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69dcadff | 1 | /* Default language-specific hooks. |
a5544970 | 2 | Copyright (C) 2001-2019 Free Software Foundation, Inc. |
69dcadff AO |
3 | Contributed by Alexandre Oliva <aoliva@redhat.com> |
4 | ||
54a7b573 | 5 | This file is part of GCC. |
69dcadff | 6 | |
54a7b573 | 7 | GCC is free software; you can redistribute it and/or modify |
69dcadff | 8 | it under the terms of the GNU General Public License as published by |
9dcd6f09 | 9 | the Free Software Foundation; either version 3, or (at your option) |
69dcadff AO |
10 | any later version. |
11 | ||
54a7b573 | 12 | GCC is distributed in the hope that it will be useful, |
69dcadff AO |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
9dcd6f09 NC |
18 | along with GCC; see the file COPYING3. If not see |
19 | <http://www.gnu.org/licenses/>. */ | |
69dcadff AO |
20 | |
21 | #include "config.h" | |
22 | #include "system.h" | |
4977bab6 | 23 | #include "coretypes.h" |
957060b5 | 24 | #include "target.h" |
957060b5 AM |
25 | #include "rtl.h" |
26 | #include "tree.h" | |
27 | #include "timevar.h" | |
28 | #include "stringpool.h" | |
957060b5 | 29 | #include "diagnostic.h" |
971801ff | 30 | #include "intl.h" |
69dcadff | 31 | #include "toplev.h" |
d8a2d370 | 32 | #include "attribs.h" |
45b0be94 | 33 | #include "gimplify.h" |
59bee412 | 34 | #include "langhooks.h" |
cf835838 | 35 | #include "tree-diagnostic.h" |
d7f09764 | 36 | #include "output.h" |
ed7dc894 | 37 | #include "timevar.h" |
59bee412 | 38 | |
77b1a921 | 39 | /* Do nothing; in many cases the default hook. */ |
8ac61af7 | 40 | |
77b1a921 | 41 | void |
0c20a65f | 42 | lhd_do_nothing (void) |
77b1a921 NB |
43 | { |
44 | } | |
45 | ||
b03e38e1 | 46 | /* Do nothing (tree). */ |
63e1b1c4 NB |
47 | |
48 | void | |
e18476eb | 49 | lhd_do_nothing_t (tree ARG_UNUSED (t)) |
63e1b1c4 NB |
50 | { |
51 | } | |
52 | ||
f9417da1 RG |
53 | /* Pass through (tree). */ |
54 | tree | |
55 | lhd_pass_through_t (tree t) | |
56 | { | |
57 | return t; | |
58 | } | |
59 | ||
a7e8c268 MM |
60 | /* Do nothing (int, int, int). Return NULL_TREE. */ |
61 | ||
62 | tree | |
9f63daea | 63 | lhd_do_nothing_iii_return_null_tree (int ARG_UNUSED (i), |
e18476eb BI |
64 | int ARG_UNUSED (j), |
65 | int ARG_UNUSED (k)) | |
a7e8c268 MM |
66 | { |
67 | return NULL_TREE; | |
68 | } | |
69 | ||
b03e38e1 NB |
70 | /* Do nothing (function). */ |
71 | ||
72 | void | |
e18476eb | 73 | lhd_do_nothing_f (struct function * ARG_UNUSED (f)) |
b03e38e1 NB |
74 | { |
75 | } | |
76 | ||
c88770e9 NB |
77 | /* Do nothing (return NULL_TREE). */ |
78 | ||
79 | tree | |
e18476eb | 80 | lhd_return_null_tree (tree ARG_UNUSED (t)) |
c88770e9 NB |
81 | { |
82 | return NULL_TREE; | |
83 | } | |
84 | ||
fa233e34 KG |
85 | /* Do nothing (return NULL_TREE). */ |
86 | ||
87 | tree | |
88 | lhd_return_null_const_tree (const_tree ARG_UNUSED (t)) | |
89 | { | |
90 | return NULL_TREE; | |
91 | } | |
92 | ||
4bfec483 NB |
93 | /* The default post options hook. */ |
94 | ||
95 | bool | |
e18476eb | 96 | lhd_post_options (const char ** ARG_UNUSED (pfilename)) |
4bfec483 | 97 | { |
8ce94e44 JM |
98 | /* Excess precision other than "fast" requires front-end |
99 | support. */ | |
100 | flag_excess_precision_cmdline = EXCESS_PRECISION_FAST; | |
4bfec483 NB |
101 | return false; |
102 | } | |
103 | ||
5d69f816 NB |
104 | /* Called from by print-tree.c. */ |
105 | ||
106 | void | |
e18476eb BI |
107 | lhd_print_tree_nothing (FILE * ARG_UNUSED (file), |
108 | tree ARG_UNUSED (node), | |
109 | int ARG_UNUSED (indent)) | |
5d69f816 | 110 | { |
ac79cd5a RK |
111 | } |
112 | ||
d7438551 | 113 | /* Called from check_global_declaration. */ |
ef4f94ac RH |
114 | |
115 | bool | |
ac7d7749 | 116 | lhd_warn_unused_global_decl (const_tree decl) |
ef4f94ac | 117 | { |
d7438551 | 118 | /* This is what used to exist in check_global_declaration. Probably |
ef4f94ac RH |
119 | not many of these actually apply to non-C languages. */ |
120 | ||
54dfd46b | 121 | if (TREE_CODE (decl) == FUNCTION_DECL && DECL_DECLARED_INLINE_P (decl)) |
ef4f94ac | 122 | return false; |
8813a647 | 123 | if (VAR_P (decl) && TREE_READONLY (decl)) |
ef4f94ac RH |
124 | return false; |
125 | if (DECL_IN_SYSTEM_HEADER (decl)) | |
126 | return false; | |
127 | ||
128 | return true; | |
129 | } | |
130 | ||
599bba86 NB |
131 | /* Set the DECL_ASSEMBLER_NAME for DECL. */ |
132 | void | |
0c20a65f | 133 | lhd_set_decl_assembler_name (tree decl) |
599bba86 | 134 | { |
5234b8f5 DS |
135 | tree id; |
136 | ||
1ee85ee1 JH |
137 | /* set_decl_assembler_name may be called on TYPE_DECL to record ODR |
138 | name for C++ types. By default types have no ODR names. */ | |
139 | if (TREE_CODE (decl) == TYPE_DECL) | |
140 | return; | |
141 | ||
599bba86 NB |
142 | /* The language-independent code should never use the |
143 | DECL_ASSEMBLER_NAME for lots of DECLs. Only FUNCTION_DECLs and | |
144 | VAR_DECLs for variables with static storage duration need a real | |
8127d0e0 | 145 | DECL_ASSEMBLER_NAME. */ |
41806d92 | 146 | gcc_assert (TREE_CODE (decl) == FUNCTION_DECL |
8813a647 | 147 | || (VAR_P (decl) |
41806d92 NS |
148 | && (TREE_STATIC (decl) |
149 | || DECL_EXTERNAL (decl) | |
150 | || TREE_PUBLIC (decl)))); | |
b8698a0f | 151 | |
41806d92 NS |
152 | /* By default, assume the name to use in assembly code is the same |
153 | as that used in the source language. (That's correct for C, and | |
154 | GCC used to set DECL_ASSEMBLER_NAME to the same value as | |
155 | DECL_NAME in build_decl, so this choice provides backwards | |
5234b8f5 DS |
156 | compatibility with existing front-ends. This assumption is wrapped |
157 | in a target hook, to allow for target-specific modification of the | |
158 | identifier. | |
b8698a0f | 159 | |
41806d92 NS |
160 | Can't use just the variable's own name for a variable whose scope |
161 | is less than the whole compilation. Concatenate a distinguishing | |
162 | number - we use the DECL_UID. */ | |
5234b8f5 | 163 | |
116f30c3 | 164 | if (TREE_PUBLIC (decl) || DECL_FILE_SCOPE_P (decl)) |
5234b8f5 | 165 | id = targetm.mangle_decl_assembler_name (decl, DECL_NAME (decl)); |
41806d92 | 166 | else |
26e0dcb3 | 167 | { |
41806d92 NS |
168 | const char *name = IDENTIFIER_POINTER (DECL_NAME (decl)); |
169 | char *label; | |
b8698a0f | 170 | |
41806d92 | 171 | ASM_FORMAT_PRIVATE_NAME (label, name, DECL_UID (decl)); |
5234b8f5 | 172 | id = get_identifier (label); |
26e0dcb3 | 173 | } |
5f3682ff | 174 | |
5234b8f5 | 175 | SET_DECL_ASSEMBLER_NAME (decl, id); |
5f3682ff | 176 | } |
5234b8f5 | 177 | |
5f3682ff NS |
178 | /* Forcibly overwrite the DECL_ASSEMBLER_NAME for DECL to NAME. */ |
179 | void | |
180 | lhd_overwrite_decl_assembler_name (tree decl, tree name) | |
181 | { | |
182 | DECL_ASSEMBLER_NAME_RAW (decl) = name; | |
599bba86 NB |
183 | } |
184 | ||
ab393bf1 NB |
185 | /* Type promotion for variable arguments. */ |
186 | tree | |
e18476eb | 187 | lhd_type_promotes_to (tree ARG_UNUSED (type)) |
ab393bf1 | 188 | { |
41806d92 | 189 | gcc_unreachable (); |
ab393bf1 NB |
190 | } |
191 | ||
9649812a MM |
192 | /* Registration of machine- or os-specific builtin types. */ |
193 | void | |
9f63daea | 194 | lhd_register_builtin_type (tree ARG_UNUSED (type), |
e18476eb | 195 | const char * ARG_UNUSED (name)) |
9649812a MM |
196 | { |
197 | } | |
198 | ||
7a228918 NB |
199 | /* Invalid use of an incomplete type. */ |
200 | void | |
4f2e1536 MP |
201 | lhd_incomplete_type_error (location_t ARG_UNUSED (loc), |
202 | const_tree ARG_UNUSED (value), const_tree type) | |
7a228918 | 203 | { |
41806d92 NS |
204 | gcc_assert (TREE_CODE (type) == ERROR_MARK); |
205 | return; | |
7a228918 NB |
206 | } |
207 | ||
37207ee7 ZW |
208 | /* Provide a default routine for alias sets that always returns -1. This |
209 | is used by languages that don't need to do anything special. */ | |
210 | ||
4862826d | 211 | alias_set_type |
e18476eb | 212 | lhd_get_alias_set (tree ARG_UNUSED (t)) |
37207ee7 ZW |
213 | { |
214 | return -1; | |
215 | } | |
216 | ||
7afff7cf NB |
217 | /* This is the default decl_printable_name function. */ |
218 | ||
219 | const char * | |
e18476eb | 220 | lhd_decl_printable_name (tree decl, int ARG_UNUSED (verbosity)) |
7afff7cf | 221 | { |
05cf561d | 222 | gcc_assert (decl && DECL_NAME (decl)); |
7afff7cf NB |
223 | return IDENTIFIER_POINTER (DECL_NAME (decl)); |
224 | } | |
225 | ||
721a8ac5 NS |
226 | /* This is the default dwarf_name function. */ |
227 | ||
228 | const char * | |
229 | lhd_dwarf_name (tree t, int verbosity) | |
230 | { | |
231 | gcc_assert (DECL_P (t)); | |
232 | ||
233 | return lang_hooks.decl_printable_name (t, verbosity); | |
234 | } | |
235 | ||
6de9cd9a DN |
236 | /* This compares two types for equivalence ("compatible" in C-based languages). |
237 | This routine should only return 1 if it is sure. It should not be used | |
238 | in contexts where erroneously returning 0 causes problems. */ | |
239 | ||
240 | int | |
241 | lhd_types_compatible_p (tree x, tree y) | |
242 | { | |
243 | return TYPE_MAIN_VARIANT (x) == TYPE_MAIN_VARIANT (y); | |
244 | } | |
245 | ||
e11e816e | 246 | /* lang_hooks.tree_dump.dump_tree: Dump language-specific parts of tree |
cc2902df | 247 | nodes. Returns nonzero if it does not want the usual dumping of the |
89d684bb BM |
248 | second argument. */ |
249 | ||
2bd3ecad | 250 | bool |
0c20a65f | 251 | lhd_tree_dump_dump_tree (void *di ATTRIBUTE_UNUSED, tree t ATTRIBUTE_UNUSED) |
89d684bb | 252 | { |
2bd3ecad | 253 | return false; |
89d684bb BM |
254 | } |
255 | ||
e11e816e | 256 | /* lang_hooks.tree_dump.type_qual: Determine type qualifiers in a |
89d684bb BM |
257 | language-specific way. */ |
258 | ||
259 | int | |
ac7d7749 | 260 | lhd_tree_dump_type_quals (const_tree t) |
89d684bb BM |
261 | { |
262 | return TYPE_QUALS (t); | |
263 | } | |
a77a9a18 | 264 | |
6de9cd9a DN |
265 | /* lang_hooks.gimplify_expr re-writes *EXPR_P into GIMPLE form. */ |
266 | ||
267 | int | |
726a989a RB |
268 | lhd_gimplify_expr (tree *expr_p ATTRIBUTE_UNUSED, |
269 | gimple_seq *pre_p ATTRIBUTE_UNUSED, | |
270 | gimple_seq *post_p ATTRIBUTE_UNUSED) | |
16b0d23f | 271 | { |
6de9cd9a | 272 | return GS_UNHANDLED; |
16b0d23f | 273 | } |
2f51bb1d | 274 | |
d78e771d | 275 | /* lang_hooks.tree_size: Determine the size of a tree with code C, |
8e7014b4 JJ |
276 | which is a language-specific tree code in category tcc_constant, |
277 | tcc_exceptional or tcc_type. The default expects never to be called. */ | |
d78e771d | 278 | size_t |
0c20a65f | 279 | lhd_tree_size (enum tree_code c ATTRIBUTE_UNUSED) |
d78e771d | 280 | { |
41806d92 | 281 | gcc_unreachable (); |
d78e771d ZW |
282 | } |
283 | ||
e076f71a AH |
284 | /* Return true if decl, which is a function decl, may be called by a |
285 | sibcall. */ | |
286 | ||
287 | bool | |
58f9752a | 288 | lhd_decl_ok_for_sibcall (const_tree decl ATTRIBUTE_UNUSED) |
e076f71a AH |
289 | { |
290 | return true; | |
291 | } | |
292 | ||
d7438551 AH |
293 | /* Generic global declaration processing. This is meant to be called |
294 | by the front-ends at the end of parsing. C/C++ do their own thing, | |
295 | but other front-ends may call this. */ | |
296 | ||
2f51bb1d | 297 | void |
d7438551 | 298 | global_decl_processing (void) |
2f51bb1d | 299 | { |
a406865a RG |
300 | tree globals, decl, *vec; |
301 | int len, i; | |
302 | ||
d7438551 | 303 | timevar_stop (TV_PHASE_PARSING); |
0d6bf48c | 304 | timevar_start (TV_PHASE_DEFERRED); |
2f51bb1d MA |
305 | /* Really define vars that have had only a tentative definition. |
306 | Really output inline functions that must actually be callable | |
307 | and have not been output so far. */ | |
308 | ||
a406865a RG |
309 | globals = lang_hooks.decls.getdecls (); |
310 | len = list_length (globals); | |
311 | vec = XNEWVEC (tree, len); | |
2f51bb1d MA |
312 | |
313 | /* Process the decls in reverse order--earliest first. | |
314 | Put them into VEC from back to front, then take out from front. */ | |
315 | ||
910ad8de | 316 | for (i = 0, decl = globals; i < len; i++, decl = DECL_CHAIN (decl)) |
2f51bb1d MA |
317 | vec[len - i - 1] = decl; |
318 | ||
319 | wrapup_global_declarations (vec, len); | |
0d6bf48c JH |
320 | timevar_stop (TV_PHASE_DEFERRED); |
321 | ||
d7438551 | 322 | timevar_start (TV_PHASE_PARSING); |
2f51bb1d MA |
323 | free (vec); |
324 | } | |
26e0dcb3 | 325 | |
21ecc5a7 GDR |
326 | /* Called to perform language-specific initialization of CTX. */ |
327 | void | |
1ebe4b4f | 328 | lhd_initialize_diagnostics (diagnostic_context *ctx ATTRIBUTE_UNUSED) |
21ecc5a7 GDR |
329 | { |
330 | } | |
331 | ||
2a8a8d7b NS |
332 | /* Called to register dumps. */ |
333 | void | |
334 | lhd_register_dumps (gcc::dump_manager *) | |
335 | { | |
336 | } | |
337 | ||
7a9bf9a4 JM |
338 | /* Called to perform language-specific options initialization. */ |
339 | void | |
340 | lhd_init_options (unsigned int decoded_options_count ATTRIBUTE_UNUSED, | |
341 | struct cl_decoded_option *decoded_options ATTRIBUTE_UNUSED) | |
342 | { | |
343 | } | |
344 | ||
345 | /* By default, always complain about options for the wrong language. */ | |
346 | bool | |
347 | lhd_complain_wrong_lang_p (const struct cl_option *option ATTRIBUTE_UNUSED) | |
348 | { | |
349 | return true; | |
350 | } | |
351 | ||
5f20c657 JM |
352 | /* By default, no language-specific options are valid. */ |
353 | bool | |
354 | lhd_handle_option (size_t code ATTRIBUTE_UNUSED, | |
355 | const char *arg ATTRIBUTE_UNUSED, | |
00abf86c MS |
356 | HOST_WIDE_INT value ATTRIBUTE_UNUSED, |
357 | int kind ATTRIBUTE_UNUSED, | |
a4d8c676 | 358 | location_t loc ATTRIBUTE_UNUSED, |
5f20c657 JM |
359 | const struct cl_option_handlers *handlers ATTRIBUTE_UNUSED) |
360 | { | |
361 | return false; | |
362 | } | |
363 | ||
dba65e79 GDR |
364 | /* The default function to print out name of current function that caused |
365 | an error. */ | |
366 | void | |
c94ed7a1 JJ |
367 | lhd_print_error_function (diagnostic_context *context, const char *file, |
368 | diagnostic_info *diagnostic) | |
dba65e79 | 369 | { |
c94ed7a1 | 370 | if (diagnostic_last_function_changed (context, diagnostic)) |
dba65e79 | 371 | { |
653fee19 | 372 | char *old_prefix = pp_take_prefix (context->printer); |
cf835838 | 373 | tree abstract_origin = diagnostic_abstract_origin (diagnostic); |
c94ed7a1 | 374 | char *new_prefix = (file && abstract_origin == NULL) |
e78e8a0b | 375 | ? file_name_as_prefix (context, file) : NULL; |
dba65e79 GDR |
376 | |
377 | pp_set_prefix (context->printer, new_prefix); | |
378 | ||
379 | if (current_function_decl == NULL) | |
971801ff | 380 | pp_printf (context->printer, _("At top level:")); |
dba65e79 GDR |
381 | else |
382 | { | |
c94ed7a1 JJ |
383 | tree fndecl, ao; |
384 | ||
385 | if (abstract_origin) | |
386 | { | |
387 | ao = BLOCK_ABSTRACT_ORIGIN (abstract_origin); | |
c94ed7a1 JJ |
388 | gcc_assert (TREE_CODE (ao) == FUNCTION_DECL); |
389 | fndecl = ao; | |
390 | } | |
391 | else | |
392 | fndecl = current_function_decl; | |
393 | ||
394 | if (TREE_CODE (TREE_TYPE (fndecl)) == METHOD_TYPE) | |
dba65e79 | 395 | pp_printf |
c94ed7a1 | 396 | (context->printer, _("In member function %qs"), |
4f1e4960 | 397 | identifier_to_locale (lang_hooks.decl_printable_name (fndecl, 2))); |
dba65e79 GDR |
398 | else |
399 | pp_printf | |
c94ed7a1 | 400 | (context->printer, _("In function %qs"), |
4f1e4960 | 401 | identifier_to_locale (lang_hooks.decl_printable_name (fndecl, 2))); |
c94ed7a1 JJ |
402 | |
403 | while (abstract_origin) | |
404 | { | |
405 | location_t *locus; | |
406 | tree block = abstract_origin; | |
407 | ||
408 | locus = &BLOCK_SOURCE_LOCATION (block); | |
409 | fndecl = NULL; | |
410 | block = BLOCK_SUPERCONTEXT (block); | |
411 | while (block && TREE_CODE (block) == BLOCK | |
412 | && BLOCK_ABSTRACT_ORIGIN (block)) | |
413 | { | |
414 | ao = BLOCK_ABSTRACT_ORIGIN (block); | |
c94ed7a1 JJ |
415 | if (TREE_CODE (ao) == FUNCTION_DECL) |
416 | { | |
417 | fndecl = ao; | |
418 | break; | |
419 | } | |
420 | else if (TREE_CODE (ao) != BLOCK) | |
421 | break; | |
422 | ||
423 | block = BLOCK_SUPERCONTEXT (block); | |
424 | } | |
425 | if (fndecl) | |
426 | abstract_origin = block; | |
427 | else | |
428 | { | |
429 | while (block && TREE_CODE (block) == BLOCK) | |
430 | block = BLOCK_SUPERCONTEXT (block); | |
431 | ||
91ab2c86 | 432 | if (block && TREE_CODE (block) == FUNCTION_DECL) |
c94ed7a1 JJ |
433 | fndecl = block; |
434 | abstract_origin = NULL; | |
435 | } | |
436 | if (fndecl) | |
437 | { | |
438 | expanded_location s = expand_location (*locus); | |
07838b13 | 439 | pp_comma (context->printer); |
c94ed7a1 JJ |
440 | pp_newline (context->printer); |
441 | if (s.file != NULL) | |
442 | { | |
243fbddd | 443 | if (context->show_column) |
c94ed7a1 | 444 | pp_printf (context->printer, |
4b84d650 | 445 | _(" inlined from %qs at %r%s:%d:%d%R"), |
4f1e4960 | 446 | identifier_to_locale (lang_hooks.decl_printable_name (fndecl, 2)), |
4b84d650 | 447 | "locus", s.file, s.line, s.column); |
c94ed7a1 | 448 | else |
c94ed7a1 | 449 | pp_printf (context->printer, |
4b84d650 | 450 | _(" inlined from %qs at %r%s:%d%R"), |
4f1e4960 | 451 | identifier_to_locale (lang_hooks.decl_printable_name (fndecl, 2)), |
4b84d650 | 452 | "locus", s.file, s.line); |
c94ed7a1 JJ |
453 | |
454 | } | |
455 | else | |
456 | pp_printf (context->printer, _(" inlined from %qs"), | |
4f1e4960 | 457 | identifier_to_locale (lang_hooks.decl_printable_name (fndecl, 2))); |
c94ed7a1 JJ |
458 | } |
459 | } | |
07838b13 | 460 | pp_colon (context->printer); |
dba65e79 | 461 | } |
dba65e79 | 462 | |
c94ed7a1 | 463 | diagnostic_set_last_function (context, diagnostic); |
f8923f7e | 464 | pp_newline_and_flush (context->printer); |
dba65e79 GDR |
465 | context->printer->prefix = old_prefix; |
466 | free ((char*) new_prefix); | |
467 | } | |
468 | } | |
469 | ||
b9dcdee4 JH |
470 | tree |
471 | lhd_make_node (enum tree_code code) | |
472 | { | |
473 | return make_node (code); | |
474 | } | |
c5ff069d | 475 | |
8a3a6ab4 DM |
476 | /* Default implementation of LANG_HOOKS_TYPE_FOR_SIZE. |
477 | Return an integer type with PRECISION bits of precision, | |
478 | that is unsigned if UNSIGNEDP is nonzero, otherwise signed. */ | |
479 | ||
480 | tree | |
481 | lhd_type_for_size (unsigned precision, int unsignedp) | |
482 | { | |
483 | int i; | |
484 | ||
485 | if (precision == TYPE_PRECISION (integer_type_node)) | |
486 | return unsignedp ? unsigned_type_node : integer_type_node; | |
487 | ||
488 | if (precision == TYPE_PRECISION (signed_char_type_node)) | |
489 | return unsignedp ? unsigned_char_type_node : signed_char_type_node; | |
490 | ||
491 | if (precision == TYPE_PRECISION (short_integer_type_node)) | |
492 | return unsignedp ? short_unsigned_type_node : short_integer_type_node; | |
493 | ||
494 | if (precision == TYPE_PRECISION (long_integer_type_node)) | |
495 | return unsignedp ? long_unsigned_type_node : long_integer_type_node; | |
496 | ||
497 | if (precision == TYPE_PRECISION (long_long_integer_type_node)) | |
498 | return unsignedp | |
499 | ? long_long_unsigned_type_node | |
500 | : long_long_integer_type_node; | |
501 | ||
502 | for (i = 0; i < NUM_INT_N_ENTS; i ++) | |
503 | if (int_n_enabled_p[i] | |
504 | && precision == int_n_data[i].bitsize) | |
505 | return (unsignedp ? int_n_trees[i].unsigned_type | |
506 | : int_n_trees[i].signed_type); | |
507 | ||
508 | if (precision <= TYPE_PRECISION (intQI_type_node)) | |
509 | return unsignedp ? unsigned_intQI_type_node : intQI_type_node; | |
510 | ||
511 | if (precision <= TYPE_PRECISION (intHI_type_node)) | |
512 | return unsignedp ? unsigned_intHI_type_node : intHI_type_node; | |
513 | ||
514 | if (precision <= TYPE_PRECISION (intSI_type_node)) | |
515 | return unsignedp ? unsigned_intSI_type_node : intSI_type_node; | |
516 | ||
517 | if (precision <= TYPE_PRECISION (intDI_type_node)) | |
518 | return unsignedp ? unsigned_intDI_type_node : intDI_type_node; | |
519 | ||
520 | if (precision <= TYPE_PRECISION (intTI_type_node)) | |
521 | return unsignedp ? unsigned_intTI_type_node : intTI_type_node; | |
522 | ||
523 | return NULL_TREE; | |
524 | } | |
525 | ||
c5ff069d ZW |
526 | HOST_WIDE_INT |
527 | lhd_to_target_charset (HOST_WIDE_INT c) | |
528 | { | |
529 | return c; | |
530 | } | |
73f397d4 JM |
531 | |
532 | tree | |
51eed280 | 533 | lhd_expr_to_decl (tree expr, bool *tc ATTRIBUTE_UNUSED, bool *se ATTRIBUTE_UNUSED) |
73f397d4 JM |
534 | { |
535 | return expr; | |
536 | } | |
953ff289 DN |
537 | |
538 | /* Return sharing kind if OpenMP sharing attribute of DECL is | |
539 | predetermined, OMP_CLAUSE_DEFAULT_UNSPECIFIED otherwise. */ | |
540 | ||
541 | enum omp_clause_default_kind | |
542 | lhd_omp_predetermined_sharing (tree decl ATTRIBUTE_UNUSED) | |
543 | { | |
544 | if (DECL_ARTIFICIAL (decl)) | |
545 | return OMP_CLAUSE_DEFAULT_SHARED; | |
546 | return OMP_CLAUSE_DEFAULT_UNSPECIFIED; | |
547 | } | |
548 | ||
549 | /* Generate code to copy SRC to DST. */ | |
550 | ||
551 | tree | |
552 | lhd_omp_assignment (tree clause ATTRIBUTE_UNUSED, tree dst, tree src) | |
553 | { | |
726a989a | 554 | return build2 (MODIFY_EXPR, TREE_TYPE (dst), dst, src); |
953ff289 DN |
555 | } |
556 | ||
f014c653 JJ |
557 | /* Finalize clause C. */ |
558 | ||
559 | void | |
560 | lhd_omp_finish_clause (tree, gimple_seq *) | |
561 | { | |
562 | } | |
563 | ||
b4c3a85b JJ |
564 | /* Return true if DECL is a scalar variable (for the purpose of |
565 | implicit firstprivatization). */ | |
566 | ||
567 | bool | |
568 | lhd_omp_scalar_p (tree decl) | |
569 | { | |
570 | tree type = TREE_TYPE (decl); | |
571 | if (TREE_CODE (type) == REFERENCE_TYPE) | |
572 | type = TREE_TYPE (type); | |
573 | if (TREE_CODE (type) == COMPLEX_TYPE) | |
574 | type = TREE_TYPE (type); | |
575 | if (INTEGRAL_TYPE_P (type) | |
576 | || SCALAR_FLOAT_TYPE_P (type) | |
577 | || TREE_CODE (type) == POINTER_TYPE) | |
578 | return true; | |
579 | return false; | |
580 | } | |
581 | ||
953ff289 DN |
582 | /* Register language specific type size variables as potentially OpenMP |
583 | firstprivate variables. */ | |
584 | ||
585 | void | |
586 | lhd_omp_firstprivatize_type_sizes (struct gimplify_omp_ctx *c ATTRIBUTE_UNUSED, | |
587 | tree t ATTRIBUTE_UNUSED) | |
588 | { | |
589 | } | |
c79efc4d | 590 | |
b17a8b07 | 591 | /* Return true if TYPE is an OpenMP mappable type. */ |
acf0174b JJ |
592 | |
593 | bool | |
594 | lhd_omp_mappable_type (tree type) | |
595 | { | |
b17a8b07 TS |
596 | /* Mappable type has to be complete. */ |
597 | if (type == error_mark_node || !COMPLETE_TYPE_P (type)) | |
598 | return false; | |
599 | return true; | |
acf0174b JJ |
600 | } |
601 | ||
5779e713 MM |
602 | /* Common function for add_builtin_function and |
603 | add_builtin_function_ext_scope. */ | |
604 | static tree | |
605 | add_builtin_function_common (const char *name, | |
606 | tree type, | |
607 | int function_code, | |
608 | enum built_in_class cl, | |
609 | const char *library_name, | |
610 | tree attrs, | |
611 | tree (*hook) (tree)) | |
c79efc4d RÁE |
612 | { |
613 | tree id = get_identifier (name); | |
c2255bc4 | 614 | tree decl = build_decl (BUILTINS_LOCATION, FUNCTION_DECL, id, type); |
c79efc4d RÁE |
615 | |
616 | TREE_PUBLIC (decl) = 1; | |
617 | DECL_EXTERNAL (decl) = 1; | |
618 | DECL_BUILT_IN_CLASS (decl) = cl; | |
c536a6a7 | 619 | |
32e8bb8e ILT |
620 | DECL_FUNCTION_CODE (decl) = (enum built_in_function) function_code; |
621 | ||
622 | /* DECL_FUNCTION_CODE is a bitfield; verify that the value fits. */ | |
623 | gcc_assert (DECL_FUNCTION_CODE (decl) == function_code); | |
c79efc4d | 624 | |
428aba16 RS |
625 | if (library_name) |
626 | { | |
627 | tree libname = get_identifier (library_name); | |
72b1108c NS |
628 | |
629 | libname = targetm.mangle_decl_assembler_name (decl, libname); | |
428aba16 RS |
630 | SET_DECL_ASSEMBLER_NAME (decl, libname); |
631 | } | |
c79efc4d RÁE |
632 | |
633 | /* Possibly apply some default attributes to this built-in function. */ | |
634 | if (attrs) | |
635 | decl_attributes (&decl, attrs, ATTR_FLAG_BUILT_IN); | |
636 | else | |
637 | decl_attributes (&decl, NULL_TREE, 0); | |
638 | ||
5779e713 MM |
639 | return hook (decl); |
640 | ||
641 | } | |
642 | ||
643 | /* Create a builtin function. */ | |
644 | ||
645 | tree | |
646 | add_builtin_function (const char *name, | |
647 | tree type, | |
648 | int function_code, | |
649 | enum built_in_class cl, | |
650 | const char *library_name, | |
651 | tree attrs) | |
652 | { | |
653 | return add_builtin_function_common (name, type, function_code, cl, | |
654 | library_name, attrs, | |
655 | lang_hooks.builtin_function); | |
656 | } | |
c79efc4d | 657 | |
5779e713 MM |
658 | /* Like add_builtin_function, but make sure the scope is the external scope. |
659 | This is used to delay putting in back end builtin functions until the ISA | |
660 | that defines the builtin is declared via function specific target options, | |
661 | which can save memory for machines like the x86_64 that have multiple ISAs. | |
662 | If this points to the same function as builtin_function, the backend must | |
663 | add all of the builtins at program initialization time. */ | |
664 | ||
665 | tree | |
666 | add_builtin_function_ext_scope (const char *name, | |
667 | tree type, | |
668 | int function_code, | |
669 | enum built_in_class cl, | |
670 | const char *library_name, | |
671 | tree attrs) | |
672 | { | |
673 | return add_builtin_function_common (name, type, function_code, cl, | |
674 | library_name, attrs, | |
675 | lang_hooks.builtin_function_ext_scope); | |
c79efc4d RÁE |
676 | } |
677 | ||
678 | tree | |
679 | lhd_builtin_function (tree decl) | |
680 | { | |
681 | lang_hooks.decls.pushdecl (decl); | |
682 | return decl; | |
683 | } | |
d7f09764 | 684 | |
c0814136 SB |
685 | /* Create a builtin type. */ |
686 | ||
687 | tree | |
688 | add_builtin_type (const char *name, tree type) | |
689 | { | |
690 | tree id = get_identifier (name); | |
691 | tree decl = build_decl (BUILTINS_LOCATION, TYPE_DECL, id, type); | |
692 | return lang_hooks.decls.pushdecl (decl); | |
693 | } | |
694 | ||
d7f09764 DN |
695 | /* LTO hooks. */ |
696 | ||
697 | /* Used to save and restore any previously active section. */ | |
698 | static section *saved_section; | |
699 | ||
700 | ||
701 | /* Begin a new LTO output section named NAME. This default implementation | |
702 | saves the old section and emits assembly code to switch to the new | |
703 | section. */ | |
704 | ||
705 | void | |
706 | lhd_begin_section (const char *name) | |
707 | { | |
708 | section *section; | |
709 | ||
710 | /* Save the old section so we can restore it in lto_end_asm_section. */ | |
711 | gcc_assert (!saved_section); | |
712 | saved_section = in_section; | |
cb799353 RG |
713 | if (!saved_section) |
714 | saved_section = text_section; | |
d7f09764 DN |
715 | |
716 | /* Create a new section and switch to it. */ | |
d856054b | 717 | section = get_section (name, SECTION_DEBUG | SECTION_EXCLUDE, NULL); |
d7f09764 DN |
718 | switch_to_section (section); |
719 | } | |
720 | ||
721 | ||
722 | /* Write DATA of length LEN to the current LTO output section. This default | |
f6bcdb5e | 723 | implementation just calls assemble_string. */ |
d7f09764 DN |
724 | |
725 | void | |
f6bcdb5e | 726 | lhd_append_data (const void *data, size_t len, void *) |
d7f09764 DN |
727 | { |
728 | if (data) | |
ed7dc894 JH |
729 | { |
730 | timevar_push (TV_IPA_LTO_OUTPUT); | |
731 | assemble_string ((const char *)data, len); | |
732 | timevar_pop (TV_IPA_LTO_OUTPUT); | |
733 | } | |
d7f09764 DN |
734 | } |
735 | ||
736 | ||
737 | /* Finish the current LTO output section. This default implementation emits | |
738 | assembly code to switch to any section previously saved by | |
739 | lhd_begin_section. */ | |
740 | ||
741 | void | |
742 | lhd_end_section (void) | |
743 | { | |
744 | if (saved_section) | |
745 | { | |
746 | switch_to_section (saved_section); | |
747 | saved_section = NULL; | |
748 | } | |
749 | } | |
7315daa6 MW |
750 | |
751 | /* Default implementation of enum_underlying_base_type using type_for_size. */ | |
752 | ||
753 | tree | |
754 | lhd_enum_underlying_base_type (const_tree enum_type) | |
755 | { | |
756 | return lang_hooks.types.type_for_size (TYPE_PRECISION (enum_type), | |
757 | TYPE_UNSIGNED (enum_type)); | |
758 | } | |
dcc97066 | 759 | |
e5106e27 DM |
760 | /* Default implementation of LANG_HOOKS_GET_SUBSTRING_LOCATION. */ |
761 | ||
762 | const char * | |
763 | lhd_get_substring_location (const substring_loc &, location_t *) | |
764 | { | |
765 | return "unimplemented"; | |
766 | } | |
767 | ||
81b42cc6 JJ |
768 | /* Default implementation of LANG_HOOKS_DECL_DWARF_ATTRIBUTE. Don't add |
769 | any attributes. */ | |
770 | ||
771 | int | |
772 | lhd_decl_dwarf_attribute (const_tree, int) | |
773 | { | |
774 | return -1; | |
775 | } | |
776 | ||
6905c577 JJ |
777 | /* Default implementation of LANG_HOOKS_TYPE_DWARF_ATTRIBUTE. Don't add |
778 | any attributes. */ | |
779 | ||
780 | int | |
781 | lhd_type_dwarf_attribute (const_tree, int) | |
782 | { | |
783 | return -1; | |
784 | } | |
785 | ||
b7fc43d7 RB |
786 | /* Default implementation of LANG_HOOKS_UNIT_SIZE_WITHOUT_REUSABLE_PADDING. |
787 | Just return TYPE_SIZE_UNIT unadjusted. */ | |
788 | ||
789 | tree | |
790 | lhd_unit_size_without_reusable_padding (tree t) | |
791 | { | |
792 | return TYPE_SIZE_UNIT (t); | |
793 | } | |
794 | ||
dcc97066 MW |
795 | /* Returns true if the current lang_hooks represents the GNU C frontend. */ |
796 | ||
797 | bool | |
798 | lang_GNU_C (void) | |
799 | { | |
800 | return (strncmp (lang_hooks.name, "GNU C", 5) == 0 | |
801 | && (lang_hooks.name[5] == '\0' || ISDIGIT (lang_hooks.name[5]))); | |
802 | } | |
803 | ||
804 | /* Returns true if the current lang_hooks represents the GNU C++ frontend. */ | |
805 | ||
806 | bool | |
807 | lang_GNU_CXX (void) | |
808 | { | |
809 | return strncmp (lang_hooks.name, "GNU C++", 7) == 0; | |
810 | } | |
de3aebff JJ |
811 | |
812 | /* Returns true if the current lang_hooks represents the GNU Fortran frontend. */ | |
813 | ||
814 | bool | |
815 | lang_GNU_Fortran (void) | |
816 | { | |
817 | return strncmp (lang_hooks.name, "GNU Fortran", 11) == 0; | |
818 | } | |
81fea426 MP |
819 | |
820 | /* Returns true if the current lang_hooks represents the GNU Objective-C | |
821 | frontend. */ | |
822 | ||
823 | bool | |
824 | lang_GNU_OBJC (void) | |
825 | { | |
826 | return strncmp (lang_hooks.name, "GNU Objective-C", 15) == 0; | |
827 | } |