]>
Commit | Line | Data |
---|---|---|
27bf414c | 1 | /* Parser for C and Objective-C. |
8d9254fc | 2 | Copyright (C) 1987-2020 Free Software Foundation, Inc. |
27bf414c JM |
3 | |
4 | Parser actions based on the old Bison parser; structure somewhat | |
5 | influenced by and fragments based on the C++ parser. | |
6 | ||
7 | This file is part of GCC. | |
8 | ||
9 | GCC is free software; you can redistribute it and/or modify it under | |
10 | the terms of the GNU General Public License as published by the Free | |
9dcd6f09 | 11 | Software Foundation; either version 3, or (at your option) any later |
27bf414c JM |
12 | version. |
13 | ||
14 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
15 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
16 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
17 | for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
9dcd6f09 NC |
20 | along with GCC; see the file COPYING3. If not see |
21 | <http://www.gnu.org/licenses/>. */ | |
27bf414c JM |
22 | |
23 | /* TODO: | |
24 | ||
25 | Make sure all relevant comments, and all relevant code from all | |
26 | actions, brought over from old parser. Verify exact correspondence | |
27 | of syntax accepted. | |
28 | ||
29 | Add testcases covering every input symbol in every state in old and | |
30 | new parsers. | |
31 | ||
32 | Include full syntax for GNU C, including erroneous cases accepted | |
33 | with error messages, in syntax productions in comments. | |
34 | ||
35 | Make more diagnostics in the front end generally take an explicit | |
36 | location rather than implicitly using input_location. */ | |
37 | ||
38 | #include "config.h" | |
6c7a259b | 39 | #define INCLUDE_UNIQUE_PTR |
27bf414c JM |
40 | #include "system.h" |
41 | #include "coretypes.h" | |
2adfab87 AM |
42 | #include "target.h" |
43 | #include "function.h" | |
2adfab87 AM |
44 | #include "c-tree.h" |
45 | #include "timevar.h" | |
d8a2d370 | 46 | #include "stringpool.h" |
2adfab87 | 47 | #include "cgraph.h" |
d8a2d370 DN |
48 | #include "attribs.h" |
49 | #include "stor-layout.h" | |
50 | #include "varasm.h" | |
51 | #include "trans-mem.h" | |
39dabefd | 52 | #include "c-family/c-pragma.h" |
acf0174b | 53 | #include "c-lang.h" |
61d3ce20 | 54 | #include "c-family/c-objc.h" |
68a607d8 | 55 | #include "plugin.h" |
629b3d75 MJ |
56 | #include "omp-general.h" |
57 | #include "omp-offload.h" | |
9b2b7279 | 58 | #include "builtins.h" |
41dbbb37 | 59 | #include "gomp-constants.h" |
992118a1 | 60 | #include "c-family/c-indentation.h" |
e01d41e5 JJ |
61 | #include "gimple-expr.h" |
62 | #include "context.h" | |
1a4f11c8 | 63 | #include "gcc-rich-location.h" |
1ee62b92 PG |
64 | #include "c-parser.h" |
65 | #include "gimple-parser.h" | |
c2e84327 DM |
66 | #include "read-rtl-function.h" |
67 | #include "run-rtl-passes.h" | |
324ff1a0 | 68 | #include "intl.h" |
6c7a259b | 69 | #include "c-family/name-hint.h" |
65791f42 | 70 | #include "tree-iterator.h" |
28567c40 | 71 | #include "memmodel.h" |
27bf414c | 72 | |
d25c7690 PK |
73 | /* We need to walk over decls with incomplete struct/union/enum types |
74 | after parsing the whole translation unit. | |
75 | In finish_decl(), if the decl is static, has incomplete | |
76 | struct/union/enum type, it is appeneded to incomplete_record_decls. | |
77 | In c_parser_translation_unit(), we iterate over incomplete_record_decls | |
78 | and report error if any of the decls are still incomplete. */ | |
79 | ||
7de76362 | 80 | vec<tree> incomplete_record_decls; |
d25c7690 | 81 | |
ebedc9a3 DM |
82 | void |
83 | set_c_expr_source_range (c_expr *expr, | |
84 | location_t start, location_t finish) | |
85 | { | |
86 | expr->src_range.m_start = start; | |
87 | expr->src_range.m_finish = finish; | |
bef08b71 DM |
88 | if (expr->value) |
89 | set_source_range (expr->value, start, finish); | |
ebedc9a3 DM |
90 | } |
91 | ||
92 | void | |
93 | set_c_expr_source_range (c_expr *expr, | |
94 | source_range src_range) | |
95 | { | |
96 | expr->src_range = src_range; | |
bef08b71 DM |
97 | if (expr->value) |
98 | set_source_range (expr->value, src_range); | |
ebedc9a3 DM |
99 | } |
100 | ||
27bf414c | 101 | \f |
27bf414c JM |
102 | /* Initialization routine for this file. */ |
103 | ||
104 | void | |
105 | c_parse_init (void) | |
106 | { | |
107 | /* The only initialization required is of the reserved word | |
108 | identifiers. */ | |
109 | unsigned int i; | |
110 | tree id; | |
eea1139b | 111 | int mask = 0; |
27bf414c | 112 | |
36c5e70a BE |
113 | /* Make sure RID_MAX hasn't grown past the 8 bits used to hold the keyword in |
114 | the c_token structure. */ | |
115 | gcc_assert (RID_MAX <= 255); | |
116 | ||
eea1139b ILT |
117 | mask |= D_CXXONLY; |
118 | if (!flag_isoc99) | |
119 | mask |= D_C99; | |
120 | if (flag_no_asm) | |
121 | { | |
122 | mask |= D_ASM | D_EXT; | |
123 | if (!flag_isoc99) | |
124 | mask |= D_EXT89; | |
125 | } | |
27bf414c | 126 | if (!c_dialect_objc ()) |
eea1139b | 127 | mask |= D_OBJC | D_CXX_OBJC; |
27bf414c | 128 | |
766090c2 | 129 | ridpointers = ggc_cleared_vec_alloc<tree> ((int) RID_MAX); |
eea1139b | 130 | for (i = 0; i < num_c_common_reswords; i++) |
27bf414c JM |
131 | { |
132 | /* If a keyword is disabled, do not enter it into the table | |
133 | and so create a canonical spelling that isn't a keyword. */ | |
eea1139b ILT |
134 | if (c_common_reswords[i].disable & mask) |
135 | { | |
136 | if (warn_cxx_compat | |
137 | && (c_common_reswords[i].disable & D_CXXWARN)) | |
138 | { | |
139 | id = get_identifier (c_common_reswords[i].word); | |
140 | C_SET_RID_CODE (id, RID_CXX_COMPAT_WARN); | |
141 | C_IS_RESERVED_WORD (id) = 1; | |
142 | } | |
143 | continue; | |
144 | } | |
27bf414c | 145 | |
eea1139b ILT |
146 | id = get_identifier (c_common_reswords[i].word); |
147 | C_SET_RID_CODE (id, c_common_reswords[i].rid); | |
27bf414c | 148 | C_IS_RESERVED_WORD (id) = 1; |
eea1139b | 149 | ridpointers [(int) c_common_reswords[i].rid] = id; |
27bf414c | 150 | } |
78a7c317 DD |
151 | |
152 | for (i = 0; i < NUM_INT_N_ENTS; i++) | |
153 | { | |
154 | /* We always create the symbols but they aren't always supported. */ | |
155 | char name[50]; | |
156 | sprintf (name, "__int%d", int_n_data[i].bitsize); | |
17958621 | 157 | id = get_identifier (name); |
78a7c317 DD |
158 | C_SET_RID_CODE (id, RID_FIRST_INT_N + i); |
159 | C_IS_RESERVED_WORD (id) = 1; | |
5e580306 JL |
160 | |
161 | sprintf (name, "__int%d__", int_n_data[i].bitsize); | |
162 | id = get_identifier (name); | |
163 | C_SET_RID_CODE (id, RID_FIRST_INT_N + i); | |
164 | C_IS_RESERVED_WORD (id) = 1; | |
78a7c317 | 165 | } |
27bf414c JM |
166 | } |
167 | \f | |
27bf414c JM |
168 | /* A parser structure recording information about the state and |
169 | context of parsing. Includes lexer information with up to two | |
170 | tokens of look-ahead; more are not needed for C. */ | |
a79683d5 | 171 | struct GTY(()) c_parser { |
27bf414c | 172 | /* The look-ahead tokens. */ |
acf0174b JJ |
173 | c_token * GTY((skip)) tokens; |
174 | /* Buffer for look-ahead tokens. */ | |
de67c4c3 DM |
175 | c_token tokens_buf[4]; |
176 | /* How many look-ahead tokens are available (0 - 4, or | |
acf0174b JJ |
177 | more if parsing from pre-lexed tokens). */ |
178 | unsigned int tokens_avail; | |
34b43828 JM |
179 | /* Raw look-ahead tokens, used only for checking in Objective-C |
180 | whether '[[' starts attributes. */ | |
181 | vec<c_token, va_gc> *raw_tokens; | |
182 | /* The number of raw look-ahead tokens that have since been fully | |
183 | lexed. */ | |
184 | unsigned int raw_tokens_used; | |
27bf414c JM |
185 | /* True if a syntax error is being recovered from; false otherwise. |
186 | c_parser_error sets this flag. It should clear this flag when | |
187 | enough tokens have been consumed to recover from the error. */ | |
188 | BOOL_BITFIELD error : 1; | |
bc4071dd RH |
189 | /* True if we're processing a pragma, and shouldn't automatically |
190 | consume CPP_PRAGMA_EOL. */ | |
191 | BOOL_BITFIELD in_pragma : 1; | |
b4b56033 MLI |
192 | /* True if we're parsing the outermost block of an if statement. */ |
193 | BOOL_BITFIELD in_if_block : 1; | |
471c5330 JM |
194 | /* True if we want to lex a translated, joined string (for an |
195 | initial #pragma pch_preprocess). Otherwise the parser is | |
196 | responsible for concatenating strings and translating to the | |
197 | execution character set as needed. */ | |
198 | BOOL_BITFIELD lex_joined_string : 1; | |
199 | /* True if, when the parser is concatenating string literals, it | |
200 | should translate them to the execution character set (false | |
201 | inside attributes). */ | |
202 | BOOL_BITFIELD translate_strings_p : 1; | |
1973201f | 203 | |
0bacb8c7 | 204 | /* Objective-C specific parser/lexer information. */ |
1973201f NP |
205 | |
206 | /* True if we are in a context where the Objective-C "PQ" keywords | |
207 | are considered keywords. */ | |
0bacb8c7 | 208 | BOOL_BITFIELD objc_pq_context : 1; |
f05b9d93 NP |
209 | /* True if we are parsing a (potential) Objective-C foreach |
210 | statement. This is set to true after we parsed 'for (' and while | |
211 | we wait for 'in' or ';' to decide if it's a standard C for loop or an | |
212 | Objective-C foreach loop. */ | |
213 | BOOL_BITFIELD objc_could_be_foreach_context : 1; | |
0bacb8c7 TT |
214 | /* The following flag is needed to contextualize Objective-C lexical |
215 | analysis. In some cases (e.g., 'int NSObject;'), it is | |
216 | undesirable to bind an identifier to an Objective-C class, even | |
217 | if a class with that name exists. */ | |
218 | BOOL_BITFIELD objc_need_raw_identifier : 1; | |
0a35513e AH |
219 | /* Nonzero if we're processing a __transaction statement. The value |
220 | is 1 | TM_STMT_ATTR_*. */ | |
221 | unsigned int in_transaction : 4; | |
668ea4b1 IS |
222 | /* True if we are in a context where the Objective-C "Property attribute" |
223 | keywords are valid. */ | |
224 | BOOL_BITFIELD objc_property_attr_context : 1; | |
41958c28 | 225 | |
8139a48e DM |
226 | /* Location of the last consumed token. */ |
227 | location_t last_token_location; | |
a79683d5 | 228 | }; |
27bf414c | 229 | |
1ee62b92 PG |
230 | /* Return a pointer to the Nth token in PARSERs tokens_buf. */ |
231 | ||
232 | c_token * | |
233 | c_parser_tokens_buf (c_parser *parser, unsigned n) | |
234 | { | |
235 | return &parser->tokens_buf[n]; | |
236 | } | |
237 | ||
238 | /* Return the error state of PARSER. */ | |
239 | ||
240 | bool | |
241 | c_parser_error (c_parser *parser) | |
242 | { | |
243 | return parser->error; | |
244 | } | |
245 | ||
246 | /* Set the error state of PARSER to ERR. */ | |
247 | ||
248 | void | |
249 | c_parser_set_error (c_parser *parser, bool err) | |
250 | { | |
251 | parser->error = err; | |
252 | } | |
253 | ||
bc4071dd RH |
254 | |
255 | /* The actual parser and external interface. ??? Does this need to be | |
256 | garbage-collected? */ | |
257 | ||
258 | static GTY (()) c_parser *the_parser; | |
259 | ||
34b43828 JM |
260 | /* Read in and lex a single token, storing it in *TOKEN. If RAW, |
261 | context-sensitive postprocessing of the token is not done. */ | |
27bf414c JM |
262 | |
263 | static void | |
34b43828 | 264 | c_lex_one_token (c_parser *parser, c_token *token, bool raw = false) |
27bf414c JM |
265 | { |
266 | timevar_push (TV_LEX); | |
bc4071dd | 267 | |
34b43828 JM |
268 | if (raw || vec_safe_length (parser->raw_tokens) == 0) |
269 | { | |
270 | token->type = c_lex_with_flags (&token->value, &token->location, | |
271 | &token->flags, | |
272 | (parser->lex_joined_string | |
273 | ? 0 : C_LEX_STRING_NO_JOIN)); | |
274 | token->id_kind = C_ID_NONE; | |
275 | token->keyword = RID_MAX; | |
276 | token->pragma_kind = PRAGMA_NONE; | |
277 | } | |
278 | else | |
279 | { | |
280 | /* Use a token previously lexed as a raw look-ahead token, and | |
281 | complete the processing on it. */ | |
282 | *token = (*parser->raw_tokens)[parser->raw_tokens_used]; | |
283 | ++parser->raw_tokens_used; | |
284 | if (parser->raw_tokens_used == vec_safe_length (parser->raw_tokens)) | |
285 | { | |
286 | vec_free (parser->raw_tokens); | |
287 | parser->raw_tokens_used = 0; | |
288 | } | |
289 | } | |
290 | ||
291 | if (raw) | |
292 | goto out; | |
bc4071dd | 293 | |
27bf414c JM |
294 | switch (token->type) |
295 | { | |
296 | case CPP_NAME: | |
27bf414c JM |
297 | { |
298 | tree decl; | |
299 | ||
0bacb8c7 TT |
300 | bool objc_force_identifier = parser->objc_need_raw_identifier; |
301 | if (c_dialect_objc ()) | |
302 | parser->objc_need_raw_identifier = false; | |
27bf414c JM |
303 | |
304 | if (C_IS_RESERVED_WORD (token->value)) | |
305 | { | |
306 | enum rid rid_code = C_RID_CODE (token->value); | |
307 | ||
eea1139b ILT |
308 | if (rid_code == RID_CXX_COMPAT_WARN) |
309 | { | |
3ba09659 AH |
310 | warning_at (token->location, |
311 | OPT_Wc___compat, | |
88388a52 JM |
312 | "identifier %qE conflicts with C++ keyword", |
313 | token->value); | |
eea1139b | 314 | } |
36c5e70a BE |
315 | else if (rid_code >= RID_FIRST_ADDR_SPACE |
316 | && rid_code <= RID_LAST_ADDR_SPACE) | |
317 | { | |
ffc22840 GJL |
318 | addr_space_t as; |
319 | as = (addr_space_t) (rid_code - RID_FIRST_ADDR_SPACE); | |
320 | targetm.addr_space.diagnose_usage (as, token->location); | |
36c5e70a BE |
321 | token->id_kind = C_ID_ADDRSPACE; |
322 | token->keyword = rid_code; | |
323 | break; | |
324 | } | |
1973201f | 325 | else if (c_dialect_objc () && OBJC_IS_PQ_KEYWORD (rid_code)) |
27bf414c | 326 | { |
1973201f NP |
327 | /* We found an Objective-C "pq" keyword (in, out, |
328 | inout, bycopy, byref, oneway). They need special | |
329 | care because the interpretation depends on the | |
d853ee42 | 330 | context. */ |
1973201f | 331 | if (parser->objc_pq_context) |
27bf414c | 332 | { |
27bf414c JM |
333 | token->type = CPP_KEYWORD; |
334 | token->keyword = rid_code; | |
335 | break; | |
336 | } | |
f05b9d93 NP |
337 | else if (parser->objc_could_be_foreach_context |
338 | && rid_code == RID_IN) | |
339 | { | |
340 | /* We are in Objective-C, inside a (potential) | |
341 | foreach context (which means after having | |
342 | parsed 'for (', but before having parsed ';'), | |
343 | and we found 'in'. We consider it the keyword | |
344 | which terminates the declaration at the | |
345 | beginning of a foreach-statement. Note that | |
346 | this means you can't use 'in' for anything else | |
347 | in that context; in particular, in Objective-C | |
348 | you can't use 'in' as the name of the running | |
349 | variable in a C for loop. We could potentially | |
350 | try to add code here to disambiguate, but it | |
d853ee42 | 351 | seems a reasonable limitation. */ |
f05b9d93 NP |
352 | token->type = CPP_KEYWORD; |
353 | token->keyword = rid_code; | |
354 | break; | |
355 | } | |
1973201f NP |
356 | /* Else, "pq" keywords outside of the "pq" context are |
357 | not keywords, and we fall through to the code for | |
d853ee42 | 358 | normal tokens. */ |
1973201f | 359 | } |
668ea4b1 IS |
360 | else if (c_dialect_objc () && OBJC_IS_PATTR_KEYWORD (rid_code)) |
361 | { | |
d853ee42 NP |
362 | /* We found an Objective-C "property attribute" |
363 | keyword (getter, setter, readonly, etc). These are | |
668ea4b1 IS |
364 | only valid in the property context. */ |
365 | if (parser->objc_property_attr_context) | |
366 | { | |
367 | token->type = CPP_KEYWORD; | |
368 | token->keyword = rid_code; | |
369 | break; | |
370 | } | |
371 | /* Else they are not special keywords. | |
372 | */ | |
373 | } | |
1973201f NP |
374 | else if (c_dialect_objc () |
375 | && (OBJC_IS_AT_KEYWORD (rid_code) | |
376 | || OBJC_IS_CXX_KEYWORD (rid_code))) | |
377 | { | |
378 | /* We found one of the Objective-C "@" keywords (defs, | |
379 | selector, synchronized, etc) or one of the | |
380 | Objective-C "cxx" keywords (class, private, | |
381 | protected, public, try, catch, throw) without a | |
382 | preceding '@' sign. Do nothing and fall through to | |
383 | the code for normal tokens (in C++ we would still | |
d853ee42 | 384 | consider the CXX ones keywords, but not in C). */ |
1973201f | 385 | ; |
27bf414c JM |
386 | } |
387 | else | |
388 | { | |
27bf414c JM |
389 | token->type = CPP_KEYWORD; |
390 | token->keyword = rid_code; | |
391 | break; | |
392 | } | |
393 | } | |
394 | ||
395 | decl = lookup_name (token->value); | |
396 | if (decl) | |
397 | { | |
398 | if (TREE_CODE (decl) == TYPE_DECL) | |
399 | { | |
400 | token->id_kind = C_ID_TYPENAME; | |
401 | break; | |
402 | } | |
403 | } | |
404 | else if (c_dialect_objc ()) | |
405 | { | |
406 | tree objc_interface_decl = objc_is_class_name (token->value); | |
407 | /* Objective-C class names are in the same namespace as | |
408 | variables and typedefs, and hence are shadowed by local | |
409 | declarations. */ | |
410 | if (objc_interface_decl | |
0d8a2528 | 411 | && (!objc_force_identifier || global_bindings_p ())) |
27bf414c JM |
412 | { |
413 | token->value = objc_interface_decl; | |
414 | token->id_kind = C_ID_CLASSNAME; | |
415 | break; | |
416 | } | |
417 | } | |
bc4071dd | 418 | token->id_kind = C_ID_ID; |
27bf414c | 419 | } |
27bf414c JM |
420 | break; |
421 | case CPP_AT_NAME: | |
422 | /* This only happens in Objective-C; it must be a keyword. */ | |
423 | token->type = CPP_KEYWORD; | |
49b91f05 NP |
424 | switch (C_RID_CODE (token->value)) |
425 | { | |
426 | /* Replace 'class' with '@class', 'private' with '@private', | |
427 | etc. This prevents confusion with the C++ keyword | |
428 | 'class', and makes the tokens consistent with other | |
429 | Objective-C 'AT' keywords. For example '@class' is | |
430 | reported as RID_AT_CLASS which is consistent with | |
431 | '@synchronized', which is reported as | |
432 | RID_AT_SYNCHRONIZED. | |
433 | */ | |
434 | case RID_CLASS: token->keyword = RID_AT_CLASS; break; | |
435 | case RID_PRIVATE: token->keyword = RID_AT_PRIVATE; break; | |
436 | case RID_PROTECTED: token->keyword = RID_AT_PROTECTED; break; | |
437 | case RID_PUBLIC: token->keyword = RID_AT_PUBLIC; break; | |
438 | case RID_THROW: token->keyword = RID_AT_THROW; break; | |
439 | case RID_TRY: token->keyword = RID_AT_TRY; break; | |
440 | case RID_CATCH: token->keyword = RID_AT_CATCH; break; | |
b8fd7909 | 441 | case RID_SYNCHRONIZED: token->keyword = RID_AT_SYNCHRONIZED; break; |
49b91f05 NP |
442 | default: token->keyword = C_RID_CODE (token->value); |
443 | } | |
27bf414c JM |
444 | break; |
445 | case CPP_COLON: | |
446 | case CPP_COMMA: | |
447 | case CPP_CLOSE_PAREN: | |
448 | case CPP_SEMICOLON: | |
449 | /* These tokens may affect the interpretation of any identifiers | |
450 | following, if doing Objective-C. */ | |
0bacb8c7 TT |
451 | if (c_dialect_objc ()) |
452 | parser->objc_need_raw_identifier = false; | |
bc4071dd RH |
453 | break; |
454 | case CPP_PRAGMA: | |
455 | /* We smuggled the cpp_token->u.pragma value in an INTEGER_CST. */ | |
d75d71e0 | 456 | token->pragma_kind = (enum pragma_kind) TREE_INT_CST_LOW (token->value); |
bc4071dd | 457 | token->value = NULL; |
27bf414c JM |
458 | break; |
459 | default: | |
27bf414c JM |
460 | break; |
461 | } | |
34b43828 | 462 | out: |
27bf414c JM |
463 | timevar_pop (TV_LEX); |
464 | } | |
465 | ||
466 | /* Return a pointer to the next token from PARSER, reading it in if | |
467 | necessary. */ | |
468 | ||
1ee62b92 | 469 | c_token * |
27bf414c JM |
470 | c_parser_peek_token (c_parser *parser) |
471 | { | |
472 | if (parser->tokens_avail == 0) | |
473 | { | |
0bacb8c7 | 474 | c_lex_one_token (parser, &parser->tokens[0]); |
27bf414c JM |
475 | parser->tokens_avail = 1; |
476 | } | |
477 | return &parser->tokens[0]; | |
478 | } | |
479 | ||
29ce73cb PB |
480 | /* Return a pointer to the next-but-one token from PARSER, reading it |
481 | in if necessary. The next token is already read in. */ | |
482 | ||
1ee62b92 | 483 | c_token * |
29ce73cb PB |
484 | c_parser_peek_2nd_token (c_parser *parser) |
485 | { | |
486 | if (parser->tokens_avail >= 2) | |
487 | return &parser->tokens[1]; | |
488 | gcc_assert (parser->tokens_avail == 1); | |
489 | gcc_assert (parser->tokens[0].type != CPP_EOF); | |
490 | gcc_assert (parser->tokens[0].type != CPP_PRAGMA_EOL); | |
491 | c_lex_one_token (parser, &parser->tokens[1]); | |
492 | parser->tokens_avail = 2; | |
493 | return &parser->tokens[1]; | |
494 | } | |
495 | ||
de67c4c3 DM |
496 | /* Return a pointer to the Nth token from PARSER, reading it |
497 | in if necessary. The N-1th token is already read in. */ | |
498 | ||
1ee62b92 | 499 | c_token * |
de67c4c3 DM |
500 | c_parser_peek_nth_token (c_parser *parser, unsigned int n) |
501 | { | |
502 | /* N is 1-based, not zero-based. */ | |
503 | gcc_assert (n > 0); | |
504 | ||
505 | if (parser->tokens_avail >= n) | |
506 | return &parser->tokens[n - 1]; | |
507 | gcc_assert (parser->tokens_avail == n - 1); | |
508 | c_lex_one_token (parser, &parser->tokens[n - 1]); | |
509 | parser->tokens_avail = n; | |
510 | return &parser->tokens[n - 1]; | |
511 | } | |
512 | ||
34b43828 JM |
513 | /* Return a pointer to the Nth token from PARSER, reading it in as a |
514 | raw look-ahead token if necessary. The N-1th token is already read | |
515 | in. Raw look-ahead tokens remain available for when the non-raw | |
516 | functions above are called. */ | |
517 | ||
518 | c_token * | |
519 | c_parser_peek_nth_token_raw (c_parser *parser, unsigned int n) | |
520 | { | |
521 | /* N is 1-based, not zero-based. */ | |
522 | gcc_assert (n > 0); | |
523 | ||
524 | if (parser->tokens_avail >= n) | |
525 | return &parser->tokens[n - 1]; | |
526 | unsigned int raw_len = vec_safe_length (parser->raw_tokens); | |
527 | unsigned int raw_avail | |
528 | = parser->tokens_avail + raw_len - parser->raw_tokens_used; | |
529 | gcc_assert (raw_avail >= n - 1); | |
530 | if (raw_avail >= n) | |
531 | return &(*parser->raw_tokens)[parser->raw_tokens_used | |
532 | + n - 1 - parser->tokens_avail]; | |
533 | vec_safe_reserve (parser->raw_tokens, 1); | |
534 | parser->raw_tokens->quick_grow (raw_len + 1); | |
535 | c_lex_one_token (parser, &(*parser->raw_tokens)[raw_len], true); | |
536 | return &(*parser->raw_tokens)[raw_len]; | |
537 | } | |
538 | ||
1a4f11c8 DM |
539 | bool |
540 | c_keyword_starts_typename (enum rid keyword) | |
541 | { | |
542 | switch (keyword) | |
543 | { | |
544 | case RID_UNSIGNED: | |
545 | case RID_LONG: | |
546 | case RID_SHORT: | |
547 | case RID_SIGNED: | |
548 | case RID_COMPLEX: | |
549 | case RID_INT: | |
550 | case RID_CHAR: | |
551 | case RID_FLOAT: | |
552 | case RID_DOUBLE: | |
553 | case RID_VOID: | |
554 | case RID_DFLOAT32: | |
555 | case RID_DFLOAT64: | |
556 | case RID_DFLOAT128: | |
c65699ef | 557 | CASE_RID_FLOATN_NX: |
1a4f11c8 DM |
558 | case RID_BOOL: |
559 | case RID_ENUM: | |
560 | case RID_STRUCT: | |
561 | case RID_UNION: | |
562 | case RID_TYPEOF: | |
563 | case RID_CONST: | |
564 | case RID_ATOMIC: | |
565 | case RID_VOLATILE: | |
566 | case RID_RESTRICT: | |
567 | case RID_ATTRIBUTE: | |
568 | case RID_FRACT: | |
569 | case RID_ACCUM: | |
570 | case RID_SAT: | |
571 | case RID_AUTO_TYPE: | |
4b2b493f | 572 | case RID_ALIGNAS: |
1a4f11c8 DM |
573 | return true; |
574 | default: | |
575 | if (keyword >= RID_FIRST_INT_N | |
576 | && keyword < RID_FIRST_INT_N + NUM_INT_N_ENTS | |
577 | && int_n_enabled_p[keyword - RID_FIRST_INT_N]) | |
578 | return true; | |
579 | return false; | |
580 | } | |
581 | } | |
582 | ||
27bf414c JM |
583 | /* Return true if TOKEN can start a type name, |
584 | false otherwise. */ | |
1ee62b92 | 585 | bool |
27bf414c JM |
586 | c_token_starts_typename (c_token *token) |
587 | { | |
588 | switch (token->type) | |
589 | { | |
590 | case CPP_NAME: | |
591 | switch (token->id_kind) | |
592 | { | |
593 | case C_ID_ID: | |
594 | return false; | |
36c5e70a BE |
595 | case C_ID_ADDRSPACE: |
596 | return true; | |
27bf414c JM |
597 | case C_ID_TYPENAME: |
598 | return true; | |
599 | case C_ID_CLASSNAME: | |
600 | gcc_assert (c_dialect_objc ()); | |
601 | return true; | |
602 | default: | |
603 | gcc_unreachable (); | |
604 | } | |
605 | case CPP_KEYWORD: | |
1a4f11c8 | 606 | return c_keyword_starts_typename (token->keyword); |
27bf414c JM |
607 | case CPP_LESS: |
608 | if (c_dialect_objc ()) | |
609 | return true; | |
610 | return false; | |
611 | default: | |
612 | return false; | |
613 | } | |
614 | } | |
615 | ||
616 | /* Return true if the next token from PARSER can start a type name, | |
29ce73cb PB |
617 | false otherwise. LA specifies how to do lookahead in order to |
618 | detect unknown type names. If unsure, pick CLA_PREFER_ID. */ | |
619 | ||
27bf414c | 620 | static inline bool |
29ce73cb | 621 | c_parser_next_tokens_start_typename (c_parser *parser, enum c_lookahead_kind la) |
27bf414c JM |
622 | { |
623 | c_token *token = c_parser_peek_token (parser); | |
29ce73cb PB |
624 | if (c_token_starts_typename (token)) |
625 | return true; | |
626 | ||
627 | /* Try a bit harder to detect an unknown typename. */ | |
628 | if (la != cla_prefer_id | |
629 | && token->type == CPP_NAME | |
630 | && token->id_kind == C_ID_ID | |
631 | ||
632 | /* Do not try too hard when we could have "object in array". */ | |
633 | && !parser->objc_could_be_foreach_context | |
634 | ||
635 | && (la == cla_prefer_type | |
636 | || c_parser_peek_2nd_token (parser)->type == CPP_NAME | |
637 | || c_parser_peek_2nd_token (parser)->type == CPP_MULT) | |
638 | ||
639 | /* Only unknown identifiers. */ | |
640 | && !lookup_name (token->value)) | |
641 | return true; | |
642 | ||
643 | return false; | |
27bf414c JM |
644 | } |
645 | ||
f725e721 PB |
646 | /* Return true if TOKEN is a type qualifier, false otherwise. */ |
647 | static bool | |
648 | c_token_is_qualifier (c_token *token) | |
649 | { | |
650 | switch (token->type) | |
651 | { | |
652 | case CPP_NAME: | |
653 | switch (token->id_kind) | |
654 | { | |
655 | case C_ID_ADDRSPACE: | |
656 | return true; | |
657 | default: | |
658 | return false; | |
659 | } | |
660 | case CPP_KEYWORD: | |
661 | switch (token->keyword) | |
662 | { | |
663 | case RID_CONST: | |
664 | case RID_VOLATILE: | |
665 | case RID_RESTRICT: | |
666 | case RID_ATTRIBUTE: | |
267bac10 | 667 | case RID_ATOMIC: |
f725e721 PB |
668 | return true; |
669 | default: | |
670 | return false; | |
671 | } | |
672 | case CPP_LESS: | |
673 | return false; | |
674 | default: | |
675 | gcc_unreachable (); | |
676 | } | |
677 | } | |
678 | ||
679 | /* Return true if the next token from PARSER is a type qualifier, | |
680 | false otherwise. */ | |
681 | static inline bool | |
682 | c_parser_next_token_is_qualifier (c_parser *parser) | |
683 | { | |
684 | c_token *token = c_parser_peek_token (parser); | |
685 | return c_token_is_qualifier (token); | |
686 | } | |
687 | ||
4e03c3a7 JM |
688 | /* Return true if TOKEN can start declaration specifiers (not |
689 | including standard attributes), false otherwise. */ | |
27bf414c JM |
690 | static bool |
691 | c_token_starts_declspecs (c_token *token) | |
692 | { | |
693 | switch (token->type) | |
694 | { | |
695 | case CPP_NAME: | |
696 | switch (token->id_kind) | |
697 | { | |
698 | case C_ID_ID: | |
699 | return false; | |
36c5e70a BE |
700 | case C_ID_ADDRSPACE: |
701 | return true; | |
27bf414c JM |
702 | case C_ID_TYPENAME: |
703 | return true; | |
704 | case C_ID_CLASSNAME: | |
705 | gcc_assert (c_dialect_objc ()); | |
706 | return true; | |
707 | default: | |
708 | gcc_unreachable (); | |
709 | } | |
710 | case CPP_KEYWORD: | |
711 | switch (token->keyword) | |
712 | { | |
713 | case RID_STATIC: | |
714 | case RID_EXTERN: | |
715 | case RID_REGISTER: | |
716 | case RID_TYPEDEF: | |
717 | case RID_INLINE: | |
bbceee64 | 718 | case RID_NORETURN: |
27bf414c JM |
719 | case RID_AUTO: |
720 | case RID_THREAD: | |
721 | case RID_UNSIGNED: | |
722 | case RID_LONG: | |
723 | case RID_SHORT: | |
724 | case RID_SIGNED: | |
725 | case RID_COMPLEX: | |
726 | case RID_INT: | |
727 | case RID_CHAR: | |
728 | case RID_FLOAT: | |
729 | case RID_DOUBLE: | |
730 | case RID_VOID: | |
9a8ce21f JG |
731 | case RID_DFLOAT32: |
732 | case RID_DFLOAT64: | |
733 | case RID_DFLOAT128: | |
c65699ef | 734 | CASE_RID_FLOATN_NX: |
27bf414c JM |
735 | case RID_BOOL: |
736 | case RID_ENUM: | |
737 | case RID_STRUCT: | |
738 | case RID_UNION: | |
739 | case RID_TYPEOF: | |
740 | case RID_CONST: | |
741 | case RID_VOLATILE: | |
742 | case RID_RESTRICT: | |
743 | case RID_ATTRIBUTE: | |
ab22c1fa CF |
744 | case RID_FRACT: |
745 | case RID_ACCUM: | |
746 | case RID_SAT: | |
d19fa6b5 | 747 | case RID_ALIGNAS: |
267bac10 | 748 | case RID_ATOMIC: |
38b7bc7f | 749 | case RID_AUTO_TYPE: |
27bf414c JM |
750 | return true; |
751 | default: | |
78a7c317 DD |
752 | if (token->keyword >= RID_FIRST_INT_N |
753 | && token->keyword < RID_FIRST_INT_N + NUM_INT_N_ENTS | |
754 | && int_n_enabled_p[token->keyword - RID_FIRST_INT_N]) | |
755 | return true; | |
27bf414c JM |
756 | return false; |
757 | } | |
758 | case CPP_LESS: | |
759 | if (c_dialect_objc ()) | |
760 | return true; | |
761 | return false; | |
762 | default: | |
763 | return false; | |
764 | } | |
765 | } | |
766 | ||
32912286 | 767 | |
4e03c3a7 JM |
768 | /* Return true if TOKEN can start declaration specifiers (not |
769 | including standard attributes) or a static assertion, false | |
770 | otherwise. */ | |
32912286 JM |
771 | static bool |
772 | c_token_starts_declaration (c_token *token) | |
773 | { | |
774 | if (c_token_starts_declspecs (token) | |
775 | || token->keyword == RID_STATIC_ASSERT) | |
776 | return true; | |
777 | else | |
778 | return false; | |
779 | } | |
780 | ||
27bf414c | 781 | /* Return true if the next token from PARSER can start declaration |
4e03c3a7 JM |
782 | specifiers (not including standard attributes), false |
783 | otherwise. */ | |
1ee62b92 | 784 | bool |
27bf414c JM |
785 | c_parser_next_token_starts_declspecs (c_parser *parser) |
786 | { | |
787 | c_token *token = c_parser_peek_token (parser); | |
bede2adc NP |
788 | |
789 | /* In Objective-C, a classname normally starts a declspecs unless it | |
790 | is immediately followed by a dot. In that case, it is the | |
791 | Objective-C 2.0 "dot-syntax" for class objects, ie, calls the | |
792 | setter/getter on the class. c_token_starts_declspecs() can't | |
793 | differentiate between the two cases because it only checks the | |
794 | current token, so we have a special check here. */ | |
795 | if (c_dialect_objc () | |
796 | && token->type == CPP_NAME | |
797 | && token->id_kind == C_ID_CLASSNAME | |
798 | && c_parser_peek_2nd_token (parser)->type == CPP_DOT) | |
799 | return false; | |
800 | ||
27bf414c JM |
801 | return c_token_starts_declspecs (token); |
802 | } | |
803 | ||
2f413185 | 804 | /* Return true if the next tokens from PARSER can start declaration |
4e03c3a7 JM |
805 | specifiers (not including standard attributes) or a static |
806 | assertion, false otherwise. */ | |
1ee62b92 | 807 | bool |
2f413185 | 808 | c_parser_next_tokens_start_declaration (c_parser *parser) |
32912286 JM |
809 | { |
810 | c_token *token = c_parser_peek_token (parser); | |
bede2adc NP |
811 | |
812 | /* Same as above. */ | |
813 | if (c_dialect_objc () | |
814 | && token->type == CPP_NAME | |
815 | && token->id_kind == C_ID_CLASSNAME | |
816 | && c_parser_peek_2nd_token (parser)->type == CPP_DOT) | |
817 | return false; | |
818 | ||
2f413185 PB |
819 | /* Labels do not start declarations. */ |
820 | if (token->type == CPP_NAME | |
821 | && c_parser_peek_2nd_token (parser)->type == CPP_COLON) | |
822 | return false; | |
823 | ||
824 | if (c_token_starts_declaration (token)) | |
825 | return true; | |
826 | ||
29ce73cb | 827 | if (c_parser_next_tokens_start_typename (parser, cla_nonabstract_decl)) |
2f413185 PB |
828 | return true; |
829 | ||
830 | return false; | |
32912286 JM |
831 | } |
832 | ||
27bf414c JM |
833 | /* Consume the next token from PARSER. */ |
834 | ||
1ee62b92 | 835 | void |
27bf414c JM |
836 | c_parser_consume_token (c_parser *parser) |
837 | { | |
bc4071dd RH |
838 | gcc_assert (parser->tokens_avail >= 1); |
839 | gcc_assert (parser->tokens[0].type != CPP_EOF); | |
840 | gcc_assert (!parser->in_pragma || parser->tokens[0].type != CPP_PRAGMA_EOL); | |
841 | gcc_assert (parser->error || parser->tokens[0].type != CPP_PRAGMA); | |
8139a48e | 842 | parser->last_token_location = parser->tokens[0].location; |
acf0174b JJ |
843 | if (parser->tokens != &parser->tokens_buf[0]) |
844 | parser->tokens++; | |
4e03c3a7 JM |
845 | else if (parser->tokens_avail >= 2) |
846 | { | |
847 | parser->tokens[0] = parser->tokens[1]; | |
848 | if (parser->tokens_avail >= 3) | |
852f0ae8 KK |
849 | { |
850 | parser->tokens[1] = parser->tokens[2]; | |
851 | if (parser->tokens_avail >= 4) | |
852 | parser->tokens[2] = parser->tokens[3]; | |
853 | } | |
4e03c3a7 | 854 | } |
27bf414c JM |
855 | parser->tokens_avail--; |
856 | } | |
857 | ||
bc4071dd RH |
858 | /* Expect the current token to be a #pragma. Consume it and remember |
859 | that we've begun parsing a pragma. */ | |
860 | ||
861 | static void | |
862 | c_parser_consume_pragma (c_parser *parser) | |
863 | { | |
864 | gcc_assert (!parser->in_pragma); | |
865 | gcc_assert (parser->tokens_avail >= 1); | |
866 | gcc_assert (parser->tokens[0].type == CPP_PRAGMA); | |
acf0174b JJ |
867 | if (parser->tokens != &parser->tokens_buf[0]) |
868 | parser->tokens++; | |
4e03c3a7 JM |
869 | else if (parser->tokens_avail >= 2) |
870 | { | |
871 | parser->tokens[0] = parser->tokens[1]; | |
872 | if (parser->tokens_avail >= 3) | |
873 | parser->tokens[1] = parser->tokens[2]; | |
874 | } | |
bc4071dd RH |
875 | parser->tokens_avail--; |
876 | parser->in_pragma = true; | |
877 | } | |
878 | ||
8400e75e | 879 | /* Update the global input_location from TOKEN. */ |
27bf414c JM |
880 | static inline void |
881 | c_parser_set_source_position_from_token (c_token *token) | |
882 | { | |
883 | if (token->type != CPP_EOF) | |
884 | { | |
885 | input_location = token->location; | |
27bf414c JM |
886 | } |
887 | } | |
888 | ||
de67c4c3 DM |
889 | /* Helper function for c_parser_error. |
890 | Having peeked a token of kind TOK1_KIND that might signify | |
891 | a conflict marker, peek successor tokens to determine | |
892 | if we actually do have a conflict marker. | |
893 | Specifically, we consider a run of 7 '<', '=' or '>' characters | |
894 | at the start of a line as a conflict marker. | |
895 | These come through the lexer as three pairs and a single, | |
896 | e.g. three CPP_LSHIFT ("<<") and a CPP_LESS ('<'). | |
897 | If it returns true, *OUT_LOC is written to with the location/range | |
898 | of the marker. */ | |
899 | ||
900 | static bool | |
901 | c_parser_peek_conflict_marker (c_parser *parser, enum cpp_ttype tok1_kind, | |
902 | location_t *out_loc) | |
903 | { | |
904 | c_token *token2 = c_parser_peek_2nd_token (parser); | |
905 | if (token2->type != tok1_kind) | |
906 | return false; | |
907 | c_token *token3 = c_parser_peek_nth_token (parser, 3); | |
908 | if (token3->type != tok1_kind) | |
909 | return false; | |
910 | c_token *token4 = c_parser_peek_nth_token (parser, 4); | |
911 | if (token4->type != conflict_marker_get_final_tok_kind (tok1_kind)) | |
912 | return false; | |
913 | ||
914 | /* It must be at the start of the line. */ | |
915 | location_t start_loc = c_parser_peek_token (parser)->location; | |
916 | if (LOCATION_COLUMN (start_loc) != 1) | |
917 | return false; | |
918 | ||
919 | /* We have a conflict marker. Construct a location of the form: | |
920 | <<<<<<< | |
921 | ^~~~~~~ | |
922 | with start == caret, finishing at the end of the marker. */ | |
923 | location_t finish_loc = get_finish (token4->location); | |
924 | *out_loc = make_location (start_loc, start_loc, finish_loc); | |
925 | ||
926 | return true; | |
927 | } | |
928 | ||
27bf414c JM |
929 | /* Issue a diagnostic of the form |
930 | FILE:LINE: MESSAGE before TOKEN | |
931 | where TOKEN is the next token in the input stream of PARSER. | |
932 | MESSAGE (specified by the caller) is usually of the form "expected | |
933 | OTHER-TOKEN". | |
934 | ||
32129a17 DM |
935 | Use RICHLOC as the location of the diagnostic. |
936 | ||
27bf414c JM |
937 | Do not issue a diagnostic if still recovering from an error. |
938 | ||
32129a17 DM |
939 | Return true iff an error was actually emitted. |
940 | ||
27bf414c JM |
941 | ??? This is taken from the C++ parser, but building up messages in |
942 | this way is not i18n-friendly and some other approach should be | |
943 | used. */ | |
944 | ||
32129a17 DM |
945 | static bool |
946 | c_parser_error_richloc (c_parser *parser, const char *gmsgid, | |
947 | rich_location *richloc) | |
27bf414c JM |
948 | { |
949 | c_token *token = c_parser_peek_token (parser); | |
950 | if (parser->error) | |
32129a17 | 951 | return false; |
27bf414c | 952 | parser->error = true; |
4b794eaf | 953 | if (!gmsgid) |
32129a17 | 954 | return false; |
de67c4c3 DM |
955 | |
956 | /* If this is actually a conflict marker, report it as such. */ | |
957 | if (token->type == CPP_LSHIFT | |
958 | || token->type == CPP_RSHIFT | |
959 | || token->type == CPP_EQ_EQ) | |
960 | { | |
961 | location_t loc; | |
962 | if (c_parser_peek_conflict_marker (parser, token->type, &loc)) | |
963 | { | |
964 | error_at (loc, "version control conflict marker in file"); | |
32129a17 | 965 | return true; |
de67c4c3 DM |
966 | } |
967 | } | |
968 | ||
4b794eaf | 969 | c_parse_error (gmsgid, |
27bf414c JM |
970 | /* Because c_parse_error does not understand |
971 | CPP_KEYWORD, keywords are treated like | |
972 | identifiers. */ | |
973 | (token->type == CPP_KEYWORD ? CPP_NAME : token->type), | |
cfc93532 MLI |
974 | /* ??? The C parser does not save the cpp flags of a |
975 | token, we need to pass 0 here and we will not get | |
976 | the source spelling of some tokens but rather the | |
977 | canonical spelling. */ | |
32129a17 DM |
978 | token->value, /*flags=*/0, richloc); |
979 | return true; | |
980 | } | |
981 | ||
982 | /* As c_parser_error_richloc, but issue the message at the | |
983 | location of PARSER's next token, or at input_location | |
984 | if the next token is EOF. */ | |
985 | ||
986 | bool | |
987 | c_parser_error (c_parser *parser, const char *gmsgid) | |
988 | { | |
989 | c_token *token = c_parser_peek_token (parser); | |
990 | c_parser_set_source_position_from_token (token); | |
991 | rich_location richloc (line_table, input_location); | |
992 | return c_parser_error_richloc (parser, gmsgid, &richloc); | |
993 | } | |
994 | ||
995 | /* Some tokens naturally come in pairs e.g.'(' and ')'. | |
996 | This class is for tracking such a matching pair of symbols. | |
997 | In particular, it tracks the location of the first token, | |
998 | so that if the second token is missing, we can highlight the | |
999 | location of the first token when notifying the user about the | |
1000 | problem. */ | |
1001 | ||
1002 | template <typename traits_t> | |
1003 | class token_pair | |
1004 | { | |
1005 | public: | |
1006 | /* token_pair's ctor. */ | |
1007 | token_pair () : m_open_loc (UNKNOWN_LOCATION) {} | |
1008 | ||
1009 | /* If the next token is the opening symbol for this pair, consume it and | |
1010 | return true. | |
1011 | Otherwise, issue an error and return false. | |
1012 | In either case, record the location of the opening token. */ | |
1013 | ||
1014 | bool require_open (c_parser *parser) | |
1015 | { | |
1016 | c_token *token = c_parser_peek_token (parser); | |
1017 | if (token) | |
1018 | m_open_loc = token->location; | |
1019 | ||
1020 | return c_parser_require (parser, traits_t::open_token_type, | |
1021 | traits_t::open_gmsgid); | |
1022 | } | |
1023 | ||
1024 | /* Consume the next token from PARSER, recording its location as | |
1025 | that of the opening token within the pair. */ | |
1026 | ||
1027 | void consume_open (c_parser *parser) | |
1028 | { | |
1029 | c_token *token = c_parser_peek_token (parser); | |
1030 | gcc_assert (token->type == traits_t::open_token_type); | |
1031 | m_open_loc = token->location; | |
1032 | c_parser_consume_token (parser); | |
1033 | } | |
1034 | ||
1035 | /* If the next token is the closing symbol for this pair, consume it | |
1036 | and return true. | |
1037 | Otherwise, issue an error, highlighting the location of the | |
1038 | corresponding opening token, and return false. */ | |
1039 | ||
1040 | bool require_close (c_parser *parser) const | |
1041 | { | |
1042 | return c_parser_require (parser, traits_t::close_token_type, | |
1043 | traits_t::close_gmsgid, m_open_loc); | |
1044 | } | |
1045 | ||
1046 | /* Like token_pair::require_close, except that tokens will be skipped | |
1047 | until the desired token is found. An error message is still produced | |
1048 | if the next token is not as expected. */ | |
1049 | ||
1050 | void skip_until_found_close (c_parser *parser) const | |
1051 | { | |
1052 | c_parser_skip_until_found (parser, traits_t::close_token_type, | |
1053 | traits_t::close_gmsgid, m_open_loc); | |
1054 | } | |
1055 | ||
1056 | private: | |
1057 | location_t m_open_loc; | |
1058 | }; | |
1059 | ||
1060 | /* Traits for token_pair<T> for tracking matching pairs of parentheses. */ | |
1061 | ||
1062 | struct matching_paren_traits | |
1063 | { | |
1064 | static const enum cpp_ttype open_token_type = CPP_OPEN_PAREN; | |
1065 | static const char * const open_gmsgid; | |
1066 | static const enum cpp_ttype close_token_type = CPP_CLOSE_PAREN; | |
1067 | static const char * const close_gmsgid; | |
1068 | }; | |
1069 | ||
1070 | const char * const matching_paren_traits::open_gmsgid = "expected %<(%>"; | |
1071 | const char * const matching_paren_traits::close_gmsgid = "expected %<)%>"; | |
1072 | ||
1073 | /* "matching_parens" is a token_pair<T> class for tracking matching | |
1074 | pairs of parentheses. */ | |
1075 | ||
1076 | typedef token_pair<matching_paren_traits> matching_parens; | |
1077 | ||
1078 | /* Traits for token_pair<T> for tracking matching pairs of braces. */ | |
1079 | ||
1080 | struct matching_brace_traits | |
1081 | { | |
1082 | static const enum cpp_ttype open_token_type = CPP_OPEN_BRACE; | |
1083 | static const char * const open_gmsgid; | |
1084 | static const enum cpp_ttype close_token_type = CPP_CLOSE_BRACE; | |
1085 | static const char * const close_gmsgid; | |
1086 | }; | |
1087 | ||
1088 | const char * const matching_brace_traits::open_gmsgid = "expected %<{%>"; | |
1089 | const char * const matching_brace_traits::close_gmsgid = "expected %<}%>"; | |
1090 | ||
1091 | /* "matching_braces" is a token_pair<T> class for tracking matching | |
1092 | pairs of braces. */ | |
1093 | ||
1094 | typedef token_pair<matching_brace_traits> matching_braces; | |
1095 | ||
1096 | /* Get a description of the matching symbol to TYPE e.g. "(" for | |
1097 | CPP_CLOSE_PAREN. */ | |
1098 | ||
1099 | static const char * | |
1100 | get_matching_symbol (enum cpp_ttype type) | |
1101 | { | |
1102 | switch (type) | |
1103 | { | |
1104 | default: | |
1105 | gcc_unreachable (); | |
1106 | return ""; | |
1107 | case CPP_CLOSE_PAREN: | |
1108 | return "("; | |
1109 | case CPP_CLOSE_BRACE: | |
1110 | return "{"; | |
1111 | } | |
27bf414c JM |
1112 | } |
1113 | ||
1114 | /* If the next token is of the indicated TYPE, consume it. Otherwise, | |
1115 | issue the error MSGID. If MSGID is NULL then a message has already | |
1116 | been produced and no message will be produced this time. Returns | |
32129a17 DM |
1117 | true if found, false otherwise. |
1118 | ||
1119 | If MATCHING_LOCATION is not UNKNOWN_LOCATION, then highlight it | |
1120 | within any error as the location of an "opening" token matching | |
1121 | the close token TYPE (e.g. the location of the '(' when TYPE is | |
62e1c678 DM |
1122 | CPP_CLOSE_PAREN). |
1123 | ||
1124 | If TYPE_IS_UNIQUE is true (the default) then msgid describes exactly | |
1125 | one type (e.g. "expected %<)%>") and thus it may be reasonable to | |
1126 | attempt to generate a fix-it hint for the problem. | |
1127 | Otherwise msgid describes multiple token types (e.g. | |
1128 | "expected %<;%>, %<,%> or %<)%>"), and thus we shouldn't attempt to | |
1129 | generate a fix-it hint. */ | |
27bf414c | 1130 | |
1ee62b92 | 1131 | bool |
27bf414c JM |
1132 | c_parser_require (c_parser *parser, |
1133 | enum cpp_ttype type, | |
32129a17 | 1134 | const char *msgid, |
62e1c678 DM |
1135 | location_t matching_location, |
1136 | bool type_is_unique) | |
27bf414c JM |
1137 | { |
1138 | if (c_parser_next_token_is (parser, type)) | |
1139 | { | |
1140 | c_parser_consume_token (parser); | |
1141 | return true; | |
1142 | } | |
1143 | else | |
1144 | { | |
32129a17 DM |
1145 | location_t next_token_loc = c_parser_peek_token (parser)->location; |
1146 | gcc_rich_location richloc (next_token_loc); | |
1147 | ||
62e1c678 DM |
1148 | /* Potentially supply a fix-it hint, suggesting to add the |
1149 | missing token immediately after the *previous* token. | |
1150 | This may move the primary location within richloc. */ | |
1151 | if (!parser->error && type_is_unique) | |
1152 | maybe_suggest_missing_token_insertion (&richloc, type, | |
1153 | parser->last_token_location); | |
1154 | ||
32129a17 DM |
1155 | /* If matching_location != UNKNOWN_LOCATION, highlight it. |
1156 | Attempt to consolidate diagnostics by printing it as a | |
1157 | secondary range within the main diagnostic. */ | |
1158 | bool added_matching_location = false; | |
1159 | if (matching_location != UNKNOWN_LOCATION) | |
1160 | added_matching_location | |
1161 | = richloc.add_location_if_nearby (matching_location); | |
1162 | ||
1163 | if (c_parser_error_richloc (parser, msgid, &richloc)) | |
1164 | /* If we weren't able to consolidate matching_location, then | |
1165 | print it as a secondary diagnostic. */ | |
1166 | if (matching_location != UNKNOWN_LOCATION && !added_matching_location) | |
1167 | inform (matching_location, "to match this %qs", | |
1168 | get_matching_symbol (type)); | |
1169 | ||
27bf414c JM |
1170 | return false; |
1171 | } | |
1172 | } | |
1173 | ||
1174 | /* If the next token is the indicated keyword, consume it. Otherwise, | |
1175 | issue the error MSGID. Returns true if found, false otherwise. */ | |
1176 | ||
1177 | static bool | |
1178 | c_parser_require_keyword (c_parser *parser, | |
1179 | enum rid keyword, | |
1180 | const char *msgid) | |
1181 | { | |
1182 | if (c_parser_next_token_is_keyword (parser, keyword)) | |
1183 | { | |
1184 | c_parser_consume_token (parser); | |
1185 | return true; | |
1186 | } | |
1187 | else | |
1188 | { | |
1189 | c_parser_error (parser, msgid); | |
1190 | return false; | |
1191 | } | |
1192 | } | |
1193 | ||
1194 | /* Like c_parser_require, except that tokens will be skipped until the | |
1195 | desired token is found. An error message is still produced if the | |
1196 | next token is not as expected. If MSGID is NULL then a message has | |
1197 | already been produced and no message will be produced this | |
32129a17 DM |
1198 | time. |
1199 | ||
1200 | If MATCHING_LOCATION is not UNKNOWN_LOCATION, then highlight it | |
1201 | within any error as the location of an "opening" token matching | |
1202 | the close token TYPE (e.g. the location of the '(' when TYPE is | |
1203 | CPP_CLOSE_PAREN). */ | |
27bf414c | 1204 | |
1ee62b92 | 1205 | void |
27bf414c JM |
1206 | c_parser_skip_until_found (c_parser *parser, |
1207 | enum cpp_ttype type, | |
32129a17 DM |
1208 | const char *msgid, |
1209 | location_t matching_location) | |
27bf414c JM |
1210 | { |
1211 | unsigned nesting_depth = 0; | |
1212 | ||
32129a17 | 1213 | if (c_parser_require (parser, type, msgid, matching_location)) |
27bf414c JM |
1214 | return; |
1215 | ||
1216 | /* Skip tokens until the desired token is found. */ | |
1217 | while (true) | |
1218 | { | |
1219 | /* Peek at the next token. */ | |
1220 | c_token *token = c_parser_peek_token (parser); | |
1221 | /* If we've reached the token we want, consume it and stop. */ | |
1222 | if (token->type == type && !nesting_depth) | |
1223 | { | |
1224 | c_parser_consume_token (parser); | |
1225 | break; | |
1226 | } | |
bc4071dd | 1227 | |
27bf414c JM |
1228 | /* If we've run out of tokens, stop. */ |
1229 | if (token->type == CPP_EOF) | |
1230 | return; | |
bc4071dd RH |
1231 | if (token->type == CPP_PRAGMA_EOL && parser->in_pragma) |
1232 | return; | |
27bf414c JM |
1233 | if (token->type == CPP_OPEN_BRACE |
1234 | || token->type == CPP_OPEN_PAREN | |
1235 | || token->type == CPP_OPEN_SQUARE) | |
1236 | ++nesting_depth; | |
1237 | else if (token->type == CPP_CLOSE_BRACE | |
1238 | || token->type == CPP_CLOSE_PAREN | |
1239 | || token->type == CPP_CLOSE_SQUARE) | |
1240 | { | |
1241 | if (nesting_depth-- == 0) | |
1242 | break; | |
1243 | } | |
1244 | /* Consume this token. */ | |
1245 | c_parser_consume_token (parser); | |
1246 | } | |
1247 | parser->error = false; | |
1248 | } | |
1249 | ||
1250 | /* Skip tokens until the end of a parameter is found, but do not | |
1251 | consume the comma, semicolon or closing delimiter. */ | |
1252 | ||
1253 | static void | |
1254 | c_parser_skip_to_end_of_parameter (c_parser *parser) | |
1255 | { | |
1256 | unsigned nesting_depth = 0; | |
1257 | ||
1258 | while (true) | |
1259 | { | |
1260 | c_token *token = c_parser_peek_token (parser); | |
1261 | if ((token->type == CPP_COMMA || token->type == CPP_SEMICOLON) | |
1262 | && !nesting_depth) | |
1263 | break; | |
1264 | /* If we've run out of tokens, stop. */ | |
1265 | if (token->type == CPP_EOF) | |
1266 | return; | |
bc4071dd RH |
1267 | if (token->type == CPP_PRAGMA_EOL && parser->in_pragma) |
1268 | return; | |
27bf414c JM |
1269 | if (token->type == CPP_OPEN_BRACE |
1270 | || token->type == CPP_OPEN_PAREN | |
1271 | || token->type == CPP_OPEN_SQUARE) | |
1272 | ++nesting_depth; | |
1273 | else if (token->type == CPP_CLOSE_BRACE | |
1274 | || token->type == CPP_CLOSE_PAREN | |
1275 | || token->type == CPP_CLOSE_SQUARE) | |
1276 | { | |
1277 | if (nesting_depth-- == 0) | |
1278 | break; | |
1279 | } | |
1280 | /* Consume this token. */ | |
1281 | c_parser_consume_token (parser); | |
1282 | } | |
1283 | parser->error = false; | |
1284 | } | |
1285 | ||
bc4071dd RH |
1286 | /* Expect to be at the end of the pragma directive and consume an |
1287 | end of line marker. */ | |
1288 | ||
1289 | static void | |
62021f64 | 1290 | c_parser_skip_to_pragma_eol (c_parser *parser, bool error_if_not_eol = true) |
bc4071dd RH |
1291 | { |
1292 | gcc_assert (parser->in_pragma); | |
1293 | parser->in_pragma = false; | |
1294 | ||
62021f64 TB |
1295 | if (error_if_not_eol && c_parser_peek_token (parser)->type != CPP_PRAGMA_EOL) |
1296 | c_parser_error (parser, "expected end of line"); | |
1297 | ||
1298 | cpp_ttype token_type; | |
1299 | do | |
1300 | { | |
1301 | c_token *token = c_parser_peek_token (parser); | |
1302 | token_type = token->type; | |
1303 | if (token_type == CPP_EOF) | |
1304 | break; | |
1305 | c_parser_consume_token (parser); | |
1306 | } | |
1307 | while (token_type != CPP_PRAGMA_EOL); | |
bc4071dd RH |
1308 | |
1309 | parser->error = false; | |
1310 | } | |
27bf414c | 1311 | |
2a83cc52 RH |
1312 | /* Skip tokens until we have consumed an entire block, or until we |
1313 | have consumed a non-nested ';'. */ | |
1314 | ||
1315 | static void | |
1316 | c_parser_skip_to_end_of_block_or_statement (c_parser *parser) | |
1317 | { | |
1318 | unsigned nesting_depth = 0; | |
1319 | bool save_error = parser->error; | |
1320 | ||
1321 | while (true) | |
1322 | { | |
1323 | c_token *token; | |
1324 | ||
1325 | /* Peek at the next token. */ | |
1326 | token = c_parser_peek_token (parser); | |
1327 | ||
1328 | switch (token->type) | |
1329 | { | |
1330 | case CPP_EOF: | |
1331 | return; | |
1332 | ||
1333 | case CPP_PRAGMA_EOL: | |
1334 | if (parser->in_pragma) | |
1335 | return; | |
1336 | break; | |
1337 | ||
1338 | case CPP_SEMICOLON: | |
1339 | /* If the next token is a ';', we have reached the | |
1340 | end of the statement. */ | |
1341 | if (!nesting_depth) | |
1342 | { | |
1343 | /* Consume the ';'. */ | |
1344 | c_parser_consume_token (parser); | |
1345 | goto finished; | |
1346 | } | |
1347 | break; | |
1348 | ||
1349 | case CPP_CLOSE_BRACE: | |
1350 | /* If the next token is a non-nested '}', then we have | |
1351 | reached the end of the current block. */ | |
1352 | if (nesting_depth == 0 || --nesting_depth == 0) | |
1353 | { | |
1354 | c_parser_consume_token (parser); | |
1355 | goto finished; | |
1356 | } | |
1357 | break; | |
1358 | ||
1359 | case CPP_OPEN_BRACE: | |
1360 | /* If it the next token is a '{', then we are entering a new | |
1361 | block. Consume the entire block. */ | |
1362 | ++nesting_depth; | |
1363 | break; | |
1364 | ||
1365 | case CPP_PRAGMA: | |
1366 | /* If we see a pragma, consume the whole thing at once. We | |
1367 | have some safeguards against consuming pragmas willy-nilly. | |
1368 | Normally, we'd expect to be here with parser->error set, | |
1369 | which disables these safeguards. But it's possible to get | |
1370 | here for secondary error recovery, after parser->error has | |
1371 | been cleared. */ | |
1372 | c_parser_consume_pragma (parser); | |
1373 | c_parser_skip_to_pragma_eol (parser); | |
1374 | parser->error = save_error; | |
1375 | continue; | |
9e33de05 RS |
1376 | |
1377 | default: | |
1378 | break; | |
2a83cc52 RH |
1379 | } |
1380 | ||
1381 | c_parser_consume_token (parser); | |
1382 | } | |
1383 | ||
1384 | finished: | |
1385 | parser->error = false; | |
1386 | } | |
1387 | ||
d2e796ad MLI |
1388 | /* CPP's options (initialized by c-opts.c). */ |
1389 | extern cpp_options *cpp_opts; | |
1390 | ||
27bf414c JM |
1391 | /* Save the warning flags which are controlled by __extension__. */ |
1392 | ||
1393 | static inline int | |
1394 | disable_extension_diagnostics (void) | |
1395 | { | |
1396 | int ret = (pedantic | |
1397 | | (warn_pointer_arith << 1) | |
1398 | | (warn_traditional << 2) | |
d2e796ad | 1399 | | (flag_iso << 3) |
24b97832 | 1400 | | (warn_long_long << 4) |
b3ab9ea2 | 1401 | | (warn_cxx_compat << 5) |
f3bede71 | 1402 | | (warn_overlength_strings << 6) |
177cce46 MP |
1403 | /* warn_c90_c99_compat has three states: -1/0/1, so we must |
1404 | play tricks to properly restore it. */ | |
1405 | | ((warn_c90_c99_compat == 1) << 7) | |
35aff4fb MP |
1406 | | ((warn_c90_c99_compat == -1) << 8) |
1407 | /* Similarly for warn_c99_c11_compat. */ | |
1408 | | ((warn_c99_c11_compat == 1) << 9) | |
1409 | | ((warn_c99_c11_compat == -1) << 10) | |
9f936c86 JM |
1410 | /* Similarly for warn_c11_c2x_compat. */ |
1411 | | ((warn_c11_c2x_compat == 1) << 11) | |
1412 | | ((warn_c11_c2x_compat == -1) << 12) | |
35aff4fb | 1413 | ); |
e3339d0f | 1414 | cpp_opts->cpp_pedantic = pedantic = 0; |
27bf414c | 1415 | warn_pointer_arith = 0; |
e3339d0f | 1416 | cpp_opts->cpp_warn_traditional = warn_traditional = 0; |
27bf414c | 1417 | flag_iso = 0; |
e3339d0f | 1418 | cpp_opts->cpp_warn_long_long = warn_long_long = 0; |
24b97832 | 1419 | warn_cxx_compat = 0; |
b3ab9ea2 | 1420 | warn_overlength_strings = 0; |
f3bede71 | 1421 | warn_c90_c99_compat = 0; |
35aff4fb | 1422 | warn_c99_c11_compat = 0; |
9f936c86 | 1423 | warn_c11_c2x_compat = 0; |
27bf414c JM |
1424 | return ret; |
1425 | } | |
1426 | ||
1427 | /* Restore the warning flags which are controlled by __extension__. | |
1428 | FLAGS is the return value from disable_extension_diagnostics. */ | |
1429 | ||
1430 | static inline void | |
1431 | restore_extension_diagnostics (int flags) | |
1432 | { | |
e3339d0f | 1433 | cpp_opts->cpp_pedantic = pedantic = flags & 1; |
27bf414c | 1434 | warn_pointer_arith = (flags >> 1) & 1; |
e3339d0f | 1435 | cpp_opts->cpp_warn_traditional = warn_traditional = (flags >> 2) & 1; |
27bf414c | 1436 | flag_iso = (flags >> 3) & 1; |
e3339d0f | 1437 | cpp_opts->cpp_warn_long_long = warn_long_long = (flags >> 4) & 1; |
24b97832 | 1438 | warn_cxx_compat = (flags >> 5) & 1; |
b3ab9ea2 | 1439 | warn_overlength_strings = (flags >> 6) & 1; |
177cce46 MP |
1440 | /* See above for why is this needed. */ |
1441 | warn_c90_c99_compat = (flags >> 7) & 1 ? 1 : ((flags >> 8) & 1 ? -1 : 0); | |
35aff4fb | 1442 | warn_c99_c11_compat = (flags >> 9) & 1 ? 1 : ((flags >> 10) & 1 ? -1 : 0); |
9f936c86 | 1443 | warn_c11_c2x_compat = (flags >> 11) & 1 ? 1 : ((flags >> 12) & 1 ? -1 : 0); |
27bf414c JM |
1444 | } |
1445 | ||
0b212d8c TS |
1446 | /* Helper data structure for parsing #pragma acc routine. */ |
1447 | struct oacc_routine_data { | |
ae9281fc TS |
1448 | bool error_seen; /* Set if error has been reported. */ |
1449 | bool fndecl_seen; /* Set if one fn decl/definition has been seen already. */ | |
0b212d8c TS |
1450 | tree clauses; |
1451 | location_t loc; | |
1452 | }; | |
1453 | ||
4e03c3a7 JM |
1454 | static bool c_parser_nth_token_starts_std_attributes (c_parser *, |
1455 | unsigned int); | |
1456 | static tree c_parser_std_attribute_specifier_sequence (c_parser *); | |
27bf414c JM |
1457 | static void c_parser_external_declaration (c_parser *); |
1458 | static void c_parser_asm_definition (c_parser *); | |
32912286 | 1459 | static void c_parser_declaration_or_fndef (c_parser *, bool, bool, bool, |
3a40d81d | 1460 | bool, bool, tree *, vec<c_token>, |
4e03c3a7 JM |
1461 | bool have_attrs = false, |
1462 | tree attrs = NULL, | |
81fea426 MP |
1463 | struct oacc_routine_data * = NULL, |
1464 | bool * = NULL); | |
32912286 JM |
1465 | static void c_parser_static_assert_declaration_no_semi (c_parser *); |
1466 | static void c_parser_static_assert_declaration (c_parser *); | |
27bf414c JM |
1467 | static struct c_typespec c_parser_enum_specifier (c_parser *); |
1468 | static struct c_typespec c_parser_struct_or_union_specifier (c_parser *); | |
1469 | static tree c_parser_struct_declaration (c_parser *); | |
1470 | static struct c_typespec c_parser_typeof_specifier (c_parser *); | |
d19fa6b5 | 1471 | static tree c_parser_alignas_specifier (c_parser *); |
27bf414c JM |
1472 | static struct c_declarator *c_parser_direct_declarator (c_parser *, bool, |
1473 | c_dtr_syn, bool *); | |
1474 | static struct c_declarator *c_parser_direct_declarator_inner (c_parser *, | |
1475 | bool, | |
1476 | struct c_declarator *); | |
4e03c3a7 JM |
1477 | static struct c_arg_info *c_parser_parms_declarator (c_parser *, bool, tree, |
1478 | bool); | |
a04a722b | 1479 | static struct c_arg_info *c_parser_parms_list_declarator (c_parser *, tree, |
4e03c3a7 JM |
1480 | tree, bool); |
1481 | static struct c_parm *c_parser_parameter_declaration (c_parser *, tree, bool); | |
27bf414c | 1482 | static tree c_parser_simple_asm_expr (c_parser *); |
783bfe5e | 1483 | static tree c_parser_gnu_attributes (c_parser *); |
27bf414c | 1484 | static struct c_expr c_parser_initializer (c_parser *); |
16595a1f BS |
1485 | static struct c_expr c_parser_braced_init (c_parser *, tree, bool, |
1486 | struct obstack *); | |
a1e3b3d9 LB |
1487 | static void c_parser_initelt (c_parser *, struct obstack *); |
1488 | static void c_parser_initval (c_parser *, struct c_expr *, | |
1489 | struct obstack *); | |
9def91e9 JJ |
1490 | static tree c_parser_compound_statement (c_parser *, location_t * = NULL); |
1491 | static location_t c_parser_compound_statement_nostart (c_parser *); | |
27bf414c | 1492 | static void c_parser_label (c_parser *); |
3e2becc4 | 1493 | static void c_parser_statement (c_parser *, bool *, location_t * = NULL); |
99cd9857 MP |
1494 | static void c_parser_statement_after_labels (c_parser *, bool *, |
1495 | vec<tree> * = NULL); | |
3e2becc4 MP |
1496 | static tree c_parser_c99_block_statement (c_parser *, bool *, |
1497 | location_t * = NULL); | |
99cd9857 | 1498 | static void c_parser_if_statement (c_parser *, bool *, vec<tree> *); |
351f85c5 | 1499 | static void c_parser_switch_statement (c_parser *, bool *); |
170a8bd6 EB |
1500 | static void c_parser_while_statement (c_parser *, bool, unsigned short, bool *); |
1501 | static void c_parser_do_statement (c_parser *, bool, unsigned short); | |
1502 | static void c_parser_for_statement (c_parser *, bool, unsigned short, bool *); | |
27bf414c | 1503 | static tree c_parser_asm_statement (c_parser *); |
eadd3d0d | 1504 | static tree c_parser_asm_operands (c_parser *); |
1c384bf1 | 1505 | static tree c_parser_asm_goto_operands (c_parser *); |
27bf414c | 1506 | static tree c_parser_asm_clobbers (c_parser *); |
acf0174b JJ |
1507 | static struct c_expr c_parser_expr_no_commas (c_parser *, struct c_expr *, |
1508 | tree = NULL_TREE); | |
27bf414c | 1509 | static struct c_expr c_parser_conditional_expression (c_parser *, |
acf0174b | 1510 | struct c_expr *, tree); |
20906c66 | 1511 | static struct c_expr c_parser_binary_expression (c_parser *, struct c_expr *, |
acf0174b | 1512 | tree); |
27bf414c JM |
1513 | static struct c_expr c_parser_cast_expression (c_parser *, struct c_expr *); |
1514 | static struct c_expr c_parser_unary_expression (c_parser *); | |
1515 | static struct c_expr c_parser_sizeof_expression (c_parser *); | |
1516 | static struct c_expr c_parser_alignof_expression (c_parser *); | |
1517 | static struct c_expr c_parser_postfix_expression (c_parser *); | |
1518 | static struct c_expr c_parser_postfix_expression_after_paren_type (c_parser *, | |
24b97832 ILT |
1519 | struct c_type_name *, |
1520 | location_t); | |
27bf414c | 1521 | static struct c_expr c_parser_postfix_expression_after_primary (c_parser *, |
c2255bc4 | 1522 | location_t loc, |
27bf414c | 1523 | struct c_expr); |
0a35513e AH |
1524 | static tree c_parser_transaction (c_parser *, enum rid); |
1525 | static struct c_expr c_parser_transaction_expression (c_parser *, enum rid); | |
1526 | static tree c_parser_transaction_cancel (c_parser *); | |
27bf414c | 1527 | static struct c_expr c_parser_expression (c_parser *); |
46bdb9cf | 1528 | static struct c_expr c_parser_expression_conv (c_parser *); |
9771b263 DN |
1529 | static vec<tree, va_gc> *c_parser_expr_list (c_parser *, bool, bool, |
1530 | vec<tree, va_gc> **, location_t *, | |
b108f48f JJ |
1531 | tree *, vec<location_t> *, |
1532 | unsigned int * = NULL); | |
98f08eb8 MS |
1533 | static struct c_expr c_parser_has_attribute_expression (c_parser *); |
1534 | ||
6e232ba4 | 1535 | static void c_parser_oacc_declare (c_parser *); |
41dbbb37 TS |
1536 | static void c_parser_oacc_enter_exit_data (c_parser *, bool); |
1537 | static void c_parser_oacc_update (c_parser *); | |
dda1bf61 | 1538 | static void c_parser_omp_construct (c_parser *, bool *); |
953ff289 DN |
1539 | static void c_parser_omp_threadprivate (c_parser *); |
1540 | static void c_parser_omp_barrier (c_parser *); | |
28567c40 | 1541 | static void c_parser_omp_depobj (c_parser *); |
953ff289 | 1542 | static void c_parser_omp_flush (c_parser *); |
41dbbb37 | 1543 | static tree c_parser_omp_for_loop (location_t, c_parser *, enum tree_code, |
dda1bf61 | 1544 | tree, tree *, bool *); |
a68ab351 | 1545 | static void c_parser_omp_taskwait (c_parser *); |
20906c66 | 1546 | static void c_parser_omp_taskyield (c_parser *); |
acf0174b | 1547 | static void c_parser_omp_cancel (c_parser *); |
27bf414c | 1548 | |
acf0174b JJ |
1549 | enum pragma_context { pragma_external, pragma_struct, pragma_param, |
1550 | pragma_stmt, pragma_compound }; | |
dda1bf61 | 1551 | static bool c_parser_pragma (c_parser *, enum pragma_context, bool *); |
54d19c3b | 1552 | static void c_parser_omp_cancellation_point (c_parser *, enum pragma_context); |
dda1bf61 | 1553 | static bool c_parser_omp_target (c_parser *, enum pragma_context, bool *); |
acf0174b JJ |
1554 | static void c_parser_omp_end_declare_target (c_parser *); |
1555 | static void c_parser_omp_declare (c_parser *, enum pragma_context); | |
28567c40 | 1556 | static void c_parser_omp_requires (c_parser *); |
dda1bf61 | 1557 | static bool c_parser_omp_ordered (c_parser *, enum pragma_context, bool *); |
0b212d8c | 1558 | static void c_parser_oacc_routine (c_parser *, enum pragma_context); |
bc4071dd | 1559 | |
27bf414c JM |
1560 | /* These Objective-C parser functions are only ever called when |
1561 | compiling Objective-C. */ | |
c165dca7 | 1562 | static void c_parser_objc_class_definition (c_parser *, tree); |
27bf414c JM |
1563 | static void c_parser_objc_class_instance_variables (c_parser *); |
1564 | static void c_parser_objc_class_declaration (c_parser *); | |
1565 | static void c_parser_objc_alias_declaration (c_parser *); | |
c165dca7 | 1566 | static void c_parser_objc_protocol_definition (c_parser *, tree); |
249a82c4 | 1567 | static bool c_parser_objc_method_type (c_parser *); |
27bf414c JM |
1568 | static void c_parser_objc_method_definition (c_parser *); |
1569 | static void c_parser_objc_methodprotolist (c_parser *); | |
1570 | static void c_parser_objc_methodproto (c_parser *); | |
a04a722b | 1571 | static tree c_parser_objc_method_decl (c_parser *, bool, tree *, tree *); |
27bf414c JM |
1572 | static tree c_parser_objc_type_name (c_parser *); |
1573 | static tree c_parser_objc_protocol_refs (c_parser *); | |
437c2322 | 1574 | static void c_parser_objc_try_catch_finally_statement (c_parser *); |
27bf414c JM |
1575 | static void c_parser_objc_synchronized_statement (c_parser *); |
1576 | static tree c_parser_objc_selector (c_parser *); | |
1577 | static tree c_parser_objc_selector_arg (c_parser *); | |
1578 | static tree c_parser_objc_receiver (c_parser *); | |
1579 | static tree c_parser_objc_message_args (c_parser *); | |
1580 | static tree c_parser_objc_keywordexpr (c_parser *); | |
f614132b | 1581 | static void c_parser_objc_at_property_declaration (c_parser *); |
da57d1b9 NP |
1582 | static void c_parser_objc_at_synthesize_declaration (c_parser *); |
1583 | static void c_parser_objc_at_dynamic_declaration (c_parser *); | |
668ea4b1 | 1584 | static bool c_parser_objc_diagnose_bad_element_prefix |
c165dca7 | 1585 | (c_parser *, struct c_declspecs *); |
9def91e9 | 1586 | static location_t c_parser_parse_rtl_body (c_parser *, char *); |
c2e84327 | 1587 | |
31dc71a8 | 1588 | /* Parse a translation unit (C90 6.7, C99 6.9, C11 6.9). |
27bf414c JM |
1589 | |
1590 | translation-unit: | |
1591 | external-declarations | |
1592 | ||
1593 | external-declarations: | |
1594 | external-declaration | |
1595 | external-declarations external-declaration | |
1596 | ||
1597 | GNU extensions: | |
1598 | ||
1599 | translation-unit: | |
1600 | empty | |
1601 | */ | |
1602 | ||
1603 | static void | |
1604 | c_parser_translation_unit (c_parser *parser) | |
1605 | { | |
1606 | if (c_parser_next_token_is (parser, CPP_EOF)) | |
1607 | { | |
c1771a20 | 1608 | pedwarn (c_parser_peek_token (parser)->location, OPT_Wpedantic, |
509c9d60 | 1609 | "ISO C forbids an empty translation unit"); |
27bf414c JM |
1610 | } |
1611 | else | |
1612 | { | |
1613 | void *obstack_position = obstack_alloc (&parser_obstack, 0); | |
6ec637a4 | 1614 | mark_valid_location_for_stdc_pragma (false); |
27bf414c JM |
1615 | do |
1616 | { | |
1617 | ggc_collect (); | |
1618 | c_parser_external_declaration (parser); | |
1619 | obstack_free (&parser_obstack, obstack_position); | |
1620 | } | |
1621 | while (c_parser_next_token_is_not (parser, CPP_EOF)); | |
1622 | } | |
d25c7690 | 1623 | |
13f92e8d JJ |
1624 | unsigned int i; |
1625 | tree decl; | |
1626 | FOR_EACH_VEC_ELT (incomplete_record_decls, i, decl) | |
1627 | if (DECL_SIZE (decl) == NULL_TREE && TREE_TYPE (decl) != error_mark_node) | |
686e2237 | 1628 | error ("storage size of %q+D isn%'t known", decl); |
7cec9588 JJ |
1629 | |
1630 | if (current_omp_declare_target_attribute) | |
1631 | { | |
1632 | if (!errorcount) | |
1633 | error ("%<#pragma omp declare target%> without corresponding " | |
1634 | "%<#pragma omp end declare target%>"); | |
1635 | current_omp_declare_target_attribute = 0; | |
1636 | } | |
27bf414c JM |
1637 | } |
1638 | ||
31dc71a8 | 1639 | /* Parse an external declaration (C90 6.7, C99 6.9, C11 6.9). |
27bf414c JM |
1640 | |
1641 | external-declaration: | |
1642 | function-definition | |
1643 | declaration | |
1644 | ||
1645 | GNU extensions: | |
1646 | ||
1647 | external-declaration: | |
1648 | asm-definition | |
1649 | ; | |
1650 | __extension__ external-declaration | |
1651 | ||
1652 | Objective-C: | |
1653 | ||
1654 | external-declaration: | |
1655 | objc-class-definition | |
1656 | objc-class-declaration | |
1657 | objc-alias-declaration | |
1658 | objc-protocol-definition | |
1659 | objc-method-definition | |
1660 | @end | |
1661 | */ | |
1662 | ||
1663 | static void | |
1664 | c_parser_external_declaration (c_parser *parser) | |
1665 | { | |
1666 | int ext; | |
1667 | switch (c_parser_peek_token (parser)->type) | |
1668 | { | |
1669 | case CPP_KEYWORD: | |
1670 | switch (c_parser_peek_token (parser)->keyword) | |
1671 | { | |
1672 | case RID_EXTENSION: | |
1673 | ext = disable_extension_diagnostics (); | |
1674 | c_parser_consume_token (parser); | |
1675 | c_parser_external_declaration (parser); | |
1676 | restore_extension_diagnostics (ext); | |
1677 | break; | |
1678 | case RID_ASM: | |
1679 | c_parser_asm_definition (parser); | |
1680 | break; | |
1681 | case RID_AT_INTERFACE: | |
1682 | case RID_AT_IMPLEMENTATION: | |
1683 | gcc_assert (c_dialect_objc ()); | |
c165dca7 | 1684 | c_parser_objc_class_definition (parser, NULL_TREE); |
27bf414c | 1685 | break; |
49b91f05 | 1686 | case RID_AT_CLASS: |
27bf414c JM |
1687 | gcc_assert (c_dialect_objc ()); |
1688 | c_parser_objc_class_declaration (parser); | |
1689 | break; | |
1690 | case RID_AT_ALIAS: | |
1691 | gcc_assert (c_dialect_objc ()); | |
1692 | c_parser_objc_alias_declaration (parser); | |
1693 | break; | |
1694 | case RID_AT_PROTOCOL: | |
1695 | gcc_assert (c_dialect_objc ()); | |
c165dca7 | 1696 | c_parser_objc_protocol_definition (parser, NULL_TREE); |
27bf414c | 1697 | break; |
668ea4b1 IS |
1698 | case RID_AT_PROPERTY: |
1699 | gcc_assert (c_dialect_objc ()); | |
f614132b | 1700 | c_parser_objc_at_property_declaration (parser); |
668ea4b1 | 1701 | break; |
da57d1b9 NP |
1702 | case RID_AT_SYNTHESIZE: |
1703 | gcc_assert (c_dialect_objc ()); | |
1704 | c_parser_objc_at_synthesize_declaration (parser); | |
1705 | break; | |
1706 | case RID_AT_DYNAMIC: | |
1707 | gcc_assert (c_dialect_objc ()); | |
1708 | c_parser_objc_at_dynamic_declaration (parser); | |
1709 | break; | |
27bf414c JM |
1710 | case RID_AT_END: |
1711 | gcc_assert (c_dialect_objc ()); | |
1712 | c_parser_consume_token (parser); | |
1713 | objc_finish_implementation (); | |
1714 | break; | |
1715 | default: | |
1716 | goto decl_or_fndef; | |
1717 | } | |
1718 | break; | |
1719 | case CPP_SEMICOLON: | |
c1771a20 | 1720 | pedwarn (c_parser_peek_token (parser)->location, OPT_Wpedantic, |
509c9d60 | 1721 | "ISO C does not allow extra %<;%> outside of a function"); |
27bf414c JM |
1722 | c_parser_consume_token (parser); |
1723 | break; | |
bc4071dd | 1724 | case CPP_PRAGMA: |
6ec637a4 | 1725 | mark_valid_location_for_stdc_pragma (true); |
dda1bf61 | 1726 | c_parser_pragma (parser, pragma_external, NULL); |
6ec637a4 | 1727 | mark_valid_location_for_stdc_pragma (false); |
bc4071dd | 1728 | break; |
27bf414c JM |
1729 | case CPP_PLUS: |
1730 | case CPP_MINUS: | |
1731 | if (c_dialect_objc ()) | |
1732 | { | |
1733 | c_parser_objc_method_definition (parser); | |
1734 | break; | |
1735 | } | |
1736 | /* Else fall through, and yield a syntax error trying to parse | |
1737 | as a declaration or function definition. */ | |
191816a3 | 1738 | /* FALLTHRU */ |
27bf414c JM |
1739 | default: |
1740 | decl_or_fndef: | |
c165dca7 IS |
1741 | /* A declaration or a function definition (or, in Objective-C, |
1742 | an @interface or @protocol with prefix attributes). We can | |
1743 | only tell which after parsing the declaration specifiers, if | |
1744 | any, and the first declarator. */ | |
acf0174b JJ |
1745 | c_parser_declaration_or_fndef (parser, true, true, true, false, true, |
1746 | NULL, vNULL); | |
27bf414c JM |
1747 | break; |
1748 | } | |
1749 | } | |
1750 | ||
acf0174b | 1751 | static void c_finish_omp_declare_simd (c_parser *, tree, tree, vec<c_token>); |
ae9281fc | 1752 | static void c_finish_oacc_routine (struct oacc_routine_data *, tree, bool); |
acf0174b | 1753 | |
96a95ac1 AO |
1754 | /* Build and add a DEBUG_BEGIN_STMT statement with location LOC. */ |
1755 | ||
1756 | static void | |
1757 | add_debug_begin_stmt (location_t loc) | |
1758 | { | |
849bbdb9 JJ |
1759 | /* Don't add DEBUG_BEGIN_STMTs outside of functions, see PR84721. */ |
1760 | if (!MAY_HAVE_DEBUG_MARKER_STMTS || !building_stmt_list_p ()) | |
96a95ac1 AO |
1761 | return; |
1762 | ||
1763 | tree stmt = build0 (DEBUG_BEGIN_STMT, void_type_node); | |
1764 | SET_EXPR_LOCATION (stmt, loc); | |
1765 | add_stmt (stmt); | |
1766 | } | |
1767 | ||
27bf414c | 1768 | /* Parse a declaration or function definition (C90 6.5, 6.7.1, C99 |
31dc71a8 MP |
1769 | 6.7, 6.9.1, C11 6.7, 6.9.1). If FNDEF_OK is true, a function definition |
1770 | is accepted; otherwise (old-style parameter declarations) only other | |
32912286 JM |
1771 | declarations are accepted. If STATIC_ASSERT_OK is true, a static |
1772 | assertion is accepted; otherwise (old-style parameter declarations) | |
1773 | it is not. If NESTED is true, we are inside a function or parsing | |
1774 | old-style parameter declarations; any functions encountered are | |
1775 | nested functions and declaration specifiers are required; otherwise | |
1776 | we are at top level and functions are normal functions and | |
1777 | declaration specifiers may be optional. If EMPTY_OK is true, empty | |
1778 | declarations are OK (subject to all other constraints); otherwise | |
1779 | (old-style parameter declarations) they are diagnosed. If | |
1780 | START_ATTR_OK is true, the declaration specifiers may start with | |
4e03c3a7 | 1781 | attributes (GNU or standard); otherwise they may not. |
f05b9d93 NP |
1782 | OBJC_FOREACH_OBJECT_DECLARATION can be used to get back the parsed |
1783 | declaration when parsing an Objective-C foreach statement. | |
81fea426 | 1784 | FALLTHRU_ATTR_P is used to signal whether this function parsed |
4e03c3a7 JM |
1785 | "__attribute__((fallthrough));". ATTRS are any standard attributes |
1786 | parsed in the caller (in contexts where such attributes had to be | |
1787 | parsed to determine whether what follows is a declaration or a | |
1788 | statement); HAVE_ATTRS says whether there were any such attributes | |
1789 | (even empty). | |
27bf414c JM |
1790 | |
1791 | declaration: | |
1792 | declaration-specifiers init-declarator-list[opt] ; | |
32912286 | 1793 | static_assert-declaration |
27bf414c JM |
1794 | |
1795 | function-definition: | |
1796 | declaration-specifiers[opt] declarator declaration-list[opt] | |
1797 | compound-statement | |
1798 | ||
1799 | declaration-list: | |
1800 | declaration | |
1801 | declaration-list declaration | |
1802 | ||
1803 | init-declarator-list: | |
1804 | init-declarator | |
1805 | init-declarator-list , init-declarator | |
1806 | ||
1807 | init-declarator: | |
783bfe5e JM |
1808 | declarator simple-asm-expr[opt] gnu-attributes[opt] |
1809 | declarator simple-asm-expr[opt] gnu-attributes[opt] = initializer | |
27bf414c JM |
1810 | |
1811 | GNU extensions: | |
1812 | ||
1813 | nested-function-definition: | |
1814 | declaration-specifiers declarator declaration-list[opt] | |
1815 | compound-statement | |
1816 | ||
81fea426 MP |
1817 | attribute ; |
1818 | ||
c165dca7 | 1819 | Objective-C: |
783bfe5e JM |
1820 | gnu-attributes objc-class-definition |
1821 | gnu-attributes objc-category-definition | |
1822 | gnu-attributes objc-protocol-definition | |
c165dca7 | 1823 | |
783bfe5e | 1824 | The simple-asm-expr and gnu-attributes are GNU extensions. |
27bf414c JM |
1825 | |
1826 | This function does not handle __extension__; that is handled in its | |
1827 | callers. ??? Following the old parser, __extension__ may start | |
1828 | external declarations, declarations in functions and declarations | |
1829 | at the start of "for" loops, but not old-style parameter | |
1830 | declarations. | |
1831 | ||
1832 | C99 requires declaration specifiers in a function definition; the | |
1833 | absence is diagnosed through the diagnosis of implicit int. In GNU | |
1834 | C we also allow but diagnose declarations without declaration | |
1835 | specifiers, but only at top level (elsewhere they conflict with | |
953ff289 | 1836 | other syntax). |
b8698a0f | 1837 | |
f05b9d93 NP |
1838 | In Objective-C, declarations of the looping variable in a foreach |
1839 | statement are exceptionally terminated by 'in' (for example, 'for | |
1840 | (NSObject *object in array) { ... }'). | |
1841 | ||
953ff289 | 1842 | OpenMP: |
b8698a0f | 1843 | |
953ff289 | 1844 | declaration: |
1ee62b92 PG |
1845 | threadprivate-directive |
1846 | ||
1847 | GIMPLE: | |
1848 | ||
1849 | gimple-function-definition: | |
c2e84327 DM |
1850 | declaration-specifiers[opt] __GIMPLE (gimple-or-rtl-pass-list) declarator |
1851 | declaration-list[opt] compound-statement | |
1852 | ||
1853 | rtl-function-definition: | |
1854 | declaration-specifiers[opt] __RTL (gimple-or-rtl-pass-list) declarator | |
1ee62b92 | 1855 | declaration-list[opt] compound-statement */ |
27bf414c JM |
1856 | |
1857 | static void | |
32912286 JM |
1858 | c_parser_declaration_or_fndef (c_parser *parser, bool fndef_ok, |
1859 | bool static_assert_ok, bool empty_ok, | |
f05b9d93 | 1860 | bool nested, bool start_attr_ok, |
acf0174b | 1861 | tree *objc_foreach_object_declaration, |
3a40d81d | 1862 | vec<c_token> omp_declare_simd_clauses, |
4e03c3a7 | 1863 | bool have_attrs, tree attrs, |
81fea426 MP |
1864 | struct oacc_routine_data *oacc_routine_data, |
1865 | bool *fallthru_attr_p) | |
27bf414c JM |
1866 | { |
1867 | struct c_declspecs *specs; | |
1868 | tree prefix_attrs; | |
1869 | tree all_prefix_attrs; | |
1870 | bool diagnosed_no_specs = false; | |
c7412148 | 1871 | location_t here = c_parser_peek_token (parser)->location; |
bc4071dd | 1872 | |
96a95ac1 AO |
1873 | add_debug_begin_stmt (c_parser_peek_token (parser)->location); |
1874 | ||
32912286 JM |
1875 | if (static_assert_ok |
1876 | && c_parser_next_token_is_keyword (parser, RID_STATIC_ASSERT)) | |
1877 | { | |
1878 | c_parser_static_assert_declaration (parser); | |
1879 | return; | |
1880 | } | |
27bf414c | 1881 | specs = build_null_declspecs (); |
2f413185 | 1882 | |
4e03c3a7 JM |
1883 | /* Handle any standard attributes parsed in the caller. */ |
1884 | if (have_attrs) | |
1885 | { | |
1886 | declspecs_add_attrs (here, specs, attrs); | |
1887 | specs->non_std_attrs_seen_p = false; | |
1888 | } | |
1889 | ||
2f413185 PB |
1890 | /* Try to detect an unknown type name when we have "A B" or "A *B". */ |
1891 | if (c_parser_peek_token (parser)->type == CPP_NAME | |
1892 | && c_parser_peek_token (parser)->id_kind == C_ID_ID | |
1893 | && (c_parser_peek_2nd_token (parser)->type == CPP_NAME | |
1894 | || c_parser_peek_2nd_token (parser)->type == CPP_MULT) | |
1895 | && (!nested || !lookup_name (c_parser_peek_token (parser)->value))) | |
1896 | { | |
0e36f5c7 | 1897 | tree name = c_parser_peek_token (parser)->value; |
1a4f11c8 DM |
1898 | |
1899 | /* Issue a warning about NAME being an unknown type name, perhaps | |
1900 | with some kind of hint. | |
1901 | If the user forgot a "struct" etc, suggest inserting | |
1902 | it. Otherwise, attempt to look for misspellings. */ | |
1903 | gcc_rich_location richloc (here); | |
0e36f5c7 | 1904 | if (tag_exists_p (RECORD_TYPE, name)) |
1a4f11c8 DM |
1905 | { |
1906 | /* This is not C++ with its implicit typedef. */ | |
254830ba | 1907 | richloc.add_fixit_insert_before ("struct "); |
64a5912c DM |
1908 | error_at (&richloc, |
1909 | "unknown type name %qE;" | |
1910 | " use %<struct%> keyword to refer to the type", | |
1911 | name); | |
1a4f11c8 | 1912 | } |
0e36f5c7 | 1913 | else if (tag_exists_p (UNION_TYPE, name)) |
1a4f11c8 | 1914 | { |
254830ba | 1915 | richloc.add_fixit_insert_before ("union "); |
64a5912c DM |
1916 | error_at (&richloc, |
1917 | "unknown type name %qE;" | |
1918 | " use %<union%> keyword to refer to the type", | |
1919 | name); | |
1a4f11c8 | 1920 | } |
0e36f5c7 | 1921 | else if (tag_exists_p (ENUMERAL_TYPE, name)) |
1a4f11c8 | 1922 | { |
254830ba | 1923 | richloc.add_fixit_insert_before ("enum "); |
64a5912c DM |
1924 | error_at (&richloc, |
1925 | "unknown type name %qE;" | |
1926 | " use %<enum%> keyword to refer to the type", | |
1927 | name); | |
1a4f11c8 DM |
1928 | } |
1929 | else | |
1930 | { | |
097f82ec | 1931 | auto_diagnostic_group d; |
6c7a259b DM |
1932 | name_hint hint = lookup_name_fuzzy (name, FUZZY_LOOKUP_TYPENAME, |
1933 | here); | |
7e2de6df | 1934 | if (const char *suggestion = hint.suggestion ()) |
1a4f11c8 | 1935 | { |
7e2de6df | 1936 | richloc.add_fixit_replace (suggestion); |
64a5912c DM |
1937 | error_at (&richloc, |
1938 | "unknown type name %qE; did you mean %qs?", | |
7e2de6df | 1939 | name, suggestion); |
1a4f11c8 DM |
1940 | } |
1941 | else | |
1942 | error_at (here, "unknown type name %qE", name); | |
1943 | } | |
2f413185 PB |
1944 | |
1945 | /* Parse declspecs normally to get a correct pointer type, but avoid | |
a5812bdc PB |
1946 | a further "fails to be a type name" error. Refuse nested functions |
1947 | since it is not how the user likely wants us to recover. */ | |
2f413185 PB |
1948 | c_parser_peek_token (parser)->type = CPP_KEYWORD; |
1949 | c_parser_peek_token (parser)->keyword = RID_VOID; | |
1950 | c_parser_peek_token (parser)->value = error_mark_node; | |
a5812bdc | 1951 | fndef_ok = !nested; |
2f413185 PB |
1952 | } |
1953 | ||
4e03c3a7 JM |
1954 | /* When there are standard attributes at the start of the |
1955 | declaration (to apply to the entity being declared), an | |
1956 | init-declarator-list or function definition must be present. */ | |
1957 | if (c_parser_nth_token_starts_std_attributes (parser, 1)) | |
1958 | have_attrs = true; | |
1959 | ||
568a31f2 | 1960 | c_parser_declspecs (parser, specs, true, true, start_attr_ok, |
4e03c3a7 | 1961 | true, true, start_attr_ok, true, cla_nonabstract_decl); |
27bf414c JM |
1962 | if (parser->error) |
1963 | { | |
1964 | c_parser_skip_to_end_of_block_or_statement (parser); | |
1965 | return; | |
1966 | } | |
1967 | if (nested && !specs->declspecs_seen_p) | |
1968 | { | |
1969 | c_parser_error (parser, "expected declaration specifiers"); | |
1970 | c_parser_skip_to_end_of_block_or_statement (parser); | |
1971 | return; | |
1972 | } | |
1ee62b92 | 1973 | |
27bf414c | 1974 | finish_declspecs (specs); |
38b7bc7f | 1975 | bool auto_type_p = specs->typespec_word == cts_auto_type; |
27bf414c JM |
1976 | if (c_parser_next_token_is (parser, CPP_SEMICOLON)) |
1977 | { | |
38b7bc7f JM |
1978 | if (auto_type_p) |
1979 | error_at (here, "%<__auto_type%> in empty declaration"); | |
81fea426 MP |
1980 | else if (specs->typespec_kind == ctsk_none |
1981 | && attribute_fallthrough_p (specs->attrs)) | |
1982 | { | |
1983 | if (fallthru_attr_p != NULL) | |
1984 | *fallthru_attr_p = true; | |
f8aea5e3 JM |
1985 | if (nested) |
1986 | { | |
1987 | tree fn = build_call_expr_internal_loc (here, IFN_FALLTHROUGH, | |
1988 | void_type_node, 0); | |
1989 | add_stmt (fn); | |
1990 | } | |
1991 | else | |
1992 | pedwarn (here, OPT_Wattributes, | |
1993 | "%<fallthrough%> attribute at top level"); | |
81fea426 | 1994 | } |
4e03c3a7 JM |
1995 | else if (empty_ok && !(have_attrs |
1996 | && specs->non_std_attrs_seen_p)) | |
27bf414c JM |
1997 | shadow_tag (specs); |
1998 | else | |
1999 | { | |
2000 | shadow_tag_warned (specs, 1); | |
509c9d60 | 2001 | pedwarn (here, 0, "empty declaration"); |
27bf414c JM |
2002 | } |
2003 | c_parser_consume_token (parser); | |
0b212d8c | 2004 | if (oacc_routine_data) |
ae9281fc | 2005 | c_finish_oacc_routine (oacc_routine_data, NULL_TREE, false); |
27bf414c JM |
2006 | return; |
2007 | } | |
f725e721 PB |
2008 | |
2009 | /* Provide better error recovery. Note that a type name here is usually | |
2010 | better diagnosed as a redeclaration. */ | |
2011 | if (empty_ok | |
2012 | && specs->typespec_kind == ctsk_tagdef | |
2013 | && c_parser_next_token_starts_declspecs (parser) | |
2014 | && !c_parser_next_token_is (parser, CPP_NAME)) | |
2015 | { | |
2016 | c_parser_error (parser, "expected %<;%>, identifier or %<(%>"); | |
2017 | parser->error = false; | |
2018 | shadow_tag_warned (specs, 1); | |
2019 | return; | |
2020 | } | |
38b7bc7f | 2021 | else if (c_dialect_objc () && !auto_type_p) |
c165dca7 | 2022 | { |
f7e71da5 IS |
2023 | /* Prefix attributes are an error on method decls. */ |
2024 | switch (c_parser_peek_token (parser)->type) | |
2025 | { | |
2026 | case CPP_PLUS: | |
2027 | case CPP_MINUS: | |
2028 | if (c_parser_objc_diagnose_bad_element_prefix (parser, specs)) | |
2029 | return; | |
2030 | if (specs->attrs) | |
2031 | { | |
2032 | warning_at (c_parser_peek_token (parser)->location, | |
2033 | OPT_Wattributes, | |
2034 | "prefix attributes are ignored for methods"); | |
2035 | specs->attrs = NULL_TREE; | |
2036 | } | |
2037 | if (fndef_ok) | |
2038 | c_parser_objc_method_definition (parser); | |
2039 | else | |
2040 | c_parser_objc_methodproto (parser); | |
2041 | return; | |
2042 | break; | |
2043 | default: | |
2044 | break; | |
2045 | } | |
c165dca7 IS |
2046 | /* This is where we parse 'attributes @interface ...', |
2047 | 'attributes @implementation ...', 'attributes @protocol ...' | |
2048 | (where attributes could be, for example, __attribute__ | |
2049 | ((deprecated)). | |
2050 | */ | |
2051 | switch (c_parser_peek_token (parser)->keyword) | |
2052 | { | |
2053 | case RID_AT_INTERFACE: | |
2054 | { | |
2055 | if (c_parser_objc_diagnose_bad_element_prefix (parser, specs)) | |
2056 | return; | |
2057 | c_parser_objc_class_definition (parser, specs->attrs); | |
2058 | return; | |
2059 | } | |
2060 | break; | |
2061 | case RID_AT_IMPLEMENTATION: | |
2062 | { | |
2063 | if (c_parser_objc_diagnose_bad_element_prefix (parser, specs)) | |
2064 | return; | |
2065 | if (specs->attrs) | |
2066 | { | |
2067 | warning_at (c_parser_peek_token (parser)->location, | |
2068 | OPT_Wattributes, | |
2069 | "prefix attributes are ignored for implementations"); | |
2070 | specs->attrs = NULL_TREE; | |
2071 | } | |
2072 | c_parser_objc_class_definition (parser, NULL_TREE); | |
2073 | return; | |
2074 | } | |
2075 | break; | |
2076 | case RID_AT_PROTOCOL: | |
2077 | { | |
2078 | if (c_parser_objc_diagnose_bad_element_prefix (parser, specs)) | |
2079 | return; | |
2080 | c_parser_objc_protocol_definition (parser, specs->attrs); | |
2081 | return; | |
2082 | } | |
2083 | break; | |
668ea4b1 IS |
2084 | case RID_AT_ALIAS: |
2085 | case RID_AT_CLASS: | |
2086 | case RID_AT_END: | |
2087 | case RID_AT_PROPERTY: | |
2088 | if (specs->attrs) | |
2089 | { | |
96bbfbac | 2090 | c_parser_error (parser, "unexpected attribute"); |
668ea4b1 IS |
2091 | specs->attrs = NULL; |
2092 | } | |
2093 | break; | |
c165dca7 IS |
2094 | default: |
2095 | break; | |
2096 | } | |
2097 | } | |
81fea426 MP |
2098 | else if (attribute_fallthrough_p (specs->attrs)) |
2099 | warning_at (here, OPT_Wattributes, | |
2100 | "%<fallthrough%> attribute not followed by %<;%>"); | |
2101 | ||
27bf414c JM |
2102 | pending_xref_error (); |
2103 | prefix_attrs = specs->attrs; | |
2104 | all_prefix_attrs = prefix_attrs; | |
2105 | specs->attrs = NULL_TREE; | |
ae9281fc | 2106 | while (true) |
27bf414c JM |
2107 | { |
2108 | struct c_declarator *declarator; | |
2109 | bool dummy = false; | |
575bfb00 | 2110 | timevar_id_t tv; |
1ee62b92 | 2111 | tree fnbody = NULL_TREE; |
27bf414c JM |
2112 | /* Declaring either one or more declarators (in which case we |
2113 | should diagnose if there were no declaration specifiers) or a | |
2114 | function definition (in which case the diagnostic for | |
2115 | implicit int suffices). */ | |
9e5b2115 PB |
2116 | declarator = c_parser_declarator (parser, |
2117 | specs->typespec_kind != ctsk_none, | |
27bf414c JM |
2118 | C_DTR_NORMAL, &dummy); |
2119 | if (declarator == NULL) | |
2120 | { | |
5e9d6aa4 | 2121 | if (omp_declare_simd_clauses.exists ()) |
acf0174b JJ |
2122 | c_finish_omp_declare_simd (parser, NULL_TREE, NULL_TREE, |
2123 | omp_declare_simd_clauses); | |
0b212d8c | 2124 | if (oacc_routine_data) |
ae9281fc | 2125 | c_finish_oacc_routine (oacc_routine_data, NULL_TREE, false); |
27bf414c JM |
2126 | c_parser_skip_to_end_of_block_or_statement (parser); |
2127 | return; | |
2128 | } | |
38b7bc7f JM |
2129 | if (auto_type_p && declarator->kind != cdk_id) |
2130 | { | |
2131 | error_at (here, | |
2132 | "%<__auto_type%> requires a plain identifier" | |
2133 | " as declarator"); | |
2134 | c_parser_skip_to_end_of_block_or_statement (parser); | |
2135 | return; | |
2136 | } | |
27bf414c JM |
2137 | if (c_parser_next_token_is (parser, CPP_EQ) |
2138 | || c_parser_next_token_is (parser, CPP_COMMA) | |
2139 | || c_parser_next_token_is (parser, CPP_SEMICOLON) | |
2140 | || c_parser_next_token_is_keyword (parser, RID_ASM) | |
f05b9d93 NP |
2141 | || c_parser_next_token_is_keyword (parser, RID_ATTRIBUTE) |
2142 | || c_parser_next_token_is_keyword (parser, RID_IN)) | |
27bf414c JM |
2143 | { |
2144 | tree asm_name = NULL_TREE; | |
2145 | tree postfix_attrs = NULL_TREE; | |
2146 | if (!diagnosed_no_specs && !specs->declspecs_seen_p) | |
2147 | { | |
2148 | diagnosed_no_specs = true; | |
509c9d60 | 2149 | pedwarn (here, 0, "data definition has no type or storage class"); |
27bf414c JM |
2150 | } |
2151 | /* Having seen a data definition, there cannot now be a | |
2152 | function definition. */ | |
2153 | fndef_ok = false; | |
2154 | if (c_parser_next_token_is_keyword (parser, RID_ASM)) | |
2155 | asm_name = c_parser_simple_asm_expr (parser); | |
2156 | if (c_parser_next_token_is_keyword (parser, RID_ATTRIBUTE)) | |
ae5ebda4 | 2157 | { |
783bfe5e | 2158 | postfix_attrs = c_parser_gnu_attributes (parser); |
ae5ebda4 MP |
2159 | if (c_parser_next_token_is (parser, CPP_OPEN_BRACE)) |
2160 | { | |
2161 | /* This means there is an attribute specifier after | |
2162 | the declarator in a function definition. Provide | |
2163 | some more information for the user. */ | |
2164 | error_at (here, "attributes should be specified before the " | |
2165 | "declarator in a function definition"); | |
2166 | c_parser_skip_to_end_of_block_or_statement (parser); | |
2167 | return; | |
2168 | } | |
2169 | } | |
27bf414c JM |
2170 | if (c_parser_next_token_is (parser, CPP_EQ)) |
2171 | { | |
2172 | tree d; | |
2173 | struct c_expr init; | |
c2255bc4 | 2174 | location_t init_loc; |
27bf414c | 2175 | c_parser_consume_token (parser); |
38b7bc7f JM |
2176 | if (auto_type_p) |
2177 | { | |
38b7bc7f | 2178 | init_loc = c_parser_peek_token (parser)->location; |
5dd9a9d0 DM |
2179 | rich_location richloc (line_table, init_loc); |
2180 | start_init (NULL_TREE, asm_name, global_bindings_p (), &richloc); | |
36618428 MP |
2181 | /* A parameter is initialized, which is invalid. Don't |
2182 | attempt to instrument the initializer. */ | |
2183 | int flag_sanitize_save = flag_sanitize; | |
2184 | if (nested && !empty_ok) | |
2185 | flag_sanitize = 0; | |
38b7bc7f | 2186 | init = c_parser_expr_no_commas (parser, NULL); |
36618428 | 2187 | flag_sanitize = flag_sanitize_save; |
38b7bc7f JM |
2188 | if (TREE_CODE (init.value) == COMPONENT_REF |
2189 | && DECL_C_BIT_FIELD (TREE_OPERAND (init.value, 1))) | |
2190 | error_at (here, | |
2191 | "%<__auto_type%> used with a bit-field" | |
2192 | " initializer"); | |
2193 | init = convert_lvalue_to_rvalue (init_loc, init, true, true); | |
2194 | tree init_type = TREE_TYPE (init.value); | |
9698b078 | 2195 | /* As with typeof, remove all qualifiers from atomic types. */ |
38b7bc7f JM |
2196 | if (init_type != error_mark_node && TYPE_ATOMIC (init_type)) |
2197 | init_type | |
9698b078 | 2198 | = c_build_qualified_type (init_type, TYPE_UNQUALIFIED); |
38b7bc7f JM |
2199 | bool vm_type = variably_modified_type_p (init_type, |
2200 | NULL_TREE); | |
2201 | if (vm_type) | |
b2fa0a8b | 2202 | init.value = save_expr (init.value); |
38b7bc7f JM |
2203 | finish_init (); |
2204 | specs->typespec_kind = ctsk_typeof; | |
2205 | specs->locations[cdw_typedef] = init_loc; | |
2206 | specs->typedef_p = true; | |
2207 | specs->type = init_type; | |
2208 | if (vm_type) | |
2209 | { | |
2210 | bool maybe_const = true; | |
2211 | tree type_expr = c_fully_fold (init.value, false, | |
2212 | &maybe_const); | |
2213 | specs->expr_const_operands &= maybe_const; | |
2214 | if (specs->expr) | |
2215 | specs->expr = build2 (COMPOUND_EXPR, | |
2216 | TREE_TYPE (type_expr), | |
2217 | specs->expr, type_expr); | |
2218 | else | |
2219 | specs->expr = type_expr; | |
2220 | } | |
2221 | d = start_decl (declarator, specs, true, | |
2222 | chainon (postfix_attrs, all_prefix_attrs)); | |
2223 | if (!d) | |
2224 | d = error_mark_node; | |
5e9d6aa4 | 2225 | if (omp_declare_simd_clauses.exists ()) |
38b7bc7f JM |
2226 | c_finish_omp_declare_simd (parser, d, NULL_TREE, |
2227 | omp_declare_simd_clauses); | |
2228 | } | |
2229 | else | |
2230 | { | |
2231 | /* The declaration of the variable is in effect while | |
2232 | its initializer is parsed. */ | |
2233 | d = start_decl (declarator, specs, true, | |
2234 | chainon (postfix_attrs, all_prefix_attrs)); | |
2235 | if (!d) | |
2236 | d = error_mark_node; | |
5e9d6aa4 | 2237 | if (omp_declare_simd_clauses.exists ()) |
38b7bc7f JM |
2238 | c_finish_omp_declare_simd (parser, d, NULL_TREE, |
2239 | omp_declare_simd_clauses); | |
38b7bc7f | 2240 | init_loc = c_parser_peek_token (parser)->location; |
5dd9a9d0 DM |
2241 | rich_location richloc (line_table, init_loc); |
2242 | start_init (d, asm_name, global_bindings_p (), &richloc); | |
36618428 MP |
2243 | /* A parameter is initialized, which is invalid. Don't |
2244 | attempt to instrument the initializer. */ | |
2245 | int flag_sanitize_save = flag_sanitize; | |
2246 | if (TREE_CODE (d) == PARM_DECL) | |
2247 | flag_sanitize = 0; | |
38b7bc7f | 2248 | init = c_parser_initializer (parser); |
36618428 | 2249 | flag_sanitize = flag_sanitize_save; |
38b7bc7f JM |
2250 | finish_init (); |
2251 | } | |
0b212d8c | 2252 | if (oacc_routine_data) |
ae9281fc | 2253 | c_finish_oacc_routine (oacc_routine_data, d, false); |
27bf414c JM |
2254 | if (d != error_mark_node) |
2255 | { | |
d033409e | 2256 | maybe_warn_string_init (init_loc, TREE_TYPE (d), init); |
c2255bc4 | 2257 | finish_decl (d, init_loc, init.value, |
d033409e | 2258 | init.original_type, asm_name); |
27bf414c JM |
2259 | } |
2260 | } | |
2261 | else | |
2262 | { | |
38b7bc7f JM |
2263 | if (auto_type_p) |
2264 | { | |
2265 | error_at (here, | |
2266 | "%<__auto_type%> requires an initialized " | |
2267 | "data declaration"); | |
2268 | c_parser_skip_to_end_of_block_or_statement (parser); | |
2269 | return; | |
2270 | } | |
27bf414c JM |
2271 | tree d = start_decl (declarator, specs, false, |
2272 | chainon (postfix_attrs, | |
2273 | all_prefix_attrs)); | |
cfc30fd1 JJ |
2274 | if (d |
2275 | && TREE_CODE (d) == FUNCTION_DECL | |
cfc30fd1 JJ |
2276 | && DECL_ARGUMENTS (d) == NULL_TREE |
2277 | && DECL_INITIAL (d) == NULL_TREE) | |
db376f45 EB |
2278 | { |
2279 | /* Find the innermost declarator that is neither cdk_id | |
2280 | nor cdk_attrs. */ | |
2281 | const struct c_declarator *decl = declarator; | |
2282 | const struct c_declarator *last_non_id_attrs = NULL; | |
2283 | ||
2284 | while (decl) | |
2285 | switch (decl->kind) | |
2286 | { | |
2287 | case cdk_array: | |
2288 | case cdk_function: | |
2289 | case cdk_pointer: | |
2290 | last_non_id_attrs = decl; | |
2291 | decl = decl->declarator; | |
2292 | break; | |
2293 | ||
2294 | case cdk_attrs: | |
2295 | decl = decl->declarator; | |
2296 | break; | |
2297 | ||
2298 | case cdk_id: | |
2299 | decl = 0; | |
2300 | break; | |
2301 | ||
2302 | default: | |
2303 | gcc_unreachable (); | |
2304 | } | |
2305 | ||
2306 | /* If it exists and is cdk_function, use its parameters. */ | |
2307 | if (last_non_id_attrs | |
2308 | && last_non_id_attrs->kind == cdk_function) | |
2309 | DECL_ARGUMENTS (d) = last_non_id_attrs->u.arg_info->parms; | |
2310 | } | |
5e9d6aa4 | 2311 | if (omp_declare_simd_clauses.exists ()) |
acf0174b JJ |
2312 | { |
2313 | tree parms = NULL_TREE; | |
2314 | if (d && TREE_CODE (d) == FUNCTION_DECL) | |
2315 | { | |
2316 | struct c_declarator *ce = declarator; | |
2317 | while (ce != NULL) | |
2318 | if (ce->kind == cdk_function) | |
2319 | { | |
2320 | parms = ce->u.arg_info->parms; | |
2321 | break; | |
2322 | } | |
2323 | else | |
2324 | ce = ce->declarator; | |
2325 | } | |
2326 | if (parms) | |
2327 | temp_store_parm_decls (d, parms); | |
2328 | c_finish_omp_declare_simd (parser, d, parms, | |
2329 | omp_declare_simd_clauses); | |
2330 | if (parms) | |
2331 | temp_pop_parm_decls (); | |
2332 | } | |
0b212d8c | 2333 | if (oacc_routine_data) |
ae9281fc | 2334 | c_finish_oacc_routine (oacc_routine_data, d, false); |
27bf414c | 2335 | if (d) |
c2255bc4 | 2336 | finish_decl (d, UNKNOWN_LOCATION, NULL_TREE, |
f05b9d93 NP |
2337 | NULL_TREE, asm_name); |
2338 | ||
2339 | if (c_parser_next_token_is_keyword (parser, RID_IN)) | |
2340 | { | |
2341 | if (d) | |
2342 | *objc_foreach_object_declaration = d; | |
2343 | else | |
2344 | *objc_foreach_object_declaration = error_mark_node; | |
2345 | } | |
27bf414c JM |
2346 | } |
2347 | if (c_parser_next_token_is (parser, CPP_COMMA)) | |
2348 | { | |
38b7bc7f JM |
2349 | if (auto_type_p) |
2350 | { | |
2351 | error_at (here, | |
2352 | "%<__auto_type%> may only be used with" | |
2353 | " a single declarator"); | |
2354 | c_parser_skip_to_end_of_block_or_statement (parser); | |
2355 | return; | |
2356 | } | |
27bf414c JM |
2357 | c_parser_consume_token (parser); |
2358 | if (c_parser_next_token_is_keyword (parser, RID_ATTRIBUTE)) | |
783bfe5e | 2359 | all_prefix_attrs = chainon (c_parser_gnu_attributes (parser), |
27bf414c JM |
2360 | prefix_attrs); |
2361 | else | |
2362 | all_prefix_attrs = prefix_attrs; | |
2363 | continue; | |
2364 | } | |
2365 | else if (c_parser_next_token_is (parser, CPP_SEMICOLON)) | |
2366 | { | |
2367 | c_parser_consume_token (parser); | |
2368 | return; | |
2369 | } | |
f05b9d93 NP |
2370 | else if (c_parser_next_token_is_keyword (parser, RID_IN)) |
2371 | { | |
2372 | /* This can only happen in Objective-C: we found the | |
2373 | 'in' that terminates the declaration inside an | |
2374 | Objective-C foreach statement. Do not consume the | |
2375 | token, so that the caller can use it to determine | |
2376 | that this indeed is a foreach context. */ | |
2377 | return; | |
2378 | } | |
27bf414c JM |
2379 | else |
2380 | { | |
2381 | c_parser_error (parser, "expected %<,%> or %<;%>"); | |
2382 | c_parser_skip_to_end_of_block_or_statement (parser); | |
2383 | return; | |
2384 | } | |
2385 | } | |
38b7bc7f JM |
2386 | else if (auto_type_p) |
2387 | { | |
2388 | error_at (here, | |
2389 | "%<__auto_type%> requires an initialized data declaration"); | |
2390 | c_parser_skip_to_end_of_block_or_statement (parser); | |
2391 | return; | |
2392 | } | |
27bf414c JM |
2393 | else if (!fndef_ok) |
2394 | { | |
2395 | c_parser_error (parser, "expected %<=%>, %<,%>, %<;%>, " | |
2396 | "%<asm%> or %<__attribute__%>"); | |
2397 | c_parser_skip_to_end_of_block_or_statement (parser); | |
2398 | return; | |
2399 | } | |
2400 | /* Function definition (nested or otherwise). */ | |
2401 | if (nested) | |
2402 | { | |
c1771a20 | 2403 | pedwarn (here, OPT_Wpedantic, "ISO C forbids nested functions"); |
d2784db4 | 2404 | c_push_function_context (); |
27bf414c JM |
2405 | } |
2406 | if (!start_function (specs, declarator, all_prefix_attrs)) | |
2407 | { | |
1a59ccf2 DM |
2408 | /* At this point we've consumed: |
2409 | declaration-specifiers declarator | |
2410 | and the next token isn't CPP_EQ, CPP_COMMA, CPP_SEMICOLON, | |
2411 | RID_ASM, RID_ATTRIBUTE, or RID_IN, | |
2412 | but the | |
2413 | declaration-specifiers declarator | |
2414 | aren't grokkable as a function definition, so we have | |
2415 | an error. */ | |
2416 | gcc_assert (!c_parser_next_token_is (parser, CPP_SEMICOLON)); | |
2417 | if (c_parser_next_token_starts_declspecs (parser)) | |
2418 | { | |
2419 | /* If we have | |
2420 | declaration-specifiers declarator decl-specs | |
2421 | then assume we have a missing semicolon, which would | |
2422 | give us: | |
2423 | declaration-specifiers declarator decl-specs | |
2424 | ^ | |
2425 | ; | |
2426 | <~~~~~~~~~ declaration ~~~~~~~~~~> | |
2427 | Use c_parser_require to get an error with a fix-it hint. */ | |
2428 | c_parser_require (parser, CPP_SEMICOLON, "expected %<;%>"); | |
2429 | parser->error = false; | |
2430 | } | |
2431 | else | |
2432 | { | |
2433 | /* This can appear in many cases looking nothing like a | |
2434 | function definition, so we don't give a more specific | |
2435 | error suggesting there was one. */ | |
2436 | c_parser_error (parser, "expected %<=%>, %<,%>, %<;%>, %<asm%> " | |
2437 | "or %<__attribute__%>"); | |
2438 | } | |
27bf414c | 2439 | if (nested) |
d2784db4 | 2440 | c_pop_function_context (); |
27bf414c JM |
2441 | break; |
2442 | } | |
575bfb00 LC |
2443 | |
2444 | if (DECL_DECLARED_INLINE_P (current_function_decl)) | |
2445 | tv = TV_PARSE_INLINE; | |
2446 | else | |
2447 | tv = TV_PARSE_FUNC; | |
c2e84327 | 2448 | auto_timevar at (g_timer, tv); |
575bfb00 | 2449 | |
27bf414c JM |
2450 | /* Parse old-style parameter declarations. ??? Attributes are |
2451 | not allowed to start declaration specifiers here because of a | |
2452 | syntax conflict between a function declaration with attribute | |
2453 | suffix and a function definition with an attribute prefix on | |
2454 | first old-style parameter declaration. Following the old | |
2455 | parser, they are not accepted on subsequent old-style | |
2456 | parameter declarations either. However, there is no | |
2457 | ambiguity after the first declaration, nor indeed on the | |
2458 | first as long as we don't allow postfix attributes after a | |
2459 | declarator with a nonempty identifier list in a definition; | |
2460 | and postfix attributes have never been accepted here in | |
2461 | function definitions either. */ | |
2462 | while (c_parser_next_token_is_not (parser, CPP_EOF) | |
2463 | && c_parser_next_token_is_not (parser, CPP_OPEN_BRACE)) | |
32912286 | 2464 | c_parser_declaration_or_fndef (parser, false, false, false, |
acf0174b | 2465 | true, false, NULL, vNULL); |
27bf414c | 2466 | store_parm_decls (); |
5e9d6aa4 | 2467 | if (omp_declare_simd_clauses.exists ()) |
acf0174b JJ |
2468 | c_finish_omp_declare_simd (parser, current_function_decl, NULL_TREE, |
2469 | omp_declare_simd_clauses); | |
0b212d8c | 2470 | if (oacc_routine_data) |
ae9281fc | 2471 | c_finish_oacc_routine (oacc_routine_data, current_function_decl, true); |
5db9e893 | 2472 | location_t startloc = c_parser_peek_token (parser)->location; |
1751ecd6 | 2473 | DECL_STRUCT_FUNCTION (current_function_decl)->function_start_locus |
5db9e893 JJ |
2474 | = startloc; |
2475 | location_t endloc = startloc; | |
1ee62b92 | 2476 | |
baa09dc5 | 2477 | /* If the definition was marked with __RTL, use the RTL parser now, |
c2e84327 | 2478 | consuming the function body. */ |
baa09dc5 | 2479 | if (specs->declspec_il == cdil_rtl) |
c2e84327 | 2480 | { |
9def91e9 | 2481 | endloc = c_parser_parse_rtl_body (parser, specs->gimple_or_rtl_pass); |
c2e84327 DM |
2482 | |
2483 | /* Normally, store_parm_decls sets next_is_function_body, | |
2484 | anticipating a function body. We need a push_scope/pop_scope | |
2485 | pair to flush out this state, or subsequent function parsing | |
2486 | will go wrong. */ | |
2487 | push_scope (); | |
2488 | pop_scope (); | |
2489 | ||
9def91e9 | 2490 | finish_function (endloc); |
c2e84327 DM |
2491 | return; |
2492 | } | |
baa09dc5 RB |
2493 | /* If the definition was marked with __GIMPLE then parse the |
2494 | function body as GIMPLE. */ | |
2495 | else if (specs->declspec_il != cdil_none) | |
2496 | { | |
2497 | bool saved = in_late_binary_op; | |
2498 | in_late_binary_op = true; | |
2499 | c_parser_parse_gimple_body (parser, specs->gimple_or_rtl_pass, | |
d276406a ML |
2500 | specs->declspec_il, |
2501 | specs->entry_bb_count); | |
baa09dc5 RB |
2502 | in_late_binary_op = saved; |
2503 | } | |
1ee62b92 | 2504 | else |
9def91e9 | 2505 | fnbody = c_parser_compound_statement (parser, &endloc); |
1ee62b92 | 2506 | tree fndecl = current_function_decl; |
27bf414c JM |
2507 | if (nested) |
2508 | { | |
2509 | tree decl = current_function_decl; | |
9f62cb92 JJ |
2510 | /* Mark nested functions as needing static-chain initially. |
2511 | lower_nested_functions will recompute it but the | |
2512 | DECL_STATIC_CHAIN flag is also used before that happens, | |
2513 | by initializer_constant_valid_p. See gcc.dg/nested-fn-2.c. */ | |
2514 | DECL_STATIC_CHAIN (decl) = 1; | |
27bf414c | 2515 | add_stmt (fnbody); |
9def91e9 | 2516 | finish_function (endloc); |
d2784db4 | 2517 | c_pop_function_context (); |
c2255bc4 | 2518 | add_stmt (build_stmt (DECL_SOURCE_LOCATION (decl), DECL_EXPR, decl)); |
27bf414c JM |
2519 | } |
2520 | else | |
2521 | { | |
1ee62b92 PG |
2522 | if (fnbody) |
2523 | add_stmt (fnbody); | |
9def91e9 | 2524 | finish_function (endloc); |
27bf414c | 2525 | } |
baa09dc5 RB |
2526 | /* Get rid of the empty stmt list for GIMPLE/RTL. */ |
2527 | if (specs->declspec_il != cdil_none) | |
1ee62b92 | 2528 | DECL_SAVED_TREE (fndecl) = NULL_TREE; |
575bfb00 | 2529 | |
27bf414c JM |
2530 | break; |
2531 | } | |
2532 | } | |
2533 | ||
2534 | /* Parse an asm-definition (asm() outside a function body). This is a | |
2535 | GNU extension. | |
2536 | ||
2537 | asm-definition: | |
2538 | simple-asm-expr ; | |
2539 | */ | |
2540 | ||
2541 | static void | |
2542 | c_parser_asm_definition (c_parser *parser) | |
2543 | { | |
2544 | tree asm_str = c_parser_simple_asm_expr (parser); | |
27bf414c | 2545 | if (asm_str) |
3dafb85c | 2546 | symtab->finalize_toplevel_asm (asm_str); |
27bf414c JM |
2547 | c_parser_skip_until_found (parser, CPP_SEMICOLON, "expected %<;%>"); |
2548 | } | |
2549 | ||
48b0b196 | 2550 | /* Parse a static assertion (C11 6.7.10). |
32912286 JM |
2551 | |
2552 | static_assert-declaration: | |
2553 | static_assert-declaration-no-semi ; | |
2554 | */ | |
2555 | ||
2556 | static void | |
2557 | c_parser_static_assert_declaration (c_parser *parser) | |
2558 | { | |
2559 | c_parser_static_assert_declaration_no_semi (parser); | |
2560 | if (parser->error | |
2561 | || !c_parser_require (parser, CPP_SEMICOLON, "expected %<;%>")) | |
2562 | c_parser_skip_to_end_of_block_or_statement (parser); | |
2563 | } | |
2564 | ||
48b0b196 | 2565 | /* Parse a static assertion (C11 6.7.10), without the trailing |
32912286 JM |
2566 | semicolon. |
2567 | ||
2568 | static_assert-declaration-no-semi: | |
2569 | _Static_assert ( constant-expression , string-literal ) | |
9f936c86 JM |
2570 | |
2571 | C2X: | |
2572 | static_assert-declaration-no-semi: | |
2573 | _Static_assert ( constant-expression ) | |
32912286 JM |
2574 | */ |
2575 | ||
2576 | static void | |
2577 | c_parser_static_assert_declaration_no_semi (c_parser *parser) | |
2578 | { | |
2579 | location_t assert_loc, value_loc; | |
2580 | tree value; | |
9f936c86 | 2581 | tree string = NULL_TREE; |
32912286 JM |
2582 | |
2583 | gcc_assert (c_parser_next_token_is_keyword (parser, RID_STATIC_ASSERT)); | |
2584 | assert_loc = c_parser_peek_token (parser)->location; | |
35aff4fb MP |
2585 | if (flag_isoc99) |
2586 | pedwarn_c99 (assert_loc, OPT_Wpedantic, | |
32912286 | 2587 | "ISO C99 does not support %<_Static_assert%>"); |
35aff4fb MP |
2588 | else |
2589 | pedwarn_c99 (assert_loc, OPT_Wpedantic, | |
32912286 | 2590 | "ISO C90 does not support %<_Static_assert%>"); |
32912286 | 2591 | c_parser_consume_token (parser); |
32129a17 DM |
2592 | matching_parens parens; |
2593 | if (!parens.require_open (parser)) | |
32912286 | 2594 | return; |
8062bca6 | 2595 | location_t value_tok_loc = c_parser_peek_token (parser)->location; |
32912286 | 2596 | value = c_parser_expr_no_commas (parser, NULL).value; |
8062bca6 | 2597 | value_loc = EXPR_LOC_OR_LOC (value, value_tok_loc); |
9f936c86 | 2598 | if (c_parser_next_token_is (parser, CPP_COMMA)) |
32912286 | 2599 | { |
32912286 | 2600 | c_parser_consume_token (parser); |
9f936c86 JM |
2601 | switch (c_parser_peek_token (parser)->type) |
2602 | { | |
2603 | case CPP_STRING: | |
2604 | case CPP_STRING16: | |
2605 | case CPP_STRING32: | |
2606 | case CPP_WSTRING: | |
2607 | case CPP_UTF8STRING: | |
471c5330 | 2608 | string = c_parser_string_literal (parser, false, true).value; |
9f936c86 JM |
2609 | break; |
2610 | default: | |
2611 | c_parser_error (parser, "expected string literal"); | |
9f936c86 JM |
2612 | return; |
2613 | } | |
32912286 | 2614 | } |
9f936c86 JM |
2615 | else if (flag_isoc11) |
2616 | /* If pedantic for pre-C11, the use of _Static_assert itself will | |
2617 | have been diagnosed, so do not also diagnose the use of this | |
2618 | new C2X feature of _Static_assert. */ | |
2619 | pedwarn_c11 (assert_loc, OPT_Wpedantic, | |
2620 | "ISO C11 does not support omitting the string in " | |
2621 | "%<_Static_assert%>"); | |
32129a17 | 2622 | parens.require_close (parser); |
32912286 JM |
2623 | |
2624 | if (!INTEGRAL_TYPE_P (TREE_TYPE (value))) | |
2625 | { | |
2626 | error_at (value_loc, "expression in static assertion is not an integer"); | |
2627 | return; | |
2628 | } | |
2629 | if (TREE_CODE (value) != INTEGER_CST) | |
2630 | { | |
2631 | value = c_fully_fold (value, false, NULL); | |
8d95fe25 MP |
2632 | /* Strip no-op conversions. */ |
2633 | STRIP_TYPE_NOPS (value); | |
32912286 | 2634 | if (TREE_CODE (value) == INTEGER_CST) |
c1771a20 | 2635 | pedwarn (value_loc, OPT_Wpedantic, "expression in static assertion " |
32912286 JM |
2636 | "is not an integer constant expression"); |
2637 | } | |
2638 | if (TREE_CODE (value) != INTEGER_CST) | |
2639 | { | |
2640 | error_at (value_loc, "expression in static assertion is not constant"); | |
2641 | return; | |
2642 | } | |
2643 | constant_expression_warning (value); | |
2644 | if (integer_zerop (value)) | |
9f936c86 JM |
2645 | { |
2646 | if (string) | |
2647 | error_at (assert_loc, "static assertion failed: %E", string); | |
2648 | else | |
2649 | error_at (assert_loc, "static assertion failed"); | |
2650 | } | |
32912286 JM |
2651 | } |
2652 | ||
27bf414c | 2653 | /* Parse some declaration specifiers (possibly none) (C90 6.5, C99 |
31dc71a8 | 2654 | 6.7, C11 6.7), adding them to SPECS (which may already include some). |
27bf414c | 2655 | Storage class specifiers are accepted iff SCSPEC_OK; type |
568a31f2 | 2656 | specifiers are accepted iff TYPESPEC_OK; alignment specifiers are |
783bfe5e | 2657 | accepted iff ALIGNSPEC_OK; gnu-attributes are accepted at the start |
4e03c3a7 JM |
2658 | iff START_ATTR_OK; __auto_type is accepted iff AUTO_TYPE_OK. In |
2659 | addition to the syntax shown, standard attributes are accepted at | |
2660 | the start iff START_STD_ATTR_OK and at the end iff END_STD_ATTR_OK; | |
2661 | unlike gnu-attributes, they are not accepted in the middle of the | |
2662 | list. (This combines various different syntax productions in the C | |
2663 | standard, and in some cases gnu-attributes and standard attributes | |
2664 | at the start may already have been parsed before this function is | |
2665 | called.) | |
27bf414c JM |
2666 | |
2667 | declaration-specifiers: | |
2668 | storage-class-specifier declaration-specifiers[opt] | |
2669 | type-specifier declaration-specifiers[opt] | |
2670 | type-qualifier declaration-specifiers[opt] | |
2671 | function-specifier declaration-specifiers[opt] | |
d19fa6b5 | 2672 | alignment-specifier declaration-specifiers[opt] |
27bf414c JM |
2673 | |
2674 | Function specifiers (inline) are from C99, and are currently | |
d19fa6b5 | 2675 | handled as storage class specifiers, as is __thread. Alignment |
48b0b196 | 2676 | specifiers are from C11. |
27bf414c | 2677 | |
31dc71a8 | 2678 | C90 6.5.1, C99 6.7.1, C11 6.7.1: |
27bf414c JM |
2679 | storage-class-specifier: |
2680 | typedef | |
2681 | extern | |
2682 | static | |
2683 | auto | |
2684 | register | |
582d9b50 JM |
2685 | _Thread_local |
2686 | ||
2687 | (_Thread_local is new in C11.) | |
27bf414c | 2688 | |
31dc71a8 | 2689 | C99 6.7.4, C11 6.7.4: |
27bf414c JM |
2690 | function-specifier: |
2691 | inline | |
c4b3a0a0 JM |
2692 | _Noreturn |
2693 | ||
48b0b196 | 2694 | (_Noreturn is new in C11.) |
27bf414c | 2695 | |
31dc71a8 | 2696 | C90 6.5.2, C99 6.7.2, C11 6.7.2: |
27bf414c JM |
2697 | type-specifier: |
2698 | void | |
2699 | char | |
2700 | short | |
2701 | int | |
2702 | long | |
2703 | float | |
2704 | double | |
2705 | signed | |
2706 | unsigned | |
2707 | _Bool | |
2708 | _Complex | |
2709 | [_Imaginary removed in C99 TC2] | |
2710 | struct-or-union-specifier | |
2711 | enum-specifier | |
2712 | typedef-name | |
267bac10 | 2713 | atomic-type-specifier |
27bf414c JM |
2714 | |
2715 | (_Bool and _Complex are new in C99.) | |
267bac10 | 2716 | (atomic-type-specifier is new in C11.) |
27bf414c | 2717 | |
31dc71a8 | 2718 | C90 6.5.3, C99 6.7.3, C11 6.7.3: |
27bf414c JM |
2719 | |
2720 | type-qualifier: | |
2721 | const | |
2722 | restrict | |
2723 | volatile | |
36c5e70a | 2724 | address-space-qualifier |
267bac10 | 2725 | _Atomic |
27bf414c JM |
2726 | |
2727 | (restrict is new in C99.) | |
267bac10 | 2728 | (_Atomic is new in C11.) |
27bf414c JM |
2729 | |
2730 | GNU extensions: | |
2731 | ||
2732 | declaration-specifiers: | |
783bfe5e | 2733 | gnu-attributes declaration-specifiers[opt] |
27bf414c | 2734 | |
36c5e70a BE |
2735 | type-qualifier: |
2736 | address-space | |
2737 | ||
2738 | address-space: | |
2739 | identifier recognized by the target | |
2740 | ||
27bf414c JM |
2741 | storage-class-specifier: |
2742 | __thread | |
2743 | ||
2744 | type-specifier: | |
2745 | typeof-specifier | |
38b7bc7f | 2746 | __auto_type |
78a7c317 | 2747 | __intN |
9a8ce21f JG |
2748 | _Decimal32 |
2749 | _Decimal64 | |
2750 | _Decimal128 | |
ab22c1fa CF |
2751 | _Fract |
2752 | _Accum | |
2753 | _Sat | |
2754 | ||
2755 | (_Fract, _Accum, and _Sat are new from ISO/IEC DTR 18037: | |
2756 | http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1169.pdf) | |
27bf414c | 2757 | |
267bac10 JM |
2758 | atomic-type-specifier |
2759 | _Atomic ( type-name ) | |
2760 | ||
27bf414c JM |
2761 | Objective-C: |
2762 | ||
2763 | type-specifier: | |
2764 | class-name objc-protocol-refs[opt] | |
2765 | typedef-name objc-protocol-refs | |
2766 | objc-protocol-refs | |
2767 | */ | |
2768 | ||
1ee62b92 | 2769 | void |
27bf414c | 2770 | c_parser_declspecs (c_parser *parser, struct c_declspecs *specs, |
29ce73cb | 2771 | bool scspec_ok, bool typespec_ok, bool start_attr_ok, |
38b7bc7f | 2772 | bool alignspec_ok, bool auto_type_ok, |
4e03c3a7 | 2773 | bool start_std_attr_ok, bool end_std_attr_ok, |
38b7bc7f | 2774 | enum c_lookahead_kind la) |
27bf414c JM |
2775 | { |
2776 | bool attrs_ok = start_attr_ok; | |
9e5b2115 | 2777 | bool seen_type = specs->typespec_kind != ctsk_none; |
29ce73cb PB |
2778 | |
2779 | if (!typespec_ok) | |
2780 | gcc_assert (la == cla_prefer_id); | |
2781 | ||
4e03c3a7 JM |
2782 | if (start_std_attr_ok |
2783 | && c_parser_nth_token_starts_std_attributes (parser, 1)) | |
2784 | { | |
2785 | gcc_assert (!specs->non_std_attrs_seen_p); | |
2786 | location_t loc = c_parser_peek_token (parser)->location; | |
2787 | tree attrs = c_parser_std_attribute_specifier_sequence (parser); | |
2788 | declspecs_add_attrs (loc, specs, attrs); | |
2789 | specs->non_std_attrs_seen_p = false; | |
2790 | } | |
2791 | ||
29ce73cb | 2792 | while (c_parser_next_token_is (parser, CPP_NAME) |
27bf414c JM |
2793 | || c_parser_next_token_is (parser, CPP_KEYWORD) |
2794 | || (c_dialect_objc () && c_parser_next_token_is (parser, CPP_LESS))) | |
2795 | { | |
2796 | struct c_typespec t; | |
2797 | tree attrs; | |
d19fa6b5 | 2798 | tree align; |
dc491a25 | 2799 | location_t loc = c_parser_peek_token (parser)->location; |
f725e721 | 2800 | |
29ce73cb PB |
2801 | /* If we cannot accept a type, exit if the next token must start |
2802 | one. Also, if we already have seen a tagged definition, | |
2803 | a typename would be an error anyway and likely the user | |
2804 | has simply forgotten a semicolon, so we exit. */ | |
2805 | if ((!typespec_ok || specs->typespec_kind == ctsk_tagdef) | |
2806 | && c_parser_next_tokens_start_typename (parser, la) | |
4b2b493f JM |
2807 | && !c_parser_next_token_is_qualifier (parser) |
2808 | && !c_parser_next_token_is_keyword (parser, RID_ALIGNAS)) | |
29ce73cb | 2809 | break; |
f725e721 | 2810 | |
27bf414c JM |
2811 | if (c_parser_next_token_is (parser, CPP_NAME)) |
2812 | { | |
0b2c4be5 DS |
2813 | c_token *name_token = c_parser_peek_token (parser); |
2814 | tree value = name_token->value; | |
2815 | c_id_kind kind = name_token->id_kind; | |
36c5e70a BE |
2816 | |
2817 | if (kind == C_ID_ADDRSPACE) | |
2818 | { | |
2819 | addr_space_t as | |
0b2c4be5 DS |
2820 | = name_token->keyword - RID_FIRST_ADDR_SPACE; |
2821 | declspecs_add_addrspace (name_token->location, specs, as); | |
36c5e70a BE |
2822 | c_parser_consume_token (parser); |
2823 | attrs_ok = true; | |
2824 | continue; | |
2825 | } | |
2826 | ||
29ce73cb PB |
2827 | gcc_assert (!c_parser_next_token_is_qualifier (parser)); |
2828 | ||
2829 | /* If we cannot accept a type, and the next token must start one, | |
2830 | exit. Do the same if we already have seen a tagged definition, | |
2831 | since it would be an error anyway and likely the user has simply | |
2832 | forgotten a semicolon. */ | |
2833 | if (seen_type || !c_parser_next_tokens_start_typename (parser, la)) | |
2834 | break; | |
2835 | ||
2836 | /* Now at an unknown typename (C_ID_ID), a C_ID_TYPENAME or | |
2837 | a C_ID_CLASSNAME. */ | |
27bf414c JM |
2838 | c_parser_consume_token (parser); |
2839 | seen_type = true; | |
2840 | attrs_ok = true; | |
29ce73cb PB |
2841 | if (kind == C_ID_ID) |
2842 | { | |
1c9f5f33 | 2843 | error_at (loc, "unknown type name %qE", value); |
29ce73cb PB |
2844 | t.kind = ctsk_typedef; |
2845 | t.spec = error_mark_node; | |
2846 | } | |
2847 | else if (kind == C_ID_TYPENAME | |
2848 | && (!c_dialect_objc () | |
2849 | || c_parser_next_token_is_not (parser, CPP_LESS))) | |
27bf414c JM |
2850 | { |
2851 | t.kind = ctsk_typedef; | |
2852 | /* For a typedef name, record the meaning, not the name. | |
2853 | In case of 'foo foo, bar;'. */ | |
2854 | t.spec = lookup_name (value); | |
2855 | } | |
2856 | else | |
2857 | { | |
2858 | tree proto = NULL_TREE; | |
2859 | gcc_assert (c_dialect_objc ()); | |
2860 | t.kind = ctsk_objc; | |
2861 | if (c_parser_next_token_is (parser, CPP_LESS)) | |
2862 | proto = c_parser_objc_protocol_refs (parser); | |
2863 | t.spec = objc_get_protocol_qualified_type (value, proto); | |
2864 | } | |
29ce73cb PB |
2865 | t.expr = NULL_TREE; |
2866 | t.expr_const_operands = true; | |
0b2c4be5 | 2867 | declspecs_add_type (name_token->location, specs, t); |
27bf414c JM |
2868 | continue; |
2869 | } | |
2870 | if (c_parser_next_token_is (parser, CPP_LESS)) | |
2871 | { | |
2872 | /* Make "<SomeProtocol>" equivalent to "id <SomeProtocol>" - | |
2873 | nisse@lysator.liu.se. */ | |
2874 | tree proto; | |
2875 | gcc_assert (c_dialect_objc ()); | |
2876 | if (!typespec_ok || seen_type) | |
2877 | break; | |
2878 | proto = c_parser_objc_protocol_refs (parser); | |
2879 | t.kind = ctsk_objc; | |
2880 | t.spec = objc_get_protocol_qualified_type (NULL_TREE, proto); | |
928c19bb JM |
2881 | t.expr = NULL_TREE; |
2882 | t.expr_const_operands = true; | |
dc491a25 | 2883 | declspecs_add_type (loc, specs, t); |
27bf414c JM |
2884 | continue; |
2885 | } | |
2886 | gcc_assert (c_parser_next_token_is (parser, CPP_KEYWORD)); | |
2887 | switch (c_parser_peek_token (parser)->keyword) | |
2888 | { | |
2889 | case RID_STATIC: | |
2890 | case RID_EXTERN: | |
2891 | case RID_REGISTER: | |
2892 | case RID_TYPEDEF: | |
2893 | case RID_INLINE: | |
bbceee64 | 2894 | case RID_NORETURN: |
27bf414c JM |
2895 | case RID_AUTO: |
2896 | case RID_THREAD: | |
2897 | if (!scspec_ok) | |
2898 | goto out; | |
2899 | attrs_ok = true; | |
bbceee64 | 2900 | /* TODO: Distinguish between function specifiers (inline, noreturn) |
27bf414c JM |
2901 | and storage class specifiers, either here or in |
2902 | declspecs_add_scspec. */ | |
0b2c4be5 DS |
2903 | declspecs_add_scspec (loc, specs, |
2904 | c_parser_peek_token (parser)->value); | |
27bf414c JM |
2905 | c_parser_consume_token (parser); |
2906 | break; | |
38b7bc7f JM |
2907 | case RID_AUTO_TYPE: |
2908 | if (!auto_type_ok) | |
2909 | goto out; | |
2910 | /* Fall through. */ | |
27bf414c JM |
2911 | case RID_UNSIGNED: |
2912 | case RID_LONG: | |
2913 | case RID_SHORT: | |
2914 | case RID_SIGNED: | |
2915 | case RID_COMPLEX: | |
2916 | case RID_INT: | |
2917 | case RID_CHAR: | |
2918 | case RID_FLOAT: | |
2919 | case RID_DOUBLE: | |
2920 | case RID_VOID: | |
9a8ce21f JG |
2921 | case RID_DFLOAT32: |
2922 | case RID_DFLOAT64: | |
2923 | case RID_DFLOAT128: | |
c65699ef | 2924 | CASE_RID_FLOATN_NX: |
27bf414c | 2925 | case RID_BOOL: |
ab22c1fa CF |
2926 | case RID_FRACT: |
2927 | case RID_ACCUM: | |
2928 | case RID_SAT: | |
78a7c317 DD |
2929 | case RID_INT_N_0: |
2930 | case RID_INT_N_1: | |
2931 | case RID_INT_N_2: | |
2932 | case RID_INT_N_3: | |
27bf414c JM |
2933 | if (!typespec_ok) |
2934 | goto out; | |
2935 | attrs_ok = true; | |
2936 | seen_type = true; | |
0bacb8c7 TT |
2937 | if (c_dialect_objc ()) |
2938 | parser->objc_need_raw_identifier = true; | |
27bf414c JM |
2939 | t.kind = ctsk_resword; |
2940 | t.spec = c_parser_peek_token (parser)->value; | |
928c19bb JM |
2941 | t.expr = NULL_TREE; |
2942 | t.expr_const_operands = true; | |
dc491a25 | 2943 | declspecs_add_type (loc, specs, t); |
27bf414c JM |
2944 | c_parser_consume_token (parser); |
2945 | break; | |
2946 | case RID_ENUM: | |
2947 | if (!typespec_ok) | |
2948 | goto out; | |
2949 | attrs_ok = true; | |
2950 | seen_type = true; | |
2951 | t = c_parser_enum_specifier (parser); | |
a4bb6959 | 2952 | invoke_plugin_callbacks (PLUGIN_FINISH_TYPE, t.spec); |
dc491a25 | 2953 | declspecs_add_type (loc, specs, t); |
27bf414c JM |
2954 | break; |
2955 | case RID_STRUCT: | |
2956 | case RID_UNION: | |
2957 | if (!typespec_ok) | |
2958 | goto out; | |
2959 | attrs_ok = true; | |
2960 | seen_type = true; | |
2961 | t = c_parser_struct_or_union_specifier (parser); | |
dab71827 | 2962 | invoke_plugin_callbacks (PLUGIN_FINISH_TYPE, t.spec); |
dc491a25 | 2963 | declspecs_add_type (loc, specs, t); |
27bf414c JM |
2964 | break; |
2965 | case RID_TYPEOF: | |
2966 | /* ??? The old parser rejected typeof after other type | |
2967 | specifiers, but is a syntax error the best way of | |
2968 | handling this? */ | |
2969 | if (!typespec_ok || seen_type) | |
2970 | goto out; | |
2971 | attrs_ok = true; | |
2972 | seen_type = true; | |
2973 | t = c_parser_typeof_specifier (parser); | |
dc491a25 | 2974 | declspecs_add_type (loc, specs, t); |
27bf414c | 2975 | break; |
267bac10 JM |
2976 | case RID_ATOMIC: |
2977 | /* C parser handling of Objective-C constructs needs | |
2978 | checking for correct lvalue-to-rvalue conversions, and | |
2979 | the code in build_modify_expr handling various | |
2980 | Objective-C cases, and that in build_unary_op handling | |
2981 | Objective-C cases for increment / decrement, also needs | |
2982 | updating; uses of TYPE_MAIN_VARIANT in objc_compare_types | |
2983 | and objc_types_are_equivalent may also need updates. */ | |
2984 | if (c_dialect_objc ()) | |
2985 | sorry ("%<_Atomic%> in Objective-C"); | |
35aff4fb MP |
2986 | if (flag_isoc99) |
2987 | pedwarn_c99 (loc, OPT_Wpedantic, | |
267bac10 | 2988 | "ISO C99 does not support the %<_Atomic%> qualifier"); |
35aff4fb MP |
2989 | else |
2990 | pedwarn_c99 (loc, OPT_Wpedantic, | |
267bac10 | 2991 | "ISO C90 does not support the %<_Atomic%> qualifier"); |
267bac10 JM |
2992 | attrs_ok = true; |
2993 | tree value; | |
2994 | value = c_parser_peek_token (parser)->value; | |
2995 | c_parser_consume_token (parser); | |
2996 | if (typespec_ok && c_parser_next_token_is (parser, CPP_OPEN_PAREN)) | |
2997 | { | |
2998 | /* _Atomic ( type-name ). */ | |
2999 | seen_type = true; | |
3000 | c_parser_consume_token (parser); | |
3001 | struct c_type_name *type = c_parser_type_name (parser); | |
3002 | t.kind = ctsk_typeof; | |
3003 | t.spec = error_mark_node; | |
3004 | t.expr = NULL_TREE; | |
3005 | t.expr_const_operands = true; | |
3006 | if (type != NULL) | |
3007 | t.spec = groktypename (type, &t.expr, | |
3008 | &t.expr_const_operands); | |
3009 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, | |
3010 | "expected %<)%>"); | |
3011 | if (t.spec != error_mark_node) | |
3012 | { | |
3013 | if (TREE_CODE (t.spec) == ARRAY_TYPE) | |
3014 | error_at (loc, "%<_Atomic%>-qualified array type"); | |
3015 | else if (TREE_CODE (t.spec) == FUNCTION_TYPE) | |
3016 | error_at (loc, "%<_Atomic%>-qualified function type"); | |
3017 | else if (TYPE_QUALS (t.spec) != TYPE_UNQUALIFIED) | |
3018 | error_at (loc, "%<_Atomic%> applied to a qualified type"); | |
3019 | else | |
3020 | t.spec = c_build_qualified_type (t.spec, TYPE_QUAL_ATOMIC); | |
3021 | } | |
3022 | declspecs_add_type (loc, specs, t); | |
3023 | } | |
3024 | else | |
3025 | declspecs_add_qual (loc, specs, value); | |
3026 | break; | |
27bf414c JM |
3027 | case RID_CONST: |
3028 | case RID_VOLATILE: | |
3029 | case RID_RESTRICT: | |
3030 | attrs_ok = true; | |
0b2c4be5 | 3031 | declspecs_add_qual (loc, specs, c_parser_peek_token (parser)->value); |
27bf414c JM |
3032 | c_parser_consume_token (parser); |
3033 | break; | |
3034 | case RID_ATTRIBUTE: | |
3035 | if (!attrs_ok) | |
3036 | goto out; | |
783bfe5e | 3037 | attrs = c_parser_gnu_attributes (parser); |
0b2c4be5 | 3038 | declspecs_add_attrs (loc, specs, attrs); |
27bf414c | 3039 | break; |
d19fa6b5 | 3040 | case RID_ALIGNAS: |
568a31f2 MP |
3041 | if (!alignspec_ok) |
3042 | goto out; | |
d19fa6b5 | 3043 | align = c_parser_alignas_specifier (parser); |
0b2c4be5 | 3044 | declspecs_add_alignas (loc, specs, align); |
d19fa6b5 | 3045 | break; |
1ee62b92 PG |
3046 | case RID_GIMPLE: |
3047 | if (! flag_gimple) | |
a3f9f006 | 3048 | error_at (loc, "%<__GIMPLE%> only valid with %<-fgimple%>"); |
1ee62b92 | 3049 | c_parser_consume_token (parser); |
baa09dc5 | 3050 | specs->declspec_il = cdil_gimple; |
1ee62b92 | 3051 | specs->locations[cdw_gimple] = loc; |
baa09dc5 | 3052 | c_parser_gimple_or_rtl_pass_list (parser, specs); |
c2e84327 DM |
3053 | break; |
3054 | case RID_RTL: | |
3055 | c_parser_consume_token (parser); | |
baa09dc5 | 3056 | specs->declspec_il = cdil_rtl; |
c2e84327 | 3057 | specs->locations[cdw_rtl] = loc; |
baa09dc5 | 3058 | c_parser_gimple_or_rtl_pass_list (parser, specs); |
1ee62b92 | 3059 | break; |
27bf414c JM |
3060 | default: |
3061 | goto out; | |
3062 | } | |
3063 | } | |
4e03c3a7 JM |
3064 | out: |
3065 | if (end_std_attr_ok | |
3066 | && c_parser_nth_token_starts_std_attributes (parser, 1)) | |
3067 | specs->postfix_attrs = c_parser_std_attribute_specifier_sequence (parser); | |
27bf414c JM |
3068 | } |
3069 | ||
31dc71a8 | 3070 | /* Parse an enum specifier (C90 6.5.2.2, C99 6.7.2.2, C11 6.7.2.2). |
27bf414c JM |
3071 | |
3072 | enum-specifier: | |
783bfe5e JM |
3073 | enum gnu-attributes[opt] identifier[opt] { enumerator-list } |
3074 | gnu-attributes[opt] | |
3075 | enum gnu-attributes[opt] identifier[opt] { enumerator-list , } | |
3076 | gnu-attributes[opt] | |
3077 | enum gnu-attributes[opt] identifier | |
27bf414c JM |
3078 | |
3079 | The form with trailing comma is new in C99. The forms with | |
783bfe5e | 3080 | gnu-attributes are GNU extensions. In GNU C, we accept any expression |
27bf414c JM |
3081 | without commas in the syntax (assignment expressions, not just |
3082 | conditional expressions); assignment expressions will be diagnosed | |
3083 | as non-constant. | |
3084 | ||
3085 | enumerator-list: | |
3086 | enumerator | |
3087 | enumerator-list , enumerator | |
3088 | ||
3089 | enumerator: | |
4e03c3a7 JM |
3090 | enumeration-constant attribute-specifier-sequence[opt] |
3091 | enumeration-constant attribute-specifier-sequence[opt] | |
3092 | = constant-expression | |
fd5c817a MP |
3093 | |
3094 | GNU Extensions: | |
3095 | ||
3096 | enumerator: | |
4e03c3a7 JM |
3097 | enumeration-constant attribute-specifier-sequence[opt] gnu-attributes[opt] |
3098 | enumeration-constant attribute-specifier-sequence[opt] gnu-attributes[opt] | |
3099 | = constant-expression | |
fd5c817a | 3100 | |
27bf414c JM |
3101 | */ |
3102 | ||
3103 | static struct c_typespec | |
3104 | c_parser_enum_specifier (c_parser *parser) | |
3105 | { | |
3106 | struct c_typespec ret; | |
4e03c3a7 JM |
3107 | bool have_std_attrs; |
3108 | tree std_attrs = NULL_TREE; | |
27bf414c JM |
3109 | tree attrs; |
3110 | tree ident = NULL_TREE; | |
24b97832 | 3111 | location_t enum_loc; |
922f2908 | 3112 | location_t ident_loc = UNKNOWN_LOCATION; /* Quiet warning. */ |
27bf414c JM |
3113 | gcc_assert (c_parser_next_token_is_keyword (parser, RID_ENUM)); |
3114 | c_parser_consume_token (parser); | |
4e03c3a7 JM |
3115 | have_std_attrs = c_parser_nth_token_starts_std_attributes (parser, 1); |
3116 | if (have_std_attrs) | |
3117 | std_attrs = c_parser_std_attribute_specifier_sequence (parser); | |
783bfe5e | 3118 | attrs = c_parser_gnu_attributes (parser); |
c2255bc4 | 3119 | enum_loc = c_parser_peek_token (parser)->location; |
5af28c74 TT |
3120 | /* Set the location in case we create a decl now. */ |
3121 | c_parser_set_source_position_from_token (c_parser_peek_token (parser)); | |
27bf414c JM |
3122 | if (c_parser_next_token_is (parser, CPP_NAME)) |
3123 | { | |
3124 | ident = c_parser_peek_token (parser)->value; | |
c7412148 | 3125 | ident_loc = c_parser_peek_token (parser)->location; |
24b97832 | 3126 | enum_loc = ident_loc; |
27bf414c JM |
3127 | c_parser_consume_token (parser); |
3128 | } | |
3129 | if (c_parser_next_token_is (parser, CPP_OPEN_BRACE)) | |
3130 | { | |
3131 | /* Parse an enum definition. */ | |
7114359f | 3132 | struct c_enum_contents the_enum; |
575bfb00 | 3133 | tree type; |
27bf414c JM |
3134 | tree postfix_attrs; |
3135 | /* We chain the enumerators in reverse order, then put them in | |
3136 | forward order at the end. */ | |
575bfb00 LC |
3137 | tree values; |
3138 | timevar_push (TV_PARSE_ENUM); | |
3139 | type = start_enum (enum_loc, &the_enum, ident); | |
3140 | values = NULL_TREE; | |
27bf414c JM |
3141 | c_parser_consume_token (parser); |
3142 | while (true) | |
3143 | { | |
3144 | tree enum_id; | |
3145 | tree enum_value; | |
3146 | tree enum_decl; | |
3147 | bool seen_comma; | |
5af28c74 | 3148 | c_token *token; |
922f2908 | 3149 | location_t comma_loc = UNKNOWN_LOCATION; /* Quiet warning. */ |
7370e0da | 3150 | location_t decl_loc, value_loc; |
27bf414c JM |
3151 | if (c_parser_next_token_is_not (parser, CPP_NAME)) |
3152 | { | |
d04ff417 MP |
3153 | /* Give a nicer error for "enum {}". */ |
3154 | if (c_parser_next_token_is (parser, CPP_CLOSE_BRACE) | |
3155 | && !parser->error) | |
3156 | { | |
3157 | error_at (c_parser_peek_token (parser)->location, | |
3158 | "empty enum is invalid"); | |
3159 | parser->error = true; | |
3160 | } | |
3161 | else | |
3162 | c_parser_error (parser, "expected identifier"); | |
27bf414c JM |
3163 | c_parser_skip_until_found (parser, CPP_CLOSE_BRACE, NULL); |
3164 | values = error_mark_node; | |
3165 | break; | |
3166 | } | |
5af28c74 TT |
3167 | token = c_parser_peek_token (parser); |
3168 | enum_id = token->value; | |
3169 | /* Set the location in case we create a decl now. */ | |
3170 | c_parser_set_source_position_from_token (token); | |
7370e0da | 3171 | decl_loc = value_loc = token->location; |
27bf414c | 3172 | c_parser_consume_token (parser); |
fd5c817a | 3173 | /* Parse any specified attributes. */ |
4e03c3a7 JM |
3174 | tree std_attrs = NULL_TREE; |
3175 | if (c_parser_nth_token_starts_std_attributes (parser, 1)) | |
3176 | std_attrs = c_parser_std_attribute_specifier_sequence (parser); | |
3177 | tree enum_attrs = chainon (std_attrs, | |
3178 | c_parser_gnu_attributes (parser)); | |
27bf414c JM |
3179 | if (c_parser_next_token_is (parser, CPP_EQ)) |
3180 | { | |
3181 | c_parser_consume_token (parser); | |
85790e66 | 3182 | value_loc = c_parser_peek_token (parser)->location; |
27bf414c JM |
3183 | enum_value = c_parser_expr_no_commas (parser, NULL).value; |
3184 | } | |
3185 | else | |
3186 | enum_value = NULL_TREE; | |
7370e0da | 3187 | enum_decl = build_enumerator (decl_loc, value_loc, |
fd5c817a MP |
3188 | &the_enum, enum_id, enum_value); |
3189 | if (enum_attrs) | |
3190 | decl_attributes (&TREE_PURPOSE (enum_decl), enum_attrs, 0); | |
27bf414c JM |
3191 | TREE_CHAIN (enum_decl) = values; |
3192 | values = enum_decl; | |
3193 | seen_comma = false; | |
3194 | if (c_parser_next_token_is (parser, CPP_COMMA)) | |
3195 | { | |
c7412148 | 3196 | comma_loc = c_parser_peek_token (parser)->location; |
27bf414c JM |
3197 | seen_comma = true; |
3198 | c_parser_consume_token (parser); | |
3199 | } | |
3200 | if (c_parser_next_token_is (parser, CPP_CLOSE_BRACE)) | |
3201 | { | |
f3bede71 MP |
3202 | if (seen_comma) |
3203 | pedwarn_c90 (comma_loc, OPT_Wpedantic, | |
3204 | "comma at end of enumerator list"); | |
27bf414c JM |
3205 | c_parser_consume_token (parser); |
3206 | break; | |
3207 | } | |
3208 | if (!seen_comma) | |
3209 | { | |
3210 | c_parser_error (parser, "expected %<,%> or %<}%>"); | |
3211 | c_parser_skip_until_found (parser, CPP_CLOSE_BRACE, NULL); | |
3212 | values = error_mark_node; | |
3213 | break; | |
3214 | } | |
3215 | } | |
783bfe5e | 3216 | postfix_attrs = c_parser_gnu_attributes (parser); |
27bf414c | 3217 | ret.spec = finish_enum (type, nreverse (values), |
4e03c3a7 JM |
3218 | chainon (std_attrs, |
3219 | chainon (attrs, postfix_attrs))); | |
27bf414c | 3220 | ret.kind = ctsk_tagdef; |
928c19bb JM |
3221 | ret.expr = NULL_TREE; |
3222 | ret.expr_const_operands = true; | |
575bfb00 | 3223 | timevar_pop (TV_PARSE_ENUM); |
27bf414c JM |
3224 | return ret; |
3225 | } | |
3226 | else if (!ident) | |
3227 | { | |
3228 | c_parser_error (parser, "expected %<{%>"); | |
3229 | ret.spec = error_mark_node; | |
3230 | ret.kind = ctsk_tagref; | |
928c19bb JM |
3231 | ret.expr = NULL_TREE; |
3232 | ret.expr_const_operands = true; | |
27bf414c JM |
3233 | return ret; |
3234 | } | |
4e03c3a7 JM |
3235 | /* Attributes may only appear when the members are defined or in |
3236 | certain forward declarations (treat enum forward declarations in | |
3237 | GNU C analogously to struct and union forward declarations in | |
3238 | standard C). */ | |
3239 | if (have_std_attrs && c_parser_next_token_is_not (parser, CPP_SEMICOLON)) | |
3240 | c_parser_error (parser, "expected %<;%>"); | |
3241 | ret = parser_xref_tag (ident_loc, ENUMERAL_TYPE, ident, have_std_attrs, | |
3242 | std_attrs); | |
27bf414c JM |
3243 | /* In ISO C, enumerated types can be referred to only if already |
3244 | defined. */ | |
3245 | if (pedantic && !COMPLETE_TYPE_P (ret.spec)) | |
c7412148 TT |
3246 | { |
3247 | gcc_assert (ident); | |
c1771a20 | 3248 | pedwarn (enum_loc, OPT_Wpedantic, |
509c9d60 | 3249 | "ISO C forbids forward references to %<enum%> types"); |
c7412148 | 3250 | } |
27bf414c JM |
3251 | return ret; |
3252 | } | |
3253 | ||
31dc71a8 | 3254 | /* Parse a struct or union specifier (C90 6.5.2.1, C99 6.7.2.1, C11 6.7.2.1). |
27bf414c JM |
3255 | |
3256 | struct-or-union-specifier: | |
4e03c3a7 JM |
3257 | struct-or-union attribute-specifier-sequence[opt] gnu-attributes[opt] |
3258 | identifier[opt] { struct-contents } gnu-attributes[opt] | |
3259 | struct-or-union attribute-specifier-sequence[opt] gnu-attributes[opt] | |
3260 | identifier | |
27bf414c JM |
3261 | |
3262 | struct-contents: | |
3263 | struct-declaration-list | |
3264 | ||
3265 | struct-declaration-list: | |
3266 | struct-declaration ; | |
3267 | struct-declaration-list struct-declaration ; | |
3268 | ||
3269 | GNU extensions: | |
3270 | ||
3271 | struct-contents: | |
3272 | empty | |
3273 | struct-declaration | |
3274 | struct-declaration-list struct-declaration | |
3275 | ||
3276 | struct-declaration-list: | |
3277 | struct-declaration-list ; | |
3278 | ; | |
3279 | ||
3280 | (Note that in the syntax here, unlike that in ISO C, the semicolons | |
3281 | are included here rather than in struct-declaration, in order to | |
3282 | describe the syntax with extra semicolons and missing semicolon at | |
3283 | end.) | |
3284 | ||
3285 | Objective-C: | |
3286 | ||
3287 | struct-declaration-list: | |
3288 | @defs ( class-name ) | |
3289 | ||
3290 | (Note this does not include a trailing semicolon, but can be | |
3291 | followed by further declarations, and gets a pedwarn-if-pedantic | |
3292 | when followed by a semicolon.) */ | |
3293 | ||
3294 | static struct c_typespec | |
3295 | c_parser_struct_or_union_specifier (c_parser *parser) | |
3296 | { | |
3297 | struct c_typespec ret; | |
4e03c3a7 JM |
3298 | bool have_std_attrs; |
3299 | tree std_attrs = NULL_TREE; | |
27bf414c JM |
3300 | tree attrs; |
3301 | tree ident = NULL_TREE; | |
24b97832 ILT |
3302 | location_t struct_loc; |
3303 | location_t ident_loc = UNKNOWN_LOCATION; | |
27bf414c JM |
3304 | enum tree_code code; |
3305 | switch (c_parser_peek_token (parser)->keyword) | |
3306 | { | |
3307 | case RID_STRUCT: | |
3308 | code = RECORD_TYPE; | |
3309 | break; | |
3310 | case RID_UNION: | |
3311 | code = UNION_TYPE; | |
3312 | break; | |
3313 | default: | |
3314 | gcc_unreachable (); | |
3315 | } | |
24b97832 | 3316 | struct_loc = c_parser_peek_token (parser)->location; |
27bf414c | 3317 | c_parser_consume_token (parser); |
4e03c3a7 JM |
3318 | have_std_attrs = c_parser_nth_token_starts_std_attributes (parser, 1); |
3319 | if (have_std_attrs) | |
3320 | std_attrs = c_parser_std_attribute_specifier_sequence (parser); | |
783bfe5e | 3321 | attrs = c_parser_gnu_attributes (parser); |
c2255bc4 | 3322 | |
5af28c74 TT |
3323 | /* Set the location in case we create a decl now. */ |
3324 | c_parser_set_source_position_from_token (c_parser_peek_token (parser)); | |
c2255bc4 | 3325 | |
27bf414c JM |
3326 | if (c_parser_next_token_is (parser, CPP_NAME)) |
3327 | { | |
3328 | ident = c_parser_peek_token (parser)->value; | |
24b97832 ILT |
3329 | ident_loc = c_parser_peek_token (parser)->location; |
3330 | struct_loc = ident_loc; | |
27bf414c JM |
3331 | c_parser_consume_token (parser); |
3332 | } | |
3333 | if (c_parser_next_token_is (parser, CPP_OPEN_BRACE)) | |
3334 | { | |
3335 | /* Parse a struct or union definition. Start the scope of the | |
3336 | tag before parsing components. */ | |
99b1c316 | 3337 | class c_struct_parse_info *struct_info; |
dc491a25 | 3338 | tree type = start_struct (struct_loc, code, ident, &struct_info); |
27bf414c JM |
3339 | tree postfix_attrs; |
3340 | /* We chain the components in reverse order, then put them in | |
3341 | forward order at the end. Each struct-declaration may | |
3342 | declare multiple components (comma-separated), so we must use | |
3343 | chainon to join them, although when parsing each | |
3344 | struct-declaration we can use TREE_CHAIN directly. | |
3345 | ||
3346 | The theory behind all this is that there will be more | |
3347 | semicolon separated fields than comma separated fields, and | |
3348 | so we'll be minimizing the number of node traversals required | |
3349 | by chainon. */ | |
575bfb00 LC |
3350 | tree contents; |
3351 | timevar_push (TV_PARSE_STRUCT); | |
3352 | contents = NULL_TREE; | |
27bf414c JM |
3353 | c_parser_consume_token (parser); |
3354 | /* Handle the Objective-C @defs construct, | |
3355 | e.g. foo(sizeof(struct{ @defs(ClassName) }));. */ | |
3356 | if (c_parser_next_token_is_keyword (parser, RID_AT_DEFS)) | |
3357 | { | |
3358 | tree name; | |
3359 | gcc_assert (c_dialect_objc ()); | |
3360 | c_parser_consume_token (parser); | |
32129a17 DM |
3361 | matching_parens parens; |
3362 | if (!parens.require_open (parser)) | |
27bf414c JM |
3363 | goto end_at_defs; |
3364 | if (c_parser_next_token_is (parser, CPP_NAME) | |
3365 | && c_parser_peek_token (parser)->id_kind == C_ID_CLASSNAME) | |
3366 | { | |
3367 | name = c_parser_peek_token (parser)->value; | |
3368 | c_parser_consume_token (parser); | |
3369 | } | |
3370 | else | |
3371 | { | |
3372 | c_parser_error (parser, "expected class name"); | |
3373 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, NULL); | |
3374 | goto end_at_defs; | |
3375 | } | |
32129a17 | 3376 | parens.skip_until_found_close (parser); |
27bf414c JM |
3377 | contents = nreverse (objc_get_class_ivars (name)); |
3378 | } | |
3379 | end_at_defs: | |
3380 | /* Parse the struct-declarations and semicolons. Problems with | |
3381 | semicolons are diagnosed here; empty structures are diagnosed | |
3382 | elsewhere. */ | |
3383 | while (true) | |
3384 | { | |
3385 | tree decls; | |
3386 | /* Parse any stray semicolon. */ | |
3387 | if (c_parser_next_token_is (parser, CPP_SEMICOLON)) | |
3388 | { | |
1c4ea66f DM |
3389 | location_t semicolon_loc |
3390 | = c_parser_peek_token (parser)->location; | |
3391 | gcc_rich_location richloc (semicolon_loc); | |
3392 | richloc.add_fixit_remove (); | |
64a5912c DM |
3393 | pedwarn (&richloc, OPT_Wpedantic, |
3394 | "extra semicolon in struct or union specified"); | |
27bf414c JM |
3395 | c_parser_consume_token (parser); |
3396 | continue; | |
3397 | } | |
3398 | /* Stop if at the end of the struct or union contents. */ | |
3399 | if (c_parser_next_token_is (parser, CPP_CLOSE_BRACE)) | |
3400 | { | |
3401 | c_parser_consume_token (parser); | |
3402 | break; | |
3403 | } | |
bc4071dd RH |
3404 | /* Accept #pragmas at struct scope. */ |
3405 | if (c_parser_next_token_is (parser, CPP_PRAGMA)) | |
3406 | { | |
dda1bf61 | 3407 | c_parser_pragma (parser, pragma_struct, NULL); |
bc4071dd RH |
3408 | continue; |
3409 | } | |
27bf414c JM |
3410 | /* Parse some comma-separated declarations, but not the |
3411 | trailing semicolon if any. */ | |
3412 | decls = c_parser_struct_declaration (parser); | |
3413 | contents = chainon (decls, contents); | |
3414 | /* If no semicolon follows, either we have a parse error or | |
3415 | are at the end of the struct or union and should | |
3416 | pedwarn. */ | |
3417 | if (c_parser_next_token_is (parser, CPP_SEMICOLON)) | |
3418 | c_parser_consume_token (parser); | |
3419 | else | |
3420 | { | |
3421 | if (c_parser_next_token_is (parser, CPP_CLOSE_BRACE)) | |
b8698a0f | 3422 | pedwarn (c_parser_peek_token (parser)->location, 0, |
509c9d60 | 3423 | "no semicolon at end of struct or union"); |
f725e721 PB |
3424 | else if (parser->error |
3425 | || !c_parser_next_token_starts_declspecs (parser)) | |
27bf414c JM |
3426 | { |
3427 | c_parser_error (parser, "expected %<;%>"); | |
3428 | c_parser_skip_until_found (parser, CPP_CLOSE_BRACE, NULL); | |
3429 | break; | |
3430 | } | |
f725e721 PB |
3431 | |
3432 | /* If we come here, we have already emitted an error | |
3433 | for an expected `;', identifier or `(', and we also | |
3434 | recovered already. Go on with the next field. */ | |
27bf414c JM |
3435 | } |
3436 | } | |
783bfe5e | 3437 | postfix_attrs = c_parser_gnu_attributes (parser); |
c2255bc4 | 3438 | ret.spec = finish_struct (struct_loc, type, nreverse (contents), |
4e03c3a7 JM |
3439 | chainon (std_attrs, |
3440 | chainon (attrs, postfix_attrs)), | |
3441 | struct_info); | |
27bf414c | 3442 | ret.kind = ctsk_tagdef; |
928c19bb JM |
3443 | ret.expr = NULL_TREE; |
3444 | ret.expr_const_operands = true; | |
575bfb00 | 3445 | timevar_pop (TV_PARSE_STRUCT); |
27bf414c JM |
3446 | return ret; |
3447 | } | |
3448 | else if (!ident) | |
3449 | { | |
3450 | c_parser_error (parser, "expected %<{%>"); | |
3451 | ret.spec = error_mark_node; | |
3452 | ret.kind = ctsk_tagref; | |
928c19bb JM |
3453 | ret.expr = NULL_TREE; |
3454 | ret.expr_const_operands = true; | |
67c2939d | 3455 | return ret; |
27bf414c | 3456 | } |
4e03c3a7 JM |
3457 | /* Attributes may only appear when the members are defined or in |
3458 | certain forward declarations. */ | |
3459 | if (have_std_attrs && c_parser_next_token_is_not (parser, CPP_SEMICOLON)) | |
3460 | c_parser_error (parser, "expected %<;%>"); | |
3461 | /* ??? Existing practice is that GNU attributes are ignored after | |
3462 | the struct or union keyword when not defining the members. */ | |
3463 | ret = parser_xref_tag (ident_loc, code, ident, have_std_attrs, std_attrs); | |
27bf414c JM |
3464 | return ret; |
3465 | } | |
3466 | ||
31dc71a8 MP |
3467 | /* Parse a struct-declaration (C90 6.5.2.1, C99 6.7.2.1, C11 6.7.2.1), |
3468 | *without* the trailing semicolon. | |
27bf414c JM |
3469 | |
3470 | struct-declaration: | |
4e03c3a7 JM |
3471 | attribute-specifier-sequence[opt] specifier-qualifier-list |
3472 | attribute-specifier-sequence[opt] struct-declarator-list | |
32912286 | 3473 | static_assert-declaration-no-semi |
27bf414c JM |
3474 | |
3475 | specifier-qualifier-list: | |
3476 | type-specifier specifier-qualifier-list[opt] | |
3477 | type-qualifier specifier-qualifier-list[opt] | |
4b2b493f | 3478 | alignment-specifier specifier-qualifier-list[opt] |
783bfe5e | 3479 | gnu-attributes specifier-qualifier-list[opt] |
27bf414c JM |
3480 | |
3481 | struct-declarator-list: | |
3482 | struct-declarator | |
783bfe5e | 3483 | struct-declarator-list , gnu-attributes[opt] struct-declarator |
27bf414c JM |
3484 | |
3485 | struct-declarator: | |
783bfe5e JM |
3486 | declarator gnu-attributes[opt] |
3487 | declarator[opt] : constant-expression gnu-attributes[opt] | |
27bf414c JM |
3488 | |
3489 | GNU extensions: | |
3490 | ||
3491 | struct-declaration: | |
3492 | __extension__ struct-declaration | |
3493 | specifier-qualifier-list | |
3494 | ||
3495 | Unlike the ISO C syntax, semicolons are handled elsewhere. The use | |
783bfe5e | 3496 | of gnu-attributes where shown is a GNU extension. In GNU C, we accept |
27bf414c JM |
3497 | any expression without commas in the syntax (assignment |
3498 | expressions, not just conditional expressions); assignment | |
3499 | expressions will be diagnosed as non-constant. */ | |
3500 | ||
3501 | static tree | |
3502 | c_parser_struct_declaration (c_parser *parser) | |
3503 | { | |
3504 | struct c_declspecs *specs; | |
3505 | tree prefix_attrs; | |
3506 | tree all_prefix_attrs; | |
3507 | tree decls; | |
c7412148 | 3508 | location_t decl_loc; |
27bf414c JM |
3509 | if (c_parser_next_token_is_keyword (parser, RID_EXTENSION)) |
3510 | { | |
3511 | int ext; | |
3512 | tree decl; | |
3513 | ext = disable_extension_diagnostics (); | |
3514 | c_parser_consume_token (parser); | |
3515 | decl = c_parser_struct_declaration (parser); | |
3516 | restore_extension_diagnostics (ext); | |
3517 | return decl; | |
3518 | } | |
32912286 JM |
3519 | if (c_parser_next_token_is_keyword (parser, RID_STATIC_ASSERT)) |
3520 | { | |
3521 | c_parser_static_assert_declaration_no_semi (parser); | |
3522 | return NULL_TREE; | |
3523 | } | |
27bf414c | 3524 | specs = build_null_declspecs (); |
c7412148 | 3525 | decl_loc = c_parser_peek_token (parser)->location; |
f28aa681 MP |
3526 | /* Strictly by the standard, we shouldn't allow _Alignas here, |
3527 | but it appears to have been intended to allow it there, so | |
3528 | we're keeping it as it is until WG14 reaches a conclusion | |
3529 | of N1731. | |
3530 | <http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1731.pdf> */ | |
568a31f2 | 3531 | c_parser_declspecs (parser, specs, false, true, true, |
4e03c3a7 | 3532 | true, false, true, true, cla_nonabstract_decl); |
27bf414c | 3533 | if (parser->error) |
67c2939d | 3534 | return NULL_TREE; |
27bf414c JM |
3535 | if (!specs->declspecs_seen_p) |
3536 | { | |
3537 | c_parser_error (parser, "expected specifier-qualifier-list"); | |
3538 | return NULL_TREE; | |
3539 | } | |
3540 | finish_declspecs (specs); | |
b8cbdff5 JM |
3541 | if (c_parser_next_token_is (parser, CPP_SEMICOLON) |
3542 | || c_parser_next_token_is (parser, CPP_CLOSE_BRACE)) | |
27bf414c JM |
3543 | { |
3544 | tree ret; | |
9e5b2115 | 3545 | if (specs->typespec_kind == ctsk_none) |
27bf414c | 3546 | { |
c1771a20 | 3547 | pedwarn (decl_loc, OPT_Wpedantic, |
509c9d60 | 3548 | "ISO C forbids member declarations with no members"); |
27bf414c JM |
3549 | shadow_tag_warned (specs, pedantic); |
3550 | ret = NULL_TREE; | |
3551 | } | |
3552 | else | |
3553 | { | |
3554 | /* Support for unnamed structs or unions as members of | |
3555 | structs or unions (which is [a] useful and [b] supports | |
3556 | MS P-SDK). */ | |
b9baeecd | 3557 | tree attrs = NULL; |
3d10ed6c AH |
3558 | |
3559 | ret = grokfield (c_parser_peek_token (parser)->location, | |
3560 | build_id_declarator (NULL_TREE), specs, | |
b9baeecd | 3561 | NULL_TREE, &attrs); |
0ad7e054 RS |
3562 | if (ret) |
3563 | decl_attributes (&ret, attrs, 0); | |
27bf414c JM |
3564 | } |
3565 | return ret; | |
3566 | } | |
f725e721 PB |
3567 | |
3568 | /* Provide better error recovery. Note that a type name here is valid, | |
3569 | and will be treated as a field name. */ | |
3570 | if (specs->typespec_kind == ctsk_tagdef | |
3571 | && TREE_CODE (specs->type) != ENUMERAL_TYPE | |
3572 | && c_parser_next_token_starts_declspecs (parser) | |
3573 | && !c_parser_next_token_is (parser, CPP_NAME)) | |
3574 | { | |
3575 | c_parser_error (parser, "expected %<;%>, identifier or %<(%>"); | |
3576 | parser->error = false; | |
3577 | return NULL_TREE; | |
3578 | } | |
3579 | ||
27bf414c JM |
3580 | pending_xref_error (); |
3581 | prefix_attrs = specs->attrs; | |
3582 | all_prefix_attrs = prefix_attrs; | |
3583 | specs->attrs = NULL_TREE; | |
3584 | decls = NULL_TREE; | |
3585 | while (true) | |
3586 | { | |
3587 | /* Declaring one or more declarators or un-named bit-fields. */ | |
3588 | struct c_declarator *declarator; | |
3589 | bool dummy = false; | |
3590 | if (c_parser_next_token_is (parser, CPP_COLON)) | |
3591 | declarator = build_id_declarator (NULL_TREE); | |
3592 | else | |
9e5b2115 PB |
3593 | declarator = c_parser_declarator (parser, |
3594 | specs->typespec_kind != ctsk_none, | |
27bf414c JM |
3595 | C_DTR_NORMAL, &dummy); |
3596 | if (declarator == NULL) | |
3597 | { | |
3598 | c_parser_skip_to_end_of_block_or_statement (parser); | |
3599 | break; | |
3600 | } | |
3601 | if (c_parser_next_token_is (parser, CPP_COLON) | |
3602 | || c_parser_next_token_is (parser, CPP_COMMA) | |
3603 | || c_parser_next_token_is (parser, CPP_SEMICOLON) | |
3604 | || c_parser_next_token_is (parser, CPP_CLOSE_BRACE) | |
3605 | || c_parser_next_token_is_keyword (parser, RID_ATTRIBUTE)) | |
3606 | { | |
3607 | tree postfix_attrs = NULL_TREE; | |
3608 | tree width = NULL_TREE; | |
3609 | tree d; | |
3610 | if (c_parser_next_token_is (parser, CPP_COLON)) | |
3611 | { | |
3612 | c_parser_consume_token (parser); | |
3613 | width = c_parser_expr_no_commas (parser, NULL).value; | |
3614 | } | |
3615 | if (c_parser_next_token_is_keyword (parser, RID_ATTRIBUTE)) | |
783bfe5e | 3616 | postfix_attrs = c_parser_gnu_attributes (parser); |
3d10ed6c AH |
3617 | d = grokfield (c_parser_peek_token (parser)->location, |
3618 | declarator, specs, width, &all_prefix_attrs); | |
27bf414c JM |
3619 | decl_attributes (&d, chainon (postfix_attrs, |
3620 | all_prefix_attrs), 0); | |
910ad8de | 3621 | DECL_CHAIN (d) = decls; |
27bf414c JM |
3622 | decls = d; |
3623 | if (c_parser_next_token_is_keyword (parser, RID_ATTRIBUTE)) | |
783bfe5e | 3624 | all_prefix_attrs = chainon (c_parser_gnu_attributes (parser), |
27bf414c JM |
3625 | prefix_attrs); |
3626 | else | |
3627 | all_prefix_attrs = prefix_attrs; | |
3628 | if (c_parser_next_token_is (parser, CPP_COMMA)) | |
3629 | c_parser_consume_token (parser); | |
3630 | else if (c_parser_next_token_is (parser, CPP_SEMICOLON) | |
3631 | || c_parser_next_token_is (parser, CPP_CLOSE_BRACE)) | |
3632 | { | |
3633 | /* Semicolon consumed in caller. */ | |
3634 | break; | |
3635 | } | |
3636 | else | |
3637 | { | |
3638 | c_parser_error (parser, "expected %<,%>, %<;%> or %<}%>"); | |
3639 | break; | |
3640 | } | |
3641 | } | |
3642 | else | |
3643 | { | |
3644 | c_parser_error (parser, | |
3645 | "expected %<:%>, %<,%>, %<;%>, %<}%> or " | |
3646 | "%<__attribute__%>"); | |
3647 | break; | |
3648 | } | |
3649 | } | |
3650 | return decls; | |
3651 | } | |
3652 | ||
3653 | /* Parse a typeof specifier (a GNU extension). | |
3654 | ||
3655 | typeof-specifier: | |
3656 | typeof ( expression ) | |
3657 | typeof ( type-name ) | |
3658 | */ | |
3659 | ||
3660 | static struct c_typespec | |
3661 | c_parser_typeof_specifier (c_parser *parser) | |
3662 | { | |
3663 | struct c_typespec ret; | |
3664 | ret.kind = ctsk_typeof; | |
3665 | ret.spec = error_mark_node; | |
928c19bb JM |
3666 | ret.expr = NULL_TREE; |
3667 | ret.expr_const_operands = true; | |
27bf414c JM |
3668 | gcc_assert (c_parser_next_token_is_keyword (parser, RID_TYPEOF)); |
3669 | c_parser_consume_token (parser); | |
7d882b83 | 3670 | c_inhibit_evaluation_warnings++; |
27bf414c | 3671 | in_typeof++; |
32129a17 DM |
3672 | matching_parens parens; |
3673 | if (!parens.require_open (parser)) | |
27bf414c | 3674 | { |
7d882b83 | 3675 | c_inhibit_evaluation_warnings--; |
27bf414c JM |
3676 | in_typeof--; |
3677 | return ret; | |
3678 | } | |
29ce73cb | 3679 | if (c_parser_next_tokens_start_typename (parser, cla_prefer_id)) |
27bf414c JM |
3680 | { |
3681 | struct c_type_name *type = c_parser_type_name (parser); | |
7d882b83 | 3682 | c_inhibit_evaluation_warnings--; |
27bf414c JM |
3683 | in_typeof--; |
3684 | if (type != NULL) | |
3685 | { | |
928c19bb | 3686 | ret.spec = groktypename (type, &ret.expr, &ret.expr_const_operands); |
27bf414c JM |
3687 | pop_maybe_used (variably_modified_type_p (ret.spec, NULL_TREE)); |
3688 | } | |
3689 | } | |
3690 | else | |
3691 | { | |
52ffd86e | 3692 | bool was_vm; |
c7412148 | 3693 | location_t here = c_parser_peek_token (parser)->location; |
27bf414c | 3694 | struct c_expr expr = c_parser_expression (parser); |
7d882b83 | 3695 | c_inhibit_evaluation_warnings--; |
27bf414c JM |
3696 | in_typeof--; |
3697 | if (TREE_CODE (expr.value) == COMPONENT_REF | |
3698 | && DECL_C_BIT_FIELD (TREE_OPERAND (expr.value, 1))) | |
3ba09659 | 3699 | error_at (here, "%<typeof%> applied to a bit-field"); |
ebfbbdc5 | 3700 | mark_exp_read (expr.value); |
27bf414c | 3701 | ret.spec = TREE_TYPE (expr.value); |
52ffd86e | 3702 | was_vm = variably_modified_type_p (ret.spec, NULL_TREE); |
928c19bb JM |
3703 | /* This is returned with the type so that when the type is |
3704 | evaluated, this can be evaluated. */ | |
3705 | if (was_vm) | |
3706 | ret.expr = c_fully_fold (expr.value, false, &ret.expr_const_operands); | |
52ffd86e | 3707 | pop_maybe_used (was_vm); |
9698b078 SH |
3708 | /* For use in macros such as those in <stdatomic.h>, remove all |
3709 | qualifiers from atomic types. (const can be an issue for more macros | |
3710 | using typeof than just the <stdatomic.h> ones.) */ | |
267bac10 | 3711 | if (ret.spec != error_mark_node && TYPE_ATOMIC (ret.spec)) |
9698b078 | 3712 | ret.spec = c_build_qualified_type (ret.spec, TYPE_UNQUALIFIED); |
27bf414c | 3713 | } |
32129a17 | 3714 | parens.skip_until_found_close (parser); |
27bf414c JM |
3715 | return ret; |
3716 | } | |
3717 | ||
d19fa6b5 JM |
3718 | /* Parse an alignment-specifier. |
3719 | ||
48b0b196 | 3720 | C11 6.7.5: |
d19fa6b5 JM |
3721 | |
3722 | alignment-specifier: | |
3723 | _Alignas ( type-name ) | |
3724 | _Alignas ( constant-expression ) | |
3725 | */ | |
3726 | ||
3727 | static tree | |
3728 | c_parser_alignas_specifier (c_parser * parser) | |
3729 | { | |
3730 | tree ret = error_mark_node; | |
3731 | location_t loc = c_parser_peek_token (parser)->location; | |
3732 | gcc_assert (c_parser_next_token_is_keyword (parser, RID_ALIGNAS)); | |
3733 | c_parser_consume_token (parser); | |
35aff4fb MP |
3734 | if (flag_isoc99) |
3735 | pedwarn_c99 (loc, OPT_Wpedantic, | |
d19fa6b5 | 3736 | "ISO C99 does not support %<_Alignas%>"); |
35aff4fb MP |
3737 | else |
3738 | pedwarn_c99 (loc, OPT_Wpedantic, | |
d19fa6b5 | 3739 | "ISO C90 does not support %<_Alignas%>"); |
32129a17 DM |
3740 | matching_parens parens; |
3741 | if (!parens.require_open (parser)) | |
d19fa6b5 JM |
3742 | return ret; |
3743 | if (c_parser_next_tokens_start_typename (parser, cla_prefer_id)) | |
3744 | { | |
3745 | struct c_type_name *type = c_parser_type_name (parser); | |
3746 | if (type != NULL) | |
296674db JM |
3747 | ret = c_sizeof_or_alignof_type (loc, groktypename (type, NULL, NULL), |
3748 | false, true, 1); | |
d19fa6b5 JM |
3749 | } |
3750 | else | |
3751 | ret = c_parser_expr_no_commas (parser, NULL).value; | |
32129a17 | 3752 | parens.skip_until_found_close (parser); |
d19fa6b5 JM |
3753 | return ret; |
3754 | } | |
3755 | ||
27bf414c | 3756 | /* Parse a declarator, possibly an abstract declarator (C90 6.5.4, |
31dc71a8 MP |
3757 | 6.5.5, C99 6.7.5, 6.7.6, C11 6.7.6, 6.7.7). If TYPE_SEEN_P then |
3758 | a typedef name may be redeclared; otherwise it may not. KIND | |
3759 | indicates which kind of declarator is wanted. Returns a valid | |
3760 | declarator except in the case of a syntax error in which case NULL is | |
3761 | returned. *SEEN_ID is set to true if an identifier being declared is | |
3762 | seen; this is used to diagnose bad forms of abstract array declarators | |
3763 | and to determine whether an identifier list is syntactically permitted. | |
27bf414c JM |
3764 | |
3765 | declarator: | |
3766 | pointer[opt] direct-declarator | |
3767 | ||
3768 | direct-declarator: | |
3769 | identifier | |
783bfe5e | 3770 | ( gnu-attributes[opt] declarator ) |
27bf414c JM |
3771 | direct-declarator array-declarator |
3772 | direct-declarator ( parameter-type-list ) | |
3773 | direct-declarator ( identifier-list[opt] ) | |
3774 | ||
3775 | pointer: | |
3776 | * type-qualifier-list[opt] | |
3777 | * type-qualifier-list[opt] pointer | |
3778 | ||
3779 | type-qualifier-list: | |
3780 | type-qualifier | |
783bfe5e | 3781 | gnu-attributes |
27bf414c | 3782 | type-qualifier-list type-qualifier |
783bfe5e | 3783 | type-qualifier-list gnu-attributes |
27bf414c | 3784 | |
568a31f2 MP |
3785 | array-declarator: |
3786 | [ type-qualifier-list[opt] assignment-expression[opt] ] | |
3787 | [ static type-qualifier-list[opt] assignment-expression ] | |
3788 | [ type-qualifier-list static assignment-expression ] | |
3789 | [ type-qualifier-list[opt] * ] | |
3790 | ||
27bf414c JM |
3791 | parameter-type-list: |
3792 | parameter-list | |
3793 | parameter-list , ... | |
3794 | ||
3795 | parameter-list: | |
3796 | parameter-declaration | |
3797 | parameter-list , parameter-declaration | |
3798 | ||
3799 | parameter-declaration: | |
783bfe5e JM |
3800 | declaration-specifiers declarator gnu-attributes[opt] |
3801 | declaration-specifiers abstract-declarator[opt] gnu-attributes[opt] | |
27bf414c JM |
3802 | |
3803 | identifier-list: | |
3804 | identifier | |
3805 | identifier-list , identifier | |
3806 | ||
3807 | abstract-declarator: | |
3808 | pointer | |
3809 | pointer[opt] direct-abstract-declarator | |
3810 | ||
3811 | direct-abstract-declarator: | |
783bfe5e | 3812 | ( gnu-attributes[opt] abstract-declarator ) |
27bf414c JM |
3813 | direct-abstract-declarator[opt] array-declarator |
3814 | direct-abstract-declarator[opt] ( parameter-type-list[opt] ) | |
3815 | ||
3816 | GNU extensions: | |
3817 | ||
3818 | direct-declarator: | |
3819 | direct-declarator ( parameter-forward-declarations | |
3820 | parameter-type-list[opt] ) | |
3821 | ||
3822 | direct-abstract-declarator: | |
c22cacf3 | 3823 | direct-abstract-declarator[opt] ( parameter-forward-declarations |
27bf414c JM |
3824 | parameter-type-list[opt] ) |
3825 | ||
3826 | parameter-forward-declarations: | |
3827 | parameter-list ; | |
3828 | parameter-forward-declarations parameter-list ; | |
3829 | ||
783bfe5e | 3830 | The uses of gnu-attributes shown above are GNU extensions. |
27bf414c JM |
3831 | |
3832 | Some forms of array declarator are not included in C99 in the | |
3833 | syntax for abstract declarators; these are disallowed elsewhere. | |
3834 | This may be a defect (DR#289). | |
3835 | ||
3836 | This function also accepts an omitted abstract declarator as being | |
3837 | an abstract declarator, although not part of the formal syntax. */ | |
3838 | ||
1ee62b92 | 3839 | struct c_declarator * |
27bf414c JM |
3840 | c_parser_declarator (c_parser *parser, bool type_seen_p, c_dtr_syn kind, |
3841 | bool *seen_id) | |
3842 | { | |
3843 | /* Parse any initial pointer part. */ | |
3844 | if (c_parser_next_token_is (parser, CPP_MULT)) | |
3845 | { | |
3846 | struct c_declspecs *quals_attrs = build_null_declspecs (); | |
3847 | struct c_declarator *inner; | |
3848 | c_parser_consume_token (parser); | |
568a31f2 | 3849 | c_parser_declspecs (parser, quals_attrs, false, false, true, |
4e03c3a7 | 3850 | false, false, true, false, cla_prefer_id); |
27bf414c JM |
3851 | inner = c_parser_declarator (parser, type_seen_p, kind, seen_id); |
3852 | if (inner == NULL) | |
3853 | return NULL; | |
3854 | else | |
3855 | return make_pointer_declarator (quals_attrs, inner); | |
3856 | } | |
3857 | /* Now we have a direct declarator, direct abstract declarator or | |
3858 | nothing (which counts as a direct abstract declarator here). */ | |
3859 | return c_parser_direct_declarator (parser, type_seen_p, kind, seen_id); | |
3860 | } | |
3861 | ||
3862 | /* Parse a direct declarator or direct abstract declarator; arguments | |
3863 | as c_parser_declarator. */ | |
3864 | ||
3865 | static struct c_declarator * | |
3866 | c_parser_direct_declarator (c_parser *parser, bool type_seen_p, c_dtr_syn kind, | |
3867 | bool *seen_id) | |
3868 | { | |
3869 | /* The direct declarator must start with an identifier (possibly | |
3870 | omitted) or a parenthesized declarator (possibly abstract). In | |
3871 | an ordinary declarator, initial parentheses must start a | |
3872 | parenthesized declarator. In an abstract declarator or parameter | |
3873 | declarator, they could start a parenthesized declarator or a | |
3874 | parameter list. To tell which, the open parenthesis and any | |
4e03c3a7 JM |
3875 | following gnu-attributes must be read. If a declaration |
3876 | specifier or standard attributes follow, then it is a parameter | |
3877 | list; if the specifier is a typedef name, there might be an | |
3878 | ambiguity about redeclaring it, which is resolved in the | |
3879 | direction of treating it as a typedef name. If a close | |
3880 | parenthesis follows, it is also an empty parameter list, as the | |
3881 | syntax does not permit empty abstract declarators. Otherwise, it | |
3882 | is a parenthesized declarator (in which case the analysis may be | |
3883 | repeated inside it, recursively). | |
27bf414c JM |
3884 | |
3885 | ??? There is an ambiguity in a parameter declaration "int | |
3886 | (__attribute__((foo)) x)", where x is not a typedef name: it | |
3887 | could be an abstract declarator for a function, or declare x with | |
3888 | parentheses. The proper resolution of this ambiguity needs | |
3889 | documenting. At present we follow an accident of the old | |
3890 | parser's implementation, whereby the first parameter must have | |
783bfe5e | 3891 | some declaration specifiers other than just gnu-attributes. Thus as |
0fa2e4df | 3892 | a parameter declaration it is treated as a parenthesized |
27bf414c JM |
3893 | parameter named x, and as an abstract declarator it is |
3894 | rejected. | |
3895 | ||
783bfe5e | 3896 | ??? Also following the old parser, gnu-attributes inside an empty |
27bf414c JM |
3897 | parameter list are ignored, making it a list not yielding a |
3898 | prototype, rather than giving an error or making it have one | |
3899 | parameter with implicit type int. | |
3900 | ||
3901 | ??? Also following the old parser, typedef names may be | |
3902 | redeclared in declarators, but not Objective-C class names. */ | |
3903 | ||
3904 | if (kind != C_DTR_ABSTRACT | |
3905 | && c_parser_next_token_is (parser, CPP_NAME) | |
3906 | && ((type_seen_p | |
a6341d57 NP |
3907 | && (c_parser_peek_token (parser)->id_kind == C_ID_TYPENAME |
3908 | || c_parser_peek_token (parser)->id_kind == C_ID_CLASSNAME)) | |
27bf414c JM |
3909 | || c_parser_peek_token (parser)->id_kind == C_ID_ID)) |
3910 | { | |
3911 | struct c_declarator *inner | |
3912 | = build_id_declarator (c_parser_peek_token (parser)->value); | |
3913 | *seen_id = true; | |
6037d88d | 3914 | inner->id_loc = c_parser_peek_token (parser)->location; |
27bf414c | 3915 | c_parser_consume_token (parser); |
4e03c3a7 | 3916 | if (c_parser_nth_token_starts_std_attributes (parser, 1)) |
1723e1be | 3917 | inner->u.id.attrs = c_parser_std_attribute_specifier_sequence (parser); |
27bf414c JM |
3918 | return c_parser_direct_declarator_inner (parser, *seen_id, inner); |
3919 | } | |
3920 | ||
3921 | if (kind != C_DTR_NORMAL | |
4e03c3a7 JM |
3922 | && c_parser_next_token_is (parser, CPP_OPEN_SQUARE) |
3923 | && !c_parser_nth_token_starts_std_attributes (parser, 1)) | |
27bf414c JM |
3924 | { |
3925 | struct c_declarator *inner = build_id_declarator (NULL_TREE); | |
1f40cff3 | 3926 | inner->id_loc = c_parser_peek_token (parser)->location; |
27bf414c JM |
3927 | return c_parser_direct_declarator_inner (parser, *seen_id, inner); |
3928 | } | |
3929 | ||
3930 | /* Either we are at the end of an abstract declarator, or we have | |
3931 | parentheses. */ | |
3932 | ||
3933 | if (c_parser_next_token_is (parser, CPP_OPEN_PAREN)) | |
3934 | { | |
3935 | tree attrs; | |
3936 | struct c_declarator *inner; | |
3937 | c_parser_consume_token (parser); | |
4e03c3a7 JM |
3938 | bool have_gnu_attrs = c_parser_next_token_is_keyword (parser, |
3939 | RID_ATTRIBUTE); | |
783bfe5e | 3940 | attrs = c_parser_gnu_attributes (parser); |
27bf414c JM |
3941 | if (kind != C_DTR_NORMAL |
3942 | && (c_parser_next_token_starts_declspecs (parser) | |
4e03c3a7 JM |
3943 | || (!have_gnu_attrs |
3944 | && c_parser_nth_token_starts_std_attributes (parser, 1)) | |
27bf414c JM |
3945 | || c_parser_next_token_is (parser, CPP_CLOSE_PAREN))) |
3946 | { | |
3947 | struct c_arg_info *args | |
3948 | = c_parser_parms_declarator (parser, kind == C_DTR_NORMAL, | |
4e03c3a7 | 3949 | attrs, have_gnu_attrs); |
27bf414c JM |
3950 | if (args == NULL) |
3951 | return NULL; | |
3952 | else | |
3953 | { | |
1723e1be | 3954 | inner = build_id_declarator (NULL_TREE); |
4e03c3a7 JM |
3955 | if (!(args->types |
3956 | && args->types != error_mark_node | |
3957 | && TREE_CODE (TREE_VALUE (args->types)) == IDENTIFIER_NODE) | |
3958 | && c_parser_nth_token_starts_std_attributes (parser, 1)) | |
3959 | { | |
3960 | tree std_attrs | |
3961 | = c_parser_std_attribute_specifier_sequence (parser); | |
3962 | if (std_attrs) | |
3963 | inner = build_attrs_declarator (std_attrs, inner); | |
3964 | } | |
1723e1be | 3965 | inner = build_function_declarator (args, inner); |
27bf414c JM |
3966 | return c_parser_direct_declarator_inner (parser, *seen_id, |
3967 | inner); | |
3968 | } | |
3969 | } | |
3970 | /* A parenthesized declarator. */ | |
3971 | inner = c_parser_declarator (parser, type_seen_p, kind, seen_id); | |
3972 | if (inner != NULL && attrs != NULL) | |
3973 | inner = build_attrs_declarator (attrs, inner); | |
3974 | if (c_parser_next_token_is (parser, CPP_CLOSE_PAREN)) | |
3975 | { | |
3976 | c_parser_consume_token (parser); | |
3977 | if (inner == NULL) | |
3978 | return NULL; | |
3979 | else | |
3980 | return c_parser_direct_declarator_inner (parser, *seen_id, inner); | |
3981 | } | |
3982 | else | |
3983 | { | |
3984 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, | |
3985 | "expected %<)%>"); | |
3986 | return NULL; | |
3987 | } | |
3988 | } | |
3989 | else | |
3990 | { | |
3991 | if (kind == C_DTR_NORMAL) | |
3992 | { | |
3993 | c_parser_error (parser, "expected identifier or %<(%>"); | |
3994 | return NULL; | |
3995 | } | |
3996 | else | |
3997 | return build_id_declarator (NULL_TREE); | |
3998 | } | |
3999 | } | |
4000 | ||
4001 | /* Parse part of a direct declarator or direct abstract declarator, | |
4002 | given that some (in INNER) has already been parsed; ID_PRESENT is | |
4003 | true if an identifier is present, false for an abstract | |
4004 | declarator. */ | |
4005 | ||
4006 | static struct c_declarator * | |
4007 | c_parser_direct_declarator_inner (c_parser *parser, bool id_present, | |
4008 | struct c_declarator *inner) | |
4009 | { | |
4010 | /* Parse a sequence of array declarators and parameter lists. */ | |
4e03c3a7 JM |
4011 | if (c_parser_next_token_is (parser, CPP_OPEN_SQUARE) |
4012 | && !c_parser_nth_token_starts_std_attributes (parser, 1)) | |
27bf414c | 4013 | { |
b8698a0f | 4014 | location_t brace_loc = c_parser_peek_token (parser)->location; |
27bf414c JM |
4015 | struct c_declarator *declarator; |
4016 | struct c_declspecs *quals_attrs = build_null_declspecs (); | |
4017 | bool static_seen; | |
4018 | bool star_seen; | |
267bac10 JM |
4019 | struct c_expr dimen; |
4020 | dimen.value = NULL_TREE; | |
4021 | dimen.original_code = ERROR_MARK; | |
4022 | dimen.original_type = NULL_TREE; | |
27bf414c | 4023 | c_parser_consume_token (parser); |
568a31f2 | 4024 | c_parser_declspecs (parser, quals_attrs, false, false, true, |
4e03c3a7 | 4025 | false, false, false, false, cla_prefer_id); |
27bf414c JM |
4026 | static_seen = c_parser_next_token_is_keyword (parser, RID_STATIC); |
4027 | if (static_seen) | |
4028 | c_parser_consume_token (parser); | |
4029 | if (static_seen && !quals_attrs->declspecs_seen_p) | |
568a31f2 | 4030 | c_parser_declspecs (parser, quals_attrs, false, false, true, |
4e03c3a7 | 4031 | false, false, false, false, cla_prefer_id); |
27bf414c JM |
4032 | if (!quals_attrs->declspecs_seen_p) |
4033 | quals_attrs = NULL; | |
4034 | /* If "static" is present, there must be an array dimension. | |
4035 | Otherwise, there may be a dimension, "*", or no | |
4036 | dimension. */ | |
4037 | if (static_seen) | |
4038 | { | |
4039 | star_seen = false; | |
267bac10 | 4040 | dimen = c_parser_expr_no_commas (parser, NULL); |
27bf414c JM |
4041 | } |
4042 | else | |
4043 | { | |
4044 | if (c_parser_next_token_is (parser, CPP_CLOSE_SQUARE)) | |
4045 | { | |
267bac10 | 4046 | dimen.value = NULL_TREE; |
27bf414c JM |
4047 | star_seen = false; |
4048 | } | |
4049 | else if (c_parser_next_token_is (parser, CPP_MULT)) | |
4050 | { | |
4051 | if (c_parser_peek_2nd_token (parser)->type == CPP_CLOSE_SQUARE) | |
4052 | { | |
267bac10 | 4053 | dimen.value = NULL_TREE; |
27bf414c JM |
4054 | star_seen = true; |
4055 | c_parser_consume_token (parser); | |
4056 | } | |
4057 | else | |
4058 | { | |
4059 | star_seen = false; | |
267bac10 | 4060 | dimen = c_parser_expr_no_commas (parser, NULL); |
27bf414c JM |
4061 | } |
4062 | } | |
4063 | else | |
4064 | { | |
4065 | star_seen = false; | |
267bac10 | 4066 | dimen = c_parser_expr_no_commas (parser, NULL); |
27bf414c JM |
4067 | } |
4068 | } | |
4069 | if (c_parser_next_token_is (parser, CPP_CLOSE_SQUARE)) | |
4070 | c_parser_consume_token (parser); | |
4071 | else | |
4072 | { | |
4073 | c_parser_skip_until_found (parser, CPP_CLOSE_SQUARE, | |
4074 | "expected %<]%>"); | |
4075 | return NULL; | |
4076 | } | |
267bac10 JM |
4077 | if (dimen.value) |
4078 | dimen = convert_lvalue_to_rvalue (brace_loc, dimen, true, true); | |
4079 | declarator = build_array_declarator (brace_loc, dimen.value, quals_attrs, | |
c2255bc4 | 4080 | static_seen, star_seen); |
52ffd86e MS |
4081 | if (declarator == NULL) |
4082 | return NULL; | |
4e03c3a7 JM |
4083 | if (c_parser_nth_token_starts_std_attributes (parser, 1)) |
4084 | { | |
4085 | tree std_attrs | |
4086 | = c_parser_std_attribute_specifier_sequence (parser); | |
4087 | if (std_attrs) | |
4088 | inner = build_attrs_declarator (std_attrs, inner); | |
4089 | } | |
1723e1be | 4090 | inner = set_array_declarator_inner (declarator, inner); |
27bf414c JM |
4091 | return c_parser_direct_declarator_inner (parser, id_present, inner); |
4092 | } | |
4093 | else if (c_parser_next_token_is (parser, CPP_OPEN_PAREN)) | |
4094 | { | |
4095 | tree attrs; | |
4096 | struct c_arg_info *args; | |
4097 | c_parser_consume_token (parser); | |
4e03c3a7 JM |
4098 | bool have_gnu_attrs = c_parser_next_token_is_keyword (parser, |
4099 | RID_ATTRIBUTE); | |
783bfe5e | 4100 | attrs = c_parser_gnu_attributes (parser); |
4e03c3a7 JM |
4101 | args = c_parser_parms_declarator (parser, id_present, attrs, |
4102 | have_gnu_attrs); | |
27bf414c JM |
4103 | if (args == NULL) |
4104 | return NULL; | |
4105 | else | |
4106 | { | |
4e03c3a7 JM |
4107 | if (!(args->types |
4108 | && args->types != error_mark_node | |
4109 | && TREE_CODE (TREE_VALUE (args->types)) == IDENTIFIER_NODE) | |
4110 | && c_parser_nth_token_starts_std_attributes (parser, 1)) | |
4111 | { | |
4112 | tree std_attrs | |
4113 | = c_parser_std_attribute_specifier_sequence (parser); | |
4114 | if (std_attrs) | |
4115 | inner = build_attrs_declarator (std_attrs, inner); | |
4116 | } | |
1723e1be | 4117 | inner = build_function_declarator (args, inner); |
27bf414c JM |
4118 | return c_parser_direct_declarator_inner (parser, id_present, inner); |
4119 | } | |
4120 | } | |
4121 | return inner; | |
4122 | } | |
4123 | ||
4124 | /* Parse a parameter list or identifier list, including the closing | |
4e03c3a7 JM |
4125 | parenthesis but not the opening one. ATTRS are the gnu-attributes |
4126 | at the start of the list. ID_LIST_OK is true if an identifier list | |
4127 | is acceptable; such a list must not have attributes at the start. | |
4128 | HAVE_GNU_ATTRS says whether any gnu-attributes (including empty | |
4129 | attributes) were present (in which case standard attributes cannot | |
4130 | occur). */ | |
27bf414c JM |
4131 | |
4132 | static struct c_arg_info * | |
4e03c3a7 JM |
4133 | c_parser_parms_declarator (c_parser *parser, bool id_list_ok, tree attrs, |
4134 | bool have_gnu_attrs) | |
27bf414c JM |
4135 | { |
4136 | push_scope (); | |
4137 | declare_parm_level (); | |
4138 | /* If the list starts with an identifier, it is an identifier list. | |
4139 | Otherwise, it is either a prototype list or an empty list. */ | |
4140 | if (id_list_ok | |
4141 | && !attrs | |
4142 | && c_parser_next_token_is (parser, CPP_NAME) | |
29ce73cb PB |
4143 | && c_parser_peek_token (parser)->id_kind == C_ID_ID |
4144 | ||
4145 | /* Look ahead to detect typos in type names. */ | |
4146 | && c_parser_peek_2nd_token (parser)->type != CPP_NAME | |
4147 | && c_parser_peek_2nd_token (parser)->type != CPP_MULT | |
4148 | && c_parser_peek_2nd_token (parser)->type != CPP_OPEN_PAREN | |
1a4f11c8 DM |
4149 | && c_parser_peek_2nd_token (parser)->type != CPP_OPEN_SQUARE |
4150 | && c_parser_peek_2nd_token (parser)->type != CPP_KEYWORD) | |
27bf414c | 4151 | { |
7fa3585c | 4152 | tree list = NULL_TREE, *nextp = &list; |
27bf414c JM |
4153 | while (c_parser_next_token_is (parser, CPP_NAME) |
4154 | && c_parser_peek_token (parser)->id_kind == C_ID_ID) | |
4155 | { | |
7fa3585c GK |
4156 | *nextp = build_tree_list (NULL_TREE, |
4157 | c_parser_peek_token (parser)->value); | |
4158 | nextp = & TREE_CHAIN (*nextp); | |
27bf414c JM |
4159 | c_parser_consume_token (parser); |
4160 | if (c_parser_next_token_is_not (parser, CPP_COMMA)) | |
4161 | break; | |
4162 | c_parser_consume_token (parser); | |
4163 | if (c_parser_next_token_is (parser, CPP_CLOSE_PAREN)) | |
4164 | { | |
4165 | c_parser_error (parser, "expected identifier"); | |
4166 | break; | |
4167 | } | |
4168 | } | |
4169 | if (c_parser_next_token_is (parser, CPP_CLOSE_PAREN)) | |
4170 | { | |
b3399d18 | 4171 | struct c_arg_info *ret = build_arg_info (); |
27bf414c | 4172 | ret->types = list; |
27bf414c JM |
4173 | c_parser_consume_token (parser); |
4174 | pop_scope (); | |
4175 | return ret; | |
4176 | } | |
4177 | else | |
4178 | { | |
4179 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, | |
4180 | "expected %<)%>"); | |
4181 | pop_scope (); | |
4182 | return NULL; | |
4183 | } | |
4184 | } | |
4185 | else | |
4186 | { | |
4e03c3a7 JM |
4187 | struct c_arg_info *ret |
4188 | = c_parser_parms_list_declarator (parser, attrs, NULL, have_gnu_attrs); | |
27bf414c JM |
4189 | pop_scope (); |
4190 | return ret; | |
4191 | } | |
4192 | } | |
4193 | ||
4194 | /* Parse a parameter list (possibly empty), including the closing | |
4e03c3a7 JM |
4195 | parenthesis but not the opening one. ATTRS are the gnu-attributes |
4196 | at the start of the list; if HAVE_GNU_ATTRS, there were some such | |
4197 | attributes (possibly empty, in which case ATTRS is NULL_TREE), | |
4198 | which means standard attributes cannot start the list. EXPR is | |
4199 | NULL or an expression that needs to be evaluated for the side | |
4200 | effects of array size expressions in the parameters. */ | |
27bf414c JM |
4201 | |
4202 | static struct c_arg_info * | |
4e03c3a7 JM |
4203 | c_parser_parms_list_declarator (c_parser *parser, tree attrs, tree expr, |
4204 | bool have_gnu_attrs) | |
27bf414c | 4205 | { |
09a1e889 | 4206 | bool bad_parm = false; |
a04a722b | 4207 | |
27bf414c JM |
4208 | /* ??? Following the old parser, forward parameter declarations may |
4209 | use abstract declarators, and if no real parameter declarations | |
4210 | follow the forward declarations then this is not diagnosed. Also | |
4e03c3a7 | 4211 | note as above that gnu-attributes are ignored as the only contents of |
27bf414c JM |
4212 | the parentheses, or as the only contents after forward |
4213 | declarations. */ | |
4214 | if (c_parser_next_token_is (parser, CPP_CLOSE_PAREN)) | |
4215 | { | |
b3399d18 | 4216 | struct c_arg_info *ret = build_arg_info (); |
27bf414c JM |
4217 | c_parser_consume_token (parser); |
4218 | return ret; | |
4219 | } | |
4220 | if (c_parser_next_token_is (parser, CPP_ELLIPSIS)) | |
4221 | { | |
b3399d18 | 4222 | struct c_arg_info *ret = build_arg_info (); |
6637388f TG |
4223 | |
4224 | if (flag_allow_parameterless_variadic_functions) | |
4225 | { | |
4226 | /* F (...) is allowed. */ | |
4227 | ret->types = NULL_TREE; | |
4228 | } | |
4229 | else | |
4230 | { | |
4231 | /* Suppress -Wold-style-definition for this case. */ | |
4232 | ret->types = error_mark_node; | |
4233 | error_at (c_parser_peek_token (parser)->location, | |
4234 | "ISO C requires a named argument before %<...%>"); | |
4235 | } | |
27bf414c JM |
4236 | c_parser_consume_token (parser); |
4237 | if (c_parser_next_token_is (parser, CPP_CLOSE_PAREN)) | |
4238 | { | |
4239 | c_parser_consume_token (parser); | |
4240 | return ret; | |
4241 | } | |
4242 | else | |
4243 | { | |
4244 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, | |
4245 | "expected %<)%>"); | |
4246 | return NULL; | |
4247 | } | |
4248 | } | |
4249 | /* Nonempty list of parameters, either terminated with semicolon | |
4250 | (forward declarations; recurse) or with close parenthesis (normal | |
4251 | function) or with ", ... )" (variadic function). */ | |
4252 | while (true) | |
4253 | { | |
4254 | /* Parse a parameter. */ | |
4e03c3a7 JM |
4255 | struct c_parm *parm = c_parser_parameter_declaration (parser, attrs, |
4256 | have_gnu_attrs); | |
27bf414c | 4257 | attrs = NULL_TREE; |
4e03c3a7 | 4258 | have_gnu_attrs = false; |
09a1e889 SZ |
4259 | if (parm == NULL) |
4260 | bad_parm = true; | |
4261 | else | |
a04a722b | 4262 | push_parm_decl (parm, &expr); |
27bf414c JM |
4263 | if (c_parser_next_token_is (parser, CPP_SEMICOLON)) |
4264 | { | |
4265 | tree new_attrs; | |
4266 | c_parser_consume_token (parser); | |
91d975b8 | 4267 | mark_forward_parm_decls (); |
4e03c3a7 JM |
4268 | bool new_have_gnu_attrs |
4269 | = c_parser_next_token_is_keyword (parser, RID_ATTRIBUTE); | |
783bfe5e | 4270 | new_attrs = c_parser_gnu_attributes (parser); |
4e03c3a7 JM |
4271 | return c_parser_parms_list_declarator (parser, new_attrs, expr, |
4272 | new_have_gnu_attrs); | |
27bf414c JM |
4273 | } |
4274 | if (c_parser_next_token_is (parser, CPP_CLOSE_PAREN)) | |
4275 | { | |
4276 | c_parser_consume_token (parser); | |
09a1e889 | 4277 | if (bad_parm) |
a04a722b | 4278 | return NULL; |
09a1e889 | 4279 | else |
a04a722b | 4280 | return get_parm_info (false, expr); |
27bf414c JM |
4281 | } |
4282 | if (!c_parser_require (parser, CPP_COMMA, | |
62e1c678 DM |
4283 | "expected %<;%>, %<,%> or %<)%>", |
4284 | UNKNOWN_LOCATION, false)) | |
27bf414c JM |
4285 | { |
4286 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, NULL); | |
4287 | return NULL; | |
4288 | } | |
4289 | if (c_parser_next_token_is (parser, CPP_ELLIPSIS)) | |
4290 | { | |
4291 | c_parser_consume_token (parser); | |
4292 | if (c_parser_next_token_is (parser, CPP_CLOSE_PAREN)) | |
4293 | { | |
4294 | c_parser_consume_token (parser); | |
09a1e889 | 4295 | if (bad_parm) |
a04a722b | 4296 | return NULL; |
09a1e889 | 4297 | else |
a04a722b | 4298 | return get_parm_info (true, expr); |
27bf414c JM |
4299 | } |
4300 | else | |
4301 | { | |
4302 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, | |
4303 | "expected %<)%>"); | |
4304 | return NULL; | |
4305 | } | |
4306 | } | |
4307 | } | |
4308 | } | |
4309 | ||
4e03c3a7 JM |
4310 | /* Parse a parameter declaration. ATTRS are the gnu-attributes at the |
4311 | start of the declaration if it is the first parameter; | |
4312 | HAVE_GNU_ATTRS is true if there were any gnu-attributes there (even | |
4313 | empty) there. */ | |
27bf414c JM |
4314 | |
4315 | static struct c_parm * | |
4e03c3a7 JM |
4316 | c_parser_parameter_declaration (c_parser *parser, tree attrs, |
4317 | bool have_gnu_attrs) | |
27bf414c JM |
4318 | { |
4319 | struct c_declspecs *specs; | |
4320 | struct c_declarator *declarator; | |
4321 | tree prefix_attrs; | |
4322 | tree postfix_attrs = NULL_TREE; | |
4323 | bool dummy = false; | |
51a1aacf TG |
4324 | |
4325 | /* Accept #pragmas between parameter declarations. */ | |
4326 | while (c_parser_next_token_is (parser, CPP_PRAGMA)) | |
dda1bf61 | 4327 | c_parser_pragma (parser, pragma_param, NULL); |
51a1aacf | 4328 | |
4e03c3a7 JM |
4329 | if (!c_parser_next_token_starts_declspecs (parser) |
4330 | && !c_parser_nth_token_starts_std_attributes (parser, 1)) | |
27bf414c | 4331 | { |
09a1e889 SZ |
4332 | c_token *token = c_parser_peek_token (parser); |
4333 | if (parser->error) | |
4334 | return NULL; | |
4335 | c_parser_set_source_position_from_token (token); | |
29ce73cb | 4336 | if (c_parser_next_tokens_start_typename (parser, cla_prefer_type)) |
09a1e889 | 4337 | { |
097f82ec | 4338 | auto_diagnostic_group d; |
6c7a259b DM |
4339 | name_hint hint = lookup_name_fuzzy (token->value, |
4340 | FUZZY_LOOKUP_TYPENAME, | |
4341 | token->location); | |
7e2de6df | 4342 | if (const char *suggestion = hint.suggestion ()) |
1a4f11c8 | 4343 | { |
1a4f11c8 | 4344 | gcc_rich_location richloc (token->location); |
7e2de6df | 4345 | richloc.add_fixit_replace (suggestion); |
64a5912c DM |
4346 | error_at (&richloc, |
4347 | "unknown type name %qE; did you mean %qs?", | |
7e2de6df | 4348 | token->value, suggestion); |
1a4f11c8 DM |
4349 | } |
4350 | else | |
4351 | error_at (token->location, "unknown type name %qE", token->value); | |
09a1e889 SZ |
4352 | parser->error = true; |
4353 | } | |
27bf414c JM |
4354 | /* ??? In some Objective-C cases '...' isn't applicable so there |
4355 | should be a different message. */ | |
09a1e889 SZ |
4356 | else |
4357 | c_parser_error (parser, | |
4358 | "expected declaration specifiers or %<...%>"); | |
27bf414c JM |
4359 | c_parser_skip_to_end_of_parameter (parser); |
4360 | return NULL; | |
4361 | } | |
8139a48e DM |
4362 | |
4363 | location_t start_loc = c_parser_peek_token (parser)->location; | |
4364 | ||
27bf414c JM |
4365 | specs = build_null_declspecs (); |
4366 | if (attrs) | |
4367 | { | |
0b2c4be5 | 4368 | declspecs_add_attrs (input_location, specs, attrs); |
27bf414c JM |
4369 | attrs = NULL_TREE; |
4370 | } | |
38b7bc7f | 4371 | c_parser_declspecs (parser, specs, true, true, true, true, false, |
4e03c3a7 | 4372 | !have_gnu_attrs, true, cla_nonabstract_decl); |
27bf414c JM |
4373 | finish_declspecs (specs); |
4374 | pending_xref_error (); | |
4375 | prefix_attrs = specs->attrs; | |
4376 | specs->attrs = NULL_TREE; | |
9e5b2115 PB |
4377 | declarator = c_parser_declarator (parser, |
4378 | specs->typespec_kind != ctsk_none, | |
27bf414c JM |
4379 | C_DTR_PARM, &dummy); |
4380 | if (declarator == NULL) | |
4381 | { | |
4382 | c_parser_skip_until_found (parser, CPP_COMMA, NULL); | |
4383 | return NULL; | |
4384 | } | |
4385 | if (c_parser_next_token_is_keyword (parser, RID_ATTRIBUTE)) | |
783bfe5e | 4386 | postfix_attrs = c_parser_gnu_attributes (parser); |
8139a48e DM |
4387 | |
4388 | /* Generate a location for the parameter, ranging from the start of the | |
4389 | initial token to the end of the final token. | |
4390 | ||
4391 | If we have a identifier, then use it for the caret location, e.g. | |
4392 | ||
4393 | extern int callee (int one, int (*two)(int, int), float three); | |
4394 | ~~~~~~^~~~~~~~~~~~~~ | |
4395 | ||
4396 | otherwise, reuse the start location for the caret location e.g.: | |
4397 | ||
4398 | extern int callee (int one, int (*)(int, int), float three); | |
4399 | ^~~~~~~~~~~~~~~~~ | |
4400 | */ | |
4401 | location_t end_loc = parser->last_token_location; | |
4402 | ||
4403 | /* Find any cdk_id declarator; determine if we have an identifier. */ | |
4404 | c_declarator *id_declarator = declarator; | |
4405 | while (id_declarator && id_declarator->kind != cdk_id) | |
4406 | id_declarator = id_declarator->declarator; | |
1723e1be | 4407 | location_t caret_loc = (id_declarator->u.id.id |
8139a48e DM |
4408 | ? id_declarator->id_loc |
4409 | : start_loc); | |
4410 | location_t param_loc = make_location (caret_loc, start_loc, end_loc); | |
4411 | ||
27bf414c | 4412 | return build_c_parm (specs, chainon (postfix_attrs, prefix_attrs), |
8139a48e | 4413 | declarator, param_loc); |
27bf414c JM |
4414 | } |
4415 | ||
4416 | /* Parse a string literal in an asm expression. It should not be | |
4417 | translated, and wide string literals are an error although | |
4418 | permitted by the syntax. This is a GNU extension. | |
4419 | ||
4420 | asm-string-literal: | |
4421 | string-literal | |
471c5330 | 4422 | */ |
27bf414c JM |
4423 | |
4424 | static tree | |
4425 | c_parser_asm_string_literal (c_parser *parser) | |
4426 | { | |
4427 | tree str; | |
87f9e23d TT |
4428 | int save_flag = warn_overlength_strings; |
4429 | warn_overlength_strings = 0; | |
471c5330 | 4430 | str = c_parser_string_literal (parser, false, false).value; |
87f9e23d | 4431 | warn_overlength_strings = save_flag; |
27bf414c JM |
4432 | return str; |
4433 | } | |
4434 | ||
4435 | /* Parse a simple asm expression. This is used in restricted | |
4436 | contexts, where a full expression with inputs and outputs does not | |
4437 | make sense. This is a GNU extension. | |
4438 | ||
4439 | simple-asm-expr: | |
4440 | asm ( asm-string-literal ) | |
4441 | */ | |
4442 | ||
4443 | static tree | |
4444 | c_parser_simple_asm_expr (c_parser *parser) | |
4445 | { | |
4446 | tree str; | |
4447 | gcc_assert (c_parser_next_token_is_keyword (parser, RID_ASM)); | |
27bf414c | 4448 | c_parser_consume_token (parser); |
32129a17 DM |
4449 | matching_parens parens; |
4450 | if (!parens.require_open (parser)) | |
471c5330 | 4451 | return NULL_TREE; |
27bf414c | 4452 | str = c_parser_asm_string_literal (parser); |
32129a17 | 4453 | if (!parens.require_close (parser)) |
27bf414c JM |
4454 | { |
4455 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, NULL); | |
4456 | return NULL_TREE; | |
4457 | } | |
4458 | return str; | |
4459 | } | |
4460 | ||
0a35513e | 4461 | static tree |
783bfe5e | 4462 | c_parser_gnu_attribute_any_word (c_parser *parser) |
0a35513e AH |
4463 | { |
4464 | tree attr_name = NULL_TREE; | |
4465 | ||
4466 | if (c_parser_next_token_is (parser, CPP_KEYWORD)) | |
4467 | { | |
4468 | /* ??? See comment above about what keywords are accepted here. */ | |
4469 | bool ok; | |
4470 | switch (c_parser_peek_token (parser)->keyword) | |
4471 | { | |
4472 | case RID_STATIC: | |
4473 | case RID_UNSIGNED: | |
4474 | case RID_LONG: | |
0a35513e AH |
4475 | case RID_CONST: |
4476 | case RID_EXTERN: | |
4477 | case RID_REGISTER: | |
4478 | case RID_TYPEDEF: | |
4479 | case RID_SHORT: | |
4480 | case RID_INLINE: | |
4481 | case RID_NORETURN: | |
4482 | case RID_VOLATILE: | |
4483 | case RID_SIGNED: | |
4484 | case RID_AUTO: | |
4485 | case RID_RESTRICT: | |
4486 | case RID_COMPLEX: | |
4487 | case RID_THREAD: | |
4488 | case RID_INT: | |
4489 | case RID_CHAR: | |
4490 | case RID_FLOAT: | |
4491 | case RID_DOUBLE: | |
4492 | case RID_VOID: | |
4493 | case RID_DFLOAT32: | |
4494 | case RID_DFLOAT64: | |
4495 | case RID_DFLOAT128: | |
c65699ef | 4496 | CASE_RID_FLOATN_NX: |
0a35513e AH |
4497 | case RID_BOOL: |
4498 | case RID_FRACT: | |
4499 | case RID_ACCUM: | |
4500 | case RID_SAT: | |
4501 | case RID_TRANSACTION_ATOMIC: | |
4502 | case RID_TRANSACTION_CANCEL: | |
267bac10 | 4503 | case RID_ATOMIC: |
38b7bc7f | 4504 | case RID_AUTO_TYPE: |
78a7c317 DD |
4505 | case RID_INT_N_0: |
4506 | case RID_INT_N_1: | |
4507 | case RID_INT_N_2: | |
4508 | case RID_INT_N_3: | |
0a35513e AH |
4509 | ok = true; |
4510 | break; | |
4511 | default: | |
4512 | ok = false; | |
4513 | break; | |
4514 | } | |
4515 | if (!ok) | |
4516 | return NULL_TREE; | |
4517 | ||
4518 | /* Accept __attribute__((__const)) as __attribute__((const)) etc. */ | |
4519 | attr_name = ridpointers[(int) c_parser_peek_token (parser)->keyword]; | |
4520 | } | |
4521 | else if (c_parser_next_token_is (parser, CPP_NAME)) | |
4522 | attr_name = c_parser_peek_token (parser)->value; | |
4523 | ||
4524 | return attr_name; | |
4525 | } | |
4526 | ||
c01bd174 JM |
4527 | /* Parse attribute arguments. This is a common form of syntax |
4528 | covering all currently valid GNU and standard attributes. | |
4529 | ||
4530 | gnu-attribute-arguments: | |
4531 | identifier | |
4532 | identifier , nonempty-expr-list | |
4533 | expr-list | |
4534 | ||
4535 | where the "identifier" must not be declared as a type. ??? Why not | |
4536 | allow identifiers declared as types to start the arguments? */ | |
4537 | ||
4538 | static tree | |
2cc94aa8 JM |
4539 | c_parser_attribute_arguments (c_parser *parser, bool takes_identifier, |
4540 | bool require_string, bool allow_empty_args) | |
c01bd174 JM |
4541 | { |
4542 | vec<tree, va_gc> *expr_list; | |
4543 | tree attr_args; | |
4544 | /* Parse the attribute contents. If they start with an | |
4545 | identifier which is followed by a comma or close | |
4546 | parenthesis, then the arguments start with that | |
4547 | identifier; otherwise they are an expression list. | |
4548 | In objective-c the identifier may be a classname. */ | |
4549 | if (c_parser_next_token_is (parser, CPP_NAME) | |
4550 | && (c_parser_peek_token (parser)->id_kind == C_ID_ID | |
4551 | || (c_dialect_objc () | |
4552 | && c_parser_peek_token (parser)->id_kind | |
4553 | == C_ID_CLASSNAME)) | |
4554 | && ((c_parser_peek_2nd_token (parser)->type == CPP_COMMA) | |
4555 | || (c_parser_peek_2nd_token (parser)->type | |
4556 | == CPP_CLOSE_PAREN)) | |
4557 | && (takes_identifier | |
4558 | || (c_dialect_objc () | |
4559 | && c_parser_peek_token (parser)->id_kind | |
4560 | == C_ID_CLASSNAME))) | |
4561 | { | |
4562 | tree arg1 = c_parser_peek_token (parser)->value; | |
4563 | c_parser_consume_token (parser); | |
4564 | if (c_parser_next_token_is (parser, CPP_CLOSE_PAREN)) | |
4565 | attr_args = build_tree_list (NULL_TREE, arg1); | |
4566 | else | |
4567 | { | |
4568 | tree tree_list; | |
4569 | c_parser_consume_token (parser); | |
4570 | expr_list = c_parser_expr_list (parser, false, true, | |
4571 | NULL, NULL, NULL, NULL); | |
4572 | tree_list = build_tree_list_vec (expr_list); | |
4573 | attr_args = tree_cons (NULL_TREE, arg1, tree_list); | |
4574 | release_tree_vector (expr_list); | |
4575 | } | |
4576 | } | |
4577 | else | |
4578 | { | |
4579 | if (c_parser_next_token_is (parser, CPP_CLOSE_PAREN)) | |
2cc94aa8 JM |
4580 | { |
4581 | if (!allow_empty_args) | |
4582 | error_at (c_parser_peek_token (parser)->location, | |
4583 | "parentheses must be omitted if " | |
4584 | "attribute argument list is empty"); | |
4585 | attr_args = NULL_TREE; | |
4586 | } | |
4587 | else if (require_string) | |
4588 | { | |
4589 | /* The only valid argument for this attribute is a string | |
4590 | literal. Handle this specially here to avoid accepting | |
4591 | string literals with excess parentheses. */ | |
4592 | tree string = c_parser_string_literal (parser, false, true).value; | |
4593 | attr_args = build_tree_list (NULL_TREE, string); | |
4594 | } | |
c01bd174 JM |
4595 | else |
4596 | { | |
4597 | expr_list = c_parser_expr_list (parser, false, true, | |
4598 | NULL, NULL, NULL, NULL); | |
4599 | attr_args = build_tree_list_vec (expr_list); | |
4600 | release_tree_vector (expr_list); | |
4601 | } | |
4602 | } | |
4603 | return attr_args; | |
4604 | } | |
4605 | ||
783bfe5e | 4606 | /* Parse (possibly empty) gnu-attributes. This is a GNU extension. |
27bf414c | 4607 | |
783bfe5e | 4608 | gnu-attributes: |
27bf414c | 4609 | empty |
783bfe5e | 4610 | gnu-attributes gnu-attribute |
27bf414c | 4611 | |
783bfe5e JM |
4612 | gnu-attribute: |
4613 | __attribute__ ( ( gnu-attribute-list ) ) | |
27bf414c | 4614 | |
783bfe5e JM |
4615 | gnu-attribute-list: |
4616 | gnu-attrib | |
4617 | gnu-attribute_list , gnu-attrib | |
27bf414c | 4618 | |
783bfe5e | 4619 | gnu-attrib: |
27bf414c JM |
4620 | empty |
4621 | any-word | |
c01bd174 | 4622 | any-word ( gnu-attribute-arguments ) |
27bf414c | 4623 | |
c01bd174 | 4624 | where "any-word" may be any identifier (including one declared as a |
27bf414c JM |
4625 | type), a reserved word storage class specifier, type specifier or |
4626 | type qualifier. ??? This still leaves out most reserved keywords | |
c01bd174 | 4627 | (following the old parser), shouldn't we include them? |
98f08eb8 MS |
4628 | When EXPECT_COMMA is true, expect the attribute to be preceded |
4629 | by a comma and fail if it isn't. | |
4630 | When EMPTY_OK is true, allow and consume any number of consecutive | |
4631 | commas with no attributes in between. */ | |
4632 | ||
4633 | static tree | |
783bfe5e JM |
4634 | c_parser_gnu_attribute (c_parser *parser, tree attrs, |
4635 | bool expect_comma = false, bool empty_ok = true) | |
98f08eb8 MS |
4636 | { |
4637 | bool comma_first = c_parser_next_token_is (parser, CPP_COMMA); | |
4638 | if (!comma_first | |
4639 | && !c_parser_next_token_is (parser, CPP_NAME) | |
4640 | && !c_parser_next_token_is (parser, CPP_KEYWORD)) | |
4641 | return NULL_TREE; | |
4642 | ||
4643 | while (c_parser_next_token_is (parser, CPP_COMMA)) | |
4644 | { | |
4645 | c_parser_consume_token (parser); | |
4646 | if (!empty_ok) | |
4647 | return attrs; | |
4648 | } | |
4649 | ||
783bfe5e | 4650 | tree attr_name = c_parser_gnu_attribute_any_word (parser); |
98f08eb8 MS |
4651 | if (attr_name == NULL_TREE) |
4652 | return NULL_TREE; | |
4653 | ||
4654 | attr_name = canonicalize_attr_name (attr_name); | |
4655 | c_parser_consume_token (parser); | |
4656 | ||
4657 | tree attr; | |
4658 | if (c_parser_next_token_is_not (parser, CPP_OPEN_PAREN)) | |
4659 | { | |
4660 | if (expect_comma && !comma_first) | |
4661 | { | |
4662 | /* A comma is missing between the last attribute on the chain | |
4663 | and this one. */ | |
4664 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, | |
4665 | "expected %<)%>"); | |
4666 | return error_mark_node; | |
4667 | } | |
4668 | attr = build_tree_list (attr_name, NULL_TREE); | |
4669 | /* Add this attribute to the list. */ | |
4670 | attrs = chainon (attrs, attr); | |
4671 | return attrs; | |
4672 | } | |
4673 | c_parser_consume_token (parser); | |
4674 | ||
c01bd174 JM |
4675 | tree attr_args |
4676 | = c_parser_attribute_arguments (parser, | |
2cc94aa8 JM |
4677 | attribute_takes_identifier_p (attr_name), |
4678 | false, true); | |
98f08eb8 MS |
4679 | |
4680 | attr = build_tree_list (attr_name, attr_args); | |
4681 | if (c_parser_next_token_is (parser, CPP_CLOSE_PAREN)) | |
4682 | c_parser_consume_token (parser); | |
4683 | else | |
4684 | { | |
98f08eb8 MS |
4685 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, |
4686 | "expected %<)%>"); | |
4687 | return error_mark_node; | |
4688 | } | |
4689 | ||
4690 | if (expect_comma && !comma_first) | |
4691 | { | |
4692 | /* A comma is missing between the last attribute on the chain | |
4693 | and this one. */ | |
4694 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, | |
4695 | "expected %<)%>"); | |
4696 | return error_mark_node; | |
4697 | } | |
4698 | ||
4699 | /* Add this attribute to the list. */ | |
4700 | attrs = chainon (attrs, attr); | |
4701 | return attrs; | |
4702 | } | |
27bf414c JM |
4703 | |
4704 | static tree | |
783bfe5e | 4705 | c_parser_gnu_attributes (c_parser *parser) |
27bf414c JM |
4706 | { |
4707 | tree attrs = NULL_TREE; | |
4708 | while (c_parser_next_token_is_keyword (parser, RID_ATTRIBUTE)) | |
4709 | { | |
471c5330 JM |
4710 | bool save_translate_strings_p = parser->translate_strings_p; |
4711 | parser->translate_strings_p = false; | |
2c7020eb | 4712 | /* Consume the `__attribute__' keyword. */ |
27bf414c | 4713 | c_parser_consume_token (parser); |
2c7020eb | 4714 | /* Look for the two `(' tokens. */ |
27bf414c JM |
4715 | if (!c_parser_require (parser, CPP_OPEN_PAREN, "expected %<(%>")) |
4716 | { | |
471c5330 | 4717 | parser->translate_strings_p = save_translate_strings_p; |
27bf414c JM |
4718 | return attrs; |
4719 | } | |
4720 | if (!c_parser_require (parser, CPP_OPEN_PAREN, "expected %<(%>")) | |
4721 | { | |
471c5330 | 4722 | parser->translate_strings_p = save_translate_strings_p; |
27bf414c JM |
4723 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, NULL); |
4724 | return attrs; | |
4725 | } | |
98f08eb8 MS |
4726 | /* Parse the attribute list. Require a comma between successive |
4727 | (possibly empty) attributes. */ | |
4728 | for (bool expect_comma = false; ; expect_comma = true) | |
27bf414c | 4729 | { |
98f08eb8 | 4730 | /* Parse a single attribute. */ |
783bfe5e | 4731 | tree attr = c_parser_gnu_attribute (parser, attrs, expect_comma); |
98f08eb8 MS |
4732 | if (attr == error_mark_node) |
4733 | return attrs; | |
4734 | if (!attr) | |
0a35513e | 4735 | break; |
98f08eb8 MS |
4736 | attrs = attr; |
4737 | } | |
577eec56 | 4738 | |
2c7020eb | 4739 | /* Look for the two `)' tokens. */ |
27bf414c JM |
4740 | if (c_parser_next_token_is (parser, CPP_CLOSE_PAREN)) |
4741 | c_parser_consume_token (parser); | |
4742 | else | |
4743 | { | |
471c5330 | 4744 | parser->translate_strings_p = save_translate_strings_p; |
27bf414c JM |
4745 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, |
4746 | "expected %<)%>"); | |
4747 | return attrs; | |
4748 | } | |
4749 | if (c_parser_next_token_is (parser, CPP_CLOSE_PAREN)) | |
4750 | c_parser_consume_token (parser); | |
4751 | else | |
4752 | { | |
471c5330 | 4753 | parser->translate_strings_p = save_translate_strings_p; |
27bf414c JM |
4754 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, |
4755 | "expected %<)%>"); | |
4756 | return attrs; | |
4757 | } | |
471c5330 | 4758 | parser->translate_strings_p = save_translate_strings_p; |
27bf414c | 4759 | } |
41958c28 | 4760 | |
27bf414c JM |
4761 | return attrs; |
4762 | } | |
4763 | ||
c01bd174 JM |
4764 | /* Parse an optional balanced token sequence. |
4765 | ||
4766 | balanced-token-sequence: | |
4767 | balanced-token | |
4768 | balanced-token-sequence balanced-token | |
4769 | ||
4770 | balanced-token: | |
4771 | ( balanced-token-sequence[opt] ) | |
4772 | [ balanced-token-sequence[opt] ] | |
4773 | { balanced-token-sequence[opt] } | |
4774 | any token other than ()[]{} | |
4775 | */ | |
4776 | ||
4777 | static void | |
4778 | c_parser_balanced_token_sequence (c_parser *parser) | |
4779 | { | |
4780 | while (true) | |
4781 | { | |
4782 | c_token *token = c_parser_peek_token (parser); | |
4783 | switch (token->type) | |
4784 | { | |
4785 | case CPP_OPEN_BRACE: | |
4786 | { | |
4787 | matching_braces braces; | |
4788 | braces.consume_open (parser); | |
4789 | c_parser_balanced_token_sequence (parser); | |
4790 | braces.require_close (parser); | |
4791 | break; | |
4792 | } | |
4793 | ||
4794 | case CPP_OPEN_PAREN: | |
4795 | { | |
4796 | matching_parens parens; | |
4797 | parens.consume_open (parser); | |
4798 | c_parser_balanced_token_sequence (parser); | |
4799 | parens.require_close (parser); | |
4800 | break; | |
4801 | } | |
4802 | ||
4803 | case CPP_OPEN_SQUARE: | |
4804 | c_parser_consume_token (parser); | |
4805 | c_parser_balanced_token_sequence (parser); | |
4806 | c_parser_require (parser, CPP_CLOSE_SQUARE, "expected %<]%>"); | |
4807 | break; | |
4808 | ||
4809 | case CPP_CLOSE_BRACE: | |
4810 | case CPP_CLOSE_PAREN: | |
4811 | case CPP_CLOSE_SQUARE: | |
4812 | case CPP_EOF: | |
4813 | return; | |
4814 | ||
4815 | default: | |
4816 | c_parser_consume_token (parser); | |
4817 | break; | |
4818 | } | |
4819 | } | |
4820 | } | |
4821 | ||
4822 | /* Parse standard (C2X) attributes (including GNU attributes in the | |
4823 | gnu:: namespace). | |
4824 | ||
4825 | attribute-specifier-sequence: | |
4826 | attribute-specifier-sequence[opt] attribute-specifier | |
4827 | ||
4828 | attribute-specifier: | |
4829 | [ [ attribute-list ] ] | |
4830 | ||
4831 | attribute-list: | |
4832 | attribute[opt] | |
4833 | attribute-list, attribute[opt] | |
4834 | ||
4835 | attribute: | |
4836 | attribute-token attribute-argument-clause[opt] | |
4837 | ||
4838 | attribute-token: | |
4839 | standard-attribute | |
4840 | attribute-prefixed-token | |
4841 | ||
4842 | standard-attribute: | |
4843 | identifier | |
4844 | ||
4845 | attribute-prefixed-token: | |
4846 | attribute-prefix :: identifier | |
4847 | ||
4848 | attribute-prefix: | |
4849 | identifier | |
4850 | ||
4851 | attribute-argument-clause: | |
4852 | ( balanced-token-sequence[opt] ) | |
4853 | ||
4854 | Keywords are accepted as identifiers for this purpose. | |
4855 | */ | |
4856 | ||
4857 | static tree | |
192961ff | 4858 | c_parser_std_attribute (c_parser *parser, bool for_tm) |
c01bd174 JM |
4859 | { |
4860 | c_token *token = c_parser_peek_token (parser); | |
4861 | tree ns, name, attribute; | |
4862 | ||
4863 | /* Parse the attribute-token. */ | |
4864 | if (token->type != CPP_NAME && token->type != CPP_KEYWORD) | |
4865 | { | |
4866 | c_parser_error (parser, "expected identifier"); | |
4867 | return error_mark_node; | |
4868 | } | |
4869 | name = canonicalize_attr_name (token->value); | |
4870 | c_parser_consume_token (parser); | |
4871 | if (c_parser_next_token_is (parser, CPP_SCOPE)) | |
4872 | { | |
4873 | ns = name; | |
4874 | c_parser_consume_token (parser); | |
4875 | token = c_parser_peek_token (parser); | |
4876 | if (token->type != CPP_NAME && token->type != CPP_KEYWORD) | |
4877 | { | |
4878 | c_parser_error (parser, "expected identifier"); | |
4879 | return error_mark_node; | |
4880 | } | |
4881 | name = canonicalize_attr_name (token->value); | |
4882 | c_parser_consume_token (parser); | |
4883 | } | |
4884 | else | |
4885 | ns = NULL_TREE; | |
4886 | attribute = build_tree_list (build_tree_list (ns, name), NULL_TREE); | |
4887 | ||
4888 | /* Parse the arguments, if any. */ | |
c01bd174 | 4889 | const attribute_spec *as = lookup_attribute_spec (TREE_PURPOSE (attribute)); |
192961ff JM |
4890 | if (c_parser_next_token_is_not (parser, CPP_OPEN_PAREN)) |
4891 | goto out; | |
4892 | { | |
4893 | location_t open_loc = c_parser_peek_token (parser)->location; | |
4894 | matching_parens parens; | |
4895 | parens.consume_open (parser); | |
4896 | if ((as && as->max_length == 0) | |
4897 | /* Special-case the transactional-memory attribute "outer", | |
4898 | which is specially handled but not registered as an | |
4899 | attribute, to avoid allowing arbitrary balanced token | |
4900 | sequences as arguments. */ | |
4901 | || is_attribute_p ("outer", name)) | |
4902 | { | |
4903 | error_at (open_loc, "%qE attribute does not take any arguments", name); | |
4904 | parens.skip_until_found_close (parser); | |
4905 | return error_mark_node; | |
4906 | } | |
4907 | if (as) | |
4908 | { | |
4909 | bool takes_identifier | |
4910 | = (ns != NULL_TREE | |
4911 | && strcmp (IDENTIFIER_POINTER (ns), "gnu") == 0 | |
4912 | && attribute_takes_identifier_p (name)); | |
4913 | bool require_string | |
4914 | = (ns == NULL_TREE | |
4915 | && strcmp (IDENTIFIER_POINTER (name), "deprecated") == 0); | |
4916 | TREE_VALUE (attribute) | |
4917 | = c_parser_attribute_arguments (parser, takes_identifier, | |
4918 | require_string, false); | |
4919 | } | |
4920 | else | |
4921 | c_parser_balanced_token_sequence (parser); | |
4922 | parens.require_close (parser); | |
4923 | } | |
4924 | out: | |
4925 | if (ns == NULL_TREE && !for_tm && !as && !is_attribute_p ("nodiscard", name)) | |
c01bd174 | 4926 | { |
192961ff JM |
4927 | /* An attribute with standard syntax and no namespace specified |
4928 | is a constraint violation if it is not one of the known | |
4929 | standard attributes (of which nodiscard is the only one | |
4930 | without a handler in GCC). Diagnose it here with a pedwarn | |
4931 | and then discard it to prevent a duplicate warning later. */ | |
4932 | pedwarn (input_location, OPT_Wattributes, "%qE attribute ignored", | |
4933 | name); | |
c01bd174 JM |
4934 | return error_mark_node; |
4935 | } | |
c01bd174 JM |
4936 | return attribute; |
4937 | } | |
4938 | ||
4939 | static tree | |
4940 | c_parser_std_attribute_specifier (c_parser *parser, bool for_tm) | |
4941 | { | |
d5fbe5e0 JM |
4942 | bool seen_deprecated = false; |
4943 | bool seen_fallthrough = false; | |
4944 | bool seen_maybe_unused = false; | |
c01bd174 JM |
4945 | location_t loc = c_parser_peek_token (parser)->location; |
4946 | if (!c_parser_require (parser, CPP_OPEN_SQUARE, "expected %<[%>")) | |
4947 | return NULL_TREE; | |
4948 | if (!c_parser_require (parser, CPP_OPEN_SQUARE, "expected %<[%>")) | |
4949 | { | |
4950 | c_parser_skip_until_found (parser, CPP_CLOSE_SQUARE, "expected %<]%>"); | |
4951 | return NULL_TREE; | |
4952 | } | |
4953 | if (!for_tm) | |
4954 | pedwarn_c11 (loc, OPT_Wpedantic, | |
4955 | "ISO C does not support %<[[]]%> attributes before C2X"); | |
4956 | tree attributes = NULL_TREE; | |
4957 | while (true) | |
4958 | { | |
4959 | c_token *token = c_parser_peek_token (parser); | |
4960 | if (token->type == CPP_CLOSE_SQUARE) | |
4961 | break; | |
4962 | if (token->type == CPP_COMMA) | |
4963 | { | |
4964 | c_parser_consume_token (parser); | |
4965 | continue; | |
4966 | } | |
192961ff | 4967 | tree attribute = c_parser_std_attribute (parser, for_tm); |
c01bd174 JM |
4968 | if (attribute != error_mark_node) |
4969 | { | |
d5fbe5e0 JM |
4970 | bool duplicate = false; |
4971 | tree name = get_attribute_name (attribute); | |
4972 | tree ns = get_attribute_namespace (attribute); | |
4973 | if (ns == NULL_TREE) | |
4974 | { | |
4975 | /* Some standard attributes may appear at most once in | |
4976 | each attribute list. Diagnose duplicates and remove | |
4977 | them from the list to avoid subsequent diagnostics | |
4978 | such as the more general one for multiple | |
4979 | "fallthrough" attributes in the same place (including | |
4980 | in separate attribute lists in the same attribute | |
4981 | specifier sequence, which is not a constraint | |
4982 | violation). */ | |
4983 | if (is_attribute_p ("deprecated", name)) | |
4984 | { | |
4985 | if (seen_deprecated) | |
4986 | { | |
4987 | error ("attribute %<deprecated%> can appear at most " | |
4988 | "once in an attribute-list"); | |
4989 | duplicate = true; | |
4990 | } | |
4991 | seen_deprecated = true; | |
4992 | } | |
4993 | else if (is_attribute_p ("fallthrough", name)) | |
4994 | { | |
4995 | if (seen_fallthrough) | |
4996 | { | |
4997 | error ("attribute %<fallthrough%> can appear at most " | |
4998 | "once in an attribute-list"); | |
4999 | duplicate = true; | |
5000 | } | |
5001 | seen_fallthrough = true; | |
5002 | } | |
5003 | else if (is_attribute_p ("maybe_unused", name)) | |
5004 | { | |
5005 | if (seen_maybe_unused) | |
5006 | { | |
5007 | error ("attribute %<maybe_unused%> can appear at most " | |
5008 | "once in an attribute-list"); | |
5009 | duplicate = true; | |
5010 | } | |
5011 | seen_maybe_unused = true; | |
5012 | } | |
5013 | } | |
5014 | if (!duplicate) | |
5015 | { | |
5016 | TREE_CHAIN (attribute) = attributes; | |
5017 | attributes = attribute; | |
5018 | } | |
c01bd174 JM |
5019 | } |
5020 | if (c_parser_next_token_is_not (parser, CPP_COMMA)) | |
5021 | break; | |
5022 | } | |
5023 | c_parser_skip_until_found (parser, CPP_CLOSE_SQUARE, "expected %<]%>"); | |
5024 | c_parser_skip_until_found (parser, CPP_CLOSE_SQUARE, "expected %<]%>"); | |
5025 | return nreverse (attributes); | |
5026 | } | |
5027 | ||
34b43828 JM |
5028 | /* Look past an optional balanced token sequence of raw look-ahead |
5029 | tokens starting with the *Nth token. *N is updated to point to the | |
5030 | following token. Return true if such a sequence was found, false | |
5031 | if the tokens parsed were not balanced. */ | |
5032 | ||
5033 | static bool | |
5034 | c_parser_check_balanced_raw_token_sequence (c_parser *parser, unsigned int *n) | |
5035 | { | |
5036 | while (true) | |
5037 | { | |
5038 | c_token *token = c_parser_peek_nth_token_raw (parser, *n); | |
5039 | switch (token->type) | |
5040 | { | |
5041 | case CPP_OPEN_BRACE: | |
5042 | { | |
5043 | ++*n; | |
5044 | if (c_parser_check_balanced_raw_token_sequence (parser, n)) | |
5045 | { | |
5046 | token = c_parser_peek_nth_token_raw (parser, *n); | |
5047 | if (token->type == CPP_CLOSE_BRACE) | |
5048 | ++*n; | |
5049 | else | |
5050 | return false; | |
5051 | } | |
5052 | else | |
5053 | return false; | |
5054 | break; | |
5055 | } | |
5056 | ||
5057 | case CPP_OPEN_PAREN: | |
5058 | { | |
5059 | ++*n; | |
5060 | if (c_parser_check_balanced_raw_token_sequence (parser, n)) | |
5061 | { | |
5062 | token = c_parser_peek_nth_token_raw (parser, *n); | |
5063 | if (token->type == CPP_CLOSE_PAREN) | |
5064 | ++*n; | |
5065 | else | |
5066 | return false; | |
5067 | } | |
5068 | else | |
5069 | return false; | |
5070 | break; | |
5071 | } | |
5072 | ||
5073 | case CPP_OPEN_SQUARE: | |
5074 | { | |
5075 | ++*n; | |
5076 | if (c_parser_check_balanced_raw_token_sequence (parser, n)) | |
5077 | { | |
5078 | token = c_parser_peek_nth_token_raw (parser, *n); | |
5079 | if (token->type == CPP_CLOSE_SQUARE) | |
5080 | ++*n; | |
5081 | else | |
5082 | return false; | |
5083 | } | |
5084 | else | |
5085 | return false; | |
5086 | break; | |
5087 | } | |
5088 | ||
5089 | case CPP_CLOSE_BRACE: | |
5090 | case CPP_CLOSE_PAREN: | |
5091 | case CPP_CLOSE_SQUARE: | |
5092 | case CPP_EOF: | |
5093 | return true; | |
5094 | ||
5095 | default: | |
5096 | ++*n; | |
5097 | break; | |
5098 | } | |
5099 | } | |
5100 | } | |
5101 | ||
4e03c3a7 JM |
5102 | /* Return whether standard attributes start with the Nth token. */ |
5103 | ||
5104 | static bool | |
5105 | c_parser_nth_token_starts_std_attributes (c_parser *parser, unsigned int n) | |
5106 | { | |
5107 | if (!(c_parser_peek_nth_token (parser, n)->type == CPP_OPEN_SQUARE | |
5108 | && c_parser_peek_nth_token (parser, n + 1)->type == CPP_OPEN_SQUARE)) | |
5109 | return false; | |
34b43828 JM |
5110 | /* In C, '[[' must start attributes. In Objective-C, we need to |
5111 | check whether '[[' is matched by ']]'. */ | |
5112 | if (!c_dialect_objc ()) | |
5113 | return true; | |
5114 | n += 2; | |
5115 | if (!c_parser_check_balanced_raw_token_sequence (parser, &n)) | |
5116 | return false; | |
5117 | c_token *token = c_parser_peek_nth_token_raw (parser, n); | |
5118 | if (token->type != CPP_CLOSE_SQUARE) | |
5119 | return false; | |
5120 | token = c_parser_peek_nth_token_raw (parser, n + 1); | |
5121 | return token->type == CPP_CLOSE_SQUARE; | |
4e03c3a7 JM |
5122 | } |
5123 | ||
5124 | static tree | |
5125 | c_parser_std_attribute_specifier_sequence (c_parser *parser) | |
5126 | { | |
5127 | tree attributes = NULL_TREE; | |
5128 | do | |
5129 | { | |
5130 | tree attrs = c_parser_std_attribute_specifier (parser, false); | |
5131 | attributes = chainon (attributes, attrs); | |
5132 | } | |
5133 | while (c_parser_nth_token_starts_std_attributes (parser, 1)); | |
5134 | return attributes; | |
5135 | } | |
5136 | ||
4b2b493f JM |
5137 | /* Parse a type name (C90 6.5.5, C99 6.7.6, C11 6.7.7). ALIGNAS_OK |
5138 | says whether alignment specifiers are OK (only in cases that might | |
5139 | be the type name of a compound literal). | |
27bf414c JM |
5140 | |
5141 | type-name: | |
5142 | specifier-qualifier-list abstract-declarator[opt] | |
5143 | */ | |
5144 | ||
1ee62b92 | 5145 | struct c_type_name * |
4b2b493f | 5146 | c_parser_type_name (c_parser *parser, bool alignas_ok) |
27bf414c JM |
5147 | { |
5148 | struct c_declspecs *specs = build_null_declspecs (); | |
5149 | struct c_declarator *declarator; | |
5150 | struct c_type_name *ret; | |
5151 | bool dummy = false; | |
4b2b493f | 5152 | c_parser_declspecs (parser, specs, false, true, true, alignas_ok, false, |
4e03c3a7 | 5153 | false, true, cla_prefer_type); |
27bf414c JM |
5154 | if (!specs->declspecs_seen_p) |
5155 | { | |
5156 | c_parser_error (parser, "expected specifier-qualifier-list"); | |
5157 | return NULL; | |
5158 | } | |
29ce73cb PB |
5159 | if (specs->type != error_mark_node) |
5160 | { | |
5161 | pending_xref_error (); | |
5162 | finish_declspecs (specs); | |
5163 | } | |
9e5b2115 PB |
5164 | declarator = c_parser_declarator (parser, |
5165 | specs->typespec_kind != ctsk_none, | |
27bf414c JM |
5166 | C_DTR_ABSTRACT, &dummy); |
5167 | if (declarator == NULL) | |
5168 | return NULL; | |
5169 | ret = XOBNEW (&parser_obstack, struct c_type_name); | |
5170 | ret->specs = specs; | |
5171 | ret->declarator = declarator; | |
5172 | return ret; | |
5173 | } | |
5174 | ||
31dc71a8 | 5175 | /* Parse an initializer (C90 6.5.7, C99 6.7.8, C11 6.7.9). |
27bf414c JM |
5176 | |
5177 | initializer: | |
5178 | assignment-expression | |
5179 | { initializer-list } | |
5180 | { initializer-list , } | |
5181 | ||
5182 | initializer-list: | |
5183 | designation[opt] initializer | |
5184 | initializer-list , designation[opt] initializer | |
5185 | ||
5186 | designation: | |
5187 | designator-list = | |
5188 | ||
5189 | designator-list: | |
5190 | designator | |
5191 | designator-list designator | |
5192 | ||
5193 | designator: | |
5194 | array-designator | |
5195 | . identifier | |
5196 | ||
5197 | array-designator: | |
5198 | [ constant-expression ] | |
5199 | ||
5200 | GNU extensions: | |
5201 | ||
5202 | initializer: | |
5203 | { } | |
5204 | ||
5205 | designation: | |
5206 | array-designator | |
5207 | identifier : | |
5208 | ||
5209 | array-designator: | |
5210 | [ constant-expression ... constant-expression ] | |
5211 | ||
5212 | Any expression without commas is accepted in the syntax for the | |
5213 | constant-expressions, with non-constant expressions rejected later. | |
5214 | ||
5215 | This function is only used for top-level initializers; for nested | |
5216 | ones, see c_parser_initval. */ | |
5217 | ||
5218 | static struct c_expr | |
5219 | c_parser_initializer (c_parser *parser) | |
5220 | { | |
5221 | if (c_parser_next_token_is (parser, CPP_OPEN_BRACE)) | |
16595a1f | 5222 | return c_parser_braced_init (parser, NULL_TREE, false, NULL); |
27bf414c | 5223 | else |
46bdb9cf JM |
5224 | { |
5225 | struct c_expr ret; | |
c2255bc4 | 5226 | location_t loc = c_parser_peek_token (parser)->location; |
46bdb9cf JM |
5227 | ret = c_parser_expr_no_commas (parser, NULL); |
5228 | if (TREE_CODE (ret.value) != STRING_CST | |
5229 | && TREE_CODE (ret.value) != COMPOUND_LITERAL_EXPR) | |
267bac10 | 5230 | ret = convert_lvalue_to_rvalue (loc, ret, true, true); |
46bdb9cf JM |
5231 | return ret; |
5232 | } | |
27bf414c JM |
5233 | } |
5234 | ||
5dd9a9d0 DM |
5235 | /* The location of the last comma within the current initializer list, |
5236 | or UNKNOWN_LOCATION if not within one. */ | |
5237 | ||
5238 | location_t last_init_list_comma; | |
5239 | ||
27bf414c JM |
5240 | /* Parse a braced initializer list. TYPE is the type specified for a |
5241 | compound literal, and NULL_TREE for other initializers and for | |
5242 | nested braced lists. NESTED_P is true for nested braced lists, | |
5243 | false for the list of a compound literal or the list that is the | |
5244 | top-level initializer in a declaration. */ | |
5245 | ||
5246 | static struct c_expr | |
16595a1f BS |
5247 | c_parser_braced_init (c_parser *parser, tree type, bool nested_p, |
5248 | struct obstack *outer_obstack) | |
27bf414c | 5249 | { |
a1e3b3d9 LB |
5250 | struct c_expr ret; |
5251 | struct obstack braced_init_obstack; | |
c7412148 | 5252 | location_t brace_loc = c_parser_peek_token (parser)->location; |
a1e3b3d9 | 5253 | gcc_obstack_init (&braced_init_obstack); |
27bf414c | 5254 | gcc_assert (c_parser_next_token_is (parser, CPP_OPEN_BRACE)); |
32129a17 DM |
5255 | matching_braces braces; |
5256 | braces.consume_open (parser); | |
27bf414c | 5257 | if (nested_p) |
16595a1f BS |
5258 | { |
5259 | finish_implicit_inits (brace_loc, outer_obstack); | |
5260 | push_init_level (brace_loc, 0, &braced_init_obstack); | |
5261 | } | |
27bf414c JM |
5262 | else |
5263 | really_start_incremental_init (type); | |
5264 | if (c_parser_next_token_is (parser, CPP_CLOSE_BRACE)) | |
5265 | { | |
c1771a20 | 5266 | pedwarn (brace_loc, OPT_Wpedantic, "ISO C forbids empty initializer braces"); |
27bf414c JM |
5267 | } |
5268 | else | |
5269 | { | |
5270 | /* Parse a non-empty initializer list, possibly with a trailing | |
5271 | comma. */ | |
5272 | while (true) | |
5273 | { | |
a1e3b3d9 | 5274 | c_parser_initelt (parser, &braced_init_obstack); |
27bf414c JM |
5275 | if (parser->error) |
5276 | break; | |
5277 | if (c_parser_next_token_is (parser, CPP_COMMA)) | |
5dd9a9d0 DM |
5278 | { |
5279 | last_init_list_comma = c_parser_peek_token (parser)->location; | |
5280 | c_parser_consume_token (parser); | |
5281 | } | |
27bf414c JM |
5282 | else |
5283 | break; | |
5284 | if (c_parser_next_token_is (parser, CPP_CLOSE_BRACE)) | |
5285 | break; | |
5286 | } | |
5287 | } | |
bef08b71 DM |
5288 | c_token *next_tok = c_parser_peek_token (parser); |
5289 | if (next_tok->type != CPP_CLOSE_BRACE) | |
27bf414c | 5290 | { |
913884f7 | 5291 | ret.set_error (); |
27bf414c | 5292 | ret.original_code = ERROR_MARK; |
6866c6e8 | 5293 | ret.original_type = NULL; |
32129a17 | 5294 | braces.skip_until_found_close (parser); |
5dd9a9d0 | 5295 | pop_init_level (brace_loc, 0, &braced_init_obstack, last_init_list_comma); |
a1e3b3d9 | 5296 | obstack_free (&braced_init_obstack, NULL); |
27bf414c JM |
5297 | return ret; |
5298 | } | |
bef08b71 | 5299 | location_t close_loc = next_tok->location; |
27bf414c | 5300 | c_parser_consume_token (parser); |
5dd9a9d0 | 5301 | ret = pop_init_level (brace_loc, 0, &braced_init_obstack, close_loc); |
a1e3b3d9 | 5302 | obstack_free (&braced_init_obstack, NULL); |
bef08b71 | 5303 | set_c_expr_source_range (&ret, brace_loc, close_loc); |
a1e3b3d9 | 5304 | return ret; |
27bf414c JM |
5305 | } |
5306 | ||
5307 | /* Parse a nested initializer, including designators. */ | |
5308 | ||
5309 | static void | |
a1e3b3d9 | 5310 | c_parser_initelt (c_parser *parser, struct obstack * braced_init_obstack) |
27bf414c JM |
5311 | { |
5312 | /* Parse any designator or designator list. A single array | |
5313 | designator may have the subsequent "=" omitted in GNU C, but a | |
5314 | longer list or a structure member designator may not. */ | |
5315 | if (c_parser_next_token_is (parser, CPP_NAME) | |
5316 | && c_parser_peek_2nd_token (parser)->type == CPP_COLON) | |
5317 | { | |
5318 | /* Old-style structure member designator. */ | |
ea58ef42 MP |
5319 | set_init_label (c_parser_peek_token (parser)->location, |
5320 | c_parser_peek_token (parser)->value, | |
f7e4f2e3 | 5321 | c_parser_peek_token (parser)->location, |
a1e3b3d9 | 5322 | braced_init_obstack); |
fcf73884 | 5323 | /* Use the colon as the error location. */ |
c1771a20 | 5324 | pedwarn (c_parser_peek_2nd_token (parser)->location, OPT_Wpedantic, |
509c9d60 | 5325 | "obsolete use of designated initializer with %<:%>"); |
27bf414c JM |
5326 | c_parser_consume_token (parser); |
5327 | c_parser_consume_token (parser); | |
5328 | } | |
5329 | else | |
5330 | { | |
5331 | /* des_seen is 0 if there have been no designators, 1 if there | |
5332 | has been a single array designator and 2 otherwise. */ | |
5333 | int des_seen = 0; | |
c7412148 | 5334 | /* Location of a designator. */ |
922f2908 | 5335 | location_t des_loc = UNKNOWN_LOCATION; /* Quiet warning. */ |
27bf414c JM |
5336 | while (c_parser_next_token_is (parser, CPP_OPEN_SQUARE) |
5337 | || c_parser_next_token_is (parser, CPP_DOT)) | |
5338 | { | |
5339 | int des_prev = des_seen; | |
c7412148 TT |
5340 | if (!des_seen) |
5341 | des_loc = c_parser_peek_token (parser)->location; | |
27bf414c JM |
5342 | if (des_seen < 2) |
5343 | des_seen++; | |
5344 | if (c_parser_next_token_is (parser, CPP_DOT)) | |
5345 | { | |
5346 | des_seen = 2; | |
5347 | c_parser_consume_token (parser); | |
5348 | if (c_parser_next_token_is (parser, CPP_NAME)) | |
5349 | { | |
ea58ef42 | 5350 | set_init_label (des_loc, c_parser_peek_token (parser)->value, |
f7e4f2e3 | 5351 | c_parser_peek_token (parser)->location, |
a1e3b3d9 | 5352 | braced_init_obstack); |
27bf414c JM |
5353 | c_parser_consume_token (parser); |
5354 | } | |
5355 | else | |
5356 | { | |
5357 | struct c_expr init; | |
913884f7 | 5358 | init.set_error (); |
27bf414c | 5359 | init.original_code = ERROR_MARK; |
6866c6e8 | 5360 | init.original_type = NULL; |
27bf414c JM |
5361 | c_parser_error (parser, "expected identifier"); |
5362 | c_parser_skip_until_found (parser, CPP_COMMA, NULL); | |
34cf811f MP |
5363 | process_init_element (input_location, init, false, |
5364 | braced_init_obstack); | |
27bf414c JM |
5365 | return; |
5366 | } | |
5367 | } | |
5368 | else | |
5369 | { | |
5370 | tree first, second; | |
922f2908 | 5371 | location_t ellipsis_loc = UNKNOWN_LOCATION; /* Quiet warning. */ |
ea58ef42 | 5372 | location_t array_index_loc = UNKNOWN_LOCATION; |
27bf414c JM |
5373 | /* ??? Following the old parser, [ objc-receiver |
5374 | objc-message-args ] is accepted as an initializer, | |
5375 | being distinguished from a designator by what follows | |
5376 | the first assignment expression inside the square | |
5377 | brackets, but after a first array designator a | |
5378 | subsequent square bracket is for Objective-C taken to | |
5379 | start an expression, using the obsolete form of | |
5380 | designated initializer without '=', rather than | |
5381 | possibly being a second level of designation: in LALR | |
5382 | terms, the '[' is shifted rather than reducing | |
5383 | designator to designator-list. */ | |
5384 | if (des_prev == 1 && c_dialect_objc ()) | |
5385 | { | |
5386 | des_seen = des_prev; | |
5387 | break; | |
5388 | } | |
5389 | if (des_prev == 0 && c_dialect_objc ()) | |
5390 | { | |
5391 | /* This might be an array designator or an | |
5392 | Objective-C message expression. If the former, | |
5393 | continue parsing here; if the latter, parse the | |
5394 | remainder of the initializer given the starting | |
5395 | primary-expression. ??? It might make sense to | |
5396 | distinguish when des_prev == 1 as well; see | |
5397 | previous comment. */ | |
5398 | tree rec, args; | |
5399 | struct c_expr mexpr; | |
5400 | c_parser_consume_token (parser); | |
5401 | if (c_parser_peek_token (parser)->type == CPP_NAME | |
5402 | && ((c_parser_peek_token (parser)->id_kind | |
5403 | == C_ID_TYPENAME) | |
5404 | || (c_parser_peek_token (parser)->id_kind | |
5405 | == C_ID_CLASSNAME))) | |
5406 | { | |
5407 | /* Type name receiver. */ | |
5408 | tree id = c_parser_peek_token (parser)->value; | |
5409 | c_parser_consume_token (parser); | |
5410 | rec = objc_get_class_reference (id); | |
5411 | goto parse_message_args; | |
5412 | } | |
5413 | first = c_parser_expr_no_commas (parser, NULL).value; | |
ebfbbdc5 | 5414 | mark_exp_read (first); |
27bf414c JM |
5415 | if (c_parser_next_token_is (parser, CPP_ELLIPSIS) |
5416 | || c_parser_next_token_is (parser, CPP_CLOSE_SQUARE)) | |
5417 | goto array_desig_after_first; | |
5418 | /* Expression receiver. So far only one part | |
5419 | without commas has been parsed; there might be | |
5420 | more of the expression. */ | |
5421 | rec = first; | |
5422 | while (c_parser_next_token_is (parser, CPP_COMMA)) | |
5423 | { | |
f2a71bbc | 5424 | struct c_expr next; |
c2255bc4 AH |
5425 | location_t comma_loc, exp_loc; |
5426 | comma_loc = c_parser_peek_token (parser)->location; | |
27bf414c | 5427 | c_parser_consume_token (parser); |
c2255bc4 | 5428 | exp_loc = c_parser_peek_token (parser)->location; |
f2a71bbc | 5429 | next = c_parser_expr_no_commas (parser, NULL); |
267bac10 JM |
5430 | next = convert_lvalue_to_rvalue (exp_loc, next, |
5431 | true, true); | |
c2255bc4 | 5432 | rec = build_compound_expr (comma_loc, rec, next.value); |
27bf414c JM |
5433 | } |
5434 | parse_message_args: | |
5435 | /* Now parse the objc-message-args. */ | |
5436 | args = c_parser_objc_message_args (parser); | |
5437 | c_parser_skip_until_found (parser, CPP_CLOSE_SQUARE, | |
5438 | "expected %<]%>"); | |
5439 | mexpr.value | |
eb345401 | 5440 | = objc_build_message_expr (rec, args); |
27bf414c | 5441 | mexpr.original_code = ERROR_MARK; |
6866c6e8 | 5442 | mexpr.original_type = NULL; |
27bf414c JM |
5443 | /* Now parse and process the remainder of the |
5444 | initializer, starting with this message | |
5445 | expression as a primary-expression. */ | |
a1e3b3d9 | 5446 | c_parser_initval (parser, &mexpr, braced_init_obstack); |
27bf414c JM |
5447 | return; |
5448 | } | |
5449 | c_parser_consume_token (parser); | |
ea58ef42 | 5450 | array_index_loc = c_parser_peek_token (parser)->location; |
27bf414c | 5451 | first = c_parser_expr_no_commas (parser, NULL).value; |
ebfbbdc5 | 5452 | mark_exp_read (first); |
27bf414c JM |
5453 | array_desig_after_first: |
5454 | if (c_parser_next_token_is (parser, CPP_ELLIPSIS)) | |
5455 | { | |
c7412148 | 5456 | ellipsis_loc = c_parser_peek_token (parser)->location; |
27bf414c JM |
5457 | c_parser_consume_token (parser); |
5458 | second = c_parser_expr_no_commas (parser, NULL).value; | |
ebfbbdc5 | 5459 | mark_exp_read (second); |
27bf414c JM |
5460 | } |
5461 | else | |
5462 | second = NULL_TREE; | |
5463 | if (c_parser_next_token_is (parser, CPP_CLOSE_SQUARE)) | |
5464 | { | |
5465 | c_parser_consume_token (parser); | |
ea58ef42 MP |
5466 | set_init_index (array_index_loc, first, second, |
5467 | braced_init_obstack); | |
fcf73884 | 5468 | if (second) |
c1771a20 | 5469 | pedwarn (ellipsis_loc, OPT_Wpedantic, |
509c9d60 | 5470 | "ISO C forbids specifying range of elements to initialize"); |
27bf414c JM |
5471 | } |
5472 | else | |
5473 | c_parser_skip_until_found (parser, CPP_CLOSE_SQUARE, | |
5474 | "expected %<]%>"); | |
5475 | } | |
5476 | } | |
5477 | if (des_seen >= 1) | |
5478 | { | |
5479 | if (c_parser_next_token_is (parser, CPP_EQ)) | |
5480 | { | |
f3bede71 MP |
5481 | pedwarn_c90 (des_loc, OPT_Wpedantic, |
5482 | "ISO C90 forbids specifying subobject " | |
5483 | "to initialize"); | |
27bf414c JM |
5484 | c_parser_consume_token (parser); |
5485 | } | |
5486 | else | |
5487 | { | |
5488 | if (des_seen == 1) | |
c1771a20 | 5489 | pedwarn (c_parser_peek_token (parser)->location, OPT_Wpedantic, |
509c9d60 | 5490 | "obsolete use of designated initializer without %<=%>"); |
27bf414c JM |
5491 | else |
5492 | { | |
5493 | struct c_expr init; | |
913884f7 | 5494 | init.set_error (); |
27bf414c | 5495 | init.original_code = ERROR_MARK; |
6866c6e8 | 5496 | init.original_type = NULL; |
27bf414c JM |
5497 | c_parser_error (parser, "expected %<=%>"); |
5498 | c_parser_skip_until_found (parser, CPP_COMMA, NULL); | |
34cf811f MP |
5499 | process_init_element (input_location, init, false, |
5500 | braced_init_obstack); | |
27bf414c JM |
5501 | return; |
5502 | } | |
5503 | } | |
5504 | } | |
5505 | } | |
a1e3b3d9 | 5506 | c_parser_initval (parser, NULL, braced_init_obstack); |
27bf414c JM |
5507 | } |
5508 | ||
5509 | /* Parse a nested initializer; as c_parser_initializer but parses | |
5510 | initializers within braced lists, after any designators have been | |
5511 | applied. If AFTER is not NULL then it is an Objective-C message | |
5512 | expression which is the primary-expression starting the | |
5513 | initializer. */ | |
5514 | ||
5515 | static void | |
a1e3b3d9 LB |
5516 | c_parser_initval (c_parser *parser, struct c_expr *after, |
5517 | struct obstack * braced_init_obstack) | |
27bf414c JM |
5518 | { |
5519 | struct c_expr init; | |
5520 | gcc_assert (!after || c_dialect_objc ()); | |
34cf811f MP |
5521 | location_t loc = c_parser_peek_token (parser)->location; |
5522 | ||
27bf414c | 5523 | if (c_parser_next_token_is (parser, CPP_OPEN_BRACE) && !after) |
16595a1f BS |
5524 | init = c_parser_braced_init (parser, NULL_TREE, true, |
5525 | braced_init_obstack); | |
27bf414c | 5526 | else |
46bdb9cf JM |
5527 | { |
5528 | init = c_parser_expr_no_commas (parser, after); | |
5529 | if (init.value != NULL_TREE | |
5530 | && TREE_CODE (init.value) != STRING_CST | |
5531 | && TREE_CODE (init.value) != COMPOUND_LITERAL_EXPR) | |
267bac10 | 5532 | init = convert_lvalue_to_rvalue (loc, init, true, true); |
46bdb9cf | 5533 | } |
34cf811f | 5534 | process_init_element (loc, init, false, braced_init_obstack); |
27bf414c JM |
5535 | } |
5536 | ||
5537 | /* Parse a compound statement (possibly a function body) (C90 6.6.2, | |
31dc71a8 | 5538 | C99 6.8.2, C11 6.8.2). |
27bf414c JM |
5539 | |
5540 | compound-statement: | |
5541 | { block-item-list[opt] } | |
5542 | { label-declarations block-item-list } | |
5543 | ||
5544 | block-item-list: | |
5545 | block-item | |
5546 | block-item-list block-item | |
5547 | ||
5548 | block-item: | |
5549 | nested-declaration | |
5550 | statement | |
5551 | ||
5552 | nested-declaration: | |
5553 | declaration | |
5554 | ||
5555 | GNU extensions: | |
5556 | ||
5557 | compound-statement: | |
5558 | { label-declarations block-item-list } | |
5559 | ||
5560 | nested-declaration: | |
5561 | __extension__ nested-declaration | |
5562 | nested-function-definition | |
5563 | ||
5564 | label-declarations: | |
5565 | label-declaration | |
5566 | label-declarations label-declaration | |
5567 | ||
5568 | label-declaration: | |
5569 | __label__ identifier-list ; | |
5570 | ||
5571 | Allowing the mixing of declarations and code is new in C99. The | |
5572 | GNU syntax also permits (not shown above) labels at the end of | |
5573 | compound statements, which yield an error. We don't allow labels | |
5574 | on declarations; this might seem like a natural extension, but | |
783bfe5e JM |
5575 | there would be a conflict between gnu-attributes on the label and |
5576 | prefix gnu-attributes on the declaration. ??? The syntax follows the | |
27bf414c JM |
5577 | old parser in requiring something after label declarations. |
5578 | Although they are erroneous if the labels declared aren't defined, | |
953ff289 | 5579 | is it useful for the syntax to be this way? |
b8698a0f | 5580 | |
41dbbb37 TS |
5581 | OpenACC: |
5582 | ||
5583 | block-item: | |
5584 | openacc-directive | |
5585 | ||
5586 | openacc-directive: | |
5587 | update-directive | |
5588 | ||
953ff289 | 5589 | OpenMP: |
b8698a0f | 5590 | |
953ff289 DN |
5591 | block-item: |
5592 | openmp-directive | |
5593 | ||
5594 | openmp-directive: | |
5595 | barrier-directive | |
acf0174b JJ |
5596 | flush-directive |
5597 | taskwait-directive | |
5598 | taskyield-directive | |
5599 | cancel-directive | |
5600 | cancellation-point-directive */ | |
27bf414c JM |
5601 | |
5602 | static tree | |
9def91e9 | 5603 | c_parser_compound_statement (c_parser *parser, location_t *endlocp) |
27bf414c JM |
5604 | { |
5605 | tree stmt; | |
c2255bc4 AH |
5606 | location_t brace_loc; |
5607 | brace_loc = c_parser_peek_token (parser)->location; | |
27bf414c | 5608 | if (!c_parser_require (parser, CPP_OPEN_BRACE, "expected %<{%>")) |
5600f233 JM |
5609 | { |
5610 | /* Ensure a scope is entered and left anyway to avoid confusion | |
5611 | if we have just prepared to enter a function body. */ | |
5612 | stmt = c_begin_compound_stmt (true); | |
c2255bc4 | 5613 | c_end_compound_stmt (brace_loc, stmt, true); |
5600f233 JM |
5614 | return error_mark_node; |
5615 | } | |
27bf414c | 5616 | stmt = c_begin_compound_stmt (true); |
9def91e9 JJ |
5617 | location_t end_loc = c_parser_compound_statement_nostart (parser); |
5618 | if (endlocp) | |
5619 | *endlocp = end_loc; | |
36536d79 | 5620 | |
c2255bc4 | 5621 | return c_end_compound_stmt (brace_loc, stmt, true); |
27bf414c JM |
5622 | } |
5623 | ||
5624 | /* Parse a compound statement except for the opening brace. This is | |
5625 | used for parsing both compound statements and statement expressions | |
5626 | (which follow different paths to handling the opening). */ | |
5627 | ||
9def91e9 | 5628 | static location_t |
27bf414c JM |
5629 | c_parser_compound_statement_nostart (c_parser *parser) |
5630 | { | |
5631 | bool last_stmt = false; | |
5632 | bool last_label = false; | |
6ec637a4 | 5633 | bool save_valid_for_pragma = valid_location_for_stdc_pragma_p (); |
3ba09659 | 5634 | location_t label_loc = UNKNOWN_LOCATION; /* Quiet warning. */ |
27bf414c JM |
5635 | if (c_parser_next_token_is (parser, CPP_CLOSE_BRACE)) |
5636 | { | |
9def91e9 JJ |
5637 | location_t endloc = c_parser_peek_token (parser)->location; |
5638 | add_debug_begin_stmt (endloc); | |
27bf414c | 5639 | c_parser_consume_token (parser); |
9def91e9 | 5640 | return endloc; |
27bf414c | 5641 | } |
6ec637a4 | 5642 | mark_valid_location_for_stdc_pragma (true); |
27bf414c JM |
5643 | if (c_parser_next_token_is_keyword (parser, RID_LABEL)) |
5644 | { | |
5645 | /* Read zero or more forward-declarations for labels that nested | |
5646 | functions can jump to. */ | |
6ec637a4 | 5647 | mark_valid_location_for_stdc_pragma (false); |
27bf414c JM |
5648 | while (c_parser_next_token_is_keyword (parser, RID_LABEL)) |
5649 | { | |
c2255bc4 | 5650 | label_loc = c_parser_peek_token (parser)->location; |
27bf414c JM |
5651 | c_parser_consume_token (parser); |
5652 | /* Any identifiers, including those declared as type names, | |
5653 | are OK here. */ | |
5654 | while (true) | |
5655 | { | |
5656 | tree label; | |
5657 | if (c_parser_next_token_is_not (parser, CPP_NAME)) | |
5658 | { | |
5659 | c_parser_error (parser, "expected identifier"); | |
5660 | break; | |
5661 | } | |
5662 | label | |
5663 | = declare_label (c_parser_peek_token (parser)->value); | |
5664 | C_DECLARED_LABEL_FLAG (label) = 1; | |
c2255bc4 | 5665 | add_stmt (build_stmt (label_loc, DECL_EXPR, label)); |
27bf414c JM |
5666 | c_parser_consume_token (parser); |
5667 | if (c_parser_next_token_is (parser, CPP_COMMA)) | |
5668 | c_parser_consume_token (parser); | |
5669 | else | |
5670 | break; | |
5671 | } | |
5672 | c_parser_skip_until_found (parser, CPP_SEMICOLON, "expected %<;%>"); | |
5673 | } | |
c1771a20 | 5674 | pedwarn (label_loc, OPT_Wpedantic, "ISO C forbids label declarations"); |
27bf414c JM |
5675 | } |
5676 | /* We must now have at least one statement, label or declaration. */ | |
5677 | if (c_parser_next_token_is (parser, CPP_CLOSE_BRACE)) | |
5678 | { | |
6ec637a4 | 5679 | mark_valid_location_for_stdc_pragma (save_valid_for_pragma); |
27bf414c | 5680 | c_parser_error (parser, "expected declaration or statement"); |
9def91e9 | 5681 | location_t endloc = c_parser_peek_token (parser)->location; |
27bf414c | 5682 | c_parser_consume_token (parser); |
9def91e9 | 5683 | return endloc; |
27bf414c JM |
5684 | } |
5685 | while (c_parser_next_token_is_not (parser, CPP_CLOSE_BRACE)) | |
5686 | { | |
5687 | location_t loc = c_parser_peek_token (parser)->location; | |
2be4dfcb | 5688 | loc = expansion_point_location_if_in_system_header (loc); |
4e03c3a7 JM |
5689 | /* Standard attributes may start a statement or a declaration. */ |
5690 | bool have_std_attrs | |
5691 | = c_parser_nth_token_starts_std_attributes (parser, 1); | |
5692 | tree std_attrs = NULL_TREE; | |
5693 | if (have_std_attrs) | |
5694 | std_attrs = c_parser_std_attribute_specifier_sequence (parser); | |
27bf414c JM |
5695 | if (c_parser_next_token_is_keyword (parser, RID_CASE) |
5696 | || c_parser_next_token_is_keyword (parser, RID_DEFAULT) | |
5697 | || (c_parser_next_token_is (parser, CPP_NAME) | |
5698 | && c_parser_peek_2nd_token (parser)->type == CPP_COLON)) | |
5699 | { | |
4e03c3a7 | 5700 | c_warn_unused_attributes (std_attrs); |
c7412148 TT |
5701 | if (c_parser_next_token_is_keyword (parser, RID_CASE)) |
5702 | label_loc = c_parser_peek_2nd_token (parser)->location; | |
5703 | else | |
5704 | label_loc = c_parser_peek_token (parser)->location; | |
27bf414c JM |
5705 | last_label = true; |
5706 | last_stmt = false; | |
6ec637a4 | 5707 | mark_valid_location_for_stdc_pragma (false); |
27bf414c JM |
5708 | c_parser_label (parser); |
5709 | } | |
5710 | else if (!last_label | |
4e03c3a7 JM |
5711 | && (c_parser_next_tokens_start_declaration (parser) |
5712 | || (have_std_attrs | |
5713 | && c_parser_next_token_is (parser, CPP_SEMICOLON)))) | |
27bf414c JM |
5714 | { |
5715 | last_label = false; | |
6ec637a4 | 5716 | mark_valid_location_for_stdc_pragma (false); |
81fea426 | 5717 | bool fallthru_attr_p = false; |
4e03c3a7 JM |
5718 | c_parser_declaration_or_fndef (parser, true, !have_std_attrs, |
5719 | true, true, true, NULL, | |
5720 | vNULL, have_std_attrs, std_attrs, | |
5721 | NULL, &fallthru_attr_p); | |
81fea426 | 5722 | if (last_stmt && !fallthru_attr_p) |
177cce46 | 5723 | pedwarn_c90 (loc, OPT_Wdeclaration_after_statement, |
509c9d60 | 5724 | "ISO C90 forbids mixed declarations and code"); |
81fea426 | 5725 | last_stmt = fallthru_attr_p; |
27bf414c JM |
5726 | } |
5727 | else if (!last_label | |
5728 | && c_parser_next_token_is_keyword (parser, RID_EXTENSION)) | |
5729 | { | |
5730 | /* __extension__ can start a declaration, but is also an | |
5731 | unary operator that can start an expression. Consume all | |
5732 | but the last of a possible series of __extension__ to | |
4e03c3a7 JM |
5733 | determine which. If standard attributes have already |
5734 | been seen, it must start a statement, not a declaration, | |
5735 | but standard attributes starting a declaration may appear | |
5736 | after __extension__. */ | |
27bf414c JM |
5737 | while (c_parser_peek_2nd_token (parser)->type == CPP_KEYWORD |
5738 | && (c_parser_peek_2nd_token (parser)->keyword | |
5739 | == RID_EXTENSION)) | |
5740 | c_parser_consume_token (parser); | |
4e03c3a7 JM |
5741 | if (!have_std_attrs |
5742 | && (c_token_starts_declaration (c_parser_peek_2nd_token (parser)) | |
5743 | || c_parser_nth_token_starts_std_attributes (parser, 2))) | |
27bf414c JM |
5744 | { |
5745 | int ext; | |
5746 | ext = disable_extension_diagnostics (); | |
5747 | c_parser_consume_token (parser); | |
5748 | last_label = false; | |
6ec637a4 | 5749 | mark_valid_location_for_stdc_pragma (false); |
32912286 | 5750 | c_parser_declaration_or_fndef (parser, true, true, true, true, |
acf0174b | 5751 | true, NULL, vNULL); |
27bf414c JM |
5752 | /* Following the old parser, __extension__ does not |
5753 | disable this diagnostic. */ | |
5754 | restore_extension_diagnostics (ext); | |
fcf73884 | 5755 | if (last_stmt) |
177cce46 | 5756 | pedwarn_c90 (loc, OPT_Wdeclaration_after_statement, |
509c9d60 | 5757 | "ISO C90 forbids mixed declarations and code"); |
27bf414c JM |
5758 | last_stmt = false; |
5759 | } | |
5760 | else | |
5761 | goto statement; | |
5762 | } | |
bc4071dd RH |
5763 | else if (c_parser_next_token_is (parser, CPP_PRAGMA)) |
5764 | { | |
4e03c3a7 JM |
5765 | if (have_std_attrs) |
5766 | c_parser_error (parser, "expected declaration or statement"); | |
bc4071dd RH |
5767 | /* External pragmas, and some omp pragmas, are not associated |
5768 | with regular c code, and so are not to be considered statements | |
5769 | syntactically. This ensures that the user doesn't put them | |
5770 | places that would turn into syntax errors if the directive | |
5771 | were ignored. */ | |
aec17bfe | 5772 | if (c_parser_pragma (parser, |
dda1bf61 JJ |
5773 | last_label ? pragma_stmt : pragma_compound, |
5774 | NULL)) | |
bc4071dd RH |
5775 | last_label = false, last_stmt = true; |
5776 | } | |
5777 | else if (c_parser_next_token_is (parser, CPP_EOF)) | |
5778 | { | |
6ec637a4 | 5779 | mark_valid_location_for_stdc_pragma (save_valid_for_pragma); |
bc4071dd | 5780 | c_parser_error (parser, "expected declaration or statement"); |
9def91e9 | 5781 | return c_parser_peek_token (parser)->location; |
bc4071dd | 5782 | } |
b4b56033 MLI |
5783 | else if (c_parser_next_token_is_keyword (parser, RID_ELSE)) |
5784 | { | |
b8698a0f | 5785 | if (parser->in_if_block) |
b4b56033 | 5786 | { |
6ec637a4 | 5787 | mark_valid_location_for_stdc_pragma (save_valid_for_pragma); |
92fa0f9e | 5788 | error_at (loc, "expected %<}%> before %<else%>"); |
9def91e9 | 5789 | return c_parser_peek_token (parser)->location; |
b4b56033 | 5790 | } |
b8698a0f | 5791 | else |
b4b56033 | 5792 | { |
3ba09659 | 5793 | error_at (loc, "%<else%> without a previous %<if%>"); |
b4b56033 MLI |
5794 | c_parser_consume_token (parser); |
5795 | continue; | |
5796 | } | |
5797 | } | |
27bf414c JM |
5798 | else |
5799 | { | |
5800 | statement: | |
4e03c3a7 | 5801 | c_warn_unused_attributes (std_attrs); |
27bf414c JM |
5802 | last_label = false; |
5803 | last_stmt = true; | |
6ec637a4 | 5804 | mark_valid_location_for_stdc_pragma (false); |
99cd9857 | 5805 | c_parser_statement_after_labels (parser, NULL); |
27bf414c | 5806 | } |
2c14ae9a VR |
5807 | |
5808 | parser->error = false; | |
27bf414c JM |
5809 | } |
5810 | if (last_label) | |
3ba09659 | 5811 | error_at (label_loc, "label at end of compound statement"); |
9def91e9 | 5812 | location_t endloc = c_parser_peek_token (parser)->location; |
27bf414c | 5813 | c_parser_consume_token (parser); |
6ec637a4 JJ |
5814 | /* Restore the value we started with. */ |
5815 | mark_valid_location_for_stdc_pragma (save_valid_for_pragma); | |
9def91e9 | 5816 | return endloc; |
27bf414c JM |
5817 | } |
5818 | ||
4e03c3a7 JM |
5819 | /* Parse all consecutive labels, possibly preceded by standard |
5820 | attributes. In this context, a statement is required, not a | |
5821 | declaration, so attributes must be followed by a statement that is | |
5822 | not just a semicolon. */ | |
74d98c1e AB |
5823 | |
5824 | static void | |
5825 | c_parser_all_labels (c_parser *parser) | |
5826 | { | |
4e03c3a7 JM |
5827 | if (c_parser_nth_token_starts_std_attributes (parser, 1)) |
5828 | { | |
5829 | tree std_attrs = c_parser_std_attribute_specifier_sequence (parser); | |
5830 | if (c_parser_next_token_is (parser, CPP_SEMICOLON)) | |
5831 | c_parser_error (parser, "expected statement"); | |
5832 | else | |
5833 | c_warn_unused_attributes (std_attrs); | |
5834 | } | |
74d98c1e AB |
5835 | while (c_parser_next_token_is_keyword (parser, RID_CASE) |
5836 | || c_parser_next_token_is_keyword (parser, RID_DEFAULT) | |
5837 | || (c_parser_next_token_is (parser, CPP_NAME) | |
5838 | && c_parser_peek_2nd_token (parser)->type == CPP_COLON)) | |
5839 | c_parser_label (parser); | |
5840 | } | |
5841 | ||
31dc71a8 | 5842 | /* Parse a label (C90 6.6.1, C99 6.8.1, C11 6.8.1). |
27bf414c JM |
5843 | |
5844 | label: | |
783bfe5e | 5845 | identifier : gnu-attributes[opt] |
27bf414c JM |
5846 | case constant-expression : |
5847 | default : | |
5848 | ||
5849 | GNU extensions: | |
5850 | ||
5851 | label: | |
5852 | case constant-expression ... constant-expression : | |
5853 | ||
783bfe5e | 5854 | The use of gnu-attributes on labels is a GNU extension. The syntax in |
27bf414c | 5855 | GNU C accepts any expressions without commas, non-constant |
4e03c3a7 JM |
5856 | expressions being rejected later. Any standard |
5857 | attribute-specifier-sequence before the first label has been parsed | |
5858 | in the caller, to distinguish statements from declarations. Any | |
5859 | attribute-specifier-sequence after the label is parsed in this | |
5860 | function. */ | |
27bf414c JM |
5861 | |
5862 | static void | |
5863 | c_parser_label (c_parser *parser) | |
5864 | { | |
5865 | location_t loc1 = c_parser_peek_token (parser)->location; | |
5866 | tree label = NULL_TREE; | |
81fea426 MP |
5867 | |
5868 | /* Remember whether this case or a user-defined label is allowed to fall | |
5869 | through to. */ | |
5870 | bool fallthrough_p = c_parser_peek_token (parser)->flags & PREV_FALLTHROUGH; | |
5871 | ||
27bf414c JM |
5872 | if (c_parser_next_token_is_keyword (parser, RID_CASE)) |
5873 | { | |
5874 | tree exp1, exp2; | |
5875 | c_parser_consume_token (parser); | |
5876 | exp1 = c_parser_expr_no_commas (parser, NULL).value; | |
5877 | if (c_parser_next_token_is (parser, CPP_COLON)) | |
5878 | { | |
5879 | c_parser_consume_token (parser); | |
c2255bc4 | 5880 | label = do_case (loc1, exp1, NULL_TREE); |
27bf414c JM |
5881 | } |
5882 | else if (c_parser_next_token_is (parser, CPP_ELLIPSIS)) | |
5883 | { | |
5884 | c_parser_consume_token (parser); | |
5885 | exp2 = c_parser_expr_no_commas (parser, NULL).value; | |
5886 | if (c_parser_require (parser, CPP_COLON, "expected %<:%>")) | |
c2255bc4 | 5887 | label = do_case (loc1, exp1, exp2); |
27bf414c JM |
5888 | } |
5889 | else | |
5890 | c_parser_error (parser, "expected %<:%> or %<...%>"); | |
5891 | } | |
5892 | else if (c_parser_next_token_is_keyword (parser, RID_DEFAULT)) | |
5893 | { | |
5894 | c_parser_consume_token (parser); | |
5895 | if (c_parser_require (parser, CPP_COLON, "expected %<:%>")) | |
c2255bc4 | 5896 | label = do_case (loc1, NULL_TREE, NULL_TREE); |
27bf414c JM |
5897 | } |
5898 | else | |
5899 | { | |
5900 | tree name = c_parser_peek_token (parser)->value; | |
5901 | tree tlab; | |
27bf414c | 5902 | tree attrs; |
c7412148 | 5903 | location_t loc2 = c_parser_peek_token (parser)->location; |
27bf414c JM |
5904 | gcc_assert (c_parser_next_token_is (parser, CPP_NAME)); |
5905 | c_parser_consume_token (parser); | |
5906 | gcc_assert (c_parser_next_token_is (parser, CPP_COLON)); | |
27bf414c | 5907 | c_parser_consume_token (parser); |
783bfe5e | 5908 | attrs = c_parser_gnu_attributes (parser); |
27bf414c JM |
5909 | tlab = define_label (loc2, name); |
5910 | if (tlab) | |
5911 | { | |
5912 | decl_attributes (&tlab, attrs, 0); | |
c2255bc4 | 5913 | label = add_stmt (build_stmt (loc1, LABEL_EXPR, tlab)); |
27bf414c JM |
5914 | } |
5915 | } | |
5916 | if (label) | |
3d57f0f0 | 5917 | { |
81fea426 MP |
5918 | if (TREE_CODE (label) == LABEL_EXPR) |
5919 | FALLTHROUGH_LABEL_P (LABEL_EXPR_LABEL (label)) = fallthrough_p; | |
5920 | else | |
5921 | FALLTHROUGH_LABEL_P (CASE_LABEL (label)) = fallthrough_p; | |
5922 | ||
4e03c3a7 JM |
5923 | /* Standard attributes are only allowed here if they start a |
5924 | statement, not a declaration (including the case of an | |
5925 | attribute-declaration with only attributes). */ | |
5926 | bool have_std_attrs | |
5927 | = c_parser_nth_token_starts_std_attributes (parser, 1); | |
5928 | tree std_attrs = NULL_TREE; | |
5929 | if (have_std_attrs) | |
5930 | std_attrs = c_parser_std_attribute_specifier_sequence (parser); | |
5931 | ||
81fea426 | 5932 | /* Allow '__attribute__((fallthrough));'. */ |
4e03c3a7 JM |
5933 | if (!have_std_attrs |
5934 | && c_parser_next_token_is_keyword (parser, RID_ATTRIBUTE)) | |
81fea426 MP |
5935 | { |
5936 | location_t loc = c_parser_peek_token (parser)->location; | |
783bfe5e | 5937 | tree attrs = c_parser_gnu_attributes (parser); |
81fea426 MP |
5938 | if (attribute_fallthrough_p (attrs)) |
5939 | { | |
5940 | if (c_parser_next_token_is (parser, CPP_SEMICOLON)) | |
5941 | { | |
5942 | tree fn = build_call_expr_internal_loc (loc, | |
5943 | IFN_FALLTHROUGH, | |
5944 | void_type_node, 0); | |
5945 | add_stmt (fn); | |
5946 | } | |
5947 | else | |
5948 | warning_at (loc, OPT_Wattributes, "%<fallthrough%> attribute " | |
5949 | "not followed by %<;%>"); | |
5950 | } | |
5951 | else if (attrs != NULL_TREE) | |
5952 | warning_at (loc, OPT_Wattributes, "only attribute %<fallthrough%>" | |
5953 | " can be applied to a null statement"); | |
5954 | } | |
4e03c3a7 JM |
5955 | if (c_parser_next_tokens_start_declaration (parser) |
5956 | || (have_std_attrs | |
5957 | && c_parser_next_token_is (parser, CPP_SEMICOLON))) | |
3d57f0f0 | 5958 | { |
3ba09659 AH |
5959 | error_at (c_parser_peek_token (parser)->location, |
5960 | "a label can only be part of a statement and " | |
5961 | "a declaration is not a statement"); | |
b8698a0f | 5962 | c_parser_declaration_or_fndef (parser, /*fndef_ok*/ false, |
32912286 | 5963 | /*static_assert_ok*/ true, |
6265d07c | 5964 | /*empty_ok*/ true, /*nested*/ true, |
acf0174b | 5965 | /*start_attr_ok*/ true, NULL, |
4e03c3a7 | 5966 | vNULL, have_std_attrs, std_attrs); |
3d57f0f0 | 5967 | } |
4e03c3a7 JM |
5968 | else if (std_attrs) |
5969 | /* Nonempty attributes on the following statement are ignored. */ | |
5970 | c_warn_unused_attributes (std_attrs); | |
3d57f0f0 | 5971 | } |
27bf414c JM |
5972 | } |
5973 | ||
31dc71a8 | 5974 | /* Parse a statement (C90 6.6, C99 6.8, C11 6.8). |
27bf414c JM |
5975 | |
5976 | statement: | |
5977 | labeled-statement | |
4e03c3a7 | 5978 | attribute-specifier-sequence[opt] compound-statement |
27bf414c | 5979 | expression-statement |
4e03c3a7 JM |
5980 | attribute-specifier-sequence[opt] selection-statement |
5981 | attribute-specifier-sequence[opt] iteration-statement | |
5982 | attribute-specifier-sequence[opt] jump-statement | |
27bf414c JM |
5983 | |
5984 | labeled-statement: | |
4e03c3a7 | 5985 | attribute-specifier-sequence[opt] label statement |
27bf414c JM |
5986 | |
5987 | expression-statement: | |
5988 | expression[opt] ; | |
4e03c3a7 | 5989 | attribute-specifier-sequence expression ; |
27bf414c JM |
5990 | |
5991 | selection-statement: | |
5992 | if-statement | |
5993 | switch-statement | |
5994 | ||
5995 | iteration-statement: | |
5996 | while-statement | |
5997 | do-statement | |
5998 | for-statement | |
5999 | ||
6000 | jump-statement: | |
6001 | goto identifier ; | |
6002 | continue ; | |
6003 | break ; | |
6004 | return expression[opt] ; | |
6005 | ||
6006 | GNU extensions: | |
6007 | ||
6008 | statement: | |
4e03c3a7 | 6009 | attribute-specifier-sequence[opt] asm-statement |
27bf414c JM |
6010 | |
6011 | jump-statement: | |
6012 | goto * expression ; | |
6013 | ||
81fea426 | 6014 | expression-statement: |
783bfe5e | 6015 | gnu-attributes ; |
81fea426 | 6016 | |
27bf414c JM |
6017 | Objective-C: |
6018 | ||
6019 | statement: | |
4e03c3a7 JM |
6020 | attribute-specifier-sequence[opt] objc-throw-statement |
6021 | attribute-specifier-sequence[opt] objc-try-catch-statement | |
6022 | attribute-specifier-sequence[opt] objc-synchronized-statement | |
27bf414c JM |
6023 | |
6024 | objc-throw-statement: | |
6025 | @throw expression ; | |
6026 | @throw ; | |
953ff289 | 6027 | |
41dbbb37 TS |
6028 | OpenACC: |
6029 | ||
6030 | statement: | |
4e03c3a7 | 6031 | attribute-specifier-sequence[opt] openacc-construct |
41dbbb37 TS |
6032 | |
6033 | openacc-construct: | |
6034 | parallel-construct | |
6035 | kernels-construct | |
6036 | data-construct | |
6037 | loop-construct | |
6038 | ||
6039 | parallel-construct: | |
6040 | parallel-directive structured-block | |
6041 | ||
6042 | kernels-construct: | |
6043 | kernels-directive structured-block | |
6044 | ||
6045 | data-construct: | |
6046 | data-directive structured-block | |
6047 | ||
6048 | loop-construct: | |
6049 | loop-directive structured-block | |
6050 | ||
953ff289 DN |
6051 | OpenMP: |
6052 | ||
6053 | statement: | |
4e03c3a7 | 6054 | attribute-specifier-sequence[opt] openmp-construct |
953ff289 DN |
6055 | |
6056 | openmp-construct: | |
6057 | parallel-construct | |
6058 | for-construct | |
acf0174b JJ |
6059 | simd-construct |
6060 | for-simd-construct | |
953ff289 DN |
6061 | sections-construct |
6062 | single-construct | |
6063 | parallel-for-construct | |
acf0174b | 6064 | parallel-for-simd-construct |
953ff289 DN |
6065 | parallel-sections-construct |
6066 | master-construct | |
6067 | critical-construct | |
6068 | atomic-construct | |
6069 | ordered-construct | |
6070 | ||
6071 | parallel-construct: | |
6072 | parallel-directive structured-block | |
6073 | ||
6074 | for-construct: | |
6075 | for-directive iteration-statement | |
6076 | ||
acf0174b JJ |
6077 | simd-construct: |
6078 | simd-directive iteration-statements | |
6079 | ||
6080 | for-simd-construct: | |
6081 | for-simd-directive iteration-statements | |
6082 | ||
953ff289 DN |
6083 | sections-construct: |
6084 | sections-directive section-scope | |
6085 | ||
6086 | single-construct: | |
6087 | single-directive structured-block | |
6088 | ||
6089 | parallel-for-construct: | |
6090 | parallel-for-directive iteration-statement | |
6091 | ||
acf0174b JJ |
6092 | parallel-for-simd-construct: |
6093 | parallel-for-simd-directive iteration-statement | |
6094 | ||
953ff289 DN |
6095 | parallel-sections-construct: |
6096 | parallel-sections-directive section-scope | |
6097 | ||
6098 | master-construct: | |
6099 | master-directive structured-block | |
6100 | ||
6101 | critical-construct: | |
6102 | critical-directive structured-block | |
6103 | ||
6104 | atomic-construct: | |
6105 | atomic-directive expression-statement | |
6106 | ||
6107 | ordered-construct: | |
0a35513e AH |
6108 | ordered-directive structured-block |
6109 | ||
6110 | Transactional Memory: | |
6111 | ||
6112 | statement: | |
4e03c3a7 JM |
6113 | attribute-specifier-sequence[opt] transaction-statement |
6114 | attribute-specifier-sequence[opt] transaction-cancel-statement | |
99cd9857 MP |
6115 | |
6116 | IF_P is used to track whether there's a (possibly labeled) if statement | |
6117 | which is not enclosed in braces and has an else clause. This is used to | |
6118 | implement -Wparentheses. */ | |
27bf414c JM |
6119 | |
6120 | static void | |
3e2becc4 | 6121 | c_parser_statement (c_parser *parser, bool *if_p, location_t *loc_after_labels) |
27bf414c | 6122 | { |
74d98c1e | 6123 | c_parser_all_labels (parser); |
3e2becc4 MP |
6124 | if (loc_after_labels) |
6125 | *loc_after_labels = c_parser_peek_token (parser)->location; | |
99cd9857 | 6126 | c_parser_statement_after_labels (parser, if_p, NULL); |
27bf414c JM |
6127 | } |
6128 | ||
3e3b8d63 | 6129 | /* Parse a statement, other than a labeled statement. CHAIN is a vector |
4e03c3a7 JM |
6130 | of if-else-if conditions. All labels and standard attributes have |
6131 | been parsed in the caller. | |
99cd9857 MP |
6132 | |
6133 | IF_P is used to track whether there's a (possibly labeled) if statement | |
6134 | which is not enclosed in braces and has an else clause. This is used to | |
6135 | implement -Wparentheses. */ | |
27bf414c JM |
6136 | |
6137 | static void | |
99cd9857 MP |
6138 | c_parser_statement_after_labels (c_parser *parser, bool *if_p, |
6139 | vec<tree> *chain) | |
27bf414c JM |
6140 | { |
6141 | location_t loc = c_parser_peek_token (parser)->location; | |
6142 | tree stmt = NULL_TREE; | |
b4b56033 MLI |
6143 | bool in_if_block = parser->in_if_block; |
6144 | parser->in_if_block = false; | |
99cd9857 MP |
6145 | if (if_p != NULL) |
6146 | *if_p = false; | |
96a95ac1 AO |
6147 | |
6148 | if (c_parser_peek_token (parser)->type != CPP_OPEN_BRACE) | |
6149 | add_debug_begin_stmt (loc); | |
6150 | ||
27bf414c JM |
6151 | switch (c_parser_peek_token (parser)->type) |
6152 | { | |
6153 | case CPP_OPEN_BRACE: | |
6154 | add_stmt (c_parser_compound_statement (parser)); | |
6155 | break; | |
6156 | case CPP_KEYWORD: | |
6157 | switch (c_parser_peek_token (parser)->keyword) | |
6158 | { | |
6159 | case RID_IF: | |
99cd9857 | 6160 | c_parser_if_statement (parser, if_p, chain); |
27bf414c JM |
6161 | break; |
6162 | case RID_SWITCH: | |
351f85c5 | 6163 | c_parser_switch_statement (parser, if_p); |
27bf414c JM |
6164 | break; |
6165 | case RID_WHILE: | |
170a8bd6 | 6166 | c_parser_while_statement (parser, false, 0, if_p); |
27bf414c JM |
6167 | break; |
6168 | case RID_DO: | |
170a8bd6 | 6169 | c_parser_do_statement (parser, 0, false); |
27bf414c JM |
6170 | break; |
6171 | case RID_FOR: | |
170a8bd6 | 6172 | c_parser_for_statement (parser, false, 0, if_p); |
27bf414c JM |
6173 | break; |
6174 | case RID_GOTO: | |
6175 | c_parser_consume_token (parser); | |
6176 | if (c_parser_next_token_is (parser, CPP_NAME)) | |
6177 | { | |
c2255bc4 AH |
6178 | stmt = c_finish_goto_label (loc, |
6179 | c_parser_peek_token (parser)->value); | |
27bf414c JM |
6180 | c_parser_consume_token (parser); |
6181 | } | |
6182 | else if (c_parser_next_token_is (parser, CPP_MULT)) | |
6183 | { | |
267bac10 | 6184 | struct c_expr val; |
84628aa8 | 6185 | |
27bf414c | 6186 | c_parser_consume_token (parser); |
267bac10 JM |
6187 | val = c_parser_expression (parser); |
6188 | val = convert_lvalue_to_rvalue (loc, val, false, true); | |
6189 | stmt = c_finish_goto_ptr (loc, val.value); | |
27bf414c JM |
6190 | } |
6191 | else | |
6192 | c_parser_error (parser, "expected identifier or %<*%>"); | |
6193 | goto expect_semicolon; | |
6194 | case RID_CONTINUE: | |
6195 | c_parser_consume_token (parser); | |
c2255bc4 | 6196 | stmt = c_finish_bc_stmt (loc, &c_cont_label, false); |
27bf414c JM |
6197 | goto expect_semicolon; |
6198 | case RID_BREAK: | |
6199 | c_parser_consume_token (parser); | |
c2255bc4 | 6200 | stmt = c_finish_bc_stmt (loc, &c_break_label, true); |
27bf414c JM |
6201 | goto expect_semicolon; |
6202 | case RID_RETURN: | |
6203 | c_parser_consume_token (parser); | |
6204 | if (c_parser_next_token_is (parser, CPP_SEMICOLON)) | |
6205 | { | |
c2255bc4 | 6206 | stmt = c_finish_return (loc, NULL_TREE, NULL_TREE); |
27bf414c JM |
6207 | c_parser_consume_token (parser); |
6208 | } | |
6209 | else | |
6210 | { | |
6e07c515 | 6211 | location_t xloc = c_parser_peek_token (parser)->location; |
bbbbb16a | 6212 | struct c_expr expr = c_parser_expression_conv (parser); |
ebfbbdc5 | 6213 | mark_exp_read (expr.value); |
94c40e19 DM |
6214 | stmt = c_finish_return (EXPR_LOC_OR_LOC (expr.value, xloc), |
6215 | expr.value, expr.original_type); | |
27bf414c JM |
6216 | goto expect_semicolon; |
6217 | } | |
6218 | break; | |
6219 | case RID_ASM: | |
6220 | stmt = c_parser_asm_statement (parser); | |
6221 | break; | |
0a35513e AH |
6222 | case RID_TRANSACTION_ATOMIC: |
6223 | case RID_TRANSACTION_RELAXED: | |
6224 | stmt = c_parser_transaction (parser, | |
6225 | c_parser_peek_token (parser)->keyword); | |
6226 | break; | |
6227 | case RID_TRANSACTION_CANCEL: | |
6228 | stmt = c_parser_transaction_cancel (parser); | |
6229 | goto expect_semicolon; | |
49b91f05 | 6230 | case RID_AT_THROW: |
27bf414c JM |
6231 | gcc_assert (c_dialect_objc ()); |
6232 | c_parser_consume_token (parser); | |
6233 | if (c_parser_next_token_is (parser, CPP_SEMICOLON)) | |
6234 | { | |
c2255bc4 | 6235 | stmt = objc_build_throw_stmt (loc, NULL_TREE); |
27bf414c JM |
6236 | c_parser_consume_token (parser); |
6237 | } | |
6238 | else | |
6239 | { | |
267bac10 JM |
6240 | struct c_expr expr = c_parser_expression (parser); |
6241 | expr = convert_lvalue_to_rvalue (loc, expr, false, false); | |
5e9d6aa4 JK |
6242 | expr.value = c_fully_fold (expr.value, false, NULL); |
6243 | stmt = objc_build_throw_stmt (loc, expr.value); | |
27bf414c JM |
6244 | goto expect_semicolon; |
6245 | } | |
6246 | break; | |
49b91f05 | 6247 | case RID_AT_TRY: |
27bf414c | 6248 | gcc_assert (c_dialect_objc ()); |
437c2322 | 6249 | c_parser_objc_try_catch_finally_statement (parser); |
27bf414c JM |
6250 | break; |
6251 | case RID_AT_SYNCHRONIZED: | |
6252 | gcc_assert (c_dialect_objc ()); | |
6253 | c_parser_objc_synchronized_statement (parser); | |
6254 | break; | |
81fea426 MP |
6255 | case RID_ATTRIBUTE: |
6256 | { | |
6257 | /* Allow '__attribute__((fallthrough));'. */ | |
783bfe5e | 6258 | tree attrs = c_parser_gnu_attributes (parser); |
81fea426 MP |
6259 | if (attribute_fallthrough_p (attrs)) |
6260 | { | |
6261 | if (c_parser_next_token_is (parser, CPP_SEMICOLON)) | |
6262 | { | |
6263 | tree fn = build_call_expr_internal_loc (loc, | |
6264 | IFN_FALLTHROUGH, | |
6265 | void_type_node, 0); | |
6266 | add_stmt (fn); | |
6267 | /* Eat the ';'. */ | |
6268 | c_parser_consume_token (parser); | |
6269 | } | |
6270 | else | |
6271 | warning_at (loc, OPT_Wattributes, | |
6272 | "%<fallthrough%> attribute not followed " | |
6273 | "by %<;%>"); | |
6274 | } | |
6275 | else if (attrs != NULL_TREE) | |
6276 | warning_at (loc, OPT_Wattributes, "only attribute %<fallthrough%>" | |
6277 | " can be applied to a null statement"); | |
6278 | break; | |
6279 | } | |
27bf414c JM |
6280 | default: |
6281 | goto expr_stmt; | |
6282 | } | |
6283 | break; | |
6284 | case CPP_SEMICOLON: | |
6285 | c_parser_consume_token (parser); | |
6286 | break; | |
6287 | case CPP_CLOSE_PAREN: | |
6288 | case CPP_CLOSE_SQUARE: | |
6289 | /* Avoid infinite loop in error recovery: | |
6290 | c_parser_skip_until_found stops at a closing nesting | |
6291 | delimiter without consuming it, but here we need to consume | |
6292 | it to proceed further. */ | |
6293 | c_parser_error (parser, "expected statement"); | |
6294 | c_parser_consume_token (parser); | |
6295 | break; | |
bc4071dd | 6296 | case CPP_PRAGMA: |
dda1bf61 | 6297 | c_parser_pragma (parser, pragma_stmt, if_p); |
bc4071dd | 6298 | break; |
27bf414c JM |
6299 | default: |
6300 | expr_stmt: | |
c2255bc4 | 6301 | stmt = c_finish_expr_stmt (loc, c_parser_expression_conv (parser).value); |
27bf414c JM |
6302 | expect_semicolon: |
6303 | c_parser_skip_until_found (parser, CPP_SEMICOLON, "expected %<;%>"); | |
6304 | break; | |
6305 | } | |
6306 | /* Two cases cannot and do not have line numbers associated: If stmt | |
6307 | is degenerate, such as "2;", then stmt is an INTEGER_CST, which | |
6308 | cannot hold line numbers. But that's OK because the statement | |
6309 | will either be changed to a MODIFY_EXPR during gimplification of | |
6310 | the statement expr, or discarded. If stmt was compound, but | |
6311 | without new variables, we will have skipped the creation of a | |
6312 | BIND and will have a bare STATEMENT_LIST. But that's OK because | |
6313 | (recursively) all of the component statements should already have | |
6314 | line numbers assigned. ??? Can we discard no-op statements | |
6315 | earlier? */ | |
21ba0cea MP |
6316 | if (EXPR_LOCATION (stmt) == UNKNOWN_LOCATION) |
6317 | protected_set_expr_location (stmt, loc); | |
b4b56033 MLI |
6318 | |
6319 | parser->in_if_block = in_if_block; | |
27bf414c JM |
6320 | } |
6321 | ||
ca085fd7 MLI |
6322 | /* Parse the condition from an if, do, while or for statements. */ |
6323 | ||
6324 | static tree | |
6325 | c_parser_condition (c_parser *parser) | |
6326 | { | |
c2255bc4 | 6327 | location_t loc = c_parser_peek_token (parser)->location; |
ca085fd7 | 6328 | tree cond; |
928c19bb JM |
6329 | cond = c_parser_expression_conv (parser).value; |
6330 | cond = c_objc_common_truthvalue_conversion (loc, cond); | |
6331 | cond = c_fully_fold (cond, false, NULL); | |
ca085fd7 MLI |
6332 | if (warn_sequence_point) |
6333 | verify_sequence_points (cond); | |
6334 | return cond; | |
6335 | } | |
6336 | ||
27bf414c JM |
6337 | /* Parse a parenthesized condition from an if, do or while statement. |
6338 | ||
6339 | condition: | |
6340 | ( expression ) | |
6341 | */ | |
6342 | static tree | |
6343 | c_parser_paren_condition (c_parser *parser) | |
6344 | { | |
27bf414c | 6345 | tree cond; |
32129a17 DM |
6346 | matching_parens parens; |
6347 | if (!parens.require_open (parser)) | |
27bf414c | 6348 | return error_mark_node; |
ca085fd7 | 6349 | cond = c_parser_condition (parser); |
32129a17 | 6350 | parens.skip_until_found_close (parser); |
27bf414c JM |
6351 | return cond; |
6352 | } | |
6353 | ||
99cd9857 MP |
6354 | /* Parse a statement which is a block in C99. |
6355 | ||
6356 | IF_P is used to track whether there's a (possibly labeled) if statement | |
6357 | which is not enclosed in braces and has an else clause. This is used to | |
6358 | implement -Wparentheses. */ | |
27bf414c JM |
6359 | |
6360 | static tree | |
3e2becc4 MP |
6361 | c_parser_c99_block_statement (c_parser *parser, bool *if_p, |
6362 | location_t *loc_after_labels) | |
27bf414c JM |
6363 | { |
6364 | tree block = c_begin_compound_stmt (flag_isoc99); | |
c2255bc4 | 6365 | location_t loc = c_parser_peek_token (parser)->location; |
3e2becc4 | 6366 | c_parser_statement (parser, if_p, loc_after_labels); |
c2255bc4 | 6367 | return c_end_compound_stmt (loc, block, flag_isoc99); |
27bf414c JM |
6368 | } |
6369 | ||
b4b56033 MLI |
6370 | /* Parse the body of an if statement. This is just parsing a |
6371 | statement but (a) it is a block in C99, (b) we track whether the | |
6372 | body is an if statement for the sake of -Wparentheses warnings, (c) | |
6373 | we handle an empty body specially for the sake of -Wempty-body | |
6374 | warnings, and (d) we call parser_compound_statement directly | |
6375 | because c_parser_statement_after_labels resets | |
99cd9857 MP |
6376 | parser->in_if_block. |
6377 | ||
6378 | IF_P is used to track whether there's a (possibly labeled) if statement | |
6379 | which is not enclosed in braces and has an else clause. This is used to | |
6380 | implement -Wparentheses. */ | |
27bf414c JM |
6381 | |
6382 | static tree | |
992118a1 PP |
6383 | c_parser_if_body (c_parser *parser, bool *if_p, |
6384 | const token_indent_info &if_tinfo) | |
27bf414c JM |
6385 | { |
6386 | tree block = c_begin_compound_stmt (flag_isoc99); | |
c2255bc4 | 6387 | location_t body_loc = c_parser_peek_token (parser)->location; |
3e2becc4 | 6388 | location_t body_loc_after_labels = UNKNOWN_LOCATION; |
992118a1 PP |
6389 | token_indent_info body_tinfo |
6390 | = get_token_indent_info (c_parser_peek_token (parser)); | |
6391 | ||
74d98c1e | 6392 | c_parser_all_labels (parser); |
62e00e94 | 6393 | if (c_parser_next_token_is (parser, CPP_SEMICOLON)) |
b4b56033 | 6394 | { |
626c34b5 | 6395 | location_t loc = c_parser_peek_token (parser)->location; |
c2255bc4 | 6396 | add_stmt (build_empty_stmt (loc)); |
b4b56033 | 6397 | c_parser_consume_token (parser); |
626c34b5 PB |
6398 | if (!c_parser_next_token_is_keyword (parser, RID_ELSE)) |
6399 | warning_at (loc, OPT_Wempty_body, | |
6400 | "suggest braces around empty body in an %<if%> statement"); | |
b4b56033 MLI |
6401 | } |
6402 | else if (c_parser_next_token_is (parser, CPP_OPEN_BRACE)) | |
6403 | add_stmt (c_parser_compound_statement (parser)); | |
6404 | else | |
3e2becc4 MP |
6405 | { |
6406 | body_loc_after_labels = c_parser_peek_token (parser)->location; | |
6407 | c_parser_statement_after_labels (parser, if_p); | |
6408 | } | |
992118a1 PP |
6409 | |
6410 | token_indent_info next_tinfo | |
6411 | = get_token_indent_info (c_parser_peek_token (parser)); | |
6412 | warn_for_misleading_indentation (if_tinfo, body_tinfo, next_tinfo); | |
3e2becc4 MP |
6413 | if (body_loc_after_labels != UNKNOWN_LOCATION |
6414 | && next_tinfo.type != CPP_SEMICOLON) | |
6415 | warn_for_multistatement_macros (body_loc_after_labels, next_tinfo.location, | |
6416 | if_tinfo.location, RID_IF); | |
c3388e62 | 6417 | |
c2255bc4 | 6418 | return c_end_compound_stmt (body_loc, block, flag_isoc99); |
b4b56033 MLI |
6419 | } |
6420 | ||
6421 | /* Parse the else body of an if statement. This is just parsing a | |
6422 | statement but (a) it is a block in C99, (b) we handle an empty body | |
3e3b8d63 MP |
6423 | specially for the sake of -Wempty-body warnings. CHAIN is a vector |
6424 | of if-else-if conditions. */ | |
b4b56033 MLI |
6425 | |
6426 | static tree | |
3e3b8d63 MP |
6427 | c_parser_else_body (c_parser *parser, const token_indent_info &else_tinfo, |
6428 | vec<tree> *chain) | |
b4b56033 | 6429 | { |
c3388e62 | 6430 | location_t body_loc = c_parser_peek_token (parser)->location; |
b4b56033 | 6431 | tree block = c_begin_compound_stmt (flag_isoc99); |
992118a1 PP |
6432 | token_indent_info body_tinfo |
6433 | = get_token_indent_info (c_parser_peek_token (parser)); | |
3e2becc4 | 6434 | location_t body_loc_after_labels = UNKNOWN_LOCATION; |
992118a1 | 6435 | |
74d98c1e | 6436 | c_parser_all_labels (parser); |
b4b56033 MLI |
6437 | if (c_parser_next_token_is (parser, CPP_SEMICOLON)) |
6438 | { | |
c2255bc4 AH |
6439 | location_t loc = c_parser_peek_token (parser)->location; |
6440 | warning_at (loc, | |
626c34b5 PB |
6441 | OPT_Wempty_body, |
6442 | "suggest braces around empty body in an %<else%> statement"); | |
c2255bc4 | 6443 | add_stmt (build_empty_stmt (loc)); |
b4b56033 MLI |
6444 | c_parser_consume_token (parser); |
6445 | } | |
b8698a0f | 6446 | else |
3e2becc4 | 6447 | { |
d49718d6 MP |
6448 | if (!c_parser_next_token_is (parser, CPP_OPEN_BRACE)) |
6449 | body_loc_after_labels = c_parser_peek_token (parser)->location; | |
3e2becc4 MP |
6450 | c_parser_statement_after_labels (parser, NULL, chain); |
6451 | } | |
992118a1 PP |
6452 | |
6453 | token_indent_info next_tinfo | |
6454 | = get_token_indent_info (c_parser_peek_token (parser)); | |
6455 | warn_for_misleading_indentation (else_tinfo, body_tinfo, next_tinfo); | |
3e2becc4 MP |
6456 | if (body_loc_after_labels != UNKNOWN_LOCATION |
6457 | && next_tinfo.type != CPP_SEMICOLON) | |
6458 | warn_for_multistatement_macros (body_loc_after_labels, next_tinfo.location, | |
6459 | else_tinfo.location, RID_ELSE); | |
992118a1 | 6460 | |
c3388e62 | 6461 | return c_end_compound_stmt (body_loc, block, flag_isoc99); |
27bf414c JM |
6462 | } |
6463 | ||
2448a956 MP |
6464 | /* We might need to reclassify any previously-lexed identifier, e.g. |
6465 | when we've left a for loop with an if-statement without else in the | |
6466 | body - we might have used a wrong scope for the token. See PR67784. */ | |
6467 | ||
6468 | static void | |
6469 | c_parser_maybe_reclassify_token (c_parser *parser) | |
6470 | { | |
6471 | if (c_parser_next_token_is (parser, CPP_NAME)) | |
6472 | { | |
6473 | c_token *token = c_parser_peek_token (parser); | |
6474 | ||
6475 | if (token->id_kind != C_ID_CLASSNAME) | |
6476 | { | |
6477 | tree decl = lookup_name (token->value); | |
6478 | ||
6479 | token->id_kind = C_ID_ID; | |
6480 | if (decl) | |
6481 | { | |
6482 | if (TREE_CODE (decl) == TYPE_DECL) | |
6483 | token->id_kind = C_ID_TYPENAME; | |
6484 | } | |
6485 | else if (c_dialect_objc ()) | |
6486 | { | |
6487 | tree objc_interface_decl = objc_is_class_name (token->value); | |
6488 | /* Objective-C class names are in the same namespace as | |
6489 | variables and typedefs, and hence are shadowed by local | |
6490 | declarations. */ | |
6491 | if (objc_interface_decl) | |
6492 | { | |
6493 | token->value = objc_interface_decl; | |
6494 | token->id_kind = C_ID_CLASSNAME; | |
6495 | } | |
6496 | } | |
6497 | } | |
6498 | } | |
6499 | } | |
6500 | ||
31dc71a8 | 6501 | /* Parse an if statement (C90 6.6.4, C99 6.8.4, C11 6.8.4). |
27bf414c JM |
6502 | |
6503 | if-statement: | |
6504 | if ( expression ) statement | |
6505 | if ( expression ) statement else statement | |
3e3b8d63 | 6506 | |
99cd9857 MP |
6507 | CHAIN is a vector of if-else-if conditions. |
6508 | IF_P is used to track whether there's a (possibly labeled) if statement | |
6509 | which is not enclosed in braces and has an else clause. This is used to | |
6510 | implement -Wparentheses. */ | |
27bf414c JM |
6511 | |
6512 | static void | |
99cd9857 | 6513 | c_parser_if_statement (c_parser *parser, bool *if_p, vec<tree> *chain) |
27bf414c JM |
6514 | { |
6515 | tree block; | |
6516 | location_t loc; | |
6517 | tree cond; | |
99cd9857 | 6518 | bool nested_if = false; |
27bf414c | 6519 | tree first_body, second_body; |
b4b56033 MLI |
6520 | bool in_if_block; |
6521 | ||
27bf414c | 6522 | gcc_assert (c_parser_next_token_is_keyword (parser, RID_IF)); |
992118a1 PP |
6523 | token_indent_info if_tinfo |
6524 | = get_token_indent_info (c_parser_peek_token (parser)); | |
27bf414c JM |
6525 | c_parser_consume_token (parser); |
6526 | block = c_begin_compound_stmt (flag_isoc99); | |
6527 | loc = c_parser_peek_token (parser)->location; | |
6528 | cond = c_parser_paren_condition (parser); | |
b4b56033 MLI |
6529 | in_if_block = parser->in_if_block; |
6530 | parser->in_if_block = true; | |
99cd9857 | 6531 | first_body = c_parser_if_body (parser, &nested_if, if_tinfo); |
b4b56033 | 6532 | parser->in_if_block = in_if_block; |
3e3b8d63 MP |
6533 | |
6534 | if (warn_duplicated_cond) | |
6535 | warn_duplicated_cond_add_or_warn (EXPR_LOCATION (cond), cond, &chain); | |
6536 | ||
27bf414c JM |
6537 | if (c_parser_next_token_is_keyword (parser, RID_ELSE)) |
6538 | { | |
992118a1 PP |
6539 | token_indent_info else_tinfo |
6540 | = get_token_indent_info (c_parser_peek_token (parser)); | |
27bf414c | 6541 | c_parser_consume_token (parser); |
3e3b8d63 MP |
6542 | if (warn_duplicated_cond) |
6543 | { | |
6544 | if (c_parser_next_token_is_keyword (parser, RID_IF) | |
6545 | && chain == NULL) | |
6546 | { | |
6547 | /* We've got "if (COND) else if (COND2)". Start the | |
6548 | condition chain and add COND as the first element. */ | |
6549 | chain = new vec<tree> (); | |
6550 | if (!CONSTANT_CLASS_P (cond) && !TREE_SIDE_EFFECTS (cond)) | |
6551 | chain->safe_push (cond); | |
6552 | } | |
6553 | else if (!c_parser_next_token_is_keyword (parser, RID_IF)) | |
6554 | { | |
6555 | /* This is if-else without subsequent if. Zap the condition | |
6556 | chain; we would have already warned at this point. */ | |
6557 | delete chain; | |
6558 | chain = NULL; | |
6559 | } | |
6560 | } | |
6561 | second_body = c_parser_else_body (parser, else_tinfo, chain); | |
99cd9857 MP |
6562 | /* Set IF_P to true to indicate that this if statement has an |
6563 | else clause. This may trigger the Wparentheses warning | |
6564 | below when we get back up to the parent if statement. */ | |
6565 | if (if_p != NULL) | |
6566 | *if_p = true; | |
27bf414c JM |
6567 | } |
6568 | else | |
3e3b8d63 MP |
6569 | { |
6570 | second_body = NULL_TREE; | |
99cd9857 MP |
6571 | |
6572 | /* Diagnose an ambiguous else if if-then-else is nested inside | |
6573 | if-then. */ | |
6574 | if (nested_if) | |
deef7113 | 6575 | warning_at (loc, OPT_Wdangling_else, |
99cd9857 MP |
6576 | "suggest explicit braces to avoid ambiguous %<else%>"); |
6577 | ||
3e3b8d63 MP |
6578 | if (warn_duplicated_cond) |
6579 | { | |
6580 | /* This if statement does not have an else clause. We don't | |
6581 | need the condition chain anymore. */ | |
6582 | delete chain; | |
6583 | chain = NULL; | |
6584 | } | |
6585 | } | |
99cd9857 | 6586 | c_finish_if_stmt (loc, cond, first_body, second_body); |
5e9d6aa4 | 6587 | add_stmt (c_end_compound_stmt (loc, block, flag_isoc99)); |
36536d79 | 6588 | |
2448a956 | 6589 | c_parser_maybe_reclassify_token (parser); |
27bf414c JM |
6590 | } |
6591 | ||
31dc71a8 | 6592 | /* Parse a switch statement (C90 6.6.4, C99 6.8.4, C11 6.8.4). |
27bf414c JM |
6593 | |
6594 | switch-statement: | |
6595 | switch (expression) statement | |
6596 | */ | |
6597 | ||
6598 | static void | |
351f85c5 | 6599 | c_parser_switch_statement (c_parser *parser, bool *if_p) |
27bf414c | 6600 | { |
267bac10 | 6601 | struct c_expr ce; |
27bf414c | 6602 | tree block, expr, body, save_break; |
c2255bc4 AH |
6603 | location_t switch_loc = c_parser_peek_token (parser)->location; |
6604 | location_t switch_cond_loc; | |
27bf414c JM |
6605 | gcc_assert (c_parser_next_token_is_keyword (parser, RID_SWITCH)); |
6606 | c_parser_consume_token (parser); | |
6607 | block = c_begin_compound_stmt (flag_isoc99); | |
fedfecef | 6608 | bool explicit_cast_p = false; |
32129a17 DM |
6609 | matching_parens parens; |
6610 | if (parens.require_open (parser)) | |
27bf414c | 6611 | { |
c2255bc4 | 6612 | switch_cond_loc = c_parser_peek_token (parser)->location; |
fedfecef MP |
6613 | if (c_parser_next_token_is (parser, CPP_OPEN_PAREN) |
6614 | && c_token_starts_typename (c_parser_peek_2nd_token (parser))) | |
6615 | explicit_cast_p = true; | |
267bac10 | 6616 | ce = c_parser_expression (parser); |
f9eb0973 | 6617 | ce = convert_lvalue_to_rvalue (switch_cond_loc, ce, true, true); |
267bac10 | 6618 | expr = ce.value; |
e5e44252 | 6619 | /* ??? expr has no valid location? */ |
32129a17 | 6620 | parens.skip_until_found_close (parser); |
27bf414c JM |
6621 | } |
6622 | else | |
c2255bc4 AH |
6623 | { |
6624 | switch_cond_loc = UNKNOWN_LOCATION; | |
6625 | expr = error_mark_node; | |
efd0786f | 6626 | ce.original_type = error_mark_node; |
c2255bc4 | 6627 | } |
fedfecef | 6628 | c_start_case (switch_loc, switch_cond_loc, expr, explicit_cast_p); |
27bf414c JM |
6629 | save_break = c_break_label; |
6630 | c_break_label = NULL_TREE; | |
3e2becc4 MP |
6631 | location_t loc_after_labels; |
6632 | bool open_brace_p = c_parser_peek_token (parser)->type == CPP_OPEN_BRACE; | |
6633 | body = c_parser_c99_block_statement (parser, if_p, &loc_after_labels); | |
6634 | location_t next_loc = c_parser_peek_token (parser)->location; | |
6635 | if (!open_brace_p && c_parser_peek_token (parser)->type != CPP_SEMICOLON) | |
6636 | warn_for_multistatement_macros (loc_after_labels, next_loc, switch_loc, | |
6637 | RID_SWITCH); | |
27bf414c | 6638 | if (c_break_label) |
c2255bc4 AH |
6639 | { |
6640 | location_t here = c_parser_peek_token (parser)->location; | |
6641 | tree t = build1 (LABEL_EXPR, void_type_node, c_break_label); | |
6642 | SET_EXPR_LOCATION (t, here); | |
65791f42 JJ |
6643 | SWITCH_BREAK_LABEL_P (c_break_label) = 1; |
6644 | append_to_statement_list_force (t, &body); | |
c2255bc4 | 6645 | } |
65791f42 | 6646 | c_finish_case (body, ce.original_type); |
27bf414c | 6647 | c_break_label = save_break; |
c2255bc4 | 6648 | add_stmt (c_end_compound_stmt (switch_loc, block, flag_isoc99)); |
2448a956 | 6649 | c_parser_maybe_reclassify_token (parser); |
27bf414c JM |
6650 | } |
6651 | ||
31dc71a8 | 6652 | /* Parse a while statement (C90 6.6.5, C99 6.8.5, C11 6.8.5). |
27bf414c JM |
6653 | |
6654 | while-statement: | |
6655 | while (expression) statement | |
99cd9857 MP |
6656 | |
6657 | IF_P is used to track whether there's a (possibly labeled) if statement | |
6658 | which is not enclosed in braces and has an else clause. This is used to | |
6659 | implement -Wparentheses. */ | |
27bf414c JM |
6660 | |
6661 | static void | |
170a8bd6 EB |
6662 | c_parser_while_statement (c_parser *parser, bool ivdep, unsigned short unroll, |
6663 | bool *if_p) | |
27bf414c JM |
6664 | { |
6665 | tree block, cond, body, save_break, save_cont; | |
6666 | location_t loc; | |
6667 | gcc_assert (c_parser_next_token_is_keyword (parser, RID_WHILE)); | |
992118a1 PP |
6668 | token_indent_info while_tinfo |
6669 | = get_token_indent_info (c_parser_peek_token (parser)); | |
27bf414c JM |
6670 | c_parser_consume_token (parser); |
6671 | block = c_begin_compound_stmt (flag_isoc99); | |
6672 | loc = c_parser_peek_token (parser)->location; | |
6673 | cond = c_parser_paren_condition (parser); | |
d4af74d4 | 6674 | if (ivdep && cond != error_mark_node) |
ac9effed | 6675 | cond = build3 (ANNOTATE_EXPR, TREE_TYPE (cond), cond, |
d4af74d4 | 6676 | build_int_cst (integer_type_node, |
ac9effed EB |
6677 | annot_expr_ivdep_kind), |
6678 | integer_zero_node); | |
170a8bd6 EB |
6679 | if (unroll && cond != error_mark_node) |
6680 | cond = build3 (ANNOTATE_EXPR, TREE_TYPE (cond), cond, | |
6681 | build_int_cst (integer_type_node, | |
6682 | annot_expr_unroll_kind), | |
6683 | build_int_cst (integer_type_node, unroll)); | |
27bf414c JM |
6684 | save_break = c_break_label; |
6685 | c_break_label = NULL_TREE; | |
6686 | save_cont = c_cont_label; | |
6687 | c_cont_label = NULL_TREE; | |
c3388e62 | 6688 | |
992118a1 PP |
6689 | token_indent_info body_tinfo |
6690 | = get_token_indent_info (c_parser_peek_token (parser)); | |
6691 | ||
3e2becc4 | 6692 | location_t loc_after_labels; |
d49718d6 | 6693 | bool open_brace = c_parser_next_token_is (parser, CPP_OPEN_BRACE); |
3e2becc4 | 6694 | body = c_parser_c99_block_statement (parser, if_p, &loc_after_labels); |
f179b64e JJ |
6695 | c_finish_loop (loc, loc, cond, UNKNOWN_LOCATION, NULL, body, |
6696 | c_break_label, c_cont_label, true); | |
f6b0b3db | 6697 | add_stmt (c_end_compound_stmt (loc, block, flag_isoc99)); |
2448a956 | 6698 | c_parser_maybe_reclassify_token (parser); |
992118a1 PP |
6699 | |
6700 | token_indent_info next_tinfo | |
6701 | = get_token_indent_info (c_parser_peek_token (parser)); | |
6702 | warn_for_misleading_indentation (while_tinfo, body_tinfo, next_tinfo); | |
c3388e62 | 6703 | |
d49718d6 | 6704 | if (next_tinfo.type != CPP_SEMICOLON && !open_brace) |
3e2becc4 MP |
6705 | warn_for_multistatement_macros (loc_after_labels, next_tinfo.location, |
6706 | while_tinfo.location, RID_WHILE); | |
6707 | ||
27bf414c JM |
6708 | c_break_label = save_break; |
6709 | c_cont_label = save_cont; | |
6710 | } | |
6711 | ||
31dc71a8 | 6712 | /* Parse a do statement (C90 6.6.5, C99 6.8.5, C11 6.8.5). |
27bf414c JM |
6713 | |
6714 | do-statement: | |
6715 | do statement while ( expression ) ; | |
6716 | */ | |
6717 | ||
6718 | static void | |
170a8bd6 | 6719 | c_parser_do_statement (c_parser *parser, bool ivdep, unsigned short unroll) |
27bf414c JM |
6720 | { |
6721 | tree block, cond, body, save_break, save_cont, new_break, new_cont; | |
6722 | location_t loc; | |
6723 | gcc_assert (c_parser_next_token_is_keyword (parser, RID_DO)); | |
6724 | c_parser_consume_token (parser); | |
62e00e94 | 6725 | if (c_parser_next_token_is (parser, CPP_SEMICOLON)) |
3ba09659 AH |
6726 | warning_at (c_parser_peek_token (parser)->location, |
6727 | OPT_Wempty_body, | |
6728 | "suggest braces around empty body in %<do%> statement"); | |
27bf414c JM |
6729 | block = c_begin_compound_stmt (flag_isoc99); |
6730 | loc = c_parser_peek_token (parser)->location; | |
6731 | save_break = c_break_label; | |
6732 | c_break_label = NULL_TREE; | |
6733 | save_cont = c_cont_label; | |
6734 | c_cont_label = NULL_TREE; | |
99cd9857 | 6735 | body = c_parser_c99_block_statement (parser, NULL); |
27bf414c JM |
6736 | c_parser_require_keyword (parser, RID_WHILE, "expected %<while%>"); |
6737 | new_break = c_break_label; | |
6738 | c_break_label = save_break; | |
6739 | new_cont = c_cont_label; | |
6740 | c_cont_label = save_cont; | |
f179b64e | 6741 | location_t cond_loc = c_parser_peek_token (parser)->location; |
27bf414c | 6742 | cond = c_parser_paren_condition (parser); |
d4af74d4 | 6743 | if (ivdep && cond != error_mark_node) |
ac9effed | 6744 | cond = build3 (ANNOTATE_EXPR, TREE_TYPE (cond), cond, |
d4af74d4 | 6745 | build_int_cst (integer_type_node, |
ac9effed EB |
6746 | annot_expr_ivdep_kind), |
6747 | integer_zero_node); | |
170a8bd6 EB |
6748 | if (unroll && cond != error_mark_node) |
6749 | cond = build3 (ANNOTATE_EXPR, TREE_TYPE (cond), cond, | |
6750 | build_int_cst (integer_type_node, | |
6751 | annot_expr_unroll_kind), | |
6752 | build_int_cst (integer_type_node, unroll)); | |
27bf414c JM |
6753 | if (!c_parser_require (parser, CPP_SEMICOLON, "expected %<;%>")) |
6754 | c_parser_skip_to_end_of_block_or_statement (parser); | |
f179b64e JJ |
6755 | c_finish_loop (loc, cond_loc, cond, UNKNOWN_LOCATION, NULL, body, |
6756 | new_break, new_cont, false); | |
c2255bc4 | 6757 | add_stmt (c_end_compound_stmt (loc, block, flag_isoc99)); |
27bf414c JM |
6758 | } |
6759 | ||
31dc71a8 | 6760 | /* Parse a for statement (C90 6.6.5, C99 6.8.5, C11 6.8.5). |
27bf414c JM |
6761 | |
6762 | for-statement: | |
6763 | for ( expression[opt] ; expression[opt] ; expression[opt] ) statement | |
6764 | for ( nested-declaration expression[opt] ; expression[opt] ) statement | |
6765 | ||
6766 | The form with a declaration is new in C99. | |
6767 | ||
6768 | ??? In accordance with the old parser, the declaration may be a | |
6769 | nested function, which is then rejected in check_for_loop_decls, | |
6770 | but does it make any sense for this to be included in the grammar? | |
6771 | Note in particular that the nested function does not include a | |
6772 | trailing ';', whereas the "declaration" production includes one. | |
6773 | Also, can we reject bad declarations earlier and cheaper than | |
f05b9d93 NP |
6774 | check_for_loop_decls? |
6775 | ||
6776 | In Objective-C, there are two additional variants: | |
6777 | ||
6778 | foreach-statement: | |
6779 | for ( expression in expresssion ) statement | |
6780 | for ( declaration in expression ) statement | |
6781 | ||
6782 | This is inconsistent with C, because the second variant is allowed | |
6783 | even if c99 is not enabled. | |
6784 | ||
6785 | The rest of the comment documents these Objective-C foreach-statement. | |
6786 | ||
6787 | Here is the canonical example of the first variant: | |
6788 | for (object in array) { do something with object } | |
6789 | we call the first expression ("object") the "object_expression" and | |
6790 | the second expression ("array") the "collection_expression". | |
6791 | object_expression must be an lvalue of type "id" (a generic Objective-C | |
6792 | object) because the loop works by assigning to object_expression the | |
6793 | various objects from the collection_expression. collection_expression | |
6794 | must evaluate to something of type "id" which responds to the method | |
6795 | countByEnumeratingWithState:objects:count:. | |
6796 | ||
6797 | The canonical example of the second variant is: | |
6798 | for (id object in array) { do something with object } | |
6799 | which is completely equivalent to | |
6800 | { | |
6801 | id object; | |
6802 | for (object in array) { do something with object } | |
6803 | } | |
6804 | Note that initizializing 'object' in some way (eg, "for ((object = | |
6805 | xxx) in array) { do something with object }") is possibly | |
6806 | technically valid, but completely pointless as 'object' will be | |
6807 | assigned to something else as soon as the loop starts. We should | |
6808 | most likely reject it (TODO). | |
6809 | ||
6810 | The beginning of the Objective-C foreach-statement looks exactly | |
6811 | like the beginning of the for-statement, and we can tell it is a | |
6812 | foreach-statement only because the initial declaration or | |
6813 | expression is terminated by 'in' instead of ';'. | |
99cd9857 MP |
6814 | |
6815 | IF_P is used to track whether there's a (possibly labeled) if statement | |
6816 | which is not enclosed in braces and has an else clause. This is used to | |
6817 | implement -Wparentheses. */ | |
27bf414c JM |
6818 | |
6819 | static void | |
170a8bd6 EB |
6820 | c_parser_for_statement (c_parser *parser, bool ivdep, unsigned short unroll, |
6821 | bool *if_p) | |
27bf414c JM |
6822 | { |
6823 | tree block, cond, incr, save_break, save_cont, body; | |
f05b9d93 | 6824 | /* The following are only used when parsing an ObjC foreach statement. */ |
689f2c82 AO |
6825 | tree object_expression; |
6826 | /* Silence the bogus uninitialized warning. */ | |
6827 | tree collection_expression = NULL; | |
c2255bc4 | 6828 | location_t loc = c_parser_peek_token (parser)->location; |
f179b64e JJ |
6829 | location_t for_loc = loc; |
6830 | location_t cond_loc = UNKNOWN_LOCATION; | |
6831 | location_t incr_loc = UNKNOWN_LOCATION; | |
f05b9d93 | 6832 | bool is_foreach_statement = false; |
27bf414c | 6833 | gcc_assert (c_parser_next_token_is_keyword (parser, RID_FOR)); |
992118a1 PP |
6834 | token_indent_info for_tinfo |
6835 | = get_token_indent_info (c_parser_peek_token (parser)); | |
27bf414c | 6836 | c_parser_consume_token (parser); |
f05b9d93 NP |
6837 | /* Open a compound statement in Objective-C as well, just in case this is |
6838 | as foreach expression. */ | |
6839 | block = c_begin_compound_stmt (flag_isoc99 || c_dialect_objc ()); | |
91b90ead UB |
6840 | cond = error_mark_node; |
6841 | incr = error_mark_node; | |
32129a17 DM |
6842 | matching_parens parens; |
6843 | if (parens.require_open (parser)) | |
27bf414c JM |
6844 | { |
6845 | /* Parse the initialization declaration or expression. */ | |
f05b9d93 | 6846 | object_expression = error_mark_node; |
a5812bdc | 6847 | parser->objc_could_be_foreach_context = c_dialect_objc (); |
27bf414c JM |
6848 | if (c_parser_next_token_is (parser, CPP_SEMICOLON)) |
6849 | { | |
a5812bdc | 6850 | parser->objc_could_be_foreach_context = false; |
27bf414c | 6851 | c_parser_consume_token (parser); |
c2255bc4 | 6852 | c_finish_expr_stmt (loc, NULL_TREE); |
27bf414c | 6853 | } |
4e03c3a7 JM |
6854 | else if (c_parser_next_tokens_start_declaration (parser) |
6855 | || c_parser_nth_token_starts_std_attributes (parser, 1)) | |
27bf414c | 6856 | { |
f05b9d93 | 6857 | c_parser_declaration_or_fndef (parser, true, true, true, true, true, |
acf0174b | 6858 | &object_expression, vNULL); |
f05b9d93 NP |
6859 | parser->objc_could_be_foreach_context = false; |
6860 | ||
6861 | if (c_parser_next_token_is_keyword (parser, RID_IN)) | |
6862 | { | |
6863 | c_parser_consume_token (parser); | |
6864 | is_foreach_statement = true; | |
6865 | if (check_for_loop_decls (for_loc, true) == NULL_TREE) | |
f179b64e JJ |
6866 | c_parser_error (parser, "multiple iterating variables in " |
6867 | "fast enumeration"); | |
f05b9d93 NP |
6868 | } |
6869 | else | |
6870 | check_for_loop_decls (for_loc, flag_isoc99); | |
27bf414c JM |
6871 | } |
6872 | else if (c_parser_next_token_is_keyword (parser, RID_EXTENSION)) | |
6873 | { | |
6874 | /* __extension__ can start a declaration, but is also an | |
6875 | unary operator that can start an expression. Consume all | |
6876 | but the last of a possible series of __extension__ to | |
6877 | determine which. */ | |
6878 | while (c_parser_peek_2nd_token (parser)->type == CPP_KEYWORD | |
6879 | && (c_parser_peek_2nd_token (parser)->keyword | |
6880 | == RID_EXTENSION)) | |
6881 | c_parser_consume_token (parser); | |
4e03c3a7 JM |
6882 | if (c_token_starts_declaration (c_parser_peek_2nd_token (parser)) |
6883 | || c_parser_nth_token_starts_std_attributes (parser, 2)) | |
27bf414c JM |
6884 | { |
6885 | int ext; | |
6886 | ext = disable_extension_diagnostics (); | |
6887 | c_parser_consume_token (parser); | |
32912286 | 6888 | c_parser_declaration_or_fndef (parser, true, true, true, true, |
acf0174b | 6889 | true, &object_expression, vNULL); |
f05b9d93 NP |
6890 | parser->objc_could_be_foreach_context = false; |
6891 | ||
27bf414c | 6892 | restore_extension_diagnostics (ext); |
f05b9d93 NP |
6893 | if (c_parser_next_token_is_keyword (parser, RID_IN)) |
6894 | { | |
6895 | c_parser_consume_token (parser); | |
6896 | is_foreach_statement = true; | |
6897 | if (check_for_loop_decls (for_loc, true) == NULL_TREE) | |
f179b64e JJ |
6898 | c_parser_error (parser, "multiple iterating variables in " |
6899 | "fast enumeration"); | |
f05b9d93 NP |
6900 | } |
6901 | else | |
6902 | check_for_loop_decls (for_loc, flag_isoc99); | |
27bf414c JM |
6903 | } |
6904 | else | |
6905 | goto init_expr; | |
6906 | } | |
6907 | else | |
6908 | { | |
6909 | init_expr: | |
f05b9d93 | 6910 | { |
267bac10 | 6911 | struct c_expr ce; |
f05b9d93 | 6912 | tree init_expression; |
267bac10 JM |
6913 | ce = c_parser_expression (parser); |
6914 | init_expression = ce.value; | |
f05b9d93 NP |
6915 | parser->objc_could_be_foreach_context = false; |
6916 | if (c_parser_next_token_is_keyword (parser, RID_IN)) | |
6917 | { | |
6918 | c_parser_consume_token (parser); | |
6919 | is_foreach_statement = true; | |
6920 | if (! lvalue_p (init_expression)) | |
f179b64e JJ |
6921 | c_parser_error (parser, "invalid iterating variable in " |
6922 | "fast enumeration"); | |
6923 | object_expression | |
6924 | = c_fully_fold (init_expression, false, NULL); | |
f05b9d93 NP |
6925 | } |
6926 | else | |
6927 | { | |
267bac10 JM |
6928 | ce = convert_lvalue_to_rvalue (loc, ce, true, false); |
6929 | init_expression = ce.value; | |
f05b9d93 | 6930 | c_finish_expr_stmt (loc, init_expression); |
f179b64e JJ |
6931 | c_parser_skip_until_found (parser, CPP_SEMICOLON, |
6932 | "expected %<;%>"); | |
f05b9d93 NP |
6933 | } |
6934 | } | |
27bf414c | 6935 | } |
f05b9d93 NP |
6936 | /* Parse the loop condition. In the case of a foreach |
6937 | statement, there is no loop condition. */ | |
a5812bdc | 6938 | gcc_assert (!parser->objc_could_be_foreach_context); |
f05b9d93 | 6939 | if (!is_foreach_statement) |
27bf414c | 6940 | { |
f179b64e | 6941 | cond_loc = c_parser_peek_token (parser)->location; |
f05b9d93 NP |
6942 | if (c_parser_next_token_is (parser, CPP_SEMICOLON)) |
6943 | { | |
8170608b TB |
6944 | if (ivdep) |
6945 | { | |
f179b64e JJ |
6946 | c_parser_error (parser, "missing loop condition in loop " |
6947 | "with %<GCC ivdep%> pragma"); | |
8170608b TB |
6948 | cond = error_mark_node; |
6949 | } | |
170a8bd6 EB |
6950 | else if (unroll) |
6951 | { | |
f179b64e JJ |
6952 | c_parser_error (parser, "missing loop condition in loop " |
6953 | "with %<GCC unroll%> pragma"); | |
170a8bd6 EB |
6954 | cond = error_mark_node; |
6955 | } | |
8170608b TB |
6956 | else |
6957 | { | |
6958 | c_parser_consume_token (parser); | |
6959 | cond = NULL_TREE; | |
6960 | } | |
f05b9d93 NP |
6961 | } |
6962 | else | |
6963 | { | |
6964 | cond = c_parser_condition (parser); | |
36536d79 BI |
6965 | c_parser_skip_until_found (parser, CPP_SEMICOLON, |
6966 | "expected %<;%>"); | |
f05b9d93 | 6967 | } |
8170608b | 6968 | if (ivdep && cond != error_mark_node) |
ac9effed | 6969 | cond = build3 (ANNOTATE_EXPR, TREE_TYPE (cond), cond, |
8170608b | 6970 | build_int_cst (integer_type_node, |
ac9effed EB |
6971 | annot_expr_ivdep_kind), |
6972 | integer_zero_node); | |
170a8bd6 EB |
6973 | if (unroll && cond != error_mark_node) |
6974 | cond = build3 (ANNOTATE_EXPR, TREE_TYPE (cond), cond, | |
6975 | build_int_cst (integer_type_node, | |
6976 | annot_expr_unroll_kind), | |
6977 | build_int_cst (integer_type_node, unroll)); | |
27bf414c | 6978 | } |
f05b9d93 NP |
6979 | /* Parse the increment expression (the third expression in a |
6980 | for-statement). In the case of a foreach-statement, this is | |
6981 | the expression that follows the 'in'. */ | |
f179b64e | 6982 | loc = incr_loc = c_parser_peek_token (parser)->location; |
f05b9d93 | 6983 | if (c_parser_next_token_is (parser, CPP_CLOSE_PAREN)) |
27bf414c | 6984 | { |
f05b9d93 NP |
6985 | if (is_foreach_statement) |
6986 | { | |
f179b64e JJ |
6987 | c_parser_error (parser, |
6988 | "missing collection in fast enumeration"); | |
f05b9d93 NP |
6989 | collection_expression = error_mark_node; |
6990 | } | |
6991 | else | |
6992 | incr = c_process_expr_stmt (loc, NULL_TREE); | |
27bf414c | 6993 | } |
27bf414c | 6994 | else |
f05b9d93 NP |
6995 | { |
6996 | if (is_foreach_statement) | |
f179b64e JJ |
6997 | collection_expression |
6998 | = c_fully_fold (c_parser_expression (parser).value, false, NULL); | |
f05b9d93 | 6999 | else |
267bac10 JM |
7000 | { |
7001 | struct c_expr ce = c_parser_expression (parser); | |
7002 | ce = convert_lvalue_to_rvalue (loc, ce, true, false); | |
7003 | incr = c_process_expr_stmt (loc, ce.value); | |
7004 | } | |
f05b9d93 | 7005 | } |
32129a17 | 7006 | parens.skip_until_found_close (parser); |
27bf414c | 7007 | } |
27bf414c JM |
7008 | save_break = c_break_label; |
7009 | c_break_label = NULL_TREE; | |
7010 | save_cont = c_cont_label; | |
7011 | c_cont_label = NULL_TREE; | |
c3388e62 | 7012 | |
992118a1 PP |
7013 | token_indent_info body_tinfo |
7014 | = get_token_indent_info (c_parser_peek_token (parser)); | |
7015 | ||
3e2becc4 | 7016 | location_t loc_after_labels; |
d49718d6 | 7017 | bool open_brace = c_parser_next_token_is (parser, CPP_OPEN_BRACE); |
3e2becc4 | 7018 | body = c_parser_c99_block_statement (parser, if_p, &loc_after_labels); |
992118a1 | 7019 | |
f05b9d93 | 7020 | if (is_foreach_statement) |
f179b64e JJ |
7021 | objc_finish_foreach_loop (for_loc, object_expression, |
7022 | collection_expression, body, c_break_label, | |
7023 | c_cont_label); | |
f05b9d93 | 7024 | else |
f179b64e JJ |
7025 | c_finish_loop (for_loc, cond_loc, cond, incr_loc, incr, body, |
7026 | c_break_label, c_cont_label, true); | |
7027 | add_stmt (c_end_compound_stmt (for_loc, block, | |
7028 | flag_isoc99 || c_dialect_objc ())); | |
2448a956 | 7029 | c_parser_maybe_reclassify_token (parser); |
9be4f715 | 7030 | |
f6b0b3db AA |
7031 | token_indent_info next_tinfo |
7032 | = get_token_indent_info (c_parser_peek_token (parser)); | |
7033 | warn_for_misleading_indentation (for_tinfo, body_tinfo, next_tinfo); | |
7034 | ||
d49718d6 | 7035 | if (next_tinfo.type != CPP_SEMICOLON && !open_brace) |
3e2becc4 MP |
7036 | warn_for_multistatement_macros (loc_after_labels, next_tinfo.location, |
7037 | for_tinfo.location, RID_FOR); | |
7038 | ||
27bf414c JM |
7039 | c_break_label = save_break; |
7040 | c_cont_label = save_cont; | |
7041 | } | |
7042 | ||
7043 | /* Parse an asm statement, a GNU extension. This is a full-blown asm | |
5b76e75f SB |
7044 | statement with inputs, outputs, clobbers, and volatile, inline, and goto |
7045 | tags allowed. | |
27bf414c | 7046 | |
30bd42b9 SB |
7047 | asm-qualifier: |
7048 | volatile | |
5b76e75f | 7049 | inline |
30bd42b9 SB |
7050 | goto |
7051 | ||
7052 | asm-qualifier-list: | |
7053 | asm-qualifier-list asm-qualifier | |
7054 | asm-qualifier | |
7055 | ||
27bf414c | 7056 | asm-statement: |
30bd42b9 | 7057 | asm asm-qualifier-list[opt] ( asm-argument ) ; |
27bf414c JM |
7058 | |
7059 | asm-argument: | |
7060 | asm-string-literal | |
7061 | asm-string-literal : asm-operands[opt] | |
7062 | asm-string-literal : asm-operands[opt] : asm-operands[opt] | |
30bd42b9 SB |
7063 | asm-string-literal : asm-operands[opt] : asm-operands[opt] \ |
7064 | : asm-clobbers[opt] | |
1c384bf1 RH |
7065 | asm-string-literal : : asm-operands[opt] : asm-clobbers[opt] \ |
7066 | : asm-goto-operands | |
27bf414c | 7067 | |
30bd42b9 SB |
7068 | The form with asm-goto-operands is valid if and only if the |
7069 | asm-qualifier-list contains goto, and is the only allowed form in that case. | |
93313b94 JM |
7070 | Duplicate asm-qualifiers are not allowed. |
7071 | ||
7072 | The :: token is considered equivalent to two consecutive : tokens. */ | |
27bf414c JM |
7073 | |
7074 | static tree | |
7075 | c_parser_asm_statement (c_parser *parser) | |
7076 | { | |
db4fd626 SB |
7077 | tree str, outputs, inputs, clobbers, labels, ret; |
7078 | bool simple; | |
c2255bc4 | 7079 | location_t asm_loc = c_parser_peek_token (parser)->location; |
1c384bf1 RH |
7080 | int section, nsections; |
7081 | ||
27bf414c JM |
7082 | gcc_assert (c_parser_next_token_is_keyword (parser, RID_ASM)); |
7083 | c_parser_consume_token (parser); | |
1c384bf1 | 7084 | |
db4fd626 SB |
7085 | /* Handle the asm-qualifier-list. */ |
7086 | location_t volatile_loc = UNKNOWN_LOCATION; | |
7087 | location_t inline_loc = UNKNOWN_LOCATION; | |
7088 | location_t goto_loc = UNKNOWN_LOCATION; | |
9c9cfcbb SB |
7089 | for (;;) |
7090 | { | |
db4fd626 SB |
7091 | c_token *token = c_parser_peek_token (parser); |
7092 | location_t loc = token->location; | |
7093 | switch (token->keyword) | |
9c9cfcbb SB |
7094 | { |
7095 | case RID_VOLATILE: | |
db4fd626 SB |
7096 | if (volatile_loc) |
7097 | { | |
a9c697b8 | 7098 | error_at (loc, "duplicate %<asm%> qualifier %qE", token->value); |
db4fd626 SB |
7099 | inform (volatile_loc, "first seen here"); |
7100 | } | |
7101 | else | |
7102 | volatile_loc = loc; | |
9c9cfcbb SB |
7103 | c_parser_consume_token (parser); |
7104 | continue; | |
7105 | ||
7106 | case RID_INLINE: | |
db4fd626 SB |
7107 | if (inline_loc) |
7108 | { | |
a9c697b8 | 7109 | error_at (loc, "duplicate %<asm%> qualifier %qE", token->value); |
db4fd626 SB |
7110 | inform (inline_loc, "first seen here"); |
7111 | } | |
7112 | else | |
7113 | inline_loc = loc; | |
9c9cfcbb SB |
7114 | c_parser_consume_token (parser); |
7115 | continue; | |
7116 | ||
7117 | case RID_GOTO: | |
db4fd626 SB |
7118 | if (goto_loc) |
7119 | { | |
a9c697b8 | 7120 | error_at (loc, "duplicate %<asm%> qualifier %qE", token->value); |
db4fd626 SB |
7121 | inform (goto_loc, "first seen here"); |
7122 | } | |
7123 | else | |
7124 | goto_loc = loc; | |
9c9cfcbb SB |
7125 | c_parser_consume_token (parser); |
7126 | continue; | |
7127 | ||
1edf8866 SB |
7128 | case RID_CONST: |
7129 | case RID_RESTRICT: | |
a9c697b8 | 7130 | error_at (loc, "%qE is not a valid %<asm%> qualifier", token->value); |
1edf8866 SB |
7131 | c_parser_consume_token (parser); |
7132 | continue; | |
7133 | ||
9c9cfcbb SB |
7134 | default: |
7135 | break; | |
7136 | } | |
7137 | break; | |
7138 | } | |
1c384bf1 | 7139 | |
db4fd626 SB |
7140 | bool is_volatile = (volatile_loc != UNKNOWN_LOCATION); |
7141 | bool is_inline = (inline_loc != UNKNOWN_LOCATION); | |
7142 | bool is_goto = (goto_loc != UNKNOWN_LOCATION); | |
7143 | ||
1c384bf1 RH |
7144 | ret = NULL; |
7145 | ||
32129a17 DM |
7146 | matching_parens parens; |
7147 | if (!parens.require_open (parser)) | |
1c384bf1 RH |
7148 | goto error; |
7149 | ||
27bf414c | 7150 | str = c_parser_asm_string_literal (parser); |
b85eb797 | 7151 | if (str == NULL_TREE) |
1c384bf1 RH |
7152 | goto error_close_paren; |
7153 | ||
7154 | simple = true; | |
7155 | outputs = NULL_TREE; | |
7156 | inputs = NULL_TREE; | |
7157 | clobbers = NULL_TREE; | |
7158 | labels = NULL_TREE; | |
7159 | ||
7160 | if (c_parser_next_token_is (parser, CPP_CLOSE_PAREN) && !is_goto) | |
7161 | goto done_asm; | |
7162 | ||
7163 | /* Parse each colon-delimited section of operands. */ | |
7164 | nsections = 3 + is_goto; | |
7165 | for (section = 0; section < nsections; ++section) | |
b85eb797 | 7166 | { |
93313b94 JM |
7167 | if (c_parser_next_token_is (parser, CPP_SCOPE)) |
7168 | { | |
7169 | ++section; | |
7170 | if (section == nsections) | |
7171 | { | |
7172 | c_parser_error (parser, "expected %<)%>"); | |
7173 | goto error_close_paren; | |
7174 | } | |
7175 | c_parser_consume_token (parser); | |
7176 | } | |
7177 | else if (!c_parser_require (parser, CPP_COLON, | |
7178 | is_goto | |
7179 | ? G_("expected %<:%>") | |
7180 | : G_("expected %<:%> or %<)%>"), | |
7181 | UNKNOWN_LOCATION, is_goto)) | |
1c384bf1 RH |
7182 | goto error_close_paren; |
7183 | ||
7184 | /* Once past any colon, we're no longer a simple asm. */ | |
7185 | simple = false; | |
7186 | ||
7187 | if ((!c_parser_next_token_is (parser, CPP_COLON) | |
93313b94 | 7188 | && !c_parser_next_token_is (parser, CPP_SCOPE) |
1c384bf1 RH |
7189 | && !c_parser_next_token_is (parser, CPP_CLOSE_PAREN)) |
7190 | || section == 3) | |
7191 | switch (section) | |
7192 | { | |
7193 | case 0: | |
7194 | /* For asm goto, we don't allow output operands, but reserve | |
7195 | the slot for a future extension that does allow them. */ | |
7196 | if (!is_goto) | |
eadd3d0d | 7197 | outputs = c_parser_asm_operands (parser); |
1c384bf1 RH |
7198 | break; |
7199 | case 1: | |
eadd3d0d | 7200 | inputs = c_parser_asm_operands (parser); |
1c384bf1 RH |
7201 | break; |
7202 | case 2: | |
7203 | clobbers = c_parser_asm_clobbers (parser); | |
7204 | break; | |
7205 | case 3: | |
7206 | labels = c_parser_asm_goto_operands (parser); | |
7207 | break; | |
7208 | default: | |
7209 | gcc_unreachable (); | |
7210 | } | |
7211 | ||
7212 | if (c_parser_next_token_is (parser, CPP_CLOSE_PAREN) && !is_goto) | |
7213 | goto done_asm; | |
27bf414c | 7214 | } |
1c384bf1 | 7215 | |
27bf414c | 7216 | done_asm: |
32129a17 | 7217 | if (!parens.require_close (parser)) |
27bf414c JM |
7218 | { |
7219 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, NULL); | |
1c384bf1 | 7220 | goto error; |
27bf414c | 7221 | } |
1c384bf1 | 7222 | |
27bf414c JM |
7223 | if (!c_parser_require (parser, CPP_SEMICOLON, "expected %<;%>")) |
7224 | c_parser_skip_to_end_of_block_or_statement (parser); | |
1c384bf1 | 7225 | |
db4fd626 SB |
7226 | ret = build_asm_stmt (is_volatile, |
7227 | build_asm_expr (asm_loc, str, outputs, inputs, | |
7228 | clobbers, labels, simple, is_inline)); | |
1c384bf1 RH |
7229 | |
7230 | error: | |
27bf414c | 7231 | return ret; |
1c384bf1 RH |
7232 | |
7233 | error_close_paren: | |
7234 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, NULL); | |
7235 | goto error; | |
27bf414c JM |
7236 | } |
7237 | ||
eadd3d0d | 7238 | /* Parse asm operands, a GNU extension. |
27bf414c JM |
7239 | |
7240 | asm-operands: | |
7241 | asm-operand | |
7242 | asm-operands , asm-operand | |
7243 | ||
7244 | asm-operand: | |
7245 | asm-string-literal ( expression ) | |
7246 | [ identifier ] asm-string-literal ( expression ) | |
7247 | */ | |
7248 | ||
7249 | static tree | |
eadd3d0d | 7250 | c_parser_asm_operands (c_parser *parser) |
27bf414c JM |
7251 | { |
7252 | tree list = NULL_TREE; | |
7253 | while (true) | |
7254 | { | |
f2a71bbc JM |
7255 | tree name, str; |
7256 | struct c_expr expr; | |
27bf414c JM |
7257 | if (c_parser_next_token_is (parser, CPP_OPEN_SQUARE)) |
7258 | { | |
7259 | c_parser_consume_token (parser); | |
7260 | if (c_parser_next_token_is (parser, CPP_NAME)) | |
7261 | { | |
7262 | tree id = c_parser_peek_token (parser)->value; | |
7263 | c_parser_consume_token (parser); | |
7264 | name = build_string (IDENTIFIER_LENGTH (id), | |
7265 | IDENTIFIER_POINTER (id)); | |
7266 | } | |
7267 | else | |
7268 | { | |
7269 | c_parser_error (parser, "expected identifier"); | |
7270 | c_parser_skip_until_found (parser, CPP_CLOSE_SQUARE, NULL); | |
7271 | return NULL_TREE; | |
7272 | } | |
7273 | c_parser_skip_until_found (parser, CPP_CLOSE_SQUARE, | |
7274 | "expected %<]%>"); | |
7275 | } | |
7276 | else | |
7277 | name = NULL_TREE; | |
7278 | str = c_parser_asm_string_literal (parser); | |
7279 | if (str == NULL_TREE) | |
7280 | return NULL_TREE; | |
32129a17 DM |
7281 | matching_parens parens; |
7282 | if (!parens.require_open (parser)) | |
471c5330 | 7283 | return NULL_TREE; |
f2a71bbc | 7284 | expr = c_parser_expression (parser); |
ebfbbdc5 | 7285 | mark_exp_read (expr.value); |
32129a17 | 7286 | if (!parens.require_close (parser)) |
27bf414c JM |
7287 | { |
7288 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, NULL); | |
7289 | return NULL_TREE; | |
7290 | } | |
7291 | list = chainon (list, build_tree_list (build_tree_list (name, str), | |
f2a71bbc | 7292 | expr.value)); |
27bf414c JM |
7293 | if (c_parser_next_token_is (parser, CPP_COMMA)) |
7294 | c_parser_consume_token (parser); | |
7295 | else | |
7296 | break; | |
7297 | } | |
7298 | return list; | |
7299 | } | |
7300 | ||
7301 | /* Parse asm clobbers, a GNU extension. | |
7302 | ||
7303 | asm-clobbers: | |
7304 | asm-string-literal | |
7305 | asm-clobbers , asm-string-literal | |
7306 | */ | |
7307 | ||
7308 | static tree | |
7309 | c_parser_asm_clobbers (c_parser *parser) | |
7310 | { | |
7311 | tree list = NULL_TREE; | |
7312 | while (true) | |
7313 | { | |
7314 | tree str = c_parser_asm_string_literal (parser); | |
7315 | if (str) | |
7316 | list = tree_cons (NULL_TREE, str, list); | |
7317 | else | |
7318 | return NULL_TREE; | |
7319 | if (c_parser_next_token_is (parser, CPP_COMMA)) | |
7320 | c_parser_consume_token (parser); | |
7321 | else | |
7322 | break; | |
7323 | } | |
7324 | return list; | |
7325 | } | |
7326 | ||
1c384bf1 | 7327 | /* Parse asm goto labels, a GNU extension. |
b8698a0f | 7328 | |
1c384bf1 RH |
7329 | asm-goto-operands: |
7330 | identifier | |
7331 | asm-goto-operands , identifier | |
7332 | */ | |
7333 | ||
7334 | static tree | |
7335 | c_parser_asm_goto_operands (c_parser *parser) | |
7336 | { | |
7337 | tree list = NULL_TREE; | |
7338 | while (true) | |
7339 | { | |
7340 | tree name, label; | |
7341 | ||
7342 | if (c_parser_next_token_is (parser, CPP_NAME)) | |
7343 | { | |
7344 | c_token *tok = c_parser_peek_token (parser); | |
7345 | name = tok->value; | |
7346 | label = lookup_label_for_goto (tok->location, name); | |
7347 | c_parser_consume_token (parser); | |
7348 | TREE_USED (label) = 1; | |
7349 | } | |
7350 | else | |
7351 | { | |
7352 | c_parser_error (parser, "expected identifier"); | |
7353 | return NULL_TREE; | |
7354 | } | |
7355 | ||
7356 | name = build_string (IDENTIFIER_LENGTH (name), | |
7357 | IDENTIFIER_POINTER (name)); | |
7358 | list = tree_cons (name, label, list); | |
7359 | if (c_parser_next_token_is (parser, CPP_COMMA)) | |
7360 | c_parser_consume_token (parser); | |
7361 | else | |
7362 | return nreverse (list); | |
7363 | } | |
7364 | } | |
7365 | ||
471c5330 JM |
7366 | /* Parse a possibly concatenated sequence of string literals. |
7367 | TRANSLATE says whether to translate them to the execution character | |
7368 | set; WIDE_OK says whether any kind of prefixed string literal is | |
7369 | permitted in this context. This code is based on that in | |
7370 | lex_string. */ | |
7371 | ||
7372 | struct c_expr | |
7373 | c_parser_string_literal (c_parser *parser, bool translate, bool wide_ok) | |
7374 | { | |
7375 | struct c_expr ret; | |
7376 | size_t count; | |
7377 | struct obstack str_ob; | |
7378 | struct obstack loc_ob; | |
7379 | cpp_string str, istr, *strs; | |
7380 | c_token *tok; | |
7381 | location_t loc, last_tok_loc; | |
7382 | enum cpp_ttype type; | |
7383 | tree value, string_tree; | |
7384 | ||
7385 | tok = c_parser_peek_token (parser); | |
7386 | loc = tok->location; | |
7387 | last_tok_loc = linemap_resolve_location (line_table, loc, | |
7388 | LRK_MACRO_DEFINITION_LOCATION, | |
7389 | NULL); | |
7390 | type = tok->type; | |
7391 | switch (type) | |
7392 | { | |
7393 | case CPP_STRING: | |
7394 | case CPP_WSTRING: | |
7395 | case CPP_STRING16: | |
7396 | case CPP_STRING32: | |
7397 | case CPP_UTF8STRING: | |
7398 | string_tree = tok->value; | |
7399 | break; | |
7400 | ||
7401 | default: | |
7402 | c_parser_error (parser, "expected string literal"); | |
7403 | ret.set_error (); | |
7404 | ret.value = NULL_TREE; | |
7405 | ret.original_code = ERROR_MARK; | |
7406 | ret.original_type = NULL_TREE; | |
7407 | return ret; | |
7408 | } | |
7409 | ||
7410 | /* Try to avoid the overhead of creating and destroying an obstack | |
7411 | for the common case of just one string. */ | |
7412 | switch (c_parser_peek_2nd_token (parser)->type) | |
7413 | { | |
7414 | default: | |
7415 | c_parser_consume_token (parser); | |
7416 | str.text = (const unsigned char *) TREE_STRING_POINTER (string_tree); | |
7417 | str.len = TREE_STRING_LENGTH (string_tree); | |
7418 | count = 1; | |
7419 | strs = &str; | |
7420 | break; | |
7421 | ||
7422 | case CPP_STRING: | |
7423 | case CPP_WSTRING: | |
7424 | case CPP_STRING16: | |
7425 | case CPP_STRING32: | |
7426 | case CPP_UTF8STRING: | |
7427 | gcc_obstack_init (&str_ob); | |
7428 | gcc_obstack_init (&loc_ob); | |
7429 | count = 0; | |
7430 | do | |
7431 | { | |
7432 | c_parser_consume_token (parser); | |
7433 | count++; | |
7434 | str.text = (const unsigned char *) TREE_STRING_POINTER (string_tree); | |
7435 | str.len = TREE_STRING_LENGTH (string_tree); | |
7436 | if (type != tok->type) | |
7437 | { | |
7438 | if (type == CPP_STRING) | |
7439 | type = tok->type; | |
7440 | else if (tok->type != CPP_STRING) | |
7441 | error ("unsupported non-standard concatenation " | |
7442 | "of string literals"); | |
7443 | } | |
7444 | obstack_grow (&str_ob, &str, sizeof (cpp_string)); | |
7445 | obstack_grow (&loc_ob, &last_tok_loc, sizeof (location_t)); | |
7446 | tok = c_parser_peek_token (parser); | |
7447 | string_tree = tok->value; | |
7448 | last_tok_loc | |
7449 | = linemap_resolve_location (line_table, tok->location, | |
7450 | LRK_MACRO_DEFINITION_LOCATION, NULL); | |
7451 | } | |
7452 | while (tok->type == CPP_STRING | |
7453 | || tok->type == CPP_WSTRING | |
7454 | || tok->type == CPP_STRING16 | |
7455 | || tok->type == CPP_STRING32 | |
7456 | || tok->type == CPP_UTF8STRING); | |
7457 | strs = (cpp_string *) obstack_finish (&str_ob); | |
7458 | } | |
7459 | ||
7460 | if (count > 1 && !in_system_header_at (input_location)) | |
7461 | warning (OPT_Wtraditional, | |
7462 | "traditional C rejects string constant concatenation"); | |
7463 | ||
7464 | if ((type == CPP_STRING || wide_ok) | |
7465 | && ((translate | |
7466 | ? cpp_interpret_string : cpp_interpret_string_notranslate) | |
7467 | (parse_in, strs, count, &istr, type))) | |
7468 | { | |
7469 | value = build_string (istr.len, (const char *) istr.text); | |
7470 | free (CONST_CAST (unsigned char *, istr.text)); | |
7471 | if (count > 1) | |
7472 | { | |
7473 | location_t *locs = (location_t *) obstack_finish (&loc_ob); | |
7474 | gcc_assert (g_string_concat_db); | |
7475 | g_string_concat_db->record_string_concatenation (count, locs); | |
7476 | } | |
7477 | } | |
7478 | else | |
7479 | { | |
7480 | if (type != CPP_STRING && !wide_ok) | |
7481 | { | |
7482 | error_at (loc, "a wide string is invalid in this context"); | |
7483 | type = CPP_STRING; | |
7484 | } | |
7485 | /* Callers cannot generally handle error_mark_node in this | |
7486 | context, so return the empty string instead. An error has | |
7487 | been issued, either above or from cpp_interpret_string. */ | |
7488 | switch (type) | |
7489 | { | |
7490 | default: | |
7491 | case CPP_STRING: | |
7492 | case CPP_UTF8STRING: | |
7493 | value = build_string (1, ""); | |
7494 | break; | |
7495 | case CPP_STRING16: | |
7496 | value = build_string (TYPE_PRECISION (char16_type_node) | |
7497 | / TYPE_PRECISION (char_type_node), | |
7498 | "\0"); /* char16_t is 16 bits */ | |
7499 | break; | |
7500 | case CPP_STRING32: | |
7501 | value = build_string (TYPE_PRECISION (char32_type_node) | |
7502 | / TYPE_PRECISION (char_type_node), | |
7503 | "\0\0\0"); /* char32_t is 32 bits */ | |
7504 | break; | |
7505 | case CPP_WSTRING: | |
7506 | value = build_string (TYPE_PRECISION (wchar_type_node) | |
7507 | / TYPE_PRECISION (char_type_node), | |
7508 | "\0\0\0"); /* widest supported wchar_t | |
7509 | is 32 bits */ | |
7510 | break; | |
7511 | } | |
7512 | } | |
7513 | ||
7514 | switch (type) | |
7515 | { | |
7516 | default: | |
7517 | case CPP_STRING: | |
7518 | case CPP_UTF8STRING: | |
7519 | TREE_TYPE (value) = char_array_type_node; | |
7520 | break; | |
7521 | case CPP_STRING16: | |
7522 | TREE_TYPE (value) = char16_array_type_node; | |
7523 | break; | |
7524 | case CPP_STRING32: | |
7525 | TREE_TYPE (value) = char32_array_type_node; | |
7526 | break; | |
7527 | case CPP_WSTRING: | |
7528 | TREE_TYPE (value) = wchar_array_type_node; | |
7529 | } | |
7530 | value = fix_string_type (value); | |
7531 | ||
7532 | if (count > 1) | |
7533 | { | |
7534 | obstack_free (&str_ob, 0); | |
7535 | obstack_free (&loc_ob, 0); | |
7536 | } | |
7537 | ||
7538 | ret.value = value; | |
7539 | ret.original_code = STRING_CST; | |
7540 | ret.original_type = NULL_TREE; | |
7541 | set_c_expr_source_range (&ret, get_range_from_loc (line_table, loc)); | |
7542 | return ret; | |
7543 | } | |
7544 | ||
27bf414c | 7545 | /* Parse an expression other than a compound expression; that is, an |
31dc71a8 MP |
7546 | assignment expression (C90 6.3.16, C99 6.5.16, C11 6.5.16). If |
7547 | AFTER is not NULL then it is an Objective-C message expression which | |
7548 | is the primary-expression starting the expression as an initializer. | |
27bf414c JM |
7549 | |
7550 | assignment-expression: | |
7551 | conditional-expression | |
7552 | unary-expression assignment-operator assignment-expression | |
7553 | ||
7554 | assignment-operator: one of | |
7555 | = *= /= %= += -= <<= >>= &= ^= |= | |
7556 | ||
7557 | In GNU C we accept any conditional expression on the LHS and | |
7558 | diagnose the invalid lvalue rather than producing a syntax | |
7559 | error. */ | |
7560 | ||
7561 | static struct c_expr | |
acf0174b JJ |
7562 | c_parser_expr_no_commas (c_parser *parser, struct c_expr *after, |
7563 | tree omp_atomic_lhs) | |
27bf414c JM |
7564 | { |
7565 | struct c_expr lhs, rhs, ret; | |
7566 | enum tree_code code; | |
c2255bc4 | 7567 | location_t op_location, exp_location; |
27bf414c | 7568 | gcc_assert (!after || c_dialect_objc ()); |
acf0174b | 7569 | lhs = c_parser_conditional_expression (parser, after, omp_atomic_lhs); |
c9f9eb5d | 7570 | op_location = c_parser_peek_token (parser)->location; |
27bf414c JM |
7571 | switch (c_parser_peek_token (parser)->type) |
7572 | { | |
7573 | case CPP_EQ: | |
7574 | code = NOP_EXPR; | |
7575 | break; | |
7576 | case CPP_MULT_EQ: | |
7577 | code = MULT_EXPR; | |
7578 | break; | |
7579 | case CPP_DIV_EQ: | |
7580 | code = TRUNC_DIV_EXPR; | |
7581 | break; | |
7582 | case CPP_MOD_EQ: | |
7583 | code = TRUNC_MOD_EXPR; | |
7584 | break; | |
7585 | case CPP_PLUS_EQ: | |
7586 | code = PLUS_EXPR; | |
7587 | break; | |
7588 | case CPP_MINUS_EQ: | |
7589 | code = MINUS_EXPR; | |
7590 | break; | |
7591 | case CPP_LSHIFT_EQ: | |
7592 | code = LSHIFT_EXPR; | |
7593 | break; | |
7594 | case CPP_RSHIFT_EQ: | |
7595 | code = RSHIFT_EXPR; | |
7596 | break; | |
7597 | case CPP_AND_EQ: | |
7598 | code = BIT_AND_EXPR; | |
7599 | break; | |
7600 | case CPP_XOR_EQ: | |
7601 | code = BIT_XOR_EXPR; | |
7602 | break; | |
7603 | case CPP_OR_EQ: | |
7604 | code = BIT_IOR_EXPR; | |
7605 | break; | |
7606 | default: | |
7607 | return lhs; | |
7608 | } | |
7609 | c_parser_consume_token (parser); | |
c2255bc4 | 7610 | exp_location = c_parser_peek_token (parser)->location; |
27bf414c | 7611 | rhs = c_parser_expr_no_commas (parser, NULL); |
267bac10 | 7612 | rhs = convert_lvalue_to_rvalue (exp_location, rhs, true, true); |
36536d79 | 7613 | |
25c22937 BI |
7614 | ret.value = build_modify_expr (op_location, lhs.value, lhs.original_type, |
7615 | code, exp_location, rhs.value, | |
7616 | rhs.original_type); | |
ebedc9a3 | 7617 | set_c_expr_source_range (&ret, lhs.get_start (), rhs.get_finish ()); |
27bf414c JM |
7618 | if (code == NOP_EXPR) |
7619 | ret.original_code = MODIFY_EXPR; | |
7620 | else | |
7621 | { | |
7622 | TREE_NO_WARNING (ret.value) = 1; | |
7623 | ret.original_code = ERROR_MARK; | |
7624 | } | |
6866c6e8 | 7625 | ret.original_type = NULL; |
27bf414c JM |
7626 | return ret; |
7627 | } | |
7628 | ||
31dc71a8 MP |
7629 | /* Parse a conditional expression (C90 6.3.15, C99 6.5.15, C11 6.5.15). If |
7630 | AFTER is not NULL then it is an Objective-C message expression which is | |
27bf414c JM |
7631 | the primary-expression starting the expression as an initializer. |
7632 | ||
7633 | conditional-expression: | |
7634 | logical-OR-expression | |
7635 | logical-OR-expression ? expression : conditional-expression | |
7636 | ||
7637 | GNU extensions: | |
7638 | ||
7639 | conditional-expression: | |
7640 | logical-OR-expression ? : conditional-expression | |
7641 | */ | |
7642 | ||
7643 | static struct c_expr | |
acf0174b JJ |
7644 | c_parser_conditional_expression (c_parser *parser, struct c_expr *after, |
7645 | tree omp_atomic_lhs) | |
27bf414c JM |
7646 | { |
7647 | struct c_expr cond, exp1, exp2, ret; | |
a32c8316 | 7648 | location_t start, cond_loc, colon_loc; |
ba47d38d | 7649 | |
27bf414c | 7650 | gcc_assert (!after || c_dialect_objc ()); |
ba47d38d | 7651 | |
acf0174b | 7652 | cond = c_parser_binary_expression (parser, after, omp_atomic_lhs); |
ba47d38d | 7653 | |
27bf414c JM |
7654 | if (c_parser_next_token_is_not (parser, CPP_QUERY)) |
7655 | return cond; | |
ebedc9a3 DM |
7656 | if (cond.value != error_mark_node) |
7657 | start = cond.get_start (); | |
7658 | else | |
7659 | start = UNKNOWN_LOCATION; | |
c2255bc4 | 7660 | cond_loc = c_parser_peek_token (parser)->location; |
267bac10 | 7661 | cond = convert_lvalue_to_rvalue (cond_loc, cond, true, true); |
27bf414c JM |
7662 | c_parser_consume_token (parser); |
7663 | if (c_parser_next_token_is (parser, CPP_COLON)) | |
7664 | { | |
8ce94e44 | 7665 | tree eptype = NULL_TREE; |
d166d4c3 | 7666 | |
a32c8316 | 7667 | location_t middle_loc = c_parser_peek_token (parser)->location; |
54dcdb88 | 7668 | pedwarn (middle_loc, OPT_Wpedantic, |
a9c697b8 | 7669 | "ISO C forbids omitting the middle term of a %<?:%> expression"); |
8ce94e44 JM |
7670 | if (TREE_CODE (cond.value) == EXCESS_PRECISION_EXPR) |
7671 | { | |
7672 | eptype = TREE_TYPE (cond.value); | |
7673 | cond.value = TREE_OPERAND (cond.value, 0); | |
7674 | } | |
54dcdb88 BE |
7675 | tree e = cond.value; |
7676 | while (TREE_CODE (e) == COMPOUND_EXPR) | |
7677 | e = TREE_OPERAND (e, 1); | |
7678 | warn_for_omitted_condop (middle_loc, e); | |
27bf414c | 7679 | /* Make sure first operand is calculated only once. */ |
b2fa0a8b | 7680 | exp1.value = save_expr (default_conversion (cond.value)); |
8ce94e44 JM |
7681 | if (eptype) |
7682 | exp1.value = build1 (EXCESS_PRECISION_EXPR, eptype, exp1.value); | |
6866c6e8 | 7683 | exp1.original_type = NULL; |
a32c8316 | 7684 | exp1.src_range = cond.src_range; |
ba47d38d | 7685 | cond.value = c_objc_common_truthvalue_conversion (cond_loc, exp1.value); |
7d882b83 | 7686 | c_inhibit_evaluation_warnings += cond.value == truthvalue_true_node; |
27bf414c JM |
7687 | } |
7688 | else | |
7689 | { | |
7690 | cond.value | |
85498824 | 7691 | = c_objc_common_truthvalue_conversion |
ba47d38d | 7692 | (cond_loc, default_conversion (cond.value)); |
7d882b83 | 7693 | c_inhibit_evaluation_warnings += cond.value == truthvalue_false_node; |
46bdb9cf | 7694 | exp1 = c_parser_expression_conv (parser); |
ebfbbdc5 | 7695 | mark_exp_read (exp1.value); |
7d882b83 ILT |
7696 | c_inhibit_evaluation_warnings += |
7697 | ((cond.value == truthvalue_true_node) | |
7698 | - (cond.value == truthvalue_false_node)); | |
27bf414c | 7699 | } |
744aa42f ILT |
7700 | |
7701 | colon_loc = c_parser_peek_token (parser)->location; | |
27bf414c JM |
7702 | if (!c_parser_require (parser, CPP_COLON, "expected %<:%>")) |
7703 | { | |
7d882b83 | 7704 | c_inhibit_evaluation_warnings -= cond.value == truthvalue_true_node; |
913884f7 | 7705 | ret.set_error (); |
27bf414c | 7706 | ret.original_code = ERROR_MARK; |
6866c6e8 | 7707 | ret.original_type = NULL; |
27bf414c JM |
7708 | return ret; |
7709 | } | |
c2255bc4 AH |
7710 | { |
7711 | location_t exp2_loc = c_parser_peek_token (parser)->location; | |
acf0174b | 7712 | exp2 = c_parser_conditional_expression (parser, NULL, NULL_TREE); |
267bac10 | 7713 | exp2 = convert_lvalue_to_rvalue (exp2_loc, exp2, true, true); |
c2255bc4 | 7714 | } |
7d882b83 | 7715 | c_inhibit_evaluation_warnings -= cond.value == truthvalue_true_node; |
a32c8316 MP |
7716 | location_t loc1 = make_location (exp1.get_start (), exp1.src_range); |
7717 | location_t loc2 = make_location (exp2.get_start (), exp2.src_range); | |
744aa42f | 7718 | ret.value = build_conditional_expr (colon_loc, cond.value, |
928c19bb | 7719 | cond.original_code == C_MAYBE_CONST_EXPR, |
a32c8316 MP |
7720 | exp1.value, exp1.original_type, loc1, |
7721 | exp2.value, exp2.original_type, loc2); | |
27bf414c | 7722 | ret.original_code = ERROR_MARK; |
6866c6e8 ILT |
7723 | if (exp1.value == error_mark_node || exp2.value == error_mark_node) |
7724 | ret.original_type = NULL; | |
7725 | else | |
7726 | { | |
7727 | tree t1, t2; | |
7728 | ||
7729 | /* If both sides are enum type, the default conversion will have | |
7730 | made the type of the result be an integer type. We want to | |
7731 | remember the enum types we started with. */ | |
7732 | t1 = exp1.original_type ? exp1.original_type : TREE_TYPE (exp1.value); | |
7733 | t2 = exp2.original_type ? exp2.original_type : TREE_TYPE (exp2.value); | |
7734 | ret.original_type = ((t1 != error_mark_node | |
7735 | && t2 != error_mark_node | |
7736 | && (TYPE_MAIN_VARIANT (t1) | |
7737 | == TYPE_MAIN_VARIANT (t2))) | |
7738 | ? t1 | |
7739 | : NULL); | |
7740 | } | |
ebedc9a3 | 7741 | set_c_expr_source_range (&ret, start, exp2.get_finish ()); |
27bf414c JM |
7742 | return ret; |
7743 | } | |
7744 | ||
7745 | /* Parse a binary expression; that is, a logical-OR-expression (C90 | |
31dc71a8 MP |
7746 | 6.3.5-6.3.14, C99 6.5.5-6.5.14, C11 6.5.5-6.5.14). If AFTER is not |
7747 | NULL then it is an Objective-C message expression which is the | |
7748 | primary-expression starting the expression as an initializer. | |
acf0174b JJ |
7749 | |
7750 | OMP_ATOMIC_LHS is NULL, unless parsing OpenMP #pragma omp atomic, | |
7751 | when it should be the unfolded lhs. In a valid OpenMP source, | |
7752 | one of the operands of the toplevel binary expression must be equal | |
7753 | to it. In that case, just return a build2 created binary operation | |
7754 | rather than result of parser_build_binary_op. | |
27bf414c JM |
7755 | |
7756 | multiplicative-expression: | |
7757 | cast-expression | |
7758 | multiplicative-expression * cast-expression | |
7759 | multiplicative-expression / cast-expression | |
7760 | multiplicative-expression % cast-expression | |
7761 | ||
7762 | additive-expression: | |
7763 | multiplicative-expression | |
7764 | additive-expression + multiplicative-expression | |
7765 | additive-expression - multiplicative-expression | |
7766 | ||
7767 | shift-expression: | |
7768 | additive-expression | |
7769 | shift-expression << additive-expression | |
7770 | shift-expression >> additive-expression | |
7771 | ||
7772 | relational-expression: | |
7773 | shift-expression | |
7774 | relational-expression < shift-expression | |
7775 | relational-expression > shift-expression | |
7776 | relational-expression <= shift-expression | |
7777 | relational-expression >= shift-expression | |
7778 | ||
7779 | equality-expression: | |
7780 | relational-expression | |
7781 | equality-expression == relational-expression | |
7782 | equality-expression != relational-expression | |
7783 | ||
7784 | AND-expression: | |
7785 | equality-expression | |
7786 | AND-expression & equality-expression | |
7787 | ||
7788 | exclusive-OR-expression: | |
7789 | AND-expression | |
7790 | exclusive-OR-expression ^ AND-expression | |
7791 | ||
7792 | inclusive-OR-expression: | |
7793 | exclusive-OR-expression | |
7794 | inclusive-OR-expression | exclusive-OR-expression | |
7795 | ||
7796 | logical-AND-expression: | |
7797 | inclusive-OR-expression | |
7798 | logical-AND-expression && inclusive-OR-expression | |
7799 | ||
7800 | logical-OR-expression: | |
7801 | logical-AND-expression | |
7802 | logical-OR-expression || logical-AND-expression | |
7803 | */ | |
7804 | ||
7805 | static struct c_expr | |
20906c66 | 7806 | c_parser_binary_expression (c_parser *parser, struct c_expr *after, |
acf0174b | 7807 | tree omp_atomic_lhs) |
27bf414c JM |
7808 | { |
7809 | /* A binary expression is parsed using operator-precedence parsing, | |
7810 | with the operands being cast expressions. All the binary | |
7811 | operators are left-associative. Thus a binary expression is of | |
7812 | form: | |
7813 | ||
7814 | E0 op1 E1 op2 E2 ... | |
7815 | ||
7816 | which we represent on a stack. On the stack, the precedence | |
7817 | levels are strictly increasing. When a new operator is | |
7818 | encountered of higher precedence than that at the top of the | |
7819 | stack, it is pushed; its LHS is the top expression, and its RHS | |
7820 | is everything parsed until it is popped. When a new operator is | |
7821 | encountered with precedence less than or equal to that at the top | |
7822 | of the stack, triples E[i-1] op[i] E[i] are popped and replaced | |
7823 | by the result of the operation until the operator at the top of | |
7824 | the stack has lower precedence than the new operator or there is | |
7825 | only one element on the stack; then the top expression is the LHS | |
7826 | of the new operator. In the case of logical AND and OR | |
7d882b83 ILT |
7827 | expressions, we also need to adjust c_inhibit_evaluation_warnings |
7828 | as appropriate when the operators are pushed and popped. */ | |
27bf414c | 7829 | |
27bf414c JM |
7830 | struct { |
7831 | /* The expression at this stack level. */ | |
7832 | struct c_expr expr; | |
7833 | /* The precedence of the operator on its left, PREC_NONE at the | |
7834 | bottom of the stack. */ | |
20906c66 | 7835 | enum c_parser_prec prec; |
27bf414c JM |
7836 | /* The operation on its left. */ |
7837 | enum tree_code op; | |
ca80e52b EB |
7838 | /* The source location of this operation. */ |
7839 | location_t loc; | |
40ffd95f BE |
7840 | /* The sizeof argument if expr.original_code == SIZEOF_EXPR. */ |
7841 | tree sizeof_arg; | |
27bf414c JM |
7842 | } stack[NUM_PRECS]; |
7843 | int sp; | |
ba47d38d | 7844 | /* Location of the binary operator. */ |
1f6d0c60 | 7845 | location_t binary_loc = UNKNOWN_LOCATION; /* Quiet warning. */ |
27bf414c JM |
7846 | #define POP \ |
7847 | do { \ | |
7848 | switch (stack[sp].op) \ | |
7849 | { \ | |
7850 | case TRUTH_ANDIF_EXPR: \ | |
7d882b83 ILT |
7851 | c_inhibit_evaluation_warnings -= (stack[sp - 1].expr.value \ |
7852 | == truthvalue_false_node); \ | |
27bf414c JM |
7853 | break; \ |
7854 | case TRUTH_ORIF_EXPR: \ | |
7d882b83 ILT |
7855 | c_inhibit_evaluation_warnings -= (stack[sp - 1].expr.value \ |
7856 | == truthvalue_true_node); \ | |
27bf414c | 7857 | break; \ |
40ffd95f BE |
7858 | case TRUNC_DIV_EXPR: \ |
7859 | if (stack[sp - 1].expr.original_code == SIZEOF_EXPR \ | |
7860 | && stack[sp].expr.original_code == SIZEOF_EXPR) \ | |
7861 | { \ | |
7862 | tree type0 = stack[sp - 1].sizeof_arg; \ | |
7863 | tree type1 = stack[sp].sizeof_arg; \ | |
7864 | tree first_arg = type0; \ | |
7865 | if (!TYPE_P (type0)) \ | |
7866 | type0 = TREE_TYPE (type0); \ | |
7867 | if (!TYPE_P (type1)) \ | |
7868 | type1 = TREE_TYPE (type1); \ | |
7869 | if (POINTER_TYPE_P (type0) \ | |
7870 | && comptypes (TREE_TYPE (type0), type1) \ | |
7871 | && !(TREE_CODE (first_arg) == PARM_DECL \ | |
7872 | && C_ARRAY_PARAMETER (first_arg) \ | |
7873 | && warn_sizeof_array_argument)) \ | |
097f82ec DM |
7874 | { \ |
7875 | auto_diagnostic_group d; \ | |
7876 | if (warning_at (stack[sp].loc, OPT_Wsizeof_pointer_div, \ | |
7877 | "division %<sizeof (%T) / sizeof (%T)%> " \ | |
7878 | "does not compute the number of array " \ | |
7879 | "elements", \ | |
7880 | type0, type1)) \ | |
7881 | if (DECL_P (first_arg)) \ | |
7882 | inform (DECL_SOURCE_LOCATION (first_arg), \ | |
7883 | "first %<sizeof%> operand was declared here"); \ | |
7884 | } \ | |
7885 | } \ | |
40ffd95f | 7886 | break; \ |
27bf414c JM |
7887 | default: \ |
7888 | break; \ | |
7889 | } \ | |
f2a71bbc | 7890 | stack[sp - 1].expr \ |
267bac10 JM |
7891 | = convert_lvalue_to_rvalue (stack[sp - 1].loc, \ |
7892 | stack[sp - 1].expr, true, true); \ | |
f2a71bbc | 7893 | stack[sp].expr \ |
267bac10 JM |
7894 | = convert_lvalue_to_rvalue (stack[sp].loc, \ |
7895 | stack[sp].expr, true, true); \ | |
acf0174b JJ |
7896 | if (__builtin_expect (omp_atomic_lhs != NULL_TREE, 0) && sp == 1 \ |
7897 | && c_parser_peek_token (parser)->type == CPP_SEMICOLON \ | |
7898 | && ((1 << stack[sp].prec) \ | |
fa01ffcc JJ |
7899 | & ((1 << PREC_BITOR) | (1 << PREC_BITXOR) | (1 << PREC_BITAND) \ |
7900 | | (1 << PREC_SHIFT) | (1 << PREC_ADD) | (1 << PREC_MULT))) \ | |
acf0174b JJ |
7901 | && stack[sp].op != TRUNC_MOD_EXPR \ |
7902 | && stack[0].expr.value != error_mark_node \ | |
7903 | && stack[1].expr.value != error_mark_node \ | |
7904 | && (c_tree_equal (stack[0].expr.value, omp_atomic_lhs) \ | |
7905 | || c_tree_equal (stack[1].expr.value, omp_atomic_lhs))) \ | |
7906 | stack[0].expr.value \ | |
7907 | = build2 (stack[1].op, TREE_TYPE (stack[0].expr.value), \ | |
7908 | stack[0].expr.value, stack[1].expr.value); \ | |
7909 | else \ | |
7910 | stack[sp - 1].expr = parser_build_binary_op (stack[sp].loc, \ | |
7911 | stack[sp].op, \ | |
7912 | stack[sp - 1].expr, \ | |
7913 | stack[sp].expr); \ | |
27bf414c JM |
7914 | sp--; \ |
7915 | } while (0) | |
7916 | gcc_assert (!after || c_dialect_objc ()); | |
ca80e52b | 7917 | stack[0].loc = c_parser_peek_token (parser)->location; |
27bf414c | 7918 | stack[0].expr = c_parser_cast_expression (parser, after); |
acf0174b | 7919 | stack[0].prec = PREC_NONE; |
40ffd95f | 7920 | stack[0].sizeof_arg = c_last_sizeof_arg; |
27bf414c JM |
7921 | sp = 0; |
7922 | while (true) | |
7923 | { | |
20906c66 | 7924 | enum c_parser_prec oprec; |
27bf414c | 7925 | enum tree_code ocode; |
ebedc9a3 | 7926 | source_range src_range; |
27bf414c JM |
7927 | if (parser->error) |
7928 | goto out; | |
7929 | switch (c_parser_peek_token (parser)->type) | |
7930 | { | |
7931 | case CPP_MULT: | |
7932 | oprec = PREC_MULT; | |
7933 | ocode = MULT_EXPR; | |
7934 | break; | |
7935 | case CPP_DIV: | |
7936 | oprec = PREC_MULT; | |
7937 | ocode = TRUNC_DIV_EXPR; | |
7938 | break; | |
7939 | case CPP_MOD: | |
7940 | oprec = PREC_MULT; | |
7941 | ocode = TRUNC_MOD_EXPR; | |
7942 | break; | |
7943 | case CPP_PLUS: | |
7944 | oprec = PREC_ADD; | |
7945 | ocode = PLUS_EXPR; | |
7946 | break; | |
7947 | case CPP_MINUS: | |
7948 | oprec = PREC_ADD; | |
7949 | ocode = MINUS_EXPR; | |
7950 | break; | |
7951 | case CPP_LSHIFT: | |
7952 | oprec = PREC_SHIFT; | |
7953 | ocode = LSHIFT_EXPR; | |
7954 | break; | |
7955 | case CPP_RSHIFT: | |
7956 | oprec = PREC_SHIFT; | |
7957 | ocode = RSHIFT_EXPR; | |
7958 | break; | |
7959 | case CPP_LESS: | |
7960 | oprec = PREC_REL; | |
7961 | ocode = LT_EXPR; | |
7962 | break; | |
7963 | case CPP_GREATER: | |
7964 | oprec = PREC_REL; | |
7965 | ocode = GT_EXPR; | |
7966 | break; | |
7967 | case CPP_LESS_EQ: | |
7968 | oprec = PREC_REL; | |
7969 | ocode = LE_EXPR; | |
7970 | break; | |
7971 | case CPP_GREATER_EQ: | |
7972 | oprec = PREC_REL; | |
7973 | ocode = GE_EXPR; | |
7974 | break; | |
7975 | case CPP_EQ_EQ: | |
7976 | oprec = PREC_EQ; | |
7977 | ocode = EQ_EXPR; | |
7978 | break; | |
7979 | case CPP_NOT_EQ: | |
7980 | oprec = PREC_EQ; | |
7981 | ocode = NE_EXPR; | |
7982 | break; | |
7983 | case CPP_AND: | |
7984 | oprec = PREC_BITAND; | |
7985 | ocode = BIT_AND_EXPR; | |
7986 | break; | |
7987 | case CPP_XOR: | |
7988 | oprec = PREC_BITXOR; | |
7989 | ocode = BIT_XOR_EXPR; | |
7990 | break; | |
7991 | case CPP_OR: | |
7992 | oprec = PREC_BITOR; | |
7993 | ocode = BIT_IOR_EXPR; | |
7994 | break; | |
7995 | case CPP_AND_AND: | |
7996 | oprec = PREC_LOGAND; | |
7997 | ocode = TRUTH_ANDIF_EXPR; | |
7998 | break; | |
7999 | case CPP_OR_OR: | |
8000 | oprec = PREC_LOGOR; | |
8001 | ocode = TRUTH_ORIF_EXPR; | |
8002 | break; | |
8003 | default: | |
8004 | /* Not a binary operator, so end of the binary | |
8005 | expression. */ | |
8006 | goto out; | |
8007 | } | |
ba47d38d | 8008 | binary_loc = c_parser_peek_token (parser)->location; |
27bf414c | 8009 | while (oprec <= stack[sp].prec) |
acf0174b | 8010 | POP; |
20906c66 | 8011 | c_parser_consume_token (parser); |
27bf414c JM |
8012 | switch (ocode) |
8013 | { | |
8014 | case TRUTH_ANDIF_EXPR: | |
ebedc9a3 | 8015 | src_range = stack[sp].expr.src_range; |
f2a71bbc | 8016 | stack[sp].expr |
267bac10 JM |
8017 | = convert_lvalue_to_rvalue (stack[sp].loc, |
8018 | stack[sp].expr, true, true); | |
85498824 | 8019 | stack[sp].expr.value = c_objc_common_truthvalue_conversion |
ca80e52b | 8020 | (stack[sp].loc, default_conversion (stack[sp].expr.value)); |
7d882b83 ILT |
8021 | c_inhibit_evaluation_warnings += (stack[sp].expr.value |
8022 | == truthvalue_false_node); | |
ebedc9a3 | 8023 | set_c_expr_source_range (&stack[sp].expr, src_range); |
27bf414c JM |
8024 | break; |
8025 | case TRUTH_ORIF_EXPR: | |
ebedc9a3 | 8026 | src_range = stack[sp].expr.src_range; |
f2a71bbc | 8027 | stack[sp].expr |
267bac10 JM |
8028 | = convert_lvalue_to_rvalue (stack[sp].loc, |
8029 | stack[sp].expr, true, true); | |
85498824 | 8030 | stack[sp].expr.value = c_objc_common_truthvalue_conversion |
ca80e52b | 8031 | (stack[sp].loc, default_conversion (stack[sp].expr.value)); |
7d882b83 ILT |
8032 | c_inhibit_evaluation_warnings += (stack[sp].expr.value |
8033 | == truthvalue_true_node); | |
ebedc9a3 | 8034 | set_c_expr_source_range (&stack[sp].expr, src_range); |
27bf414c JM |
8035 | break; |
8036 | default: | |
8037 | break; | |
8038 | } | |
8039 | sp++; | |
ca80e52b | 8040 | stack[sp].loc = binary_loc; |
27bf414c JM |
8041 | stack[sp].expr = c_parser_cast_expression (parser, NULL); |
8042 | stack[sp].prec = oprec; | |
8043 | stack[sp].op = ocode; | |
40ffd95f | 8044 | stack[sp].sizeof_arg = c_last_sizeof_arg; |
27bf414c JM |
8045 | } |
8046 | out: | |
8047 | while (sp > 0) | |
8048 | POP; | |
8049 | return stack[0].expr; | |
8050 | #undef POP | |
8051 | } | |
8052 | ||
31dc71a8 MP |
8053 | /* Parse a cast expression (C90 6.3.4, C99 6.5.4, C11 6.5.4). If AFTER |
8054 | is not NULL then it is an Objective-C message expression which is the | |
27bf414c JM |
8055 | primary-expression starting the expression as an initializer. |
8056 | ||
8057 | cast-expression: | |
8058 | unary-expression | |
8059 | ( type-name ) unary-expression | |
8060 | */ | |
8061 | ||
8062 | static struct c_expr | |
8063 | c_parser_cast_expression (c_parser *parser, struct c_expr *after) | |
8064 | { | |
c2255bc4 | 8065 | location_t cast_loc = c_parser_peek_token (parser)->location; |
27bf414c JM |
8066 | gcc_assert (!after || c_dialect_objc ()); |
8067 | if (after) | |
c2255bc4 AH |
8068 | return c_parser_postfix_expression_after_primary (parser, |
8069 | cast_loc, *after); | |
27bf414c JM |
8070 | /* If the expression begins with a parenthesized type name, it may |
8071 | be either a cast or a compound literal; we need to see whether | |
8072 | the next character is '{' to tell the difference. If not, it is | |
29ce73cb PB |
8073 | an unary expression. Full detection of unknown typenames here |
8074 | would require a 3-token lookahead. */ | |
27bf414c JM |
8075 | if (c_parser_next_token_is (parser, CPP_OPEN_PAREN) |
8076 | && c_token_starts_typename (c_parser_peek_2nd_token (parser))) | |
8077 | { | |
8078 | struct c_type_name *type_name; | |
8079 | struct c_expr ret; | |
f2a71bbc | 8080 | struct c_expr expr; |
32129a17 DM |
8081 | matching_parens parens; |
8082 | parens.consume_open (parser); | |
4b2b493f | 8083 | type_name = c_parser_type_name (parser, true); |
32129a17 | 8084 | parens.skip_until_found_close (parser); |
27bf414c JM |
8085 | if (type_name == NULL) |
8086 | { | |
913884f7 | 8087 | ret.set_error (); |
27bf414c | 8088 | ret.original_code = ERROR_MARK; |
6866c6e8 | 8089 | ret.original_type = NULL; |
27bf414c JM |
8090 | return ret; |
8091 | } | |
33c9159e AH |
8092 | |
8093 | /* Save casted types in the function's used types hash table. */ | |
8d8d1a28 | 8094 | used_types_insert (type_name->specs->type); |
33c9159e | 8095 | |
27bf414c | 8096 | if (c_parser_next_token_is (parser, CPP_OPEN_BRACE)) |
24b97832 | 8097 | return c_parser_postfix_expression_after_paren_type (parser, type_name, |
c2255bc4 | 8098 | cast_loc); |
4b2b493f JM |
8099 | if (type_name->specs->alignas_p) |
8100 | error_at (type_name->specs->locations[cdw_alignas], | |
8101 | "alignment specified for type name in cast"); | |
c2255bc4 AH |
8102 | { |
8103 | location_t expr_loc = c_parser_peek_token (parser)->location; | |
8104 | expr = c_parser_cast_expression (parser, NULL); | |
267bac10 | 8105 | expr = convert_lvalue_to_rvalue (expr_loc, expr, true, true); |
c2255bc4 AH |
8106 | } |
8107 | ret.value = c_cast_expr (cast_loc, type_name, expr.value); | |
ebedc9a3 DM |
8108 | if (ret.value && expr.value) |
8109 | set_c_expr_source_range (&ret, cast_loc, expr.get_finish ()); | |
27bf414c | 8110 | ret.original_code = ERROR_MARK; |
6866c6e8 | 8111 | ret.original_type = NULL; |
27bf414c JM |
8112 | return ret; |
8113 | } | |
8114 | else | |
8115 | return c_parser_unary_expression (parser); | |
8116 | } | |
8117 | ||
31dc71a8 | 8118 | /* Parse an unary expression (C90 6.3.3, C99 6.5.3, C11 6.5.3). |
27bf414c JM |
8119 | |
8120 | unary-expression: | |
8121 | postfix-expression | |
8122 | ++ unary-expression | |
8123 | -- unary-expression | |
8124 | unary-operator cast-expression | |
8125 | sizeof unary-expression | |
8126 | sizeof ( type-name ) | |
8127 | ||
8128 | unary-operator: one of | |
8129 | & * + - ~ ! | |
8130 | ||
8131 | GNU extensions: | |
8132 | ||
8133 | unary-expression: | |
8134 | __alignof__ unary-expression | |
8135 | __alignof__ ( type-name ) | |
8136 | && identifier | |
8137 | ||
48b0b196 | 8138 | (C11 permits _Alignof with type names only.) |
d19fa6b5 | 8139 | |
27bf414c JM |
8140 | unary-operator: one of |
8141 | __extension__ __real__ __imag__ | |
8142 | ||
0a35513e AH |
8143 | Transactional Memory: |
8144 | ||
8145 | unary-expression: | |
8146 | transaction-expression | |
8147 | ||
27bf414c JM |
8148 | In addition, the GNU syntax treats ++ and -- as unary operators, so |
8149 | they may be applied to cast expressions with errors for non-lvalues | |
8150 | given later. */ | |
8151 | ||
8152 | static struct c_expr | |
8153 | c_parser_unary_expression (c_parser *parser) | |
8154 | { | |
8155 | int ext; | |
46bdb9cf | 8156 | struct c_expr ret, op; |
c2255bc4 AH |
8157 | location_t op_loc = c_parser_peek_token (parser)->location; |
8158 | location_t exp_loc; | |
ebedc9a3 | 8159 | location_t finish; |
6866c6e8 ILT |
8160 | ret.original_code = ERROR_MARK; |
8161 | ret.original_type = NULL; | |
27bf414c JM |
8162 | switch (c_parser_peek_token (parser)->type) |
8163 | { | |
8164 | case CPP_PLUS_PLUS: | |
8165 | c_parser_consume_token (parser); | |
c2255bc4 | 8166 | exp_loc = c_parser_peek_token (parser)->location; |
46bdb9cf | 8167 | op = c_parser_cast_expression (parser, NULL); |
36536d79 | 8168 | |
5e9d6aa4 JK |
8169 | op = default_function_array_read_conversion (exp_loc, op); |
8170 | return parser_build_unary_op (op_loc, PREINCREMENT_EXPR, op); | |
27bf414c JM |
8171 | case CPP_MINUS_MINUS: |
8172 | c_parser_consume_token (parser); | |
c2255bc4 | 8173 | exp_loc = c_parser_peek_token (parser)->location; |
46bdb9cf | 8174 | op = c_parser_cast_expression (parser, NULL); |
36536d79 | 8175 | |
5e9d6aa4 JK |
8176 | op = default_function_array_read_conversion (exp_loc, op); |
8177 | return parser_build_unary_op (op_loc, PREDECREMENT_EXPR, op); | |
27bf414c JM |
8178 | case CPP_AND: |
8179 | c_parser_consume_token (parser); | |
ebfbbdc5 JJ |
8180 | op = c_parser_cast_expression (parser, NULL); |
8181 | mark_exp_read (op.value); | |
8182 | return parser_build_unary_op (op_loc, ADDR_EXPR, op); | |
27bf414c | 8183 | case CPP_MULT: |
7443cf13 DM |
8184 | { |
8185 | c_parser_consume_token (parser); | |
8186 | exp_loc = c_parser_peek_token (parser)->location; | |
8187 | op = c_parser_cast_expression (parser, NULL); | |
8188 | finish = op.get_finish (); | |
8189 | op = convert_lvalue_to_rvalue (exp_loc, op, true, true); | |
8190 | location_t combined_loc = make_location (op_loc, op_loc, finish); | |
8191 | ret.value = build_indirect_ref (combined_loc, op.value, RO_UNARY_STAR); | |
8192 | ret.src_range.m_start = op_loc; | |
8193 | ret.src_range.m_finish = finish; | |
8194 | return ret; | |
8195 | } | |
27bf414c | 8196 | case CPP_PLUS: |
8400e75e | 8197 | if (!c_dialect_objc () && !in_system_header_at (input_location)) |
c2255bc4 | 8198 | warning_at (op_loc, |
3ba09659 AH |
8199 | OPT_Wtraditional, |
8200 | "traditional C rejects the unary plus operator"); | |
c7412148 | 8201 | c_parser_consume_token (parser); |
c2255bc4 | 8202 | exp_loc = c_parser_peek_token (parser)->location; |
46bdb9cf | 8203 | op = c_parser_cast_expression (parser, NULL); |
267bac10 | 8204 | op = convert_lvalue_to_rvalue (exp_loc, op, true, true); |
c2255bc4 | 8205 | return parser_build_unary_op (op_loc, CONVERT_EXPR, op); |
27bf414c JM |
8206 | case CPP_MINUS: |
8207 | c_parser_consume_token (parser); | |
c2255bc4 | 8208 | exp_loc = c_parser_peek_token (parser)->location; |
46bdb9cf | 8209 | op = c_parser_cast_expression (parser, NULL); |
267bac10 | 8210 | op = convert_lvalue_to_rvalue (exp_loc, op, true, true); |
c2255bc4 | 8211 | return parser_build_unary_op (op_loc, NEGATE_EXPR, op); |
27bf414c JM |
8212 | case CPP_COMPL: |
8213 | c_parser_consume_token (parser); | |
c2255bc4 | 8214 | exp_loc = c_parser_peek_token (parser)->location; |
46bdb9cf | 8215 | op = c_parser_cast_expression (parser, NULL); |
267bac10 | 8216 | op = convert_lvalue_to_rvalue (exp_loc, op, true, true); |
c2255bc4 | 8217 | return parser_build_unary_op (op_loc, BIT_NOT_EXPR, op); |
27bf414c JM |
8218 | case CPP_NOT: |
8219 | c_parser_consume_token (parser); | |
c2255bc4 | 8220 | exp_loc = c_parser_peek_token (parser)->location; |
46bdb9cf | 8221 | op = c_parser_cast_expression (parser, NULL); |
267bac10 | 8222 | op = convert_lvalue_to_rvalue (exp_loc, op, true, true); |
c2255bc4 | 8223 | return parser_build_unary_op (op_loc, TRUTH_NOT_EXPR, op); |
27bf414c JM |
8224 | case CPP_AND_AND: |
8225 | /* Refer to the address of a label as a pointer. */ | |
8226 | c_parser_consume_token (parser); | |
8227 | if (c_parser_next_token_is (parser, CPP_NAME)) | |
8228 | { | |
8229 | ret.value = finish_label_address_expr | |
c2255bc4 | 8230 | (c_parser_peek_token (parser)->value, op_loc); |
bef08b71 DM |
8231 | set_c_expr_source_range (&ret, op_loc, |
8232 | c_parser_peek_token (parser)->get_finish ()); | |
27bf414c | 8233 | c_parser_consume_token (parser); |
27bf414c JM |
8234 | } |
8235 | else | |
8236 | { | |
8237 | c_parser_error (parser, "expected identifier"); | |
f7b6353a | 8238 | ret.set_error (); |
27bf414c | 8239 | } |
f7b6353a | 8240 | return ret; |
27bf414c JM |
8241 | case CPP_KEYWORD: |
8242 | switch (c_parser_peek_token (parser)->keyword) | |
8243 | { | |
8244 | case RID_SIZEOF: | |
8245 | return c_parser_sizeof_expression (parser); | |
8246 | case RID_ALIGNOF: | |
8247 | return c_parser_alignof_expression (parser); | |
98f08eb8 MS |
8248 | case RID_BUILTIN_HAS_ATTRIBUTE: |
8249 | return c_parser_has_attribute_expression (parser); | |
27bf414c JM |
8250 | case RID_EXTENSION: |
8251 | c_parser_consume_token (parser); | |
8252 | ext = disable_extension_diagnostics (); | |
8253 | ret = c_parser_cast_expression (parser, NULL); | |
8254 | restore_extension_diagnostics (ext); | |
8255 | return ret; | |
8256 | case RID_REALPART: | |
8257 | c_parser_consume_token (parser); | |
c2255bc4 | 8258 | exp_loc = c_parser_peek_token (parser)->location; |
46bdb9cf | 8259 | op = c_parser_cast_expression (parser, NULL); |
c2255bc4 AH |
8260 | op = default_function_array_conversion (exp_loc, op); |
8261 | return parser_build_unary_op (op_loc, REALPART_EXPR, op); | |
27bf414c JM |
8262 | case RID_IMAGPART: |
8263 | c_parser_consume_token (parser); | |
c2255bc4 | 8264 | exp_loc = c_parser_peek_token (parser)->location; |
46bdb9cf | 8265 | op = c_parser_cast_expression (parser, NULL); |
c2255bc4 AH |
8266 | op = default_function_array_conversion (exp_loc, op); |
8267 | return parser_build_unary_op (op_loc, IMAGPART_EXPR, op); | |
0a35513e AH |
8268 | case RID_TRANSACTION_ATOMIC: |
8269 | case RID_TRANSACTION_RELAXED: | |
8270 | return c_parser_transaction_expression (parser, | |
8271 | c_parser_peek_token (parser)->keyword); | |
27bf414c JM |
8272 | default: |
8273 | return c_parser_postfix_expression (parser); | |
8274 | } | |
8275 | default: | |
8276 | return c_parser_postfix_expression (parser); | |
8277 | } | |
8278 | } | |
8279 | ||
8280 | /* Parse a sizeof expression. */ | |
8281 | ||
8282 | static struct c_expr | |
8283 | c_parser_sizeof_expression (c_parser *parser) | |
8284 | { | |
8285 | struct c_expr expr; | |
ebedc9a3 | 8286 | struct c_expr result; |
c7412148 | 8287 | location_t expr_loc; |
27bf414c | 8288 | gcc_assert (c_parser_next_token_is_keyword (parser, RID_SIZEOF)); |
ebedc9a3 DM |
8289 | |
8290 | location_t start; | |
8291 | location_t finish = UNKNOWN_LOCATION; | |
8292 | ||
8293 | start = c_parser_peek_token (parser)->location; | |
8294 | ||
27bf414c | 8295 | c_parser_consume_token (parser); |
7d882b83 | 8296 | c_inhibit_evaluation_warnings++; |
27bf414c JM |
8297 | in_sizeof++; |
8298 | if (c_parser_next_token_is (parser, CPP_OPEN_PAREN) | |
8299 | && c_token_starts_typename (c_parser_peek_2nd_token (parser))) | |
8300 | { | |
8301 | /* Either sizeof ( type-name ) or sizeof unary-expression | |
8302 | starting with a compound literal. */ | |
8303 | struct c_type_name *type_name; | |
32129a17 DM |
8304 | matching_parens parens; |
8305 | parens.consume_open (parser); | |
c7412148 | 8306 | expr_loc = c_parser_peek_token (parser)->location; |
4b2b493f | 8307 | type_name = c_parser_type_name (parser, true); |
32129a17 | 8308 | parens.skip_until_found_close (parser); |
ebedc9a3 | 8309 | finish = parser->tokens_buf[0].location; |
27bf414c JM |
8310 | if (type_name == NULL) |
8311 | { | |
8312 | struct c_expr ret; | |
7d882b83 | 8313 | c_inhibit_evaluation_warnings--; |
27bf414c | 8314 | in_sizeof--; |
913884f7 | 8315 | ret.set_error (); |
27bf414c | 8316 | ret.original_code = ERROR_MARK; |
6866c6e8 | 8317 | ret.original_type = NULL; |
27bf414c JM |
8318 | return ret; |
8319 | } | |
8320 | if (c_parser_next_token_is (parser, CPP_OPEN_BRACE)) | |
8321 | { | |
4bd2511b JL |
8322 | expr = c_parser_postfix_expression_after_paren_type (parser, |
8323 | type_name, | |
8324 | expr_loc); | |
ebedc9a3 | 8325 | finish = expr.get_finish (); |
4bd2511b | 8326 | goto sizeof_expr; |
27bf414c | 8327 | } |
4bd2511b | 8328 | /* sizeof ( type-name ). */ |
4b2b493f JM |
8329 | if (type_name->specs->alignas_p) |
8330 | error_at (type_name->specs->locations[cdw_alignas], | |
8331 | "alignment specified for type name in %<sizeof%>"); | |
4bd2511b JL |
8332 | c_inhibit_evaluation_warnings--; |
8333 | in_sizeof--; | |
ebedc9a3 | 8334 | result = c_expr_sizeof_type (expr_loc, type_name); |
27bf414c JM |
8335 | } |
8336 | else | |
8337 | { | |
c7412148 | 8338 | expr_loc = c_parser_peek_token (parser)->location; |
27bf414c | 8339 | expr = c_parser_unary_expression (parser); |
ebedc9a3 | 8340 | finish = expr.get_finish (); |
4bd2511b JL |
8341 | sizeof_expr: |
8342 | c_inhibit_evaluation_warnings--; | |
8343 | in_sizeof--; | |
8344 | mark_exp_read (expr.value); | |
8345 | if (TREE_CODE (expr.value) == COMPONENT_REF | |
8346 | && DECL_C_BIT_FIELD (TREE_OPERAND (expr.value, 1))) | |
8347 | error_at (expr_loc, "%<sizeof%> applied to a bit-field"); | |
ebedc9a3 | 8348 | result = c_expr_sizeof_expr (expr_loc, expr); |
27bf414c | 8349 | } |
a28351e7 JJ |
8350 | if (finish == UNKNOWN_LOCATION) |
8351 | finish = start; | |
8352 | set_c_expr_source_range (&result, start, finish); | |
ebedc9a3 | 8353 | return result; |
27bf414c JM |
8354 | } |
8355 | ||
8356 | /* Parse an alignof expression. */ | |
8357 | ||
8358 | static struct c_expr | |
8359 | c_parser_alignof_expression (c_parser *parser) | |
8360 | { | |
8361 | struct c_expr expr; | |
a1b93f8d DM |
8362 | location_t start_loc = c_parser_peek_token (parser)->location; |
8363 | location_t end_loc; | |
d19fa6b5 | 8364 | tree alignof_spelling = c_parser_peek_token (parser)->value; |
27bf414c | 8365 | gcc_assert (c_parser_next_token_is_keyword (parser, RID_ALIGNOF)); |
296674db JM |
8366 | bool is_c11_alignof = strcmp (IDENTIFIER_POINTER (alignof_spelling), |
8367 | "_Alignof") == 0; | |
d19fa6b5 | 8368 | /* A diagnostic is not required for the use of this identifier in |
48b0b196 | 8369 | the implementation namespace; only diagnose it for the C11 |
d19fa6b5 | 8370 | spelling because of existing code using the other spellings. */ |
35aff4fb | 8371 | if (is_c11_alignof) |
d19fa6b5 JM |
8372 | { |
8373 | if (flag_isoc99) | |
a1b93f8d | 8374 | pedwarn_c99 (start_loc, OPT_Wpedantic, "ISO C99 does not support %qE", |
35aff4fb | 8375 | alignof_spelling); |
d19fa6b5 | 8376 | else |
a1b93f8d | 8377 | pedwarn_c99 (start_loc, OPT_Wpedantic, "ISO C90 does not support %qE", |
35aff4fb | 8378 | alignof_spelling); |
d19fa6b5 | 8379 | } |
27bf414c | 8380 | c_parser_consume_token (parser); |
7d882b83 | 8381 | c_inhibit_evaluation_warnings++; |
27bf414c JM |
8382 | in_alignof++; |
8383 | if (c_parser_next_token_is (parser, CPP_OPEN_PAREN) | |
8384 | && c_token_starts_typename (c_parser_peek_2nd_token (parser))) | |
8385 | { | |
8386 | /* Either __alignof__ ( type-name ) or __alignof__ | |
8387 | unary-expression starting with a compound literal. */ | |
24b97832 | 8388 | location_t loc; |
27bf414c JM |
8389 | struct c_type_name *type_name; |
8390 | struct c_expr ret; | |
32129a17 DM |
8391 | matching_parens parens; |
8392 | parens.consume_open (parser); | |
24b97832 | 8393 | loc = c_parser_peek_token (parser)->location; |
4b2b493f | 8394 | type_name = c_parser_type_name (parser, true); |
a1b93f8d | 8395 | end_loc = c_parser_peek_token (parser)->location; |
32129a17 | 8396 | parens.skip_until_found_close (parser); |
27bf414c JM |
8397 | if (type_name == NULL) |
8398 | { | |
8399 | struct c_expr ret; | |
7d882b83 | 8400 | c_inhibit_evaluation_warnings--; |
27bf414c | 8401 | in_alignof--; |
913884f7 | 8402 | ret.set_error (); |
27bf414c | 8403 | ret.original_code = ERROR_MARK; |
6866c6e8 | 8404 | ret.original_type = NULL; |
27bf414c JM |
8405 | return ret; |
8406 | } | |
8407 | if (c_parser_next_token_is (parser, CPP_OPEN_BRACE)) | |
8408 | { | |
8409 | expr = c_parser_postfix_expression_after_paren_type (parser, | |
24b97832 ILT |
8410 | type_name, |
8411 | loc); | |
27bf414c JM |
8412 | goto alignof_expr; |
8413 | } | |
8414 | /* alignof ( type-name ). */ | |
4b2b493f JM |
8415 | if (type_name->specs->alignas_p) |
8416 | error_at (type_name->specs->locations[cdw_alignas], | |
8417 | "alignment specified for type name in %qE", | |
8418 | alignof_spelling); | |
7d882b83 | 8419 | c_inhibit_evaluation_warnings--; |
27bf414c | 8420 | in_alignof--; |
296674db JM |
8421 | ret.value = c_sizeof_or_alignof_type (loc, groktypename (type_name, |
8422 | NULL, NULL), | |
8423 | false, is_c11_alignof, 1); | |
27bf414c | 8424 | ret.original_code = ERROR_MARK; |
6866c6e8 | 8425 | ret.original_type = NULL; |
a1b93f8d | 8426 | set_c_expr_source_range (&ret, start_loc, end_loc); |
27bf414c JM |
8427 | return ret; |
8428 | } | |
8429 | else | |
8430 | { | |
8431 | struct c_expr ret; | |
8432 | expr = c_parser_unary_expression (parser); | |
a1b93f8d | 8433 | end_loc = expr.src_range.m_finish; |
27bf414c | 8434 | alignof_expr: |
ebfbbdc5 | 8435 | mark_exp_read (expr.value); |
7d882b83 | 8436 | c_inhibit_evaluation_warnings--; |
27bf414c | 8437 | in_alignof--; |
aa0db437 MS |
8438 | if (is_c11_alignof) |
8439 | pedwarn (start_loc, | |
8440 | OPT_Wpedantic, "ISO C does not allow %<%E (expression)%>", | |
8441 | alignof_spelling); | |
a1b93f8d | 8442 | ret.value = c_alignof_expr (start_loc, expr.value); |
27bf414c | 8443 | ret.original_code = ERROR_MARK; |
6866c6e8 | 8444 | ret.original_type = NULL; |
a1b93f8d | 8445 | set_c_expr_source_range (&ret, start_loc, end_loc); |
27bf414c JM |
8446 | return ret; |
8447 | } | |
8448 | } | |
8449 | ||
98f08eb8 MS |
8450 | /* Parse the __builtin_has_attribute ([expr|type], attribute-spec) |
8451 | expression. */ | |
8452 | ||
8453 | static struct c_expr | |
8454 | c_parser_has_attribute_expression (c_parser *parser) | |
8455 | { | |
8456 | gcc_assert (c_parser_next_token_is_keyword (parser, | |
8457 | RID_BUILTIN_HAS_ATTRIBUTE)); | |
8458 | c_parser_consume_token (parser); | |
8459 | ||
8460 | c_inhibit_evaluation_warnings++; | |
8461 | ||
8462 | matching_parens parens; | |
8463 | if (!parens.require_open (parser)) | |
8464 | { | |
8465 | c_inhibit_evaluation_warnings--; | |
8466 | in_typeof--; | |
8467 | ||
8468 | struct c_expr result; | |
8469 | result.set_error (); | |
8470 | result.original_code = ERROR_MARK; | |
8471 | result.original_type = NULL; | |
8472 | return result; | |
8473 | } | |
8474 | ||
8475 | /* Treat the type argument the same way as in typeof for the purposes | |
8476 | of warnings. FIXME: Generalize this so the warning refers to | |
8477 | __builtin_has_attribute rather than typeof. */ | |
8478 | in_typeof++; | |
8479 | ||
8480 | /* The first operand: one of DECL, EXPR, or TYPE. */ | |
8481 | tree oper = NULL_TREE; | |
8482 | if (c_parser_next_tokens_start_typename (parser, cla_prefer_id)) | |
8483 | { | |
8484 | struct c_type_name *tname = c_parser_type_name (parser); | |
8485 | in_typeof--; | |
8486 | if (tname) | |
8487 | { | |
8488 | oper = groktypename (tname, NULL, NULL); | |
8489 | pop_maybe_used (variably_modified_type_p (oper, NULL_TREE)); | |
8490 | } | |
8491 | } | |
8492 | else | |
8493 | { | |
8494 | struct c_expr cexpr = c_parser_expr_no_commas (parser, NULL); | |
8495 | c_inhibit_evaluation_warnings--; | |
8496 | in_typeof--; | |
8497 | if (cexpr.value != error_mark_node) | |
8498 | { | |
8499 | mark_exp_read (cexpr.value); | |
8500 | oper = cexpr.value; | |
8501 | tree etype = TREE_TYPE (oper); | |
8502 | bool was_vm = variably_modified_type_p (etype, NULL_TREE); | |
8503 | /* This is returned with the type so that when the type is | |
8504 | evaluated, this can be evaluated. */ | |
8505 | if (was_vm) | |
8506 | oper = c_fully_fold (oper, false, NULL); | |
8507 | pop_maybe_used (was_vm); | |
8508 | } | |
8509 | } | |
8510 | ||
8511 | struct c_expr result; | |
8512 | result.original_code = ERROR_MARK; | |
8513 | result.original_type = NULL; | |
8514 | ||
8515 | if (!c_parser_require (parser, CPP_COMMA, "expected %<,%>")) | |
8516 | { | |
8517 | /* Consume the closing parenthesis if that's the next token | |
8518 | in the likely case the built-in was invoked with fewer | |
8519 | than two arguments. */ | |
8520 | if (c_parser_next_token_is (parser, CPP_CLOSE_PAREN)) | |
8521 | c_parser_consume_token (parser); | |
8522 | c_inhibit_evaluation_warnings--; | |
8523 | result.set_error (); | |
8524 | return result; | |
8525 | } | |
8526 | ||
471c5330 | 8527 | bool save_translate_strings_p = parser->translate_strings_p; |
98f08eb8 MS |
8528 | |
8529 | location_t atloc = c_parser_peek_token (parser)->location; | |
8530 | /* Parse a single attribute. Require no leading comma and do not | |
8531 | allow empty attributes. */ | |
783bfe5e | 8532 | tree attr = c_parser_gnu_attribute (parser, NULL_TREE, false, false); |
98f08eb8 | 8533 | |
471c5330 | 8534 | parser->translate_strings_p = save_translate_strings_p; |
98f08eb8 MS |
8535 | |
8536 | if (c_parser_next_token_is (parser, CPP_CLOSE_PAREN)) | |
8537 | c_parser_consume_token (parser); | |
8538 | else | |
8539 | { | |
8540 | c_parser_error (parser, "expected identifier"); | |
8541 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, NULL); | |
8542 | ||
8543 | result.set_error (); | |
8544 | return result; | |
8545 | } | |
8546 | ||
8547 | if (!attr) | |
8548 | { | |
8549 | error_at (atloc, "expected identifier"); | |
8550 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, | |
8551 | "expected %<)%>"); | |
8552 | result.set_error (); | |
8553 | return result; | |
8554 | } | |
8555 | ||
8556 | result.original_code = INTEGER_CST; | |
8557 | result.original_type = boolean_type_node; | |
8558 | ||
8559 | if (has_attribute (atloc, oper, attr, default_conversion)) | |
8560 | result.value = boolean_true_node; | |
8561 | else | |
8562 | result.value = boolean_false_node; | |
8563 | ||
8564 | return result; | |
8565 | } | |
8566 | ||
f90e8e2e | 8567 | /* Helper function to read arguments of builtins which are interfaces |
2205ed25 | 8568 | for the middle-end nodes like COMPLEX_EXPR, VEC_PERM_EXPR and |
f90e8e2e AS |
8569 | others. The name of the builtin is passed using BNAME parameter. |
8570 | Function returns true if there were no errors while parsing and | |
46c6e1e2 DM |
8571 | stores the arguments in CEXPR_LIST. If it returns true, |
8572 | *OUT_CLOSE_PAREN_LOC is written to with the location of the closing | |
8573 | parenthesis. */ | |
f90e8e2e AS |
8574 | static bool |
8575 | c_parser_get_builtin_args (c_parser *parser, const char *bname, | |
4e7d7b3d | 8576 | vec<c_expr_t, va_gc> **ret_cexpr_list, |
46c6e1e2 DM |
8577 | bool choose_expr_p, |
8578 | location_t *out_close_paren_loc) | |
f90e8e2e AS |
8579 | { |
8580 | location_t loc = c_parser_peek_token (parser)->location; | |
9771b263 | 8581 | vec<c_expr_t, va_gc> *cexpr_list; |
86785830 | 8582 | c_expr_t expr; |
4e7d7b3d | 8583 | bool saved_force_folding_builtin_constant_p; |
f90e8e2e | 8584 | |
86785830 | 8585 | *ret_cexpr_list = NULL; |
f90e8e2e AS |
8586 | if (c_parser_next_token_is_not (parser, CPP_OPEN_PAREN)) |
8587 | { | |
8588 | error_at (loc, "cannot take address of %qs", bname); | |
8589 | return false; | |
8590 | } | |
8591 | ||
8592 | c_parser_consume_token (parser); | |
8593 | ||
8594 | if (c_parser_next_token_is (parser, CPP_CLOSE_PAREN)) | |
8595 | { | |
46c6e1e2 | 8596 | *out_close_paren_loc = c_parser_peek_token (parser)->location; |
f90e8e2e AS |
8597 | c_parser_consume_token (parser); |
8598 | return true; | |
8599 | } | |
86785830 | 8600 | |
4e7d7b3d JJ |
8601 | saved_force_folding_builtin_constant_p |
8602 | = force_folding_builtin_constant_p; | |
8603 | force_folding_builtin_constant_p |= choose_expr_p; | |
86785830 | 8604 | expr = c_parser_expr_no_commas (parser, NULL); |
4e7d7b3d JJ |
8605 | force_folding_builtin_constant_p |
8606 | = saved_force_folding_builtin_constant_p; | |
9771b263 | 8607 | vec_alloc (cexpr_list, 1); |
b581c05c | 8608 | vec_safe_push (cexpr_list, expr); |
86785830 AS |
8609 | while (c_parser_next_token_is (parser, CPP_COMMA)) |
8610 | { | |
8611 | c_parser_consume_token (parser); | |
8612 | expr = c_parser_expr_no_commas (parser, NULL); | |
b581c05c | 8613 | vec_safe_push (cexpr_list, expr); |
86785830 | 8614 | } |
f90e8e2e | 8615 | |
46c6e1e2 | 8616 | *out_close_paren_loc = c_parser_peek_token (parser)->location; |
f90e8e2e AS |
8617 | if (!c_parser_require (parser, CPP_CLOSE_PAREN, "expected %<)%>")) |
8618 | return false; | |
8619 | ||
86785830 | 8620 | *ret_cexpr_list = cexpr_list; |
f90e8e2e AS |
8621 | return true; |
8622 | } | |
8623 | ||
433cc7b0 TT |
8624 | /* This represents a single generic-association. */ |
8625 | ||
8626 | struct c_generic_association | |
8627 | { | |
8628 | /* The location of the starting token of the type. */ | |
8629 | location_t type_location; | |
fb48aadc | 8630 | /* The association's type, or NULL_TREE for 'default'. */ |
433cc7b0 TT |
8631 | tree type; |
8632 | /* The association's expression. */ | |
8633 | struct c_expr expression; | |
8634 | }; | |
8635 | ||
8636 | /* Parse a generic-selection. (C11 6.5.1.1). | |
8637 | ||
8638 | generic-selection: | |
8639 | _Generic ( assignment-expression , generic-assoc-list ) | |
8640 | ||
8641 | generic-assoc-list: | |
8642 | generic-association | |
8643 | generic-assoc-list , generic-association | |
8644 | ||
8645 | generic-association: | |
8646 | type-name : assignment-expression | |
8647 | default : assignment-expression | |
8648 | */ | |
8649 | ||
8650 | static struct c_expr | |
8651 | c_parser_generic_selection (c_parser *parser) | |
8652 | { | |
433cc7b0 TT |
8653 | struct c_expr selector, error_expr; |
8654 | tree selector_type; | |
8655 | struct c_generic_association matched_assoc; | |
8656 | bool match_found = false; | |
8657 | location_t generic_loc, selector_loc; | |
8658 | ||
8659 | error_expr.original_code = ERROR_MARK; | |
8660 | error_expr.original_type = NULL; | |
8a40fef3 | 8661 | error_expr.set_error (); |
433cc7b0 TT |
8662 | matched_assoc.type_location = UNKNOWN_LOCATION; |
8663 | matched_assoc.type = NULL_TREE; | |
8664 | matched_assoc.expression = error_expr; | |
8665 | ||
8666 | gcc_assert (c_parser_next_token_is_keyword (parser, RID_GENERIC)); | |
8667 | generic_loc = c_parser_peek_token (parser)->location; | |
8668 | c_parser_consume_token (parser); | |
35aff4fb MP |
8669 | if (flag_isoc99) |
8670 | pedwarn_c99 (generic_loc, OPT_Wpedantic, | |
433cc7b0 | 8671 | "ISO C99 does not support %<_Generic%>"); |
35aff4fb MP |
8672 | else |
8673 | pedwarn_c99 (generic_loc, OPT_Wpedantic, | |
433cc7b0 | 8674 | "ISO C90 does not support %<_Generic%>"); |
433cc7b0 | 8675 | |
32129a17 DM |
8676 | matching_parens parens; |
8677 | if (!parens.require_open (parser)) | |
433cc7b0 TT |
8678 | return error_expr; |
8679 | ||
8680 | c_inhibit_evaluation_warnings++; | |
8681 | selector_loc = c_parser_peek_token (parser)->location; | |
8682 | selector = c_parser_expr_no_commas (parser, NULL); | |
8683 | selector = default_function_array_conversion (selector_loc, selector); | |
8684 | c_inhibit_evaluation_warnings--; | |
8685 | ||
8686 | if (selector.value == error_mark_node) | |
8687 | { | |
8688 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, NULL); | |
8689 | return selector; | |
8690 | } | |
8691 | selector_type = TREE_TYPE (selector.value); | |
8692 | /* In ISO C terms, rvalues (including the controlling expression of | |
8693 | _Generic) do not have qualified types. */ | |
8694 | if (TREE_CODE (selector_type) != ARRAY_TYPE) | |
8695 | selector_type = TYPE_MAIN_VARIANT (selector_type); | |
8696 | /* In ISO C terms, _Noreturn is not part of the type of expressions | |
8697 | such as &abort, but in GCC it is represented internally as a type | |
8698 | qualifier. */ | |
8699 | if (FUNCTION_POINTER_TYPE_P (selector_type) | |
8700 | && TYPE_QUALS (TREE_TYPE (selector_type)) != TYPE_UNQUALIFIED) | |
8701 | selector_type | |
8702 | = build_pointer_type (TYPE_MAIN_VARIANT (TREE_TYPE (selector_type))); | |
8703 | ||
8704 | if (!c_parser_require (parser, CPP_COMMA, "expected %<,%>")) | |
8705 | { | |
8706 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, NULL); | |
8707 | return error_expr; | |
8708 | } | |
8709 | ||
8c681247 | 8710 | auto_vec<c_generic_association> associations; |
433cc7b0 TT |
8711 | while (1) |
8712 | { | |
8713 | struct c_generic_association assoc, *iter; | |
8714 | unsigned int ix; | |
8715 | c_token *token = c_parser_peek_token (parser); | |
8716 | ||
8717 | assoc.type_location = token->location; | |
8718 | if (token->type == CPP_KEYWORD && token->keyword == RID_DEFAULT) | |
8719 | { | |
8720 | c_parser_consume_token (parser); | |
8721 | assoc.type = NULL_TREE; | |
8722 | } | |
8723 | else | |
8724 | { | |
8725 | struct c_type_name *type_name; | |
8726 | ||
8727 | type_name = c_parser_type_name (parser); | |
8728 | if (type_name == NULL) | |
8729 | { | |
8730 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, NULL); | |
8c681247 | 8731 | return error_expr; |
433cc7b0 TT |
8732 | } |
8733 | assoc.type = groktypename (type_name, NULL, NULL); | |
8734 | if (assoc.type == error_mark_node) | |
8735 | { | |
8736 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, NULL); | |
8c681247 | 8737 | return error_expr; |
433cc7b0 TT |
8738 | } |
8739 | ||
8740 | if (TREE_CODE (assoc.type) == FUNCTION_TYPE) | |
8741 | error_at (assoc.type_location, | |
8742 | "%<_Generic%> association has function type"); | |
8743 | else if (!COMPLETE_TYPE_P (assoc.type)) | |
8744 | error_at (assoc.type_location, | |
8745 | "%<_Generic%> association has incomplete type"); | |
8746 | ||
8747 | if (variably_modified_type_p (assoc.type, NULL_TREE)) | |
8748 | error_at (assoc.type_location, | |
8749 | "%<_Generic%> association has " | |
8750 | "variable length type"); | |
8751 | } | |
8752 | ||
8753 | if (!c_parser_require (parser, CPP_COLON, "expected %<:%>")) | |
8754 | { | |
8755 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, NULL); | |
8c681247 | 8756 | return error_expr; |
433cc7b0 TT |
8757 | } |
8758 | ||
8759 | assoc.expression = c_parser_expr_no_commas (parser, NULL); | |
8760 | if (assoc.expression.value == error_mark_node) | |
8761 | { | |
8762 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, NULL); | |
8c681247 | 8763 | return error_expr; |
433cc7b0 TT |
8764 | } |
8765 | ||
8766 | for (ix = 0; associations.iterate (ix, &iter); ++ix) | |
8767 | { | |
8768 | if (assoc.type == NULL_TREE) | |
8769 | { | |
8770 | if (iter->type == NULL_TREE) | |
8771 | { | |
8772 | error_at (assoc.type_location, | |
8773 | "duplicate %<default%> case in %<_Generic%>"); | |
8774 | inform (iter->type_location, "original %<default%> is here"); | |
8775 | } | |
8776 | } | |
8777 | else if (iter->type != NULL_TREE) | |
8778 | { | |
8779 | if (comptypes (assoc.type, iter->type)) | |
8780 | { | |
8781 | error_at (assoc.type_location, | |
8782 | "%<_Generic%> specifies two compatible types"); | |
8783 | inform (iter->type_location, "compatible type is here"); | |
8784 | } | |
8785 | } | |
8786 | } | |
8787 | ||
8788 | if (assoc.type == NULL_TREE) | |
8789 | { | |
8790 | if (!match_found) | |
8791 | { | |
8792 | matched_assoc = assoc; | |
8793 | match_found = true; | |
8794 | } | |
8795 | } | |
8796 | else if (comptypes (assoc.type, selector_type)) | |
8797 | { | |
8798 | if (!match_found || matched_assoc.type == NULL_TREE) | |
8799 | { | |
8800 | matched_assoc = assoc; | |
8801 | match_found = true; | |
8802 | } | |
8803 | else | |
8804 | { | |
8805 | error_at (assoc.type_location, | |
883c8f06 | 8806 | "%<_Generic%> selector matches multiple associations"); |
433cc7b0 TT |
8807 | inform (matched_assoc.type_location, |
8808 | "other match is here"); | |
8809 | } | |
8810 | } | |
8811 | ||
8812 | associations.safe_push (assoc); | |
8813 | ||
8814 | if (c_parser_peek_token (parser)->type != CPP_COMMA) | |
8815 | break; | |
8816 | c_parser_consume_token (parser); | |
8817 | } | |
8818 | ||
32129a17 | 8819 | if (!parens.require_close (parser)) |
433cc7b0 TT |
8820 | { |
8821 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, NULL); | |
8822 | return error_expr; | |
8823 | } | |
8824 | ||
8825 | if (!match_found) | |
8826 | { | |
8827 | error_at (selector_loc, "%<_Generic%> selector of type %qT is not " | |
8828 | "compatible with any association", | |
8829 | selector_type); | |
8830 | return error_expr; | |
8831 | } | |
8832 | ||
8833 | return matched_assoc.expression; | |
433cc7b0 | 8834 | } |
f90e8e2e | 8835 | |
3ca0dc60 JM |
8836 | /* Check the validity of a function pointer argument *EXPR (argument |
8837 | position POS) to __builtin_tgmath. Return the number of function | |
8838 | arguments if possibly valid; return 0 having reported an error if | |
8839 | not valid. */ | |
8840 | ||
8841 | static unsigned int | |
8842 | check_tgmath_function (c_expr *expr, unsigned int pos) | |
8843 | { | |
8844 | tree type = TREE_TYPE (expr->value); | |
8845 | if (!FUNCTION_POINTER_TYPE_P (type)) | |
8846 | { | |
8847 | error_at (expr->get_location (), | |
8848 | "argument %u of %<__builtin_tgmath%> is not a function pointer", | |
8849 | pos); | |
8850 | return 0; | |
8851 | } | |
8852 | type = TREE_TYPE (type); | |
8853 | if (!prototype_p (type)) | |
8854 | { | |
8855 | error_at (expr->get_location (), | |
8856 | "argument %u of %<__builtin_tgmath%> is unprototyped", pos); | |
8857 | return 0; | |
8858 | } | |
8859 | if (stdarg_p (type)) | |
8860 | { | |
8861 | error_at (expr->get_location (), | |
8862 | "argument %u of %<__builtin_tgmath%> has variable arguments", | |
8863 | pos); | |
8864 | return 0; | |
8865 | } | |
8866 | unsigned int nargs = 0; | |
8867 | function_args_iterator iter; | |
8868 | tree t; | |
8869 | FOREACH_FUNCTION_ARGS (type, t, iter) | |
8870 | { | |
8871 | if (t == void_type_node) | |
8872 | break; | |
8873 | nargs++; | |
8874 | } | |
8875 | if (nargs == 0) | |
8876 | { | |
8877 | error_at (expr->get_location (), | |
8878 | "argument %u of %<__builtin_tgmath%> has no arguments", pos); | |
8879 | return 0; | |
8880 | } | |
8881 | return nargs; | |
8882 | } | |
8883 | ||
8884 | /* Ways in which a parameter or return value of a type-generic macro | |
8885 | may vary between the different functions the macro may call. */ | |
8886 | enum tgmath_parm_kind | |
8887 | { | |
8888 | tgmath_fixed, tgmath_real, tgmath_complex | |
8889 | }; | |
8890 | ||
59bc434a JJ |
8891 | /* Helper function for c_parser_postfix_expression. Parse predefined |
8892 | identifiers. */ | |
8893 | ||
8894 | static struct c_expr | |
8895 | c_parser_predefined_identifier (c_parser *parser) | |
8896 | { | |
8897 | location_t loc = c_parser_peek_token (parser)->location; | |
8898 | switch (c_parser_peek_token (parser)->keyword) | |
8899 | { | |
8900 | case RID_FUNCTION_NAME: | |
8901 | pedwarn (loc, OPT_Wpedantic, "ISO C does not support %qs predefined " | |
8902 | "identifier", "__FUNCTION__"); | |
8903 | break; | |
8904 | case RID_PRETTY_FUNCTION_NAME: | |
8905 | pedwarn (loc, OPT_Wpedantic, "ISO C does not support %qs predefined " | |
8906 | "identifier", "__PRETTY_FUNCTION__"); | |
8907 | break; | |
8908 | case RID_C99_FUNCTION_NAME: | |
8909 | pedwarn_c90 (loc, OPT_Wpedantic, "ISO C90 does not support " | |
8910 | "%<__func__%> predefined identifier"); | |
8911 | break; | |
8912 | default: | |
8913 | gcc_unreachable (); | |
8914 | } | |
8915 | ||
8916 | struct c_expr expr; | |
8917 | expr.original_code = ERROR_MARK; | |
8918 | expr.original_type = NULL; | |
8919 | expr.value = fname_decl (loc, c_parser_peek_token (parser)->keyword, | |
8920 | c_parser_peek_token (parser)->value); | |
8921 | set_c_expr_source_range (&expr, loc, loc); | |
8922 | c_parser_consume_token (parser); | |
8923 | return expr; | |
8924 | } | |
8925 | ||
31dc71a8 | 8926 | /* Parse a postfix expression (C90 6.3.1-6.3.2, C99 6.5.1-6.5.2, |
3e7b80d7 MP |
8927 | C11 6.5.1-6.5.2). Compound literals aren't handled here; callers have to |
8928 | call c_parser_postfix_expression_after_paren_type on encountering them. | |
27bf414c JM |
8929 | |
8930 | postfix-expression: | |
8931 | primary-expression | |
8932 | postfix-expression [ expression ] | |
8933 | postfix-expression ( argument-expression-list[opt] ) | |
8934 | postfix-expression . identifier | |
8935 | postfix-expression -> identifier | |
8936 | postfix-expression ++ | |
8937 | postfix-expression -- | |
8938 | ( type-name ) { initializer-list } | |
8939 | ( type-name ) { initializer-list , } | |
8940 | ||
8941 | argument-expression-list: | |
8942 | argument-expression | |
8943 | argument-expression-list , argument-expression | |
8944 | ||
8945 | primary-expression: | |
8946 | identifier | |
8947 | constant | |
8948 | string-literal | |
8949 | ( expression ) | |
433cc7b0 | 8950 | generic-selection |
27bf414c JM |
8951 | |
8952 | GNU extensions: | |
8953 | ||
8954 | primary-expression: | |
8955 | __func__ | |
8956 | (treated as a keyword in GNU C) | |
8957 | __FUNCTION__ | |
8958 | __PRETTY_FUNCTION__ | |
8959 | ( compound-statement ) | |
8960 | __builtin_va_arg ( assignment-expression , type-name ) | |
8961 | __builtin_offsetof ( type-name , offsetof-member-designator ) | |
8962 | __builtin_choose_expr ( assignment-expression , | |
8963 | assignment-expression , | |
8964 | assignment-expression ) | |
8965 | __builtin_types_compatible_p ( type-name , type-name ) | |
3ca0dc60 | 8966 | __builtin_tgmath ( expr-list ) |
d4a83c10 | 8967 | __builtin_complex ( assignment-expression , assignment-expression ) |
f90e8e2e | 8968 | __builtin_shuffle ( assignment-expression , assignment-expression ) |
3e7b80d7 | 8969 | __builtin_shuffle ( assignment-expression , |
f90e8e2e AS |
8970 | assignment-expression , |
8971 | assignment-expression, ) | |
d8fcab68 | 8972 | __builtin_convertvector ( assignment-expression , type-name ) |
27bf414c JM |
8973 | |
8974 | offsetof-member-designator: | |
8975 | identifier | |
8976 | offsetof-member-designator . identifier | |
8977 | offsetof-member-designator [ expression ] | |
8978 | ||
8979 | Objective-C: | |
8980 | ||
8981 | primary-expression: | |
8982 | [ objc-receiver objc-message-args ] | |
8983 | @selector ( objc-selector-arg ) | |
8984 | @protocol ( identifier ) | |
8985 | @encode ( type-name ) | |
8986 | objc-string-literal | |
bede2adc | 8987 | Classname . identifier |
27bf414c JM |
8988 | */ |
8989 | ||
8990 | static struct c_expr | |
8991 | c_parser_postfix_expression (c_parser *parser) | |
8992 | { | |
f90e8e2e | 8993 | struct c_expr expr, e1; |
27bf414c | 8994 | struct c_type_name *t1, *t2; |
5de73c05 | 8995 | location_t loc = c_parser_peek_token (parser)->location; |
ebedc9a3 | 8996 | source_range tok_range = c_parser_peek_token (parser)->get_range (); |
6866c6e8 ILT |
8997 | expr.original_code = ERROR_MARK; |
8998 | expr.original_type = NULL; | |
27bf414c JM |
8999 | switch (c_parser_peek_token (parser)->type) |
9000 | { | |
9001 | case CPP_NUMBER: | |
754ccf7c | 9002 | expr.value = c_parser_peek_token (parser)->value; |
ebedc9a3 | 9003 | set_c_expr_source_range (&expr, tok_range); |
754ccf7c JJ |
9004 | loc = c_parser_peek_token (parser)->location; |
9005 | c_parser_consume_token (parser); | |
9006 | if (TREE_CODE (expr.value) == FIXED_CST | |
9007 | && !targetm.fixed_point_supported_p ()) | |
9008 | { | |
9009 | error_at (loc, "fixed-point types not supported for this target"); | |
913884f7 | 9010 | expr.set_error (); |
754ccf7c JJ |
9011 | } |
9012 | break; | |
27bf414c | 9013 | case CPP_CHAR: |
b6baa67d KVH |
9014 | case CPP_CHAR16: |
9015 | case CPP_CHAR32: | |
7c5890cc | 9016 | case CPP_UTF8CHAR: |
27bf414c JM |
9017 | case CPP_WCHAR: |
9018 | expr.value = c_parser_peek_token (parser)->value; | |
a9342885 MP |
9019 | /* For the purpose of warning when a pointer is compared with |
9020 | a zero character constant. */ | |
9021 | expr.original_type = char_type_node; | |
ebedc9a3 | 9022 | set_c_expr_source_range (&expr, tok_range); |
27bf414c JM |
9023 | c_parser_consume_token (parser); |
9024 | break; | |
9025 | case CPP_STRING: | |
b6baa67d KVH |
9026 | case CPP_STRING16: |
9027 | case CPP_STRING32: | |
27bf414c | 9028 | case CPP_WSTRING: |
2c6e3f55 | 9029 | case CPP_UTF8STRING: |
471c5330 JM |
9030 | expr = c_parser_string_literal (parser, parser->translate_strings_p, |
9031 | true); | |
27bf414c JM |
9032 | break; |
9033 | case CPP_OBJC_STRING: | |
9034 | gcc_assert (c_dialect_objc ()); | |
9035 | expr.value | |
9036 | = objc_build_string_object (c_parser_peek_token (parser)->value); | |
ebedc9a3 | 9037 | set_c_expr_source_range (&expr, tok_range); |
27bf414c JM |
9038 | c_parser_consume_token (parser); |
9039 | break; | |
9040 | case CPP_NAME: | |
bede2adc | 9041 | switch (c_parser_peek_token (parser)->id_kind) |
27bf414c | 9042 | { |
bede2adc NP |
9043 | case C_ID_ID: |
9044 | { | |
9045 | tree id = c_parser_peek_token (parser)->value; | |
9046 | c_parser_consume_token (parser); | |
9047 | expr.value = build_external_ref (loc, id, | |
9048 | (c_parser_peek_token (parser)->type | |
9049 | == CPP_OPEN_PAREN), | |
9050 | &expr.original_type); | |
ebedc9a3 | 9051 | set_c_expr_source_range (&expr, tok_range); |
bede2adc NP |
9052 | break; |
9053 | } | |
9054 | case C_ID_CLASSNAME: | |
9055 | { | |
9056 | /* Here we parse the Objective-C 2.0 Class.name dot | |
9057 | syntax. */ | |
9058 | tree class_name = c_parser_peek_token (parser)->value; | |
9059 | tree component; | |
9060 | c_parser_consume_token (parser); | |
9061 | gcc_assert (c_dialect_objc ()); | |
9062 | if (!c_parser_require (parser, CPP_DOT, "expected %<.%>")) | |
9063 | { | |
8a40fef3 | 9064 | expr.set_error (); |
bede2adc NP |
9065 | break; |
9066 | } | |
9067 | if (c_parser_next_token_is_not (parser, CPP_NAME)) | |
9068 | { | |
9069 | c_parser_error (parser, "expected identifier"); | |
8a40fef3 | 9070 | expr.set_error (); |
bede2adc NP |
9071 | break; |
9072 | } | |
cbd03aee DM |
9073 | c_token *component_tok = c_parser_peek_token (parser); |
9074 | component = component_tok->value; | |
9075 | location_t end_loc = component_tok->get_finish (); | |
bede2adc NP |
9076 | c_parser_consume_token (parser); |
9077 | expr.value = objc_build_class_component_ref (class_name, | |
9078 | component); | |
cbd03aee | 9079 | set_c_expr_source_range (&expr, loc, end_loc); |
bede2adc NP |
9080 | break; |
9081 | } | |
9082 | default: | |
27bf414c | 9083 | c_parser_error (parser, "expected expression"); |
8a40fef3 | 9084 | expr.set_error (); |
27bf414c JM |
9085 | break; |
9086 | } | |
27bf414c JM |
9087 | break; |
9088 | case CPP_OPEN_PAREN: | |
9089 | /* A parenthesized expression, statement expression or compound | |
9090 | literal. */ | |
9091 | if (c_parser_peek_2nd_token (parser)->type == CPP_OPEN_BRACE) | |
9092 | { | |
9093 | /* A statement expression. */ | |
9094 | tree stmt; | |
c2255bc4 | 9095 | location_t brace_loc; |
27bf414c | 9096 | c_parser_consume_token (parser); |
c2255bc4 | 9097 | brace_loc = c_parser_peek_token (parser)->location; |
27bf414c | 9098 | c_parser_consume_token (parser); |
f7584c81 DP |
9099 | /* If we've not yet started the current function's statement list, |
9100 | or we're in the parameter scope of an old-style function | |
9101 | declaration, statement expressions are not allowed. */ | |
9102 | if (!building_stmt_list_p () || old_style_parameter_scope ()) | |
27bf414c | 9103 | { |
c2255bc4 | 9104 | error_at (loc, "braced-group within expression allowed " |
3ba09659 | 9105 | "only inside a function"); |
27bf414c JM |
9106 | parser->error = true; |
9107 | c_parser_skip_until_found (parser, CPP_CLOSE_BRACE, NULL); | |
9108 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, NULL); | |
8a40fef3 | 9109 | expr.set_error (); |
27bf414c JM |
9110 | break; |
9111 | } | |
9112 | stmt = c_begin_stmt_expr (); | |
9113 | c_parser_compound_statement_nostart (parser); | |
bef08b71 | 9114 | location_t close_loc = c_parser_peek_token (parser)->location; |
27bf414c JM |
9115 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, |
9116 | "expected %<)%>"); | |
c1771a20 | 9117 | pedwarn (loc, OPT_Wpedantic, |
509c9d60 | 9118 | "ISO C forbids braced-groups within expressions"); |
c2255bc4 | 9119 | expr.value = c_finish_stmt_expr (brace_loc, stmt); |
bef08b71 | 9120 | set_c_expr_source_range (&expr, loc, close_loc); |
82c3c067 | 9121 | mark_exp_read (expr.value); |
27bf414c | 9122 | } |
27bf414c JM |
9123 | else |
9124 | { | |
9125 | /* A parenthesized expression. */ | |
ebedc9a3 | 9126 | location_t loc_open_paren = c_parser_peek_token (parser)->location; |
27bf414c JM |
9127 | c_parser_consume_token (parser); |
9128 | expr = c_parser_expression (parser); | |
9129 | if (TREE_CODE (expr.value) == MODIFY_EXPR) | |
9130 | TREE_NO_WARNING (expr.value) = 1; | |
40ffd95f BE |
9131 | if (expr.original_code != C_MAYBE_CONST_EXPR |
9132 | && expr.original_code != SIZEOF_EXPR) | |
928c19bb | 9133 | expr.original_code = ERROR_MARK; |
6866c6e8 | 9134 | /* Don't change EXPR.ORIGINAL_TYPE. */ |
ebedc9a3 DM |
9135 | location_t loc_close_paren = c_parser_peek_token (parser)->location; |
9136 | set_c_expr_source_range (&expr, loc_open_paren, loc_close_paren); | |
27bf414c | 9137 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, |
32129a17 | 9138 | "expected %<)%>", loc_open_paren); |
27bf414c JM |
9139 | } |
9140 | break; | |
9141 | case CPP_KEYWORD: | |
9142 | switch (c_parser_peek_token (parser)->keyword) | |
9143 | { | |
9144 | case RID_FUNCTION_NAME: | |
9145 | case RID_PRETTY_FUNCTION_NAME: | |
9146 | case RID_C99_FUNCTION_NAME: | |
59bc434a | 9147 | expr = c_parser_predefined_identifier (parser); |
27bf414c JM |
9148 | break; |
9149 | case RID_VA_ARG: | |
bef08b71 DM |
9150 | { |
9151 | location_t start_loc = loc; | |
9152 | c_parser_consume_token (parser); | |
32129a17 DM |
9153 | matching_parens parens; |
9154 | if (!parens.require_open (parser)) | |
bef08b71 | 9155 | { |
8a40fef3 | 9156 | expr.set_error (); |
bef08b71 DM |
9157 | break; |
9158 | } | |
9159 | e1 = c_parser_expr_no_commas (parser, NULL); | |
9160 | mark_exp_read (e1.value); | |
9161 | e1.value = c_fully_fold (e1.value, false, NULL); | |
9162 | if (!c_parser_require (parser, CPP_COMMA, "expected %<,%>")) | |
9163 | { | |
9164 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, NULL); | |
8a40fef3 | 9165 | expr.set_error (); |
bef08b71 DM |
9166 | break; |
9167 | } | |
9168 | loc = c_parser_peek_token (parser)->location; | |
9169 | t1 = c_parser_type_name (parser); | |
9170 | location_t end_loc = c_parser_peek_token (parser)->get_finish (); | |
9171 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, | |
9172 | "expected %<)%>"); | |
9173 | if (t1 == NULL) | |
9174 | { | |
8a40fef3 | 9175 | expr.set_error (); |
bef08b71 DM |
9176 | } |
9177 | else | |
9178 | { | |
9179 | tree type_expr = NULL_TREE; | |
f187980b | 9180 | expr.value = c_build_va_arg (start_loc, e1.value, loc, |
bef08b71 DM |
9181 | groktypename (t1, &type_expr, NULL)); |
9182 | if (type_expr) | |
9183 | { | |
9184 | expr.value = build2 (C_MAYBE_CONST_EXPR, | |
9185 | TREE_TYPE (expr.value), type_expr, | |
9186 | expr.value); | |
9187 | C_MAYBE_CONST_EXPR_NON_CONST (expr.value) = true; | |
9188 | } | |
9189 | set_c_expr_source_range (&expr, start_loc, end_loc); | |
9190 | } | |
9191 | } | |
27bf414c JM |
9192 | break; |
9193 | case RID_OFFSETOF: | |
27bf414c | 9194 | { |
32129a17 DM |
9195 | c_parser_consume_token (parser); |
9196 | matching_parens parens; | |
9197 | if (!parens.require_open (parser)) | |
9198 | { | |
9199 | expr.set_error (); | |
9200 | break; | |
9201 | } | |
9202 | t1 = c_parser_type_name (parser); | |
9203 | if (t1 == NULL) | |
9204 | parser->error = true; | |
9205 | if (!c_parser_require (parser, CPP_COMMA, "expected %<,%>")) | |
9206 | gcc_assert (parser->error); | |
9207 | if (parser->error) | |
9208 | { | |
9209 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, NULL); | |
9210 | expr.set_error (); | |
9211 | break; | |
9212 | } | |
928c19bb | 9213 | tree type = groktypename (t1, NULL, NULL); |
27bf414c JM |
9214 | tree offsetof_ref; |
9215 | if (type == error_mark_node) | |
9216 | offsetof_ref = error_mark_node; | |
9217 | else | |
c2255bc4 AH |
9218 | { |
9219 | offsetof_ref = build1 (INDIRECT_REF, type, null_pointer_node); | |
9220 | SET_EXPR_LOCATION (offsetof_ref, loc); | |
9221 | } | |
27bf414c JM |
9222 | /* Parse the second argument to __builtin_offsetof. We |
9223 | must have one identifier, and beyond that we want to | |
9224 | accept sub structure and sub array references. */ | |
9225 | if (c_parser_next_token_is (parser, CPP_NAME)) | |
9226 | { | |
6ffd47b7 | 9227 | c_token *comp_tok = c_parser_peek_token (parser); |
27bf414c | 9228 | offsetof_ref = build_component_ref |
6ffd47b7 | 9229 | (loc, offsetof_ref, comp_tok->value, comp_tok->location); |
27bf414c JM |
9230 | c_parser_consume_token (parser); |
9231 | while (c_parser_next_token_is (parser, CPP_DOT) | |
9232 | || c_parser_next_token_is (parser, | |
634b5df5 JJ |
9233 | CPP_OPEN_SQUARE) |
9234 | || c_parser_next_token_is (parser, | |
9235 | CPP_DEREF)) | |
27bf414c | 9236 | { |
634b5df5 JJ |
9237 | if (c_parser_next_token_is (parser, CPP_DEREF)) |
9238 | { | |
9239 | loc = c_parser_peek_token (parser)->location; | |
c2255bc4 AH |
9240 | offsetof_ref = build_array_ref (loc, |
9241 | offsetof_ref, | |
9242 | integer_zero_node); | |
634b5df5 JJ |
9243 | goto do_dot; |
9244 | } | |
9245 | else if (c_parser_next_token_is (parser, CPP_DOT)) | |
27bf414c | 9246 | { |
634b5df5 | 9247 | do_dot: |
27bf414c JM |
9248 | c_parser_consume_token (parser); |
9249 | if (c_parser_next_token_is_not (parser, | |
9250 | CPP_NAME)) | |
9251 | { | |
9252 | c_parser_error (parser, "expected identifier"); | |
9253 | break; | |
9254 | } | |
6ffd47b7 | 9255 | c_token *comp_tok = c_parser_peek_token (parser); |
27bf414c | 9256 | offsetof_ref = build_component_ref |
6ffd47b7 DM |
9257 | (loc, offsetof_ref, comp_tok->value, |
9258 | comp_tok->location); | |
27bf414c JM |
9259 | c_parser_consume_token (parser); |
9260 | } | |
9261 | else | |
9262 | { | |
267bac10 | 9263 | struct c_expr ce; |
27bf414c | 9264 | tree idx; |
6a3799eb | 9265 | loc = c_parser_peek_token (parser)->location; |
27bf414c | 9266 | c_parser_consume_token (parser); |
267bac10 JM |
9267 | ce = c_parser_expression (parser); |
9268 | ce = convert_lvalue_to_rvalue (loc, ce, false, false); | |
9269 | idx = ce.value; | |
928c19bb | 9270 | idx = c_fully_fold (idx, false, NULL); |
27bf414c JM |
9271 | c_parser_skip_until_found (parser, CPP_CLOSE_SQUARE, |
9272 | "expected %<]%>"); | |
c2255bc4 | 9273 | offsetof_ref = build_array_ref (loc, offsetof_ref, idx); |
27bf414c JM |
9274 | } |
9275 | } | |
9276 | } | |
9277 | else | |
9278 | c_parser_error (parser, "expected identifier"); | |
bef08b71 | 9279 | location_t end_loc = c_parser_peek_token (parser)->get_finish (); |
27bf414c JM |
9280 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, |
9281 | "expected %<)%>"); | |
cf9e9959 | 9282 | expr.value = fold_offsetof (offsetof_ref); |
bef08b71 | 9283 | set_c_expr_source_range (&expr, loc, end_loc); |
27bf414c JM |
9284 | } |
9285 | break; | |
9286 | case RID_CHOOSE_EXPR: | |
27bf414c | 9287 | { |
9771b263 | 9288 | vec<c_expr_t, va_gc> *cexpr_list; |
86785830 AS |
9289 | c_expr_t *e1_p, *e2_p, *e3_p; |
9290 | tree c; | |
46c6e1e2 | 9291 | location_t close_paren_loc; |
27bf414c | 9292 | |
f90e8e2e AS |
9293 | c_parser_consume_token (parser); |
9294 | if (!c_parser_get_builtin_args (parser, | |
9295 | "__builtin_choose_expr", | |
46c6e1e2 DM |
9296 | &cexpr_list, true, |
9297 | &close_paren_loc)) | |
f90e8e2e | 9298 | { |
8a40fef3 | 9299 | expr.set_error (); |
f90e8e2e AS |
9300 | break; |
9301 | } | |
9302 | ||
9771b263 | 9303 | if (vec_safe_length (cexpr_list) != 3) |
f90e8e2e AS |
9304 | { |
9305 | error_at (loc, "wrong number of arguments to " | |
9306 | "%<__builtin_choose_expr%>"); | |
8a40fef3 | 9307 | expr.set_error (); |
f90e8e2e AS |
9308 | break; |
9309 | } | |
86785830 | 9310 | |
9771b263 DN |
9311 | e1_p = &(*cexpr_list)[0]; |
9312 | e2_p = &(*cexpr_list)[1]; | |
9313 | e3_p = &(*cexpr_list)[2]; | |
86785830 AS |
9314 | |
9315 | c = e1_p->value; | |
9316 | mark_exp_read (e2_p->value); | |
9317 | mark_exp_read (e3_p->value); | |
928c19bb JM |
9318 | if (TREE_CODE (c) != INTEGER_CST |
9319 | || !INTEGRAL_TYPE_P (TREE_TYPE (c))) | |
3ba09659 AH |
9320 | error_at (loc, |
9321 | "first argument to %<__builtin_choose_expr%> not" | |
9322 | " a constant"); | |
928c19bb | 9323 | constant_expression_warning (c); |
86785830 | 9324 | expr = integer_zerop (c) ? *e3_p : *e2_p; |
46c6e1e2 | 9325 | set_c_expr_source_range (&expr, loc, close_paren_loc); |
f90e8e2e | 9326 | break; |
27bf414c | 9327 | } |
27bf414c | 9328 | case RID_TYPES_COMPATIBLE_P: |
27bf414c | 9329 | { |
32129a17 DM |
9330 | c_parser_consume_token (parser); |
9331 | matching_parens parens; | |
9332 | if (!parens.require_open (parser)) | |
9333 | { | |
9334 | expr.set_error (); | |
9335 | break; | |
9336 | } | |
9337 | t1 = c_parser_type_name (parser); | |
9338 | if (t1 == NULL) | |
9339 | { | |
9340 | expr.set_error (); | |
9341 | break; | |
9342 | } | |
9343 | if (!c_parser_require (parser, CPP_COMMA, "expected %<,%>")) | |
9344 | { | |
9345 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, NULL); | |
9346 | expr.set_error (); | |
9347 | break; | |
9348 | } | |
9349 | t2 = c_parser_type_name (parser); | |
9350 | if (t2 == NULL) | |
9351 | { | |
9352 | expr.set_error (); | |
9353 | break; | |
9354 | } | |
4bbf545b | 9355 | location_t close_paren_loc = c_parser_peek_token (parser)->location; |
32129a17 | 9356 | parens.skip_until_found_close (parser); |
27bf414c | 9357 | tree e1, e2; |
9abfe986 AP |
9358 | e1 = groktypename (t1, NULL, NULL); |
9359 | e2 = groktypename (t2, NULL, NULL); | |
9360 | if (e1 == error_mark_node || e2 == error_mark_node) | |
9361 | { | |
8a40fef3 | 9362 | expr.set_error (); |
9abfe986 AP |
9363 | break; |
9364 | } | |
27bf414c | 9365 | |
9abfe986 AP |
9366 | e1 = TYPE_MAIN_VARIANT (e1); |
9367 | e2 = TYPE_MAIN_VARIANT (e2); | |
27bf414c | 9368 | |
9a9d280e AS |
9369 | expr.value |
9370 | = comptypes (e1, e2) ? integer_one_node : integer_zero_node; | |
4bbf545b | 9371 | set_c_expr_source_range (&expr, loc, close_paren_loc); |
27bf414c JM |
9372 | } |
9373 | break; | |
3ca0dc60 JM |
9374 | case RID_BUILTIN_TGMATH: |
9375 | { | |
9376 | vec<c_expr_t, va_gc> *cexpr_list; | |
9377 | location_t close_paren_loc; | |
9378 | ||
9379 | c_parser_consume_token (parser); | |
9380 | if (!c_parser_get_builtin_args (parser, | |
9381 | "__builtin_tgmath", | |
9382 | &cexpr_list, false, | |
9383 | &close_paren_loc)) | |
9384 | { | |
9385 | expr.set_error (); | |
9386 | break; | |
9387 | } | |
9388 | ||
9389 | if (vec_safe_length (cexpr_list) < 3) | |
9390 | { | |
9391 | error_at (loc, "too few arguments to %<__builtin_tgmath%>"); | |
9392 | expr.set_error (); | |
9393 | break; | |
9394 | } | |
9395 | ||
9396 | unsigned int i; | |
9397 | c_expr_t *p; | |
9398 | FOR_EACH_VEC_ELT (*cexpr_list, i, p) | |
9399 | *p = convert_lvalue_to_rvalue (loc, *p, true, true); | |
9400 | unsigned int nargs = check_tgmath_function (&(*cexpr_list)[0], 1); | |
9401 | if (nargs == 0) | |
9402 | { | |
9403 | expr.set_error (); | |
9404 | break; | |
9405 | } | |
9406 | if (vec_safe_length (cexpr_list) < nargs) | |
9407 | { | |
9408 | error_at (loc, "too few arguments to %<__builtin_tgmath%>"); | |
9409 | expr.set_error (); | |
9410 | break; | |
9411 | } | |
9412 | unsigned int num_functions = vec_safe_length (cexpr_list) - nargs; | |
9413 | if (num_functions < 2) | |
9414 | { | |
9415 | error_at (loc, "too few arguments to %<__builtin_tgmath%>"); | |
9416 | expr.set_error (); | |
9417 | break; | |
9418 | } | |
9419 | ||
9420 | /* The first NUM_FUNCTIONS expressions are the function | |
9421 | pointers. The remaining NARGS expressions are the | |
9422 | arguments that are to be passed to one of those | |
9423 | functions, chosen following <tgmath.h> rules. */ | |
9424 | for (unsigned int j = 1; j < num_functions; j++) | |
9425 | { | |
9426 | unsigned int this_nargs | |
9427 | = check_tgmath_function (&(*cexpr_list)[j], j + 1); | |
9428 | if (this_nargs == 0) | |
9429 | { | |
9430 | expr.set_error (); | |
9431 | goto out; | |
9432 | } | |
9433 | if (this_nargs != nargs) | |
9434 | { | |
9435 | error_at ((*cexpr_list)[j].get_location (), | |
9436 | "argument %u of %<__builtin_tgmath%> has " | |
9437 | "wrong number of arguments", j + 1); | |
9438 | expr.set_error (); | |
9439 | goto out; | |
9440 | } | |
9441 | } | |
9442 | ||
9443 | /* The functions all have the same number of arguments. | |
9444 | Determine whether arguments and return types vary in | |
9445 | ways permitted for <tgmath.h> functions. */ | |
9446 | /* The first entry in each of these vectors is for the | |
9447 | return type, subsequent entries for parameter | |
9448 | types. */ | |
9449 | auto_vec<enum tgmath_parm_kind> parm_kind (nargs + 1); | |
9450 | auto_vec<tree> parm_first (nargs + 1); | |
9451 | auto_vec<bool> parm_complex (nargs + 1); | |
9452 | auto_vec<bool> parm_varies (nargs + 1); | |
9453 | tree first_type = TREE_TYPE (TREE_TYPE ((*cexpr_list)[0].value)); | |
9454 | tree first_ret = TYPE_MAIN_VARIANT (TREE_TYPE (first_type)); | |
9455 | parm_first.quick_push (first_ret); | |
9456 | parm_complex.quick_push (TREE_CODE (first_ret) == COMPLEX_TYPE); | |
9457 | parm_varies.quick_push (false); | |
9458 | function_args_iterator iter; | |
9459 | tree t; | |
9460 | unsigned int argpos; | |
9461 | FOREACH_FUNCTION_ARGS (first_type, t, iter) | |
9462 | { | |
9463 | if (t == void_type_node) | |
9464 | break; | |
9465 | parm_first.quick_push (TYPE_MAIN_VARIANT (t)); | |
9466 | parm_complex.quick_push (TREE_CODE (t) == COMPLEX_TYPE); | |
9467 | parm_varies.quick_push (false); | |
9468 | } | |
9469 | for (unsigned int j = 1; j < num_functions; j++) | |
9470 | { | |
9471 | tree type = TREE_TYPE (TREE_TYPE ((*cexpr_list)[j].value)); | |
9472 | tree ret = TYPE_MAIN_VARIANT (TREE_TYPE (type)); | |
9473 | if (ret != parm_first[0]) | |
9474 | { | |
9475 | parm_varies[0] = true; | |
9476 | if (!SCALAR_FLOAT_TYPE_P (parm_first[0]) | |
9477 | && !COMPLEX_FLOAT_TYPE_P (parm_first[0])) | |
9478 | { | |
9479 | error_at ((*cexpr_list)[0].get_location (), | |
9480 | "invalid type-generic return type for " | |
9481 | "argument %u of %<__builtin_tgmath%>", | |
9482 | 1); | |
9483 | expr.set_error (); | |
9484 | goto out; | |
9485 | } | |
9486 | if (!SCALAR_FLOAT_TYPE_P (ret) | |
9487 | && !COMPLEX_FLOAT_TYPE_P (ret)) | |
9488 | { | |
9489 | error_at ((*cexpr_list)[j].get_location (), | |
9490 | "invalid type-generic return type for " | |
9491 | "argument %u of %<__builtin_tgmath%>", | |
9492 | j + 1); | |
9493 | expr.set_error (); | |
9494 | goto out; | |
9495 | } | |
9496 | } | |
9497 | if (TREE_CODE (ret) == COMPLEX_TYPE) | |
9498 | parm_complex[0] = true; | |
9499 | argpos = 1; | |
9500 | FOREACH_FUNCTION_ARGS (type, t, iter) | |
9501 | { | |
9502 | if (t == void_type_node) | |
9503 | break; | |
9504 | t = TYPE_MAIN_VARIANT (t); | |
9505 | if (t != parm_first[argpos]) | |
9506 | { | |
9507 | parm_varies[argpos] = true; | |
9508 | if (!SCALAR_FLOAT_TYPE_P (parm_first[argpos]) | |
9509 | && !COMPLEX_FLOAT_TYPE_P (parm_first[argpos])) | |
9510 | { | |
9511 | error_at ((*cexpr_list)[0].get_location (), | |
9512 | "invalid type-generic type for " | |
9513 | "argument %u of argument %u of " | |
9514 | "%<__builtin_tgmath%>", argpos, 1); | |
9515 | expr.set_error (); | |
9516 | goto out; | |
9517 | } | |
9518 | if (!SCALAR_FLOAT_TYPE_P (t) | |
9519 | && !COMPLEX_FLOAT_TYPE_P (t)) | |
9520 | { | |
9521 | error_at ((*cexpr_list)[j].get_location (), | |
9522 | "invalid type-generic type for " | |
9523 | "argument %u of argument %u of " | |
9524 | "%<__builtin_tgmath%>", argpos, j + 1); | |
9525 | expr.set_error (); | |
9526 | goto out; | |
9527 | } | |
9528 | } | |
9529 | if (TREE_CODE (t) == COMPLEX_TYPE) | |
9530 | parm_complex[argpos] = true; | |
9531 | argpos++; | |
9532 | } | |
9533 | } | |
9534 | enum tgmath_parm_kind max_variation = tgmath_fixed; | |
9535 | for (unsigned int j = 0; j <= nargs; j++) | |
9536 | { | |
9537 | enum tgmath_parm_kind this_kind; | |
9538 | if (parm_varies[j]) | |
9539 | { | |
9540 | if (parm_complex[j]) | |
9541 | max_variation = this_kind = tgmath_complex; | |
9542 | else | |
9543 | { | |
9544 | this_kind = tgmath_real; | |
9545 | if (max_variation != tgmath_complex) | |
9546 | max_variation = tgmath_real; | |
9547 | } | |
9548 | } | |
9549 | else | |
9550 | this_kind = tgmath_fixed; | |
9551 | parm_kind.quick_push (this_kind); | |
9552 | } | |
9553 | if (max_variation == tgmath_fixed) | |
9554 | { | |
9555 | error_at (loc, "function arguments of %<__builtin_tgmath%> " | |
9556 | "all have the same type"); | |
9557 | expr.set_error (); | |
9558 | break; | |
9559 | } | |
9560 | ||
9561 | /* Identify a parameter (not the return type) that varies, | |
9562 | including with complex types if any variation includes | |
9563 | complex types; there must be at least one such | |
9564 | parameter. */ | |
9565 | unsigned int tgarg = 0; | |
9566 | for (unsigned int j = 1; j <= nargs; j++) | |
9567 | if (parm_kind[j] == max_variation) | |
9568 | { | |
9569 | tgarg = j; | |
9570 | break; | |
9571 | } | |
9572 | if (tgarg == 0) | |
9573 | { | |
9574 | error_at (loc, "function arguments of %<__builtin_tgmath%> " | |
9575 | "lack type-generic parameter"); | |
9576 | expr.set_error (); | |
9577 | break; | |
9578 | } | |
9579 | ||
9580 | /* Determine the type of the relevant parameter for each | |
9581 | function. */ | |
9582 | auto_vec<tree> tg_type (num_functions); | |
9583 | for (unsigned int j = 0; j < num_functions; j++) | |
9584 | { | |
9585 | tree type = TREE_TYPE (TREE_TYPE ((*cexpr_list)[j].value)); | |
9586 | argpos = 1; | |
9587 | FOREACH_FUNCTION_ARGS (type, t, iter) | |
9588 | { | |
9589 | if (argpos == tgarg) | |
9590 | { | |
9591 | tg_type.quick_push (TYPE_MAIN_VARIANT (t)); | |
9592 | break; | |
9593 | } | |
9594 | argpos++; | |
9595 | } | |
9596 | } | |
9597 | ||
9598 | /* Verify that the corresponding types are different for | |
9599 | all the listed functions. Also determine whether all | |
9600 | the types are complex, whether all the types are | |
9601 | standard or binary, and whether all the types are | |
9602 | decimal. */ | |
9603 | bool all_complex = true; | |
9604 | bool all_binary = true; | |
9605 | bool all_decimal = true; | |
9606 | hash_set<tree> tg_types; | |
9607 | FOR_EACH_VEC_ELT (tg_type, i, t) | |
9608 | { | |
9609 | if (TREE_CODE (t) == COMPLEX_TYPE) | |
9610 | all_decimal = false; | |
9611 | else | |
9612 | { | |
9613 | all_complex = false; | |
9614 | if (DECIMAL_FLOAT_TYPE_P (t)) | |
9615 | all_binary = false; | |
9616 | else | |
9617 | all_decimal = false; | |
9618 | } | |
9619 | if (tg_types.add (t)) | |
9620 | { | |
9621 | error_at ((*cexpr_list)[i].get_location (), | |
9622 | "duplicate type-generic parameter type for " | |
9623 | "function argument %u of %<__builtin_tgmath%>", | |
9624 | i + 1); | |
9625 | expr.set_error (); | |
9626 | goto out; | |
9627 | } | |
9628 | } | |
9629 | ||
9630 | /* Verify that other parameters and the return type whose | |
9631 | types vary have their types varying in the correct | |
9632 | way. */ | |
9633 | for (unsigned int j = 0; j < num_functions; j++) | |
9634 | { | |
9635 | tree exp_type = tg_type[j]; | |
9636 | tree exp_real_type = exp_type; | |
9637 | if (TREE_CODE (exp_type) == COMPLEX_TYPE) | |
9638 | exp_real_type = TREE_TYPE (exp_type); | |
9639 | tree type = TREE_TYPE (TREE_TYPE ((*cexpr_list)[j].value)); | |
9640 | tree ret = TYPE_MAIN_VARIANT (TREE_TYPE (type)); | |
9641 | if ((parm_kind[0] == tgmath_complex && ret != exp_type) | |
9642 | || (parm_kind[0] == tgmath_real && ret != exp_real_type)) | |
9643 | { | |
9644 | error_at ((*cexpr_list)[j].get_location (), | |
9645 | "bad return type for function argument %u " | |
9646 | "of %<__builtin_tgmath%>", j + 1); | |
9647 | expr.set_error (); | |
9648 | goto out; | |
9649 | } | |
9650 | argpos = 1; | |
9651 | FOREACH_FUNCTION_ARGS (type, t, iter) | |
9652 | { | |
9653 | if (t == void_type_node) | |
9654 | break; | |
9655 | t = TYPE_MAIN_VARIANT (t); | |
9656 | if ((parm_kind[argpos] == tgmath_complex | |
9657 | && t != exp_type) | |
9658 | || (parm_kind[argpos] == tgmath_real | |
9659 | && t != exp_real_type)) | |
9660 | { | |
9661 | error_at ((*cexpr_list)[j].get_location (), | |
9662 | "bad type for argument %u of " | |
9663 | "function argument %u of " | |
9664 | "%<__builtin_tgmath%>", argpos, j + 1); | |
9665 | expr.set_error (); | |
9666 | goto out; | |
9667 | } | |
9668 | argpos++; | |
9669 | } | |
9670 | } | |
9671 | ||
9672 | /* The functions listed are a valid set of functions for a | |
9673 | <tgmath.h> macro to select between. Identify the | |
9674 | matching function, if any. First, the argument types | |
9675 | must be combined following <tgmath.h> rules. Integer | |
9676 | types are treated as _Decimal64 if any type-generic | |
9677 | argument is decimal, or if the only alternatives for | |
9678 | type-generic arguments are of decimal types, and are | |
9679 | otherwise treated as double (or _Complex double for | |
c5c5822a JM |
9680 | complex integer types, or _Float64 or _Complex _Float64 |
9681 | if all the return types are the same _FloatN or | |
9682 | _FloatNx type). After that adjustment, types are | |
9683 | combined following the usual arithmetic conversions. | |
9684 | If the function only accepts complex arguments, a | |
9685 | complex type is produced. */ | |
3ca0dc60 JM |
9686 | bool arg_complex = all_complex; |
9687 | bool arg_binary = all_binary; | |
9688 | bool arg_int_decimal = all_decimal; | |
9689 | for (unsigned int j = 1; j <= nargs; j++) | |
9690 | { | |
9691 | if (parm_kind[j] == tgmath_fixed) | |
9692 | continue; | |
9693 | c_expr_t *ce = &(*cexpr_list)[num_functions + j - 1]; | |
9694 | tree type = TREE_TYPE (ce->value); | |
9695 | if (!INTEGRAL_TYPE_P (type) | |
9696 | && !SCALAR_FLOAT_TYPE_P (type) | |
9697 | && TREE_CODE (type) != COMPLEX_TYPE) | |
9698 | { | |
9699 | error_at (ce->get_location (), | |
9700 | "invalid type of argument %u of type-generic " | |
9701 | "function", j); | |
9702 | expr.set_error (); | |
9703 | goto out; | |
9704 | } | |
9705 | if (DECIMAL_FLOAT_TYPE_P (type)) | |
9706 | { | |
9707 | arg_int_decimal = true; | |
9708 | if (all_complex) | |
9709 | { | |
9710 | error_at (ce->get_location (), | |
9711 | "decimal floating-point argument %u to " | |
9712 | "complex-only type-generic function", j); | |
9713 | expr.set_error (); | |
9714 | goto out; | |
9715 | } | |
9716 | else if (all_binary) | |
9717 | { | |
9718 | error_at (ce->get_location (), | |
9719 | "decimal floating-point argument %u to " | |
9720 | "binary-only type-generic function", j); | |
9721 | expr.set_error (); | |
9722 | goto out; | |
9723 | } | |
9724 | else if (arg_complex) | |
9725 | { | |
9726 | error_at (ce->get_location (), | |
9727 | "both complex and decimal floating-point " | |
9728 | "arguments to type-generic function"); | |
9729 | expr.set_error (); | |
9730 | goto out; | |
9731 | } | |
9732 | else if (arg_binary) | |
9733 | { | |
9734 | error_at (ce->get_location (), | |
9735 | "both binary and decimal floating-point " | |
9736 | "arguments to type-generic function"); | |
9737 | expr.set_error (); | |
9738 | goto out; | |
9739 | } | |
9740 | } | |
9741 | else if (TREE_CODE (type) == COMPLEX_TYPE) | |
9742 | { | |
9743 | arg_complex = true; | |
9744 | if (COMPLEX_FLOAT_TYPE_P (type)) | |
9745 | arg_binary = true; | |
9746 | if (all_decimal) | |
9747 | { | |
9748 | error_at (ce->get_location (), | |
9749 | "complex argument %u to " | |
9750 | "decimal-only type-generic function", j); | |
9751 | expr.set_error (); | |
9752 | goto out; | |
9753 | } | |
9754 | else if (arg_int_decimal) | |
9755 | { | |
9756 | error_at (ce->get_location (), | |
9757 | "both complex and decimal floating-point " | |
9758 | "arguments to type-generic function"); | |
9759 | expr.set_error (); | |
9760 | goto out; | |
9761 | } | |
9762 | } | |
9763 | else if (SCALAR_FLOAT_TYPE_P (type)) | |
9764 | { | |
9765 | arg_binary = true; | |
9766 | if (all_decimal) | |
9767 | { | |
9768 | error_at (ce->get_location (), | |
9769 | "binary argument %u to " | |
9770 | "decimal-only type-generic function", j); | |
9771 | expr.set_error (); | |
9772 | goto out; | |
9773 | } | |
9774 | else if (arg_int_decimal) | |
9775 | { | |
9776 | error_at (ce->get_location (), | |
9777 | "both binary and decimal floating-point " | |
9778 | "arguments to type-generic function"); | |
9779 | expr.set_error (); | |
9780 | goto out; | |
9781 | } | |
9782 | } | |
9783 | } | |
c5c5822a JM |
9784 | /* For a macro rounding its result to a narrower type, map |
9785 | integer types to _Float64 not double if the return type | |
9786 | is a _FloatN or _FloatNx type. */ | |
9787 | bool arg_int_float64 = false; | |
9788 | if (parm_kind[0] == tgmath_fixed | |
9789 | && SCALAR_FLOAT_TYPE_P (parm_first[0]) | |
9790 | && float64_type_node != NULL_TREE) | |
9791 | for (unsigned int j = 0; j < NUM_FLOATN_NX_TYPES; j++) | |
9792 | if (parm_first[0] == FLOATN_TYPE_NODE (j)) | |
9793 | { | |
9794 | arg_int_float64 = true; | |
9795 | break; | |
9796 | } | |
3ca0dc60 JM |
9797 | tree arg_real = NULL_TREE; |
9798 | for (unsigned int j = 1; j <= nargs; j++) | |
9799 | { | |
9800 | if (parm_kind[j] == tgmath_fixed) | |
9801 | continue; | |
9802 | c_expr_t *ce = &(*cexpr_list)[num_functions + j - 1]; | |
9803 | tree type = TYPE_MAIN_VARIANT (TREE_TYPE (ce->value)); | |
9804 | if (TREE_CODE (type) == COMPLEX_TYPE) | |
9805 | type = TREE_TYPE (type); | |
9806 | if (INTEGRAL_TYPE_P (type)) | |
9807 | type = (arg_int_decimal | |
9808 | ? dfloat64_type_node | |
c5c5822a JM |
9809 | : arg_int_float64 |
9810 | ? float64_type_node | |
3ca0dc60 JM |
9811 | : double_type_node); |
9812 | if (arg_real == NULL_TREE) | |
9813 | arg_real = type; | |
9814 | else | |
9815 | arg_real = common_type (arg_real, type); | |
9816 | if (arg_real == error_mark_node) | |
9817 | { | |
9818 | expr.set_error (); | |
9819 | goto out; | |
9820 | } | |
9821 | } | |
9822 | tree arg_type = (arg_complex | |
9823 | ? build_complex_type (arg_real) | |
9824 | : arg_real); | |
9825 | ||
9826 | /* Look for a function to call with type-generic parameter | |
9827 | type ARG_TYPE. */ | |
9828 | c_expr_t *fn = NULL; | |
9829 | for (unsigned int j = 0; j < num_functions; j++) | |
9830 | { | |
9831 | if (tg_type[j] == arg_type) | |
9832 | { | |
9833 | fn = &(*cexpr_list)[j]; | |
9834 | break; | |
9835 | } | |
9836 | } | |
9837 | if (fn == NULL | |
9838 | && parm_kind[0] == tgmath_fixed | |
9839 | && SCALAR_FLOAT_TYPE_P (parm_first[0])) | |
9840 | { | |
9841 | /* Presume this is a macro that rounds its result to a | |
9842 | narrower type, and look for the first function with | |
9843 | at least the range and precision of the argument | |
9844 | type. */ | |
9845 | for (unsigned int j = 0; j < num_functions; j++) | |
9846 | { | |
9847 | if (arg_complex | |
9848 | != (TREE_CODE (tg_type[j]) == COMPLEX_TYPE)) | |
9849 | continue; | |
9850 | tree real_tg_type = (arg_complex | |
9851 | ? TREE_TYPE (tg_type[j]) | |
9852 | : tg_type[j]); | |
9853 | if (DECIMAL_FLOAT_TYPE_P (arg_real) | |
9854 | != DECIMAL_FLOAT_TYPE_P (real_tg_type)) | |
9855 | continue; | |
9856 | scalar_float_mode arg_mode | |
9857 | = SCALAR_FLOAT_TYPE_MODE (arg_real); | |
9858 | scalar_float_mode tg_mode | |
9859 | = SCALAR_FLOAT_TYPE_MODE (real_tg_type); | |
9860 | const real_format *arg_fmt = REAL_MODE_FORMAT (arg_mode); | |
9861 | const real_format *tg_fmt = REAL_MODE_FORMAT (tg_mode); | |
9862 | if (arg_fmt->b == tg_fmt->b | |
9863 | && arg_fmt->p <= tg_fmt->p | |
9864 | && arg_fmt->emax <= tg_fmt->emax | |
9865 | && (arg_fmt->emin - arg_fmt->p | |
9866 | >= tg_fmt->emin - tg_fmt->p)) | |
9867 | { | |
9868 | fn = &(*cexpr_list)[j]; | |
9869 | break; | |
9870 | } | |
9871 | } | |
9872 | } | |
9873 | if (fn == NULL) | |
9874 | { | |
9875 | error_at (loc, "no matching function for type-generic call"); | |
9876 | expr.set_error (); | |
9877 | break; | |
9878 | } | |
9879 | ||
9880 | /* Construct a call to FN. */ | |
9881 | vec<tree, va_gc> *args; | |
9882 | vec_alloc (args, nargs); | |
9883 | vec<tree, va_gc> *origtypes; | |
9884 | vec_alloc (origtypes, nargs); | |
9885 | auto_vec<location_t> arg_loc (nargs); | |
9886 | for (unsigned int j = 0; j < nargs; j++) | |
9887 | { | |
9888 | c_expr_t *ce = &(*cexpr_list)[num_functions + j]; | |
9889 | args->quick_push (ce->value); | |
9890 | arg_loc.quick_push (ce->get_location ()); | |
9891 | origtypes->quick_push (ce->original_type); | |
9892 | } | |
9893 | expr.value = c_build_function_call_vec (loc, arg_loc, fn->value, | |
9894 | args, origtypes); | |
9895 | set_c_expr_source_range (&expr, loc, close_paren_loc); | |
9896 | break; | |
9897 | } | |
74893f25 RH |
9898 | case RID_BUILTIN_CALL_WITH_STATIC_CHAIN: |
9899 | { | |
9900 | vec<c_expr_t, va_gc> *cexpr_list; | |
9901 | c_expr_t *e2_p; | |
9902 | tree chain_value; | |
46c6e1e2 | 9903 | location_t close_paren_loc; |
74893f25 RH |
9904 | |
9905 | c_parser_consume_token (parser); | |
9906 | if (!c_parser_get_builtin_args (parser, | |
9907 | "__builtin_call_with_static_chain", | |
46c6e1e2 DM |
9908 | &cexpr_list, false, |
9909 | &close_paren_loc)) | |
74893f25 | 9910 | { |
8a40fef3 | 9911 | expr.set_error (); |
74893f25 RH |
9912 | break; |
9913 | } | |
9914 | if (vec_safe_length (cexpr_list) != 2) | |
9915 | { | |
9916 | error_at (loc, "wrong number of arguments to " | |
9917 | "%<__builtin_call_with_static_chain%>"); | |
8a40fef3 | 9918 | expr.set_error (); |
74893f25 RH |
9919 | break; |
9920 | } | |
9921 | ||
9922 | expr = (*cexpr_list)[0]; | |
9923 | e2_p = &(*cexpr_list)[1]; | |
9924 | *e2_p = convert_lvalue_to_rvalue (loc, *e2_p, true, true); | |
9925 | chain_value = e2_p->value; | |
9926 | mark_exp_read (chain_value); | |
9927 | ||
9928 | if (TREE_CODE (expr.value) != CALL_EXPR) | |
9929 | error_at (loc, "first argument to " | |
9930 | "%<__builtin_call_with_static_chain%> " | |
9931 | "must be a call expression"); | |
9932 | else if (TREE_CODE (TREE_TYPE (chain_value)) != POINTER_TYPE) | |
9933 | error_at (loc, "second argument to " | |
9934 | "%<__builtin_call_with_static_chain%> " | |
9935 | "must be a pointer type"); | |
9936 | else | |
9937 | CALL_EXPR_STATIC_CHAIN (expr.value) = chain_value; | |
46c6e1e2 | 9938 | set_c_expr_source_range (&expr, loc, close_paren_loc); |
74893f25 RH |
9939 | break; |
9940 | } | |
d4a83c10 | 9941 | case RID_BUILTIN_COMPLEX: |
86785830 | 9942 | { |
9771b263 | 9943 | vec<c_expr_t, va_gc> *cexpr_list; |
86785830 | 9944 | c_expr_t *e1_p, *e2_p; |
46c6e1e2 | 9945 | location_t close_paren_loc; |
86785830 | 9946 | |
f90e8e2e AS |
9947 | c_parser_consume_token (parser); |
9948 | if (!c_parser_get_builtin_args (parser, | |
9949 | "__builtin_complex", | |
46c6e1e2 DM |
9950 | &cexpr_list, false, |
9951 | &close_paren_loc)) | |
f90e8e2e | 9952 | { |
8a40fef3 | 9953 | expr.set_error (); |
f90e8e2e AS |
9954 | break; |
9955 | } | |
9956 | ||
9771b263 | 9957 | if (vec_safe_length (cexpr_list) != 2) |
f90e8e2e AS |
9958 | { |
9959 | error_at (loc, "wrong number of arguments to " | |
9960 | "%<__builtin_complex%>"); | |
8a40fef3 | 9961 | expr.set_error (); |
f90e8e2e AS |
9962 | break; |
9963 | } | |
86785830 | 9964 | |
9771b263 DN |
9965 | e1_p = &(*cexpr_list)[0]; |
9966 | e2_p = &(*cexpr_list)[1]; | |
86785830 | 9967 | |
267bac10 | 9968 | *e1_p = convert_lvalue_to_rvalue (loc, *e1_p, true, true); |
86785830 AS |
9969 | if (TREE_CODE (e1_p->value) == EXCESS_PRECISION_EXPR) |
9970 | e1_p->value = convert (TREE_TYPE (e1_p->value), | |
9971 | TREE_OPERAND (e1_p->value, 0)); | |
267bac10 | 9972 | *e2_p = convert_lvalue_to_rvalue (loc, *e2_p, true, true); |
86785830 AS |
9973 | if (TREE_CODE (e2_p->value) == EXCESS_PRECISION_EXPR) |
9974 | e2_p->value = convert (TREE_TYPE (e2_p->value), | |
9975 | TREE_OPERAND (e2_p->value, 0)); | |
9976 | if (!SCALAR_FLOAT_TYPE_P (TREE_TYPE (e1_p->value)) | |
9977 | || DECIMAL_FLOAT_TYPE_P (TREE_TYPE (e1_p->value)) | |
9978 | || !SCALAR_FLOAT_TYPE_P (TREE_TYPE (e2_p->value)) | |
9979 | || DECIMAL_FLOAT_TYPE_P (TREE_TYPE (e2_p->value))) | |
f90e8e2e AS |
9980 | { |
9981 | error_at (loc, "%<__builtin_complex%> operand " | |
9982 | "not of real binary floating-point type"); | |
8a40fef3 | 9983 | expr.set_error (); |
f90e8e2e AS |
9984 | break; |
9985 | } | |
86785830 AS |
9986 | if (TYPE_MAIN_VARIANT (TREE_TYPE (e1_p->value)) |
9987 | != TYPE_MAIN_VARIANT (TREE_TYPE (e2_p->value))) | |
f90e8e2e AS |
9988 | { |
9989 | error_at (loc, | |
9990 | "%<__builtin_complex%> operands of different types"); | |
8a40fef3 | 9991 | expr.set_error (); |
f90e8e2e AS |
9992 | break; |
9993 | } | |
f3bede71 MP |
9994 | pedwarn_c90 (loc, OPT_Wpedantic, |
9995 | "ISO C90 does not support complex types"); | |
46c6e1e2 DM |
9996 | expr.value = build2_loc (loc, COMPLEX_EXPR, |
9997 | build_complex_type | |
9998 | (TYPE_MAIN_VARIANT | |
9999 | (TREE_TYPE (e1_p->value))), | |
10000 | e1_p->value, e2_p->value); | |
10001 | set_c_expr_source_range (&expr, loc, close_paren_loc); | |
f90e8e2e AS |
10002 | break; |
10003 | } | |
10004 | case RID_BUILTIN_SHUFFLE: | |
10005 | { | |
9771b263 | 10006 | vec<c_expr_t, va_gc> *cexpr_list; |
9243c51d JJ |
10007 | unsigned int i; |
10008 | c_expr_t *p; | |
46c6e1e2 | 10009 | location_t close_paren_loc; |
86785830 | 10010 | |
f90e8e2e AS |
10011 | c_parser_consume_token (parser); |
10012 | if (!c_parser_get_builtin_args (parser, | |
10013 | "__builtin_shuffle", | |
46c6e1e2 DM |
10014 | &cexpr_list, false, |
10015 | &close_paren_loc)) | |
f90e8e2e | 10016 | { |
8a40fef3 | 10017 | expr.set_error (); |
f90e8e2e AS |
10018 | break; |
10019 | } | |
10020 | ||
9771b263 | 10021 | FOR_EACH_VEC_SAFE_ELT (cexpr_list, i, p) |
267bac10 | 10022 | *p = convert_lvalue_to_rvalue (loc, *p, true, true); |
9243c51d | 10023 | |
9771b263 | 10024 | if (vec_safe_length (cexpr_list) == 2) |
d8fcab68 JJ |
10025 | expr.value = c_build_vec_perm_expr (loc, (*cexpr_list)[0].value, |
10026 | NULL_TREE, | |
10027 | (*cexpr_list)[1].value); | |
86785830 | 10028 | |
9771b263 | 10029 | else if (vec_safe_length (cexpr_list) == 3) |
d8fcab68 JJ |
10030 | expr.value = c_build_vec_perm_expr (loc, (*cexpr_list)[0].value, |
10031 | (*cexpr_list)[1].value, | |
10032 | (*cexpr_list)[2].value); | |
f90e8e2e AS |
10033 | else |
10034 | { | |
10035 | error_at (loc, "wrong number of arguments to " | |
10036 | "%<__builtin_shuffle%>"); | |
8a40fef3 | 10037 | expr.set_error (); |
f90e8e2e | 10038 | } |
46c6e1e2 | 10039 | set_c_expr_source_range (&expr, loc, close_paren_loc); |
f90e8e2e AS |
10040 | break; |
10041 | } | |
d8fcab68 JJ |
10042 | case RID_BUILTIN_CONVERTVECTOR: |
10043 | { | |
10044 | location_t start_loc = loc; | |
10045 | c_parser_consume_token (parser); | |
10046 | matching_parens parens; | |
10047 | if (!parens.require_open (parser)) | |
10048 | { | |
10049 | expr.set_error (); | |
10050 | break; | |
10051 | } | |
10052 | e1 = c_parser_expr_no_commas (parser, NULL); | |
10053 | mark_exp_read (e1.value); | |
10054 | if (!c_parser_require (parser, CPP_COMMA, "expected %<,%>")) | |
10055 | { | |
10056 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, NULL); | |
10057 | expr.set_error (); | |
10058 | break; | |
10059 | } | |
10060 | loc = c_parser_peek_token (parser)->location; | |
10061 | t1 = c_parser_type_name (parser); | |
10062 | location_t end_loc = c_parser_peek_token (parser)->get_finish (); | |
10063 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, | |
10064 | "expected %<)%>"); | |
10065 | if (t1 == NULL) | |
10066 | expr.set_error (); | |
10067 | else | |
10068 | { | |
10069 | tree type_expr = NULL_TREE; | |
10070 | expr.value = c_build_vec_convert (start_loc, e1.value, loc, | |
10071 | groktypename (t1, &type_expr, | |
10072 | NULL)); | |
10073 | set_c_expr_source_range (&expr, start_loc, end_loc); | |
10074 | } | |
10075 | } | |
10076 | break; | |
27bf414c | 10077 | case RID_AT_SELECTOR: |
27bf414c | 10078 | { |
32129a17 DM |
10079 | gcc_assert (c_dialect_objc ()); |
10080 | c_parser_consume_token (parser); | |
10081 | matching_parens parens; | |
10082 | if (!parens.require_open (parser)) | |
10083 | { | |
10084 | expr.set_error (); | |
10085 | break; | |
10086 | } | |
27bf414c | 10087 | tree sel = c_parser_objc_selector_arg (parser); |
cbd03aee | 10088 | location_t close_loc = c_parser_peek_token (parser)->location; |
32129a17 | 10089 | parens.skip_until_found_close (parser); |
c2255bc4 | 10090 | expr.value = objc_build_selector_expr (loc, sel); |
cbd03aee | 10091 | set_c_expr_source_range (&expr, loc, close_loc); |
27bf414c JM |
10092 | } |
10093 | break; | |
10094 | case RID_AT_PROTOCOL: | |
27bf414c | 10095 | { |
32129a17 DM |
10096 | gcc_assert (c_dialect_objc ()); |
10097 | c_parser_consume_token (parser); | |
10098 | matching_parens parens; | |
10099 | if (!parens.require_open (parser)) | |
10100 | { | |
10101 | expr.set_error (); | |
10102 | break; | |
10103 | } | |
10104 | if (c_parser_next_token_is_not (parser, CPP_NAME)) | |
10105 | { | |
10106 | c_parser_error (parser, "expected identifier"); | |
10107 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, NULL); | |
10108 | expr.set_error (); | |
10109 | break; | |
10110 | } | |
27bf414c JM |
10111 | tree id = c_parser_peek_token (parser)->value; |
10112 | c_parser_consume_token (parser); | |
cbd03aee | 10113 | location_t close_loc = c_parser_peek_token (parser)->location; |
32129a17 | 10114 | parens.skip_until_found_close (parser); |
27bf414c | 10115 | expr.value = objc_build_protocol_expr (id); |
cbd03aee | 10116 | set_c_expr_source_range (&expr, loc, close_loc); |
27bf414c JM |
10117 | } |
10118 | break; | |
10119 | case RID_AT_ENCODE: | |
27bf414c | 10120 | { |
32129a17 DM |
10121 | /* Extension to support C-structures in the archiver. */ |
10122 | gcc_assert (c_dialect_objc ()); | |
10123 | c_parser_consume_token (parser); | |
10124 | matching_parens parens; | |
10125 | if (!parens.require_open (parser)) | |
10126 | { | |
10127 | expr.set_error (); | |
10128 | break; | |
10129 | } | |
10130 | t1 = c_parser_type_name (parser); | |
10131 | if (t1 == NULL) | |
10132 | { | |
10133 | expr.set_error (); | |
10134 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, NULL); | |
10135 | break; | |
10136 | } | |
cbd03aee | 10137 | location_t close_loc = c_parser_peek_token (parser)->location; |
32129a17 | 10138 | parens.skip_until_found_close (parser); |
928c19bb | 10139 | tree type = groktypename (t1, NULL, NULL); |
27bf414c | 10140 | expr.value = objc_build_encode_expr (type); |
cbd03aee | 10141 | set_c_expr_source_range (&expr, loc, close_loc); |
27bf414c JM |
10142 | } |
10143 | break; | |
433cc7b0 TT |
10144 | case RID_GENERIC: |
10145 | expr = c_parser_generic_selection (parser); | |
10146 | break; | |
27bf414c JM |
10147 | default: |
10148 | c_parser_error (parser, "expected expression"); | |
8a40fef3 | 10149 | expr.set_error (); |
27bf414c JM |
10150 | break; |
10151 | } | |
10152 | break; | |
10153 | case CPP_OPEN_SQUARE: | |
10154 | if (c_dialect_objc ()) | |
10155 | { | |
10156 | tree receiver, args; | |
10157 | c_parser_consume_token (parser); | |
10158 | receiver = c_parser_objc_receiver (parser); | |
10159 | args = c_parser_objc_message_args (parser); | |
cbd03aee | 10160 | location_t close_loc = c_parser_peek_token (parser)->location; |
27bf414c JM |
10161 | c_parser_skip_until_found (parser, CPP_CLOSE_SQUARE, |
10162 | "expected %<]%>"); | |
eb345401 | 10163 | expr.value = objc_build_message_expr (receiver, args); |
cbd03aee | 10164 | set_c_expr_source_range (&expr, loc, close_loc); |
27bf414c JM |
10165 | break; |
10166 | } | |
10167 | /* Else fall through to report error. */ | |
191816a3 | 10168 | /* FALLTHRU */ |
27bf414c JM |
10169 | default: |
10170 | c_parser_error (parser, "expected expression"); | |
8a40fef3 | 10171 | expr.set_error (); |
27bf414c JM |
10172 | break; |
10173 | } | |
3ca0dc60 | 10174 | out: |
a10704e1 DM |
10175 | return c_parser_postfix_expression_after_primary |
10176 | (parser, EXPR_LOC_OR_LOC (expr.value, loc), expr); | |
27bf414c JM |
10177 | } |
10178 | ||
10179 | /* Parse a postfix expression after a parenthesized type name: the | |
10180 | brace-enclosed initializer of a compound literal, possibly followed | |
10181 | by some postfix operators. This is separate because it is not | |
10182 | possible to tell until after the type name whether a cast | |
10183 | expression has a cast or a compound literal, or whether the operand | |
10184 | of sizeof is a parenthesized type name or starts with a compound | |
24b97832 ILT |
10185 | literal. TYPE_LOC is the location where TYPE_NAME starts--the |
10186 | location of the first token after the parentheses around the type | |
10187 | name. */ | |
27bf414c JM |
10188 | |
10189 | static struct c_expr | |
10190 | c_parser_postfix_expression_after_paren_type (c_parser *parser, | |
24b97832 ILT |
10191 | struct c_type_name *type_name, |
10192 | location_t type_loc) | |
27bf414c JM |
10193 | { |
10194 | tree type; | |
10195 | struct c_expr init; | |
928c19bb | 10196 | bool non_const; |
27bf414c | 10197 | struct c_expr expr; |
c7412148 | 10198 | location_t start_loc; |
928c19bb JM |
10199 | tree type_expr = NULL_TREE; |
10200 | bool type_expr_const = true; | |
c2255bc4 | 10201 | check_compound_literal_type (type_loc, type_name); |
5dd9a9d0 DM |
10202 | rich_location richloc (line_table, type_loc); |
10203 | start_init (NULL_TREE, NULL, 0, &richloc); | |
928c19bb | 10204 | type = groktypename (type_name, &type_expr, &type_expr_const); |
c7412148 | 10205 | start_loc = c_parser_peek_token (parser)->location; |
85cad37c | 10206 | if (type != error_mark_node && C_TYPE_VARIABLE_SIZE (type)) |
27bf414c | 10207 | { |
24b97832 | 10208 | error_at (type_loc, "compound literal has variable size"); |
27bf414c JM |
10209 | type = error_mark_node; |
10210 | } | |
16595a1f | 10211 | init = c_parser_braced_init (parser, type, false, NULL); |
27bf414c | 10212 | finish_init (); |
d033409e | 10213 | maybe_warn_string_init (type_loc, type, init); |
27bf414c | 10214 | |
36c5e70a BE |
10215 | if (type != error_mark_node |
10216 | && !ADDR_SPACE_GENERIC_P (TYPE_ADDR_SPACE (type)) | |
10217 | && current_function_decl) | |
10218 | { | |
10219 | error ("compound literal qualified by address-space qualifier"); | |
10220 | type = error_mark_node; | |
10221 | } | |
10222 | ||
f3bede71 | 10223 | pedwarn_c90 (start_loc, OPT_Wpedantic, "ISO C90 forbids compound literals"); |
928c19bb JM |
10224 | non_const = ((init.value && TREE_CODE (init.value) == CONSTRUCTOR) |
10225 | ? CONSTRUCTOR_NON_CONST (init.value) | |
10226 | : init.original_code == C_MAYBE_CONST_EXPR); | |
10227 | non_const |= !type_expr_const; | |
4b2b493f JM |
10228 | unsigned int alignas_align = 0; |
10229 | if (type != error_mark_node | |
10230 | && type_name->specs->align_log != -1) | |
10231 | { | |
10232 | alignas_align = 1U << type_name->specs->align_log; | |
10233 | if (alignas_align < min_align_of_type (type)) | |
10234 | { | |
10235 | error_at (type_name->specs->locations[cdw_alignas], | |
10236 | "%<_Alignas%> specifiers cannot reduce " | |
10237 | "alignment of compound literal"); | |
10238 | alignas_align = 0; | |
10239 | } | |
10240 | } | |
10241 | expr.value = build_compound_literal (start_loc, type, init.value, non_const, | |
10242 | alignas_align); | |
bef08b71 | 10243 | set_c_expr_source_range (&expr, init.src_range); |
27bf414c | 10244 | expr.original_code = ERROR_MARK; |
6866c6e8 | 10245 | expr.original_type = NULL; |
a5b5c8b6 MP |
10246 | if (type != error_mark_node |
10247 | && expr.value != error_mark_node | |
10248 | && type_expr) | |
928c19bb JM |
10249 | { |
10250 | if (TREE_CODE (expr.value) == C_MAYBE_CONST_EXPR) | |
10251 | { | |
10252 | gcc_assert (C_MAYBE_CONST_EXPR_PRE (expr.value) == NULL_TREE); | |
10253 | C_MAYBE_CONST_EXPR_PRE (expr.value) = type_expr; | |
10254 | } | |
10255 | else | |
10256 | { | |
10257 | gcc_assert (!non_const); | |
10258 | expr.value = build2 (C_MAYBE_CONST_EXPR, type, | |
10259 | type_expr, expr.value); | |
10260 | } | |
10261 | } | |
c2255bc4 | 10262 | return c_parser_postfix_expression_after_primary (parser, start_loc, expr); |
27bf414c JM |
10263 | } |
10264 | ||
1a4049e7 JJ |
10265 | /* Callback function for sizeof_pointer_memaccess_warning to compare |
10266 | types. */ | |
10267 | ||
10268 | static bool | |
10269 | sizeof_ptr_memacc_comptypes (tree type1, tree type2) | |
10270 | { | |
10271 | return comptypes (type1, type2) == 1; | |
10272 | } | |
10273 | ||
80c6d1f4 | 10274 | /* Warn for patterns where abs-like function appears to be used incorrectly, |
ce6f0888 MJ |
10275 | gracefully ignore any non-abs-like function. The warning location should |
10276 | be LOC. FNDECL is the declaration of called function, it must be a | |
80c6d1f4 MJ |
10277 | BUILT_IN_NORMAL function. ARG is the first and only argument of the |
10278 | call. */ | |
10279 | ||
10280 | static void | |
10281 | warn_for_abs (location_t loc, tree fndecl, tree arg) | |
10282 | { | |
3c2a70cb MS |
10283 | /* Avoid warning in unreachable subexpressions. */ |
10284 | if (c_inhibit_evaluation_warnings) | |
10285 | return; | |
10286 | ||
80c6d1f4 MJ |
10287 | tree atype = TREE_TYPE (arg); |
10288 | ||
10289 | /* Casts from pointers (and thus arrays and fndecls) will generate | |
10290 | -Wint-conversion warnings. Most other wrong types hopefully lead to type | |
10291 | mismatch errors. TODO: Think about what to do with FIXED_POINT_TYPE_P | |
10292 | types and possibly other exotic types. */ | |
10293 | if (!INTEGRAL_TYPE_P (atype) | |
10294 | && !SCALAR_FLOAT_TYPE_P (atype) | |
10295 | && TREE_CODE (atype) != COMPLEX_TYPE) | |
10296 | return; | |
10297 | ||
10298 | enum built_in_function fcode = DECL_FUNCTION_CODE (fndecl); | |
10299 | ||
10300 | switch (fcode) | |
10301 | { | |
10302 | case BUILT_IN_ABS: | |
10303 | case BUILT_IN_LABS: | |
10304 | case BUILT_IN_LLABS: | |
10305 | case BUILT_IN_IMAXABS: | |
10306 | if (!INTEGRAL_TYPE_P (atype)) | |
10307 | { | |
10308 | if (SCALAR_FLOAT_TYPE_P (atype)) | |
10309 | warning_at (loc, OPT_Wabsolute_value, | |
10310 | "using integer absolute value function %qD when " | |
0ecf545c | 10311 | "argument is of floating-point type %qT", |
80c6d1f4 MJ |
10312 | fndecl, atype); |
10313 | else if (TREE_CODE (atype) == COMPLEX_TYPE) | |
10314 | warning_at (loc, OPT_Wabsolute_value, | |
10315 | "using integer absolute value function %qD when " | |
10316 | "argument is of complex type %qT", fndecl, atype); | |
10317 | else | |
10318 | gcc_unreachable (); | |
10319 | return; | |
10320 | } | |
10321 | if (TYPE_UNSIGNED (atype)) | |
10322 | warning_at (loc, OPT_Wabsolute_value, | |
10323 | "taking the absolute value of unsigned type %qT " | |
10324 | "has no effect", atype); | |
10325 | break; | |
10326 | ||
10327 | CASE_FLT_FN (BUILT_IN_FABS): | |
10328 | CASE_FLT_FN_FLOATN_NX (BUILT_IN_FABS): | |
10329 | if (!SCALAR_FLOAT_TYPE_P (atype) | |
10330 | || DECIMAL_FLOAT_MODE_P (TYPE_MODE (atype))) | |
10331 | { | |
10332 | if (INTEGRAL_TYPE_P (atype)) | |
10333 | warning_at (loc, OPT_Wabsolute_value, | |
0ecf545c | 10334 | "using floating-point absolute value function %qD " |
80c6d1f4 MJ |
10335 | "when argument is of integer type %qT", fndecl, atype); |
10336 | else if (DECIMAL_FLOAT_TYPE_P (atype)) | |
10337 | warning_at (loc, OPT_Wabsolute_value, | |
0ecf545c MS |
10338 | "using floating-point absolute value function %qD " |
10339 | "when argument is of decimal floating-point type %qT", | |
80c6d1f4 MJ |
10340 | fndecl, atype); |
10341 | else if (TREE_CODE (atype) == COMPLEX_TYPE) | |
10342 | warning_at (loc, OPT_Wabsolute_value, | |
0ecf545c | 10343 | "using floating-point absolute value function %qD when " |
80c6d1f4 MJ |
10344 | "argument is of complex type %qT", fndecl, atype); |
10345 | else | |
10346 | gcc_unreachable (); | |
10347 | return; | |
10348 | } | |
10349 | break; | |
10350 | ||
10351 | CASE_FLT_FN (BUILT_IN_CABS): | |
10352 | if (TREE_CODE (atype) != COMPLEX_TYPE) | |
10353 | { | |
10354 | if (INTEGRAL_TYPE_P (atype)) | |
10355 | warning_at (loc, OPT_Wabsolute_value, | |
10356 | "using complex absolute value function %qD when " | |
10357 | "argument is of integer type %qT", fndecl, atype); | |
10358 | else if (SCALAR_FLOAT_TYPE_P (atype)) | |
10359 | warning_at (loc, OPT_Wabsolute_value, | |
10360 | "using complex absolute value function %qD when " | |
0ecf545c | 10361 | "argument is of floating-point type %qT", |
80c6d1f4 MJ |
10362 | fndecl, atype); |
10363 | else | |
10364 | gcc_unreachable (); | |
10365 | ||
10366 | return; | |
10367 | } | |
10368 | break; | |
10369 | ||
10370 | case BUILT_IN_FABSD32: | |
10371 | case BUILT_IN_FABSD64: | |
10372 | case BUILT_IN_FABSD128: | |
10373 | if (!DECIMAL_FLOAT_TYPE_P (atype)) | |
10374 | { | |
10375 | if (INTEGRAL_TYPE_P (atype)) | |
10376 | warning_at (loc, OPT_Wabsolute_value, | |
0ecf545c | 10377 | "using decimal floating-point absolute value " |
80c6d1f4 MJ |
10378 | "function %qD when argument is of integer type %qT", |
10379 | fndecl, atype); | |
10380 | else if (SCALAR_FLOAT_TYPE_P (atype)) | |
10381 | warning_at (loc, OPT_Wabsolute_value, | |
0ecf545c MS |
10382 | "using decimal floating-point absolute value " |
10383 | "function %qD when argument is of floating-point " | |
80c6d1f4 MJ |
10384 | "type %qT", fndecl, atype); |
10385 | else if (TREE_CODE (atype) == COMPLEX_TYPE) | |
10386 | warning_at (loc, OPT_Wabsolute_value, | |
0ecf545c | 10387 | "using decimal floating-point absolute value " |
80c6d1f4 MJ |
10388 | "function %qD when argument is of complex type %qT", |
10389 | fndecl, atype); | |
10390 | else | |
10391 | gcc_unreachable (); | |
10392 | return; | |
10393 | } | |
10394 | break; | |
10395 | ||
10396 | default: | |
10397 | return; | |
10398 | } | |
10399 | ||
ce6f0888 MJ |
10400 | if (!TYPE_ARG_TYPES (TREE_TYPE (fndecl))) |
10401 | return; | |
10402 | ||
80c6d1f4 MJ |
10403 | tree ftype = TREE_VALUE (TYPE_ARG_TYPES (TREE_TYPE (fndecl))); |
10404 | if (TREE_CODE (atype) == COMPLEX_TYPE) | |
10405 | { | |
10406 | gcc_assert (TREE_CODE (ftype) == COMPLEX_TYPE); | |
10407 | atype = TREE_TYPE (atype); | |
10408 | ftype = TREE_TYPE (ftype); | |
10409 | } | |
10410 | ||
10411 | if (TYPE_PRECISION (ftype) < TYPE_PRECISION (atype)) | |
10412 | warning_at (loc, OPT_Wabsolute_value, | |
10413 | "absolute value function %qD given an argument of type %qT " | |
10414 | "but has parameter of type %qT which may cause truncation " | |
10415 | "of value", fndecl, atype, ftype); | |
10416 | } | |
10417 | ||
10418 | ||
27bf414c | 10419 | /* Parse a postfix expression after the initial primary or compound |
c2255bc4 AH |
10420 | literal; that is, parse a series of postfix operators. |
10421 | ||
10422 | EXPR_LOC is the location of the primary expression. */ | |
27bf414c JM |
10423 | |
10424 | static struct c_expr | |
10425 | c_parser_postfix_expression_after_primary (c_parser *parser, | |
c2255bc4 | 10426 | location_t expr_loc, |
27bf414c JM |
10427 | struct c_expr expr) |
10428 | { | |
928c19bb | 10429 | struct c_expr orig_expr; |
bbbbb16a | 10430 | tree ident, idx; |
6ffd47b7 | 10431 | location_t sizeof_arg_loc[3], comp_loc; |
3a785c97 | 10432 | tree sizeof_arg[3]; |
b108f48f | 10433 | unsigned int literal_zero_mask; |
3a785c97 | 10434 | unsigned int i; |
9771b263 | 10435 | vec<tree, va_gc> *exprlist; |
2ee028f1 | 10436 | vec<tree, va_gc> *origtypes = NULL; |
81e5eca8 | 10437 | vec<location_t> arg_loc = vNULL; |
ebedc9a3 DM |
10438 | location_t start; |
10439 | location_t finish; | |
81e5eca8 | 10440 | |
27bf414c JM |
10441 | while (true) |
10442 | { | |
c2255bc4 | 10443 | location_t op_loc = c_parser_peek_token (parser)->location; |
27bf414c JM |
10444 | switch (c_parser_peek_token (parser)->type) |
10445 | { | |
10446 | case CPP_OPEN_SQUARE: | |
10447 | /* Array reference. */ | |
10448 | c_parser_consume_token (parser); | |
5e9d6aa4 JK |
10449 | idx = c_parser_expression (parser).value; |
10450 | c_parser_skip_until_found (parser, CPP_CLOSE_SQUARE, | |
10451 | "expected %<]%>"); | |
10452 | start = expr.get_start (); | |
10453 | finish = parser->tokens_buf[0].location; | |
10454 | expr.value = build_array_ref (op_loc, expr.value, idx); | |
10455 | set_c_expr_source_range (&expr, start, finish); | |
27bf414c | 10456 | expr.original_code = ERROR_MARK; |
6866c6e8 | 10457 | expr.original_type = NULL; |
27bf414c JM |
10458 | break; |
10459 | case CPP_OPEN_PAREN: | |
10460 | /* Function call. */ | |
10461 | c_parser_consume_token (parser); | |
3a785c97 JJ |
10462 | for (i = 0; i < 3; i++) |
10463 | { | |
10464 | sizeof_arg[i] = NULL_TREE; | |
10465 | sizeof_arg_loc[i] = UNKNOWN_LOCATION; | |
10466 | } | |
b108f48f | 10467 | literal_zero_mask = 0; |
27bf414c | 10468 | if (c_parser_next_token_is (parser, CPP_CLOSE_PAREN)) |
bbbbb16a | 10469 | exprlist = NULL; |
27bf414c | 10470 | else |
1a4049e7 | 10471 | exprlist = c_parser_expr_list (parser, true, false, &origtypes, |
81e5eca8 | 10472 | sizeof_arg_loc, sizeof_arg, |
b108f48f | 10473 | &arg_loc, &literal_zero_mask); |
27bf414c JM |
10474 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, |
10475 | "expected %<)%>"); | |
928c19bb | 10476 | orig_expr = expr; |
ebfbbdc5 | 10477 | mark_exp_read (expr.value); |
3a785c97 JJ |
10478 | if (warn_sizeof_pointer_memaccess) |
10479 | sizeof_pointer_memaccess_warning (sizeof_arg_loc, | |
1a4049e7 | 10480 | expr.value, exprlist, |
3a785c97 | 10481 | sizeof_arg, |
1a4049e7 | 10482 | sizeof_ptr_memacc_comptypes); |
80c6d1f4 | 10483 | if (TREE_CODE (expr.value) == FUNCTION_DECL) |
c1e1f433 | 10484 | { |
80c6d1f4 MJ |
10485 | if (fndecl_built_in_p (expr.value, BUILT_IN_MEMSET) |
10486 | && vec_safe_length (exprlist) == 3) | |
10487 | { | |
10488 | tree arg0 = (*exprlist)[0]; | |
10489 | tree arg2 = (*exprlist)[2]; | |
10490 | warn_for_memset (expr_loc, arg0, arg2, literal_zero_mask); | |
10491 | } | |
10492 | if (warn_absolute_value | |
10493 | && fndecl_built_in_p (expr.value, BUILT_IN_NORMAL) | |
10494 | && vec_safe_length (exprlist) == 1) | |
10495 | warn_for_abs (expr_loc, expr.value, (*exprlist)[0]); | |
c1e1f433 | 10496 | } |
b108f48f | 10497 | |
ebedc9a3 DM |
10498 | start = expr.get_start (); |
10499 | finish = parser->tokens_buf[0].get_finish (); | |
8edbfaa6 JJ |
10500 | expr.value |
10501 | = c_build_function_call_vec (expr_loc, arg_loc, expr.value, | |
10502 | exprlist, origtypes); | |
ebedc9a3 DM |
10503 | set_c_expr_source_range (&expr, start, finish); |
10504 | ||
27bf414c | 10505 | expr.original_code = ERROR_MARK; |
928c19bb JM |
10506 | if (TREE_CODE (expr.value) == INTEGER_CST |
10507 | && TREE_CODE (orig_expr.value) == FUNCTION_DECL | |
3d78e008 | 10508 | && fndecl_built_in_p (orig_expr.value, BUILT_IN_CONSTANT_P)) |
928c19bb | 10509 | expr.original_code = C_MAYBE_CONST_EXPR; |
6866c6e8 | 10510 | expr.original_type = NULL; |
9771b263 | 10511 | if (exprlist) |
bbbbb16a | 10512 | { |
c166b898 ILT |
10513 | release_tree_vector (exprlist); |
10514 | release_tree_vector (origtypes); | |
bbbbb16a | 10515 | } |
81e5eca8 | 10516 | arg_loc.release (); |
27bf414c JM |
10517 | break; |
10518 | case CPP_DOT: | |
10519 | /* Structure element reference. */ | |
10520 | c_parser_consume_token (parser); | |
c2255bc4 | 10521 | expr = default_function_array_conversion (expr_loc, expr); |
27bf414c | 10522 | if (c_parser_next_token_is (parser, CPP_NAME)) |
6ffd47b7 DM |
10523 | { |
10524 | c_token *comp_tok = c_parser_peek_token (parser); | |
10525 | ident = comp_tok->value; | |
10526 | comp_loc = comp_tok->location; | |
10527 | } | |
27bf414c JM |
10528 | else |
10529 | { | |
10530 | c_parser_error (parser, "expected identifier"); | |
8a40fef3 | 10531 | expr.set_error (); |
27bf414c | 10532 | expr.original_code = ERROR_MARK; |
6866c6e8 | 10533 | expr.original_type = NULL; |
27bf414c JM |
10534 | return expr; |
10535 | } | |
ebedc9a3 DM |
10536 | start = expr.get_start (); |
10537 | finish = c_parser_peek_token (parser)->get_finish (); | |
27bf414c | 10538 | c_parser_consume_token (parser); |
6ffd47b7 DM |
10539 | expr.value = build_component_ref (op_loc, expr.value, ident, |
10540 | comp_loc); | |
ebedc9a3 | 10541 | set_c_expr_source_range (&expr, start, finish); |
27bf414c | 10542 | expr.original_code = ERROR_MARK; |
6866c6e8 ILT |
10543 | if (TREE_CODE (expr.value) != COMPONENT_REF) |
10544 | expr.original_type = NULL; | |
10545 | else | |
10546 | { | |
10547 | /* Remember the original type of a bitfield. */ | |
10548 | tree field = TREE_OPERAND (expr.value, 1); | |
10549 | if (TREE_CODE (field) != FIELD_DECL) | |
10550 | expr.original_type = NULL; | |
10551 | else | |
10552 | expr.original_type = DECL_BIT_FIELD_TYPE (field); | |
10553 | } | |
27bf414c JM |
10554 | break; |
10555 | case CPP_DEREF: | |
10556 | /* Structure element reference. */ | |
10557 | c_parser_consume_token (parser); | |
267bac10 | 10558 | expr = convert_lvalue_to_rvalue (expr_loc, expr, true, false); |
27bf414c | 10559 | if (c_parser_next_token_is (parser, CPP_NAME)) |
6ffd47b7 DM |
10560 | { |
10561 | c_token *comp_tok = c_parser_peek_token (parser); | |
10562 | ident = comp_tok->value; | |
10563 | comp_loc = comp_tok->location; | |
10564 | } | |
27bf414c JM |
10565 | else |
10566 | { | |
10567 | c_parser_error (parser, "expected identifier"); | |
8a40fef3 | 10568 | expr.set_error (); |
27bf414c | 10569 | expr.original_code = ERROR_MARK; |
6866c6e8 | 10570 | expr.original_type = NULL; |
27bf414c JM |
10571 | return expr; |
10572 | } | |
ebedc9a3 DM |
10573 | start = expr.get_start (); |
10574 | finish = c_parser_peek_token (parser)->get_finish (); | |
27bf414c | 10575 | c_parser_consume_token (parser); |
c2255bc4 AH |
10576 | expr.value = build_component_ref (op_loc, |
10577 | build_indirect_ref (op_loc, | |
c9f9eb5d | 10578 | expr.value, |
dd865ef6 | 10579 | RO_ARROW), |
6ffd47b7 | 10580 | ident, comp_loc); |
ebedc9a3 | 10581 | set_c_expr_source_range (&expr, start, finish); |
27bf414c | 10582 | expr.original_code = ERROR_MARK; |
6866c6e8 ILT |
10583 | if (TREE_CODE (expr.value) != COMPONENT_REF) |
10584 | expr.original_type = NULL; | |
10585 | else | |
10586 | { | |
10587 | /* Remember the original type of a bitfield. */ | |
10588 | tree field = TREE_OPERAND (expr.value, 1); | |
10589 | if (TREE_CODE (field) != FIELD_DECL) | |
10590 | expr.original_type = NULL; | |
10591 | else | |
10592 | expr.original_type = DECL_BIT_FIELD_TYPE (field); | |
10593 | } | |
27bf414c JM |
10594 | break; |
10595 | case CPP_PLUS_PLUS: | |
10596 | /* Postincrement. */ | |
ebedc9a3 DM |
10597 | start = expr.get_start (); |
10598 | finish = c_parser_peek_token (parser)->get_finish (); | |
27bf414c | 10599 | c_parser_consume_token (parser); |
5e9d6aa4 JK |
10600 | expr = default_function_array_read_conversion (expr_loc, expr); |
10601 | expr.value = build_unary_op (op_loc, POSTINCREMENT_EXPR, | |
10602 | expr.value, false); | |
ebedc9a3 | 10603 | set_c_expr_source_range (&expr, start, finish); |
27bf414c | 10604 | expr.original_code = ERROR_MARK; |
6866c6e8 | 10605 | expr.original_type = NULL; |
27bf414c JM |
10606 | break; |
10607 | case CPP_MINUS_MINUS: | |
10608 | /* Postdecrement. */ | |
ebedc9a3 DM |
10609 | start = expr.get_start (); |
10610 | finish = c_parser_peek_token (parser)->get_finish (); | |
27bf414c | 10611 | c_parser_consume_token (parser); |
5e9d6aa4 JK |
10612 | expr = default_function_array_read_conversion (expr_loc, expr); |
10613 | expr.value = build_unary_op (op_loc, POSTDECREMENT_EXPR, | |
10614 | expr.value, false); | |
ebedc9a3 | 10615 | set_c_expr_source_range (&expr, start, finish); |
27bf414c | 10616 | expr.original_code = ERROR_MARK; |
6866c6e8 | 10617 | expr.original_type = NULL; |
27bf414c JM |
10618 | break; |
10619 | default: | |
10620 | return expr; | |
10621 | } | |
10622 | } | |
10623 | } | |
10624 | ||
31dc71a8 | 10625 | /* Parse an expression (C90 6.3.17, C99 6.5.17, C11 6.5.17). |
27bf414c JM |
10626 | |
10627 | expression: | |
10628 | assignment-expression | |
10629 | expression , assignment-expression | |
10630 | */ | |
10631 | ||
10632 | static struct c_expr | |
10633 | c_parser_expression (c_parser *parser) | |
10634 | { | |
267bac10 | 10635 | location_t tloc = c_parser_peek_token (parser)->location; |
27bf414c JM |
10636 | struct c_expr expr; |
10637 | expr = c_parser_expr_no_commas (parser, NULL); | |
267bac10 JM |
10638 | if (c_parser_next_token_is (parser, CPP_COMMA)) |
10639 | expr = convert_lvalue_to_rvalue (tloc, expr, true, false); | |
27bf414c JM |
10640 | while (c_parser_next_token_is (parser, CPP_COMMA)) |
10641 | { | |
10642 | struct c_expr next; | |
056928b2 | 10643 | tree lhsval; |
c2255bc4 AH |
10644 | location_t loc = c_parser_peek_token (parser)->location; |
10645 | location_t expr_loc; | |
27bf414c | 10646 | c_parser_consume_token (parser); |
c2255bc4 | 10647 | expr_loc = c_parser_peek_token (parser)->location; |
056928b2 JJ |
10648 | lhsval = expr.value; |
10649 | while (TREE_CODE (lhsval) == COMPOUND_EXPR) | |
10650 | lhsval = TREE_OPERAND (lhsval, 1); | |
10651 | if (DECL_P (lhsval) || handled_component_p (lhsval)) | |
10652 | mark_exp_read (lhsval); | |
27bf414c | 10653 | next = c_parser_expr_no_commas (parser, NULL); |
267bac10 | 10654 | next = convert_lvalue_to_rvalue (expr_loc, next, true, false); |
c2255bc4 | 10655 | expr.value = build_compound_expr (loc, expr.value, next.value); |
27bf414c | 10656 | expr.original_code = COMPOUND_EXPR; |
81f40b79 | 10657 | expr.original_type = next.original_type; |
27bf414c JM |
10658 | } |
10659 | return expr; | |
10660 | } | |
10661 | ||
267bac10 JM |
10662 | /* Parse an expression and convert functions or arrays to pointers and |
10663 | lvalues to rvalues. */ | |
46bdb9cf JM |
10664 | |
10665 | static struct c_expr | |
10666 | c_parser_expression_conv (c_parser *parser) | |
10667 | { | |
10668 | struct c_expr expr; | |
c2255bc4 | 10669 | location_t loc = c_parser_peek_token (parser)->location; |
46bdb9cf | 10670 | expr = c_parser_expression (parser); |
267bac10 | 10671 | expr = convert_lvalue_to_rvalue (loc, expr, true, false); |
46bdb9cf JM |
10672 | return expr; |
10673 | } | |
10674 | ||
b108f48f JJ |
10675 | /* Helper function of c_parser_expr_list. Check if IDXth (0 based) |
10676 | argument is a literal zero alone and if so, set it in literal_zero_mask. */ | |
10677 | ||
10678 | static inline void | |
10679 | c_parser_check_literal_zero (c_parser *parser, unsigned *literal_zero_mask, | |
10680 | unsigned int idx) | |
10681 | { | |
10682 | if (idx >= HOST_BITS_PER_INT) | |
10683 | return; | |
10684 | ||
10685 | c_token *tok = c_parser_peek_token (parser); | |
10686 | switch (tok->type) | |
10687 | { | |
10688 | case CPP_NUMBER: | |
10689 | case CPP_CHAR: | |
10690 | case CPP_WCHAR: | |
10691 | case CPP_CHAR16: | |
10692 | case CPP_CHAR32: | |
7c5890cc | 10693 | case CPP_UTF8CHAR: |
b108f48f JJ |
10694 | /* If a parameter is literal zero alone, remember it |
10695 | for -Wmemset-transposed-args warning. */ | |
10696 | if (integer_zerop (tok->value) | |
10697 | && !TREE_OVERFLOW (tok->value) | |
10698 | && (c_parser_peek_2nd_token (parser)->type == CPP_COMMA | |
10699 | || c_parser_peek_2nd_token (parser)->type == CPP_CLOSE_PAREN)) | |
10700 | *literal_zero_mask |= 1U << idx; | |
10701 | default: | |
10702 | break; | |
10703 | } | |
10704 | } | |
10705 | ||
46bdb9cf | 10706 | /* Parse a non-empty list of expressions. If CONVERT_P, convert |
267bac10 | 10707 | functions and arrays to pointers and lvalues to rvalues. If |
81e5eca8 MP |
10708 | FOLD_P, fold the expressions. If LOCATIONS is non-NULL, save the |
10709 | locations of function arguments into this vector. | |
27bf414c JM |
10710 | |
10711 | nonempty-expr-list: | |
10712 | assignment-expression | |
10713 | nonempty-expr-list , assignment-expression | |
10714 | */ | |
10715 | ||
9771b263 | 10716 | static vec<tree, va_gc> * |
bbbbb16a | 10717 | c_parser_expr_list (c_parser *parser, bool convert_p, bool fold_p, |
9771b263 | 10718 | vec<tree, va_gc> **p_orig_types, |
81e5eca8 | 10719 | location_t *sizeof_arg_loc, tree *sizeof_arg, |
b108f48f JJ |
10720 | vec<location_t> *locations, |
10721 | unsigned int *literal_zero_mask) | |
27bf414c | 10722 | { |
9771b263 DN |
10723 | vec<tree, va_gc> *ret; |
10724 | vec<tree, va_gc> *orig_types; | |
27bf414c | 10725 | struct c_expr expr; |
3a785c97 | 10726 | unsigned int idx = 0; |
bbbbb16a | 10727 | |
c166b898 | 10728 | ret = make_tree_vector (); |
bbbbb16a ILT |
10729 | if (p_orig_types == NULL) |
10730 | orig_types = NULL; | |
10731 | else | |
c166b898 | 10732 | orig_types = make_tree_vector (); |
bbbbb16a | 10733 | |
b108f48f JJ |
10734 | if (literal_zero_mask) |
10735 | c_parser_check_literal_zero (parser, literal_zero_mask, 0); | |
27bf414c | 10736 | expr = c_parser_expr_no_commas (parser, NULL); |
46bdb9cf | 10737 | if (convert_p) |
7f204c0f | 10738 | expr = convert_lvalue_to_rvalue (expr.get_location (), expr, true, true); |
928c19bb JM |
10739 | if (fold_p) |
10740 | expr.value = c_fully_fold (expr.value, false, NULL); | |
9771b263 DN |
10741 | ret->quick_push (expr.value); |
10742 | if (orig_types) | |
10743 | orig_types->quick_push (expr.original_type); | |
81e5eca8 | 10744 | if (locations) |
7f204c0f | 10745 | locations->safe_push (expr.get_location ()); |
3a785c97 | 10746 | if (sizeof_arg != NULL |
3a785c97 JJ |
10747 | && expr.original_code == SIZEOF_EXPR) |
10748 | { | |
10749 | sizeof_arg[0] = c_last_sizeof_arg; | |
40ffd95f | 10750 | sizeof_arg_loc[0] = c_last_sizeof_loc; |
3a785c97 | 10751 | } |
27bf414c JM |
10752 | while (c_parser_next_token_is (parser, CPP_COMMA)) |
10753 | { | |
10754 | c_parser_consume_token (parser); | |
b108f48f JJ |
10755 | if (literal_zero_mask) |
10756 | c_parser_check_literal_zero (parser, literal_zero_mask, idx + 1); | |
27bf414c | 10757 | expr = c_parser_expr_no_commas (parser, NULL); |
46bdb9cf | 10758 | if (convert_p) |
7f204c0f DM |
10759 | expr = convert_lvalue_to_rvalue (expr.get_location (), expr, true, |
10760 | true); | |
928c19bb JM |
10761 | if (fold_p) |
10762 | expr.value = c_fully_fold (expr.value, false, NULL); | |
9771b263 DN |
10763 | vec_safe_push (ret, expr.value); |
10764 | if (orig_types) | |
10765 | vec_safe_push (orig_types, expr.original_type); | |
81e5eca8 | 10766 | if (locations) |
7f204c0f | 10767 | locations->safe_push (expr.get_location ()); |
3a785c97 JJ |
10768 | if (++idx < 3 |
10769 | && sizeof_arg != NULL | |
1a4049e7 JJ |
10770 | && expr.original_code == SIZEOF_EXPR) |
10771 | { | |
3a785c97 | 10772 | sizeof_arg[idx] = c_last_sizeof_arg; |
40ffd95f | 10773 | sizeof_arg_loc[idx] = c_last_sizeof_loc; |
1a4049e7 JJ |
10774 | } |
10775 | } | |
9771b263 | 10776 | if (orig_types) |
bbbbb16a | 10777 | *p_orig_types = orig_types; |
27bf414c JM |
10778 | return ret; |
10779 | } | |
27bf414c JM |
10780 | \f |
10781 | /* Parse Objective-C-specific constructs. */ | |
10782 | ||
10783 | /* Parse an objc-class-definition. | |
10784 | ||
10785 | objc-class-definition: | |
10786 | @interface identifier objc-superclass[opt] objc-protocol-refs[opt] | |
10787 | objc-class-instance-variables[opt] objc-methodprotolist @end | |
10788 | @implementation identifier objc-superclass[opt] | |
10789 | objc-class-instance-variables[opt] | |
10790 | @interface identifier ( identifier ) objc-protocol-refs[opt] | |
10791 | objc-methodprotolist @end | |
ec3e9f82 NP |
10792 | @interface identifier ( ) objc-protocol-refs[opt] |
10793 | objc-methodprotolist @end | |
27bf414c JM |
10794 | @implementation identifier ( identifier ) |
10795 | ||
10796 | objc-superclass: | |
10797 | : identifier | |
10798 | ||
10799 | "@interface identifier (" must start "@interface identifier ( | |
10800 | identifier ) ...": objc-methodprotolist in the first production may | |
0fa2e4df | 10801 | not start with a parenthesized identifier as a declarator of a data |
27bf414c JM |
10802 | definition with no declaration specifiers if the objc-superclass, |
10803 | objc-protocol-refs and objc-class-instance-variables are omitted. */ | |
10804 | ||
10805 | static void | |
c165dca7 | 10806 | c_parser_objc_class_definition (c_parser *parser, tree attributes) |
27bf414c JM |
10807 | { |
10808 | bool iface_p; | |
10809 | tree id1; | |
10810 | tree superclass; | |
10811 | if (c_parser_next_token_is_keyword (parser, RID_AT_INTERFACE)) | |
10812 | iface_p = true; | |
10813 | else if (c_parser_next_token_is_keyword (parser, RID_AT_IMPLEMENTATION)) | |
10814 | iface_p = false; | |
10815 | else | |
10816 | gcc_unreachable (); | |
c165dca7 | 10817 | |
27bf414c JM |
10818 | c_parser_consume_token (parser); |
10819 | if (c_parser_next_token_is_not (parser, CPP_NAME)) | |
10820 | { | |
10821 | c_parser_error (parser, "expected identifier"); | |
10822 | return; | |
10823 | } | |
10824 | id1 = c_parser_peek_token (parser)->value; | |
10825 | c_parser_consume_token (parser); | |
10826 | if (c_parser_next_token_is (parser, CPP_OPEN_PAREN)) | |
10827 | { | |
ec3e9f82 | 10828 | /* We have a category or class extension. */ |
27bf414c JM |
10829 | tree id2; |
10830 | tree proto = NULL_TREE; | |
32129a17 DM |
10831 | matching_parens parens; |
10832 | parens.consume_open (parser); | |
27bf414c JM |
10833 | if (c_parser_next_token_is_not (parser, CPP_NAME)) |
10834 | { | |
ec3e9f82 NP |
10835 | if (iface_p && c_parser_next_token_is (parser, CPP_CLOSE_PAREN)) |
10836 | { | |
10837 | /* We have a class extension. */ | |
10838 | id2 = NULL_TREE; | |
10839 | } | |
10840 | else | |
10841 | { | |
10842 | c_parser_error (parser, "expected identifier or %<)%>"); | |
10843 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, NULL); | |
10844 | return; | |
10845 | } | |
10846 | } | |
10847 | else | |
10848 | { | |
10849 | id2 = c_parser_peek_token (parser)->value; | |
10850 | c_parser_consume_token (parser); | |
27bf414c | 10851 | } |
32129a17 | 10852 | parens.skip_until_found_close (parser); |
27bf414c JM |
10853 | if (!iface_p) |
10854 | { | |
10855 | objc_start_category_implementation (id1, id2); | |
10856 | return; | |
10857 | } | |
10858 | if (c_parser_next_token_is (parser, CPP_LESS)) | |
10859 | proto = c_parser_objc_protocol_refs (parser); | |
c165dca7 | 10860 | objc_start_category_interface (id1, id2, proto, attributes); |
27bf414c JM |
10861 | c_parser_objc_methodprotolist (parser); |
10862 | c_parser_require_keyword (parser, RID_AT_END, "expected %<@end%>"); | |
10863 | objc_finish_interface (); | |
10864 | return; | |
10865 | } | |
10866 | if (c_parser_next_token_is (parser, CPP_COLON)) | |
10867 | { | |
10868 | c_parser_consume_token (parser); | |
10869 | if (c_parser_next_token_is_not (parser, CPP_NAME)) | |
10870 | { | |
10871 | c_parser_error (parser, "expected identifier"); | |
10872 | return; | |
10873 | } | |
10874 | superclass = c_parser_peek_token (parser)->value; | |
10875 | c_parser_consume_token (parser); | |
10876 | } | |
10877 | else | |
10878 | superclass = NULL_TREE; | |
10879 | if (iface_p) | |
10880 | { | |
10881 | tree proto = NULL_TREE; | |
10882 | if (c_parser_next_token_is (parser, CPP_LESS)) | |
10883 | proto = c_parser_objc_protocol_refs (parser); | |
c165dca7 | 10884 | objc_start_class_interface (id1, superclass, proto, attributes); |
27bf414c JM |
10885 | } |
10886 | else | |
10887 | objc_start_class_implementation (id1, superclass); | |
10888 | if (c_parser_next_token_is (parser, CPP_OPEN_BRACE)) | |
10889 | c_parser_objc_class_instance_variables (parser); | |
10890 | if (iface_p) | |
10891 | { | |
10892 | objc_continue_interface (); | |
10893 | c_parser_objc_methodprotolist (parser); | |
10894 | c_parser_require_keyword (parser, RID_AT_END, "expected %<@end%>"); | |
10895 | objc_finish_interface (); | |
10896 | } | |
10897 | else | |
10898 | { | |
10899 | objc_continue_implementation (); | |
10900 | return; | |
10901 | } | |
10902 | } | |
10903 | ||
10904 | /* Parse objc-class-instance-variables. | |
10905 | ||
10906 | objc-class-instance-variables: | |
10907 | { objc-instance-variable-decl-list[opt] } | |
10908 | ||
10909 | objc-instance-variable-decl-list: | |
10910 | objc-visibility-spec | |
10911 | objc-instance-variable-decl ; | |
10912 | ; | |
10913 | objc-instance-variable-decl-list objc-visibility-spec | |
10914 | objc-instance-variable-decl-list objc-instance-variable-decl ; | |
10915 | objc-instance-variable-decl-list ; | |
10916 | ||
10917 | objc-visibility-spec: | |
10918 | @private | |
10919 | @protected | |
10920 | @public | |
10921 | ||
10922 | objc-instance-variable-decl: | |
10923 | struct-declaration | |
10924 | */ | |
10925 | ||
10926 | static void | |
10927 | c_parser_objc_class_instance_variables (c_parser *parser) | |
10928 | { | |
10929 | gcc_assert (c_parser_next_token_is (parser, CPP_OPEN_BRACE)); | |
10930 | c_parser_consume_token (parser); | |
10931 | while (c_parser_next_token_is_not (parser, CPP_EOF)) | |
10932 | { | |
10933 | tree decls; | |
10934 | /* Parse any stray semicolon. */ | |
10935 | if (c_parser_next_token_is (parser, CPP_SEMICOLON)) | |
10936 | { | |
c1771a20 | 10937 | pedwarn (c_parser_peek_token (parser)->location, OPT_Wpedantic, |
4e26ba90 | 10938 | "extra semicolon"); |
27bf414c JM |
10939 | c_parser_consume_token (parser); |
10940 | continue; | |
10941 | } | |
10942 | /* Stop if at the end of the instance variables. */ | |
10943 | if (c_parser_next_token_is (parser, CPP_CLOSE_BRACE)) | |
10944 | { | |
10945 | c_parser_consume_token (parser); | |
10946 | break; | |
10947 | } | |
10948 | /* Parse any objc-visibility-spec. */ | |
49b91f05 | 10949 | if (c_parser_next_token_is_keyword (parser, RID_AT_PRIVATE)) |
27bf414c JM |
10950 | { |
10951 | c_parser_consume_token (parser); | |
c37d8c30 | 10952 | objc_set_visibility (OBJC_IVAR_VIS_PRIVATE); |
27bf414c JM |
10953 | continue; |
10954 | } | |
49b91f05 | 10955 | else if (c_parser_next_token_is_keyword (parser, RID_AT_PROTECTED)) |
27bf414c JM |
10956 | { |
10957 | c_parser_consume_token (parser); | |
c37d8c30 | 10958 | objc_set_visibility (OBJC_IVAR_VIS_PROTECTED); |
27bf414c JM |
10959 | continue; |
10960 | } | |
49b91f05 | 10961 | else if (c_parser_next_token_is_keyword (parser, RID_AT_PUBLIC)) |
27bf414c JM |
10962 | { |
10963 | c_parser_consume_token (parser); | |
c37d8c30 IS |
10964 | objc_set_visibility (OBJC_IVAR_VIS_PUBLIC); |
10965 | continue; | |
10966 | } | |
10967 | else if (c_parser_next_token_is_keyword (parser, RID_AT_PACKAGE)) | |
10968 | { | |
10969 | c_parser_consume_token (parser); | |
10970 | objc_set_visibility (OBJC_IVAR_VIS_PACKAGE); | |
27bf414c JM |
10971 | continue; |
10972 | } | |
bc4071dd RH |
10973 | else if (c_parser_next_token_is (parser, CPP_PRAGMA)) |
10974 | { | |
dda1bf61 | 10975 | c_parser_pragma (parser, pragma_external, NULL); |
bc4071dd RH |
10976 | continue; |
10977 | } | |
10978 | ||
27bf414c JM |
10979 | /* Parse some comma-separated declarations. */ |
10980 | decls = c_parser_struct_declaration (parser); | |
4e26ba90 NP |
10981 | if (decls == NULL) |
10982 | { | |
10983 | /* There is a syntax error. We want to skip the offending | |
10984 | tokens up to the next ';' (included) or '}' | |
10985 | (excluded). */ | |
10986 | ||
10987 | /* First, skip manually a ')' or ']'. This is because they | |
10988 | reduce the nesting level, so c_parser_skip_until_found() | |
10989 | wouldn't be able to skip past them. */ | |
10990 | c_token *token = c_parser_peek_token (parser); | |
10991 | if (token->type == CPP_CLOSE_PAREN || token->type == CPP_CLOSE_SQUARE) | |
10992 | c_parser_consume_token (parser); | |
10993 | ||
10994 | /* Then, do the standard skipping. */ | |
10995 | c_parser_skip_until_found (parser, CPP_SEMICOLON, NULL); | |
10996 | ||
10997 | /* We hopefully recovered. Start normal parsing again. */ | |
10998 | parser->error = false; | |
10999 | continue; | |
11000 | } | |
11001 | else | |
11002 | { | |
11003 | /* Comma-separated instance variables are chained together | |
11004 | in reverse order; add them one by one. */ | |
11005 | tree ivar = nreverse (decls); | |
11006 | for (; ivar; ivar = DECL_CHAIN (ivar)) | |
11007 | objc_add_instance_variable (copy_node (ivar)); | |
11008 | } | |
27bf414c JM |
11009 | c_parser_skip_until_found (parser, CPP_SEMICOLON, "expected %<;%>"); |
11010 | } | |
11011 | } | |
11012 | ||
11013 | /* Parse an objc-class-declaration. | |
11014 | ||
11015 | objc-class-declaration: | |
11016 | @class identifier-list ; | |
11017 | */ | |
11018 | ||
11019 | static void | |
11020 | c_parser_objc_class_declaration (c_parser *parser) | |
11021 | { | |
49b91f05 | 11022 | gcc_assert (c_parser_next_token_is_keyword (parser, RID_AT_CLASS)); |
27bf414c JM |
11023 | c_parser_consume_token (parser); |
11024 | /* Any identifiers, including those declared as type names, are OK | |
11025 | here. */ | |
11026 | while (true) | |
11027 | { | |
11028 | tree id; | |
11029 | if (c_parser_next_token_is_not (parser, CPP_NAME)) | |
11030 | { | |
11031 | c_parser_error (parser, "expected identifier"); | |
da57d1b9 NP |
11032 | c_parser_skip_until_found (parser, CPP_SEMICOLON, NULL); |
11033 | parser->error = false; | |
11034 | return; | |
27bf414c JM |
11035 | } |
11036 | id = c_parser_peek_token (parser)->value; | |
32dabdaf | 11037 | objc_declare_class (id); |
27bf414c JM |
11038 | c_parser_consume_token (parser); |
11039 | if (c_parser_next_token_is (parser, CPP_COMMA)) | |
11040 | c_parser_consume_token (parser); | |
11041 | else | |
11042 | break; | |
11043 | } | |
11044 | c_parser_skip_until_found (parser, CPP_SEMICOLON, "expected %<;%>"); | |
27bf414c JM |
11045 | } |
11046 | ||
11047 | /* Parse an objc-alias-declaration. | |
11048 | ||
11049 | objc-alias-declaration: | |
11050 | @compatibility_alias identifier identifier ; | |
11051 | */ | |
11052 | ||
11053 | static void | |
11054 | c_parser_objc_alias_declaration (c_parser *parser) | |
11055 | { | |
11056 | tree id1, id2; | |
11057 | gcc_assert (c_parser_next_token_is_keyword (parser, RID_AT_ALIAS)); | |
11058 | c_parser_consume_token (parser); | |
11059 | if (c_parser_next_token_is_not (parser, CPP_NAME)) | |
11060 | { | |
11061 | c_parser_error (parser, "expected identifier"); | |
11062 | c_parser_skip_until_found (parser, CPP_SEMICOLON, NULL); | |
11063 | return; | |
11064 | } | |
11065 | id1 = c_parser_peek_token (parser)->value; | |
11066 | c_parser_consume_token (parser); | |
11067 | if (c_parser_next_token_is_not (parser, CPP_NAME)) | |
11068 | { | |
11069 | c_parser_error (parser, "expected identifier"); | |
11070 | c_parser_skip_until_found (parser, CPP_SEMICOLON, NULL); | |
11071 | return; | |
11072 | } | |
11073 | id2 = c_parser_peek_token (parser)->value; | |
11074 | c_parser_consume_token (parser); | |
11075 | c_parser_skip_until_found (parser, CPP_SEMICOLON, "expected %<;%>"); | |
11076 | objc_declare_alias (id1, id2); | |
11077 | } | |
11078 | ||
11079 | /* Parse an objc-protocol-definition. | |
11080 | ||
11081 | objc-protocol-definition: | |
11082 | @protocol identifier objc-protocol-refs[opt] objc-methodprotolist @end | |
11083 | @protocol identifier-list ; | |
11084 | ||
11085 | "@protocol identifier ;" should be resolved as "@protocol | |
11086 | identifier-list ;": objc-methodprotolist may not start with a | |
11087 | semicolon in the first alternative if objc-protocol-refs are | |
11088 | omitted. */ | |
11089 | ||
11090 | static void | |
c165dca7 | 11091 | c_parser_objc_protocol_definition (c_parser *parser, tree attributes) |
27bf414c JM |
11092 | { |
11093 | gcc_assert (c_parser_next_token_is_keyword (parser, RID_AT_PROTOCOL)); | |
c165dca7 | 11094 | |
27bf414c JM |
11095 | c_parser_consume_token (parser); |
11096 | if (c_parser_next_token_is_not (parser, CPP_NAME)) | |
11097 | { | |
11098 | c_parser_error (parser, "expected identifier"); | |
11099 | return; | |
11100 | } | |
11101 | if (c_parser_peek_2nd_token (parser)->type == CPP_COMMA | |
11102 | || c_parser_peek_2nd_token (parser)->type == CPP_SEMICOLON) | |
11103 | { | |
27bf414c JM |
11104 | /* Any identifiers, including those declared as type names, are |
11105 | OK here. */ | |
11106 | while (true) | |
11107 | { | |
11108 | tree id; | |
11109 | if (c_parser_next_token_is_not (parser, CPP_NAME)) | |
11110 | { | |
11111 | c_parser_error (parser, "expected identifier"); | |
11112 | break; | |
11113 | } | |
11114 | id = c_parser_peek_token (parser)->value; | |
c59633d9 | 11115 | objc_declare_protocol (id, attributes); |
27bf414c JM |
11116 | c_parser_consume_token (parser); |
11117 | if (c_parser_next_token_is (parser, CPP_COMMA)) | |
11118 | c_parser_consume_token (parser); | |
11119 | else | |
11120 | break; | |
11121 | } | |
11122 | c_parser_skip_until_found (parser, CPP_SEMICOLON, "expected %<;%>"); | |
27bf414c JM |
11123 | } |
11124 | else | |
11125 | { | |
11126 | tree id = c_parser_peek_token (parser)->value; | |
11127 | tree proto = NULL_TREE; | |
11128 | c_parser_consume_token (parser); | |
11129 | if (c_parser_next_token_is (parser, CPP_LESS)) | |
11130 | proto = c_parser_objc_protocol_refs (parser); | |
0bacb8c7 | 11131 | parser->objc_pq_context = true; |
c165dca7 | 11132 | objc_start_protocol (id, proto, attributes); |
27bf414c JM |
11133 | c_parser_objc_methodprotolist (parser); |
11134 | c_parser_require_keyword (parser, RID_AT_END, "expected %<@end%>"); | |
0bacb8c7 | 11135 | parser->objc_pq_context = false; |
27bf414c JM |
11136 | objc_finish_interface (); |
11137 | } | |
11138 | } | |
11139 | ||
11140 | /* Parse an objc-method-type. | |
11141 | ||
11142 | objc-method-type: | |
11143 | + | |
11144 | - | |
27bf414c | 11145 | |
249a82c4 NP |
11146 | Return true if it is a class method (+) and false if it is |
11147 | an instance method (-). | |
11148 | */ | |
11149 | static inline bool | |
27bf414c JM |
11150 | c_parser_objc_method_type (c_parser *parser) |
11151 | { | |
11152 | switch (c_parser_peek_token (parser)->type) | |
11153 | { | |
11154 | case CPP_PLUS: | |
11155 | c_parser_consume_token (parser); | |
249a82c4 | 11156 | return true; |
27bf414c JM |
11157 | case CPP_MINUS: |
11158 | c_parser_consume_token (parser); | |
249a82c4 | 11159 | return false; |
27bf414c JM |
11160 | default: |
11161 | gcc_unreachable (); | |
11162 | } | |
11163 | } | |
11164 | ||
11165 | /* Parse an objc-method-definition. | |
11166 | ||
11167 | objc-method-definition: | |
11168 | objc-method-type objc-method-decl ;[opt] compound-statement | |
11169 | */ | |
11170 | ||
11171 | static void | |
11172 | c_parser_objc_method_definition (c_parser *parser) | |
11173 | { | |
249a82c4 | 11174 | bool is_class_method = c_parser_objc_method_type (parser); |
a04a722b | 11175 | tree decl, attributes = NULL_TREE, expr = NULL_TREE; |
0bacb8c7 | 11176 | parser->objc_pq_context = true; |
a04a722b JM |
11177 | decl = c_parser_objc_method_decl (parser, is_class_method, &attributes, |
11178 | &expr); | |
f7e71da5 IS |
11179 | if (decl == error_mark_node) |
11180 | return; /* Bail here. */ | |
11181 | ||
27bf414c JM |
11182 | if (c_parser_next_token_is (parser, CPP_SEMICOLON)) |
11183 | { | |
11184 | c_parser_consume_token (parser); | |
c1771a20 | 11185 | pedwarn (c_parser_peek_token (parser)->location, OPT_Wpedantic, |
509c9d60 | 11186 | "extra semicolon in method definition specified"); |
27bf414c | 11187 | } |
f7e71da5 | 11188 | |
8f078c08 AP |
11189 | if (!c_parser_next_token_is (parser, CPP_OPEN_BRACE)) |
11190 | { | |
11191 | c_parser_error (parser, "expected %<{%>"); | |
11192 | return; | |
11193 | } | |
f7e71da5 | 11194 | |
0bacb8c7 | 11195 | parser->objc_pq_context = false; |
a04a722b | 11196 | if (objc_start_method_definition (is_class_method, decl, attributes, expr)) |
45547c7f NP |
11197 | { |
11198 | add_stmt (c_parser_compound_statement (parser)); | |
11199 | objc_finish_method_definition (current_function_decl); | |
11200 | } | |
11201 | else | |
11202 | { | |
11203 | /* This code is executed when we find a method definition | |
a26d8862 NP |
11204 | outside of an @implementation context (or invalid for other |
11205 | reasons). Parse the method (to keep going) but do not emit | |
11206 | any code. | |
45547c7f NP |
11207 | */ |
11208 | c_parser_compound_statement (parser); | |
11209 | } | |
27bf414c JM |
11210 | } |
11211 | ||
11212 | /* Parse an objc-methodprotolist. | |
11213 | ||
11214 | objc-methodprotolist: | |
11215 | empty | |
11216 | objc-methodprotolist objc-methodproto | |
11217 | objc-methodprotolist declaration | |
11218 | objc-methodprotolist ; | |
92902b1b IS |
11219 | @optional |
11220 | @required | |
27bf414c JM |
11221 | |
11222 | The declaration is a data definition, which may be missing | |
11223 | declaration specifiers under the same rules and diagnostics as | |
11224 | other data definitions outside functions, and the stray semicolon | |
11225 | is diagnosed the same way as a stray semicolon outside a | |
11226 | function. */ | |
11227 | ||
11228 | static void | |
11229 | c_parser_objc_methodprotolist (c_parser *parser) | |
11230 | { | |
11231 | while (true) | |
11232 | { | |
11233 | /* The list is terminated by @end. */ | |
11234 | switch (c_parser_peek_token (parser)->type) | |
11235 | { | |
11236 | case CPP_SEMICOLON: | |
c1771a20 | 11237 | pedwarn (c_parser_peek_token (parser)->location, OPT_Wpedantic, |
509c9d60 | 11238 | "ISO C does not allow extra %<;%> outside of a function"); |
27bf414c JM |
11239 | c_parser_consume_token (parser); |
11240 | break; | |
11241 | case CPP_PLUS: | |
11242 | case CPP_MINUS: | |
11243 | c_parser_objc_methodproto (parser); | |
11244 | break; | |
b9b58168 | 11245 | case CPP_PRAGMA: |
dda1bf61 | 11246 | c_parser_pragma (parser, pragma_external, NULL); |
b9b58168 | 11247 | break; |
27bf414c JM |
11248 | case CPP_EOF: |
11249 | return; | |
11250 | default: | |
11251 | if (c_parser_next_token_is_keyword (parser, RID_AT_END)) | |
11252 | return; | |
668ea4b1 | 11253 | else if (c_parser_next_token_is_keyword (parser, RID_AT_PROPERTY)) |
f614132b | 11254 | c_parser_objc_at_property_declaration (parser); |
92902b1b IS |
11255 | else if (c_parser_next_token_is_keyword (parser, RID_AT_OPTIONAL)) |
11256 | { | |
11257 | objc_set_method_opt (true); | |
11258 | c_parser_consume_token (parser); | |
11259 | } | |
11260 | else if (c_parser_next_token_is_keyword (parser, RID_AT_REQUIRED)) | |
11261 | { | |
11262 | objc_set_method_opt (false); | |
11263 | c_parser_consume_token (parser); | |
11264 | } | |
11265 | else | |
11266 | c_parser_declaration_or_fndef (parser, false, false, true, | |
acf0174b | 11267 | false, true, NULL, vNULL); |
27bf414c JM |
11268 | break; |
11269 | } | |
11270 | } | |
11271 | } | |
11272 | ||
11273 | /* Parse an objc-methodproto. | |
11274 | ||
11275 | objc-methodproto: | |
11276 | objc-method-type objc-method-decl ; | |
11277 | */ | |
11278 | ||
11279 | static void | |
11280 | c_parser_objc_methodproto (c_parser *parser) | |
11281 | { | |
249a82c4 | 11282 | bool is_class_method = c_parser_objc_method_type (parser); |
f7e71da5 | 11283 | tree decl, attributes = NULL_TREE; |
249a82c4 | 11284 | |
27bf414c | 11285 | /* Remember protocol qualifiers in prototypes. */ |
0bacb8c7 | 11286 | parser->objc_pq_context = true; |
a04a722b JM |
11287 | decl = c_parser_objc_method_decl (parser, is_class_method, &attributes, |
11288 | NULL); | |
f7e71da5 | 11289 | /* Forget protocol qualifiers now. */ |
0bacb8c7 | 11290 | parser->objc_pq_context = false; |
f7e71da5 IS |
11291 | |
11292 | /* Do not allow the presence of attributes to hide an erroneous | |
11293 | method implementation in the interface section. */ | |
11294 | if (!c_parser_next_token_is (parser, CPP_SEMICOLON)) | |
11295 | { | |
11296 | c_parser_error (parser, "expected %<;%>"); | |
11297 | return; | |
11298 | } | |
11299 | ||
11300 | if (decl != error_mark_node) | |
249a82c4 | 11301 | objc_add_method_declaration (is_class_method, decl, attributes); |
f7e71da5 | 11302 | |
27bf414c JM |
11303 | c_parser_skip_until_found (parser, CPP_SEMICOLON, "expected %<;%>"); |
11304 | } | |
11305 | ||
f7e71da5 IS |
11306 | /* If we are at a position that method attributes may be present, check that |
11307 | there are not any parsed already (a syntax error) and then collect any | |
11308 | specified at the current location. Finally, if new attributes were present, | |
11309 | check that the next token is legal ( ';' for decls and '{' for defs). */ | |
11310 | ||
11311 | static bool | |
11312 | c_parser_objc_maybe_method_attributes (c_parser* parser, tree* attributes) | |
11313 | { | |
11314 | bool bad = false; | |
11315 | if (*attributes) | |
11316 | { | |
11317 | c_parser_error (parser, | |
11318 | "method attributes must be specified at the end only"); | |
11319 | *attributes = NULL_TREE; | |
11320 | bad = true; | |
11321 | } | |
11322 | ||
11323 | if (c_parser_next_token_is_keyword (parser, RID_ATTRIBUTE)) | |
783bfe5e | 11324 | *attributes = c_parser_gnu_attributes (parser); |
f7e71da5 IS |
11325 | |
11326 | /* If there were no attributes here, just report any earlier error. */ | |
11327 | if (*attributes == NULL_TREE || bad) | |
11328 | return bad; | |
11329 | ||
11330 | /* If the attributes are followed by a ; or {, then just report any earlier | |
11331 | error. */ | |
11332 | if (c_parser_next_token_is (parser, CPP_SEMICOLON) | |
11333 | || c_parser_next_token_is (parser, CPP_OPEN_BRACE)) | |
11334 | return bad; | |
11335 | ||
11336 | /* We've got attributes, but not at the end. */ | |
11337 | c_parser_error (parser, | |
11338 | "expected %<;%> or %<{%> after method attribute definition"); | |
11339 | return true; | |
11340 | } | |
11341 | ||
27bf414c JM |
11342 | /* Parse an objc-method-decl. |
11343 | ||
11344 | objc-method-decl: | |
11345 | ( objc-type-name ) objc-selector | |
11346 | objc-selector | |
11347 | ( objc-type-name ) objc-keyword-selector objc-optparmlist | |
11348 | objc-keyword-selector objc-optparmlist | |
783bfe5e | 11349 | gnu-attributes |
27bf414c JM |
11350 | |
11351 | objc-keyword-selector: | |
11352 | objc-keyword-decl | |
11353 | objc-keyword-selector objc-keyword-decl | |
11354 | ||
11355 | objc-keyword-decl: | |
11356 | objc-selector : ( objc-type-name ) identifier | |
11357 | objc-selector : identifier | |
11358 | : ( objc-type-name ) identifier | |
11359 | : identifier | |
11360 | ||
11361 | objc-optparmlist: | |
11362 | objc-optparms objc-optellipsis | |
11363 | ||
11364 | objc-optparms: | |
11365 | empty | |
11366 | objc-opt-parms , parameter-declaration | |
11367 | ||
11368 | objc-optellipsis: | |
11369 | empty | |
11370 | , ... | |
11371 | */ | |
11372 | ||
11373 | static tree | |
a04a722b JM |
11374 | c_parser_objc_method_decl (c_parser *parser, bool is_class_method, |
11375 | tree *attributes, tree *expr) | |
27bf414c JM |
11376 | { |
11377 | tree type = NULL_TREE; | |
11378 | tree sel; | |
11379 | tree parms = NULL_TREE; | |
dbb74365 | 11380 | bool ellipsis = false; |
f7e71da5 | 11381 | bool attr_err = false; |
dbb74365 | 11382 | |
f7e71da5 | 11383 | *attributes = NULL_TREE; |
27bf414c JM |
11384 | if (c_parser_next_token_is (parser, CPP_OPEN_PAREN)) |
11385 | { | |
32129a17 DM |
11386 | matching_parens parens; |
11387 | parens.consume_open (parser); | |
27bf414c | 11388 | type = c_parser_objc_type_name (parser); |
32129a17 | 11389 | parens.skip_until_found_close (parser); |
27bf414c JM |
11390 | } |
11391 | sel = c_parser_objc_selector (parser); | |
11392 | /* If there is no selector, or a colon follows, we have an | |
11393 | objc-keyword-selector. If there is a selector, and a colon does | |
11394 | not follow, that selector ends the objc-method-decl. */ | |
11395 | if (!sel || c_parser_next_token_is (parser, CPP_COLON)) | |
11396 | { | |
11397 | tree tsel = sel; | |
11398 | tree list = NULL_TREE; | |
27bf414c JM |
11399 | while (true) |
11400 | { | |
11401 | tree atype = NULL_TREE, id, keyworddecl; | |
f7e71da5 | 11402 | tree param_attr = NULL_TREE; |
27bf414c JM |
11403 | if (!c_parser_require (parser, CPP_COLON, "expected %<:%>")) |
11404 | break; | |
11405 | if (c_parser_next_token_is (parser, CPP_OPEN_PAREN)) | |
11406 | { | |
11407 | c_parser_consume_token (parser); | |
11408 | atype = c_parser_objc_type_name (parser); | |
11409 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, | |
11410 | "expected %<)%>"); | |
11411 | } | |
f7e71da5 IS |
11412 | /* New ObjC allows attributes on method parameters. */ |
11413 | if (c_parser_next_token_is_keyword (parser, RID_ATTRIBUTE)) | |
783bfe5e | 11414 | param_attr = c_parser_gnu_attributes (parser); |
27bf414c JM |
11415 | if (c_parser_next_token_is_not (parser, CPP_NAME)) |
11416 | { | |
11417 | c_parser_error (parser, "expected identifier"); | |
11418 | return error_mark_node; | |
11419 | } | |
11420 | id = c_parser_peek_token (parser)->value; | |
11421 | c_parser_consume_token (parser); | |
f7e71da5 | 11422 | keyworddecl = objc_build_keyword_decl (tsel, atype, id, param_attr); |
27bf414c JM |
11423 | list = chainon (list, keyworddecl); |
11424 | tsel = c_parser_objc_selector (parser); | |
11425 | if (!tsel && c_parser_next_token_is_not (parser, CPP_COLON)) | |
11426 | break; | |
11427 | } | |
f7e71da5 IS |
11428 | |
11429 | attr_err |= c_parser_objc_maybe_method_attributes (parser, attributes) ; | |
11430 | ||
27bf414c JM |
11431 | /* Parse the optional parameter list. Optional Objective-C |
11432 | method parameters follow the C syntax, and may include '...' | |
11433 | to denote a variable number of arguments. */ | |
11434 | parms = make_node (TREE_LIST); | |
27bf414c JM |
11435 | while (c_parser_next_token_is (parser, CPP_COMMA)) |
11436 | { | |
11437 | struct c_parm *parm; | |
11438 | c_parser_consume_token (parser); | |
11439 | if (c_parser_next_token_is (parser, CPP_ELLIPSIS)) | |
11440 | { | |
11441 | ellipsis = true; | |
11442 | c_parser_consume_token (parser); | |
f7e71da5 IS |
11443 | attr_err |= c_parser_objc_maybe_method_attributes |
11444 | (parser, attributes) ; | |
27bf414c JM |
11445 | break; |
11446 | } | |
4e03c3a7 | 11447 | parm = c_parser_parameter_declaration (parser, NULL_TREE, false); |
27bf414c JM |
11448 | if (parm == NULL) |
11449 | break; | |
11450 | parms = chainon (parms, | |
a04a722b | 11451 | build_tree_list (NULL_TREE, grokparm (parm, expr))); |
27bf414c | 11452 | } |
27bf414c JM |
11453 | sel = list; |
11454 | } | |
f7e71da5 IS |
11455 | else |
11456 | attr_err |= c_parser_objc_maybe_method_attributes (parser, attributes) ; | |
11457 | ||
11458 | if (sel == NULL) | |
11459 | { | |
11460 | c_parser_error (parser, "objective-c method declaration is expected"); | |
11461 | return error_mark_node; | |
11462 | } | |
11463 | ||
11464 | if (attr_err) | |
11465 | return error_mark_node; | |
11466 | ||
249a82c4 | 11467 | return objc_build_method_signature (is_class_method, type, sel, parms, ellipsis); |
27bf414c JM |
11468 | } |
11469 | ||
11470 | /* Parse an objc-type-name. | |
11471 | ||
11472 | objc-type-name: | |
11473 | objc-type-qualifiers[opt] type-name | |
11474 | objc-type-qualifiers[opt] | |
11475 | ||
11476 | objc-type-qualifiers: | |
11477 | objc-type-qualifier | |
11478 | objc-type-qualifiers objc-type-qualifier | |
11479 | ||
11480 | objc-type-qualifier: one of | |
11481 | in out inout bycopy byref oneway | |
11482 | */ | |
11483 | ||
11484 | static tree | |
11485 | c_parser_objc_type_name (c_parser *parser) | |
11486 | { | |
11487 | tree quals = NULL_TREE; | |
d75d71e0 | 11488 | struct c_type_name *type_name = NULL; |
27bf414c JM |
11489 | tree type = NULL_TREE; |
11490 | while (true) | |
11491 | { | |
11492 | c_token *token = c_parser_peek_token (parser); | |
11493 | if (token->type == CPP_KEYWORD | |
11494 | && (token->keyword == RID_IN | |
11495 | || token->keyword == RID_OUT | |
11496 | || token->keyword == RID_INOUT | |
11497 | || token->keyword == RID_BYCOPY | |
11498 | || token->keyword == RID_BYREF | |
11499 | || token->keyword == RID_ONEWAY)) | |
11500 | { | |
71fc71d8 | 11501 | quals = chainon (build_tree_list (NULL_TREE, token->value), quals); |
27bf414c JM |
11502 | c_parser_consume_token (parser); |
11503 | } | |
11504 | else | |
11505 | break; | |
11506 | } | |
29ce73cb | 11507 | if (c_parser_next_tokens_start_typename (parser, cla_prefer_type)) |
d75d71e0 ILT |
11508 | type_name = c_parser_type_name (parser); |
11509 | if (type_name) | |
928c19bb | 11510 | type = groktypename (type_name, NULL, NULL); |
046608a3 NP |
11511 | |
11512 | /* If the type is unknown, and error has already been produced and | |
11513 | we need to recover from the error. In that case, use NULL_TREE | |
11514 | for the type, as if no type had been specified; this will use the | |
11515 | default type ('id') which is good for error recovery. */ | |
11516 | if (type == error_mark_node) | |
11517 | type = NULL_TREE; | |
11518 | ||
27bf414c JM |
11519 | return build_tree_list (quals, type); |
11520 | } | |
11521 | ||
11522 | /* Parse objc-protocol-refs. | |
11523 | ||
11524 | objc-protocol-refs: | |
11525 | < identifier-list > | |
11526 | */ | |
11527 | ||
11528 | static tree | |
11529 | c_parser_objc_protocol_refs (c_parser *parser) | |
11530 | { | |
11531 | tree list = NULL_TREE; | |
11532 | gcc_assert (c_parser_next_token_is (parser, CPP_LESS)); | |
11533 | c_parser_consume_token (parser); | |
11534 | /* Any identifiers, including those declared as type names, are OK | |
11535 | here. */ | |
11536 | while (true) | |
11537 | { | |
11538 | tree id; | |
11539 | if (c_parser_next_token_is_not (parser, CPP_NAME)) | |
11540 | { | |
11541 | c_parser_error (parser, "expected identifier"); | |
11542 | break; | |
11543 | } | |
11544 | id = c_parser_peek_token (parser)->value; | |
11545 | list = chainon (list, build_tree_list (NULL_TREE, id)); | |
11546 | c_parser_consume_token (parser); | |
11547 | if (c_parser_next_token_is (parser, CPP_COMMA)) | |
11548 | c_parser_consume_token (parser); | |
11549 | else | |
11550 | break; | |
11551 | } | |
11552 | c_parser_require (parser, CPP_GREATER, "expected %<>%>"); | |
11553 | return list; | |
11554 | } | |
11555 | ||
437c2322 | 11556 | /* Parse an objc-try-catch-finally-statement. |
27bf414c | 11557 | |
437c2322 | 11558 | objc-try-catch-finally-statement: |
27bf414c JM |
11559 | @try compound-statement objc-catch-list[opt] |
11560 | @try compound-statement objc-catch-list[opt] @finally compound-statement | |
11561 | ||
11562 | objc-catch-list: | |
437c2322 NP |
11563 | @catch ( objc-catch-parameter-declaration ) compound-statement |
11564 | objc-catch-list @catch ( objc-catch-parameter-declaration ) compound-statement | |
11565 | ||
11566 | objc-catch-parameter-declaration: | |
11567 | parameter-declaration | |
11568 | '...' | |
11569 | ||
11570 | where '...' is to be interpreted literally, that is, it means CPP_ELLIPSIS. | |
11571 | ||
11572 | PS: This function is identical to cp_parser_objc_try_catch_finally_statement | |
11573 | for C++. Keep them in sync. */ | |
27bf414c JM |
11574 | |
11575 | static void | |
437c2322 | 11576 | c_parser_objc_try_catch_finally_statement (c_parser *parser) |
27bf414c | 11577 | { |
437c2322 | 11578 | location_t location; |
27bf414c | 11579 | tree stmt; |
437c2322 | 11580 | |
49b91f05 | 11581 | gcc_assert (c_parser_next_token_is_keyword (parser, RID_AT_TRY)); |
27bf414c | 11582 | c_parser_consume_token (parser); |
437c2322 | 11583 | location = c_parser_peek_token (parser)->location; |
46270f14 | 11584 | objc_maybe_warn_exceptions (location); |
27bf414c | 11585 | stmt = c_parser_compound_statement (parser); |
437c2322 NP |
11586 | objc_begin_try_stmt (location, stmt); |
11587 | ||
49b91f05 | 11588 | while (c_parser_next_token_is_keyword (parser, RID_AT_CATCH)) |
27bf414c JM |
11589 | { |
11590 | struct c_parm *parm; | |
437c2322 NP |
11591 | tree parameter_declaration = error_mark_node; |
11592 | bool seen_open_paren = false; | |
11593 | ||
27bf414c | 11594 | c_parser_consume_token (parser); |
32129a17 DM |
11595 | matching_parens parens; |
11596 | if (!parens.require_open (parser)) | |
437c2322 NP |
11597 | seen_open_paren = true; |
11598 | if (c_parser_next_token_is (parser, CPP_ELLIPSIS)) | |
27bf414c | 11599 | { |
437c2322 NP |
11600 | /* We have "@catch (...)" (where the '...' are literally |
11601 | what is in the code). Skip the '...'. | |
11602 | parameter_declaration is set to NULL_TREE, and | |
11603 | objc_being_catch_clauses() knows that that means | |
11604 | '...'. */ | |
11605 | c_parser_consume_token (parser); | |
11606 | parameter_declaration = NULL_TREE; | |
27bf414c | 11607 | } |
437c2322 NP |
11608 | else |
11609 | { | |
11610 | /* We have "@catch (NSException *exception)" or something | |
11611 | like that. Parse the parameter declaration. */ | |
4e03c3a7 | 11612 | parm = c_parser_parameter_declaration (parser, NULL_TREE, false); |
437c2322 NP |
11613 | if (parm == NULL) |
11614 | parameter_declaration = error_mark_node; | |
11615 | else | |
a04a722b | 11616 | parameter_declaration = grokparm (parm, NULL); |
437c2322 NP |
11617 | } |
11618 | if (seen_open_paren) | |
32129a17 | 11619 | parens.require_close (parser); |
437c2322 NP |
11620 | else |
11621 | { | |
11622 | /* If there was no open parenthesis, we are recovering from | |
11623 | an error, and we are trying to figure out what mistake | |
11624 | the user has made. */ | |
11625 | ||
11626 | /* If there is an immediate closing parenthesis, the user | |
11627 | probably forgot the opening one (ie, they typed "@catch | |
11628 | NSException *e)". Parse the closing parenthesis and keep | |
11629 | going. */ | |
11630 | if (c_parser_next_token_is (parser, CPP_CLOSE_PAREN)) | |
11631 | c_parser_consume_token (parser); | |
11632 | ||
11633 | /* If these is no immediate closing parenthesis, the user | |
11634 | probably doesn't know that parenthesis are required at | |
11635 | all (ie, they typed "@catch NSException *e"). So, just | |
11636 | forget about the closing parenthesis and keep going. */ | |
11637 | } | |
11638 | objc_begin_catch_clause (parameter_declaration); | |
27bf414c JM |
11639 | if (c_parser_require (parser, CPP_OPEN_BRACE, "expected %<{%>")) |
11640 | c_parser_compound_statement_nostart (parser); | |
11641 | objc_finish_catch_clause (); | |
11642 | } | |
11643 | if (c_parser_next_token_is_keyword (parser, RID_AT_FINALLY)) | |
11644 | { | |
27bf414c | 11645 | c_parser_consume_token (parser); |
437c2322 NP |
11646 | location = c_parser_peek_token (parser)->location; |
11647 | stmt = c_parser_compound_statement (parser); | |
11648 | objc_build_finally_clause (location, stmt); | |
27bf414c JM |
11649 | } |
11650 | objc_finish_try_stmt (); | |
11651 | } | |
11652 | ||
11653 | /* Parse an objc-synchronized-statement. | |
11654 | ||
11655 | objc-synchronized-statement: | |
11656 | @synchronized ( expression ) compound-statement | |
11657 | */ | |
11658 | ||
11659 | static void | |
11660 | c_parser_objc_synchronized_statement (c_parser *parser) | |
11661 | { | |
11662 | location_t loc; | |
11663 | tree expr, stmt; | |
11664 | gcc_assert (c_parser_next_token_is_keyword (parser, RID_AT_SYNCHRONIZED)); | |
11665 | c_parser_consume_token (parser); | |
11666 | loc = c_parser_peek_token (parser)->location; | |
46270f14 | 11667 | objc_maybe_warn_exceptions (loc); |
32129a17 DM |
11668 | matching_parens parens; |
11669 | if (parens.require_open (parser)) | |
27bf414c | 11670 | { |
267bac10 JM |
11671 | struct c_expr ce = c_parser_expression (parser); |
11672 | ce = convert_lvalue_to_rvalue (loc, ce, false, false); | |
11673 | expr = ce.value; | |
928c19bb | 11674 | expr = c_fully_fold (expr, false, NULL); |
32129a17 | 11675 | parens.skip_until_found_close (parser); |
27bf414c JM |
11676 | } |
11677 | else | |
11678 | expr = error_mark_node; | |
11679 | stmt = c_parser_compound_statement (parser); | |
11680 | objc_build_synchronized (loc, expr, stmt); | |
11681 | } | |
11682 | ||
11683 | /* Parse an objc-selector; return NULL_TREE without an error if the | |
11684 | next token is not an objc-selector. | |
11685 | ||
11686 | objc-selector: | |
11687 | identifier | |
11688 | one of | |
11689 | enum struct union if else while do for switch case default | |
11690 | break continue return goto asm sizeof typeof __alignof | |
11691 | unsigned long const short volatile signed restrict _Complex | |
11692 | in out inout bycopy byref oneway int char float double void _Bool | |
267bac10 | 11693 | _Atomic |
27bf414c JM |
11694 | |
11695 | ??? Why this selection of keywords but not, for example, storage | |
11696 | class specifiers? */ | |
11697 | ||
11698 | static tree | |
11699 | c_parser_objc_selector (c_parser *parser) | |
11700 | { | |
11701 | c_token *token = c_parser_peek_token (parser); | |
11702 | tree value = token->value; | |
11703 | if (token->type == CPP_NAME) | |
11704 | { | |
11705 | c_parser_consume_token (parser); | |
11706 | return value; | |
11707 | } | |
11708 | if (token->type != CPP_KEYWORD) | |
11709 | return NULL_TREE; | |
11710 | switch (token->keyword) | |
11711 | { | |
11712 | case RID_ENUM: | |
11713 | case RID_STRUCT: | |
11714 | case RID_UNION: | |
11715 | case RID_IF: | |
11716 | case RID_ELSE: | |
11717 | case RID_WHILE: | |
11718 | case RID_DO: | |
11719 | case RID_FOR: | |
11720 | case RID_SWITCH: | |
11721 | case RID_CASE: | |
11722 | case RID_DEFAULT: | |
11723 | case RID_BREAK: | |
11724 | case RID_CONTINUE: | |
11725 | case RID_RETURN: | |
11726 | case RID_GOTO: | |
11727 | case RID_ASM: | |
11728 | case RID_SIZEOF: | |
11729 | case RID_TYPEOF: | |
11730 | case RID_ALIGNOF: | |
11731 | case RID_UNSIGNED: | |
11732 | case RID_LONG: | |
11733 | case RID_CONST: | |
11734 | case RID_SHORT: | |
11735 | case RID_VOLATILE: | |
11736 | case RID_SIGNED: | |
11737 | case RID_RESTRICT: | |
11738 | case RID_COMPLEX: | |
11739 | case RID_IN: | |
11740 | case RID_OUT: | |
11741 | case RID_INOUT: | |
11742 | case RID_BYCOPY: | |
11743 | case RID_BYREF: | |
11744 | case RID_ONEWAY: | |
11745 | case RID_INT: | |
11746 | case RID_CHAR: | |
11747 | case RID_FLOAT: | |
11748 | case RID_DOUBLE: | |
c65699ef | 11749 | CASE_RID_FLOATN_NX: |
27bf414c JM |
11750 | case RID_VOID: |
11751 | case RID_BOOL: | |
267bac10 | 11752 | case RID_ATOMIC: |
38b7bc7f | 11753 | case RID_AUTO_TYPE: |
78a7c317 DD |
11754 | case RID_INT_N_0: |
11755 | case RID_INT_N_1: | |
11756 | case RID_INT_N_2: | |
11757 | case RID_INT_N_3: | |
27bf414c JM |
11758 | c_parser_consume_token (parser); |
11759 | return value; | |
11760 | default: | |
11761 | return NULL_TREE; | |
11762 | } | |
11763 | } | |
11764 | ||
11765 | /* Parse an objc-selector-arg. | |
11766 | ||
11767 | objc-selector-arg: | |
11768 | objc-selector | |
11769 | objc-keywordname-list | |
11770 | ||
11771 | objc-keywordname-list: | |
11772 | objc-keywordname | |
11773 | objc-keywordname-list objc-keywordname | |
11774 | ||
11775 | objc-keywordname: | |
11776 | objc-selector : | |
11777 | : | |
11778 | */ | |
11779 | ||
11780 | static tree | |
11781 | c_parser_objc_selector_arg (c_parser *parser) | |
11782 | { | |
11783 | tree sel = c_parser_objc_selector (parser); | |
11784 | tree list = NULL_TREE; | |
11785 | if (sel && c_parser_next_token_is_not (parser, CPP_COLON)) | |
11786 | return sel; | |
11787 | while (true) | |
11788 | { | |
11789 | if (!c_parser_require (parser, CPP_COLON, "expected %<:%>")) | |
11790 | return list; | |
11791 | list = chainon (list, build_tree_list (sel, NULL_TREE)); | |
11792 | sel = c_parser_objc_selector (parser); | |
11793 | if (!sel && c_parser_next_token_is_not (parser, CPP_COLON)) | |
11794 | break; | |
11795 | } | |
11796 | return list; | |
11797 | } | |
11798 | ||
11799 | /* Parse an objc-receiver. | |
11800 | ||
11801 | objc-receiver: | |
11802 | expression | |
11803 | class-name | |
11804 | type-name | |
11805 | */ | |
11806 | ||
11807 | static tree | |
11808 | c_parser_objc_receiver (c_parser *parser) | |
11809 | { | |
267bac10 JM |
11810 | location_t loc = c_parser_peek_token (parser)->location; |
11811 | ||
27bf414c JM |
11812 | if (c_parser_peek_token (parser)->type == CPP_NAME |
11813 | && (c_parser_peek_token (parser)->id_kind == C_ID_TYPENAME | |
11814 | || c_parser_peek_token (parser)->id_kind == C_ID_CLASSNAME)) | |
11815 | { | |
11816 | tree id = c_parser_peek_token (parser)->value; | |
11817 | c_parser_consume_token (parser); | |
11818 | return objc_get_class_reference (id); | |
11819 | } | |
267bac10 JM |
11820 | struct c_expr ce = c_parser_expression (parser); |
11821 | ce = convert_lvalue_to_rvalue (loc, ce, false, false); | |
11822 | return c_fully_fold (ce.value, false, NULL); | |
27bf414c JM |
11823 | } |
11824 | ||
11825 | /* Parse objc-message-args. | |
11826 | ||
11827 | objc-message-args: | |
11828 | objc-selector | |
11829 | objc-keywordarg-list | |
11830 | ||
11831 | objc-keywordarg-list: | |
11832 | objc-keywordarg | |
11833 | objc-keywordarg-list objc-keywordarg | |
11834 | ||
11835 | objc-keywordarg: | |
11836 | objc-selector : objc-keywordexpr | |
11837 | : objc-keywordexpr | |
11838 | */ | |
11839 | ||
11840 | static tree | |
11841 | c_parser_objc_message_args (c_parser *parser) | |
11842 | { | |
11843 | tree sel = c_parser_objc_selector (parser); | |
11844 | tree list = NULL_TREE; | |
11845 | if (sel && c_parser_next_token_is_not (parser, CPP_COLON)) | |
11846 | return sel; | |
11847 | while (true) | |
11848 | { | |
11849 | tree keywordexpr; | |
11850 | if (!c_parser_require (parser, CPP_COLON, "expected %<:%>")) | |
0a7d7dea | 11851 | return error_mark_node; |
27bf414c JM |
11852 | keywordexpr = c_parser_objc_keywordexpr (parser); |
11853 | list = chainon (list, build_tree_list (sel, keywordexpr)); | |
11854 | sel = c_parser_objc_selector (parser); | |
11855 | if (!sel && c_parser_next_token_is_not (parser, CPP_COLON)) | |
11856 | break; | |
11857 | } | |
11858 | return list; | |
11859 | } | |
11860 | ||
11861 | /* Parse an objc-keywordexpr. | |
11862 | ||
11863 | objc-keywordexpr: | |
11864 | nonempty-expr-list | |
11865 | */ | |
11866 | ||
11867 | static tree | |
11868 | c_parser_objc_keywordexpr (c_parser *parser) | |
11869 | { | |
bbbbb16a | 11870 | tree ret; |
9771b263 | 11871 | vec<tree, va_gc> *expr_list = c_parser_expr_list (parser, true, true, |
81e5eca8 | 11872 | NULL, NULL, NULL, NULL); |
9771b263 | 11873 | if (vec_safe_length (expr_list) == 1) |
27bf414c JM |
11874 | { |
11875 | /* Just return the expression, remove a level of | |
11876 | indirection. */ | |
9771b263 | 11877 | ret = (*expr_list)[0]; |
27bf414c JM |
11878 | } |
11879 | else | |
11880 | { | |
11881 | /* We have a comma expression, we will collapse later. */ | |
c166b898 | 11882 | ret = build_tree_list_vec (expr_list); |
27bf414c | 11883 | } |
c166b898 | 11884 | release_tree_vector (expr_list); |
bbbbb16a | 11885 | return ret; |
27bf414c JM |
11886 | } |
11887 | ||
c165dca7 IS |
11888 | /* A check, needed in several places, that ObjC interface, implementation or |
11889 | method definitions are not prefixed by incorrect items. */ | |
11890 | static bool | |
11891 | c_parser_objc_diagnose_bad_element_prefix (c_parser *parser, | |
11892 | struct c_declspecs *specs) | |
11893 | { | |
9e5b2115 PB |
11894 | if (!specs->declspecs_seen_p || specs->non_sc_seen_p |
11895 | || specs->typespec_kind != ctsk_none) | |
c165dca7 IS |
11896 | { |
11897 | c_parser_error (parser, | |
11898 | "no type or storage class may be specified here,"); | |
11899 | c_parser_skip_to_end_of_block_or_statement (parser); | |
11900 | return true; | |
11901 | } | |
11902 | return false; | |
11903 | } | |
668ea4b1 | 11904 | |
f614132b | 11905 | /* Parse an Objective-C @property declaration. The syntax is: |
668ea4b1 | 11906 | |
f614132b NP |
11907 | objc-property-declaration: |
11908 | '@property' objc-property-attributes[opt] struct-declaration ; | |
668ea4b1 | 11909 | |
f614132b NP |
11910 | objc-property-attributes: |
11911 | '(' objc-property-attribute-list ')' | |
11912 | ||
11913 | objc-property-attribute-list: | |
11914 | objc-property-attribute | |
11915 | objc-property-attribute-list, objc-property-attribute | |
11916 | ||
11917 | objc-property-attribute | |
11918 | 'getter' = identifier | |
11919 | 'setter' = identifier | |
11920 | 'readonly' | |
11921 | 'readwrite' | |
11922 | 'assign' | |
11923 | 'retain' | |
11924 | 'copy' | |
11925 | 'nonatomic' | |
11926 | ||
11927 | For example: | |
11928 | @property NSString *name; | |
11929 | @property (readonly) id object; | |
11930 | @property (retain, nonatomic, getter=getTheName) id name; | |
11931 | @property int a, b, c; | |
11932 | ||
11933 | PS: This function is identical to cp_parser_objc_at_propery_declaration | |
200290f2 | 11934 | for C++. Keep them in sync. */ |
668ea4b1 | 11935 | static void |
f614132b | 11936 | c_parser_objc_at_property_declaration (c_parser *parser) |
668ea4b1 | 11937 | { |
200290f2 NP |
11938 | /* The following variables hold the attributes of the properties as |
11939 | parsed. They are 'false' or 'NULL_TREE' if the attribute was not | |
11940 | seen. When we see an attribute, we set them to 'true' (if they | |
11941 | are boolean properties) or to the identifier (if they have an | |
11942 | argument, ie, for getter and setter). Note that here we only | |
11943 | parse the list of attributes, check the syntax and accumulate the | |
11944 | attributes that we find. objc_add_property_declaration() will | |
11945 | then process the information. */ | |
11946 | bool property_assign = false; | |
11947 | bool property_copy = false; | |
11948 | tree property_getter_ident = NULL_TREE; | |
11949 | bool property_nonatomic = false; | |
11950 | bool property_readonly = false; | |
11951 | bool property_readwrite = false; | |
11952 | bool property_retain = false; | |
11953 | tree property_setter_ident = NULL_TREE; | |
200290f2 NP |
11954 | |
11955 | /* 'properties' is the list of properties that we read. Usually a | |
11956 | single one, but maybe more (eg, in "@property int a, b, c;" there | |
11957 | are three). */ | |
f614132b NP |
11958 | tree properties; |
11959 | location_t loc; | |
200290f2 | 11960 | |
f614132b NP |
11961 | loc = c_parser_peek_token (parser)->location; |
11962 | gcc_assert (c_parser_next_token_is_keyword (parser, RID_AT_PROPERTY)); | |
668ea4b1 | 11963 | |
f614132b | 11964 | c_parser_consume_token (parser); /* Eat '@property'. */ |
668ea4b1 | 11965 | |
f614132b NP |
11966 | /* Parse the optional attribute list... */ |
11967 | if (c_parser_next_token_is (parser, CPP_OPEN_PAREN)) | |
668ea4b1 | 11968 | { |
32129a17 DM |
11969 | matching_parens parens; |
11970 | ||
f614132b | 11971 | /* Eat the '(' */ |
32129a17 DM |
11972 | parens.consume_open (parser); |
11973 | ||
f614132b NP |
11974 | /* Property attribute keywords are valid now. */ |
11975 | parser->objc_property_attr_context = true; | |
11976 | ||
11977 | while (true) | |
668ea4b1 | 11978 | { |
f614132b NP |
11979 | bool syntax_error = false; |
11980 | c_token *token = c_parser_peek_token (parser); | |
11981 | enum rid keyword; | |
11982 | ||
11983 | if (token->type != CPP_KEYWORD) | |
11984 | { | |
11985 | if (token->type == CPP_CLOSE_PAREN) | |
11986 | c_parser_error (parser, "expected identifier"); | |
11987 | else | |
11988 | { | |
11989 | c_parser_consume_token (parser); | |
11990 | c_parser_error (parser, "unknown property attribute"); | |
11991 | } | |
11992 | break; | |
11993 | } | |
11994 | keyword = token->keyword; | |
200290f2 | 11995 | c_parser_consume_token (parser); |
f614132b NP |
11996 | switch (keyword) |
11997 | { | |
200290f2 | 11998 | case RID_ASSIGN: property_assign = true; break; |
200290f2 NP |
11999 | case RID_COPY: property_copy = true; break; |
12000 | case RID_NONATOMIC: property_nonatomic = true; break; | |
12001 | case RID_READONLY: property_readonly = true; break; | |
12002 | case RID_READWRITE: property_readwrite = true; break; | |
12003 | case RID_RETAIN: property_retain = true; break; | |
12004 | ||
f614132b NP |
12005 | case RID_GETTER: |
12006 | case RID_SETTER: | |
f614132b NP |
12007 | if (c_parser_next_token_is_not (parser, CPP_EQ)) |
12008 | { | |
d853ee42 NP |
12009 | if (keyword == RID_GETTER) |
12010 | c_parser_error (parser, | |
12011 | "missing %<=%> (after %<getter%> attribute)"); | |
12012 | else | |
12013 | c_parser_error (parser, | |
12014 | "missing %<=%> (after %<setter%> attribute)"); | |
f614132b NP |
12015 | syntax_error = true; |
12016 | break; | |
12017 | } | |
12018 | c_parser_consume_token (parser); /* eat the = */ | |
12019 | if (c_parser_next_token_is_not (parser, CPP_NAME)) | |
12020 | { | |
12021 | c_parser_error (parser, "expected identifier"); | |
12022 | syntax_error = true; | |
12023 | break; | |
12024 | } | |
f614132b NP |
12025 | if (keyword == RID_SETTER) |
12026 | { | |
200290f2 NP |
12027 | if (property_setter_ident != NULL_TREE) |
12028 | c_parser_error (parser, "the %<setter%> attribute may only be specified once"); | |
12029 | else | |
12030 | property_setter_ident = c_parser_peek_token (parser)->value; | |
f614132b | 12031 | c_parser_consume_token (parser); |
200290f2 NP |
12032 | if (c_parser_next_token_is_not (parser, CPP_COLON)) |
12033 | c_parser_error (parser, "setter name must terminate with %<:%>"); | |
12034 | else | |
12035 | c_parser_consume_token (parser); | |
f614132b | 12036 | } |
46a88c12 | 12037 | else |
f614132b | 12038 | { |
200290f2 NP |
12039 | if (property_getter_ident != NULL_TREE) |
12040 | c_parser_error (parser, "the %<getter%> attribute may only be specified once"); | |
12041 | else | |
12042 | property_getter_ident = c_parser_peek_token (parser)->value; | |
f614132b | 12043 | c_parser_consume_token (parser); |
f614132b | 12044 | } |
200290f2 NP |
12045 | break; |
12046 | default: | |
12047 | c_parser_error (parser, "unknown property attribute"); | |
f614132b NP |
12048 | syntax_error = true; |
12049 | break; | |
12050 | } | |
12051 | ||
12052 | if (syntax_error) | |
668ea4b1 | 12053 | break; |
f614132b NP |
12054 | |
12055 | if (c_parser_next_token_is (parser, CPP_COMMA)) | |
668ea4b1 | 12056 | c_parser_consume_token (parser); |
f614132b | 12057 | else |
668ea4b1 IS |
12058 | break; |
12059 | } | |
f614132b | 12060 | parser->objc_property_attr_context = false; |
32129a17 | 12061 | parens.skip_until_found_close (parser); |
f614132b NP |
12062 | } |
12063 | /* ... and the property declaration(s). */ | |
12064 | properties = c_parser_struct_declaration (parser); | |
668ea4b1 | 12065 | |
f614132b NP |
12066 | if (properties == error_mark_node) |
12067 | { | |
12068 | c_parser_skip_until_found (parser, CPP_SEMICOLON, NULL); | |
12069 | parser->error = false; | |
12070 | return; | |
12071 | } | |
668ea4b1 | 12072 | |
f614132b NP |
12073 | if (properties == NULL_TREE) |
12074 | c_parser_error (parser, "expected identifier"); | |
12075 | else | |
12076 | { | |
12077 | /* Comma-separated properties are chained together in | |
12078 | reverse order; add them one by one. */ | |
12079 | properties = nreverse (properties); | |
12080 | ||
12081 | for (; properties; properties = TREE_CHAIN (properties)) | |
200290f2 NP |
12082 | objc_add_property_declaration (loc, copy_node (properties), |
12083 | property_readonly, property_readwrite, | |
12084 | property_assign, property_retain, | |
12085 | property_copy, property_nonatomic, | |
46a88c12 | 12086 | property_getter_ident, property_setter_ident); |
f614132b | 12087 | } |
668ea4b1 IS |
12088 | |
12089 | c_parser_skip_until_found (parser, CPP_SEMICOLON, "expected %<;%>"); | |
f614132b | 12090 | parser->error = false; |
668ea4b1 IS |
12091 | } |
12092 | ||
da57d1b9 NP |
12093 | /* Parse an Objective-C @synthesize declaration. The syntax is: |
12094 | ||
12095 | objc-synthesize-declaration: | |
12096 | @synthesize objc-synthesize-identifier-list ; | |
12097 | ||
12098 | objc-synthesize-identifier-list: | |
12099 | objc-synthesize-identifier | |
12100 | objc-synthesize-identifier-list, objc-synthesize-identifier | |
12101 | ||
12102 | objc-synthesize-identifier | |
12103 | identifier | |
12104 | identifier = identifier | |
12105 | ||
12106 | For example: | |
12107 | @synthesize MyProperty; | |
12108 | @synthesize OneProperty, AnotherProperty=MyIvar, YetAnotherProperty; | |
12109 | ||
12110 | PS: This function is identical to cp_parser_objc_at_synthesize_declaration | |
12111 | for C++. Keep them in sync. | |
12112 | */ | |
12113 | static void | |
12114 | c_parser_objc_at_synthesize_declaration (c_parser *parser) | |
12115 | { | |
12116 | tree list = NULL_TREE; | |
12117 | location_t loc; | |
12118 | gcc_assert (c_parser_next_token_is_keyword (parser, RID_AT_SYNTHESIZE)); | |
12119 | loc = c_parser_peek_token (parser)->location; | |
12120 | ||
12121 | c_parser_consume_token (parser); | |
12122 | while (true) | |
12123 | { | |
12124 | tree property, ivar; | |
12125 | if (c_parser_next_token_is_not (parser, CPP_NAME)) | |
12126 | { | |
12127 | c_parser_error (parser, "expected identifier"); | |
12128 | c_parser_skip_until_found (parser, CPP_SEMICOLON, NULL); | |
12129 | /* Once we find the semicolon, we can resume normal parsing. | |
12130 | We have to reset parser->error manually because | |
12131 | c_parser_skip_until_found() won't reset it for us if the | |
12132 | next token is precisely a semicolon. */ | |
12133 | parser->error = false; | |
12134 | return; | |
12135 | } | |
12136 | property = c_parser_peek_token (parser)->value; | |
12137 | c_parser_consume_token (parser); | |
12138 | if (c_parser_next_token_is (parser, CPP_EQ)) | |
12139 | { | |
12140 | c_parser_consume_token (parser); | |
12141 | if (c_parser_next_token_is_not (parser, CPP_NAME)) | |
12142 | { | |
12143 | c_parser_error (parser, "expected identifier"); | |
12144 | c_parser_skip_until_found (parser, CPP_SEMICOLON, NULL); | |
12145 | parser->error = false; | |
12146 | return; | |
12147 | } | |
12148 | ivar = c_parser_peek_token (parser)->value; | |
12149 | c_parser_consume_token (parser); | |
12150 | } | |
12151 | else | |
12152 | ivar = NULL_TREE; | |
12153 | list = chainon (list, build_tree_list (ivar, property)); | |
12154 | if (c_parser_next_token_is (parser, CPP_COMMA)) | |
12155 | c_parser_consume_token (parser); | |
12156 | else | |
12157 | break; | |
12158 | } | |
12159 | c_parser_skip_until_found (parser, CPP_SEMICOLON, "expected %<;%>"); | |
12160 | objc_add_synthesize_declaration (loc, list); | |
12161 | } | |
12162 | ||
12163 | /* Parse an Objective-C @dynamic declaration. The syntax is: | |
12164 | ||
12165 | objc-dynamic-declaration: | |
12166 | @dynamic identifier-list ; | |
12167 | ||
12168 | For example: | |
12169 | @dynamic MyProperty; | |
12170 | @dynamic MyProperty, AnotherProperty; | |
12171 | ||
12172 | PS: This function is identical to cp_parser_objc_at_dynamic_declaration | |
12173 | for C++. Keep them in sync. | |
12174 | */ | |
12175 | static void | |
12176 | c_parser_objc_at_dynamic_declaration (c_parser *parser) | |
12177 | { | |
12178 | tree list = NULL_TREE; | |
12179 | location_t loc; | |
12180 | gcc_assert (c_parser_next_token_is_keyword (parser, RID_AT_DYNAMIC)); | |
12181 | loc = c_parser_peek_token (parser)->location; | |
12182 | ||
12183 | c_parser_consume_token (parser); | |
12184 | while (true) | |
12185 | { | |
12186 | tree property; | |
12187 | if (c_parser_next_token_is_not (parser, CPP_NAME)) | |
12188 | { | |
12189 | c_parser_error (parser, "expected identifier"); | |
12190 | c_parser_skip_until_found (parser, CPP_SEMICOLON, NULL); | |
12191 | parser->error = false; | |
12192 | return; | |
12193 | } | |
12194 | property = c_parser_peek_token (parser)->value; | |
12195 | list = chainon (list, build_tree_list (NULL_TREE, property)); | |
12196 | c_parser_consume_token (parser); | |
12197 | if (c_parser_next_token_is (parser, CPP_COMMA)) | |
12198 | c_parser_consume_token (parser); | |
12199 | else | |
12200 | break; | |
12201 | } | |
12202 | c_parser_skip_until_found (parser, CPP_SEMICOLON, "expected %<;%>"); | |
12203 | objc_add_dynamic_declaration (loc, list); | |
12204 | } | |
12205 | ||
27bf414c | 12206 | \f |
170a8bd6 EB |
12207 | /* Parse a pragma GCC ivdep. */ |
12208 | ||
12209 | static bool | |
12210 | c_parse_pragma_ivdep (c_parser *parser) | |
12211 | { | |
12212 | c_parser_consume_pragma (parser); | |
12213 | c_parser_skip_to_pragma_eol (parser); | |
12214 | return true; | |
12215 | } | |
12216 | ||
12217 | /* Parse a pragma GCC unroll. */ | |
12218 | ||
12219 | static unsigned short | |
12220 | c_parser_pragma_unroll (c_parser *parser) | |
12221 | { | |
12222 | unsigned short unroll; | |
12223 | c_parser_consume_pragma (parser); | |
12224 | location_t location = c_parser_peek_token (parser)->location; | |
12225 | tree expr = c_parser_expr_no_commas (parser, NULL).value; | |
12226 | mark_exp_read (expr); | |
12227 | expr = c_fully_fold (expr, false, NULL); | |
12228 | HOST_WIDE_INT lunroll = 0; | |
12229 | if (!INTEGRAL_TYPE_P (TREE_TYPE (expr)) | |
12230 | || TREE_CODE (expr) != INTEGER_CST | |
12231 | || (lunroll = tree_to_shwi (expr)) < 0 | |
12232 | || lunroll >= USHRT_MAX) | |
12233 | { | |
12234 | error_at (location, "%<#pragma GCC unroll%> requires an" | |
12235 | " assignment-expression that evaluates to a non-negative" | |
12236 | " integral constant less than %u", USHRT_MAX); | |
12237 | unroll = 0; | |
12238 | } | |
12239 | else | |
12240 | { | |
12241 | unroll = (unsigned short)lunroll; | |
12242 | if (unroll == 0) | |
12243 | unroll = 1; | |
12244 | } | |
12245 | ||
12246 | c_parser_skip_to_pragma_eol (parser); | |
12247 | return unroll; | |
12248 | } | |
12249 | ||
953ff289 DN |
12250 | /* Handle pragmas. Some OpenMP pragmas are associated with, and therefore |
12251 | should be considered, statements. ALLOW_STMT is true if we're within | |
12252 | the context of a function and such pragmas are to be allowed. Returns | |
12253 | true if we actually parsed such a pragma. */ | |
27bf414c | 12254 | |
bc4071dd | 12255 | static bool |
dda1bf61 | 12256 | c_parser_pragma (c_parser *parser, enum pragma_context context, bool *if_p) |
bc4071dd RH |
12257 | { |
12258 | unsigned int id; | |
a71dbc63 | 12259 | const char *construct = NULL; |
bc4071dd RH |
12260 | |
12261 | id = c_parser_peek_token (parser)->pragma_kind; | |
12262 | gcc_assert (id != PRAGMA_NONE); | |
12263 | ||
12264 | switch (id) | |
12265 | { | |
6e232ba4 JN |
12266 | case PRAGMA_OACC_DECLARE: |
12267 | c_parser_oacc_declare (parser); | |
12268 | return false; | |
12269 | ||
41dbbb37 | 12270 | case PRAGMA_OACC_ENTER_DATA: |
c5af52eb CP |
12271 | if (context != pragma_compound) |
12272 | { | |
a71dbc63 JJ |
12273 | construct = "acc enter data"; |
12274 | in_compound: | |
c5af52eb | 12275 | if (context == pragma_stmt) |
a71dbc63 JJ |
12276 | { |
12277 | error_at (c_parser_peek_token (parser)->location, | |
12278 | "%<#pragma %s%> may only be used in compound " | |
12279 | "statements", construct); | |
12280 | c_parser_skip_until_found (parser, CPP_PRAGMA_EOL, NULL); | |
12281 | return false; | |
12282 | } | |
c5af52eb CP |
12283 | goto bad_stmt; |
12284 | } | |
41dbbb37 TS |
12285 | c_parser_oacc_enter_exit_data (parser, true); |
12286 | return false; | |
12287 | ||
12288 | case PRAGMA_OACC_EXIT_DATA: | |
c5af52eb CP |
12289 | if (context != pragma_compound) |
12290 | { | |
a71dbc63 JJ |
12291 | construct = "acc exit data"; |
12292 | goto in_compound; | |
c5af52eb | 12293 | } |
41dbbb37 TS |
12294 | c_parser_oacc_enter_exit_data (parser, false); |
12295 | return false; | |
12296 | ||
3a40d81d | 12297 | case PRAGMA_OACC_ROUTINE: |
ae9281fc TS |
12298 | if (context != pragma_external) |
12299 | { | |
12300 | error_at (c_parser_peek_token (parser)->location, | |
12301 | "%<#pragma acc routine%> must be at file scope"); | |
12302 | c_parser_skip_until_found (parser, CPP_PRAGMA_EOL, NULL); | |
12303 | return false; | |
12304 | } | |
3a40d81d NS |
12305 | c_parser_oacc_routine (parser, context); |
12306 | return false; | |
12307 | ||
41dbbb37 TS |
12308 | case PRAGMA_OACC_UPDATE: |
12309 | if (context != pragma_compound) | |
12310 | { | |
a71dbc63 JJ |
12311 | construct = "acc update"; |
12312 | goto in_compound; | |
41dbbb37 TS |
12313 | } |
12314 | c_parser_oacc_update (parser); | |
12315 | return false; | |
12316 | ||
953ff289 DN |
12317 | case PRAGMA_OMP_BARRIER: |
12318 | if (context != pragma_compound) | |
12319 | { | |
a71dbc63 JJ |
12320 | construct = "omp barrier"; |
12321 | goto in_compound; | |
953ff289 DN |
12322 | } |
12323 | c_parser_omp_barrier (parser); | |
12324 | return false; | |
12325 | ||
28567c40 JJ |
12326 | case PRAGMA_OMP_DEPOBJ: |
12327 | if (context != pragma_compound) | |
12328 | { | |
12329 | construct = "omp depobj"; | |
12330 | goto in_compound; | |
12331 | } | |
12332 | c_parser_omp_depobj (parser); | |
12333 | return false; | |
12334 | ||
953ff289 DN |
12335 | case PRAGMA_OMP_FLUSH: |
12336 | if (context != pragma_compound) | |
12337 | { | |
a71dbc63 JJ |
12338 | construct = "omp flush"; |
12339 | goto in_compound; | |
953ff289 DN |
12340 | } |
12341 | c_parser_omp_flush (parser); | |
12342 | return false; | |
12343 | ||
a68ab351 JJ |
12344 | case PRAGMA_OMP_TASKWAIT: |
12345 | if (context != pragma_compound) | |
12346 | { | |
a71dbc63 JJ |
12347 | construct = "omp taskwait"; |
12348 | goto in_compound; | |
a68ab351 JJ |
12349 | } |
12350 | c_parser_omp_taskwait (parser); | |
12351 | return false; | |
12352 | ||
20906c66 JJ |
12353 | case PRAGMA_OMP_TASKYIELD: |
12354 | if (context != pragma_compound) | |
12355 | { | |
a71dbc63 JJ |
12356 | construct = "omp taskyield"; |
12357 | goto in_compound; | |
20906c66 JJ |
12358 | } |
12359 | c_parser_omp_taskyield (parser); | |
12360 | return false; | |
12361 | ||
acf0174b JJ |
12362 | case PRAGMA_OMP_CANCEL: |
12363 | if (context != pragma_compound) | |
12364 | { | |
a71dbc63 JJ |
12365 | construct = "omp cancel"; |
12366 | goto in_compound; | |
acf0174b JJ |
12367 | } |
12368 | c_parser_omp_cancel (parser); | |
12369 | return false; | |
12370 | ||
12371 | case PRAGMA_OMP_CANCELLATION_POINT: | |
54d19c3b | 12372 | c_parser_omp_cancellation_point (parser, context); |
acf0174b JJ |
12373 | return false; |
12374 | ||
953ff289 DN |
12375 | case PRAGMA_OMP_THREADPRIVATE: |
12376 | c_parser_omp_threadprivate (parser); | |
12377 | return false; | |
12378 | ||
acf0174b | 12379 | case PRAGMA_OMP_TARGET: |
dda1bf61 | 12380 | return c_parser_omp_target (parser, context, if_p); |
acf0174b JJ |
12381 | |
12382 | case PRAGMA_OMP_END_DECLARE_TARGET: | |
12383 | c_parser_omp_end_declare_target (parser); | |
12384 | return false; | |
12385 | ||
bf38f7e9 JJ |
12386 | case PRAGMA_OMP_SCAN: |
12387 | error_at (c_parser_peek_token (parser)->location, | |
12388 | "%<#pragma omp scan%> may only be used in " | |
12389 | "a loop construct with %<inscan%> %<reduction%> clause"); | |
12390 | c_parser_skip_until_found (parser, CPP_PRAGMA_EOL, NULL); | |
12391 | return false; | |
12392 | ||
953ff289 | 12393 | case PRAGMA_OMP_SECTION: |
3ba09659 AH |
12394 | error_at (c_parser_peek_token (parser)->location, |
12395 | "%<#pragma omp section%> may only be used in " | |
12396 | "%<#pragma omp sections%> construct"); | |
953ff289 DN |
12397 | c_parser_skip_until_found (parser, CPP_PRAGMA_EOL, NULL); |
12398 | return false; | |
12399 | ||
f9d8d994 | 12400 | case PRAGMA_OMP_DECLARE: |
acf0174b JJ |
12401 | c_parser_omp_declare (parser, context); |
12402 | return false; | |
d9a6bd32 | 12403 | |
28567c40 JJ |
12404 | case PRAGMA_OMP_REQUIRES: |
12405 | c_parser_omp_requires (parser); | |
12406 | return false; | |
12407 | ||
d9a6bd32 | 12408 | case PRAGMA_OMP_ORDERED: |
dda1bf61 | 12409 | return c_parser_omp_ordered (parser, context, if_p); |
d9a6bd32 | 12410 | |
8170608b | 12411 | case PRAGMA_IVDEP: |
170a8bd6 EB |
12412 | { |
12413 | const bool ivdep = c_parse_pragma_ivdep (parser); | |
12414 | unsigned short unroll; | |
12415 | if (c_parser_peek_token (parser)->pragma_kind == PRAGMA_UNROLL) | |
12416 | unroll = c_parser_pragma_unroll (parser); | |
12417 | else | |
12418 | unroll = 0; | |
12419 | if (!c_parser_next_token_is_keyword (parser, RID_FOR) | |
12420 | && !c_parser_next_token_is_keyword (parser, RID_WHILE) | |
12421 | && !c_parser_next_token_is_keyword (parser, RID_DO)) | |
12422 | { | |
12423 | c_parser_error (parser, "for, while or do statement expected"); | |
12424 | return false; | |
12425 | } | |
12426 | if (c_parser_next_token_is_keyword (parser, RID_FOR)) | |
12427 | c_parser_for_statement (parser, ivdep, unroll, if_p); | |
12428 | else if (c_parser_next_token_is_keyword (parser, RID_WHILE)) | |
12429 | c_parser_while_statement (parser, ivdep, unroll, if_p); | |
12430 | else | |
12431 | c_parser_do_statement (parser, ivdep, unroll); | |
12432 | } | |
12433 | return false; | |
12434 | ||
12435 | case PRAGMA_UNROLL: | |
12436 | { | |
12437 | unsigned short unroll = c_parser_pragma_unroll (parser); | |
12438 | bool ivdep; | |
12439 | if (c_parser_peek_token (parser)->pragma_kind == PRAGMA_IVDEP) | |
12440 | ivdep = c_parse_pragma_ivdep (parser); | |
12441 | else | |
12442 | ivdep = false; | |
12443 | if (!c_parser_next_token_is_keyword (parser, RID_FOR) | |
12444 | && !c_parser_next_token_is_keyword (parser, RID_WHILE) | |
12445 | && !c_parser_next_token_is_keyword (parser, RID_DO)) | |
12446 | { | |
12447 | c_parser_error (parser, "for, while or do statement expected"); | |
12448 | return false; | |
12449 | } | |
12450 | if (c_parser_next_token_is_keyword (parser, RID_FOR)) | |
12451 | c_parser_for_statement (parser, ivdep, unroll, if_p); | |
12452 | else if (c_parser_next_token_is_keyword (parser, RID_WHILE)) | |
12453 | c_parser_while_statement (parser, ivdep, unroll, if_p); | |
12454 | else | |
12455 | c_parser_do_statement (parser, ivdep, unroll); | |
12456 | } | |
8170608b | 12457 | return false; |
acf0174b | 12458 | |
bc4071dd RH |
12459 | case PRAGMA_GCC_PCH_PREPROCESS: |
12460 | c_parser_error (parser, "%<#pragma GCC pch_preprocess%> must be first"); | |
12461 | c_parser_skip_until_found (parser, CPP_PRAGMA_EOL, NULL); | |
12462 | return false; | |
12463 | ||
c5af52eb CP |
12464 | case PRAGMA_OACC_WAIT: |
12465 | if (context != pragma_compound) | |
12466 | { | |
a71dbc63 JJ |
12467 | construct = "acc wait"; |
12468 | goto in_compound; | |
c5af52eb CP |
12469 | } |
12470 | /* FALL THROUGH. */ | |
12471 | ||
bc4071dd | 12472 | default: |
953ff289 DN |
12473 | if (id < PRAGMA_FIRST_EXTERNAL) |
12474 | { | |
acf0174b | 12475 | if (context != pragma_stmt && context != pragma_compound) |
953ff289 DN |
12476 | { |
12477 | bad_stmt: | |
12478 | c_parser_error (parser, "expected declaration specifiers"); | |
12479 | c_parser_skip_until_found (parser, CPP_PRAGMA_EOL, NULL); | |
12480 | return false; | |
12481 | } | |
dda1bf61 | 12482 | c_parser_omp_construct (parser, if_p); |
953ff289 DN |
12483 | return true; |
12484 | } | |
bc4071dd RH |
12485 | break; |
12486 | } | |
12487 | ||
12488 | c_parser_consume_pragma (parser); | |
12489 | c_invoke_pragma_handler (id); | |
27bf414c | 12490 | |
b8698a0f | 12491 | /* Skip to EOL, but suppress any error message. Those will have been |
bc4071dd RH |
12492 | generated by the handler routine through calling error, as opposed |
12493 | to calling c_parser_error. */ | |
12494 | parser->error = true; | |
12495 | c_parser_skip_to_pragma_eol (parser); | |
12496 | ||
12497 | return false; | |
12498 | } | |
12499 | ||
12500 | /* The interface the pragma parsers have to the lexer. */ | |
12501 | ||
12502 | enum cpp_ttype | |
c4914de6 | 12503 | pragma_lex (tree *value, location_t *loc) |
bc4071dd RH |
12504 | { |
12505 | c_token *tok = c_parser_peek_token (the_parser); | |
12506 | enum cpp_ttype ret = tok->type; | |
12507 | ||
12508 | *value = tok->value; | |
c4914de6 MLI |
12509 | if (loc) |
12510 | *loc = tok->location; | |
12511 | ||
bc4071dd RH |
12512 | if (ret == CPP_PRAGMA_EOL || ret == CPP_EOF) |
12513 | ret = CPP_EOF; | |
471c5330 JM |
12514 | else if (ret == CPP_STRING) |
12515 | *value = c_parser_string_literal (the_parser, false, false).value; | |
bc4071dd RH |
12516 | else |
12517 | { | |
12518 | if (ret == CPP_KEYWORD) | |
12519 | ret = CPP_NAME; | |
12520 | c_parser_consume_token (the_parser); | |
12521 | } | |
12522 | ||
12523 | return ret; | |
12524 | } | |
12525 | ||
12526 | static void | |
12527 | c_parser_pragma_pch_preprocess (c_parser *parser) | |
12528 | { | |
12529 | tree name = NULL; | |
12530 | ||
471c5330 | 12531 | parser->lex_joined_string = true; |
bc4071dd RH |
12532 | c_parser_consume_pragma (parser); |
12533 | if (c_parser_next_token_is (parser, CPP_STRING)) | |
12534 | { | |
12535 | name = c_parser_peek_token (parser)->value; | |
12536 | c_parser_consume_token (parser); | |
12537 | } | |
12538 | else | |
12539 | c_parser_error (parser, "expected string literal"); | |
12540 | c_parser_skip_to_pragma_eol (parser); | |
471c5330 | 12541 | parser->lex_joined_string = false; |
bc4071dd RH |
12542 | |
12543 | if (name) | |
12544 | c_common_pch_pragma (parse_in, TREE_STRING_POINTER (name)); | |
12545 | } | |
953ff289 | 12546 | \f |
41dbbb37 | 12547 | /* OpenACC and OpenMP parsing routines. */ |
953ff289 DN |
12548 | |
12549 | /* Returns name of the next clause. | |
12550 | If the clause is not recognized PRAGMA_OMP_CLAUSE_NONE is returned and | |
12551 | the token is not consumed. Otherwise appropriate pragma_omp_clause is | |
12552 | returned and the token is consumed. */ | |
12553 | ||
12554 | static pragma_omp_clause | |
12555 | c_parser_omp_clause_name (c_parser *parser) | |
12556 | { | |
12557 | pragma_omp_clause result = PRAGMA_OMP_CLAUSE_NONE; | |
12558 | ||
41dbbb37 TS |
12559 | if (c_parser_next_token_is_keyword (parser, RID_AUTO)) |
12560 | result = PRAGMA_OACC_CLAUSE_AUTO; | |
12561 | else if (c_parser_next_token_is_keyword (parser, RID_IF)) | |
953ff289 DN |
12562 | result = PRAGMA_OMP_CLAUSE_IF; |
12563 | else if (c_parser_next_token_is_keyword (parser, RID_DEFAULT)) | |
12564 | result = PRAGMA_OMP_CLAUSE_DEFAULT; | |
acf0174b JJ |
12565 | else if (c_parser_next_token_is_keyword (parser, RID_FOR)) |
12566 | result = PRAGMA_OMP_CLAUSE_FOR; | |
953ff289 DN |
12567 | else if (c_parser_next_token_is (parser, CPP_NAME)) |
12568 | { | |
12569 | const char *p = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
12570 | ||
12571 | switch (p[0]) | |
12572 | { | |
acf0174b JJ |
12573 | case 'a': |
12574 | if (!strcmp ("aligned", p)) | |
12575 | result = PRAGMA_OMP_CLAUSE_ALIGNED; | |
41dbbb37 TS |
12576 | else if (!strcmp ("async", p)) |
12577 | result = PRAGMA_OACC_CLAUSE_ASYNC; | |
519d7496 JB |
12578 | else if (!strcmp ("attach", p)) |
12579 | result = PRAGMA_OACC_CLAUSE_ATTACH; | |
acf0174b | 12580 | break; |
554a530f JJ |
12581 | case 'b': |
12582 | if (!strcmp ("bind", p)) | |
12583 | result = PRAGMA_OMP_CLAUSE_BIND; | |
12584 | break; | |
953ff289 | 12585 | case 'c': |
a68ab351 JJ |
12586 | if (!strcmp ("collapse", p)) |
12587 | result = PRAGMA_OMP_CLAUSE_COLLAPSE; | |
41dbbb37 TS |
12588 | else if (!strcmp ("copy", p)) |
12589 | result = PRAGMA_OACC_CLAUSE_COPY; | |
a68ab351 | 12590 | else if (!strcmp ("copyin", p)) |
953ff289 | 12591 | result = PRAGMA_OMP_CLAUSE_COPYIN; |
41dbbb37 TS |
12592 | else if (!strcmp ("copyout", p)) |
12593 | result = PRAGMA_OACC_CLAUSE_COPYOUT; | |
953ff289 DN |
12594 | else if (!strcmp ("copyprivate", p)) |
12595 | result = PRAGMA_OMP_CLAUSE_COPYPRIVATE; | |
41dbbb37 TS |
12596 | else if (!strcmp ("create", p)) |
12597 | result = PRAGMA_OACC_CLAUSE_CREATE; | |
953ff289 | 12598 | break; |
acf0174b | 12599 | case 'd': |
d9a6bd32 JJ |
12600 | if (!strcmp ("defaultmap", p)) |
12601 | result = PRAGMA_OMP_CLAUSE_DEFAULTMAP; | |
12602 | else if (!strcmp ("delete", p)) | |
41dbbb37 TS |
12603 | result = PRAGMA_OACC_CLAUSE_DELETE; |
12604 | else if (!strcmp ("depend", p)) | |
acf0174b | 12605 | result = PRAGMA_OMP_CLAUSE_DEPEND; |
519d7496 JB |
12606 | else if (!strcmp ("detach", p)) |
12607 | result = PRAGMA_OACC_CLAUSE_DETACH; | |
acf0174b JJ |
12608 | else if (!strcmp ("device", p)) |
12609 | result = PRAGMA_OMP_CLAUSE_DEVICE; | |
41dbbb37 TS |
12610 | else if (!strcmp ("deviceptr", p)) |
12611 | result = PRAGMA_OACC_CLAUSE_DEVICEPTR; | |
6e232ba4 JN |
12612 | else if (!strcmp ("device_resident", p)) |
12613 | result = PRAGMA_OACC_CLAUSE_DEVICE_RESIDENT; | |
77eb117f JJ |
12614 | else if (!strcmp ("device_type", p)) |
12615 | result = PRAGMA_OMP_CLAUSE_DEVICE_TYPE; | |
acf0174b JJ |
12616 | else if (!strcmp ("dist_schedule", p)) |
12617 | result = PRAGMA_OMP_CLAUSE_DIST_SCHEDULE; | |
12618 | break; | |
953ff289 | 12619 | case 'f': |
20906c66 JJ |
12620 | if (!strcmp ("final", p)) |
12621 | result = PRAGMA_OMP_CLAUSE_FINAL; | |
829c6349 CLT |
12622 | else if (!strcmp ("finalize", p)) |
12623 | result = PRAGMA_OACC_CLAUSE_FINALIZE; | |
20906c66 | 12624 | else if (!strcmp ("firstprivate", p)) |
953ff289 | 12625 | result = PRAGMA_OMP_CLAUSE_FIRSTPRIVATE; |
acf0174b JJ |
12626 | else if (!strcmp ("from", p)) |
12627 | result = PRAGMA_OMP_CLAUSE_FROM; | |
12628 | break; | |
41dbbb37 TS |
12629 | case 'g': |
12630 | if (!strcmp ("gang", p)) | |
12631 | result = PRAGMA_OACC_CLAUSE_GANG; | |
d9a6bd32 JJ |
12632 | else if (!strcmp ("grainsize", p)) |
12633 | result = PRAGMA_OMP_CLAUSE_GRAINSIZE; | |
41dbbb37 TS |
12634 | break; |
12635 | case 'h': | |
d9a6bd32 JJ |
12636 | if (!strcmp ("hint", p)) |
12637 | result = PRAGMA_OMP_CLAUSE_HINT; | |
12638 | else if (!strcmp ("host", p)) | |
41dbbb37 TS |
12639 | result = PRAGMA_OACC_CLAUSE_HOST; |
12640 | break; | |
acf0174b | 12641 | case 'i': |
829c6349 CLT |
12642 | if (!strcmp ("if_present", p)) |
12643 | result = PRAGMA_OACC_CLAUSE_IF_PRESENT; | |
28567c40 JJ |
12644 | else if (!strcmp ("in_reduction", p)) |
12645 | result = PRAGMA_OMP_CLAUSE_IN_REDUCTION; | |
829c6349 | 12646 | else if (!strcmp ("inbranch", p)) |
acf0174b | 12647 | result = PRAGMA_OMP_CLAUSE_INBRANCH; |
7a5e4956 CP |
12648 | else if (!strcmp ("independent", p)) |
12649 | result = PRAGMA_OACC_CLAUSE_INDEPENDENT; | |
d9a6bd32 JJ |
12650 | else if (!strcmp ("is_device_ptr", p)) |
12651 | result = PRAGMA_OMP_CLAUSE_IS_DEVICE_PTR; | |
953ff289 DN |
12652 | break; |
12653 | case 'l': | |
12654 | if (!strcmp ("lastprivate", p)) | |
12655 | result = PRAGMA_OMP_CLAUSE_LASTPRIVATE; | |
acf0174b JJ |
12656 | else if (!strcmp ("linear", p)) |
12657 | result = PRAGMA_OMP_CLAUSE_LINEAR; | |
d9a6bd32 JJ |
12658 | else if (!strcmp ("link", p)) |
12659 | result = PRAGMA_OMP_CLAUSE_LINK; | |
953ff289 | 12660 | break; |
20906c66 | 12661 | case 'm': |
acf0174b JJ |
12662 | if (!strcmp ("map", p)) |
12663 | result = PRAGMA_OMP_CLAUSE_MAP; | |
12664 | else if (!strcmp ("mergeable", p)) | |
20906c66 JJ |
12665 | result = PRAGMA_OMP_CLAUSE_MERGEABLE; |
12666 | break; | |
953ff289 | 12667 | case 'n': |
a6163563 JB |
12668 | if (!strcmp ("no_create", p)) |
12669 | result = PRAGMA_OACC_CLAUSE_NO_CREATE; | |
12670 | else if (!strcmp ("nogroup", p)) | |
d9a6bd32 | 12671 | result = PRAGMA_OMP_CLAUSE_NOGROUP; |
28567c40 JJ |
12672 | else if (!strcmp ("nontemporal", p)) |
12673 | result = PRAGMA_OMP_CLAUSE_NONTEMPORAL; | |
d9a6bd32 | 12674 | else if (!strcmp ("notinbranch", p)) |
acf0174b JJ |
12675 | result = PRAGMA_OMP_CLAUSE_NOTINBRANCH; |
12676 | else if (!strcmp ("nowait", p)) | |
953ff289 | 12677 | result = PRAGMA_OMP_CLAUSE_NOWAIT; |
41dbbb37 TS |
12678 | else if (!strcmp ("num_gangs", p)) |
12679 | result = PRAGMA_OACC_CLAUSE_NUM_GANGS; | |
d9a6bd32 JJ |
12680 | else if (!strcmp ("num_tasks", p)) |
12681 | result = PRAGMA_OMP_CLAUSE_NUM_TASKS; | |
acf0174b JJ |
12682 | else if (!strcmp ("num_teams", p)) |
12683 | result = PRAGMA_OMP_CLAUSE_NUM_TEAMS; | |
953ff289 DN |
12684 | else if (!strcmp ("num_threads", p)) |
12685 | result = PRAGMA_OMP_CLAUSE_NUM_THREADS; | |
41dbbb37 TS |
12686 | else if (!strcmp ("num_workers", p)) |
12687 | result = PRAGMA_OACC_CLAUSE_NUM_WORKERS; | |
953ff289 DN |
12688 | break; |
12689 | case 'o': | |
12690 | if (!strcmp ("ordered", p)) | |
12691 | result = PRAGMA_OMP_CLAUSE_ORDERED; | |
1fdd6f04 JJ |
12692 | else if (!strcmp ("order", p)) |
12693 | result = PRAGMA_OMP_CLAUSE_ORDER; | |
953ff289 DN |
12694 | break; |
12695 | case 'p': | |
acf0174b JJ |
12696 | if (!strcmp ("parallel", p)) |
12697 | result = PRAGMA_OMP_CLAUSE_PARALLEL; | |
41dbbb37 TS |
12698 | else if (!strcmp ("present", p)) |
12699 | result = PRAGMA_OACC_CLAUSE_PRESENT; | |
829c6349 CLT |
12700 | /* As of OpenACC 2.5, these are now aliases of the non-present_or |
12701 | clauses. */ | |
41dbbb37 TS |
12702 | else if (!strcmp ("present_or_copy", p) |
12703 | || !strcmp ("pcopy", p)) | |
829c6349 | 12704 | result = PRAGMA_OACC_CLAUSE_COPY; |
41dbbb37 TS |
12705 | else if (!strcmp ("present_or_copyin", p) |
12706 | || !strcmp ("pcopyin", p)) | |
829c6349 | 12707 | result = PRAGMA_OACC_CLAUSE_COPYIN; |
41dbbb37 TS |
12708 | else if (!strcmp ("present_or_copyout", p) |
12709 | || !strcmp ("pcopyout", p)) | |
829c6349 | 12710 | result = PRAGMA_OACC_CLAUSE_COPYOUT; |
41dbbb37 TS |
12711 | else if (!strcmp ("present_or_create", p) |
12712 | || !strcmp ("pcreate", p)) | |
829c6349 | 12713 | result = PRAGMA_OACC_CLAUSE_CREATE; |
d9a6bd32 JJ |
12714 | else if (!strcmp ("priority", p)) |
12715 | result = PRAGMA_OMP_CLAUSE_PRIORITY; | |
acf0174b | 12716 | else if (!strcmp ("private", p)) |
953ff289 | 12717 | result = PRAGMA_OMP_CLAUSE_PRIVATE; |
acf0174b JJ |
12718 | else if (!strcmp ("proc_bind", p)) |
12719 | result = PRAGMA_OMP_CLAUSE_PROC_BIND; | |
953ff289 DN |
12720 | break; |
12721 | case 'r': | |
12722 | if (!strcmp ("reduction", p)) | |
12723 | result = PRAGMA_OMP_CLAUSE_REDUCTION; | |
12724 | break; | |
12725 | case 's': | |
acf0174b JJ |
12726 | if (!strcmp ("safelen", p)) |
12727 | result = PRAGMA_OMP_CLAUSE_SAFELEN; | |
12728 | else if (!strcmp ("schedule", p)) | |
953ff289 | 12729 | result = PRAGMA_OMP_CLAUSE_SCHEDULE; |
acf0174b JJ |
12730 | else if (!strcmp ("sections", p)) |
12731 | result = PRAGMA_OMP_CLAUSE_SECTIONS; | |
829c6349 CLT |
12732 | else if (!strcmp ("self", p)) /* "self" is a synonym for "host". */ |
12733 | result = PRAGMA_OACC_CLAUSE_HOST; | |
41dbbb37 TS |
12734 | else if (!strcmp ("seq", p)) |
12735 | result = PRAGMA_OACC_CLAUSE_SEQ; | |
953ff289 DN |
12736 | else if (!strcmp ("shared", p)) |
12737 | result = PRAGMA_OMP_CLAUSE_SHARED; | |
d9a6bd32 JJ |
12738 | else if (!strcmp ("simd", p)) |
12739 | result = PRAGMA_OMP_CLAUSE_SIMD; | |
acf0174b JJ |
12740 | else if (!strcmp ("simdlen", p)) |
12741 | result = PRAGMA_OMP_CLAUSE_SIMDLEN; | |
12742 | break; | |
12743 | case 't': | |
28567c40 JJ |
12744 | if (!strcmp ("task_reduction", p)) |
12745 | result = PRAGMA_OMP_CLAUSE_TASK_REDUCTION; | |
12746 | else if (!strcmp ("taskgroup", p)) | |
acf0174b JJ |
12747 | result = PRAGMA_OMP_CLAUSE_TASKGROUP; |
12748 | else if (!strcmp ("thread_limit", p)) | |
12749 | result = PRAGMA_OMP_CLAUSE_THREAD_LIMIT; | |
d9a6bd32 JJ |
12750 | else if (!strcmp ("threads", p)) |
12751 | result = PRAGMA_OMP_CLAUSE_THREADS; | |
7a5e4956 CP |
12752 | else if (!strcmp ("tile", p)) |
12753 | result = PRAGMA_OACC_CLAUSE_TILE; | |
acf0174b JJ |
12754 | else if (!strcmp ("to", p)) |
12755 | result = PRAGMA_OMP_CLAUSE_TO; | |
953ff289 | 12756 | break; |
a68ab351 | 12757 | case 'u': |
acf0174b JJ |
12758 | if (!strcmp ("uniform", p)) |
12759 | result = PRAGMA_OMP_CLAUSE_UNIFORM; | |
12760 | else if (!strcmp ("untied", p)) | |
a68ab351 | 12761 | result = PRAGMA_OMP_CLAUSE_UNTIED; |
37d5ad46 JB |
12762 | else if (!strcmp ("use_device", p)) |
12763 | result = PRAGMA_OACC_CLAUSE_USE_DEVICE; | |
398e3feb JJ |
12764 | else if (!strcmp ("use_device_addr", p)) |
12765 | result = PRAGMA_OMP_CLAUSE_USE_DEVICE_ADDR; | |
ff7a55bf TS |
12766 | else if (!strcmp ("use_device_ptr", p)) |
12767 | result = PRAGMA_OMP_CLAUSE_USE_DEVICE_PTR; | |
a68ab351 | 12768 | break; |
41958c28 | 12769 | case 'v': |
41dbbb37 TS |
12770 | if (!strcmp ("vector", p)) |
12771 | result = PRAGMA_OACC_CLAUSE_VECTOR; | |
12772 | else if (!strcmp ("vector_length", p)) | |
12773 | result = PRAGMA_OACC_CLAUSE_VECTOR_LENGTH; | |
41958c28 | 12774 | break; |
41dbbb37 TS |
12775 | case 'w': |
12776 | if (!strcmp ("wait", p)) | |
12777 | result = PRAGMA_OACC_CLAUSE_WAIT; | |
12778 | else if (!strcmp ("worker", p)) | |
12779 | result = PRAGMA_OACC_CLAUSE_WORKER; | |
12780 | break; | |
953ff289 DN |
12781 | } |
12782 | } | |
12783 | ||
12784 | if (result != PRAGMA_OMP_CLAUSE_NONE) | |
12785 | c_parser_consume_token (parser); | |
12786 | ||
12787 | return result; | |
12788 | } | |
12789 | ||
12790 | /* Validate that a clause of the given type does not already exist. */ | |
12791 | ||
12792 | static void | |
d75d71e0 ILT |
12793 | check_no_duplicate_clause (tree clauses, enum omp_clause_code code, |
12794 | const char *name) | |
953ff289 | 12795 | { |
bb522e2e JJ |
12796 | if (tree c = omp_find_clause (clauses, code)) |
12797 | error_at (OMP_CLAUSE_LOCATION (c), "too many %qs clauses", name); | |
953ff289 DN |
12798 | } |
12799 | ||
41dbbb37 TS |
12800 | /* OpenACC 2.0 |
12801 | Parse wait clause or wait directive parameters. */ | |
12802 | ||
12803 | static tree | |
12804 | c_parser_oacc_wait_list (c_parser *parser, location_t clause_loc, tree list) | |
12805 | { | |
12806 | vec<tree, va_gc> *args; | |
12807 | tree t, args_tree; | |
12808 | ||
32129a17 DM |
12809 | matching_parens parens; |
12810 | if (!parens.require_open (parser)) | |
41dbbb37 TS |
12811 | return list; |
12812 | ||
12813 | args = c_parser_expr_list (parser, false, true, NULL, NULL, NULL, NULL); | |
41dbbb37 TS |
12814 | args_tree = build_tree_list_vec (args); |
12815 | ||
12816 | for (t = args_tree; t; t = TREE_CHAIN (t)) | |
12817 | { | |
12818 | tree targ = TREE_VALUE (t); | |
12819 | ||
12820 | if (targ != error_mark_node) | |
12821 | { | |
12822 | if (!INTEGRAL_TYPE_P (TREE_TYPE (targ))) | |
12823 | { | |
12824 | c_parser_error (parser, "expression must be integral"); | |
12825 | targ = error_mark_node; | |
12826 | } | |
12827 | else | |
12828 | { | |
12829 | tree c = build_omp_clause (clause_loc, OMP_CLAUSE_WAIT); | |
12830 | ||
12831 | OMP_CLAUSE_DECL (c) = targ; | |
12832 | OMP_CLAUSE_CHAIN (c) = list; | |
12833 | list = c; | |
12834 | } | |
12835 | } | |
12836 | } | |
12837 | ||
12838 | release_tree_vector (args); | |
32129a17 | 12839 | parens.require_close (parser); |
41dbbb37 TS |
12840 | return list; |
12841 | } | |
12842 | ||
12843 | /* OpenACC 2.0, OpenMP 2.5: | |
953ff289 DN |
12844 | variable-list: |
12845 | identifier | |
12846 | variable-list , identifier | |
12847 | ||
c2255bc4 AH |
12848 | If KIND is nonzero, create the appropriate node and install the |
12849 | decl in OMP_CLAUSE_DECL and add the node to the head of the list. | |
12850 | If KIND is nonzero, CLAUSE_LOC is the location of the clause. | |
953ff289 DN |
12851 | |
12852 | If KIND is zero, create a TREE_LIST with the decl in TREE_PURPOSE; | |
519d7496 JB |
12853 | return the list created. |
12854 | ||
12855 | The optional ALLOW_DEREF argument is true if list items can use the deref | |
12856 | (->) operator. */ | |
953ff289 DN |
12857 | |
12858 | static tree | |
c2255bc4 AH |
12859 | c_parser_omp_variable_list (c_parser *parser, |
12860 | location_t clause_loc, | |
519d7496 JB |
12861 | enum omp_clause_code kind, tree list, |
12862 | bool allow_deref = false) | |
953ff289 | 12863 | { |
28567c40 JJ |
12864 | auto_vec<c_token> tokens; |
12865 | unsigned int tokens_avail = 0; | |
59bc434a | 12866 | bool first = true; |
28567c40 | 12867 | |
59bc434a | 12868 | while (1) |
953ff289 | 12869 | { |
28567c40 JJ |
12870 | bool array_section_p = false; |
12871 | if (kind == OMP_CLAUSE_DEPEND) | |
12872 | { | |
12873 | if (c_parser_next_token_is_not (parser, CPP_NAME) | |
12874 | || c_parser_peek_token (parser)->id_kind != C_ID_ID) | |
12875 | { | |
12876 | struct c_expr expr = c_parser_expr_no_commas (parser, NULL); | |
12877 | if (expr.value != error_mark_node) | |
12878 | { | |
12879 | tree u = build_omp_clause (clause_loc, kind); | |
12880 | OMP_CLAUSE_DECL (u) = expr.value; | |
12881 | OMP_CLAUSE_CHAIN (u) = list; | |
12882 | list = u; | |
12883 | } | |
12884 | ||
12885 | if (c_parser_next_token_is_not (parser, CPP_COMMA)) | |
12886 | break; | |
12887 | ||
12888 | c_parser_consume_token (parser); | |
59bc434a | 12889 | first = false; |
28567c40 JJ |
12890 | continue; |
12891 | } | |
12892 | ||
12893 | tokens.truncate (0); | |
12894 | unsigned int nesting_depth = 0; | |
12895 | while (1) | |
12896 | { | |
12897 | c_token *token = c_parser_peek_token (parser); | |
12898 | switch (token->type) | |
12899 | { | |
12900 | case CPP_EOF: | |
12901 | case CPP_PRAGMA_EOL: | |
12902 | break; | |
12903 | case CPP_OPEN_BRACE: | |
12904 | case CPP_OPEN_PAREN: | |
12905 | case CPP_OPEN_SQUARE: | |
12906 | ++nesting_depth; | |
12907 | goto add; | |
12908 | case CPP_CLOSE_BRACE: | |
12909 | case CPP_CLOSE_PAREN: | |
12910 | case CPP_CLOSE_SQUARE: | |
12911 | if (nesting_depth-- == 0) | |
12912 | break; | |
12913 | goto add; | |
12914 | case CPP_COMMA: | |
12915 | if (nesting_depth == 0) | |
12916 | break; | |
12917 | goto add; | |
12918 | default: | |
12919 | add: | |
12920 | tokens.safe_push (*token); | |
12921 | c_parser_consume_token (parser); | |
12922 | continue; | |
12923 | } | |
12924 | break; | |
12925 | } | |
12926 | ||
12927 | /* Make sure nothing tries to read past the end of the tokens. */ | |
12928 | c_token eof_token; | |
12929 | memset (&eof_token, 0, sizeof (eof_token)); | |
12930 | eof_token.type = CPP_EOF; | |
12931 | tokens.safe_push (eof_token); | |
12932 | tokens.safe_push (eof_token); | |
12933 | ||
12934 | tokens_avail = parser->tokens_avail; | |
12935 | gcc_assert (parser->tokens == &parser->tokens_buf[0]); | |
12936 | parser->tokens = tokens.address (); | |
12937 | parser->tokens_avail = tokens.length (); | |
12938 | } | |
12939 | ||
59bc434a | 12940 | tree t = NULL_TREE; |
953ff289 | 12941 | |
59bc434a JJ |
12942 | if (c_parser_next_token_is (parser, CPP_NAME) |
12943 | && c_parser_peek_token (parser)->id_kind == C_ID_ID) | |
acf0174b | 12944 | { |
59bc434a | 12945 | t = lookup_name (c_parser_peek_token (parser)->value); |
acf0174b | 12946 | |
59bc434a JJ |
12947 | if (t == NULL_TREE) |
12948 | { | |
12949 | undeclared_variable (c_parser_peek_token (parser)->location, | |
12950 | c_parser_peek_token (parser)->value); | |
12951 | t = error_mark_node; | |
12952 | } | |
12953 | ||
12954 | c_parser_consume_token (parser); | |
12955 | } | |
12956 | else if (c_parser_next_token_is (parser, CPP_KEYWORD) | |
12957 | && (c_parser_peek_token (parser)->keyword == RID_FUNCTION_NAME | |
12958 | || (c_parser_peek_token (parser)->keyword | |
12959 | == RID_PRETTY_FUNCTION_NAME) | |
12960 | || (c_parser_peek_token (parser)->keyword | |
12961 | == RID_C99_FUNCTION_NAME))) | |
12962 | t = c_parser_predefined_identifier (parser).value; | |
12963 | else | |
12964 | { | |
12965 | if (first) | |
12966 | c_parser_error (parser, "expected identifier"); | |
12967 | break; | |
12968 | } | |
acf0174b JJ |
12969 | |
12970 | if (t == error_mark_node) | |
953ff289 DN |
12971 | ; |
12972 | else if (kind != 0) | |
12973 | { | |
acf0174b JJ |
12974 | switch (kind) |
12975 | { | |
41dbbb37 | 12976 | case OMP_CLAUSE__CACHE_: |
4b1ffdb1 TS |
12977 | /* The OpenACC cache directive explicitly only allows "array |
12978 | elements or subarrays". */ | |
41dbbb37 TS |
12979 | if (c_parser_peek_token (parser)->type != CPP_OPEN_SQUARE) |
12980 | { | |
12981 | c_parser_error (parser, "expected %<[%>"); | |
12982 | t = error_mark_node; | |
12983 | break; | |
12984 | } | |
d9a6bd32 | 12985 | /* FALLTHROUGH */ |
acf0174b JJ |
12986 | case OMP_CLAUSE_MAP: |
12987 | case OMP_CLAUSE_FROM: | |
12988 | case OMP_CLAUSE_TO: | |
519d7496 JB |
12989 | while (c_parser_next_token_is (parser, CPP_DOT) |
12990 | || (allow_deref | |
12991 | && c_parser_next_token_is (parser, CPP_DEREF))) | |
d9a6bd32 JJ |
12992 | { |
12993 | location_t op_loc = c_parser_peek_token (parser)->location; | |
519d7496 JB |
12994 | if (c_parser_next_token_is (parser, CPP_DEREF)) |
12995 | t = build_simple_mem_ref (t); | |
d9a6bd32 JJ |
12996 | c_parser_consume_token (parser); |
12997 | if (!c_parser_next_token_is (parser, CPP_NAME)) | |
12998 | { | |
12999 | c_parser_error (parser, "expected identifier"); | |
13000 | t = error_mark_node; | |
13001 | break; | |
13002 | } | |
6ffd47b7 DM |
13003 | |
13004 | c_token *comp_tok = c_parser_peek_token (parser); | |
13005 | tree ident = comp_tok->value; | |
13006 | location_t comp_loc = comp_tok->location; | |
d9a6bd32 | 13007 | c_parser_consume_token (parser); |
6ffd47b7 | 13008 | t = build_component_ref (op_loc, t, ident, comp_loc); |
d9a6bd32 JJ |
13009 | } |
13010 | /* FALLTHROUGH */ | |
acf0174b | 13011 | case OMP_CLAUSE_DEPEND: |
d9a6bd32 | 13012 | case OMP_CLAUSE_REDUCTION: |
28567c40 JJ |
13013 | case OMP_CLAUSE_IN_REDUCTION: |
13014 | case OMP_CLAUSE_TASK_REDUCTION: | |
acf0174b JJ |
13015 | while (c_parser_next_token_is (parser, CPP_OPEN_SQUARE)) |
13016 | { | |
13017 | tree low_bound = NULL_TREE, length = NULL_TREE; | |
13018 | ||
13019 | c_parser_consume_token (parser); | |
13020 | if (!c_parser_next_token_is (parser, CPP_COLON)) | |
d90c0a59 | 13021 | { |
9dc5773f JJ |
13022 | location_t expr_loc |
13023 | = c_parser_peek_token (parser)->location; | |
13024 | c_expr expr = c_parser_expression (parser); | |
13025 | expr = convert_lvalue_to_rvalue (expr_loc, expr, | |
13026 | false, true); | |
13027 | low_bound = expr.value; | |
d90c0a59 | 13028 | } |
acf0174b JJ |
13029 | if (c_parser_next_token_is (parser, CPP_CLOSE_SQUARE)) |
13030 | length = integer_one_node; | |
13031 | else | |
13032 | { | |
13033 | /* Look for `:'. */ | |
13034 | if (!c_parser_require (parser, CPP_COLON, | |
13035 | "expected %<:%>")) | |
13036 | { | |
13037 | t = error_mark_node; | |
13038 | break; | |
13039 | } | |
28567c40 | 13040 | array_section_p = true; |
acf0174b | 13041 | if (!c_parser_next_token_is (parser, CPP_CLOSE_SQUARE)) |
d90c0a59 | 13042 | { |
9dc5773f JJ |
13043 | location_t expr_loc |
13044 | = c_parser_peek_token (parser)->location; | |
13045 | c_expr expr = c_parser_expression (parser); | |
13046 | expr = convert_lvalue_to_rvalue (expr_loc, expr, | |
13047 | false, true); | |
13048 | length = expr.value; | |
d90c0a59 | 13049 | } |
acf0174b JJ |
13050 | } |
13051 | /* Look for the closing `]'. */ | |
13052 | if (!c_parser_require (parser, CPP_CLOSE_SQUARE, | |
13053 | "expected %<]%>")) | |
13054 | { | |
13055 | t = error_mark_node; | |
13056 | break; | |
13057 | } | |
41dbbb37 | 13058 | |
acf0174b JJ |
13059 | t = tree_cons (low_bound, length, t); |
13060 | } | |
28567c40 JJ |
13061 | if (kind == OMP_CLAUSE_DEPEND |
13062 | && t != error_mark_node | |
13063 | && parser->tokens_avail != 2) | |
13064 | { | |
13065 | if (array_section_p) | |
13066 | { | |
13067 | error_at (c_parser_peek_token (parser)->location, | |
13068 | "expected %<)%> or %<,%>"); | |
13069 | t = error_mark_node; | |
13070 | } | |
13071 | else | |
13072 | { | |
13073 | parser->tokens = tokens.address (); | |
13074 | parser->tokens_avail = tokens.length (); | |
13075 | ||
13076 | t = c_parser_expr_no_commas (parser, NULL).value; | |
13077 | if (t != error_mark_node && parser->tokens_avail != 2) | |
13078 | { | |
13079 | error_at (c_parser_peek_token (parser)->location, | |
13080 | "expected %<)%> or %<,%>"); | |
13081 | t = error_mark_node; | |
13082 | } | |
13083 | } | |
13084 | } | |
acf0174b JJ |
13085 | break; |
13086 | default: | |
13087 | break; | |
13088 | } | |
13089 | ||
13090 | if (t != error_mark_node) | |
13091 | { | |
13092 | tree u = build_omp_clause (clause_loc, kind); | |
13093 | OMP_CLAUSE_DECL (u) = t; | |
13094 | OMP_CLAUSE_CHAIN (u) = list; | |
13095 | list = u; | |
13096 | } | |
953ff289 DN |
13097 | } |
13098 | else | |
13099 | list = tree_cons (t, NULL_TREE, list); | |
13100 | ||
28567c40 JJ |
13101 | if (kind == OMP_CLAUSE_DEPEND) |
13102 | { | |
13103 | parser->tokens = &parser->tokens_buf[0]; | |
13104 | parser->tokens_avail = tokens_avail; | |
13105 | } | |
953ff289 DN |
13106 | if (c_parser_next_token_is_not (parser, CPP_COMMA)) |
13107 | break; | |
13108 | ||
13109 | c_parser_consume_token (parser); | |
59bc434a | 13110 | first = false; |
953ff289 DN |
13111 | } |
13112 | ||
13113 | return list; | |
13114 | } | |
13115 | ||
13116 | /* Similarly, but expect leading and trailing parenthesis. This is a very | |
519d7496 JB |
13117 | common case for OpenACC and OpenMP clauses. The optional ALLOW_DEREF |
13118 | argument is true if list items can use the deref (->) operator. */ | |
953ff289 DN |
13119 | |
13120 | static tree | |
d75d71e0 | 13121 | c_parser_omp_var_list_parens (c_parser *parser, enum omp_clause_code kind, |
519d7496 | 13122 | tree list, bool allow_deref = false) |
953ff289 | 13123 | { |
c2255bc4 AH |
13124 | /* The clauses location. */ |
13125 | location_t loc = c_parser_peek_token (parser)->location; | |
13126 | ||
32129a17 DM |
13127 | matching_parens parens; |
13128 | if (parens.require_open (parser)) | |
953ff289 | 13129 | { |
519d7496 | 13130 | list = c_parser_omp_variable_list (parser, loc, kind, list, allow_deref); |
32129a17 | 13131 | parens.skip_until_found_close (parser); |
953ff289 DN |
13132 | } |
13133 | return list; | |
13134 | } | |
13135 | ||
41dbbb37 TS |
13136 | /* OpenACC 2.0: |
13137 | copy ( variable-list ) | |
13138 | copyin ( variable-list ) | |
13139 | copyout ( variable-list ) | |
13140 | create ( variable-list ) | |
13141 | delete ( variable-list ) | |
a6163563 JB |
13142 | present ( variable-list ) |
13143 | ||
13144 | OpenACC 2.6: | |
519d7496 JB |
13145 | no_create ( variable-list ) |
13146 | attach ( variable-list ) | |
13147 | detach ( variable-list ) */ | |
41dbbb37 TS |
13148 | |
13149 | static tree | |
13150 | c_parser_oacc_data_clause (c_parser *parser, pragma_omp_clause c_kind, | |
13151 | tree list) | |
13152 | { | |
13153 | enum gomp_map_kind kind; | |
13154 | switch (c_kind) | |
13155 | { | |
519d7496 JB |
13156 | case PRAGMA_OACC_CLAUSE_ATTACH: |
13157 | kind = GOMP_MAP_ATTACH; | |
13158 | break; | |
41dbbb37 | 13159 | case PRAGMA_OACC_CLAUSE_COPY: |
829c6349 | 13160 | kind = GOMP_MAP_TOFROM; |
41dbbb37 TS |
13161 | break; |
13162 | case PRAGMA_OACC_CLAUSE_COPYIN: | |
829c6349 | 13163 | kind = GOMP_MAP_TO; |
41dbbb37 TS |
13164 | break; |
13165 | case PRAGMA_OACC_CLAUSE_COPYOUT: | |
829c6349 | 13166 | kind = GOMP_MAP_FROM; |
41dbbb37 TS |
13167 | break; |
13168 | case PRAGMA_OACC_CLAUSE_CREATE: | |
829c6349 | 13169 | kind = GOMP_MAP_ALLOC; |
41dbbb37 TS |
13170 | break; |
13171 | case PRAGMA_OACC_CLAUSE_DELETE: | |
829c6349 | 13172 | kind = GOMP_MAP_RELEASE; |
41dbbb37 | 13173 | break; |
519d7496 JB |
13174 | case PRAGMA_OACC_CLAUSE_DETACH: |
13175 | kind = GOMP_MAP_DETACH; | |
13176 | break; | |
41dbbb37 TS |
13177 | case PRAGMA_OACC_CLAUSE_DEVICE: |
13178 | kind = GOMP_MAP_FORCE_TO; | |
13179 | break; | |
6e232ba4 JN |
13180 | case PRAGMA_OACC_CLAUSE_DEVICE_RESIDENT: |
13181 | kind = GOMP_MAP_DEVICE_RESIDENT; | |
13182 | break; | |
41dbbb37 | 13183 | case PRAGMA_OACC_CLAUSE_HOST: |
41dbbb37 TS |
13184 | kind = GOMP_MAP_FORCE_FROM; |
13185 | break; | |
6e232ba4 JN |
13186 | case PRAGMA_OACC_CLAUSE_LINK: |
13187 | kind = GOMP_MAP_LINK; | |
13188 | break; | |
a6163563 JB |
13189 | case PRAGMA_OACC_CLAUSE_NO_CREATE: |
13190 | kind = GOMP_MAP_IF_PRESENT; | |
13191 | break; | |
41dbbb37 TS |
13192 | case PRAGMA_OACC_CLAUSE_PRESENT: |
13193 | kind = GOMP_MAP_FORCE_PRESENT; | |
13194 | break; | |
41dbbb37 TS |
13195 | default: |
13196 | gcc_unreachable (); | |
13197 | } | |
13198 | tree nl, c; | |
519d7496 | 13199 | nl = c_parser_omp_var_list_parens (parser, OMP_CLAUSE_MAP, list, true); |
41dbbb37 TS |
13200 | |
13201 | for (c = nl; c != list; c = OMP_CLAUSE_CHAIN (c)) | |
13202 | OMP_CLAUSE_SET_MAP_KIND (c, kind); | |
13203 | ||
13204 | return nl; | |
13205 | } | |
13206 | ||
13207 | /* OpenACC 2.0: | |
13208 | deviceptr ( variable-list ) */ | |
13209 | ||
13210 | static tree | |
13211 | c_parser_oacc_data_clause_deviceptr (c_parser *parser, tree list) | |
13212 | { | |
13213 | location_t loc = c_parser_peek_token (parser)->location; | |
13214 | tree vars, t; | |
13215 | ||
13216 | /* Can't use OMP_CLAUSE_MAP here (that is, can't use the generic | |
13217 | c_parser_oacc_data_clause), as for PRAGMA_OACC_CLAUSE_DEVICEPTR, | |
13218 | variable-list must only allow for pointer variables. */ | |
13219 | vars = c_parser_omp_var_list_parens (parser, OMP_CLAUSE_ERROR, NULL); | |
13220 | for (t = vars; t && t; t = TREE_CHAIN (t)) | |
13221 | { | |
13222 | tree v = TREE_PURPOSE (t); | |
13223 | ||
13224 | /* FIXME diagnostics: Ideally we should keep individual | |
13225 | locations for all the variables in the var list to make the | |
13226 | following errors more precise. Perhaps | |
13227 | c_parser_omp_var_list_parens() should construct a list of | |
13228 | locations to go along with the var list. */ | |
13229 | ||
ba539195 | 13230 | if (!VAR_P (v) && TREE_CODE (v) != PARM_DECL) |
41dbbb37 TS |
13231 | error_at (loc, "%qD is not a variable", v); |
13232 | else if (TREE_TYPE (v) == error_mark_node) | |
13233 | ; | |
13234 | else if (!POINTER_TYPE_P (TREE_TYPE (v))) | |
13235 | error_at (loc, "%qD is not a pointer variable", v); | |
13236 | ||
13237 | tree u = build_omp_clause (loc, OMP_CLAUSE_MAP); | |
13238 | OMP_CLAUSE_SET_MAP_KIND (u, GOMP_MAP_FORCE_DEVICEPTR); | |
13239 | OMP_CLAUSE_DECL (u) = v; | |
13240 | OMP_CLAUSE_CHAIN (u) = list; | |
13241 | list = u; | |
13242 | } | |
13243 | ||
13244 | return list; | |
13245 | } | |
13246 | ||
13247 | /* OpenACC 2.0, OpenMP 3.0: | |
a68ab351 JJ |
13248 | collapse ( constant-expression ) */ |
13249 | ||
13250 | static tree | |
13251 | c_parser_omp_clause_collapse (c_parser *parser, tree list) | |
13252 | { | |
13253 | tree c, num = error_mark_node; | |
13254 | HOST_WIDE_INT n; | |
13255 | location_t loc; | |
13256 | ||
13257 | check_no_duplicate_clause (list, OMP_CLAUSE_COLLAPSE, "collapse"); | |
02889d23 | 13258 | check_no_duplicate_clause (list, OMP_CLAUSE_TILE, "tile"); |
a68ab351 JJ |
13259 | |
13260 | loc = c_parser_peek_token (parser)->location; | |
32129a17 DM |
13261 | matching_parens parens; |
13262 | if (parens.require_open (parser)) | |
a68ab351 JJ |
13263 | { |
13264 | num = c_parser_expr_no_commas (parser, NULL).value; | |
32129a17 | 13265 | parens.skip_until_found_close (parser); |
a68ab351 JJ |
13266 | } |
13267 | if (num == error_mark_node) | |
13268 | return list; | |
acf0174b JJ |
13269 | mark_exp_read (num); |
13270 | num = c_fully_fold (num, false, NULL); | |
a68ab351 | 13271 | if (!INTEGRAL_TYPE_P (TREE_TYPE (num)) |
9541ffee | 13272 | || !tree_fits_shwi_p (num) |
9439e9a1 | 13273 | || (n = tree_to_shwi (num)) <= 0 |
a68ab351 JJ |
13274 | || (int) n != n) |
13275 | { | |
3ba09659 AH |
13276 | error_at (loc, |
13277 | "collapse argument needs positive constant integer expression"); | |
a68ab351 JJ |
13278 | return list; |
13279 | } | |
c2255bc4 | 13280 | c = build_omp_clause (loc, OMP_CLAUSE_COLLAPSE); |
a68ab351 JJ |
13281 | OMP_CLAUSE_COLLAPSE_EXPR (c) = num; |
13282 | OMP_CLAUSE_CHAIN (c) = list; | |
13283 | return c; | |
13284 | } | |
13285 | ||
953ff289 DN |
13286 | /* OpenMP 2.5: |
13287 | copyin ( variable-list ) */ | |
13288 | ||
13289 | static tree | |
13290 | c_parser_omp_clause_copyin (c_parser *parser, tree list) | |
13291 | { | |
13292 | return c_parser_omp_var_list_parens (parser, OMP_CLAUSE_COPYIN, list); | |
13293 | } | |
13294 | ||
13295 | /* OpenMP 2.5: | |
13296 | copyprivate ( variable-list ) */ | |
13297 | ||
13298 | static tree | |
13299 | c_parser_omp_clause_copyprivate (c_parser *parser, tree list) | |
13300 | { | |
13301 | return c_parser_omp_var_list_parens (parser, OMP_CLAUSE_COPYPRIVATE, list); | |
13302 | } | |
13303 | ||
13304 | /* OpenMP 2.5: | |
7fd549d2 | 13305 | default ( none | shared ) |
7a5e4956 | 13306 | |
7fd549d2 TS |
13307 | OpenACC: |
13308 | default ( none | present ) */ | |
953ff289 DN |
13309 | |
13310 | static tree | |
7a5e4956 | 13311 | c_parser_omp_clause_default (c_parser *parser, tree list, bool is_oacc) |
953ff289 DN |
13312 | { |
13313 | enum omp_clause_default_kind kind = OMP_CLAUSE_DEFAULT_UNSPECIFIED; | |
c2255bc4 | 13314 | location_t loc = c_parser_peek_token (parser)->location; |
953ff289 DN |
13315 | tree c; |
13316 | ||
32129a17 DM |
13317 | matching_parens parens; |
13318 | if (!parens.require_open (parser)) | |
953ff289 DN |
13319 | return list; |
13320 | if (c_parser_next_token_is (parser, CPP_NAME)) | |
13321 | { | |
13322 | const char *p = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
13323 | ||
13324 | switch (p[0]) | |
13325 | { | |
13326 | case 'n': | |
13327 | if (strcmp ("none", p) != 0) | |
13328 | goto invalid_kind; | |
13329 | kind = OMP_CLAUSE_DEFAULT_NONE; | |
13330 | break; | |
13331 | ||
7fd549d2 TS |
13332 | case 'p': |
13333 | if (strcmp ("present", p) != 0 || !is_oacc) | |
13334 | goto invalid_kind; | |
13335 | kind = OMP_CLAUSE_DEFAULT_PRESENT; | |
13336 | break; | |
13337 | ||
953ff289 | 13338 | case 's': |
7a5e4956 | 13339 | if (strcmp ("shared", p) != 0 || is_oacc) |
953ff289 DN |
13340 | goto invalid_kind; |
13341 | kind = OMP_CLAUSE_DEFAULT_SHARED; | |
13342 | break; | |
13343 | ||
13344 | default: | |
13345 | goto invalid_kind; | |
13346 | } | |
13347 | ||
13348 | c_parser_consume_token (parser); | |
13349 | } | |
13350 | else | |
13351 | { | |
13352 | invalid_kind: | |
7a5e4956 | 13353 | if (is_oacc) |
7fd549d2 | 13354 | c_parser_error (parser, "expected %<none%> or %<present%>"); |
7a5e4956 CP |
13355 | else |
13356 | c_parser_error (parser, "expected %<none%> or %<shared%>"); | |
953ff289 | 13357 | } |
32129a17 | 13358 | parens.skip_until_found_close (parser); |
953ff289 DN |
13359 | |
13360 | if (kind == OMP_CLAUSE_DEFAULT_UNSPECIFIED) | |
13361 | return list; | |
13362 | ||
13363 | check_no_duplicate_clause (list, OMP_CLAUSE_DEFAULT, "default"); | |
c2255bc4 | 13364 | c = build_omp_clause (loc, OMP_CLAUSE_DEFAULT); |
953ff289 DN |
13365 | OMP_CLAUSE_CHAIN (c) = list; |
13366 | OMP_CLAUSE_DEFAULT_KIND (c) = kind; | |
13367 | ||
13368 | return c; | |
13369 | } | |
13370 | ||
13371 | /* OpenMP 2.5: | |
13372 | firstprivate ( variable-list ) */ | |
13373 | ||
13374 | static tree | |
13375 | c_parser_omp_clause_firstprivate (c_parser *parser, tree list) | |
13376 | { | |
13377 | return c_parser_omp_var_list_parens (parser, OMP_CLAUSE_FIRSTPRIVATE, list); | |
13378 | } | |
13379 | ||
20906c66 JJ |
13380 | /* OpenMP 3.1: |
13381 | final ( expression ) */ | |
13382 | ||
13383 | static tree | |
13384 | c_parser_omp_clause_final (c_parser *parser, tree list) | |
13385 | { | |
13386 | location_t loc = c_parser_peek_token (parser)->location; | |
13387 | if (c_parser_next_token_is (parser, CPP_OPEN_PAREN)) | |
13388 | { | |
81a227c6 JJ |
13389 | matching_parens parens; |
13390 | tree t, c; | |
13391 | if (!parens.require_open (parser)) | |
13392 | t = error_mark_node; | |
13393 | else | |
13394 | { | |
13395 | location_t eloc = c_parser_peek_token (parser)->location; | |
13396 | c_expr expr = c_parser_expr_no_commas (parser, NULL); | |
13397 | t = convert_lvalue_to_rvalue (eloc, expr, true, true).value; | |
13398 | t = c_objc_common_truthvalue_conversion (eloc, t); | |
13399 | t = c_fully_fold (t, false, NULL); | |
13400 | parens.skip_until_found_close (parser); | |
13401 | } | |
20906c66 JJ |
13402 | |
13403 | check_no_duplicate_clause (list, OMP_CLAUSE_FINAL, "final"); | |
13404 | ||
13405 | c = build_omp_clause (loc, OMP_CLAUSE_FINAL); | |
13406 | OMP_CLAUSE_FINAL_EXPR (c) = t; | |
13407 | OMP_CLAUSE_CHAIN (c) = list; | |
13408 | list = c; | |
13409 | } | |
13410 | else | |
13411 | c_parser_error (parser, "expected %<(%>"); | |
13412 | ||
13413 | return list; | |
13414 | } | |
13415 | ||
41dbbb37 | 13416 | /* OpenACC, OpenMP 2.5: |
d9a6bd32 JJ |
13417 | if ( expression ) |
13418 | ||
13419 | OpenMP 4.5: | |
13420 | if ( directive-name-modifier : expression ) | |
13421 | ||
13422 | directive-name-modifier: | |
13423 | parallel | task | taskloop | target data | target | target update | |
28567c40 JJ |
13424 | | target enter data | target exit data |
13425 | ||
13426 | OpenMP 5.0: | |
13427 | directive-name-modifier: | |
13428 | ... | simd | cancel */ | |
953ff289 DN |
13429 | |
13430 | static tree | |
d9a6bd32 | 13431 | c_parser_omp_clause_if (c_parser *parser, tree list, bool is_omp) |
953ff289 | 13432 | { |
d9a6bd32 JJ |
13433 | location_t location = c_parser_peek_token (parser)->location; |
13434 | enum tree_code if_modifier = ERROR_MARK; | |
953ff289 | 13435 | |
32129a17 DM |
13436 | matching_parens parens; |
13437 | if (!parens.require_open (parser)) | |
d9a6bd32 | 13438 | return list; |
953ff289 | 13439 | |
d9a6bd32 JJ |
13440 | if (is_omp && c_parser_next_token_is (parser, CPP_NAME)) |
13441 | { | |
13442 | const char *p = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
13443 | int n = 2; | |
28567c40 JJ |
13444 | if (strcmp (p, "cancel") == 0) |
13445 | if_modifier = VOID_CST; | |
13446 | else if (strcmp (p, "parallel") == 0) | |
d9a6bd32 | 13447 | if_modifier = OMP_PARALLEL; |
28567c40 JJ |
13448 | else if (strcmp (p, "simd") == 0) |
13449 | if_modifier = OMP_SIMD; | |
d9a6bd32 JJ |
13450 | else if (strcmp (p, "task") == 0) |
13451 | if_modifier = OMP_TASK; | |
13452 | else if (strcmp (p, "taskloop") == 0) | |
13453 | if_modifier = OMP_TASKLOOP; | |
13454 | else if (strcmp (p, "target") == 0) | |
13455 | { | |
13456 | if_modifier = OMP_TARGET; | |
13457 | if (c_parser_peek_2nd_token (parser)->type == CPP_NAME) | |
13458 | { | |
13459 | p = IDENTIFIER_POINTER (c_parser_peek_2nd_token (parser)->value); | |
13460 | if (strcmp ("data", p) == 0) | |
13461 | if_modifier = OMP_TARGET_DATA; | |
13462 | else if (strcmp ("update", p) == 0) | |
13463 | if_modifier = OMP_TARGET_UPDATE; | |
13464 | else if (strcmp ("enter", p) == 0) | |
13465 | if_modifier = OMP_TARGET_ENTER_DATA; | |
13466 | else if (strcmp ("exit", p) == 0) | |
13467 | if_modifier = OMP_TARGET_EXIT_DATA; | |
13468 | if (if_modifier != OMP_TARGET) | |
13469 | { | |
13470 | n = 3; | |
13471 | c_parser_consume_token (parser); | |
13472 | } | |
13473 | else | |
13474 | { | |
13475 | location_t loc = c_parser_peek_2nd_token (parser)->location; | |
13476 | error_at (loc, "expected %<data%>, %<update%>, %<enter%> " | |
13477 | "or %<exit%>"); | |
13478 | if_modifier = ERROR_MARK; | |
13479 | } | |
13480 | if (if_modifier == OMP_TARGET_ENTER_DATA | |
13481 | || if_modifier == OMP_TARGET_EXIT_DATA) | |
13482 | { | |
13483 | if (c_parser_peek_2nd_token (parser)->type == CPP_NAME) | |
13484 | { | |
13485 | p = IDENTIFIER_POINTER | |
13486 | (c_parser_peek_2nd_token (parser)->value); | |
13487 | if (strcmp ("data", p) == 0) | |
13488 | n = 4; | |
13489 | } | |
13490 | if (n == 4) | |
13491 | c_parser_consume_token (parser); | |
13492 | else | |
13493 | { | |
13494 | location_t loc | |
13495 | = c_parser_peek_2nd_token (parser)->location; | |
13496 | error_at (loc, "expected %<data%>"); | |
13497 | if_modifier = ERROR_MARK; | |
13498 | } | |
13499 | } | |
13500 | } | |
13501 | } | |
13502 | if (if_modifier != ERROR_MARK) | |
13503 | { | |
13504 | if (c_parser_peek_2nd_token (parser)->type == CPP_COLON) | |
13505 | { | |
13506 | c_parser_consume_token (parser); | |
13507 | c_parser_consume_token (parser); | |
13508 | } | |
13509 | else | |
13510 | { | |
13511 | if (n > 2) | |
13512 | { | |
13513 | location_t loc = c_parser_peek_2nd_token (parser)->location; | |
13514 | error_at (loc, "expected %<:%>"); | |
13515 | } | |
13516 | if_modifier = ERROR_MARK; | |
13517 | } | |
13518 | } | |
953ff289 | 13519 | } |
953ff289 | 13520 | |
81a227c6 JJ |
13521 | location_t loc = c_parser_peek_token (parser)->location; |
13522 | c_expr expr = c_parser_expr_no_commas (parser, NULL); | |
13523 | expr = convert_lvalue_to_rvalue (loc, expr, true, true); | |
13524 | tree t = c_objc_common_truthvalue_conversion (loc, expr.value), c; | |
13525 | t = c_fully_fold (t, false, NULL); | |
32129a17 | 13526 | parens.skip_until_found_close (parser); |
d9a6bd32 JJ |
13527 | |
13528 | for (c = list; c ; c = OMP_CLAUSE_CHAIN (c)) | |
13529 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_IF) | |
13530 | { | |
13531 | if (if_modifier != ERROR_MARK | |
13532 | && OMP_CLAUSE_IF_MODIFIER (c) == if_modifier) | |
13533 | { | |
13534 | const char *p = NULL; | |
13535 | switch (if_modifier) | |
13536 | { | |
28567c40 | 13537 | case VOID_CST: p = "cancel"; break; |
d9a6bd32 | 13538 | case OMP_PARALLEL: p = "parallel"; break; |
28567c40 | 13539 | case OMP_SIMD: p = "simd"; break; |
d9a6bd32 JJ |
13540 | case OMP_TASK: p = "task"; break; |
13541 | case OMP_TASKLOOP: p = "taskloop"; break; | |
13542 | case OMP_TARGET_DATA: p = "target data"; break; | |
13543 | case OMP_TARGET: p = "target"; break; | |
13544 | case OMP_TARGET_UPDATE: p = "target update"; break; | |
bb522e2e JJ |
13545 | case OMP_TARGET_ENTER_DATA: p = "target enter data"; break; |
13546 | case OMP_TARGET_EXIT_DATA: p = "target exit data"; break; | |
d9a6bd32 JJ |
13547 | default: gcc_unreachable (); |
13548 | } | |
13549 | error_at (location, "too many %<if%> clauses with %qs modifier", | |
13550 | p); | |
13551 | return list; | |
13552 | } | |
13553 | else if (OMP_CLAUSE_IF_MODIFIER (c) == if_modifier) | |
13554 | { | |
13555 | if (!is_omp) | |
13556 | error_at (location, "too many %<if%> clauses"); | |
13557 | else | |
13558 | error_at (location, "too many %<if%> clauses without modifier"); | |
13559 | return list; | |
13560 | } | |
13561 | else if (if_modifier == ERROR_MARK | |
13562 | || OMP_CLAUSE_IF_MODIFIER (c) == ERROR_MARK) | |
13563 | { | |
13564 | error_at (location, "if any %<if%> clause has modifier, then all " | |
13565 | "%<if%> clauses have to use modifier"); | |
13566 | return list; | |
13567 | } | |
13568 | } | |
13569 | ||
13570 | c = build_omp_clause (location, OMP_CLAUSE_IF); | |
13571 | OMP_CLAUSE_IF_MODIFIER (c) = if_modifier; | |
13572 | OMP_CLAUSE_IF_EXPR (c) = t; | |
13573 | OMP_CLAUSE_CHAIN (c) = list; | |
13574 | return c; | |
953ff289 DN |
13575 | } |
13576 | ||
13577 | /* OpenMP 2.5: | |
28567c40 JJ |
13578 | lastprivate ( variable-list ) |
13579 | ||
13580 | OpenMP 5.0: | |
13581 | lastprivate ( [ lastprivate-modifier : ] variable-list ) */ | |
953ff289 DN |
13582 | |
13583 | static tree | |
13584 | c_parser_omp_clause_lastprivate (c_parser *parser, tree list) | |
13585 | { | |
28567c40 JJ |
13586 | /* The clauses location. */ |
13587 | location_t loc = c_parser_peek_token (parser)->location; | |
13588 | ||
13589 | if (c_parser_require (parser, CPP_OPEN_PAREN, "expected %<(%>")) | |
13590 | { | |
13591 | bool conditional = false; | |
13592 | if (c_parser_next_token_is (parser, CPP_NAME) | |
13593 | && c_parser_peek_2nd_token (parser)->type == CPP_COLON) | |
13594 | { | |
13595 | const char *p | |
13596 | = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
13597 | if (strcmp (p, "conditional") == 0) | |
13598 | { | |
13599 | conditional = true; | |
13600 | c_parser_consume_token (parser); | |
13601 | c_parser_consume_token (parser); | |
13602 | } | |
13603 | } | |
13604 | tree nlist = c_parser_omp_variable_list (parser, loc, | |
13605 | OMP_CLAUSE_LASTPRIVATE, list); | |
13606 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, "expected %<)%>"); | |
13607 | if (conditional) | |
13608 | for (tree c = nlist; c != list; c = OMP_CLAUSE_CHAIN (c)) | |
13609 | OMP_CLAUSE_LASTPRIVATE_CONDITIONAL (c) = 1; | |
13610 | return nlist; | |
13611 | } | |
13612 | return list; | |
953ff289 DN |
13613 | } |
13614 | ||
20906c66 JJ |
13615 | /* OpenMP 3.1: |
13616 | mergeable */ | |
13617 | ||
13618 | static tree | |
13619 | c_parser_omp_clause_mergeable (c_parser *parser ATTRIBUTE_UNUSED, tree list) | |
13620 | { | |
13621 | tree c; | |
13622 | ||
13623 | /* FIXME: Should we allow duplicates? */ | |
13624 | check_no_duplicate_clause (list, OMP_CLAUSE_MERGEABLE, "mergeable"); | |
13625 | ||
13626 | c = build_omp_clause (c_parser_peek_token (parser)->location, | |
13627 | OMP_CLAUSE_MERGEABLE); | |
13628 | OMP_CLAUSE_CHAIN (c) = list; | |
13629 | ||
13630 | return c; | |
13631 | } | |
13632 | ||
953ff289 DN |
13633 | /* OpenMP 2.5: |
13634 | nowait */ | |
13635 | ||
13636 | static tree | |
13637 | c_parser_omp_clause_nowait (c_parser *parser ATTRIBUTE_UNUSED, tree list) | |
13638 | { | |
13639 | tree c; | |
c2255bc4 | 13640 | location_t loc = c_parser_peek_token (parser)->location; |
953ff289 DN |
13641 | |
13642 | check_no_duplicate_clause (list, OMP_CLAUSE_NOWAIT, "nowait"); | |
13643 | ||
c2255bc4 | 13644 | c = build_omp_clause (loc, OMP_CLAUSE_NOWAIT); |
953ff289 DN |
13645 | OMP_CLAUSE_CHAIN (c) = list; |
13646 | return c; | |
13647 | } | |
13648 | ||
13649 | /* OpenMP 2.5: | |
13650 | num_threads ( expression ) */ | |
13651 | ||
13652 | static tree | |
13653 | c_parser_omp_clause_num_threads (c_parser *parser, tree list) | |
13654 | { | |
c2255bc4 | 13655 | location_t num_threads_loc = c_parser_peek_token (parser)->location; |
32129a17 DM |
13656 | matching_parens parens; |
13657 | if (parens.require_open (parser)) | |
953ff289 | 13658 | { |
c7412148 | 13659 | location_t expr_loc = c_parser_peek_token (parser)->location; |
81a227c6 | 13660 | c_expr expr = c_parser_expr_no_commas (parser, NULL); |
9dc5773f JJ |
13661 | expr = convert_lvalue_to_rvalue (expr_loc, expr, false, true); |
13662 | tree c, t = expr.value; | |
928c19bb | 13663 | t = c_fully_fold (t, false, NULL); |
953ff289 | 13664 | |
32129a17 | 13665 | parens.skip_until_found_close (parser); |
953ff289 DN |
13666 | |
13667 | if (!INTEGRAL_TYPE_P (TREE_TYPE (t))) | |
13668 | { | |
13669 | c_parser_error (parser, "expected integer expression"); | |
13670 | return list; | |
13671 | } | |
13672 | ||
13673 | /* Attempt to statically determine when the number isn't positive. */ | |
db3927fb | 13674 | c = fold_build2_loc (expr_loc, LE_EXPR, boolean_type_node, t, |
953ff289 | 13675 | build_int_cst (TREE_TYPE (t), 0)); |
21ba0cea | 13676 | protected_set_expr_location (c, expr_loc); |
953ff289 DN |
13677 | if (c == boolean_true_node) |
13678 | { | |
3ba09659 AH |
13679 | warning_at (expr_loc, 0, |
13680 | "%<num_threads%> value must be positive"); | |
953ff289 DN |
13681 | t = integer_one_node; |
13682 | } | |
13683 | ||
13684 | check_no_duplicate_clause (list, OMP_CLAUSE_NUM_THREADS, "num_threads"); | |
13685 | ||
c2255bc4 | 13686 | c = build_omp_clause (num_threads_loc, OMP_CLAUSE_NUM_THREADS); |
953ff289 DN |
13687 | OMP_CLAUSE_NUM_THREADS_EXPR (c) = t; |
13688 | OMP_CLAUSE_CHAIN (c) = list; | |
13689 | list = c; | |
13690 | } | |
13691 | ||
13692 | return list; | |
13693 | } | |
13694 | ||
d9a6bd32 JJ |
13695 | /* OpenMP 4.5: |
13696 | num_tasks ( expression ) */ | |
13697 | ||
13698 | static tree | |
13699 | c_parser_omp_clause_num_tasks (c_parser *parser, tree list) | |
13700 | { | |
13701 | location_t num_tasks_loc = c_parser_peek_token (parser)->location; | |
32129a17 DM |
13702 | matching_parens parens; |
13703 | if (parens.require_open (parser)) | |
d9a6bd32 JJ |
13704 | { |
13705 | location_t expr_loc = c_parser_peek_token (parser)->location; | |
81a227c6 | 13706 | c_expr expr = c_parser_expr_no_commas (parser, NULL); |
9dc5773f JJ |
13707 | expr = convert_lvalue_to_rvalue (expr_loc, expr, false, true); |
13708 | tree c, t = expr.value; | |
d9a6bd32 JJ |
13709 | t = c_fully_fold (t, false, NULL); |
13710 | ||
32129a17 | 13711 | parens.skip_until_found_close (parser); |
d9a6bd32 JJ |
13712 | |
13713 | if (!INTEGRAL_TYPE_P (TREE_TYPE (t))) | |
13714 | { | |
13715 | c_parser_error (parser, "expected integer expression"); | |
13716 | return list; | |
13717 | } | |
13718 | ||
13719 | /* Attempt to statically determine when the number isn't positive. */ | |
13720 | c = fold_build2_loc (expr_loc, LE_EXPR, boolean_type_node, t, | |
13721 | build_int_cst (TREE_TYPE (t), 0)); | |
13722 | if (CAN_HAVE_LOCATION_P (c)) | |
13723 | SET_EXPR_LOCATION (c, expr_loc); | |
13724 | if (c == boolean_true_node) | |
13725 | { | |
13726 | warning_at (expr_loc, 0, "%<num_tasks%> value must be positive"); | |
13727 | t = integer_one_node; | |
13728 | } | |
13729 | ||
13730 | check_no_duplicate_clause (list, OMP_CLAUSE_NUM_TASKS, "num_tasks"); | |
13731 | ||
13732 | c = build_omp_clause (num_tasks_loc, OMP_CLAUSE_NUM_TASKS); | |
13733 | OMP_CLAUSE_NUM_TASKS_EXPR (c) = t; | |
13734 | OMP_CLAUSE_CHAIN (c) = list; | |
13735 | list = c; | |
13736 | } | |
13737 | ||
13738 | return list; | |
13739 | } | |
13740 | ||
13741 | /* OpenMP 4.5: | |
13742 | grainsize ( expression ) */ | |
13743 | ||
13744 | static tree | |
13745 | c_parser_omp_clause_grainsize (c_parser *parser, tree list) | |
13746 | { | |
13747 | location_t grainsize_loc = c_parser_peek_token (parser)->location; | |
32129a17 DM |
13748 | matching_parens parens; |
13749 | if (parens.require_open (parser)) | |
d9a6bd32 JJ |
13750 | { |
13751 | location_t expr_loc = c_parser_peek_token (parser)->location; | |
81a227c6 | 13752 | c_expr expr = c_parser_expr_no_commas (parser, NULL); |
9dc5773f JJ |
13753 | expr = convert_lvalue_to_rvalue (expr_loc, expr, false, true); |
13754 | tree c, t = expr.value; | |
d9a6bd32 JJ |
13755 | t = c_fully_fold (t, false, NULL); |
13756 | ||
32129a17 | 13757 | parens.skip_until_found_close (parser); |
d9a6bd32 JJ |
13758 | |
13759 | if (!INTEGRAL_TYPE_P (TREE_TYPE (t))) | |
13760 | { | |
13761 | c_parser_error (parser, "expected integer expression"); | |
13762 | return list; | |
13763 | } | |
13764 | ||
13765 | /* Attempt to statically determine when the number isn't positive. */ | |
13766 | c = fold_build2_loc (expr_loc, LE_EXPR, boolean_type_node, t, | |
13767 | build_int_cst (TREE_TYPE (t), 0)); | |
13768 | if (CAN_HAVE_LOCATION_P (c)) | |
13769 | SET_EXPR_LOCATION (c, expr_loc); | |
13770 | if (c == boolean_true_node) | |
13771 | { | |
13772 | warning_at (expr_loc, 0, "%<grainsize%> value must be positive"); | |
13773 | t = integer_one_node; | |
13774 | } | |
13775 | ||
13776 | check_no_duplicate_clause (list, OMP_CLAUSE_GRAINSIZE, "grainsize"); | |
13777 | ||
13778 | c = build_omp_clause (grainsize_loc, OMP_CLAUSE_GRAINSIZE); | |
13779 | OMP_CLAUSE_GRAINSIZE_EXPR (c) = t; | |
13780 | OMP_CLAUSE_CHAIN (c) = list; | |
13781 | list = c; | |
13782 | } | |
13783 | ||
13784 | return list; | |
13785 | } | |
13786 | ||
13787 | /* OpenMP 4.5: | |
13788 | priority ( expression ) */ | |
13789 | ||
13790 | static tree | |
13791 | c_parser_omp_clause_priority (c_parser *parser, tree list) | |
13792 | { | |
13793 | location_t priority_loc = c_parser_peek_token (parser)->location; | |
32129a17 DM |
13794 | matching_parens parens; |
13795 | if (parens.require_open (parser)) | |
d9a6bd32 JJ |
13796 | { |
13797 | location_t expr_loc = c_parser_peek_token (parser)->location; | |
81a227c6 | 13798 | c_expr expr = c_parser_expr_no_commas (parser, NULL); |
9dc5773f JJ |
13799 | expr = convert_lvalue_to_rvalue (expr_loc, expr, false, true); |
13800 | tree c, t = expr.value; | |
d9a6bd32 JJ |
13801 | t = c_fully_fold (t, false, NULL); |
13802 | ||
32129a17 | 13803 | parens.skip_until_found_close (parser); |
d9a6bd32 JJ |
13804 | |
13805 | if (!INTEGRAL_TYPE_P (TREE_TYPE (t))) | |
13806 | { | |
13807 | c_parser_error (parser, "expected integer expression"); | |
13808 | return list; | |
13809 | } | |
13810 | ||
13811 | /* Attempt to statically determine when the number isn't | |
13812 | non-negative. */ | |
13813 | c = fold_build2_loc (expr_loc, LT_EXPR, boolean_type_node, t, | |
13814 | build_int_cst (TREE_TYPE (t), 0)); | |
13815 | if (CAN_HAVE_LOCATION_P (c)) | |
13816 | SET_EXPR_LOCATION (c, expr_loc); | |
13817 | if (c == boolean_true_node) | |
13818 | { | |
13819 | warning_at (expr_loc, 0, "%<priority%> value must be non-negative"); | |
13820 | t = integer_one_node; | |
13821 | } | |
13822 | ||
13823 | check_no_duplicate_clause (list, OMP_CLAUSE_PRIORITY, "priority"); | |
13824 | ||
13825 | c = build_omp_clause (priority_loc, OMP_CLAUSE_PRIORITY); | |
13826 | OMP_CLAUSE_PRIORITY_EXPR (c) = t; | |
13827 | OMP_CLAUSE_CHAIN (c) = list; | |
13828 | list = c; | |
13829 | } | |
13830 | ||
13831 | return list; | |
13832 | } | |
13833 | ||
13834 | /* OpenMP 4.5: | |
13835 | hint ( expression ) */ | |
13836 | ||
13837 | static tree | |
13838 | c_parser_omp_clause_hint (c_parser *parser, tree list) | |
13839 | { | |
13840 | location_t hint_loc = c_parser_peek_token (parser)->location; | |
32129a17 DM |
13841 | matching_parens parens; |
13842 | if (parens.require_open (parser)) | |
d9a6bd32 | 13843 | { |
9dc5773f | 13844 | location_t expr_loc = c_parser_peek_token (parser)->location; |
81a227c6 | 13845 | c_expr expr = c_parser_expr_no_commas (parser, NULL); |
9dc5773f JJ |
13846 | expr = convert_lvalue_to_rvalue (expr_loc, expr, false, true); |
13847 | tree c, t = expr.value; | |
d9a6bd32 JJ |
13848 | t = c_fully_fold (t, false, NULL); |
13849 | ||
32129a17 | 13850 | parens.skip_until_found_close (parser); |
d9a6bd32 | 13851 | |
28567c40 JJ |
13852 | if (!INTEGRAL_TYPE_P (TREE_TYPE (t)) |
13853 | || TREE_CODE (t) != INTEGER_CST) | |
d9a6bd32 | 13854 | { |
28567c40 | 13855 | c_parser_error (parser, "expected constant integer expression"); |
d9a6bd32 JJ |
13856 | return list; |
13857 | } | |
13858 | ||
13859 | check_no_duplicate_clause (list, OMP_CLAUSE_HINT, "hint"); | |
13860 | ||
13861 | c = build_omp_clause (hint_loc, OMP_CLAUSE_HINT); | |
13862 | OMP_CLAUSE_HINT_EXPR (c) = t; | |
13863 | OMP_CLAUSE_CHAIN (c) = list; | |
13864 | list = c; | |
13865 | } | |
13866 | ||
13867 | return list; | |
13868 | } | |
13869 | ||
13870 | /* OpenMP 4.5: | |
28567c40 JJ |
13871 | defaultmap ( tofrom : scalar ) |
13872 | ||
13873 | OpenMP 5.0: | |
13874 | defaultmap ( implicit-behavior [ : variable-category ] ) */ | |
d9a6bd32 JJ |
13875 | |
13876 | static tree | |
13877 | c_parser_omp_clause_defaultmap (c_parser *parser, tree list) | |
13878 | { | |
13879 | location_t loc = c_parser_peek_token (parser)->location; | |
13880 | tree c; | |
13881 | const char *p; | |
28567c40 JJ |
13882 | enum omp_clause_defaultmap_kind behavior = OMP_CLAUSE_DEFAULTMAP_DEFAULT; |
13883 | enum omp_clause_defaultmap_kind category | |
13884 | = OMP_CLAUSE_DEFAULTMAP_CATEGORY_UNSPECIFIED; | |
d9a6bd32 | 13885 | |
32129a17 DM |
13886 | matching_parens parens; |
13887 | if (!parens.require_open (parser)) | |
d9a6bd32 | 13888 | return list; |
28567c40 JJ |
13889 | if (c_parser_next_token_is_keyword (parser, RID_DEFAULT)) |
13890 | p = "default"; | |
13891 | else if (!c_parser_next_token_is (parser, CPP_NAME)) | |
13892 | { | |
13893 | invalid_behavior: | |
13894 | c_parser_error (parser, "expected %<alloc%>, %<to%>, %<from%>, " | |
13895 | "%<tofrom%>, %<firstprivate%>, %<none%> " | |
13896 | "or %<default%>"); | |
d9a6bd32 JJ |
13897 | goto out_err; |
13898 | } | |
28567c40 JJ |
13899 | else |
13900 | p = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
13901 | ||
13902 | switch (p[0]) | |
d9a6bd32 | 13903 | { |
28567c40 JJ |
13904 | case 'a': |
13905 | if (strcmp ("alloc", p) == 0) | |
13906 | behavior = OMP_CLAUSE_DEFAULTMAP_ALLOC; | |
13907 | else | |
13908 | goto invalid_behavior; | |
13909 | break; | |
13910 | ||
13911 | case 'd': | |
13912 | if (strcmp ("default", p) == 0) | |
13913 | behavior = OMP_CLAUSE_DEFAULTMAP_DEFAULT; | |
13914 | else | |
13915 | goto invalid_behavior; | |
13916 | break; | |
13917 | ||
13918 | case 'f': | |
13919 | if (strcmp ("firstprivate", p) == 0) | |
13920 | behavior = OMP_CLAUSE_DEFAULTMAP_FIRSTPRIVATE; | |
13921 | else if (strcmp ("from", p) == 0) | |
13922 | behavior = OMP_CLAUSE_DEFAULTMAP_FROM; | |
13923 | else | |
13924 | goto invalid_behavior; | |
13925 | break; | |
13926 | ||
13927 | case 'n': | |
13928 | if (strcmp ("none", p) == 0) | |
13929 | behavior = OMP_CLAUSE_DEFAULTMAP_NONE; | |
13930 | else | |
13931 | goto invalid_behavior; | |
13932 | break; | |
13933 | ||
13934 | case 't': | |
13935 | if (strcmp ("tofrom", p) == 0) | |
13936 | behavior = OMP_CLAUSE_DEFAULTMAP_TOFROM; | |
13937 | else if (strcmp ("to", p) == 0) | |
13938 | behavior = OMP_CLAUSE_DEFAULTMAP_TO; | |
13939 | else | |
13940 | goto invalid_behavior; | |
13941 | break; | |
13942 | ||
13943 | default: | |
13944 | goto invalid_behavior; | |
d9a6bd32 JJ |
13945 | } |
13946 | c_parser_consume_token (parser); | |
28567c40 JJ |
13947 | |
13948 | if (!c_parser_next_token_is (parser, CPP_CLOSE_PAREN)) | |
d9a6bd32 | 13949 | { |
28567c40 JJ |
13950 | if (!c_parser_require (parser, CPP_COLON, "expected %<:%>")) |
13951 | goto out_err; | |
13952 | if (!c_parser_next_token_is (parser, CPP_NAME)) | |
13953 | { | |
13954 | invalid_category: | |
13955 | c_parser_error (parser, "expected %<scalar%>, %<aggregate%> or " | |
13956 | "%<pointer%>"); | |
13957 | goto out_err; | |
13958 | } | |
13959 | p = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
13960 | switch (p[0]) | |
13961 | { | |
13962 | case 'a': | |
13963 | if (strcmp ("aggregate", p) == 0) | |
13964 | category = OMP_CLAUSE_DEFAULTMAP_CATEGORY_AGGREGATE; | |
13965 | else | |
13966 | goto invalid_category; | |
13967 | break; | |
13968 | ||
13969 | case 'p': | |
13970 | if (strcmp ("pointer", p) == 0) | |
13971 | category = OMP_CLAUSE_DEFAULTMAP_CATEGORY_POINTER; | |
13972 | else | |
13973 | goto invalid_category; | |
13974 | break; | |
13975 | ||
13976 | case 's': | |
13977 | if (strcmp ("scalar", p) == 0) | |
13978 | category = OMP_CLAUSE_DEFAULTMAP_CATEGORY_SCALAR; | |
13979 | else | |
13980 | goto invalid_category; | |
13981 | break; | |
13982 | ||
13983 | default: | |
13984 | goto invalid_category; | |
13985 | } | |
13986 | ||
13987 | c_parser_consume_token (parser); | |
d9a6bd32 | 13988 | } |
32129a17 | 13989 | parens.skip_until_found_close (parser); |
28567c40 JJ |
13990 | |
13991 | for (c = list; c ; c = OMP_CLAUSE_CHAIN (c)) | |
13992 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_DEFAULTMAP | |
13993 | && (category == OMP_CLAUSE_DEFAULTMAP_CATEGORY_UNSPECIFIED | |
13994 | || OMP_CLAUSE_DEFAULTMAP_CATEGORY (c) == category | |
13995 | || (OMP_CLAUSE_DEFAULTMAP_CATEGORY (c) | |
13996 | == OMP_CLAUSE_DEFAULTMAP_CATEGORY_UNSPECIFIED))) | |
13997 | { | |
13998 | enum omp_clause_defaultmap_kind cat = category; | |
13999 | location_t loc = OMP_CLAUSE_LOCATION (c); | |
14000 | if (cat == OMP_CLAUSE_DEFAULTMAP_CATEGORY_UNSPECIFIED) | |
14001 | cat = OMP_CLAUSE_DEFAULTMAP_CATEGORY (c); | |
14002 | p = NULL; | |
14003 | switch (cat) | |
14004 | { | |
14005 | case OMP_CLAUSE_DEFAULTMAP_CATEGORY_UNSPECIFIED: | |
14006 | p = NULL; | |
14007 | break; | |
14008 | case OMP_CLAUSE_DEFAULTMAP_CATEGORY_AGGREGATE: | |
14009 | p = "aggregate"; | |
14010 | break; | |
14011 | case OMP_CLAUSE_DEFAULTMAP_CATEGORY_POINTER: | |
14012 | p = "pointer"; | |
14013 | break; | |
14014 | case OMP_CLAUSE_DEFAULTMAP_CATEGORY_SCALAR: | |
14015 | p = "scalar"; | |
14016 | break; | |
14017 | default: | |
14018 | gcc_unreachable (); | |
14019 | } | |
14020 | if (p) | |
14021 | error_at (loc, "too many %<defaultmap%> clauses with %qs category", | |
14022 | p); | |
14023 | else | |
14024 | error_at (loc, "too many %<defaultmap%> clauses with unspecified " | |
14025 | "category"); | |
14026 | break; | |
14027 | } | |
14028 | ||
d9a6bd32 | 14029 | c = build_omp_clause (loc, OMP_CLAUSE_DEFAULTMAP); |
28567c40 | 14030 | OMP_CLAUSE_DEFAULTMAP_SET_KIND (c, behavior, category); |
d9a6bd32 JJ |
14031 | OMP_CLAUSE_CHAIN (c) = list; |
14032 | return c; | |
14033 | ||
14034 | out_err: | |
32129a17 | 14035 | parens.skip_until_found_close (parser); |
d9a6bd32 JJ |
14036 | return list; |
14037 | } | |
14038 | ||
c7b48c8a TS |
14039 | /* OpenACC 2.0: |
14040 | use_device ( variable-list ) | |
14041 | ||
14042 | OpenMP 4.5: | |
d9a6bd32 JJ |
14043 | use_device_ptr ( variable-list ) */ |
14044 | ||
14045 | static tree | |
14046 | c_parser_omp_clause_use_device_ptr (c_parser *parser, tree list) | |
14047 | { | |
14048 | return c_parser_omp_var_list_parens (parser, OMP_CLAUSE_USE_DEVICE_PTR, | |
14049 | list); | |
14050 | } | |
14051 | ||
398e3feb JJ |
14052 | /* OpenMP 5.0: |
14053 | use_device_addr ( variable-list ) */ | |
14054 | ||
14055 | static tree | |
14056 | c_parser_omp_clause_use_device_addr (c_parser *parser, tree list) | |
14057 | { | |
14058 | return c_parser_omp_var_list_parens (parser, OMP_CLAUSE_USE_DEVICE_ADDR, | |
14059 | list); | |
14060 | } | |
14061 | ||
d9a6bd32 JJ |
14062 | /* OpenMP 4.5: |
14063 | is_device_ptr ( variable-list ) */ | |
14064 | ||
14065 | static tree | |
14066 | c_parser_omp_clause_is_device_ptr (c_parser *parser, tree list) | |
14067 | { | |
14068 | return c_parser_omp_var_list_parens (parser, OMP_CLAUSE_IS_DEVICE_PTR, list); | |
14069 | } | |
14070 | ||
41dbbb37 | 14071 | /* OpenACC: |
1e47f02b TS |
14072 | num_gangs ( expression ) |
14073 | num_workers ( expression ) | |
14074 | vector_length ( expression ) */ | |
41dbbb37 TS |
14075 | |
14076 | static tree | |
1e47f02b TS |
14077 | c_parser_oacc_single_int_clause (c_parser *parser, omp_clause_code code, |
14078 | tree list) | |
41dbbb37 | 14079 | { |
1e47f02b | 14080 | location_t loc = c_parser_peek_token (parser)->location; |
41dbbb37 | 14081 | |
32129a17 DM |
14082 | matching_parens parens; |
14083 | if (!parens.require_open (parser)) | |
1e47f02b | 14084 | return list; |
41dbbb37 | 14085 | |
1e47f02b TS |
14086 | location_t expr_loc = c_parser_peek_token (parser)->location; |
14087 | c_expr expr = c_parser_expression (parser); | |
14088 | expr = convert_lvalue_to_rvalue (expr_loc, expr, false, true); | |
14089 | tree c, t = expr.value; | |
14090 | t = c_fully_fold (t, false, NULL); | |
41dbbb37 | 14091 | |
32129a17 | 14092 | parens.skip_until_found_close (parser); |
41dbbb37 | 14093 | |
1e47f02b TS |
14094 | if (t == error_mark_node) |
14095 | return list; | |
14096 | else if (!INTEGRAL_TYPE_P (TREE_TYPE (t))) | |
14097 | { | |
14098 | error_at (expr_loc, "%qs expression must be integral", | |
14099 | omp_clause_code_name[code]); | |
14100 | return list; | |
14101 | } | |
41dbbb37 | 14102 | |
1e47f02b TS |
14103 | /* Attempt to statically determine when the number isn't positive. */ |
14104 | c = fold_build2_loc (expr_loc, LE_EXPR, boolean_type_node, t, | |
14105 | build_int_cst (TREE_TYPE (t), 0)); | |
14106 | protected_set_expr_location (c, expr_loc); | |
14107 | if (c == boolean_true_node) | |
14108 | { | |
14109 | warning_at (expr_loc, 0, | |
14110 | "%qs value must be positive", | |
14111 | omp_clause_code_name[code]); | |
14112 | t = integer_one_node; | |
41dbbb37 TS |
14113 | } |
14114 | ||
1e47f02b TS |
14115 | check_no_duplicate_clause (list, code, omp_clause_code_name[code]); |
14116 | ||
14117 | c = build_omp_clause (loc, code); | |
14118 | OMP_CLAUSE_OPERAND (c, 0) = t; | |
14119 | OMP_CLAUSE_CHAIN (c) = list; | |
14120 | return c; | |
41dbbb37 TS |
14121 | } |
14122 | ||
765dd391 CP |
14123 | /* OpenACC: |
14124 | ||
14125 | gang [( gang-arg-list )] | |
14126 | worker [( [num:] int-expr )] | |
14127 | vector [( [length:] int-expr )] | |
14128 | ||
14129 | where gang-arg is one of: | |
14130 | ||
14131 | [num:] int-expr | |
14132 | static: size-expr | |
14133 | ||
14134 | and size-expr may be: | |
14135 | ||
14136 | * | |
14137 | int-expr | |
14138 | */ | |
14139 | ||
14140 | static tree | |
2263c9f2 TS |
14141 | c_parser_oacc_shape_clause (c_parser *parser, location_t loc, |
14142 | omp_clause_code kind, | |
765dd391 CP |
14143 | const char *str, tree list) |
14144 | { | |
14145 | const char *id = "num"; | |
14146 | tree ops[2] = { NULL_TREE, NULL_TREE }, c; | |
765dd391 CP |
14147 | |
14148 | if (kind == OMP_CLAUSE_VECTOR) | |
14149 | id = "length"; | |
14150 | ||
14151 | if (c_parser_next_token_is (parser, CPP_OPEN_PAREN)) | |
14152 | { | |
14153 | c_parser_consume_token (parser); | |
14154 | ||
14155 | do | |
14156 | { | |
14157 | c_token *next = c_parser_peek_token (parser); | |
14158 | int idx = 0; | |
14159 | ||
14160 | /* Gang static argument. */ | |
14161 | if (kind == OMP_CLAUSE_GANG | |
14162 | && c_parser_next_token_is_keyword (parser, RID_STATIC)) | |
14163 | { | |
14164 | c_parser_consume_token (parser); | |
14165 | ||
14166 | if (!c_parser_require (parser, CPP_COLON, "expected %<:%>")) | |
14167 | goto cleanup_error; | |
14168 | ||
14169 | idx = 1; | |
14170 | if (ops[idx] != NULL_TREE) | |
14171 | { | |
14172 | c_parser_error (parser, "too many %<static%> arguments"); | |
14173 | goto cleanup_error; | |
14174 | } | |
14175 | ||
14176 | /* Check for the '*' argument. */ | |
7a5e4956 CP |
14177 | if (c_parser_next_token_is (parser, CPP_MULT) |
14178 | && (c_parser_peek_2nd_token (parser)->type == CPP_COMMA | |
14179 | || c_parser_peek_2nd_token (parser)->type | |
14180 | == CPP_CLOSE_PAREN)) | |
765dd391 CP |
14181 | { |
14182 | c_parser_consume_token (parser); | |
14183 | ops[idx] = integer_minus_one_node; | |
14184 | ||
14185 | if (c_parser_next_token_is (parser, CPP_COMMA)) | |
14186 | { | |
14187 | c_parser_consume_token (parser); | |
14188 | continue; | |
14189 | } | |
14190 | else | |
14191 | break; | |
14192 | } | |
14193 | } | |
14194 | /* Worker num: argument and vector length: arguments. */ | |
14195 | else if (c_parser_next_token_is (parser, CPP_NAME) | |
14196 | && strcmp (id, IDENTIFIER_POINTER (next->value)) == 0 | |
14197 | && c_parser_peek_2nd_token (parser)->type == CPP_COLON) | |
14198 | { | |
14199 | c_parser_consume_token (parser); /* id */ | |
14200 | c_parser_consume_token (parser); /* ':' */ | |
14201 | } | |
14202 | ||
14203 | /* Now collect the actual argument. */ | |
14204 | if (ops[idx] != NULL_TREE) | |
14205 | { | |
14206 | c_parser_error (parser, "unexpected argument"); | |
14207 | goto cleanup_error; | |
14208 | } | |
14209 | ||
14210 | location_t expr_loc = c_parser_peek_token (parser)->location; | |
9dc5773f JJ |
14211 | c_expr cexpr = c_parser_expr_no_commas (parser, NULL); |
14212 | cexpr = convert_lvalue_to_rvalue (expr_loc, cexpr, false, true); | |
14213 | tree expr = cexpr.value; | |
765dd391 CP |
14214 | if (expr == error_mark_node) |
14215 | goto cleanup_error; | |
14216 | ||
765dd391 CP |
14217 | expr = c_fully_fold (expr, false, NULL); |
14218 | ||
14219 | /* Attempt to statically determine when the number isn't a | |
14220 | positive integer. */ | |
14221 | ||
14222 | if (!INTEGRAL_TYPE_P (TREE_TYPE (expr))) | |
14223 | { | |
14224 | c_parser_error (parser, "expected integer expression"); | |
14225 | return list; | |
14226 | } | |
14227 | ||
14228 | tree c = fold_build2_loc (expr_loc, LE_EXPR, boolean_type_node, expr, | |
14229 | build_int_cst (TREE_TYPE (expr), 0)); | |
14230 | if (c == boolean_true_node) | |
14231 | { | |
14232 | warning_at (loc, 0, | |
2f6f187a | 14233 | "%qs value must be positive", str); |
765dd391 CP |
14234 | expr = integer_one_node; |
14235 | } | |
14236 | ||
14237 | ops[idx] = expr; | |
14238 | ||
14239 | if (kind == OMP_CLAUSE_GANG | |
14240 | && c_parser_next_token_is (parser, CPP_COMMA)) | |
14241 | { | |
14242 | c_parser_consume_token (parser); | |
14243 | continue; | |
14244 | } | |
14245 | break; | |
14246 | } | |
14247 | while (1); | |
14248 | ||
14249 | if (!c_parser_require (parser, CPP_CLOSE_PAREN, "expected %<)%>")) | |
14250 | goto cleanup_error; | |
14251 | } | |
14252 | ||
14253 | check_no_duplicate_clause (list, kind, str); | |
14254 | ||
14255 | c = build_omp_clause (loc, kind); | |
14256 | ||
14257 | if (ops[1]) | |
14258 | OMP_CLAUSE_OPERAND (c, 1) = ops[1]; | |
14259 | ||
14260 | OMP_CLAUSE_OPERAND (c, 0) = ops[0]; | |
14261 | OMP_CLAUSE_CHAIN (c) = list; | |
14262 | ||
14263 | return c; | |
14264 | ||
14265 | cleanup_error: | |
14266 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, 0); | |
14267 | return list; | |
14268 | } | |
14269 | ||
829c6349 | 14270 | /* OpenACC 2.5: |
765dd391 | 14271 | auto |
829c6349 | 14272 | finalize |
765dd391 CP |
14273 | independent |
14274 | nohost | |
14275 | seq */ | |
14276 | ||
14277 | static tree | |
2263c9f2 | 14278 | c_parser_oacc_simple_clause (location_t loc, enum omp_clause_code code, |
765dd391 CP |
14279 | tree list) |
14280 | { | |
14281 | check_no_duplicate_clause (list, code, omp_clause_code_name[code]); | |
14282 | ||
2263c9f2 | 14283 | tree c = build_omp_clause (loc, code); |
765dd391 CP |
14284 | OMP_CLAUSE_CHAIN (c) = list; |
14285 | ||
14286 | return c; | |
14287 | } | |
14288 | ||
41dbbb37 TS |
14289 | /* OpenACC: |
14290 | async [( int-expr )] */ | |
14291 | ||
14292 | static tree | |
14293 | c_parser_oacc_clause_async (c_parser *parser, tree list) | |
14294 | { | |
14295 | tree c, t; | |
14296 | location_t loc = c_parser_peek_token (parser)->location; | |
14297 | ||
14298 | t = build_int_cst (integer_type_node, GOMP_ASYNC_NOVAL); | |
14299 | ||
14300 | if (c_parser_peek_token (parser)->type == CPP_OPEN_PAREN) | |
14301 | { | |
14302 | c_parser_consume_token (parser); | |
14303 | ||
14304 | t = c_parser_expression (parser).value; | |
14305 | if (!INTEGRAL_TYPE_P (TREE_TYPE (t))) | |
14306 | c_parser_error (parser, "expected integer expression"); | |
14307 | else if (t == error_mark_node | |
14308 | || !c_parser_require (parser, CPP_CLOSE_PAREN, "expected %<)%>")) | |
14309 | return list; | |
14310 | } | |
14311 | else | |
14312 | t = c_fully_fold (t, false, NULL); | |
14313 | ||
14314 | check_no_duplicate_clause (list, OMP_CLAUSE_ASYNC, "async"); | |
14315 | ||
14316 | c = build_omp_clause (loc, OMP_CLAUSE_ASYNC); | |
14317 | OMP_CLAUSE_ASYNC_EXPR (c) = t; | |
14318 | OMP_CLAUSE_CHAIN (c) = list; | |
14319 | list = c; | |
14320 | ||
14321 | return list; | |
14322 | } | |
14323 | ||
7a5e4956 CP |
14324 | /* OpenACC 2.0: |
14325 | tile ( size-expr-list ) */ | |
14326 | ||
14327 | static tree | |
14328 | c_parser_oacc_clause_tile (c_parser *parser, tree list) | |
14329 | { | |
14330 | tree c, expr = error_mark_node; | |
02889d23 | 14331 | location_t loc; |
7a5e4956 CP |
14332 | tree tile = NULL_TREE; |
14333 | ||
14334 | check_no_duplicate_clause (list, OMP_CLAUSE_TILE, "tile"); | |
02889d23 | 14335 | check_no_duplicate_clause (list, OMP_CLAUSE_COLLAPSE, "collapse"); |
7a5e4956 CP |
14336 | |
14337 | loc = c_parser_peek_token (parser)->location; | |
14338 | if (!c_parser_require (parser, CPP_OPEN_PAREN, "expected %<(%>")) | |
14339 | return list; | |
14340 | ||
14341 | do | |
14342 | { | |
02889d23 CLT |
14343 | if (tile && !c_parser_require (parser, CPP_COMMA, "expected %<,%>")) |
14344 | return list; | |
14345 | ||
7a5e4956 CP |
14346 | if (c_parser_next_token_is (parser, CPP_MULT) |
14347 | && (c_parser_peek_2nd_token (parser)->type == CPP_COMMA | |
14348 | || c_parser_peek_2nd_token (parser)->type == CPP_CLOSE_PAREN)) | |
14349 | { | |
14350 | c_parser_consume_token (parser); | |
02889d23 | 14351 | expr = integer_zero_node; |
7a5e4956 CP |
14352 | } |
14353 | else | |
14354 | { | |
02889d23 | 14355 | location_t expr_loc = c_parser_peek_token (parser)->location; |
9dc5773f JJ |
14356 | c_expr cexpr = c_parser_expr_no_commas (parser, NULL); |
14357 | cexpr = convert_lvalue_to_rvalue (expr_loc, cexpr, false, true); | |
14358 | expr = cexpr.value; | |
7a5e4956 CP |
14359 | |
14360 | if (expr == error_mark_node) | |
14361 | { | |
14362 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, | |
14363 | "expected %<)%>"); | |
14364 | return list; | |
14365 | } | |
14366 | ||
7a5e4956 CP |
14367 | expr = c_fully_fold (expr, false, NULL); |
14368 | ||
02889d23 CLT |
14369 | if (!INTEGRAL_TYPE_P (TREE_TYPE (expr)) |
14370 | || !tree_fits_shwi_p (expr) | |
14371 | || tree_to_shwi (expr) <= 0) | |
7a5e4956 | 14372 | { |
02889d23 CLT |
14373 | error_at (expr_loc, "%<tile%> argument needs positive" |
14374 | " integral constant"); | |
14375 | expr = integer_zero_node; | |
7a5e4956 CP |
14376 | } |
14377 | } | |
14378 | ||
14379 | tile = tree_cons (NULL_TREE, expr, tile); | |
7a5e4956 CP |
14380 | } |
14381 | while (c_parser_next_token_is_not (parser, CPP_CLOSE_PAREN)); | |
14382 | ||
14383 | /* Consume the trailing ')'. */ | |
14384 | c_parser_consume_token (parser); | |
14385 | ||
14386 | c = build_omp_clause (loc, OMP_CLAUSE_TILE); | |
14387 | tile = nreverse (tile); | |
14388 | OMP_CLAUSE_TILE_LIST (c) = tile; | |
14389 | OMP_CLAUSE_CHAIN (c) = list; | |
14390 | return c; | |
14391 | } | |
14392 | ||
41dbbb37 | 14393 | /* OpenACC: |
19695f4d | 14394 | wait [( int-expr-list )] */ |
41dbbb37 TS |
14395 | |
14396 | static tree | |
14397 | c_parser_oacc_clause_wait (c_parser *parser, tree list) | |
14398 | { | |
14399 | location_t clause_loc = c_parser_peek_token (parser)->location; | |
14400 | ||
14401 | if (c_parser_peek_token (parser)->type == CPP_OPEN_PAREN) | |
14402 | list = c_parser_oacc_wait_list (parser, clause_loc, list); | |
19695f4d CLT |
14403 | else |
14404 | { | |
14405 | tree c = build_omp_clause (clause_loc, OMP_CLAUSE_WAIT); | |
14406 | ||
14407 | OMP_CLAUSE_DECL (c) = build_int_cst (integer_type_node, GOMP_ASYNC_NOVAL); | |
14408 | OMP_CLAUSE_CHAIN (c) = list; | |
14409 | list = c; | |
14410 | } | |
41dbbb37 TS |
14411 | |
14412 | return list; | |
14413 | } | |
14414 | ||
1fdd6f04 JJ |
14415 | |
14416 | /* OpenMP 5.0: | |
14417 | order ( concurrent ) */ | |
14418 | ||
14419 | static tree | |
14420 | c_parser_omp_clause_order (c_parser *parser, tree list) | |
14421 | { | |
14422 | location_t loc = c_parser_peek_token (parser)->location; | |
14423 | tree c; | |
14424 | const char *p; | |
14425 | ||
14426 | matching_parens parens; | |
14427 | if (!parens.require_open (parser)) | |
14428 | return list; | |
14429 | if (!c_parser_next_token_is (parser, CPP_NAME)) | |
14430 | { | |
14431 | c_parser_error (parser, "expected %<concurrent%>"); | |
14432 | goto out_err; | |
14433 | } | |
14434 | p = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
14435 | if (strcmp (p, "concurrent") != 0) | |
14436 | { | |
14437 | c_parser_error (parser, "expected %<concurrent%>"); | |
14438 | goto out_err; | |
14439 | } | |
14440 | c_parser_consume_token (parser); | |
14441 | parens.skip_until_found_close (parser); | |
14442 | /* check_no_duplicate_clause (list, OMP_CLAUSE_ORDER, "order"); */ | |
14443 | c = build_omp_clause (loc, OMP_CLAUSE_ORDER); | |
14444 | OMP_CLAUSE_CHAIN (c) = list; | |
14445 | return c; | |
14446 | ||
14447 | out_err: | |
14448 | parens.skip_until_found_close (parser); | |
14449 | return list; | |
14450 | } | |
14451 | ||
14452 | ||
554a530f JJ |
14453 | /* OpenMP 5.0: |
14454 | bind ( teams | parallel | thread ) */ | |
14455 | ||
14456 | static tree | |
14457 | c_parser_omp_clause_bind (c_parser *parser, tree list) | |
14458 | { | |
14459 | location_t loc = c_parser_peek_token (parser)->location; | |
14460 | tree c; | |
14461 | const char *p; | |
14462 | enum omp_clause_bind_kind kind = OMP_CLAUSE_BIND_THREAD; | |
14463 | ||
14464 | matching_parens parens; | |
14465 | if (!parens.require_open (parser)) | |
14466 | return list; | |
14467 | if (!c_parser_next_token_is (parser, CPP_NAME)) | |
14468 | { | |
14469 | invalid: | |
14470 | c_parser_error (parser, | |
14471 | "expected %<teams%>, %<parallel%> or %<thread%>"); | |
14472 | parens.skip_until_found_close (parser); | |
14473 | return list; | |
14474 | } | |
14475 | p = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
14476 | if (strcmp (p, "teams") == 0) | |
14477 | kind = OMP_CLAUSE_BIND_TEAMS; | |
14478 | else if (strcmp (p, "parallel") == 0) | |
14479 | kind = OMP_CLAUSE_BIND_PARALLEL; | |
14480 | else if (strcmp (p, "thread") != 0) | |
14481 | goto invalid; | |
14482 | c_parser_consume_token (parser); | |
14483 | parens.skip_until_found_close (parser); | |
14484 | /* check_no_duplicate_clause (list, OMP_CLAUSE_BIND, "bind"); */ | |
14485 | c = build_omp_clause (loc, OMP_CLAUSE_BIND); | |
14486 | OMP_CLAUSE_BIND_KIND (c) = kind; | |
14487 | OMP_CLAUSE_CHAIN (c) = list; | |
14488 | return c; | |
14489 | } | |
14490 | ||
14491 | ||
953ff289 | 14492 | /* OpenMP 2.5: |
d9a6bd32 JJ |
14493 | ordered |
14494 | ||
14495 | OpenMP 4.5: | |
14496 | ordered ( constant-expression ) */ | |
953ff289 DN |
14497 | |
14498 | static tree | |
c2255bc4 | 14499 | c_parser_omp_clause_ordered (c_parser *parser, tree list) |
953ff289 | 14500 | { |
953ff289 DN |
14501 | check_no_duplicate_clause (list, OMP_CLAUSE_ORDERED, "ordered"); |
14502 | ||
d9a6bd32 JJ |
14503 | tree c, num = NULL_TREE; |
14504 | HOST_WIDE_INT n; | |
14505 | location_t loc = c_parser_peek_token (parser)->location; | |
14506 | if (c_parser_next_token_is (parser, CPP_OPEN_PAREN)) | |
14507 | { | |
32129a17 DM |
14508 | matching_parens parens; |
14509 | parens.consume_open (parser); | |
d9a6bd32 | 14510 | num = c_parser_expr_no_commas (parser, NULL).value; |
32129a17 | 14511 | parens.skip_until_found_close (parser); |
d9a6bd32 JJ |
14512 | } |
14513 | if (num == error_mark_node) | |
14514 | return list; | |
14515 | if (num) | |
14516 | { | |
14517 | mark_exp_read (num); | |
14518 | num = c_fully_fold (num, false, NULL); | |
14519 | if (!INTEGRAL_TYPE_P (TREE_TYPE (num)) | |
14520 | || !tree_fits_shwi_p (num) | |
14521 | || (n = tree_to_shwi (num)) <= 0 | |
14522 | || (int) n != n) | |
14523 | { | |
14524 | error_at (loc, "ordered argument needs positive " | |
14525 | "constant integer expression"); | |
14526 | return list; | |
14527 | } | |
14528 | } | |
14529 | c = build_omp_clause (loc, OMP_CLAUSE_ORDERED); | |
14530 | OMP_CLAUSE_ORDERED_EXPR (c) = num; | |
953ff289 DN |
14531 | OMP_CLAUSE_CHAIN (c) = list; |
14532 | return c; | |
14533 | } | |
14534 | ||
14535 | /* OpenMP 2.5: | |
14536 | private ( variable-list ) */ | |
14537 | ||
14538 | static tree | |
14539 | c_parser_omp_clause_private (c_parser *parser, tree list) | |
14540 | { | |
14541 | return c_parser_omp_var_list_parens (parser, OMP_CLAUSE_PRIVATE, list); | |
14542 | } | |
14543 | ||
14544 | /* OpenMP 2.5: | |
14545 | reduction ( reduction-operator : variable-list ) | |
14546 | ||
14547 | reduction-operator: | |
20906c66 | 14548 | One of: + * - & ^ | && || |
acf0174b | 14549 | |
20906c66 JJ |
14550 | OpenMP 3.1: |
14551 | ||
14552 | reduction-operator: | |
acf0174b JJ |
14553 | One of: + * - & ^ | && || max min |
14554 | ||
14555 | OpenMP 4.0: | |
14556 | ||
14557 | reduction-operator: | |
14558 | One of: + * - & ^ | && || | |
28567c40 JJ |
14559 | identifier |
14560 | ||
14561 | OpenMP 5.0: | |
14562 | reduction ( reduction-modifier, reduction-operator : variable-list ) | |
14563 | in_reduction ( reduction-operator : variable-list ) | |
14564 | task_reduction ( reduction-operator : variable-list ) */ | |
953ff289 DN |
14565 | |
14566 | static tree | |
28567c40 JJ |
14567 | c_parser_omp_clause_reduction (c_parser *parser, enum omp_clause_code kind, |
14568 | bool is_omp, tree list) | |
953ff289 | 14569 | { |
c2255bc4 | 14570 | location_t clause_loc = c_parser_peek_token (parser)->location; |
32129a17 DM |
14571 | matching_parens parens; |
14572 | if (parens.require_open (parser)) | |
953ff289 | 14573 | { |
28567c40 JJ |
14574 | bool task = false; |
14575 | bool inscan = false; | |
acf0174b JJ |
14576 | enum tree_code code = ERROR_MARK; |
14577 | tree reduc_id = NULL_TREE; | |
953ff289 | 14578 | |
28567c40 JJ |
14579 | if (kind == OMP_CLAUSE_REDUCTION && is_omp) |
14580 | { | |
14581 | if (c_parser_next_token_is_keyword (parser, RID_DEFAULT) | |
14582 | && c_parser_peek_2nd_token (parser)->type == CPP_COMMA) | |
14583 | { | |
14584 | c_parser_consume_token (parser); | |
14585 | c_parser_consume_token (parser); | |
14586 | } | |
14587 | else if (c_parser_next_token_is (parser, CPP_NAME) | |
14588 | && c_parser_peek_2nd_token (parser)->type == CPP_COMMA) | |
14589 | { | |
14590 | const char *p | |
14591 | = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
14592 | if (strcmp (p, "task") == 0) | |
14593 | task = true; | |
14594 | else if (strcmp (p, "inscan") == 0) | |
bf38f7e9 | 14595 | inscan = true; |
28567c40 JJ |
14596 | if (task || inscan) |
14597 | { | |
14598 | c_parser_consume_token (parser); | |
14599 | c_parser_consume_token (parser); | |
14600 | } | |
14601 | } | |
14602 | } | |
14603 | ||
953ff289 DN |
14604 | switch (c_parser_peek_token (parser)->type) |
14605 | { | |
14606 | case CPP_PLUS: | |
14607 | code = PLUS_EXPR; | |
14608 | break; | |
14609 | case CPP_MULT: | |
14610 | code = MULT_EXPR; | |
14611 | break; | |
14612 | case CPP_MINUS: | |
14613 | code = MINUS_EXPR; | |
14614 | break; | |
14615 | case CPP_AND: | |
14616 | code = BIT_AND_EXPR; | |
14617 | break; | |
14618 | case CPP_XOR: | |
14619 | code = BIT_XOR_EXPR; | |
14620 | break; | |
14621 | case CPP_OR: | |
14622 | code = BIT_IOR_EXPR; | |
14623 | break; | |
14624 | case CPP_AND_AND: | |
14625 | code = TRUTH_ANDIF_EXPR; | |
14626 | break; | |
14627 | case CPP_OR_OR: | |
14628 | code = TRUTH_ORIF_EXPR; | |
14629 | break; | |
20906c66 JJ |
14630 | case CPP_NAME: |
14631 | { | |
14632 | const char *p | |
14633 | = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
14634 | if (strcmp (p, "min") == 0) | |
14635 | { | |
14636 | code = MIN_EXPR; | |
14637 | break; | |
14638 | } | |
14639 | if (strcmp (p, "max") == 0) | |
14640 | { | |
14641 | code = MAX_EXPR; | |
14642 | break; | |
14643 | } | |
acf0174b JJ |
14644 | reduc_id = c_parser_peek_token (parser)->value; |
14645 | break; | |
20906c66 | 14646 | } |
953ff289 DN |
14647 | default: |
14648 | c_parser_error (parser, | |
14649 | "expected %<+%>, %<*%>, %<-%>, %<&%>, " | |
79c9b7a8 | 14650 | "%<^%>, %<|%>, %<&&%>, %<||%> or identifier"); |
953ff289 DN |
14651 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, 0); |
14652 | return list; | |
14653 | } | |
14654 | c_parser_consume_token (parser); | |
acf0174b | 14655 | reduc_id = c_omp_reduction_id (code, reduc_id); |
953ff289 DN |
14656 | if (c_parser_require (parser, CPP_COLON, "expected %<:%>")) |
14657 | { | |
14658 | tree nl, c; | |
14659 | ||
28567c40 | 14660 | nl = c_parser_omp_variable_list (parser, clause_loc, kind, list); |
953ff289 | 14661 | for (c = nl; c != list; c = OMP_CLAUSE_CHAIN (c)) |
acf0174b | 14662 | { |
d9a6bd32 JJ |
14663 | tree d = OMP_CLAUSE_DECL (c), type; |
14664 | if (TREE_CODE (d) != TREE_LIST) | |
14665 | type = TREE_TYPE (d); | |
14666 | else | |
14667 | { | |
14668 | int cnt = 0; | |
14669 | tree t; | |
14670 | for (t = d; TREE_CODE (t) == TREE_LIST; t = TREE_CHAIN (t)) | |
14671 | cnt++; | |
14672 | type = TREE_TYPE (t); | |
14673 | while (cnt > 0) | |
14674 | { | |
14675 | if (TREE_CODE (type) != POINTER_TYPE | |
14676 | && TREE_CODE (type) != ARRAY_TYPE) | |
14677 | break; | |
14678 | type = TREE_TYPE (type); | |
14679 | cnt--; | |
14680 | } | |
14681 | } | |
14682 | while (TREE_CODE (type) == ARRAY_TYPE) | |
14683 | type = TREE_TYPE (type); | |
acf0174b | 14684 | OMP_CLAUSE_REDUCTION_CODE (c) = code; |
28567c40 JJ |
14685 | if (task) |
14686 | OMP_CLAUSE_REDUCTION_TASK (c) = 1; | |
14687 | else if (inscan) | |
14688 | OMP_CLAUSE_REDUCTION_INSCAN (c) = 1; | |
acf0174b JJ |
14689 | if (code == ERROR_MARK |
14690 | || !(INTEGRAL_TYPE_P (type) | |
14691 | || TREE_CODE (type) == REAL_TYPE | |
14692 | || TREE_CODE (type) == COMPLEX_TYPE)) | |
14693 | OMP_CLAUSE_REDUCTION_PLACEHOLDER (c) | |
14694 | = c_omp_reduction_lookup (reduc_id, | |
14695 | TYPE_MAIN_VARIANT (type)); | |
14696 | } | |
953ff289 DN |
14697 | |
14698 | list = nl; | |
14699 | } | |
32129a17 | 14700 | parens.skip_until_found_close (parser); |
953ff289 DN |
14701 | } |
14702 | return list; | |
14703 | } | |
14704 | ||
14705 | /* OpenMP 2.5: | |
14706 | schedule ( schedule-kind ) | |
14707 | schedule ( schedule-kind , expression ) | |
14708 | ||
14709 | schedule-kind: | |
a68ab351 | 14710 | static | dynamic | guided | runtime | auto |
d9a6bd32 JJ |
14711 | |
14712 | OpenMP 4.5: | |
14713 | schedule ( schedule-modifier : schedule-kind ) | |
e01d41e5 | 14714 | schedule ( schedule-modifier [ , schedule-modifier ] : schedule-kind , expression ) |
d9a6bd32 JJ |
14715 | |
14716 | schedule-modifier: | |
e01d41e5 JJ |
14717 | simd |
14718 | monotonic | |
14719 | nonmonotonic */ | |
953ff289 DN |
14720 | |
14721 | static tree | |
14722 | c_parser_omp_clause_schedule (c_parser *parser, tree list) | |
14723 | { | |
14724 | tree c, t; | |
c2255bc4 | 14725 | location_t loc = c_parser_peek_token (parser)->location; |
e01d41e5 | 14726 | int modifiers = 0, nmodifiers = 0; |
953ff289 | 14727 | |
32129a17 DM |
14728 | matching_parens parens; |
14729 | if (!parens.require_open (parser)) | |
953ff289 DN |
14730 | return list; |
14731 | ||
c2255bc4 | 14732 | c = build_omp_clause (loc, OMP_CLAUSE_SCHEDULE); |
953ff289 | 14733 | |
e01d41e5 | 14734 | while (c_parser_next_token_is (parser, CPP_NAME)) |
d9a6bd32 JJ |
14735 | { |
14736 | tree kind = c_parser_peek_token (parser)->value; | |
14737 | const char *p = IDENTIFIER_POINTER (kind); | |
e01d41e5 JJ |
14738 | if (strcmp ("simd", p) == 0) |
14739 | OMP_CLAUSE_SCHEDULE_SIMD (c) = 1; | |
14740 | else if (strcmp ("monotonic", p) == 0) | |
14741 | modifiers |= OMP_CLAUSE_SCHEDULE_MONOTONIC; | |
14742 | else if (strcmp ("nonmonotonic", p) == 0) | |
14743 | modifiers |= OMP_CLAUSE_SCHEDULE_NONMONOTONIC; | |
14744 | else | |
14745 | break; | |
14746 | c_parser_consume_token (parser); | |
14747 | if (nmodifiers++ == 0 | |
14748 | && c_parser_next_token_is (parser, CPP_COMMA)) | |
14749 | c_parser_consume_token (parser); | |
14750 | else | |
d9a6bd32 | 14751 | { |
e01d41e5 JJ |
14752 | c_parser_require (parser, CPP_COLON, "expected %<:%>"); |
14753 | break; | |
d9a6bd32 JJ |
14754 | } |
14755 | } | |
14756 | ||
e01d41e5 JJ |
14757 | if ((modifiers & (OMP_CLAUSE_SCHEDULE_MONOTONIC |
14758 | | OMP_CLAUSE_SCHEDULE_NONMONOTONIC)) | |
14759 | == (OMP_CLAUSE_SCHEDULE_MONOTONIC | |
14760 | | OMP_CLAUSE_SCHEDULE_NONMONOTONIC)) | |
14761 | { | |
14762 | error_at (loc, "both %<monotonic%> and %<nonmonotonic%> modifiers " | |
14763 | "specified"); | |
14764 | modifiers = 0; | |
14765 | } | |
14766 | ||
953ff289 DN |
14767 | if (c_parser_next_token_is (parser, CPP_NAME)) |
14768 | { | |
14769 | tree kind = c_parser_peek_token (parser)->value; | |
14770 | const char *p = IDENTIFIER_POINTER (kind); | |
14771 | ||
14772 | switch (p[0]) | |
14773 | { | |
14774 | case 'd': | |
14775 | if (strcmp ("dynamic", p) != 0) | |
14776 | goto invalid_kind; | |
14777 | OMP_CLAUSE_SCHEDULE_KIND (c) = OMP_CLAUSE_SCHEDULE_DYNAMIC; | |
14778 | break; | |
14779 | ||
14780 | case 'g': | |
14781 | if (strcmp ("guided", p) != 0) | |
14782 | goto invalid_kind; | |
14783 | OMP_CLAUSE_SCHEDULE_KIND (c) = OMP_CLAUSE_SCHEDULE_GUIDED; | |
14784 | break; | |
14785 | ||
14786 | case 'r': | |
14787 | if (strcmp ("runtime", p) != 0) | |
14788 | goto invalid_kind; | |
14789 | OMP_CLAUSE_SCHEDULE_KIND (c) = OMP_CLAUSE_SCHEDULE_RUNTIME; | |
14790 | break; | |
14791 | ||
14792 | default: | |
14793 | goto invalid_kind; | |
14794 | } | |
14795 | } | |
14796 | else if (c_parser_next_token_is_keyword (parser, RID_STATIC)) | |
14797 | OMP_CLAUSE_SCHEDULE_KIND (c) = OMP_CLAUSE_SCHEDULE_STATIC; | |
a68ab351 JJ |
14798 | else if (c_parser_next_token_is_keyword (parser, RID_AUTO)) |
14799 | OMP_CLAUSE_SCHEDULE_KIND (c) = OMP_CLAUSE_SCHEDULE_AUTO; | |
953ff289 DN |
14800 | else |
14801 | goto invalid_kind; | |
14802 | ||
14803 | c_parser_consume_token (parser); | |
14804 | if (c_parser_next_token_is (parser, CPP_COMMA)) | |
14805 | { | |
c7412148 | 14806 | location_t here; |
953ff289 DN |
14807 | c_parser_consume_token (parser); |
14808 | ||
c7412148 | 14809 | here = c_parser_peek_token (parser)->location; |
9dc5773f JJ |
14810 | c_expr expr = c_parser_expr_no_commas (parser, NULL); |
14811 | expr = convert_lvalue_to_rvalue (here, expr, false, true); | |
14812 | t = expr.value; | |
928c19bb | 14813 | t = c_fully_fold (t, false, NULL); |
953ff289 DN |
14814 | |
14815 | if (OMP_CLAUSE_SCHEDULE_KIND (c) == OMP_CLAUSE_SCHEDULE_RUNTIME) | |
3ba09659 AH |
14816 | error_at (here, "schedule %<runtime%> does not take " |
14817 | "a %<chunk_size%> parameter"); | |
a68ab351 | 14818 | else if (OMP_CLAUSE_SCHEDULE_KIND (c) == OMP_CLAUSE_SCHEDULE_AUTO) |
3ba09659 AH |
14819 | error_at (here, |
14820 | "schedule %<auto%> does not take " | |
14821 | "a %<chunk_size%> parameter"); | |
953ff289 | 14822 | else if (TREE_CODE (TREE_TYPE (t)) == INTEGER_TYPE) |
7211a097 JJ |
14823 | { |
14824 | /* Attempt to statically determine when the number isn't | |
14825 | positive. */ | |
14826 | tree s = fold_build2_loc (loc, LE_EXPR, boolean_type_node, t, | |
14827 | build_int_cst (TREE_TYPE (t), 0)); | |
14828 | protected_set_expr_location (s, loc); | |
14829 | if (s == boolean_true_node) | |
14830 | { | |
14831 | warning_at (loc, 0, | |
14832 | "chunk size value must be positive"); | |
14833 | t = integer_one_node; | |
14834 | } | |
14835 | OMP_CLAUSE_SCHEDULE_CHUNK_EXPR (c) = t; | |
14836 | } | |
953ff289 DN |
14837 | else |
14838 | c_parser_error (parser, "expected integer expression"); | |
14839 | ||
32129a17 | 14840 | parens.skip_until_found_close (parser); |
953ff289 DN |
14841 | } |
14842 | else | |
14843 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, | |
14844 | "expected %<,%> or %<)%>"); | |
14845 | ||
e01d41e5 JJ |
14846 | OMP_CLAUSE_SCHEDULE_KIND (c) |
14847 | = (enum omp_clause_schedule_kind) | |
14848 | (OMP_CLAUSE_SCHEDULE_KIND (c) | modifiers); | |
14849 | ||
953ff289 DN |
14850 | check_no_duplicate_clause (list, OMP_CLAUSE_SCHEDULE, "schedule"); |
14851 | OMP_CLAUSE_CHAIN (c) = list; | |
14852 | return c; | |
14853 | ||
14854 | invalid_kind: | |
14855 | c_parser_error (parser, "invalid schedule kind"); | |
14856 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, 0); | |
14857 | return list; | |
14858 | } | |
14859 | ||
14860 | /* OpenMP 2.5: | |
14861 | shared ( variable-list ) */ | |
14862 | ||
14863 | static tree | |
14864 | c_parser_omp_clause_shared (c_parser *parser, tree list) | |
14865 | { | |
14866 | return c_parser_omp_var_list_parens (parser, OMP_CLAUSE_SHARED, list); | |
14867 | } | |
14868 | ||
a68ab351 JJ |
14869 | /* OpenMP 3.0: |
14870 | untied */ | |
14871 | ||
14872 | static tree | |
14873 | c_parser_omp_clause_untied (c_parser *parser ATTRIBUTE_UNUSED, tree list) | |
14874 | { | |
14875 | tree c; | |
14876 | ||
14877 | /* FIXME: Should we allow duplicates? */ | |
14878 | check_no_duplicate_clause (list, OMP_CLAUSE_UNTIED, "untied"); | |
14879 | ||
c2255bc4 AH |
14880 | c = build_omp_clause (c_parser_peek_token (parser)->location, |
14881 | OMP_CLAUSE_UNTIED); | |
a68ab351 | 14882 | OMP_CLAUSE_CHAIN (c) = list; |
c2255bc4 | 14883 | |
a68ab351 JJ |
14884 | return c; |
14885 | } | |
14886 | ||
41dbbb37 TS |
14887 | /* OpenMP 4.0: |
14888 | inbranch | |
14889 | notinbranch */ | |
14890 | ||
14891 | static tree | |
14892 | c_parser_omp_clause_branch (c_parser *parser ATTRIBUTE_UNUSED, | |
14893 | enum omp_clause_code code, tree list) | |
14894 | { | |
14895 | check_no_duplicate_clause (list, code, omp_clause_code_name[code]); | |
14896 | ||
14897 | tree c = build_omp_clause (c_parser_peek_token (parser)->location, code); | |
14898 | OMP_CLAUSE_CHAIN (c) = list; | |
14899 | ||
14900 | return c; | |
14901 | } | |
14902 | ||
14903 | /* OpenMP 4.0: | |
14904 | parallel | |
14905 | for | |
14906 | sections | |
14907 | taskgroup */ | |
14908 | ||
14909 | static tree | |
14910 | c_parser_omp_clause_cancelkind (c_parser *parser ATTRIBUTE_UNUSED, | |
14911 | enum omp_clause_code code, tree list) | |
14912 | { | |
14913 | tree c = build_omp_clause (c_parser_peek_token (parser)->location, code); | |
14914 | OMP_CLAUSE_CHAIN (c) = list; | |
acf0174b JJ |
14915 | |
14916 | return c; | |
14917 | } | |
14918 | ||
d9a6bd32 JJ |
14919 | /* OpenMP 4.5: |
14920 | nogroup */ | |
14921 | ||
14922 | static tree | |
14923 | c_parser_omp_clause_nogroup (c_parser *parser ATTRIBUTE_UNUSED, tree list) | |
14924 | { | |
14925 | check_no_duplicate_clause (list, OMP_CLAUSE_NOGROUP, "nogroup"); | |
14926 | tree c = build_omp_clause (c_parser_peek_token (parser)->location, | |
14927 | OMP_CLAUSE_NOGROUP); | |
14928 | OMP_CLAUSE_CHAIN (c) = list; | |
14929 | return c; | |
14930 | } | |
14931 | ||
14932 | /* OpenMP 4.5: | |
14933 | simd | |
14934 | threads */ | |
14935 | ||
14936 | static tree | |
14937 | c_parser_omp_clause_orderedkind (c_parser *parser ATTRIBUTE_UNUSED, | |
14938 | enum omp_clause_code code, tree list) | |
14939 | { | |
14940 | check_no_duplicate_clause (list, code, omp_clause_code_name[code]); | |
14941 | tree c = build_omp_clause (c_parser_peek_token (parser)->location, code); | |
14942 | OMP_CLAUSE_CHAIN (c) = list; | |
14943 | return c; | |
14944 | } | |
14945 | ||
acf0174b JJ |
14946 | /* OpenMP 4.0: |
14947 | num_teams ( expression ) */ | |
14948 | ||
14949 | static tree | |
14950 | c_parser_omp_clause_num_teams (c_parser *parser, tree list) | |
14951 | { | |
14952 | location_t num_teams_loc = c_parser_peek_token (parser)->location; | |
32129a17 DM |
14953 | matching_parens parens; |
14954 | if (parens.require_open (parser)) | |
acf0174b JJ |
14955 | { |
14956 | location_t expr_loc = c_parser_peek_token (parser)->location; | |
81a227c6 | 14957 | c_expr expr = c_parser_expr_no_commas (parser, NULL); |
9dc5773f JJ |
14958 | expr = convert_lvalue_to_rvalue (expr_loc, expr, false, true); |
14959 | tree c, t = expr.value; | |
acf0174b JJ |
14960 | t = c_fully_fold (t, false, NULL); |
14961 | ||
32129a17 | 14962 | parens.skip_until_found_close (parser); |
acf0174b JJ |
14963 | |
14964 | if (!INTEGRAL_TYPE_P (TREE_TYPE (t))) | |
953ff289 | 14965 | { |
acf0174b JJ |
14966 | c_parser_error (parser, "expected integer expression"); |
14967 | return list; | |
953ff289 DN |
14968 | } |
14969 | ||
acf0174b JJ |
14970 | /* Attempt to statically determine when the number isn't positive. */ |
14971 | c = fold_build2_loc (expr_loc, LE_EXPR, boolean_type_node, t, | |
14972 | build_int_cst (TREE_TYPE (t), 0)); | |
21ba0cea | 14973 | protected_set_expr_location (c, expr_loc); |
acf0174b | 14974 | if (c == boolean_true_node) |
953ff289 | 14975 | { |
acf0174b JJ |
14976 | warning_at (expr_loc, 0, "%<num_teams%> value must be positive"); |
14977 | t = integer_one_node; | |
953ff289 | 14978 | } |
953ff289 | 14979 | |
acf0174b | 14980 | check_no_duplicate_clause (list, OMP_CLAUSE_NUM_TEAMS, "num_teams"); |
953ff289 | 14981 | |
acf0174b JJ |
14982 | c = build_omp_clause (num_teams_loc, OMP_CLAUSE_NUM_TEAMS); |
14983 | OMP_CLAUSE_NUM_TEAMS_EXPR (c) = t; | |
14984 | OMP_CLAUSE_CHAIN (c) = list; | |
14985 | list = c; | |
14986 | } | |
953ff289 | 14987 | |
acf0174b JJ |
14988 | return list; |
14989 | } | |
953ff289 | 14990 | |
acf0174b JJ |
14991 | /* OpenMP 4.0: |
14992 | thread_limit ( expression ) */ | |
953ff289 DN |
14993 | |
14994 | static tree | |
acf0174b | 14995 | c_parser_omp_clause_thread_limit (c_parser *parser, tree list) |
953ff289 | 14996 | { |
68c81f24 | 14997 | location_t num_thread_limit_loc = c_parser_peek_token (parser)->location; |
32129a17 DM |
14998 | matching_parens parens; |
14999 | if (parens.require_open (parser)) | |
acf0174b JJ |
15000 | { |
15001 | location_t expr_loc = c_parser_peek_token (parser)->location; | |
81a227c6 | 15002 | c_expr expr = c_parser_expr_no_commas (parser, NULL); |
9dc5773f JJ |
15003 | expr = convert_lvalue_to_rvalue (expr_loc, expr, false, true); |
15004 | tree c, t = expr.value; | |
acf0174b | 15005 | t = c_fully_fold (t, false, NULL); |
953ff289 | 15006 | |
32129a17 | 15007 | parens.skip_until_found_close (parser); |
953ff289 | 15008 | |
acf0174b JJ |
15009 | if (!INTEGRAL_TYPE_P (TREE_TYPE (t))) |
15010 | { | |
15011 | c_parser_error (parser, "expected integer expression"); | |
15012 | return list; | |
15013 | } | |
c2255bc4 | 15014 | |
acf0174b JJ |
15015 | /* Attempt to statically determine when the number isn't positive. */ |
15016 | c = fold_build2_loc (expr_loc, LE_EXPR, boolean_type_node, t, | |
15017 | build_int_cst (TREE_TYPE (t), 0)); | |
21ba0cea | 15018 | protected_set_expr_location (c, expr_loc); |
acf0174b JJ |
15019 | if (c == boolean_true_node) |
15020 | { | |
15021 | warning_at (expr_loc, 0, "%<thread_limit%> value must be positive"); | |
15022 | t = integer_one_node; | |
15023 | } | |
20906c66 | 15024 | |
acf0174b JJ |
15025 | check_no_duplicate_clause (list, OMP_CLAUSE_THREAD_LIMIT, |
15026 | "thread_limit"); | |
20906c66 | 15027 | |
68c81f24 | 15028 | c = build_omp_clause (num_thread_limit_loc, OMP_CLAUSE_THREAD_LIMIT); |
acf0174b JJ |
15029 | OMP_CLAUSE_THREAD_LIMIT_EXPR (c) = t; |
15030 | OMP_CLAUSE_CHAIN (c) = list; | |
15031 | list = c; | |
15032 | } | |
20906c66 | 15033 | |
acf0174b JJ |
15034 | return list; |
15035 | } | |
20906c66 | 15036 | |
acf0174b JJ |
15037 | /* OpenMP 4.0: |
15038 | aligned ( variable-list ) | |
15039 | aligned ( variable-list : constant-expression ) */ | |
20906c66 | 15040 | |
acf0174b JJ |
15041 | static tree |
15042 | c_parser_omp_clause_aligned (c_parser *parser, tree list) | |
15043 | { | |
15044 | location_t clause_loc = c_parser_peek_token (parser)->location; | |
15045 | tree nl, c; | |
20906c66 | 15046 | |
32129a17 DM |
15047 | matching_parens parens; |
15048 | if (!parens.require_open (parser)) | |
acf0174b | 15049 | return list; |
20906c66 | 15050 | |
acf0174b JJ |
15051 | nl = c_parser_omp_variable_list (parser, clause_loc, |
15052 | OMP_CLAUSE_ALIGNED, list); | |
20906c66 | 15053 | |
acf0174b JJ |
15054 | if (c_parser_next_token_is (parser, CPP_COLON)) |
15055 | { | |
15056 | c_parser_consume_token (parser); | |
9dc5773f JJ |
15057 | location_t expr_loc = c_parser_peek_token (parser)->location; |
15058 | c_expr expr = c_parser_expr_no_commas (parser, NULL); | |
15059 | expr = convert_lvalue_to_rvalue (expr_loc, expr, false, true); | |
15060 | tree alignment = expr.value; | |
acf0174b | 15061 | alignment = c_fully_fold (alignment, false, NULL); |
fce5e5e3 JJ |
15062 | if (TREE_CODE (alignment) != INTEGER_CST |
15063 | || !INTEGRAL_TYPE_P (TREE_TYPE (alignment)) | |
15064 | || tree_int_cst_sgn (alignment) != 1) | |
acf0174b JJ |
15065 | { |
15066 | error_at (clause_loc, "%<aligned%> clause alignment expression must " | |
15067 | "be positive constant integer expression"); | |
15068 | alignment = NULL_TREE; | |
15069 | } | |
953ff289 | 15070 | |
acf0174b JJ |
15071 | for (c = nl; c != list; c = OMP_CLAUSE_CHAIN (c)) |
15072 | OMP_CLAUSE_ALIGNED_ALIGNMENT (c) = alignment; | |
15073 | } | |
15074 | ||
32129a17 | 15075 | parens.skip_until_found_close (parser); |
acf0174b JJ |
15076 | return nl; |
15077 | } | |
15078 | ||
15079 | /* OpenMP 4.0: | |
15080 | linear ( variable-list ) | |
d9a6bd32 JJ |
15081 | linear ( variable-list : expression ) |
15082 | ||
15083 | OpenMP 4.5: | |
15084 | linear ( modifier ( variable-list ) ) | |
15085 | linear ( modifier ( variable-list ) : expression ) */ | |
acf0174b JJ |
15086 | |
15087 | static tree | |
5e9d6aa4 | 15088 | c_parser_omp_clause_linear (c_parser *parser, tree list) |
953ff289 | 15089 | { |
acf0174b JJ |
15090 | location_t clause_loc = c_parser_peek_token (parser)->location; |
15091 | tree nl, c, step; | |
d9a6bd32 | 15092 | enum omp_clause_linear_kind kind = OMP_CLAUSE_LINEAR_DEFAULT; |
acf0174b | 15093 | |
32129a17 DM |
15094 | matching_parens parens; |
15095 | if (!parens.require_open (parser)) | |
acf0174b JJ |
15096 | return list; |
15097 | ||
5e9d6aa4 | 15098 | if (c_parser_next_token_is (parser, CPP_NAME)) |
d9a6bd32 JJ |
15099 | { |
15100 | c_token *tok = c_parser_peek_token (parser); | |
15101 | const char *p = IDENTIFIER_POINTER (tok->value); | |
15102 | if (strcmp ("val", p) == 0) | |
15103 | kind = OMP_CLAUSE_LINEAR_VAL; | |
15104 | if (c_parser_peek_2nd_token (parser)->type != CPP_OPEN_PAREN) | |
15105 | kind = OMP_CLAUSE_LINEAR_DEFAULT; | |
15106 | if (kind != OMP_CLAUSE_LINEAR_DEFAULT) | |
15107 | { | |
15108 | c_parser_consume_token (parser); | |
15109 | c_parser_consume_token (parser); | |
15110 | } | |
15111 | } | |
15112 | ||
acf0174b JJ |
15113 | nl = c_parser_omp_variable_list (parser, clause_loc, |
15114 | OMP_CLAUSE_LINEAR, list); | |
15115 | ||
d9a6bd32 | 15116 | if (kind != OMP_CLAUSE_LINEAR_DEFAULT) |
32129a17 | 15117 | parens.skip_until_found_close (parser); |
d9a6bd32 | 15118 | |
acf0174b JJ |
15119 | if (c_parser_next_token_is (parser, CPP_COLON)) |
15120 | { | |
15121 | c_parser_consume_token (parser); | |
9dc5773f | 15122 | location_t expr_loc = c_parser_peek_token (parser)->location; |
81a227c6 | 15123 | c_expr expr = c_parser_expr_no_commas (parser, NULL); |
9dc5773f JJ |
15124 | expr = convert_lvalue_to_rvalue (expr_loc, expr, false, true); |
15125 | step = expr.value; | |
acf0174b JJ |
15126 | step = c_fully_fold (step, false, NULL); |
15127 | if (!INTEGRAL_TYPE_P (TREE_TYPE (step))) | |
15128 | { | |
15129 | error_at (clause_loc, "%<linear%> clause step expression must " | |
15130 | "be integral"); | |
15131 | step = integer_one_node; | |
15132 | } | |
15133 | ||
15134 | } | |
15135 | else | |
15136 | step = integer_one_node; | |
15137 | ||
15138 | for (c = nl; c != list; c = OMP_CLAUSE_CHAIN (c)) | |
15139 | { | |
15140 | OMP_CLAUSE_LINEAR_STEP (c) = step; | |
d9a6bd32 | 15141 | OMP_CLAUSE_LINEAR_KIND (c) = kind; |
acf0174b JJ |
15142 | } |
15143 | ||
32129a17 | 15144 | parens.skip_until_found_close (parser); |
acf0174b JJ |
15145 | return nl; |
15146 | } | |
15147 | ||
28567c40 JJ |
15148 | /* OpenMP 5.0: |
15149 | nontemporal ( variable-list ) */ | |
15150 | ||
15151 | static tree | |
15152 | c_parser_omp_clause_nontemporal (c_parser *parser, tree list) | |
15153 | { | |
15154 | return c_parser_omp_var_list_parens (parser, OMP_CLAUSE_NONTEMPORAL, list); | |
15155 | } | |
15156 | ||
acf0174b JJ |
15157 | /* OpenMP 4.0: |
15158 | safelen ( constant-expression ) */ | |
15159 | ||
15160 | static tree | |
15161 | c_parser_omp_clause_safelen (c_parser *parser, tree list) | |
15162 | { | |
15163 | location_t clause_loc = c_parser_peek_token (parser)->location; | |
15164 | tree c, t; | |
15165 | ||
32129a17 DM |
15166 | matching_parens parens; |
15167 | if (!parens.require_open (parser)) | |
acf0174b JJ |
15168 | return list; |
15169 | ||
9dc5773f JJ |
15170 | location_t expr_loc = c_parser_peek_token (parser)->location; |
15171 | c_expr expr = c_parser_expr_no_commas (parser, NULL); | |
15172 | expr = convert_lvalue_to_rvalue (expr_loc, expr, false, true); | |
15173 | t = expr.value; | |
acf0174b | 15174 | t = c_fully_fold (t, false, NULL); |
fce5e5e3 JJ |
15175 | if (TREE_CODE (t) != INTEGER_CST |
15176 | || !INTEGRAL_TYPE_P (TREE_TYPE (t)) | |
15177 | || tree_int_cst_sgn (t) != 1) | |
acf0174b JJ |
15178 | { |
15179 | error_at (clause_loc, "%<safelen%> clause expression must " | |
15180 | "be positive constant integer expression"); | |
15181 | t = NULL_TREE; | |
15182 | } | |
15183 | ||
32129a17 | 15184 | parens.skip_until_found_close (parser); |
acf0174b JJ |
15185 | if (t == NULL_TREE || t == error_mark_node) |
15186 | return list; | |
15187 | ||
15188 | check_no_duplicate_clause (list, OMP_CLAUSE_SAFELEN, "safelen"); | |
15189 | ||
15190 | c = build_omp_clause (clause_loc, OMP_CLAUSE_SAFELEN); | |
15191 | OMP_CLAUSE_SAFELEN_EXPR (c) = t; | |
15192 | OMP_CLAUSE_CHAIN (c) = list; | |
15193 | return c; | |
15194 | } | |
15195 | ||
15196 | /* OpenMP 4.0: | |
15197 | simdlen ( constant-expression ) */ | |
15198 | ||
15199 | static tree | |
15200 | c_parser_omp_clause_simdlen (c_parser *parser, tree list) | |
15201 | { | |
15202 | location_t clause_loc = c_parser_peek_token (parser)->location; | |
15203 | tree c, t; | |
15204 | ||
32129a17 DM |
15205 | matching_parens parens; |
15206 | if (!parens.require_open (parser)) | |
acf0174b JJ |
15207 | return list; |
15208 | ||
9dc5773f JJ |
15209 | location_t expr_loc = c_parser_peek_token (parser)->location; |
15210 | c_expr expr = c_parser_expr_no_commas (parser, NULL); | |
15211 | expr = convert_lvalue_to_rvalue (expr_loc, expr, false, true); | |
15212 | t = expr.value; | |
acf0174b | 15213 | t = c_fully_fold (t, false, NULL); |
fce5e5e3 JJ |
15214 | if (TREE_CODE (t) != INTEGER_CST |
15215 | || !INTEGRAL_TYPE_P (TREE_TYPE (t)) | |
15216 | || tree_int_cst_sgn (t) != 1) | |
acf0174b JJ |
15217 | { |
15218 | error_at (clause_loc, "%<simdlen%> clause expression must " | |
15219 | "be positive constant integer expression"); | |
15220 | t = NULL_TREE; | |
15221 | } | |
15222 | ||
32129a17 | 15223 | parens.skip_until_found_close (parser); |
acf0174b JJ |
15224 | if (t == NULL_TREE || t == error_mark_node) |
15225 | return list; | |
15226 | ||
15227 | check_no_duplicate_clause (list, OMP_CLAUSE_SIMDLEN, "simdlen"); | |
15228 | ||
15229 | c = build_omp_clause (clause_loc, OMP_CLAUSE_SIMDLEN); | |
15230 | OMP_CLAUSE_SIMDLEN_EXPR (c) = t; | |
15231 | OMP_CLAUSE_CHAIN (c) = list; | |
15232 | return c; | |
15233 | } | |
15234 | ||
d9a6bd32 JJ |
15235 | /* OpenMP 4.5: |
15236 | vec: | |
15237 | identifier [+/- integer] | |
15238 | vec , identifier [+/- integer] | |
15239 | */ | |
15240 | ||
15241 | static tree | |
15242 | c_parser_omp_clause_depend_sink (c_parser *parser, location_t clause_loc, | |
15243 | tree list) | |
15244 | { | |
15245 | tree vec = NULL; | |
15246 | if (c_parser_next_token_is_not (parser, CPP_NAME) | |
15247 | || c_parser_peek_token (parser)->id_kind != C_ID_ID) | |
15248 | { | |
15249 | c_parser_error (parser, "expected identifier"); | |
15250 | return list; | |
15251 | } | |
15252 | ||
15253 | while (c_parser_next_token_is (parser, CPP_NAME) | |
15254 | && c_parser_peek_token (parser)->id_kind == C_ID_ID) | |
15255 | { | |
15256 | tree t = lookup_name (c_parser_peek_token (parser)->value); | |
15257 | tree addend = NULL; | |
15258 | ||
15259 | if (t == NULL_TREE) | |
15260 | { | |
15261 | undeclared_variable (c_parser_peek_token (parser)->location, | |
15262 | c_parser_peek_token (parser)->value); | |
15263 | t = error_mark_node; | |
15264 | } | |
15265 | ||
15266 | c_parser_consume_token (parser); | |
15267 | ||
15268 | bool neg = false; | |
15269 | if (c_parser_next_token_is (parser, CPP_MINUS)) | |
15270 | neg = true; | |
15271 | else if (!c_parser_next_token_is (parser, CPP_PLUS)) | |
15272 | { | |
15273 | addend = integer_zero_node; | |
15274 | neg = false; | |
15275 | goto add_to_vector; | |
15276 | } | |
15277 | c_parser_consume_token (parser); | |
15278 | ||
15279 | if (c_parser_next_token_is_not (parser, CPP_NUMBER)) | |
15280 | { | |
15281 | c_parser_error (parser, "expected integer"); | |
15282 | return list; | |
15283 | } | |
15284 | ||
15285 | addend = c_parser_peek_token (parser)->value; | |
15286 | if (TREE_CODE (addend) != INTEGER_CST) | |
15287 | { | |
15288 | c_parser_error (parser, "expected integer"); | |
15289 | return list; | |
15290 | } | |
15291 | c_parser_consume_token (parser); | |
15292 | ||
15293 | add_to_vector: | |
15294 | if (t != error_mark_node) | |
15295 | { | |
15296 | vec = tree_cons (addend, t, vec); | |
15297 | if (neg) | |
15298 | OMP_CLAUSE_DEPEND_SINK_NEGATIVE (vec) = 1; | |
15299 | } | |
15300 | ||
15301 | if (c_parser_next_token_is_not (parser, CPP_COMMA)) | |
15302 | break; | |
15303 | ||
15304 | c_parser_consume_token (parser); | |
15305 | } | |
15306 | ||
15307 | if (vec == NULL_TREE) | |
15308 | return list; | |
15309 | ||
15310 | tree u = build_omp_clause (clause_loc, OMP_CLAUSE_DEPEND); | |
15311 | OMP_CLAUSE_DEPEND_KIND (u) = OMP_CLAUSE_DEPEND_SINK; | |
15312 | OMP_CLAUSE_DECL (u) = nreverse (vec); | |
15313 | OMP_CLAUSE_CHAIN (u) = list; | |
15314 | return u; | |
15315 | } | |
15316 | ||
28567c40 JJ |
15317 | /* OpenMP 5.0: |
15318 | iterators ( iterators-definition ) | |
15319 | ||
15320 | iterators-definition: | |
15321 | iterator-specifier | |
15322 | iterator-specifier , iterators-definition | |
15323 | ||
15324 | iterator-specifier: | |
15325 | identifier = range-specification | |
15326 | iterator-type identifier = range-specification | |
15327 | ||
15328 | range-specification: | |
15329 | begin : end | |
15330 | begin : end : step */ | |
15331 | ||
15332 | static tree | |
15333 | c_parser_omp_iterators (c_parser *parser) | |
15334 | { | |
15335 | tree ret = NULL_TREE, *last = &ret; | |
15336 | c_parser_consume_token (parser); | |
15337 | ||
15338 | push_scope (); | |
15339 | ||
15340 | matching_parens parens; | |
15341 | if (!parens.require_open (parser)) | |
15342 | return error_mark_node; | |
15343 | ||
15344 | do | |
15345 | { | |
15346 | tree iter_type = NULL_TREE, type_expr = NULL_TREE; | |
15347 | if (c_parser_next_tokens_start_typename (parser, cla_prefer_id)) | |
15348 | { | |
15349 | struct c_type_name *type = c_parser_type_name (parser); | |
15350 | if (type != NULL) | |
15351 | iter_type = groktypename (type, &type_expr, NULL); | |
15352 | } | |
15353 | if (iter_type == NULL_TREE) | |
15354 | iter_type = integer_type_node; | |
15355 | ||
15356 | location_t loc = c_parser_peek_token (parser)->location; | |
15357 | if (!c_parser_next_token_is (parser, CPP_NAME)) | |
15358 | { | |
15359 | c_parser_error (parser, "expected identifier"); | |
15360 | break; | |
15361 | } | |
15362 | ||
15363 | tree id = c_parser_peek_token (parser)->value; | |
15364 | c_parser_consume_token (parser); | |
15365 | ||
15366 | if (!c_parser_require (parser, CPP_EQ, "expected %<=%>")) | |
15367 | break; | |
15368 | ||
15369 | location_t eloc = c_parser_peek_token (parser)->location; | |
15370 | c_expr expr = c_parser_expr_no_commas (parser, NULL); | |
15371 | expr = convert_lvalue_to_rvalue (eloc, expr, true, false); | |
15372 | tree begin = expr.value; | |
15373 | ||
15374 | if (!c_parser_require (parser, CPP_COLON, "expected %<:%>")) | |
15375 | break; | |
15376 | ||
15377 | eloc = c_parser_peek_token (parser)->location; | |
15378 | expr = c_parser_expr_no_commas (parser, NULL); | |
15379 | expr = convert_lvalue_to_rvalue (eloc, expr, true, false); | |
15380 | tree end = expr.value; | |
15381 | ||
15382 | tree step = integer_one_node; | |
15383 | if (c_parser_next_token_is (parser, CPP_COLON)) | |
15384 | { | |
15385 | c_parser_consume_token (parser); | |
15386 | eloc = c_parser_peek_token (parser)->location; | |
15387 | expr = c_parser_expr_no_commas (parser, NULL); | |
15388 | expr = convert_lvalue_to_rvalue (eloc, expr, true, false); | |
15389 | step = expr.value; | |
15390 | } | |
15391 | ||
15392 | tree iter_var = build_decl (loc, VAR_DECL, id, iter_type); | |
15393 | DECL_ARTIFICIAL (iter_var) = 1; | |
15394 | DECL_CONTEXT (iter_var) = current_function_decl; | |
15395 | pushdecl (iter_var); | |
15396 | ||
15397 | *last = make_tree_vec (6); | |
15398 | TREE_VEC_ELT (*last, 0) = iter_var; | |
15399 | TREE_VEC_ELT (*last, 1) = begin; | |
15400 | TREE_VEC_ELT (*last, 2) = end; | |
15401 | TREE_VEC_ELT (*last, 3) = step; | |
15402 | last = &TREE_CHAIN (*last); | |
15403 | ||
15404 | if (c_parser_next_token_is (parser, CPP_COMMA)) | |
15405 | { | |
15406 | c_parser_consume_token (parser); | |
15407 | continue; | |
15408 | } | |
15409 | break; | |
15410 | } | |
15411 | while (1); | |
15412 | ||
15413 | parens.skip_until_found_close (parser); | |
15414 | return ret ? ret : error_mark_node; | |
15415 | } | |
15416 | ||
acf0174b JJ |
15417 | /* OpenMP 4.0: |
15418 | depend ( depend-kind: variable-list ) | |
15419 | ||
15420 | depend-kind: | |
d9a6bd32 JJ |
15421 | in | out | inout |
15422 | ||
15423 | OpenMP 4.5: | |
15424 | depend ( source ) | |
15425 | ||
28567c40 JJ |
15426 | depend ( sink : vec ) |
15427 | ||
15428 | OpenMP 5.0: | |
15429 | depend ( depend-modifier , depend-kind: variable-list ) | |
15430 | ||
15431 | depend-kind: | |
15432 | in | out | inout | mutexinoutset | depobj | |
15433 | ||
15434 | depend-modifier: | |
15435 | iterator ( iterators-definition ) */ | |
acf0174b JJ |
15436 | |
15437 | static tree | |
15438 | c_parser_omp_clause_depend (c_parser *parser, tree list) | |
15439 | { | |
15440 | location_t clause_loc = c_parser_peek_token (parser)->location; | |
28567c40 JJ |
15441 | enum omp_clause_depend_kind kind = OMP_CLAUSE_DEPEND_LAST; |
15442 | tree nl, c, iterators = NULL_TREE; | |
acf0174b | 15443 | |
32129a17 DM |
15444 | matching_parens parens; |
15445 | if (!parens.require_open (parser)) | |
acf0174b | 15446 | return list; |
953ff289 | 15447 | |
28567c40 | 15448 | do |
20906c66 | 15449 | { |
28567c40 JJ |
15450 | if (c_parser_next_token_is_not (parser, CPP_NAME)) |
15451 | goto invalid_kind; | |
15452 | ||
20906c66 | 15453 | const char *p = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); |
28567c40 JJ |
15454 | if (strcmp ("iterator", p) == 0 && iterators == NULL_TREE) |
15455 | { | |
15456 | iterators = c_parser_omp_iterators (parser); | |
15457 | c_parser_require (parser, CPP_COMMA, "expected %<,%>"); | |
15458 | continue; | |
15459 | } | |
acf0174b JJ |
15460 | if (strcmp ("in", p) == 0) |
15461 | kind = OMP_CLAUSE_DEPEND_IN; | |
15462 | else if (strcmp ("inout", p) == 0) | |
15463 | kind = OMP_CLAUSE_DEPEND_INOUT; | |
28567c40 JJ |
15464 | else if (strcmp ("mutexinoutset", p) == 0) |
15465 | kind = OMP_CLAUSE_DEPEND_MUTEXINOUTSET; | |
acf0174b JJ |
15466 | else if (strcmp ("out", p) == 0) |
15467 | kind = OMP_CLAUSE_DEPEND_OUT; | |
28567c40 JJ |
15468 | else if (strcmp ("depobj", p) == 0) |
15469 | kind = OMP_CLAUSE_DEPEND_DEPOBJ; | |
d9a6bd32 JJ |
15470 | else if (strcmp ("sink", p) == 0) |
15471 | kind = OMP_CLAUSE_DEPEND_SINK; | |
28567c40 JJ |
15472 | else if (strcmp ("source", p) == 0) |
15473 | kind = OMP_CLAUSE_DEPEND_SOURCE; | |
20906c66 | 15474 | else |
acf0174b | 15475 | goto invalid_kind; |
28567c40 | 15476 | break; |
20906c66 | 15477 | } |
28567c40 | 15478 | while (1); |
953ff289 | 15479 | |
acf0174b | 15480 | c_parser_consume_token (parser); |
d9a6bd32 | 15481 | |
28567c40 JJ |
15482 | if (iterators |
15483 | && (kind == OMP_CLAUSE_DEPEND_SOURCE || kind == OMP_CLAUSE_DEPEND_SINK)) | |
15484 | { | |
15485 | pop_scope (); | |
15486 | error_at (clause_loc, "%<iterator%> modifier incompatible with %qs", | |
15487 | kind == OMP_CLAUSE_DEPEND_SOURCE ? "source" : "sink"); | |
15488 | iterators = NULL_TREE; | |
15489 | } | |
15490 | ||
d9a6bd32 JJ |
15491 | if (kind == OMP_CLAUSE_DEPEND_SOURCE) |
15492 | { | |
15493 | c = build_omp_clause (clause_loc, OMP_CLAUSE_DEPEND); | |
15494 | OMP_CLAUSE_DEPEND_KIND (c) = kind; | |
15495 | OMP_CLAUSE_DECL (c) = NULL_TREE; | |
15496 | OMP_CLAUSE_CHAIN (c) = list; | |
32129a17 | 15497 | parens.skip_until_found_close (parser); |
d9a6bd32 JJ |
15498 | return c; |
15499 | } | |
15500 | ||
acf0174b JJ |
15501 | if (!c_parser_require (parser, CPP_COLON, "expected %<:%>")) |
15502 | goto resync_fail; | |
15503 | ||
d9a6bd32 JJ |
15504 | if (kind == OMP_CLAUSE_DEPEND_SINK) |
15505 | nl = c_parser_omp_clause_depend_sink (parser, clause_loc, list); | |
15506 | else | |
15507 | { | |
15508 | nl = c_parser_omp_variable_list (parser, clause_loc, | |
15509 | OMP_CLAUSE_DEPEND, list); | |
acf0174b | 15510 | |
28567c40 JJ |
15511 | if (iterators) |
15512 | { | |
15513 | tree block = pop_scope (); | |
15514 | if (iterators == error_mark_node) | |
15515 | iterators = NULL_TREE; | |
15516 | else | |
15517 | TREE_VEC_ELT (iterators, 5) = block; | |
15518 | } | |
15519 | ||
d9a6bd32 | 15520 | for (c = nl; c != list; c = OMP_CLAUSE_CHAIN (c)) |
28567c40 JJ |
15521 | { |
15522 | OMP_CLAUSE_DEPEND_KIND (c) = kind; | |
15523 | if (iterators) | |
15524 | OMP_CLAUSE_DECL (c) | |
15525 | = build_tree_list (iterators, OMP_CLAUSE_DECL (c)); | |
15526 | } | |
d9a6bd32 | 15527 | } |
acf0174b | 15528 | |
32129a17 | 15529 | parens.skip_until_found_close (parser); |
acf0174b JJ |
15530 | return nl; |
15531 | ||
15532 | invalid_kind: | |
15533 | c_parser_error (parser, "invalid depend kind"); | |
15534 | resync_fail: | |
32129a17 | 15535 | parens.skip_until_found_close (parser); |
28567c40 JJ |
15536 | if (iterators) |
15537 | pop_scope (); | |
acf0174b JJ |
15538 | return list; |
15539 | } | |
15540 | ||
15541 | /* OpenMP 4.0: | |
15542 | map ( map-kind: variable-list ) | |
15543 | map ( variable-list ) | |
15544 | ||
15545 | map-kind: | |
d9a6bd32 JJ |
15546 | alloc | to | from | tofrom |
15547 | ||
15548 | OpenMP 4.5: | |
15549 | map-kind: | |
15550 | alloc | to | from | tofrom | release | delete | |
15551 | ||
15552 | map ( always [,] map-kind: variable-list ) */ | |
acf0174b JJ |
15553 | |
15554 | static tree | |
15555 | c_parser_omp_clause_map (c_parser *parser, tree list) | |
15556 | { | |
15557 | location_t clause_loc = c_parser_peek_token (parser)->location; | |
41dbbb37 | 15558 | enum gomp_map_kind kind = GOMP_MAP_TOFROM; |
d9a6bd32 JJ |
15559 | int always = 0; |
15560 | enum c_id_kind always_id_kind = C_ID_NONE; | |
15561 | location_t always_loc = UNKNOWN_LOCATION; | |
15562 | tree always_id = NULL_TREE; | |
acf0174b JJ |
15563 | tree nl, c; |
15564 | ||
32129a17 DM |
15565 | matching_parens parens; |
15566 | if (!parens.require_open (parser)) | |
acf0174b JJ |
15567 | return list; |
15568 | ||
d9a6bd32 JJ |
15569 | if (c_parser_next_token_is (parser, CPP_NAME)) |
15570 | { | |
15571 | c_token *tok = c_parser_peek_token (parser); | |
15572 | const char *p = IDENTIFIER_POINTER (tok->value); | |
15573 | always_id_kind = tok->id_kind; | |
15574 | always_loc = tok->location; | |
15575 | always_id = tok->value; | |
15576 | if (strcmp ("always", p) == 0) | |
15577 | { | |
15578 | c_token *sectok = c_parser_peek_2nd_token (parser); | |
15579 | if (sectok->type == CPP_COMMA) | |
15580 | { | |
15581 | c_parser_consume_token (parser); | |
15582 | c_parser_consume_token (parser); | |
15583 | always = 2; | |
15584 | } | |
15585 | else if (sectok->type == CPP_NAME) | |
15586 | { | |
15587 | p = IDENTIFIER_POINTER (sectok->value); | |
15588 | if (strcmp ("alloc", p) == 0 | |
15589 | || strcmp ("to", p) == 0 | |
15590 | || strcmp ("from", p) == 0 | |
15591 | || strcmp ("tofrom", p) == 0 | |
15592 | || strcmp ("release", p) == 0 | |
15593 | || strcmp ("delete", p) == 0) | |
15594 | { | |
15595 | c_parser_consume_token (parser); | |
15596 | always = 1; | |
15597 | } | |
15598 | } | |
15599 | } | |
15600 | } | |
15601 | ||
acf0174b JJ |
15602 | if (c_parser_next_token_is (parser, CPP_NAME) |
15603 | && c_parser_peek_2nd_token (parser)->type == CPP_COLON) | |
20906c66 | 15604 | { |
acf0174b JJ |
15605 | const char *p = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); |
15606 | if (strcmp ("alloc", p) == 0) | |
41dbbb37 | 15607 | kind = GOMP_MAP_ALLOC; |
acf0174b | 15608 | else if (strcmp ("to", p) == 0) |
d9a6bd32 | 15609 | kind = always ? GOMP_MAP_ALWAYS_TO : GOMP_MAP_TO; |
acf0174b | 15610 | else if (strcmp ("from", p) == 0) |
d9a6bd32 | 15611 | kind = always ? GOMP_MAP_ALWAYS_FROM : GOMP_MAP_FROM; |
acf0174b | 15612 | else if (strcmp ("tofrom", p) == 0) |
d9a6bd32 JJ |
15613 | kind = always ? GOMP_MAP_ALWAYS_TOFROM : GOMP_MAP_TOFROM; |
15614 | else if (strcmp ("release", p) == 0) | |
15615 | kind = GOMP_MAP_RELEASE; | |
15616 | else if (strcmp ("delete", p) == 0) | |
15617 | kind = GOMP_MAP_DELETE; | |
20906c66 JJ |
15618 | else |
15619 | { | |
acf0174b JJ |
15620 | c_parser_error (parser, "invalid map kind"); |
15621 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, | |
15622 | "expected %<)%>"); | |
15623 | return list; | |
20906c66 | 15624 | } |
acf0174b JJ |
15625 | c_parser_consume_token (parser); |
15626 | c_parser_consume_token (parser); | |
20906c66 | 15627 | } |
d9a6bd32 JJ |
15628 | else if (always) |
15629 | { | |
15630 | if (always_id_kind != C_ID_ID) | |
15631 | { | |
15632 | c_parser_error (parser, "expected identifier"); | |
32129a17 | 15633 | parens.skip_until_found_close (parser); |
d9a6bd32 JJ |
15634 | return list; |
15635 | } | |
15636 | ||
15637 | tree t = lookup_name (always_id); | |
15638 | if (t == NULL_TREE) | |
15639 | { | |
15640 | undeclared_variable (always_loc, always_id); | |
15641 | t = error_mark_node; | |
15642 | } | |
15643 | if (t != error_mark_node) | |
15644 | { | |
15645 | tree u = build_omp_clause (clause_loc, OMP_CLAUSE_MAP); | |
15646 | OMP_CLAUSE_DECL (u) = t; | |
15647 | OMP_CLAUSE_CHAIN (u) = list; | |
15648 | OMP_CLAUSE_SET_MAP_KIND (u, kind); | |
15649 | list = u; | |
15650 | } | |
15651 | if (always == 1) | |
15652 | { | |
32129a17 | 15653 | parens.skip_until_found_close (parser); |
d9a6bd32 JJ |
15654 | return list; |
15655 | } | |
15656 | } | |
20906c66 | 15657 | |
acf0174b JJ |
15658 | nl = c_parser_omp_variable_list (parser, clause_loc, OMP_CLAUSE_MAP, list); |
15659 | ||
15660 | for (c = nl; c != list; c = OMP_CLAUSE_CHAIN (c)) | |
41dbbb37 | 15661 | OMP_CLAUSE_SET_MAP_KIND (c, kind); |
acf0174b | 15662 | |
32129a17 | 15663 | parens.skip_until_found_close (parser); |
acf0174b JJ |
15664 | return nl; |
15665 | } | |
15666 | ||
15667 | /* OpenMP 4.0: | |
15668 | device ( expression ) */ | |
15669 | ||
15670 | static tree | |
15671 | c_parser_omp_clause_device (c_parser *parser, tree list) | |
15672 | { | |
15673 | location_t clause_loc = c_parser_peek_token (parser)->location; | |
32129a17 DM |
15674 | matching_parens parens; |
15675 | if (parens.require_open (parser)) | |
953ff289 | 15676 | { |
9dc5773f JJ |
15677 | location_t expr_loc = c_parser_peek_token (parser)->location; |
15678 | c_expr expr = c_parser_expr_no_commas (parser, NULL); | |
15679 | expr = convert_lvalue_to_rvalue (expr_loc, expr, false, true); | |
15680 | tree c, t = expr.value; | |
acf0174b JJ |
15681 | t = c_fully_fold (t, false, NULL); |
15682 | ||
32129a17 | 15683 | parens.skip_until_found_close (parser); |
acf0174b JJ |
15684 | |
15685 | if (!INTEGRAL_TYPE_P (TREE_TYPE (t))) | |
20906c66 | 15686 | { |
acf0174b JJ |
15687 | c_parser_error (parser, "expected integer expression"); |
15688 | return list; | |
20906c66 | 15689 | } |
953ff289 | 15690 | |
acf0174b | 15691 | check_no_duplicate_clause (list, OMP_CLAUSE_DEVICE, "device"); |
953ff289 | 15692 | |
acf0174b JJ |
15693 | c = build_omp_clause (clause_loc, OMP_CLAUSE_DEVICE); |
15694 | OMP_CLAUSE_DEVICE_ID (c) = t; | |
15695 | OMP_CLAUSE_CHAIN (c) = list; | |
15696 | list = c; | |
15697 | } | |
953ff289 | 15698 | |
acf0174b JJ |
15699 | return list; |
15700 | } | |
15701 | ||
15702 | /* OpenMP 4.0: | |
15703 | dist_schedule ( static ) | |
15704 | dist_schedule ( static , expression ) */ | |
15705 | ||
15706 | static tree | |
15707 | c_parser_omp_clause_dist_schedule (c_parser *parser, tree list) | |
15708 | { | |
15709 | tree c, t = NULL_TREE; | |
15710 | location_t loc = c_parser_peek_token (parser)->location; | |
15711 | ||
32129a17 DM |
15712 | matching_parens parens; |
15713 | if (!parens.require_open (parser)) | |
acf0174b JJ |
15714 | return list; |
15715 | ||
15716 | if (!c_parser_next_token_is_keyword (parser, RID_STATIC)) | |
15717 | { | |
15718 | c_parser_error (parser, "invalid dist_schedule kind"); | |
15719 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, | |
15720 | "expected %<)%>"); | |
15721 | return list; | |
15722 | } | |
15723 | ||
15724 | c_parser_consume_token (parser); | |
15725 | if (c_parser_next_token_is (parser, CPP_COMMA)) | |
15726 | { | |
15727 | c_parser_consume_token (parser); | |
15728 | ||
9dc5773f JJ |
15729 | location_t expr_loc = c_parser_peek_token (parser)->location; |
15730 | c_expr expr = c_parser_expr_no_commas (parser, NULL); | |
15731 | expr = convert_lvalue_to_rvalue (expr_loc, expr, false, true); | |
15732 | t = expr.value; | |
acf0174b | 15733 | t = c_fully_fold (t, false, NULL); |
32129a17 | 15734 | parens.skip_until_found_close (parser); |
acf0174b JJ |
15735 | } |
15736 | else | |
15737 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, | |
15738 | "expected %<,%> or %<)%>"); | |
15739 | ||
2c3b8bad JJ |
15740 | /* check_no_duplicate_clause (list, OMP_CLAUSE_DIST_SCHEDULE, |
15741 | "dist_schedule"); */ | |
15742 | if (omp_find_clause (list, OMP_CLAUSE_DIST_SCHEDULE)) | |
15743 | warning_at (loc, 0, "too many %qs clauses", "dist_schedule"); | |
acf0174b JJ |
15744 | if (t == error_mark_node) |
15745 | return list; | |
15746 | ||
15747 | c = build_omp_clause (loc, OMP_CLAUSE_DIST_SCHEDULE); | |
15748 | OMP_CLAUSE_DIST_SCHEDULE_CHUNK_EXPR (c) = t; | |
15749 | OMP_CLAUSE_CHAIN (c) = list; | |
15750 | return c; | |
15751 | } | |
15752 | ||
15753 | /* OpenMP 4.0: | |
15754 | proc_bind ( proc-bind-kind ) | |
15755 | ||
15756 | proc-bind-kind: | |
15757 | master | close | spread */ | |
15758 | ||
15759 | static tree | |
15760 | c_parser_omp_clause_proc_bind (c_parser *parser, tree list) | |
15761 | { | |
15762 | location_t clause_loc = c_parser_peek_token (parser)->location; | |
15763 | enum omp_clause_proc_bind_kind kind; | |
15764 | tree c; | |
15765 | ||
32129a17 DM |
15766 | matching_parens parens; |
15767 | if (!parens.require_open (parser)) | |
acf0174b JJ |
15768 | return list; |
15769 | ||
15770 | if (c_parser_next_token_is (parser, CPP_NAME)) | |
15771 | { | |
15772 | const char *p = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
15773 | if (strcmp ("master", p) == 0) | |
15774 | kind = OMP_CLAUSE_PROC_BIND_MASTER; | |
15775 | else if (strcmp ("close", p) == 0) | |
15776 | kind = OMP_CLAUSE_PROC_BIND_CLOSE; | |
15777 | else if (strcmp ("spread", p) == 0) | |
15778 | kind = OMP_CLAUSE_PROC_BIND_SPREAD; | |
15779 | else | |
15780 | goto invalid_kind; | |
15781 | } | |
15782 | else | |
15783 | goto invalid_kind; | |
15784 | ||
bb522e2e | 15785 | check_no_duplicate_clause (list, OMP_CLAUSE_PROC_BIND, "proc_bind"); |
acf0174b | 15786 | c_parser_consume_token (parser); |
32129a17 | 15787 | parens.skip_until_found_close (parser); |
acf0174b JJ |
15788 | c = build_omp_clause (clause_loc, OMP_CLAUSE_PROC_BIND); |
15789 | OMP_CLAUSE_PROC_BIND_KIND (c) = kind; | |
15790 | OMP_CLAUSE_CHAIN (c) = list; | |
15791 | return c; | |
15792 | ||
15793 | invalid_kind: | |
15794 | c_parser_error (parser, "invalid proc_bind kind"); | |
32129a17 | 15795 | parens.skip_until_found_close (parser); |
acf0174b JJ |
15796 | return list; |
15797 | } | |
15798 | ||
77eb117f JJ |
15799 | /* OpenMP 5.0: |
15800 | device_type ( host | nohost | any ) */ | |
15801 | ||
15802 | static tree | |
15803 | c_parser_omp_clause_device_type (c_parser *parser, tree list) | |
15804 | { | |
15805 | location_t clause_loc = c_parser_peek_token (parser)->location; | |
15806 | enum omp_clause_device_type_kind kind; | |
15807 | tree c; | |
15808 | ||
15809 | matching_parens parens; | |
15810 | if (!parens.require_open (parser)) | |
15811 | return list; | |
15812 | ||
15813 | if (c_parser_next_token_is (parser, CPP_NAME)) | |
15814 | { | |
15815 | const char *p = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
15816 | if (strcmp ("host", p) == 0) | |
15817 | kind = OMP_CLAUSE_DEVICE_TYPE_HOST; | |
15818 | else if (strcmp ("nohost", p) == 0) | |
15819 | kind = OMP_CLAUSE_DEVICE_TYPE_NOHOST; | |
15820 | else if (strcmp ("any", p) == 0) | |
15821 | kind = OMP_CLAUSE_DEVICE_TYPE_ANY; | |
15822 | else | |
15823 | goto invalid_kind; | |
15824 | } | |
15825 | else | |
15826 | goto invalid_kind; | |
15827 | ||
15828 | /* check_no_duplicate_clause (list, OMP_CLAUSE_DEVICE_TYPE, | |
15829 | "device_type"); */ | |
15830 | c_parser_consume_token (parser); | |
15831 | parens.skip_until_found_close (parser); | |
15832 | c = build_omp_clause (clause_loc, OMP_CLAUSE_DEVICE_TYPE); | |
15833 | OMP_CLAUSE_DEVICE_TYPE_KIND (c) = kind; | |
15834 | OMP_CLAUSE_CHAIN (c) = list; | |
15835 | return c; | |
15836 | ||
15837 | invalid_kind: | |
15838 | c_parser_error (parser, "expected %<host%>, %<nohost%> or %<any%>"); | |
15839 | parens.skip_until_found_close (parser); | |
15840 | return list; | |
15841 | } | |
15842 | ||
acf0174b JJ |
15843 | /* OpenMP 4.0: |
15844 | to ( variable-list ) */ | |
15845 | ||
15846 | static tree | |
15847 | c_parser_omp_clause_to (c_parser *parser, tree list) | |
15848 | { | |
15849 | return c_parser_omp_var_list_parens (parser, OMP_CLAUSE_TO, list); | |
15850 | } | |
15851 | ||
15852 | /* OpenMP 4.0: | |
15853 | from ( variable-list ) */ | |
15854 | ||
15855 | static tree | |
15856 | c_parser_omp_clause_from (c_parser *parser, tree list) | |
15857 | { | |
15858 | return c_parser_omp_var_list_parens (parser, OMP_CLAUSE_FROM, list); | |
15859 | } | |
15860 | ||
15861 | /* OpenMP 4.0: | |
15862 | uniform ( variable-list ) */ | |
15863 | ||
15864 | static tree | |
15865 | c_parser_omp_clause_uniform (c_parser *parser, tree list) | |
15866 | { | |
15867 | /* The clauses location. */ | |
15868 | location_t loc = c_parser_peek_token (parser)->location; | |
15869 | ||
32129a17 DM |
15870 | matching_parens parens; |
15871 | if (parens.require_open (parser)) | |
acf0174b JJ |
15872 | { |
15873 | list = c_parser_omp_variable_list (parser, loc, OMP_CLAUSE_UNIFORM, | |
15874 | list); | |
32129a17 | 15875 | parens.skip_until_found_close (parser); |
acf0174b JJ |
15876 | } |
15877 | return list; | |
15878 | } | |
15879 | ||
41dbbb37 TS |
15880 | /* Parse all OpenACC clauses. The set clauses allowed by the directive |
15881 | is a bitmask in MASK. Return the list of clauses found. */ | |
15882 | ||
15883 | static tree | |
15884 | c_parser_oacc_all_clauses (c_parser *parser, omp_clause_mask mask, | |
15885 | const char *where, bool finish_p = true) | |
15886 | { | |
15887 | tree clauses = NULL; | |
15888 | bool first = true; | |
15889 | ||
15890 | while (c_parser_next_token_is_not (parser, CPP_PRAGMA_EOL)) | |
15891 | { | |
15892 | location_t here; | |
15893 | pragma_omp_clause c_kind; | |
15894 | const char *c_name; | |
15895 | tree prev = clauses; | |
15896 | ||
15897 | if (!first && c_parser_next_token_is (parser, CPP_COMMA)) | |
15898 | c_parser_consume_token (parser); | |
15899 | ||
15900 | here = c_parser_peek_token (parser)->location; | |
15901 | c_kind = c_parser_omp_clause_name (parser); | |
15902 | ||
15903 | switch (c_kind) | |
15904 | { | |
15905 | case PRAGMA_OACC_CLAUSE_ASYNC: | |
15906 | clauses = c_parser_oacc_clause_async (parser, clauses); | |
15907 | c_name = "async"; | |
15908 | break; | |
765dd391 | 15909 | case PRAGMA_OACC_CLAUSE_AUTO: |
2263c9f2 TS |
15910 | clauses = c_parser_oacc_simple_clause (here, OMP_CLAUSE_AUTO, |
15911 | clauses); | |
765dd391 CP |
15912 | c_name = "auto"; |
15913 | break; | |
519d7496 JB |
15914 | case PRAGMA_OACC_CLAUSE_ATTACH: |
15915 | clauses = c_parser_oacc_data_clause (parser, c_kind, clauses); | |
15916 | c_name = "attach"; | |
15917 | break; | |
41dbbb37 TS |
15918 | case PRAGMA_OACC_CLAUSE_COLLAPSE: |
15919 | clauses = c_parser_omp_clause_collapse (parser, clauses); | |
15920 | c_name = "collapse"; | |
15921 | break; | |
15922 | case PRAGMA_OACC_CLAUSE_COPY: | |
15923 | clauses = c_parser_oacc_data_clause (parser, c_kind, clauses); | |
15924 | c_name = "copy"; | |
15925 | break; | |
15926 | case PRAGMA_OACC_CLAUSE_COPYIN: | |
15927 | clauses = c_parser_oacc_data_clause (parser, c_kind, clauses); | |
15928 | c_name = "copyin"; | |
15929 | break; | |
15930 | case PRAGMA_OACC_CLAUSE_COPYOUT: | |
15931 | clauses = c_parser_oacc_data_clause (parser, c_kind, clauses); | |
15932 | c_name = "copyout"; | |
15933 | break; | |
15934 | case PRAGMA_OACC_CLAUSE_CREATE: | |
15935 | clauses = c_parser_oacc_data_clause (parser, c_kind, clauses); | |
15936 | c_name = "create"; | |
15937 | break; | |
15938 | case PRAGMA_OACC_CLAUSE_DELETE: | |
15939 | clauses = c_parser_oacc_data_clause (parser, c_kind, clauses); | |
15940 | c_name = "delete"; | |
15941 | break; | |
7a5e4956 CP |
15942 | case PRAGMA_OMP_CLAUSE_DEFAULT: |
15943 | clauses = c_parser_omp_clause_default (parser, clauses, true); | |
15944 | c_name = "default"; | |
15945 | break; | |
519d7496 JB |
15946 | case PRAGMA_OACC_CLAUSE_DETACH: |
15947 | clauses = c_parser_oacc_data_clause (parser, c_kind, clauses); | |
15948 | c_name = "detach"; | |
15949 | break; | |
41dbbb37 TS |
15950 | case PRAGMA_OACC_CLAUSE_DEVICE: |
15951 | clauses = c_parser_oacc_data_clause (parser, c_kind, clauses); | |
15952 | c_name = "device"; | |
15953 | break; | |
15954 | case PRAGMA_OACC_CLAUSE_DEVICEPTR: | |
15955 | clauses = c_parser_oacc_data_clause_deviceptr (parser, clauses); | |
15956 | c_name = "deviceptr"; | |
15957 | break; | |
6e232ba4 JN |
15958 | case PRAGMA_OACC_CLAUSE_DEVICE_RESIDENT: |
15959 | clauses = c_parser_oacc_data_clause (parser, c_kind, clauses); | |
15960 | c_name = "device_resident"; | |
15961 | break; | |
829c6349 | 15962 | case PRAGMA_OACC_CLAUSE_FINALIZE: |
2263c9f2 | 15963 | clauses = c_parser_oacc_simple_clause (here, OMP_CLAUSE_FINALIZE, |
829c6349 CLT |
15964 | clauses); |
15965 | c_name = "finalize"; | |
15966 | break; | |
41dbbb37 TS |
15967 | case PRAGMA_OACC_CLAUSE_FIRSTPRIVATE: |
15968 | clauses = c_parser_omp_clause_firstprivate (parser, clauses); | |
15969 | c_name = "firstprivate"; | |
15970 | break; | |
765dd391 CP |
15971 | case PRAGMA_OACC_CLAUSE_GANG: |
15972 | c_name = "gang"; | |
2263c9f2 | 15973 | clauses = c_parser_oacc_shape_clause (parser, here, OMP_CLAUSE_GANG, |
765dd391 CP |
15974 | c_name, clauses); |
15975 | break; | |
41dbbb37 TS |
15976 | case PRAGMA_OACC_CLAUSE_HOST: |
15977 | clauses = c_parser_oacc_data_clause (parser, c_kind, clauses); | |
15978 | c_name = "host"; | |
15979 | break; | |
15980 | case PRAGMA_OACC_CLAUSE_IF: | |
d9a6bd32 | 15981 | clauses = c_parser_omp_clause_if (parser, clauses, false); |
41dbbb37 TS |
15982 | c_name = "if"; |
15983 | break; | |
829c6349 | 15984 | case PRAGMA_OACC_CLAUSE_IF_PRESENT: |
2263c9f2 | 15985 | clauses = c_parser_oacc_simple_clause (here, OMP_CLAUSE_IF_PRESENT, |
829c6349 CLT |
15986 | clauses); |
15987 | c_name = "if_present"; | |
15988 | break; | |
7a5e4956 | 15989 | case PRAGMA_OACC_CLAUSE_INDEPENDENT: |
2263c9f2 TS |
15990 | clauses = c_parser_oacc_simple_clause (here, OMP_CLAUSE_INDEPENDENT, |
15991 | clauses); | |
7a5e4956 CP |
15992 | c_name = "independent"; |
15993 | break; | |
6e232ba4 JN |
15994 | case PRAGMA_OACC_CLAUSE_LINK: |
15995 | clauses = c_parser_oacc_data_clause (parser, c_kind, clauses); | |
15996 | c_name = "link"; | |
15997 | break; | |
a6163563 JB |
15998 | case PRAGMA_OACC_CLAUSE_NO_CREATE: |
15999 | clauses = c_parser_oacc_data_clause (parser, c_kind, clauses); | |
16000 | c_name = "no_create"; | |
16001 | break; | |
41dbbb37 | 16002 | case PRAGMA_OACC_CLAUSE_NUM_GANGS: |
1e47f02b TS |
16003 | clauses = c_parser_oacc_single_int_clause (parser, |
16004 | OMP_CLAUSE_NUM_GANGS, | |
16005 | clauses); | |
41dbbb37 TS |
16006 | c_name = "num_gangs"; |
16007 | break; | |
16008 | case PRAGMA_OACC_CLAUSE_NUM_WORKERS: | |
1e47f02b TS |
16009 | clauses = c_parser_oacc_single_int_clause (parser, |
16010 | OMP_CLAUSE_NUM_WORKERS, | |
16011 | clauses); | |
41dbbb37 TS |
16012 | c_name = "num_workers"; |
16013 | break; | |
16014 | case PRAGMA_OACC_CLAUSE_PRESENT: | |
16015 | clauses = c_parser_oacc_data_clause (parser, c_kind, clauses); | |
16016 | c_name = "present"; | |
16017 | break; | |
41dbbb37 TS |
16018 | case PRAGMA_OACC_CLAUSE_PRIVATE: |
16019 | clauses = c_parser_omp_clause_private (parser, clauses); | |
16020 | c_name = "private"; | |
16021 | break; | |
16022 | case PRAGMA_OACC_CLAUSE_REDUCTION: | |
28567c40 JJ |
16023 | clauses |
16024 | = c_parser_omp_clause_reduction (parser, OMP_CLAUSE_REDUCTION, | |
16025 | false, clauses); | |
41dbbb37 TS |
16026 | c_name = "reduction"; |
16027 | break; | |
765dd391 | 16028 | case PRAGMA_OACC_CLAUSE_SEQ: |
2263c9f2 | 16029 | clauses = c_parser_oacc_simple_clause (here, OMP_CLAUSE_SEQ, |
28567c40 | 16030 | clauses); |
765dd391 CP |
16031 | c_name = "seq"; |
16032 | break; | |
7a5e4956 CP |
16033 | case PRAGMA_OACC_CLAUSE_TILE: |
16034 | clauses = c_parser_oacc_clause_tile (parser, clauses); | |
16035 | c_name = "tile"; | |
16036 | break; | |
ff7a55bf | 16037 | case PRAGMA_OACC_CLAUSE_USE_DEVICE: |
c7b48c8a | 16038 | clauses = c_parser_omp_clause_use_device_ptr (parser, clauses); |
ff7a55bf TS |
16039 | c_name = "use_device"; |
16040 | break; | |
765dd391 CP |
16041 | case PRAGMA_OACC_CLAUSE_VECTOR: |
16042 | c_name = "vector"; | |
2263c9f2 | 16043 | clauses = c_parser_oacc_shape_clause (parser, here, OMP_CLAUSE_VECTOR, |
765dd391 CP |
16044 | c_name, clauses); |
16045 | break; | |
41dbbb37 | 16046 | case PRAGMA_OACC_CLAUSE_VECTOR_LENGTH: |
1e47f02b TS |
16047 | clauses = c_parser_oacc_single_int_clause (parser, |
16048 | OMP_CLAUSE_VECTOR_LENGTH, | |
16049 | clauses); | |
41dbbb37 TS |
16050 | c_name = "vector_length"; |
16051 | break; | |
16052 | case PRAGMA_OACC_CLAUSE_WAIT: | |
16053 | clauses = c_parser_oacc_clause_wait (parser, clauses); | |
16054 | c_name = "wait"; | |
16055 | break; | |
765dd391 CP |
16056 | case PRAGMA_OACC_CLAUSE_WORKER: |
16057 | c_name = "worker"; | |
2263c9f2 | 16058 | clauses = c_parser_oacc_shape_clause (parser, here, OMP_CLAUSE_WORKER, |
765dd391 CP |
16059 | c_name, clauses); |
16060 | break; | |
41dbbb37 TS |
16061 | default: |
16062 | c_parser_error (parser, "expected %<#pragma acc%> clause"); | |
16063 | goto saw_error; | |
16064 | } | |
16065 | ||
16066 | first = false; | |
16067 | ||
0bb99c11 | 16068 | if (((mask >> c_kind) & 1) == 0) |
41dbbb37 TS |
16069 | { |
16070 | /* Remove the invalid clause(s) from the list to avoid | |
16071 | confusing the rest of the compiler. */ | |
16072 | clauses = prev; | |
16073 | error_at (here, "%qs is not valid for %qs", c_name, where); | |
16074 | } | |
16075 | } | |
16076 | ||
16077 | saw_error: | |
16078 | c_parser_skip_to_pragma_eol (parser); | |
16079 | ||
16080 | if (finish_p) | |
77886428 | 16081 | return c_finish_omp_clauses (clauses, C_ORT_ACC); |
41dbbb37 TS |
16082 | |
16083 | return clauses; | |
16084 | } | |
16085 | ||
acf0174b | 16086 | /* Parse all OpenMP clauses. The set clauses allowed by the directive |
94e7f906 JJ |
16087 | is a bitmask in MASK. Return the list of clauses found. |
16088 | FINISH_P set if c_finish_omp_clauses should be called. | |
b9424661 JJ |
16089 | NESTED non-zero if clauses should be terminated by closing paren instead |
16090 | of end of pragma. If it is 2, additionally commas are required in between | |
16091 | the clauses. */ | |
acf0174b JJ |
16092 | |
16093 | static tree | |
16094 | c_parser_omp_all_clauses (c_parser *parser, omp_clause_mask mask, | |
94e7f906 | 16095 | const char *where, bool finish_p = true, |
b9424661 | 16096 | int nested = 0) |
acf0174b JJ |
16097 | { |
16098 | tree clauses = NULL; | |
5e9d6aa4 | 16099 | bool first = true; |
acf0174b JJ |
16100 | |
16101 | while (c_parser_next_token_is_not (parser, CPP_PRAGMA_EOL)) | |
16102 | { | |
16103 | location_t here; | |
16104 | pragma_omp_clause c_kind; | |
16105 | const char *c_name; | |
16106 | tree prev = clauses; | |
16107 | ||
b9424661 | 16108 | if (nested && c_parser_next_token_is (parser, CPP_CLOSE_PAREN)) |
94e7f906 JJ |
16109 | break; |
16110 | ||
b9424661 JJ |
16111 | if (!first) |
16112 | { | |
16113 | if (c_parser_next_token_is (parser, CPP_COMMA)) | |
16114 | c_parser_consume_token (parser); | |
16115 | else if (nested == 2) | |
16116 | error_at (c_parser_peek_token (parser)->location, | |
16117 | "clauses in %<simd%> trait should be separated " | |
16118 | "by %<,%>"); | |
16119 | } | |
acf0174b JJ |
16120 | |
16121 | here = c_parser_peek_token (parser)->location; | |
16122 | c_kind = c_parser_omp_clause_name (parser); | |
16123 | ||
16124 | switch (c_kind) | |
953ff289 | 16125 | { |
554a530f JJ |
16126 | case PRAGMA_OMP_CLAUSE_BIND: |
16127 | clauses = c_parser_omp_clause_bind (parser, clauses); | |
16128 | c_name = "bind"; | |
16129 | break; | |
acf0174b JJ |
16130 | case PRAGMA_OMP_CLAUSE_COLLAPSE: |
16131 | clauses = c_parser_omp_clause_collapse (parser, clauses); | |
16132 | c_name = "collapse"; | |
953ff289 | 16133 | break; |
acf0174b JJ |
16134 | case PRAGMA_OMP_CLAUSE_COPYIN: |
16135 | clauses = c_parser_omp_clause_copyin (parser, clauses); | |
16136 | c_name = "copyin"; | |
953ff289 | 16137 | break; |
acf0174b JJ |
16138 | case PRAGMA_OMP_CLAUSE_COPYPRIVATE: |
16139 | clauses = c_parser_omp_clause_copyprivate (parser, clauses); | |
16140 | c_name = "copyprivate"; | |
953ff289 | 16141 | break; |
acf0174b | 16142 | case PRAGMA_OMP_CLAUSE_DEFAULT: |
7a5e4956 | 16143 | clauses = c_parser_omp_clause_default (parser, clauses, false); |
acf0174b | 16144 | c_name = "default"; |
953ff289 | 16145 | break; |
acf0174b JJ |
16146 | case PRAGMA_OMP_CLAUSE_FIRSTPRIVATE: |
16147 | clauses = c_parser_omp_clause_firstprivate (parser, clauses); | |
16148 | c_name = "firstprivate"; | |
953ff289 | 16149 | break; |
acf0174b JJ |
16150 | case PRAGMA_OMP_CLAUSE_FINAL: |
16151 | clauses = c_parser_omp_clause_final (parser, clauses); | |
16152 | c_name = "final"; | |
953ff289 | 16153 | break; |
d9a6bd32 JJ |
16154 | case PRAGMA_OMP_CLAUSE_GRAINSIZE: |
16155 | clauses = c_parser_omp_clause_grainsize (parser, clauses); | |
16156 | c_name = "grainsize"; | |
16157 | break; | |
16158 | case PRAGMA_OMP_CLAUSE_HINT: | |
16159 | clauses = c_parser_omp_clause_hint (parser, clauses); | |
16160 | c_name = "hint"; | |
16161 | break; | |
16162 | case PRAGMA_OMP_CLAUSE_DEFAULTMAP: | |
16163 | clauses = c_parser_omp_clause_defaultmap (parser, clauses); | |
16164 | c_name = "defaultmap"; | |
16165 | break; | |
acf0174b | 16166 | case PRAGMA_OMP_CLAUSE_IF: |
d9a6bd32 | 16167 | clauses = c_parser_omp_clause_if (parser, clauses, true); |
acf0174b | 16168 | c_name = "if"; |
953ff289 | 16169 | break; |
28567c40 JJ |
16170 | case PRAGMA_OMP_CLAUSE_IN_REDUCTION: |
16171 | clauses | |
16172 | = c_parser_omp_clause_reduction (parser, OMP_CLAUSE_IN_REDUCTION, | |
16173 | true, clauses); | |
16174 | c_name = "in_reduction"; | |
16175 | break; | |
acf0174b JJ |
16176 | case PRAGMA_OMP_CLAUSE_LASTPRIVATE: |
16177 | clauses = c_parser_omp_clause_lastprivate (parser, clauses); | |
16178 | c_name = "lastprivate"; | |
953ff289 | 16179 | break; |
acf0174b JJ |
16180 | case PRAGMA_OMP_CLAUSE_MERGEABLE: |
16181 | clauses = c_parser_omp_clause_mergeable (parser, clauses); | |
16182 | c_name = "mergeable"; | |
953ff289 | 16183 | break; |
acf0174b JJ |
16184 | case PRAGMA_OMP_CLAUSE_NOWAIT: |
16185 | clauses = c_parser_omp_clause_nowait (parser, clauses); | |
16186 | c_name = "nowait"; | |
16187 | break; | |
d9a6bd32 JJ |
16188 | case PRAGMA_OMP_CLAUSE_NUM_TASKS: |
16189 | clauses = c_parser_omp_clause_num_tasks (parser, clauses); | |
16190 | c_name = "num_tasks"; | |
16191 | break; | |
acf0174b JJ |
16192 | case PRAGMA_OMP_CLAUSE_NUM_THREADS: |
16193 | clauses = c_parser_omp_clause_num_threads (parser, clauses); | |
16194 | c_name = "num_threads"; | |
16195 | break; | |
1fdd6f04 JJ |
16196 | case PRAGMA_OMP_CLAUSE_ORDER: |
16197 | clauses = c_parser_omp_clause_order (parser, clauses); | |
16198 | c_name = "order"; | |
16199 | break; | |
acf0174b JJ |
16200 | case PRAGMA_OMP_CLAUSE_ORDERED: |
16201 | clauses = c_parser_omp_clause_ordered (parser, clauses); | |
16202 | c_name = "ordered"; | |
16203 | break; | |
d9a6bd32 JJ |
16204 | case PRAGMA_OMP_CLAUSE_PRIORITY: |
16205 | clauses = c_parser_omp_clause_priority (parser, clauses); | |
16206 | c_name = "priority"; | |
16207 | break; | |
acf0174b JJ |
16208 | case PRAGMA_OMP_CLAUSE_PRIVATE: |
16209 | clauses = c_parser_omp_clause_private (parser, clauses); | |
16210 | c_name = "private"; | |
16211 | break; | |
16212 | case PRAGMA_OMP_CLAUSE_REDUCTION: | |
28567c40 JJ |
16213 | clauses |
16214 | = c_parser_omp_clause_reduction (parser, OMP_CLAUSE_REDUCTION, | |
16215 | true, clauses); | |
acf0174b JJ |
16216 | c_name = "reduction"; |
16217 | break; | |
16218 | case PRAGMA_OMP_CLAUSE_SCHEDULE: | |
16219 | clauses = c_parser_omp_clause_schedule (parser, clauses); | |
16220 | c_name = "schedule"; | |
16221 | break; | |
16222 | case PRAGMA_OMP_CLAUSE_SHARED: | |
16223 | clauses = c_parser_omp_clause_shared (parser, clauses); | |
16224 | c_name = "shared"; | |
16225 | break; | |
28567c40 JJ |
16226 | case PRAGMA_OMP_CLAUSE_TASK_REDUCTION: |
16227 | clauses | |
16228 | = c_parser_omp_clause_reduction (parser, OMP_CLAUSE_TASK_REDUCTION, | |
16229 | true, clauses); | |
16230 | c_name = "task_reduction"; | |
16231 | break; | |
acf0174b JJ |
16232 | case PRAGMA_OMP_CLAUSE_UNTIED: |
16233 | clauses = c_parser_omp_clause_untied (parser, clauses); | |
16234 | c_name = "untied"; | |
16235 | break; | |
16236 | case PRAGMA_OMP_CLAUSE_INBRANCH: | |
16237 | clauses = c_parser_omp_clause_branch (parser, OMP_CLAUSE_INBRANCH, | |
16238 | clauses); | |
16239 | c_name = "inbranch"; | |
16240 | break; | |
28567c40 JJ |
16241 | case PRAGMA_OMP_CLAUSE_NONTEMPORAL: |
16242 | clauses = c_parser_omp_clause_nontemporal (parser, clauses); | |
16243 | c_name = "nontemporal"; | |
16244 | break; | |
acf0174b JJ |
16245 | case PRAGMA_OMP_CLAUSE_NOTINBRANCH: |
16246 | clauses = c_parser_omp_clause_branch (parser, OMP_CLAUSE_NOTINBRANCH, | |
16247 | clauses); | |
16248 | c_name = "notinbranch"; | |
16249 | break; | |
16250 | case PRAGMA_OMP_CLAUSE_PARALLEL: | |
16251 | clauses | |
16252 | = c_parser_omp_clause_cancelkind (parser, OMP_CLAUSE_PARALLEL, | |
16253 | clauses); | |
16254 | c_name = "parallel"; | |
16255 | if (!first) | |
20906c66 | 16256 | { |
acf0174b JJ |
16257 | clause_not_first: |
16258 | error_at (here, "%qs must be the first clause of %qs", | |
16259 | c_name, where); | |
16260 | clauses = prev; | |
16261 | } | |
16262 | break; | |
16263 | case PRAGMA_OMP_CLAUSE_FOR: | |
16264 | clauses | |
16265 | = c_parser_omp_clause_cancelkind (parser, OMP_CLAUSE_FOR, | |
16266 | clauses); | |
16267 | c_name = "for"; | |
16268 | if (!first) | |
16269 | goto clause_not_first; | |
16270 | break; | |
16271 | case PRAGMA_OMP_CLAUSE_SECTIONS: | |
16272 | clauses | |
16273 | = c_parser_omp_clause_cancelkind (parser, OMP_CLAUSE_SECTIONS, | |
16274 | clauses); | |
16275 | c_name = "sections"; | |
16276 | if (!first) | |
16277 | goto clause_not_first; | |
16278 | break; | |
16279 | case PRAGMA_OMP_CLAUSE_TASKGROUP: | |
16280 | clauses | |
16281 | = c_parser_omp_clause_cancelkind (parser, OMP_CLAUSE_TASKGROUP, | |
16282 | clauses); | |
16283 | c_name = "taskgroup"; | |
16284 | if (!first) | |
16285 | goto clause_not_first; | |
16286 | break; | |
d9a6bd32 JJ |
16287 | case PRAGMA_OMP_CLAUSE_LINK: |
16288 | clauses | |
16289 | = c_parser_omp_var_list_parens (parser, OMP_CLAUSE_LINK, clauses); | |
16290 | c_name = "link"; | |
16291 | break; | |
acf0174b | 16292 | case PRAGMA_OMP_CLAUSE_TO: |
d9a6bd32 JJ |
16293 | if ((mask & (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_LINK)) != 0) |
16294 | clauses | |
16295 | = c_parser_omp_var_list_parens (parser, OMP_CLAUSE_TO_DECLARE, | |
16296 | clauses); | |
16297 | else | |
16298 | clauses = c_parser_omp_clause_to (parser, clauses); | |
acf0174b JJ |
16299 | c_name = "to"; |
16300 | break; | |
16301 | case PRAGMA_OMP_CLAUSE_FROM: | |
16302 | clauses = c_parser_omp_clause_from (parser, clauses); | |
16303 | c_name = "from"; | |
16304 | break; | |
16305 | case PRAGMA_OMP_CLAUSE_UNIFORM: | |
16306 | clauses = c_parser_omp_clause_uniform (parser, clauses); | |
16307 | c_name = "uniform"; | |
16308 | break; | |
16309 | case PRAGMA_OMP_CLAUSE_NUM_TEAMS: | |
16310 | clauses = c_parser_omp_clause_num_teams (parser, clauses); | |
16311 | c_name = "num_teams"; | |
16312 | break; | |
16313 | case PRAGMA_OMP_CLAUSE_THREAD_LIMIT: | |
16314 | clauses = c_parser_omp_clause_thread_limit (parser, clauses); | |
16315 | c_name = "thread_limit"; | |
16316 | break; | |
16317 | case PRAGMA_OMP_CLAUSE_ALIGNED: | |
16318 | clauses = c_parser_omp_clause_aligned (parser, clauses); | |
16319 | c_name = "aligned"; | |
16320 | break; | |
41958c28 | 16321 | case PRAGMA_OMP_CLAUSE_LINEAR: |
5e9d6aa4 | 16322 | clauses = c_parser_omp_clause_linear (parser, clauses); |
acf0174b JJ |
16323 | c_name = "linear"; |
16324 | break; | |
16325 | case PRAGMA_OMP_CLAUSE_DEPEND: | |
16326 | clauses = c_parser_omp_clause_depend (parser, clauses); | |
16327 | c_name = "depend"; | |
16328 | break; | |
16329 | case PRAGMA_OMP_CLAUSE_MAP: | |
16330 | clauses = c_parser_omp_clause_map (parser, clauses); | |
16331 | c_name = "map"; | |
16332 | break; | |
d9a6bd32 JJ |
16333 | case PRAGMA_OMP_CLAUSE_USE_DEVICE_PTR: |
16334 | clauses = c_parser_omp_clause_use_device_ptr (parser, clauses); | |
16335 | c_name = "use_device_ptr"; | |
16336 | break; | |
398e3feb JJ |
16337 | case PRAGMA_OMP_CLAUSE_USE_DEVICE_ADDR: |
16338 | clauses = c_parser_omp_clause_use_device_addr (parser, clauses); | |
16339 | c_name = "use_device_addr"; | |
16340 | break; | |
d9a6bd32 JJ |
16341 | case PRAGMA_OMP_CLAUSE_IS_DEVICE_PTR: |
16342 | clauses = c_parser_omp_clause_is_device_ptr (parser, clauses); | |
16343 | c_name = "is_device_ptr"; | |
16344 | break; | |
acf0174b JJ |
16345 | case PRAGMA_OMP_CLAUSE_DEVICE: |
16346 | clauses = c_parser_omp_clause_device (parser, clauses); | |
16347 | c_name = "device"; | |
16348 | break; | |
16349 | case PRAGMA_OMP_CLAUSE_DIST_SCHEDULE: | |
16350 | clauses = c_parser_omp_clause_dist_schedule (parser, clauses); | |
16351 | c_name = "dist_schedule"; | |
16352 | break; | |
16353 | case PRAGMA_OMP_CLAUSE_PROC_BIND: | |
16354 | clauses = c_parser_omp_clause_proc_bind (parser, clauses); | |
16355 | c_name = "proc_bind"; | |
16356 | break; | |
77eb117f JJ |
16357 | case PRAGMA_OMP_CLAUSE_DEVICE_TYPE: |
16358 | clauses = c_parser_omp_clause_device_type (parser, clauses); | |
16359 | c_name = "device_type"; | |
16360 | break; | |
acf0174b JJ |
16361 | case PRAGMA_OMP_CLAUSE_SAFELEN: |
16362 | clauses = c_parser_omp_clause_safelen (parser, clauses); | |
16363 | c_name = "safelen"; | |
16364 | break; | |
16365 | case PRAGMA_OMP_CLAUSE_SIMDLEN: | |
16366 | clauses = c_parser_omp_clause_simdlen (parser, clauses); | |
16367 | c_name = "simdlen"; | |
16368 | break; | |
d9a6bd32 JJ |
16369 | case PRAGMA_OMP_CLAUSE_NOGROUP: |
16370 | clauses = c_parser_omp_clause_nogroup (parser, clauses); | |
16371 | c_name = "nogroup"; | |
16372 | break; | |
16373 | case PRAGMA_OMP_CLAUSE_THREADS: | |
16374 | clauses | |
16375 | = c_parser_omp_clause_orderedkind (parser, OMP_CLAUSE_THREADS, | |
16376 | clauses); | |
16377 | c_name = "threads"; | |
16378 | break; | |
16379 | case PRAGMA_OMP_CLAUSE_SIMD: | |
16380 | clauses | |
16381 | = c_parser_omp_clause_orderedkind (parser, OMP_CLAUSE_SIMD, | |
16382 | clauses); | |
16383 | c_name = "simd"; | |
16384 | break; | |
953ff289 | 16385 | default: |
acf0174b | 16386 | c_parser_error (parser, "expected %<#pragma omp%> clause"); |
953ff289 DN |
16387 | goto saw_error; |
16388 | } | |
16389 | ||
acf0174b JJ |
16390 | first = false; |
16391 | ||
0bb99c11 | 16392 | if (((mask >> c_kind) & 1) == 0) |
acf0174b JJ |
16393 | { |
16394 | /* Remove the invalid clause(s) from the list to avoid | |
16395 | confusing the rest of the compiler. */ | |
16396 | clauses = prev; | |
16397 | error_at (here, "%qs is not valid for %qs", c_name, where); | |
16398 | } | |
16399 | } | |
16400 | ||
16401 | saw_error: | |
b9424661 | 16402 | if (!nested) |
94e7f906 | 16403 | c_parser_skip_to_pragma_eol (parser); |
acf0174b JJ |
16404 | |
16405 | if (finish_p) | |
d9a6bd32 JJ |
16406 | { |
16407 | if ((mask & (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_UNIFORM)) != 0) | |
77886428 CP |
16408 | return c_finish_omp_clauses (clauses, C_ORT_OMP_DECLARE_SIMD); |
16409 | return c_finish_omp_clauses (clauses, C_ORT_OMP); | |
d9a6bd32 | 16410 | } |
acf0174b JJ |
16411 | |
16412 | return clauses; | |
16413 | } | |
16414 | ||
41dbbb37 | 16415 | /* OpenACC 2.0, OpenMP 2.5: |
acf0174b JJ |
16416 | structured-block: |
16417 | statement | |
16418 | ||
16419 | In practice, we're also interested in adding the statement to an | |
16420 | outer node. So it is convenient if we work around the fact that | |
16421 | c_parser_statement calls add_stmt. */ | |
16422 | ||
16423 | static tree | |
dda1bf61 | 16424 | c_parser_omp_structured_block (c_parser *parser, bool *if_p) |
acf0174b JJ |
16425 | { |
16426 | tree stmt = push_stmt_list (); | |
dda1bf61 | 16427 | c_parser_statement (parser, if_p); |
acf0174b JJ |
16428 | return pop_stmt_list (stmt); |
16429 | } | |
16430 | ||
41dbbb37 TS |
16431 | /* OpenACC 2.0: |
16432 | # pragma acc cache (variable-list) new-line | |
16433 | ||
16434 | LOC is the location of the #pragma token. | |
16435 | */ | |
16436 | ||
16437 | static tree | |
16438 | c_parser_oacc_cache (location_t loc, c_parser *parser) | |
16439 | { | |
16440 | tree stmt, clauses; | |
16441 | ||
16442 | clauses = c_parser_omp_var_list_parens (parser, OMP_CLAUSE__CACHE_, NULL); | |
77886428 | 16443 | clauses = c_finish_omp_clauses (clauses, C_ORT_ACC); |
41dbbb37 TS |
16444 | |
16445 | c_parser_skip_to_pragma_eol (parser); | |
16446 | ||
16447 | stmt = make_node (OACC_CACHE); | |
16448 | TREE_TYPE (stmt) = void_type_node; | |
16449 | OACC_CACHE_CLAUSES (stmt) = clauses; | |
16450 | SET_EXPR_LOCATION (stmt, loc); | |
16451 | add_stmt (stmt); | |
16452 | ||
16453 | return stmt; | |
16454 | } | |
16455 | ||
16456 | /* OpenACC 2.0: | |
16457 | # pragma acc data oacc-data-clause[optseq] new-line | |
16458 | structured-block | |
16459 | ||
16460 | LOC is the location of the #pragma token. | |
16461 | */ | |
16462 | ||
16463 | #define OACC_DATA_CLAUSE_MASK \ | |
519d7496 JB |
16464 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_ATTACH) \ |
16465 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_COPY) \ | |
41dbbb37 TS |
16466 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_COPYIN) \ |
16467 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_COPYOUT) \ | |
16468 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_CREATE) \ | |
16469 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_DEVICEPTR) \ | |
16470 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_IF) \ | |
a6163563 | 16471 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_NO_CREATE) \ |
829c6349 | 16472 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_PRESENT)) |
41dbbb37 TS |
16473 | |
16474 | static tree | |
dda1bf61 | 16475 | c_parser_oacc_data (location_t loc, c_parser *parser, bool *if_p) |
41dbbb37 TS |
16476 | { |
16477 | tree stmt, clauses, block; | |
16478 | ||
16479 | clauses = c_parser_oacc_all_clauses (parser, OACC_DATA_CLAUSE_MASK, | |
16480 | "#pragma acc data"); | |
16481 | ||
16482 | block = c_begin_omp_parallel (); | |
dda1bf61 | 16483 | add_stmt (c_parser_omp_structured_block (parser, if_p)); |
41dbbb37 TS |
16484 | |
16485 | stmt = c_finish_oacc_data (loc, clauses, block); | |
16486 | ||
16487 | return stmt; | |
16488 | } | |
16489 | ||
6e232ba4 JN |
16490 | /* OpenACC 2.0: |
16491 | # pragma acc declare oacc-data-clause[optseq] new-line | |
16492 | */ | |
16493 | ||
16494 | #define OACC_DECLARE_CLAUSE_MASK \ | |
16495 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_COPY) \ | |
16496 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_COPYIN) \ | |
16497 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_COPYOUT) \ | |
16498 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_CREATE) \ | |
16499 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_DEVICEPTR) \ | |
16500 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_DEVICE_RESIDENT) \ | |
16501 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_LINK) \ | |
829c6349 | 16502 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_PRESENT)) |
6e232ba4 JN |
16503 | |
16504 | static void | |
16505 | c_parser_oacc_declare (c_parser *parser) | |
16506 | { | |
16507 | location_t pragma_loc = c_parser_peek_token (parser)->location; | |
16508 | tree clauses, stmt, t, decl; | |
16509 | ||
16510 | bool error = false; | |
16511 | ||
16512 | c_parser_consume_pragma (parser); | |
16513 | ||
16514 | clauses = c_parser_oacc_all_clauses (parser, OACC_DECLARE_CLAUSE_MASK, | |
16515 | "#pragma acc declare"); | |
16516 | if (!clauses) | |
16517 | { | |
16518 | error_at (pragma_loc, | |
16519 | "no valid clauses specified in %<#pragma acc declare%>"); | |
16520 | return; | |
16521 | } | |
16522 | ||
16523 | for (t = clauses; t; t = OMP_CLAUSE_CHAIN (t)) | |
16524 | { | |
16525 | location_t loc = OMP_CLAUSE_LOCATION (t); | |
16526 | decl = OMP_CLAUSE_DECL (t); | |
16527 | if (!DECL_P (decl)) | |
16528 | { | |
16529 | error_at (loc, "array section in %<#pragma acc declare%>"); | |
16530 | error = true; | |
16531 | continue; | |
16532 | } | |
16533 | ||
16534 | switch (OMP_CLAUSE_MAP_KIND (t)) | |
16535 | { | |
e46c7770 | 16536 | case GOMP_MAP_FIRSTPRIVATE_POINTER: |
829c6349 CLT |
16537 | case GOMP_MAP_ALLOC: |
16538 | case GOMP_MAP_TO: | |
6e232ba4 JN |
16539 | case GOMP_MAP_FORCE_DEVICEPTR: |
16540 | case GOMP_MAP_DEVICE_RESIDENT: | |
16541 | break; | |
16542 | ||
6e232ba4 JN |
16543 | case GOMP_MAP_LINK: |
16544 | if (!global_bindings_p () | |
16545 | && (TREE_STATIC (decl) | |
16546 | || !DECL_EXTERNAL (decl))) | |
16547 | { | |
16548 | error_at (loc, | |
aa326bfb | 16549 | "%qD must be a global variable in " |
6e232ba4 JN |
16550 | "%<#pragma acc declare link%>", |
16551 | decl); | |
16552 | error = true; | |
16553 | continue; | |
16554 | } | |
16555 | break; | |
16556 | ||
16557 | default: | |
16558 | if (global_bindings_p ()) | |
16559 | { | |
16560 | error_at (loc, "invalid OpenACC clause at file scope"); | |
16561 | error = true; | |
16562 | continue; | |
16563 | } | |
16564 | if (DECL_EXTERNAL (decl)) | |
16565 | { | |
16566 | error_at (loc, | |
16567 | "invalid use of %<extern%> variable %qD " | |
16568 | "in %<#pragma acc declare%>", decl); | |
16569 | error = true; | |
16570 | continue; | |
16571 | } | |
16572 | else if (TREE_PUBLIC (decl)) | |
16573 | { | |
16574 | error_at (loc, | |
16575 | "invalid use of %<global%> variable %qD " | |
16576 | "in %<#pragma acc declare%>", decl); | |
16577 | error = true; | |
16578 | continue; | |
16579 | } | |
16580 | break; | |
16581 | } | |
16582 | ||
16583 | if (lookup_attribute ("omp declare target", DECL_ATTRIBUTES (decl)) | |
16584 | || lookup_attribute ("omp declare target link", | |
16585 | DECL_ATTRIBUTES (decl))) | |
16586 | { | |
16587 | error_at (loc, "variable %qD used more than once with " | |
16588 | "%<#pragma acc declare%>", decl); | |
16589 | error = true; | |
16590 | continue; | |
16591 | } | |
16592 | ||
16593 | if (!error) | |
16594 | { | |
16595 | tree id; | |
16596 | ||
16597 | if (OMP_CLAUSE_MAP_KIND (t) == GOMP_MAP_LINK) | |
16598 | id = get_identifier ("omp declare target link"); | |
16599 | else | |
16600 | id = get_identifier ("omp declare target"); | |
16601 | ||
16602 | DECL_ATTRIBUTES (decl) | |
16603 | = tree_cons (id, NULL_TREE, DECL_ATTRIBUTES (decl)); | |
16604 | ||
16605 | if (global_bindings_p ()) | |
16606 | { | |
16607 | symtab_node *node = symtab_node::get (decl); | |
16608 | if (node != NULL) | |
16609 | { | |
16610 | node->offloadable = 1; | |
688c4de0 | 16611 | if (ENABLE_OFFLOADING) |
6e232ba4 | 16612 | { |
688c4de0 IV |
16613 | g->have_offload = true; |
16614 | if (is_a <varpool_node *> (node)) | |
e6d6ec9e | 16615 | vec_safe_push (offload_vars, decl); |
6e232ba4 | 16616 | } |
6e232ba4 JN |
16617 | } |
16618 | } | |
16619 | } | |
16620 | } | |
16621 | ||
16622 | if (error || global_bindings_p ()) | |
16623 | return; | |
16624 | ||
16625 | stmt = make_node (OACC_DECLARE); | |
16626 | TREE_TYPE (stmt) = void_type_node; | |
16627 | OACC_DECLARE_CLAUSES (stmt) = clauses; | |
16628 | SET_EXPR_LOCATION (stmt, pragma_loc); | |
16629 | ||
16630 | add_stmt (stmt); | |
16631 | ||
16632 | return; | |
16633 | } | |
16634 | ||
41dbbb37 TS |
16635 | /* OpenACC 2.0: |
16636 | # pragma acc enter data oacc-enter-data-clause[optseq] new-line | |
16637 | ||
16638 | or | |
16639 | ||
16640 | # pragma acc exit data oacc-exit-data-clause[optseq] new-line | |
16641 | ||
16642 | ||
16643 | LOC is the location of the #pragma token. | |
16644 | */ | |
16645 | ||
16646 | #define OACC_ENTER_DATA_CLAUSE_MASK \ | |
16647 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_IF) \ | |
16648 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_ASYNC) \ | |
519d7496 | 16649 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_ATTACH) \ |
41dbbb37 TS |
16650 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_COPYIN) \ |
16651 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_CREATE) \ | |
41dbbb37 TS |
16652 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_WAIT) ) |
16653 | ||
16654 | #define OACC_EXIT_DATA_CLAUSE_MASK \ | |
16655 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_IF) \ | |
16656 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_ASYNC) \ | |
16657 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_COPYOUT) \ | |
16658 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_DELETE) \ | |
519d7496 | 16659 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_DETACH) \ |
829c6349 | 16660 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_FINALIZE) \ |
41dbbb37 TS |
16661 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_WAIT) ) |
16662 | ||
16663 | static void | |
16664 | c_parser_oacc_enter_exit_data (c_parser *parser, bool enter) | |
16665 | { | |
16666 | location_t loc = c_parser_peek_token (parser)->location; | |
16667 | tree clauses, stmt; | |
c5af52eb | 16668 | const char *p = ""; |
41dbbb37 TS |
16669 | |
16670 | c_parser_consume_pragma (parser); | |
16671 | ||
c5af52eb | 16672 | if (c_parser_next_token_is (parser, CPP_NAME)) |
41dbbb37 | 16673 | { |
c5af52eb CP |
16674 | p = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); |
16675 | c_parser_consume_token (parser); | |
41dbbb37 TS |
16676 | } |
16677 | ||
41dbbb37 TS |
16678 | if (strcmp (p, "data") != 0) |
16679 | { | |
324ff1a0 JJ |
16680 | error_at (loc, "expected %<data%> after %<#pragma acc %s%>", |
16681 | enter ? "enter" : "exit"); | |
c5af52eb | 16682 | parser->error = true; |
41dbbb37 TS |
16683 | c_parser_skip_to_pragma_eol (parser); |
16684 | return; | |
16685 | } | |
16686 | ||
41dbbb37 TS |
16687 | if (enter) |
16688 | clauses = c_parser_oacc_all_clauses (parser, OACC_ENTER_DATA_CLAUSE_MASK, | |
16689 | "#pragma acc enter data"); | |
16690 | else | |
16691 | clauses = c_parser_oacc_all_clauses (parser, OACC_EXIT_DATA_CLAUSE_MASK, | |
16692 | "#pragma acc exit data"); | |
16693 | ||
629b3d75 | 16694 | if (omp_find_clause (clauses, OMP_CLAUSE_MAP) == NULL_TREE) |
41dbbb37 | 16695 | { |
324ff1a0 JJ |
16696 | error_at (loc, "%<#pragma acc %s data%> has no data movement clause", |
16697 | enter ? "enter" : "exit"); | |
41dbbb37 TS |
16698 | return; |
16699 | } | |
16700 | ||
06aca1d5 | 16701 | stmt = enter ? make_node (OACC_ENTER_DATA) : make_node (OACC_EXIT_DATA); |
41dbbb37 | 16702 | TREE_TYPE (stmt) = void_type_node; |
b811915d | 16703 | OMP_STANDALONE_CLAUSES (stmt) = clauses; |
41dbbb37 TS |
16704 | SET_EXPR_LOCATION (stmt, loc); |
16705 | add_stmt (stmt); | |
16706 | } | |
16707 | ||
16708 | ||
37d5ad46 JB |
16709 | /* OpenACC 2.0: |
16710 | # pragma acc host_data oacc-data-clause[optseq] new-line | |
16711 | structured-block | |
16712 | */ | |
16713 | ||
16714 | #define OACC_HOST_DATA_CLAUSE_MASK \ | |
d5c23c6c TB |
16715 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_USE_DEVICE) \ |
16716 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_IF) \ | |
16717 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_IF_PRESENT) ) | |
37d5ad46 JB |
16718 | |
16719 | static tree | |
dda1bf61 | 16720 | c_parser_oacc_host_data (location_t loc, c_parser *parser, bool *if_p) |
37d5ad46 JB |
16721 | { |
16722 | tree stmt, clauses, block; | |
16723 | ||
16724 | clauses = c_parser_oacc_all_clauses (parser, OACC_HOST_DATA_CLAUSE_MASK, | |
16725 | "#pragma acc host_data"); | |
16726 | ||
16727 | block = c_begin_omp_parallel (); | |
dda1bf61 | 16728 | add_stmt (c_parser_omp_structured_block (parser, if_p)); |
37d5ad46 JB |
16729 | stmt = c_finish_oacc_host_data (loc, clauses, block); |
16730 | return stmt; | |
16731 | } | |
16732 | ||
16733 | ||
41dbbb37 TS |
16734 | /* OpenACC 2.0: |
16735 | ||
16736 | # pragma acc loop oacc-loop-clause[optseq] new-line | |
16737 | structured-block | |
16738 | ||
16739 | LOC is the location of the #pragma token. | |
16740 | */ | |
16741 | ||
16742 | #define OACC_LOOP_CLAUSE_MASK \ | |
16743 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_COLLAPSE) \ | |
7a5e4956 CP |
16744 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_PRIVATE) \ |
16745 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_REDUCTION) \ | |
765dd391 CP |
16746 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_GANG) \ |
16747 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_WORKER) \ | |
16748 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_VECTOR) \ | |
16749 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_AUTO) \ | |
7a5e4956 | 16750 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_INDEPENDENT) \ |
765dd391 | 16751 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_SEQ) \ |
7a5e4956 | 16752 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_TILE) ) |
41dbbb37 | 16753 | static tree |
88bae6f4 | 16754 | c_parser_oacc_loop (location_t loc, c_parser *parser, char *p_name, |
dda1bf61 | 16755 | omp_clause_mask mask, tree *cclauses, bool *if_p) |
41dbbb37 | 16756 | { |
e7ff0319 CP |
16757 | bool is_parallel = ((mask >> PRAGMA_OACC_CLAUSE_REDUCTION) & 1) == 1; |
16758 | ||
41dbbb37 | 16759 | strcat (p_name, " loop"); |
88bae6f4 | 16760 | mask |= OACC_LOOP_CLAUSE_MASK; |
41dbbb37 | 16761 | |
88bae6f4 TS |
16762 | tree clauses = c_parser_oacc_all_clauses (parser, mask, p_name, |
16763 | cclauses == NULL); | |
16764 | if (cclauses) | |
16765 | { | |
e7ff0319 | 16766 | clauses = c_oacc_split_loop_clauses (clauses, cclauses, is_parallel); |
88bae6f4 | 16767 | if (*cclauses) |
77886428 | 16768 | *cclauses = c_finish_omp_clauses (*cclauses, C_ORT_ACC); |
88bae6f4 | 16769 | if (clauses) |
77886428 | 16770 | clauses = c_finish_omp_clauses (clauses, C_ORT_ACC); |
88bae6f4 | 16771 | } |
41dbbb37 | 16772 | |
88bae6f4 | 16773 | tree block = c_begin_compound_stmt (true); |
dda1bf61 JJ |
16774 | tree stmt = c_parser_omp_for_loop (loc, parser, OACC_LOOP, clauses, NULL, |
16775 | if_p); | |
41dbbb37 TS |
16776 | block = c_end_compound_stmt (loc, block, true); |
16777 | add_stmt (block); | |
16778 | ||
16779 | return stmt; | |
16780 | } | |
16781 | ||
16782 | /* OpenACC 2.0: | |
88bae6f4 TS |
16783 | # pragma acc kernels oacc-kernels-clause[optseq] new-line |
16784 | structured-block | |
16785 | ||
16786 | or | |
16787 | ||
41dbbb37 TS |
16788 | # pragma acc parallel oacc-parallel-clause[optseq] new-line |
16789 | structured-block | |
16790 | ||
62aee289 MR |
16791 | OpenACC 2.6: |
16792 | ||
16793 | # pragma acc serial oacc-serial-clause[optseq] new-line | |
16794 | structured-block | |
16795 | ||
41dbbb37 TS |
16796 | LOC is the location of the #pragma token. |
16797 | */ | |
16798 | ||
88bae6f4 TS |
16799 | #define OACC_KERNELS_CLAUSE_MASK \ |
16800 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_ASYNC) \ | |
519d7496 | 16801 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_ATTACH) \ |
88bae6f4 TS |
16802 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_COPY) \ |
16803 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_COPYIN) \ | |
16804 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_COPYOUT) \ | |
16805 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_CREATE) \ | |
7a5e4956 | 16806 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_DEFAULT) \ |
88bae6f4 TS |
16807 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_DEVICEPTR) \ |
16808 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_IF) \ | |
a6163563 | 16809 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_NO_CREATE) \ |
fd71a9a2 TS |
16810 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_NUM_GANGS) \ |
16811 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_NUM_WORKERS) \ | |
88bae6f4 | 16812 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_PRESENT) \ |
fd71a9a2 | 16813 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_VECTOR_LENGTH) \ |
88bae6f4 TS |
16814 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_WAIT) ) |
16815 | ||
41dbbb37 TS |
16816 | #define OACC_PARALLEL_CLAUSE_MASK \ |
16817 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_ASYNC) \ | |
519d7496 | 16818 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_ATTACH) \ |
41dbbb37 TS |
16819 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_COPY) \ |
16820 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_COPYIN) \ | |
16821 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_COPYOUT) \ | |
16822 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_CREATE) \ | |
7a5e4956 | 16823 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_DEFAULT) \ |
41dbbb37 TS |
16824 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_DEVICEPTR) \ |
16825 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_IF) \ | |
a6163563 | 16826 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_NO_CREATE) \ |
7a5e4956 CP |
16827 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_PRIVATE) \ |
16828 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_FIRSTPRIVATE) \ | |
41dbbb37 TS |
16829 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_NUM_GANGS) \ |
16830 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_NUM_WORKERS) \ | |
16831 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_PRESENT) \ | |
41dbbb37 TS |
16832 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_REDUCTION) \ |
16833 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_VECTOR_LENGTH) \ | |
16834 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_WAIT) ) | |
16835 | ||
62aee289 MR |
16836 | #define OACC_SERIAL_CLAUSE_MASK \ |
16837 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_ASYNC) \ | |
519d7496 | 16838 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_ATTACH) \ |
62aee289 MR |
16839 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_COPY) \ |
16840 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_COPYIN) \ | |
16841 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_COPYOUT) \ | |
16842 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_CREATE) \ | |
16843 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_DEFAULT) \ | |
16844 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_DEVICEPTR) \ | |
16845 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_IF) \ | |
a6163563 | 16846 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_NO_CREATE) \ |
62aee289 MR |
16847 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_PRIVATE) \ |
16848 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_FIRSTPRIVATE) \ | |
16849 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_PRESENT) \ | |
16850 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_REDUCTION) \ | |
16851 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_WAIT) ) | |
16852 | ||
41dbbb37 | 16853 | static tree |
62aee289 MR |
16854 | c_parser_oacc_compute (location_t loc, c_parser *parser, |
16855 | enum pragma_kind p_kind, char *p_name, bool *if_p) | |
41dbbb37 | 16856 | { |
88bae6f4 TS |
16857 | omp_clause_mask mask; |
16858 | enum tree_code code; | |
16859 | switch (p_kind) | |
16860 | { | |
16861 | case PRAGMA_OACC_KERNELS: | |
16862 | strcat (p_name, " kernels"); | |
16863 | mask = OACC_KERNELS_CLAUSE_MASK; | |
16864 | code = OACC_KERNELS; | |
16865 | break; | |
16866 | case PRAGMA_OACC_PARALLEL: | |
16867 | strcat (p_name, " parallel"); | |
16868 | mask = OACC_PARALLEL_CLAUSE_MASK; | |
16869 | code = OACC_PARALLEL; | |
16870 | break; | |
62aee289 MR |
16871 | case PRAGMA_OACC_SERIAL: |
16872 | strcat (p_name, " serial"); | |
16873 | mask = OACC_SERIAL_CLAUSE_MASK; | |
16874 | code = OACC_SERIAL; | |
16875 | break; | |
88bae6f4 TS |
16876 | default: |
16877 | gcc_unreachable (); | |
16878 | } | |
41dbbb37 TS |
16879 | |
16880 | if (c_parser_next_token_is (parser, CPP_NAME)) | |
16881 | { | |
16882 | const char *p = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
16883 | if (strcmp (p, "loop") == 0) | |
16884 | { | |
16885 | c_parser_consume_token (parser); | |
88bae6f4 TS |
16886 | tree block = c_begin_omp_parallel (); |
16887 | tree clauses; | |
dda1bf61 | 16888 | c_parser_oacc_loop (loc, parser, p_name, mask, &clauses, if_p); |
88bae6f4 | 16889 | return c_finish_omp_construct (loc, code, block, clauses); |
41dbbb37 TS |
16890 | } |
16891 | } | |
16892 | ||
88bae6f4 | 16893 | tree clauses = c_parser_oacc_all_clauses (parser, mask, p_name); |
41dbbb37 | 16894 | |
88bae6f4 | 16895 | tree block = c_begin_omp_parallel (); |
dda1bf61 | 16896 | add_stmt (c_parser_omp_structured_block (parser, if_p)); |
41dbbb37 | 16897 | |
88bae6f4 | 16898 | return c_finish_omp_construct (loc, code, block, clauses); |
41dbbb37 TS |
16899 | } |
16900 | ||
3a40d81d NS |
16901 | /* OpenACC 2.0: |
16902 | # pragma acc routine oacc-routine-clause[optseq] new-line | |
16903 | function-definition | |
16904 | ||
16905 | # pragma acc routine ( name ) oacc-routine-clause[optseq] new-line | |
16906 | */ | |
16907 | ||
16908 | #define OACC_ROUTINE_CLAUSE_MASK \ | |
16909 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_GANG) \ | |
16910 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_WORKER) \ | |
16911 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_VECTOR) \ | |
16912 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_SEQ) ) | |
16913 | ||
16914 | /* Parse an OpenACC routine directive. For named directives, we apply | |
16915 | immediately to the named function. For unnamed ones we then parse | |
16916 | a declaration or definition, which must be for a function. */ | |
16917 | ||
16918 | static void | |
16919 | c_parser_oacc_routine (c_parser *parser, enum pragma_context context) | |
16920 | { | |
ae9281fc TS |
16921 | gcc_checking_assert (context == pragma_external); |
16922 | ||
0b212d8c | 16923 | oacc_routine_data data; |
ae9281fc TS |
16924 | data.error_seen = false; |
16925 | data.fndecl_seen = false; | |
0b212d8c TS |
16926 | data.clauses = NULL_TREE; |
16927 | data.loc = c_parser_peek_token (parser)->location; | |
3a40d81d NS |
16928 | |
16929 | c_parser_consume_pragma (parser); | |
16930 | ||
ae9281fc TS |
16931 | /* Look for optional '( name )'. */ |
16932 | if (c_parser_next_token_is (parser, CPP_OPEN_PAREN)) | |
3a40d81d | 16933 | { |
ae9281fc | 16934 | c_parser_consume_token (parser); /* '(' */ |
3a40d81d | 16935 | |
ae9281fc TS |
16936 | tree decl = NULL_TREE; |
16937 | c_token *name_token = c_parser_peek_token (parser); | |
16938 | location_t name_loc = name_token->location; | |
16939 | if (name_token->type == CPP_NAME | |
16940 | && (name_token->id_kind == C_ID_ID | |
16941 | || name_token->id_kind == C_ID_TYPENAME)) | |
3a40d81d | 16942 | { |
ae9281fc | 16943 | decl = lookup_name (name_token->value); |
3a40d81d | 16944 | if (!decl) |
ae9281fc TS |
16945 | error_at (name_loc, |
16946 | "%qE has not been declared", name_token->value); | |
a04e69c0 | 16947 | c_parser_consume_token (parser); |
3a40d81d NS |
16948 | } |
16949 | else | |
16950 | c_parser_error (parser, "expected function name"); | |
16951 | ||
a04e69c0 TS |
16952 | if (!decl |
16953 | || !c_parser_require (parser, CPP_CLOSE_PAREN, "expected %<)%>")) | |
16954 | { | |
16955 | c_parser_skip_to_pragma_eol (parser, false); | |
16956 | return; | |
16957 | } | |
ae9281fc TS |
16958 | |
16959 | data.clauses | |
16960 | = c_parser_oacc_all_clauses (parser, OACC_ROUTINE_CLAUSE_MASK, | |
16961 | "#pragma acc routine"); | |
5bf04509 TS |
16962 | /* The clauses are in reverse order; fix that to make later diagnostic |
16963 | emission easier. */ | |
16964 | data.clauses = nreverse (data.clauses); | |
ae9281fc TS |
16965 | |
16966 | if (TREE_CODE (decl) != FUNCTION_DECL) | |
16967 | { | |
16968 | error_at (name_loc, "%qD does not refer to a function", decl); | |
16969 | return; | |
16970 | } | |
16971 | ||
16972 | c_finish_oacc_routine (&data, decl, false); | |
3a40d81d | 16973 | } |
ae9281fc TS |
16974 | else /* No optional '( name )'. */ |
16975 | { | |
16976 | data.clauses | |
16977 | = c_parser_oacc_all_clauses (parser, OACC_ROUTINE_CLAUSE_MASK, | |
16978 | "#pragma acc routine"); | |
5bf04509 TS |
16979 | /* The clauses are in reverse order; fix that to make later diagnostic |
16980 | emission easier. */ | |
16981 | data.clauses = nreverse (data.clauses); | |
3a40d81d | 16982 | |
ae9281fc TS |
16983 | /* Emit a helpful diagnostic if there's another pragma following this |
16984 | one. Also don't allow a static assertion declaration, as in the | |
16985 | following we'll just parse a *single* "declaration or function | |
16986 | definition", and the static assertion counts an one. */ | |
16987 | if (c_parser_next_token_is (parser, CPP_PRAGMA) | |
16988 | || c_parser_next_token_is_keyword (parser, RID_STATIC_ASSERT)) | |
16989 | { | |
16990 | error_at (data.loc, | |
16991 | "%<#pragma acc routine%> not immediately followed by" | |
16992 | " function declaration or definition"); | |
16993 | /* ..., and then just keep going. */ | |
16994 | return; | |
16995 | } | |
16996 | ||
16997 | /* We only have to consider the pragma_external case here. */ | |
16998 | if (c_parser_next_token_is (parser, CPP_KEYWORD) | |
16999 | && c_parser_peek_token (parser)->keyword == RID_EXTENSION) | |
17000 | { | |
17001 | int ext = disable_extension_diagnostics (); | |
17002 | do | |
17003 | c_parser_consume_token (parser); | |
17004 | while (c_parser_next_token_is (parser, CPP_KEYWORD) | |
17005 | && c_parser_peek_token (parser)->keyword == RID_EXTENSION); | |
17006 | c_parser_declaration_or_fndef (parser, true, true, true, false, true, | |
4e03c3a7 | 17007 | NULL, vNULL, false, NULL, &data); |
ae9281fc TS |
17008 | restore_extension_diagnostics (ext); |
17009 | } | |
17010 | else | |
17011 | c_parser_declaration_or_fndef (parser, true, true, true, false, true, | |
4e03c3a7 | 17012 | NULL, vNULL, false, NULL, &data); |
ae9281fc | 17013 | } |
3a40d81d NS |
17014 | } |
17015 | ||
0b212d8c TS |
17016 | /* Finalize an OpenACC routine pragma, applying it to FNDECL. |
17017 | IS_DEFN is true if we're applying it to the definition. */ | |
3a40d81d NS |
17018 | |
17019 | static void | |
0b212d8c | 17020 | c_finish_oacc_routine (struct oacc_routine_data *data, tree fndecl, |
ae9281fc | 17021 | bool is_defn) |
3a40d81d | 17022 | { |
ae9281fc TS |
17023 | /* Keep going if we're in error reporting mode. */ |
17024 | if (data->error_seen | |
17025 | || fndecl == error_mark_node) | |
17026 | return; | |
17027 | ||
17028 | if (data->fndecl_seen) | |
3a40d81d | 17029 | { |
ae9281fc TS |
17030 | error_at (data->loc, |
17031 | "%<#pragma acc routine%> not immediately followed by" | |
17032 | " a single function declaration or definition"); | |
17033 | data->error_seen = true; | |
17034 | return; | |
17035 | } | |
17036 | if (fndecl == NULL_TREE || TREE_CODE (fndecl) != FUNCTION_DECL) | |
17037 | { | |
17038 | error_at (data->loc, | |
17039 | "%<#pragma acc routine%> not immediately followed by" | |
17040 | " function declaration or definition"); | |
17041 | data->error_seen = true; | |
3a40d81d NS |
17042 | return; |
17043 | } | |
17044 | ||
b48f44bf TS |
17045 | int compatible |
17046 | = oacc_verify_routine_clauses (fndecl, &data->clauses, data->loc, | |
17047 | "#pragma acc routine"); | |
17048 | if (compatible < 0) | |
ae9281fc | 17049 | { |
ae9281fc TS |
17050 | data->error_seen = true; |
17051 | return; | |
17052 | } | |
b48f44bf | 17053 | if (compatible > 0) |
ae9281fc | 17054 | { |
ae9281fc | 17055 | } |
b48f44bf TS |
17056 | else |
17057 | { | |
17058 | if (TREE_USED (fndecl) || (!is_defn && DECL_SAVED_TREE (fndecl))) | |
17059 | { | |
17060 | error_at (data->loc, | |
17061 | TREE_USED (fndecl) | |
17062 | ? G_("%<#pragma acc routine%> must be applied before use") | |
17063 | : G_("%<#pragma acc routine%> must be applied before" | |
17064 | " definition")); | |
17065 | data->error_seen = true; | |
17066 | return; | |
17067 | } | |
3a40d81d | 17068 | |
b48f44bf TS |
17069 | /* Set the routine's level of parallelism. */ |
17070 | tree dims = oacc_build_routine_dims (data->clauses); | |
17071 | oacc_replace_fn_attrib (fndecl, dims); | |
3a40d81d | 17072 | |
b48f44bf TS |
17073 | /* Add an "omp declare target" attribute. */ |
17074 | DECL_ATTRIBUTES (fndecl) | |
17075 | = tree_cons (get_identifier ("omp declare target"), | |
17076 | data->clauses, DECL_ATTRIBUTES (fndecl)); | |
17077 | } | |
ae9281fc TS |
17078 | |
17079 | /* Remember that we've used this "#pragma acc routine". */ | |
17080 | data->fndecl_seen = true; | |
3a40d81d NS |
17081 | } |
17082 | ||
41dbbb37 TS |
17083 | /* OpenACC 2.0: |
17084 | # pragma acc update oacc-update-clause[optseq] new-line | |
17085 | */ | |
17086 | ||
17087 | #define OACC_UPDATE_CLAUSE_MASK \ | |
17088 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_ASYNC) \ | |
17089 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_DEVICE) \ | |
17090 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_HOST) \ | |
17091 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_IF) \ | |
829c6349 | 17092 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_IF_PRESENT) \ |
41dbbb37 TS |
17093 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_WAIT) ) |
17094 | ||
17095 | static void | |
17096 | c_parser_oacc_update (c_parser *parser) | |
17097 | { | |
17098 | location_t loc = c_parser_peek_token (parser)->location; | |
17099 | ||
17100 | c_parser_consume_pragma (parser); | |
17101 | ||
17102 | tree clauses = c_parser_oacc_all_clauses (parser, OACC_UPDATE_CLAUSE_MASK, | |
17103 | "#pragma acc update"); | |
629b3d75 | 17104 | if (omp_find_clause (clauses, OMP_CLAUSE_MAP) == NULL_TREE) |
41dbbb37 TS |
17105 | { |
17106 | error_at (loc, | |
17107 | "%<#pragma acc update%> must contain at least one " | |
7a5e4956 | 17108 | "%<device%> or %<host%> or %<self%> clause"); |
41dbbb37 TS |
17109 | return; |
17110 | } | |
17111 | ||
17112 | if (parser->error) | |
17113 | return; | |
17114 | ||
17115 | tree stmt = make_node (OACC_UPDATE); | |
17116 | TREE_TYPE (stmt) = void_type_node; | |
17117 | OACC_UPDATE_CLAUSES (stmt) = clauses; | |
17118 | SET_EXPR_LOCATION (stmt, loc); | |
17119 | add_stmt (stmt); | |
17120 | } | |
17121 | ||
17122 | /* OpenACC 2.0: | |
17123 | # pragma acc wait [(intseq)] oacc-wait-clause[optseq] new-line | |
17124 | ||
17125 | LOC is the location of the #pragma token. | |
17126 | */ | |
17127 | ||
17128 | #define OACC_WAIT_CLAUSE_MASK \ | |
17129 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OACC_CLAUSE_ASYNC) ) | |
17130 | ||
17131 | static tree | |
17132 | c_parser_oacc_wait (location_t loc, c_parser *parser, char *p_name) | |
17133 | { | |
17134 | tree clauses, list = NULL_TREE, stmt = NULL_TREE; | |
17135 | ||
17136 | if (c_parser_peek_token (parser)->type == CPP_OPEN_PAREN) | |
17137 | list = c_parser_oacc_wait_list (parser, loc, list); | |
17138 | ||
17139 | strcpy (p_name, " wait"); | |
17140 | clauses = c_parser_oacc_all_clauses (parser, OACC_WAIT_CLAUSE_MASK, p_name); | |
17141 | stmt = c_finish_oacc_wait (loc, list, clauses); | |
04d2fbcc | 17142 | add_stmt (stmt); |
41dbbb37 TS |
17143 | |
17144 | return stmt; | |
17145 | } | |
17146 | ||
acf0174b JJ |
17147 | /* OpenMP 2.5: |
17148 | # pragma omp atomic new-line | |
17149 | expression-stmt | |
17150 | ||
17151 | expression-stmt: | |
17152 | x binop= expr | x++ | ++x | x-- | --x | |
17153 | binop: | |
17154 | +, *, -, /, &, ^, |, <<, >> | |
17155 | ||
17156 | where x is an lvalue expression with scalar type. | |
17157 | ||
17158 | OpenMP 3.1: | |
17159 | # pragma omp atomic new-line | |
17160 | update-stmt | |
17161 | ||
17162 | # pragma omp atomic read new-line | |
17163 | read-stmt | |
17164 | ||
17165 | # pragma omp atomic write new-line | |
17166 | write-stmt | |
17167 | ||
17168 | # pragma omp atomic update new-line | |
17169 | update-stmt | |
17170 | ||
17171 | # pragma omp atomic capture new-line | |
17172 | capture-stmt | |
17173 | ||
17174 | # pragma omp atomic capture new-line | |
17175 | capture-block | |
17176 | ||
17177 | read-stmt: | |
17178 | v = x | |
17179 | write-stmt: | |
17180 | x = expr | |
17181 | update-stmt: | |
17182 | expression-stmt | x = x binop expr | |
17183 | capture-stmt: | |
17184 | v = expression-stmt | |
17185 | capture-block: | |
17186 | { v = x; update-stmt; } | { update-stmt; v = x; } | |
17187 | ||
17188 | OpenMP 4.0: | |
17189 | update-stmt: | |
17190 | expression-stmt | x = x binop expr | x = expr binop x | |
17191 | capture-stmt: | |
17192 | v = update-stmt | |
17193 | capture-block: | |
17194 | { v = x; update-stmt; } | { update-stmt; v = x; } | { v = x; x = expr; } | |
17195 | ||
17196 | where x and v are lvalue expressions with scalar type. | |
17197 | ||
17198 | LOC is the location of the #pragma token. */ | |
17199 | ||
17200 | static void | |
17201 | c_parser_omp_atomic (location_t loc, c_parser *parser) | |
17202 | { | |
17203 | tree lhs = NULL_TREE, rhs = NULL_TREE, v = NULL_TREE; | |
17204 | tree lhs1 = NULL_TREE, rhs1 = NULL_TREE; | |
17205 | tree stmt, orig_lhs, unfolded_lhs = NULL_TREE, unfolded_lhs1 = NULL_TREE; | |
28567c40 JJ |
17206 | enum tree_code code = ERROR_MARK, opcode = NOP_EXPR; |
17207 | enum omp_memory_order memory_order = OMP_MEMORY_ORDER_UNSPECIFIED; | |
acf0174b JJ |
17208 | struct c_expr expr; |
17209 | location_t eloc; | |
17210 | bool structured_block = false; | |
17211 | bool swapped = false; | |
f4b189d5 | 17212 | bool non_lvalue_p; |
28567c40 JJ |
17213 | bool first = true; |
17214 | tree clauses = NULL_TREE; | |
acf0174b | 17215 | |
28567c40 | 17216 | while (c_parser_next_token_is_not (parser, CPP_PRAGMA_EOL)) |
acf0174b | 17217 | { |
28567c40 | 17218 | if (!first && c_parser_next_token_is (parser, CPP_COMMA)) |
42056eac JJ |
17219 | c_parser_consume_token (parser); |
17220 | ||
28567c40 JJ |
17221 | first = false; |
17222 | ||
42056eac | 17223 | if (c_parser_next_token_is (parser, CPP_NAME)) |
acf0174b | 17224 | { |
42056eac JJ |
17225 | const char *p |
17226 | = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
28567c40 JJ |
17227 | location_t cloc = c_parser_peek_token (parser)->location; |
17228 | enum tree_code new_code = ERROR_MARK; | |
17229 | enum omp_memory_order new_memory_order | |
17230 | = OMP_MEMORY_ORDER_UNSPECIFIED; | |
17231 | ||
17232 | if (!strcmp (p, "read")) | |
17233 | new_code = OMP_ATOMIC_READ; | |
17234 | else if (!strcmp (p, "write")) | |
17235 | new_code = NOP_EXPR; | |
17236 | else if (!strcmp (p, "update")) | |
17237 | new_code = OMP_ATOMIC; | |
17238 | else if (!strcmp (p, "capture")) | |
17239 | new_code = OMP_ATOMIC_CAPTURE_NEW; | |
17240 | else if (!strcmp (p, "seq_cst")) | |
17241 | new_memory_order = OMP_MEMORY_ORDER_SEQ_CST; | |
17242 | else if (!strcmp (p, "acq_rel")) | |
17243 | new_memory_order = OMP_MEMORY_ORDER_ACQ_REL; | |
17244 | else if (!strcmp (p, "release")) | |
17245 | new_memory_order = OMP_MEMORY_ORDER_RELEASE; | |
17246 | else if (!strcmp (p, "acquire")) | |
17247 | new_memory_order = OMP_MEMORY_ORDER_ACQUIRE; | |
17248 | else if (!strcmp (p, "relaxed")) | |
17249 | new_memory_order = OMP_MEMORY_ORDER_RELAXED; | |
17250 | else if (!strcmp (p, "hint")) | |
42056eac | 17251 | { |
42056eac | 17252 | c_parser_consume_token (parser); |
28567c40 JJ |
17253 | clauses = c_parser_omp_clause_hint (parser, clauses); |
17254 | continue; | |
17255 | } | |
17256 | else | |
17257 | { | |
17258 | p = NULL; | |
17259 | error_at (cloc, "expected %<read%>, %<write%>, %<update%>, " | |
17260 | "%<capture%>, %<seq_cst%>, %<acq_rel%>, " | |
17261 | "%<release%>, %<relaxed%> or %<hint%> clause"); | |
17262 | } | |
17263 | if (p) | |
17264 | { | |
17265 | if (new_code != ERROR_MARK) | |
17266 | { | |
17267 | if (code != ERROR_MARK) | |
17268 | error_at (cloc, "too many atomic clauses"); | |
17269 | else | |
17270 | code = new_code; | |
17271 | } | |
17272 | else if (new_memory_order != OMP_MEMORY_ORDER_UNSPECIFIED) | |
17273 | { | |
17274 | if (memory_order != OMP_MEMORY_ORDER_UNSPECIFIED) | |
17275 | error_at (cloc, "too many memory order clauses"); | |
17276 | else | |
17277 | memory_order = new_memory_order; | |
17278 | } | |
17279 | c_parser_consume_token (parser); | |
17280 | continue; | |
17281 | } | |
17282 | } | |
17283 | break; | |
17284 | } | |
17285 | c_parser_skip_to_pragma_eol (parser); | |
17286 | ||
17287 | if (code == ERROR_MARK) | |
17288 | code = OMP_ATOMIC; | |
17289 | if (memory_order == OMP_MEMORY_ORDER_UNSPECIFIED) | |
17290 | { | |
17291 | omp_requires_mask | |
17292 | = (enum omp_requires) (omp_requires_mask | |
17293 | | OMP_REQUIRES_ATOMIC_DEFAULT_MEM_ORDER_USED); | |
17294 | switch ((enum omp_memory_order) | |
17295 | (omp_requires_mask & OMP_REQUIRES_ATOMIC_DEFAULT_MEM_ORDER)) | |
17296 | { | |
17297 | case OMP_MEMORY_ORDER_UNSPECIFIED: | |
17298 | case OMP_MEMORY_ORDER_RELAXED: | |
17299 | memory_order = OMP_MEMORY_ORDER_RELAXED; | |
17300 | break; | |
17301 | case OMP_MEMORY_ORDER_SEQ_CST: | |
17302 | memory_order = OMP_MEMORY_ORDER_SEQ_CST; | |
17303 | break; | |
17304 | case OMP_MEMORY_ORDER_ACQ_REL: | |
17305 | switch (code) | |
17306 | { | |
17307 | case OMP_ATOMIC_READ: | |
17308 | memory_order = OMP_MEMORY_ORDER_ACQUIRE; | |
17309 | break; | |
17310 | case NOP_EXPR: /* atomic write */ | |
17311 | case OMP_ATOMIC: | |
17312 | memory_order = OMP_MEMORY_ORDER_RELEASE; | |
17313 | break; | |
17314 | default: | |
17315 | memory_order = OMP_MEMORY_ORDER_ACQ_REL; | |
17316 | break; | |
42056eac | 17317 | } |
28567c40 JJ |
17318 | break; |
17319 | default: | |
17320 | gcc_unreachable (); | |
acf0174b JJ |
17321 | } |
17322 | } | |
28567c40 JJ |
17323 | else |
17324 | switch (code) | |
17325 | { | |
17326 | case OMP_ATOMIC_READ: | |
17327 | if (memory_order == OMP_MEMORY_ORDER_ACQ_REL | |
17328 | || memory_order == OMP_MEMORY_ORDER_RELEASE) | |
17329 | { | |
17330 | error_at (loc, "%<#pragma omp atomic read%> incompatible with " | |
17331 | "%<acq_rel%> or %<release%> clauses"); | |
17332 | memory_order = OMP_MEMORY_ORDER_SEQ_CST; | |
17333 | } | |
17334 | break; | |
17335 | case NOP_EXPR: /* atomic write */ | |
17336 | if (memory_order == OMP_MEMORY_ORDER_ACQ_REL | |
17337 | || memory_order == OMP_MEMORY_ORDER_ACQUIRE) | |
17338 | { | |
17339 | error_at (loc, "%<#pragma omp atomic write%> incompatible with " | |
17340 | "%<acq_rel%> or %<acquire%> clauses"); | |
17341 | memory_order = OMP_MEMORY_ORDER_SEQ_CST; | |
17342 | } | |
17343 | break; | |
17344 | case OMP_ATOMIC: | |
17345 | if (memory_order == OMP_MEMORY_ORDER_ACQ_REL | |
17346 | || memory_order == OMP_MEMORY_ORDER_ACQUIRE) | |
17347 | { | |
17348 | error_at (loc, "%<#pragma omp atomic update%> incompatible with " | |
17349 | "%<acq_rel%> or %<acquire%> clauses"); | |
17350 | memory_order = OMP_MEMORY_ORDER_SEQ_CST; | |
17351 | } | |
17352 | break; | |
17353 | default: | |
17354 | break; | |
17355 | } | |
acf0174b JJ |
17356 | |
17357 | switch (code) | |
17358 | { | |
17359 | case OMP_ATOMIC_READ: | |
17360 | case NOP_EXPR: /* atomic write */ | |
f4b189d5 JJ |
17361 | v = c_parser_cast_expression (parser, NULL).value; |
17362 | non_lvalue_p = !lvalue_p (v); | |
f9c59f7e | 17363 | v = c_fully_fold (v, false, NULL, true); |
acf0174b JJ |
17364 | if (v == error_mark_node) |
17365 | goto saw_error; | |
f4b189d5 JJ |
17366 | if (non_lvalue_p) |
17367 | v = non_lvalue (v); | |
acf0174b JJ |
17368 | loc = c_parser_peek_token (parser)->location; |
17369 | if (!c_parser_require (parser, CPP_EQ, "expected %<=%>")) | |
17370 | goto saw_error; | |
17371 | if (code == NOP_EXPR) | |
f4b189d5 JJ |
17372 | { |
17373 | lhs = c_parser_expression (parser).value; | |
17374 | lhs = c_fully_fold (lhs, false, NULL); | |
17375 | if (lhs == error_mark_node) | |
17376 | goto saw_error; | |
17377 | } | |
acf0174b | 17378 | else |
f4b189d5 JJ |
17379 | { |
17380 | lhs = c_parser_cast_expression (parser, NULL).value; | |
17381 | non_lvalue_p = !lvalue_p (lhs); | |
f9c59f7e | 17382 | lhs = c_fully_fold (lhs, false, NULL, true); |
f4b189d5 JJ |
17383 | if (lhs == error_mark_node) |
17384 | goto saw_error; | |
17385 | if (non_lvalue_p) | |
17386 | lhs = non_lvalue (lhs); | |
17387 | } | |
acf0174b JJ |
17388 | if (code == NOP_EXPR) |
17389 | { | |
17390 | /* atomic write is represented by OMP_ATOMIC with NOP_EXPR | |
17391 | opcode. */ | |
17392 | code = OMP_ATOMIC; | |
17393 | rhs = lhs; | |
17394 | lhs = v; | |
17395 | v = NULL_TREE; | |
17396 | } | |
17397 | goto done; | |
17398 | case OMP_ATOMIC_CAPTURE_NEW: | |
17399 | if (c_parser_next_token_is (parser, CPP_OPEN_BRACE)) | |
17400 | { | |
17401 | c_parser_consume_token (parser); | |
17402 | structured_block = true; | |
17403 | } | |
17404 | else | |
17405 | { | |
f4b189d5 JJ |
17406 | v = c_parser_cast_expression (parser, NULL).value; |
17407 | non_lvalue_p = !lvalue_p (v); | |
f9c59f7e | 17408 | v = c_fully_fold (v, false, NULL, true); |
acf0174b JJ |
17409 | if (v == error_mark_node) |
17410 | goto saw_error; | |
f4b189d5 JJ |
17411 | if (non_lvalue_p) |
17412 | v = non_lvalue (v); | |
acf0174b JJ |
17413 | if (!c_parser_require (parser, CPP_EQ, "expected %<=%>")) |
17414 | goto saw_error; | |
17415 | } | |
17416 | break; | |
17417 | default: | |
17418 | break; | |
17419 | } | |
17420 | ||
17421 | /* For structured_block case we don't know yet whether | |
17422 | old or new x should be captured. */ | |
17423 | restart: | |
17424 | eloc = c_parser_peek_token (parser)->location; | |
f4b189d5 | 17425 | expr = c_parser_cast_expression (parser, NULL); |
acf0174b JJ |
17426 | lhs = expr.value; |
17427 | expr = default_function_array_conversion (eloc, expr); | |
17428 | unfolded_lhs = expr.value; | |
f9c59f7e | 17429 | lhs = c_fully_fold (lhs, false, NULL, true); |
acf0174b JJ |
17430 | orig_lhs = lhs; |
17431 | switch (TREE_CODE (lhs)) | |
17432 | { | |
17433 | case ERROR_MARK: | |
17434 | saw_error: | |
17435 | c_parser_skip_to_end_of_block_or_statement (parser); | |
17436 | if (structured_block) | |
17437 | { | |
17438 | if (c_parser_next_token_is (parser, CPP_CLOSE_BRACE)) | |
17439 | c_parser_consume_token (parser); | |
17440 | else if (code == OMP_ATOMIC_CAPTURE_NEW) | |
17441 | { | |
17442 | c_parser_skip_to_end_of_block_or_statement (parser); | |
17443 | if (c_parser_next_token_is (parser, CPP_CLOSE_BRACE)) | |
17444 | c_parser_consume_token (parser); | |
17445 | } | |
17446 | } | |
17447 | return; | |
17448 | ||
17449 | case POSTINCREMENT_EXPR: | |
17450 | if (code == OMP_ATOMIC_CAPTURE_NEW && !structured_block) | |
17451 | code = OMP_ATOMIC_CAPTURE_OLD; | |
17452 | /* FALLTHROUGH */ | |
17453 | case PREINCREMENT_EXPR: | |
17454 | lhs = TREE_OPERAND (lhs, 0); | |
17455 | unfolded_lhs = NULL_TREE; | |
17456 | opcode = PLUS_EXPR; | |
17457 | rhs = integer_one_node; | |
17458 | break; | |
17459 | ||
17460 | case POSTDECREMENT_EXPR: | |
17461 | if (code == OMP_ATOMIC_CAPTURE_NEW && !structured_block) | |
17462 | code = OMP_ATOMIC_CAPTURE_OLD; | |
17463 | /* FALLTHROUGH */ | |
17464 | case PREDECREMENT_EXPR: | |
17465 | lhs = TREE_OPERAND (lhs, 0); | |
17466 | unfolded_lhs = NULL_TREE; | |
17467 | opcode = MINUS_EXPR; | |
17468 | rhs = integer_one_node; | |
17469 | break; | |
17470 | ||
17471 | case COMPOUND_EXPR: | |
17472 | if (TREE_CODE (TREE_OPERAND (lhs, 0)) == SAVE_EXPR | |
17473 | && TREE_CODE (TREE_OPERAND (lhs, 1)) == COMPOUND_EXPR | |
17474 | && TREE_CODE (TREE_OPERAND (TREE_OPERAND (lhs, 1), 0)) == MODIFY_EXPR | |
17475 | && TREE_OPERAND (TREE_OPERAND (lhs, 1), 1) == TREE_OPERAND (lhs, 0) | |
17476 | && TREE_CODE (TREE_TYPE (TREE_OPERAND (TREE_OPERAND | |
17477 | (TREE_OPERAND (lhs, 1), 0), 0))) | |
17478 | == BOOLEAN_TYPE) | |
17479 | /* Undo effects of boolean_increment for post {in,de}crement. */ | |
17480 | lhs = TREE_OPERAND (TREE_OPERAND (lhs, 1), 0); | |
17481 | /* FALLTHRU */ | |
17482 | case MODIFY_EXPR: | |
17483 | if (TREE_CODE (lhs) == MODIFY_EXPR | |
17484 | && TREE_CODE (TREE_TYPE (TREE_OPERAND (lhs, 0))) == BOOLEAN_TYPE) | |
17485 | { | |
17486 | /* Undo effects of boolean_increment. */ | |
17487 | if (integer_onep (TREE_OPERAND (lhs, 1))) | |
17488 | { | |
17489 | /* This is pre or post increment. */ | |
17490 | rhs = TREE_OPERAND (lhs, 1); | |
17491 | lhs = TREE_OPERAND (lhs, 0); | |
17492 | unfolded_lhs = NULL_TREE; | |
17493 | opcode = NOP_EXPR; | |
17494 | if (code == OMP_ATOMIC_CAPTURE_NEW | |
17495 | && !structured_block | |
17496 | && TREE_CODE (orig_lhs) == COMPOUND_EXPR) | |
17497 | code = OMP_ATOMIC_CAPTURE_OLD; | |
17498 | break; | |
17499 | } | |
17500 | if (TREE_CODE (TREE_OPERAND (lhs, 1)) == TRUTH_NOT_EXPR | |
17501 | && TREE_OPERAND (lhs, 0) | |
17502 | == TREE_OPERAND (TREE_OPERAND (lhs, 1), 0)) | |
17503 | { | |
17504 | /* This is pre or post decrement. */ | |
17505 | rhs = TREE_OPERAND (lhs, 1); | |
17506 | lhs = TREE_OPERAND (lhs, 0); | |
17507 | unfolded_lhs = NULL_TREE; | |
17508 | opcode = NOP_EXPR; | |
17509 | if (code == OMP_ATOMIC_CAPTURE_NEW | |
17510 | && !structured_block | |
17511 | && TREE_CODE (orig_lhs) == COMPOUND_EXPR) | |
17512 | code = OMP_ATOMIC_CAPTURE_OLD; | |
17513 | break; | |
17514 | } | |
17515 | } | |
17516 | /* FALLTHRU */ | |
17517 | default: | |
f4b189d5 JJ |
17518 | if (!lvalue_p (unfolded_lhs)) |
17519 | lhs = non_lvalue (lhs); | |
acf0174b JJ |
17520 | switch (c_parser_peek_token (parser)->type) |
17521 | { | |
17522 | case CPP_MULT_EQ: | |
17523 | opcode = MULT_EXPR; | |
17524 | break; | |
17525 | case CPP_DIV_EQ: | |
17526 | opcode = TRUNC_DIV_EXPR; | |
17527 | break; | |
17528 | case CPP_PLUS_EQ: | |
17529 | opcode = PLUS_EXPR; | |
17530 | break; | |
17531 | case CPP_MINUS_EQ: | |
17532 | opcode = MINUS_EXPR; | |
17533 | break; | |
17534 | case CPP_LSHIFT_EQ: | |
17535 | opcode = LSHIFT_EXPR; | |
17536 | break; | |
17537 | case CPP_RSHIFT_EQ: | |
17538 | opcode = RSHIFT_EXPR; | |
17539 | break; | |
17540 | case CPP_AND_EQ: | |
17541 | opcode = BIT_AND_EXPR; | |
17542 | break; | |
17543 | case CPP_OR_EQ: | |
17544 | opcode = BIT_IOR_EXPR; | |
17545 | break; | |
17546 | case CPP_XOR_EQ: | |
17547 | opcode = BIT_XOR_EXPR; | |
17548 | break; | |
17549 | case CPP_EQ: | |
17550 | c_parser_consume_token (parser); | |
17551 | eloc = c_parser_peek_token (parser)->location; | |
17552 | expr = c_parser_expr_no_commas (parser, NULL, unfolded_lhs); | |
17553 | rhs1 = expr.value; | |
17554 | switch (TREE_CODE (rhs1)) | |
17555 | { | |
17556 | case MULT_EXPR: | |
17557 | case TRUNC_DIV_EXPR: | |
4886ec8e | 17558 | case RDIV_EXPR: |
acf0174b JJ |
17559 | case PLUS_EXPR: |
17560 | case MINUS_EXPR: | |
17561 | case LSHIFT_EXPR: | |
17562 | case RSHIFT_EXPR: | |
17563 | case BIT_AND_EXPR: | |
17564 | case BIT_IOR_EXPR: | |
17565 | case BIT_XOR_EXPR: | |
17566 | if (c_tree_equal (TREE_OPERAND (rhs1, 0), unfolded_lhs)) | |
17567 | { | |
17568 | opcode = TREE_CODE (rhs1); | |
f9c59f7e JJ |
17569 | rhs = c_fully_fold (TREE_OPERAND (rhs1, 1), false, NULL, |
17570 | true); | |
17571 | rhs1 = c_fully_fold (TREE_OPERAND (rhs1, 0), false, NULL, | |
17572 | true); | |
acf0174b JJ |
17573 | goto stmt_done; |
17574 | } | |
17575 | if (c_tree_equal (TREE_OPERAND (rhs1, 1), unfolded_lhs)) | |
17576 | { | |
17577 | opcode = TREE_CODE (rhs1); | |
f9c59f7e JJ |
17578 | rhs = c_fully_fold (TREE_OPERAND (rhs1, 0), false, NULL, |
17579 | true); | |
17580 | rhs1 = c_fully_fold (TREE_OPERAND (rhs1, 1), false, NULL, | |
17581 | true); | |
acf0174b JJ |
17582 | swapped = !commutative_tree_code (opcode); |
17583 | goto stmt_done; | |
17584 | } | |
17585 | break; | |
17586 | case ERROR_MARK: | |
17587 | goto saw_error; | |
17588 | default: | |
17589 | break; | |
17590 | } | |
17591 | if (c_parser_peek_token (parser)->type == CPP_SEMICOLON) | |
17592 | { | |
17593 | if (structured_block && code == OMP_ATOMIC_CAPTURE_NEW) | |
17594 | { | |
17595 | code = OMP_ATOMIC_CAPTURE_OLD; | |
17596 | v = lhs; | |
17597 | lhs = NULL_TREE; | |
17598 | expr = default_function_array_read_conversion (eloc, expr); | |
17599 | unfolded_lhs1 = expr.value; | |
f9c59f7e | 17600 | lhs1 = c_fully_fold (unfolded_lhs1, false, NULL, true); |
acf0174b JJ |
17601 | rhs1 = NULL_TREE; |
17602 | c_parser_consume_token (parser); | |
17603 | goto restart; | |
17604 | } | |
17605 | if (structured_block) | |
17606 | { | |
17607 | opcode = NOP_EXPR; | |
17608 | expr = default_function_array_read_conversion (eloc, expr); | |
f9c59f7e | 17609 | rhs = c_fully_fold (expr.value, false, NULL, true); |
acf0174b JJ |
17610 | rhs1 = NULL_TREE; |
17611 | goto stmt_done; | |
17612 | } | |
17613 | } | |
17614 | c_parser_error (parser, "invalid form of %<#pragma omp atomic%>"); | |
17615 | goto saw_error; | |
17616 | default: | |
17617 | c_parser_error (parser, | |
17618 | "invalid operator for %<#pragma omp atomic%>"); | |
17619 | goto saw_error; | |
17620 | } | |
17621 | ||
17622 | /* Arrange to pass the location of the assignment operator to | |
17623 | c_finish_omp_atomic. */ | |
17624 | loc = c_parser_peek_token (parser)->location; | |
17625 | c_parser_consume_token (parser); | |
17626 | eloc = c_parser_peek_token (parser)->location; | |
17627 | expr = c_parser_expression (parser); | |
17628 | expr = default_function_array_read_conversion (eloc, expr); | |
17629 | rhs = expr.value; | |
f9c59f7e | 17630 | rhs = c_fully_fold (rhs, false, NULL, true); |
acf0174b JJ |
17631 | break; |
17632 | } | |
17633 | stmt_done: | |
17634 | if (structured_block && code == OMP_ATOMIC_CAPTURE_NEW) | |
17635 | { | |
17636 | if (!c_parser_require (parser, CPP_SEMICOLON, "expected %<;%>")) | |
17637 | goto saw_error; | |
f4b189d5 JJ |
17638 | v = c_parser_cast_expression (parser, NULL).value; |
17639 | non_lvalue_p = !lvalue_p (v); | |
f9c59f7e | 17640 | v = c_fully_fold (v, false, NULL, true); |
acf0174b JJ |
17641 | if (v == error_mark_node) |
17642 | goto saw_error; | |
f4b189d5 JJ |
17643 | if (non_lvalue_p) |
17644 | v = non_lvalue (v); | |
acf0174b JJ |
17645 | if (!c_parser_require (parser, CPP_EQ, "expected %<=%>")) |
17646 | goto saw_error; | |
17647 | eloc = c_parser_peek_token (parser)->location; | |
f4b189d5 | 17648 | expr = c_parser_cast_expression (parser, NULL); |
acf0174b JJ |
17649 | lhs1 = expr.value; |
17650 | expr = default_function_array_read_conversion (eloc, expr); | |
17651 | unfolded_lhs1 = expr.value; | |
f9c59f7e | 17652 | lhs1 = c_fully_fold (lhs1, false, NULL, true); |
acf0174b JJ |
17653 | if (lhs1 == error_mark_node) |
17654 | goto saw_error; | |
f4b189d5 JJ |
17655 | if (!lvalue_p (unfolded_lhs1)) |
17656 | lhs1 = non_lvalue (lhs1); | |
acf0174b JJ |
17657 | } |
17658 | if (structured_block) | |
17659 | { | |
17660 | c_parser_skip_until_found (parser, CPP_SEMICOLON, "expected %<;%>"); | |
17661 | c_parser_require (parser, CPP_CLOSE_BRACE, "expected %<}%>"); | |
17662 | } | |
17663 | done: | |
17664 | if (unfolded_lhs && unfolded_lhs1 | |
17665 | && !c_tree_equal (unfolded_lhs, unfolded_lhs1)) | |
17666 | { | |
17667 | error ("%<#pragma omp atomic capture%> uses two different " | |
17668 | "expressions for memory"); | |
17669 | stmt = error_mark_node; | |
17670 | } | |
17671 | else | |
17672 | stmt = c_finish_omp_atomic (loc, code, opcode, lhs, rhs, v, lhs1, rhs1, | |
28567c40 | 17673 | swapped, memory_order); |
acf0174b JJ |
17674 | if (stmt != error_mark_node) |
17675 | add_stmt (stmt); | |
17676 | ||
17677 | if (!structured_block) | |
17678 | c_parser_skip_until_found (parser, CPP_SEMICOLON, "expected %<;%>"); | |
17679 | } | |
17680 | ||
17681 | ||
17682 | /* OpenMP 2.5: | |
17683 | # pragma omp barrier new-line | |
17684 | */ | |
17685 | ||
17686 | static void | |
17687 | c_parser_omp_barrier (c_parser *parser) | |
17688 | { | |
17689 | location_t loc = c_parser_peek_token (parser)->location; | |
17690 | c_parser_consume_pragma (parser); | |
17691 | c_parser_skip_to_pragma_eol (parser); | |
17692 | ||
17693 | c_finish_omp_barrier (loc); | |
17694 | } | |
17695 | ||
17696 | /* OpenMP 2.5: | |
17697 | # pragma omp critical [(name)] new-line | |
17698 | structured-block | |
17699 | ||
d9a6bd32 JJ |
17700 | OpenMP 4.5: |
17701 | # pragma omp critical [(name) [hint(expression)]] new-line | |
17702 | ||
acf0174b JJ |
17703 | LOC is the location of the #pragma itself. */ |
17704 | ||
d9a6bd32 JJ |
17705 | #define OMP_CRITICAL_CLAUSE_MASK \ |
17706 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_HINT) ) | |
17707 | ||
acf0174b | 17708 | static tree |
dda1bf61 | 17709 | c_parser_omp_critical (location_t loc, c_parser *parser, bool *if_p) |
acf0174b | 17710 | { |
d9a6bd32 | 17711 | tree stmt, name = NULL_TREE, clauses = NULL_TREE; |
acf0174b JJ |
17712 | |
17713 | if (c_parser_next_token_is (parser, CPP_OPEN_PAREN)) | |
17714 | { | |
17715 | c_parser_consume_token (parser); | |
17716 | if (c_parser_next_token_is (parser, CPP_NAME)) | |
17717 | { | |
17718 | name = c_parser_peek_token (parser)->value; | |
17719 | c_parser_consume_token (parser); | |
17720 | c_parser_require (parser, CPP_CLOSE_PAREN, "expected %<)%>"); | |
17721 | } | |
17722 | else | |
17723 | c_parser_error (parser, "expected identifier"); | |
d9a6bd32 | 17724 | |
28567c40 JJ |
17725 | if (c_parser_next_token_is (parser, CPP_COMMA) |
17726 | && c_parser_peek_2nd_token (parser)->type == CPP_NAME) | |
17727 | c_parser_consume_token (parser); | |
17728 | ||
d9a6bd32 JJ |
17729 | clauses = c_parser_omp_all_clauses (parser, |
17730 | OMP_CRITICAL_CLAUSE_MASK, | |
17731 | "#pragma omp critical"); | |
17732 | } | |
17733 | else | |
17734 | { | |
17735 | if (c_parser_next_token_is_not (parser, CPP_PRAGMA_EOL)) | |
17736 | c_parser_error (parser, "expected %<(%> or end of line"); | |
17737 | c_parser_skip_to_pragma_eol (parser); | |
acf0174b | 17738 | } |
acf0174b | 17739 | |
dda1bf61 | 17740 | stmt = c_parser_omp_structured_block (parser, if_p); |
d9a6bd32 | 17741 | return c_finish_omp_critical (loc, stmt, name, clauses); |
acf0174b JJ |
17742 | } |
17743 | ||
28567c40 JJ |
17744 | /* OpenMP 5.0: |
17745 | # pragma omp depobj ( depobj ) depobj-clause new-line | |
17746 | ||
17747 | depobj-clause: | |
17748 | depend (dependence-type : locator) | |
17749 | destroy | |
17750 | update (dependence-type) | |
17751 | ||
17752 | dependence-type: | |
17753 | in | |
17754 | out | |
17755 | inout | |
17756 | mutexinout */ | |
17757 | ||
17758 | static void | |
17759 | c_parser_omp_depobj (c_parser *parser) | |
17760 | { | |
17761 | location_t loc = c_parser_peek_token (parser)->location; | |
17762 | c_parser_consume_pragma (parser); | |
17763 | matching_parens parens; | |
17764 | if (!parens.require_open (parser)) | |
17765 | { | |
17766 | c_parser_skip_to_pragma_eol (parser); | |
17767 | return; | |
17768 | } | |
17769 | ||
17770 | tree depobj = c_parser_expr_no_commas (parser, NULL).value; | |
17771 | if (depobj != error_mark_node) | |
17772 | { | |
17773 | if (!lvalue_p (depobj)) | |
17774 | { | |
17775 | error_at (EXPR_LOC_OR_LOC (depobj, loc), | |
17776 | "%<depobj%> expression is not lvalue expression"); | |
17777 | depobj = error_mark_node; | |
17778 | } | |
17779 | else | |
17780 | { | |
17781 | tree addr = build_unary_op (EXPR_LOC_OR_LOC (depobj, loc), ADDR_EXPR, | |
17782 | depobj, false); | |
17783 | if (addr == error_mark_node) | |
17784 | depobj = error_mark_node; | |
17785 | else | |
17786 | depobj = build_indirect_ref (EXPR_LOC_OR_LOC (depobj, loc), | |
17787 | addr, RO_UNARY_STAR); | |
17788 | } | |
17789 | } | |
17790 | ||
17791 | parens.skip_until_found_close (parser); | |
17792 | tree clause = NULL_TREE; | |
17793 | enum omp_clause_depend_kind kind = OMP_CLAUSE_DEPEND_SOURCE; | |
17794 | location_t c_loc = c_parser_peek_token (parser)->location; | |
17795 | if (c_parser_next_token_is (parser, CPP_NAME)) | |
17796 | { | |
17797 | const char *p = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
17798 | ||
17799 | c_parser_consume_token (parser); | |
17800 | if (!strcmp ("depend", p)) | |
17801 | { | |
17802 | clause = c_parser_omp_clause_depend (parser, NULL_TREE); | |
17803 | clause = c_finish_omp_clauses (clause, C_ORT_OMP); | |
17804 | if (!clause) | |
17805 | clause = error_mark_node; | |
17806 | } | |
17807 | else if (!strcmp ("destroy", p)) | |
17808 | kind = OMP_CLAUSE_DEPEND_LAST; | |
17809 | else if (!strcmp ("update", p)) | |
17810 | { | |
17811 | matching_parens c_parens; | |
17812 | if (c_parens.require_open (parser)) | |
17813 | { | |
17814 | location_t c2_loc = c_parser_peek_token (parser)->location; | |
17815 | if (c_parser_next_token_is (parser, CPP_NAME)) | |
17816 | { | |
17817 | const char *p2 | |
17818 | = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
17819 | ||
17820 | c_parser_consume_token (parser); | |
17821 | if (!strcmp ("in", p2)) | |
17822 | kind = OMP_CLAUSE_DEPEND_IN; | |
17823 | else if (!strcmp ("out", p2)) | |
17824 | kind = OMP_CLAUSE_DEPEND_OUT; | |
17825 | else if (!strcmp ("inout", p2)) | |
17826 | kind = OMP_CLAUSE_DEPEND_INOUT; | |
17827 | else if (!strcmp ("mutexinoutset", p2)) | |
17828 | kind = OMP_CLAUSE_DEPEND_MUTEXINOUTSET; | |
17829 | } | |
17830 | if (kind == OMP_CLAUSE_DEPEND_SOURCE) | |
17831 | { | |
17832 | clause = error_mark_node; | |
17833 | error_at (c2_loc, "expected %<in%>, %<out%>, %<inout%> or " | |
17834 | "%<mutexinoutset%>"); | |
17835 | } | |
17836 | c_parens.skip_until_found_close (parser); | |
17837 | } | |
17838 | else | |
17839 | clause = error_mark_node; | |
17840 | } | |
17841 | } | |
17842 | if (!clause && kind == OMP_CLAUSE_DEPEND_SOURCE) | |
17843 | { | |
17844 | clause = error_mark_node; | |
17845 | error_at (c_loc, "expected %<depend%>, %<destroy%> or %<update%> clause"); | |
17846 | } | |
17847 | c_parser_skip_to_pragma_eol (parser); | |
17848 | ||
17849 | c_finish_omp_depobj (loc, depobj, kind, clause); | |
17850 | } | |
17851 | ||
17852 | ||
acf0174b JJ |
17853 | /* OpenMP 2.5: |
17854 | # pragma omp flush flush-vars[opt] new-line | |
17855 | ||
17856 | flush-vars: | |
28567c40 JJ |
17857 | ( variable-list ) |
17858 | ||
17859 | OpenMP 5.0: | |
17860 | # pragma omp flush memory-order-clause new-line */ | |
acf0174b JJ |
17861 | |
17862 | static void | |
17863 | c_parser_omp_flush (c_parser *parser) | |
17864 | { | |
17865 | location_t loc = c_parser_peek_token (parser)->location; | |
17866 | c_parser_consume_pragma (parser); | |
28567c40 JJ |
17867 | enum memmodel mo = MEMMODEL_LAST; |
17868 | if (c_parser_next_token_is (parser, CPP_NAME)) | |
17869 | { | |
17870 | const char *p | |
17871 | = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
17872 | ||
17873 | if (!strcmp (p, "acq_rel")) | |
17874 | mo = MEMMODEL_ACQ_REL; | |
17875 | else if (!strcmp (p, "release")) | |
17876 | mo = MEMMODEL_RELEASE; | |
17877 | else if (!strcmp (p, "acquire")) | |
17878 | mo = MEMMODEL_ACQUIRE; | |
17879 | else | |
17880 | error_at (c_parser_peek_token (parser)->location, | |
17881 | "expected %<acq_rel%>, %<release%> or %<acquire%>"); | |
17882 | c_parser_consume_token (parser); | |
17883 | } | |
acf0174b | 17884 | if (c_parser_next_token_is (parser, CPP_OPEN_PAREN)) |
28567c40 JJ |
17885 | { |
17886 | if (mo != MEMMODEL_LAST) | |
17887 | error_at (c_parser_peek_token (parser)->location, | |
17888 | "%<flush%> list specified together with memory order " | |
17889 | "clause"); | |
17890 | c_parser_omp_var_list_parens (parser, OMP_CLAUSE_ERROR, NULL); | |
17891 | } | |
acf0174b JJ |
17892 | else if (c_parser_next_token_is_not (parser, CPP_PRAGMA_EOL)) |
17893 | c_parser_error (parser, "expected %<(%> or end of line"); | |
17894 | c_parser_skip_to_pragma_eol (parser); | |
17895 | ||
28567c40 | 17896 | c_finish_omp_flush (loc, mo); |
acf0174b JJ |
17897 | } |
17898 | ||
bf38f7e9 JJ |
17899 | /* OpenMP 5.0: |
17900 | ||
17901 | scan-loop-body: | |
17902 | { structured-block scan-directive structured-block } */ | |
17903 | ||
17904 | static void | |
17905 | c_parser_omp_scan_loop_body (c_parser *parser, bool open_brace_parsed) | |
17906 | { | |
17907 | tree substmt; | |
17908 | location_t loc; | |
17909 | tree clauses = NULL_TREE; | |
17910 | ||
17911 | loc = c_parser_peek_token (parser)->location; | |
17912 | if (!open_brace_parsed | |
17913 | && !c_parser_require (parser, CPP_OPEN_BRACE, "expected %<{%>")) | |
17914 | { | |
17915 | /* Avoid skipping until the end of the block. */ | |
17916 | parser->error = false; | |
17917 | return; | |
17918 | } | |
17919 | ||
17920 | substmt = c_parser_omp_structured_block (parser, NULL); | |
17921 | substmt = build2 (OMP_SCAN, void_type_node, substmt, NULL_TREE); | |
17922 | SET_EXPR_LOCATION (substmt, loc); | |
17923 | add_stmt (substmt); | |
17924 | ||
17925 | loc = c_parser_peek_token (parser)->location; | |
17926 | if (c_parser_peek_token (parser)->pragma_kind == PRAGMA_OMP_SCAN) | |
17927 | { | |
17928 | enum omp_clause_code clause = OMP_CLAUSE_ERROR; | |
17929 | ||
17930 | c_parser_consume_pragma (parser); | |
17931 | ||
17932 | if (c_parser_next_token_is (parser, CPP_NAME)) | |
17933 | { | |
17934 | const char *p | |
17935 | = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
17936 | if (strcmp (p, "inclusive") == 0) | |
17937 | clause = OMP_CLAUSE_INCLUSIVE; | |
17938 | else if (strcmp (p, "exclusive") == 0) | |
17939 | clause = OMP_CLAUSE_EXCLUSIVE; | |
17940 | } | |
17941 | if (clause != OMP_CLAUSE_ERROR) | |
17942 | { | |
17943 | c_parser_consume_token (parser); | |
17944 | clauses = c_parser_omp_var_list_parens (parser, clause, NULL_TREE); | |
17945 | } | |
17946 | else | |
17947 | c_parser_error (parser, "expected %<inclusive%> or " | |
17948 | "%<exclusive%> clause"); | |
17949 | c_parser_skip_to_pragma_eol (parser); | |
17950 | } | |
17951 | else | |
17952 | error ("expected %<#pragma omp scan%>"); | |
17953 | ||
17954 | clauses = c_finish_omp_clauses (clauses, C_ORT_OMP); | |
17955 | substmt = c_parser_omp_structured_block (parser, NULL); | |
17956 | substmt = build2 (OMP_SCAN, void_type_node, substmt, clauses); | |
17957 | SET_EXPR_LOCATION (substmt, loc); | |
17958 | add_stmt (substmt); | |
17959 | ||
17960 | c_parser_skip_until_found (parser, CPP_CLOSE_BRACE, | |
17961 | "expected %<}%>"); | |
17962 | } | |
17963 | ||
41dbbb37 | 17964 | /* Parse the restricted form of loop statements allowed by OpenACC and OpenMP. |
acf0174b JJ |
17965 | The real trick here is to determine the loop control variable early |
17966 | so that we can push a new decl if necessary to make it private. | |
41dbbb37 TS |
17967 | LOC is the location of the "acc" or "omp" in "#pragma acc" or "#pragma omp", |
17968 | respectively. */ | |
acf0174b JJ |
17969 | |
17970 | static tree | |
17971 | c_parser_omp_for_loop (location_t loc, c_parser *parser, enum tree_code code, | |
dda1bf61 | 17972 | tree clauses, tree *cclauses, bool *if_p) |
acf0174b JJ |
17973 | { |
17974 | tree decl, cond, incr, save_break, save_cont, body, init, stmt, cl; | |
a8a098ac JJ |
17975 | tree declv, condv, incrv, initv, ret = NULL_TREE; |
17976 | tree pre_body = NULL_TREE, this_pre_body; | |
d9a6bd32 | 17977 | tree ordered_cl = NULL_TREE; |
acf0174b | 17978 | bool fail = false, open_brace_parsed = false; |
d9a6bd32 | 17979 | int i, collapse = 1, ordered = 0, count, nbraces = 0; |
acf0174b | 17980 | location_t for_loc; |
02889d23 | 17981 | bool tiling = false; |
bf38f7e9 | 17982 | bool inscan = false; |
acf0174b JJ |
17983 | vec<tree, va_gc> *for_block = make_tree_vector (); |
17984 | ||
17985 | for (cl = clauses; cl; cl = OMP_CLAUSE_CHAIN (cl)) | |
17986 | if (OMP_CLAUSE_CODE (cl) == OMP_CLAUSE_COLLAPSE) | |
9439e9a1 | 17987 | collapse = tree_to_shwi (OMP_CLAUSE_COLLAPSE_EXPR (cl)); |
02889d23 CLT |
17988 | else if (OMP_CLAUSE_CODE (cl) == OMP_CLAUSE_TILE) |
17989 | { | |
17990 | tiling = true; | |
17991 | collapse = list_length (OMP_CLAUSE_TILE_LIST (cl)); | |
17992 | } | |
d9a6bd32 JJ |
17993 | else if (OMP_CLAUSE_CODE (cl) == OMP_CLAUSE_ORDERED |
17994 | && OMP_CLAUSE_ORDERED_EXPR (cl)) | |
17995 | { | |
17996 | ordered_cl = cl; | |
17997 | ordered = tree_to_shwi (OMP_CLAUSE_ORDERED_EXPR (cl)); | |
17998 | } | |
bf38f7e9 JJ |
17999 | else if (OMP_CLAUSE_CODE (cl) == OMP_CLAUSE_REDUCTION |
18000 | && OMP_CLAUSE_REDUCTION_INSCAN (cl) | |
18001 | && (code == OMP_SIMD || code == OMP_FOR)) | |
18002 | inscan = true; | |
d9a6bd32 JJ |
18003 | |
18004 | if (ordered && ordered < collapse) | |
18005 | { | |
18006 | error_at (OMP_CLAUSE_LOCATION (ordered_cl), | |
18007 | "%<ordered%> clause parameter is less than %<collapse%>"); | |
18008 | OMP_CLAUSE_ORDERED_EXPR (ordered_cl) | |
18009 | = build_int_cst (NULL_TREE, collapse); | |
18010 | ordered = collapse; | |
18011 | } | |
18012 | if (ordered) | |
18013 | { | |
18014 | for (tree *pc = &clauses; *pc; ) | |
18015 | if (OMP_CLAUSE_CODE (*pc) == OMP_CLAUSE_LINEAR) | |
18016 | { | |
18017 | error_at (OMP_CLAUSE_LOCATION (*pc), | |
18018 | "%<linear%> clause may not be specified together " | |
18019 | "with %<ordered%> clause with a parameter"); | |
18020 | *pc = OMP_CLAUSE_CHAIN (*pc); | |
18021 | } | |
18022 | else | |
18023 | pc = &OMP_CLAUSE_CHAIN (*pc); | |
18024 | } | |
acf0174b | 18025 | |
02889d23 | 18026 | gcc_assert (tiling || (collapse >= 1 && ordered >= 0)); |
d9a6bd32 | 18027 | count = ordered ? ordered : collapse; |
acf0174b | 18028 | |
d9a6bd32 JJ |
18029 | declv = make_tree_vec (count); |
18030 | initv = make_tree_vec (count); | |
18031 | condv = make_tree_vec (count); | |
18032 | incrv = make_tree_vec (count); | |
acf0174b | 18033 | |
5e9d6aa4 | 18034 | if (!c_parser_next_token_is_keyword (parser, RID_FOR)) |
acf0174b JJ |
18035 | { |
18036 | c_parser_error (parser, "for statement expected"); | |
18037 | return NULL; | |
18038 | } | |
18039 | for_loc = c_parser_peek_token (parser)->location; | |
18040 | c_parser_consume_token (parser); | |
18041 | ||
d9a6bd32 | 18042 | for (i = 0; i < count; i++) |
acf0174b JJ |
18043 | { |
18044 | int bracecount = 0; | |
18045 | ||
32129a17 DM |
18046 | matching_parens parens; |
18047 | if (!parens.require_open (parser)) | |
acf0174b JJ |
18048 | goto pop_scopes; |
18049 | ||
18050 | /* Parse the initialization declaration or expression. */ | |
18051 | if (c_parser_next_tokens_start_declaration (parser)) | |
18052 | { | |
18053 | if (i > 0) | |
18054 | vec_safe_push (for_block, c_begin_compound_stmt (true)); | |
a8a098ac | 18055 | this_pre_body = push_stmt_list (); |
acf0174b JJ |
18056 | c_parser_declaration_or_fndef (parser, true, true, true, true, true, |
18057 | NULL, vNULL); | |
a8a098ac JJ |
18058 | if (this_pre_body) |
18059 | { | |
18060 | this_pre_body = pop_stmt_list (this_pre_body); | |
18061 | if (pre_body) | |
18062 | { | |
18063 | tree t = pre_body; | |
18064 | pre_body = push_stmt_list (); | |
18065 | add_stmt (t); | |
18066 | add_stmt (this_pre_body); | |
18067 | pre_body = pop_stmt_list (pre_body); | |
18068 | } | |
18069 | else | |
18070 | pre_body = this_pre_body; | |
18071 | } | |
acf0174b JJ |
18072 | decl = check_for_loop_decls (for_loc, flag_isoc99); |
18073 | if (decl == NULL) | |
18074 | goto error_init; | |
18075 | if (DECL_INITIAL (decl) == error_mark_node) | |
18076 | decl = error_mark_node; | |
18077 | init = decl; | |
18078 | } | |
18079 | else if (c_parser_next_token_is (parser, CPP_NAME) | |
18080 | && c_parser_peek_2nd_token (parser)->type == CPP_EQ) | |
18081 | { | |
18082 | struct c_expr decl_exp; | |
18083 | struct c_expr init_exp; | |
18084 | location_t init_loc; | |
18085 | ||
18086 | decl_exp = c_parser_postfix_expression (parser); | |
18087 | decl = decl_exp.value; | |
18088 | ||
18089 | c_parser_require (parser, CPP_EQ, "expected %<=%>"); | |
18090 | ||
18091 | init_loc = c_parser_peek_token (parser)->location; | |
18092 | init_exp = c_parser_expr_no_commas (parser, NULL); | |
18093 | init_exp = default_function_array_read_conversion (init_loc, | |
18094 | init_exp); | |
18095 | init = build_modify_expr (init_loc, decl, decl_exp.original_type, | |
18096 | NOP_EXPR, init_loc, init_exp.value, | |
18097 | init_exp.original_type); | |
18098 | init = c_process_expr_stmt (init_loc, init); | |
18099 | ||
18100 | c_parser_skip_until_found (parser, CPP_SEMICOLON, "expected %<;%>"); | |
18101 | } | |
18102 | else | |
18103 | { | |
18104 | error_init: | |
18105 | c_parser_error (parser, | |
18106 | "expected iteration declaration or initialization"); | |
18107 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, | |
18108 | "expected %<)%>"); | |
18109 | fail = true; | |
18110 | goto parse_next; | |
18111 | } | |
18112 | ||
18113 | /* Parse the loop condition. */ | |
18114 | cond = NULL_TREE; | |
18115 | if (c_parser_next_token_is_not (parser, CPP_SEMICOLON)) | |
18116 | { | |
18117 | location_t cond_loc = c_parser_peek_token (parser)->location; | |
18118 | struct c_expr cond_expr | |
18119 | = c_parser_binary_expression (parser, NULL, NULL_TREE); | |
18120 | ||
18121 | cond = cond_expr.value; | |
18122 | cond = c_objc_common_truthvalue_conversion (cond_loc, cond); | |
ebc6a85e TV |
18123 | if (COMPARISON_CLASS_P (cond)) |
18124 | { | |
18125 | tree op0 = TREE_OPERAND (cond, 0), op1 = TREE_OPERAND (cond, 1); | |
18126 | op0 = c_fully_fold (op0, false, NULL); | |
18127 | op1 = c_fully_fold (op1, false, NULL); | |
18128 | TREE_OPERAND (cond, 0) = op0; | |
18129 | TREE_OPERAND (cond, 1) = op1; | |
18130 | } | |
acf0174b JJ |
18131 | switch (cond_expr.original_code) |
18132 | { | |
18133 | case GT_EXPR: | |
18134 | case GE_EXPR: | |
18135 | case LT_EXPR: | |
18136 | case LE_EXPR: | |
18137 | break; | |
28567c40 JJ |
18138 | case NE_EXPR: |
18139 | if (code != OACC_LOOP) | |
18140 | break; | |
18141 | /* FALLTHRU. */ | |
acf0174b JJ |
18142 | default: |
18143 | /* Can't be cond = error_mark_node, because we want to preserve | |
18144 | the location until c_finish_omp_for. */ | |
18145 | cond = build1 (NOP_EXPR, boolean_type_node, error_mark_node); | |
18146 | break; | |
18147 | } | |
18148 | protected_set_expr_location (cond, cond_loc); | |
18149 | } | |
18150 | c_parser_skip_until_found (parser, CPP_SEMICOLON, "expected %<;%>"); | |
18151 | ||
18152 | /* Parse the increment expression. */ | |
18153 | incr = NULL_TREE; | |
18154 | if (c_parser_next_token_is_not (parser, CPP_CLOSE_PAREN)) | |
18155 | { | |
18156 | location_t incr_loc = c_parser_peek_token (parser)->location; | |
18157 | ||
18158 | incr = c_process_expr_stmt (incr_loc, | |
18159 | c_parser_expression (parser).value); | |
18160 | } | |
32129a17 | 18161 | parens.skip_until_found_close (parser); |
acf0174b JJ |
18162 | |
18163 | if (decl == NULL || decl == error_mark_node || init == error_mark_node) | |
18164 | fail = true; | |
18165 | else | |
18166 | { | |
18167 | TREE_VEC_ELT (declv, i) = decl; | |
18168 | TREE_VEC_ELT (initv, i) = init; | |
18169 | TREE_VEC_ELT (condv, i) = cond; | |
18170 | TREE_VEC_ELT (incrv, i) = incr; | |
18171 | } | |
18172 | ||
18173 | parse_next: | |
d9a6bd32 | 18174 | if (i == count - 1) |
acf0174b JJ |
18175 | break; |
18176 | ||
18177 | /* FIXME: OpenMP 3.0 draft isn't very clear on what exactly is allowed | |
18178 | in between the collapsed for loops to be still considered perfectly | |
18179 | nested. Hopefully the final version clarifies this. | |
18180 | For now handle (multiple) {'s and empty statements. */ | |
18181 | do | |
18182 | { | |
18183 | if (c_parser_next_token_is_keyword (parser, RID_FOR)) | |
18184 | { | |
18185 | c_parser_consume_token (parser); | |
18186 | break; | |
18187 | } | |
18188 | else if (c_parser_next_token_is (parser, CPP_OPEN_BRACE)) | |
18189 | { | |
18190 | c_parser_consume_token (parser); | |
18191 | bracecount++; | |
18192 | } | |
18193 | else if (bracecount | |
18194 | && c_parser_next_token_is (parser, CPP_SEMICOLON)) | |
18195 | c_parser_consume_token (parser); | |
18196 | else | |
18197 | { | |
18198 | c_parser_error (parser, "not enough perfectly nested loops"); | |
18199 | if (bracecount) | |
18200 | { | |
18201 | open_brace_parsed = true; | |
18202 | bracecount--; | |
18203 | } | |
18204 | fail = true; | |
d9a6bd32 | 18205 | count = 0; |
acf0174b JJ |
18206 | break; |
18207 | } | |
18208 | } | |
18209 | while (1); | |
18210 | ||
18211 | nbraces += bracecount; | |
18212 | } | |
18213 | ||
dda1bf61 JJ |
18214 | if (nbraces) |
18215 | if_p = NULL; | |
18216 | ||
acf0174b | 18217 | save_break = c_break_label; |
5e9d6aa4 | 18218 | c_break_label = size_one_node; |
acf0174b JJ |
18219 | save_cont = c_cont_label; |
18220 | c_cont_label = NULL_TREE; | |
18221 | body = push_stmt_list (); | |
18222 | ||
bf38f7e9 JJ |
18223 | if (inscan) |
18224 | c_parser_omp_scan_loop_body (parser, open_brace_parsed); | |
18225 | else if (open_brace_parsed) | |
acf0174b JJ |
18226 | { |
18227 | location_t here = c_parser_peek_token (parser)->location; | |
18228 | stmt = c_begin_compound_stmt (true); | |
18229 | c_parser_compound_statement_nostart (parser); | |
18230 | add_stmt (c_end_compound_stmt (here, stmt, true)); | |
18231 | } | |
18232 | else | |
dda1bf61 | 18233 | add_stmt (c_parser_c99_block_statement (parser, if_p)); |
acf0174b JJ |
18234 | if (c_cont_label) |
18235 | { | |
18236 | tree t = build1 (LABEL_EXPR, void_type_node, c_cont_label); | |
18237 | SET_EXPR_LOCATION (t, loc); | |
18238 | add_stmt (t); | |
18239 | } | |
18240 | ||
18241 | body = pop_stmt_list (body); | |
18242 | c_break_label = save_break; | |
18243 | c_cont_label = save_cont; | |
18244 | ||
18245 | while (nbraces) | |
18246 | { | |
18247 | if (c_parser_next_token_is (parser, CPP_CLOSE_BRACE)) | |
18248 | { | |
18249 | c_parser_consume_token (parser); | |
18250 | nbraces--; | |
18251 | } | |
18252 | else if (c_parser_next_token_is (parser, CPP_SEMICOLON)) | |
18253 | c_parser_consume_token (parser); | |
18254 | else | |
18255 | { | |
18256 | c_parser_error (parser, "collapsed loops not perfectly nested"); | |
18257 | while (nbraces) | |
18258 | { | |
18259 | location_t here = c_parser_peek_token (parser)->location; | |
18260 | stmt = c_begin_compound_stmt (true); | |
18261 | add_stmt (body); | |
18262 | c_parser_compound_statement_nostart (parser); | |
18263 | body = c_end_compound_stmt (here, stmt, true); | |
18264 | nbraces--; | |
18265 | } | |
18266 | goto pop_scopes; | |
18267 | } | |
18268 | } | |
18269 | ||
18270 | /* Only bother calling c_finish_omp_for if we haven't already generated | |
18271 | an error from the initialization parsing. */ | |
18272 | if (!fail) | |
18273 | { | |
d9a6bd32 | 18274 | stmt = c_finish_omp_for (loc, code, declv, NULL, initv, condv, |
28567c40 | 18275 | incrv, body, pre_body, true); |
e01d41e5 JJ |
18276 | |
18277 | /* Check for iterators appearing in lb, b or incr expressions. */ | |
18278 | if (stmt && !c_omp_check_loop_iv (stmt, declv, NULL)) | |
18279 | stmt = NULL_TREE; | |
18280 | ||
acf0174b JJ |
18281 | if (stmt) |
18282 | { | |
e01d41e5 JJ |
18283 | add_stmt (stmt); |
18284 | ||
acf0174b JJ |
18285 | if (cclauses != NULL |
18286 | && cclauses[C_OMP_CLAUSE_SPLIT_PARALLEL] != NULL) | |
18287 | { | |
18288 | tree *c; | |
18289 | for (c = &cclauses[C_OMP_CLAUSE_SPLIT_PARALLEL]; *c ; ) | |
18290 | if (OMP_CLAUSE_CODE (*c) != OMP_CLAUSE_FIRSTPRIVATE | |
18291 | && OMP_CLAUSE_CODE (*c) != OMP_CLAUSE_LASTPRIVATE) | |
18292 | c = &OMP_CLAUSE_CHAIN (*c); | |
18293 | else | |
18294 | { | |
d9a6bd32 | 18295 | for (i = 0; i < count; i++) |
acf0174b JJ |
18296 | if (TREE_VEC_ELT (declv, i) == OMP_CLAUSE_DECL (*c)) |
18297 | break; | |
d9a6bd32 | 18298 | if (i == count) |
acf0174b JJ |
18299 | c = &OMP_CLAUSE_CHAIN (*c); |
18300 | else if (OMP_CLAUSE_CODE (*c) == OMP_CLAUSE_FIRSTPRIVATE) | |
18301 | { | |
18302 | error_at (loc, | |
18303 | "iteration variable %qD should not be firstprivate", | |
18304 | OMP_CLAUSE_DECL (*c)); | |
18305 | *c = OMP_CLAUSE_CHAIN (*c); | |
18306 | } | |
18307 | else | |
18308 | { | |
41b37d5e JJ |
18309 | /* Move lastprivate (decl) clause to OMP_FOR_CLAUSES. */ |
18310 | tree l = *c; | |
18311 | *c = OMP_CLAUSE_CHAIN (*c); | |
56ad0e38 JJ |
18312 | if (code == OMP_SIMD) |
18313 | { | |
18314 | OMP_CLAUSE_CHAIN (l) | |
18315 | = cclauses[C_OMP_CLAUSE_SPLIT_FOR]; | |
18316 | cclauses[C_OMP_CLAUSE_SPLIT_FOR] = l; | |
18317 | } | |
18318 | else | |
18319 | { | |
18320 | OMP_CLAUSE_CHAIN (l) = clauses; | |
18321 | clauses = l; | |
18322 | } | |
acf0174b JJ |
18323 | } |
18324 | } | |
18325 | } | |
18326 | OMP_FOR_CLAUSES (stmt) = clauses; | |
18327 | } | |
18328 | ret = stmt; | |
18329 | } | |
18330 | pop_scopes: | |
18331 | while (!for_block->is_empty ()) | |
18332 | { | |
18333 | /* FIXME diagnostics: LOC below should be the actual location of | |
18334 | this particular for block. We need to build a list of | |
18335 | locations to go along with FOR_BLOCK. */ | |
18336 | stmt = c_end_compound_stmt (loc, for_block->pop (), true); | |
18337 | add_stmt (stmt); | |
18338 | } | |
18339 | release_tree_vector (for_block); | |
18340 | return ret; | |
18341 | } | |
18342 | ||
18343 | /* Helper function for OpenMP parsing, split clauses and call | |
18344 | finish_omp_clauses on each of the set of clauses afterwards. */ | |
18345 | ||
18346 | static void | |
18347 | omp_split_clauses (location_t loc, enum tree_code code, | |
18348 | omp_clause_mask mask, tree clauses, tree *cclauses) | |
18349 | { | |
18350 | int i; | |
18351 | c_omp_split_clauses (loc, code, mask, clauses, cclauses); | |
18352 | for (i = 0; i < C_OMP_CLAUSE_SPLIT_COUNT; i++) | |
18353 | if (cclauses[i]) | |
77886428 | 18354 | cclauses[i] = c_finish_omp_clauses (cclauses[i], C_ORT_OMP); |
acf0174b JJ |
18355 | } |
18356 | ||
554a530f JJ |
18357 | /* OpenMP 5.0: |
18358 | #pragma omp loop loop-clause[optseq] new-line | |
18359 | for-loop | |
18360 | ||
18361 | LOC is the location of the #pragma token. | |
18362 | */ | |
18363 | ||
18364 | #define OMP_LOOP_CLAUSE_MASK \ | |
18365 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_PRIVATE) \ | |
18366 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_LASTPRIVATE) \ | |
18367 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_REDUCTION) \ | |
18368 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_COLLAPSE) \ | |
18369 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_BIND) \ | |
18370 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_ORDER)) | |
18371 | ||
18372 | static tree | |
18373 | c_parser_omp_loop (location_t loc, c_parser *parser, | |
18374 | char *p_name, omp_clause_mask mask, tree *cclauses, | |
18375 | bool *if_p) | |
18376 | { | |
18377 | tree block, clauses, ret; | |
18378 | ||
18379 | strcat (p_name, " loop"); | |
18380 | mask |= OMP_LOOP_CLAUSE_MASK; | |
18381 | ||
18382 | clauses = c_parser_omp_all_clauses (parser, mask, p_name, cclauses == NULL); | |
18383 | if (cclauses) | |
18384 | { | |
18385 | omp_split_clauses (loc, OMP_LOOP, mask, clauses, cclauses); | |
18386 | clauses = cclauses[C_OMP_CLAUSE_SPLIT_LOOP]; | |
18387 | } | |
18388 | ||
18389 | block = c_begin_compound_stmt (true); | |
18390 | ret = c_parser_omp_for_loop (loc, parser, OMP_LOOP, clauses, cclauses, if_p); | |
18391 | block = c_end_compound_stmt (loc, block, true); | |
18392 | add_stmt (block); | |
18393 | ||
18394 | return ret; | |
18395 | } | |
18396 | ||
acf0174b JJ |
18397 | /* OpenMP 4.0: |
18398 | #pragma omp simd simd-clause[optseq] new-line | |
18399 | for-loop | |
18400 | ||
18401 | LOC is the location of the #pragma token. | |
18402 | */ | |
18403 | ||
18404 | #define OMP_SIMD_CLAUSE_MASK \ | |
18405 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_SAFELEN) \ | |
d9a6bd32 | 18406 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_SIMDLEN) \ |
acf0174b JJ |
18407 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_LINEAR) \ |
18408 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_ALIGNED) \ | |
18409 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_PRIVATE) \ | |
18410 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_LASTPRIVATE) \ | |
18411 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_REDUCTION) \ | |
28567c40 JJ |
18412 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_COLLAPSE) \ |
18413 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_IF) \ | |
1fdd6f04 JJ |
18414 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NONTEMPORAL) \ |
18415 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_ORDER)) | |
acf0174b JJ |
18416 | |
18417 | static tree | |
18418 | c_parser_omp_simd (location_t loc, c_parser *parser, | |
dda1bf61 JJ |
18419 | char *p_name, omp_clause_mask mask, tree *cclauses, |
18420 | bool *if_p) | |
acf0174b JJ |
18421 | { |
18422 | tree block, clauses, ret; | |
18423 | ||
18424 | strcat (p_name, " simd"); | |
18425 | mask |= OMP_SIMD_CLAUSE_MASK; | |
acf0174b JJ |
18426 | |
18427 | clauses = c_parser_omp_all_clauses (parser, mask, p_name, cclauses == NULL); | |
18428 | if (cclauses) | |
18429 | { | |
18430 | omp_split_clauses (loc, OMP_SIMD, mask, clauses, cclauses); | |
18431 | clauses = cclauses[C_OMP_CLAUSE_SPLIT_SIMD]; | |
629b3d75 | 18432 | tree c = omp_find_clause (cclauses[C_OMP_CLAUSE_SPLIT_FOR], |
d9a6bd32 JJ |
18433 | OMP_CLAUSE_ORDERED); |
18434 | if (c && OMP_CLAUSE_ORDERED_EXPR (c)) | |
18435 | { | |
18436 | error_at (OMP_CLAUSE_LOCATION (c), | |
18437 | "%<ordered%> clause with parameter may not be specified " | |
18438 | "on %qs construct", p_name); | |
18439 | OMP_CLAUSE_ORDERED_EXPR (c) = NULL_TREE; | |
18440 | } | |
acf0174b JJ |
18441 | } |
18442 | ||
18443 | block = c_begin_compound_stmt (true); | |
dda1bf61 | 18444 | ret = c_parser_omp_for_loop (loc, parser, OMP_SIMD, clauses, cclauses, if_p); |
acf0174b JJ |
18445 | block = c_end_compound_stmt (loc, block, true); |
18446 | add_stmt (block); | |
18447 | ||
18448 | return ret; | |
18449 | } | |
18450 | ||
18451 | /* OpenMP 2.5: | |
18452 | #pragma omp for for-clause[optseq] new-line | |
18453 | for-loop | |
18454 | ||
18455 | OpenMP 4.0: | |
18456 | #pragma omp for simd for-simd-clause[optseq] new-line | |
18457 | for-loop | |
18458 | ||
18459 | LOC is the location of the #pragma token. | |
18460 | */ | |
18461 | ||
18462 | #define OMP_FOR_CLAUSE_MASK \ | |
18463 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_PRIVATE) \ | |
18464 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_FIRSTPRIVATE) \ | |
18465 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_LASTPRIVATE) \ | |
d9a6bd32 | 18466 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_LINEAR) \ |
acf0174b JJ |
18467 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_REDUCTION) \ |
18468 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_ORDERED) \ | |
18469 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_SCHEDULE) \ | |
18470 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_COLLAPSE) \ | |
1fdd6f04 JJ |
18471 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NOWAIT) \ |
18472 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_ORDER)) | |
acf0174b JJ |
18473 | |
18474 | static tree | |
18475 | c_parser_omp_for (location_t loc, c_parser *parser, | |
dda1bf61 JJ |
18476 | char *p_name, omp_clause_mask mask, tree *cclauses, |
18477 | bool *if_p) | |
acf0174b JJ |
18478 | { |
18479 | tree block, clauses, ret; | |
18480 | ||
18481 | strcat (p_name, " for"); | |
18482 | mask |= OMP_FOR_CLAUSE_MASK; | |
00631022 JJ |
18483 | /* parallel for{, simd} disallows nowait clause, but for |
18484 | target {teams distribute ,}parallel for{, simd} it should be accepted. */ | |
18485 | if (cclauses && (mask & (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_MAP)) == 0) | |
acf0174b | 18486 | mask &= ~(OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NOWAIT); |
d9a6bd32 JJ |
18487 | /* Composite distribute parallel for{, simd} disallows ordered clause. */ |
18488 | if ((mask & (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_DIST_SCHEDULE)) != 0) | |
18489 | mask &= ~(OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_ORDERED); | |
acf0174b JJ |
18490 | |
18491 | if (c_parser_next_token_is (parser, CPP_NAME)) | |
20906c66 | 18492 | { |
acf0174b JJ |
18493 | const char *p = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); |
18494 | ||
18495 | if (strcmp (p, "simd") == 0) | |
18496 | { | |
18497 | tree cclauses_buf[C_OMP_CLAUSE_SPLIT_COUNT]; | |
18498 | if (cclauses == NULL) | |
18499 | cclauses = cclauses_buf; | |
18500 | ||
18501 | c_parser_consume_token (parser); | |
6d7f7e0a | 18502 | if (!flag_openmp) /* flag_openmp_simd */ |
dda1bf61 JJ |
18503 | return c_parser_omp_simd (loc, parser, p_name, mask, cclauses, |
18504 | if_p); | |
acf0174b | 18505 | block = c_begin_compound_stmt (true); |
dda1bf61 | 18506 | ret = c_parser_omp_simd (loc, parser, p_name, mask, cclauses, if_p); |
acf0174b JJ |
18507 | block = c_end_compound_stmt (loc, block, true); |
18508 | if (ret == NULL_TREE) | |
18509 | return ret; | |
18510 | ret = make_node (OMP_FOR); | |
18511 | TREE_TYPE (ret) = void_type_node; | |
18512 | OMP_FOR_BODY (ret) = block; | |
18513 | OMP_FOR_CLAUSES (ret) = cclauses[C_OMP_CLAUSE_SPLIT_FOR]; | |
18514 | SET_EXPR_LOCATION (ret, loc); | |
18515 | add_stmt (ret); | |
18516 | return ret; | |
18517 | } | |
20906c66 | 18518 | } |
6d7f7e0a TB |
18519 | if (!flag_openmp) /* flag_openmp_simd */ |
18520 | { | |
62021f64 | 18521 | c_parser_skip_to_pragma_eol (parser, false); |
6d7f7e0a TB |
18522 | return NULL_TREE; |
18523 | } | |
acf0174b | 18524 | |
d9a6bd32 JJ |
18525 | /* Composite distribute parallel for disallows linear clause. */ |
18526 | if ((mask & (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_DIST_SCHEDULE)) != 0) | |
18527 | mask &= ~(OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_LINEAR); | |
18528 | ||
acf0174b JJ |
18529 | clauses = c_parser_omp_all_clauses (parser, mask, p_name, cclauses == NULL); |
18530 | if (cclauses) | |
20906c66 | 18531 | { |
acf0174b JJ |
18532 | omp_split_clauses (loc, OMP_FOR, mask, clauses, cclauses); |
18533 | clauses = cclauses[C_OMP_CLAUSE_SPLIT_FOR]; | |
20906c66 | 18534 | } |
20906c66 | 18535 | |
acf0174b | 18536 | block = c_begin_compound_stmt (true); |
dda1bf61 | 18537 | ret = c_parser_omp_for_loop (loc, parser, OMP_FOR, clauses, cclauses, if_p); |
acf0174b JJ |
18538 | block = c_end_compound_stmt (loc, block, true); |
18539 | add_stmt (block); | |
18540 | ||
18541 | return ret; | |
953ff289 DN |
18542 | } |
18543 | ||
28567c40 JJ |
18544 | static tree c_parser_omp_taskloop (location_t, c_parser *, char *, |
18545 | omp_clause_mask, tree *, bool *); | |
18546 | ||
acf0174b JJ |
18547 | /* OpenMP 2.5: |
18548 | # pragma omp master new-line | |
18549 | structured-block | |
18550 | ||
18551 | LOC is the location of the #pragma token. | |
18552 | */ | |
18553 | ||
18554 | static tree | |
28567c40 JJ |
18555 | c_parser_omp_master (location_t loc, c_parser *parser, |
18556 | char *p_name, omp_clause_mask mask, tree *cclauses, | |
18557 | bool *if_p) | |
acf0174b | 18558 | { |
28567c40 JJ |
18559 | tree block, clauses, ret; |
18560 | ||
18561 | strcat (p_name, " master"); | |
18562 | ||
18563 | if (c_parser_next_token_is (parser, CPP_NAME)) | |
18564 | { | |
18565 | const char *p = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
18566 | ||
18567 | if (strcmp (p, "taskloop") == 0) | |
18568 | { | |
18569 | tree cclauses_buf[C_OMP_CLAUSE_SPLIT_COUNT]; | |
18570 | if (cclauses == NULL) | |
18571 | cclauses = cclauses_buf; | |
18572 | ||
18573 | c_parser_consume_token (parser); | |
18574 | if (!flag_openmp) /* flag_openmp_simd */ | |
18575 | return c_parser_omp_taskloop (loc, parser, p_name, mask, cclauses, | |
18576 | if_p); | |
18577 | block = c_begin_compound_stmt (true); | |
18578 | ret = c_parser_omp_taskloop (loc, parser, p_name, mask, cclauses, | |
18579 | if_p); | |
18580 | block = c_end_compound_stmt (loc, block, true); | |
18581 | if (ret == NULL_TREE) | |
18582 | return ret; | |
18583 | ret = c_finish_omp_master (loc, block); | |
18584 | return ret; | |
18585 | } | |
18586 | } | |
18587 | if (!flag_openmp) /* flag_openmp_simd */ | |
18588 | { | |
18589 | c_parser_skip_to_pragma_eol (parser, false); | |
18590 | return NULL_TREE; | |
18591 | } | |
18592 | ||
18593 | if (cclauses) | |
18594 | { | |
18595 | clauses = c_parser_omp_all_clauses (parser, mask, p_name, false); | |
18596 | omp_split_clauses (loc, OMP_MASTER, mask, clauses, cclauses); | |
18597 | } | |
18598 | else | |
18599 | c_parser_skip_to_pragma_eol (parser); | |
18600 | ||
dda1bf61 JJ |
18601 | return c_finish_omp_master (loc, c_parser_omp_structured_block (parser, |
18602 | if_p)); | |
acf0174b | 18603 | } |
953ff289 DN |
18604 | |
18605 | /* OpenMP 2.5: | |
acf0174b JJ |
18606 | # pragma omp ordered new-line |
18607 | structured-block | |
18608 | ||
d9a6bd32 JJ |
18609 | OpenMP 4.5: |
18610 | # pragma omp ordered ordered-clauses new-line | |
18611 | structured-block | |
18612 | ||
18613 | # pragma omp ordered depend-clauses new-line */ | |
18614 | ||
18615 | #define OMP_ORDERED_CLAUSE_MASK \ | |
18616 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_THREADS) \ | |
18617 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_SIMD)) | |
18618 | ||
18619 | #define OMP_ORDERED_DEPEND_CLAUSE_MASK \ | |
18620 | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_DEPEND) | |
18621 | ||
18622 | static bool | |
dda1bf61 JJ |
18623 | c_parser_omp_ordered (c_parser *parser, enum pragma_context context, |
18624 | bool *if_p) | |
d9a6bd32 JJ |
18625 | { |
18626 | location_t loc = c_parser_peek_token (parser)->location; | |
18627 | c_parser_consume_pragma (parser); | |
18628 | ||
18629 | if (context != pragma_stmt && context != pragma_compound) | |
18630 | { | |
18631 | c_parser_error (parser, "expected declaration specifiers"); | |
192b048b | 18632 | c_parser_skip_to_pragma_eol (parser, false); |
d9a6bd32 JJ |
18633 | return false; |
18634 | } | |
18635 | ||
18636 | if (c_parser_next_token_is (parser, CPP_NAME)) | |
18637 | { | |
18638 | const char *p = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
18639 | ||
18640 | if (!strcmp ("depend", p)) | |
18641 | { | |
d2e05fcb JJ |
18642 | if (!flag_openmp) /* flag_openmp_simd */ |
18643 | { | |
18644 | c_parser_skip_to_pragma_eol (parser, false); | |
18645 | return false; | |
18646 | } | |
d9a6bd32 JJ |
18647 | if (context == pragma_stmt) |
18648 | { | |
18649 | error_at (loc, | |
883c8f06 | 18650 | "%<#pragma omp ordered%> with %<depend%> clause may " |
d9a6bd32 | 18651 | "only be used in compound statements"); |
aec17bfe | 18652 | c_parser_skip_to_pragma_eol (parser, false); |
d9a6bd32 JJ |
18653 | return false; |
18654 | } | |
18655 | ||
18656 | tree clauses | |
18657 | = c_parser_omp_all_clauses (parser, | |
18658 | OMP_ORDERED_DEPEND_CLAUSE_MASK, | |
18659 | "#pragma omp ordered"); | |
18660 | c_finish_omp_ordered (loc, clauses, NULL_TREE); | |
18661 | return false; | |
18662 | } | |
18663 | } | |
953ff289 | 18664 | |
d9a6bd32 JJ |
18665 | tree clauses = c_parser_omp_all_clauses (parser, OMP_ORDERED_CLAUSE_MASK, |
18666 | "#pragma omp ordered"); | |
d2e05fcb JJ |
18667 | |
18668 | if (!flag_openmp /* flag_openmp_simd */ | |
18669 | && omp_find_clause (clauses, OMP_CLAUSE_SIMD) == NULL_TREE) | |
18670 | return false; | |
18671 | ||
d9a6bd32 | 18672 | c_finish_omp_ordered (loc, clauses, |
dda1bf61 | 18673 | c_parser_omp_structured_block (parser, if_p)); |
d9a6bd32 | 18674 | return true; |
acf0174b | 18675 | } |
953ff289 | 18676 | |
acf0174b JJ |
18677 | /* OpenMP 2.5: |
18678 | ||
18679 | section-scope: | |
18680 | { section-sequence } | |
18681 | ||
18682 | section-sequence: | |
18683 | section-directive[opt] structured-block | |
18684 | section-sequence section-directive structured-block | |
18685 | ||
18686 | SECTIONS_LOC is the location of the #pragma omp sections. */ | |
18687 | ||
18688 | static tree | |
18689 | c_parser_omp_sections_scope (location_t sections_loc, c_parser *parser) | |
18690 | { | |
18691 | tree stmt, substmt; | |
18692 | bool error_suppress = false; | |
18693 | location_t loc; | |
18694 | ||
18695 | loc = c_parser_peek_token (parser)->location; | |
18696 | if (!c_parser_require (parser, CPP_OPEN_BRACE, "expected %<{%>")) | |
18697 | { | |
18698 | /* Avoid skipping until the end of the block. */ | |
18699 | parser->error = false; | |
18700 | return NULL_TREE; | |
18701 | } | |
18702 | ||
18703 | stmt = push_stmt_list (); | |
18704 | ||
18705 | if (c_parser_peek_token (parser)->pragma_kind != PRAGMA_OMP_SECTION) | |
18706 | { | |
dda1bf61 | 18707 | substmt = c_parser_omp_structured_block (parser, NULL); |
acf0174b JJ |
18708 | substmt = build1 (OMP_SECTION, void_type_node, substmt); |
18709 | SET_EXPR_LOCATION (substmt, loc); | |
18710 | add_stmt (substmt); | |
18711 | } | |
18712 | ||
18713 | while (1) | |
18714 | { | |
18715 | if (c_parser_next_token_is (parser, CPP_CLOSE_BRACE)) | |
18716 | break; | |
18717 | if (c_parser_next_token_is (parser, CPP_EOF)) | |
18718 | break; | |
18719 | ||
18720 | loc = c_parser_peek_token (parser)->location; | |
18721 | if (c_parser_peek_token (parser)->pragma_kind == PRAGMA_OMP_SECTION) | |
18722 | { | |
18723 | c_parser_consume_pragma (parser); | |
18724 | c_parser_skip_to_pragma_eol (parser); | |
18725 | error_suppress = false; | |
18726 | } | |
18727 | else if (!error_suppress) | |
18728 | { | |
18729 | error_at (loc, "expected %<#pragma omp section%> or %<}%>"); | |
18730 | error_suppress = true; | |
18731 | } | |
18732 | ||
dda1bf61 | 18733 | substmt = c_parser_omp_structured_block (parser, NULL); |
acf0174b JJ |
18734 | substmt = build1 (OMP_SECTION, void_type_node, substmt); |
18735 | SET_EXPR_LOCATION (substmt, loc); | |
18736 | add_stmt (substmt); | |
18737 | } | |
18738 | c_parser_skip_until_found (parser, CPP_CLOSE_BRACE, | |
18739 | "expected %<#pragma omp section%> or %<}%>"); | |
18740 | ||
18741 | substmt = pop_stmt_list (stmt); | |
18742 | ||
18743 | stmt = make_node (OMP_SECTIONS); | |
18744 | SET_EXPR_LOCATION (stmt, sections_loc); | |
18745 | TREE_TYPE (stmt) = void_type_node; | |
18746 | OMP_SECTIONS_BODY (stmt) = substmt; | |
18747 | ||
18748 | return add_stmt (stmt); | |
953ff289 DN |
18749 | } |
18750 | ||
18751 | /* OpenMP 2.5: | |
acf0174b JJ |
18752 | # pragma omp sections sections-clause[optseq] newline |
18753 | sections-scope | |
c2255bc4 | 18754 | |
acf0174b JJ |
18755 | LOC is the location of the #pragma token. |
18756 | */ | |
18757 | ||
18758 | #define OMP_SECTIONS_CLAUSE_MASK \ | |
18759 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_PRIVATE) \ | |
18760 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_FIRSTPRIVATE) \ | |
18761 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_LASTPRIVATE) \ | |
18762 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_REDUCTION) \ | |
18763 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NOWAIT)) | |
953ff289 DN |
18764 | |
18765 | static tree | |
acf0174b JJ |
18766 | c_parser_omp_sections (location_t loc, c_parser *parser, |
18767 | char *p_name, omp_clause_mask mask, tree *cclauses) | |
953ff289 | 18768 | { |
acf0174b | 18769 | tree block, clauses, ret; |
953ff289 | 18770 | |
acf0174b JJ |
18771 | strcat (p_name, " sections"); |
18772 | mask |= OMP_SECTIONS_CLAUSE_MASK; | |
18773 | if (cclauses) | |
18774 | mask &= ~(OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NOWAIT); | |
18775 | ||
18776 | clauses = c_parser_omp_all_clauses (parser, mask, p_name, cclauses == NULL); | |
18777 | if (cclauses) | |
18778 | { | |
18779 | omp_split_clauses (loc, OMP_SECTIONS, mask, clauses, cclauses); | |
18780 | clauses = cclauses[C_OMP_CLAUSE_SPLIT_SECTIONS]; | |
18781 | } | |
18782 | ||
18783 | block = c_begin_compound_stmt (true); | |
18784 | ret = c_parser_omp_sections_scope (loc, parser); | |
18785 | if (ret) | |
18786 | OMP_SECTIONS_CLAUSES (ret) = clauses; | |
18787 | block = c_end_compound_stmt (loc, block, true); | |
18788 | add_stmt (block); | |
18789 | ||
18790 | return ret; | |
18791 | } | |
18792 | ||
18793 | /* OpenMP 2.5: | |
cef0fd0e TS |
18794 | # pragma omp parallel parallel-clause[optseq] new-line |
18795 | structured-block | |
18796 | # pragma omp parallel for parallel-for-clause[optseq] new-line | |
18797 | structured-block | |
18798 | # pragma omp parallel sections parallel-sections-clause[optseq] new-line | |
18799 | structured-block | |
18800 | ||
18801 | OpenMP 4.0: | |
18802 | # pragma omp parallel for simd parallel-for-simd-clause[optseq] new-line | |
18803 | structured-block | |
acf0174b JJ |
18804 | |
18805 | LOC is the location of the #pragma token. | |
18806 | */ | |
18807 | ||
18808 | #define OMP_PARALLEL_CLAUSE_MASK \ | |
18809 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_IF) \ | |
18810 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_PRIVATE) \ | |
18811 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_FIRSTPRIVATE) \ | |
18812 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_DEFAULT) \ | |
18813 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_SHARED) \ | |
18814 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_COPYIN) \ | |
18815 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_REDUCTION) \ | |
18816 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NUM_THREADS) \ | |
18817 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_PROC_BIND)) | |
18818 | ||
18819 | static tree | |
18820 | c_parser_omp_parallel (location_t loc, c_parser *parser, | |
dda1bf61 JJ |
18821 | char *p_name, omp_clause_mask mask, tree *cclauses, |
18822 | bool *if_p) | |
acf0174b JJ |
18823 | { |
18824 | tree stmt, clauses, block; | |
18825 | ||
18826 | strcat (p_name, " parallel"); | |
18827 | mask |= OMP_PARALLEL_CLAUSE_MASK; | |
d9a6bd32 JJ |
18828 | /* #pragma omp target parallel{, for, for simd} disallow copyin clause. */ |
18829 | if ((mask & (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_MAP)) != 0 | |
18830 | && (mask & (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_DIST_SCHEDULE)) == 0) | |
18831 | mask &= ~(OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_COPYIN); | |
acf0174b JJ |
18832 | |
18833 | if (c_parser_next_token_is_keyword (parser, RID_FOR)) | |
953ff289 | 18834 | { |
acf0174b JJ |
18835 | tree cclauses_buf[C_OMP_CLAUSE_SPLIT_COUNT]; |
18836 | if (cclauses == NULL) | |
18837 | cclauses = cclauses_buf; | |
18838 | ||
953ff289 | 18839 | c_parser_consume_token (parser); |
6d7f7e0a | 18840 | if (!flag_openmp) /* flag_openmp_simd */ |
dda1bf61 | 18841 | return c_parser_omp_for (loc, parser, p_name, mask, cclauses, if_p); |
acf0174b | 18842 | block = c_begin_omp_parallel (); |
dda1bf61 | 18843 | tree ret = c_parser_omp_for (loc, parser, p_name, mask, cclauses, if_p); |
acf0174b JJ |
18844 | stmt |
18845 | = c_finish_omp_parallel (loc, cclauses[C_OMP_CLAUSE_SPLIT_PARALLEL], | |
18846 | block); | |
e162a134 JJ |
18847 | if (ret == NULL_TREE) |
18848 | return ret; | |
acf0174b JJ |
18849 | OMP_PARALLEL_COMBINED (stmt) = 1; |
18850 | return stmt; | |
18851 | } | |
d9a6bd32 JJ |
18852 | /* When combined with distribute, parallel has to be followed by for. |
18853 | #pragma omp target parallel is allowed though. */ | |
18854 | else if (cclauses | |
18855 | && (mask & (OMP_CLAUSE_MASK_1 | |
18856 | << PRAGMA_OMP_CLAUSE_DIST_SCHEDULE)) != 0) | |
acf0174b JJ |
18857 | { |
18858 | error_at (loc, "expected %<for%> after %qs", p_name); | |
18859 | c_parser_skip_to_pragma_eol (parser); | |
18860 | return NULL_TREE; | |
18861 | } | |
554a530f | 18862 | else if (c_parser_next_token_is (parser, CPP_NAME)) |
acf0174b JJ |
18863 | { |
18864 | const char *p = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
554a530f | 18865 | if (cclauses == NULL && strcmp (p, "master") == 0) |
953ff289 | 18866 | { |
acf0174b | 18867 | tree cclauses_buf[C_OMP_CLAUSE_SPLIT_COUNT]; |
28567c40 JJ |
18868 | cclauses = cclauses_buf; |
18869 | ||
18870 | c_parser_consume_token (parser); | |
18871 | if (!flag_openmp) /* flag_openmp_simd */ | |
18872 | return c_parser_omp_master (loc, parser, p_name, mask, cclauses, | |
18873 | if_p); | |
18874 | block = c_begin_omp_parallel (); | |
18875 | tree ret = c_parser_omp_master (loc, parser, p_name, mask, cclauses, | |
18876 | if_p); | |
18877 | stmt = c_finish_omp_parallel (loc, | |
18878 | cclauses[C_OMP_CLAUSE_SPLIT_PARALLEL], | |
18879 | block); | |
18880 | OMP_PARALLEL_COMBINED (stmt) = 1; | |
18881 | if (ret == NULL) | |
18882 | return ret; | |
18883 | return stmt; | |
18884 | } | |
554a530f JJ |
18885 | else if (strcmp (p, "loop") == 0) |
18886 | { | |
18887 | tree cclauses_buf[C_OMP_CLAUSE_SPLIT_COUNT]; | |
18888 | if (cclauses == NULL) | |
18889 | cclauses = cclauses_buf; | |
18890 | ||
18891 | c_parser_consume_token (parser); | |
18892 | if (!flag_openmp) /* flag_openmp_simd */ | |
18893 | return c_parser_omp_loop (loc, parser, p_name, mask, cclauses, | |
18894 | if_p); | |
18895 | block = c_begin_omp_parallel (); | |
18896 | tree ret = c_parser_omp_loop (loc, parser, p_name, mask, cclauses, | |
18897 | if_p); | |
18898 | stmt | |
18899 | = c_finish_omp_parallel (loc, | |
18900 | cclauses[C_OMP_CLAUSE_SPLIT_PARALLEL], | |
18901 | block); | |
18902 | if (ret == NULL_TREE) | |
18903 | return ret; | |
18904 | OMP_PARALLEL_COMBINED (stmt) = 1; | |
18905 | return stmt; | |
18906 | } | |
28567c40 JJ |
18907 | else if (!flag_openmp) /* flag_openmp_simd */ |
18908 | { | |
18909 | c_parser_skip_to_pragma_eol (parser, false); | |
18910 | return NULL_TREE; | |
18911 | } | |
554a530f | 18912 | else if (cclauses == NULL && strcmp (p, "sections") == 0) |
28567c40 JJ |
18913 | { |
18914 | tree cclauses_buf[C_OMP_CLAUSE_SPLIT_COUNT]; | |
18915 | cclauses = cclauses_buf; | |
acf0174b | 18916 | |
953ff289 | 18917 | c_parser_consume_token (parser); |
acf0174b JJ |
18918 | block = c_begin_omp_parallel (); |
18919 | c_parser_omp_sections (loc, parser, p_name, mask, cclauses); | |
18920 | stmt = c_finish_omp_parallel (loc, | |
18921 | cclauses[C_OMP_CLAUSE_SPLIT_PARALLEL], | |
18922 | block); | |
18923 | OMP_PARALLEL_COMBINED (stmt) = 1; | |
18924 | return stmt; | |
953ff289 | 18925 | } |
953ff289 | 18926 | } |
28567c40 JJ |
18927 | else if (!flag_openmp) /* flag_openmp_simd */ |
18928 | { | |
18929 | c_parser_skip_to_pragma_eol (parser, false); | |
18930 | return NULL_TREE; | |
18931 | } | |
953ff289 | 18932 | |
acf0174b | 18933 | clauses = c_parser_omp_all_clauses (parser, mask, p_name, cclauses == NULL); |
d9a6bd32 JJ |
18934 | if (cclauses) |
18935 | { | |
18936 | omp_split_clauses (loc, OMP_PARALLEL, mask, clauses, cclauses); | |
18937 | clauses = cclauses[C_OMP_CLAUSE_SPLIT_PARALLEL]; | |
18938 | } | |
acf0174b JJ |
18939 | |
18940 | block = c_begin_omp_parallel (); | |
dda1bf61 | 18941 | c_parser_statement (parser, if_p); |
acf0174b JJ |
18942 | stmt = c_finish_omp_parallel (loc, clauses, block); |
18943 | ||
18944 | return stmt; | |
18945 | } | |
18946 | ||
18947 | /* OpenMP 2.5: | |
18948 | # pragma omp single single-clause[optseq] new-line | |
18949 | structured-block | |
18950 | ||
18951 | LOC is the location of the #pragma. | |
18952 | */ | |
18953 | ||
18954 | #define OMP_SINGLE_CLAUSE_MASK \ | |
18955 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_PRIVATE) \ | |
18956 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_FIRSTPRIVATE) \ | |
18957 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_COPYPRIVATE) \ | |
18958 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NOWAIT)) | |
18959 | ||
18960 | static tree | |
dda1bf61 | 18961 | c_parser_omp_single (location_t loc, c_parser *parser, bool *if_p) |
acf0174b JJ |
18962 | { |
18963 | tree stmt = make_node (OMP_SINGLE); | |
18964 | SET_EXPR_LOCATION (stmt, loc); | |
18965 | TREE_TYPE (stmt) = void_type_node; | |
18966 | ||
18967 | OMP_SINGLE_CLAUSES (stmt) | |
18968 | = c_parser_omp_all_clauses (parser, OMP_SINGLE_CLAUSE_MASK, | |
18969 | "#pragma omp single"); | |
dda1bf61 | 18970 | OMP_SINGLE_BODY (stmt) = c_parser_omp_structured_block (parser, if_p); |
acf0174b JJ |
18971 | |
18972 | return add_stmt (stmt); | |
18973 | } | |
18974 | ||
18975 | /* OpenMP 3.0: | |
18976 | # pragma omp task task-clause[optseq] new-line | |
18977 | ||
18978 | LOC is the location of the #pragma. | |
18979 | */ | |
18980 | ||
18981 | #define OMP_TASK_CLAUSE_MASK \ | |
18982 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_IF) \ | |
18983 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_UNTIED) \ | |
18984 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_DEFAULT) \ | |
18985 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_PRIVATE) \ | |
18986 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_FIRSTPRIVATE) \ | |
18987 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_SHARED) \ | |
18988 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_FINAL) \ | |
18989 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_MERGEABLE) \ | |
d9a6bd32 | 18990 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_DEPEND) \ |
28567c40 JJ |
18991 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_PRIORITY) \ |
18992 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_IN_REDUCTION)) | |
acf0174b JJ |
18993 | |
18994 | static tree | |
dda1bf61 | 18995 | c_parser_omp_task (location_t loc, c_parser *parser, bool *if_p) |
acf0174b JJ |
18996 | { |
18997 | tree clauses, block; | |
18998 | ||
18999 | clauses = c_parser_omp_all_clauses (parser, OMP_TASK_CLAUSE_MASK, | |
19000 | "#pragma omp task"); | |
19001 | ||
19002 | block = c_begin_omp_task (); | |
dda1bf61 | 19003 | c_parser_statement (parser, if_p); |
acf0174b | 19004 | return c_finish_omp_task (loc, clauses, block); |
953ff289 DN |
19005 | } |
19006 | ||
acf0174b JJ |
19007 | /* OpenMP 3.0: |
19008 | # pragma omp taskwait new-line | |
28567c40 JJ |
19009 | |
19010 | OpenMP 5.0: | |
19011 | # pragma omp taskwait taskwait-clause[optseq] new-line | |
acf0174b | 19012 | */ |
953ff289 | 19013 | |
28567c40 JJ |
19014 | #define OMP_TASKWAIT_CLAUSE_MASK \ |
19015 | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_DEPEND) | |
19016 | ||
953ff289 | 19017 | static void |
acf0174b | 19018 | c_parser_omp_taskwait (c_parser *parser) |
953ff289 | 19019 | { |
c2255bc4 | 19020 | location_t loc = c_parser_peek_token (parser)->location; |
953ff289 | 19021 | c_parser_consume_pragma (parser); |
953ff289 | 19022 | |
28567c40 JJ |
19023 | tree clauses |
19024 | = c_parser_omp_all_clauses (parser, OMP_TASKWAIT_CLAUSE_MASK, | |
19025 | "#pragma omp taskwait"); | |
19026 | ||
19027 | if (clauses) | |
19028 | { | |
19029 | tree stmt = make_node (OMP_TASK); | |
19030 | TREE_TYPE (stmt) = void_node; | |
19031 | OMP_TASK_CLAUSES (stmt) = clauses; | |
19032 | OMP_TASK_BODY (stmt) = NULL_TREE; | |
19033 | SET_EXPR_LOCATION (stmt, loc); | |
19034 | add_stmt (stmt); | |
19035 | } | |
19036 | else | |
19037 | c_finish_omp_taskwait (loc); | |
953ff289 DN |
19038 | } |
19039 | ||
acf0174b JJ |
19040 | /* OpenMP 3.1: |
19041 | # pragma omp taskyield new-line | |
19042 | */ | |
953ff289 | 19043 | |
acf0174b JJ |
19044 | static void |
19045 | c_parser_omp_taskyield (c_parser *parser) | |
953ff289 | 19046 | { |
acf0174b JJ |
19047 | location_t loc = c_parser_peek_token (parser)->location; |
19048 | c_parser_consume_pragma (parser); | |
19049 | c_parser_skip_to_pragma_eol (parser); | |
a68ab351 | 19050 | |
acf0174b JJ |
19051 | c_finish_omp_taskyield (loc); |
19052 | } | |
3ba09659 | 19053 | |
acf0174b JJ |
19054 | /* OpenMP 4.0: |
19055 | # pragma omp taskgroup new-line | |
28567c40 JJ |
19056 | |
19057 | OpenMP 5.0: | |
19058 | # pragma omp taskgroup taskgroup-clause[optseq] new-line | |
acf0174b | 19059 | */ |
953ff289 | 19060 | |
28567c40 JJ |
19061 | #define OMP_TASKGROUP_CLAUSE_MASK \ |
19062 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_TASK_REDUCTION)) | |
19063 | ||
acf0174b | 19064 | static tree |
28567c40 | 19065 | c_parser_omp_taskgroup (location_t loc, c_parser *parser, bool *if_p) |
acf0174b | 19066 | { |
28567c40 JJ |
19067 | tree clauses = c_parser_omp_all_clauses (parser, OMP_TASKGROUP_CLAUSE_MASK, |
19068 | "#pragma omp taskgroup"); | |
19069 | ||
19070 | tree body = c_parser_omp_structured_block (parser, if_p); | |
19071 | return c_finish_omp_taskgroup (loc, body, clauses); | |
acf0174b | 19072 | } |
c9f9eb5d | 19073 | |
acf0174b JJ |
19074 | /* OpenMP 4.0: |
19075 | # pragma omp cancel cancel-clause[optseq] new-line | |
953ff289 | 19076 | |
acf0174b JJ |
19077 | LOC is the location of the #pragma. |
19078 | */ | |
a68ab351 | 19079 | |
acf0174b JJ |
19080 | #define OMP_CANCEL_CLAUSE_MASK \ |
19081 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_PARALLEL) \ | |
19082 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_FOR) \ | |
19083 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_SECTIONS) \ | |
19084 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_TASKGROUP) \ | |
19085 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_IF)) | |
a68ab351 | 19086 | |
acf0174b JJ |
19087 | static void |
19088 | c_parser_omp_cancel (c_parser *parser) | |
19089 | { | |
19090 | location_t loc = c_parser_peek_token (parser)->location; | |
a68ab351 | 19091 | |
acf0174b JJ |
19092 | c_parser_consume_pragma (parser); |
19093 | tree clauses = c_parser_omp_all_clauses (parser, OMP_CANCEL_CLAUSE_MASK, | |
19094 | "#pragma omp cancel"); | |
953ff289 | 19095 | |
acf0174b JJ |
19096 | c_finish_omp_cancel (loc, clauses); |
19097 | } | |
953ff289 | 19098 | |
acf0174b JJ |
19099 | /* OpenMP 4.0: |
19100 | # pragma omp cancellation point cancelpt-clause[optseq] new-line | |
953ff289 | 19101 | |
acf0174b JJ |
19102 | LOC is the location of the #pragma. |
19103 | */ | |
953ff289 | 19104 | |
acf0174b JJ |
19105 | #define OMP_CANCELLATION_POINT_CLAUSE_MASK \ |
19106 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_PARALLEL) \ | |
19107 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_FOR) \ | |
19108 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_SECTIONS) \ | |
19109 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_TASKGROUP)) | |
a68ab351 | 19110 | |
acf0174b | 19111 | static void |
54d19c3b | 19112 | c_parser_omp_cancellation_point (c_parser *parser, enum pragma_context context) |
acf0174b JJ |
19113 | { |
19114 | location_t loc = c_parser_peek_token (parser)->location; | |
19115 | tree clauses; | |
19116 | bool point_seen = false; | |
19117 | ||
19118 | c_parser_consume_pragma (parser); | |
19119 | if (c_parser_next_token_is (parser, CPP_NAME)) | |
a68ab351 | 19120 | { |
acf0174b JJ |
19121 | const char *p = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); |
19122 | if (strcmp (p, "point") == 0) | |
a68ab351 | 19123 | { |
acf0174b JJ |
19124 | c_parser_consume_token (parser); |
19125 | point_seen = true; | |
a68ab351 | 19126 | } |
a68ab351 | 19127 | } |
acf0174b | 19128 | if (!point_seen) |
a68ab351 | 19129 | { |
acf0174b JJ |
19130 | c_parser_error (parser, "expected %<point%>"); |
19131 | c_parser_skip_to_pragma_eol (parser); | |
19132 | return; | |
a68ab351 | 19133 | } |
953ff289 | 19134 | |
54d19c3b TS |
19135 | if (context != pragma_compound) |
19136 | { | |
19137 | if (context == pragma_stmt) | |
a71dbc63 JJ |
19138 | error_at (loc, |
19139 | "%<#pragma %s%> may only be used in compound statements", | |
19140 | "omp cancellation point"); | |
54d19c3b TS |
19141 | else |
19142 | c_parser_error (parser, "expected declaration specifiers"); | |
19143 | c_parser_skip_to_pragma_eol (parser, false); | |
19144 | return; | |
19145 | } | |
19146 | ||
acf0174b JJ |
19147 | clauses |
19148 | = c_parser_omp_all_clauses (parser, OMP_CANCELLATION_POINT_CLAUSE_MASK, | |
19149 | "#pragma omp cancellation point"); | |
c2255bc4 | 19150 | |
acf0174b JJ |
19151 | c_finish_omp_cancellation_point (loc, clauses); |
19152 | } | |
953ff289 | 19153 | |
acf0174b JJ |
19154 | /* OpenMP 4.0: |
19155 | #pragma omp distribute distribute-clause[optseq] new-line | |
19156 | for-loop */ | |
19157 | ||
19158 | #define OMP_DISTRIBUTE_CLAUSE_MASK \ | |
19159 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_PRIVATE) \ | |
19160 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_FIRSTPRIVATE) \ | |
e01d41e5 | 19161 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_LASTPRIVATE) \ |
acf0174b JJ |
19162 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_DIST_SCHEDULE)\ |
19163 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_COLLAPSE)) | |
953ff289 DN |
19164 | |
19165 | static tree | |
acf0174b | 19166 | c_parser_omp_distribute (location_t loc, c_parser *parser, |
dda1bf61 JJ |
19167 | char *p_name, omp_clause_mask mask, tree *cclauses, |
19168 | bool *if_p) | |
953ff289 | 19169 | { |
acf0174b JJ |
19170 | tree clauses, block, ret; |
19171 | ||
19172 | strcat (p_name, " distribute"); | |
19173 | mask |= OMP_DISTRIBUTE_CLAUSE_MASK; | |
19174 | ||
19175 | if (c_parser_next_token_is (parser, CPP_NAME)) | |
19176 | { | |
19177 | const char *p = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
19178 | bool simd = false; | |
19179 | bool parallel = false; | |
19180 | ||
19181 | if (strcmp (p, "simd") == 0) | |
19182 | simd = true; | |
19183 | else | |
19184 | parallel = strcmp (p, "parallel") == 0; | |
19185 | if (parallel || simd) | |
19186 | { | |
19187 | tree cclauses_buf[C_OMP_CLAUSE_SPLIT_COUNT]; | |
19188 | if (cclauses == NULL) | |
19189 | cclauses = cclauses_buf; | |
19190 | c_parser_consume_token (parser); | |
6d7f7e0a TB |
19191 | if (!flag_openmp) /* flag_openmp_simd */ |
19192 | { | |
19193 | if (simd) | |
dda1bf61 JJ |
19194 | return c_parser_omp_simd (loc, parser, p_name, mask, cclauses, |
19195 | if_p); | |
6d7f7e0a TB |
19196 | else |
19197 | return c_parser_omp_parallel (loc, parser, p_name, mask, | |
dda1bf61 | 19198 | cclauses, if_p); |
6d7f7e0a | 19199 | } |
acf0174b JJ |
19200 | block = c_begin_compound_stmt (true); |
19201 | if (simd) | |
dda1bf61 JJ |
19202 | ret = c_parser_omp_simd (loc, parser, p_name, mask, cclauses, |
19203 | if_p); | |
acf0174b | 19204 | else |
dda1bf61 JJ |
19205 | ret = c_parser_omp_parallel (loc, parser, p_name, mask, cclauses, |
19206 | if_p); | |
acf0174b JJ |
19207 | block = c_end_compound_stmt (loc, block, true); |
19208 | if (ret == NULL) | |
19209 | return ret; | |
19210 | ret = make_node (OMP_DISTRIBUTE); | |
19211 | TREE_TYPE (ret) = void_type_node; | |
19212 | OMP_FOR_BODY (ret) = block; | |
19213 | OMP_FOR_CLAUSES (ret) = cclauses[C_OMP_CLAUSE_SPLIT_DISTRIBUTE]; | |
19214 | SET_EXPR_LOCATION (ret, loc); | |
19215 | add_stmt (ret); | |
19216 | return ret; | |
19217 | } | |
19218 | } | |
6d7f7e0a TB |
19219 | if (!flag_openmp) /* flag_openmp_simd */ |
19220 | { | |
62021f64 | 19221 | c_parser_skip_to_pragma_eol (parser, false); |
6d7f7e0a TB |
19222 | return NULL_TREE; |
19223 | } | |
953ff289 | 19224 | |
acf0174b JJ |
19225 | clauses = c_parser_omp_all_clauses (parser, mask, p_name, cclauses == NULL); |
19226 | if (cclauses) | |
19227 | { | |
19228 | omp_split_clauses (loc, OMP_DISTRIBUTE, mask, clauses, cclauses); | |
19229 | clauses = cclauses[C_OMP_CLAUSE_SPLIT_DISTRIBUTE]; | |
19230 | } | |
953ff289 DN |
19231 | |
19232 | block = c_begin_compound_stmt (true); | |
dda1bf61 JJ |
19233 | ret = c_parser_omp_for_loop (loc, parser, OMP_DISTRIBUTE, clauses, NULL, |
19234 | if_p); | |
c2255bc4 | 19235 | block = c_end_compound_stmt (loc, block, true); |
953ff289 DN |
19236 | add_stmt (block); |
19237 | ||
19238 | return ret; | |
19239 | } | |
19240 | ||
acf0174b JJ |
19241 | /* OpenMP 4.0: |
19242 | # pragma omp teams teams-clause[optseq] new-line | |
19243 | structured-block */ | |
c2255bc4 | 19244 | |
acf0174b JJ |
19245 | #define OMP_TEAMS_CLAUSE_MASK \ |
19246 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_PRIVATE) \ | |
19247 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_FIRSTPRIVATE) \ | |
19248 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_SHARED) \ | |
19249 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_REDUCTION) \ | |
19250 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NUM_TEAMS) \ | |
19251 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_THREAD_LIMIT) \ | |
19252 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_DEFAULT)) | |
953ff289 DN |
19253 | |
19254 | static tree | |
acf0174b | 19255 | c_parser_omp_teams (location_t loc, c_parser *parser, |
dda1bf61 JJ |
19256 | char *p_name, omp_clause_mask mask, tree *cclauses, |
19257 | bool *if_p) | |
953ff289 | 19258 | { |
acf0174b JJ |
19259 | tree clauses, block, ret; |
19260 | ||
19261 | strcat (p_name, " teams"); | |
19262 | mask |= OMP_TEAMS_CLAUSE_MASK; | |
19263 | ||
19264 | if (c_parser_next_token_is (parser, CPP_NAME)) | |
19265 | { | |
19266 | const char *p = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
19267 | if (strcmp (p, "distribute") == 0) | |
19268 | { | |
19269 | tree cclauses_buf[C_OMP_CLAUSE_SPLIT_COUNT]; | |
19270 | if (cclauses == NULL) | |
19271 | cclauses = cclauses_buf; | |
19272 | ||
19273 | c_parser_consume_token (parser); | |
6d7f7e0a | 19274 | if (!flag_openmp) /* flag_openmp_simd */ |
dda1bf61 JJ |
19275 | return c_parser_omp_distribute (loc, parser, p_name, mask, |
19276 | cclauses, if_p); | |
28567c40 | 19277 | block = c_begin_omp_parallel (); |
dda1bf61 JJ |
19278 | ret = c_parser_omp_distribute (loc, parser, p_name, mask, cclauses, |
19279 | if_p); | |
acf0174b JJ |
19280 | block = c_end_compound_stmt (loc, block, true); |
19281 | if (ret == NULL) | |
19282 | return ret; | |
19283 | clauses = cclauses[C_OMP_CLAUSE_SPLIT_TEAMS]; | |
19284 | ret = make_node (OMP_TEAMS); | |
19285 | TREE_TYPE (ret) = void_type_node; | |
19286 | OMP_TEAMS_CLAUSES (ret) = clauses; | |
19287 | OMP_TEAMS_BODY (ret) = block; | |
41b37d5e | 19288 | OMP_TEAMS_COMBINED (ret) = 1; |
28567c40 | 19289 | SET_EXPR_LOCATION (ret, loc); |
acf0174b JJ |
19290 | return add_stmt (ret); |
19291 | } | |
554a530f JJ |
19292 | else if (strcmp (p, "loop") == 0) |
19293 | { | |
19294 | tree cclauses_buf[C_OMP_CLAUSE_SPLIT_COUNT]; | |
19295 | if (cclauses == NULL) | |
19296 | cclauses = cclauses_buf; | |
19297 | ||
19298 | c_parser_consume_token (parser); | |
19299 | if (!flag_openmp) /* flag_openmp_simd */ | |
19300 | return c_parser_omp_loop (loc, parser, p_name, mask, cclauses, | |
19301 | if_p); | |
19302 | block = c_begin_omp_parallel (); | |
19303 | ret = c_parser_omp_loop (loc, parser, p_name, mask, cclauses, if_p); | |
19304 | block = c_end_compound_stmt (loc, block, true); | |
19305 | if (ret == NULL) | |
19306 | return ret; | |
19307 | clauses = cclauses[C_OMP_CLAUSE_SPLIT_TEAMS]; | |
19308 | ret = make_node (OMP_TEAMS); | |
19309 | TREE_TYPE (ret) = void_type_node; | |
19310 | OMP_TEAMS_CLAUSES (ret) = clauses; | |
19311 | OMP_TEAMS_BODY (ret) = block; | |
19312 | OMP_TEAMS_COMBINED (ret) = 1; | |
19313 | SET_EXPR_LOCATION (ret, loc); | |
19314 | return add_stmt (ret); | |
19315 | } | |
acf0174b | 19316 | } |
6d7f7e0a TB |
19317 | if (!flag_openmp) /* flag_openmp_simd */ |
19318 | { | |
62021f64 | 19319 | c_parser_skip_to_pragma_eol (parser, false); |
6d7f7e0a TB |
19320 | return NULL_TREE; |
19321 | } | |
acf0174b JJ |
19322 | |
19323 | clauses = c_parser_omp_all_clauses (parser, mask, p_name, cclauses == NULL); | |
19324 | if (cclauses) | |
19325 | { | |
19326 | omp_split_clauses (loc, OMP_TEAMS, mask, clauses, cclauses); | |
19327 | clauses = cclauses[C_OMP_CLAUSE_SPLIT_TEAMS]; | |
19328 | } | |
19329 | ||
19330 | tree stmt = make_node (OMP_TEAMS); | |
19331 | TREE_TYPE (stmt) = void_type_node; | |
19332 | OMP_TEAMS_CLAUSES (stmt) = clauses; | |
28567c40 JJ |
19333 | block = c_begin_omp_parallel (); |
19334 | add_stmt (c_parser_omp_structured_block (parser, if_p)); | |
19335 | OMP_TEAMS_BODY (stmt) = c_end_compound_stmt (loc, block, true); | |
19336 | SET_EXPR_LOCATION (stmt, loc); | |
acf0174b JJ |
19337 | |
19338 | return add_stmt (stmt); | |
953ff289 DN |
19339 | } |
19340 | ||
acf0174b JJ |
19341 | /* OpenMP 4.0: |
19342 | # pragma omp target data target-data-clause[optseq] new-line | |
19343 | structured-block */ | |
c2255bc4 | 19344 | |
acf0174b JJ |
19345 | #define OMP_TARGET_DATA_CLAUSE_MASK \ |
19346 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_DEVICE) \ | |
19347 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_MAP) \ | |
d9a6bd32 | 19348 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_IF) \ |
398e3feb JJ |
19349 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_USE_DEVICE_PTR) \ |
19350 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_USE_DEVICE_ADDR)) | |
953ff289 DN |
19351 | |
19352 | static tree | |
dda1bf61 | 19353 | c_parser_omp_target_data (location_t loc, c_parser *parser, bool *if_p) |
953ff289 | 19354 | { |
d9a6bd32 | 19355 | tree clauses |
acf0174b JJ |
19356 | = c_parser_omp_all_clauses (parser, OMP_TARGET_DATA_CLAUSE_MASK, |
19357 | "#pragma omp target data"); | |
d9a6bd32 JJ |
19358 | int map_seen = 0; |
19359 | for (tree *pc = &clauses; *pc;) | |
19360 | { | |
19361 | if (OMP_CLAUSE_CODE (*pc) == OMP_CLAUSE_MAP) | |
19362 | switch (OMP_CLAUSE_MAP_KIND (*pc)) | |
19363 | { | |
19364 | case GOMP_MAP_TO: | |
19365 | case GOMP_MAP_ALWAYS_TO: | |
19366 | case GOMP_MAP_FROM: | |
19367 | case GOMP_MAP_ALWAYS_FROM: | |
19368 | case GOMP_MAP_TOFROM: | |
19369 | case GOMP_MAP_ALWAYS_TOFROM: | |
19370 | case GOMP_MAP_ALLOC: | |
19371 | map_seen = 3; | |
19372 | break; | |
19373 | case GOMP_MAP_FIRSTPRIVATE_POINTER: | |
e01d41e5 | 19374 | case GOMP_MAP_ALWAYS_POINTER: |
d9a6bd32 JJ |
19375 | break; |
19376 | default: | |
19377 | map_seen |= 1; | |
19378 | error_at (OMP_CLAUSE_LOCATION (*pc), | |
19379 | "%<#pragma omp target data%> with map-type other " | |
19380 | "than %<to%>, %<from%>, %<tofrom%> or %<alloc%> " | |
19381 | "on %<map%> clause"); | |
19382 | *pc = OMP_CLAUSE_CHAIN (*pc); | |
19383 | continue; | |
19384 | } | |
398e3feb JJ |
19385 | else if (OMP_CLAUSE_CODE (*pc) == OMP_CLAUSE_USE_DEVICE_PTR |
19386 | || OMP_CLAUSE_CODE (*pc) == OMP_CLAUSE_USE_DEVICE_ADDR) | |
28567c40 | 19387 | map_seen = 3; |
d9a6bd32 JJ |
19388 | pc = &OMP_CLAUSE_CHAIN (*pc); |
19389 | } | |
19390 | ||
19391 | if (map_seen != 3) | |
19392 | { | |
19393 | if (map_seen == 0) | |
19394 | error_at (loc, | |
19395 | "%<#pragma omp target data%> must contain at least " | |
398e3feb JJ |
19396 | "one %<map%>, %<use_device_ptr%> or %<use_device_addr%> " |
19397 | "clause"); | |
d9a6bd32 JJ |
19398 | return NULL_TREE; |
19399 | } | |
19400 | ||
19401 | tree stmt = make_node (OMP_TARGET_DATA); | |
19402 | TREE_TYPE (stmt) = void_type_node; | |
19403 | OMP_TARGET_DATA_CLAUSES (stmt) = clauses; | |
acf0174b JJ |
19404 | keep_next_level (); |
19405 | tree block = c_begin_compound_stmt (true); | |
dda1bf61 | 19406 | add_stmt (c_parser_omp_structured_block (parser, if_p)); |
acf0174b | 19407 | OMP_TARGET_DATA_BODY (stmt) = c_end_compound_stmt (loc, block, true); |
953ff289 | 19408 | |
acf0174b JJ |
19409 | SET_EXPR_LOCATION (stmt, loc); |
19410 | return add_stmt (stmt); | |
19411 | } | |
953ff289 | 19412 | |
acf0174b JJ |
19413 | /* OpenMP 4.0: |
19414 | # pragma omp target update target-update-clause[optseq] new-line */ | |
c2255bc4 | 19415 | |
acf0174b JJ |
19416 | #define OMP_TARGET_UPDATE_CLAUSE_MASK \ |
19417 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_FROM) \ | |
19418 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_TO) \ | |
19419 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_DEVICE) \ | |
d9a6bd32 JJ |
19420 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_IF) \ |
19421 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_DEPEND) \ | |
19422 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NOWAIT)) | |
953ff289 | 19423 | |
acf0174b JJ |
19424 | static bool |
19425 | c_parser_omp_target_update (location_t loc, c_parser *parser, | |
19426 | enum pragma_context context) | |
953ff289 | 19427 | { |
acf0174b JJ |
19428 | if (context == pragma_stmt) |
19429 | { | |
a71dbc63 JJ |
19430 | error_at (loc, "%<#pragma %s%> may only be used in compound statements", |
19431 | "omp target update"); | |
aec17bfe | 19432 | c_parser_skip_to_pragma_eol (parser, false); |
acf0174b JJ |
19433 | return false; |
19434 | } | |
953ff289 | 19435 | |
acf0174b JJ |
19436 | tree clauses |
19437 | = c_parser_omp_all_clauses (parser, OMP_TARGET_UPDATE_CLAUSE_MASK, | |
19438 | "#pragma omp target update"); | |
629b3d75 MJ |
19439 | if (omp_find_clause (clauses, OMP_CLAUSE_TO) == NULL_TREE |
19440 | && omp_find_clause (clauses, OMP_CLAUSE_FROM) == NULL_TREE) | |
953ff289 | 19441 | { |
acf0174b | 19442 | error_at (loc, |
06aca1d5 | 19443 | "%<#pragma omp target update%> must contain at least one " |
acf0174b JJ |
19444 | "%<from%> or %<to%> clauses"); |
19445 | return false; | |
953ff289 DN |
19446 | } |
19447 | ||
acf0174b JJ |
19448 | tree stmt = make_node (OMP_TARGET_UPDATE); |
19449 | TREE_TYPE (stmt) = void_type_node; | |
19450 | OMP_TARGET_UPDATE_CLAUSES (stmt) = clauses; | |
19451 | SET_EXPR_LOCATION (stmt, loc); | |
19452 | add_stmt (stmt); | |
19453 | return false; | |
19454 | } | |
953ff289 | 19455 | |
d9a6bd32 JJ |
19456 | /* OpenMP 4.5: |
19457 | # pragma omp target enter data target-data-clause[optseq] new-line */ | |
19458 | ||
19459 | #define OMP_TARGET_ENTER_DATA_CLAUSE_MASK \ | |
19460 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_DEVICE) \ | |
19461 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_MAP) \ | |
19462 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_IF) \ | |
19463 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_DEPEND) \ | |
19464 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NOWAIT)) | |
19465 | ||
19466 | static tree | |
19467 | c_parser_omp_target_enter_data (location_t loc, c_parser *parser, | |
19468 | enum pragma_context context) | |
19469 | { | |
19470 | bool data_seen = false; | |
19471 | if (c_parser_next_token_is (parser, CPP_NAME)) | |
19472 | { | |
19473 | const char *p = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
19474 | if (strcmp (p, "data") == 0) | |
19475 | { | |
19476 | c_parser_consume_token (parser); | |
19477 | data_seen = true; | |
19478 | } | |
19479 | } | |
19480 | if (!data_seen) | |
19481 | { | |
19482 | c_parser_error (parser, "expected %<data%>"); | |
19483 | c_parser_skip_to_pragma_eol (parser); | |
19484 | return NULL_TREE; | |
19485 | } | |
19486 | ||
19487 | if (context == pragma_stmt) | |
19488 | { | |
a71dbc63 JJ |
19489 | error_at (loc, "%<#pragma %s%> may only be used in compound statements", |
19490 | "omp target enter data"); | |
aec17bfe | 19491 | c_parser_skip_to_pragma_eol (parser, false); |
d9a6bd32 JJ |
19492 | return NULL_TREE; |
19493 | } | |
19494 | ||
19495 | tree clauses | |
19496 | = c_parser_omp_all_clauses (parser, OMP_TARGET_ENTER_DATA_CLAUSE_MASK, | |
19497 | "#pragma omp target enter data"); | |
19498 | int map_seen = 0; | |
19499 | for (tree *pc = &clauses; *pc;) | |
19500 | { | |
19501 | if (OMP_CLAUSE_CODE (*pc) == OMP_CLAUSE_MAP) | |
19502 | switch (OMP_CLAUSE_MAP_KIND (*pc)) | |
19503 | { | |
19504 | case GOMP_MAP_TO: | |
19505 | case GOMP_MAP_ALWAYS_TO: | |
19506 | case GOMP_MAP_ALLOC: | |
19507 | map_seen = 3; | |
19508 | break; | |
19509 | case GOMP_MAP_FIRSTPRIVATE_POINTER: | |
e01d41e5 | 19510 | case GOMP_MAP_ALWAYS_POINTER: |
d9a6bd32 JJ |
19511 | break; |
19512 | default: | |
19513 | map_seen |= 1; | |
19514 | error_at (OMP_CLAUSE_LOCATION (*pc), | |
19515 | "%<#pragma omp target enter data%> with map-type other " | |
19516 | "than %<to%> or %<alloc%> on %<map%> clause"); | |
19517 | *pc = OMP_CLAUSE_CHAIN (*pc); | |
19518 | continue; | |
19519 | } | |
19520 | pc = &OMP_CLAUSE_CHAIN (*pc); | |
19521 | } | |
19522 | ||
19523 | if (map_seen != 3) | |
19524 | { | |
19525 | if (map_seen == 0) | |
19526 | error_at (loc, | |
19527 | "%<#pragma omp target enter data%> must contain at least " | |
19528 | "one %<map%> clause"); | |
19529 | return NULL_TREE; | |
19530 | } | |
19531 | ||
19532 | tree stmt = make_node (OMP_TARGET_ENTER_DATA); | |
19533 | TREE_TYPE (stmt) = void_type_node; | |
19534 | OMP_TARGET_ENTER_DATA_CLAUSES (stmt) = clauses; | |
19535 | SET_EXPR_LOCATION (stmt, loc); | |
19536 | add_stmt (stmt); | |
19537 | return stmt; | |
19538 | } | |
19539 | ||
19540 | /* OpenMP 4.5: | |
19541 | # pragma omp target exit data target-data-clause[optseq] new-line */ | |
19542 | ||
19543 | #define OMP_TARGET_EXIT_DATA_CLAUSE_MASK \ | |
19544 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_DEVICE) \ | |
19545 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_MAP) \ | |
19546 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_IF) \ | |
19547 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_DEPEND) \ | |
19548 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NOWAIT)) | |
19549 | ||
19550 | static tree | |
19551 | c_parser_omp_target_exit_data (location_t loc, c_parser *parser, | |
19552 | enum pragma_context context) | |
19553 | { | |
19554 | bool data_seen = false; | |
19555 | if (c_parser_next_token_is (parser, CPP_NAME)) | |
19556 | { | |
19557 | const char *p = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
19558 | if (strcmp (p, "data") == 0) | |
19559 | { | |
19560 | c_parser_consume_token (parser); | |
19561 | data_seen = true; | |
19562 | } | |
19563 | } | |
19564 | if (!data_seen) | |
19565 | { | |
19566 | c_parser_error (parser, "expected %<data%>"); | |
19567 | c_parser_skip_to_pragma_eol (parser); | |
19568 | return NULL_TREE; | |
19569 | } | |
19570 | ||
19571 | if (context == pragma_stmt) | |
19572 | { | |
a71dbc63 JJ |
19573 | error_at (loc, "%<#pragma %s%> may only be used in compound statements", |
19574 | "omp target exit data"); | |
aec17bfe | 19575 | c_parser_skip_to_pragma_eol (parser, false); |
d9a6bd32 JJ |
19576 | return NULL_TREE; |
19577 | } | |
19578 | ||
19579 | tree clauses | |
19580 | = c_parser_omp_all_clauses (parser, OMP_TARGET_EXIT_DATA_CLAUSE_MASK, | |
19581 | "#pragma omp target exit data"); | |
19582 | ||
19583 | int map_seen = 0; | |
19584 | for (tree *pc = &clauses; *pc;) | |
19585 | { | |
19586 | if (OMP_CLAUSE_CODE (*pc) == OMP_CLAUSE_MAP) | |
19587 | switch (OMP_CLAUSE_MAP_KIND (*pc)) | |
19588 | { | |
19589 | case GOMP_MAP_FROM: | |
19590 | case GOMP_MAP_ALWAYS_FROM: | |
19591 | case GOMP_MAP_RELEASE: | |
19592 | case GOMP_MAP_DELETE: | |
19593 | map_seen = 3; | |
19594 | break; | |
19595 | case GOMP_MAP_FIRSTPRIVATE_POINTER: | |
e01d41e5 | 19596 | case GOMP_MAP_ALWAYS_POINTER: |
d9a6bd32 JJ |
19597 | break; |
19598 | default: | |
19599 | map_seen |= 1; | |
19600 | error_at (OMP_CLAUSE_LOCATION (*pc), | |
19601 | "%<#pragma omp target exit data%> with map-type other " | |
883c8f06 | 19602 | "than %<from%>, %<release%> or %<delete%> on %<map%>" |
d9a6bd32 JJ |
19603 | " clause"); |
19604 | *pc = OMP_CLAUSE_CHAIN (*pc); | |
19605 | continue; | |
19606 | } | |
19607 | pc = &OMP_CLAUSE_CHAIN (*pc); | |
19608 | } | |
19609 | ||
19610 | if (map_seen != 3) | |
19611 | { | |
19612 | if (map_seen == 0) | |
19613 | error_at (loc, | |
19614 | "%<#pragma omp target exit data%> must contain at least one " | |
19615 | "%<map%> clause"); | |
19616 | return NULL_TREE; | |
19617 | } | |
19618 | ||
19619 | tree stmt = make_node (OMP_TARGET_EXIT_DATA); | |
19620 | TREE_TYPE (stmt) = void_type_node; | |
19621 | OMP_TARGET_EXIT_DATA_CLAUSES (stmt) = clauses; | |
19622 | SET_EXPR_LOCATION (stmt, loc); | |
19623 | add_stmt (stmt); | |
19624 | return stmt; | |
19625 | } | |
19626 | ||
acf0174b JJ |
19627 | /* OpenMP 4.0: |
19628 | # pragma omp target target-clause[optseq] new-line | |
19629 | structured-block */ | |
953ff289 | 19630 | |
acf0174b JJ |
19631 | #define OMP_TARGET_CLAUSE_MASK \ |
19632 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_DEVICE) \ | |
19633 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_MAP) \ | |
d9a6bd32 JJ |
19634 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_IF) \ |
19635 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_DEPEND) \ | |
19636 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NOWAIT) \ | |
19637 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_PRIVATE) \ | |
19638 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_FIRSTPRIVATE) \ | |
19639 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_DEFAULTMAP) \ | |
19640 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_IS_DEVICE_PTR)) | |
953ff289 | 19641 | |
acf0174b | 19642 | static bool |
dda1bf61 | 19643 | c_parser_omp_target (c_parser *parser, enum pragma_context context, bool *if_p) |
acf0174b JJ |
19644 | { |
19645 | location_t loc = c_parser_peek_token (parser)->location; | |
19646 | c_parser_consume_pragma (parser); | |
d9a6bd32 | 19647 | tree *pc = NULL, stmt, block; |
953ff289 | 19648 | |
acf0174b JJ |
19649 | if (context != pragma_stmt && context != pragma_compound) |
19650 | { | |
19651 | c_parser_error (parser, "expected declaration specifiers"); | |
19652 | c_parser_skip_to_pragma_eol (parser); | |
19653 | return false; | |
953ff289 DN |
19654 | } |
19655 | ||
28567c40 JJ |
19656 | if (flag_openmp) |
19657 | omp_requires_mask | |
19658 | = (enum omp_requires) (omp_requires_mask | OMP_REQUIRES_TARGET_USED); | |
19659 | ||
acf0174b | 19660 | if (c_parser_next_token_is (parser, CPP_NAME)) |
953ff289 | 19661 | { |
acf0174b | 19662 | const char *p = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); |
d9a6bd32 | 19663 | enum tree_code ccode = ERROR_MARK; |
953ff289 | 19664 | |
6d7f7e0a | 19665 | if (strcmp (p, "teams") == 0) |
d9a6bd32 JJ |
19666 | ccode = OMP_TEAMS; |
19667 | else if (strcmp (p, "parallel") == 0) | |
19668 | ccode = OMP_PARALLEL; | |
19669 | else if (strcmp (p, "simd") == 0) | |
19670 | ccode = OMP_SIMD; | |
19671 | if (ccode != ERROR_MARK) | |
acf0174b JJ |
19672 | { |
19673 | tree cclauses[C_OMP_CLAUSE_SPLIT_COUNT]; | |
19674 | char p_name[sizeof ("#pragma omp target teams distribute " | |
19675 | "parallel for simd")]; | |
953ff289 | 19676 | |
acf0174b | 19677 | c_parser_consume_token (parser); |
e7bd1de1 | 19678 | strcpy (p_name, "#pragma omp target"); |
6d7f7e0a | 19679 | if (!flag_openmp) /* flag_openmp_simd */ |
edbba2ce | 19680 | { |
d9a6bd32 JJ |
19681 | tree stmt; |
19682 | switch (ccode) | |
19683 | { | |
19684 | case OMP_TEAMS: | |
19685 | stmt = c_parser_omp_teams (loc, parser, p_name, | |
19686 | OMP_TARGET_CLAUSE_MASK, | |
dda1bf61 | 19687 | cclauses, if_p); |
d9a6bd32 JJ |
19688 | break; |
19689 | case OMP_PARALLEL: | |
19690 | stmt = c_parser_omp_parallel (loc, parser, p_name, | |
19691 | OMP_TARGET_CLAUSE_MASK, | |
dda1bf61 | 19692 | cclauses, if_p); |
d9a6bd32 JJ |
19693 | break; |
19694 | case OMP_SIMD: | |
19695 | stmt = c_parser_omp_simd (loc, parser, p_name, | |
19696 | OMP_TARGET_CLAUSE_MASK, | |
dda1bf61 | 19697 | cclauses, if_p); |
d9a6bd32 JJ |
19698 | break; |
19699 | default: | |
19700 | gcc_unreachable (); | |
19701 | } | |
edbba2ce TS |
19702 | return stmt != NULL_TREE; |
19703 | } | |
acf0174b | 19704 | keep_next_level (); |
d9a6bd32 JJ |
19705 | tree block = c_begin_compound_stmt (true), ret; |
19706 | switch (ccode) | |
19707 | { | |
19708 | case OMP_TEAMS: | |
19709 | ret = c_parser_omp_teams (loc, parser, p_name, | |
dda1bf61 JJ |
19710 | OMP_TARGET_CLAUSE_MASK, cclauses, |
19711 | if_p); | |
d9a6bd32 JJ |
19712 | break; |
19713 | case OMP_PARALLEL: | |
19714 | ret = c_parser_omp_parallel (loc, parser, p_name, | |
dda1bf61 JJ |
19715 | OMP_TARGET_CLAUSE_MASK, cclauses, |
19716 | if_p); | |
d9a6bd32 JJ |
19717 | break; |
19718 | case OMP_SIMD: | |
19719 | ret = c_parser_omp_simd (loc, parser, p_name, | |
dda1bf61 JJ |
19720 | OMP_TARGET_CLAUSE_MASK, cclauses, |
19721 | if_p); | |
d9a6bd32 JJ |
19722 | break; |
19723 | default: | |
19724 | gcc_unreachable (); | |
19725 | } | |
acf0174b | 19726 | block = c_end_compound_stmt (loc, block, true); |
edbba2ce TS |
19727 | if (ret == NULL_TREE) |
19728 | return false; | |
e01d41e5 JJ |
19729 | if (ccode == OMP_TEAMS) |
19730 | { | |
19731 | /* For combined target teams, ensure the num_teams and | |
19732 | thread_limit clause expressions are evaluated on the host, | |
19733 | before entering the target construct. */ | |
19734 | tree c; | |
19735 | for (c = cclauses[C_OMP_CLAUSE_SPLIT_TEAMS]; | |
19736 | c; c = OMP_CLAUSE_CHAIN (c)) | |
19737 | if ((OMP_CLAUSE_CODE (c) == OMP_CLAUSE_NUM_TEAMS | |
19738 | || OMP_CLAUSE_CODE (c) == OMP_CLAUSE_THREAD_LIMIT) | |
19739 | && TREE_CODE (OMP_CLAUSE_OPERAND (c, 0)) != INTEGER_CST) | |
19740 | { | |
19741 | tree expr = OMP_CLAUSE_OPERAND (c, 0); | |
19742 | tree tmp = create_tmp_var_raw (TREE_TYPE (expr)); | |
19743 | expr = build4 (TARGET_EXPR, TREE_TYPE (expr), tmp, | |
19744 | expr, NULL_TREE, NULL_TREE); | |
19745 | add_stmt (expr); | |
19746 | OMP_CLAUSE_OPERAND (c, 0) = expr; | |
19747 | tree tc = build_omp_clause (OMP_CLAUSE_LOCATION (c), | |
19748 | OMP_CLAUSE_FIRSTPRIVATE); | |
19749 | OMP_CLAUSE_DECL (tc) = tmp; | |
19750 | OMP_CLAUSE_CHAIN (tc) | |
19751 | = cclauses[C_OMP_CLAUSE_SPLIT_TARGET]; | |
19752 | cclauses[C_OMP_CLAUSE_SPLIT_TARGET] = tc; | |
19753 | } | |
19754 | } | |
acf0174b JJ |
19755 | tree stmt = make_node (OMP_TARGET); |
19756 | TREE_TYPE (stmt) = void_type_node; | |
19757 | OMP_TARGET_CLAUSES (stmt) = cclauses[C_OMP_CLAUSE_SPLIT_TARGET]; | |
19758 | OMP_TARGET_BODY (stmt) = block; | |
d9a6bd32 | 19759 | OMP_TARGET_COMBINED (stmt) = 1; |
28567c40 | 19760 | SET_EXPR_LOCATION (stmt, loc); |
acf0174b | 19761 | add_stmt (stmt); |
d9a6bd32 JJ |
19762 | pc = &OMP_TARGET_CLAUSES (stmt); |
19763 | goto check_clauses; | |
acf0174b | 19764 | } |
6d7f7e0a TB |
19765 | else if (!flag_openmp) /* flag_openmp_simd */ |
19766 | { | |
62021f64 | 19767 | c_parser_skip_to_pragma_eol (parser, false); |
edbba2ce | 19768 | return false; |
6d7f7e0a TB |
19769 | } |
19770 | else if (strcmp (p, "data") == 0) | |
19771 | { | |
19772 | c_parser_consume_token (parser); | |
dda1bf61 | 19773 | c_parser_omp_target_data (loc, parser, if_p); |
6d7f7e0a TB |
19774 | return true; |
19775 | } | |
d9a6bd32 JJ |
19776 | else if (strcmp (p, "enter") == 0) |
19777 | { | |
19778 | c_parser_consume_token (parser); | |
19779 | c_parser_omp_target_enter_data (loc, parser, context); | |
19780 | return false; | |
19781 | } | |
19782 | else if (strcmp (p, "exit") == 0) | |
19783 | { | |
19784 | c_parser_consume_token (parser); | |
19785 | c_parser_omp_target_exit_data (loc, parser, context); | |
19786 | return false; | |
19787 | } | |
6d7f7e0a TB |
19788 | else if (strcmp (p, "update") == 0) |
19789 | { | |
19790 | c_parser_consume_token (parser); | |
19791 | return c_parser_omp_target_update (loc, parser, context); | |
19792 | } | |
953ff289 | 19793 | } |
bcac0b4d JJ |
19794 | if (!flag_openmp) /* flag_openmp_simd */ |
19795 | { | |
19796 | c_parser_skip_to_pragma_eol (parser, false); | |
19797 | return false; | |
19798 | } | |
953ff289 | 19799 | |
d9a6bd32 | 19800 | stmt = make_node (OMP_TARGET); |
953ff289 | 19801 | TREE_TYPE (stmt) = void_type_node; |
953ff289 | 19802 | |
acf0174b JJ |
19803 | OMP_TARGET_CLAUSES (stmt) |
19804 | = c_parser_omp_all_clauses (parser, OMP_TARGET_CLAUSE_MASK, | |
19805 | "#pragma omp target"); | |
d9a6bd32 | 19806 | pc = &OMP_TARGET_CLAUSES (stmt); |
acf0174b | 19807 | keep_next_level (); |
d9a6bd32 | 19808 | block = c_begin_compound_stmt (true); |
dda1bf61 | 19809 | add_stmt (c_parser_omp_structured_block (parser, if_p)); |
acf0174b JJ |
19810 | OMP_TARGET_BODY (stmt) = c_end_compound_stmt (loc, block, true); |
19811 | ||
19812 | SET_EXPR_LOCATION (stmt, loc); | |
19813 | add_stmt (stmt); | |
d9a6bd32 JJ |
19814 | |
19815 | check_clauses: | |
19816 | while (*pc) | |
19817 | { | |
19818 | if (OMP_CLAUSE_CODE (*pc) == OMP_CLAUSE_MAP) | |
19819 | switch (OMP_CLAUSE_MAP_KIND (*pc)) | |
19820 | { | |
19821 | case GOMP_MAP_TO: | |
19822 | case GOMP_MAP_ALWAYS_TO: | |
19823 | case GOMP_MAP_FROM: | |
19824 | case GOMP_MAP_ALWAYS_FROM: | |
19825 | case GOMP_MAP_TOFROM: | |
19826 | case GOMP_MAP_ALWAYS_TOFROM: | |
19827 | case GOMP_MAP_ALLOC: | |
19828 | case GOMP_MAP_FIRSTPRIVATE_POINTER: | |
e01d41e5 | 19829 | case GOMP_MAP_ALWAYS_POINTER: |
d9a6bd32 JJ |
19830 | break; |
19831 | default: | |
19832 | error_at (OMP_CLAUSE_LOCATION (*pc), | |
19833 | "%<#pragma omp target%> with map-type other " | |
19834 | "than %<to%>, %<from%>, %<tofrom%> or %<alloc%> " | |
19835 | "on %<map%> clause"); | |
19836 | *pc = OMP_CLAUSE_CHAIN (*pc); | |
19837 | continue; | |
19838 | } | |
19839 | pc = &OMP_CLAUSE_CHAIN (*pc); | |
19840 | } | |
acf0174b JJ |
19841 | return true; |
19842 | } | |
19843 | ||
19844 | /* OpenMP 4.0: | |
94e7f906 JJ |
19845 | # pragma omp declare simd declare-simd-clauses[optseq] new-line |
19846 | ||
19847 | OpenMP 5.0: | |
19848 | # pragma omp declare variant (identifier) match(context-selector) new-line | |
19849 | */ | |
acf0174b JJ |
19850 | |
19851 | #define OMP_DECLARE_SIMD_CLAUSE_MASK \ | |
19852 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_SIMDLEN) \ | |
19853 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_LINEAR) \ | |
19854 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_ALIGNED) \ | |
19855 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_UNIFORM) \ | |
19856 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_INBRANCH) \ | |
19857 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NOTINBRANCH)) | |
19858 | ||
19859 | static void | |
19860 | c_parser_omp_declare_simd (c_parser *parser, enum pragma_context context) | |
19861 | { | |
94e7f906 JJ |
19862 | c_token *token = c_parser_peek_token (parser); |
19863 | gcc_assert (token->type == CPP_NAME); | |
19864 | tree kind = token->value; | |
19865 | gcc_assert (strcmp (IDENTIFIER_POINTER (kind), "simd") == 0 | |
19866 | || strcmp (IDENTIFIER_POINTER (kind), "variant") == 0); | |
19867 | ||
8c681247 | 19868 | auto_vec<c_token> clauses; |
acf0174b JJ |
19869 | while (c_parser_next_token_is_not (parser, CPP_PRAGMA_EOL)) |
19870 | { | |
19871 | c_token *token = c_parser_peek_token (parser); | |
19872 | if (token->type == CPP_EOF) | |
19873 | { | |
19874 | c_parser_skip_to_pragma_eol (parser); | |
acf0174b JJ |
19875 | return; |
19876 | } | |
19877 | clauses.safe_push (*token); | |
19878 | c_parser_consume_token (parser); | |
19879 | } | |
19880 | clauses.safe_push (*c_parser_peek_token (parser)); | |
19881 | c_parser_skip_to_pragma_eol (parser); | |
19882 | ||
19883 | while (c_parser_next_token_is (parser, CPP_PRAGMA)) | |
19884 | { | |
94e7f906 | 19885 | if (c_parser_peek_token (parser)->pragma_kind != PRAGMA_OMP_DECLARE |
acf0174b | 19886 | || c_parser_peek_2nd_token (parser)->type != CPP_NAME |
94e7f906 | 19887 | || c_parser_peek_2nd_token (parser)->value != kind) |
acf0174b | 19888 | { |
94e7f906 JJ |
19889 | error ("%<#pragma omp declare %s%> must be followed by " |
19890 | "function declaration or definition or another " | |
19891 | "%<#pragma omp declare %s%>", | |
19892 | IDENTIFIER_POINTER (kind), IDENTIFIER_POINTER (kind)); | |
acf0174b JJ |
19893 | return; |
19894 | } | |
19895 | c_parser_consume_pragma (parser); | |
19896 | while (c_parser_next_token_is_not (parser, CPP_PRAGMA_EOL)) | |
19897 | { | |
19898 | c_token *token = c_parser_peek_token (parser); | |
19899 | if (token->type == CPP_EOF) | |
19900 | { | |
19901 | c_parser_skip_to_pragma_eol (parser); | |
acf0174b JJ |
19902 | return; |
19903 | } | |
19904 | clauses.safe_push (*token); | |
19905 | c_parser_consume_token (parser); | |
19906 | } | |
19907 | clauses.safe_push (*c_parser_peek_token (parser)); | |
19908 | c_parser_skip_to_pragma_eol (parser); | |
19909 | } | |
19910 | ||
19911 | /* Make sure nothing tries to read past the end of the tokens. */ | |
19912 | c_token eof_token; | |
19913 | memset (&eof_token, 0, sizeof (eof_token)); | |
19914 | eof_token.type = CPP_EOF; | |
19915 | clauses.safe_push (eof_token); | |
19916 | clauses.safe_push (eof_token); | |
19917 | ||
19918 | switch (context) | |
19919 | { | |
19920 | case pragma_external: | |
19921 | if (c_parser_next_token_is (parser, CPP_KEYWORD) | |
19922 | && c_parser_peek_token (parser)->keyword == RID_EXTENSION) | |
19923 | { | |
19924 | int ext = disable_extension_diagnostics (); | |
19925 | do | |
19926 | c_parser_consume_token (parser); | |
19927 | while (c_parser_next_token_is (parser, CPP_KEYWORD) | |
19928 | && c_parser_peek_token (parser)->keyword == RID_EXTENSION); | |
19929 | c_parser_declaration_or_fndef (parser, true, true, true, false, true, | |
19930 | NULL, clauses); | |
19931 | restore_extension_diagnostics (ext); | |
19932 | } | |
19933 | else | |
19934 | c_parser_declaration_or_fndef (parser, true, true, true, false, true, | |
19935 | NULL, clauses); | |
19936 | break; | |
19937 | case pragma_struct: | |
19938 | case pragma_param: | |
41521dee | 19939 | case pragma_stmt: |
94e7f906 JJ |
19940 | error ("%<#pragma omp declare %s%> must be followed by " |
19941 | "function declaration or definition", | |
19942 | IDENTIFIER_POINTER (kind)); | |
acf0174b JJ |
19943 | break; |
19944 | case pragma_compound: | |
acf0174b JJ |
19945 | if (c_parser_next_token_is (parser, CPP_KEYWORD) |
19946 | && c_parser_peek_token (parser)->keyword == RID_EXTENSION) | |
19947 | { | |
19948 | int ext = disable_extension_diagnostics (); | |
19949 | do | |
19950 | c_parser_consume_token (parser); | |
19951 | while (c_parser_next_token_is (parser, CPP_KEYWORD) | |
19952 | && c_parser_peek_token (parser)->keyword == RID_EXTENSION); | |
19953 | if (c_parser_next_tokens_start_declaration (parser)) | |
19954 | { | |
19955 | c_parser_declaration_or_fndef (parser, true, true, true, true, | |
19956 | true, NULL, clauses); | |
19957 | restore_extension_diagnostics (ext); | |
19958 | break; | |
19959 | } | |
19960 | restore_extension_diagnostics (ext); | |
19961 | } | |
19962 | else if (c_parser_next_tokens_start_declaration (parser)) | |
19963 | { | |
19964 | c_parser_declaration_or_fndef (parser, true, true, true, true, true, | |
19965 | NULL, clauses); | |
19966 | break; | |
19967 | } | |
94e7f906 JJ |
19968 | error ("%<#pragma omp declare %s%> must be followed by " |
19969 | "function declaration or definition", | |
19970 | IDENTIFIER_POINTER (kind)); | |
acf0174b JJ |
19971 | break; |
19972 | default: | |
19973 | gcc_unreachable (); | |
19974 | } | |
953ff289 DN |
19975 | } |
19976 | ||
94e7f906 JJ |
19977 | static const char *const omp_construct_selectors[] = { |
19978 | "simd", "target", "teams", "parallel", "for", NULL }; | |
19979 | static const char *const omp_device_selectors[] = { | |
19980 | "kind", "isa", "arch", NULL }; | |
19981 | static const char *const omp_implementation_selectors[] = { | |
19982 | "vendor", "extension", "atomic_default_mem_order", "unified_address", | |
19983 | "unified_shared_memory", "dynamic_allocators", "reverse_offload", NULL }; | |
19984 | static const char *const omp_user_selectors[] = { | |
19985 | "condition", NULL }; | |
19986 | ||
19987 | /* OpenMP 5.0: | |
19988 | ||
19989 | trait-selector: | |
19990 | trait-selector-name[([trait-score:]trait-property[,trait-property[,...]])] | |
19991 | ||
19992 | trait-score: | |
19993 | score(score-expression) */ | |
19994 | ||
19995 | static tree | |
19996 | c_parser_omp_context_selector (c_parser *parser, tree set, tree parms) | |
19997 | { | |
19998 | tree ret = NULL_TREE; | |
19999 | do | |
20000 | { | |
20001 | tree selector; | |
20002 | if (c_parser_next_token_is (parser, CPP_KEYWORD) | |
20003 | || c_parser_next_token_is (parser, CPP_NAME)) | |
20004 | selector = c_parser_peek_token (parser)->value; | |
20005 | else | |
20006 | { | |
20007 | c_parser_error (parser, "expected trait selector name"); | |
20008 | return error_mark_node; | |
20009 | } | |
20010 | ||
20011 | tree properties = NULL_TREE; | |
20012 | const char *const *selectors = NULL; | |
20013 | bool allow_score = true; | |
20014 | bool allow_user = false; | |
20015 | int property_limit = 0; | |
b2417b59 JJ |
20016 | enum { CTX_PROPERTY_NONE, CTX_PROPERTY_USER, CTX_PROPERTY_NAME_LIST, |
20017 | CTX_PROPERTY_ID, CTX_PROPERTY_EXPR, | |
20018 | CTX_PROPERTY_SIMD } property_kind = CTX_PROPERTY_NONE; | |
94e7f906 JJ |
20019 | switch (IDENTIFIER_POINTER (set)[0]) |
20020 | { | |
20021 | case 'c': /* construct */ | |
20022 | selectors = omp_construct_selectors; | |
20023 | allow_score = false; | |
20024 | property_limit = 1; | |
20025 | property_kind = CTX_PROPERTY_SIMD; | |
20026 | break; | |
20027 | case 'd': /* device */ | |
20028 | selectors = omp_device_selectors; | |
20029 | allow_score = false; | |
20030 | allow_user = true; | |
20031 | property_limit = 3; | |
b2417b59 | 20032 | property_kind = CTX_PROPERTY_NAME_LIST; |
94e7f906 JJ |
20033 | break; |
20034 | case 'i': /* implementation */ | |
20035 | selectors = omp_implementation_selectors; | |
20036 | allow_user = true; | |
20037 | property_limit = 3; | |
b2417b59 | 20038 | property_kind = CTX_PROPERTY_NAME_LIST; |
94e7f906 JJ |
20039 | break; |
20040 | case 'u': /* user */ | |
20041 | selectors = omp_user_selectors; | |
20042 | property_limit = 1; | |
20043 | property_kind = CTX_PROPERTY_EXPR; | |
20044 | break; | |
20045 | default: | |
20046 | gcc_unreachable (); | |
20047 | } | |
20048 | for (int i = 0; ; i++) | |
20049 | { | |
20050 | if (selectors[i] == NULL) | |
20051 | { | |
20052 | if (allow_user) | |
20053 | { | |
20054 | property_kind = CTX_PROPERTY_USER; | |
20055 | break; | |
20056 | } | |
20057 | else | |
20058 | { | |
20059 | error_at (c_parser_peek_token (parser)->location, | |
20060 | "selector %qs not allowed for context selector " | |
20061 | "set %qs", IDENTIFIER_POINTER (selector), | |
20062 | IDENTIFIER_POINTER (set)); | |
20063 | c_parser_consume_token (parser); | |
20064 | return error_mark_node; | |
20065 | } | |
20066 | } | |
20067 | if (i == property_limit) | |
20068 | property_kind = CTX_PROPERTY_NONE; | |
20069 | if (strcmp (selectors[i], IDENTIFIER_POINTER (selector)) == 0) | |
20070 | break; | |
20071 | } | |
b2417b59 JJ |
20072 | if (property_kind == CTX_PROPERTY_NAME_LIST |
20073 | && IDENTIFIER_POINTER (set)[0] == 'i' | |
20074 | && strcmp (IDENTIFIER_POINTER (selector), | |
20075 | "atomic_default_mem_order") == 0) | |
20076 | property_kind = CTX_PROPERTY_ID; | |
94e7f906 JJ |
20077 | |
20078 | c_parser_consume_token (parser); | |
20079 | ||
20080 | if (c_parser_next_token_is (parser, CPP_OPEN_PAREN)) | |
20081 | { | |
20082 | if (property_kind == CTX_PROPERTY_NONE) | |
20083 | { | |
20084 | error_at (c_parser_peek_token (parser)->location, | |
20085 | "selector %qs does not accept any properties", | |
20086 | IDENTIFIER_POINTER (selector)); | |
20087 | return error_mark_node; | |
20088 | } | |
20089 | ||
20090 | matching_parens parens; | |
20091 | parens.require_open (parser); | |
20092 | ||
20093 | c_token *token = c_parser_peek_token (parser); | |
20094 | if (allow_score | |
20095 | && c_parser_next_token_is (parser, CPP_NAME) | |
20096 | && strcmp (IDENTIFIER_POINTER (token->value), "score") == 0 | |
20097 | && c_parser_peek_2nd_token (parser)->type == CPP_OPEN_PAREN) | |
20098 | { | |
20099 | c_parser_consume_token (parser); | |
20100 | ||
20101 | matching_parens parens2; | |
20102 | parens2.require_open (parser); | |
20103 | tree score = c_parser_expr_no_commas (parser, NULL).value; | |
20104 | parens2.skip_until_found_close (parser); | |
20105 | c_parser_require (parser, CPP_COLON, "expected %<:%>"); | |
20106 | if (score != error_mark_node) | |
20107 | { | |
20108 | mark_exp_read (score); | |
20109 | score = c_fully_fold (score, false, NULL); | |
20110 | if (!INTEGRAL_TYPE_P (TREE_TYPE (score)) | |
bedb7f04 | 20111 | || TREE_CODE (score) != INTEGER_CST) |
94e7f906 JJ |
20112 | error_at (token->location, "score argument must be " |
20113 | "constant integer expression"); | |
bedb7f04 JJ |
20114 | else if (tree_int_cst_sgn (score) < 0) |
20115 | error_at (token->location, "score argument must be " | |
20116 | "non-negative"); | |
94e7f906 JJ |
20117 | else |
20118 | properties = tree_cons (get_identifier (" score"), | |
20119 | score, properties); | |
20120 | } | |
20121 | token = c_parser_peek_token (parser); | |
20122 | } | |
20123 | ||
20124 | switch (property_kind) | |
20125 | { | |
20126 | tree t; | |
20127 | case CTX_PROPERTY_USER: | |
20128 | do | |
20129 | { | |
20130 | t = c_parser_expr_no_commas (parser, NULL).value; | |
20131 | if (TREE_CODE (t) == STRING_CST) | |
20132 | properties = tree_cons (NULL_TREE, t, properties); | |
20133 | else if (t != error_mark_node) | |
20134 | { | |
20135 | mark_exp_read (t); | |
20136 | t = c_fully_fold (t, false, NULL); | |
20137 | if (!INTEGRAL_TYPE_P (TREE_TYPE (t)) | |
20138 | || !tree_fits_shwi_p (t)) | |
20139 | error_at (token->location, "property must be " | |
20140 | "constant integer expression or string " | |
20141 | "literal"); | |
20142 | else | |
20143 | properties = tree_cons (NULL_TREE, t, properties); | |
20144 | } | |
20de9568 JJ |
20145 | else |
20146 | return error_mark_node; | |
94e7f906 JJ |
20147 | |
20148 | if (c_parser_next_token_is (parser, CPP_COMMA)) | |
20149 | c_parser_consume_token (parser); | |
20150 | else | |
20151 | break; | |
20152 | } | |
20153 | while (1); | |
20154 | break; | |
b2417b59 JJ |
20155 | case CTX_PROPERTY_ID: |
20156 | if (c_parser_next_token_is (parser, CPP_KEYWORD) | |
20157 | || c_parser_next_token_is (parser, CPP_NAME)) | |
20158 | { | |
20159 | tree prop = c_parser_peek_token (parser)->value; | |
20160 | c_parser_consume_token (parser); | |
20161 | properties = tree_cons (prop, NULL_TREE, properties); | |
20162 | } | |
20163 | else | |
20164 | { | |
20165 | c_parser_error (parser, "expected identifier"); | |
20166 | return error_mark_node; | |
20167 | } | |
20168 | break; | |
20169 | case CTX_PROPERTY_NAME_LIST: | |
94e7f906 JJ |
20170 | do |
20171 | { | |
b2417b59 | 20172 | tree prop = NULL_TREE, value = NULL_TREE; |
94e7f906 JJ |
20173 | if (c_parser_next_token_is (parser, CPP_KEYWORD) |
20174 | || c_parser_next_token_is (parser, CPP_NAME)) | |
b2417b59 JJ |
20175 | { |
20176 | prop = c_parser_peek_token (parser)->value; | |
20177 | c_parser_consume_token (parser); | |
20178 | } | |
20179 | else if (c_parser_next_token_is (parser, CPP_STRING)) | |
20180 | value = c_parser_string_literal (parser, false, | |
20181 | false).value; | |
94e7f906 JJ |
20182 | else |
20183 | { | |
b2417b59 JJ |
20184 | c_parser_error (parser, "expected identifier or " |
20185 | "string literal"); | |
94e7f906 JJ |
20186 | return error_mark_node; |
20187 | } | |
94e7f906 | 20188 | |
b2417b59 | 20189 | properties = tree_cons (prop, value, properties); |
94e7f906 JJ |
20190 | |
20191 | if (c_parser_next_token_is (parser, CPP_COMMA)) | |
20192 | c_parser_consume_token (parser); | |
20193 | else | |
20194 | break; | |
20195 | } | |
20196 | while (1); | |
20197 | break; | |
20198 | case CTX_PROPERTY_EXPR: | |
20199 | t = c_parser_expr_no_commas (parser, NULL).value; | |
20200 | if (t != error_mark_node) | |
20201 | { | |
20202 | mark_exp_read (t); | |
20203 | t = c_fully_fold (t, false, NULL); | |
20204 | if (!INTEGRAL_TYPE_P (TREE_TYPE (t)) | |
20205 | || !tree_fits_shwi_p (t)) | |
20206 | error_at (token->location, "property must be " | |
20207 | "constant integer expression"); | |
20208 | else | |
20209 | properties = tree_cons (NULL_TREE, t, properties); | |
20210 | } | |
20de9568 JJ |
20211 | else |
20212 | return error_mark_node; | |
94e7f906 JJ |
20213 | break; |
20214 | case CTX_PROPERTY_SIMD: | |
20215 | if (parms == NULL_TREE) | |
20216 | { | |
20217 | error_at (token->location, "properties for %<simd%> " | |
20218 | "selector may not be specified in " | |
20219 | "%<metadirective%>"); | |
20220 | return error_mark_node; | |
20221 | } | |
20222 | tree c; | |
20223 | c = c_parser_omp_all_clauses (parser, | |
20224 | OMP_DECLARE_SIMD_CLAUSE_MASK, | |
b9424661 | 20225 | "simd", true, 2); |
94e7f906 JJ |
20226 | c = c_omp_declare_simd_clauses_to_numbers (parms |
20227 | == error_mark_node | |
20228 | ? NULL_TREE : parms, | |
20229 | c); | |
20de9568 | 20230 | properties = c; |
94e7f906 JJ |
20231 | break; |
20232 | default: | |
20233 | gcc_unreachable (); | |
20234 | } | |
20235 | ||
20236 | parens.skip_until_found_close (parser); | |
20237 | properties = nreverse (properties); | |
20238 | } | |
b2417b59 JJ |
20239 | else if (property_kind == CTX_PROPERTY_NAME_LIST |
20240 | || property_kind == CTX_PROPERTY_ID | |
94e7f906 JJ |
20241 | || property_kind == CTX_PROPERTY_EXPR) |
20242 | { | |
20243 | c_parser_require (parser, CPP_OPEN_PAREN, "expected %<(%>"); | |
20244 | return error_mark_node; | |
20245 | } | |
20246 | ||
20247 | ret = tree_cons (selector, properties, ret); | |
20248 | ||
20249 | if (c_parser_next_token_is (parser, CPP_COMMA)) | |
20250 | c_parser_consume_token (parser); | |
20251 | else | |
20252 | break; | |
20253 | } | |
20254 | while (1); | |
20255 | ||
20256 | return nreverse (ret); | |
20257 | } | |
20258 | ||
20259 | /* OpenMP 5.0: | |
20260 | ||
20261 | trait-set-selector[,trait-set-selector[,...]] | |
20262 | ||
20263 | trait-set-selector: | |
20264 | trait-set-selector-name = { trait-selector[, trait-selector[, ...]] } | |
20265 | ||
20266 | trait-set-selector-name: | |
20267 | constructor | |
20268 | device | |
20269 | implementation | |
20270 | user */ | |
20271 | ||
20272 | static tree | |
20273 | c_parser_omp_context_selector_specification (c_parser *parser, tree parms) | |
20274 | { | |
20275 | tree ret = NULL_TREE; | |
20276 | do | |
20277 | { | |
20278 | const char *setp = ""; | |
20279 | if (c_parser_next_token_is (parser, CPP_NAME)) | |
20280 | setp = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
20281 | switch (setp[0]) | |
20282 | { | |
20283 | case 'c': | |
20284 | if (strcmp (setp, "construct") == 0) | |
20285 | setp = NULL; | |
20286 | break; | |
20287 | case 'd': | |
20288 | if (strcmp (setp, "device") == 0) | |
20289 | setp = NULL; | |
20290 | break; | |
20291 | case 'i': | |
20292 | if (strcmp (setp, "implementation") == 0) | |
20293 | setp = NULL; | |
20294 | break; | |
20295 | case 'u': | |
20296 | if (strcmp (setp, "user") == 0) | |
20297 | setp = NULL; | |
20298 | break; | |
20299 | default: | |
20300 | break; | |
20301 | } | |
20302 | if (setp) | |
20303 | { | |
20304 | c_parser_error (parser, "expected %<construct%>, %<device%>, " | |
20305 | "%<implementation%> or %<user%>"); | |
20306 | return error_mark_node; | |
20307 | } | |
20308 | ||
20309 | tree set = c_parser_peek_token (parser)->value; | |
20310 | c_parser_consume_token (parser); | |
20311 | ||
20312 | if (!c_parser_require (parser, CPP_EQ, "expected %<=%>")) | |
20313 | return error_mark_node; | |
20314 | ||
20315 | matching_braces braces; | |
20316 | if (!braces.require_open (parser)) | |
20317 | return error_mark_node; | |
20318 | ||
20319 | tree selectors = c_parser_omp_context_selector (parser, set, parms); | |
20320 | if (selectors == error_mark_node) | |
20321 | ret = error_mark_node; | |
20322 | else if (ret != error_mark_node) | |
20323 | ret = tree_cons (set, selectors, ret); | |
20324 | ||
20325 | braces.skip_until_found_close (parser); | |
20326 | ||
20327 | if (c_parser_next_token_is (parser, CPP_COMMA)) | |
20328 | c_parser_consume_token (parser); | |
20329 | else | |
20330 | break; | |
20331 | } | |
20332 | while (1); | |
20333 | ||
20334 | if (ret == error_mark_node) | |
20335 | return ret; | |
20336 | return nreverse (ret); | |
20337 | } | |
20338 | ||
20339 | /* Finalize #pragma omp declare variant after FNDECL has been parsed, and put | |
20de9568 | 20340 | that into "omp declare variant base" attribute. */ |
94e7f906 JJ |
20341 | |
20342 | static void | |
20343 | c_finish_omp_declare_variant (c_parser *parser, tree fndecl, tree parms) | |
20344 | { | |
20345 | matching_parens parens; | |
20346 | if (!parens.require_open (parser)) | |
20347 | { | |
20348 | fail: | |
20349 | c_parser_skip_to_pragma_eol (parser, false); | |
20350 | return; | |
20351 | } | |
20352 | ||
20353 | if (c_parser_next_token_is_not (parser, CPP_NAME) | |
20354 | || c_parser_peek_token (parser)->id_kind != C_ID_ID) | |
20355 | { | |
20356 | c_parser_error (parser, "expected identifier"); | |
20357 | goto fail; | |
20358 | } | |
20359 | ||
20360 | c_token *token = c_parser_peek_token (parser); | |
20361 | tree variant = lookup_name (token->value); | |
20362 | ||
20363 | if (variant == NULL_TREE) | |
20364 | { | |
20365 | undeclared_variable (token->location, token->value); | |
20366 | variant = error_mark_node; | |
20367 | } | |
20368 | ||
20369 | c_parser_consume_token (parser); | |
20370 | ||
20371 | parens.require_close (parser); | |
20372 | ||
20373 | const char *clause = ""; | |
20374 | location_t match_loc = c_parser_peek_token (parser)->location; | |
20375 | if (c_parser_next_token_is (parser, CPP_NAME)) | |
20376 | clause = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
20377 | if (strcmp (clause, "match")) | |
20378 | { | |
20379 | c_parser_error (parser, "expected %<match%>"); | |
20380 | goto fail; | |
20381 | } | |
20382 | ||
20383 | c_parser_consume_token (parser); | |
20384 | ||
20385 | if (!parens.require_open (parser)) | |
20386 | goto fail; | |
20387 | ||
20388 | if (parms == NULL_TREE) | |
20389 | parms = error_mark_node; | |
20390 | ||
20391 | tree ctx = c_parser_omp_context_selector_specification (parser, parms); | |
20392 | if (ctx == error_mark_node) | |
20393 | goto fail; | |
20394 | ctx = c_omp_check_context_selector (match_loc, ctx); | |
20395 | if (ctx != error_mark_node && variant != error_mark_node) | |
20396 | { | |
20397 | if (TREE_CODE (variant) != FUNCTION_DECL) | |
20398 | { | |
20399 | error_at (token->location, "variant %qD is not a function", variant); | |
20400 | variant = error_mark_node; | |
20401 | } | |
d0c464d2 | 20402 | else if (omp_get_context_selector (ctx, "construct", "simd") == NULL_TREE |
94e7f906 JJ |
20403 | && !comptypes (TREE_TYPE (fndecl), TREE_TYPE (variant))) |
20404 | { | |
20405 | error_at (token->location, "variant %qD and base %qD have " | |
20406 | "incompatible types", variant, fndecl); | |
20407 | variant = error_mark_node; | |
20408 | } | |
20409 | else if (fndecl_built_in_p (variant) | |
20410 | && (strncmp (IDENTIFIER_POINTER (DECL_NAME (variant)), | |
20411 | "__builtin_", strlen ("__builtin_")) == 0 | |
20412 | || strncmp (IDENTIFIER_POINTER (DECL_NAME (variant)), | |
20413 | "__sync_", strlen ("__sync_")) == 0 | |
20414 | || strncmp (IDENTIFIER_POINTER (DECL_NAME (variant)), | |
20415 | "__atomic_", strlen ("__atomic_")) == 0)) | |
20416 | { | |
20417 | error_at (token->location, "variant %qD is a built-in", variant); | |
20418 | variant = error_mark_node; | |
20419 | } | |
20420 | if (variant != error_mark_node) | |
20421 | { | |
20422 | C_DECL_USED (variant) = 1; | |
d0c464d2 | 20423 | tree construct = omp_get_context_selector (ctx, "construct", NULL); |
20de9568 | 20424 | c_omp_mark_declare_variant (match_loc, variant, construct); |
135df52c | 20425 | if (omp_context_selector_matches (ctx)) |
20de9568 JJ |
20426 | { |
20427 | tree attr | |
20428 | = tree_cons (get_identifier ("omp declare variant base"), | |
20429 | build_tree_list (variant, ctx), | |
20430 | DECL_ATTRIBUTES (fndecl)); | |
20431 | DECL_ATTRIBUTES (fndecl) = attr; | |
20432 | } | |
94e7f906 JJ |
20433 | } |
20434 | } | |
20435 | ||
20436 | parens.require_close (parser); | |
20437 | c_parser_skip_to_pragma_eol (parser); | |
20438 | } | |
20439 | ||
20440 | /* Finalize #pragma omp declare simd or #pragma omp declare variant | |
20441 | clauses after FNDECL has been parsed, and put that into "omp declare simd" | |
20de9568 | 20442 | or "omp declare variant base" attribute. */ |
c2255bc4 | 20443 | |
acf0174b JJ |
20444 | static void |
20445 | c_finish_omp_declare_simd (c_parser *parser, tree fndecl, tree parms, | |
20446 | vec<c_token> clauses) | |
20447 | { | |
94e7f906 JJ |
20448 | /* Normally first token is CPP_NAME "simd" or "variant". CPP_EOF there |
20449 | indicates error has been reported and CPP_PRAGMA that | |
20450 | c_finish_omp_declare_simd has already processed the tokens. */ | |
41958c28 | 20451 | if (clauses.exists () && clauses[0].type == CPP_EOF) |
acf0174b | 20452 | return; |
94e7f906 JJ |
20453 | const char *kind = "simd"; |
20454 | if (clauses.exists () | |
20455 | && (clauses[0].type == CPP_NAME || clauses[0].type == CPP_PRAGMA)) | |
20456 | kind = IDENTIFIER_POINTER (clauses[0].value); | |
20457 | gcc_assert (strcmp (kind, "simd") == 0 || strcmp (kind, "variant") == 0); | |
acf0174b JJ |
20458 | if (fndecl == NULL_TREE || TREE_CODE (fndecl) != FUNCTION_DECL) |
20459 | { | |
94e7f906 JJ |
20460 | error ("%<#pragma omp declare %s%> not immediately followed by " |
20461 | "a function declaration or definition", kind); | |
acf0174b JJ |
20462 | clauses[0].type = CPP_EOF; |
20463 | return; | |
20464 | } | |
41958c28 | 20465 | if (clauses.exists () && clauses[0].type != CPP_NAME) |
acf0174b JJ |
20466 | { |
20467 | error_at (DECL_SOURCE_LOCATION (fndecl), | |
94e7f906 JJ |
20468 | "%<#pragma omp declare %s%> not immediately followed by " |
20469 | "a single function declaration or definition", kind); | |
acf0174b JJ |
20470 | clauses[0].type = CPP_EOF; |
20471 | return; | |
20472 | } | |
953ff289 | 20473 | |
acf0174b JJ |
20474 | if (parms == NULL_TREE) |
20475 | parms = DECL_ARGUMENTS (fndecl); | |
953ff289 | 20476 | |
acf0174b JJ |
20477 | unsigned int tokens_avail = parser->tokens_avail; |
20478 | gcc_assert (parser->tokens == &parser->tokens_buf[0]); | |
fff77217 | 20479 | |
5e9d6aa4 JK |
20480 | parser->tokens = clauses.address (); |
20481 | parser->tokens_avail = clauses.length (); | |
41958c28 | 20482 | |
acf0174b JJ |
20483 | /* c_parser_omp_declare_simd pushed 2 extra CPP_EOF tokens at the end. */ |
20484 | while (parser->tokens_avail > 3) | |
20485 | { | |
20486 | c_token *token = c_parser_peek_token (parser); | |
5e9d6aa4 | 20487 | gcc_assert (token->type == CPP_NAME |
94e7f906 | 20488 | && strcmp (IDENTIFIER_POINTER (token->value), kind) == 0); |
acf0174b JJ |
20489 | c_parser_consume_token (parser); |
20490 | parser->in_pragma = true; | |
953ff289 | 20491 | |
94e7f906 JJ |
20492 | if (strcmp (kind, "simd") == 0) |
20493 | { | |
20494 | tree c; | |
20495 | c = c_parser_omp_all_clauses (parser, OMP_DECLARE_SIMD_CLAUSE_MASK, | |
20496 | "#pragma omp declare simd"); | |
20497 | c = c_omp_declare_simd_clauses_to_numbers (parms, c); | |
20498 | if (c != NULL_TREE) | |
20499 | c = tree_cons (NULL_TREE, c, NULL_TREE); | |
20500 | c = build_tree_list (get_identifier ("omp declare simd"), c); | |
20501 | TREE_CHAIN (c) = DECL_ATTRIBUTES (fndecl); | |
20502 | DECL_ATTRIBUTES (fndecl) = c; | |
20503 | } | |
20504 | else | |
20505 | { | |
20506 | gcc_assert (strcmp (kind, "variant") == 0); | |
20507 | c_finish_omp_declare_variant (parser, fndecl, parms); | |
20508 | } | |
acf0174b | 20509 | } |
953ff289 | 20510 | |
acf0174b JJ |
20511 | parser->tokens = &parser->tokens_buf[0]; |
20512 | parser->tokens_avail = tokens_avail; | |
41958c28 BI |
20513 | if (clauses.exists ()) |
20514 | clauses[0].type = CPP_PRAGMA; | |
953ff289 DN |
20515 | } |
20516 | ||
953ff289 | 20517 | |
acf0174b JJ |
20518 | /* OpenMP 4.0: |
20519 | # pragma omp declare target new-line | |
20520 | declarations and definitions | |
d9a6bd32 JJ |
20521 | # pragma omp end declare target new-line |
20522 | ||
20523 | OpenMP 4.5: | |
20524 | # pragma omp declare target ( extended-list ) new-line | |
20525 | ||
20526 | # pragma omp declare target declare-target-clauses[seq] new-line */ | |
20527 | ||
20528 | #define OMP_DECLARE_TARGET_CLAUSE_MASK \ | |
20529 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_TO) \ | |
77eb117f JJ |
20530 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_LINK) \ |
20531 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_DEVICE_TYPE)) | |
953ff289 | 20532 | |
acf0174b JJ |
20533 | static void |
20534 | c_parser_omp_declare_target (c_parser *parser) | |
953ff289 | 20535 | { |
d9a6bd32 | 20536 | tree clauses = NULL_TREE; |
77eb117f JJ |
20537 | int device_type = 0; |
20538 | bool only_device_type = true; | |
d9a6bd32 JJ |
20539 | if (c_parser_next_token_is (parser, CPP_NAME)) |
20540 | clauses = c_parser_omp_all_clauses (parser, OMP_DECLARE_TARGET_CLAUSE_MASK, | |
20541 | "#pragma omp declare target"); | |
20542 | else if (c_parser_next_token_is (parser, CPP_OPEN_PAREN)) | |
20543 | { | |
20544 | clauses = c_parser_omp_var_list_parens (parser, OMP_CLAUSE_TO_DECLARE, | |
20545 | clauses); | |
77886428 | 20546 | clauses = c_finish_omp_clauses (clauses, C_ORT_OMP); |
d9a6bd32 JJ |
20547 | c_parser_skip_to_pragma_eol (parser); |
20548 | } | |
20549 | else | |
20550 | { | |
20551 | c_parser_skip_to_pragma_eol (parser); | |
20552 | current_omp_declare_target_attribute++; | |
20553 | return; | |
20554 | } | |
77eb117f JJ |
20555 | for (tree c = clauses; c; c = OMP_CLAUSE_CHAIN (c)) |
20556 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_DEVICE_TYPE) | |
20557 | device_type |= OMP_CLAUSE_DEVICE_TYPE_KIND (c); | |
d9a6bd32 JJ |
20558 | for (tree c = clauses; c; c = OMP_CLAUSE_CHAIN (c)) |
20559 | { | |
77eb117f JJ |
20560 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_DEVICE_TYPE) |
20561 | continue; | |
d9a6bd32 JJ |
20562 | tree t = OMP_CLAUSE_DECL (c), id; |
20563 | tree at1 = lookup_attribute ("omp declare target", DECL_ATTRIBUTES (t)); | |
20564 | tree at2 = lookup_attribute ("omp declare target link", | |
20565 | DECL_ATTRIBUTES (t)); | |
77eb117f | 20566 | only_device_type = false; |
d9a6bd32 JJ |
20567 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_LINK) |
20568 | { | |
20569 | id = get_identifier ("omp declare target link"); | |
20570 | std::swap (at1, at2); | |
20571 | } | |
20572 | else | |
20573 | id = get_identifier ("omp declare target"); | |
20574 | if (at2) | |
20575 | { | |
20576 | error_at (OMP_CLAUSE_LOCATION (c), | |
20577 | "%qD specified both in declare target %<link%> and %<to%>" | |
20578 | " clauses", t); | |
20579 | continue; | |
20580 | } | |
20581 | if (!at1) | |
e01d41e5 | 20582 | { |
e01d41e5 | 20583 | DECL_ATTRIBUTES (t) = tree_cons (id, NULL_TREE, DECL_ATTRIBUTES (t)); |
56f71478 JJ |
20584 | if (TREE_CODE (t) != FUNCTION_DECL && !is_global_var (t)) |
20585 | continue; | |
20586 | ||
20587 | symtab_node *node = symtab_node::get (t); | |
e01d41e5 JJ |
20588 | if (node != NULL) |
20589 | { | |
20590 | node->offloadable = 1; | |
1d899da2 | 20591 | if (ENABLE_OFFLOADING) |
e01d41e5 | 20592 | { |
1d899da2 TS |
20593 | g->have_offload = true; |
20594 | if (is_a <varpool_node *> (node)) | |
e6d6ec9e | 20595 | vec_safe_push (offload_vars, t); |
e01d41e5 | 20596 | } |
e01d41e5 JJ |
20597 | } |
20598 | } | |
77eb117f JJ |
20599 | if (TREE_CODE (t) != FUNCTION_DECL) |
20600 | continue; | |
20601 | if ((device_type & OMP_CLAUSE_DEVICE_TYPE_HOST) != 0) | |
20602 | { | |
20603 | tree at3 = lookup_attribute ("omp declare target host", | |
20604 | DECL_ATTRIBUTES (t)); | |
20605 | if (at3 == NULL_TREE) | |
20606 | { | |
20607 | id = get_identifier ("omp declare target host"); | |
20608 | DECL_ATTRIBUTES (t) | |
20609 | = tree_cons (id, NULL_TREE, DECL_ATTRIBUTES (t)); | |
20610 | } | |
20611 | } | |
20612 | if ((device_type & OMP_CLAUSE_DEVICE_TYPE_NOHOST) != 0) | |
20613 | { | |
20614 | tree at3 = lookup_attribute ("omp declare target nohost", | |
20615 | DECL_ATTRIBUTES (t)); | |
20616 | if (at3 == NULL_TREE) | |
20617 | { | |
20618 | id = get_identifier ("omp declare target nohost"); | |
20619 | DECL_ATTRIBUTES (t) | |
20620 | = tree_cons (id, NULL_TREE, DECL_ATTRIBUTES (t)); | |
20621 | } | |
20622 | } | |
d9a6bd32 | 20623 | } |
77eb117f JJ |
20624 | if (device_type && only_device_type) |
20625 | warning_at (OMP_CLAUSE_LOCATION (clauses), 0, | |
20626 | "directive with only %<device_type%> clauses ignored"); | |
acf0174b | 20627 | } |
953ff289 | 20628 | |
acf0174b JJ |
20629 | static void |
20630 | c_parser_omp_end_declare_target (c_parser *parser) | |
20631 | { | |
20632 | location_t loc = c_parser_peek_token (parser)->location; | |
20633 | c_parser_consume_pragma (parser); | |
20634 | if (c_parser_next_token_is (parser, CPP_NAME) | |
20635 | && strcmp (IDENTIFIER_POINTER (c_parser_peek_token (parser)->value), | |
20636 | "declare") == 0) | |
953ff289 DN |
20637 | { |
20638 | c_parser_consume_token (parser); | |
acf0174b JJ |
20639 | if (c_parser_next_token_is (parser, CPP_NAME) |
20640 | && strcmp (IDENTIFIER_POINTER (c_parser_peek_token (parser)->value), | |
20641 | "target") == 0) | |
20642 | c_parser_consume_token (parser); | |
20643 | else | |
953ff289 | 20644 | { |
acf0174b JJ |
20645 | c_parser_error (parser, "expected %<target%>"); |
20646 | c_parser_skip_to_pragma_eol (parser); | |
20647 | return; | |
953ff289 DN |
20648 | } |
20649 | } | |
acf0174b JJ |
20650 | else |
20651 | { | |
20652 | c_parser_error (parser, "expected %<declare%>"); | |
20653 | c_parser_skip_to_pragma_eol (parser); | |
20654 | return; | |
20655 | } | |
20656 | c_parser_skip_to_pragma_eol (parser); | |
20657 | if (!current_omp_declare_target_attribute) | |
20658 | error_at (loc, "%<#pragma omp end declare target%> without corresponding " | |
20659 | "%<#pragma omp declare target%>"); | |
20660 | else | |
20661 | current_omp_declare_target_attribute--; | |
20662 | } | |
953ff289 | 20663 | |
953ff289 | 20664 | |
acf0174b JJ |
20665 | /* OpenMP 4.0 |
20666 | #pragma omp declare reduction (reduction-id : typename-list : expression) \ | |
20667 | initializer-clause[opt] new-line | |
20668 | ||
20669 | initializer-clause: | |
20670 | initializer (omp_priv = initializer) | |
20671 | initializer (function-name (argument-list)) */ | |
20672 | ||
20673 | static void | |
20674 | c_parser_omp_declare_reduction (c_parser *parser, enum pragma_context context) | |
20675 | { | |
20676 | unsigned int tokens_avail = 0, i; | |
20677 | vec<tree> types = vNULL; | |
20678 | vec<c_token> clauses = vNULL; | |
20679 | enum tree_code reduc_code = ERROR_MARK; | |
20680 | tree reduc_id = NULL_TREE; | |
20681 | tree type; | |
20682 | location_t rloc = c_parser_peek_token (parser)->location; | |
20683 | ||
20684 | if (context == pragma_struct || context == pragma_param) | |
953ff289 | 20685 | { |
acf0174b JJ |
20686 | error ("%<#pragma omp declare reduction%> not at file or block scope"); |
20687 | goto fail; | |
20688 | } | |
953ff289 | 20689 | |
acf0174b JJ |
20690 | if (!c_parser_require (parser, CPP_OPEN_PAREN, "expected %<(%>")) |
20691 | goto fail; | |
953ff289 | 20692 | |
acf0174b JJ |
20693 | switch (c_parser_peek_token (parser)->type) |
20694 | { | |
20695 | case CPP_PLUS: | |
20696 | reduc_code = PLUS_EXPR; | |
20697 | break; | |
20698 | case CPP_MULT: | |
20699 | reduc_code = MULT_EXPR; | |
20700 | break; | |
20701 | case CPP_MINUS: | |
20702 | reduc_code = MINUS_EXPR; | |
20703 | break; | |
20704 | case CPP_AND: | |
20705 | reduc_code = BIT_AND_EXPR; | |
20706 | break; | |
20707 | case CPP_XOR: | |
20708 | reduc_code = BIT_XOR_EXPR; | |
20709 | break; | |
20710 | case CPP_OR: | |
20711 | reduc_code = BIT_IOR_EXPR; | |
20712 | break; | |
20713 | case CPP_AND_AND: | |
20714 | reduc_code = TRUTH_ANDIF_EXPR; | |
20715 | break; | |
20716 | case CPP_OR_OR: | |
20717 | reduc_code = TRUTH_ORIF_EXPR; | |
20718 | break; | |
20719 | case CPP_NAME: | |
20720 | const char *p; | |
20721 | p = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
20722 | if (strcmp (p, "min") == 0) | |
20723 | { | |
20724 | reduc_code = MIN_EXPR; | |
20725 | break; | |
20726 | } | |
20727 | if (strcmp (p, "max") == 0) | |
20728 | { | |
20729 | reduc_code = MAX_EXPR; | |
20730 | break; | |
20731 | } | |
20732 | reduc_id = c_parser_peek_token (parser)->value; | |
953ff289 | 20733 | break; |
953ff289 | 20734 | default: |
acf0174b JJ |
20735 | c_parser_error (parser, |
20736 | "expected %<+%>, %<*%>, %<-%>, %<&%>, " | |
79c9b7a8 | 20737 | "%<^%>, %<|%>, %<&&%>, %<||%> or identifier"); |
acf0174b | 20738 | goto fail; |
953ff289 DN |
20739 | } |
20740 | ||
acf0174b JJ |
20741 | tree orig_reduc_id, reduc_decl; |
20742 | orig_reduc_id = reduc_id; | |
20743 | reduc_id = c_omp_reduction_id (reduc_code, reduc_id); | |
20744 | reduc_decl = c_omp_reduction_decl (reduc_id); | |
20745 | c_parser_consume_token (parser); | |
953ff289 | 20746 | |
acf0174b JJ |
20747 | if (!c_parser_require (parser, CPP_COLON, "expected %<:%>")) |
20748 | goto fail; | |
c2255bc4 | 20749 | |
acf0174b JJ |
20750 | while (true) |
20751 | { | |
20752 | location_t loc = c_parser_peek_token (parser)->location; | |
20753 | struct c_type_name *ctype = c_parser_type_name (parser); | |
20754 | if (ctype != NULL) | |
20755 | { | |
20756 | type = groktypename (ctype, NULL, NULL); | |
20757 | if (type == error_mark_node) | |
20758 | ; | |
20759 | else if ((INTEGRAL_TYPE_P (type) | |
20760 | || TREE_CODE (type) == REAL_TYPE | |
20761 | || TREE_CODE (type) == COMPLEX_TYPE) | |
20762 | && orig_reduc_id == NULL_TREE) | |
20763 | error_at (loc, "predeclared arithmetic type in " | |
20764 | "%<#pragma omp declare reduction%>"); | |
20765 | else if (TREE_CODE (type) == FUNCTION_TYPE | |
20766 | || TREE_CODE (type) == ARRAY_TYPE) | |
20767 | error_at (loc, "function or array type in " | |
20768 | "%<#pragma omp declare reduction%>"); | |
9dc5773f JJ |
20769 | else if (TYPE_ATOMIC (type)) |
20770 | error_at (loc, "%<_Atomic%> qualified type in " | |
20771 | "%<#pragma omp declare reduction%>"); | |
acf0174b JJ |
20772 | else if (TYPE_QUALS_NO_ADDR_SPACE (type)) |
20773 | error_at (loc, "const, volatile or restrict qualified type in " | |
20774 | "%<#pragma omp declare reduction%>"); | |
20775 | else | |
20776 | { | |
20777 | tree t; | |
20778 | for (t = DECL_INITIAL (reduc_decl); t; t = TREE_CHAIN (t)) | |
20779 | if (comptypes (TREE_PURPOSE (t), type)) | |
20780 | { | |
20781 | error_at (loc, "redeclaration of %qs " | |
20782 | "%<#pragma omp declare reduction%> for " | |
20783 | "type %qT", | |
20784 | IDENTIFIER_POINTER (reduc_id) | |
20785 | + sizeof ("omp declare reduction ") - 1, | |
20786 | type); | |
20787 | location_t ploc | |
20788 | = DECL_SOURCE_LOCATION (TREE_VEC_ELT (TREE_VALUE (t), | |
20789 | 0)); | |
20790 | error_at (ploc, "previous %<#pragma omp declare " | |
20791 | "reduction%>"); | |
20792 | break; | |
20793 | } | |
20794 | if (t == NULL_TREE) | |
20795 | types.safe_push (type); | |
20796 | } | |
20797 | if (c_parser_next_token_is (parser, CPP_COMMA)) | |
20798 | c_parser_consume_token (parser); | |
20799 | else | |
20800 | break; | |
20801 | } | |
20802 | else | |
20803 | break; | |
20804 | } | |
953ff289 | 20805 | |
acf0174b JJ |
20806 | if (!c_parser_require (parser, CPP_COLON, "expected %<:%>") |
20807 | || types.is_empty ()) | |
20808 | { | |
20809 | fail: | |
20810 | clauses.release (); | |
20811 | types.release (); | |
20812 | while (true) | |
20813 | { | |
20814 | c_token *token = c_parser_peek_token (parser); | |
20815 | if (token->type == CPP_EOF || token->type == CPP_PRAGMA_EOL) | |
20816 | break; | |
20817 | c_parser_consume_token (parser); | |
20818 | } | |
20819 | c_parser_skip_to_pragma_eol (parser); | |
20820 | return; | |
20821 | } | |
953ff289 | 20822 | |
acf0174b JJ |
20823 | if (types.length () > 1) |
20824 | { | |
20825 | while (c_parser_next_token_is_not (parser, CPP_PRAGMA_EOL)) | |
20826 | { | |
20827 | c_token *token = c_parser_peek_token (parser); | |
20828 | if (token->type == CPP_EOF) | |
20829 | goto fail; | |
20830 | clauses.safe_push (*token); | |
20831 | c_parser_consume_token (parser); | |
20832 | } | |
20833 | clauses.safe_push (*c_parser_peek_token (parser)); | |
20834 | c_parser_skip_to_pragma_eol (parser); | |
953ff289 | 20835 | |
acf0174b JJ |
20836 | /* Make sure nothing tries to read past the end of the tokens. */ |
20837 | c_token eof_token; | |
20838 | memset (&eof_token, 0, sizeof (eof_token)); | |
20839 | eof_token.type = CPP_EOF; | |
20840 | clauses.safe_push (eof_token); | |
20841 | clauses.safe_push (eof_token); | |
20842 | } | |
953ff289 | 20843 | |
acf0174b JJ |
20844 | int errs = errorcount; |
20845 | FOR_EACH_VEC_ELT (types, i, type) | |
20846 | { | |
20847 | tokens_avail = parser->tokens_avail; | |
20848 | gcc_assert (parser->tokens == &parser->tokens_buf[0]); | |
20849 | if (!clauses.is_empty ()) | |
20850 | { | |
20851 | parser->tokens = clauses.address (); | |
20852 | parser->tokens_avail = clauses.length (); | |
20853 | parser->in_pragma = true; | |
20854 | } | |
953ff289 | 20855 | |
acf0174b JJ |
20856 | bool nested = current_function_decl != NULL_TREE; |
20857 | if (nested) | |
20858 | c_push_function_context (); | |
20859 | tree fndecl = build_decl (BUILTINS_LOCATION, FUNCTION_DECL, | |
20860 | reduc_id, default_function_type); | |
20861 | current_function_decl = fndecl; | |
20862 | allocate_struct_function (fndecl, true); | |
20863 | push_scope (); | |
20864 | tree stmt = push_stmt_list (); | |
20865 | /* Intentionally BUILTINS_LOCATION, so that -Wshadow doesn't | |
20866 | warn about these. */ | |
20867 | tree omp_out = build_decl (BUILTINS_LOCATION, VAR_DECL, | |
20868 | get_identifier ("omp_out"), type); | |
20869 | DECL_ARTIFICIAL (omp_out) = 1; | |
20870 | DECL_CONTEXT (omp_out) = fndecl; | |
20871 | pushdecl (omp_out); | |
20872 | tree omp_in = build_decl (BUILTINS_LOCATION, VAR_DECL, | |
20873 | get_identifier ("omp_in"), type); | |
20874 | DECL_ARTIFICIAL (omp_in) = 1; | |
20875 | DECL_CONTEXT (omp_in) = fndecl; | |
20876 | pushdecl (omp_in); | |
20877 | struct c_expr combiner = c_parser_expression (parser); | |
20878 | struct c_expr initializer; | |
20879 | tree omp_priv = NULL_TREE, omp_orig = NULL_TREE; | |
20880 | bool bad = false; | |
913884f7 | 20881 | initializer.set_error (); |
acf0174b JJ |
20882 | if (!c_parser_require (parser, CPP_CLOSE_PAREN, "expected %<)%>")) |
20883 | bad = true; | |
20884 | else if (c_parser_next_token_is (parser, CPP_NAME) | |
20885 | && strcmp (IDENTIFIER_POINTER | |
20886 | (c_parser_peek_token (parser)->value), | |
20887 | "initializer") == 0) | |
20888 | { | |
20889 | c_parser_consume_token (parser); | |
20890 | pop_scope (); | |
20891 | push_scope (); | |
20892 | omp_priv = build_decl (BUILTINS_LOCATION, VAR_DECL, | |
20893 | get_identifier ("omp_priv"), type); | |
20894 | DECL_ARTIFICIAL (omp_priv) = 1; | |
20895 | DECL_INITIAL (omp_priv) = error_mark_node; | |
20896 | DECL_CONTEXT (omp_priv) = fndecl; | |
20897 | pushdecl (omp_priv); | |
20898 | omp_orig = build_decl (BUILTINS_LOCATION, VAR_DECL, | |
20899 | get_identifier ("omp_orig"), type); | |
20900 | DECL_ARTIFICIAL (omp_orig) = 1; | |
20901 | DECL_CONTEXT (omp_orig) = fndecl; | |
20902 | pushdecl (omp_orig); | |
20903 | if (!c_parser_require (parser, CPP_OPEN_PAREN, "expected %<(%>")) | |
20904 | bad = true; | |
20905 | else if (!c_parser_next_token_is (parser, CPP_NAME)) | |
20906 | { | |
20907 | c_parser_error (parser, "expected %<omp_priv%> or " | |
20908 | "function-name"); | |
20909 | bad = true; | |
20910 | } | |
20911 | else if (strcmp (IDENTIFIER_POINTER | |
20912 | (c_parser_peek_token (parser)->value), | |
20913 | "omp_priv") != 0) | |
20914 | { | |
20915 | if (c_parser_peek_2nd_token (parser)->type != CPP_OPEN_PAREN | |
20916 | || c_parser_peek_token (parser)->id_kind != C_ID_ID) | |
20917 | { | |
20918 | c_parser_error (parser, "expected function-name %<(%>"); | |
20919 | bad = true; | |
20920 | } | |
20921 | else | |
20922 | initializer = c_parser_postfix_expression (parser); | |
20923 | if (initializer.value | |
20924 | && TREE_CODE (initializer.value) == CALL_EXPR) | |
20925 | { | |
20926 | int j; | |
20927 | tree c = initializer.value; | |
20928 | for (j = 0; j < call_expr_nargs (c); j++) | |
d9a6bd32 JJ |
20929 | { |
20930 | tree a = CALL_EXPR_ARG (c, j); | |
20931 | STRIP_NOPS (a); | |
20932 | if (TREE_CODE (a) == ADDR_EXPR | |
20933 | && TREE_OPERAND (a, 0) == omp_priv) | |
20934 | break; | |
20935 | } | |
acf0174b JJ |
20936 | if (j == call_expr_nargs (c)) |
20937 | error ("one of the initializer call arguments should be " | |
20938 | "%<&omp_priv%>"); | |
20939 | } | |
20940 | } | |
20941 | else | |
20942 | { | |
20943 | c_parser_consume_token (parser); | |
20944 | if (!c_parser_require (parser, CPP_EQ, "expected %<=%>")) | |
20945 | bad = true; | |
20946 | else | |
20947 | { | |
20948 | tree st = push_stmt_list (); | |
acf0174b | 20949 | location_t loc = c_parser_peek_token (parser)->location; |
5dd9a9d0 DM |
20950 | rich_location richloc (line_table, loc); |
20951 | start_init (omp_priv, NULL_TREE, 0, &richloc); | |
acf0174b JJ |
20952 | struct c_expr init = c_parser_initializer (parser); |
20953 | finish_init (); | |
20954 | finish_decl (omp_priv, loc, init.value, | |
20955 | init.original_type, NULL_TREE); | |
20956 | pop_stmt_list (st); | |
20957 | } | |
20958 | } | |
20959 | if (!bad | |
20960 | && !c_parser_require (parser, CPP_CLOSE_PAREN, "expected %<)%>")) | |
20961 | bad = true; | |
20962 | } | |
c2255bc4 | 20963 | |
acf0174b JJ |
20964 | if (!bad) |
20965 | { | |
20966 | c_parser_skip_to_pragma_eol (parser); | |
a68ab351 | 20967 | |
acf0174b JJ |
20968 | tree t = tree_cons (type, make_tree_vec (omp_priv ? 6 : 3), |
20969 | DECL_INITIAL (reduc_decl)); | |
20970 | DECL_INITIAL (reduc_decl) = t; | |
20971 | DECL_SOURCE_LOCATION (omp_out) = rloc; | |
20972 | TREE_VEC_ELT (TREE_VALUE (t), 0) = omp_out; | |
20973 | TREE_VEC_ELT (TREE_VALUE (t), 1) = omp_in; | |
20974 | TREE_VEC_ELT (TREE_VALUE (t), 2) = combiner.value; | |
20975 | walk_tree (&combiner.value, c_check_omp_declare_reduction_r, | |
20976 | &TREE_VEC_ELT (TREE_VALUE (t), 0), NULL); | |
20977 | if (omp_priv) | |
20978 | { | |
20979 | DECL_SOURCE_LOCATION (omp_priv) = rloc; | |
20980 | TREE_VEC_ELT (TREE_VALUE (t), 3) = omp_priv; | |
20981 | TREE_VEC_ELT (TREE_VALUE (t), 4) = omp_orig; | |
20982 | TREE_VEC_ELT (TREE_VALUE (t), 5) = initializer.value; | |
20983 | walk_tree (&initializer.value, c_check_omp_declare_reduction_r, | |
20984 | &TREE_VEC_ELT (TREE_VALUE (t), 3), NULL); | |
20985 | walk_tree (&DECL_INITIAL (omp_priv), | |
20986 | c_check_omp_declare_reduction_r, | |
20987 | &TREE_VEC_ELT (TREE_VALUE (t), 3), NULL); | |
20988 | } | |
20989 | } | |
a68ab351 | 20990 | |
acf0174b JJ |
20991 | pop_stmt_list (stmt); |
20992 | pop_scope (); | |
20993 | if (cfun->language != NULL) | |
20994 | { | |
20995 | ggc_free (cfun->language); | |
20996 | cfun->language = NULL; | |
20997 | } | |
20998 | set_cfun (NULL); | |
20999 | current_function_decl = NULL_TREE; | |
21000 | if (nested) | |
21001 | c_pop_function_context (); | |
a68ab351 | 21002 | |
acf0174b JJ |
21003 | if (!clauses.is_empty ()) |
21004 | { | |
21005 | parser->tokens = &parser->tokens_buf[0]; | |
21006 | parser->tokens_avail = tokens_avail; | |
21007 | } | |
21008 | if (bad) | |
21009 | goto fail; | |
21010 | if (errs != errorcount) | |
21011 | break; | |
21012 | } | |
a68ab351 | 21013 | |
acf0174b JJ |
21014 | clauses.release (); |
21015 | types.release (); | |
a68ab351 JJ |
21016 | } |
21017 | ||
953ff289 | 21018 | |
acf0174b JJ |
21019 | /* OpenMP 4.0 |
21020 | #pragma omp declare simd declare-simd-clauses[optseq] new-line | |
21021 | #pragma omp declare reduction (reduction-id : typename-list : expression) \ | |
21022 | initializer-clause[opt] new-line | |
94e7f906 JJ |
21023 | #pragma omp declare target new-line |
21024 | ||
21025 | OpenMP 5.0 | |
21026 | #pragma omp declare variant (identifier) match (context-selector) */ | |
20906c66 JJ |
21027 | |
21028 | static void | |
acf0174b | 21029 | c_parser_omp_declare (c_parser *parser, enum pragma_context context) |
20906c66 | 21030 | { |
20906c66 | 21031 | c_parser_consume_pragma (parser); |
acf0174b JJ |
21032 | if (c_parser_next_token_is (parser, CPP_NAME)) |
21033 | { | |
21034 | const char *p = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
21035 | if (strcmp (p, "simd") == 0) | |
21036 | { | |
21037 | /* c_parser_consume_token (parser); done in | |
21038 | c_parser_omp_declare_simd. */ | |
21039 | c_parser_omp_declare_simd (parser, context); | |
21040 | return; | |
21041 | } | |
21042 | if (strcmp (p, "reduction") == 0) | |
21043 | { | |
21044 | c_parser_consume_token (parser); | |
21045 | c_parser_omp_declare_reduction (parser, context); | |
21046 | return; | |
21047 | } | |
6d7f7e0a TB |
21048 | if (!flag_openmp) /* flag_openmp_simd */ |
21049 | { | |
62021f64 | 21050 | c_parser_skip_to_pragma_eol (parser, false); |
6d7f7e0a TB |
21051 | return; |
21052 | } | |
acf0174b JJ |
21053 | if (strcmp (p, "target") == 0) |
21054 | { | |
21055 | c_parser_consume_token (parser); | |
21056 | c_parser_omp_declare_target (parser); | |
21057 | return; | |
21058 | } | |
94e7f906 JJ |
21059 | if (strcmp (p, "variant") == 0) |
21060 | { | |
21061 | /* c_parser_consume_token (parser); done in | |
21062 | c_parser_omp_declare_simd. */ | |
21063 | c_parser_omp_declare_simd (parser, context); | |
21064 | return; | |
21065 | } | |
acf0174b | 21066 | } |
20906c66 | 21067 | |
94e7f906 JJ |
21068 | c_parser_error (parser, "expected %<simd%>, %<reduction%>, " |
21069 | "%<target%> or %<variant%>"); | |
acf0174b | 21070 | c_parser_skip_to_pragma_eol (parser); |
20906c66 JJ |
21071 | } |
21072 | ||
28567c40 JJ |
21073 | /* OpenMP 5.0 |
21074 | #pragma omp requires clauses[optseq] new-line */ | |
21075 | ||
21076 | static void | |
21077 | c_parser_omp_requires (c_parser *parser) | |
21078 | { | |
21079 | bool first = true; | |
21080 | enum omp_requires new_req = (enum omp_requires) 0; | |
21081 | ||
21082 | c_parser_consume_pragma (parser); | |
21083 | ||
21084 | location_t loc = c_parser_peek_token (parser)->location; | |
21085 | while (c_parser_next_token_is_not (parser, CPP_PRAGMA_EOL)) | |
21086 | { | |
21087 | if (!first && c_parser_next_token_is (parser, CPP_COMMA)) | |
21088 | c_parser_consume_token (parser); | |
21089 | ||
21090 | first = false; | |
21091 | ||
21092 | if (c_parser_next_token_is (parser, CPP_NAME)) | |
21093 | { | |
21094 | const char *p | |
21095 | = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
21096 | location_t cloc = c_parser_peek_token (parser)->location; | |
21097 | enum omp_requires this_req = (enum omp_requires) 0; | |
21098 | ||
21099 | if (!strcmp (p, "unified_address")) | |
21100 | this_req = OMP_REQUIRES_UNIFIED_ADDRESS; | |
21101 | else if (!strcmp (p, "unified_shared_memory")) | |
21102 | this_req = OMP_REQUIRES_UNIFIED_SHARED_MEMORY; | |
21103 | else if (!strcmp (p, "dynamic_allocators")) | |
21104 | this_req = OMP_REQUIRES_DYNAMIC_ALLOCATORS; | |
21105 | else if (!strcmp (p, "reverse_offload")) | |
21106 | this_req = OMP_REQUIRES_REVERSE_OFFLOAD; | |
21107 | else if (!strcmp (p, "atomic_default_mem_order")) | |
21108 | { | |
21109 | c_parser_consume_token (parser); | |
21110 | ||
21111 | matching_parens parens; | |
21112 | if (parens.require_open (parser)) | |
21113 | { | |
21114 | if (c_parser_next_token_is (parser, CPP_NAME)) | |
21115 | { | |
21116 | tree v = c_parser_peek_token (parser)->value; | |
21117 | p = IDENTIFIER_POINTER (v); | |
21118 | ||
21119 | if (!strcmp (p, "seq_cst")) | |
21120 | this_req | |
21121 | = (enum omp_requires) OMP_MEMORY_ORDER_SEQ_CST; | |
21122 | else if (!strcmp (p, "relaxed")) | |
21123 | this_req | |
21124 | = (enum omp_requires) OMP_MEMORY_ORDER_RELAXED; | |
21125 | else if (!strcmp (p, "acq_rel")) | |
21126 | this_req | |
21127 | = (enum omp_requires) OMP_MEMORY_ORDER_ACQ_REL; | |
21128 | } | |
21129 | if (this_req == 0) | |
21130 | { | |
21131 | error_at (c_parser_peek_token (parser)->location, | |
21132 | "expected %<seq_cst%>, %<relaxed%> or " | |
21133 | "%<acq_rel%>"); | |
21134 | if (c_parser_peek_2nd_token (parser)->type | |
21135 | == CPP_CLOSE_PAREN) | |
21136 | c_parser_consume_token (parser); | |
21137 | } | |
21138 | else | |
21139 | c_parser_consume_token (parser); | |
21140 | ||
21141 | parens.skip_until_found_close (parser); | |
21142 | if (this_req == 0) | |
21143 | { | |
21144 | c_parser_skip_to_pragma_eol (parser, false); | |
21145 | return; | |
21146 | } | |
21147 | } | |
21148 | p = NULL; | |
21149 | } | |
21150 | else | |
21151 | { | |
21152 | error_at (cloc, "expected %<unified_address%>, " | |
21153 | "%<unified_shared_memory%>, " | |
21154 | "%<dynamic_allocators%>, " | |
21155 | "%<reverse_offload%> " | |
21156 | "or %<atomic_default_mem_order%> clause"); | |
21157 | c_parser_skip_to_pragma_eol (parser, false); | |
21158 | return; | |
21159 | } | |
3179ebae JJ |
21160 | if (p) |
21161 | sorry_at (cloc, "%qs clause on %<requires%> directive not " | |
21162 | "supported yet", p); | |
28567c40 JJ |
21163 | if (p) |
21164 | c_parser_consume_token (parser); | |
21165 | if (this_req) | |
21166 | { | |
21167 | if ((this_req & ~OMP_REQUIRES_ATOMIC_DEFAULT_MEM_ORDER) != 0) | |
21168 | { | |
21169 | if ((this_req & new_req) != 0) | |
21170 | error_at (cloc, "too many %qs clauses", p); | |
21171 | if (this_req != OMP_REQUIRES_DYNAMIC_ALLOCATORS | |
21172 | && (omp_requires_mask & OMP_REQUIRES_TARGET_USED) != 0) | |
21173 | error_at (cloc, "%qs clause used lexically after first " | |
21174 | "target construct or offloading API", p); | |
21175 | } | |
21176 | else if ((new_req & OMP_REQUIRES_ATOMIC_DEFAULT_MEM_ORDER) != 0) | |
21177 | { | |
21178 | error_at (cloc, "too many %qs clauses", | |
21179 | "atomic_default_mem_order"); | |
21180 | this_req = (enum omp_requires) 0; | |
21181 | } | |
21182 | else if ((omp_requires_mask | |
21183 | & OMP_REQUIRES_ATOMIC_DEFAULT_MEM_ORDER) != 0) | |
21184 | { | |
21185 | error_at (cloc, "more than one %<atomic_default_mem_order%>" | |
21186 | " clause in a single compilation unit"); | |
21187 | this_req | |
21188 | = (enum omp_requires) | |
21189 | (omp_requires_mask | |
21190 | & OMP_REQUIRES_ATOMIC_DEFAULT_MEM_ORDER); | |
21191 | } | |
21192 | else if ((omp_requires_mask | |
21193 | & OMP_REQUIRES_ATOMIC_DEFAULT_MEM_ORDER_USED) != 0) | |
21194 | error_at (cloc, "%<atomic_default_mem_order%> clause used " | |
21195 | "lexically after first %<atomic%> construct " | |
21196 | "without memory order clause"); | |
21197 | new_req = (enum omp_requires) (new_req | this_req); | |
21198 | omp_requires_mask | |
21199 | = (enum omp_requires) (omp_requires_mask | this_req); | |
21200 | continue; | |
21201 | } | |
21202 | } | |
21203 | break; | |
21204 | } | |
21205 | c_parser_skip_to_pragma_eol (parser); | |
21206 | ||
21207 | if (new_req == 0) | |
21208 | error_at (loc, "%<pragma omp requires%> requires at least one clause"); | |
21209 | } | |
21210 | ||
21211 | /* Helper function for c_parser_omp_taskloop. | |
21212 | Disallow zero sized or potentially zero sized task reductions. */ | |
21213 | ||
21214 | static tree | |
21215 | c_finish_taskloop_clauses (tree clauses) | |
21216 | { | |
21217 | tree *pc = &clauses; | |
21218 | for (tree c = clauses; c; c = *pc) | |
21219 | { | |
21220 | bool remove = false; | |
21221 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_REDUCTION) | |
21222 | { | |
21223 | tree type = strip_array_types (TREE_TYPE (OMP_CLAUSE_DECL (c))); | |
21224 | if (integer_zerop (TYPE_SIZE_UNIT (type))) | |
21225 | { | |
21226 | error_at (OMP_CLAUSE_LOCATION (c), | |
21227 | "zero sized type %qT in %<reduction%> clause", type); | |
21228 | remove = true; | |
21229 | } | |
21230 | else if (TREE_CODE (TYPE_SIZE_UNIT (type)) != INTEGER_CST) | |
21231 | { | |
21232 | error_at (OMP_CLAUSE_LOCATION (c), | |
21233 | "variable sized type %qT in %<reduction%> clause", | |
21234 | type); | |
21235 | remove = true; | |
21236 | } | |
21237 | } | |
21238 | if (remove) | |
21239 | *pc = OMP_CLAUSE_CHAIN (c); | |
21240 | else | |
21241 | pc = &OMP_CLAUSE_CHAIN (c); | |
21242 | } | |
21243 | return clauses; | |
21244 | } | |
21245 | ||
d9a6bd32 JJ |
21246 | /* OpenMP 4.5: |
21247 | #pragma omp taskloop taskloop-clause[optseq] new-line | |
21248 | for-loop | |
21249 | ||
21250 | #pragma omp taskloop simd taskloop-simd-clause[optseq] new-line | |
21251 | for-loop */ | |
21252 | ||
21253 | #define OMP_TASKLOOP_CLAUSE_MASK \ | |
21254 | ( (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_SHARED) \ | |
21255 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_PRIVATE) \ | |
21256 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_FIRSTPRIVATE) \ | |
21257 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_LASTPRIVATE) \ | |
21258 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_DEFAULT) \ | |
21259 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_GRAINSIZE) \ | |
21260 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NUM_TASKS) \ | |
21261 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_COLLAPSE) \ | |
21262 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_UNTIED) \ | |
21263 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_IF) \ | |
21264 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_FINAL) \ | |
21265 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_MERGEABLE) \ | |
21266 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NOGROUP) \ | |
28567c40 JJ |
21267 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_PRIORITY) \ |
21268 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_REDUCTION) \ | |
21269 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_IN_REDUCTION)) | |
d9a6bd32 JJ |
21270 | |
21271 | static tree | |
21272 | c_parser_omp_taskloop (location_t loc, c_parser *parser, | |
dda1bf61 JJ |
21273 | char *p_name, omp_clause_mask mask, tree *cclauses, |
21274 | bool *if_p) | |
d9a6bd32 JJ |
21275 | { |
21276 | tree clauses, block, ret; | |
21277 | ||
21278 | strcat (p_name, " taskloop"); | |
21279 | mask |= OMP_TASKLOOP_CLAUSE_MASK; | |
28567c40 JJ |
21280 | /* #pragma omp parallel master taskloop{, simd} disallow in_reduction |
21281 | clause. */ | |
21282 | if ((mask & (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NUM_THREADS)) != 0) | |
21283 | mask &= ~(OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_IN_REDUCTION); | |
d9a6bd32 JJ |
21284 | |
21285 | if (c_parser_next_token_is (parser, CPP_NAME)) | |
21286 | { | |
21287 | const char *p = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value); | |
21288 | ||
21289 | if (strcmp (p, "simd") == 0) | |
21290 | { | |
21291 | tree cclauses_buf[C_OMP_CLAUSE_SPLIT_COUNT]; | |
21292 | if (cclauses == NULL) | |
21293 | cclauses = cclauses_buf; | |
d9a6bd32 JJ |
21294 | c_parser_consume_token (parser); |
21295 | if (!flag_openmp) /* flag_openmp_simd */ | |
dda1bf61 JJ |
21296 | return c_parser_omp_simd (loc, parser, p_name, mask, cclauses, |
21297 | if_p); | |
d9a6bd32 | 21298 | block = c_begin_compound_stmt (true); |
dda1bf61 | 21299 | ret = c_parser_omp_simd (loc, parser, p_name, mask, cclauses, if_p); |
d9a6bd32 JJ |
21300 | block = c_end_compound_stmt (loc, block, true); |
21301 | if (ret == NULL) | |
21302 | return ret; | |
21303 | ret = make_node (OMP_TASKLOOP); | |
21304 | TREE_TYPE (ret) = void_type_node; | |
21305 | OMP_FOR_BODY (ret) = block; | |
21306 | OMP_FOR_CLAUSES (ret) = cclauses[C_OMP_CLAUSE_SPLIT_TASKLOOP]; | |
28567c40 JJ |
21307 | OMP_FOR_CLAUSES (ret) |
21308 | = c_finish_taskloop_clauses (OMP_FOR_CLAUSES (ret)); | |
d9a6bd32 JJ |
21309 | SET_EXPR_LOCATION (ret, loc); |
21310 | add_stmt (ret); | |
21311 | return ret; | |
21312 | } | |
21313 | } | |
21314 | if (!flag_openmp) /* flag_openmp_simd */ | |
21315 | { | |
21316 | c_parser_skip_to_pragma_eol (parser, false); | |
21317 | return NULL_TREE; | |
21318 | } | |
21319 | ||
21320 | clauses = c_parser_omp_all_clauses (parser, mask, p_name, cclauses == NULL); | |
21321 | if (cclauses) | |
21322 | { | |
21323 | omp_split_clauses (loc, OMP_TASKLOOP, mask, clauses, cclauses); | |
21324 | clauses = cclauses[C_OMP_CLAUSE_SPLIT_TASKLOOP]; | |
21325 | } | |
21326 | ||
28567c40 | 21327 | clauses = c_finish_taskloop_clauses (clauses); |
d9a6bd32 | 21328 | block = c_begin_compound_stmt (true); |
dda1bf61 | 21329 | ret = c_parser_omp_for_loop (loc, parser, OMP_TASKLOOP, clauses, NULL, if_p); |
d9a6bd32 JJ |
21330 | block = c_end_compound_stmt (loc, block, true); |
21331 | add_stmt (block); | |
21332 | ||
21333 | return ret; | |
21334 | } | |
21335 | ||
953ff289 DN |
21336 | /* Main entry point to parsing most OpenMP pragmas. */ |
21337 | ||
21338 | static void | |
dda1bf61 | 21339 | c_parser_omp_construct (c_parser *parser, bool *if_p) |
953ff289 DN |
21340 | { |
21341 | enum pragma_kind p_kind; | |
21342 | location_t loc; | |
21343 | tree stmt; | |
acf0174b JJ |
21344 | char p_name[sizeof "#pragma omp teams distribute parallel for simd"]; |
21345 | omp_clause_mask mask (0); | |
953ff289 DN |
21346 | |
21347 | loc = c_parser_peek_token (parser)->location; | |
21348 | p_kind = c_parser_peek_token (parser)->pragma_kind; | |
21349 | c_parser_consume_pragma (parser); | |
21350 | ||
21351 | switch (p_kind) | |
21352 | { | |
4bf9e5a8 TS |
21353 | case PRAGMA_OACC_ATOMIC: |
21354 | c_parser_omp_atomic (loc, parser); | |
21355 | return; | |
41dbbb37 TS |
21356 | case PRAGMA_OACC_CACHE: |
21357 | strcpy (p_name, "#pragma acc"); | |
21358 | stmt = c_parser_oacc_cache (loc, parser); | |
21359 | break; | |
21360 | case PRAGMA_OACC_DATA: | |
dda1bf61 | 21361 | stmt = c_parser_oacc_data (loc, parser, if_p); |
41dbbb37 | 21362 | break; |
37d5ad46 | 21363 | case PRAGMA_OACC_HOST_DATA: |
dda1bf61 | 21364 | stmt = c_parser_oacc_host_data (loc, parser, if_p); |
37d5ad46 | 21365 | break; |
41dbbb37 | 21366 | case PRAGMA_OACC_KERNELS: |
88bae6f4 | 21367 | case PRAGMA_OACC_PARALLEL: |
62aee289 | 21368 | case PRAGMA_OACC_SERIAL: |
41dbbb37 | 21369 | strcpy (p_name, "#pragma acc"); |
62aee289 | 21370 | stmt = c_parser_oacc_compute (loc, parser, p_kind, p_name, if_p); |
41dbbb37 TS |
21371 | break; |
21372 | case PRAGMA_OACC_LOOP: | |
21373 | strcpy (p_name, "#pragma acc"); | |
dda1bf61 | 21374 | stmt = c_parser_oacc_loop (loc, parser, p_name, mask, NULL, if_p); |
41dbbb37 TS |
21375 | break; |
21376 | case PRAGMA_OACC_WAIT: | |
21377 | strcpy (p_name, "#pragma wait"); | |
21378 | stmt = c_parser_oacc_wait (loc, parser, p_name); | |
21379 | break; | |
953ff289 | 21380 | case PRAGMA_OMP_ATOMIC: |
c2255bc4 | 21381 | c_parser_omp_atomic (loc, parser); |
953ff289 DN |
21382 | return; |
21383 | case PRAGMA_OMP_CRITICAL: | |
dda1bf61 | 21384 | stmt = c_parser_omp_critical (loc, parser, if_p); |
953ff289 | 21385 | break; |
acf0174b JJ |
21386 | case PRAGMA_OMP_DISTRIBUTE: |
21387 | strcpy (p_name, "#pragma omp"); | |
dda1bf61 | 21388 | stmt = c_parser_omp_distribute (loc, parser, p_name, mask, NULL, if_p); |
acf0174b | 21389 | break; |
953ff289 | 21390 | case PRAGMA_OMP_FOR: |
acf0174b | 21391 | strcpy (p_name, "#pragma omp"); |
dda1bf61 | 21392 | stmt = c_parser_omp_for (loc, parser, p_name, mask, NULL, if_p); |
953ff289 | 21393 | break; |
554a530f JJ |
21394 | case PRAGMA_OMP_LOOP: |
21395 | strcpy (p_name, "#pragma omp"); | |
21396 | stmt = c_parser_omp_loop (loc, parser, p_name, mask, NULL, if_p); | |
21397 | break; | |
953ff289 | 21398 | case PRAGMA_OMP_MASTER: |
28567c40 JJ |
21399 | strcpy (p_name, "#pragma omp"); |
21400 | stmt = c_parser_omp_master (loc, parser, p_name, mask, NULL, if_p); | |
953ff289 | 21401 | break; |
953ff289 | 21402 | case PRAGMA_OMP_PARALLEL: |
acf0174b | 21403 | strcpy (p_name, "#pragma omp"); |
dda1bf61 | 21404 | stmt = c_parser_omp_parallel (loc, parser, p_name, mask, NULL, if_p); |
953ff289 DN |
21405 | break; |
21406 | case PRAGMA_OMP_SECTIONS: | |
acf0174b JJ |
21407 | strcpy (p_name, "#pragma omp"); |
21408 | stmt = c_parser_omp_sections (loc, parser, p_name, mask, NULL); | |
21409 | break; | |
21410 | case PRAGMA_OMP_SIMD: | |
21411 | strcpy (p_name, "#pragma omp"); | |
dda1bf61 | 21412 | stmt = c_parser_omp_simd (loc, parser, p_name, mask, NULL, if_p); |
953ff289 DN |
21413 | break; |
21414 | case PRAGMA_OMP_SINGLE: | |
dda1bf61 | 21415 | stmt = c_parser_omp_single (loc, parser, if_p); |
953ff289 | 21416 | break; |
a68ab351 | 21417 | case PRAGMA_OMP_TASK: |
dda1bf61 | 21418 | stmt = c_parser_omp_task (loc, parser, if_p); |
a68ab351 | 21419 | break; |
acf0174b | 21420 | case PRAGMA_OMP_TASKGROUP: |
28567c40 | 21421 | stmt = c_parser_omp_taskgroup (loc, parser, if_p); |
acf0174b | 21422 | break; |
d9a6bd32 JJ |
21423 | case PRAGMA_OMP_TASKLOOP: |
21424 | strcpy (p_name, "#pragma omp"); | |
dda1bf61 | 21425 | stmt = c_parser_omp_taskloop (loc, parser, p_name, mask, NULL, if_p); |
d9a6bd32 | 21426 | break; |
acf0174b JJ |
21427 | case PRAGMA_OMP_TEAMS: |
21428 | strcpy (p_name, "#pragma omp"); | |
dda1bf61 | 21429 | stmt = c_parser_omp_teams (loc, parser, p_name, mask, NULL, if_p); |
acf0174b | 21430 | break; |
953ff289 DN |
21431 | default: |
21432 | gcc_unreachable (); | |
21433 | } | |
21434 | ||
21435 | if (stmt) | |
c2255bc4 | 21436 | gcc_assert (EXPR_LOCATION (stmt) != UNKNOWN_LOCATION); |
953ff289 DN |
21437 | } |
21438 | ||
21439 | ||
21440 | /* OpenMP 2.5: | |
21441 | # pragma omp threadprivate (variable-list) */ | |
21442 | ||
21443 | static void | |
21444 | c_parser_omp_threadprivate (c_parser *parser) | |
21445 | { | |
21446 | tree vars, t; | |
c2255bc4 | 21447 | location_t loc; |
953ff289 DN |
21448 | |
21449 | c_parser_consume_pragma (parser); | |
c2255bc4 | 21450 | loc = c_parser_peek_token (parser)->location; |
d75d71e0 | 21451 | vars = c_parser_omp_var_list_parens (parser, OMP_CLAUSE_ERROR, NULL); |
953ff289 | 21452 | |
953ff289 DN |
21453 | /* Mark every variable in VARS to be assigned thread local storage. */ |
21454 | for (t = vars; t; t = TREE_CHAIN (t)) | |
21455 | { | |
21456 | tree v = TREE_PURPOSE (t); | |
21457 | ||
c2255bc4 AH |
21458 | /* FIXME diagnostics: Ideally we should keep individual |
21459 | locations for all the variables in the var list to make the | |
21460 | following errors more precise. Perhaps | |
21461 | c_parser_omp_var_list_parens() should construct a list of | |
21462 | locations to go along with the var list. */ | |
21463 | ||
953ff289 DN |
21464 | /* If V had already been marked threadprivate, it doesn't matter |
21465 | whether it had been used prior to this point. */ | |
0ae9bd27 | 21466 | if (!VAR_P (v)) |
c2255bc4 | 21467 | error_at (loc, "%qD is not a variable", v); |
5df27e4a | 21468 | else if (TREE_USED (v) && !C_DECL_THREADPRIVATE_P (v)) |
c2255bc4 | 21469 | error_at (loc, "%qE declared %<threadprivate%> after first use", v); |
62f9079a | 21470 | else if (! is_global_var (v)) |
c2255bc4 | 21471 | error_at (loc, "automatic variable %qE cannot be %<threadprivate%>", v); |
5df27e4a JJ |
21472 | else if (TREE_TYPE (v) == error_mark_node) |
21473 | ; | |
953ff289 | 21474 | else if (! COMPLETE_TYPE_P (TREE_TYPE (v))) |
c2255bc4 | 21475 | error_at (loc, "%<threadprivate%> %qE has incomplete type", v); |
953ff289 DN |
21476 | else |
21477 | { | |
21478 | if (! DECL_THREAD_LOCAL_P (v)) | |
21479 | { | |
56363ffd | 21480 | set_decl_tls_model (v, decl_default_tls_model (v)); |
953ff289 DN |
21481 | /* If rtl has been already set for this var, call |
21482 | make_decl_rtl once again, so that encode_section_info | |
21483 | has a chance to look at the new decl flags. */ | |
21484 | if (DECL_RTL_SET_P (v)) | |
21485 | make_decl_rtl (v); | |
21486 | } | |
21487 | C_DECL_THREADPRIVATE_P (v) = 1; | |
21488 | } | |
21489 | } | |
21490 | ||
21491 | c_parser_skip_to_pragma_eol (parser); | |
21492 | } | |
9a771876 | 21493 | |
0a35513e AH |
21494 | /* Parse a transaction attribute (GCC Extension). |
21495 | ||
21496 | transaction-attribute: | |
783bfe5e | 21497 | gnu-attributes |
c01bd174 JM |
21498 | attribute-specifier |
21499 | */ | |
0a35513e AH |
21500 | |
21501 | static tree | |
21502 | c_parser_transaction_attributes (c_parser *parser) | |
21503 | { | |
0a35513e | 21504 | if (c_parser_next_token_is_keyword (parser, RID_ATTRIBUTE)) |
783bfe5e | 21505 | return c_parser_gnu_attributes (parser); |
0a35513e AH |
21506 | |
21507 | if (!c_parser_next_token_is (parser, CPP_OPEN_SQUARE)) | |
21508 | return NULL_TREE; | |
c01bd174 | 21509 | return c_parser_std_attribute_specifier (parser, true); |
0a35513e AH |
21510 | } |
21511 | ||
21512 | /* Parse a __transaction_atomic or __transaction_relaxed statement | |
21513 | (GCC Extension). | |
21514 | ||
21515 | transaction-statement: | |
21516 | __transaction_atomic transaction-attribute[opt] compound-statement | |
21517 | __transaction_relaxed compound-statement | |
21518 | ||
21519 | Note that the only valid attribute is: "outer". | |
21520 | */ | |
21521 | ||
21522 | static tree | |
21523 | c_parser_transaction (c_parser *parser, enum rid keyword) | |
21524 | { | |
21525 | unsigned int old_in = parser->in_transaction; | |
21526 | unsigned int this_in = 1, new_in; | |
21527 | location_t loc = c_parser_peek_token (parser)->location; | |
21528 | tree stmt, attrs; | |
21529 | ||
21530 | gcc_assert ((keyword == RID_TRANSACTION_ATOMIC | |
21531 | || keyword == RID_TRANSACTION_RELAXED) | |
21532 | && c_parser_next_token_is_keyword (parser, keyword)); | |
21533 | c_parser_consume_token (parser); | |
21534 | ||
21535 | if (keyword == RID_TRANSACTION_RELAXED) | |
21536 | this_in |= TM_STMT_ATTR_RELAXED; | |
21537 | else | |
21538 | { | |
21539 | attrs = c_parser_transaction_attributes (parser); | |
21540 | if (attrs) | |
21541 | this_in |= parse_tm_stmt_attr (attrs, TM_STMT_ATTR_OUTER); | |
21542 | } | |
21543 | ||
21544 | /* Keep track if we're in the lexical scope of an outer transaction. */ | |
21545 | new_in = this_in | (old_in & TM_STMT_ATTR_OUTER); | |
21546 | ||
21547 | parser->in_transaction = new_in; | |
21548 | stmt = c_parser_compound_statement (parser); | |
21549 | parser->in_transaction = old_in; | |
21550 | ||
21551 | if (flag_tm) | |
21552 | stmt = c_finish_transaction (loc, stmt, this_in); | |
21553 | else | |
21554 | error_at (loc, (keyword == RID_TRANSACTION_ATOMIC ? | |
21555 | "%<__transaction_atomic%> without transactional memory support enabled" | |
21556 | : "%<__transaction_relaxed %> " | |
21557 | "without transactional memory support enabled")); | |
21558 | ||
21559 | return stmt; | |
21560 | } | |
21561 | ||
21562 | /* Parse a __transaction_atomic or __transaction_relaxed expression | |
21563 | (GCC Extension). | |
21564 | ||
21565 | transaction-expression: | |
21566 | __transaction_atomic ( expression ) | |
21567 | __transaction_relaxed ( expression ) | |
21568 | */ | |
21569 | ||
21570 | static struct c_expr | |
21571 | c_parser_transaction_expression (c_parser *parser, enum rid keyword) | |
21572 | { | |
21573 | struct c_expr ret; | |
21574 | unsigned int old_in = parser->in_transaction; | |
21575 | unsigned int this_in = 1; | |
21576 | location_t loc = c_parser_peek_token (parser)->location; | |
21577 | tree attrs; | |
21578 | ||
21579 | gcc_assert ((keyword == RID_TRANSACTION_ATOMIC | |
21580 | || keyword == RID_TRANSACTION_RELAXED) | |
21581 | && c_parser_next_token_is_keyword (parser, keyword)); | |
21582 | c_parser_consume_token (parser); | |
21583 | ||
21584 | if (keyword == RID_TRANSACTION_RELAXED) | |
21585 | this_in |= TM_STMT_ATTR_RELAXED; | |
21586 | else | |
21587 | { | |
21588 | attrs = c_parser_transaction_attributes (parser); | |
21589 | if (attrs) | |
21590 | this_in |= parse_tm_stmt_attr (attrs, 0); | |
21591 | } | |
21592 | ||
21593 | parser->in_transaction = this_in; | |
32129a17 DM |
21594 | matching_parens parens; |
21595 | if (parens.require_open (parser)) | |
0a35513e AH |
21596 | { |
21597 | tree expr = c_parser_expression (parser).value; | |
21598 | ret.original_type = TREE_TYPE (expr); | |
21599 | ret.value = build1 (TRANSACTION_EXPR, ret.original_type, expr); | |
21600 | if (this_in & TM_STMT_ATTR_RELAXED) | |
21601 | TRANSACTION_EXPR_RELAXED (ret.value) = 1; | |
21602 | SET_EXPR_LOCATION (ret.value, loc); | |
21603 | ret.original_code = TRANSACTION_EXPR; | |
32129a17 | 21604 | if (!parens.require_close (parser)) |
69b76518 TR |
21605 | { |
21606 | c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, NULL); | |
21607 | goto error; | |
21608 | } | |
0a35513e AH |
21609 | } |
21610 | else | |
21611 | { | |
69b76518 | 21612 | error: |
913884f7 | 21613 | ret.set_error (); |
0a35513e AH |
21614 | ret.original_code = ERROR_MARK; |
21615 | ret.original_type = NULL; | |
21616 | } | |
21617 | parser->in_transaction = old_in; | |
21618 | ||
21619 | if (!flag_tm) | |
21620 | error_at (loc, (keyword == RID_TRANSACTION_ATOMIC ? | |
21621 | "%<__transaction_atomic%> without transactional memory support enabled" | |
21622 | : "%<__transaction_relaxed %> " | |
21623 | "without transactional memory support enabled")); | |
21624 | ||
bef08b71 DM |
21625 | set_c_expr_source_range (&ret, loc, loc); |
21626 | ||
0a35513e AH |
21627 | return ret; |
21628 | } | |
21629 | ||
21630 | /* Parse a __transaction_cancel statement (GCC Extension). | |
21631 | ||
21632 | transaction-cancel-statement: | |
21633 | __transaction_cancel transaction-attribute[opt] ; | |
21634 | ||
21635 | Note that the only valid attribute is "outer". | |
21636 | */ | |
21637 | ||
21638 | static tree | |
acf0174b | 21639 | c_parser_transaction_cancel (c_parser *parser) |
0a35513e AH |
21640 | { |
21641 | location_t loc = c_parser_peek_token (parser)->location; | |
21642 | tree attrs; | |
21643 | bool is_outer = false; | |
21644 | ||
21645 | gcc_assert (c_parser_next_token_is_keyword (parser, RID_TRANSACTION_CANCEL)); | |
21646 | c_parser_consume_token (parser); | |
21647 | ||
21648 | attrs = c_parser_transaction_attributes (parser); | |
21649 | if (attrs) | |
21650 | is_outer = (parse_tm_stmt_attr (attrs, TM_STMT_ATTR_OUTER) != 0); | |
21651 | ||
21652 | if (!flag_tm) | |
21653 | { | |
21654 | error_at (loc, "%<__transaction_cancel%> without " | |
21655 | "transactional memory support enabled"); | |
21656 | goto ret_error; | |
21657 | } | |
21658 | else if (parser->in_transaction & TM_STMT_ATTR_RELAXED) | |
21659 | { | |
21660 | error_at (loc, "%<__transaction_cancel%> within a " | |
21661 | "%<__transaction_relaxed%>"); | |
21662 | goto ret_error; | |
21663 | } | |
21664 | else if (is_outer) | |
21665 | { | |
21666 | if ((parser->in_transaction & TM_STMT_ATTR_OUTER) == 0 | |
21667 | && !is_tm_may_cancel_outer (current_function_decl)) | |
21668 | { | |
21669 | error_at (loc, "outer %<__transaction_cancel%> not " | |
a9c697b8 MS |
21670 | "within outer %<__transaction_atomic%> or " |
21671 | "a %<transaction_may_cancel_outer%> function"); | |
0a35513e AH |
21672 | goto ret_error; |
21673 | } | |
21674 | } | |
21675 | else if (parser->in_transaction == 0) | |
21676 | { | |
21677 | error_at (loc, "%<__transaction_cancel%> not within " | |
21678 | "%<__transaction_atomic%>"); | |
21679 | goto ret_error; | |
21680 | } | |
21681 | ||
21682 | return add_stmt (build_tm_abort_call (loc, is_outer)); | |
21683 | ||
21684 | ret_error: | |
21685 | return build1 (NOP_EXPR, void_type_node, error_mark_node); | |
21686 | } | |
bc4071dd | 21687 | \f |
27bf414c JM |
21688 | /* Parse a single source file. */ |
21689 | ||
21690 | void | |
21691 | c_parse_file (void) | |
21692 | { | |
bc4071dd RH |
21693 | /* Use local storage to begin. If the first token is a pragma, parse it. |
21694 | If it is #pragma GCC pch_preprocess, then this will load a PCH file | |
21695 | which will cause garbage collection. */ | |
21696 | c_parser tparser; | |
21697 | ||
21698 | memset (&tparser, 0, sizeof tparser); | |
471c5330 | 21699 | tparser.translate_strings_p = true; |
acf0174b | 21700 | tparser.tokens = &tparser.tokens_buf[0]; |
bc4071dd RH |
21701 | the_parser = &tparser; |
21702 | ||
21703 | if (c_parser_peek_token (&tparser)->pragma_kind == PRAGMA_GCC_PCH_PREPROCESS) | |
21704 | c_parser_pragma_pch_preprocess (&tparser); | |
22f8849d IS |
21705 | else |
21706 | c_common_no_more_pch (); | |
bc4071dd | 21707 | |
766090c2 | 21708 | the_parser = ggc_alloc<c_parser> (); |
bc4071dd | 21709 | *the_parser = tparser; |
acf0174b JJ |
21710 | if (tparser.tokens == &tparser.tokens_buf[0]) |
21711 | the_parser->tokens = &the_parser->tokens_buf[0]; | |
bc4071dd | 21712 | |
f9417da1 RG |
21713 | /* Initialize EH, if we've been told to do so. */ |
21714 | if (flag_exceptions) | |
1d65f45c | 21715 | using_eh_for_cleanups (); |
f9417da1 | 21716 | |
27bf414c JM |
21717 | c_parser_translation_unit (the_parser); |
21718 | the_parser = NULL; | |
21719 | } | |
21720 | ||
c2e84327 DM |
21721 | /* Parse the body of a function declaration marked with "__RTL". |
21722 | ||
21723 | The RTL parser works on the level of characters read from a | |
21724 | FILE *, whereas c_parser works at the level of tokens. | |
21725 | Square this circle by consuming all of the tokens up to and | |
21726 | including the closing brace, recording the start/end of the RTL | |
21727 | fragment, and reopening the file and re-reading the relevant | |
21728 | lines within the RTL parser. | |
21729 | ||
21730 | This requires the opening and closing braces of the C function | |
21731 | to be on separate lines from the RTL they wrap. | |
21732 | ||
21733 | Take ownership of START_WITH_PASS, if non-NULL. */ | |
21734 | ||
9def91e9 | 21735 | location_t |
c2e84327 DM |
21736 | c_parser_parse_rtl_body (c_parser *parser, char *start_with_pass) |
21737 | { | |
21738 | if (!c_parser_require (parser, CPP_OPEN_BRACE, "expected %<{%>")) | |
21739 | { | |
21740 | free (start_with_pass); | |
9def91e9 | 21741 | return c_parser_peek_token (parser)->location; |
c2e84327 DM |
21742 | } |
21743 | ||
21744 | location_t start_loc = c_parser_peek_token (parser)->location; | |
21745 | ||
21746 | /* Consume all tokens, up to the closing brace, handling | |
21747 | matching pairs of braces in the rtl dump. */ | |
21748 | int num_open_braces = 1; | |
21749 | while (1) | |
21750 | { | |
21751 | switch (c_parser_peek_token (parser)->type) | |
21752 | { | |
21753 | case CPP_OPEN_BRACE: | |
21754 | num_open_braces++; | |
21755 | break; | |
21756 | case CPP_CLOSE_BRACE: | |
21757 | if (--num_open_braces == 0) | |
21758 | goto found_closing_brace; | |
21759 | break; | |
21760 | case CPP_EOF: | |
21761 | error_at (start_loc, "no closing brace"); | |
21762 | free (start_with_pass); | |
9def91e9 | 21763 | return c_parser_peek_token (parser)->location; |
c2e84327 DM |
21764 | default: |
21765 | break; | |
21766 | } | |
21767 | c_parser_consume_token (parser); | |
21768 | } | |
21769 | ||
21770 | found_closing_brace: | |
21771 | /* At the closing brace; record its location. */ | |
21772 | location_t end_loc = c_parser_peek_token (parser)->location; | |
21773 | ||
21774 | /* Consume the closing brace. */ | |
21775 | c_parser_consume_token (parser); | |
21776 | ||
21777 | /* Invoke the RTL parser. */ | |
21778 | if (!read_rtl_function_body_from_file_range (start_loc, end_loc)) | |
21779 | { | |
21780 | free (start_with_pass); | |
9def91e9 | 21781 | return end_loc; |
c2e84327 DM |
21782 | } |
21783 | ||
20a38017 MM |
21784 | /* Run the backend on the cfun created above, transferring ownership of |
21785 | START_WITH_PASS. */ | |
21786 | run_rtl_passes (start_with_pass); | |
9def91e9 | 21787 | return end_loc; |
c2e84327 DM |
21788 | } |
21789 | ||
d4a10d0a | 21790 | #include "gt-c-c-parser.h" |