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6de9cd9a | 1 | /* Header for code translation functions |
fa502cb2 | 2 | Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
34d01e1d | 3 | Free Software Foundation, Inc. |
6de9cd9a DN |
4 | Contributed by Paul Brook |
5 | ||
9fc4d79b | 6 | This file is part of GCC. |
6de9cd9a | 7 | |
9fc4d79b TS |
8 | GCC is free software; you can redistribute it and/or modify it under |
9 | the terms of the GNU General Public License as published by the Free | |
d234d788 | 10 | Software Foundation; either version 3, or (at your option) any later |
9fc4d79b | 11 | version. |
6de9cd9a | 12 | |
9fc4d79b TS |
13 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
14 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
15 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
16 | for more details. | |
6de9cd9a DN |
17 | |
18 | You should have received a copy of the GNU General Public License | |
d234d788 NC |
19 | along with GCC; see the file COPYING3. If not see |
20 | <http://www.gnu.org/licenses/>. */ | |
6de9cd9a DN |
21 | |
22 | #ifndef GFC_TRANS_H | |
23 | #define GFC_TRANS_H | |
24 | ||
25 | /* Mangled symbols take the form __module__name. */ | |
26 | #define GFC_MAX_MANGLED_SYMBOL_LEN (GFC_MAX_SYMBOL_LEN*2+4) | |
27 | ||
28 | /* Struct for holding a block of statements. It should be treated as an | |
29 | opaque entity and not modified directly. This allows us to change the | |
30 | underlying representation of statement lists. */ | |
31 | typedef struct | |
32 | { | |
33 | tree head; | |
b40410b9 | 34 | unsigned int has_scope:1; |
6de9cd9a DN |
35 | } |
36 | stmtblock_t; | |
37 | ||
1f2959f0 | 38 | /* a simplified expression */ |
6de9cd9a DN |
39 | typedef struct gfc_se |
40 | { | |
41 | /* Code blocks to be executed before and after using the value. */ | |
42 | stmtblock_t pre; | |
43 | stmtblock_t post; | |
44 | ||
45 | /* the result of the expression */ | |
46 | tree expr; | |
47 | ||
48 | /* The length of a character string value. */ | |
49 | tree string_length; | |
50 | ||
51 | /* If set gfc_conv_variable will return an expression for the array | |
52 | descriptor. When set, want_pointer should also be set. | |
53 | If not set scalarizing variables will be substituted. */ | |
54 | unsigned descriptor_only:1; | |
55 | ||
56 | /* When this is set gfc_conv_expr returns the address of a variable. Only | |
57 | applies to EXPR_VARIABLE nodes. | |
58 | Also used by gfc_conv_array_parameter. When set this indicates a pointer | |
59 | to the descriptor should be returned, rather than the descriptor itself. | |
60 | */ | |
61 | unsigned want_pointer:1; | |
62 | ||
63 | /* An array function call returning without a temporary. Also used for array | |
64 | pointer assignments. */ | |
65 | unsigned direct_byref:1; | |
66 | ||
67 | /* Ignore absent optional arguments. Used for some intrinsics. */ | |
68 | unsigned ignore_optional:1; | |
69 | ||
ad5dd90d PT |
70 | /* When this is set the data and offset fields of the returned descriptor |
71 | are NULL. Used by intrinsic size. */ | |
72 | unsigned data_not_needed:1; | |
73 | ||
713485cc | 74 | /* If set, gfc_conv_procedure_call does not put byref calls into se->pre. */ |
0ee8e250 PT |
75 | unsigned no_function_call:1; |
76 | ||
6de9cd9a DN |
77 | /* Scalarization parameters. */ |
78 | struct gfc_se *parent; | |
79 | struct gfc_ss *ss; | |
80 | struct gfc_loopinfo *loop; | |
81 | } | |
82 | gfc_se; | |
83 | ||
84 | ||
e7dc5b4f | 85 | /* Scalarization State chain. Created by walking an expression tree before |
6de9cd9a DN |
86 | creating the scalarization loops. Then passed as part of a gfc_se structure |
87 | to translate the expression inside the loop. Note that these chains are | |
88 | terminated by gfc_se_terminator, not NULL. A NULL pointer in a gfc_se | |
89 | indicates to gfc_conv_* that this is a scalar expression. | |
90 | Note that some member arrays correspond to scalarizer rank and others | |
91 | are the variable rank. */ | |
92 | ||
93 | typedef struct gfc_ss_info | |
94 | { | |
95 | int dimen; | |
96 | /* The ref that holds information on this section. */ | |
97 | gfc_ref *ref; | |
98 | /* The descriptor of this array. */ | |
99 | tree descriptor; | |
100 | /* holds the pointer to the data array. */ | |
101 | tree data; | |
102 | /* To move some of the array index calculation out of the innermost loop. */ | |
103 | tree offset; | |
104 | tree saved_offset; | |
105 | tree stride0; | |
106 | /* Holds the SS for a subscript. Indexed by actual dimension. */ | |
107 | struct gfc_ss *subscript[GFC_MAX_DIMENSIONS]; | |
108 | ||
109 | /* stride and delta are used to access this inside a scalarization loop. | |
110 | start is used in the calculation of these. Indexed by scalarizer | |
111 | dimension. */ | |
112 | tree start[GFC_MAX_DIMENSIONS]; | |
8424e0d8 | 113 | tree end[GFC_MAX_DIMENSIONS]; |
6de9cd9a DN |
114 | tree stride[GFC_MAX_DIMENSIONS]; |
115 | tree delta[GFC_MAX_DIMENSIONS]; | |
116 | ||
e7dc5b4f | 117 | /* Translation from scalarizer dimensions to actual dimensions. |
6de9cd9a DN |
118 | actual = dim[scalarizer] */ |
119 | int dim[GFC_MAX_DIMENSIONS]; | |
120 | } | |
121 | gfc_ss_info; | |
122 | ||
123 | typedef enum | |
124 | { | |
125 | /* A scalar value. This will be evaluated before entering the | |
126 | scalarization loop. */ | |
127 | GFC_SS_SCALAR, | |
128 | ||
2054fc29 | 129 | /* Like GFC_SS_SCALAR except it evaluates a pointer to the expression. |
6de9cd9a DN |
130 | Used for elemental function parameters. */ |
131 | GFC_SS_REFERENCE, | |
132 | ||
133 | /* An array section. Scalarization indices will be substituted during | |
134 | expression translation. */ | |
135 | GFC_SS_SECTION, | |
136 | ||
137 | /* A non-elemental function call returning an array. The call is executed | |
138 | before entering the scalarization loop, storing the result in a | |
139 | temporary. This temporary is then used inside the scalarization loop. | |
df2fba9e | 140 | Simple assignments, e.g. a(:) = fn(), are handled without a temporary |
6de9cd9a DN |
141 | as a special case. */ |
142 | GFC_SS_FUNCTION, | |
143 | ||
144 | /* An array constructor. The current implementation is sub-optimal in | |
145 | many cases. It allocated a temporary, assigns the values to it, then | |
146 | uses this temporary inside the scalarization loop. */ | |
147 | GFC_SS_CONSTRUCTOR, | |
148 | ||
7a70c12d RS |
149 | /* A vector subscript. The vector's descriptor is cached in the |
150 | "descriptor" field of the associated gfc_ss_info. */ | |
6de9cd9a DN |
151 | GFC_SS_VECTOR, |
152 | ||
153 | /* A temporary array allocated by the scalarizer. Its rank can be less | |
154 | than that of the assignment expression. */ | |
155 | GFC_SS_TEMP, | |
156 | ||
157 | /* An intrinsic function call. Many intrinsic functions which map directly | |
158 | to library calls are created as GFC_SS_FUNCTION nodes. */ | |
e9cfef64 PB |
159 | GFC_SS_INTRINSIC, |
160 | ||
161 | /* A component of a derived type. */ | |
162 | GFC_SS_COMPONENT | |
6de9cd9a DN |
163 | } |
164 | gfc_ss_type; | |
165 | ||
166 | /* SS structures can only belong to a single loopinfo. They must be added | |
167 | otherwise they will not get freed. */ | |
168 | typedef struct gfc_ss | |
169 | { | |
170 | gfc_ss_type type; | |
171 | gfc_expr *expr; | |
e9cfef64 | 172 | mpz_t *shape; |
40f20186 | 173 | tree string_length; |
6de9cd9a DN |
174 | union |
175 | { | |
176 | /* If type is GFC_SS_SCALAR or GFC_SS_REFERENCE. */ | |
177 | struct | |
178 | { | |
179 | tree expr; | |
6de9cd9a DN |
180 | } |
181 | scalar; | |
182 | ||
183 | /* GFC_SS_TEMP. */ | |
184 | struct | |
185 | { | |
186 | /* The rank of the temporary. May be less than the rank of the | |
187 | assigned expression. */ | |
188 | int dimen; | |
189 | tree type; | |
6de9cd9a DN |
190 | } |
191 | temp; | |
192 | /* All other types. */ | |
193 | gfc_ss_info info; | |
194 | } | |
195 | data; | |
196 | ||
197 | /* All the SS in a loop and linked through loop_chain. The SS for an | |
198 | expression are linked by the next pointer. */ | |
199 | struct gfc_ss *loop_chain; | |
200 | struct gfc_ss *next; | |
201 | ||
e7dc5b4f | 202 | /* This is used by assignments requiring temporaries. The bits specify which |
6de9cd9a | 203 | loops the terms appear in. This will be 1 for the RHS expressions, |
ae772c2d PT |
204 | 2 for the LHS expressions, and 3(=1|2) for the temporary. The bit |
205 | 'where' suppresses precalculation of scalars in WHERE assignments. */ | |
206 | unsigned useflags:2, where:1; | |
6de9cd9a DN |
207 | } |
208 | gfc_ss; | |
ece3f663 | 209 | #define gfc_get_ss() XCNEW (gfc_ss) |
6de9cd9a | 210 | |
1f2959f0 | 211 | /* The contents of this aren't actually used. A NULL SS chain indicates a |
6de9cd9a DN |
212 | scalar expression, so this pointer is used to terminate SS chains. */ |
213 | extern gfc_ss * const gfc_ss_terminator; | |
214 | ||
215 | /* Holds information about an expression while it is being scalarized. */ | |
216 | typedef struct gfc_loopinfo | |
217 | { | |
218 | stmtblock_t pre; | |
219 | stmtblock_t post; | |
220 | ||
221 | int dimen; | |
222 | ||
223 | /* All the SS involved with this loop. */ | |
224 | gfc_ss *ss; | |
e7dc5b4f | 225 | /* The SS describing the temporary used in an assignment. */ |
6de9cd9a DN |
226 | gfc_ss *temp_ss; |
227 | ||
228 | /* The scalarization loop index variables. */ | |
229 | tree loopvar[GFC_MAX_DIMENSIONS]; | |
230 | ||
231 | /* The bounds of the scalarization loops. */ | |
232 | tree from[GFC_MAX_DIMENSIONS]; | |
233 | tree to[GFC_MAX_DIMENSIONS]; | |
234 | gfc_ss *specloop[GFC_MAX_DIMENSIONS]; | |
235 | ||
236 | /* The code member contains the code for the body of the next outer loop. */ | |
237 | stmtblock_t code[GFC_MAX_DIMENSIONS]; | |
238 | ||
239 | /* Order in which the dimensions should be looped, innermost first. */ | |
240 | int order[GFC_MAX_DIMENSIONS]; | |
241 | ||
242 | /* The number of dimensions for which a temporary is used. */ | |
243 | int temp_dim; | |
244 | ||
245 | /* If set we don't need the loop variables. */ | |
246 | unsigned array_parameter:1; | |
247 | } | |
248 | gfc_loopinfo; | |
249 | ||
7b5b57b7 PB |
250 | |
251 | /* Information about a symbol that has been shadowed by a temporary. */ | |
252 | typedef struct | |
253 | { | |
254 | symbol_attribute attr; | |
255 | tree decl; | |
256 | } | |
257 | gfc_saved_var; | |
258 | ||
259 | ||
6de9cd9a DN |
260 | /* Advance the SS chain to the next term. */ |
261 | void gfc_advance_se_ss_chain (gfc_se *); | |
262 | ||
aa9c57ec KH |
263 | /* Call this to initialize a gfc_se structure before use |
264 | first parameter is structure to initialize, second is | |
6de9cd9a DN |
265 | parent to get scalarization data from, or NULL. */ |
266 | void gfc_init_se (gfc_se *, gfc_se *); | |
267 | ||
268 | /* Create an artificial variable decl and add it to the current scope. */ | |
269 | tree gfc_create_var (tree, const char *); | |
270 | /* Like above but doesn't add it to the current scope. */ | |
271 | tree gfc_create_var_np (tree, const char *); | |
272 | ||
273 | /* Store the result of an expression in a temp variable so it can be used | |
274 | repeatedly even if the original changes */ | |
275 | void gfc_make_safe_expr (gfc_se * se); | |
276 | ||
277 | /* Makes sure se is suitable for passing as a function string parameter. */ | |
278 | void gfc_conv_string_parameter (gfc_se * se); | |
279 | ||
0a821a92 | 280 | /* Compare two strings. */ |
374929b2 | 281 | tree gfc_build_compare_string (tree, tree, tree, tree, int); |
0a821a92 | 282 | |
6de9cd9a DN |
283 | /* Add an item to the end of TREE_LIST. */ |
284 | tree gfc_chainon_list (tree, tree); | |
285 | ||
13795658 | 286 | /* When using the gfc_conv_* make sure you understand what they do, i.e. |
69de3b83 | 287 | when a POST chain may be created, and what the returned expression may be |
6de9cd9a DN |
288 | used for. Note that character strings have special handling. This |
289 | should not be a problem as most statements/operations only deal with | |
a4f5cd44 PB |
290 | numeric/logical types. See the implementations in trans-expr.c |
291 | for details of the individual functions. */ | |
6de9cd9a | 292 | |
6de9cd9a | 293 | void gfc_conv_expr (gfc_se * se, gfc_expr * expr); |
6de9cd9a | 294 | void gfc_conv_expr_val (gfc_se * se, gfc_expr * expr); |
6de9cd9a | 295 | void gfc_conv_expr_lhs (gfc_se * se, gfc_expr * expr); |
6de9cd9a | 296 | void gfc_conv_expr_reference (gfc_se * se, gfc_expr *); |
6de9cd9a | 297 | void gfc_conv_expr_type (gfc_se * se, gfc_expr *, tree); |
a4f5cd44 | 298 | |
e032c2a1 CR |
299 | /* trans-expr.c */ |
300 | void gfc_conv_scalar_char_value (gfc_symbol *sym, gfc_se *se, gfc_expr **expr); | |
301 | ||
ce2df7c6 FW |
302 | /* Find the decl containing the auxiliary variables for assigned variables. */ |
303 | void gfc_conv_label_variable (gfc_se * se, gfc_expr * expr); | |
6de9cd9a DN |
304 | /* If the value is not constant, Create a temporary and copy the value. */ |
305 | tree gfc_evaluate_now (tree, stmtblock_t *); | |
306 | ||
307 | /* Intrinsic function handling. */ | |
308 | void gfc_conv_intrinsic_function (gfc_se *, gfc_expr *); | |
309 | ||
310 | /* Does an intrinsic map directly to an external library call. */ | |
311 | int gfc_is_intrinsic_libcall (gfc_expr *); | |
312 | ||
713485cc JW |
313 | /* Used to call ordinary functions/subroutines |
314 | and procedure pointer components. */ | |
315 | int gfc_conv_procedure_call (gfc_se *, gfc_symbol *, gfc_actual_arglist *, | |
316 | gfc_expr *, tree); | |
d4feb3d3 | 317 | |
430f2d1f | 318 | void gfc_conv_subref_array_arg (gfc_se *, gfc_expr *, int, sym_intent, bool); |
d4feb3d3 | 319 | |
6de9cd9a DN |
320 | /* gfc_trans_* shouldn't call push/poplevel, use gfc_push/pop_scope */ |
321 | ||
322 | /* Generate code for a scalar assignment. */ | |
5046aff5 | 323 | tree gfc_trans_scalar_assign (gfc_se *, gfc_se *, gfc_typespec, bool, bool); |
6de9cd9a DN |
324 | |
325 | /* Translate COMMON blocks. */ | |
326 | void gfc_trans_common (gfc_namespace *); | |
327 | ||
f7b529fa | 328 | /* Translate a derived type constructor. */ |
6de9cd9a DN |
329 | void gfc_conv_structure (gfc_se *, gfc_expr *, int); |
330 | ||
331 | /* Return an expression which determines if a dummy parameter is present. */ | |
332 | tree gfc_conv_expr_present (gfc_symbol *); | |
e15e9be3 | 333 | /* Convert a missing, dummy argument into a null or zero. */ |
be9c3c6e | 334 | void gfc_conv_missing_dummy (gfc_se *, gfc_expr *, gfc_typespec, int); |
6de9cd9a DN |
335 | |
336 | /* Generate code to allocate a string temporary. */ | |
337 | tree gfc_conv_string_tmp (gfc_se *, tree, tree); | |
ca2940c3 TS |
338 | /* Get the string length variable belonging to an expression. */ |
339 | tree gfc_get_expr_charlen (gfc_expr *); | |
6de9cd9a | 340 | /* Initialize a string length variable. */ |
4b7f8314 | 341 | void gfc_conv_string_length (gfc_charlen *, gfc_expr *, stmtblock_t *); |
417ab240 JJ |
342 | /* Ensure type sizes can be gimplified. */ |
343 | void gfc_trans_vla_type_sizes (gfc_symbol *, stmtblock_t *); | |
6de9cd9a DN |
344 | |
345 | /* Add an expression to the end of a block. */ | |
346 | void gfc_add_expr_to_block (stmtblock_t *, tree); | |
347 | /* Add a block to the end of a block. */ | |
348 | void gfc_add_block_to_block (stmtblock_t *, stmtblock_t *); | |
726a989a RB |
349 | /* Add a MODIFY_EXPR to a block. */ |
350 | void gfc_add_modify (stmtblock_t *, tree, tree); | |
6de9cd9a DN |
351 | |
352 | /* Initialize a statement block. */ | |
353 | void gfc_init_block (stmtblock_t *); | |
69de3b83 | 354 | /* Start a new statement block. Like gfc_init_block but also starts a new |
6de9cd9a DN |
355 | variable scope. */ |
356 | void gfc_start_block (stmtblock_t *); | |
357 | /* Finish a statement block. Also closes the scope if the block was created | |
358 | with gfc_start_block. */ | |
359 | tree gfc_finish_block (stmtblock_t *); | |
360 | /* Merge the scope of a block with its parent. */ | |
361 | void gfc_merge_block_scope (stmtblock_t * block); | |
362 | ||
363 | /* Return the backend label decl. */ | |
364 | tree gfc_get_label_decl (gfc_st_label *); | |
365 | ||
366 | /* Return the decl for an external function. */ | |
367 | tree gfc_get_extern_function_decl (gfc_symbol *); | |
368 | ||
369 | /* Return the decl for a function. */ | |
370 | tree gfc_get_function_decl (gfc_symbol *); | |
371 | ||
6de9cd9a DN |
372 | /* Build an ADDR_EXPR. */ |
373 | tree gfc_build_addr_expr (tree, tree); | |
374 | ||
6de9cd9a | 375 | /* Build an ARRAY_REF. */ |
1d6b7f39 | 376 | tree gfc_build_array_ref (tree, tree, tree); |
6de9cd9a | 377 | |
49de9e73 | 378 | /* Creates a label. Decl is artificial if label_id == NULL_TREE. */ |
6de9cd9a DN |
379 | tree gfc_build_label_decl (tree); |
380 | ||
381 | /* Return the decl used to hold the function return value. | |
382 | Do not use if the function has an explicit result variable. */ | |
5f20c93a | 383 | tree gfc_get_fake_result_decl (gfc_symbol *, int); |
6de9cd9a DN |
384 | |
385 | /* Get the return label for the current function. */ | |
386 | tree gfc_get_return_label (void); | |
387 | ||
388 | /* Add a decl to the binding level for the current function. */ | |
389 | void gfc_add_decl_to_function (tree); | |
390 | ||
391 | /* Make prototypes for runtime library functions. */ | |
392 | void gfc_build_builtin_function_decls (void); | |
393 | ||
c8cc8542 PB |
394 | /* Set the backend source location of a decl. */ |
395 | void gfc_set_decl_location (tree, locus *); | |
396 | ||
6de9cd9a DN |
397 | /* Return the variable decl for a symbol. */ |
398 | tree gfc_get_symbol_decl (gfc_symbol *); | |
399 | ||
597073ac PB |
400 | /* Build a static initializer. */ |
401 | tree gfc_conv_initializer (gfc_expr *, gfc_typespec *, tree, bool, bool); | |
402 | ||
f40eccb0 PT |
403 | /* Assign a default initializer to a derived type. */ |
404 | tree gfc_init_default_dt (gfc_symbol *, tree); | |
405 | ||
7b5b57b7 PB |
406 | /* Substitute a temporary variable in place of the real one. */ |
407 | void gfc_shadow_sym (gfc_symbol *, tree, gfc_saved_var *); | |
408 | ||
409 | /* Restore the original variable. */ | |
410 | void gfc_restore_sym (gfc_symbol *, gfc_saved_var *); | |
411 | ||
43ce5e52 FXC |
412 | /* Setting a decl assembler name, mangling it according to target rules |
413 | (like Windows @NN decorations). */ | |
414 | void gfc_set_decl_assembler_name (tree, tree); | |
415 | ||
bae88af6 TS |
416 | /* Returns true if a variable of specified size should go on the stack. */ |
417 | int gfc_can_put_var_on_stack (tree); | |
418 | ||
69de3b83 | 419 | /* Allocate the lang-specific part of a decl node. */ |
6de9cd9a DN |
420 | void gfc_allocate_lang_decl (tree); |
421 | ||
422 | /* Advance along a TREE_CHAIN. */ | |
423 | tree gfc_advance_chain (tree, int); | |
424 | ||
425 | /* Create a decl for a function. */ | |
3d79abbd | 426 | void gfc_create_function_decl (gfc_namespace *); |
6de9cd9a DN |
427 | /* Generate the code for a function. */ |
428 | void gfc_generate_function_code (gfc_namespace *); | |
0de4325e TS |
429 | /* Output a BLOCK DATA program unit. */ |
430 | void gfc_generate_block_data (gfc_namespace *); | |
6de9cd9a DN |
431 | /* Output a decl for a module variable. */ |
432 | void gfc_generate_module_vars (gfc_namespace *); | |
433 | ||
d1b38208 | 434 | struct GTY(()) module_htab_entry { |
a64f5186 JJ |
435 | const char *name; |
436 | tree namespace_decl; | |
437 | htab_t GTY ((param_is (union tree_node))) decls; | |
438 | }; | |
439 | ||
440 | struct module_htab_entry *gfc_find_module (const char *); | |
441 | void gfc_module_add_decl (struct module_htab_entry *, tree); | |
442 | ||
6de9cd9a DN |
443 | /* Get and set the current location. */ |
444 | void gfc_set_backend_locus (locus *); | |
445 | void gfc_get_backend_locus (locus *); | |
446 | ||
447 | /* Handle static constructor functions. */ | |
448 | extern GTY(()) tree gfc_static_ctors; | |
449 | void gfc_generate_constructors (void); | |
450 | ||
636da744 | 451 | /* Get the string length of an array constructor. */ |
0ee8e250 | 452 | bool get_array_ctor_strlen (stmtblock_t *, gfc_constructor *, tree *); |
636da744 | 453 | |
f25a62a5 DK |
454 | /* Generate a runtime error call. */ |
455 | tree gfc_trans_runtime_error (bool, locus*, const char*, ...); | |
456 | tree gfc_trans_runtime_error_vararg (bool, locus*, const char*, va_list); | |
457 | ||
0d52899f TB |
458 | /* Generate a runtime warning/error check. */ |
459 | void gfc_trans_runtime_check (bool, bool, tree, stmtblock_t *, locus *, | |
460 | const char *, ...); | |
6de9cd9a | 461 | |
fb5bc08b DK |
462 | /* Generate a runtime check for same string length. */ |
463 | void gfc_trans_same_strlen_check (const char*, locus*, tree, tree, | |
464 | stmtblock_t*); | |
465 | ||
1529b8d9 FXC |
466 | /* Generate a call to free() after checking that its arg is non-NULL. */ |
467 | tree gfc_call_free (tree); | |
468 | ||
469 | /* Allocate memory after performing a few checks. */ | |
470 | tree gfc_call_malloc (stmtblock_t *, tree, tree); | |
471 | ||
12f681a0 DK |
472 | /* Build a memcpy call. */ |
473 | tree gfc_build_memcpy_call (tree, tree, tree); | |
474 | ||
4376b7cf | 475 | /* Allocate memory for arrays, with optional status variable. */ |
f25a62a5 | 476 | tree gfc_allocate_array_with_status (stmtblock_t*, tree, tree, tree, gfc_expr*); |
4376b7cf FXC |
477 | |
478 | /* Allocate memory, with optional status variable. */ | |
479 | tree gfc_allocate_with_status (stmtblock_t *, tree, tree); | |
480 | ||
481 | /* Generate code to deallocate an array. */ | |
f25a62a5 | 482 | tree gfc_deallocate_with_status (tree, tree, bool, gfc_expr*); |
4376b7cf FXC |
483 | |
484 | /* Generate code to call realloc(). */ | |
485 | tree gfc_call_realloc (stmtblock_t *, tree, tree); | |
486 | ||
1f2959f0 | 487 | /* Generate code for an assignment, includes scalarization. */ |
6b591ec0 | 488 | tree gfc_trans_assignment (gfc_expr *, gfc_expr *, bool); |
6de9cd9a | 489 | |
49de9e73 | 490 | /* Generate code for a pointer assignment. */ |
6de9cd9a DN |
491 | tree gfc_trans_pointer_assignment (gfc_expr *, gfc_expr *); |
492 | ||
493 | /* Initialize function decls for library functions. */ | |
494 | void gfc_build_intrinsic_lib_fndecls (void); | |
495 | /* Create function decls for IO library functions. */ | |
f96d606f | 496 | void gfc_trans_io_runtime_check (tree, tree, int, const char *, stmtblock_t *); |
6de9cd9a DN |
497 | void gfc_build_io_library_fndecls (void); |
498 | /* Build a function decl for a library function. */ | |
499 | tree gfc_build_library_function_decl (tree, tree, int, ...); | |
500 | ||
9abe5e56 DK |
501 | /* Process the local variable decls of a block construct. */ |
502 | void gfc_process_block_locals (gfc_namespace*); | |
503 | ||
504 | /* Output initialization/clean-up code that was deferred. */ | |
505 | tree gfc_trans_deferred_vars (gfc_symbol*, tree); | |
506 | ||
6de9cd9a DN |
507 | /* somewhere! */ |
508 | tree pushdecl (tree); | |
509 | tree pushdecl_top_level (tree); | |
510 | void pushlevel (int); | |
511 | tree poplevel (int, int, int); | |
512 | tree getdecls (void); | |
513 | tree gfc_truthvalue_conversion (tree); | |
c79efc4d | 514 | tree gfc_builtin_function (tree); |
fad0afd7 JJ |
515 | struct array_descr_info; |
516 | bool gfc_get_array_descr_info (const_tree, struct array_descr_info *); | |
6de9cd9a | 517 | |
6c7a4dfd | 518 | /* In trans-openmp.c */ |
58f9752a | 519 | bool gfc_omp_privatize_by_reference (const_tree); |
6c7a4dfd | 520 | enum omp_clause_default_kind gfc_omp_predetermined_sharing (tree); |
a68ab351 JJ |
521 | tree gfc_omp_clause_default_ctor (tree, tree, tree); |
522 | tree gfc_omp_clause_copy_ctor (tree, tree, tree); | |
523 | tree gfc_omp_clause_assign_op (tree, tree, tree); | |
524 | tree gfc_omp_clause_dtor (tree, tree); | |
6c7a4dfd JJ |
525 | bool gfc_omp_disregard_value_expr (tree, bool); |
526 | bool gfc_omp_private_debug_clause (tree, bool); | |
a68ab351 | 527 | bool gfc_omp_private_outer_ref (tree); |
6c7a4dfd JJ |
528 | struct gimplify_omp_ctx; |
529 | void gfc_omp_firstprivatize_type_sizes (struct gimplify_omp_ctx *, tree); | |
530 | ||
6de9cd9a | 531 | /* Runtime library function decls. */ |
6de9cd9a DN |
532 | extern GTY(()) tree gfor_fndecl_pause_numeric; |
533 | extern GTY(()) tree gfor_fndecl_pause_string; | |
534 | extern GTY(()) tree gfor_fndecl_stop_numeric; | |
535 | extern GTY(()) tree gfor_fndecl_stop_string; | |
6de9cd9a | 536 | extern GTY(()) tree gfor_fndecl_runtime_error; |
f96d606f | 537 | extern GTY(()) tree gfor_fndecl_runtime_error_at; |
0d52899f | 538 | extern GTY(()) tree gfor_fndecl_runtime_warning_at; |
1529b8d9 | 539 | extern GTY(()) tree gfor_fndecl_os_error; |
f96d606f | 540 | extern GTY(()) tree gfor_fndecl_generate_error; |
944b8b35 | 541 | extern GTY(()) tree gfor_fndecl_set_fpe; |
68d2e027 | 542 | extern GTY(()) tree gfor_fndecl_set_options; |
25fc05eb | 543 | extern GTY(()) tree gfor_fndecl_ttynam; |
35059811 FXC |
544 | extern GTY(()) tree gfor_fndecl_ctime; |
545 | extern GTY(()) tree gfor_fndecl_fdate; | |
6de9cd9a DN |
546 | extern GTY(()) tree gfor_fndecl_in_pack; |
547 | extern GTY(()) tree gfor_fndecl_in_unpack; | |
548 | extern GTY(()) tree gfor_fndecl_associated; | |
549 | ||
550 | /* Math functions. Many other math functions are handled in | |
551 | trans-intrinsic.c. */ | |
5b200ac2 | 552 | |
d1b38208 | 553 | typedef struct GTY(()) gfc_powdecl_list { |
5b200ac2 FW |
554 | tree integer; |
555 | tree real; | |
556 | tree cmplx; | |
557 | } | |
558 | gfc_powdecl_list; | |
559 | ||
644cb69f | 560 | extern GTY(()) gfc_powdecl_list gfor_fndecl_math_powi[4][3]; |
6de9cd9a DN |
561 | extern GTY(()) tree gfor_fndecl_math_ishftc4; |
562 | extern GTY(()) tree gfor_fndecl_math_ishftc8; | |
644cb69f | 563 | extern GTY(()) tree gfor_fndecl_math_ishftc16; |
6de9cd9a | 564 | |
5a0aad31 FXC |
565 | /* BLAS functions. */ |
566 | extern GTY(()) tree gfor_fndecl_sgemm; | |
567 | extern GTY(()) tree gfor_fndecl_dgemm; | |
568 | extern GTY(()) tree gfor_fndecl_cgemm; | |
569 | extern GTY(()) tree gfor_fndecl_zgemm; | |
570 | ||
6de9cd9a | 571 | /* String functions. */ |
6de9cd9a DN |
572 | extern GTY(()) tree gfor_fndecl_compare_string; |
573 | extern GTY(()) tree gfor_fndecl_concat_string; | |
574 | extern GTY(()) tree gfor_fndecl_string_len_trim; | |
575 | extern GTY(()) tree gfor_fndecl_string_index; | |
576 | extern GTY(()) tree gfor_fndecl_string_scan; | |
577 | extern GTY(()) tree gfor_fndecl_string_verify; | |
578 | extern GTY(()) tree gfor_fndecl_string_trim; | |
2263c775 | 579 | extern GTY(()) tree gfor_fndecl_string_minmax; |
6de9cd9a DN |
580 | extern GTY(()) tree gfor_fndecl_adjustl; |
581 | extern GTY(()) tree gfor_fndecl_adjustr; | |
d393bbd7 | 582 | extern GTY(()) tree gfor_fndecl_select_string; |
374929b2 FXC |
583 | extern GTY(()) tree gfor_fndecl_compare_string_char4; |
584 | extern GTY(()) tree gfor_fndecl_concat_string_char4; | |
585 | extern GTY(()) tree gfor_fndecl_string_len_trim_char4; | |
586 | extern GTY(()) tree gfor_fndecl_string_index_char4; | |
587 | extern GTY(()) tree gfor_fndecl_string_scan_char4; | |
588 | extern GTY(()) tree gfor_fndecl_string_verify_char4; | |
589 | extern GTY(()) tree gfor_fndecl_string_trim_char4; | |
590 | extern GTY(()) tree gfor_fndecl_string_minmax_char4; | |
591 | extern GTY(()) tree gfor_fndecl_adjustl_char4; | |
592 | extern GTY(()) tree gfor_fndecl_adjustr_char4; | |
d393bbd7 FXC |
593 | extern GTY(()) tree gfor_fndecl_select_string_char4; |
594 | ||
595 | /* Conversion between character kinds. */ | |
596 | extern GTY(()) tree gfor_fndecl_convert_char1_to_char4; | |
597 | extern GTY(()) tree gfor_fndecl_convert_char4_to_char1; | |
6de9cd9a DN |
598 | |
599 | /* Other misc. runtime library functions. */ | |
600 | extern GTY(()) tree gfor_fndecl_size0; | |
601 | extern GTY(()) tree gfor_fndecl_size1; | |
b41b2534 | 602 | extern GTY(()) tree gfor_fndecl_iargc; |
0a05c536 FXC |
603 | extern GTY(()) tree gfor_fndecl_clz128; |
604 | extern GTY(()) tree gfor_fndecl_ctz128; | |
6de9cd9a | 605 | |
a39fafac FXC |
606 | /* Implemented in Fortran. */ |
607 | extern GTY(()) tree gfor_fndecl_sc_kind; | |
6de9cd9a DN |
608 | extern GTY(()) tree gfor_fndecl_si_kind; |
609 | extern GTY(()) tree gfor_fndecl_sr_kind; | |
610 | ||
611 | ||
612 | /* True if node is an integer constant. */ | |
613 | #define INTEGER_CST_P(node) (TREE_CODE(node) == INTEGER_CST) | |
614 | ||
615 | /* G95-specific declaration information. */ | |
616 | ||
fad0afd7 JJ |
617 | enum gfc_array_kind |
618 | { | |
619 | GFC_ARRAY_UNKNOWN, | |
620 | GFC_ARRAY_ASSUMED_SHAPE, | |
621 | GFC_ARRAY_ALLOCATABLE, | |
622 | GFC_ARRAY_POINTER | |
623 | }; | |
624 | ||
6de9cd9a | 625 | /* Array types only. */ |
d1b38208 | 626 | struct GTY(()) lang_type { |
6de9cd9a | 627 | int rank; |
fad0afd7 | 628 | enum gfc_array_kind akind; |
6de9cd9a DN |
629 | tree lbound[GFC_MAX_DIMENSIONS]; |
630 | tree ubound[GFC_MAX_DIMENSIONS]; | |
631 | tree stride[GFC_MAX_DIMENSIONS]; | |
632 | tree size; | |
633 | tree offset; | |
634 | tree dtype; | |
635 | tree dataptr_type; | |
de870512 | 636 | tree span; |
d560566a | 637 | tree base_decl[2]; |
6de9cd9a DN |
638 | }; |
639 | ||
d1b38208 | 640 | struct GTY(()) lang_decl { |
6de9cd9a DN |
641 | /* Dummy variables. */ |
642 | tree saved_descriptor; | |
643 | /* Assigned integer nodes. Stringlength is the IO format string's length. | |
644 | Addr is the address of the string or the target label. Stringlength is | |
1f2959f0 | 645 | initialized to -2 and assigned to -1 when addr is assigned to the |
6de9cd9a DN |
646 | address of target label. */ |
647 | tree stringlen; | |
648 | tree addr; | |
1d6b7f39 | 649 | tree span; |
6de9cd9a DN |
650 | }; |
651 | ||
652 | ||
653 | #define GFC_DECL_ASSIGN_ADDR(node) DECL_LANG_SPECIFIC(node)->addr | |
654 | #define GFC_DECL_STRING_LEN(node) DECL_LANG_SPECIFIC(node)->stringlen | |
1d6b7f39 | 655 | #define GFC_DECL_SPAN(node) DECL_LANG_SPECIFIC(node)->span |
6de9cd9a DN |
656 | #define GFC_DECL_SAVED_DESCRIPTOR(node) \ |
657 | (DECL_LANG_SPECIFIC(node)->saved_descriptor) | |
658 | #define GFC_DECL_PACKED_ARRAY(node) DECL_LANG_FLAG_0(node) | |
659 | #define GFC_DECL_PARTIAL_PACKED_ARRAY(node) DECL_LANG_FLAG_1(node) | |
660 | #define GFC_DECL_ASSIGN(node) DECL_LANG_FLAG_2(node) | |
6c7a4dfd JJ |
661 | #define GFC_DECL_COMMON_OR_EQUIV(node) DECL_LANG_FLAG_3(node) |
662 | #define GFC_DECL_CRAY_POINTEE(node) DECL_LANG_FLAG_4(node) | |
663 | #define GFC_DECL_RESULT(node) DECL_LANG_FLAG_5(node) | |
1d6b7f39 | 664 | #define GFC_DECL_SUBREF_ARRAY_P(node) DECL_LANG_FLAG_6(node) |
6de9cd9a DN |
665 | |
666 | /* An array descriptor. */ | |
667 | #define GFC_DESCRIPTOR_TYPE_P(node) TYPE_LANG_FLAG_1(node) | |
668 | /* An array without a descriptor. */ | |
669 | #define GFC_ARRAY_TYPE_P(node) TYPE_LANG_FLAG_2(node) | |
e1c82219 JJ |
670 | /* Fortran POINTER type. */ |
671 | #define GFC_POINTER_TYPE_P(node) TYPE_LANG_FLAG_3(node) | |
6de9cd9a DN |
672 | /* The GFC_TYPE_ARRAY_* members are present in both descriptor and |
673 | descriptorless array types. */ | |
674 | #define GFC_TYPE_ARRAY_LBOUND(node, dim) \ | |
675 | (TYPE_LANG_SPECIFIC(node)->lbound[dim]) | |
676 | #define GFC_TYPE_ARRAY_UBOUND(node, dim) \ | |
677 | (TYPE_LANG_SPECIFIC(node)->ubound[dim]) | |
678 | #define GFC_TYPE_ARRAY_STRIDE(node, dim) \ | |
679 | (TYPE_LANG_SPECIFIC(node)->stride[dim]) | |
680 | #define GFC_TYPE_ARRAY_RANK(node) (TYPE_LANG_SPECIFIC(node)->rank) | |
681 | #define GFC_TYPE_ARRAY_SIZE(node) (TYPE_LANG_SPECIFIC(node)->size) | |
682 | #define GFC_TYPE_ARRAY_OFFSET(node) (TYPE_LANG_SPECIFIC(node)->offset) | |
fad0afd7 | 683 | #define GFC_TYPE_ARRAY_AKIND(node) (TYPE_LANG_SPECIFIC(node)->akind) |
df2fba9e | 684 | /* Code should use gfc_get_dtype instead of accessing this directly. It may |
40b026d8 | 685 | not be known when the type is created. */ |
6de9cd9a DN |
686 | #define GFC_TYPE_ARRAY_DTYPE(node) (TYPE_LANG_SPECIFIC(node)->dtype) |
687 | #define GFC_TYPE_ARRAY_DATAPTR_TYPE(node) \ | |
688 | (TYPE_LANG_SPECIFIC(node)->dataptr_type) | |
de870512 | 689 | #define GFC_TYPE_ARRAY_SPAN(node) (TYPE_LANG_SPECIFIC(node)->span) |
d560566a AO |
690 | #define GFC_TYPE_ARRAY_BASE_DECL(node, internal) \ |
691 | (TYPE_LANG_SPECIFIC(node)->base_decl[(internal)]) | |
6de9cd9a | 692 | |
6de9cd9a | 693 | /* Build an expression with void type. */ |
47056774 TS |
694 | #define build1_v(code, arg) fold_build1(code, void_type_node, arg) |
695 | #define build2_v(code, arg1, arg2) fold_build2(code, void_type_node, \ | |
696 | arg1, arg2) | |
697 | #define build3_v(code, arg1, arg2, arg3) fold_build3(code, void_type_node, \ | |
698 | arg1, arg2, arg3) | |
6c7a4dfd JJ |
699 | #define build4_v(code, arg1, arg2, arg3, arg4) build4(code, void_type_node, \ |
700 | arg1, arg2, arg3, arg4) | |
62ab4a54 RS |
701 | |
702 | /* This group of functions allows a caller to evaluate an expression from | |
703 | the callee's interface. It establishes a mapping between the interface's | |
704 | dummy arguments and the caller's actual arguments, then applies that | |
705 | mapping to a given gfc_expr. | |
706 | ||
707 | You can initialize a mapping structure like so: | |
708 | ||
709 | gfc_interface_mapping mapping; | |
710 | ... | |
711 | gfc_init_interface_mapping (&mapping); | |
712 | ||
713 | You should then evaluate each actual argument into a temporary | |
714 | gfc_se structure, here called "se", and map the result to the | |
715 | dummy argument's symbol, here called "sym": | |
716 | ||
717 | gfc_add_interface_mapping (&mapping, sym, &se); | |
718 | ||
719 | After adding all mappings, you should call: | |
720 | ||
721 | gfc_finish_interface_mapping (&mapping, pre, post); | |
722 | ||
723 | where "pre" and "post" are statement blocks for initialization | |
724 | and finalization code respectively. You can then evaluate an | |
725 | interface expression "expr" as follows: | |
726 | ||
727 | gfc_apply_interface_mapping (&mapping, se, expr); | |
728 | ||
729 | Once you've evaluated all expressions, you should free | |
730 | the mapping structure with: | |
731 | ||
732 | gfc_free_interface_mapping (&mapping); */ | |
733 | ||
734 | ||
735 | /* This structure represents a mapping from OLD to NEW, where OLD is a | |
736 | dummy argument symbol and NEW is a symbol that represents the value | |
737 | of an actual argument. Mappings are linked together using NEXT | |
738 | (in no particular order). */ | |
739 | typedef struct gfc_interface_sym_mapping | |
740 | { | |
741 | struct gfc_interface_sym_mapping *next; | |
742 | gfc_symbol *old; | |
7b901ac4 | 743 | gfc_symtree *new_sym; |
0a164a3c | 744 | gfc_expr *expr; |
62ab4a54 RS |
745 | } |
746 | gfc_interface_sym_mapping; | |
747 | ||
748 | ||
749 | /* This structure is used by callers to evaluate an expression from | |
750 | a callee's interface. */ | |
751 | typedef struct gfc_interface_mapping | |
752 | { | |
753 | /* Maps the interface's dummy arguments to the values that the caller | |
754 | is passing. The whole list is owned by this gfc_interface_mapping. */ | |
755 | gfc_interface_sym_mapping *syms; | |
756 | ||
757 | /* A list of gfc_charlens that were needed when creating copies of | |
758 | expressions. The whole list is owned by this gfc_interface_mapping. */ | |
759 | gfc_charlen *charlens; | |
760 | } | |
761 | gfc_interface_mapping; | |
762 | ||
763 | void gfc_init_interface_mapping (gfc_interface_mapping *); | |
764 | void gfc_free_interface_mapping (gfc_interface_mapping *); | |
765 | void gfc_add_interface_mapping (gfc_interface_mapping *, | |
0a164a3c | 766 | gfc_symbol *, gfc_se *, gfc_expr *); |
62ab4a54 RS |
767 | void gfc_finish_interface_mapping (gfc_interface_mapping *, |
768 | stmtblock_t *, stmtblock_t *); | |
769 | void gfc_apply_interface_mapping (gfc_interface_mapping *, | |
770 | gfc_se *, gfc_expr *); | |
771 | ||
dd18a33b FXC |
772 | |
773 | /* Standard error messages used in all the trans-*.c files. */ | |
7e49f965 TS |
774 | extern const char gfc_msg_bounds[]; |
775 | extern const char gfc_msg_fault[]; | |
776 | extern const char gfc_msg_wrong_return[]; | |
dd18a33b | 777 | |
34d01e1d VL |
778 | #define OMPWS_WORKSHARE_FLAG 1 /* Set if in a workshare construct. */ |
779 | #define OMPWS_CURR_SINGLEUNIT 2 /* Set if current gfc_code in workshare | |
780 | construct is not workshared. */ | |
781 | #define OMPWS_SCALARIZER_WS 4 /* Set if scalarizer should attempt | |
782 | to create parallel loops. */ | |
783 | #define OMPWS_NOWAIT 8 /* Use NOWAIT on OMP_FOR. */ | |
784 | extern int ompws_flags; | |
dd18a33b | 785 | |
6de9cd9a | 786 | #endif /* GFC_TRANS_H */ |