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6de9cd9a | 1 | /* Header for code translation functions |
818ab71a | 2 | Copyright (C) 2002-2016 Free Software Foundation, Inc. |
6de9cd9a DN |
3 | Contributed by Paul Brook |
4 | ||
9fc4d79b | 5 | This file is part of GCC. |
6de9cd9a | 6 | |
9fc4d79b TS |
7 | GCC is free software; you can redistribute it and/or modify it under |
8 | the terms of the GNU General Public License as published by the Free | |
d234d788 | 9 | Software Foundation; either version 3, or (at your option) any later |
9fc4d79b | 10 | version. |
6de9cd9a | 11 | |
9fc4d79b TS |
12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 | for more details. | |
6de9cd9a DN |
16 | |
17 | You should have received a copy of the GNU General Public License | |
d234d788 NC |
18 | along with GCC; see the file COPYING3. If not see |
19 | <http://www.gnu.org/licenses/>. */ | |
6de9cd9a DN |
20 | |
21 | #ifndef GFC_TRANS_H | |
22 | #define GFC_TRANS_H | |
23 | ||
ed9c79e1 JJ |
24 | #include "predict.h" /* For enum br_predictor and PRED_*. */ |
25 | ||
6de9cd9a DN |
26 | /* Mangled symbols take the form __module__name. */ |
27 | #define GFC_MAX_MANGLED_SYMBOL_LEN (GFC_MAX_SYMBOL_LEN*2+4) | |
28 | ||
29 | /* Struct for holding a block of statements. It should be treated as an | |
30 | opaque entity and not modified directly. This allows us to change the | |
31 | underlying representation of statement lists. */ | |
32 | typedef struct | |
33 | { | |
34 | tree head; | |
b40410b9 | 35 | unsigned int has_scope:1; |
6de9cd9a DN |
36 | } |
37 | stmtblock_t; | |
38 | ||
1f2959f0 | 39 | /* a simplified expression */ |
6de9cd9a DN |
40 | typedef struct gfc_se |
41 | { | |
42 | /* Code blocks to be executed before and after using the value. */ | |
43 | stmtblock_t pre; | |
44 | stmtblock_t post; | |
45 | ||
46 | /* the result of the expression */ | |
47 | tree expr; | |
48 | ||
49 | /* The length of a character string value. */ | |
50 | tree string_length; | |
51 | ||
f3b0bb7a AV |
52 | /* When expr is a reference to a class object, store its vptr access |
53 | here. */ | |
54 | tree class_vptr; | |
55 | ||
6de9cd9a DN |
56 | /* If set gfc_conv_variable will return an expression for the array |
57 | descriptor. When set, want_pointer should also be set. | |
58 | If not set scalarizing variables will be substituted. */ | |
59 | unsigned descriptor_only:1; | |
60 | ||
61 | /* When this is set gfc_conv_expr returns the address of a variable. Only | |
62 | applies to EXPR_VARIABLE nodes. | |
63 | Also used by gfc_conv_array_parameter. When set this indicates a pointer | |
64 | to the descriptor should be returned, rather than the descriptor itself. | |
65 | */ | |
66 | unsigned want_pointer:1; | |
67 | ||
68 | /* An array function call returning without a temporary. Also used for array | |
69 | pointer assignments. */ | |
70 | unsigned direct_byref:1; | |
71 | ||
99d821c0 DK |
72 | /* If direct_byref is set, do work out the descriptor as in that case but |
73 | do still create a new descriptor variable instead of using an | |
74 | existing one. This is useful for special pointer assignments like | |
75 | rank remapping where we have to process the descriptor before | |
76 | assigning to final one. */ | |
77 | unsigned byref_noassign:1; | |
78 | ||
6de9cd9a DN |
79 | /* Ignore absent optional arguments. Used for some intrinsics. */ |
80 | unsigned ignore_optional:1; | |
81 | ||
ad5dd90d PT |
82 | /* When this is set the data and offset fields of the returned descriptor |
83 | are NULL. Used by intrinsic size. */ | |
84 | unsigned data_not_needed:1; | |
85 | ||
713485cc | 86 | /* If set, gfc_conv_procedure_call does not put byref calls into se->pre. */ |
0ee8e250 PT |
87 | unsigned no_function_call:1; |
88 | ||
0b4f2770 MM |
89 | /* If set, we will force the creation of a temporary. Useful to disable |
90 | non-copying procedure argument passing optimizations, when some function | |
91 | args alias. */ | |
92 | unsigned force_tmp:1; | |
93 | ||
1cf43a1d PT |
94 | /* Unconditionally calculate offset for array segments and constant |
95 | arrays in gfc_conv_expr_descriptor. */ | |
96 | unsigned use_offset:1; | |
97 | ||
23c3d0f9 MM |
98 | unsigned want_coarray:1; |
99 | ||
6de9cd9a DN |
100 | /* Scalarization parameters. */ |
101 | struct gfc_se *parent; | |
102 | struct gfc_ss *ss; | |
103 | struct gfc_loopinfo *loop; | |
104 | } | |
105 | gfc_se; | |
106 | ||
107 | ||
ea6363a3 DC |
108 | /* Denotes different types of coarray. |
109 | Please keep in sync with libgfortran/caf/libcaf.h. */ | |
ba85c8c3 | 110 | enum gfc_coarray_regtype |
ea6363a3 DC |
111 | { |
112 | GFC_CAF_COARRAY_STATIC, | |
113 | GFC_CAF_COARRAY_ALLOC, | |
bc0229f9 TB |
114 | GFC_CAF_LOCK_STATIC, |
115 | GFC_CAF_LOCK_ALLOC, | |
5df445a2 TB |
116 | GFC_CAF_CRITICAL, |
117 | GFC_CAF_EVENT_STATIC, | |
ba85c8c3 AV |
118 | GFC_CAF_EVENT_ALLOC, |
119 | GFC_CAF_COARRAY_ALLOC_REGISTER_ONLY, | |
120 | GFC_CAF_COARRAY_ALLOC_ALLOCATE_ONLY | |
121 | }; | |
122 | ||
123 | ||
124 | /* Describes the action to take on _caf_deregister. Keep in sync with | |
125 | gcc/fortran/trans.h. The negative values are not valid for the library and | |
126 | are used by the drivers for building the correct call. */ | |
127 | enum gfc_coarray_deregtype { | |
128 | /* This is no coarray, i.e. build a call to a free (). */ | |
129 | GFC_CAF_COARRAY_NOCOARRAY = -2, | |
130 | /* The driver is to analyze which _caf_deregister ()-call to generate. */ | |
131 | GFC_CAF_COARRAY_ANALYZE = -1, | |
132 | GFC_CAF_COARRAY_DEREGISTER = 0, | |
133 | GFC_CAF_COARRAY_DEALLOCATE_ONLY | |
a79683d5 | 134 | }; |
ea6363a3 DC |
135 | |
136 | ||
3c9f5092 AV |
137 | /* Specify the type of ref handed to the caf communication functions. |
138 | Please keep in sync with libgfortran/caf/libcaf.h. */ | |
139 | enum gfc_caf_ref_type_t { | |
140 | GFC_CAF_REF_COMPONENT, | |
141 | GFC_CAF_REF_ARRAY, | |
142 | GFC_CAF_REF_STATIC_ARRAY | |
143 | }; | |
144 | ||
145 | ||
146 | /* Give the reference type of an array ref. | |
147 | Please keep in sync with libgfortran/caf/libcaf.h. */ | |
148 | enum gfc_caf_array_ref_t { | |
149 | GFC_CAF_ARR_REF_NONE = 0, | |
150 | GFC_CAF_ARR_REF_VECTOR, | |
151 | GFC_CAF_ARR_REF_FULL, | |
152 | GFC_CAF_ARR_REF_RANGE, | |
153 | GFC_CAF_ARR_REF_SINGLE, | |
154 | GFC_CAF_ARR_REF_OPEN_END, | |
155 | GFC_CAF_ARR_REF_OPEN_START | |
156 | }; | |
157 | ||
ba85c8c3 AV |
158 | |
159 | /* trans-array (structure_alloc_comps) caf_mode bits. */ | |
160 | enum gfc_structure_caf_mode_t { | |
161 | GFC_STRUCTURE_CAF_MODE_ENABLE_COARRAY = 1 << 0, | |
162 | GFC_STRUCTURE_CAF_MODE_IN_COARRAY = 1 << 1, | |
163 | GFC_STRUCTURE_CAF_MODE_DEALLOC_ONLY = 1 << 2 | |
164 | }; | |
165 | ||
166 | ||
62732c30 | 167 | /* The array-specific scalarization information. The array members of |
6d63e468 | 168 | this struct are indexed by actual array index, and thus can be sparse. */ |
6de9cd9a | 169 | |
6d63e468 | 170 | typedef struct gfc_array_info |
6de9cd9a | 171 | { |
08dcec61 MM |
172 | mpz_t *shape; |
173 | ||
6de9cd9a DN |
174 | /* The ref that holds information on this section. */ |
175 | gfc_ref *ref; | |
176 | /* The descriptor of this array. */ | |
177 | tree descriptor; | |
178 | /* holds the pointer to the data array. */ | |
179 | tree data; | |
180 | /* To move some of the array index calculation out of the innermost loop. */ | |
181 | tree offset; | |
182 | tree saved_offset; | |
183 | tree stride0; | |
184 | /* Holds the SS for a subscript. Indexed by actual dimension. */ | |
185 | struct gfc_ss *subscript[GFC_MAX_DIMENSIONS]; | |
186 | ||
187 | /* stride and delta are used to access this inside a scalarization loop. | |
188 | start is used in the calculation of these. Indexed by scalarizer | |
189 | dimension. */ | |
190 | tree start[GFC_MAX_DIMENSIONS]; | |
8424e0d8 | 191 | tree end[GFC_MAX_DIMENSIONS]; |
6de9cd9a DN |
192 | tree stride[GFC_MAX_DIMENSIONS]; |
193 | tree delta[GFC_MAX_DIMENSIONS]; | |
6de9cd9a | 194 | } |
6d63e468 | 195 | gfc_array_info; |
6de9cd9a | 196 | |
a79683d5 | 197 | enum gfc_ss_type |
6de9cd9a DN |
198 | { |
199 | /* A scalar value. This will be evaluated before entering the | |
200 | scalarization loop. */ | |
201 | GFC_SS_SCALAR, | |
202 | ||
991b4da1 | 203 | /* Like GFC_SS_SCALAR it evaluates the expression outside the |
0192ef20 MM |
204 | loop. Is always evaluated as a reference to the temporary, unless |
205 | temporary evaluation can result in a NULL pointer dereferencing (case of | |
206 | optional arguments). Used for elemental function arguments. */ | |
6de9cd9a DN |
207 | GFC_SS_REFERENCE, |
208 | ||
209 | /* An array section. Scalarization indices will be substituted during | |
210 | expression translation. */ | |
211 | GFC_SS_SECTION, | |
212 | ||
213 | /* A non-elemental function call returning an array. The call is executed | |
214 | before entering the scalarization loop, storing the result in a | |
215 | temporary. This temporary is then used inside the scalarization loop. | |
df2fba9e | 216 | Simple assignments, e.g. a(:) = fn(), are handled without a temporary |
6de9cd9a DN |
217 | as a special case. */ |
218 | GFC_SS_FUNCTION, | |
219 | ||
220 | /* An array constructor. The current implementation is sub-optimal in | |
221 | many cases. It allocated a temporary, assigns the values to it, then | |
222 | uses this temporary inside the scalarization loop. */ | |
223 | GFC_SS_CONSTRUCTOR, | |
224 | ||
7a70c12d RS |
225 | /* A vector subscript. The vector's descriptor is cached in the |
226 | "descriptor" field of the associated gfc_ss_info. */ | |
6de9cd9a DN |
227 | GFC_SS_VECTOR, |
228 | ||
229 | /* A temporary array allocated by the scalarizer. Its rank can be less | |
230 | than that of the assignment expression. */ | |
231 | GFC_SS_TEMP, | |
232 | ||
233 | /* An intrinsic function call. Many intrinsic functions which map directly | |
234 | to library calls are created as GFC_SS_FUNCTION nodes. */ | |
e9cfef64 | 235 | GFC_SS_INTRINSIC, |
1cf43a1d | 236 | |
e9cfef64 PB |
237 | /* A component of a derived type. */ |
238 | GFC_SS_COMPONENT | |
a79683d5 | 239 | }; |
6de9cd9a | 240 | |
6d63e468 | 241 | |
bcc4d4e0 MM |
242 | typedef struct gfc_ss_info |
243 | { | |
c7bf4f1e | 244 | int refcount; |
bcc4d4e0 | 245 | gfc_ss_type type; |
f98cfd3c | 246 | gfc_expr *expr; |
a0add3be | 247 | tree string_length; |
99dd5a29 MM |
248 | |
249 | union | |
250 | { | |
251 | /* If type is GFC_SS_SCALAR or GFC_SS_REFERENCE. */ | |
252 | struct | |
253 | { | |
14aeb3cd MM |
254 | /* If the scalar is passed as actual argument to an (elemental) procedure, |
255 | this is the symbol of the corresponding dummy argument. */ | |
256 | gfc_symbol *dummy_arg; | |
99dd5a29 | 257 | tree value; |
711d7c23 MM |
258 | /* Tells that the scalar is a reference to a variable that might |
259 | be present on the lhs, so that we should evaluate the value | |
260 | itself before the loop, not just the reference. */ | |
261 | unsigned needs_temporary:1; | |
99dd5a29 MM |
262 | } |
263 | scalar; | |
961e73ac MM |
264 | |
265 | /* GFC_SS_TEMP. */ | |
266 | struct | |
267 | { | |
268 | tree type; | |
269 | } | |
270 | temp; | |
1838afec MM |
271 | |
272 | /* All other types. */ | |
273 | gfc_array_info array; | |
99dd5a29 MM |
274 | } |
275 | data; | |
7a412892 MM |
276 | |
277 | /* This is used by assignments requiring temporaries. The bits specify which | |
278 | loops the terms appear in. This will be 1 for the RHS expressions, | |
279 | 2 for the LHS expressions, and 3(=1|2) for the temporary. */ | |
280 | unsigned useflags:2; | |
42d0058e MM |
281 | |
282 | /* Suppresses precalculation of scalars in WHERE assignments. */ | |
283 | unsigned where:1; | |
9bcf7121 | 284 | |
30c931de PT |
285 | /* This set for an elemental function that contains expressions for |
286 | external arrays, thereby triggering creation of a temporary. */ | |
287 | unsigned array_outer_dependency:1; | |
288 | ||
9bcf7121 MM |
289 | /* Tells whether the SS is for an actual argument which can be a NULL |
290 | reference. In other words, the associated dummy argument is OPTIONAL. | |
291 | Used to handle elemental procedures. */ | |
292 | bool can_be_null_ref; | |
bcc4d4e0 MM |
293 | } |
294 | gfc_ss_info; | |
295 | ||
296 | #define gfc_get_ss_info() XCNEW (gfc_ss_info) | |
297 | ||
298 | ||
6d63e468 MM |
299 | /* Scalarization State chain. Created by walking an expression tree before |
300 | creating the scalarization loops. Then passed as part of a gfc_se structure | |
301 | to translate the expression inside the loop. Note that these chains are | |
302 | terminated by gfc_ss_terminator, not NULL. A NULL pointer in a gfc_se | |
303 | indicates to gfc_conv_* that this is a scalar expression. | |
304 | SS structures can only belong to a single loopinfo. They must be added | |
6de9cd9a | 305 | otherwise they will not get freed. */ |
6d63e468 | 306 | |
6de9cd9a DN |
307 | typedef struct gfc_ss |
308 | { | |
bcc4d4e0 MM |
309 | gfc_ss_info *info; |
310 | ||
cb4b9eae MM |
311 | int dimen; |
312 | /* Translation from loop dimensions to actual array dimensions. | |
313 | actual_dim = dim[loop_dim] */ | |
314 | int dim[GFC_MAX_DIMENSIONS]; | |
315 | ||
6de9cd9a DN |
316 | /* All the SS in a loop and linked through loop_chain. The SS for an |
317 | expression are linked by the next pointer. */ | |
318 | struct gfc_ss *loop_chain; | |
319 | struct gfc_ss *next; | |
320 | ||
2eace29a MM |
321 | /* Non-null if the ss is part of a nested loop. */ |
322 | struct gfc_ss *parent; | |
323 | ||
4d6a0e36 MM |
324 | /* If the evaluation of an expression requires a nested loop (for example |
325 | if the sum intrinsic is evaluated inline), this points to the nested | |
326 | loop's gfc_ss. */ | |
327 | struct gfc_ss *nested_ss; | |
328 | ||
4615abe8 MM |
329 | /* The loop this gfc_ss is in. */ |
330 | struct gfc_loopinfo *loop; | |
331 | ||
42d0058e | 332 | unsigned is_alloc_lhs:1; |
6de9cd9a DN |
333 | } |
334 | gfc_ss; | |
ece3f663 | 335 | #define gfc_get_ss() XCNEW (gfc_ss) |
6de9cd9a | 336 | |
1f2959f0 | 337 | /* The contents of this aren't actually used. A NULL SS chain indicates a |
6de9cd9a DN |
338 | scalar expression, so this pointer is used to terminate SS chains. */ |
339 | extern gfc_ss * const gfc_ss_terminator; | |
340 | ||
341 | /* Holds information about an expression while it is being scalarized. */ | |
342 | typedef struct gfc_loopinfo | |
343 | { | |
344 | stmtblock_t pre; | |
345 | stmtblock_t post; | |
346 | ||
c6d741b8 | 347 | int dimen; |
6de9cd9a DN |
348 | |
349 | /* All the SS involved with this loop. */ | |
350 | gfc_ss *ss; | |
e7dc5b4f | 351 | /* The SS describing the temporary used in an assignment. */ |
6de9cd9a DN |
352 | gfc_ss *temp_ss; |
353 | ||
4616ef9b MM |
354 | /* Non-null if this loop is nested in another one. */ |
355 | struct gfc_loopinfo *parent; | |
356 | ||
9d758043 MM |
357 | /* Chain of nested loops. */ |
358 | struct gfc_loopinfo *nested, *next; | |
359 | ||
6de9cd9a DN |
360 | /* The scalarization loop index variables. */ |
361 | tree loopvar[GFC_MAX_DIMENSIONS]; | |
362 | ||
363 | /* The bounds of the scalarization loops. */ | |
364 | tree from[GFC_MAX_DIMENSIONS]; | |
365 | tree to[GFC_MAX_DIMENSIONS]; | |
366 | gfc_ss *specloop[GFC_MAX_DIMENSIONS]; | |
367 | ||
368 | /* The code member contains the code for the body of the next outer loop. */ | |
369 | stmtblock_t code[GFC_MAX_DIMENSIONS]; | |
370 | ||
371 | /* Order in which the dimensions should be looped, innermost first. */ | |
372 | int order[GFC_MAX_DIMENSIONS]; | |
373 | ||
3d03ead0 PT |
374 | /* Enum to control loop reversal. */ |
375 | gfc_reverse reverse[GFC_MAX_DIMENSIONS]; | |
376 | ||
6de9cd9a DN |
377 | /* The number of dimensions for which a temporary is used. */ |
378 | int temp_dim; | |
379 | ||
380 | /* If set we don't need the loop variables. */ | |
381 | unsigned array_parameter:1; | |
382 | } | |
383 | gfc_loopinfo; | |
384 | ||
0c08de8f | 385 | #define gfc_get_loopinfo() XCNEW (gfc_loopinfo) |
7b5b57b7 PB |
386 | |
387 | /* Information about a symbol that has been shadowed by a temporary. */ | |
388 | typedef struct | |
389 | { | |
390 | symbol_attribute attr; | |
391 | tree decl; | |
392 | } | |
393 | gfc_saved_var; | |
394 | ||
395 | ||
0019d498 DK |
396 | /* Store information about a block of code together with special |
397 | initialization and clean-up code. This can be used to incrementally add | |
398 | init and cleanup, and in the end put everything together to a | |
399 | try-finally expression. */ | |
400 | typedef struct | |
401 | { | |
402 | tree init; | |
403 | tree cleanup; | |
404 | tree code; | |
405 | } | |
406 | gfc_wrapped_block; | |
407 | ||
c49ea23d | 408 | /* Class API functions. */ |
34d9d749 | 409 | tree gfc_class_set_static_fields (tree, tree, tree); |
c49ea23d PT |
410 | tree gfc_class_data_get (tree); |
411 | tree gfc_class_vptr_get (tree); | |
5b384b3d | 412 | tree gfc_class_len_get (tree); |
728557fd | 413 | tree gfc_class_len_or_zero_get (tree); |
34d9d749 AV |
414 | gfc_expr * gfc_find_and_cut_at_last_class_ref (gfc_expr *); |
415 | /* Get an accessor to the class' vtab's * field, when a class handle is | |
416 | available. */ | |
417 | tree gfc_class_vtab_hash_get (tree); | |
418 | tree gfc_class_vtab_size_get (tree); | |
419 | tree gfc_class_vtab_extends_get (tree); | |
420 | tree gfc_class_vtab_def_init_get (tree); | |
421 | tree gfc_class_vtab_copy_get (tree); | |
422 | tree gfc_class_vtab_final_get (tree); | |
423 | /* Get an accessor to the vtab's * field, when a vptr handle is present. */ | |
424 | tree gfc_vtpr_hash_get (tree); | |
425 | tree gfc_vptr_size_get (tree); | |
426 | tree gfc_vptr_extends_get (tree); | |
427 | tree gfc_vptr_def_init_get (tree); | |
428 | tree gfc_vptr_copy_get (tree); | |
429 | tree gfc_vptr_final_get (tree); | |
bf9f15ee | 430 | tree gfc_vptr_deallocate_get (tree); |
4fb5478c | 431 | void gfc_reset_vptr (stmtblock_t *, gfc_expr *); |
34d9d749 | 432 | void gfc_reset_len (stmtblock_t *, gfc_expr *); |
8f75db9f | 433 | tree gfc_get_vptr_from_expr (tree); |
b8ac4f3b | 434 | tree gfc_get_class_array_ref (tree, tree, tree); |
34d9d749 | 435 | tree gfc_copy_class_to_class (tree, tree, tree, bool); |
ef292537 | 436 | bool gfc_add_finalizer_call (stmtblock_t *, gfc_expr *); |
895a0c2d TB |
437 | bool gfc_add_comp_finalizer_call (stmtblock_t *, tree, gfc_component *, bool); |
438 | ||
16e82b25 TB |
439 | void gfc_conv_derived_to_class (gfc_se *, gfc_expr *, gfc_typespec, tree, bool, |
440 | bool); | |
441 | void gfc_conv_class_to_class (gfc_se *, gfc_expr *, gfc_typespec, bool, bool, | |
442 | bool, bool); | |
0019d498 DK |
443 | |
444 | /* Initialize an init/cleanup block. */ | |
445 | void gfc_start_wrapped_block (gfc_wrapped_block* block, tree code); | |
446 | /* Add a pair of init/cleanup code to the block. Each one might be a | |
447 | NULL_TREE if not required. */ | |
448 | void gfc_add_init_cleanup (gfc_wrapped_block* block, tree init, tree cleanup); | |
449 | /* Finalize the block, that is, create a single expression encapsulating the | |
450 | original code together with init and clean-up code. */ | |
451 | tree gfc_finish_wrapped_block (gfc_wrapped_block* block); | |
452 | ||
453 | ||
6de9cd9a DN |
454 | /* Advance the SS chain to the next term. */ |
455 | void gfc_advance_se_ss_chain (gfc_se *); | |
456 | ||
aa9c57ec KH |
457 | /* Call this to initialize a gfc_se structure before use |
458 | first parameter is structure to initialize, second is | |
6de9cd9a DN |
459 | parent to get scalarization data from, or NULL. */ |
460 | void gfc_init_se (gfc_se *, gfc_se *); | |
461 | ||
462 | /* Create an artificial variable decl and add it to the current scope. */ | |
463 | tree gfc_create_var (tree, const char *); | |
464 | /* Like above but doesn't add it to the current scope. */ | |
465 | tree gfc_create_var_np (tree, const char *); | |
466 | ||
467 | /* Store the result of an expression in a temp variable so it can be used | |
468 | repeatedly even if the original changes */ | |
469 | void gfc_make_safe_expr (gfc_se * se); | |
470 | ||
471 | /* Makes sure se is suitable for passing as a function string parameter. */ | |
472 | void gfc_conv_string_parameter (gfc_se * se); | |
473 | ||
0a821a92 | 474 | /* Compare two strings. */ |
23b10420 | 475 | tree gfc_build_compare_string (tree, tree, tree, tree, int, enum tree_code); |
0a821a92 | 476 | |
13795658 | 477 | /* When using the gfc_conv_* make sure you understand what they do, i.e. |
69de3b83 | 478 | when a POST chain may be created, and what the returned expression may be |
6de9cd9a DN |
479 | used for. Note that character strings have special handling. This |
480 | should not be a problem as most statements/operations only deal with | |
a4f5cd44 PB |
481 | numeric/logical types. See the implementations in trans-expr.c |
482 | for details of the individual functions. */ | |
6de9cd9a | 483 | |
6de9cd9a | 484 | void gfc_conv_expr (gfc_se * se, gfc_expr * expr); |
6de9cd9a | 485 | void gfc_conv_expr_val (gfc_se * se, gfc_expr * expr); |
6de9cd9a | 486 | void gfc_conv_expr_lhs (gfc_se * se, gfc_expr * expr); |
6de9cd9a | 487 | void gfc_conv_expr_reference (gfc_se * se, gfc_expr *); |
6de9cd9a | 488 | void gfc_conv_expr_type (gfc_se * se, gfc_expr *, tree); |
a4f5cd44 | 489 | |
429cb994 | 490 | |
e032c2a1 | 491 | /* trans-expr.c */ |
3c9f5092 AV |
492 | tree gfc_conv_scalar_to_descriptor (gfc_se *, tree, symbol_attribute); |
493 | tree gfc_get_ultimate_alloc_ptr_comps_caf_token (gfc_se *, gfc_expr *); | |
e032c2a1 | 494 | void gfc_conv_scalar_char_value (gfc_symbol *sym, gfc_se *se, gfc_expr **expr); |
d2886bc7 | 495 | tree gfc_string_to_single_character (tree len, tree str, int kind); |
b5116268 | 496 | tree gfc_get_tree_for_caf_expr (gfc_expr *); |
3c9f5092 | 497 | void gfc_get_caf_token_offset (gfc_se*, tree *, tree *, tree, tree, gfc_expr *); |
2c69df3b | 498 | tree gfc_caf_get_image_index (stmtblock_t *, gfc_expr *, tree); |
e032c2a1 | 499 | |
ce2df7c6 FW |
500 | /* Find the decl containing the auxiliary variables for assigned variables. */ |
501 | void gfc_conv_label_variable (gfc_se * se, gfc_expr * expr); | |
6de9cd9a | 502 | /* If the value is not constant, Create a temporary and copy the value. */ |
55bd9c35 | 503 | tree gfc_evaluate_now_loc (location_t, tree, stmtblock_t *); |
6de9cd9a DN |
504 | tree gfc_evaluate_now (tree, stmtblock_t *); |
505 | ||
166d08bd FXC |
506 | /* Find the appropriate variant of a math intrinsic. */ |
507 | tree gfc_builtin_decl_for_float_kind (enum built_in_function, int); | |
508 | ||
2b3dc0db PT |
509 | tree size_of_string_in_bytes (int, tree); |
510 | ||
da661a58 TB |
511 | /* Intrinsic procedure handling. */ |
512 | tree gfc_conv_intrinsic_subroutine (gfc_code *); | |
6de9cd9a | 513 | void gfc_conv_intrinsic_function (gfc_se *, gfc_expr *); |
3b7ea188 FXC |
514 | bool gfc_conv_ieee_arithmetic_function (gfc_se *, gfc_expr *); |
515 | tree gfc_save_fp_state (stmtblock_t *); | |
516 | void gfc_restore_fp_state (stmtblock_t *, tree); | |
517 | ||
711d7c23 | 518 | bool gfc_expr_is_variable (gfc_expr *); |
6de9cd9a | 519 | |
712efae1 MM |
520 | /* Does an intrinsic map directly to an external library call |
521 | This is true for array-returning intrinsics, unless | |
522 | gfc_inline_intrinsic_function_p returns true. */ | |
6de9cd9a | 523 | int gfc_is_intrinsic_libcall (gfc_expr *); |
b2a5eb75 | 524 | |
713485cc JW |
525 | /* Used to call ordinary functions/subroutines |
526 | and procedure pointer components. */ | |
527 | int gfc_conv_procedure_call (gfc_se *, gfc_symbol *, gfc_actual_arglist *, | |
9771b263 | 528 | gfc_expr *, vec<tree, va_gc> *); |
d4feb3d3 | 529 | |
430f2d1f | 530 | void gfc_conv_subref_array_arg (gfc_se *, gfc_expr *, int, sym_intent, bool); |
d4feb3d3 | 531 | |
6de9cd9a | 532 | /* Generate code for a scalar assignment. */ |
ba85c8c3 AV |
533 | tree gfc_trans_scalar_assign (gfc_se *, gfc_se *, gfc_typespec, bool, bool, |
534 | bool c = false); | |
6de9cd9a DN |
535 | |
536 | /* Translate COMMON blocks. */ | |
537 | void gfc_trans_common (gfc_namespace *); | |
538 | ||
f7b529fa | 539 | /* Translate a derived type constructor. */ |
6de9cd9a DN |
540 | void gfc_conv_structure (gfc_se *, gfc_expr *, int); |
541 | ||
542 | /* Return an expression which determines if a dummy parameter is present. */ | |
543 | tree gfc_conv_expr_present (gfc_symbol *); | |
e15e9be3 | 544 | /* Convert a missing, dummy argument into a null or zero. */ |
be9c3c6e | 545 | void gfc_conv_missing_dummy (gfc_se *, gfc_expr *, gfc_typespec, int); |
6de9cd9a DN |
546 | |
547 | /* Generate code to allocate a string temporary. */ | |
548 | tree gfc_conv_string_tmp (gfc_se *, tree, tree); | |
ca2940c3 TS |
549 | /* Get the string length variable belonging to an expression. */ |
550 | tree gfc_get_expr_charlen (gfc_expr *); | |
6de9cd9a | 551 | /* Initialize a string length variable. */ |
4b7f8314 | 552 | void gfc_conv_string_length (gfc_charlen *, gfc_expr *, stmtblock_t *); |
417ab240 JJ |
553 | /* Ensure type sizes can be gimplified. */ |
554 | void gfc_trans_vla_type_sizes (gfc_symbol *, stmtblock_t *); | |
6de9cd9a DN |
555 | |
556 | /* Add an expression to the end of a block. */ | |
557 | void gfc_add_expr_to_block (stmtblock_t *, tree); | |
46b2c440 MM |
558 | /* Add an expression to the beginning of a block. */ |
559 | void gfc_prepend_expr_to_block (stmtblock_t *, tree); | |
6de9cd9a DN |
560 | /* Add a block to the end of a block. */ |
561 | void gfc_add_block_to_block (stmtblock_t *, stmtblock_t *); | |
726a989a | 562 | /* Add a MODIFY_EXPR to a block. */ |
55bd9c35 | 563 | void gfc_add_modify_loc (location_t, stmtblock_t *, tree, tree); |
726a989a | 564 | void gfc_add_modify (stmtblock_t *, tree, tree); |
6de9cd9a DN |
565 | |
566 | /* Initialize a statement block. */ | |
567 | void gfc_init_block (stmtblock_t *); | |
69de3b83 | 568 | /* Start a new statement block. Like gfc_init_block but also starts a new |
6de9cd9a DN |
569 | variable scope. */ |
570 | void gfc_start_block (stmtblock_t *); | |
571 | /* Finish a statement block. Also closes the scope if the block was created | |
572 | with gfc_start_block. */ | |
573 | tree gfc_finish_block (stmtblock_t *); | |
574 | /* Merge the scope of a block with its parent. */ | |
575 | void gfc_merge_block_scope (stmtblock_t * block); | |
576 | ||
577 | /* Return the backend label decl. */ | |
578 | tree gfc_get_label_decl (gfc_st_label *); | |
579 | ||
580 | /* Return the decl for an external function. */ | |
581 | tree gfc_get_extern_function_decl (gfc_symbol *); | |
582 | ||
583 | /* Return the decl for a function. */ | |
584 | tree gfc_get_function_decl (gfc_symbol *); | |
585 | ||
6de9cd9a DN |
586 | /* Build an ADDR_EXPR. */ |
587 | tree gfc_build_addr_expr (tree, tree); | |
588 | ||
6de9cd9a | 589 | /* Build an ARRAY_REF. */ |
f3b0bb7a | 590 | tree gfc_build_array_ref (tree, tree, tree, tree vptr = NULL_TREE); |
6de9cd9a | 591 | |
49de9e73 | 592 | /* Creates a label. Decl is artificial if label_id == NULL_TREE. */ |
6de9cd9a DN |
593 | tree gfc_build_label_decl (tree); |
594 | ||
595 | /* Return the decl used to hold the function return value. | |
596 | Do not use if the function has an explicit result variable. */ | |
5f20c93a | 597 | tree gfc_get_fake_result_decl (gfc_symbol *, int); |
6de9cd9a | 598 | |
6de9cd9a DN |
599 | /* Add a decl to the binding level for the current function. */ |
600 | void gfc_add_decl_to_function (tree); | |
601 | ||
602 | /* Make prototypes for runtime library functions. */ | |
603 | void gfc_build_builtin_function_decls (void); | |
604 | ||
c8cc8542 PB |
605 | /* Set the backend source location of a decl. */ |
606 | void gfc_set_decl_location (tree, locus *); | |
607 | ||
0101807c PT |
608 | /* Get a module symbol backend_decl if possible. */ |
609 | bool gfc_get_module_backend_decl (gfc_symbol *); | |
610 | ||
6de9cd9a DN |
611 | /* Return the variable decl for a symbol. */ |
612 | tree gfc_get_symbol_decl (gfc_symbol *); | |
613 | ||
597073ac | 614 | /* Build a static initializer. */ |
1d0134b3 | 615 | tree gfc_conv_initializer (gfc_expr *, gfc_typespec *, tree, bool, bool, bool); |
597073ac | 616 | |
f40eccb0 | 617 | /* Assign a default initializer to a derived type. */ |
0019d498 | 618 | void gfc_init_default_dt (gfc_symbol *, stmtblock_t *, bool); |
f40eccb0 | 619 | |
7b5b57b7 PB |
620 | /* Substitute a temporary variable in place of the real one. */ |
621 | void gfc_shadow_sym (gfc_symbol *, tree, gfc_saved_var *); | |
622 | ||
623 | /* Restore the original variable. */ | |
624 | void gfc_restore_sym (gfc_symbol *, gfc_saved_var *); | |
625 | ||
43ce5e52 FXC |
626 | /* Setting a decl assembler name, mangling it according to target rules |
627 | (like Windows @NN decorations). */ | |
628 | void gfc_set_decl_assembler_name (tree, tree); | |
629 | ||
bae88af6 TS |
630 | /* Returns true if a variable of specified size should go on the stack. */ |
631 | int gfc_can_put_var_on_stack (tree); | |
632 | ||
92d28cbb JJ |
633 | /* Set GFC_DECL_SCALAR_* on decl from sym if needed. */ |
634 | void gfc_finish_decl_attrs (tree, symbol_attribute *); | |
635 | ||
69de3b83 | 636 | /* Allocate the lang-specific part of a decl node. */ |
6de9cd9a DN |
637 | void gfc_allocate_lang_decl (tree); |
638 | ||
639 | /* Advance along a TREE_CHAIN. */ | |
640 | tree gfc_advance_chain (tree, int); | |
641 | ||
642 | /* Create a decl for a function. */ | |
fb55ca75 | 643 | void gfc_create_function_decl (gfc_namespace *, bool); |
6de9cd9a DN |
644 | /* Generate the code for a function. */ |
645 | void gfc_generate_function_code (gfc_namespace *); | |
0de4325e TS |
646 | /* Output a BLOCK DATA program unit. */ |
647 | void gfc_generate_block_data (gfc_namespace *); | |
6de9cd9a DN |
648 | /* Output a decl for a module variable. */ |
649 | void gfc_generate_module_vars (gfc_namespace *); | |
d74d8807 DK |
650 | /* Get the appropriate return statement for a procedure. */ |
651 | tree gfc_generate_return (void); | |
6de9cd9a | 652 | |
ca752f39 | 653 | struct module_decl_hasher : ggc_ptr_hash<tree_node> |
2a22f99c TS |
654 | { |
655 | typedef const char *compare_type; | |
656 | ||
657 | static hashval_t hash (tree); | |
658 | static bool equal (tree, const char *); | |
659 | }; | |
660 | ||
661 | struct GTY((for_user)) module_htab_entry { | |
a64f5186 JJ |
662 | const char *name; |
663 | tree namespace_decl; | |
2a22f99c | 664 | hash_table<module_decl_hasher> *GTY (()) decls; |
a64f5186 JJ |
665 | }; |
666 | ||
667 | struct module_htab_entry *gfc_find_module (const char *); | |
668 | void gfc_module_add_decl (struct module_htab_entry *, tree); | |
669 | ||
6de9cd9a | 670 | /* Get and set the current location. */ |
363aab21 | 671 | void gfc_save_backend_locus (locus *); |
6de9cd9a | 672 | void gfc_set_backend_locus (locus *); |
363aab21 | 673 | void gfc_restore_backend_locus (locus *); |
6de9cd9a DN |
674 | |
675 | /* Handle static constructor functions. */ | |
676 | extern GTY(()) tree gfc_static_ctors; | |
677 | void gfc_generate_constructors (void); | |
678 | ||
636da744 | 679 | /* Get the string length of an array constructor. */ |
b7e75771 | 680 | bool get_array_ctor_strlen (stmtblock_t *, gfc_constructor_base, tree *); |
636da744 | 681 | |
4f13e17f | 682 | /* Mark a condition as likely or unlikely. */ |
ed9c79e1 JJ |
683 | tree gfc_likely (tree, enum br_predictor); |
684 | tree gfc_unlikely (tree, enum br_predictor); | |
5af07930 | 685 | |
2b3dc0db PT |
686 | /* Return the string length of a deferred character length component. */ |
687 | bool gfc_deferred_strlen (gfc_component *, tree *); | |
688 | ||
f25a62a5 DK |
689 | /* Generate a runtime error call. */ |
690 | tree gfc_trans_runtime_error (bool, locus*, const char*, ...); | |
f25a62a5 | 691 | |
0d52899f TB |
692 | /* Generate a runtime warning/error check. */ |
693 | void gfc_trans_runtime_check (bool, bool, tree, stmtblock_t *, locus *, | |
694 | const char *, ...); | |
6de9cd9a | 695 | |
fb5bc08b DK |
696 | /* Generate a runtime check for same string length. */ |
697 | void gfc_trans_same_strlen_check (const char*, locus*, tree, tree, | |
698 | stmtblock_t*); | |
699 | ||
cd55d18e | 700 | /* Generate a call to free(). */ |
1529b8d9 FXC |
701 | tree gfc_call_free (tree); |
702 | ||
703 | /* Allocate memory after performing a few checks. */ | |
704 | tree gfc_call_malloc (stmtblock_t *, tree, tree); | |
705 | ||
12f681a0 DK |
706 | /* Build a memcpy call. */ |
707 | tree gfc_build_memcpy_call (tree, tree, tree); | |
708 | ||
ba85c8c3 AV |
709 | /* Register memory with the coarray library. */ |
710 | void gfc_allocate_using_caf_lib (stmtblock_t *, tree, tree, tree, tree, tree, | |
711 | tree, gfc_coarray_regtype); | |
712 | ||
ea6363a3 | 713 | /* Allocate memory for allocatable variables, with optional status variable. */ |
5d81ddd0 | 714 | void gfc_allocate_allocatable (stmtblock_t*, tree, tree, tree, tree, |
3c9f5092 | 715 | tree, tree, tree, gfc_expr*, int); |
4376b7cf FXC |
716 | |
717 | /* Allocate memory, with optional status variable. */ | |
4f13e17f | 718 | void gfc_allocate_using_malloc (stmtblock_t *, tree, tree, tree); |
4376b7cf FXC |
719 | |
720 | /* Generate code to deallocate an array. */ | |
5d81ddd0 | 721 | tree gfc_deallocate_with_status (tree, tree, tree, tree, tree, bool, |
ba85c8c3 AV |
722 | gfc_expr *, int); |
723 | tree gfc_deallocate_scalar_with_status (tree, tree, tree, bool, gfc_expr*, | |
724 | gfc_typespec, bool c = false); | |
4376b7cf FXC |
725 | |
726 | /* Generate code to call realloc(). */ | |
727 | tree gfc_call_realloc (stmtblock_t *, tree, tree); | |
728 | ||
c16126ac | 729 | /* Assign a derived type constructor to a variable. */ |
ba85c8c3 | 730 | tree gfc_trans_structure_assign (tree, gfc_expr *, bool, bool c = false); |
c16126ac | 731 | |
1f2959f0 | 732 | /* Generate code for an assignment, includes scalarization. */ |
574284e9 AV |
733 | tree gfc_trans_assignment (gfc_expr *, gfc_expr *, bool, bool, bool p = false, |
734 | bool a = true); | |
6de9cd9a | 735 | |
49de9e73 | 736 | /* Generate code for a pointer assignment. */ |
6de9cd9a DN |
737 | tree gfc_trans_pointer_assignment (gfc_expr *, gfc_expr *); |
738 | ||
739 | /* Initialize function decls for library functions. */ | |
740 | void gfc_build_intrinsic_lib_fndecls (void); | |
741 | /* Create function decls for IO library functions. */ | |
742 | void gfc_build_io_library_fndecls (void); | |
743 | /* Build a function decl for a library function. */ | |
744 | tree gfc_build_library_function_decl (tree, tree, int, ...); | |
3f34855a TB |
745 | tree gfc_build_library_function_decl_with_spec (tree name, const char *spec, |
746 | tree rettype, int nargs, ...); | |
6de9cd9a | 747 | |
9abe5e56 | 748 | /* Process the local variable decls of a block construct. */ |
6312ef45 | 749 | void gfc_process_block_locals (gfc_namespace*); |
9abe5e56 DK |
750 | |
751 | /* Output initialization/clean-up code that was deferred. */ | |
d74d8807 | 752 | void gfc_trans_deferred_vars (gfc_symbol*, gfc_wrapped_block *); |
9abe5e56 | 753 | |
fb55ca75 | 754 | /* In f95-lang.c. */ |
6de9cd9a DN |
755 | tree pushdecl (tree); |
756 | tree pushdecl_top_level (tree); | |
87a60f68 SB |
757 | void pushlevel (void); |
758 | tree poplevel (int, int); | |
6de9cd9a | 759 | tree getdecls (void); |
fb55ca75 TB |
760 | |
761 | /* In trans-types.c. */ | |
fad0afd7 JJ |
762 | struct array_descr_info; |
763 | bool gfc_get_array_descr_info (const_tree, struct array_descr_info *); | |
6de9cd9a | 764 | |
6c7a4dfd | 765 | /* In trans-openmp.c */ |
58f9752a | 766 | bool gfc_omp_privatize_by_reference (const_tree); |
6c7a4dfd | 767 | enum omp_clause_default_kind gfc_omp_predetermined_sharing (tree); |
79943d19 | 768 | tree gfc_omp_report_decl (tree); |
a68ab351 JJ |
769 | tree gfc_omp_clause_default_ctor (tree, tree, tree); |
770 | tree gfc_omp_clause_copy_ctor (tree, tree, tree); | |
771 | tree gfc_omp_clause_assign_op (tree, tree, tree); | |
da6f124d | 772 | tree gfc_omp_clause_linear_ctor (tree, tree, tree, tree); |
a68ab351 | 773 | tree gfc_omp_clause_dtor (tree, tree); |
f014c653 | 774 | void gfc_omp_finish_clause (tree, gimple_seq *); |
b4c3a85b | 775 | bool gfc_omp_scalar_p (tree); |
6c7a4dfd JJ |
776 | bool gfc_omp_disregard_value_expr (tree, bool); |
777 | bool gfc_omp_private_debug_clause (tree, bool); | |
a68ab351 | 778 | bool gfc_omp_private_outer_ref (tree); |
6c7a4dfd JJ |
779 | struct gimplify_omp_ctx; |
780 | void gfc_omp_firstprivatize_type_sizes (struct gimplify_omp_ctx *, tree); | |
781 | ||
6de9cd9a | 782 | /* Runtime library function decls. */ |
6de9cd9a DN |
783 | extern GTY(()) tree gfor_fndecl_pause_numeric; |
784 | extern GTY(()) tree gfor_fndecl_pause_string; | |
785 | extern GTY(()) tree gfor_fndecl_stop_numeric; | |
cea59ace | 786 | extern GTY(()) tree gfor_fndecl_stop_numeric_f08; |
6de9cd9a | 787 | extern GTY(()) tree gfor_fndecl_stop_string; |
6d1b0f92 | 788 | extern GTY(()) tree gfor_fndecl_error_stop_numeric; |
d0a4a61c | 789 | extern GTY(()) tree gfor_fndecl_error_stop_string; |
6de9cd9a | 790 | extern GTY(()) tree gfor_fndecl_runtime_error; |
f96d606f | 791 | extern GTY(()) tree gfor_fndecl_runtime_error_at; |
0d52899f | 792 | extern GTY(()) tree gfor_fndecl_runtime_warning_at; |
1529b8d9 | 793 | extern GTY(()) tree gfor_fndecl_os_error; |
f96d606f | 794 | extern GTY(()) tree gfor_fndecl_generate_error; |
944b8b35 | 795 | extern GTY(()) tree gfor_fndecl_set_fpe; |
68d2e027 | 796 | extern GTY(()) tree gfor_fndecl_set_options; |
25fc05eb | 797 | extern GTY(()) tree gfor_fndecl_ttynam; |
35059811 FXC |
798 | extern GTY(()) tree gfor_fndecl_ctime; |
799 | extern GTY(()) tree gfor_fndecl_fdate; | |
6de9cd9a DN |
800 | extern GTY(()) tree gfor_fndecl_in_pack; |
801 | extern GTY(()) tree gfor_fndecl_in_unpack; | |
802 | extern GTY(()) tree gfor_fndecl_associated; | |
a416c4c7 FXC |
803 | extern GTY(()) tree gfor_fndecl_system_clock4; |
804 | extern GTY(()) tree gfor_fndecl_system_clock8; | |
6de9cd9a | 805 | |
60386f50 TB |
806 | |
807 | /* Coarray run-time library function decls. */ | |
808 | extern GTY(()) tree gfor_fndecl_caf_init; | |
809 | extern GTY(()) tree gfor_fndecl_caf_finalize; | |
a8a5f4a9 TB |
810 | extern GTY(()) tree gfor_fndecl_caf_this_image; |
811 | extern GTY(()) tree gfor_fndecl_caf_num_images; | |
b8ff4e88 | 812 | extern GTY(()) tree gfor_fndecl_caf_register; |
5d81ddd0 | 813 | extern GTY(()) tree gfor_fndecl_caf_deregister; |
b5116268 TB |
814 | extern GTY(()) tree gfor_fndecl_caf_get; |
815 | extern GTY(()) tree gfor_fndecl_caf_send; | |
816 | extern GTY(()) tree gfor_fndecl_caf_sendget; | |
3c9f5092 AV |
817 | extern GTY(()) tree gfor_fndecl_caf_get_by_ref; |
818 | extern GTY(()) tree gfor_fndecl_caf_send_by_ref; | |
819 | extern GTY(()) tree gfor_fndecl_caf_sendget_by_ref; | |
60386f50 | 820 | extern GTY(()) tree gfor_fndecl_caf_sync_all; |
9315dff0 | 821 | extern GTY(()) tree gfor_fndecl_caf_sync_memory; |
60386f50 | 822 | extern GTY(()) tree gfor_fndecl_caf_sync_images; |
0daa7ed9 AF |
823 | extern GTY(()) tree gfor_fndecl_caf_stop_numeric; |
824 | extern GTY(()) tree gfor_fndecl_caf_stop_str; | |
60386f50 TB |
825 | extern GTY(()) tree gfor_fndecl_caf_error_stop; |
826 | extern GTY(()) tree gfor_fndecl_caf_error_stop_str; | |
42a8246d TB |
827 | extern GTY(()) tree gfor_fndecl_caf_atomic_def; |
828 | extern GTY(()) tree gfor_fndecl_caf_atomic_ref; | |
829 | extern GTY(()) tree gfor_fndecl_caf_atomic_cas; | |
830 | extern GTY(()) tree gfor_fndecl_caf_atomic_op; | |
bc0229f9 TB |
831 | extern GTY(()) tree gfor_fndecl_caf_lock; |
832 | extern GTY(()) tree gfor_fndecl_caf_unlock; | |
5df445a2 TB |
833 | extern GTY(()) tree gfor_fndecl_caf_event_post; |
834 | extern GTY(()) tree gfor_fndecl_caf_event_wait; | |
835 | extern GTY(()) tree gfor_fndecl_caf_event_query; | |
a16ee379 | 836 | extern GTY(()) tree gfor_fndecl_co_broadcast; |
d62cf3df TB |
837 | extern GTY(()) tree gfor_fndecl_co_max; |
838 | extern GTY(()) tree gfor_fndecl_co_min; | |
229c5919 | 839 | extern GTY(()) tree gfor_fndecl_co_reduce; |
d62cf3df | 840 | extern GTY(()) tree gfor_fndecl_co_sum; |
ba85c8c3 | 841 | extern GTY(()) tree gfor_fndecl_caf_is_present; |
60386f50 | 842 | |
6de9cd9a DN |
843 | /* Math functions. Many other math functions are handled in |
844 | trans-intrinsic.c. */ | |
5b200ac2 | 845 | |
d1b38208 | 846 | typedef struct GTY(()) gfc_powdecl_list { |
5b200ac2 FW |
847 | tree integer; |
848 | tree real; | |
849 | tree cmplx; | |
850 | } | |
851 | gfc_powdecl_list; | |
852 | ||
644cb69f | 853 | extern GTY(()) gfc_powdecl_list gfor_fndecl_math_powi[4][3]; |
6de9cd9a DN |
854 | extern GTY(()) tree gfor_fndecl_math_ishftc4; |
855 | extern GTY(()) tree gfor_fndecl_math_ishftc8; | |
644cb69f | 856 | extern GTY(()) tree gfor_fndecl_math_ishftc16; |
6de9cd9a | 857 | |
5a0aad31 FXC |
858 | /* BLAS functions. */ |
859 | extern GTY(()) tree gfor_fndecl_sgemm; | |
860 | extern GTY(()) tree gfor_fndecl_dgemm; | |
861 | extern GTY(()) tree gfor_fndecl_cgemm; | |
862 | extern GTY(()) tree gfor_fndecl_zgemm; | |
863 | ||
6de9cd9a | 864 | /* String functions. */ |
6de9cd9a DN |
865 | extern GTY(()) tree gfor_fndecl_compare_string; |
866 | extern GTY(()) tree gfor_fndecl_concat_string; | |
867 | extern GTY(()) tree gfor_fndecl_string_len_trim; | |
868 | extern GTY(()) tree gfor_fndecl_string_index; | |
869 | extern GTY(()) tree gfor_fndecl_string_scan; | |
870 | extern GTY(()) tree gfor_fndecl_string_verify; | |
871 | extern GTY(()) tree gfor_fndecl_string_trim; | |
2263c775 | 872 | extern GTY(()) tree gfor_fndecl_string_minmax; |
6de9cd9a DN |
873 | extern GTY(()) tree gfor_fndecl_adjustl; |
874 | extern GTY(()) tree gfor_fndecl_adjustr; | |
d393bbd7 | 875 | extern GTY(()) tree gfor_fndecl_select_string; |
374929b2 FXC |
876 | extern GTY(()) tree gfor_fndecl_compare_string_char4; |
877 | extern GTY(()) tree gfor_fndecl_concat_string_char4; | |
878 | extern GTY(()) tree gfor_fndecl_string_len_trim_char4; | |
879 | extern GTY(()) tree gfor_fndecl_string_index_char4; | |
880 | extern GTY(()) tree gfor_fndecl_string_scan_char4; | |
881 | extern GTY(()) tree gfor_fndecl_string_verify_char4; | |
882 | extern GTY(()) tree gfor_fndecl_string_trim_char4; | |
883 | extern GTY(()) tree gfor_fndecl_string_minmax_char4; | |
884 | extern GTY(()) tree gfor_fndecl_adjustl_char4; | |
885 | extern GTY(()) tree gfor_fndecl_adjustr_char4; | |
d393bbd7 FXC |
886 | extern GTY(()) tree gfor_fndecl_select_string_char4; |
887 | ||
888 | /* Conversion between character kinds. */ | |
889 | extern GTY(()) tree gfor_fndecl_convert_char1_to_char4; | |
890 | extern GTY(()) tree gfor_fndecl_convert_char4_to_char1; | |
6de9cd9a DN |
891 | |
892 | /* Other misc. runtime library functions. */ | |
893 | extern GTY(()) tree gfor_fndecl_size0; | |
894 | extern GTY(()) tree gfor_fndecl_size1; | |
b41b2534 | 895 | extern GTY(()) tree gfor_fndecl_iargc; |
6de9cd9a | 896 | |
a39fafac FXC |
897 | /* Implemented in Fortran. */ |
898 | extern GTY(()) tree gfor_fndecl_sc_kind; | |
6de9cd9a DN |
899 | extern GTY(()) tree gfor_fndecl_si_kind; |
900 | extern GTY(()) tree gfor_fndecl_sr_kind; | |
901 | ||
3b7ea188 FXC |
902 | /* IEEE-related. */ |
903 | extern GTY(()) tree gfor_fndecl_ieee_procedure_entry; | |
904 | extern GTY(()) tree gfor_fndecl_ieee_procedure_exit; | |
905 | ||
6de9cd9a DN |
906 | |
907 | /* True if node is an integer constant. */ | |
908 | #define INTEGER_CST_P(node) (TREE_CODE(node) == INTEGER_CST) | |
909 | ||
fe4e525c TB |
910 | /* gfortran-specific declaration information, the _CONT versions denote |
911 | arrays with CONTIGUOUS attribute. */ | |
6de9cd9a | 912 | |
fad0afd7 JJ |
913 | enum gfc_array_kind |
914 | { | |
915 | GFC_ARRAY_UNKNOWN, | |
916 | GFC_ARRAY_ASSUMED_SHAPE, | |
fe4e525c | 917 | GFC_ARRAY_ASSUMED_SHAPE_CONT, |
c62c6622 TB |
918 | GFC_ARRAY_ASSUMED_RANK, |
919 | GFC_ARRAY_ASSUMED_RANK_CONT, | |
fad0afd7 | 920 | GFC_ARRAY_ALLOCATABLE, |
fe4e525c TB |
921 | GFC_ARRAY_POINTER, |
922 | GFC_ARRAY_POINTER_CONT | |
fad0afd7 JJ |
923 | }; |
924 | ||
6de9cd9a | 925 | /* Array types only. */ |
766090c2 | 926 | struct GTY(()) lang_type { |
a3935ffc | 927 | int rank, corank; |
fad0afd7 | 928 | enum gfc_array_kind akind; |
6de9cd9a DN |
929 | tree lbound[GFC_MAX_DIMENSIONS]; |
930 | tree ubound[GFC_MAX_DIMENSIONS]; | |
931 | tree stride[GFC_MAX_DIMENSIONS]; | |
932 | tree size; | |
933 | tree offset; | |
934 | tree dtype; | |
935 | tree dataptr_type; | |
de870512 | 936 | tree span; |
d560566a | 937 | tree base_decl[2]; |
b3c1b8a1 | 938 | tree nonrestricted_type; |
b8ff4e88 | 939 | tree caf_token; |
0c53708e | 940 | tree caf_offset; |
6de9cd9a DN |
941 | }; |
942 | ||
766090c2 | 943 | struct GTY(()) lang_decl { |
6de9cd9a DN |
944 | /* Dummy variables. */ |
945 | tree saved_descriptor; | |
946 | /* Assigned integer nodes. Stringlength is the IO format string's length. | |
947 | Addr is the address of the string or the target label. Stringlength is | |
1f2959f0 | 948 | initialized to -2 and assigned to -1 when addr is assigned to the |
6de9cd9a DN |
949 | address of target label. */ |
950 | tree stringlen; | |
951 | tree addr; | |
1d6b7f39 | 952 | tree span; |
aa13dc3c TB |
953 | /* For assumed-shape coarrays. */ |
954 | tree token, caf_offset; | |
92d28cbb JJ |
955 | unsigned int scalar_allocatable : 1; |
956 | unsigned int scalar_pointer : 1; | |
6de9cd9a DN |
957 | }; |
958 | ||
959 | ||
960 | #define GFC_DECL_ASSIGN_ADDR(node) DECL_LANG_SPECIFIC(node)->addr | |
961 | #define GFC_DECL_STRING_LEN(node) DECL_LANG_SPECIFIC(node)->stringlen | |
1d6b7f39 | 962 | #define GFC_DECL_SPAN(node) DECL_LANG_SPECIFIC(node)->span |
aa13dc3c TB |
963 | #define GFC_DECL_TOKEN(node) DECL_LANG_SPECIFIC(node)->token |
964 | #define GFC_DECL_CAF_OFFSET(node) DECL_LANG_SPECIFIC(node)->caf_offset | |
6de9cd9a DN |
965 | #define GFC_DECL_SAVED_DESCRIPTOR(node) \ |
966 | (DECL_LANG_SPECIFIC(node)->saved_descriptor) | |
92d28cbb JJ |
967 | #define GFC_DECL_SCALAR_ALLOCATABLE(node) \ |
968 | (DECL_LANG_SPECIFIC (node)->scalar_allocatable) | |
969 | #define GFC_DECL_SCALAR_POINTER(node) \ | |
970 | (DECL_LANG_SPECIFIC (node)->scalar_pointer) | |
971 | #define GFC_DECL_GET_SCALAR_ALLOCATABLE(node) \ | |
972 | (DECL_LANG_SPECIFIC (node) ? GFC_DECL_SCALAR_ALLOCATABLE (node) : 0) | |
973 | #define GFC_DECL_GET_SCALAR_POINTER(node) \ | |
974 | (DECL_LANG_SPECIFIC (node) ? GFC_DECL_SCALAR_POINTER (node) : 0) | |
6de9cd9a DN |
975 | #define GFC_DECL_PACKED_ARRAY(node) DECL_LANG_FLAG_0(node) |
976 | #define GFC_DECL_PARTIAL_PACKED_ARRAY(node) DECL_LANG_FLAG_1(node) | |
977 | #define GFC_DECL_ASSIGN(node) DECL_LANG_FLAG_2(node) | |
6c7a4dfd JJ |
978 | #define GFC_DECL_COMMON_OR_EQUIV(node) DECL_LANG_FLAG_3(node) |
979 | #define GFC_DECL_CRAY_POINTEE(node) DECL_LANG_FLAG_4(node) | |
980 | #define GFC_DECL_RESULT(node) DECL_LANG_FLAG_5(node) | |
1d6b7f39 | 981 | #define GFC_DECL_SUBREF_ARRAY_P(node) DECL_LANG_FLAG_6(node) |
92d28cbb | 982 | #define GFC_DECL_ASSOCIATE_VAR_P(node) DECL_LANG_FLAG_7(node) |
c49ea23d | 983 | #define GFC_DECL_CLASS(node) DECL_LANG_FLAG_8(node) |
6de9cd9a DN |
984 | |
985 | /* An array descriptor. */ | |
986 | #define GFC_DESCRIPTOR_TYPE_P(node) TYPE_LANG_FLAG_1(node) | |
987 | /* An array without a descriptor. */ | |
988 | #define GFC_ARRAY_TYPE_P(node) TYPE_LANG_FLAG_2(node) | |
8f75db9f PT |
989 | /* Fortran CLASS type. */ |
990 | #define GFC_CLASS_TYPE_P(node) TYPE_LANG_FLAG_4(node) | |
6de9cd9a DN |
991 | /* The GFC_TYPE_ARRAY_* members are present in both descriptor and |
992 | descriptorless array types. */ | |
993 | #define GFC_TYPE_ARRAY_LBOUND(node, dim) \ | |
994 | (TYPE_LANG_SPECIFIC(node)->lbound[dim]) | |
995 | #define GFC_TYPE_ARRAY_UBOUND(node, dim) \ | |
996 | (TYPE_LANG_SPECIFIC(node)->ubound[dim]) | |
997 | #define GFC_TYPE_ARRAY_STRIDE(node, dim) \ | |
998 | (TYPE_LANG_SPECIFIC(node)->stride[dim]) | |
999 | #define GFC_TYPE_ARRAY_RANK(node) (TYPE_LANG_SPECIFIC(node)->rank) | |
a3935ffc | 1000 | #define GFC_TYPE_ARRAY_CORANK(node) (TYPE_LANG_SPECIFIC(node)->corank) |
b8ff4e88 | 1001 | #define GFC_TYPE_ARRAY_CAF_TOKEN(node) (TYPE_LANG_SPECIFIC(node)->caf_token) |
0c53708e | 1002 | #define GFC_TYPE_ARRAY_CAF_OFFSET(node) (TYPE_LANG_SPECIFIC(node)->caf_offset) |
6de9cd9a DN |
1003 | #define GFC_TYPE_ARRAY_SIZE(node) (TYPE_LANG_SPECIFIC(node)->size) |
1004 | #define GFC_TYPE_ARRAY_OFFSET(node) (TYPE_LANG_SPECIFIC(node)->offset) | |
fad0afd7 | 1005 | #define GFC_TYPE_ARRAY_AKIND(node) (TYPE_LANG_SPECIFIC(node)->akind) |
df2fba9e | 1006 | /* Code should use gfc_get_dtype instead of accessing this directly. It may |
40b026d8 | 1007 | not be known when the type is created. */ |
6de9cd9a DN |
1008 | #define GFC_TYPE_ARRAY_DTYPE(node) (TYPE_LANG_SPECIFIC(node)->dtype) |
1009 | #define GFC_TYPE_ARRAY_DATAPTR_TYPE(node) \ | |
1010 | (TYPE_LANG_SPECIFIC(node)->dataptr_type) | |
de870512 | 1011 | #define GFC_TYPE_ARRAY_SPAN(node) (TYPE_LANG_SPECIFIC(node)->span) |
d560566a AO |
1012 | #define GFC_TYPE_ARRAY_BASE_DECL(node, internal) \ |
1013 | (TYPE_LANG_SPECIFIC(node)->base_decl[(internal)]) | |
6de9cd9a | 1014 | |
5d44e5c8 | 1015 | |
6de9cd9a | 1016 | /* Build an expression with void type. */ |
5d44e5c8 TB |
1017 | #define build1_v(code, arg) \ |
1018 | fold_build1_loc (input_location, code, void_type_node, arg) | |
1019 | #define build2_v(code, arg1, arg2) \ | |
1020 | fold_build2_loc (input_location, code, void_type_node, arg1, arg2) | |
1021 | #define build3_v(code, arg1, arg2, arg3) \ | |
1022 | fold_build3_loc (input_location, code, void_type_node, arg1, arg2, arg3) | |
1023 | #define build4_v(code, arg1, arg2, arg3, arg4) \ | |
1024 | build4_loc (input_location, code, void_type_node, arg1, arg2, \ | |
1025 | arg3, arg4) | |
62ab4a54 RS |
1026 | |
1027 | /* This group of functions allows a caller to evaluate an expression from | |
1028 | the callee's interface. It establishes a mapping between the interface's | |
1029 | dummy arguments and the caller's actual arguments, then applies that | |
1030 | mapping to a given gfc_expr. | |
1031 | ||
1032 | You can initialize a mapping structure like so: | |
1033 | ||
1034 | gfc_interface_mapping mapping; | |
1035 | ... | |
1036 | gfc_init_interface_mapping (&mapping); | |
1037 | ||
1038 | You should then evaluate each actual argument into a temporary | |
1039 | gfc_se structure, here called "se", and map the result to the | |
1040 | dummy argument's symbol, here called "sym": | |
1041 | ||
1042 | gfc_add_interface_mapping (&mapping, sym, &se); | |
1043 | ||
1044 | After adding all mappings, you should call: | |
1045 | ||
1046 | gfc_finish_interface_mapping (&mapping, pre, post); | |
1047 | ||
1048 | where "pre" and "post" are statement blocks for initialization | |
1049 | and finalization code respectively. You can then evaluate an | |
1050 | interface expression "expr" as follows: | |
1051 | ||
1052 | gfc_apply_interface_mapping (&mapping, se, expr); | |
1053 | ||
1054 | Once you've evaluated all expressions, you should free | |
1055 | the mapping structure with: | |
1056 | ||
1057 | gfc_free_interface_mapping (&mapping); */ | |
1058 | ||
1059 | ||
1060 | /* This structure represents a mapping from OLD to NEW, where OLD is a | |
1061 | dummy argument symbol and NEW is a symbol that represents the value | |
1062 | of an actual argument. Mappings are linked together using NEXT | |
1063 | (in no particular order). */ | |
1064 | typedef struct gfc_interface_sym_mapping | |
1065 | { | |
1066 | struct gfc_interface_sym_mapping *next; | |
1067 | gfc_symbol *old; | |
7b901ac4 | 1068 | gfc_symtree *new_sym; |
0a164a3c | 1069 | gfc_expr *expr; |
62ab4a54 RS |
1070 | } |
1071 | gfc_interface_sym_mapping; | |
1072 | ||
1073 | ||
1074 | /* This structure is used by callers to evaluate an expression from | |
1075 | a callee's interface. */ | |
1076 | typedef struct gfc_interface_mapping | |
1077 | { | |
1078 | /* Maps the interface's dummy arguments to the values that the caller | |
1079 | is passing. The whole list is owned by this gfc_interface_mapping. */ | |
1080 | gfc_interface_sym_mapping *syms; | |
1081 | ||
1082 | /* A list of gfc_charlens that were needed when creating copies of | |
1083 | expressions. The whole list is owned by this gfc_interface_mapping. */ | |
1084 | gfc_charlen *charlens; | |
1085 | } | |
1086 | gfc_interface_mapping; | |
1087 | ||
1088 | void gfc_init_interface_mapping (gfc_interface_mapping *); | |
1089 | void gfc_free_interface_mapping (gfc_interface_mapping *); | |
1090 | void gfc_add_interface_mapping (gfc_interface_mapping *, | |
0a164a3c | 1091 | gfc_symbol *, gfc_se *, gfc_expr *); |
62ab4a54 RS |
1092 | void gfc_finish_interface_mapping (gfc_interface_mapping *, |
1093 | stmtblock_t *, stmtblock_t *); | |
1094 | void gfc_apply_interface_mapping (gfc_interface_mapping *, | |
1095 | gfc_se *, gfc_expr *); | |
1096 | ||
dd18a33b FXC |
1097 | |
1098 | /* Standard error messages used in all the trans-*.c files. */ | |
7e49f965 TS |
1099 | extern const char gfc_msg_fault[]; |
1100 | extern const char gfc_msg_wrong_return[]; | |
dd18a33b | 1101 | |
34d01e1d VL |
1102 | #define OMPWS_WORKSHARE_FLAG 1 /* Set if in a workshare construct. */ |
1103 | #define OMPWS_CURR_SINGLEUNIT 2 /* Set if current gfc_code in workshare | |
1104 | construct is not workshared. */ | |
1105 | #define OMPWS_SCALARIZER_WS 4 /* Set if scalarizer should attempt | |
1106 | to create parallel loops. */ | |
57bf3072 JJ |
1107 | #define OMPWS_SCALARIZER_BODY 8 /* Set if handling body of potential |
1108 | parallel loop. */ | |
1109 | #define OMPWS_NOWAIT 16 /* Use NOWAIT on OMP_FOR. */ | |
34d01e1d | 1110 | extern int ompws_flags; |
dd18a33b | 1111 | |
6de9cd9a | 1112 | #endif /* GFC_TRANS_H */ |