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6de9cd9a | 1 | /* Header for code translation functions |
5624e564 | 2 | Copyright (C) 2002-2015 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 | ||
52 | /* If set gfc_conv_variable will return an expression for the array | |
53 | descriptor. When set, want_pointer should also be set. | |
54 | If not set scalarizing variables will be substituted. */ | |
55 | unsigned descriptor_only:1; | |
56 | ||
57 | /* When this is set gfc_conv_expr returns the address of a variable. Only | |
58 | applies to EXPR_VARIABLE nodes. | |
59 | Also used by gfc_conv_array_parameter. When set this indicates a pointer | |
60 | to the descriptor should be returned, rather than the descriptor itself. | |
61 | */ | |
62 | unsigned want_pointer:1; | |
63 | ||
64 | /* An array function call returning without a temporary. Also used for array | |
65 | pointer assignments. */ | |
66 | unsigned direct_byref:1; | |
67 | ||
99d821c0 DK |
68 | /* If direct_byref is set, do work out the descriptor as in that case but |
69 | do still create a new descriptor variable instead of using an | |
70 | existing one. This is useful for special pointer assignments like | |
71 | rank remapping where we have to process the descriptor before | |
72 | assigning to final one. */ | |
73 | unsigned byref_noassign:1; | |
74 | ||
6de9cd9a DN |
75 | /* Ignore absent optional arguments. Used for some intrinsics. */ |
76 | unsigned ignore_optional:1; | |
77 | ||
ad5dd90d PT |
78 | /* When this is set the data and offset fields of the returned descriptor |
79 | are NULL. Used by intrinsic size. */ | |
80 | unsigned data_not_needed:1; | |
81 | ||
713485cc | 82 | /* If set, gfc_conv_procedure_call does not put byref calls into se->pre. */ |
0ee8e250 PT |
83 | unsigned no_function_call:1; |
84 | ||
0b4f2770 MM |
85 | /* If set, we will force the creation of a temporary. Useful to disable |
86 | non-copying procedure argument passing optimizations, when some function | |
87 | args alias. */ | |
88 | unsigned force_tmp:1; | |
89 | ||
1cf43a1d PT |
90 | /* Unconditionally calculate offset for array segments and constant |
91 | arrays in gfc_conv_expr_descriptor. */ | |
92 | unsigned use_offset:1; | |
93 | ||
23c3d0f9 MM |
94 | unsigned want_coarray:1; |
95 | ||
6de9cd9a DN |
96 | /* Scalarization parameters. */ |
97 | struct gfc_se *parent; | |
98 | struct gfc_ss *ss; | |
99 | struct gfc_loopinfo *loop; | |
100 | } | |
101 | gfc_se; | |
102 | ||
103 | ||
ea6363a3 DC |
104 | /* Denotes different types of coarray. |
105 | Please keep in sync with libgfortran/caf/libcaf.h. */ | |
1cf43a1d | 106 | typedef enum |
ea6363a3 DC |
107 | { |
108 | GFC_CAF_COARRAY_STATIC, | |
109 | GFC_CAF_COARRAY_ALLOC, | |
bc0229f9 TB |
110 | GFC_CAF_LOCK_STATIC, |
111 | GFC_CAF_LOCK_ALLOC, | |
112 | GFC_CAF_CRITICAL | |
ea6363a3 DC |
113 | } |
114 | gfc_coarray_type; | |
115 | ||
116 | ||
62732c30 | 117 | /* The array-specific scalarization information. The array members of |
6d63e468 | 118 | this struct are indexed by actual array index, and thus can be sparse. */ |
6de9cd9a | 119 | |
6d63e468 | 120 | typedef struct gfc_array_info |
6de9cd9a | 121 | { |
08dcec61 MM |
122 | mpz_t *shape; |
123 | ||
6de9cd9a DN |
124 | /* The ref that holds information on this section. */ |
125 | gfc_ref *ref; | |
126 | /* The descriptor of this array. */ | |
127 | tree descriptor; | |
128 | /* holds the pointer to the data array. */ | |
129 | tree data; | |
130 | /* To move some of the array index calculation out of the innermost loop. */ | |
131 | tree offset; | |
132 | tree saved_offset; | |
133 | tree stride0; | |
134 | /* Holds the SS for a subscript. Indexed by actual dimension. */ | |
135 | struct gfc_ss *subscript[GFC_MAX_DIMENSIONS]; | |
136 | ||
137 | /* stride and delta are used to access this inside a scalarization loop. | |
138 | start is used in the calculation of these. Indexed by scalarizer | |
139 | dimension. */ | |
140 | tree start[GFC_MAX_DIMENSIONS]; | |
8424e0d8 | 141 | tree end[GFC_MAX_DIMENSIONS]; |
6de9cd9a DN |
142 | tree stride[GFC_MAX_DIMENSIONS]; |
143 | tree delta[GFC_MAX_DIMENSIONS]; | |
6de9cd9a | 144 | } |
6d63e468 | 145 | gfc_array_info; |
6de9cd9a DN |
146 | |
147 | typedef enum | |
148 | { | |
149 | /* A scalar value. This will be evaluated before entering the | |
150 | scalarization loop. */ | |
151 | GFC_SS_SCALAR, | |
152 | ||
991b4da1 | 153 | /* Like GFC_SS_SCALAR it evaluates the expression outside the |
0192ef20 MM |
154 | loop. Is always evaluated as a reference to the temporary, unless |
155 | temporary evaluation can result in a NULL pointer dereferencing (case of | |
156 | optional arguments). Used for elemental function arguments. */ | |
6de9cd9a DN |
157 | GFC_SS_REFERENCE, |
158 | ||
159 | /* An array section. Scalarization indices will be substituted during | |
160 | expression translation. */ | |
161 | GFC_SS_SECTION, | |
162 | ||
163 | /* A non-elemental function call returning an array. The call is executed | |
164 | before entering the scalarization loop, storing the result in a | |
165 | temporary. This temporary is then used inside the scalarization loop. | |
df2fba9e | 166 | Simple assignments, e.g. a(:) = fn(), are handled without a temporary |
6de9cd9a DN |
167 | as a special case. */ |
168 | GFC_SS_FUNCTION, | |
169 | ||
170 | /* An array constructor. The current implementation is sub-optimal in | |
171 | many cases. It allocated a temporary, assigns the values to it, then | |
172 | uses this temporary inside the scalarization loop. */ | |
173 | GFC_SS_CONSTRUCTOR, | |
174 | ||
7a70c12d RS |
175 | /* A vector subscript. The vector's descriptor is cached in the |
176 | "descriptor" field of the associated gfc_ss_info. */ | |
6de9cd9a DN |
177 | GFC_SS_VECTOR, |
178 | ||
179 | /* A temporary array allocated by the scalarizer. Its rank can be less | |
180 | than that of the assignment expression. */ | |
181 | GFC_SS_TEMP, | |
182 | ||
183 | /* An intrinsic function call. Many intrinsic functions which map directly | |
184 | to library calls are created as GFC_SS_FUNCTION nodes. */ | |
e9cfef64 | 185 | GFC_SS_INTRINSIC, |
1cf43a1d | 186 | |
e9cfef64 PB |
187 | /* A component of a derived type. */ |
188 | GFC_SS_COMPONENT | |
6de9cd9a DN |
189 | } |
190 | gfc_ss_type; | |
191 | ||
6d63e468 | 192 | |
bcc4d4e0 MM |
193 | typedef struct gfc_ss_info |
194 | { | |
c7bf4f1e | 195 | int refcount; |
bcc4d4e0 | 196 | gfc_ss_type type; |
f98cfd3c | 197 | gfc_expr *expr; |
a0add3be | 198 | tree string_length; |
99dd5a29 MM |
199 | |
200 | union | |
201 | { | |
202 | /* If type is GFC_SS_SCALAR or GFC_SS_REFERENCE. */ | |
203 | struct | |
204 | { | |
205 | tree value; | |
206 | } | |
207 | scalar; | |
961e73ac MM |
208 | |
209 | /* GFC_SS_TEMP. */ | |
210 | struct | |
211 | { | |
212 | tree type; | |
213 | } | |
214 | temp; | |
1838afec MM |
215 | |
216 | /* All other types. */ | |
217 | gfc_array_info array; | |
99dd5a29 MM |
218 | } |
219 | data; | |
7a412892 MM |
220 | |
221 | /* This is used by assignments requiring temporaries. The bits specify which | |
222 | loops the terms appear in. This will be 1 for the RHS expressions, | |
223 | 2 for the LHS expressions, and 3(=1|2) for the temporary. */ | |
224 | unsigned useflags:2; | |
42d0058e MM |
225 | |
226 | /* Suppresses precalculation of scalars in WHERE assignments. */ | |
227 | unsigned where:1; | |
9bcf7121 MM |
228 | |
229 | /* Tells whether the SS is for an actual argument which can be a NULL | |
230 | reference. In other words, the associated dummy argument is OPTIONAL. | |
231 | Used to handle elemental procedures. */ | |
232 | bool can_be_null_ref; | |
bcc4d4e0 MM |
233 | } |
234 | gfc_ss_info; | |
235 | ||
236 | #define gfc_get_ss_info() XCNEW (gfc_ss_info) | |
237 | ||
238 | ||
6d63e468 MM |
239 | /* Scalarization State chain. Created by walking an expression tree before |
240 | creating the scalarization loops. Then passed as part of a gfc_se structure | |
241 | to translate the expression inside the loop. Note that these chains are | |
242 | terminated by gfc_ss_terminator, not NULL. A NULL pointer in a gfc_se | |
243 | indicates to gfc_conv_* that this is a scalar expression. | |
244 | SS structures can only belong to a single loopinfo. They must be added | |
6de9cd9a | 245 | otherwise they will not get freed. */ |
6d63e468 | 246 | |
6de9cd9a DN |
247 | typedef struct gfc_ss |
248 | { | |
bcc4d4e0 MM |
249 | gfc_ss_info *info; |
250 | ||
cb4b9eae MM |
251 | int dimen; |
252 | /* Translation from loop dimensions to actual array dimensions. | |
253 | actual_dim = dim[loop_dim] */ | |
254 | int dim[GFC_MAX_DIMENSIONS]; | |
255 | ||
6de9cd9a DN |
256 | /* All the SS in a loop and linked through loop_chain. The SS for an |
257 | expression are linked by the next pointer. */ | |
258 | struct gfc_ss *loop_chain; | |
259 | struct gfc_ss *next; | |
260 | ||
2eace29a MM |
261 | /* Non-null if the ss is part of a nested loop. */ |
262 | struct gfc_ss *parent; | |
263 | ||
4d6a0e36 MM |
264 | /* If the evaluation of an expression requires a nested loop (for example |
265 | if the sum intrinsic is evaluated inline), this points to the nested | |
266 | loop's gfc_ss. */ | |
267 | struct gfc_ss *nested_ss; | |
268 | ||
4615abe8 MM |
269 | /* The loop this gfc_ss is in. */ |
270 | struct gfc_loopinfo *loop; | |
271 | ||
42d0058e | 272 | unsigned is_alloc_lhs:1; |
6de9cd9a DN |
273 | } |
274 | gfc_ss; | |
ece3f663 | 275 | #define gfc_get_ss() XCNEW (gfc_ss) |
6de9cd9a | 276 | |
1f2959f0 | 277 | /* The contents of this aren't actually used. A NULL SS chain indicates a |
6de9cd9a DN |
278 | scalar expression, so this pointer is used to terminate SS chains. */ |
279 | extern gfc_ss * const gfc_ss_terminator; | |
280 | ||
281 | /* Holds information about an expression while it is being scalarized. */ | |
282 | typedef struct gfc_loopinfo | |
283 | { | |
284 | stmtblock_t pre; | |
285 | stmtblock_t post; | |
286 | ||
c6d741b8 | 287 | int dimen; |
6de9cd9a DN |
288 | |
289 | /* All the SS involved with this loop. */ | |
290 | gfc_ss *ss; | |
e7dc5b4f | 291 | /* The SS describing the temporary used in an assignment. */ |
6de9cd9a DN |
292 | gfc_ss *temp_ss; |
293 | ||
4616ef9b MM |
294 | /* Non-null if this loop is nested in another one. */ |
295 | struct gfc_loopinfo *parent; | |
296 | ||
9d758043 MM |
297 | /* Chain of nested loops. */ |
298 | struct gfc_loopinfo *nested, *next; | |
299 | ||
6de9cd9a DN |
300 | /* The scalarization loop index variables. */ |
301 | tree loopvar[GFC_MAX_DIMENSIONS]; | |
302 | ||
303 | /* The bounds of the scalarization loops. */ | |
304 | tree from[GFC_MAX_DIMENSIONS]; | |
305 | tree to[GFC_MAX_DIMENSIONS]; | |
306 | gfc_ss *specloop[GFC_MAX_DIMENSIONS]; | |
307 | ||
308 | /* The code member contains the code for the body of the next outer loop. */ | |
309 | stmtblock_t code[GFC_MAX_DIMENSIONS]; | |
310 | ||
311 | /* Order in which the dimensions should be looped, innermost first. */ | |
312 | int order[GFC_MAX_DIMENSIONS]; | |
313 | ||
3d03ead0 PT |
314 | /* Enum to control loop reversal. */ |
315 | gfc_reverse reverse[GFC_MAX_DIMENSIONS]; | |
316 | ||
6de9cd9a DN |
317 | /* The number of dimensions for which a temporary is used. */ |
318 | int temp_dim; | |
319 | ||
320 | /* If set we don't need the loop variables. */ | |
321 | unsigned array_parameter:1; | |
322 | } | |
323 | gfc_loopinfo; | |
324 | ||
0c08de8f | 325 | #define gfc_get_loopinfo() XCNEW (gfc_loopinfo) |
7b5b57b7 PB |
326 | |
327 | /* Information about a symbol that has been shadowed by a temporary. */ | |
328 | typedef struct | |
329 | { | |
330 | symbol_attribute attr; | |
331 | tree decl; | |
332 | } | |
333 | gfc_saved_var; | |
334 | ||
335 | ||
0019d498 DK |
336 | /* Store information about a block of code together with special |
337 | initialization and clean-up code. This can be used to incrementally add | |
338 | init and cleanup, and in the end put everything together to a | |
339 | try-finally expression. */ | |
340 | typedef struct | |
341 | { | |
342 | tree init; | |
343 | tree cleanup; | |
344 | tree code; | |
345 | } | |
346 | gfc_wrapped_block; | |
347 | ||
c49ea23d PT |
348 | /* Class API functions. */ |
349 | tree gfc_class_data_get (tree); | |
350 | tree gfc_class_vptr_get (tree); | |
5b384b3d | 351 | tree gfc_class_len_get (tree); |
4fb5478c | 352 | void gfc_reset_vptr (stmtblock_t *, gfc_expr *); |
f118468a | 353 | tree gfc_class_set_static_fields (tree, tree, tree); |
c49ea23d PT |
354 | tree gfc_vtable_hash_get (tree); |
355 | tree gfc_vtable_size_get (tree); | |
356 | tree gfc_vtable_extends_get (tree); | |
357 | tree gfc_vtable_def_init_get (tree); | |
358 | tree gfc_vtable_copy_get (tree); | |
86035eec | 359 | tree gfc_vtable_final_get (tree); |
8f75db9f | 360 | tree gfc_get_vptr_from_expr (tree); |
4daa71b0 PT |
361 | tree gfc_get_class_array_ref (tree, tree); |
362 | tree gfc_copy_class_to_class (tree, tree, tree); | |
ef292537 | 363 | bool gfc_add_finalizer_call (stmtblock_t *, gfc_expr *); |
895a0c2d TB |
364 | bool gfc_add_comp_finalizer_call (stmtblock_t *, tree, gfc_component *, bool); |
365 | ||
16e82b25 TB |
366 | void gfc_conv_derived_to_class (gfc_se *, gfc_expr *, gfc_typespec, tree, bool, |
367 | bool); | |
368 | void gfc_conv_class_to_class (gfc_se *, gfc_expr *, gfc_typespec, bool, bool, | |
369 | bool, bool); | |
0019d498 DK |
370 | |
371 | /* Initialize an init/cleanup block. */ | |
372 | void gfc_start_wrapped_block (gfc_wrapped_block* block, tree code); | |
373 | /* Add a pair of init/cleanup code to the block. Each one might be a | |
374 | NULL_TREE if not required. */ | |
375 | void gfc_add_init_cleanup (gfc_wrapped_block* block, tree init, tree cleanup); | |
376 | /* Finalize the block, that is, create a single expression encapsulating the | |
377 | original code together with init and clean-up code. */ | |
378 | tree gfc_finish_wrapped_block (gfc_wrapped_block* block); | |
379 | ||
380 | ||
6de9cd9a DN |
381 | /* Advance the SS chain to the next term. */ |
382 | void gfc_advance_se_ss_chain (gfc_se *); | |
383 | ||
aa9c57ec KH |
384 | /* Call this to initialize a gfc_se structure before use |
385 | first parameter is structure to initialize, second is | |
6de9cd9a DN |
386 | parent to get scalarization data from, or NULL. */ |
387 | void gfc_init_se (gfc_se *, gfc_se *); | |
388 | ||
389 | /* Create an artificial variable decl and add it to the current scope. */ | |
390 | tree gfc_create_var (tree, const char *); | |
391 | /* Like above but doesn't add it to the current scope. */ | |
392 | tree gfc_create_var_np (tree, const char *); | |
393 | ||
394 | /* Store the result of an expression in a temp variable so it can be used | |
395 | repeatedly even if the original changes */ | |
396 | void gfc_make_safe_expr (gfc_se * se); | |
397 | ||
398 | /* Makes sure se is suitable for passing as a function string parameter. */ | |
399 | void gfc_conv_string_parameter (gfc_se * se); | |
400 | ||
0a821a92 | 401 | /* Compare two strings. */ |
23b10420 | 402 | tree gfc_build_compare_string (tree, tree, tree, tree, int, enum tree_code); |
0a821a92 | 403 | |
13795658 | 404 | /* When using the gfc_conv_* make sure you understand what they do, i.e. |
69de3b83 | 405 | when a POST chain may be created, and what the returned expression may be |
6de9cd9a DN |
406 | used for. Note that character strings have special handling. This |
407 | should not be a problem as most statements/operations only deal with | |
a4f5cd44 PB |
408 | numeric/logical types. See the implementations in trans-expr.c |
409 | for details of the individual functions. */ | |
6de9cd9a | 410 | |
6de9cd9a | 411 | void gfc_conv_expr (gfc_se * se, gfc_expr * expr); |
6de9cd9a | 412 | void gfc_conv_expr_val (gfc_se * se, gfc_expr * expr); |
6de9cd9a | 413 | void gfc_conv_expr_lhs (gfc_se * se, gfc_expr * expr); |
6de9cd9a | 414 | void gfc_conv_expr_reference (gfc_se * se, gfc_expr *); |
6de9cd9a | 415 | void gfc_conv_expr_type (gfc_se * se, gfc_expr *, tree); |
a4f5cd44 | 416 | |
429cb994 TB |
417 | tree gfc_conv_scalar_to_descriptor (gfc_se *, tree, symbol_attribute); |
418 | ||
419 | ||
e032c2a1 CR |
420 | /* trans-expr.c */ |
421 | void gfc_conv_scalar_char_value (gfc_symbol *sym, gfc_se *se, gfc_expr **expr); | |
d2886bc7 | 422 | tree gfc_string_to_single_character (tree len, tree str, int kind); |
b5116268 | 423 | tree gfc_get_tree_for_caf_expr (gfc_expr *); |
2c69df3b TB |
424 | void gfc_get_caf_token_offset (tree *, tree *, tree, tree, gfc_expr *); |
425 | tree gfc_caf_get_image_index (stmtblock_t *, gfc_expr *, tree); | |
e032c2a1 | 426 | |
ce2df7c6 FW |
427 | /* Find the decl containing the auxiliary variables for assigned variables. */ |
428 | void gfc_conv_label_variable (gfc_se * se, gfc_expr * expr); | |
6de9cd9a | 429 | /* If the value is not constant, Create a temporary and copy the value. */ |
55bd9c35 | 430 | tree gfc_evaluate_now_loc (location_t, tree, stmtblock_t *); |
6de9cd9a DN |
431 | tree gfc_evaluate_now (tree, stmtblock_t *); |
432 | ||
166d08bd FXC |
433 | /* Find the appropriate variant of a math intrinsic. */ |
434 | tree gfc_builtin_decl_for_float_kind (enum built_in_function, int); | |
435 | ||
2b3dc0db PT |
436 | tree size_of_string_in_bytes (int, tree); |
437 | ||
da661a58 TB |
438 | /* Intrinsic procedure handling. */ |
439 | tree gfc_conv_intrinsic_subroutine (gfc_code *); | |
6de9cd9a | 440 | void gfc_conv_intrinsic_function (gfc_se *, gfc_expr *); |
3b7ea188 FXC |
441 | bool gfc_conv_ieee_arithmetic_function (gfc_se *, gfc_expr *); |
442 | tree gfc_save_fp_state (stmtblock_t *); | |
443 | void gfc_restore_fp_state (stmtblock_t *, tree); | |
444 | ||
6de9cd9a | 445 | |
712efae1 MM |
446 | /* Does an intrinsic map directly to an external library call |
447 | This is true for array-returning intrinsics, unless | |
448 | gfc_inline_intrinsic_function_p returns true. */ | |
6de9cd9a | 449 | int gfc_is_intrinsic_libcall (gfc_expr *); |
b2a5eb75 | 450 | |
713485cc JW |
451 | /* Used to call ordinary functions/subroutines |
452 | and procedure pointer components. */ | |
453 | int gfc_conv_procedure_call (gfc_se *, gfc_symbol *, gfc_actual_arglist *, | |
9771b263 | 454 | gfc_expr *, vec<tree, va_gc> *); |
d4feb3d3 | 455 | |
430f2d1f | 456 | void gfc_conv_subref_array_arg (gfc_se *, gfc_expr *, int, sym_intent, bool); |
d4feb3d3 | 457 | |
6de9cd9a | 458 | /* Generate code for a scalar assignment. */ |
2b56d6a4 TB |
459 | tree gfc_trans_scalar_assign (gfc_se *, gfc_se *, gfc_typespec, bool, bool, |
460 | bool); | |
6de9cd9a DN |
461 | |
462 | /* Translate COMMON blocks. */ | |
463 | void gfc_trans_common (gfc_namespace *); | |
464 | ||
f7b529fa | 465 | /* Translate a derived type constructor. */ |
6de9cd9a DN |
466 | void gfc_conv_structure (gfc_se *, gfc_expr *, int); |
467 | ||
468 | /* Return an expression which determines if a dummy parameter is present. */ | |
469 | tree gfc_conv_expr_present (gfc_symbol *); | |
e15e9be3 | 470 | /* Convert a missing, dummy argument into a null or zero. */ |
be9c3c6e | 471 | void gfc_conv_missing_dummy (gfc_se *, gfc_expr *, gfc_typespec, int); |
6de9cd9a DN |
472 | |
473 | /* Generate code to allocate a string temporary. */ | |
474 | tree gfc_conv_string_tmp (gfc_se *, tree, tree); | |
ca2940c3 TS |
475 | /* Get the string length variable belonging to an expression. */ |
476 | tree gfc_get_expr_charlen (gfc_expr *); | |
6de9cd9a | 477 | /* Initialize a string length variable. */ |
4b7f8314 | 478 | void gfc_conv_string_length (gfc_charlen *, gfc_expr *, stmtblock_t *); |
417ab240 JJ |
479 | /* Ensure type sizes can be gimplified. */ |
480 | void gfc_trans_vla_type_sizes (gfc_symbol *, stmtblock_t *); | |
6de9cd9a DN |
481 | |
482 | /* Add an expression to the end of a block. */ | |
483 | void gfc_add_expr_to_block (stmtblock_t *, tree); | |
46b2c440 MM |
484 | /* Add an expression to the beginning of a block. */ |
485 | void gfc_prepend_expr_to_block (stmtblock_t *, tree); | |
6de9cd9a DN |
486 | /* Add a block to the end of a block. */ |
487 | void gfc_add_block_to_block (stmtblock_t *, stmtblock_t *); | |
726a989a | 488 | /* Add a MODIFY_EXPR to a block. */ |
55bd9c35 | 489 | void gfc_add_modify_loc (location_t, stmtblock_t *, tree, tree); |
726a989a | 490 | void gfc_add_modify (stmtblock_t *, tree, tree); |
6de9cd9a DN |
491 | |
492 | /* Initialize a statement block. */ | |
493 | void gfc_init_block (stmtblock_t *); | |
69de3b83 | 494 | /* Start a new statement block. Like gfc_init_block but also starts a new |
6de9cd9a DN |
495 | variable scope. */ |
496 | void gfc_start_block (stmtblock_t *); | |
497 | /* Finish a statement block. Also closes the scope if the block was created | |
498 | with gfc_start_block. */ | |
499 | tree gfc_finish_block (stmtblock_t *); | |
500 | /* Merge the scope of a block with its parent. */ | |
501 | void gfc_merge_block_scope (stmtblock_t * block); | |
502 | ||
503 | /* Return the backend label decl. */ | |
504 | tree gfc_get_label_decl (gfc_st_label *); | |
505 | ||
506 | /* Return the decl for an external function. */ | |
507 | tree gfc_get_extern_function_decl (gfc_symbol *); | |
508 | ||
509 | /* Return the decl for a function. */ | |
510 | tree gfc_get_function_decl (gfc_symbol *); | |
511 | ||
6de9cd9a DN |
512 | /* Build an ADDR_EXPR. */ |
513 | tree gfc_build_addr_expr (tree, tree); | |
514 | ||
6de9cd9a | 515 | /* Build an ARRAY_REF. */ |
1d6b7f39 | 516 | tree gfc_build_array_ref (tree, tree, tree); |
6de9cd9a | 517 | |
49de9e73 | 518 | /* Creates a label. Decl is artificial if label_id == NULL_TREE. */ |
6de9cd9a DN |
519 | tree gfc_build_label_decl (tree); |
520 | ||
521 | /* Return the decl used to hold the function return value. | |
522 | Do not use if the function has an explicit result variable. */ | |
5f20c93a | 523 | tree gfc_get_fake_result_decl (gfc_symbol *, int); |
6de9cd9a | 524 | |
6de9cd9a DN |
525 | /* Add a decl to the binding level for the current function. */ |
526 | void gfc_add_decl_to_function (tree); | |
527 | ||
528 | /* Make prototypes for runtime library functions. */ | |
529 | void gfc_build_builtin_function_decls (void); | |
530 | ||
c8cc8542 PB |
531 | /* Set the backend source location of a decl. */ |
532 | void gfc_set_decl_location (tree, locus *); | |
533 | ||
0101807c PT |
534 | /* Get a module symbol backend_decl if possible. */ |
535 | bool gfc_get_module_backend_decl (gfc_symbol *); | |
536 | ||
6de9cd9a DN |
537 | /* Return the variable decl for a symbol. */ |
538 | tree gfc_get_symbol_decl (gfc_symbol *); | |
539 | ||
597073ac | 540 | /* Build a static initializer. */ |
1d0134b3 | 541 | tree gfc_conv_initializer (gfc_expr *, gfc_typespec *, tree, bool, bool, bool); |
597073ac | 542 | |
f40eccb0 | 543 | /* Assign a default initializer to a derived type. */ |
0019d498 | 544 | void gfc_init_default_dt (gfc_symbol *, stmtblock_t *, bool); |
f40eccb0 | 545 | |
7b5b57b7 PB |
546 | /* Substitute a temporary variable in place of the real one. */ |
547 | void gfc_shadow_sym (gfc_symbol *, tree, gfc_saved_var *); | |
548 | ||
549 | /* Restore the original variable. */ | |
550 | void gfc_restore_sym (gfc_symbol *, gfc_saved_var *); | |
551 | ||
43ce5e52 FXC |
552 | /* Setting a decl assembler name, mangling it according to target rules |
553 | (like Windows @NN decorations). */ | |
554 | void gfc_set_decl_assembler_name (tree, tree); | |
555 | ||
bae88af6 TS |
556 | /* Returns true if a variable of specified size should go on the stack. */ |
557 | int gfc_can_put_var_on_stack (tree); | |
558 | ||
92d28cbb JJ |
559 | /* Set GFC_DECL_SCALAR_* on decl from sym if needed. */ |
560 | void gfc_finish_decl_attrs (tree, symbol_attribute *); | |
561 | ||
69de3b83 | 562 | /* Allocate the lang-specific part of a decl node. */ |
6de9cd9a DN |
563 | void gfc_allocate_lang_decl (tree); |
564 | ||
565 | /* Advance along a TREE_CHAIN. */ | |
566 | tree gfc_advance_chain (tree, int); | |
567 | ||
568 | /* Create a decl for a function. */ | |
fb55ca75 | 569 | void gfc_create_function_decl (gfc_namespace *, bool); |
6de9cd9a DN |
570 | /* Generate the code for a function. */ |
571 | void gfc_generate_function_code (gfc_namespace *); | |
0de4325e TS |
572 | /* Output a BLOCK DATA program unit. */ |
573 | void gfc_generate_block_data (gfc_namespace *); | |
6de9cd9a DN |
574 | /* Output a decl for a module variable. */ |
575 | void gfc_generate_module_vars (gfc_namespace *); | |
d74d8807 DK |
576 | /* Get the appropriate return statement for a procedure. */ |
577 | tree gfc_generate_return (void); | |
6de9cd9a | 578 | |
2a22f99c TS |
579 | struct module_decl_hasher : ggc_hasher<tree_node *> |
580 | { | |
581 | typedef const char *compare_type; | |
582 | ||
583 | static hashval_t hash (tree); | |
584 | static bool equal (tree, const char *); | |
585 | }; | |
586 | ||
587 | struct GTY((for_user)) module_htab_entry { | |
a64f5186 JJ |
588 | const char *name; |
589 | tree namespace_decl; | |
2a22f99c | 590 | hash_table<module_decl_hasher> *GTY (()) decls; |
a64f5186 JJ |
591 | }; |
592 | ||
593 | struct module_htab_entry *gfc_find_module (const char *); | |
594 | void gfc_module_add_decl (struct module_htab_entry *, tree); | |
595 | ||
6de9cd9a | 596 | /* Get and set the current location. */ |
363aab21 | 597 | void gfc_save_backend_locus (locus *); |
6de9cd9a | 598 | void gfc_set_backend_locus (locus *); |
363aab21 | 599 | void gfc_restore_backend_locus (locus *); |
6de9cd9a DN |
600 | |
601 | /* Handle static constructor functions. */ | |
602 | extern GTY(()) tree gfc_static_ctors; | |
603 | void gfc_generate_constructors (void); | |
604 | ||
636da744 | 605 | /* Get the string length of an array constructor. */ |
b7e75771 | 606 | bool get_array_ctor_strlen (stmtblock_t *, gfc_constructor_base, tree *); |
636da744 | 607 | |
4f13e17f | 608 | /* Mark a condition as likely or unlikely. */ |
ed9c79e1 JJ |
609 | tree gfc_likely (tree, enum br_predictor); |
610 | tree gfc_unlikely (tree, enum br_predictor); | |
5af07930 | 611 | |
2b3dc0db PT |
612 | /* Return the string length of a deferred character length component. */ |
613 | bool gfc_deferred_strlen (gfc_component *, tree *); | |
614 | ||
f25a62a5 DK |
615 | /* Generate a runtime error call. */ |
616 | tree gfc_trans_runtime_error (bool, locus*, const char*, ...); | |
f25a62a5 | 617 | |
0d52899f TB |
618 | /* Generate a runtime warning/error check. */ |
619 | void gfc_trans_runtime_check (bool, bool, tree, stmtblock_t *, locus *, | |
620 | const char *, ...); | |
6de9cd9a | 621 | |
fb5bc08b DK |
622 | /* Generate a runtime check for same string length. */ |
623 | void gfc_trans_same_strlen_check (const char*, locus*, tree, tree, | |
624 | stmtblock_t*); | |
625 | ||
1529b8d9 FXC |
626 | /* Generate a call to free() after checking that its arg is non-NULL. */ |
627 | tree gfc_call_free (tree); | |
628 | ||
629 | /* Allocate memory after performing a few checks. */ | |
630 | tree gfc_call_malloc (stmtblock_t *, tree, tree); | |
631 | ||
12f681a0 DK |
632 | /* Build a memcpy call. */ |
633 | tree gfc_build_memcpy_call (tree, tree, tree); | |
634 | ||
ea6363a3 | 635 | /* Allocate memory for allocatable variables, with optional status variable. */ |
5d81ddd0 | 636 | void gfc_allocate_allocatable (stmtblock_t*, tree, tree, tree, tree, |
8f992d64 | 637 | tree, tree, tree, gfc_expr*); |
4376b7cf FXC |
638 | |
639 | /* Allocate memory, with optional status variable. */ | |
4f13e17f | 640 | void gfc_allocate_using_malloc (stmtblock_t *, tree, tree, tree); |
4376b7cf FXC |
641 | |
642 | /* Generate code to deallocate an array. */ | |
5d81ddd0 TB |
643 | tree gfc_deallocate_with_status (tree, tree, tree, tree, tree, bool, |
644 | gfc_expr *, bool); | |
2c807128 | 645 | tree gfc_deallocate_scalar_with_status (tree, tree, bool, gfc_expr*, gfc_typespec); |
4376b7cf FXC |
646 | |
647 | /* Generate code to call realloc(). */ | |
648 | tree gfc_call_realloc (stmtblock_t *, tree, tree); | |
649 | ||
1f2959f0 | 650 | /* Generate code for an assignment, includes scalarization. */ |
2b56d6a4 | 651 | tree gfc_trans_assignment (gfc_expr *, gfc_expr *, bool, bool); |
6de9cd9a | 652 | |
49de9e73 | 653 | /* Generate code for a pointer assignment. */ |
6de9cd9a DN |
654 | tree gfc_trans_pointer_assignment (gfc_expr *, gfc_expr *); |
655 | ||
656 | /* Initialize function decls for library functions. */ | |
657 | void gfc_build_intrinsic_lib_fndecls (void); | |
658 | /* Create function decls for IO library functions. */ | |
659 | void gfc_build_io_library_fndecls (void); | |
660 | /* Build a function decl for a library function. */ | |
661 | tree gfc_build_library_function_decl (tree, tree, int, ...); | |
3f34855a TB |
662 | tree gfc_build_library_function_decl_with_spec (tree name, const char *spec, |
663 | tree rettype, int nargs, ...); | |
6de9cd9a | 664 | |
9abe5e56 | 665 | /* Process the local variable decls of a block construct. */ |
6312ef45 | 666 | void gfc_process_block_locals (gfc_namespace*); |
9abe5e56 DK |
667 | |
668 | /* Output initialization/clean-up code that was deferred. */ | |
d74d8807 | 669 | void gfc_trans_deferred_vars (gfc_symbol*, gfc_wrapped_block *); |
9abe5e56 | 670 | |
fb55ca75 | 671 | /* In f95-lang.c. */ |
6de9cd9a DN |
672 | tree pushdecl (tree); |
673 | tree pushdecl_top_level (tree); | |
87a60f68 SB |
674 | void pushlevel (void); |
675 | tree poplevel (int, int); | |
6de9cd9a | 676 | tree getdecls (void); |
fb55ca75 TB |
677 | |
678 | /* In trans-types.c. */ | |
fad0afd7 JJ |
679 | struct array_descr_info; |
680 | bool gfc_get_array_descr_info (const_tree, struct array_descr_info *); | |
6de9cd9a | 681 | |
6c7a4dfd | 682 | /* In trans-openmp.c */ |
58f9752a | 683 | bool gfc_omp_privatize_by_reference (const_tree); |
6c7a4dfd | 684 | enum omp_clause_default_kind gfc_omp_predetermined_sharing (tree); |
79943d19 | 685 | tree gfc_omp_report_decl (tree); |
a68ab351 JJ |
686 | tree gfc_omp_clause_default_ctor (tree, tree, tree); |
687 | tree gfc_omp_clause_copy_ctor (tree, tree, tree); | |
688 | tree gfc_omp_clause_assign_op (tree, tree, tree); | |
da6f124d | 689 | tree gfc_omp_clause_linear_ctor (tree, tree, tree, tree); |
a68ab351 | 690 | tree gfc_omp_clause_dtor (tree, tree); |
f014c653 | 691 | void gfc_omp_finish_clause (tree, gimple_seq *); |
6c7a4dfd JJ |
692 | bool gfc_omp_disregard_value_expr (tree, bool); |
693 | bool gfc_omp_private_debug_clause (tree, bool); | |
a68ab351 | 694 | bool gfc_omp_private_outer_ref (tree); |
6c7a4dfd JJ |
695 | struct gimplify_omp_ctx; |
696 | void gfc_omp_firstprivatize_type_sizes (struct gimplify_omp_ctx *, tree); | |
697 | ||
6de9cd9a | 698 | /* Runtime library function decls. */ |
6de9cd9a DN |
699 | extern GTY(()) tree gfor_fndecl_pause_numeric; |
700 | extern GTY(()) tree gfor_fndecl_pause_string; | |
701 | extern GTY(()) tree gfor_fndecl_stop_numeric; | |
cea59ace | 702 | extern GTY(()) tree gfor_fndecl_stop_numeric_f08; |
6de9cd9a | 703 | extern GTY(()) tree gfor_fndecl_stop_string; |
6d1b0f92 | 704 | extern GTY(()) tree gfor_fndecl_error_stop_numeric; |
d0a4a61c | 705 | extern GTY(()) tree gfor_fndecl_error_stop_string; |
6de9cd9a | 706 | extern GTY(()) tree gfor_fndecl_runtime_error; |
f96d606f | 707 | extern GTY(()) tree gfor_fndecl_runtime_error_at; |
0d52899f | 708 | extern GTY(()) tree gfor_fndecl_runtime_warning_at; |
1529b8d9 | 709 | extern GTY(()) tree gfor_fndecl_os_error; |
f96d606f | 710 | extern GTY(()) tree gfor_fndecl_generate_error; |
944b8b35 | 711 | extern GTY(()) tree gfor_fndecl_set_fpe; |
68d2e027 | 712 | extern GTY(()) tree gfor_fndecl_set_options; |
25fc05eb | 713 | extern GTY(()) tree gfor_fndecl_ttynam; |
35059811 FXC |
714 | extern GTY(()) tree gfor_fndecl_ctime; |
715 | extern GTY(()) tree gfor_fndecl_fdate; | |
6de9cd9a DN |
716 | extern GTY(()) tree gfor_fndecl_in_pack; |
717 | extern GTY(()) tree gfor_fndecl_in_unpack; | |
718 | extern GTY(()) tree gfor_fndecl_associated; | |
a416c4c7 FXC |
719 | extern GTY(()) tree gfor_fndecl_system_clock4; |
720 | extern GTY(()) tree gfor_fndecl_system_clock8; | |
6de9cd9a | 721 | |
60386f50 TB |
722 | |
723 | /* Coarray run-time library function decls. */ | |
724 | extern GTY(()) tree gfor_fndecl_caf_init; | |
725 | extern GTY(()) tree gfor_fndecl_caf_finalize; | |
a8a5f4a9 TB |
726 | extern GTY(()) tree gfor_fndecl_caf_this_image; |
727 | extern GTY(()) tree gfor_fndecl_caf_num_images; | |
b8ff4e88 | 728 | extern GTY(()) tree gfor_fndecl_caf_register; |
5d81ddd0 | 729 | extern GTY(()) tree gfor_fndecl_caf_deregister; |
b5116268 TB |
730 | extern GTY(()) tree gfor_fndecl_caf_get; |
731 | extern GTY(()) tree gfor_fndecl_caf_send; | |
732 | extern GTY(()) tree gfor_fndecl_caf_sendget; | |
60386f50 | 733 | extern GTY(()) tree gfor_fndecl_caf_sync_all; |
9315dff0 | 734 | extern GTY(()) tree gfor_fndecl_caf_sync_memory; |
60386f50 TB |
735 | extern GTY(()) tree gfor_fndecl_caf_sync_images; |
736 | extern GTY(()) tree gfor_fndecl_caf_error_stop; | |
737 | extern GTY(()) tree gfor_fndecl_caf_error_stop_str; | |
42a8246d TB |
738 | extern GTY(()) tree gfor_fndecl_caf_atomic_def; |
739 | extern GTY(()) tree gfor_fndecl_caf_atomic_ref; | |
740 | extern GTY(()) tree gfor_fndecl_caf_atomic_cas; | |
741 | extern GTY(()) tree gfor_fndecl_caf_atomic_op; | |
bc0229f9 TB |
742 | extern GTY(()) tree gfor_fndecl_caf_lock; |
743 | extern GTY(()) tree gfor_fndecl_caf_unlock; | |
a16ee379 | 744 | extern GTY(()) tree gfor_fndecl_co_broadcast; |
d62cf3df TB |
745 | extern GTY(()) tree gfor_fndecl_co_max; |
746 | extern GTY(()) tree gfor_fndecl_co_min; | |
229c5919 | 747 | extern GTY(()) tree gfor_fndecl_co_reduce; |
d62cf3df | 748 | extern GTY(()) tree gfor_fndecl_co_sum; |
60386f50 | 749 | |
60386f50 | 750 | |
6de9cd9a DN |
751 | /* Math functions. Many other math functions are handled in |
752 | trans-intrinsic.c. */ | |
5b200ac2 | 753 | |
d1b38208 | 754 | typedef struct GTY(()) gfc_powdecl_list { |
5b200ac2 FW |
755 | tree integer; |
756 | tree real; | |
757 | tree cmplx; | |
758 | } | |
759 | gfc_powdecl_list; | |
760 | ||
644cb69f | 761 | extern GTY(()) gfc_powdecl_list gfor_fndecl_math_powi[4][3]; |
6de9cd9a DN |
762 | extern GTY(()) tree gfor_fndecl_math_ishftc4; |
763 | extern GTY(()) tree gfor_fndecl_math_ishftc8; | |
644cb69f | 764 | extern GTY(()) tree gfor_fndecl_math_ishftc16; |
6de9cd9a | 765 | |
5a0aad31 FXC |
766 | /* BLAS functions. */ |
767 | extern GTY(()) tree gfor_fndecl_sgemm; | |
768 | extern GTY(()) tree gfor_fndecl_dgemm; | |
769 | extern GTY(()) tree gfor_fndecl_cgemm; | |
770 | extern GTY(()) tree gfor_fndecl_zgemm; | |
771 | ||
6de9cd9a | 772 | /* String functions. */ |
6de9cd9a DN |
773 | extern GTY(()) tree gfor_fndecl_compare_string; |
774 | extern GTY(()) tree gfor_fndecl_concat_string; | |
775 | extern GTY(()) tree gfor_fndecl_string_len_trim; | |
776 | extern GTY(()) tree gfor_fndecl_string_index; | |
777 | extern GTY(()) tree gfor_fndecl_string_scan; | |
778 | extern GTY(()) tree gfor_fndecl_string_verify; | |
779 | extern GTY(()) tree gfor_fndecl_string_trim; | |
2263c775 | 780 | extern GTY(()) tree gfor_fndecl_string_minmax; |
6de9cd9a DN |
781 | extern GTY(()) tree gfor_fndecl_adjustl; |
782 | extern GTY(()) tree gfor_fndecl_adjustr; | |
d393bbd7 | 783 | extern GTY(()) tree gfor_fndecl_select_string; |
374929b2 FXC |
784 | extern GTY(()) tree gfor_fndecl_compare_string_char4; |
785 | extern GTY(()) tree gfor_fndecl_concat_string_char4; | |
786 | extern GTY(()) tree gfor_fndecl_string_len_trim_char4; | |
787 | extern GTY(()) tree gfor_fndecl_string_index_char4; | |
788 | extern GTY(()) tree gfor_fndecl_string_scan_char4; | |
789 | extern GTY(()) tree gfor_fndecl_string_verify_char4; | |
790 | extern GTY(()) tree gfor_fndecl_string_trim_char4; | |
791 | extern GTY(()) tree gfor_fndecl_string_minmax_char4; | |
792 | extern GTY(()) tree gfor_fndecl_adjustl_char4; | |
793 | extern GTY(()) tree gfor_fndecl_adjustr_char4; | |
d393bbd7 FXC |
794 | extern GTY(()) tree gfor_fndecl_select_string_char4; |
795 | ||
796 | /* Conversion between character kinds. */ | |
797 | extern GTY(()) tree gfor_fndecl_convert_char1_to_char4; | |
798 | extern GTY(()) tree gfor_fndecl_convert_char4_to_char1; | |
6de9cd9a DN |
799 | |
800 | /* Other misc. runtime library functions. */ | |
801 | extern GTY(()) tree gfor_fndecl_size0; | |
802 | extern GTY(()) tree gfor_fndecl_size1; | |
b41b2534 | 803 | extern GTY(()) tree gfor_fndecl_iargc; |
6de9cd9a | 804 | |
a39fafac FXC |
805 | /* Implemented in Fortran. */ |
806 | extern GTY(()) tree gfor_fndecl_sc_kind; | |
6de9cd9a DN |
807 | extern GTY(()) tree gfor_fndecl_si_kind; |
808 | extern GTY(()) tree gfor_fndecl_sr_kind; | |
809 | ||
3b7ea188 FXC |
810 | /* IEEE-related. */ |
811 | extern GTY(()) tree gfor_fndecl_ieee_procedure_entry; | |
812 | extern GTY(()) tree gfor_fndecl_ieee_procedure_exit; | |
813 | ||
6de9cd9a DN |
814 | |
815 | /* True if node is an integer constant. */ | |
816 | #define INTEGER_CST_P(node) (TREE_CODE(node) == INTEGER_CST) | |
817 | ||
fe4e525c TB |
818 | /* gfortran-specific declaration information, the _CONT versions denote |
819 | arrays with CONTIGUOUS attribute. */ | |
6de9cd9a | 820 | |
fad0afd7 JJ |
821 | enum gfc_array_kind |
822 | { | |
823 | GFC_ARRAY_UNKNOWN, | |
824 | GFC_ARRAY_ASSUMED_SHAPE, | |
fe4e525c | 825 | GFC_ARRAY_ASSUMED_SHAPE_CONT, |
c62c6622 TB |
826 | GFC_ARRAY_ASSUMED_RANK, |
827 | GFC_ARRAY_ASSUMED_RANK_CONT, | |
fad0afd7 | 828 | GFC_ARRAY_ALLOCATABLE, |
fe4e525c TB |
829 | GFC_ARRAY_POINTER, |
830 | GFC_ARRAY_POINTER_CONT | |
fad0afd7 JJ |
831 | }; |
832 | ||
6de9cd9a | 833 | /* Array types only. */ |
766090c2 | 834 | struct GTY(()) lang_type { |
a3935ffc | 835 | int rank, corank; |
fad0afd7 | 836 | enum gfc_array_kind akind; |
6de9cd9a DN |
837 | tree lbound[GFC_MAX_DIMENSIONS]; |
838 | tree ubound[GFC_MAX_DIMENSIONS]; | |
839 | tree stride[GFC_MAX_DIMENSIONS]; | |
840 | tree size; | |
841 | tree offset; | |
842 | tree dtype; | |
843 | tree dataptr_type; | |
de870512 | 844 | tree span; |
d560566a | 845 | tree base_decl[2]; |
b3c1b8a1 | 846 | tree nonrestricted_type; |
b8ff4e88 | 847 | tree caf_token; |
0c53708e | 848 | tree caf_offset; |
6de9cd9a DN |
849 | }; |
850 | ||
766090c2 | 851 | struct GTY(()) lang_decl { |
6de9cd9a DN |
852 | /* Dummy variables. */ |
853 | tree saved_descriptor; | |
854 | /* Assigned integer nodes. Stringlength is the IO format string's length. | |
855 | Addr is the address of the string or the target label. Stringlength is | |
1f2959f0 | 856 | initialized to -2 and assigned to -1 when addr is assigned to the |
6de9cd9a DN |
857 | address of target label. */ |
858 | tree stringlen; | |
859 | tree addr; | |
1d6b7f39 | 860 | tree span; |
aa13dc3c TB |
861 | /* For assumed-shape coarrays. */ |
862 | tree token, caf_offset; | |
92d28cbb JJ |
863 | unsigned int scalar_allocatable : 1; |
864 | unsigned int scalar_pointer : 1; | |
6de9cd9a DN |
865 | }; |
866 | ||
867 | ||
868 | #define GFC_DECL_ASSIGN_ADDR(node) DECL_LANG_SPECIFIC(node)->addr | |
869 | #define GFC_DECL_STRING_LEN(node) DECL_LANG_SPECIFIC(node)->stringlen | |
1d6b7f39 | 870 | #define GFC_DECL_SPAN(node) DECL_LANG_SPECIFIC(node)->span |
aa13dc3c TB |
871 | #define GFC_DECL_TOKEN(node) DECL_LANG_SPECIFIC(node)->token |
872 | #define GFC_DECL_CAF_OFFSET(node) DECL_LANG_SPECIFIC(node)->caf_offset | |
6de9cd9a DN |
873 | #define GFC_DECL_SAVED_DESCRIPTOR(node) \ |
874 | (DECL_LANG_SPECIFIC(node)->saved_descriptor) | |
92d28cbb JJ |
875 | #define GFC_DECL_SCALAR_ALLOCATABLE(node) \ |
876 | (DECL_LANG_SPECIFIC (node)->scalar_allocatable) | |
877 | #define GFC_DECL_SCALAR_POINTER(node) \ | |
878 | (DECL_LANG_SPECIFIC (node)->scalar_pointer) | |
879 | #define GFC_DECL_GET_SCALAR_ALLOCATABLE(node) \ | |
880 | (DECL_LANG_SPECIFIC (node) ? GFC_DECL_SCALAR_ALLOCATABLE (node) : 0) | |
881 | #define GFC_DECL_GET_SCALAR_POINTER(node) \ | |
882 | (DECL_LANG_SPECIFIC (node) ? GFC_DECL_SCALAR_POINTER (node) : 0) | |
6de9cd9a DN |
883 | #define GFC_DECL_PACKED_ARRAY(node) DECL_LANG_FLAG_0(node) |
884 | #define GFC_DECL_PARTIAL_PACKED_ARRAY(node) DECL_LANG_FLAG_1(node) | |
885 | #define GFC_DECL_ASSIGN(node) DECL_LANG_FLAG_2(node) | |
6c7a4dfd JJ |
886 | #define GFC_DECL_COMMON_OR_EQUIV(node) DECL_LANG_FLAG_3(node) |
887 | #define GFC_DECL_CRAY_POINTEE(node) DECL_LANG_FLAG_4(node) | |
888 | #define GFC_DECL_RESULT(node) DECL_LANG_FLAG_5(node) | |
1d6b7f39 | 889 | #define GFC_DECL_SUBREF_ARRAY_P(node) DECL_LANG_FLAG_6(node) |
92d28cbb | 890 | #define GFC_DECL_ASSOCIATE_VAR_P(node) DECL_LANG_FLAG_7(node) |
c49ea23d | 891 | #define GFC_DECL_CLASS(node) DECL_LANG_FLAG_8(node) |
6de9cd9a DN |
892 | |
893 | /* An array descriptor. */ | |
894 | #define GFC_DESCRIPTOR_TYPE_P(node) TYPE_LANG_FLAG_1(node) | |
895 | /* An array without a descriptor. */ | |
896 | #define GFC_ARRAY_TYPE_P(node) TYPE_LANG_FLAG_2(node) | |
8f75db9f PT |
897 | /* Fortran CLASS type. */ |
898 | #define GFC_CLASS_TYPE_P(node) TYPE_LANG_FLAG_4(node) | |
6de9cd9a DN |
899 | /* The GFC_TYPE_ARRAY_* members are present in both descriptor and |
900 | descriptorless array types. */ | |
901 | #define GFC_TYPE_ARRAY_LBOUND(node, dim) \ | |
902 | (TYPE_LANG_SPECIFIC(node)->lbound[dim]) | |
903 | #define GFC_TYPE_ARRAY_UBOUND(node, dim) \ | |
904 | (TYPE_LANG_SPECIFIC(node)->ubound[dim]) | |
905 | #define GFC_TYPE_ARRAY_STRIDE(node, dim) \ | |
906 | (TYPE_LANG_SPECIFIC(node)->stride[dim]) | |
907 | #define GFC_TYPE_ARRAY_RANK(node) (TYPE_LANG_SPECIFIC(node)->rank) | |
a3935ffc | 908 | #define GFC_TYPE_ARRAY_CORANK(node) (TYPE_LANG_SPECIFIC(node)->corank) |
b8ff4e88 | 909 | #define GFC_TYPE_ARRAY_CAF_TOKEN(node) (TYPE_LANG_SPECIFIC(node)->caf_token) |
0c53708e | 910 | #define GFC_TYPE_ARRAY_CAF_OFFSET(node) (TYPE_LANG_SPECIFIC(node)->caf_offset) |
6de9cd9a DN |
911 | #define GFC_TYPE_ARRAY_SIZE(node) (TYPE_LANG_SPECIFIC(node)->size) |
912 | #define GFC_TYPE_ARRAY_OFFSET(node) (TYPE_LANG_SPECIFIC(node)->offset) | |
fad0afd7 | 913 | #define GFC_TYPE_ARRAY_AKIND(node) (TYPE_LANG_SPECIFIC(node)->akind) |
df2fba9e | 914 | /* Code should use gfc_get_dtype instead of accessing this directly. It may |
40b026d8 | 915 | not be known when the type is created. */ |
6de9cd9a DN |
916 | #define GFC_TYPE_ARRAY_DTYPE(node) (TYPE_LANG_SPECIFIC(node)->dtype) |
917 | #define GFC_TYPE_ARRAY_DATAPTR_TYPE(node) \ | |
918 | (TYPE_LANG_SPECIFIC(node)->dataptr_type) | |
de870512 | 919 | #define GFC_TYPE_ARRAY_SPAN(node) (TYPE_LANG_SPECIFIC(node)->span) |
d560566a AO |
920 | #define GFC_TYPE_ARRAY_BASE_DECL(node, internal) \ |
921 | (TYPE_LANG_SPECIFIC(node)->base_decl[(internal)]) | |
6de9cd9a | 922 | |
5d44e5c8 | 923 | |
6de9cd9a | 924 | /* Build an expression with void type. */ |
5d44e5c8 TB |
925 | #define build1_v(code, arg) \ |
926 | fold_build1_loc (input_location, code, void_type_node, arg) | |
927 | #define build2_v(code, arg1, arg2) \ | |
928 | fold_build2_loc (input_location, code, void_type_node, arg1, arg2) | |
929 | #define build3_v(code, arg1, arg2, arg3) \ | |
930 | fold_build3_loc (input_location, code, void_type_node, arg1, arg2, arg3) | |
931 | #define build4_v(code, arg1, arg2, arg3, arg4) \ | |
932 | build4_loc (input_location, code, void_type_node, arg1, arg2, \ | |
933 | arg3, arg4) | |
62ab4a54 RS |
934 | |
935 | /* This group of functions allows a caller to evaluate an expression from | |
936 | the callee's interface. It establishes a mapping between the interface's | |
937 | dummy arguments and the caller's actual arguments, then applies that | |
938 | mapping to a given gfc_expr. | |
939 | ||
940 | You can initialize a mapping structure like so: | |
941 | ||
942 | gfc_interface_mapping mapping; | |
943 | ... | |
944 | gfc_init_interface_mapping (&mapping); | |
945 | ||
946 | You should then evaluate each actual argument into a temporary | |
947 | gfc_se structure, here called "se", and map the result to the | |
948 | dummy argument's symbol, here called "sym": | |
949 | ||
950 | gfc_add_interface_mapping (&mapping, sym, &se); | |
951 | ||
952 | After adding all mappings, you should call: | |
953 | ||
954 | gfc_finish_interface_mapping (&mapping, pre, post); | |
955 | ||
956 | where "pre" and "post" are statement blocks for initialization | |
957 | and finalization code respectively. You can then evaluate an | |
958 | interface expression "expr" as follows: | |
959 | ||
960 | gfc_apply_interface_mapping (&mapping, se, expr); | |
961 | ||
962 | Once you've evaluated all expressions, you should free | |
963 | the mapping structure with: | |
964 | ||
965 | gfc_free_interface_mapping (&mapping); */ | |
966 | ||
967 | ||
968 | /* This structure represents a mapping from OLD to NEW, where OLD is a | |
969 | dummy argument symbol and NEW is a symbol that represents the value | |
970 | of an actual argument. Mappings are linked together using NEXT | |
971 | (in no particular order). */ | |
972 | typedef struct gfc_interface_sym_mapping | |
973 | { | |
974 | struct gfc_interface_sym_mapping *next; | |
975 | gfc_symbol *old; | |
7b901ac4 | 976 | gfc_symtree *new_sym; |
0a164a3c | 977 | gfc_expr *expr; |
62ab4a54 RS |
978 | } |
979 | gfc_interface_sym_mapping; | |
980 | ||
981 | ||
982 | /* This structure is used by callers to evaluate an expression from | |
983 | a callee's interface. */ | |
984 | typedef struct gfc_interface_mapping | |
985 | { | |
986 | /* Maps the interface's dummy arguments to the values that the caller | |
987 | is passing. The whole list is owned by this gfc_interface_mapping. */ | |
988 | gfc_interface_sym_mapping *syms; | |
989 | ||
990 | /* A list of gfc_charlens that were needed when creating copies of | |
991 | expressions. The whole list is owned by this gfc_interface_mapping. */ | |
992 | gfc_charlen *charlens; | |
993 | } | |
994 | gfc_interface_mapping; | |
995 | ||
996 | void gfc_init_interface_mapping (gfc_interface_mapping *); | |
997 | void gfc_free_interface_mapping (gfc_interface_mapping *); | |
998 | void gfc_add_interface_mapping (gfc_interface_mapping *, | |
0a164a3c | 999 | gfc_symbol *, gfc_se *, gfc_expr *); |
62ab4a54 RS |
1000 | void gfc_finish_interface_mapping (gfc_interface_mapping *, |
1001 | stmtblock_t *, stmtblock_t *); | |
1002 | void gfc_apply_interface_mapping (gfc_interface_mapping *, | |
1003 | gfc_se *, gfc_expr *); | |
1004 | ||
dd18a33b FXC |
1005 | |
1006 | /* Standard error messages used in all the trans-*.c files. */ | |
7e49f965 TS |
1007 | extern const char gfc_msg_fault[]; |
1008 | extern const char gfc_msg_wrong_return[]; | |
dd18a33b | 1009 | |
34d01e1d VL |
1010 | #define OMPWS_WORKSHARE_FLAG 1 /* Set if in a workshare construct. */ |
1011 | #define OMPWS_CURR_SINGLEUNIT 2 /* Set if current gfc_code in workshare | |
1012 | construct is not workshared. */ | |
1013 | #define OMPWS_SCALARIZER_WS 4 /* Set if scalarizer should attempt | |
1014 | to create parallel loops. */ | |
1015 | #define OMPWS_NOWAIT 8 /* Use NOWAIT on OMP_FOR. */ | |
1016 | extern int ompws_flags; | |
dd18a33b | 1017 | |
6de9cd9a | 1018 | #endif /* GFC_TRANS_H */ |