077
2078 gfc_init_block (&block);
2079
8750f9cd
JB		 2080 switch (last_dt)
2081 {
2082 case READ:
5e805e44 2083 function = iocall[IOCALL_READ_DONE];
8750f9cd
JB		 2084 break;
2085
2086 case WRITE:
5e805e44 2087 function = iocall[IOCALL_WRITE_DONE];
8750f9cd
JB		 2088 break;
2089
2090 case IOLENGTH:
5e805e44 2091 function = iocall[IOCALL_IOLENGTH_DONE];
8750f9cd
JB		 2092 break;
2093
2094 default:
6e45f57b 2095 gcc_unreachable ();
8750f9cd 2096 }
6de9cd9a 2097
628c189e 2098 tmp = gfc_build_addr_expr (NULL_TREE, dt_parm);
db3927fb
AH		 2099 tmp = build_call_expr_loc (input_location,
2100 function, 1, tmp);
6de9cd9a 2101 gfc_add_expr_to_block (&block, tmp);
5e805e44
JJ		 2102 gfc_add_block_to_block (&block, dt_post_end_block);
2103 gfc_init_block (dt_post_end_block);
6de9cd9a 2104
8750f9cd
JB		 2105 if (last_dt != IOLENGTH)
2106 {
6e45f57b 2107 gcc_assert (code->ext.dt != NULL);
5e805e44 2108 io_result (&block, dt_parm, code->ext.dt->err,
8750f9cd
JB		 2109 code->ext.dt->end, code->ext.dt->eor);
2110 }
6de9cd9a
DN		 2111
2112 return gfc_finish_block (&block);
2113}
2114
d2ccf6aa 2115static void
e73d3ca6
PT		 2116transfer_expr (gfc_se * se, gfc_typespec * ts, tree addr_expr,
2117 gfc_code * code, tree vptr);
d2ccf6aa
VL		 2118
2119/* Given an array field in a derived type variable, generate the code
2120 for the loop that iterates over array elements, and the code that
2121 accesses those array elements. Use transfer_expr to generate code
2122 for transferring that element. Because elements may also be
2123 derived types, transfer_expr and transfer_array_component are mutually
2124 recursive. */
2125
2126static tree
bdfd2ff0 2127transfer_array_component (tree expr, gfc_component * cm, locus * where)
d2ccf6aa
VL		 2128{
2129 tree tmp;
2130 stmtblock_t body;
2131 stmtblock_t block;
2132 gfc_loopinfo loop;
2133 int n;
2134 gfc_ss *ss;
2135 gfc_se se;
08dcec61 2136 gfc_array_info *ss_array;
d2ccf6aa
VL		 2137
2138 gfc_start_block (&block);
2139 gfc_init_se (&se, NULL);
2140
2141 /* Create and initialize Scalarization Status. Unlike in
2142 gfc_trans_transfer, we can't simply use gfc_walk_expr to take
2143 care of this task, because we don't have a gfc_expr at hand.
2144 Build one manually, as in gfc_trans_subarray_assign. */
2145
66877276
MM		 2146 ss = gfc_get_array_ss (gfc_ss_terminator, NULL, cm->as->rank,
2147 GFC_SS_COMPONENT);
1838afec 2148 ss_array = &ss->info->data.array;
276515e6
PT		 2149
2150 if (cm->attr.pdt_array)
2151 ss_array->shape = NULL;
2152 else
2153 ss_array->shape = gfc_get_shape (cm->as->rank);
2154
08dcec61
MM		 2155 ss_array->descriptor = expr;
2156 ss_array->data = gfc_conv_array_data (expr);
2157 ss_array->offset = gfc_conv_array_offset (expr);
d2ccf6aa
VL		 2158 for (n = 0; n < cm->as->rank; n++)
2159 {
08dcec61
MM		 2160 ss_array->start[n] = gfc_conv_array_lbound (expr, n);
2161 ss_array->stride[n] = gfc_index_one_node;
d2ccf6aa 2162
276515e6
PT		 2163 if (cm->attr.pdt_array)
2164 ss_array->end[n] = gfc_conv_array_ubound (expr, n);
2165 else
2166 {
2167 mpz_init (ss_array->shape[n]);
2168 mpz_sub (ss_array->shape[n], cm->as->upper[n]->value.integer,
2169 cm->as->lower[n]->value.integer);
2170 mpz_add_ui (ss_array->shape[n], ss_array->shape[n], 1);
2171 }
d2ccf6aa
VL		 2172 }
2173
f7b529fa 2174 /* Once we got ss, we use scalarizer to create the loop. */
d2ccf6aa
VL		 2175
2176 gfc_init_loopinfo (&loop);
2177 gfc_add_ss_to_loop (&loop, ss);
2178 gfc_conv_ss_startstride (&loop);
bdfd2ff0 2179 gfc_conv_loop_setup (&loop, where);
d2ccf6aa
VL		 2180 gfc_mark_ss_chain_used (ss, 1);
2181 gfc_start_scalarized_body (&loop, &body);
2182
2183 gfc_copy_loopinfo_to_se (&se, &loop);
2184 se.ss = ss;
2185
2186 /* gfc_conv_tmp_array_ref assumes that se.expr contains the array. */
2187 se.expr = expr;
2188 gfc_conv_tmp_array_ref (&se);
2189
2190 /* Now se.expr contains an element of the array. Take the address and pass
2191 it to the IO routines. */
628c189e 2192 tmp = gfc_build_addr_expr (NULL_TREE, se.expr);
e73d3ca6 2193 transfer_expr (&se, &cm->ts, tmp, NULL, NULL_TREE);
d2ccf6aa
VL		 2194
2195 /* We are done now with the loop body. Wrap up the scalarizer and
f7b529fa 2196 return. */
d2ccf6aa
VL		 2197
2198 gfc_add_block_to_block (&body, &se.pre);
2199 gfc_add_block_to_block (&body, &se.post);
2200
2201 gfc_trans_scalarizing_loops (&loop, &body);
2202
2203 gfc_add_block_to_block (&block, &loop.pre);
2204 gfc_add_block_to_block (&block, &loop.post);
2205
276515e6
PT		 2206 if (!cm->attr.pdt_array)
2207 {
2208 gcc_assert (ss_array->shape != NULL);
2209 gfc_free_shape (&ss_array->shape, cm->as->rank);
2210 }
96654664
PB		 2211 gfc_cleanup_loop (&loop);
2212
d2ccf6aa
VL		 2213 return gfc_finish_block (&block);
2214}
6de9cd9a 2215
e73d3ca6
PT		 2216
2217/* Helper function for transfer_expr that looks for the DTIO procedure
2218 either as a typebound binding or in a generic interface. If present,
2219 the address expression of the procedure is returned. It is assumed
2220 that the procedure interface has been checked during resolution. */
2221
2222static tree
2223get_dtio_proc (gfc_typespec * ts, gfc_code * code, gfc_symbol **dtio_sub)
2224{
2225 gfc_symbol *derived;
2226 bool formatted = false;
2227 gfc_dt *dt = code->ext.dt;
2228
bef016bf 2229 if (dt)
e73d3ca6 2230 {
bef016bf
JD		 2231 char *fmt = NULL;
2232
2233 if (dt->format_label == &format_asterisk)
2234 {
2235 /* List directed io must call the formatted DTIO procedure. */
2236 formatted = true;
2237 }
2238 else if (dt->format_expr)
2239 fmt = gfc_widechar_to_char (dt->format_expr->value.character.string,
2240 -1);
2241 else if (dt->format_label)
2242 fmt = gfc_widechar_to_char (dt->format_label->format->value.character.string,
2243 -1);
2244 if (fmt && strtok (fmt, "DT") != NULL)
e73d3ca6 2245 formatted = true;
bef016bf 2246
e73d3ca6
PT		 2247 }
2248
707024b2
JW		 2249 if (ts->type == BT_CLASS)
2250 derived = ts->u.derived->components->ts.u.derived;
2251 else
2252 derived = ts->u.derived;
2253
2254 gfc_symtree *tb_io_st = gfc_find_typebound_dtio_proc (derived,
2255 last_dt == WRITE, formatted);
2256 if (ts->type == BT_CLASS && tb_io_st)
e4e659b9 2257 {
707024b2
JW		 2258 // polymorphic DTIO call (based on the dynamic type)
2259 gfc_se se;
2260 gfc_expr *expr = gfc_find_and_cut_at_last_class_ref (code->expr1);
2261 gfc_add_vptr_component (expr);
2262 gfc_add_component_ref (expr,
2263 tb_io_st->n.tb->u.generic->specific_st->name);
2264 *dtio_sub = tb_io_st->n.tb->u.generic->specific->u.specific->n.sym;
2265 gfc_init_se (&se, NULL);
2266 se.want_pointer = 1;
2267 gfc_conv_expr (&se, expr);
2268 gfc_free_expr (expr);
2269 return se.expr;
2270 }
2271 else
2272 {
2273 // non-polymorphic DTIO call (based on the declared type)
e4e659b9
JW		 2274 *dtio_sub = gfc_find_specific_dtio_proc (derived, last_dt == WRITE,
2275 formatted);
2276
2277 if (*dtio_sub)
2278 return gfc_build_addr_expr (NULL, gfc_get_symbol_decl (*dtio_sub));
2279 }
e73d3ca6
PT		 2280
2281 return NULL_TREE;
e73d3ca6
PT		 2282}
2283
6de9cd9a
DN		 2284/* Generate the call for a scalar transfer node. */
2285
2286static void
e73d3ca6
PT		 2287transfer_expr (gfc_se * se, gfc_typespec * ts, tree addr_expr,
2288 gfc_code * code, tree vptr)
6de9cd9a 2289{
8a221914 2290 tree tmp, function, arg2, arg3, field, expr;
6de9cd9a
DN		 2291 gfc_component *c;
2292 int kind;
2293
a8b3b0b6
CR		 2294 /* It is possible to get a C_NULL_PTR or C_NULL_FUNPTR expression here if
2295 the user says something like: print *, 'c_null_ptr: ', c_null_ptr
2296 We need to translate the expression to a constant if it's either
aa5e22f0
CR		 2297 C_NULL_PTR or C_NULL_FUNPTR. We could also get a user variable of
2298 type C_PTR or C_FUNPTR, in which case the ts->type may no longer be
2299 BT_DERIVED (could have been changed by gfc_conv_expr). */
bc21d315
JW		 2300 if ((ts->type == BT_DERIVED || ts->type == BT_INTEGER)
2301 && ts->u.derived != NULL
2302 && (ts->is_iso_c == 1 || ts->u.derived->ts.is_iso_c == 1))
a8b3b0b6 2303 {
cadddfdd
TB		 2304 ts->type = BT_INTEGER;
2305 ts->kind = gfc_index_integer_kind;
a8b3b0b6 2306 }
8019105d 2307
6de9cd9a
DN		 2308 kind = ts->kind;
2309 function = NULL;
2310 arg2 = NULL;
8a221914 2311 arg3 = NULL;
6de9cd9a
DN		 2312
2313 switch (ts->type)
2314 {
2315 case BT_INTEGER:
df09d1d5 2316 arg2 = build_int_cst (integer_type_node, kind);
6eb6875d
TK		 2317 if (last_dt == READ)
2318 function = iocall[IOCALL_X_INTEGER];
2319 else
2320 function = iocall[IOCALL_X_INTEGER_WRITE];
2321
6de9cd9a
DN		 2322 break;
2323
2324 case BT_REAL:
df09d1d5 2325 arg2 = build_int_cst (integer_type_node, kind);
6eb6875d 2326 if (last_dt == READ)
1ec601bf
FXC		 2327 {
2328 if (gfc_real16_is_float128 && ts->kind == 16)
2329 function = iocall[IOCALL_X_REAL128];
2330 else
2331 function = iocall[IOCALL_X_REAL];
2332 }
6eb6875d 2333 else
1ec601bf
FXC		 2334 {
2335 if (gfc_real16_is_float128 && ts->kind == 16)
2336 function = iocall[IOCALL_X_REAL128_WRITE];
2337 else
2338 function = iocall[IOCALL_X_REAL_WRITE];
2339 }
6eb6875d 2340
6de9cd9a
DN		 2341 break;
2342
2343 case BT_COMPLEX:
df09d1d5 2344 arg2 = build_int_cst (integer_type_node, kind);
6eb6875d 2345 if (last_dt == READ)
1ec601bf
FXC		 2346 {
2347 if (gfc_real16_is_float128 && ts->kind == 16)
2348 function = iocall[IOCALL_X_COMPLEX128];
2349 else
2350 function = iocall[IOCALL_X_COMPLEX];
2351 }
6eb6875d 2352 else
1ec601bf
FXC		 2353 {
2354 if (gfc_real16_is_float128 && ts->kind == 16)
2355 function = iocall[IOCALL_X_COMPLEX128_WRITE];
2356 else
2357 function = iocall[IOCALL_X_COMPLEX_WRITE];
2358 }
6eb6875d 2359
6de9cd9a
DN		 2360 break;
2361
2362 case BT_LOGICAL:
df09d1d5 2363 arg2 = build_int_cst (integer_type_node, kind);
6eb6875d
TK		 2364 if (last_dt == READ)
2365 function = iocall[IOCALL_X_LOGICAL];
2366 else
2367 function = iocall[IOCALL_X_LOGICAL_WRITE];
2368
6de9cd9a
DN		 2369 break;
2370
2371 case BT_CHARACTER:
8a221914
JD		 2372 if (kind == 4)
2373 {
2374 if (se->string_length)
2375 arg2 = se->string_length;
2376 else
2377 {
db3927fb
AH		 2378 tmp = build_fold_indirect_ref_loc (input_location,
2379 addr_expr);
8a221914
JD		 2380 gcc_assert (TREE_CODE (TREE_TYPE (tmp)) == ARRAY_TYPE);
2381 arg2 = TYPE_MAX_VALUE (TYPE_DOMAIN (TREE_TYPE (tmp)));
2382 arg2 = fold_convert (gfc_charlen_type_node, arg2);
2383 }
df09d1d5 2384 arg3 = build_int_cst (integer_type_node, kind);
6eb6875d
TK		 2385 if (last_dt == READ)
2386 function = iocall[IOCALL_X_CHARACTER_WIDE];
2387 else
2388 function = iocall[IOCALL_X_CHARACTER_WIDE_WRITE];
8019105d 2389
628c189e 2390 tmp = gfc_build_addr_expr (NULL_TREE, dt_parm);
db3927fb
AH		 2391 tmp = build_call_expr_loc (input_location,
2392 function, 4, tmp, addr_expr, arg2, arg3);
8a221914
JD		 2393 gfc_add_expr_to_block (&se->pre, tmp);
2394 gfc_add_block_to_block (&se->pre, &se->post);
2395 return;
2396 }
1cc0e193 2397 /* Fall through. */
7b95e2a8 2398 case BT_HOLLERITH:
d2ccf6aa
VL		 2399 if (se->string_length)
2400 arg2 = se->string_length;
2401 else
2402 {
db3927fb
AH		 2403 tmp = build_fold_indirect_ref_loc (input_location,
2404 addr_expr);
d2ccf6aa
VL		 2405 gcc_assert (TREE_CODE (TREE_TYPE (tmp)) == ARRAY_TYPE);
2406 arg2 = TYPE_MAX_VALUE (TYPE_DOMAIN (TREE_TYPE (tmp)));
2407 }
6eb6875d
TK		 2408 if (last_dt == READ)
2409 function = iocall[IOCALL_X_CHARACTER];
2410 else
2411 function = iocall[IOCALL_X_CHARACTER_WRITE];
2412
6de9cd9a
DN		 2413 break;
2414
f6288c24 2415 case_bt_struct:
e73d3ca6 2416 case BT_CLASS:
fc2655fb
TB		 2417 if (ts->u.derived->components == NULL)
2418 return;
9b460e2e 2419 if (gfc_bt_struct (ts->type) || ts->type == BT_CLASS)
e73d3ca6
PT		 2420 {
2421 gfc_symbol *derived;
2422 gfc_symbol *dtio_sub = NULL;
2423 /* Test for a specific DTIO subroutine. */
2424 if (ts->type == BT_DERIVED)
2425 derived = ts->u.derived;
2426 else
2427 derived = ts->u.derived->components->ts.u.derived;
fc2655fb 2428
e73d3ca6
PT		 2429 if (derived->attr.has_dtio_procs)
2430 arg2 = get_dtio_proc (ts, code, &dtio_sub);
6de9cd9a 2431
6c0347f6 2432 if ((dtio_sub != NULL) && (last_dt != IOLENGTH))
e73d3ca6
PT		 2433 {
2434 tree decl;
2435 decl = build_fold_indirect_ref_loc (input_location,
2436 se->expr);
2437 /* Remember that the first dummy of the DTIO subroutines
2438 is CLASS(derived) for extensible derived types, so the
2439 conversion must be done here for derived type and for
2440 scalarized CLASS array element io-list objects. */
2441 if ((ts->type == BT_DERIVED
2442 && !(ts->u.derived->attr.sequence
2443 || ts->u.derived->attr.is_bind_c))
2444 || (ts->type == BT_CLASS
2445 && !GFC_CLASS_TYPE_P (TREE_TYPE (decl))))
2446 gfc_conv_derived_to_class (se, code->expr1,
2447 dtio_sub->formal->sym->ts,
2448 vptr, false, false);
2449 addr_expr = se->expr;
2450 function = iocall[IOCALL_X_DERIVED];
2451 break;
2452 }
9b460e2e 2453 else if (gfc_bt_struct (ts->type))
e73d3ca6
PT		 2454 {
2455 /* Recurse into the elements of the derived type. */
2456 expr = gfc_evaluate_now (addr_expr, &se->pre);
2457 expr = build_fold_indirect_ref_loc (input_location,
2458 expr);
8019105d 2459
e73d3ca6
PT		 2460 /* Make sure that the derived type has been built. An external
2461 function, if only referenced in an io statement, requires this
2462 check (see PR58771). */
2463 if (ts->u.derived->backend_decl == NULL_TREE)
2464 (void) gfc_typenode_for_spec (ts);
2465
2466 for (c = ts->u.derived->components; c; c = c->next)
2467 {
276515e6
PT		 2468 /* Ignore hidden string lengths. */
2469 if (c->name[0] == '_')
2470 continue;
2471
e73d3ca6
PT		 2472 field = c->backend_decl;
2473 gcc_assert (field && TREE_CODE (field) == FIELD_DECL);
2474
2475 tmp = fold_build3_loc (UNKNOWN_LOCATION,
2476 COMPONENT_REF, TREE_TYPE (field),
2477 expr, field, NULL_TREE);
2478
2479 if (c->attr.dimension)
2480 {
2481 tmp = transfer_array_component (tmp, c, & code->loc);
2482 gfc_add_expr_to_block (&se->pre, tmp);
2483 }
2484 else
2485 {
276515e6
PT		 2486 tree strlen = NULL_TREE;
2487
2488 if (!c->attr.pointer && !c->attr.pdt_string)
e73d3ca6 2489 tmp = gfc_build_addr_expr (NULL_TREE, tmp);
276515e6
PT		 2490
2491 /* Use the hidden string length for pdt strings. */
2492 if (c->attr.pdt_string
2493 && gfc_deferred_strlen (c, &strlen)
2494 && strlen != NULL_TREE)
2495 {
2496 strlen = fold_build3_loc (UNKNOWN_LOCATION,
2497 COMPONENT_REF,
2498 TREE_TYPE (strlen),
2499 expr, strlen, NULL_TREE);
2500 se->string_length = strlen;
2501 }
2502
e73d3ca6 2503 transfer_expr (se, &c->ts, tmp, code, NULL_TREE);
276515e6
PT		 2504
2505 /* Reset so that the pdt string length does not propagate
2506 through to other strings. */
2507 if (c->attr.pdt_string && strlen)
2508 se->string_length = NULL_TREE;
e73d3ca6
PT		 2509 }
2510 }
2511 return;
2512 }
2513 /* If a CLASS object gets through to here, fall through and ICE. */
6de9cd9a 2514 }
81fea426 2515 gcc_fallthrough ();
6de9cd9a 2516 default:
17d5d49f 2517 gfc_internal_error ("Bad IO basetype (%d)", ts->type);
6de9cd9a
DN		 2518 }
2519
628c189e 2520 tmp = gfc_build_addr_expr (NULL_TREE, dt_parm);
db3927fb
AH		 2521 tmp = build_call_expr_loc (input_location,
2522 function, 3, tmp, addr_expr, arg2);
6de9cd9a
DN		 2523 gfc_add_expr_to_block (&se->pre, tmp);
2524 gfc_add_block_to_block (&se->pre, &se->post);
8750f9cd 2525
6de9cd9a
DN		 2526}
2527
2528
18623fae
JB		 2529/* Generate a call to pass an array descriptor to the IO library. The
2530 array should be of one of the intrinsic types. */
2531
2532static void
2533transfer_array_desc (gfc_se * se, gfc_typespec * ts, tree addr_expr)
2534{
6eb6875d 2535 tree tmp, charlen_arg, kind_arg, io_call;
18623fae
JB		 2536
2537 if (ts->type == BT_CHARACTER)
2538 charlen_arg = se->string_length;
2539 else
df09d1d5 2540 charlen_arg = build_int_cst (gfc_charlen_type_node, 0);
18623fae 2541
df09d1d5 2542 kind_arg = build_int_cst (integer_type_node, ts->kind);
e5ef4b3b 2543
628c189e 2544 tmp = gfc_build_addr_expr (NULL_TREE, dt_parm);
6eb6875d
TK		 2545 if (last_dt == READ)
2546 io_call = iocall[IOCALL_X_ARRAY];
2547 else
2548 io_call = iocall[IOCALL_X_ARRAY_WRITE];
2549
033e7d21 2550 tmp = build_call_expr_loc (UNKNOWN_LOCATION,
6eb6875d 2551 io_call, 4,
5039610b 2552 tmp, addr_expr, kind_arg, charlen_arg);
18623fae
JB		 2553 gfc_add_expr_to_block (&se->pre, tmp);
2554 gfc_add_block_to_block (&se->pre, &se->post);
2555}
2556
2557
6de9cd9a
DN		 2558/* gfc_trans_transfer()-- Translate a TRANSFER code node */
2559
2560tree
2561gfc_trans_transfer (gfc_code * code)
2562{
2563 stmtblock_t block, body;
2564 gfc_loopinfo loop;
2565 gfc_expr *expr;
99c7ab42 2566 gfc_ref *ref;
6de9cd9a
DN		 2567 gfc_ss *ss;
2568 gfc_se se;
2569 tree tmp;
e73d3ca6 2570 tree vptr;
c63173dd 2571 int n;
6de9cd9a
DN		 2572
2573 gfc_start_block (&block);
18623fae 2574 gfc_init_block (&body);
6de9cd9a 2575
a513927a 2576 expr = code->expr1;
99c7ab42 2577 ref = NULL;
6de9cd9a
DN		 2578 gfc_init_se (&se, NULL);
2579
2960a368 2580 if (expr->rank == 0)
18623fae 2581 {
815d8045 2582 /* Transfer a scalar value. */
e73d3ca6
PT		 2583 if (expr->ts.type == BT_CLASS)
2584 {
2585 se.want_pointer = 1;
2586 gfc_conv_expr (&se, expr);
2587 vptr = gfc_get_vptr_from_expr (se.expr);
2588 }
2589 else
2590 {
2591 vptr = NULL_TREE;
2592 gfc_conv_expr_reference (&se, expr);
2593 }
2594 transfer_expr (&se, &expr->ts, se.expr, code, vptr);
18623fae 2595 }
815d8045 2596 else
6de9cd9a 2597 {
99c7ab42
PT		 2598 /* Transfer an array. If it is an array of an intrinsic
2599 type, pass the descriptor to the library. Otherwise
2600 scalarize the transfer. */
2a573572 2601 if (expr->ref && !gfc_is_proc_ptr_comp (expr))
99c7ab42
PT		 2602 {
2603 for (ref = expr->ref; ref && ref->type != REF_ARRAY;
fc2655fb
TB		 2604 ref = ref->next);
2605 gcc_assert (ref && ref->type == REF_ARRAY);
99c7ab42
PT		 2606 }
2607
ff3598bc
PT		 2608 if (expr->ts.type != BT_CLASS
2609 && expr->expr_type == EXPR_VARIABLE
2610 && gfc_expr_attr (expr).pointer)
2611 goto scalarize;
2612
2613
e73d3ca6
PT		 2614 if (!(gfc_bt_struct (expr->ts.type)
2615 || expr->ts.type == BT_CLASS)
1d6b7f39
PT		 2616 && ref && ref->next == NULL
2617 && !is_subref_array (expr))
815d8045 2618 {
c63173dd
PT		 2619 bool seen_vector = false;
2620
2621 if (ref && ref->u.ar.type == AR_SECTION)
2622 {
2623 for (n = 0; n < ref->u.ar.dimen; n++)
2624 if (ref->u.ar.dimen_type[n] == DIMEN_VECTOR)
502af491
PCC		 2625 {
2626 seen_vector = true;
2627 break;
2628 }
c63173dd
PT		 2629 }
2630
2631 if (seen_vector && last_dt == READ)
2632 {
2633 /* Create a temp, read to that and copy it back. */
430f2d1f 2634 gfc_conv_subref_array_arg (&se, expr, 0, INTENT_OUT, false);
c63173dd
PT		 2635 tmp = se.expr;
2636 }
2637 else
2638 {
2639 /* Get the descriptor. */
2960a368 2640 gfc_conv_expr_descriptor (&se, expr);
628c189e 2641 tmp = gfc_build_addr_expr (NULL_TREE, se.expr);
c63173dd
PT		 2642 }
2643
99c7ab42
PT		 2644 transfer_array_desc (&se, &expr->ts, tmp);
2645 goto finish_block_label;
815d8045 2646 }
2960a368 2647
ff3598bc 2648scalarize:
6de9cd9a 2649 /* Initialize the scalarizer. */
2960a368 2650 ss = gfc_walk_expr (expr);
6de9cd9a
DN		 2651 gfc_init_loopinfo (&loop);
2652 gfc_add_ss_to_loop (&loop, ss);
2653
2654 /* Initialize the loop. */
2655 gfc_conv_ss_startstride (&loop);
a513927a 2656 gfc_conv_loop_setup (&loop, &code->expr1->where);
6de9cd9a
DN		 2657
2658 /* The main loop body. */
2659 gfc_mark_ss_chain_used (ss, 1);
2660 gfc_start_scalarized_body (&loop, &body);
2661
2662 gfc_copy_loopinfo_to_se (&se, &loop);
2663 se.ss = ss;
ff3598bc 2664
18623fae 2665 gfc_conv_expr_reference (&se, expr);
ff3598bc 2666
e73d3ca6
PT		 2667 if (expr->ts.type == BT_CLASS)
2668 vptr = gfc_get_vptr_from_expr (ss->info->data.array.descriptor);
2669 else
2670 vptr = NULL_TREE;
2671 transfer_expr (&se, &expr->ts, se.expr, code, vptr);
18623fae 2672 }
815d8045
JB		 2673
2674 finish_block_label:
6de9cd9a
DN		 2675
2676 gfc_add_block_to_block (&body, &se.pre);
2677 gfc_add_block_to_block (&body, &se.post);
2678
2679 if (se.ss == NULL)
2680 tmp = gfc_finish_block (&body);
2681 else
2682 {
770caa74 2683 gcc_assert (expr->rank != 0);
6e45f57b 2684 gcc_assert (se.ss == gfc_ss_terminator);
6de9cd9a
DN		 2685 gfc_trans_scalarizing_loops (&loop, &body);
2686
2687 gfc_add_block_to_block (&loop.pre, &loop.post);
2688 tmp = gfc_finish_block (&loop.pre);
2689 gfc_cleanup_loop (&loop);
2690 }
2691
2692 gfc_add_expr_to_block (&block, tmp);
2693
d2ccf6aa 2694 return gfc_finish_block (&block);
6de9cd9a
DN		 2695}
2696
2697#include "gt-fortran-trans-io.h"
Mirror of https://gcc.gnu.org/git/gcc.git