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8da1b058 | 1 | /* Front-end tree definitions for GNU compiler. |
1574ef13 | 2 | Copyright (C) 1989, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
1e2d4dc1 | 3 | 2001, 2002, 2003, 2004 Free Software Foundation, Inc. |
8da1b058 | 4 | |
1322177d | 5 | This file is part of GCC. |
8da1b058 | 6 | |
1322177d LB |
7 | GCC is free software; you can redistribute it and/or modify it under |
8 | the terms of the GNU General Public License as published by the Free | |
9 | Software Foundation; either version 2, or (at your option) any later | |
10 | version. | |
8da1b058 | 11 | |
1322177d LB |
12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 | for more details. | |
8da1b058 RS |
16 | |
17 | You should have received a copy of the GNU General Public License | |
1322177d LB |
18 | along with GCC; see the file COPYING. If not, write to the Free |
19 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
20 | 02111-1307, USA. */ | |
8da1b058 | 21 | |
df89f8e7 GDR |
22 | #ifndef GCC_TREE_H |
23 | #define GCC_TREE_H | |
24 | ||
8da1b058 | 25 | #include "machmode.h" |
6060edcb | 26 | #include "input.h" |
b9dcdee4 | 27 | #include "statistics.h" |
8da1b058 | 28 | |
d6b12657 | 29 | /* Codes of tree nodes */ |
8da1b058 RS |
30 | |
31 | #define DEFTREECODE(SYM, STRING, TYPE, NARGS) SYM, | |
32 | ||
33 | enum tree_code { | |
34 | #include "tree.def" | |
35 | ||
6dc42e49 | 36 | LAST_AND_UNUSED_TREE_CODE /* A convenient way to get a value for |
cdc9d803 | 37 | NUM_TREE_CODES. */ |
8da1b058 RS |
38 | }; |
39 | ||
40 | #undef DEFTREECODE | |
41 | ||
8d5e6e25 RK |
42 | /* Number of language-independent tree codes. */ |
43 | #define NUM_TREE_CODES ((int) LAST_AND_UNUSED_TREE_CODE) | |
8da1b058 RS |
44 | |
45 | /* Indexed by enum tree_code, contains a character which is | |
46 | `<' for a comparison expression, `1', for a unary arithmetic | |
47 | expression, `2' for a binary arithmetic expression, `e' for | |
48 | other types of expressions, `r' for a reference, `c' for a | |
49 | constant, `d' for a decl, `t' for a type, `s' for a statement, | |
50 | and `x' for anything else (TREE_LIST, IDENTIFIER, etc). */ | |
51 | ||
0a6969ad | 52 | #define MAX_TREE_CODES 256 |
2f9834e8 | 53 | extern const char tree_code_type[]; |
0a6969ad | 54 | #define TREE_CODE_CLASS(CODE) tree_code_type[(int) (CODE)] |
8da1b058 | 55 | |
9cf737f8 | 56 | /* Returns nonzero iff CLASS is not the tree code of a type. */ |
4f976745 RK |
57 | |
58 | #define IS_NON_TYPE_CODE_CLASS(CLASS) (strchr ("xbcdr<12se", (CLASS)) != 0) | |
59 | ||
0e9e1e0a | 60 | /* Returns nonzero iff CLASS is the tree-code class of an |
4da05956 MM |
61 | expression. */ |
62 | ||
c25d44dd JM |
63 | #define IS_EXPR_CODE_CLASS(CLASS) (strchr ("<12ers", (CLASS)) != 0) |
64 | ||
65 | /* Returns nonzero iff NODE is an expression of some kind. */ | |
66 | ||
67 | #define EXPR_P(NODE) IS_EXPR_CODE_CLASS (TREE_CODE_CLASS (TREE_CODE (NODE))) | |
4da05956 | 68 | |
8da1b058 RS |
69 | /* Number of argument-words in each kind of tree-node. */ |
70 | ||
2f9834e8 | 71 | extern const unsigned char tree_code_length[]; |
8d5e6e25 | 72 | #define TREE_CODE_LENGTH(CODE) tree_code_length[(int) (CODE)] |
8da1b058 RS |
73 | |
74 | /* Names of tree components. */ | |
75 | ||
2f9834e8 | 76 | extern const char *const tree_code_name[]; |
8da1b058 | 77 | \f |
9df2c88c RK |
78 | /* Classify which part of the compiler has defined a given builtin function. |
79 | Note that we assume below that this is no more than two bits. */ | |
26db82d8 BS |
80 | enum built_in_class |
81 | { | |
82 | NOT_BUILT_IN = 0, | |
83 | BUILT_IN_FRONTEND, | |
84 | BUILT_IN_MD, | |
85 | BUILT_IN_NORMAL | |
86 | }; | |
9df2c88c RK |
87 | |
88 | /* Names for the above. */ | |
fd05eb80 | 89 | extern const char *const built_in_class_names[4]; |
9df2c88c | 90 | |
8da1b058 RS |
91 | /* Codes that identify the various built in functions |
92 | so that expand_call can identify them quickly. */ | |
93 | ||
272f51a3 | 94 | #define DEF_BUILTIN(ENUM, N, C, T, LT, B, F, NA, AT, IM) ENUM, |
8da1b058 RS |
95 | enum built_in_function |
96 | { | |
cb1072f4 | 97 | #include "builtins.def" |
972ded9c | 98 | |
2ba84f36 | 99 | /* Upper bound on non-language-specific builtins. */ |
972ded9c | 100 | END_BUILTINS |
8da1b058 | 101 | }; |
cb1072f4 | 102 | #undef DEF_BUILTIN |
9df2c88c RK |
103 | |
104 | /* Names for the above. */ | |
fd05eb80 | 105 | extern const char *const built_in_names[(int) END_BUILTINS]; |
3ff5f682 | 106 | |
82b4201f KG |
107 | /* Helper macros for math builtins. */ |
108 | ||
109 | #define BUILTIN_EXP10_P(FN) \ | |
110 | ((FN) == BUILT_IN_EXP10 || (FN) == BUILT_IN_EXP10F || (FN) == BUILT_IN_EXP10L \ | |
111 | || (FN) == BUILT_IN_POW10 || (FN) == BUILT_IN_POW10F || (FN) == BUILT_IN_POW10L) | |
112 | ||
113 | #define BUILTIN_EXPONENT_P(FN) (BUILTIN_EXP10_P (FN) \ | |
114 | || (FN) == BUILT_IN_EXP || (FN) == BUILT_IN_EXPF || (FN) == BUILT_IN_EXPL \ | |
115 | || (FN) == BUILT_IN_EXP2 || (FN) == BUILT_IN_EXP2F || (FN) == BUILT_IN_EXP2L) | |
116 | ||
117 | #define BUILTIN_SQRT_P(FN) \ | |
118 | ((FN) == BUILT_IN_SQRT || (FN) == BUILT_IN_SQRTF || (FN) == BUILT_IN_SQRTL) | |
119 | ||
120 | #define BUILTIN_CBRT_P(FN) \ | |
121 | ((FN) == BUILT_IN_CBRT || (FN) == BUILT_IN_CBRTF || (FN) == BUILT_IN_CBRTL) | |
122 | ||
123 | #define BUILTIN_ROOT_P(FN) (BUILTIN_SQRT_P (FN) || BUILTIN_CBRT_P (FN)) | |
124 | ||
3ff5f682 | 125 | /* An array of _DECL trees for the above. */ |
17211ab5 | 126 | extern GTY(()) tree built_in_decls[(int) END_BUILTINS]; |
272f51a3 | 127 | extern GTY(()) tree implicit_built_in_decls[(int) END_BUILTINS]; |
8da1b058 RS |
128 | \f |
129 | /* The definition of tree nodes fills the next several pages. */ | |
130 | ||
131 | /* A tree node can represent a data type, a variable, an expression | |
132 | or a statement. Each node has a TREE_CODE which says what kind of | |
133 | thing it represents. Some common codes are: | |
134 | INTEGER_TYPE -- represents a type of integers. | |
135 | ARRAY_TYPE -- represents a type of pointer. | |
136 | VAR_DECL -- represents a declared variable. | |
137 | INTEGER_CST -- represents a constant integer value. | |
138 | PLUS_EXPR -- represents a sum (an expression). | |
139 | ||
140 | As for the contents of a tree node: there are some fields | |
141 | that all nodes share. Each TREE_CODE has various special-purpose | |
142 | fields as well. The fields of a node are never accessed directly, | |
143 | always through accessor macros. */ | |
144 | ||
8da1b058 RS |
145 | /* Every kind of tree node starts with this structure, |
146 | so all nodes have these fields. | |
147 | ||
76c9d226 | 148 | See the accessor macros, defined below, for documentation of the |
eebedaa5 | 149 | fields. */ |
6de9cd9a | 150 | union tree_ann_d; |
8da1b058 | 151 | |
e2500fed | 152 | struct tree_common GTY(()) |
8da1b058 | 153 | { |
2f78c311 ZW |
154 | tree chain; |
155 | tree type; | |
6de9cd9a | 156 | union tree_ann_d *ann; |
ae34ac46 | 157 | |
c149cc37 | 158 | ENUM_BITFIELD(tree_code) code : 8; |
ae34ac46 | 159 | |
8da1b058 RS |
160 | unsigned side_effects_flag : 1; |
161 | unsigned constant_flag : 1; | |
8da1b058 RS |
162 | unsigned addressable_flag : 1; |
163 | unsigned volatile_flag : 1; | |
164 | unsigned readonly_flag : 1; | |
165 | unsigned unsigned_flag : 1; | |
166 | unsigned asm_written_flag: 1; | |
6de9cd9a | 167 | unsigned nowarning_flag : 1; |
4f976745 | 168 | |
6de9cd9a | 169 | unsigned used_flag : 1; |
12a22e76 | 170 | unsigned nothrow_flag : 1; |
8da1b058 RS |
171 | unsigned static_flag : 1; |
172 | unsigned public_flag : 1; | |
173 | unsigned private_flag : 1; | |
174 | unsigned protected_flag : 1; | |
e23bd218 | 175 | unsigned deprecated_flag : 1; |
6de9cd9a | 176 | unsigned invariant_flag : 1; |
8da1b058 RS |
177 | |
178 | unsigned lang_flag_0 : 1; | |
179 | unsigned lang_flag_1 : 1; | |
180 | unsigned lang_flag_2 : 1; | |
181 | unsigned lang_flag_3 : 1; | |
182 | unsigned lang_flag_4 : 1; | |
183 | unsigned lang_flag_5 : 1; | |
184 | unsigned lang_flag_6 : 1; | |
6de9cd9a | 185 | unsigned visited : 1; |
8da1b058 RS |
186 | }; |
187 | ||
a5f99f01 RK |
188 | /* The following table lists the uses of each of the above flags and |
189 | for which types of nodes they are defined. Note that expressions | |
190 | include decls. | |
191 | ||
192 | addressable_flag: | |
193 | ||
194 | TREE_ADDRESSABLE in | |
46c5ad27 | 195 | VAR_DECL, FUNCTION_DECL, FIELD_DECL, CONSTRUCTOR, LABEL_DECL, |
1574ef13 AO |
196 | ..._TYPE, IDENTIFIER_NODE. |
197 | In a STMT_EXPR, it means we want the result of the enclosed | |
198 | expression. | |
6de9cd9a | 199 | CALL_EXPR_TAILCALL in CALL_EXPR |
a5f99f01 RK |
200 | |
201 | static_flag: | |
202 | ||
203 | TREE_STATIC in | |
e5e809f4 | 204 | VAR_DECL, FUNCTION_DECL, CONSTRUCTOR, ADDR_EXPR |
a5f99f01 RK |
205 | TREE_VIA_VIRTUAL in |
206 | TREE_LIST or TREE_VEC | |
207 | TREE_CONSTANT_OVERFLOW in | |
69ef87e2 | 208 | INTEGER_CST, REAL_CST, COMPLEX_CST, VECTOR_CST |
a5f99f01 RK |
209 | TREE_SYMBOL_REFERENCED in |
210 | IDENTIFIER_NODE | |
659e5a7a JM |
211 | CLEANUP_EH_ONLY in |
212 | TARGET_EXPR, WITH_CLEANUP_EXPR, CLEANUP_STMT, | |
213 | TREE_LIST elements of a block's cleanup list. | |
6de9cd9a DN |
214 | ASM_INPUT_P in |
215 | ASM_EXPR | |
216 | EH_FILTER_MUST_NOT_THROW in EH_FILTER_EXPR | |
22421b79 RK |
217 | TYPE_REF_CAN_ALIAS_ALL in |
218 | POINTER_TYPE, REFERENCE_TYPE | |
a5f99f01 RK |
219 | |
220 | public_flag: | |
221 | ||
222 | TREE_OVERFLOW in | |
69ef87e2 | 223 | INTEGER_CST, REAL_CST, COMPLEX_CST, VECTOR_CST |
22421b79 | 224 | ??? and other expressions? |
a5f99f01 | 225 | TREE_PUBLIC in |
4c521bad | 226 | VAR_DECL or FUNCTION_DECL or IDENTIFIER_NODE |
6de9cd9a DN |
227 | TREE_VIA_PUBLIC in |
228 | TREE_LIST or TREE_VEC | |
229 | ASM_VOLATILE_P in | |
230 | ASM_EXPR | |
a5f99f01 RK |
231 | |
232 | private_flag: | |
233 | ||
a5f99f01 | 234 | TREE_PRIVATE in |
659e5a7a | 235 | ..._DECL |
4977bab6 ZW |
236 | CALL_EXPR_HAS_RETURN_SLOT_ADDR in |
237 | CALL_EXPR | |
a5f99f01 RK |
238 | |
239 | protected_flag: | |
240 | ||
a5f99f01 RK |
241 | TREE_PROTECTED in |
242 | BLOCK | |
659e5a7a | 243 | ..._DECL |
dd292d0a MM |
244 | CALL_FROM_THUNK_P in |
245 | CALL_EXPR | |
a5f99f01 RK |
246 | |
247 | side_effects_flag: | |
248 | ||
249 | TREE_SIDE_EFFECTS in | |
250 | all expressions | |
4f976745 RK |
251 | all decls |
252 | all constants | |
a5f99f01 | 253 | |
6de9cd9a DN |
254 | FORCED_LABEL in |
255 | LABEL_DECL | |
256 | ||
a5f99f01 RK |
257 | volatile_flag: |
258 | ||
259 | TREE_THIS_VOLATILE in | |
260 | all expressions | |
261 | TYPE_VOLATILE in | |
262 | ..._TYPE | |
263 | ||
264 | readonly_flag: | |
265 | ||
266 | TREE_READONLY in | |
e5e809f4 | 267 | all expressions |
a5f99f01 RK |
268 | TYPE_READONLY in |
269 | ..._TYPE | |
270 | ||
271 | constant_flag: | |
272 | ||
273 | TREE_CONSTANT in | |
274 | all expressions | |
4f976745 RK |
275 | all decls |
276 | all constants | |
a5f99f01 | 277 | |
a5f99f01 RK |
278 | unsigned_flag: |
279 | ||
8df83eae RK |
280 | TYPE_UNSIGNED in |
281 | all types | |
a150de29 RK |
282 | DECL_UNSIGNED in |
283 | all decls | |
284 | BIT_FIELD_REF_UNSIGNED in | |
285 | BIT_FIELD_REF | |
e9a25f70 JL |
286 | SAVE_EXPR_NOPLACEHOLDER in |
287 | SAVE_EXPR | |
a5f99f01 RK |
288 | |
289 | asm_written_flag: | |
290 | ||
291 | TREE_ASM_WRITTEN in | |
292 | VAR_DECL, FUNCTION_DECL, RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE | |
6de9cd9a | 293 | BLOCK, SSA_NAME |
a5f99f01 RK |
294 | |
295 | used_flag: | |
296 | ||
297 | TREE_USED in | |
298 | expressions, IDENTIFIER_NODE | |
299 | ||
12a22e76 | 300 | nothrow_flag: |
a5f99f01 | 301 | |
12a22e76 JM |
302 | TREE_NOTHROW in |
303 | CALL_EXPR, FUNCTION_DECL | |
a5f99f01 | 304 | |
1e2d4dc1 RK |
305 | TYPE_ALIGN_OK in |
306 | ..._TYPE | |
307 | ||
e23bd218 IR |
308 | deprecated_flag: |
309 | ||
310 | TREE_DEPRECATED in | |
311 | ..._DECL | |
dd292d0a | 312 | |
6de9cd9a DN |
313 | visited: |
314 | ||
315 | Used in tree traversals to mark visited nodes. | |
316 | ||
317 | invariant_flag: | |
318 | ||
319 | TREE_INVARIANT in | |
320 | all expressions. | |
321 | ||
322 | nowarning_flag: | |
323 | ||
324 | TREE_NO_WARNING in | |
325 | ... any expr node | |
e23bd218 | 326 | */ |
a6d7adfd | 327 | |
8da1b058 RS |
328 | /* Define accessors for the fields that all tree nodes have |
329 | (though some fields are not used for all kinds of nodes). */ | |
330 | ||
331 | /* The tree-code says what kind of node it is. | |
332 | Codes are defined in tree.def. */ | |
333 | #define TREE_CODE(NODE) ((enum tree_code) (NODE)->common.code) | |
7e7c843f | 334 | #define TREE_SET_CODE(NODE, VALUE) ((NODE)->common.code = (VALUE)) |
8da1b058 | 335 | |
12b195d9 | 336 | /* When checking is enabled, errors will be generated if a tree node |
8f985ec4 | 337 | is accessed incorrectly. The macros abort with a fatal error. */ |
f4524c9e | 338 | #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007) |
12b195d9 | 339 | |
7f42b6d7 RK |
340 | #define TREE_CHECK(T, CODE) __extension__ \ |
341 | ({ const tree __t = (T); \ | |
342 | if (TREE_CODE (__t) != (CODE)) \ | |
343 | tree_check_failed (__t, (CODE), __FILE__, __LINE__, __FUNCTION__); \ | |
8f985ec4 | 344 | __t; }) |
7f42b6d7 | 345 | |
eb34af89 RK |
346 | #define TREE_CHECK2(T, CODE1, CODE2) __extension__ \ |
347 | ({ const tree __t = (T); \ | |
348 | if (TREE_CODE (__t) != (CODE1) \ | |
349 | && TREE_CODE (__t) != (CODE2)) \ | |
350 | tree_check2_failed (__t, (CODE1), (CODE2), __FILE__, __LINE__, \ | |
351 | __FUNCTION__); \ | |
352 | __t; }) | |
353 | ||
354 | #define TREE_CHECK3(T, CODE1, CODE2, CODE3) __extension__ \ | |
355 | ({ const tree __t = (T); \ | |
356 | if (TREE_CODE (__t) != (CODE1) \ | |
357 | && TREE_CODE (__t) != (CODE2) \ | |
358 | && TREE_CODE (__t) != (CODE3)) \ | |
359 | tree_check3_failed (__t, (CODE1), (CODE2), (CODE3), __FILE__, \ | |
360 | __LINE__, __FUNCTION__); \ | |
361 | __t; }) | |
362 | ||
22421b79 RK |
363 | #define TREE_CHECK4(T, CODE1, CODE2, CODE3, CODE4) __extension__ \ |
364 | ({ const tree __t = (T); \ | |
365 | if (TREE_CODE (__t) != (CODE1) \ | |
366 | && TREE_CODE (__t) != (CODE2) \ | |
367 | && TREE_CODE (__t) != (CODE3) \ | |
368 | && TREE_CODE (__t) != (CODE4)) \ | |
369 | tree_check4_failed (__t, (CODE1), (CODE2), (CODE3), (CODE4), \ | |
370 | __FILE__, __LINE__, __FUNCTION__); \ | |
371 | __t; }) | |
372 | ||
eb34af89 RK |
373 | #define TREE_CHECK5(T, CODE1, CODE2, CODE3, CODE4, CODE5) __extension__ \ |
374 | ({ const tree __t = (T); \ | |
375 | if (TREE_CODE (__t) != (CODE1) \ | |
376 | && TREE_CODE (__t) != (CODE2) \ | |
377 | && TREE_CODE (__t) != (CODE3) \ | |
378 | && TREE_CODE (__t) != (CODE4) \ | |
379 | && TREE_CODE (__t) != (CODE5)) \ | |
380 | tree_check5_failed (__t, (CODE1), (CODE2), (CODE3), (CODE4), \ | |
381 | (CODE5), __FILE__, __LINE__, __FUNCTION__); \ | |
382 | __t; }) | |
383 | ||
7f42b6d7 RK |
384 | #define TREE_CLASS_CHECK(T, CLASS) __extension__ \ |
385 | ({ const tree __t = (T); \ | |
386 | if (TREE_CODE_CLASS (TREE_CODE(__t)) != (CLASS)) \ | |
387 | tree_class_check_failed (__t, (CLASS), __FILE__, __LINE__, \ | |
b9daac31 | 388 | __FUNCTION__); \ |
8f985ec4 ZW |
389 | __t; }) |
390 | ||
391 | /* These checks have to be special cased. */ | |
7f42b6d7 RK |
392 | #define EXPR_CHECK(T) __extension__ \ |
393 | ({ const tree __t = (T); \ | |
394 | char const __c = TREE_CODE_CLASS (TREE_CODE (__t)); \ | |
68ad9159 | 395 | if (!IS_EXPR_CODE_CLASS (__c)) \ |
4f976745 RK |
396 | tree_class_check_failed (__t, 'E', __FILE__, __LINE__, \ |
397 | __FUNCTION__); \ | |
398 | __t; }) | |
399 | ||
400 | /* These checks have to be special cased. */ | |
401 | #define NON_TYPE_CHECK(T) __extension__ \ | |
402 | ({ const tree __t = (T); \ | |
403 | char const __c = TREE_CODE_CLASS (TREE_CODE (__t)); \ | |
404 | if (!IS_NON_TYPE_CODE_CLASS (__c)) \ | |
405 | tree_class_check_failed (__t, 'T', __FILE__, __LINE__, \ | |
b9daac31 | 406 | __FUNCTION__); \ |
8f985ec4 ZW |
407 | __t; }) |
408 | ||
7f42b6d7 RK |
409 | #define TREE_VEC_ELT_CHECK(T, I) __extension__ \ |
410 | (*({const tree __t = (T); \ | |
411 | const int __i = (I); \ | |
fa7b533b ZW |
412 | if (TREE_CODE (__t) != TREE_VEC) \ |
413 | tree_check_failed (__t, TREE_VEC, \ | |
414 | __FILE__, __LINE__, __FUNCTION__); \ | |
415 | if (__i < 0 || __i >= __t->vec.length) \ | |
416 | tree_vec_elt_check_failed (__i, __t->vec.length, \ | |
417 | __FILE__, __LINE__, __FUNCTION__); \ | |
418 | &__t->vec.a[__i]; })) | |
419 | ||
6de9cd9a DN |
420 | #define PHI_NODE_ELT_CHECK(t, i) __extension__ \ |
421 | (*({const tree __t = t; \ | |
422 | const int __i = (i); \ | |
423 | if (TREE_CODE (__t) != PHI_NODE) \ | |
424 | tree_check_failed (__t, PHI_NODE, \ | |
425 | __FILE__, __LINE__, __FUNCTION__); \ | |
426 | if (__i < 0 || __i >= __t->phi.capacity) \ | |
427 | phi_node_elt_check_failed (__i, __t->phi.num_args, \ | |
428 | __FILE__, __LINE__, __FUNCTION__); \ | |
429 | &__t->phi.a[__i]; })) | |
430 | ||
06790e5f | 431 | /* Special checks for TREE_OPERANDs. */ |
7f42b6d7 | 432 | #define TREE_OPERAND_CHECK(T, I) __extension__ \ |
55448d12 | 433 | (*({const tree __t = EXPR_CHECK (T); \ |
7f42b6d7 | 434 | const int __i = (I); \ |
06790e5f ZW |
435 | if (__i < 0 || __i >= TREE_CODE_LENGTH (TREE_CODE (__t))) \ |
436 | tree_operand_check_failed (__i, TREE_CODE (__t), \ | |
437 | __FILE__, __LINE__, __FUNCTION__); \ | |
438 | &__t->exp.operands[__i]; })) | |
439 | ||
7f42b6d7 RK |
440 | #define TREE_OPERAND_CHECK_CODE(T, CODE, I) __extension__ \ |
441 | (*({const tree __t = (T); \ | |
442 | const int __i = (I); \ | |
443 | if (TREE_CODE (__t) != CODE) \ | |
444 | tree_check_failed (__t, CODE, __FILE__, __LINE__, __FUNCTION__); \ | |
445 | if (__i < 0 || __i >= TREE_CODE_LENGTH (CODE)) \ | |
446 | tree_operand_check_failed (__i, (CODE), \ | |
06790e5f ZW |
447 | __FILE__, __LINE__, __FUNCTION__); \ |
448 | &__t->exp.operands[__i]; })) | |
449 | ||
7f42b6d7 | 450 | #define TREE_RTL_OPERAND_CHECK(T, CODE, I) __extension__ \ |
06790e5f | 451 | (*(rtx *) \ |
7f42b6d7 RK |
452 | ({const tree __t = (T); \ |
453 | const int __i = (I); \ | |
454 | if (TREE_CODE (__t) != (CODE)) \ | |
455 | tree_check_failed (__t, (CODE), __FILE__, __LINE__, __FUNCTION__); \ | |
456 | if (__i < 0 || __i >= TREE_CODE_LENGTH ((CODE))) \ | |
457 | tree_operand_check_failed (__i, (CODE), \ | |
06790e5f ZW |
458 | __FILE__, __LINE__, __FUNCTION__); \ |
459 | &__t->exp.operands[__i]; })) | |
460 | ||
46c5ad27 AJ |
461 | extern void tree_check_failed (const tree, enum tree_code, |
462 | const char *, int, const char *) | |
8f985ec4 | 463 | ATTRIBUTE_NORETURN; |
eb34af89 RK |
464 | extern void tree_check2_failed (const tree, enum tree_code, enum tree_code, |
465 | const char *, int, const char *) | |
466 | ATTRIBUTE_NORETURN; | |
467 | extern void tree_check3_failed (const tree, enum tree_code, enum tree_code, | |
468 | enum tree_code, const char *, int, | |
469 | const char *) | |
470 | ATTRIBUTE_NORETURN; | |
22421b79 RK |
471 | extern void tree_check4_failed (const tree, enum tree_code, enum tree_code, |
472 | enum tree_code, enum tree_code, | |
473 | const char *, int, const char *) | |
474 | ATTRIBUTE_NORETURN; | |
eb34af89 RK |
475 | extern void tree_check5_failed (const tree, enum tree_code, enum tree_code, |
476 | enum tree_code, enum tree_code, enum tree_code, | |
477 | const char *, int, const char *) | |
478 | ATTRIBUTE_NORETURN; | |
46c5ad27 AJ |
479 | extern void tree_class_check_failed (const tree, int, |
480 | const char *, int, const char *) | |
8f985ec4 | 481 | ATTRIBUTE_NORETURN; |
46c5ad27 AJ |
482 | extern void tree_vec_elt_check_failed (int, int, const char *, |
483 | int, const char *) | |
fa7b533b | 484 | ATTRIBUTE_NORETURN; |
6de9cd9a DN |
485 | extern void phi_node_elt_check_failed (int, int, const char *, |
486 | int, const char *) | |
487 | ATTRIBUTE_NORETURN; | |
46c5ad27 AJ |
488 | extern void tree_operand_check_failed (int, enum tree_code, |
489 | const char *, int, const char *) | |
06790e5f | 490 | ATTRIBUTE_NORETURN; |
46c5ad27 | 491 | |
f4524c9e | 492 | #else /* not ENABLE_TREE_CHECKING, or not gcc */ |
12b195d9 | 493 | |
eb34af89 RK |
494 | #define TREE_CHECK(T, CODE) (T) |
495 | #define TREE_CHECK2(T, CODE1, CODE2) (T) | |
496 | #define TREE_CHECK3(T, CODE1, CODE2, CODE3) (T) | |
22421b79 | 497 | #define TREE_CHECK4(T, CODE1, CODE2, CODE3, CODE4) (T) |
eb34af89 RK |
498 | #define TREE_CHECK5(T, CODE1, CODE2, CODE3, CODE4, CODE5) (T) |
499 | #define TREE_CLASS_CHECK(T, CODE) (T) | |
500 | #define EXPR_CHECK(T) (T) | |
4f976745 | 501 | #define NON_TYPE_CHECK(T) (T) |
eb34af89 RK |
502 | #define TREE_VEC_ELT_CHECK(T, I) ((T)->vec.a[I]) |
503 | #define TREE_OPERAND_CHECK(T, I) ((T)->exp.operands[I]) | |
504 | #define TREE_OPERAND_CHECK_CODE(T, CODE, I) ((T)->exp.operands[I]) | |
7f42b6d7 | 505 | #define TREE_RTL_OPERAND_CHECK(T, CODE, I) (*(rtx *) &((T)->exp.operands[I])) |
6de9cd9a | 506 | #define PHI_NODE_ELT_CHECK(T, i) ((T)->phi.a[i]) |
8f985ec4 ZW |
507 | |
508 | #endif | |
509 | ||
6de9cd9a DN |
510 | #define TREE_BLOCK(NODE) ((NODE)->exp.block) |
511 | ||
8f985ec4 ZW |
512 | #include "tree-check.h" |
513 | ||
7f42b6d7 RK |
514 | #define TYPE_CHECK(T) TREE_CLASS_CHECK (T, 't') |
515 | #define DECL_CHECK(T) TREE_CLASS_CHECK (T, 'd') | |
516 | #define CST_CHECK(T) TREE_CLASS_CHECK (T, 'c') | |
517 | #define STMT_CHECK(T) TREE_CLASS_CHECK (T, 's') | |
eb34af89 | 518 | #define FUNC_OR_METHOD_CHECK(T) TREE_CHECK2 (T, FUNCTION_TYPE, METHOD_TYPE) |
22421b79 | 519 | #define PTR_OR_REF_CHECK(T) TREE_CHECK2 (T, POINTER_TYPE, REFERENCE_TYPE) |
eb34af89 | 520 | |
5c5214a9 ZW |
521 | #define SET_OR_ARRAY_CHECK(T) \ |
522 | TREE_CHECK2 (T, ARRAY_TYPE, SET_TYPE) | |
eb34af89 RK |
523 | |
524 | #define REC_OR_UNION_CHECK(T) \ | |
525 | TREE_CHECK3 (T, RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE) | |
526 | ||
527 | #define NUMERICAL_TYPE_CHECK(T) \ | |
528 | TREE_CHECK5 (T, INTEGER_TYPE, ENUMERAL_TYPE, BOOLEAN_TYPE, \ | |
529 | CHAR_TYPE, REAL_TYPE) | |
12b195d9 | 530 | |
8da1b058 RS |
531 | /* In all nodes that are expressions, this is the data type of the expression. |
532 | In POINTER_TYPE nodes, this is the type that the pointer points to. | |
0b4565c9 BS |
533 | In ARRAY_TYPE nodes, this is the type of the elements. |
534 | In VECTOR_TYPE nodes, this is the type of the elements. */ | |
8da1b058 RS |
535 | #define TREE_TYPE(NODE) ((NODE)->common.type) |
536 | ||
1c0cc57e KG |
537 | /* Here is how primitive or already-canonicalized types' hash codes |
538 | are made. */ | |
fd917e0d JM |
539 | #define TYPE_HASH(TYPE) (TYPE_UID (TYPE)) |
540 | ||
541 | /* A simple hash function for an arbitrary tree node. This must not be | |
542 | used in hash tables which are saved to a PCH. */ | |
543 | #define TREE_HASH(NODE) ((size_t) (NODE) & 0777777) | |
1c0cc57e | 544 | |
8da1b058 RS |
545 | /* Nodes are chained together for many purposes. |
546 | Types are chained together to record them for being output to the debugger | |
547 | (see the function `chain_type'). | |
548 | Decls in the same scope are chained together to record the contents | |
549 | of the scope. | |
550 | Statement nodes for successive statements used to be chained together. | |
551 | Often lists of things are represented by TREE_LIST nodes that | |
552 | are chained together. */ | |
553 | ||
554 | #define TREE_CHAIN(NODE) ((NODE)->common.chain) | |
555 | ||
556 | /* Given an expression as a tree, strip any NON_LVALUE_EXPRs and NOP_EXPRs | |
557 | that don't change the machine mode. */ | |
558 | ||
9a6bb3f7 | 559 | #define STRIP_NOPS(EXP) \ |
8da1b058 RS |
560 | while ((TREE_CODE (EXP) == NOP_EXPR \ |
561 | || TREE_CODE (EXP) == CONVERT_EXPR \ | |
562 | || TREE_CODE (EXP) == NON_LVALUE_EXPR) \ | |
9a6bb3f7 | 563 | && TREE_OPERAND (EXP, 0) != error_mark_node \ |
8da1b058 RS |
564 | && (TYPE_MODE (TREE_TYPE (EXP)) \ |
565 | == TYPE_MODE (TREE_TYPE (TREE_OPERAND (EXP, 0))))) \ | |
713cc17b | 566 | (EXP) = TREE_OPERAND (EXP, 0) |
0fafb45e | 567 | |
14a774a9 RK |
568 | /* Like STRIP_NOPS, but don't let the signedness change either. */ |
569 | ||
570 | #define STRIP_SIGN_NOPS(EXP) \ | |
571 | while ((TREE_CODE (EXP) == NOP_EXPR \ | |
572 | || TREE_CODE (EXP) == CONVERT_EXPR \ | |
573 | || TREE_CODE (EXP) == NON_LVALUE_EXPR) \ | |
9a6bb3f7 | 574 | && TREE_OPERAND (EXP, 0) != error_mark_node \ |
14a774a9 RK |
575 | && (TYPE_MODE (TREE_TYPE (EXP)) \ |
576 | == TYPE_MODE (TREE_TYPE (TREE_OPERAND (EXP, 0)))) \ | |
8df83eae RK |
577 | && (TYPE_UNSIGNED (TREE_TYPE (EXP)) \ |
578 | == TYPE_UNSIGNED (TREE_TYPE (TREE_OPERAND (EXP, 0))))) \ | |
713cc17b | 579 | (EXP) = TREE_OPERAND (EXP, 0) |
14a774a9 | 580 | |
03307888 JM |
581 | /* Like STRIP_NOPS, but don't alter the TREE_TYPE main variant either. */ |
582 | ||
583 | #define STRIP_MAIN_TYPE_NOPS(EXP) \ | |
584 | while ((TREE_CODE (EXP) == NOP_EXPR \ | |
585 | || TREE_CODE (EXP) == CONVERT_EXPR \ | |
586 | || TREE_CODE (EXP) == NON_LVALUE_EXPR) \ | |
587 | && TREE_OPERAND (EXP, 0) != error_mark_node \ | |
588 | && (TYPE_MAIN_VARIANT (TREE_TYPE (EXP)) \ | |
589 | == TYPE_MAIN_VARIANT (TREE_TYPE (TREE_OPERAND (EXP, 0))))) \ | |
590 | (EXP) = TREE_OPERAND (EXP, 0) | |
591 | ||
0fafb45e RS |
592 | /* Like STRIP_NOPS, but don't alter the TREE_TYPE either. */ |
593 | ||
594 | #define STRIP_TYPE_NOPS(EXP) \ | |
595 | while ((TREE_CODE (EXP) == NOP_EXPR \ | |
596 | || TREE_CODE (EXP) == CONVERT_EXPR \ | |
597 | || TREE_CODE (EXP) == NON_LVALUE_EXPR) \ | |
9a6bb3f7 | 598 | && TREE_OPERAND (EXP, 0) != error_mark_node \ |
0fafb45e RS |
599 | && (TREE_TYPE (EXP) \ |
600 | == TREE_TYPE (TREE_OPERAND (EXP, 0)))) \ | |
713cc17b | 601 | (EXP) = TREE_OPERAND (EXP, 0) |
87291138 | 602 | |
6de9cd9a DN |
603 | /* Remove unnecessary type conversions according to |
604 | tree_ssa_useless_type_conversion. */ | |
605 | ||
606 | #define STRIP_USELESS_TYPE_CONVERSION(EXP) \ | |
607 | while (tree_ssa_useless_type_conversion (EXP)) \ | |
608 | EXP = TREE_OPERAND (EXP, 0) | |
609 | ||
87291138 RK |
610 | /* Nonzero if TYPE represents an integral type. Note that we do not |
611 | include COMPLEX types here. */ | |
612 | ||
613 | #define INTEGRAL_TYPE_P(TYPE) \ | |
614 | (TREE_CODE (TYPE) == INTEGER_TYPE || TREE_CODE (TYPE) == ENUMERAL_TYPE \ | |
615 | || TREE_CODE (TYPE) == BOOLEAN_TYPE || TREE_CODE (TYPE) == CHAR_TYPE) | |
616 | ||
00229de4 RS |
617 | /* Nonzero if TYPE represents a scalar floating-point type. */ |
618 | ||
619 | #define SCALAR_FLOAT_TYPE_P(TYPE) (TREE_CODE (TYPE) == REAL_TYPE) | |
620 | ||
621 | /* Nonzero if TYPE represents a complex floating-point type. */ | |
622 | ||
623 | #define COMPLEX_FLOAT_TYPE_P(TYPE) \ | |
624 | (TREE_CODE (TYPE) == COMPLEX_TYPE \ | |
625 | && TREE_CODE (TREE_TYPE (TYPE)) == REAL_TYPE) | |
626 | ||
87291138 RK |
627 | /* Nonzero if TYPE represents a floating-point type, including complex |
628 | floating-point types. */ | |
629 | ||
630 | #define FLOAT_TYPE_P(TYPE) \ | |
00229de4 | 631 | (SCALAR_FLOAT_TYPE_P (TYPE) || COMPLEX_FLOAT_TYPE_P (TYPE)) |
947765f9 | 632 | |
2ba84f36 | 633 | /* Nonzero if TYPE represents an aggregate (multi-component) type. */ |
947765f9 PB |
634 | |
635 | #define AGGREGATE_TYPE_P(TYPE) \ | |
636 | (TREE_CODE (TYPE) == ARRAY_TYPE || TREE_CODE (TYPE) == RECORD_TYPE \ | |
637 | || TREE_CODE (TYPE) == UNION_TYPE || TREE_CODE (TYPE) == QUAL_UNION_TYPE \ | |
638 | || TREE_CODE (TYPE) == SET_TYPE) | |
9e6cfc43 | 639 | |
66804d9e NS |
640 | /* Nonzero if TYPE represents a pointer or reference type. |
641 | (It should be renamed to INDIRECT_TYPE_P.) */ | |
9e6cfc43 JM |
642 | |
643 | #define POINTER_TYPE_P(TYPE) \ | |
644 | (TREE_CODE (TYPE) == POINTER_TYPE || TREE_CODE (TYPE) == REFERENCE_TYPE) | |
555f90c5 | 645 | |
d0f062fb NS |
646 | /* Nonzero if this type is a complete type. */ |
647 | #define COMPLETE_TYPE_P(NODE) (TYPE_SIZE (NODE) != NULL_TREE) | |
648 | ||
71653180 | 649 | /* Nonzero if this type is the (possibly qualified) void type. */ |
e7cd085f | 650 | #define VOID_TYPE_P(NODE) (TREE_CODE (NODE) == VOID_TYPE) |
71653180 | 651 | |
d0f062fb NS |
652 | /* Nonzero if this type is complete or is cv void. */ |
653 | #define COMPLETE_OR_VOID_TYPE_P(NODE) \ | |
c46080ab | 654 | (COMPLETE_TYPE_P (NODE) || VOID_TYPE_P (NODE)) |
d0f062fb NS |
655 | |
656 | /* Nonzero if this type is complete or is an array with unspecified bound. */ | |
657 | #define COMPLETE_OR_UNBOUND_ARRAY_TYPE_P(NODE) \ | |
713cc17b | 658 | (COMPLETE_TYPE_P (TREE_CODE (NODE) == ARRAY_TYPE ? TREE_TYPE (NODE) : (NODE))) |
d0f062fb | 659 | |
555f90c5 JM |
660 | /* Nonzero if TYPE represents a type. */ |
661 | ||
662 | #define TYPE_P(TYPE) (TREE_CODE_CLASS (TREE_CODE (TYPE)) == 't') | |
8da1b058 RS |
663 | \f |
664 | /* Define many boolean fields that all tree nodes have. */ | |
665 | ||
666 | /* In VAR_DECL nodes, nonzero means address of this is needed. | |
667 | So it cannot be in a register. | |
668 | In a FUNCTION_DECL, nonzero means its address is needed. | |
669 | So it must be compiled even if it is an inline function. | |
1febe16b RK |
670 | In a FIELD_DECL node, it means that the programmer is permitted to |
671 | construct the address of this field. This is used for aliasing | |
672 | purposes: see record_component_aliases. | |
8da1b058 | 673 | In CONSTRUCTOR nodes, it means object constructed must be in memory. |
41077ce4 | 674 | In LABEL_DECL nodes, it means a goto for this label has been seen |
8da1b058 RS |
675 | from a place outside all binding contours that restore stack levels. |
676 | In ..._TYPE nodes, it means that objects of this type must | |
677 | be fully addressable. This means that pieces of this | |
678 | object cannot go into register parameters, for example. | |
679 | In IDENTIFIER_NODEs, this means that some extern decl for this name | |
680 | had its address taken. That matters for inline functions. */ | |
681 | #define TREE_ADDRESSABLE(NODE) ((NODE)->common.addressable_flag) | |
682 | ||
6de9cd9a DN |
683 | #define CALL_EXPR_TAILCALL(NODE) (CALL_EXPR_CHECK(NODE)->common.addressable_flag) |
684 | ||
8da1b058 | 685 | /* In a VAR_DECL, nonzero means allocate static storage. |
9f86614b | 686 | In a FUNCTION_DECL, nonzero if function has been defined. |
22421b79 RK |
687 | In a CONSTRUCTOR, nonzero means allocate static storage. |
688 | ||
689 | ??? This is also used in lots of other nodes in unclear ways which | |
690 | should be cleaned up some day. */ | |
8da1b058 RS |
691 | #define TREE_STATIC(NODE) ((NODE)->common.static_flag) |
692 | ||
659e5a7a JM |
693 | /* In a TARGET_EXPR, WITH_CLEANUP_EXPR, CLEANUP_STMT, or element of a |
694 | block's cleanup list, means that the pertinent cleanup should only be | |
695 | executed if an exception is thrown, not on normal exit of its scope. */ | |
696 | #define CLEANUP_EH_ONLY(NODE) ((NODE)->common.static_flag) | |
697 | ||
6de9cd9a DN |
698 | /* In an expr node (usually a conversion) this means the node was made |
699 | implicitly and should not lead to any sort of warning. */ | |
700 | #define TREE_NO_WARNING(NODE) ((NODE)->common.nowarning_flag) | |
8da1b058 RS |
701 | |
702 | /* Nonzero for a TREE_LIST or TREE_VEC node means that the derivation | |
703 | chain is via a `virtual' declaration. */ | |
22421b79 RK |
704 | #define TREE_VIA_VIRTUAL(NODE) \ |
705 | (TREE_CHECK2 (NODE, TREE_LIST, TREE_VEC)->common.static_flag) | |
8da1b058 | 706 | |
69ef87e2 AH |
707 | /* In an INTEGER_CST, REAL_CST, COMPLEX_CST, or VECTOR_CST this means |
708 | there was an overflow in folding. This is distinct from | |
709 | TREE_OVERFLOW because ANSI C requires a diagnostic when overflows | |
710 | occur in constant expressions. */ | |
22421b79 | 711 | #define TREE_CONSTANT_OVERFLOW(NODE) (CST_CHECK (NODE)->common.static_flag) |
261450e8 | 712 | |
d3568529 JM |
713 | /* In an IDENTIFIER_NODE, this means that assemble_name was called with |
714 | this string as an argument. */ | |
c46080ab | 715 | #define TREE_SYMBOL_REFERENCED(NODE) \ |
b9daac31 | 716 | (IDENTIFIER_NODE_CHECK (NODE)->common.static_flag) |
d3568529 | 717 | |
22421b79 RK |
718 | /* Nonzero in a pointer or reference type means the data pointed to |
719 | by this type can alias anything. */ | |
720 | #define TYPE_REF_CAN_ALIAS_ALL(NODE) \ | |
721 | (PTR_OR_REF_CHECK (NODE)->common.static_flag) | |
722 | ||
69ef87e2 AH |
723 | /* In an INTEGER_CST, REAL_CST, COMPLEX_CST, or VECTOR_CST, this means |
724 | there was an overflow in folding, and no warning has been issued | |
22421b79 RK |
725 | for this subexpression. TREE_OVERFLOW implies TREE_CONSTANT_OVERFLOW, |
726 | but not vice versa. | |
727 | ||
728 | ??? Apparently, lots of code assumes this is defined in all | |
729 | expressions. */ | |
261450e8 PE |
730 | #define TREE_OVERFLOW(NODE) ((NODE)->common.public_flag) |
731 | ||
8da1b058 RS |
732 | /* In a VAR_DECL or FUNCTION_DECL, |
733 | nonzero means name is to be accessible from outside this module. | |
4c521bad | 734 | In an IDENTIFIER_NODE, nonzero means an external declaration |
6dc42e49 | 735 | accessible from outside this module was previously seen |
8da1b058 RS |
736 | for this name in an inner scope. */ |
737 | #define TREE_PUBLIC(NODE) ((NODE)->common.public_flag) | |
738 | ||
4f976745 RK |
739 | /* In any expression, decl, or constant, nonzero means it has side effects or |
740 | reevaluation of the whole expression could produce a different value. | |
741 | This is set if any subexpression is a function call, a side effect or a | |
742 | reference to a volatile variable. In a ..._DECL, this is set only if the | |
743 | declaration said `volatile'. This will never be set for a constant. */ | |
744 | #define TREE_SIDE_EFFECTS(NODE) \ | |
745 | (NON_TYPE_CHECK (NODE)->common.side_effects_flag) | |
8da1b058 | 746 | |
6de9cd9a DN |
747 | /* In a LABEL_DECL, nonzero means this label had its address taken |
748 | and therefore can never be deleted and is a jump target for | |
749 | computed gotos. */ | |
750 | #define FORCED_LABEL(NODE) ((NODE)->common.side_effects_flag) | |
751 | ||
8da1b058 RS |
752 | /* Nonzero means this expression is volatile in the C sense: |
753 | its address should be of type `volatile WHATEVER *'. | |
754 | In other words, the declared item is volatile qualified. | |
755 | This is used in _DECL nodes and _REF nodes. | |
756 | ||
757 | In a ..._TYPE node, means this type is volatile-qualified. | |
758 | But use TYPE_VOLATILE instead of this macro when the node is a type, | |
759 | because eventually we may make that a different bit. | |
760 | ||
761 | If this bit is set in an expression, so is TREE_SIDE_EFFECTS. */ | |
762 | #define TREE_THIS_VOLATILE(NODE) ((NODE)->common.volatile_flag) | |
763 | ||
764 | /* In a VAR_DECL, PARM_DECL or FIELD_DECL, or any kind of ..._REF node, | |
4f976745 RK |
765 | nonzero means it may not be the lhs of an assignment. */ |
766 | #define TREE_READONLY(NODE) (NON_TYPE_CHECK (NODE)->common.readonly_flag) | |
8da1b058 | 767 | |
272d0bee | 768 | /* Nonzero if NODE is a _DECL with TREE_READONLY set. */ |
4f976745 | 769 | #define TREE_READONLY_DECL_P(NODE) (DECL_P (NODE) && TREE_READONLY (NODE)) |
588d3ade | 770 | |
4f976745 RK |
771 | /* Value of expression is constant. Always on in all ..._CST nodes. May |
772 | also appear in an expression or decl where the value is constant. */ | |
773 | #define TREE_CONSTANT(NODE) (NON_TYPE_CHECK (NODE)->common.constant_flag) | |
8da1b058 | 774 | |
a150de29 RK |
775 | /* In a decl (most significantly a FIELD_DECL), means an unsigned field. */ |
776 | #define DECL_UNSIGNED(NODE) (DECL_CHECK (NODE)->common.unsigned_flag) | |
777 | ||
778 | /* In a BIT_FIELD_REF, means the bitfield is to be interpreted as unsigned. */ | |
779 | #define BIT_FIELD_REF_UNSIGNED(NODE) \ | |
780 | (BIT_FIELD_REF_CHECK (NODE)->common.unsigned_flag) | |
8da1b058 | 781 | |
8df83eae RK |
782 | /* In integral and pointer types, means an unsigned type. */ |
783 | #define TYPE_UNSIGNED(NODE) (TYPE_CHECK (NODE)->common.unsigned_flag) | |
784 | ||
c46080ab | 785 | #define TYPE_TRAP_SIGNED(NODE) \ |
8df83eae | 786 | (flag_trapv && ! TYPE_UNSIGNED (NODE)) |
91ce572a | 787 | |
8da1b058 RS |
788 | /* Nonzero in a VAR_DECL means assembler code has been written. |
789 | Nonzero in a FUNCTION_DECL means that the function has been compiled. | |
790 | This is interesting in an inline function, since it might not need | |
791 | to be compiled separately. | |
3635a54b | 792 | Nonzero in a RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE or ENUMERAL_TYPE |
9f86614b | 793 | if the sdb debugging info for the type has been written. |
6de9cd9a DN |
794 | In a BLOCK node, nonzero if reorder_blocks has already seen this block. |
795 | In an SSA_NAME node, nonzero if the SSA_NAME occurs in an abnormal | |
796 | PHI node. */ | |
8da1b058 RS |
797 | #define TREE_ASM_WRITTEN(NODE) ((NODE)->common.asm_written_flag) |
798 | ||
799 | /* Nonzero in a _DECL if the name is used in its scope. | |
800 | Nonzero in an expr node means inhibit warning if value is unused. | |
801 | In IDENTIFIER_NODEs, this means that some extern decl for this name | |
802 | was used. */ | |
803 | #define TREE_USED(NODE) ((NODE)->common.used_flag) | |
804 | ||
12a22e76 JM |
805 | /* In a FUNCTION_DECL, nonzero means a call to the function cannot throw |
806 | an exception. In a CALL_EXPR, nonzero means the call cannot throw. */ | |
807 | #define TREE_NOTHROW(NODE) ((NODE)->common.nothrow_flag) | |
c3d32120 | 808 | |
4977bab6 ZW |
809 | /* In a CALL_EXPR, means that the address of the return slot is part of the |
810 | argument list. */ | |
811 | #define CALL_EXPR_HAS_RETURN_SLOT_ADDR(NODE) ((NODE)->common.private_flag) | |
812 | ||
dd292d0a MM |
813 | /* In a CALL_EXPR, means that the call is the jump from a thunk to the |
814 | thunked-to function. */ | |
815 | #define CALL_FROM_THUNK_P(NODE) ((NODE)->common.protected_flag) | |
816 | ||
c3d32120 RK |
817 | /* In a type, nonzero means that all objects of the type are guaranteed by the |
818 | language or front-end to be properly aligned, so we can indicate that a MEM | |
819 | of this type is aligned at least to the alignment of the type, even if it | |
820 | doesn't appear that it is. We see this, for example, in object-oriented | |
821 | languages where a tag field may show this is an object of a more-aligned | |
6de9cd9a DN |
822 | variant of the more generic type. |
823 | ||
824 | In an SSA_NAME node, nonzero if the SSA_NAME node is on the SSA_NAME | |
825 | freelist. */ | |
c3d32120 | 826 | #define TYPE_ALIGN_OK(NODE) (TYPE_CHECK (NODE)->common.nothrow_flag) |
8da1b058 | 827 | |
9f86614b | 828 | /* Used in classes in C++. */ |
8da1b058 | 829 | #define TREE_PRIVATE(NODE) ((NODE)->common.private_flag) |
9f86614b RS |
830 | /* Used in classes in C++. |
831 | In a BLOCK node, this is BLOCK_HANDLER_BLOCK. */ | |
8da1b058 RS |
832 | #define TREE_PROTECTED(NODE) ((NODE)->common.protected_flag) |
833 | ||
e0a2f705 | 834 | /* Nonzero in an IDENTIFIER_NODE if the use of the name is defined as a |
e23bd218 IR |
835 | deprecated feature by __attribute__((deprecated)). */ |
836 | #define TREE_DEPRECATED(NODE) ((NODE)->common.deprecated_flag) | |
837 | ||
6de9cd9a DN |
838 | /* Value of expression is function invariant. A strict subset of |
839 | TREE_CONSTANT, such an expression is constant over any one function | |
840 | invocation, though not across different invocations. May appear in | |
841 | any expression node. */ | |
842 | #define TREE_INVARIANT(NODE) ((NODE)->common.invariant_flag) | |
843 | ||
9f86614b | 844 | /* These flags are available for each language front end to use internally. */ |
8da1b058 RS |
845 | #define TREE_LANG_FLAG_0(NODE) ((NODE)->common.lang_flag_0) |
846 | #define TREE_LANG_FLAG_1(NODE) ((NODE)->common.lang_flag_1) | |
847 | #define TREE_LANG_FLAG_2(NODE) ((NODE)->common.lang_flag_2) | |
848 | #define TREE_LANG_FLAG_3(NODE) ((NODE)->common.lang_flag_3) | |
849 | #define TREE_LANG_FLAG_4(NODE) ((NODE)->common.lang_flag_4) | |
850 | #define TREE_LANG_FLAG_5(NODE) ((NODE)->common.lang_flag_5) | |
851 | #define TREE_LANG_FLAG_6(NODE) ((NODE)->common.lang_flag_6) | |
852 | \f | |
853 | /* Define additional fields and accessors for nodes representing constants. */ | |
854 | ||
e5d70561 RK |
855 | /* In an INTEGER_CST node. These two together make a 2-word integer. |
856 | If the data type is signed, the value is sign-extended to 2 words | |
8da1b058 | 857 | even though not all of them may really be in use. |
e5d70561 | 858 | In an unsigned constant shorter than 2 words, the extra bits are 0. */ |
2afaa41c GM |
859 | #define TREE_INT_CST(NODE) (INTEGER_CST_CHECK (NODE)->int_cst.int_cst) |
860 | #define TREE_INT_CST_LOW(NODE) (TREE_INT_CST (NODE).low) | |
861 | #define TREE_INT_CST_HIGH(NODE) (TREE_INT_CST (NODE).high) | |
8da1b058 | 862 | |
b9daac31 GS |
863 | #define INT_CST_LT(A, B) \ |
864 | (TREE_INT_CST_HIGH (A) < TREE_INT_CST_HIGH (B) \ | |
865 | || (TREE_INT_CST_HIGH (A) == TREE_INT_CST_HIGH (B) \ | |
c46080ab | 866 | && TREE_INT_CST_LOW (A) < TREE_INT_CST_LOW (B))) |
8da1b058 | 867 | |
b9daac31 GS |
868 | #define INT_CST_LT_UNSIGNED(A, B) \ |
869 | (((unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (A) \ | |
870 | < (unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (B)) \ | |
871 | || (((unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (A) \ | |
41077ce4 | 872 | == (unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (B)) \ |
c46080ab | 873 | && TREE_INT_CST_LOW (A) < TREE_INT_CST_LOW (B))) |
46c5ad27 | 874 | |
e2500fed | 875 | struct tree_int_cst GTY(()) |
8da1b058 | 876 | { |
2bf105ab | 877 | struct tree_common common; |
2afaa41c GM |
878 | /* A sub-struct is necessary here because the function `const_hash' |
879 | wants to scan both words as a unit and taking the address of the | |
880 | sub-struct yields the properly inclusive bounded pointer. */ | |
e2500fed | 881 | struct tree_int_cst_lowhi { |
2afaa41c GM |
882 | unsigned HOST_WIDE_INT low; |
883 | HOST_WIDE_INT high; | |
884 | } int_cst; | |
8da1b058 RS |
885 | }; |
886 | ||
0ee6fdb5 | 887 | /* In a REAL_CST node. struct real_value is an opaque entity, with |
11ad4784 ZW |
888 | manipulators defined in real.h. We don't want tree.h depending on |
889 | real.h and transitively on tm.h. */ | |
0ee6fdb5 | 890 | struct real_value; |
c46080ab | 891 | |
11ad4784 ZW |
892 | #define TREE_REAL_CST_PTR(NODE) (REAL_CST_CHECK (NODE)->real_cst.real_cst_ptr) |
893 | #define TREE_REAL_CST(NODE) (*TREE_REAL_CST_PTR (NODE)) | |
8da1b058 | 894 | |
e2500fed | 895 | struct tree_real_cst GTY(()) |
8da1b058 | 896 | { |
2bf105ab | 897 | struct tree_common common; |
0ee6fdb5 | 898 | struct real_value * real_cst_ptr; |
8da1b058 RS |
899 | }; |
900 | ||
901 | /* In a STRING_CST */ | |
12b195d9 | 902 | #define TREE_STRING_LENGTH(NODE) (STRING_CST_CHECK (NODE)->string.length) |
839ee4bc | 903 | #define TREE_STRING_POINTER(NODE) (STRING_CST_CHECK (NODE)->string.pointer) |
8da1b058 | 904 | |
e2500fed | 905 | struct tree_string GTY(()) |
8da1b058 | 906 | { |
2bf105ab | 907 | struct tree_common common; |
8da1b058 | 908 | int length; |
839ee4bc | 909 | const char *pointer; |
8da1b058 RS |
910 | }; |
911 | ||
912 | /* In a COMPLEX_CST node. */ | |
12b195d9 ML |
913 | #define TREE_REALPART(NODE) (COMPLEX_CST_CHECK (NODE)->complex.real) |
914 | #define TREE_IMAGPART(NODE) (COMPLEX_CST_CHECK (NODE)->complex.imag) | |
8da1b058 | 915 | |
e2500fed | 916 | struct tree_complex GTY(()) |
8da1b058 | 917 | { |
2bf105ab | 918 | struct tree_common common; |
2f78c311 ZW |
919 | tree real; |
920 | tree imag; | |
8da1b058 | 921 | }; |
69ef87e2 AH |
922 | |
923 | /* In a VECTOR_CST node. */ | |
924 | #define TREE_VECTOR_CST_ELTS(NODE) (VECTOR_CST_CHECK (NODE)->vector.elements) | |
925 | ||
e2500fed | 926 | struct tree_vector GTY(()) |
69ef87e2 AH |
927 | { |
928 | struct tree_common common; | |
69ef87e2 AH |
929 | tree elements; |
930 | }; | |
8da1b058 | 931 | \f |
4f4e53dd | 932 | #include "symtab.h" |
2a967f3d | 933 | |
8da1b058 RS |
934 | /* Define fields and accessors for some special-purpose tree nodes. */ |
935 | ||
2a967f3d | 936 | #define IDENTIFIER_LENGTH(NODE) \ |
c46080ab | 937 | (IDENTIFIER_NODE_CHECK (NODE)->identifier.id.len) |
2a967f3d | 938 | #define IDENTIFIER_POINTER(NODE) \ |
b9daac31 | 939 | ((const char *) IDENTIFIER_NODE_CHECK (NODE)->identifier.id.str) |
5e0c54e5 GDR |
940 | #define IDENTIFIER_HASH_VALUE(NODE) \ |
941 | (IDENTIFIER_NODE_CHECK (NODE)->identifier.id.hash_value) | |
2a967f3d NB |
942 | |
943 | /* Translate a hash table identifier pointer to a tree_identifier | |
944 | pointer, and vice versa. */ | |
945 | ||
946 | #define HT_IDENT_TO_GCC_IDENT(NODE) \ | |
c46080ab RK |
947 | ((tree) ((char *) (NODE) - sizeof (struct tree_common))) |
948 | #define GCC_IDENT_TO_HT_IDENT(NODE) (&((struct tree_identifier *) (NODE))->id) | |
8da1b058 | 949 | |
e2500fed | 950 | struct tree_identifier GTY(()) |
8da1b058 | 951 | { |
2bf105ab | 952 | struct tree_common common; |
2a967f3d | 953 | struct ht_identifier id; |
8da1b058 RS |
954 | }; |
955 | ||
956 | /* In a TREE_LIST node. */ | |
12b195d9 ML |
957 | #define TREE_PURPOSE(NODE) (TREE_LIST_CHECK (NODE)->list.purpose) |
958 | #define TREE_VALUE(NODE) (TREE_LIST_CHECK (NODE)->list.value) | |
8da1b058 | 959 | |
e2500fed | 960 | struct tree_list GTY(()) |
8da1b058 | 961 | { |
2bf105ab | 962 | struct tree_common common; |
2f78c311 ZW |
963 | tree purpose; |
964 | tree value; | |
8da1b058 RS |
965 | }; |
966 | ||
967 | /* In a TREE_VEC node. */ | |
12b195d9 | 968 | #define TREE_VEC_LENGTH(NODE) (TREE_VEC_CHECK (NODE)->vec.length) |
c46080ab RK |
969 | #define TREE_VEC_END(NODE) \ |
970 | ((void) TREE_VEC_CHECK (NODE), &((NODE)->vec.a[(NODE)->vec.length])) | |
8da1b058 | 971 | |
fa7b533b ZW |
972 | #define TREE_VEC_ELT(NODE,I) TREE_VEC_ELT_CHECK (NODE, I) |
973 | ||
e2500fed | 974 | struct tree_vec GTY(()) |
8da1b058 | 975 | { |
2bf105ab | 976 | struct tree_common common; |
8da1b058 | 977 | int length; |
e2500fed | 978 | tree GTY ((length ("TREE_VEC_LENGTH ((tree)&%h)"))) a[1]; |
8da1b058 RS |
979 | }; |
980 | ||
981 | /* Define fields and accessors for some nodes that represent expressions. */ | |
982 | ||
1ea7e6ad | 983 | /* Nonzero if NODE is an empty statement (NOP_EXPR <0>). */ |
6de9cd9a DN |
984 | #define IS_EMPTY_STMT(NODE) (TREE_CODE (NODE) == NOP_EXPR \ |
985 | && VOID_TYPE_P (TREE_TYPE (NODE)) \ | |
986 | && integer_zerop (TREE_OPERAND (NODE, 0))) | |
987 | ||
8da1b058 | 988 | /* In a SAVE_EXPR node. */ |
06790e5f ZW |
989 | #define SAVE_EXPR_CONTEXT(NODE) TREE_OPERAND_CHECK_CODE (NODE, SAVE_EXPR, 1) |
990 | #define SAVE_EXPR_RTL(NODE) TREE_RTL_OPERAND_CHECK (NODE, SAVE_EXPR, 2) | |
991 | ||
8df83eae RK |
992 | #define SAVE_EXPR_NOPLACEHOLDER(NODE) \ |
993 | (SAVE_EXPR_CHECK (NODE)->common.unsigned_flag) | |
994 | ||
d26f8097 MM |
995 | /* Nonzero if the SAVE_EXPRs value should be kept, even if it occurs |
996 | both in normal code and in a handler. (Normally, in a handler, all | |
d3974db0 | 997 | SAVE_EXPRs are unsaved, meaning that their values are |
d26f8097 | 998 | recalculated.) */ |
c46080ab | 999 | #define SAVE_EXPR_PERSISTENT_P(NODE) TREE_ASM_WRITTEN (SAVE_EXPR_CHECK (NODE)) |
8da1b058 RS |
1000 | |
1001 | /* In a RTL_EXPR node. */ | |
06790e5f ZW |
1002 | #define RTL_EXPR_SEQUENCE(NODE) TREE_RTL_OPERAND_CHECK (NODE, RTL_EXPR, 0) |
1003 | #define RTL_EXPR_RTL(NODE) TREE_RTL_OPERAND_CHECK (NODE, RTL_EXPR, 1) | |
0fab64a3 | 1004 | #define RTL_EXPR_ALT_RTL(NODE) TREE_RTL_OPERAND_CHECK (NODE, RTL_EXPR, 2) |
8da1b058 | 1005 | |
6ad7895a APB |
1006 | /* In a WITH_CLEANUP_EXPR node. */ |
1007 | #define WITH_CLEANUP_EXPR_RTL(NODE) \ | |
06790e5f | 1008 | TREE_RTL_OPERAND_CHECK (NODE, WITH_CLEANUP_EXPR, 2) |
6ad7895a | 1009 | |
8da1b058 | 1010 | /* In a CONSTRUCTOR node. */ |
0864034e | 1011 | #define CONSTRUCTOR_ELTS(NODE) TREE_OPERAND_CHECK_CODE (NODE, CONSTRUCTOR, 0) |
8da1b058 | 1012 | |
61131fa2 | 1013 | /* In ordinary expression nodes. */ |
06790e5f | 1014 | #define TREE_OPERAND(NODE, I) TREE_OPERAND_CHECK (NODE, I) |
12b195d9 | 1015 | #define TREE_COMPLEXITY(NODE) (EXPR_CHECK (NODE)->exp.complexity) |
61131fa2 | 1016 | |
40edd0bd | 1017 | /* In a LABELED_BLOCK_EXPR node. */ |
c46080ab | 1018 | #define LABELED_BLOCK_LABEL(NODE) \ |
06790e5f | 1019 | TREE_OPERAND_CHECK_CODE (NODE, LABELED_BLOCK_EXPR, 0) |
c46080ab | 1020 | #define LABELED_BLOCK_BODY(NODE) \ |
06790e5f | 1021 | TREE_OPERAND_CHECK_CODE (NODE, LABELED_BLOCK_EXPR, 1) |
40edd0bd | 1022 | |
e0a2f705 | 1023 | /* In an EXIT_BLOCK_EXPR node. */ |
c46080ab | 1024 | #define EXIT_BLOCK_LABELED_BLOCK(NODE) \ |
06790e5f ZW |
1025 | TREE_OPERAND_CHECK_CODE (NODE, EXIT_BLOCK_EXPR, 0) |
1026 | #define EXIT_BLOCK_RETURN(NODE) TREE_OPERAND_CHECK_CODE (NODE, EXIT_BLOCK_EXPR, 1) | |
40edd0bd APB |
1027 | |
1028 | /* In a LOOP_EXPR node. */ | |
06790e5f | 1029 | #define LOOP_EXPR_BODY(NODE) TREE_OPERAND_CHECK_CODE (NODE, LOOP_EXPR, 0) |
40edd0bd | 1030 | |
6de9cd9a DN |
1031 | /* The source location of this expression. Non-tree_exp nodes such as |
1032 | decls and constants can be shared among multiple locations, so | |
1033 | return nothing. */ | |
1034 | #define EXPR_LOCUS(NODE) \ | |
1035 | (IS_EXPR_CODE_CLASS (TREE_CODE_CLASS (TREE_CODE (NODE))) \ | |
1036 | ? (NODE)->exp.locus \ | |
1037 | : (location_t *)NULL) | |
1038 | #define SET_EXPR_LOCUS(NODE, FROM) \ | |
1039 | (EXPR_CHECK (NODE)->exp.locus = (FROM)) | |
1040 | #define EXPR_FILENAME(NODE) \ | |
1041 | (EXPR_CHECK (NODE)->exp.locus->file) | |
1042 | #define EXPR_LINENO(NODE) \ | |
1043 | (EXPR_CHECK (NODE)->exp.locus->line) | |
1044 | #ifdef USE_MAPPED_LOCATION | |
1045 | #define EXPR_LOCATION(NODE) \ | |
1046 | (IS_EXPR_CODE_CLASS (TREE_CODE_CLASS (TREE_CODE (NODE))) \ | |
1047 | ? (NODE)->exp.locus \ | |
1048 | : UNKNOWN_LOCATION) | |
1049 | #define EXPR_HAS_LOCATION(NODE) (EXPR_LOCATION (NODE) != UNKNOWN_LOCATION) | |
1050 | #else | |
1051 | #define EXPR_LOCATION(NODE) (*EXPR_LOCUS (NODE)) | |
1052 | #define EXPR_HAS_LOCATION(NODE) (EXPR_LOCUS (NODE) != NULL) | |
1053 | #endif | |
bf1e5319 | 1054 | |
6f30f1f1 | 1055 | /* In a TARGET_EXPR node. */ |
06790e5f ZW |
1056 | #define TARGET_EXPR_SLOT(NODE) TREE_OPERAND_CHECK_CODE (NODE, TARGET_EXPR, 0) |
1057 | #define TARGET_EXPR_INITIAL(NODE) TREE_OPERAND_CHECK_CODE (NODE, TARGET_EXPR, 1) | |
1058 | #define TARGET_EXPR_CLEANUP(NODE) TREE_OPERAND_CHECK_CODE (NODE, TARGET_EXPR, 2) | |
6f30f1f1 | 1059 | |
6de9cd9a DN |
1060 | #define EXIT_EXPR_COND(NODE) TREE_OPERAND (EXIT_EXPR_CHECK (NODE), 0) |
1061 | ||
1062 | /* SWITCH_EXPR accessors. These give access to the condition, body and | |
1063 | original condition type (before any compiler conversions) | |
1064 | of the switch statement, respectively. */ | |
1065 | #define SWITCH_COND(NODE) TREE_OPERAND ((NODE), 0) | |
1066 | #define SWITCH_BODY(NODE) TREE_OPERAND ((NODE), 1) | |
1067 | #define SWITCH_LABELS(NODE) TREE_OPERAND ((NODE), 2) | |
1068 | ||
8c161995 | 1069 | /* CASE_LABEL_EXPR accessors. These give access to the high and low values |
6de9cd9a DN |
1070 | of a case label, respectively. */ |
1071 | #define CASE_LOW(NODE) TREE_OPERAND ((NODE), 0) | |
1072 | #define CASE_HIGH(NODE) TREE_OPERAND ((NODE), 1) | |
1073 | #define CASE_LABEL(NODE) TREE_OPERAND ((NODE), 2) | |
1074 | ||
1075 | /* The operands of a BIND_EXPR. */ | |
1076 | #define BIND_EXPR_VARS(NODE) (TREE_OPERAND (BIND_EXPR_CHECK (NODE), 0)) | |
1077 | #define BIND_EXPR_BODY(NODE) (TREE_OPERAND (BIND_EXPR_CHECK (NODE), 1)) | |
1078 | #define BIND_EXPR_BLOCK(NODE) (TREE_OPERAND (BIND_EXPR_CHECK (NODE), 2)) | |
1079 | ||
1080 | /* GOTO_EXPR accessor. This gives access to the label associated with | |
1081 | a goto statement. */ | |
1082 | #define GOTO_DESTINATION(NODE) TREE_OPERAND ((NODE), 0) | |
1083 | ||
e130a54b | 1084 | /* ASM_EXPR accessors. ASM_STRING returns a STRING_CST for the |
6de9cd9a DN |
1085 | instruction (e.g., "mov x, y"). ASM_OUTPUTS, ASM_INPUTS, and |
1086 | ASM_CLOBBERS represent the outputs, inputs, and clobbers for the | |
1087 | statement. */ | |
1088 | #define ASM_STRING(NODE) TREE_OPERAND ((NODE), 0) | |
1089 | #define ASM_OUTPUTS(NODE) TREE_OPERAND ((NODE), 1) | |
1090 | #define ASM_INPUTS(NODE) TREE_OPERAND ((NODE), 2) | |
1091 | #define ASM_CLOBBERS(NODE) TREE_OPERAND ((NODE), 3) | |
1092 | /* Nonzero if we want to create an ASM_INPUT instead of an | |
1093 | ASM_OPERAND with no operands. */ | |
1094 | #define ASM_INPUT_P(NODE) (TREE_STATIC (NODE)) | |
1095 | #define ASM_VOLATILE_P(NODE) (TREE_PUBLIC (NODE)) | |
1096 | ||
1097 | /* COND_EXPR accessors. */ | |
1098 | #define COND_EXPR_COND(NODE) (TREE_OPERAND (COND_EXPR_CHECK (NODE), 0)) | |
1099 | #define COND_EXPR_THEN(NODE) (TREE_OPERAND (COND_EXPR_CHECK (NODE), 1)) | |
1100 | #define COND_EXPR_ELSE(NODE) (TREE_OPERAND (COND_EXPR_CHECK (NODE), 2)) | |
1101 | ||
1102 | /* LABEL_EXPR accessor. This gives access to the label associated with | |
1103 | the given label expression. */ | |
1104 | #define LABEL_EXPR_LABEL(NODE) TREE_OPERAND (LABEL_EXPR_CHECK (NODE), 0) | |
1105 | ||
1106 | /* VDEF_EXPR accessors are specified in tree-flow.h, along with the other | |
1107 | accessors for SSA operands. */ | |
1108 | ||
1109 | /* CATCH_EXPR accessors. */ | |
1110 | #define CATCH_TYPES(NODE) TREE_OPERAND (CATCH_EXPR_CHECK (NODE), 0) | |
1111 | #define CATCH_BODY(NODE) TREE_OPERAND (CATCH_EXPR_CHECK (NODE), 1) | |
1112 | ||
1113 | /* EH_FILTER_EXPR accessors. */ | |
1114 | #define EH_FILTER_TYPES(NODE) TREE_OPERAND (EH_FILTER_EXPR_CHECK (NODE), 0) | |
1115 | #define EH_FILTER_FAILURE(NODE) TREE_OPERAND (EH_FILTER_EXPR_CHECK (NODE), 1) | |
1116 | #define EH_FILTER_MUST_NOT_THROW(NODE) TREE_STATIC (EH_FILTER_EXPR_CHECK (NODE)) | |
1117 | ||
e2500fed | 1118 | struct tree_exp GTY(()) |
61131fa2 | 1119 | { |
2bf105ab | 1120 | struct tree_common common; |
6de9cd9a | 1121 | location_t *locus; |
61131fa2 | 1122 | int complexity; |
6de9cd9a | 1123 | tree block; |
46c5ad27 AJ |
1124 | tree GTY ((special ("tree_exp"), |
1125 | desc ("TREE_CODE ((tree) &%0)"))) | |
e2500fed | 1126 | operands[1]; |
61131fa2 RS |
1127 | }; |
1128 | \f | |
6de9cd9a DN |
1129 | /* SSA_NAME accessors. */ |
1130 | ||
1131 | /* Returns the variable being referenced. Once released, this is the | |
1132 | only field that can be relied upon. */ | |
1133 | #define SSA_NAME_VAR(NODE) SSA_NAME_CHECK (NODE)->ssa_name.var | |
1134 | ||
1135 | /* Returns the statement which defines this reference. Note that | |
1136 | we use the same field when chaining SSA_NAME nodes together on | |
1137 | the SSA_NAME freelist. */ | |
1138 | #define SSA_NAME_DEF_STMT(NODE) SSA_NAME_CHECK (NODE)->common.chain | |
1139 | ||
1140 | /* Returns the SSA version number of this SSA name. Note that in | |
1141 | tree SSA, version numbers are not per variable and may be recycled. */ | |
1142 | #define SSA_NAME_VERSION(NODE) SSA_NAME_CHECK (NODE)->ssa_name.version | |
1143 | ||
1144 | /* Nonzero if this SSA name occurs in an abnormal PHI. SSA_NAMES are | |
1145 | never output, so we can safely use the ASM_WRITTEN_FLAG for this | |
1146 | status bit. */ | |
1147 | #define SSA_NAME_OCCURS_IN_ABNORMAL_PHI(NODE) \ | |
1148 | SSA_NAME_CHECK (NODE)->common.asm_written_flag | |
1149 | ||
313679b0 | 1150 | /* Nonzero if this SSA_NAME expression is currently on the free list of |
6de9cd9a DN |
1151 | SSA_NAMES. Using NOTHROW_FLAG seems reasonably safe since throwing |
1152 | has no meaning for an SSA_NAME. */ | |
1153 | #define SSA_NAME_IN_FREE_LIST(NODE) \ | |
1154 | SSA_NAME_CHECK (NODE)->common.nothrow_flag | |
1155 | ||
313679b0 DN |
1156 | /* Attributes for SSA_NAMEs for pointer-type variables. */ |
1157 | #define SSA_NAME_PTR_INFO(N) \ | |
1158 | SSA_NAME_CHECK (N)->ssa_name.ptr_info | |
1159 | ||
7e6eb623 DB |
1160 | /* Get the value of this SSA_NAME, if available. */ |
1161 | #define SSA_NAME_VALUE(N) \ | |
1162 | SSA_NAME_CHECK (N)->ssa_name.value_handle | |
1163 | ||
313679b0 DN |
1164 | #ifndef GCC_BITMAP_H |
1165 | struct bitmap_head_def; | |
1166 | #endif | |
1167 | ||
1168 | /* Aliasing information for SSA_NAMEs representing pointer variables. */ | |
1169 | struct ptr_info_def GTY(()) | |
1170 | { | |
1171 | /* Nonzero if points-to analysis couldn't determine where this pointer | |
1172 | is pointing to. */ | |
1173 | unsigned int pt_anything : 1; | |
1174 | ||
1175 | /* Nonzero if this pointer is the result of a call to malloc. */ | |
1176 | unsigned int pt_malloc : 1; | |
1177 | ||
1178 | /* Nonzero if the value of this pointer escapes the current function. */ | |
1179 | unsigned int value_escapes_p : 1; | |
1180 | ||
1181 | /* Set of variables that this pointer may point to. */ | |
1182 | struct bitmap_head_def *pt_vars; | |
1183 | ||
1184 | /* If this pointer has been dereferenced, and points-to information is | |
1185 | more precise than type-based aliasing, indirect references to this | |
1186 | pointer will be represented by this memory tag, instead of the type | |
1187 | tag computed by TBAA. */ | |
1188 | tree name_mem_tag; | |
1189 | }; | |
1190 | ||
6de9cd9a DN |
1191 | struct tree_ssa_name GTY(()) |
1192 | { | |
1193 | struct tree_common common; | |
1194 | ||
1195 | /* _DECL wrapped by this SSA name. */ | |
1196 | tree var; | |
1197 | ||
1198 | /* SSA version number. */ | |
1199 | unsigned int version; | |
313679b0 DN |
1200 | |
1201 | /* Pointer attributes used for alias analysis. */ | |
1202 | struct ptr_info_def *ptr_info; | |
7e6eb623 DB |
1203 | |
1204 | /* Value for SSA name used by GVN. */ | |
1205 | tree GTY((skip)) value_handle; | |
6de9cd9a DN |
1206 | }; |
1207 | \f | |
1208 | /* In a PHI_NODE node. */ | |
1209 | #define PHI_RESULT(NODE) PHI_NODE_CHECK (NODE)->phi.result | |
1210 | ||
17192884 SB |
1211 | /* PHI_NODEs for each basic block are chained together in a single linked |
1212 | list. The head of the list is linked from the block annotation, and | |
1213 | the link to the next PHI is in PHI_CHAIN. */ | |
1214 | #define PHI_CHAIN(NODE) TREE_CHAIN (PHI_NODE_CHECK (NODE)) | |
1215 | ||
6de9cd9a DN |
1216 | /* Nonzero if the PHI node was rewritten by a previous pass through the |
1217 | SSA renamer. */ | |
1218 | #define PHI_REWRITTEN(NODE) PHI_NODE_CHECK (NODE)->phi.rewritten | |
1219 | #define PHI_NUM_ARGS(NODE) PHI_NODE_CHECK (NODE)->phi.num_args | |
1220 | #define PHI_ARG_CAPACITY(NODE) PHI_NODE_CHECK (NODE)->phi.capacity | |
1221 | #define PHI_ARG_ELT(NODE, I) PHI_NODE_ELT_CHECK (NODE, I) | |
1222 | #define PHI_ARG_EDGE(NODE, I) PHI_NODE_ELT_CHECK (NODE, I).e | |
1223 | #define PHI_ARG_DEF(NODE, I) PHI_NODE_ELT_CHECK (NODE, I).def | |
dd747311 | 1224 | #define PHI_ARG_NONZERO(NODE, I) PHI_NODE_ELT_CHECK (NODE, I).nonzero |
6de9cd9a DN |
1225 | |
1226 | struct edge_def; | |
1227 | ||
1228 | struct phi_arg_d GTY(()) | |
1229 | { | |
1230 | tree def; | |
1231 | struct edge_def * GTY((skip (""))) e; | |
dd747311 | 1232 | bool nonzero; |
6de9cd9a DN |
1233 | }; |
1234 | ||
1235 | struct tree_phi_node GTY(()) | |
1236 | { | |
1237 | struct tree_common common; | |
1238 | tree result; | |
1239 | int num_args; | |
1240 | int capacity; | |
1241 | ||
1242 | /* Nonzero if the PHI node was rewritten by a previous pass through the | |
1243 | SSA renamer. */ | |
1244 | int rewritten; | |
1245 | ||
1246 | struct phi_arg_d GTY ((length ("((tree)&%h)->phi.capacity"))) a[1]; | |
1247 | }; | |
1248 | \f | |
1249 | ||
1250 | struct varray_head_tag; | |
1251 | ||
8da1b058 | 1252 | /* In a BLOCK node. */ |
12b195d9 | 1253 | #define BLOCK_VARS(NODE) (BLOCK_CHECK (NODE)->block.vars) |
12b195d9 ML |
1254 | #define BLOCK_SUBBLOCKS(NODE) (BLOCK_CHECK (NODE)->block.subblocks) |
1255 | #define BLOCK_SUPERCONTEXT(NODE) (BLOCK_CHECK (NODE)->block.supercontext) | |
8da1b058 RS |
1256 | /* Note: when changing this, make sure to find the places |
1257 | that use chainon or nreverse. */ | |
a901fa64 | 1258 | #define BLOCK_CHAIN(NODE) TREE_CHAIN (BLOCK_CHECK (NODE)) |
12b195d9 ML |
1259 | #define BLOCK_ABSTRACT_ORIGIN(NODE) (BLOCK_CHECK (NODE)->block.abstract_origin) |
1260 | #define BLOCK_ABSTRACT(NODE) (BLOCK_CHECK (NODE)->block.abstract_flag) | |
8da1b058 RS |
1261 | |
1262 | /* Nonzero means that this block is prepared to handle exceptions | |
1263 | listed in the BLOCK_VARS slot. */ | |
c46080ab RK |
1264 | #define BLOCK_HANDLER_BLOCK(NODE) \ |
1265 | (BLOCK_CHECK (NODE)->block.handler_block_flag) | |
8da1b058 | 1266 | |
18c038b9 MM |
1267 | /* An index number for this block. These values are not guaranteed to |
1268 | be unique across functions -- whether or not they are depends on | |
1269 | the debugging output format in use. */ | |
1270 | #define BLOCK_NUMBER(NODE) (BLOCK_CHECK (NODE)->block.block_num) | |
1271 | ||
a20612aa RH |
1272 | /* If block reordering splits a lexical block into discontiguous |
1273 | address ranges, we'll make a copy of the original block. | |
1274 | ||
1275 | Note that this is logically distinct from BLOCK_ABSTRACT_ORIGIN. | |
1276 | In that case, we have one source block that has been replicated | |
1277 | (through inlining or unrolling) into many logical blocks, and that | |
1278 | these logical blocks have different physical variables in them. | |
1279 | ||
1280 | In this case, we have one logical block split into several | |
1281 | non-contiguous address ranges. Most debug formats can't actually | |
1282 | represent this idea directly, so we fake it by creating multiple | |
1283 | logical blocks with the same variables in them. However, for those | |
1284 | that do support non-contiguous regions, these allow the original | |
1285 | logical block to be reconstructed, along with the set of address | |
1286 | ranges. | |
1287 | ||
1288 | One of the logical block fragments is arbitrarily chosen to be | |
1289 | the ORIGIN. The other fragments will point to the origin via | |
1290 | BLOCK_FRAGMENT_ORIGIN; the origin itself will have this pointer | |
41077ce4 | 1291 | be null. The list of fragments will be chained through |
a20612aa RH |
1292 | BLOCK_FRAGMENT_CHAIN from the origin. */ |
1293 | ||
c46080ab RK |
1294 | #define BLOCK_FRAGMENT_ORIGIN(NODE) (BLOCK_CHECK (NODE)->block.fragment_origin) |
1295 | #define BLOCK_FRAGMENT_CHAIN(NODE) (BLOCK_CHECK (NODE)->block.fragment_chain) | |
a20612aa | 1296 | |
e2500fed | 1297 | struct tree_block GTY(()) |
8da1b058 | 1298 | { |
2bf105ab | 1299 | struct tree_common common; |
61131fa2 RS |
1300 | |
1301 | unsigned handler_block_flag : 1; | |
1302 | unsigned abstract_flag : 1; | |
a84efb51 | 1303 | unsigned block_num : 30; |
61131fa2 | 1304 | |
2f78c311 ZW |
1305 | tree vars; |
1306 | tree subblocks; | |
1307 | tree supercontext; | |
1308 | tree abstract_origin; | |
1309 | tree fragment_origin; | |
1310 | tree fragment_chain; | |
8da1b058 RS |
1311 | }; |
1312 | \f | |
1313 | /* Define fields and accessors for nodes representing data types. */ | |
1314 | ||
1315 | /* See tree.def for documentation of the use of these fields. | |
eb34af89 RK |
1316 | Look at the documentation of the various ..._TYPE tree codes. |
1317 | ||
d1a6adeb | 1318 | Note that the type.values, type.minval, and type.maxval fields are |
eb34af89 RK |
1319 | overloaded and used for different macros in different kinds of types. |
1320 | Each macro must check to ensure the tree node is of the proper kind of | |
1321 | type. Note also that some of the front-ends also overload these fields, | |
1322 | so they must be checked as well. */ | |
8da1b058 | 1323 | |
12b195d9 ML |
1324 | #define TYPE_UID(NODE) (TYPE_CHECK (NODE)->type.uid) |
1325 | #define TYPE_SIZE(NODE) (TYPE_CHECK (NODE)->type.size) | |
1326 | #define TYPE_SIZE_UNIT(NODE) (TYPE_CHECK (NODE)->type.size_unit) | |
1327 | #define TYPE_MODE(NODE) (TYPE_CHECK (NODE)->type.mode) | |
eb34af89 RK |
1328 | #define TYPE_ORIG_SIZE_TYPE(NODE) (INTEGER_TYPE_CHECK (NODE)->type.values) |
1329 | #define TYPE_VALUES(NODE) (ENUMERAL_TYPE_CHECK (NODE)->type.values) | |
5c5214a9 | 1330 | #define TYPE_DOMAIN(NODE) (SET_OR_ARRAY_CHECK (NODE)->type.values) |
eb34af89 RK |
1331 | #define TYPE_FIELDS(NODE) (REC_OR_UNION_CHECK (NODE)->type.values) |
1332 | #define TYPE_METHODS(NODE) (REC_OR_UNION_CHECK (NODE)->type.maxval) | |
1333 | #define TYPE_VFIELD(NODE) (REC_OR_UNION_CHECK (NODE)->type.minval) | |
1334 | #define TYPE_ARG_TYPES(NODE) (FUNC_OR_METHOD_CHECK (NODE)->type.values) | |
1335 | #define TYPE_METHOD_BASETYPE(NODE) (FUNC_OR_METHOD_CHECK (NODE)->type.maxval) | |
1336 | #define TYPE_OFFSET_BASETYPE(NODE) (OFFSET_TYPE_CHECK (NODE)->type.maxval) | |
12b195d9 ML |
1337 | #define TYPE_POINTER_TO(NODE) (TYPE_CHECK (NODE)->type.pointer_to) |
1338 | #define TYPE_REFERENCE_TO(NODE) (TYPE_CHECK (NODE)->type.reference_to) | |
22421b79 RK |
1339 | #define TYPE_NEXT_PTR_TO(NODE) (POINTER_TYPE_CHECK (NODE)->type.minval) |
1340 | #define TYPE_NEXT_REF_TO(NODE) (REFERENCE_TYPE_CHECK (NODE)->type.minval) | |
eb34af89 RK |
1341 | #define TYPE_MIN_VALUE(NODE) (NUMERICAL_TYPE_CHECK (NODE)->type.minval) |
1342 | #define TYPE_MAX_VALUE(NODE) (NUMERICAL_TYPE_CHECK (NODE)->type.maxval) | |
12b195d9 ML |
1343 | #define TYPE_PRECISION(NODE) (TYPE_CHECK (NODE)->type.precision) |
1344 | #define TYPE_SYMTAB_ADDRESS(NODE) (TYPE_CHECK (NODE)->type.symtab.address) | |
1345 | #define TYPE_SYMTAB_POINTER(NODE) (TYPE_CHECK (NODE)->type.symtab.pointer) | |
e2500fed | 1346 | #define TYPE_SYMTAB_DIE(NODE) (TYPE_CHECK (NODE)->type.symtab.die) |
12b195d9 ML |
1347 | #define TYPE_NAME(NODE) (TYPE_CHECK (NODE)->type.name) |
1348 | #define TYPE_NEXT_VARIANT(NODE) (TYPE_CHECK (NODE)->type.next_variant) | |
1349 | #define TYPE_MAIN_VARIANT(NODE) (TYPE_CHECK (NODE)->type.main_variant) | |
12b195d9 | 1350 | #define TYPE_CONTEXT(NODE) (TYPE_CHECK (NODE)->type.context) |
12b195d9 | 1351 | #define TYPE_LANG_SPECIFIC(NODE) (TYPE_CHECK (NODE)->type.lang_specific) |
8da1b058 | 1352 | |
4061f623 BS |
1353 | /* For a VECTOR_TYPE node, this describes a different type which is emitted |
1354 | in the debugging output. We use this to describe a vector as a | |
1355 | structure containing an array. */ | |
5c5214a9 | 1356 | #define TYPE_DEBUG_REPRESENTATION_TYPE(NODE) (VECTOR_TYPE_CHECK (NODE)->type.values) |
4061f623 | 1357 | |
8ff0c1af MM |
1358 | /* For aggregate types, information about this type, as a base type |
1359 | for itself. Used in a language-dependent way for types that are | |
1360 | neither a RECORD_TYPE, QUAL_UNION_TYPE, nor a UNION_TYPE. */ | |
1361 | #define TYPE_BINFO(NODE) (TYPE_CHECK (NODE)->type.binfo) | |
1362 | ||
41472af8 MM |
1363 | /* The (language-specific) typed-based alias set for this type. |
1364 | Objects whose TYPE_ALIAS_SETs are different cannot alias each | |
1365 | other. If the TYPE_ALIAS_SET is -1, no alias set has yet been | |
1366 | assigned to this type. If the TYPE_ALIAS_SET is 0, objects of this | |
1367 | type can alias objects of any type. */ | |
1368 | #define TYPE_ALIAS_SET(NODE) (TYPE_CHECK (NODE)->type.alias_set) | |
1369 | ||
1370 | /* Nonzero iff the typed-based alias set for this type has been | |
1371 | calculated. */ | |
c46080ab | 1372 | #define TYPE_ALIAS_SET_KNOWN_P(NODE) (TYPE_CHECK (NODE)->type.alias_set != -1) |
41472af8 | 1373 | |
bad1b4ba RK |
1374 | /* A TREE_LIST of IDENTIFIER nodes of the attributes that apply |
1375 | to this type. */ | |
12b195d9 | 1376 | #define TYPE_ATTRIBUTES(NODE) (TYPE_CHECK (NODE)->type.attributes) |
bad1b4ba | 1377 | |
869637e6 RS |
1378 | /* The alignment necessary for objects of this type. |
1379 | The value is an int, measured in bits. */ | |
12b195d9 | 1380 | #define TYPE_ALIGN(NODE) (TYPE_CHECK (NODE)->type.align) |
869637e6 | 1381 | |
11cf4d18 JJ |
1382 | /* 1 if the alignment for this type was requested by "aligned" attribute, |
1383 | 0 if it is the default for this type. */ | |
1384 | #define TYPE_USER_ALIGN(NODE) (TYPE_CHECK (NODE)->type.user_align) | |
1385 | ||
834c6dff | 1386 | /* The alignment for NODE, in bytes. */ |
c46080ab | 1387 | #define TYPE_ALIGN_UNIT(NODE) (TYPE_ALIGN (NODE) / BITS_PER_UNIT) |
834c6dff | 1388 | |
2b5f2501 RH |
1389 | /* If your language allows you to declare types, and you want debug info |
1390 | for them, then you need to generate corresponding TYPE_DECL nodes. | |
1391 | These "stub" TYPE_DECL nodes have no name, and simply point at the | |
1392 | type node. You then set the TYPE_STUB_DECL field of the type node | |
1393 | to point back at the TYPE_DECL node. This allows the debug routines | |
1394 | to know that the two nodes represent the same type, so that we only | |
2ba84f36 | 1395 | get one debug info record for them. */ |
c46080ab | 1396 | #define TYPE_STUB_DECL(NODE) TREE_CHAIN (NODE) |
8da1b058 | 1397 | |
3635a54b RK |
1398 | /* In a RECORD_TYPE, UNION_TYPE or QUAL_UNION_TYPE, it means the type |
1399 | has BLKmode only because it lacks the alignment requirement for | |
1400 | its size. */ | |
12b195d9 | 1401 | #define TYPE_NO_FORCE_BLK(NODE) (TYPE_CHECK (NODE)->type.no_force_blk_flag) |
8da1b058 | 1402 | |
e36308b0 MM |
1403 | /* In an INTEGER_TYPE, it means the type represents a size. We use |
1404 | this both for validity checking and to permit optimizations that | |
1405 | are unsafe for other types. Note that the C `size_t' type should | |
1406 | *not* have this flag set. The `size_t' type is simply a typedef | |
1407 | for an ordinary integer type that happens to be the type of an | |
1408 | expression returned by `sizeof'; `size_t' has no special | |
1409 | properties. Expressions whose type have TYPE_IS_SIZETYPE set are | |
1410 | always actual sizes. */ | |
7393c642 RK |
1411 | #define TYPE_IS_SIZETYPE(NODE) \ |
1412 | (INTEGER_TYPE_CHECK (NODE)->type.no_force_blk_flag) | |
1413 | ||
1414 | /* In a FUNCTION_TYPE, indicates that the function returns with the stack | |
1415 | pointer depressed. */ | |
1416 | #define TYPE_RETURNS_STACK_DEPRESSED(NODE) \ | |
199acebb | 1417 | (FUNCTION_TYPE_CHECK (NODE)->type.no_force_blk_flag) |
fed3cef0 | 1418 | |
8da1b058 | 1419 | /* Nonzero in a type considered volatile as a whole. */ |
50e9f73a | 1420 | #define TYPE_VOLATILE(NODE) (TYPE_CHECK (NODE)->common.volatile_flag) |
8da1b058 RS |
1421 | |
1422 | /* Means this type is const-qualified. */ | |
50e9f73a | 1423 | #define TYPE_READONLY(NODE) (TYPE_CHECK (NODE)->common.readonly_flag) |
8da1b058 | 1424 | |
3932261a MM |
1425 | /* If nonzero, this type is `restrict'-qualified, in the C sense of |
1426 | the term. */ | |
1427 | #define TYPE_RESTRICT(NODE) (TYPE_CHECK (NODE)->type.restrict_flag) | |
1428 | ||
1429 | /* There is a TYPE_QUAL value for each type qualifier. They can be | |
1430 | combined by bitwise-or to form the complete set of qualifiers for a | |
1431 | type. */ | |
1432 | ||
1433 | #define TYPE_UNQUALIFIED 0x0 | |
1434 | #define TYPE_QUAL_CONST 0x1 | |
1435 | #define TYPE_QUAL_VOLATILE 0x2 | |
1436 | #define TYPE_QUAL_RESTRICT 0x4 | |
1437 | ||
1438 | /* The set of type qualifiers for this type. */ | |
a6d7adfd GM |
1439 | #define TYPE_QUALS(NODE) \ |
1440 | ((TYPE_READONLY (NODE) * TYPE_QUAL_CONST) \ | |
1441 | | (TYPE_VOLATILE (NODE) * TYPE_QUAL_VOLATILE) \ | |
66804d9e | 1442 | | (TYPE_RESTRICT (NODE) * TYPE_QUAL_RESTRICT)) |
3932261a | 1443 | |
9f86614b | 1444 | /* These flags are available for each language front end to use internally. */ |
12b195d9 ML |
1445 | #define TYPE_LANG_FLAG_0(NODE) (TYPE_CHECK (NODE)->type.lang_flag_0) |
1446 | #define TYPE_LANG_FLAG_1(NODE) (TYPE_CHECK (NODE)->type.lang_flag_1) | |
1447 | #define TYPE_LANG_FLAG_2(NODE) (TYPE_CHECK (NODE)->type.lang_flag_2) | |
1448 | #define TYPE_LANG_FLAG_3(NODE) (TYPE_CHECK (NODE)->type.lang_flag_3) | |
1449 | #define TYPE_LANG_FLAG_4(NODE) (TYPE_CHECK (NODE)->type.lang_flag_4) | |
1450 | #define TYPE_LANG_FLAG_5(NODE) (TYPE_CHECK (NODE)->type.lang_flag_5) | |
1451 | #define TYPE_LANG_FLAG_6(NODE) (TYPE_CHECK (NODE)->type.lang_flag_6) | |
8da1b058 | 1452 | |
6de9cd9a DN |
1453 | /* Used to keep track of visited nodes in tree traversals. This is set to |
1454 | 0 by copy_node and make_node. */ | |
1455 | #define TREE_VISITED(NODE) ((NODE)->common.visited) | |
1456 | ||
74a3fd26 PB |
1457 | /* If set in an ARRAY_TYPE, indicates a string type (for languages |
1458 | that distinguish string from array of char). | |
2ba84f36 | 1459 | If set in a SET_TYPE, indicates a bitstring type. */ |
12b195d9 | 1460 | #define TYPE_STRING_FLAG(NODE) (TYPE_CHECK (NODE)->type.string_flag) |
74a3fd26 | 1461 | |
4fe9b91c | 1462 | /* If non-NULL, this is an upper bound of the size (in bytes) of an |
c46080ab RK |
1463 | object of the given ARRAY_TYPE. This allows temporaries to be |
1464 | allocated. */ | |
1465 | #define TYPE_ARRAY_MAX_SIZE(ARRAY_TYPE) \ | |
a6002f8d | 1466 | (ARRAY_TYPE_CHECK (ARRAY_TYPE)->type.maxval) |
2fb2b21c | 1467 | |
0b4565c9 | 1468 | /* For a VECTOR_TYPE, this is the number of sub-parts of the vector. */ |
c46080ab RK |
1469 | #define TYPE_VECTOR_SUBPARTS(VECTOR_TYPE) \ |
1470 | GET_MODE_NUNITS (VECTOR_TYPE_CHECK (VECTOR_TYPE)->type.mode) | |
0b4565c9 | 1471 | |
cd3ce9b4 | 1472 | /* Indicates that objects of this type must be initialized by calling a |
4ac3d994 | 1473 | function when they are created. */ |
2bf105ab RK |
1474 | #define TYPE_NEEDS_CONSTRUCTING(NODE) \ |
1475 | (TYPE_CHECK (NODE)->type.needs_constructing_flag) | |
4ac3d994 | 1476 | |
adb23061 RK |
1477 | /* Indicates that objects of this type (a UNION_TYPE), should be passed |
1478 | the same way that the first union alternative would be passed. */ | |
2bf105ab RK |
1479 | #define TYPE_TRANSPARENT_UNION(NODE) \ |
1480 | (UNION_TYPE_CHECK (NODE)->type.transparent_union_flag) | |
1481 | ||
1482 | /* For an ARRAY_TYPE, indicates that it is not permitted to | |
1483 | take the address of a component of the type. */ | |
1484 | #define TYPE_NONALIASED_COMPONENT(NODE) \ | |
1485 | (ARRAY_TYPE_CHECK (NODE)->type.transparent_union_flag) | |
adb23061 | 1486 | |
956d6950 | 1487 | /* Indicated that objects of this type should be laid out in as |
9e357cd8 | 1488 | compact a way as possible. */ |
12b195d9 | 1489 | #define TYPE_PACKED(NODE) (TYPE_CHECK (NODE)->type.packed_flag) |
9e357cd8 | 1490 | |
e2500fed GK |
1491 | struct die_struct; |
1492 | ||
1493 | struct tree_type GTY(()) | |
8da1b058 | 1494 | { |
2bf105ab | 1495 | struct tree_common common; |
2f78c311 ZW |
1496 | tree values; |
1497 | tree size; | |
1498 | tree size_unit; | |
1499 | tree attributes; | |
b3ddc3ab | 1500 | unsigned int uid; |
8da1b058 | 1501 | |
b3ddc3ab | 1502 | unsigned int precision : 9; |
c149cc37 | 1503 | ENUM_BITFIELD(machine_mode) mode : 7; |
bad1b4ba | 1504 | |
74a3fd26 | 1505 | unsigned string_flag : 1; |
8da1b058 | 1506 | unsigned no_force_blk_flag : 1; |
4ac3d994 | 1507 | unsigned needs_constructing_flag : 1; |
adb23061 | 1508 | unsigned transparent_union_flag : 1; |
9e357cd8 | 1509 | unsigned packed_flag : 1; |
3932261a | 1510 | unsigned restrict_flag : 1; |
66804d9e | 1511 | unsigned spare : 2; |
3932261a | 1512 | |
8da1b058 RS |
1513 | unsigned lang_flag_0 : 1; |
1514 | unsigned lang_flag_1 : 1; | |
1515 | unsigned lang_flag_2 : 1; | |
1516 | unsigned lang_flag_3 : 1; | |
1517 | unsigned lang_flag_4 : 1; | |
1518 | unsigned lang_flag_5 : 1; | |
1519 | unsigned lang_flag_6 : 1; | |
11cf4d18 | 1520 | unsigned user_align : 1; |
8da1b058 | 1521 | |
69b78d8d | 1522 | unsigned int align; |
2f78c311 ZW |
1523 | tree pointer_to; |
1524 | tree reference_to; | |
e2500fed | 1525 | union tree_type_symtab { |
46c5ad27 AJ |
1526 | int GTY ((tag ("0"))) address; |
1527 | char * GTY ((tag ("1"))) pointer; | |
17211ab5 | 1528 | struct die_struct * GTY ((tag ("2"))) die; |
46c5ad27 | 1529 | } GTY ((desc ("debug_hooks == &sdb_debug_hooks ? 1 : debug_hooks == &dwarf2_debug_hooks ? 2 : 0"), |
e2500fed | 1530 | descbits ("2"))) symtab; |
2f78c311 ZW |
1531 | tree name; |
1532 | tree minval; | |
1533 | tree maxval; | |
1534 | tree next_variant; | |
1535 | tree main_variant; | |
1536 | tree binfo; | |
2f78c311 | 1537 | tree context; |
3bdf5ad1 | 1538 | HOST_WIDE_INT alias_set; |
8da1b058 RS |
1539 | /* Points to a structure whose details depend on the language in use. */ |
1540 | struct lang_type *lang_specific; | |
1541 | }; | |
1542 | \f | |
1543 | /* Define accessor macros for information about type inheritance | |
1544 | and basetypes. | |
1545 | ||
1546 | A "basetype" means a particular usage of a data type for inheritance | |
1547 | in another type. Each such basetype usage has its own "binfo" | |
1548 | object to describe it. The binfo object is a TREE_VEC node. | |
1549 | ||
1550 | Inheritance is represented by the binfo nodes allocated for a | |
1551 | given type. For example, given types C and D, such that D is | |
1552 | inherited by C, 3 binfo nodes will be allocated: one for describing | |
1553 | the binfo properties of C, similarly one for D, and one for | |
1554 | describing the binfo properties of D as a base type for C. | |
1555 | Thus, given a pointer to class C, one can get a pointer to the binfo | |
1556 | of D acting as a basetype for C by looking at C's binfo's basetypes. */ | |
1557 | ||
1558 | /* The actual data type node being inherited in this basetype. */ | |
1559 | #define BINFO_TYPE(NODE) TREE_TYPE (NODE) | |
1560 | ||
1561 | /* The offset where this basetype appears in its containing type. | |
1562 | BINFO_OFFSET slot holds the offset (in bytes) | |
1563 | from the base of the complete object to the base of the part of the | |
1564 | object that is allocated on behalf of this `type'. | |
1565 | This is always 0 except when there is multiple inheritance. */ | |
41077ce4 | 1566 | |
8da1b058 RS |
1567 | #define BINFO_OFFSET(NODE) TREE_VEC_ELT ((NODE), 1) |
1568 | #define TYPE_BINFO_OFFSET(NODE) BINFO_OFFSET (TYPE_BINFO (NODE)) | |
7d02bbef | 1569 | #define BINFO_OFFSET_ZEROP(NODE) (integer_zerop (BINFO_OFFSET (NODE))) |
8da1b058 RS |
1570 | |
1571 | /* The virtual function table belonging to this basetype. Virtual | |
1572 | function tables provide a mechanism for run-time method dispatching. | |
1573 | The entries of a virtual function table are language-dependent. */ | |
1574 | ||
1575 | #define BINFO_VTABLE(NODE) TREE_VEC_ELT ((NODE), 2) | |
1576 | #define TYPE_BINFO_VTABLE(NODE) BINFO_VTABLE (TYPE_BINFO (NODE)) | |
1577 | ||
1578 | /* The virtual functions in the virtual function table. This is | |
1579 | a TREE_LIST that is used as an initial approximation for building | |
1580 | a virtual function table for this basetype. */ | |
1581 | #define BINFO_VIRTUALS(NODE) TREE_VEC_ELT ((NODE), 3) | |
1582 | #define TYPE_BINFO_VIRTUALS(NODE) BINFO_VIRTUALS (TYPE_BINFO (NODE)) | |
1583 | ||
0430641b MM |
1584 | /* A vector of binfos for the direct basetypes inherited by this |
1585 | basetype. | |
8da1b058 | 1586 | |
0430641b MM |
1587 | If this basetype describes type D as inherited in C, and if the |
1588 | basetypes of D are E and F, then this vector contains binfos for | |
1589 | inheritance of E and F by C. | |
8da1b058 RS |
1590 | |
1591 | ??? This could probably be done by just allocating the | |
1592 | base types at the end of this TREE_VEC (instead of using | |
1593 | another TREE_VEC). This would simplify the calculation | |
1594 | of how many basetypes a given type had. */ | |
1595 | #define BINFO_BASETYPES(NODE) TREE_VEC_ELT ((NODE), 4) | |
1596 | #define TYPE_BINFO_BASETYPES(NODE) TREE_VEC_ELT (TYPE_BINFO (NODE), 4) | |
1597 | ||
5e1677bc MM |
1598 | /* The number of basetypes for NODE. */ |
1599 | #define BINFO_N_BASETYPES(NODE) \ | |
1600 | (BINFO_BASETYPES (NODE) ? TREE_VEC_LENGTH (BINFO_BASETYPES (NODE)) : 0) | |
1601 | ||
7d02bbef JM |
1602 | /* Accessor macro to get to the Nth basetype of this basetype. */ |
1603 | #define BINFO_BASETYPE(NODE,N) TREE_VEC_ELT (BINFO_BASETYPES (NODE), (N)) | |
c46080ab RK |
1604 | #define TYPE_BINFO_BASETYPE(NODE,N) \ |
1605 | BINFO_TYPE (TREE_VEC_ELT (BINFO_BASETYPES (TYPE_BINFO (NODE)), (N))) | |
7d02bbef | 1606 | |
39ac3e4f MM |
1607 | /* For a BINFO record describing a virtual base class, i.e., one where |
1608 | TREE_VIA_VIRTUAL is set, this field assists in locating the virtual | |
1824b90d NS |
1609 | base. The actual contents are language-dependent. In the C++ |
1610 | front-end this field is an INTEGER_CST giving an offset into the | |
1611 | vtable where the offset to the virtual base can be found. */ | |
c46080ab | 1612 | #define BINFO_VPTR_FIELD(NODE) TREE_VEC_ELT (NODE, 5) |
2cc3ac7a | 1613 | |
dbbf88d1 NS |
1614 | /* Indicates the accesses this binfo has to its bases. The values are |
1615 | access_public_node, access_protected_node or access_private_node. | |
1616 | If this array is not present, public access is implied. */ | |
1617 | #define BINFO_BASEACCESSES(NODE) TREE_VEC_ELT ((NODE), 6) | |
1618 | #define BINFO_BASEACCESS(NODE,N) TREE_VEC_ELT (BINFO_BASEACCESSES(NODE), (N)) | |
1619 | ||
1620 | /* Number of language independent elements in a binfo. Languages may | |
1621 | add additional trailing elements. */ | |
1622 | ||
1623 | #define BINFO_ELTS 7 | |
8da1b058 RS |
1624 | |
1625 | /* Slot used to build a chain that represents a use of inheritance. | |
1626 | For example, if X is derived from Y, and Y is derived from Z, | |
1627 | then this field can be used to link the binfo node for X to | |
1628 | the binfo node for X's Y to represent the use of inheritance | |
1629 | from X to Y. Similarly, this slot of the binfo node for X's Y | |
1630 | can point to the Z from which Y is inherited (in X's inheritance | |
1631 | hierarchy). In this fashion, one can represent and traverse specific | |
1632 | uses of inheritance using the binfo nodes themselves (instead of | |
1633 | consing new space pointing to binfo nodes). | |
1634 | It is up to the language-dependent front-ends to maintain | |
1635 | this information as necessary. */ | |
1636 | #define BINFO_INHERITANCE_CHAIN(NODE) TREE_VEC_ELT ((NODE), 0) | |
1637 | \f | |
1638 | /* Define fields and accessors for nodes representing declared names. */ | |
1639 | ||
7766fe8e JM |
1640 | /* Nonzero if DECL represents a decl. */ |
1641 | #define DECL_P(DECL) (TREE_CODE_CLASS (TREE_CODE (DECL)) == 'd') | |
c46080ab | 1642 | |
6de9cd9a DN |
1643 | /* Nonzero if DECL represents a variable for the SSA passes. */ |
1644 | #define SSA_VAR_P(DECL) \ | |
1645 | (TREE_CODE (DECL) == VAR_DECL \ | |
1646 | || TREE_CODE (DECL) == PARM_DECL \ | |
1647 | || TREE_CODE (DECL) == RESULT_DECL \ | |
1648 | || (TREE_CODE (DECL) == SSA_NAME \ | |
1649 | && (TREE_CODE (SSA_NAME_VAR (DECL)) == VAR_DECL \ | |
1650 | || TREE_CODE (SSA_NAME_VAR (DECL)) == PARM_DECL \ | |
1651 | || TREE_CODE (SSA_NAME_VAR (DECL)) == RESULT_DECL))) | |
1652 | ||
8da1b058 RS |
1653 | /* This is the name of the object as written by the user. |
1654 | It is an IDENTIFIER_NODE. */ | |
12b195d9 | 1655 | #define DECL_NAME(NODE) (DECL_CHECK (NODE)->decl.name) |
c46080ab | 1656 | |
92643fea MM |
1657 | /* The name of the object as the assembler will see it (but before any |
1658 | translations made by ASM_OUTPUT_LABELREF). Often this is the same | |
1659 | as DECL_NAME. It is an IDENTIFIER_NODE. */ | |
599bba86 | 1660 | #define DECL_ASSEMBLER_NAME(NODE) decl_assembler_name (NODE) |
c46080ab | 1661 | |
0e9e1e0a | 1662 | /* Returns nonzero if the DECL_ASSEMBLER_NAME for NODE has been set. If zero, |
c46080ab RK |
1663 | the NODE might still have a DECL_ASSEMBLER_NAME -- it just hasn't been set |
1664 | yet. */ | |
92643fea MM |
1665 | #define DECL_ASSEMBLER_NAME_SET_P(NODE) \ |
1666 | (DECL_CHECK (NODE)->decl.assembler_name != NULL_TREE) | |
c46080ab | 1667 | |
92643fea MM |
1668 | /* Set the DECL_ASSEMBLER_NAME for NODE to NAME. */ |
1669 | #define SET_DECL_ASSEMBLER_NAME(NODE, NAME) \ | |
1670 | (DECL_CHECK (NODE)->decl.assembler_name = (NAME)) | |
c46080ab RK |
1671 | |
1672 | /* Copy the DECL_ASSEMBLER_NAME from DECL1 to DECL2. Note that if DECL1's | |
1673 | DECL_ASSEMBLER_NAME has not yet been set, using this macro will not cause | |
1674 | the DECL_ASSEMBLER_NAME of either DECL to be set. In other words, the | |
1675 | semantics of using this macro, are different than saying: | |
41077ce4 | 1676 | |
92643fea MM |
1677 | SET_DECL_ASSEMBLER_NAME(DECL2, DECL_ASSEMBLER_NAME (DECL1)) |
1678 | ||
1679 | which will try to set the DECL_ASSEMBLER_NAME for DECL1. */ | |
c46080ab | 1680 | |
92643fea MM |
1681 | #define COPY_DECL_ASSEMBLER_NAME(DECL1, DECL2) \ |
1682 | (DECL_ASSEMBLER_NAME_SET_P (DECL1) \ | |
41077ce4 KH |
1683 | ? (void) SET_DECL_ASSEMBLER_NAME (DECL2, \ |
1684 | DECL_ASSEMBLER_NAME (DECL1)) \ | |
92643fea MM |
1685 | : (void) 0) |
1686 | ||
868e8789 DE |
1687 | /* Records the section name in a section attribute. Used to pass |
1688 | the name from decl_attributes to make_function_rtl and make_decl_rtl. */ | |
12b195d9 | 1689 | #define DECL_SECTION_NAME(NODE) (DECL_CHECK (NODE)->decl.section_name) |
c46080ab | 1690 | |
d1bd0ded GK |
1691 | /* For FIELD_DECLs, this is the RECORD_TYPE, UNION_TYPE, or |
1692 | QUAL_UNION_TYPE node that the field is a member of. For VAR_DECL, | |
1693 | PARM_DECL, FUNCTION_DECL, LABEL_DECL, and CONST_DECL nodes, this | |
1694 | points to either the FUNCTION_DECL for the containing function, | |
1695 | the RECORD_TYPE or UNION_TYPE for the containing type, or | |
1696 | NULL_TREE or a TRANSLATION_UNIT_DECL if the given decl has "file | |
1697 | scope". */ | |
12b195d9 | 1698 | #define DECL_CONTEXT(NODE) (DECL_CHECK (NODE)->decl.context) |
770ae6cc | 1699 | #define DECL_FIELD_CONTEXT(NODE) (FIELD_DECL_CHECK (NODE)->decl.context) |
91d231cb JM |
1700 | /* In a DECL this is the field where attributes are stored. */ |
1701 | #define DECL_ATTRIBUTES(NODE) (DECL_CHECK (NODE)->decl.attributes) | |
770ae6cc RK |
1702 | /* In a FIELD_DECL, this is the field position, counting in bytes, of the |
1703 | byte containing the bit closest to the beginning of the structure. */ | |
1704 | #define DECL_FIELD_OFFSET(NODE) (FIELD_DECL_CHECK (NODE)->decl.arguments) | |
1705 | /* In a FIELD_DECL, this is the offset, in bits, of the first bit of the | |
1706 | field from DECL_FIELD_OFFSET. */ | |
1707 | #define DECL_FIELD_BIT_OFFSET(NODE) (FIELD_DECL_CHECK (NODE)->decl.u2.t) | |
8da1b058 | 1708 | /* In a FIELD_DECL, this indicates whether the field was a bit-field and |
8e148bef RS |
1709 | if so, the type that was originally specified for it. |
1710 | TREE_TYPE may have been modified (in finish_struct). */ | |
770ae6cc | 1711 | #define DECL_BIT_FIELD_TYPE(NODE) (FIELD_DECL_CHECK (NODE)->decl.result) |
c46080ab RK |
1712 | /* In FUNCTION_DECL, a chain of ..._DECL nodes. |
1713 | VAR_DECL and PARM_DECL reserve the arguments slot for language-specific | |
1714 | uses. */ | |
12b195d9 | 1715 | #define DECL_ARGUMENTS(NODE) (DECL_CHECK (NODE)->decl.arguments) |
17aec3eb RK |
1716 | /* This field is used to reference anything in decl.result and is meant only |
1717 | for use by the garbage collector. */ | |
1718 | #define DECL_RESULT_FLD(NODE) (DECL_CHECK (NODE)->decl.result) | |
8da1b058 | 1719 | /* In FUNCTION_DECL, holds the decl for the return value. */ |
770ae6cc | 1720 | #define DECL_RESULT(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.result) |
9506a28d | 1721 | /* For a TYPE_DECL, holds the "original" type. (TREE_TYPE has the copy.) */ |
770ae6cc | 1722 | #define DECL_ORIGINAL_TYPE(NODE) (TYPE_DECL_CHECK (NODE)->decl.result) |
8da1b058 | 1723 | /* In PARM_DECL, holds the type as written (perhaps a function or array). */ |
770ae6cc | 1724 | #define DECL_ARG_TYPE_AS_WRITTEN(NODE) (PARM_DECL_CHECK (NODE)->decl.result) |
8da1b058 | 1725 | /* For a FUNCTION_DECL, holds the tree of BINDINGs. |
d1bd0ded | 1726 | For a TRANSLATION_UNIT_DECL, holds the namespace's BLOCK. |
8da1b058 RS |
1727 | For a VAR_DECL, holds the initial value. |
1728 | For a PARM_DECL, not used--default | |
1729 | values for parameters are encoded in the type of the function, | |
4f976745 RK |
1730 | not in the PARM_DECL slot. |
1731 | ||
1732 | ??? Need to figure out some way to check this isn't a PARM_DECL. */ | |
12b195d9 | 1733 | #define DECL_INITIAL(NODE) (DECL_CHECK (NODE)->decl.initial) |
8da1b058 RS |
1734 | /* For a PARM_DECL, records the data type used to pass the argument, |
1735 | which may be different from the type seen in the program. */ | |
770ae6cc | 1736 | #define DECL_ARG_TYPE(NODE) (PARM_DECL_CHECK (NODE)->decl.initial) |
3635a54b RK |
1737 | /* For a FIELD_DECL in a QUAL_UNION_TYPE, records the expression, which |
1738 | if nonzero, indicates that the field occupies the type. */ | |
770ae6cc | 1739 | #define DECL_QUALIFIER(NODE) (FIELD_DECL_CHECK (NODE)->decl.initial) |
f31686a3 RH |
1740 | /* These two fields describe where in the source code the declaration |
1741 | was. If the declaration appears in several places (as for a C | |
1742 | function that is declared first and then defined later), this | |
1743 | information should refer to the definition. */ | |
1744 | #define DECL_SOURCE_LOCATION(NODE) (DECL_CHECK (NODE)->decl.locus) | |
1745 | #define DECL_SOURCE_FILE(NODE) (DECL_SOURCE_LOCATION (NODE).file) | |
1746 | #define DECL_SOURCE_LINE(NODE) (DECL_SOURCE_LOCATION (NODE).line) | |
06ceef4e | 1747 | /* Holds the size of the datum, in bits, as a tree expression. |
8da1b058 | 1748 | Need not be constant. */ |
12b195d9 | 1749 | #define DECL_SIZE(NODE) (DECL_CHECK (NODE)->decl.size) |
06ceef4e RK |
1750 | /* Likewise for the size in bytes. */ |
1751 | #define DECL_SIZE_UNIT(NODE) (DECL_CHECK (NODE)->decl.size_unit) | |
971774bb | 1752 | /* Holds the alignment required for the datum, in bits. */ |
770ae6cc | 1753 | #define DECL_ALIGN(NODE) (DECL_CHECK (NODE)->decl.u1.a.align) |
971774bb MM |
1754 | /* The alignment of NODE, in bytes. */ |
1755 | #define DECL_ALIGN_UNIT(NODE) (DECL_ALIGN (NODE) / BITS_PER_UNIT) | |
2f5c7f45 GK |
1756 | /* For FIELD_DECLs, off_align holds the number of low-order bits of |
1757 | DECL_FIELD_OFFSET which are known to be always zero. | |
1758 | DECL_OFFSET_ALIGN thus returns the alignment that DECL_FIELD_OFFSET | |
1759 | has. */ | |
1760 | #define DECL_OFFSET_ALIGN(NODE) \ | |
1761 | (((unsigned HOST_WIDE_INT)1) << FIELD_DECL_CHECK (NODE)->decl.u1.a.off_align) | |
1762 | /* Specify that DECL_ALIGN(NODE) is a multiple of X. */ | |
1763 | #define SET_DECL_OFFSET_ALIGN(NODE, X) \ | |
1764 | (FIELD_DECL_CHECK (NODE)->decl.u1.a.off_align = exact_log2 ((X) & -(X))) | |
11cf4d18 JJ |
1765 | /* 1 if the alignment for this type was requested by "aligned" attribute, |
1766 | 0 if it is the default for this type. */ | |
1767 | #define DECL_USER_ALIGN(NODE) (DECL_CHECK (NODE)->decl.user_align) | |
17c73321 RK |
1768 | /* Holds the machine mode corresponding to the declaration of a variable or |
1769 | field. Always equal to TYPE_MODE (TREE_TYPE (decl)) except for a | |
1770 | FIELD_DECL. */ | |
12b195d9 | 1771 | #define DECL_MODE(NODE) (DECL_CHECK (NODE)->decl.mode) |
616f6d84 | 1772 | /* Holds the RTL expression for the value of a variable or function. |
19e7881c MM |
1773 | This value can be evaluated lazily for functions, variables with |
1774 | static storage duration, and labels. */ | |
1775 | #define DECL_RTL(NODE) \ | |
1776 | (DECL_CHECK (NODE)->decl.rtl \ | |
1777 | ? (NODE)->decl.rtl \ | |
1778 | : (make_decl_rtl (NODE, NULL), (NODE)->decl.rtl)) | |
1779 | /* Set the DECL_RTL for NODE to RTL. */ | |
a560d4d4 | 1780 | #define SET_DECL_RTL(NODE, RTL) set_decl_rtl (NODE, RTL) |
0e9e1e0a | 1781 | /* Returns nonzero if the DECL_RTL for NODE has already been set. */ |
c46080ab | 1782 | #define DECL_RTL_SET_P(NODE) (DECL_CHECK (NODE)->decl.rtl != NULL) |
19e7881c MM |
1783 | /* Copy the RTL from NODE1 to NODE2. If the RTL was not set for |
1784 | NODE1, it will not be set for NODE2; this is a lazy copy. */ | |
1785 | #define COPY_DECL_RTL(NODE1, NODE2) \ | |
1786 | (DECL_CHECK (NODE2)->decl.rtl = DECL_CHECK (NODE1)->decl.rtl) | |
1787 | /* The DECL_RTL for NODE, if it is set, or NULL, if it is not set. */ | |
c46080ab RK |
1788 | #define DECL_RTL_IF_SET(NODE) (DECL_RTL_SET_P (NODE) ? DECL_RTL (NODE) : NULL) |
1789 | ||
8da1b058 RS |
1790 | /* For PARM_DECL, holds an RTL for the stack slot or register |
1791 | where the data was actually passed. */ | |
770ae6cc | 1792 | #define DECL_INCOMING_RTL(NODE) (PARM_DECL_CHECK (NODE)->decl.u2.r) |
c46080ab | 1793 | |
1da326c3 SB |
1794 | /* For FUNCTION_DECL, this holds a pointer to a structure ("struct function") |
1795 | that describes the status of this function. */ | |
1796 | #define DECL_STRUCT_FUNCTION(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.u2.f) | |
c46080ab | 1797 | |
66321686 RS |
1798 | /* For FUNCTION_DECL, if it is built-in, |
1799 | this identifies which built-in operation it is. */ | |
770ae6cc | 1800 | #define DECL_FUNCTION_CODE(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.u1.f) |
8da1b058 | 1801 | |
6de9cd9a DN |
1802 | /* In a FUNCTION_DECL for which DECL_BUILT_IN does not hold, this is |
1803 | the approximate number of statements in this function. There is | |
1804 | no need for this number to be exact; it is only used in various | |
1805 | heuristics regarding optimization. */ | |
1806 | #define DECL_NUM_STMTS(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.u1.i) | |
1807 | ||
8da1b058 RS |
1808 | /* The DECL_VINDEX is used for FUNCTION_DECLS in two different ways. |
1809 | Before the struct containing the FUNCTION_DECL is laid out, | |
1810 | DECL_VINDEX may point to a FUNCTION_DECL in a base class which | |
1811 | is the FUNCTION_DECL which this FUNCTION_DECL will replace as a virtual | |
1812 | function. When the class is laid out, this pointer is changed | |
1813 | to an INTEGER_CST node which is suitable for use as an index | |
1814 | into the virtual function table. */ | |
12b195d9 | 1815 | #define DECL_VINDEX(NODE) (DECL_CHECK (NODE)->decl.vindex) |
c46080ab | 1816 | |
8da1b058 RS |
1817 | /* For FIELD_DECLS, DECL_FCONTEXT is the *first* baseclass in |
1818 | which this FIELD_DECL is defined. This information is needed when | |
1819 | writing debugging information about vfield and vbase decls for C++. */ | |
770ae6cc | 1820 | #define DECL_FCONTEXT(NODE) (FIELD_DECL_CHECK (NODE)->decl.vindex) |
8da1b058 | 1821 | |
0e77444b | 1822 | /* Every ..._DECL node gets a unique number. */ |
12b195d9 | 1823 | #define DECL_UID(NODE) (DECL_CHECK (NODE)->decl.uid) |
0e77444b | 1824 | |
c5caa350 CH |
1825 | /* For any sort of a ..._DECL node, this points to the original (abstract) |
1826 | decl node which this decl is an instance of, or else it is NULL indicating | |
4a7d05dc DE |
1827 | that this decl is not an instance of some other decl. For example, |
1828 | in a nested declaration of an inline function, this points back to the | |
1829 | definition. */ | |
12b195d9 | 1830 | #define DECL_ABSTRACT_ORIGIN(NODE) (DECL_CHECK (NODE)->decl.abstract_origin) |
c5caa350 | 1831 | |
02e24c7a MM |
1832 | /* Like DECL_ABSTRACT_ORIGIN, but returns NODE if there's no abstract |
1833 | origin. This is useful when setting the DECL_ABSTRACT_ORIGIN. */ | |
1834 | #define DECL_ORIGIN(NODE) \ | |
b9daac31 | 1835 | (DECL_ABSTRACT_ORIGIN (NODE) ? DECL_ABSTRACT_ORIGIN (NODE) : (NODE)) |
02e24c7a | 1836 | |
f93dacbd RK |
1837 | /* Nonzero for any sort of ..._DECL node means this decl node represents an |
1838 | inline instance of some original (abstract) decl from an inline function; | |
1839 | suppress any warnings about shadowing some other variable. FUNCTION_DECL | |
2ba84f36 | 1840 | nodes can also have their abstract origin set to themselves. */ |
b9daac31 | 1841 | #define DECL_FROM_INLINE(NODE) (DECL_ABSTRACT_ORIGIN (NODE) != NULL_TREE \ |
3d62d651 | 1842 | && DECL_ABSTRACT_ORIGIN (NODE) != (NODE)) |
8da1b058 RS |
1843 | |
1844 | /* Nonzero if a _DECL means that the name of this decl should be ignored | |
1845 | for symbolic debug purposes. */ | |
12b195d9 | 1846 | #define DECL_IGNORED_P(NODE) (DECL_CHECK (NODE)->decl.ignored_flag) |
8da1b058 | 1847 | |
c5caa350 CH |
1848 | /* Nonzero for a given ..._DECL node means that this node represents an |
1849 | "abstract instance" of the given declaration (e.g. in the original | |
1850 | declaration of an inline function). When generating symbolic debugging | |
9faa82d8 | 1851 | information, we mustn't try to generate any address information for nodes |
c5caa350 CH |
1852 | marked as "abstract instances" because we don't actually generate |
1853 | any code or allocate any data space for such instances. */ | |
12b195d9 | 1854 | #define DECL_ABSTRACT(NODE) (DECL_CHECK (NODE)->decl.abstract_flag) |
c5caa350 | 1855 | |
3110a56e RS |
1856 | /* Nonzero if a _DECL means that no warnings should be generated just |
1857 | because this decl is unused. */ | |
c46080ab RK |
1858 | #define DECL_IN_SYSTEM_HEADER(NODE) \ |
1859 | (DECL_CHECK (NODE)->decl.in_system_header_flag) | |
3110a56e | 1860 | |
2c0d84d6 MS |
1861 | /* Nonzero for a given ..._DECL node means that this node should be |
1862 | put in .common, if possible. If a DECL_INITIAL is given, and it | |
1863 | is not error_mark_node, then the decl cannot be put in .common. */ | |
12b195d9 | 1864 | #define DECL_COMMON(NODE) (DECL_CHECK (NODE)->decl.common_flag) |
2c0d84d6 | 1865 | |
3110a56e | 1866 | /* Language-specific decl information. */ |
12b195d9 | 1867 | #define DECL_LANG_SPECIFIC(NODE) (DECL_CHECK (NODE)->decl.lang_specific) |
8da1b058 RS |
1868 | |
1869 | /* In a VAR_DECL or FUNCTION_DECL, | |
1870 | nonzero means external reference: | |
1871 | do not allocate storage, and refer to a definition elsewhere. */ | |
12b195d9 | 1872 | #define DECL_EXTERNAL(NODE) (DECL_CHECK (NODE)->decl.external_flag) |
8da1b058 | 1873 | |
2ce3c6c6 | 1874 | /* In a VAR_DECL for a RECORD_TYPE, sets number for non-init_priority |
14b493d6 | 1875 | initializations. */ |
2ce3c6c6 JM |
1876 | #define DEFAULT_INIT_PRIORITY 65535 |
1877 | #define MAX_INIT_PRIORITY 65535 | |
9a6e70c9 | 1878 | #define MAX_RESERVED_INIT_PRIORITY 100 |
2ce3c6c6 | 1879 | |
60e9e4b7 DE |
1880 | /* In a TYPE_DECL |
1881 | nonzero means the detail info about this type is not dumped into stabs. | |
41077ce4 | 1882 | Instead it will generate cross reference ('x') of names. |
2ba84f36 | 1883 | This uses the same flag as DECL_EXTERNAL. */ |
770ae6cc | 1884 | #define TYPE_DECL_SUPPRESS_DEBUG(NODE) \ |
c46080ab | 1885 | (TYPE_DECL_CHECK (NODE)->decl.external_flag) |
60e9e4b7 | 1886 | |
a5f99f01 | 1887 | /* In VAR_DECL and PARM_DECL nodes, nonzero means declared `register'. */ |
12b195d9 | 1888 | #define DECL_REGISTER(NODE) (DECL_CHECK (NODE)->decl.regdecl_flag) |
c46080ab | 1889 | |
a5f99f01 RK |
1890 | /* In LABEL_DECL nodes, nonzero means that an error message about |
1891 | jumping into such a binding contour has been printed for this label. */ | |
770ae6cc | 1892 | #define DECL_ERROR_ISSUED(NODE) (LABEL_DECL_CHECK (NODE)->decl.regdecl_flag) |
c46080ab | 1893 | |
5a1c7968 | 1894 | /* In a FIELD_DECL, indicates this field should be bit-packed. */ |
770ae6cc | 1895 | #define DECL_PACKED(NODE) (FIELD_DECL_CHECK (NODE)->decl.regdecl_flag) |
c46080ab | 1896 | |
0e9e1e0a | 1897 | /* In a FUNCTION_DECL with a nonzero DECL_CONTEXT, indicates that a |
a5f99f01 | 1898 | static chain is not needed. */ |
770ae6cc | 1899 | #define DECL_NO_STATIC_CHAIN(NODE) \ |
c46080ab | 1900 | (FUNCTION_DECL_CHECK (NODE)->decl.regdecl_flag) |
8da1b058 RS |
1901 | |
1902 | /* Nonzero in a ..._DECL means this variable is ref'd from a nested function. | |
1903 | For VAR_DECL nodes, PARM_DECL nodes, and FUNCTION_DECL nodes. | |
1904 | ||
1905 | For LABEL_DECL nodes, nonzero if nonlocal gotos to the label are permitted. | |
1906 | ||
1907 | Also set in some languages for variables, etc., outside the normal | |
1908 | lexical scope, such as class instance variables. */ | |
12b195d9 | 1909 | #define DECL_NONLOCAL(NODE) (DECL_CHECK (NODE)->decl.nonlocal_flag) |
8da1b058 RS |
1910 | |
1911 | /* Nonzero in a FUNCTION_DECL means this function can be substituted | |
1912 | where it is called. */ | |
770ae6cc | 1913 | #define DECL_INLINE(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.inline_flag) |
8da1b058 | 1914 | |
b3c3af2f SB |
1915 | /* Nonzero in a FUNCTION_DECL means that this function was declared inline, |
1916 | such as via the `inline' keyword in C/C++. This flag controls the linkage | |
1917 | semantics of 'inline'; whether or not the function is inlined is | |
1918 | controlled by DECL_INLINE. */ | |
1919 | #define DECL_DECLARED_INLINE_P(NODE) \ | |
1920 | (FUNCTION_DECL_CHECK (NODE)->decl.declared_inline_flag) | |
bc522472 | 1921 | |
6de9cd9a DN |
1922 | /* In a VAR_DECL, nonzero if the decl is a register variable with |
1923 | an explicit asm specification. */ | |
1924 | #define DECL_HARD_REGISTER(NODE) (DECL_CHECK (NODE)->decl.inline_flag) | |
1925 | ||
968b41a1 MA |
1926 | /* Value of the decls's visibility attribute */ |
1927 | #define DECL_VISIBILITY(NODE) (DECL_CHECK (NODE)->decl.visibility) | |
1928 | ||
5daf7c0a JM |
1929 | /* In a FUNCTION_DECL, nonzero if the function cannot be inlined. */ |
1930 | #define DECL_UNINLINABLE(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.uninlinable) | |
1931 | ||
41077ce4 | 1932 | /* In a VAR_DECL, nonzero if the data should be allocated from |
3d78f2e9 RH |
1933 | thread-local storage. */ |
1934 | #define DECL_THREAD_LOCAL(NODE) (VAR_DECL_CHECK (NODE)->decl.thread_local_flag) | |
1935 | ||
588d3ade AO |
1936 | /* In a FUNCTION_DECL, the saved representation of the body of the |
1937 | entire function. Usually a COMPOUND_STMT, but in C++ this may also | |
1938 | be a RETURN_INIT, CTOR_INITIALIZER, or TRY_BLOCK. */ | |
1939 | #define DECL_SAVED_TREE(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.saved_tree) | |
1940 | ||
684d9f3b | 1941 | /* List of FUNCTION_DECLs inlined into this function's body. */ |
588d3ade AO |
1942 | #define DECL_INLINED_FNS(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.inlined_fns) |
1943 | ||
140592a0 AG |
1944 | /* Nonzero in a FUNCTION_DECL means this function should be treated |
1945 | as if it were a malloc, meaning it returns a pointer that is | |
1946 | not an alias. */ | |
770ae6cc | 1947 | #define DECL_IS_MALLOC(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.malloc_flag) |
140592a0 | 1948 | |
2a8f6b90 JH |
1949 | /* Nonzero in a FUNCTION_DECL means this function should be treated |
1950 | as "pure" function (like const function, but may read global memory). */ | |
1951 | #define DECL_IS_PURE(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.pure_flag) | |
1952 | ||
8da1b058 RS |
1953 | /* Nonzero in a FIELD_DECL means it is a bit field, and must be accessed |
1954 | specially. */ | |
770ae6cc | 1955 | #define DECL_BIT_FIELD(NODE) (FIELD_DECL_CHECK (NODE)->decl.bit_field_flag) |
c46080ab | 1956 | |
8da1b058 RS |
1957 | /* In a LABEL_DECL, nonzero means label was defined inside a binding |
1958 | contour that restored a stack level and which is now exited. */ | |
770ae6cc | 1959 | #define DECL_TOO_LATE(NODE) (LABEL_DECL_CHECK (NODE)->decl.bit_field_flag) |
26db82d8 | 1960 | |
12a22e76 | 1961 | /* Unused in FUNCTION_DECL. */ |
26db82d8 | 1962 | |
b8af45d0 RS |
1963 | /* In a VAR_DECL that's static, |
1964 | nonzero if the space is in the text section. */ | |
770ae6cc | 1965 | #define DECL_IN_TEXT_SECTION(NODE) (VAR_DECL_CHECK (NODE)->decl.bit_field_flag) |
8da1b058 | 1966 | |
12a22e76 JM |
1967 | /* In a FUNCTION_DECL, nonzero means a built in function. */ |
1968 | #define DECL_BUILT_IN(NODE) (DECL_BUILT_IN_CLASS (NODE) != NOT_BUILT_IN) | |
c46080ab | 1969 | |
12a22e76 | 1970 | /* For a builtin function, identify which part of the compiler defined it. */ |
770ae6cc | 1971 | #define DECL_BUILT_IN_CLASS(NODE) \ |
c46080ab | 1972 | (FUNCTION_DECL_CHECK (NODE)->decl.built_in_class) |
12a22e76 | 1973 | |
5a1c7968 | 1974 | /* Used in VAR_DECLs to indicate that the variable is a vtable. |
2458b9c0 JM |
1975 | Used in FIELD_DECLs for vtable pointers. |
1976 | Used in FUNCTION_DECLs to indicate that the function is virtual. */ | |
12b195d9 | 1977 | #define DECL_VIRTUAL_P(NODE) (DECL_CHECK (NODE)->decl.virtual_flag) |
8da1b058 | 1978 | |
30801830 JM |
1979 | /* Used to indicate that the linkage status of this DECL is not yet known, |
1980 | so it should not be output now. */ | |
12b195d9 | 1981 | #define DECL_DEFER_OUTPUT(NODE) (DECL_CHECK (NODE)->decl.defer_output) |
30801830 | 1982 | |
adb23061 RK |
1983 | /* Used in PARM_DECLs whose type are unions to indicate that the |
1984 | argument should be passed in the same way that the first union | |
1985 | alternative would be passed. */ | |
770ae6cc | 1986 | #define DECL_TRANSPARENT_UNION(NODE) \ |
c46080ab | 1987 | (PARM_DECL_CHECK (NODE)->decl.transparent_union) |
adb23061 | 1988 | |
2c5f4139 JM |
1989 | /* Used in FUNCTION_DECLs to indicate that they should be run automatically |
1990 | at the beginning or end of execution. */ | |
770ae6cc | 1991 | #define DECL_STATIC_CONSTRUCTOR(NODE) \ |
c46080ab | 1992 | (FUNCTION_DECL_CHECK (NODE)->decl.static_ctor_flag) |
770ae6cc RK |
1993 | |
1994 | #define DECL_STATIC_DESTRUCTOR(NODE) \ | |
1995 | (FUNCTION_DECL_CHECK (NODE)->decl.static_dtor_flag) | |
2c5f4139 | 1996 | |
3edbc4b9 | 1997 | /* Used to indicate that this DECL represents a compiler-generated entity. */ |
12b195d9 | 1998 | #define DECL_ARTIFICIAL(NODE) (DECL_CHECK (NODE)->decl.artificial_flag) |
3edbc4b9 | 1999 | |
daefd78b | 2000 | /* Used to indicate that this DECL has weak linkage. */ |
12b195d9 | 2001 | #define DECL_WEAK(NODE) (DECL_CHECK (NODE)->decl.weak_flag) |
daefd78b | 2002 | |
c5bd82cb JM |
2003 | /* Used in TREE_PUBLIC decls to indicate that copies of this DECL in |
2004 | multiple translation units should be merged. */ | |
12b195d9 | 2005 | #define DECL_ONE_ONLY(NODE) (DECL_CHECK (NODE)->decl.transparent_union) |
c5bd82cb | 2006 | |
59182242 MM |
2007 | /* Used in a DECL to indicate that, even if it TREE_PUBLIC, it need |
2008 | not be put out unless it is needed in this translation unit. | |
2009 | Entities like this are shared across translation units (like weak | |
2010 | entities), but are guaranteed to be generated by any translation | |
2011 | unit that needs them, and therefore need not be put out anywhere | |
2012 | where they are not needed. DECL_COMDAT is just a hint to the | |
2013 | back-end; it is up to front-ends which set this flag to ensure | |
2014 | that there will never be any harm, other than bloat, in putting out | |
2015 | something which is DECL_COMDAT. */ | |
2016 | #define DECL_COMDAT(NODE) (DECL_CHECK (NODE)->decl.comdat_flag) | |
2017 | ||
07417085 KR |
2018 | /* Used in FUNCTION_DECLs to indicate that function entry and exit should |
2019 | be instrumented with calls to support routines. */ | |
770ae6cc | 2020 | #define DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT(NODE) \ |
c46080ab | 2021 | (FUNCTION_DECL_CHECK (NODE)->decl.no_instrument_function_entry_exit) |
07417085 | 2022 | |
a157febd GK |
2023 | /* Used in FUNCTION_DECLs to indicate that limit-stack-* should be |
2024 | disabled in this function. */ | |
770ae6cc | 2025 | #define DECL_NO_LIMIT_STACK(NODE) \ |
c46080ab | 2026 | (FUNCTION_DECL_CHECK (NODE)->decl.no_limit_stack) |
a157febd | 2027 | |
8da1b058 | 2028 | /* Additional flags for language-specific uses. */ |
12b195d9 ML |
2029 | #define DECL_LANG_FLAG_0(NODE) (DECL_CHECK (NODE)->decl.lang_flag_0) |
2030 | #define DECL_LANG_FLAG_1(NODE) (DECL_CHECK (NODE)->decl.lang_flag_1) | |
2031 | #define DECL_LANG_FLAG_2(NODE) (DECL_CHECK (NODE)->decl.lang_flag_2) | |
2032 | #define DECL_LANG_FLAG_3(NODE) (DECL_CHECK (NODE)->decl.lang_flag_3) | |
2033 | #define DECL_LANG_FLAG_4(NODE) (DECL_CHECK (NODE)->decl.lang_flag_4) | |
2034 | #define DECL_LANG_FLAG_5(NODE) (DECL_CHECK (NODE)->decl.lang_flag_5) | |
2035 | #define DECL_LANG_FLAG_6(NODE) (DECL_CHECK (NODE)->decl.lang_flag_6) | |
2036 | #define DECL_LANG_FLAG_7(NODE) (DECL_CHECK (NODE)->decl.lang_flag_7) | |
8da1b058 | 2037 | |
27da1b4d MK |
2038 | /* Used to indicate that the pointer to this DECL cannot be treated as |
2039 | an address constant. */ | |
2040 | #define DECL_NON_ADDR_CONST_P(NODE) (DECL_CHECK (NODE)->decl.non_addr_const_p) | |
2041 | ||
2bf105ab RK |
2042 | /* Used in a FIELD_DECL to indicate that we cannot form the address of |
2043 | this component. */ | |
2044 | #define DECL_NONADDRESSABLE_P(NODE) \ | |
2045 | (FIELD_DECL_CHECK (NODE)->decl.non_addressable) | |
2046 | ||
3932261a MM |
2047 | /* Used to indicate an alias set for the memory pointed to by this |
2048 | particular FIELD_DECL, PARM_DECL, or VAR_DECL, which must have | |
2049 | pointer (or reference) type. */ | |
2050 | #define DECL_POINTER_ALIAS_SET(NODE) \ | |
2051 | (DECL_CHECK (NODE)->decl.pointer_alias_set) | |
2052 | ||
9cf737f8 | 2053 | /* Used to store the alias_var for a DECL node. */ |
6de9cd9a DN |
2054 | #define DECL_PTA_ALIASVAR(NODE) \ |
2055 | (DECL_CHECK (NODE)->decl.alias_var) | |
2056 | ||
2057 | /* A numeric unique identifier for a LABEL_DECL. The UID allocation is | |
2058 | dense, unique within any one function, and may be used to index arrays. | |
2059 | If the value is -1, then no UID has been assigned. */ | |
2060 | #define LABEL_DECL_UID(NODE) \ | |
2061 | (LABEL_DECL_CHECK (NODE)->decl.pointer_alias_set) | |
2062 | ||
3932261a MM |
2063 | /* Nonzero if an alias set has been assigned to this declaration. */ |
2064 | #define DECL_POINTER_ALIAS_SET_KNOWN_P(NODE) \ | |
2065 | (DECL_POINTER_ALIAS_SET (NODE) != - 1) | |
2066 | ||
4b1e44be RH |
2067 | /* Nonzero for a decl which is at file scope. */ |
2068 | #define DECL_FILE_SCOPE_P(EXP) \ | |
2069 | (! DECL_CONTEXT (EXP) \ | |
2070 | || TREE_CODE (DECL_CONTEXT (EXP)) == TRANSLATION_UNIT_DECL) | |
2071 | ||
6de9cd9a DN |
2072 | /* Nonzero for a decl that has been marked as needing a memory slot. |
2073 | NOTE: Never use this macro directly. It will give you incomplete | |
2074 | information. Most of the time this bit will only be set after alias | |
2075 | analysis in the tree optimizers. It's always better to call | |
2076 | needs_to_live_in_memory instead. To mark memory variables use | |
2077 | mark_call_clobbered. */ | |
2078 | #define DECL_NEEDS_TO_LIVE_IN_MEMORY_INTERNAL(DECL) \ | |
2079 | DECL_CHECK (DECL)->decl.needs_to_live_in_memory | |
2080 | ||
6f312d18 ZW |
2081 | /* Nonzero for a decl that cgraph has decided should be inlined into |
2082 | at least one call site. It is not meaningful to look at this | |
2083 | directly; always use cgraph_function_possibly_inlined_p. */ | |
2084 | #define DECL_POSSIBLY_INLINED(DECL) \ | |
2085 | FUNCTION_DECL_CHECK (DECL)->decl.possibly_inlined | |
2086 | ||
968b41a1 MA |
2087 | /* Enumerate visibility settings. */ |
2088 | ||
2089 | enum symbol_visibility | |
2090 | { | |
2091 | VISIBILITY_DEFAULT, | |
2092 | VISIBILITY_INTERNAL, | |
2093 | VISIBILITY_HIDDEN, | |
2094 | VISIBILITY_PROTECTED | |
2095 | }; | |
2096 | ||
eb3ae3e1 | 2097 | struct function; |
6de9cd9a | 2098 | union alias_var_def; |
e2500fed | 2099 | struct tree_decl GTY(()) |
8da1b058 | 2100 | { |
2bf105ab | 2101 | struct tree_common common; |
e6986399 | 2102 | location_t locus; |
0e77444b | 2103 | unsigned int uid; |
2f78c311 | 2104 | tree size; |
e60a8c26 | 2105 | ENUM_BITFIELD(machine_mode) mode : 8; |
8da1b058 RS |
2106 | |
2107 | unsigned external_flag : 1; | |
2108 | unsigned nonlocal_flag : 1; | |
2109 | unsigned regdecl_flag : 1; | |
2110 | unsigned inline_flag : 1; | |
2111 | unsigned bit_field_flag : 1; | |
2112 | unsigned virtual_flag : 1; | |
8da1b058 | 2113 | unsigned ignored_flag : 1; |
c5caa350 | 2114 | unsigned abstract_flag : 1; |
8da1b058 | 2115 | |
3110a56e | 2116 | unsigned in_system_header_flag : 1; |
2c0d84d6 | 2117 | unsigned common_flag : 1; |
30801830 | 2118 | unsigned defer_output : 1; |
adb23061 | 2119 | unsigned transparent_union : 1; |
2c5f4139 JM |
2120 | unsigned static_ctor_flag : 1; |
2121 | unsigned static_dtor_flag : 1; | |
3edbc4b9 | 2122 | unsigned artificial_flag : 1; |
daefd78b | 2123 | unsigned weak_flag : 1; |
3110a56e | 2124 | |
9df2c88c RK |
2125 | unsigned non_addr_const_p : 1; |
2126 | unsigned no_instrument_function_entry_exit : 1; | |
9df2c88c RK |
2127 | unsigned comdat_flag : 1; |
2128 | unsigned malloc_flag : 1; | |
2129 | unsigned no_limit_stack : 1; | |
c149cc37 | 2130 | ENUM_BITFIELD(built_in_class) built_in_class : 2; |
2bf105ab | 2131 | unsigned pure_flag : 1; |
37a08a29 | 2132 | |
2bf105ab | 2133 | unsigned non_addressable : 1; |
11cf4d18 | 2134 | unsigned user_align : 1; |
5daf7c0a | 2135 | unsigned uninlinable : 1; |
3d78f2e9 | 2136 | unsigned thread_local_flag : 1; |
b3c3af2f | 2137 | unsigned declared_inline_flag : 1; |
6de9cd9a | 2138 | unsigned seen_in_bind_expr : 1; |
968b41a1 | 2139 | ENUM_BITFIELD(symbol_visibility) visibility : 2; |
9df2c88c | 2140 | |
8da1b058 RS |
2141 | unsigned lang_flag_0 : 1; |
2142 | unsigned lang_flag_1 : 1; | |
2143 | unsigned lang_flag_2 : 1; | |
2144 | unsigned lang_flag_3 : 1; | |
2145 | unsigned lang_flag_4 : 1; | |
2146 | unsigned lang_flag_5 : 1; | |
2147 | unsigned lang_flag_6 : 1; | |
2148 | unsigned lang_flag_7 : 1; | |
2149 | ||
6de9cd9a | 2150 | unsigned needs_to_live_in_memory : 1; |
6f312d18 ZW |
2151 | unsigned possibly_inlined : 1; |
2152 | /* 14 unused bits. */ | |
6de9cd9a | 2153 | |
e2500fed | 2154 | union tree_decl_u1 { |
b850de4f MM |
2155 | /* In a FUNCTION_DECL for which DECL_BUILT_IN holds, this is |
2156 | DECL_FUNCTION_CODE. */ | |
9df2c88c | 2157 | enum built_in_function f; |
43aa4e05 | 2158 | /* In a FUNCTION_DECL for which DECL_BUILT_IN does not hold, this |
b850de4f MM |
2159 | is used by language-dependent code. */ |
2160 | HOST_WIDE_INT i; | |
2161 | /* DECL_ALIGN and DECL_OFFSET_ALIGN. (These are not used for | |
2162 | FUNCTION_DECLs). */ | |
e2500fed | 2163 | struct tree_decl_u1_a { |
46c5ad27 | 2164 | unsigned int align : 24; |
e2500fed GK |
2165 | unsigned int off_align : 8; |
2166 | } a; | |
1431042e | 2167 | } GTY ((skip)) u1; |
09f532c9 | 2168 | |
2f78c311 ZW |
2169 | tree size_unit; |
2170 | tree name; | |
2171 | tree context; | |
2172 | tree arguments; /* Also used for DECL_FIELD_OFFSET */ | |
2173 | tree result; /* Also used for DECL_BIT_FIELD_TYPE */ | |
2174 | tree initial; /* Also used for DECL_QUALIFIER */ | |
2175 | tree abstract_origin; | |
2176 | tree assembler_name; | |
2177 | tree section_name; | |
91d231cb | 2178 | tree attributes; |
2f78c311 | 2179 | rtx rtl; /* RTL representation for object. */ |
06ceef4e | 2180 | |
9df2c88c | 2181 | /* In FUNCTION_DECL, if it is inline, holds the saved insn chain. |
770ae6cc | 2182 | In FIELD_DECL, is DECL_FIELD_BIT_OFFSET. |
9df2c88c RK |
2183 | In PARM_DECL, holds an RTL for the stack slot |
2184 | of register where the data was actually passed. | |
2185 | Used by Chill and Java in LABEL_DECL and by C++ and Java in VAR_DECL. */ | |
e2500fed GK |
2186 | union tree_decl_u2 { |
2187 | struct function * GTY ((tag ("FUNCTION_DECL"))) f; | |
2188 | rtx GTY ((tag ("PARM_DECL"))) r; | |
2189 | tree GTY ((tag ("FIELD_DECL"))) t; | |
17211ab5 | 2190 | int GTY ((tag ("VAR_DECL"))) i; |
e2500fed | 2191 | } GTY ((desc ("TREE_CODE((tree) &(%0))"))) u2; |
9df2c88c | 2192 | |
588d3ade AO |
2193 | /* In a FUNCTION_DECL, this is DECL_SAVED_TREE. */ |
2194 | tree saved_tree; | |
2195 | ||
2196 | /* In a FUNCTION_DECL, these are function data which is to be kept | |
2197 | as long as FUNCTION_DECL is kept. */ | |
2198 | tree inlined_fns; | |
2199 | ||
2f78c311 | 2200 | tree vindex; |
3bdf5ad1 | 2201 | HOST_WIDE_INT pointer_alias_set; |
6de9cd9a | 2202 | union alias_var_def *GTY ((skip(""))) alias_var; |
8da1b058 RS |
2203 | /* Points to a structure whose details depend on the language in use. */ |
2204 | struct lang_decl *lang_specific; | |
2205 | }; | |
6de9cd9a DN |
2206 | |
2207 | \f | |
2208 | /* A STATEMENT_LIST chains statements together in GENERIC and GIMPLE. | |
2209 | To reduce overhead, the nodes containing the statements are not trees. | |
2210 | This avoids the overhead of tree_common on all linked list elements. | |
2211 | ||
2212 | Use the interface in tree-iterator.h to access this node. */ | |
2213 | ||
2214 | #define STATEMENT_LIST_HEAD(NODE) \ | |
2215 | (STATEMENT_LIST_CHECK (NODE)->stmt_list.head) | |
2216 | #define STATEMENT_LIST_TAIL(NODE) \ | |
2217 | (STATEMENT_LIST_CHECK (NODE)->stmt_list.tail) | |
2218 | ||
2219 | struct tree_statement_list_node | |
2220 | GTY ((chain_next ("%h.next"), chain_prev ("%h.prev"))) | |
2221 | { | |
2222 | struct tree_statement_list_node *prev; | |
2223 | struct tree_statement_list_node *next; | |
2224 | tree stmt; | |
2225 | }; | |
2226 | ||
2227 | struct tree_statement_list | |
2228 | GTY(()) | |
2229 | { | |
2230 | struct tree_common common; | |
2231 | struct tree_statement_list_node *head; | |
2232 | struct tree_statement_list_node *tail; | |
2233 | }; | |
8da1b058 | 2234 | \f |
e2500fed GK |
2235 | enum tree_node_structure_enum { |
2236 | TS_COMMON, | |
2237 | TS_INT_CST, | |
2238 | TS_REAL_CST, | |
2239 | TS_VECTOR, | |
2240 | TS_STRING, | |
2241 | TS_COMPLEX, | |
2242 | TS_IDENTIFIER, | |
2243 | TS_DECL, | |
2244 | TS_TYPE, | |
2245 | TS_LIST, | |
2246 | TS_VEC, | |
2247 | TS_EXP, | |
6de9cd9a DN |
2248 | TS_SSA_NAME, |
2249 | TS_PHI_NODE, | |
e2500fed | 2250 | TS_BLOCK, |
6de9cd9a | 2251 | TS_STATEMENT_LIST, |
e2500fed GK |
2252 | LAST_TS_ENUM |
2253 | }; | |
2254 | ||
8da1b058 RS |
2255 | /* Define the overall contents of a tree node. |
2256 | It may be any of the structures declared above | |
2257 | for various types of node. */ | |
2258 | ||
e2500fed GK |
2259 | union tree_node GTY ((ptr_alias (union lang_tree_node), |
2260 | desc ("tree_node_structure (&%h)"))) | |
8da1b058 | 2261 | { |
e2500fed GK |
2262 | struct tree_common GTY ((tag ("TS_COMMON"))) common; |
2263 | struct tree_int_cst GTY ((tag ("TS_INT_CST"))) int_cst; | |
2264 | struct tree_real_cst GTY ((tag ("TS_REAL_CST"))) real_cst; | |
2265 | struct tree_vector GTY ((tag ("TS_VECTOR"))) vector; | |
2266 | struct tree_string GTY ((tag ("TS_STRING"))) string; | |
2267 | struct tree_complex GTY ((tag ("TS_COMPLEX"))) complex; | |
2268 | struct tree_identifier GTY ((tag ("TS_IDENTIFIER"))) identifier; | |
2269 | struct tree_decl GTY ((tag ("TS_DECL"))) decl; | |
2270 | struct tree_type GTY ((tag ("TS_TYPE"))) type; | |
2271 | struct tree_list GTY ((tag ("TS_LIST"))) list; | |
2272 | struct tree_vec GTY ((tag ("TS_VEC"))) vec; | |
2273 | struct tree_exp GTY ((tag ("TS_EXP"))) exp; | |
6de9cd9a DN |
2274 | struct tree_ssa_name GTY ((tag ("TS_SSA_NAME"))) ssa_name; |
2275 | struct tree_phi_node GTY ((tag ("TS_PHI_NODE"))) phi; | |
e2500fed | 2276 | struct tree_block GTY ((tag ("TS_BLOCK"))) block; |
6de9cd9a DN |
2277 | struct tree_statement_list GTY ((tag ("TS_STATEMENT_LIST"))) stmt_list; |
2278 | }; | |
1d2a8985 | 2279 | \f |
81b3411c BS |
2280 | /* Standard named or nameless data types of the C compiler. */ |
2281 | ||
2282 | enum tree_index | |
2283 | { | |
2284 | TI_ERROR_MARK, | |
2285 | TI_INTQI_TYPE, | |
2286 | TI_INTHI_TYPE, | |
2287 | TI_INTSI_TYPE, | |
2288 | TI_INTDI_TYPE, | |
2289 | TI_INTTI_TYPE, | |
2290 | ||
2291 | TI_UINTQI_TYPE, | |
2292 | TI_UINTHI_TYPE, | |
2293 | TI_UINTSI_TYPE, | |
2294 | TI_UINTDI_TYPE, | |
2295 | TI_UINTTI_TYPE, | |
41077ce4 | 2296 | |
81b3411c BS |
2297 | TI_INTEGER_ZERO, |
2298 | TI_INTEGER_ONE, | |
f2d1f0ba | 2299 | TI_INTEGER_MINUS_ONE, |
81b3411c BS |
2300 | TI_NULL_POINTER, |
2301 | ||
2302 | TI_SIZE_ZERO, | |
2303 | TI_SIZE_ONE, | |
770ae6cc RK |
2304 | |
2305 | TI_BITSIZE_ZERO, | |
2306 | TI_BITSIZE_ONE, | |
2307 | TI_BITSIZE_UNIT, | |
2308 | ||
5a98fa7b MM |
2309 | TI_PUBLIC, |
2310 | TI_PROTECTED, | |
2311 | TI_PRIVATE, | |
2312 | ||
de7df9eb JM |
2313 | TI_BOOLEAN_FALSE, |
2314 | TI_BOOLEAN_TRUE, | |
2315 | ||
81b3411c BS |
2316 | TI_COMPLEX_INTEGER_TYPE, |
2317 | TI_COMPLEX_FLOAT_TYPE, | |
2318 | TI_COMPLEX_DOUBLE_TYPE, | |
2319 | TI_COMPLEX_LONG_DOUBLE_TYPE, | |
2320 | ||
2321 | TI_FLOAT_TYPE, | |
2322 | TI_DOUBLE_TYPE, | |
2323 | TI_LONG_DOUBLE_TYPE, | |
2324 | ||
a2a919aa KG |
2325 | TI_FLOAT_PTR_TYPE, |
2326 | TI_DOUBLE_PTR_TYPE, | |
2327 | TI_LONG_DOUBLE_PTR_TYPE, | |
2328 | TI_INTEGER_PTR_TYPE, | |
2329 | ||
81b3411c BS |
2330 | TI_VOID_TYPE, |
2331 | TI_PTR_TYPE, | |
2332 | TI_CONST_PTR_TYPE, | |
c9f8536c | 2333 | TI_SIZE_TYPE, |
d1c38823 | 2334 | TI_PID_TYPE, |
81b3411c BS |
2335 | TI_PTRDIFF_TYPE, |
2336 | TI_VA_LIST_TYPE, | |
de7df9eb | 2337 | TI_BOOLEAN_TYPE, |
498c0f27 | 2338 | TI_FILEPTR_TYPE, |
81b3411c | 2339 | |
cbd5937a MM |
2340 | TI_VOID_LIST_NODE, |
2341 | ||
5b47282c GM |
2342 | TI_MAIN_IDENTIFIER, |
2343 | ||
81b3411c BS |
2344 | TI_MAX |
2345 | }; | |
2346 | ||
e2500fed | 2347 | extern GTY(()) tree global_trees[TI_MAX]; |
81b3411c BS |
2348 | |
2349 | #define error_mark_node global_trees[TI_ERROR_MARK] | |
41077ce4 | 2350 | |
81b3411c BS |
2351 | #define intQI_type_node global_trees[TI_INTQI_TYPE] |
2352 | #define intHI_type_node global_trees[TI_INTHI_TYPE] | |
2353 | #define intSI_type_node global_trees[TI_INTSI_TYPE] | |
2354 | #define intDI_type_node global_trees[TI_INTDI_TYPE] | |
2355 | #define intTI_type_node global_trees[TI_INTTI_TYPE] | |
2356 | ||
2357 | #define unsigned_intQI_type_node global_trees[TI_UINTQI_TYPE] | |
2358 | #define unsigned_intHI_type_node global_trees[TI_UINTHI_TYPE] | |
2359 | #define unsigned_intSI_type_node global_trees[TI_UINTSI_TYPE] | |
2360 | #define unsigned_intDI_type_node global_trees[TI_UINTDI_TYPE] | |
2361 | #define unsigned_intTI_type_node global_trees[TI_UINTTI_TYPE] | |
2362 | ||
81b3411c BS |
2363 | #define integer_zero_node global_trees[TI_INTEGER_ZERO] |
2364 | #define integer_one_node global_trees[TI_INTEGER_ONE] | |
f2d1f0ba | 2365 | #define integer_minus_one_node global_trees[TI_INTEGER_MINUS_ONE] |
81b3411c BS |
2366 | #define size_zero_node global_trees[TI_SIZE_ZERO] |
2367 | #define size_one_node global_trees[TI_SIZE_ONE] | |
770ae6cc RK |
2368 | #define bitsize_zero_node global_trees[TI_BITSIZE_ZERO] |
2369 | #define bitsize_one_node global_trees[TI_BITSIZE_ONE] | |
2370 | #define bitsize_unit_node global_trees[TI_BITSIZE_UNIT] | |
2371 | ||
dbbf88d1 | 2372 | /* Base access nodes. */ |
5a98fa7b MM |
2373 | #define access_public_node global_trees[TI_PUBLIC] |
2374 | #define access_protected_node global_trees[TI_PROTECTED] | |
2375 | #define access_private_node global_trees[TI_PRIVATE] | |
dbbf88d1 | 2376 | |
81b3411c BS |
2377 | #define null_pointer_node global_trees[TI_NULL_POINTER] |
2378 | ||
2379 | #define float_type_node global_trees[TI_FLOAT_TYPE] | |
2380 | #define double_type_node global_trees[TI_DOUBLE_TYPE] | |
2381 | #define long_double_type_node global_trees[TI_LONG_DOUBLE_TYPE] | |
2382 | ||
a2a919aa KG |
2383 | #define float_ptr_type_node global_trees[TI_FLOAT_PTR_TYPE] |
2384 | #define double_ptr_type_node global_trees[TI_DOUBLE_PTR_TYPE] | |
2385 | #define long_double_ptr_type_node global_trees[TI_LONG_DOUBLE_PTR_TYPE] | |
2386 | #define integer_ptr_type_node global_trees[TI_INTEGER_PTR_TYPE] | |
2387 | ||
81b3411c BS |
2388 | #define complex_integer_type_node global_trees[TI_COMPLEX_INTEGER_TYPE] |
2389 | #define complex_float_type_node global_trees[TI_COMPLEX_FLOAT_TYPE] | |
2390 | #define complex_double_type_node global_trees[TI_COMPLEX_DOUBLE_TYPE] | |
2391 | #define complex_long_double_type_node global_trees[TI_COMPLEX_LONG_DOUBLE_TYPE] | |
2392 | ||
2393 | #define void_type_node global_trees[TI_VOID_TYPE] | |
fc693822 | 2394 | /* The C type `void *'. */ |
81b3411c | 2395 | #define ptr_type_node global_trees[TI_PTR_TYPE] |
fc693822 | 2396 | /* The C type `const void *'. */ |
81b3411c | 2397 | #define const_ptr_type_node global_trees[TI_CONST_PTR_TYPE] |
c9f8536c MM |
2398 | /* The C type `size_t'. */ |
2399 | #define size_type_node global_trees[TI_SIZE_TYPE] | |
d1c38823 | 2400 | #define pid_type_node global_trees[TI_PID_TYPE] |
81b3411c BS |
2401 | #define ptrdiff_type_node global_trees[TI_PTRDIFF_TYPE] |
2402 | #define va_list_type_node global_trees[TI_VA_LIST_TYPE] | |
498c0f27 JJ |
2403 | /* The C type `FILE *'. */ |
2404 | #define fileptr_type_node global_trees[TI_FILEPTR_TYPE] | |
7145ef21 | 2405 | |
de7df9eb JM |
2406 | #define boolean_type_node global_trees[TI_BOOLEAN_TYPE] |
2407 | #define boolean_false_node global_trees[TI_BOOLEAN_FALSE] | |
2408 | #define boolean_true_node global_trees[TI_BOOLEAN_TRUE] | |
2409 | ||
cbd5937a MM |
2410 | /* The node that should be placed at the end of a parameter list to |
2411 | indicate that the function does not take a variable number of | |
2412 | arguments. The TREE_VALUE will be void_type_node and there will be | |
2413 | no TREE_CHAIN. Language-independent code should not assume | |
2414 | anything else about this node. */ | |
2415 | #define void_list_node global_trees[TI_VOID_LIST_NODE] | |
2416 | ||
5b47282c GM |
2417 | #define main_identifier_node global_trees[TI_MAIN_IDENTIFIER] |
2418 | #define MAIN_NAME_P(NODE) (IDENTIFIER_NODE_CHECK (NODE) == main_identifier_node) | |
2419 | ||
7145ef21 | 2420 | /* An enumeration of the standard C integer types. These must be |
ceeedfc1 NB |
2421 | ordered so that shorter types appear before longer ones, and so |
2422 | that signed types appear before unsigned ones, for the correct | |
2423 | functioning of interpret_integer() in c-lex.c. */ | |
41077ce4 | 2424 | enum integer_type_kind |
7145ef21 MM |
2425 | { |
2426 | itk_char, | |
2427 | itk_signed_char, | |
2428 | itk_unsigned_char, | |
2429 | itk_short, | |
2430 | itk_unsigned_short, | |
2431 | itk_int, | |
2432 | itk_unsigned_int, | |
2433 | itk_long, | |
2434 | itk_unsigned_long, | |
2435 | itk_long_long, | |
2436 | itk_unsigned_long_long, | |
2437 | itk_none | |
2438 | }; | |
2439 | ||
2440 | typedef enum integer_type_kind integer_type_kind; | |
2441 | ||
2442 | /* The standard C integer types. Use integer_type_kind to index into | |
2443 | this array. */ | |
e2500fed | 2444 | extern GTY(()) tree integer_types[itk_none]; |
7145ef21 MM |
2445 | |
2446 | #define char_type_node integer_types[itk_char] | |
2447 | #define signed_char_type_node integer_types[itk_signed_char] | |
2448 | #define unsigned_char_type_node integer_types[itk_unsigned_char] | |
2449 | #define short_integer_type_node integer_types[itk_short] | |
2450 | #define short_unsigned_type_node integer_types[itk_unsigned_short] | |
2451 | #define integer_type_node integer_types[itk_int] | |
2452 | #define unsigned_type_node integer_types[itk_unsigned_int] | |
2453 | #define long_integer_type_node integer_types[itk_long] | |
2454 | #define long_unsigned_type_node integer_types[itk_unsigned_long] | |
2455 | #define long_long_integer_type_node integer_types[itk_long_long] | |
2456 | #define long_long_unsigned_type_node integer_types[itk_unsigned_long_long] | |
dce81a1a JJ |
2457 | \f |
2458 | /* Set to the default thread-local storage (tls) model to use. */ | |
2459 | ||
2460 | enum tls_model { | |
2461 | TLS_MODEL_GLOBAL_DYNAMIC = 1, | |
2462 | TLS_MODEL_LOCAL_DYNAMIC, | |
2463 | TLS_MODEL_INITIAL_EXEC, | |
2464 | TLS_MODEL_LOCAL_EXEC | |
2465 | }; | |
7145ef21 | 2466 | |
dce81a1a | 2467 | extern enum tls_model flag_tls_default; |
25fdb4dc | 2468 | |
81b3411c | 2469 | \f |
f963b5d9 RS |
2470 | /* A pointer-to-function member type looks like: |
2471 | ||
2472 | struct { | |
2473 | __P __pfn; | |
2474 | ptrdiff_t __delta; | |
2475 | }; | |
2476 | ||
2477 | If __pfn is NULL, it is a NULL pointer-to-member-function. | |
2478 | ||
2479 | (Because the vtable is always the first thing in the object, we | |
2480 | don't need its offset.) If the function is virtual, then PFN is | |
2481 | one plus twice the index into the vtable; otherwise, it is just a | |
2482 | pointer to the function. | |
2483 | ||
2484 | Unfortunately, using the lowest bit of PFN doesn't work in | |
2485 | architectures that don't impose alignment requirements on function | |
2486 | addresses, or that use the lowest bit to tell one ISA from another, | |
2487 | for example. For such architectures, we use the lowest bit of | |
2488 | DELTA instead of the lowest bit of the PFN, and DELTA will be | |
2489 | multiplied by 2. */ | |
2490 | ||
2491 | enum ptrmemfunc_vbit_where_t | |
2492 | { | |
2493 | ptrmemfunc_vbit_in_pfn, | |
2494 | ptrmemfunc_vbit_in_delta | |
2495 | }; | |
2496 | \f | |
f837a861 MM |
2497 | #define NULL_TREE (tree) NULL |
2498 | ||
05ac140e | 2499 | extern GTY(()) tree frame_base_decl; |
46c5ad27 | 2500 | extern tree decl_assembler_name (tree); |
8da1b058 | 2501 | |
c5620996 GK |
2502 | /* Compute the number of bytes occupied by 'node'. This routine only |
2503 | looks at TREE_CODE and, if the code is TREE_VEC, TREE_VEC_LENGTH. */ | |
2504 | ||
46c5ad27 | 2505 | extern size_t tree_size (tree); |
c5620996 | 2506 | |
8da1b058 RS |
2507 | /* Lowest level primitive for allocating a node. |
2508 | The TREE_CODE is the only argument. Contents are initialized | |
2509 | to zero except for a few of the common fields. */ | |
2510 | ||
b9dcdee4 JH |
2511 | extern tree make_node_stat (enum tree_code MEM_STAT_DECL); |
2512 | #define make_node(t) make_node_stat (t MEM_STAT_INFO) | |
8da1b058 | 2513 | |
1b70d38a | 2514 | /* Make a copy of a node, with all the same contents. */ |
8da1b058 | 2515 | |
b9dcdee4 JH |
2516 | extern tree copy_node_stat (tree MEM_STAT_DECL); |
2517 | #define copy_node(t) copy_node_stat (t MEM_STAT_INFO) | |
8da1b058 RS |
2518 | |
2519 | /* Make a copy of a chain of TREE_LIST nodes. */ | |
2520 | ||
46c5ad27 | 2521 | extern tree copy_list (tree); |
8da1b058 RS |
2522 | |
2523 | /* Make a TREE_VEC. */ | |
2524 | ||
b9dcdee4 JH |
2525 | extern tree make_tree_vec_stat (int MEM_STAT_DECL); |
2526 | #define make_tree_vec(t) make_tree_vec_stat (t MEM_STAT_INFO) | |
8da1b058 | 2527 | |
6de9cd9a DN |
2528 | /* Tree nodes for SSA analysis. */ |
2529 | ||
2530 | extern tree make_phi_node (tree, int); | |
2531 | extern void init_phinodes (void); | |
2532 | extern void fini_phinodes (void); | |
2533 | extern void release_phi_node (tree); | |
2534 | #ifdef GATHER_STATISTICS | |
2535 | extern void phinodes_print_statistics (void); | |
2536 | #endif | |
2537 | ||
2538 | extern void init_ssanames (void); | |
2539 | extern void fini_ssanames (void); | |
2540 | extern tree make_ssa_name (tree, tree); | |
2541 | extern void release_ssa_name (tree); | |
2542 | #ifdef GATHER_STATISTICS | |
2543 | extern void ssanames_print_statistics (void); | |
2544 | #endif | |
2545 | ||
8da1b058 RS |
2546 | /* Return the (unique) IDENTIFIER_NODE node for a given name. |
2547 | The name is supplied as a char *. */ | |
2548 | ||
46c5ad27 | 2549 | extern tree get_identifier (const char *); |
8da1b058 | 2550 | |
7bb3fbbb RS |
2551 | #if GCC_VERSION >= 3000 |
2552 | #define get_identifier(str) \ | |
2553 | (__builtin_constant_p (str) \ | |
2554 | ? get_identifier_with_length ((str), strlen (str)) \ | |
2555 | : get_identifier (str)) | |
2556 | #endif | |
2557 | ||
2558 | ||
4bad9e39 APB |
2559 | /* Identical to get_identifier, except that the length is assumed |
2560 | known. */ | |
2561 | ||
7bb3fbbb | 2562 | extern tree get_identifier_with_length (const char *, size_t); |
4bad9e39 | 2563 | |
6b9300aa RK |
2564 | /* If an identifier with the name TEXT (a null-terminated string) has |
2565 | previously been referred to, return that node; otherwise return | |
2566 | NULL_TREE. */ | |
2567 | ||
46c5ad27 | 2568 | extern tree maybe_get_identifier (const char *); |
6b9300aa | 2569 | |
8da1b058 RS |
2570 | /* Construct various types of nodes. */ |
2571 | ||
b9daac31 | 2572 | #define build_int_2(LO, HI) \ |
f9e158c3 | 2573 | build_int_2_wide ((unsigned HOST_WIDE_INT) (LO), (HOST_WIDE_INT) (HI)) |
e5d70561 | 2574 | |
46c5ad27 AJ |
2575 | extern tree build (enum tree_code, tree, ...); |
2576 | extern tree build_nt (enum tree_code, ...); | |
2577 | ||
4221057e RH |
2578 | #if GCC_VERSION >= 3000 || __STDC_VERSION__ >= 199901L |
2579 | /* Use preprocessor trickery to map "build" to "buildN" where N is the | |
2580 | expected number of arguments. This is used for both efficiency (no | |
2581 | varargs), and checking (verifying number of passed arguments). */ | |
2582 | #define build(code, ...) \ | |
2583 | _buildN1(build, _buildC1(__VA_ARGS__))(code, __VA_ARGS__) | |
2584 | #define _buildN1(BASE, X) _buildN2(BASE, X) | |
2585 | #define _buildN2(BASE, X) BASE##X | |
2586 | #define _buildC1(...) _buildC2(__VA_ARGS__,9,8,7,6,5,4,3,2,1,0,0) | |
2587 | #define _buildC2(x,a1,a2,a3,a4,a5,a6,a7,a8,a9,c,...) c | |
2588 | #endif | |
2589 | ||
b9dcdee4 JH |
2590 | extern tree build0_stat (enum tree_code, tree MEM_STAT_DECL); |
2591 | #define build0(c,t) build0_stat (c,t MEM_STAT_INFO) | |
2592 | extern tree build1_stat (enum tree_code, tree, tree MEM_STAT_DECL); | |
2593 | #define build1(c,t1,t2) build1_stat (c,t1,t2 MEM_STAT_INFO) | |
2594 | extern tree build2_stat (enum tree_code, tree, tree, tree MEM_STAT_DECL); | |
2595 | #define build2(c,t1,t2,t3) build2_stat (c,t1,t2,t3 MEM_STAT_INFO) | |
2596 | extern tree build3_stat (enum tree_code, tree, tree, tree, tree MEM_STAT_DECL); | |
2597 | #define build3(c,t1,t2,t3,t4) build3_stat (c,t1,t2,t3,t4 MEM_STAT_INFO) | |
2598 | extern tree build4_stat (enum tree_code, tree, tree, tree, tree, | |
2599 | tree MEM_STAT_DECL); | |
2600 | #define build4(c,t1,t2,t3,t4,t5) build4_stat (c,t1,t2,t3,t4,t5 MEM_STAT_INFO) | |
4221057e | 2601 | |
46c5ad27 AJ |
2602 | extern tree build_int_2_wide (unsigned HOST_WIDE_INT, HOST_WIDE_INT); |
2603 | extern tree build_vector (tree, tree); | |
2604 | extern tree build_constructor (tree, tree); | |
2605 | extern tree build_real_from_int_cst (tree, tree); | |
2606 | extern tree build_complex (tree, tree, tree); | |
2607 | extern tree build_string (int, const char *); | |
b9dcdee4 JH |
2608 | extern tree build_tree_list_stat (tree, tree MEM_STAT_DECL); |
2609 | #define build_tree_list(t,q) build_tree_list_stat(t,q MEM_STAT_INFO) | |
2610 | extern tree build_decl_stat (enum tree_code, tree, tree MEM_STAT_DECL); | |
2611 | #define build_decl(c,t,q) build_decl_stat (c,t,q MEM_STAT_INFO) | |
46c5ad27 | 2612 | extern tree build_block (tree, tree, tree, tree, tree); |
6de9cd9a DN |
2613 | extern void annotate_with_file_line (tree, const char *, int); |
2614 | extern void annotate_with_locus (tree, location_t); | |
2615 | extern tree build_empty_stmt (void); | |
8da1b058 RS |
2616 | |
2617 | /* Construct various nodes representing data types. */ | |
2618 | ||
46c5ad27 AJ |
2619 | extern tree make_signed_type (int); |
2620 | extern tree make_unsigned_type (int); | |
2621 | extern void initialize_sizetypes (void); | |
2622 | extern void set_sizetype (tree); | |
2623 | extern void fixup_unsigned_type (tree); | |
22421b79 | 2624 | extern tree build_pointer_type_for_mode (tree, enum machine_mode, bool); |
46c5ad27 | 2625 | extern tree build_pointer_type (tree); |
22421b79 | 2626 | extern tree build_reference_type_for_mode (tree, enum machine_mode, bool); |
46c5ad27 | 2627 | extern tree build_reference_type (tree); |
4a5eab38 PB |
2628 | extern tree build_vector_type_for_mode (tree, enum machine_mode); |
2629 | extern tree build_vector_type (tree innertype, int nunits); | |
46c5ad27 AJ |
2630 | extern tree build_type_no_quals (tree); |
2631 | extern tree build_index_type (tree); | |
2632 | extern tree build_index_2_type (tree, tree); | |
2633 | extern tree build_array_type (tree, tree); | |
2634 | extern tree build_function_type (tree, tree); | |
2635 | extern tree build_function_type_list (tree, ...); | |
43dc123f | 2636 | extern tree build_method_type_directly (tree, tree, tree); |
46c5ad27 AJ |
2637 | extern tree build_method_type (tree, tree); |
2638 | extern tree build_offset_type (tree, tree); | |
2639 | extern tree build_complex_type (tree); | |
2640 | extern tree array_type_nelts (tree); | |
2641 | ||
2642 | extern tree value_member (tree, tree); | |
2643 | extern tree purpose_member (tree, tree); | |
2644 | extern tree binfo_member (tree, tree); | |
fd917e0d | 2645 | |
46c5ad27 AJ |
2646 | extern int attribute_list_equal (tree, tree); |
2647 | extern int attribute_list_contained (tree, tree); | |
2648 | extern int tree_int_cst_equal (tree, tree); | |
2649 | extern int tree_int_cst_lt (tree, tree); | |
2650 | extern int tree_int_cst_compare (tree, tree); | |
2651 | extern int host_integerp (tree, int); | |
2652 | extern HOST_WIDE_INT tree_low_cst (tree, int); | |
2653 | extern int tree_int_cst_msb (tree); | |
2654 | extern int tree_int_cst_sgn (tree); | |
2655 | extern int tree_expr_nonnegative_p (tree); | |
2656 | extern int rtl_expr_nonnegative_p (rtx); | |
2657 | extern tree get_inner_array_type (tree); | |
12cfc830 | 2658 | |
f837a861 MM |
2659 | /* From expmed.c. Since rtl.h is included after tree.h, we can't |
2660 | put the prototype here. Rtl.h does declare the prototype if | |
2661 | tree.h had been included. */ | |
2662 | ||
46c5ad27 | 2663 | extern tree make_tree (tree, rtx); |
8da1b058 | 2664 | \f |
bad1b4ba RK |
2665 | /* Return a type like TTYPE except that its TYPE_ATTRIBUTES |
2666 | is ATTRIBUTE. | |
2667 | ||
2668 | Such modified types already made are recorded so that duplicates | |
2ba84f36 | 2669 | are not made. */ |
bad1b4ba | 2670 | |
46c5ad27 AJ |
2671 | extern tree build_type_attribute_variant (tree, tree); |
2672 | extern tree build_decl_attribute_variant (tree, tree); | |
bad1b4ba | 2673 | |
91d231cb JM |
2674 | /* Structure describing an attribute and a function to handle it. */ |
2675 | struct attribute_spec | |
2676 | { | |
2677 | /* The name of the attribute (without any leading or trailing __), | |
2678 | or NULL to mark the end of a table of attributes. */ | |
8b60264b | 2679 | const char *const name; |
91d231cb | 2680 | /* The minimum length of the list of arguments of the attribute. */ |
8b60264b | 2681 | const int min_length; |
91d231cb JM |
2682 | /* The maximum length of the list of arguments of the attribute |
2683 | (-1 for no maximum). */ | |
8b60264b | 2684 | const int max_length; |
91d231cb JM |
2685 | /* Whether this attribute requires a DECL. If it does, it will be passed |
2686 | from types of DECLs, function return types and array element types to | |
2687 | the DECLs, function types and array types respectively; but when | |
2688 | applied to a type in any other circumstances, it will be ignored with | |
2689 | a warning. (If greater control is desired for a given attribute, | |
2690 | this should be false, and the flags argument to the handler may be | |
2691 | used to gain greater control in that case.) */ | |
8b60264b | 2692 | const bool decl_required; |
91d231cb JM |
2693 | /* Whether this attribute requires a type. If it does, it will be passed |
2694 | from a DECL to the type of that DECL. */ | |
8b60264b | 2695 | const bool type_required; |
91d231cb JM |
2696 | /* Whether this attribute requires a function (or method) type. If it does, |
2697 | it will be passed from a function pointer type to the target type, | |
2698 | and from a function return type (which is not itself a function | |
2699 | pointer type) to the function type. */ | |
8b60264b | 2700 | const bool function_type_required; |
91d231cb JM |
2701 | /* Function to handle this attribute. NODE points to the node to which |
2702 | the attribute is to be applied. If a DECL, it should be modified in | |
2703 | place; if a TYPE, a copy should be created. NAME is the name of the | |
2704 | attribute (possibly with leading or trailing __). ARGS is the TREE_LIST | |
2705 | of the arguments (which may be NULL). FLAGS gives further information | |
2706 | about the context of the attribute. Afterwards, the attributes will | |
2707 | be added to the DECL_ATTRIBUTES or TYPE_ATTRIBUTES, as appropriate, | |
2708 | unless *NO_ADD_ATTRS is set to true (which should be done on error, | |
2709 | as well as in any other cases when the attributes should not be added | |
2710 | to the DECL or TYPE). Depending on FLAGS, any attributes to be | |
2711 | applied to another type or DECL later may be returned; | |
2712 | otherwise the return value should be NULL_TREE. This pointer may be | |
2713 | NULL if no special handling is required beyond the checks implied | |
2714 | by the rest of this structure. */ | |
46c5ad27 AJ |
2715 | tree (*const handler) (tree *node, tree name, tree args, |
2716 | int flags, bool *no_add_attrs); | |
91d231cb JM |
2717 | }; |
2718 | ||
91d231cb JM |
2719 | /* Flags that may be passed in the third argument of decl_attributes, and |
2720 | to handler functions for attributes. */ | |
2721 | enum attribute_flags | |
2722 | { | |
2723 | /* The type passed in is the type of a DECL, and any attributes that | |
2724 | should be passed in again to be applied to the DECL rather than the | |
2725 | type should be returned. */ | |
2726 | ATTR_FLAG_DECL_NEXT = 1, | |
2727 | /* The type passed in is a function return type, and any attributes that | |
2728 | should be passed in again to be applied to the function type rather | |
2729 | than the return type should be returned. */ | |
2730 | ATTR_FLAG_FUNCTION_NEXT = 2, | |
2731 | /* The type passed in is an array element type, and any attributes that | |
2732 | should be passed in again to be applied to the array type rather | |
2733 | than the element type should be returned. */ | |
2734 | ATTR_FLAG_ARRAY_NEXT = 4, | |
2735 | /* The type passed in is a structure, union or enumeration type being | |
2736 | created, and should be modified in place. */ | |
6431177a JM |
2737 | ATTR_FLAG_TYPE_IN_PLACE = 8, |
2738 | /* The attributes are being applied by default to a library function whose | |
2739 | name indicates known behavior, and should be silently ignored if they | |
2740 | are not in fact compatible with the function type. */ | |
2741 | ATTR_FLAG_BUILT_IN = 16 | |
91d231cb JM |
2742 | }; |
2743 | ||
501990bb NB |
2744 | /* Default versions of target-overridable functions. */ |
2745 | ||
46c5ad27 AJ |
2746 | extern tree merge_decl_attributes (tree, tree); |
2747 | extern tree merge_type_attributes (tree, tree); | |
2748 | extern void default_register_cpp_builtins (struct cpp_reader *); | |
d9525bec BK |
2749 | |
2750 | /* Split a list of declspecs and attributes into two. */ | |
2751 | ||
4682ae04 | 2752 | extern void split_specs_attrs (tree, tree *, tree *); |
d9525bec BK |
2753 | |
2754 | /* Strip attributes from a list of combined specs and attrs. */ | |
2755 | ||
4682ae04 | 2756 | extern tree strip_attrs (tree); |
d9525bec | 2757 | |
9c130398 DE |
2758 | /* Return 1 if an attribute and its arguments are valid for a decl or type. */ |
2759 | ||
46c5ad27 | 2760 | extern int valid_machine_attribute (tree, tree, tree, tree); |
9c130398 | 2761 | |
0e9e1e0a | 2762 | /* Given a tree node and a string, return nonzero if the tree node is |
9c130398 DE |
2763 | a valid attribute name for the string. */ |
2764 | ||
46c5ad27 | 2765 | extern int is_attribute_p (const char *, tree); |
9c130398 DE |
2766 | |
2767 | /* Given an attribute name and a list of attributes, return the list element | |
2768 | of the attribute or NULL_TREE if not found. */ | |
2769 | ||
46c5ad27 | 2770 | extern tree lookup_attribute (const char *, tree); |
6cb3d314 DE |
2771 | |
2772 | /* Given two attributes lists, return a list of their union. */ | |
2773 | ||
46c5ad27 | 2774 | extern tree merge_attributes (tree, tree); |
9c130398 | 2775 | |
672a6f42 NB |
2776 | #ifdef TARGET_DLLIMPORT_DECL_ATTRIBUTES |
2777 | /* Given two Windows decl attributes lists, possibly including | |
2778 | dllimport, return a list of their union . */ | |
46c5ad27 | 2779 | extern tree merge_dllimport_decl_attributes (tree, tree); |
672a6f42 NB |
2780 | #endif |
2781 | ||
896c3aa3 JM |
2782 | /* Check whether CAND is suitable to be returned from get_qualified_type |
2783 | (BASE, TYPE_QUALS). */ | |
2784 | ||
2785 | extern bool check_qualified_type (tree, tree, int); | |
2786 | ||
5101b304 MM |
2787 | /* Return a version of the TYPE, qualified as indicated by the |
2788 | TYPE_QUALS, if one exists. If no qualified version exists yet, | |
2789 | return NULL_TREE. */ | |
2790 | ||
46c5ad27 | 2791 | extern tree get_qualified_type (tree, int); |
5101b304 MM |
2792 | |
2793 | /* Like get_qualified_type, but creates the type if it does not | |
2794 | exist. This function never returns NULL_TREE. */ | |
3932261a | 2795 | |
46c5ad27 | 2796 | extern tree build_qualified_type (tree, int); |
3932261a MM |
2797 | |
2798 | /* Like build_qualified_type, but only deals with the `const' and | |
2799 | `volatile' qualifiers. This interface is retained for backwards | |
14b493d6 | 2800 | compatibility with the various front-ends; new code should use |
3932261a | 2801 | build_qualified_type instead. */ |
8da1b058 | 2802 | |
3932261a | 2803 | #define build_type_variant(TYPE, CONST_P, VOLATILE_P) \ |
b9daac31 | 2804 | build_qualified_type ((TYPE), \ |
3932261a MM |
2805 | ((CONST_P) ? TYPE_QUAL_CONST : 0) \ |
2806 | | ((VOLATILE_P) ? TYPE_QUAL_VOLATILE : 0)) | |
8da1b058 | 2807 | |
43100b14 RS |
2808 | /* Make a copy of a type node. */ |
2809 | ||
46c5ad27 | 2810 | extern tree build_type_copy (tree); |
43100b14 | 2811 | |
4977bab6 ZW |
2812 | /* Finish up a builtin RECORD_TYPE. Give it a name and provide its |
2813 | fields. Optionally specify an alignment, and then lsy it out. */ | |
2814 | ||
46c5ad27 AJ |
2815 | extern void finish_builtin_struct (tree, const char *, |
2816 | tree, tree); | |
4977bab6 | 2817 | |
8da1b058 | 2818 | /* Given a ..._TYPE node, calculate the TYPE_SIZE, TYPE_SIZE_UNIT, |
9328904c MM |
2819 | TYPE_ALIGN and TYPE_MODE fields. If called more than once on one |
2820 | node, does nothing except for the first time. */ | |
8da1b058 | 2821 | |
46c5ad27 | 2822 | extern void layout_type (tree); |
8da1b058 | 2823 | |
9328904c MM |
2824 | /* These functions allow a front-end to perform a manual layout of a |
2825 | RECORD_TYPE. (For instance, if the placement of subsequent fields | |
2826 | depends on the placement of fields so far.) Begin by calling | |
770ae6cc | 2827 | start_record_layout. Then, call place_field for each of the |
9328904c MM |
2828 | fields. Then, call finish_record_layout. See layout_type for the |
2829 | default way in which these functions are used. */ | |
2830 | ||
defd0dea | 2831 | typedef struct record_layout_info_s |
9328904c MM |
2832 | { |
2833 | /* The RECORD_TYPE that we are laying out. */ | |
2834 | tree t; | |
770ae6cc RK |
2835 | /* The offset into the record so far, in bytes, not including bits in |
2836 | BITPOS. */ | |
2837 | tree offset; | |
2838 | /* The last known alignment of SIZE. */ | |
2839 | unsigned int offset_align; | |
2840 | /* The bit position within the last OFFSET_ALIGN bits, in bits. */ | |
2841 | tree bitpos; | |
9328904c MM |
2842 | /* The alignment of the record so far, in bits. */ |
2843 | unsigned int record_align; | |
78d55cc8 JM |
2844 | /* The alignment of the record so far, ignoring #pragma pack and |
2845 | __attribute__ ((packed)), in bits. */ | |
770ae6cc | 2846 | unsigned int unpacked_align; |
f913c102 AO |
2847 | /* The previous field layed out. */ |
2848 | tree prev_field; | |
9328904c MM |
2849 | /* The static variables (i.e., class variables, as opposed to |
2850 | instance variables) encountered in T. */ | |
2851 | tree pending_statics; | |
e4850f36 DR |
2852 | /* Bits remaining in the current alignment group */ |
2853 | int remaining_in_alignment; | |
78d55cc8 JM |
2854 | /* True if we've seen a packed field that didn't have normal |
2855 | alignment anyway. */ | |
9328904c | 2856 | int packed_maybe_necessary; |
770ae6cc | 2857 | } *record_layout_info; |
9328904c | 2858 | |
46c5ad27 AJ |
2859 | extern void set_lang_adjust_rli (void (*) (record_layout_info)); |
2860 | extern record_layout_info start_record_layout (tree); | |
2861 | extern tree bit_from_pos (tree, tree); | |
2862 | extern tree byte_from_pos (tree, tree); | |
2863 | extern void pos_from_bit (tree *, tree *, unsigned int, tree); | |
2864 | extern void normalize_offset (tree *, tree *, unsigned int); | |
2865 | extern tree rli_size_unit_so_far (record_layout_info); | |
2866 | extern tree rli_size_so_far (record_layout_info); | |
2867 | extern void normalize_rli (record_layout_info); | |
2868 | extern void place_field (record_layout_info, tree); | |
2869 | extern void compute_record_mode (tree); | |
2870 | extern void finish_record_layout (record_layout_info, int); | |
9328904c | 2871 | |
8da1b058 RS |
2872 | /* Given a hashcode and a ..._TYPE node (for which the hashcode was made), |
2873 | return a canonicalized ..._TYPE node, so that duplicates are not made. | |
2874 | How the hash code is computed is up to the caller, as long as any two | |
2875 | callers that could hash identical-looking type nodes agree. */ | |
2876 | ||
46c5ad27 | 2877 | extern tree type_hash_canon (unsigned int, tree); |
8da1b058 RS |
2878 | |
2879 | /* Given a VAR_DECL, PARM_DECL, RESULT_DECL or FIELD_DECL node, | |
2880 | calculates the DECL_SIZE, DECL_SIZE_UNIT, DECL_ALIGN and DECL_MODE | |
2881 | fields. Call this only once for any given decl node. | |
2882 | ||
2883 | Second argument is the boundary that this field can be assumed to | |
2884 | be starting at (in bits). Zero means it can be assumed aligned | |
2885 | on any boundary that may be needed. */ | |
2886 | ||
46c5ad27 | 2887 | extern void layout_decl (tree, unsigned); |
8da1b058 | 2888 | |
72c602fc RK |
2889 | /* Return the mode for data of a given size SIZE and mode class CLASS. |
2890 | If LIMIT is nonzero, then don't use modes bigger than MAX_FIXED_MODE_SIZE. | |
2891 | The value is BLKmode if no other mode is found. This is like | |
2892 | mode_for_size, but is passed a tree. */ | |
2893 | ||
46c5ad27 | 2894 | extern enum machine_mode mode_for_size_tree (tree, enum mode_class, int); |
72c602fc | 2895 | |
8da1b058 RS |
2896 | /* Return an expr equal to X but certainly not valid as an lvalue. */ |
2897 | ||
46c5ad27 AJ |
2898 | extern tree non_lvalue (tree); |
2899 | extern tree pedantic_non_lvalue (tree); | |
2900 | ||
2901 | extern tree convert (tree, tree); | |
2902 | extern unsigned int expr_align (tree); | |
2903 | extern tree expr_first (tree); | |
2904 | extern tree expr_last (tree); | |
6de9cd9a | 2905 | extern tree expr_only (tree); |
46c5ad27 AJ |
2906 | extern tree size_in_bytes (tree); |
2907 | extern HOST_WIDE_INT int_size_in_bytes (tree); | |
2908 | extern tree bit_position (tree); | |
2909 | extern HOST_WIDE_INT int_bit_position (tree); | |
2910 | extern tree byte_position (tree); | |
2911 | extern HOST_WIDE_INT int_byte_position (tree); | |
fed3cef0 RK |
2912 | |
2913 | /* Define data structures, macros, and functions for handling sizes | |
2914 | and the various types used to represent sizes. */ | |
2915 | ||
2916 | enum size_type_kind | |
2917 | { | |
2ba84f36 KH |
2918 | SIZETYPE, /* Normal representation of sizes in bytes. */ |
2919 | SSIZETYPE, /* Signed representation of sizes in bytes. */ | |
fed3cef0 RK |
2920 | USIZETYPE, /* Unsigned representation of sizes in bytes. */ |
2921 | BITSIZETYPE, /* Normal representation of sizes in bits. */ | |
2922 | SBITSIZETYPE, /* Signed representation of sizes in bits. */ | |
a98ebe2e | 2923 | UBITSIZETYPE, /* Unsigned representation of sizes in bits. */ |
fed3cef0 RK |
2924 | TYPE_KIND_LAST}; |
2925 | ||
e2500fed | 2926 | extern GTY(()) tree sizetype_tab[(int) TYPE_KIND_LAST]; |
fed3cef0 RK |
2927 | |
2928 | #define sizetype sizetype_tab[(int) SIZETYPE] | |
2929 | #define bitsizetype sizetype_tab[(int) BITSIZETYPE] | |
2930 | #define ssizetype sizetype_tab[(int) SSIZETYPE] | |
2931 | #define usizetype sizetype_tab[(int) USIZETYPE] | |
2932 | #define sbitsizetype sizetype_tab[(int) SBITSIZETYPE] | |
2933 | #define ubitsizetype sizetype_tab[(int) UBITSIZETYPE] | |
2934 | ||
46c5ad27 AJ |
2935 | extern tree size_binop (enum tree_code, tree, tree); |
2936 | extern tree size_diffop (tree, tree); | |
2937 | extern tree size_int_wide (HOST_WIDE_INT, enum size_type_kind); | |
2938 | extern tree size_int_type_wide (HOST_WIDE_INT, tree); | |
06ceef4e | 2939 | |
fed3cef0 RK |
2940 | #define size_int_type(L, T) size_int_type_wide ((HOST_WIDE_INT) (L), T) |
2941 | #define size_int(L) size_int_wide ((HOST_WIDE_INT) (L), SIZETYPE) | |
2942 | #define ssize_int(L) size_int_wide ((HOST_WIDE_INT) (L), SSIZETYPE) | |
2943 | #define bitsize_int(L) size_int_wide ((HOST_WIDE_INT) (L), BITSIZETYPE) | |
2944 | #define sbitsize_int(L) size_int_wide ((HOST_WIDE_INT) (L), SBITSIZETYPE) | |
f8dac6eb | 2945 | |
46c5ad27 AJ |
2946 | extern tree round_up (tree, int); |
2947 | extern tree round_down (tree, int); | |
2948 | extern tree get_pending_sizes (void); | |
46c5ad27 AJ |
2949 | extern void put_pending_size (tree); |
2950 | extern void put_pending_sizes (tree); | |
8da1b058 RS |
2951 | |
2952 | /* Type for sizes of data-type. */ | |
2953 | ||
f8dac6eb R |
2954 | #define BITS_PER_UNIT_LOG \ |
2955 | ((BITS_PER_UNIT > 1) + (BITS_PER_UNIT > 2) + (BITS_PER_UNIT > 4) \ | |
2956 | + (BITS_PER_UNIT > 8) + (BITS_PER_UNIT > 16) + (BITS_PER_UNIT > 32) \ | |
2957 | + (BITS_PER_UNIT > 64) + (BITS_PER_UNIT > 128) + (BITS_PER_UNIT > 256)) | |
2958 | ||
2ba84f36 | 2959 | /* If nonzero, an upper limit on alignment of structure fields, in bits. */ |
729a2125 | 2960 | extern unsigned int maximum_field_alignment; |
8294accf | 2961 | |
0e9e1e0a | 2962 | /* If nonzero, the alignment of a bitstring or (power-)set value, in bits. */ |
729a2125 | 2963 | extern unsigned int set_alignment; |
8294accf | 2964 | |
8da1b058 RS |
2965 | /* Concatenate two lists (chains of TREE_LIST nodes) X and Y |
2966 | by making the last node in X point to Y. | |
2967 | Returns X, except if X is 0 returns Y. */ | |
2968 | ||
46c5ad27 | 2969 | extern tree chainon (tree, tree); |
8da1b058 RS |
2970 | |
2971 | /* Make a new TREE_LIST node from specified PURPOSE, VALUE and CHAIN. */ | |
2972 | ||
b9dcdee4 JH |
2973 | extern tree tree_cons_stat (tree, tree, tree MEM_STAT_DECL); |
2974 | #define tree_cons(t,q,w) tree_cons_stat (t,q,w MEM_STAT_INFO) | |
8da1b058 RS |
2975 | |
2976 | /* Return the last tree node in a chain. */ | |
2977 | ||
46c5ad27 | 2978 | extern tree tree_last (tree); |
8da1b058 RS |
2979 | |
2980 | /* Reverse the order of elements in a chain, and return the new head. */ | |
2981 | ||
46c5ad27 | 2982 | extern tree nreverse (tree); |
8da1b058 RS |
2983 | |
2984 | /* Returns the length of a chain of nodes | |
2985 | (number of chain pointers to follow before reaching a null pointer). */ | |
2986 | ||
46c5ad27 | 2987 | extern int list_length (tree); |
8da1b058 | 2988 | |
c3b247b4 JM |
2989 | /* Returns the number of FIELD_DECLs in a type. */ |
2990 | ||
46c5ad27 | 2991 | extern int fields_length (tree); |
c3b247b4 | 2992 | |
27b41650 KG |
2993 | /* Given an initializer INIT, return TRUE if INIT is zero or some |
2994 | aggregate of zeros. Otherwise return FALSE. */ | |
2995 | ||
46c5ad27 | 2996 | extern bool initializer_zerop (tree); |
27b41650 | 2997 | |
6de9cd9a DN |
2998 | extern void categorize_ctor_elements (tree, HOST_WIDE_INT *, HOST_WIDE_INT *); |
2999 | extern HOST_WIDE_INT count_type_elements (tree); | |
40209195 JM |
3000 | extern int mostly_zeros_p (tree); |
3001 | ||
6de9cd9a DN |
3002 | /* add_var_to_bind_expr (bind_expr, var) binds var to bind_expr. */ |
3003 | ||
3004 | extern void add_var_to_bind_expr (tree, tree); | |
3005 | ||
8da1b058 RS |
3006 | /* integer_zerop (tree x) is nonzero if X is an integer constant of value 0 */ |
3007 | ||
46c5ad27 | 3008 | extern int integer_zerop (tree); |
8da1b058 RS |
3009 | |
3010 | /* integer_onep (tree x) is nonzero if X is an integer constant of value 1 */ | |
3011 | ||
46c5ad27 | 3012 | extern int integer_onep (tree); |
8da1b058 RS |
3013 | |
3014 | /* integer_all_onesp (tree x) is nonzero if X is an integer constant | |
3015 | all of whose significant bits are 1. */ | |
3016 | ||
46c5ad27 | 3017 | extern int integer_all_onesp (tree); |
8da1b058 RS |
3018 | |
3019 | /* integer_pow2p (tree x) is nonzero is X is an integer constant with | |
3020 | exactly one bit 1. */ | |
3021 | ||
46c5ad27 | 3022 | extern int integer_pow2p (tree); |
8da1b058 | 3023 | |
4977bab6 ZW |
3024 | /* integer_nonzerop (tree x) is nonzero if X is an integer constant |
3025 | with a nonzero value. */ | |
3026 | ||
46c5ad27 | 3027 | extern int integer_nonzerop (tree); |
4977bab6 | 3028 | |
8da1b058 RS |
3029 | /* staticp (tree x) is nonzero if X is a reference to data allocated |
3030 | at a fixed address in memory. */ | |
3031 | ||
46c5ad27 | 3032 | extern int staticp (tree); |
8da1b058 | 3033 | |
8da1b058 RS |
3034 | /* save_expr (EXP) returns an expression equivalent to EXP |
3035 | but it can be used multiple times within context CTX | |
3036 | and only evaluate EXP once. */ | |
3037 | ||
46c5ad27 | 3038 | extern tree save_expr (tree); |
8da1b058 | 3039 | |
a9ecacf6 OH |
3040 | /* Look inside EXPR and into any simple arithmetic operations. Return |
3041 | the innermost non-arithmetic node. */ | |
3042 | ||
46c5ad27 | 3043 | extern tree skip_simple_arithmetic (tree); |
a9ecacf6 | 3044 | |
b7f6588d JM |
3045 | /* Returns the index of the first non-tree operand for CODE, or the number |
3046 | of operands if all are trees. */ | |
3047 | ||
46c5ad27 | 3048 | extern int first_rtl_op (enum tree_code); |
b7f6588d | 3049 | |
e2500fed GK |
3050 | /* Return which tree structure is used by T. */ |
3051 | ||
46c5ad27 | 3052 | enum tree_node_structure_enum tree_node_structure (tree); |
e2500fed | 3053 | |
679163cf | 3054 | /* unsave_expr (EXP) returns an expression equivalent to EXP but it |
582db8e4 | 3055 | can be used multiple times and will evaluate EXP in its entirety |
679163cf MS |
3056 | each time. */ |
3057 | ||
46c5ad27 | 3058 | extern tree unsave_expr (tree); |
679163cf | 3059 | |
14b493d6 | 3060 | /* Reset EXP in place so that it can be expanded again. Does not |
582db8e4 MM |
3061 | recurse into subtrees. */ |
3062 | ||
46c5ad27 | 3063 | extern void unsave_expr_1 (tree); |
582db8e4 | 3064 | |
194c7c45 RH |
3065 | /* Return 0 if it is safe to evaluate EXPR multiple times, |
3066 | return 1 if it is safe if EXPR is unsaved afterward, or | |
3067 | return 2 if it is completely unsafe. */ | |
46c5ad27 | 3068 | extern int unsafe_for_reeval (tree); |
3fe30ff6 | 3069 | |
7380d707 RK |
3070 | /* Return 1 if EXP contains a PLACEHOLDER_EXPR; i.e., if it represents a size |
3071 | or offset that depends on a field within a record. | |
3072 | ||
3073 | Note that we only allow such expressions within simple arithmetic | |
3074 | or a COND_EXPR. */ | |
3075 | ||
46c5ad27 | 3076 | extern bool contains_placeholder_p (tree); |
7a6cdb44 RK |
3077 | |
3078 | /* This macro calls the above function but short-circuits the common | |
3079 | case of a constant to save time. Also check for null. */ | |
3080 | ||
3081 | #define CONTAINS_PLACEHOLDER_P(EXP) \ | |
3082 | ((EXP) != 0 && ! TREE_CONSTANT (EXP) && contains_placeholder_p (EXP)) | |
3083 | ||
3084 | /* Return 1 if any part of the computation of TYPE involves a PLACEHOLDER_EXPR. | |
3085 | This includes size, bounds, qualifiers (for QUAL_UNION_TYPE) and field | |
3086 | positions. */ | |
3087 | ||
46c5ad27 | 3088 | extern bool type_contains_placeholder_p (tree); |
7380d707 | 3089 | |
b7f6588d JM |
3090 | /* Return 1 if EXP contains any expressions that produce cleanups for an |
3091 | outer scope to deal with. Used by fold. */ | |
3092 | ||
46c5ad27 | 3093 | extern int has_cleanups (tree); |
b7f6588d | 3094 | |
7380d707 RK |
3095 | /* Given a tree EXP, a FIELD_DECL F, and a replacement value R, |
3096 | return a tree with all occurrences of references to F in a | |
3097 | PLACEHOLDER_EXPR replaced by R. Note that we assume here that EXP | |
3098 | contains only arithmetic expressions. */ | |
3099 | ||
46c5ad27 | 3100 | extern tree substitute_in_expr (tree, tree, tree); |
7380d707 | 3101 | |
6fce44af RK |
3102 | /* This macro calls the above function but short-circuits the common |
3103 | case of a constant to save time and also checks for NULL. */ | |
3104 | ||
3105 | #define SUBSTITUTE_IN_EXPR(EXP, F, R) \ | |
3106 | ((EXP) == 0 || TREE_CONSTANT (EXP) ? (EXP) : substitute_in_expr (EXP, F, R)) | |
3107 | ||
3108 | /* Similar, but look for a PLACEHOLDER_EXPR in EXP and find a replacement | |
3109 | for it within OBJ, a tree that is an object or a chain of references. */ | |
3110 | ||
3111 | extern tree substitute_placeholder_in_expr (tree, tree); | |
3112 | ||
3113 | /* This macro calls the above function but short-circuits the common | |
3114 | case of a constant to save time and also checks for NULL. */ | |
3115 | ||
3116 | #define SUBSTITUTE_PLACEHOLDER_IN_EXPR(EXP, OBJ) \ | |
3117 | ((EXP) == 0 || TREE_CONSTANT (EXP) ? (EXP) \ | |
3118 | : substitute_placeholder_in_expr (EXP, OBJ)) | |
3119 | ||
90ca31be RS |
3120 | /* variable_size (EXP) is like save_expr (EXP) except that it |
3121 | is for the special case of something that is part of a | |
3122 | variable size for a data type. It makes special arrangements | |
3123 | to compute the value at the right time when the data type | |
3124 | belongs to a function parameter. */ | |
3125 | ||
46c5ad27 | 3126 | extern tree variable_size (tree); |
90ca31be | 3127 | |
1c9766da RK |
3128 | /* Given a type T, force elaboration of any SAVE_EXPRs used in the definition |
3129 | of that type. */ | |
3130 | ||
3131 | extern void force_type_save_exprs (tree); | |
3132 | ||
dcc24678 | 3133 | /* stabilize_reference (EXP) returns a reference equivalent to EXP |
8da1b058 RS |
3134 | but it can be used multiple times |
3135 | and only evaluate the subexpressions once. */ | |
3136 | ||
46c5ad27 | 3137 | extern tree stabilize_reference (tree); |
8da1b058 | 3138 | |
1c8b10bb RK |
3139 | /* Subroutine of stabilize_reference; this is called for subtrees of |
3140 | references. Any expression with side-effects must be put in a SAVE_EXPR | |
3141 | to ensure that it is only evaluated once. */ | |
3142 | ||
46c5ad27 | 3143 | extern tree stabilize_reference_1 (tree); |
1c8b10bb | 3144 | |
8da1b058 RS |
3145 | /* Return EXP, stripped of any conversions to wider types |
3146 | in such a way that the result of converting to type FOR_TYPE | |
3147 | is the same as if EXP were converted to FOR_TYPE. | |
3148 | If FOR_TYPE is 0, it signifies EXP's type. */ | |
3149 | ||
46c5ad27 | 3150 | extern tree get_unwidened (tree, tree); |
8da1b058 RS |
3151 | |
3152 | /* Return OP or a simpler expression for a narrower value | |
3153 | which can be sign-extended or zero-extended to give back OP. | |
3154 | Store in *UNSIGNEDP_PTR either 1 if the value should be zero-extended | |
3155 | or 0 if the value should be sign-extended. */ | |
3156 | ||
46c5ad27 | 3157 | extern tree get_narrower (tree, int *); |
8da1b058 | 3158 | |
8da1b058 RS |
3159 | /* Given an expression EXP that may be a COMPONENT_REF or an ARRAY_REF, |
3160 | look for nested component-refs or array-refs at constant positions | |
3161 | and find the ultimate containing object, which is returned. */ | |
3162 | ||
46c5ad27 AJ |
3163 | extern tree get_inner_reference (tree, HOST_WIDE_INT *, HOST_WIDE_INT *, |
3164 | tree *, enum machine_mode *, int *, int *); | |
8da1b058 | 3165 | |
ed239f5a RK |
3166 | /* Return 1 if T is an expression that get_inner_reference handles. */ |
3167 | ||
46c5ad27 | 3168 | extern int handled_component_p (tree); |
ed239f5a | 3169 | |
140b60b4 MM |
3170 | /* Given a DECL or TYPE, return the scope in which it was declared, or |
3171 | NUL_TREE if there is no containing scope. */ | |
3172 | ||
46c5ad27 | 3173 | extern tree get_containing_scope (tree); |
140b60b4 | 3174 | |
8da1b058 RS |
3175 | /* Return the FUNCTION_DECL which provides this _DECL with its context, |
3176 | or zero if none. */ | |
46c5ad27 | 3177 | extern tree decl_function_context (tree); |
8da1b058 | 3178 | |
3635a54b RK |
3179 | /* Return the RECORD_TYPE, UNION_TYPE, or QUAL_UNION_TYPE which provides |
3180 | this _DECL with its context, or zero if none. */ | |
46c5ad27 | 3181 | extern tree decl_type_context (tree); |
8da1b058 | 3182 | |
a3c11cd3 | 3183 | /* Return 1 if EXPR is the real constant zero. */ |
46c5ad27 | 3184 | extern int real_zerop (tree); |
8da1b058 RS |
3185 | \f |
3186 | /* Declare commonly used variables for tree structure. */ | |
3187 | ||
4812480a JM |
3188 | /* Nonzero means lvalues are limited to those valid in pedantic ANSI C. |
3189 | Zero means allow extended lvalues. */ | |
3190 | ||
3191 | extern int pedantic_lvalues; | |
3192 | ||
8da1b058 RS |
3193 | /* Nonzero means can safely call expand_expr now; |
3194 | otherwise layout_type puts variable sizes onto `pending_sizes' instead. */ | |
3195 | ||
3196 | extern int immediate_size_expand; | |
3197 | ||
2ba84f36 | 3198 | /* Points to the FUNCTION_DECL of the function whose body we are reading. */ |
8da1b058 | 3199 | |
e2500fed | 3200 | extern GTY(()) tree current_function_decl; |
8da1b058 | 3201 | |
00262c8a | 3202 | /* Nonzero means a FUNC_BEGIN label was emitted. */ |
e2500fed | 3203 | extern GTY(()) tree current_function_func_begin_label; |
00262c8a | 3204 | |
6de9cd9a DN |
3205 | /* A DECL for the current file-scope context. When using IMA, this heads a |
3206 | chain of FILE_DECLs; currently only C uses it. */ | |
3207 | ||
3208 | extern GTY(()) tree current_file_decl; | |
3209 | ||
8da1b058 RS |
3210 | /* Nonzero means all ..._TYPE nodes should be allocated permanently. */ |
3211 | ||
3212 | extern int all_types_permanent; | |
3213 | ||
0eff02cd KG |
3214 | /* Exit a binding level. This function is provided by each language |
3215 | frontend. */ | |
3216 | extern tree poplevel (int, int, int); | |
3217 | ||
26db82d8 BS |
3218 | /* Declare a predefined function. Return the declaration. This function is |
3219 | provided by each language frontend. */ | |
46c5ad27 AJ |
3220 | extern tree builtin_function (const char *, tree, int, enum built_in_class, |
3221 | const char *, tree); | |
8da1b058 | 3222 | \f |
143f1945 | 3223 | /* In tree.c */ |
2aab7ceb | 3224 | extern unsigned crc32_string (unsigned, const char *); |
46c5ad27 AJ |
3225 | extern void clean_symbol_name (char *); |
3226 | extern tree get_file_function_name_long (const char *); | |
3227 | extern tree get_set_constructor_bits (tree, char *, int); | |
3228 | extern tree get_set_constructor_bytes (tree, unsigned char *, int); | |
3229 | extern tree get_callee_fndecl (tree); | |
fccc4eb2 | 3230 | extern void change_decl_assembler_name (tree, tree); |
46c5ad27 AJ |
3231 | extern int type_num_arguments (tree); |
3232 | extern tree lhd_unsave_expr_now (tree); | |
3168cb99 JL |
3233 | extern bool associative_tree_code (enum tree_code); |
3234 | extern bool commutative_tree_code (enum tree_code); | |
24965e7a | 3235 | |
143f1945 | 3236 | \f |
8da1b058 RS |
3237 | /* In stmt.c */ |
3238 | ||
46c5ad27 AJ |
3239 | extern void expand_fixups (rtx); |
3240 | extern tree expand_start_stmt_expr (int); | |
3241 | extern tree expand_end_stmt_expr (tree); | |
3242 | extern void expand_expr_stmt (tree); | |
3243 | extern void expand_expr_stmt_value (tree, int, int); | |
3244 | extern int warn_if_unused_value (tree); | |
3245 | extern void expand_decl_init (tree); | |
3246 | extern void clear_last_expr (void); | |
3247 | extern void expand_label (tree); | |
3248 | extern void expand_goto (tree); | |
3249 | extern void expand_asm (tree, int); | |
3250 | extern void expand_start_cond (tree, int); | |
3251 | extern void expand_end_cond (void); | |
3252 | extern void expand_start_else (void); | |
3253 | extern void expand_start_elseif (tree); | |
46c5ad27 | 3254 | |
6de9cd9a DN |
3255 | extern void expand_stack_alloc (tree, tree); |
3256 | extern rtx expand_stack_save (void); | |
3257 | extern void expand_stack_restore (tree); | |
46c5ad27 | 3258 | extern void expand_return (tree); |
46c5ad27 | 3259 | extern void expand_start_bindings_and_block (int, tree); |
a97901e6 MM |
3260 | #define expand_start_bindings(flags) \ |
3261 | expand_start_bindings_and_block(flags, NULL_TREE) | |
46c5ad27 AJ |
3262 | extern void expand_end_bindings (tree, int, int); |
3263 | extern void warn_about_unused_variables (tree); | |
3264 | extern void start_cleanup_deferral (void); | |
3265 | extern void end_cleanup_deferral (void); | |
3266 | extern int is_body_block (tree); | |
3267 | ||
3268 | extern int conditional_context (void); | |
3269 | extern struct nesting * current_nesting_level (void); | |
3270 | extern tree last_cleanup_this_contour (void); | |
3271 | extern void expand_start_case (int, tree, tree, const char *); | |
3272 | extern void expand_end_case_type (tree, tree); | |
6f9fdf4d | 3273 | #define expand_end_case(cond) expand_end_case_type (cond, NULL) |
6de9cd9a | 3274 | extern int add_case_node (tree, tree, tree, tree *, bool); |
46c5ad27 AJ |
3275 | extern int pushcase (tree, tree (*) (tree, tree), tree, tree *); |
3276 | extern int pushcase_range (tree, tree, tree (*) (tree, tree), tree, tree *); | |
3277 | extern void using_eh_for_cleanups (void); | |
8da1b058 RS |
3278 | |
3279 | /* In fold-const.c */ | |
3280 | ||
4b63dccb RK |
3281 | /* Fold constants as much as possible in an expression. |
3282 | Returns the simplified expression. | |
3283 | Acts only on the top level of the expression; | |
3284 | if the argument itself cannot be simplified, its | |
3285 | subexpressions are not changed. */ | |
3286 | ||
46c5ad27 | 3287 | extern tree fold (tree); |
3e4093b6 | 3288 | extern tree fold_initializer (tree); |
e419fe91 | 3289 | extern tree fold_convert (tree, tree); |
46c5ad27 | 3290 | extern tree fold_single_bit_test (enum tree_code, tree, tree, tree); |
9655d83b | 3291 | extern tree fold_abs_const (tree, tree); |
46c5ad27 AJ |
3292 | |
3293 | extern int force_fit_type (tree, int); | |
3294 | extern int add_double (unsigned HOST_WIDE_INT, HOST_WIDE_INT, | |
3295 | unsigned HOST_WIDE_INT, HOST_WIDE_INT, | |
3296 | unsigned HOST_WIDE_INT *, HOST_WIDE_INT *); | |
3297 | extern int neg_double (unsigned HOST_WIDE_INT, HOST_WIDE_INT, | |
3298 | unsigned HOST_WIDE_INT *, HOST_WIDE_INT *); | |
3299 | extern int mul_double (unsigned HOST_WIDE_INT, HOST_WIDE_INT, | |
3300 | unsigned HOST_WIDE_INT, HOST_WIDE_INT, | |
3301 | unsigned HOST_WIDE_INT *, HOST_WIDE_INT *); | |
3302 | extern void lshift_double (unsigned HOST_WIDE_INT, HOST_WIDE_INT, | |
3303 | HOST_WIDE_INT, unsigned int, | |
3304 | unsigned HOST_WIDE_INT *, HOST_WIDE_INT *, int); | |
3305 | extern void rshift_double (unsigned HOST_WIDE_INT, HOST_WIDE_INT, | |
3306 | HOST_WIDE_INT, unsigned int, | |
3307 | unsigned HOST_WIDE_INT *, HOST_WIDE_INT *, int); | |
3308 | extern void lrotate_double (unsigned HOST_WIDE_INT, HOST_WIDE_INT, | |
3309 | HOST_WIDE_INT, unsigned int, | |
3310 | unsigned HOST_WIDE_INT *, HOST_WIDE_INT *); | |
3311 | extern void rrotate_double (unsigned HOST_WIDE_INT, HOST_WIDE_INT, | |
3312 | HOST_WIDE_INT, unsigned int, | |
3313 | unsigned HOST_WIDE_INT *, HOST_WIDE_INT *); | |
3314 | ||
3315 | extern int div_and_round_double (enum tree_code, int, unsigned HOST_WIDE_INT, | |
3316 | HOST_WIDE_INT, unsigned HOST_WIDE_INT, | |
3317 | HOST_WIDE_INT, unsigned HOST_WIDE_INT *, | |
3318 | HOST_WIDE_INT *, unsigned HOST_WIDE_INT *, | |
3319 | HOST_WIDE_INT *); | |
3320 | ||
6de9cd9a DN |
3321 | enum operand_equal_flag |
3322 | { | |
3323 | OEP_ONLY_CONST = 1, | |
3324 | OEP_PURE_SAME = 2 | |
3325 | }; | |
3326 | ||
3327 | extern int operand_equal_p (tree, tree, unsigned int); | |
3328 | ||
46c5ad27 | 3329 | extern tree omit_one_operand (tree, tree, tree); |
08039bd8 | 3330 | extern tree omit_two_operands (tree, tree, tree, tree); |
46c5ad27 | 3331 | extern tree invert_truthvalue (tree); |
6de9cd9a DN |
3332 | extern tree nondestructive_fold_unary_to_constant (enum tree_code, tree, tree); |
3333 | extern tree nondestructive_fold_binary_to_constant (enum tree_code, tree, tree, tree); | |
3334 | extern tree fold_read_from_constant_string (tree); | |
3335 | extern tree int_const_binop (enum tree_code, tree, tree, int); | |
cd3ce9b4 JM |
3336 | extern tree build_fold_addr_expr (tree); |
3337 | extern tree build_fold_addr_expr_with_type (tree, tree); | |
3338 | extern tree build_fold_indirect_ref (tree); | |
c530479e | 3339 | |
fd660b1b JL |
3340 | extern bool tree_swap_operands_p (tree, tree, bool); |
3341 | extern enum tree_code swap_tree_comparison (enum tree_code); | |
3342 | ||
4977bab6 | 3343 | /* In builtins.c */ |
46c5ad27 AJ |
3344 | extern tree fold_builtin (tree); |
3345 | extern enum built_in_function builtin_mathfn_code (tree); | |
3346 | extern tree build_function_call_expr (tree, tree); | |
3347 | extern tree mathfn_built_in (tree, enum built_in_function fn); | |
6de9cd9a DN |
3348 | extern tree strip_float_extensions (tree); |
3349 | extern tree simplify_builtin (tree, int); | |
3350 | extern tree c_strlen (tree, int); | |
e5da415c | 3351 | extern tree std_gimplify_va_arg_expr (tree, tree, tree *, tree *); |
a3c11cd3 | 3352 | |
77f9af81 | 3353 | /* In convert.c */ |
46c5ad27 | 3354 | extern tree strip_float_extensions (tree); |
77f9af81 | 3355 | |
a0c33338 | 3356 | /* In alias.c */ |
46c5ad27 AJ |
3357 | extern void record_component_aliases (tree); |
3358 | extern HOST_WIDE_INT get_alias_set (tree); | |
3359 | extern int alias_sets_conflict_p (HOST_WIDE_INT, HOST_WIDE_INT); | |
5399d643 | 3360 | extern int alias_sets_might_conflict_p (HOST_WIDE_INT, HOST_WIDE_INT); |
46c5ad27 AJ |
3361 | extern int readonly_fields_p (tree); |
3362 | extern int objects_must_conflict_p (tree, tree); | |
bebe2280 | 3363 | |
a1d061a1 | 3364 | /* In tree.c */ |
46c5ad27 AJ |
3365 | extern int really_constant_p (tree); |
3366 | extern int int_fits_type_p (tree, tree); | |
3367 | extern bool variably_modified_type_p (tree); | |
3368 | extern int tree_log2 (tree); | |
3369 | extern int tree_floor_log2 (tree); | |
3370 | extern int simple_cst_equal (tree, tree); | |
3371 | extern unsigned int iterative_hash_expr (tree, unsigned int); | |
3372 | extern int compare_tree_int (tree, unsigned HOST_WIDE_INT); | |
3373 | extern int type_list_equal (tree, tree); | |
3374 | extern int chain_member (tree, tree); | |
3375 | extern tree type_hash_lookup (unsigned int, tree); | |
3376 | extern void type_hash_add (unsigned int, tree); | |
46c5ad27 AJ |
3377 | extern int simple_cst_list_equal (tree, tree); |
3378 | extern void dump_tree_statistics (void); | |
3379 | extern void expand_function_end (void); | |
3380 | extern void expand_function_start (tree, int); | |
3381 | extern void expand_pending_sizes (tree); | |
6de9cd9a DN |
3382 | extern void recompute_tree_invarant_for_addr_expr (tree); |
3383 | extern bool needs_to_live_in_memory (tree); | |
3384 | extern tree make_vector (enum machine_mode, tree, int); | |
b34417a4 | 3385 | extern tree reconstruct_complex_type (tree, tree); |
46c5ad27 AJ |
3386 | |
3387 | extern int real_onep (tree); | |
3388 | extern int real_twop (tree); | |
3389 | extern int real_minus_onep (tree); | |
3390 | extern void init_ttree (void); | |
3391 | extern void build_common_tree_nodes (int); | |
3392 | extern void build_common_tree_nodes_2 (int); | |
3393 | extern tree build_range_type (tree, tree, tree); | |
a1d061a1 JL |
3394 | |
3395 | /* In function.c */ | |
46c5ad27 AJ |
3396 | extern void setjmp_protect_args (void); |
3397 | extern void setjmp_protect (tree); | |
3398 | extern void expand_main_function (void); | |
3399 | extern void init_dummy_function_start (void); | |
3400 | extern void expand_dummy_function_end (void); | |
3401 | extern void init_function_for_compilation (void); | |
3a70d621 | 3402 | extern void allocate_struct_function (tree); |
46c5ad27 AJ |
3403 | extern void init_function_start (tree); |
3404 | extern void assign_parms (tree); | |
3405 | extern void put_var_into_stack (tree, int); | |
3406 | extern void flush_addressof (tree); | |
6de9cd9a | 3407 | extern void setjmp_vars_warning (tree); |
46c5ad27 | 3408 | extern void setjmp_args_warning (void); |
46c5ad27 AJ |
3409 | extern void init_temp_slots (void); |
3410 | extern void combine_temp_slots (void); | |
3411 | extern void free_temp_slots (void); | |
3412 | extern void pop_temp_slots (void); | |
3413 | extern void push_temp_slots (void); | |
3414 | extern void preserve_temp_slots (rtx); | |
3415 | extern void preserve_rtl_expr_temps (tree); | |
61f71b34 | 3416 | extern int aggregate_value_p (tree, tree); |
46c5ad27 AJ |
3417 | extern void free_temps_for_rtl_expr (tree); |
3418 | extern void instantiate_virtual_regs (tree, rtx); | |
3419 | extern void unshare_all_rtl (tree, rtx); | |
3420 | extern void push_function_context (void); | |
3421 | extern void pop_function_context (void); | |
3422 | extern void push_function_context_to (tree); | |
3423 | extern void pop_function_context_from (tree); | |
a1d061a1 JL |
3424 | |
3425 | /* In print-rtl.c */ | |
3426 | #ifdef BUFSIZ | |
46c5ad27 | 3427 | extern void print_rtl (FILE *, rtx); |
a1d061a1 JL |
3428 | #endif |
3429 | ||
3430 | /* In print-tree.c */ | |
46c5ad27 | 3431 | extern void debug_tree (tree); |
a1d061a1 | 3432 | #ifdef BUFSIZ |
46c5ad27 AJ |
3433 | extern void print_node (FILE *, const char *, tree, int); |
3434 | extern void print_node_brief (FILE *, const char *, tree, int); | |
3435 | extern void indent_to (FILE *, int); | |
a1d061a1 JL |
3436 | #endif |
3437 | ||
3438 | /* In expr.c */ | |
46c5ad27 AJ |
3439 | extern rtx expand_builtin_return_addr (enum built_in_function, int, rtx); |
3440 | extern void check_max_integer_computation_mode (tree); | |
a1d061a1 JL |
3441 | |
3442 | /* In emit-rtl.c */ | |
46c5ad27 | 3443 | extern void start_sequence_for_rtl_expr (tree); |
0cea056b | 3444 | extern rtx emit_line_note (location_t); |
a1d061a1 | 3445 | |
3a8c995b | 3446 | /* In calls.c */ |
f2d33f13 | 3447 | |
fa5b060f SB |
3448 | /* Nonzero if this is a call to a `const' function. */ |
3449 | #define ECF_CONST 1 | |
3450 | /* Nonzero if this is a call to a `volatile' function. */ | |
3451 | #define ECF_NORETURN 2 | |
3452 | /* Nonzero if this is a call to malloc or a related function. */ | |
3453 | #define ECF_MALLOC 4 | |
3454 | /* Nonzero if it is plausible that this is a call to alloca. */ | |
3455 | #define ECF_MAY_BE_ALLOCA 8 | |
3456 | /* Nonzero if this is a call to a function that won't throw an exception. */ | |
3457 | #define ECF_NOTHROW 16 | |
3458 | /* Nonzero if this is a call to setjmp or a related function. */ | |
3459 | #define ECF_RETURNS_TWICE 32 | |
3460 | /* Nonzero if this is a call to `longjmp'. */ | |
3461 | #define ECF_LONGJMP 64 | |
3462 | /* Nonzero if this is a syscall that makes a new process in the image of | |
3463 | the current one. */ | |
d1c38823 | 3464 | #define ECF_SIBCALL 128 |
fa5b060f SB |
3465 | /* Nonzero if this is a call to "pure" function (like const function, |
3466 | but may read memory. */ | |
d1c38823 | 3467 | #define ECF_PURE 256 |
fa5b060f SB |
3468 | /* Nonzero if this is a call to a function that returns with the stack |
3469 | pointer depressed. */ | |
d1c38823 | 3470 | #define ECF_SP_DEPRESSED 512 |
fa5b060f | 3471 | /* Nonzero if this call is known to always return. */ |
d1c38823 | 3472 | #define ECF_ALWAYS_RETURN 1024 |
fa5b060f | 3473 | /* Create libcall block around the call. */ |
d1c38823 | 3474 | #define ECF_LIBCALL_BLOCK 2048 |
fa5b060f | 3475 | |
46c5ad27 | 3476 | extern int flags_from_decl_or_type (tree); |
f027e0a2 | 3477 | extern int call_expr_flags (tree); |
fa5b060f | 3478 | |
46c5ad27 AJ |
3479 | extern int setjmp_call_p (tree); |
3480 | extern bool alloca_call_p (tree); | |
3a8c995b | 3481 | |
bb9f8221 | 3482 | /* In attribs.c. */ |
0c96e965 RK |
3483 | |
3484 | /* Process the attributes listed in ATTRIBUTES and install them in *NODE, | |
3485 | which is either a DECL (including a TYPE_DECL) or a TYPE. If a DECL, | |
3486 | it should be modified in place; if a TYPE, a copy should be created | |
3487 | unless ATTR_FLAG_TYPE_IN_PLACE is set in FLAGS. FLAGS gives further | |
3488 | information, in the form of a bitwise OR of flags in enum attribute_flags | |
3489 | from tree.h. Depending on these flags, some attributes may be | |
3490 | returned to be applied at a later stage (for example, to apply | |
3491 | a decl attribute to the declaration rather than to its type). */ | |
4682ae04 | 3492 | extern tree decl_attributes (tree *, tree, int); |
bb9f8221 | 3493 | |
a1d061a1 | 3494 | /* In integrate.c */ |
46c5ad27 | 3495 | extern void set_decl_abstract_flags (tree, int); |
46c5ad27 | 3496 | extern void set_decl_origin_self (tree); |
a1d061a1 | 3497 | |
a1d061a1 | 3498 | /* In stor-layout.c */ |
7b6d72fc | 3499 | extern void set_min_and_max_values_for_integral_type (tree, int, bool); |
46c5ad27 AJ |
3500 | extern void fixup_signed_type (tree); |
3501 | extern void internal_reference_types (void); | |
6de9cd9a DN |
3502 | extern unsigned int update_alignment_for_field (record_layout_info, tree, |
3503 | unsigned int); | |
a1d061a1 | 3504 | /* varasm.c */ |
46c5ad27 AJ |
3505 | extern void make_decl_rtl (tree, const char *); |
3506 | extern void make_decl_one_only (tree); | |
3507 | extern int supports_one_only (void); | |
3508 | extern void variable_section (tree, int); | |
3509 | enum tls_model decl_tls_model (tree); | |
46c5ad27 AJ |
3510 | extern void resolve_unique_section (tree, int, int); |
3511 | extern void mark_referenced (tree); | |
bb9a388d | 3512 | extern void mark_decl_referenced (tree); |
810db579 | 3513 | extern void notice_global_symbol (tree); |
a1d061a1 | 3514 | |
a1d061a1 | 3515 | /* In stmt.c */ |
46c5ad27 AJ |
3516 | extern void emit_nop (void); |
3517 | extern void expand_computed_goto (tree); | |
3518 | extern bool parse_output_constraint (const char **, int, int, int, | |
3519 | bool *, bool *, bool *); | |
1456deaf JM |
3520 | extern bool parse_input_constraint (const char **, int, int, int, int, |
3521 | const char * const *, bool *, bool *); | |
177560b2 | 3522 | extern void expand_asm_operands (tree, tree, tree, tree, int, location_t); |
6de9cd9a DN |
3523 | extern void expand_asm_expr (tree); |
3524 | extern bool asm_op_is_mem_input (tree, tree); | |
7dc8b126 | 3525 | extern tree resolve_asm_operand_names (tree, tree, tree); |
46c5ad27 AJ |
3526 | extern int any_pending_cleanups (void); |
3527 | extern void init_stmt_for_function (void); | |
3528 | extern void expand_start_target_temps (void); | |
3529 | extern void expand_end_target_temps (void); | |
3530 | extern void expand_elseif (tree); | |
3531 | extern void save_stack_pointer (void); | |
3532 | extern void expand_decl (tree); | |
3533 | extern int expand_decl_cleanup (tree, tree); | |
3534 | extern int expand_decl_cleanup_eh (tree, tree, int); | |
3535 | extern void expand_anon_union_decl (tree, tree, tree); | |
6de9cd9a DN |
3536 | extern int containing_blocks_have_cleanups_or_stack_level (void); |
3537 | ||
3538 | /* In gimplify.c. */ | |
3539 | extern tree create_artificial_label (void); | |
3540 | extern void gimplify_function_tree (tree); | |
3541 | extern const char *get_name (tree); | |
3542 | extern tree unshare_expr (tree); | |
0f1f6967 | 3543 | extern void sort_case_labels (tree); |
a1d061a1 | 3544 | |
496651db MM |
3545 | /* If KIND=='I', return a suitable global initializer (constructor) name. |
3546 | If KIND=='D', return a suitable global clean-up (destructor) name. */ | |
46c5ad27 | 3547 | extern tree get_file_function_name (int); |
af4142d5 JM |
3548 | \f |
3549 | /* Interface of the DWARF2 unwind info support. */ | |
3550 | ||
af4142d5 JM |
3551 | /* Generate a new label for the CFI info to refer to. */ |
3552 | ||
46c5ad27 | 3553 | extern char *dwarf2out_cfi_label (void); |
af4142d5 JM |
3554 | |
3555 | /* Entry point to update the canonical frame address (CFA). */ | |
3556 | ||
0ab5b679 | 3557 | extern void dwarf2out_def_cfa (const char *, unsigned, HOST_WIDE_INT); |
af4142d5 JM |
3558 | |
3559 | /* Add the CFI for saving a register window. */ | |
3560 | ||
46c5ad27 | 3561 | extern void dwarf2out_window_save (const char *); |
af4142d5 JM |
3562 | |
3563 | /* Add a CFI to update the running total of the size of arguments pushed | |
3564 | onto the stack. */ | |
3565 | ||
0ab5b679 | 3566 | extern void dwarf2out_args_size (const char *, HOST_WIDE_INT); |
af4142d5 JM |
3567 | |
3568 | /* Entry point for saving a register to the stack. */ | |
3569 | ||
0ab5b679 | 3570 | extern void dwarf2out_reg_save (const char *, unsigned, HOST_WIDE_INT); |
af4142d5 JM |
3571 | |
3572 | /* Entry point for saving the return address in the stack. */ | |
3573 | ||
0ab5b679 | 3574 | extern void dwarf2out_return_save (const char *, HOST_WIDE_INT); |
af4142d5 JM |
3575 | |
3576 | /* Entry point for saving the return address in a register. */ | |
3577 | ||
46c5ad27 | 3578 | extern void dwarf2out_return_reg (const char *, unsigned); |
af4142d5 | 3579 | |
6de9cd9a | 3580 | /* The type of a callback function for walking over tree structure. */ |
588d3ade | 3581 | |
46c5ad27 | 3582 | typedef tree (*walk_tree_fn) (tree *, int *, void *); |
6de9cd9a DN |
3583 | tree walk_tree (tree*, walk_tree_fn, void*, void*); |
3584 | tree walk_tree_without_duplicates (tree*, walk_tree_fn, void*); | |
588d3ade | 3585 | |
89d684bb BM |
3586 | /* In tree-dump.c */ |
3587 | ||
3588 | /* Different tree dump places. When you add new tree dump places, | |
6de9cd9a | 3589 | extend the DUMP_FILES array in tree-dump.c. */ |
89d684bb BM |
3590 | enum tree_dump_index |
3591 | { | |
6de9cd9a DN |
3592 | TDI_none, /* No dump */ |
3593 | TDI_tu, /* dump the whole translation unit. */ | |
3594 | TDI_class, /* dump class hierarchy. */ | |
89d684bb | 3595 | TDI_original, /* dump each function before optimizing it */ |
6de9cd9a DN |
3596 | TDI_generic, /* dump each function after genericizing it */ |
3597 | TDI_nested, /* dump each function after unnesting it */ | |
89d684bb BM |
3598 | TDI_inlined, /* dump each function after inlining |
3599 | within it. */ | |
6de9cd9a DN |
3600 | TDI_vcg, /* create a VCG graph file for each |
3601 | function's flowgraph. */ | |
9cf737f8 | 3602 | TDI_xml, /* dump function call graph. */ |
6de9cd9a | 3603 | TDI_all, /* enable all the dumps. */ |
89d684bb BM |
3604 | TDI_end |
3605 | }; | |
3606 | ||
3607 | /* Bit masks to control tree dumping. Not all values are applicable to | |
3608 | all tree dumps. Add new ones at the end. When you define new | |
3609 | values, extend the DUMP_OPTIONS array in tree-dump.c */ | |
3610 | #define TDF_ADDRESS (1 << 0) /* dump node addresses */ | |
3611 | #define TDF_SLIM (1 << 1) /* don't go wild following links */ | |
6de9cd9a DN |
3612 | #define TDF_RAW (1 << 2) /* don't unparse the function */ |
3613 | #define TDF_DETAILS (1 << 3) /* show more detailed info about | |
3614 | each pass */ | |
3615 | #define TDF_STATS (1 << 4) /* dump various statistics about | |
3616 | each pass */ | |
3617 | #define TDF_BLOCKS (1 << 5) /* display basic block boundaries */ | |
3618 | #define TDF_VOPS (1 << 6) /* display virtual operands */ | |
3619 | #define TDF_LINENO (1 << 7) /* display statement line numbers */ | |
3620 | #define TDF_UID (1 << 8) /* display decl UIDs */ | |
3621 | ||
89d684bb BM |
3622 | |
3623 | typedef struct dump_info *dump_info_p; | |
3624 | ||
46c5ad27 AJ |
3625 | extern int dump_flag (dump_info_p, int, tree); |
3626 | extern int dump_enabled_p (enum tree_dump_index); | |
3627 | extern FILE *dump_begin (enum tree_dump_index, int *); | |
3628 | extern void dump_end (enum tree_dump_index, FILE *); | |
3629 | extern void dump_node (tree, int, FILE *); | |
3630 | extern int dump_switch_p (const char *); | |
3631 | extern const char *dump_flag_name (enum tree_dump_index); | |
a560d4d4 JH |
3632 | /* Assign the RTX to declaration. */ |
3633 | ||
46c5ad27 | 3634 | extern void set_decl_rtl (tree, rtx); |
fbe6ec81 | 3635 | extern void set_decl_incoming_rtl (tree, rtx); |
9a6bb3f7 | 3636 | \f |
987009bf ZW |
3637 | /* Redefine abort to report an internal error w/o coredump, and |
3638 | reporting the location of the error in the source file. This logic | |
3639 | is duplicated in rtl.h and tree.h because every file that needs the | |
3640 | special abort includes one or both. toplev.h gets too few files, | |
3641 | system.h gets too many. */ | |
3642 | ||
46c5ad27 | 3643 | extern void fancy_abort (const char *, int, const char *) |
987009bf | 3644 | ATTRIBUTE_NORETURN; |
fbfc1192 | 3645 | #define abort() fancy_abort (__FILE__, __LINE__, __FUNCTION__) |
df89f8e7 | 3646 | |
adc4adcd | 3647 | /* Enum and arrays used for tree allocation stats. |
938d968e | 3648 | Keep in sync with tree.c:tree_node_kind_names. */ |
adc4adcd GP |
3649 | typedef enum |
3650 | { | |
3651 | d_kind, | |
3652 | t_kind, | |
3653 | b_kind, | |
3654 | s_kind, | |
3655 | r_kind, | |
3656 | e_kind, | |
3657 | c_kind, | |
3658 | id_kind, | |
3659 | perm_list_kind, | |
3660 | temp_list_kind, | |
3661 | vec_kind, | |
6de9cd9a DN |
3662 | phi_kind, |
3663 | ssa_name_kind, | |
adc4adcd GP |
3664 | x_kind, |
3665 | lang_decl, | |
3666 | lang_type, | |
3667 | all_kinds | |
3668 | } tree_node_kind; | |
3669 | ||
3670 | extern int tree_node_counts[]; | |
3671 | extern int tree_node_sizes[]; | |
6de9cd9a DN |
3672 | |
3673 | /* True if we are in gimple form and the actions of the folders need to | |
3674 | be restricted. False if we are not in gimple form and folding is not | |
3675 | restricted to creating gimple expressions. */ | |
3676 | extern bool in_gimple_form; | |
adc4adcd | 3677 | |
df89f8e7 | 3678 | #endif /* GCC_TREE_H */ |