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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" |
9f8f4efe | 26 | #include "version.h" |
6060edcb | 27 | #include "input.h" |
b9dcdee4 | 28 | #include "statistics.h" |
8da1b058 | 29 | |
d6b12657 | 30 | /* Codes of tree nodes */ |
8da1b058 RS |
31 | |
32 | #define DEFTREECODE(SYM, STRING, TYPE, NARGS) SYM, | |
33 | ||
34 | enum tree_code { | |
35 | #include "tree.def" | |
36 | ||
6dc42e49 | 37 | LAST_AND_UNUSED_TREE_CODE /* A convenient way to get a value for |
8da1b058 RS |
38 | NUM_TREE_CODE. */ |
39 | }; | |
40 | ||
41 | #undef DEFTREECODE | |
42 | ||
8d5e6e25 RK |
43 | /* Number of language-independent tree codes. */ |
44 | #define NUM_TREE_CODES ((int) LAST_AND_UNUSED_TREE_CODE) | |
8da1b058 RS |
45 | |
46 | /* Indexed by enum tree_code, contains a character which is | |
47 | `<' for a comparison expression, `1', for a unary arithmetic | |
48 | expression, `2' for a binary arithmetic expression, `e' for | |
49 | other types of expressions, `r' for a reference, `c' for a | |
50 | constant, `d' for a decl, `t' for a type, `s' for a statement, | |
51 | and `x' for anything else (TREE_LIST, IDENTIFIER, etc). */ | |
52 | ||
0a6969ad | 53 | #define MAX_TREE_CODES 256 |
2f9834e8 | 54 | extern const char tree_code_type[]; |
0a6969ad | 55 | #define TREE_CODE_CLASS(CODE) tree_code_type[(int) (CODE)] |
8da1b058 | 56 | |
0e9e1e0a | 57 | /* Returns nonzero iff CLASS is the tree-code class of an |
4da05956 MM |
58 | expression. */ |
59 | ||
c25d44dd JM |
60 | #define IS_EXPR_CODE_CLASS(CLASS) (strchr ("<12ers", (CLASS)) != 0) |
61 | ||
62 | /* Returns nonzero iff NODE is an expression of some kind. */ | |
63 | ||
64 | #define EXPR_P(NODE) IS_EXPR_CODE_CLASS (TREE_CODE_CLASS (TREE_CODE (NODE))) | |
4da05956 | 65 | |
8da1b058 RS |
66 | /* Number of argument-words in each kind of tree-node. */ |
67 | ||
2f9834e8 | 68 | extern const unsigned char tree_code_length[]; |
8d5e6e25 | 69 | #define TREE_CODE_LENGTH(CODE) tree_code_length[(int) (CODE)] |
8da1b058 RS |
70 | |
71 | /* Names of tree components. */ | |
72 | ||
2f9834e8 | 73 | extern const char *const tree_code_name[]; |
8da1b058 | 74 | \f |
9df2c88c RK |
75 | /* Classify which part of the compiler has defined a given builtin function. |
76 | Note that we assume below that this is no more than two bits. */ | |
26db82d8 BS |
77 | enum built_in_class |
78 | { | |
79 | NOT_BUILT_IN = 0, | |
80 | BUILT_IN_FRONTEND, | |
81 | BUILT_IN_MD, | |
82 | BUILT_IN_NORMAL | |
83 | }; | |
9df2c88c RK |
84 | |
85 | /* Names for the above. */ | |
fd05eb80 | 86 | extern const char *const built_in_class_names[4]; |
9df2c88c | 87 | |
8da1b058 RS |
88 | /* Codes that identify the various built in functions |
89 | so that expand_call can identify them quickly. */ | |
90 | ||
272f51a3 | 91 | #define DEF_BUILTIN(ENUM, N, C, T, LT, B, F, NA, AT, IM) ENUM, |
8da1b058 RS |
92 | enum built_in_function |
93 | { | |
cb1072f4 | 94 | #include "builtins.def" |
972ded9c | 95 | |
2ba84f36 | 96 | /* Upper bound on non-language-specific builtins. */ |
972ded9c | 97 | END_BUILTINS |
8da1b058 | 98 | }; |
cb1072f4 | 99 | #undef DEF_BUILTIN |
9df2c88c RK |
100 | |
101 | /* Names for the above. */ | |
fd05eb80 | 102 | extern const char *const built_in_names[(int) END_BUILTINS]; |
3ff5f682 | 103 | |
82b4201f KG |
104 | /* Helper macros for math builtins. */ |
105 | ||
106 | #define BUILTIN_EXP10_P(FN) \ | |
107 | ((FN) == BUILT_IN_EXP10 || (FN) == BUILT_IN_EXP10F || (FN) == BUILT_IN_EXP10L \ | |
108 | || (FN) == BUILT_IN_POW10 || (FN) == BUILT_IN_POW10F || (FN) == BUILT_IN_POW10L) | |
109 | ||
110 | #define BUILTIN_EXPONENT_P(FN) (BUILTIN_EXP10_P (FN) \ | |
111 | || (FN) == BUILT_IN_EXP || (FN) == BUILT_IN_EXPF || (FN) == BUILT_IN_EXPL \ | |
112 | || (FN) == BUILT_IN_EXP2 || (FN) == BUILT_IN_EXP2F || (FN) == BUILT_IN_EXP2L) | |
113 | ||
114 | #define BUILTIN_SQRT_P(FN) \ | |
115 | ((FN) == BUILT_IN_SQRT || (FN) == BUILT_IN_SQRTF || (FN) == BUILT_IN_SQRTL) | |
116 | ||
117 | #define BUILTIN_CBRT_P(FN) \ | |
118 | ((FN) == BUILT_IN_CBRT || (FN) == BUILT_IN_CBRTF || (FN) == BUILT_IN_CBRTL) | |
119 | ||
120 | #define BUILTIN_ROOT_P(FN) (BUILTIN_SQRT_P (FN) || BUILTIN_CBRT_P (FN)) | |
121 | ||
3ff5f682 | 122 | /* An array of _DECL trees for the above. */ |
17211ab5 | 123 | extern GTY(()) tree built_in_decls[(int) END_BUILTINS]; |
272f51a3 | 124 | extern GTY(()) tree implicit_built_in_decls[(int) END_BUILTINS]; |
8da1b058 RS |
125 | \f |
126 | /* The definition of tree nodes fills the next several pages. */ | |
127 | ||
128 | /* A tree node can represent a data type, a variable, an expression | |
129 | or a statement. Each node has a TREE_CODE which says what kind of | |
130 | thing it represents. Some common codes are: | |
131 | INTEGER_TYPE -- represents a type of integers. | |
132 | ARRAY_TYPE -- represents a type of pointer. | |
133 | VAR_DECL -- represents a declared variable. | |
134 | INTEGER_CST -- represents a constant integer value. | |
135 | PLUS_EXPR -- represents a sum (an expression). | |
136 | ||
137 | As for the contents of a tree node: there are some fields | |
138 | that all nodes share. Each TREE_CODE has various special-purpose | |
139 | fields as well. The fields of a node are never accessed directly, | |
140 | always through accessor macros. */ | |
141 | ||
8da1b058 RS |
142 | /* Every kind of tree node starts with this structure, |
143 | so all nodes have these fields. | |
144 | ||
76c9d226 | 145 | See the accessor macros, defined below, for documentation of the |
eebedaa5 | 146 | fields. */ |
8da1b058 | 147 | |
e2500fed | 148 | struct tree_common GTY(()) |
8da1b058 | 149 | { |
2f78c311 ZW |
150 | tree chain; |
151 | tree type; | |
ae34ac46 | 152 | |
c149cc37 | 153 | ENUM_BITFIELD(tree_code) code : 8; |
ae34ac46 | 154 | |
8da1b058 RS |
155 | unsigned side_effects_flag : 1; |
156 | unsigned constant_flag : 1; | |
8da1b058 RS |
157 | unsigned addressable_flag : 1; |
158 | unsigned volatile_flag : 1; | |
159 | unsigned readonly_flag : 1; | |
160 | unsigned unsigned_flag : 1; | |
161 | unsigned asm_written_flag: 1; | |
ae34ac46 | 162 | unsigned unused_0 : 1; |
8da1b058 RS |
163 | |
164 | unsigned used_flag : 1; | |
12a22e76 | 165 | unsigned nothrow_flag : 1; |
8da1b058 RS |
166 | unsigned static_flag : 1; |
167 | unsigned public_flag : 1; | |
168 | unsigned private_flag : 1; | |
169 | unsigned protected_flag : 1; | |
e23bd218 | 170 | unsigned deprecated_flag : 1; |
66804d9e | 171 | unsigned unused_1 : 1; |
8da1b058 RS |
172 | |
173 | unsigned lang_flag_0 : 1; | |
174 | unsigned lang_flag_1 : 1; | |
175 | unsigned lang_flag_2 : 1; | |
176 | unsigned lang_flag_3 : 1; | |
177 | unsigned lang_flag_4 : 1; | |
178 | unsigned lang_flag_5 : 1; | |
179 | unsigned lang_flag_6 : 1; | |
66804d9e | 180 | unsigned unused_2 : 1; |
8da1b058 RS |
181 | }; |
182 | ||
a5f99f01 RK |
183 | /* The following table lists the uses of each of the above flags and |
184 | for which types of nodes they are defined. Note that expressions | |
185 | include decls. | |
186 | ||
187 | addressable_flag: | |
188 | ||
189 | TREE_ADDRESSABLE in | |
46c5ad27 | 190 | VAR_DECL, FUNCTION_DECL, FIELD_DECL, CONSTRUCTOR, LABEL_DECL, |
1574ef13 AO |
191 | ..._TYPE, IDENTIFIER_NODE. |
192 | In a STMT_EXPR, it means we want the result of the enclosed | |
193 | expression. | |
a5f99f01 RK |
194 | |
195 | static_flag: | |
196 | ||
197 | TREE_STATIC in | |
e5e809f4 | 198 | VAR_DECL, FUNCTION_DECL, CONSTRUCTOR, ADDR_EXPR |
a5f99f01 | 199 | TREE_NO_UNUSED_WARNING in |
22421b79 RK |
200 | CONVERT_EXPR, NOP_EXPR, COMPOUND_EXPR, NON_LVALUE_EXPR |
201 | ??? plus other expressions, apparently (e.g. MODIFY_EXPR). | |
a5f99f01 RK |
202 | TREE_VIA_VIRTUAL in |
203 | TREE_LIST or TREE_VEC | |
204 | TREE_CONSTANT_OVERFLOW in | |
69ef87e2 | 205 | INTEGER_CST, REAL_CST, COMPLEX_CST, VECTOR_CST |
a5f99f01 RK |
206 | TREE_SYMBOL_REFERENCED in |
207 | IDENTIFIER_NODE | |
659e5a7a JM |
208 | CLEANUP_EH_ONLY in |
209 | TARGET_EXPR, WITH_CLEANUP_EXPR, CLEANUP_STMT, | |
210 | TREE_LIST elements of a block's cleanup list. | |
22421b79 RK |
211 | TYPE_REF_CAN_ALIAS_ALL in |
212 | POINTER_TYPE, REFERENCE_TYPE | |
a5f99f01 RK |
213 | |
214 | public_flag: | |
215 | ||
216 | TREE_OVERFLOW in | |
69ef87e2 | 217 | INTEGER_CST, REAL_CST, COMPLEX_CST, VECTOR_CST |
22421b79 | 218 | ??? and other expressions? |
a5f99f01 | 219 | TREE_PUBLIC in |
4c521bad | 220 | VAR_DECL or FUNCTION_DECL or IDENTIFIER_NODE |
dadafe54 PB |
221 | EXPR_WFL_EMIT_LINE_NOTE in |
222 | EXPR_WITH_FILE_LOCATION | |
a5f99f01 RK |
223 | |
224 | private_flag: | |
225 | ||
a5f99f01 | 226 | TREE_PRIVATE in |
659e5a7a | 227 | ..._DECL |
4977bab6 ZW |
228 | CALL_EXPR_HAS_RETURN_SLOT_ADDR in |
229 | CALL_EXPR | |
a5f99f01 RK |
230 | |
231 | protected_flag: | |
232 | ||
a5f99f01 RK |
233 | TREE_PROTECTED in |
234 | BLOCK | |
659e5a7a | 235 | ..._DECL |
dd292d0a MM |
236 | CALL_FROM_THUNK_P in |
237 | CALL_EXPR | |
a5f99f01 RK |
238 | |
239 | side_effects_flag: | |
240 | ||
241 | TREE_SIDE_EFFECTS in | |
242 | all expressions | |
243 | ||
244 | volatile_flag: | |
245 | ||
246 | TREE_THIS_VOLATILE in | |
247 | all expressions | |
248 | TYPE_VOLATILE in | |
249 | ..._TYPE | |
250 | ||
251 | readonly_flag: | |
252 | ||
253 | TREE_READONLY in | |
e5e809f4 | 254 | all expressions |
a5f99f01 RK |
255 | TYPE_READONLY in |
256 | ..._TYPE | |
257 | ||
258 | constant_flag: | |
259 | ||
260 | TREE_CONSTANT in | |
261 | all expressions | |
262 | ||
a5f99f01 RK |
263 | unsigned_flag: |
264 | ||
265 | TREE_UNSIGNED in | |
266 | INTEGER_TYPE, ENUMERAL_TYPE, FIELD_DECL | |
e9a25f70 JL |
267 | SAVE_EXPR_NOPLACEHOLDER in |
268 | SAVE_EXPR | |
a5f99f01 RK |
269 | |
270 | asm_written_flag: | |
271 | ||
272 | TREE_ASM_WRITTEN in | |
273 | VAR_DECL, FUNCTION_DECL, RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE | |
274 | BLOCK | |
275 | ||
276 | used_flag: | |
277 | ||
278 | TREE_USED in | |
279 | expressions, IDENTIFIER_NODE | |
280 | ||
12a22e76 | 281 | nothrow_flag: |
a5f99f01 | 282 | |
12a22e76 JM |
283 | TREE_NOTHROW in |
284 | CALL_EXPR, FUNCTION_DECL | |
a5f99f01 | 285 | |
1e2d4dc1 RK |
286 | TYPE_ALIGN_OK in |
287 | ..._TYPE | |
288 | ||
e23bd218 IR |
289 | deprecated_flag: |
290 | ||
291 | TREE_DEPRECATED in | |
292 | ..._DECL | |
dd292d0a | 293 | |
e23bd218 | 294 | */ |
a6d7adfd | 295 | |
8da1b058 RS |
296 | /* Define accessors for the fields that all tree nodes have |
297 | (though some fields are not used for all kinds of nodes). */ | |
298 | ||
299 | /* The tree-code says what kind of node it is. | |
300 | Codes are defined in tree.def. */ | |
301 | #define TREE_CODE(NODE) ((enum tree_code) (NODE)->common.code) | |
7e7c843f | 302 | #define TREE_SET_CODE(NODE, VALUE) ((NODE)->common.code = (VALUE)) |
8da1b058 | 303 | |
12b195d9 | 304 | /* When checking is enabled, errors will be generated if a tree node |
8f985ec4 | 305 | is accessed incorrectly. The macros abort with a fatal error. */ |
f4524c9e | 306 | #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007) |
12b195d9 | 307 | |
7f42b6d7 RK |
308 | #define TREE_CHECK(T, CODE) __extension__ \ |
309 | ({ const tree __t = (T); \ | |
310 | if (TREE_CODE (__t) != (CODE)) \ | |
311 | tree_check_failed (__t, (CODE), __FILE__, __LINE__, __FUNCTION__); \ | |
8f985ec4 | 312 | __t; }) |
7f42b6d7 | 313 | |
eb34af89 RK |
314 | #define TREE_CHECK2(T, CODE1, CODE2) __extension__ \ |
315 | ({ const tree __t = (T); \ | |
316 | if (TREE_CODE (__t) != (CODE1) \ | |
317 | && TREE_CODE (__t) != (CODE2)) \ | |
318 | tree_check2_failed (__t, (CODE1), (CODE2), __FILE__, __LINE__, \ | |
319 | __FUNCTION__); \ | |
320 | __t; }) | |
321 | ||
322 | #define TREE_CHECK3(T, CODE1, CODE2, CODE3) __extension__ \ | |
323 | ({ const tree __t = (T); \ | |
324 | if (TREE_CODE (__t) != (CODE1) \ | |
325 | && TREE_CODE (__t) != (CODE2) \ | |
326 | && TREE_CODE (__t) != (CODE3)) \ | |
327 | tree_check3_failed (__t, (CODE1), (CODE2), (CODE3), __FILE__, \ | |
328 | __LINE__, __FUNCTION__); \ | |
329 | __t; }) | |
330 | ||
22421b79 RK |
331 | #define TREE_CHECK4(T, CODE1, CODE2, CODE3, CODE4) __extension__ \ |
332 | ({ const tree __t = (T); \ | |
333 | if (TREE_CODE (__t) != (CODE1) \ | |
334 | && TREE_CODE (__t) != (CODE2) \ | |
335 | && TREE_CODE (__t) != (CODE3) \ | |
336 | && TREE_CODE (__t) != (CODE4)) \ | |
337 | tree_check4_failed (__t, (CODE1), (CODE2), (CODE3), (CODE4), \ | |
338 | __FILE__, __LINE__, __FUNCTION__); \ | |
339 | __t; }) | |
340 | ||
eb34af89 RK |
341 | #define TREE_CHECK5(T, CODE1, CODE2, CODE3, CODE4, CODE5) __extension__ \ |
342 | ({ const tree __t = (T); \ | |
343 | if (TREE_CODE (__t) != (CODE1) \ | |
344 | && TREE_CODE (__t) != (CODE2) \ | |
345 | && TREE_CODE (__t) != (CODE3) \ | |
346 | && TREE_CODE (__t) != (CODE4) \ | |
347 | && TREE_CODE (__t) != (CODE5)) \ | |
348 | tree_check5_failed (__t, (CODE1), (CODE2), (CODE3), (CODE4), \ | |
349 | (CODE5), __FILE__, __LINE__, __FUNCTION__); \ | |
350 | __t; }) | |
351 | ||
7f42b6d7 RK |
352 | #define TREE_CLASS_CHECK(T, CLASS) __extension__ \ |
353 | ({ const tree __t = (T); \ | |
354 | if (TREE_CODE_CLASS (TREE_CODE(__t)) != (CLASS)) \ | |
355 | tree_class_check_failed (__t, (CLASS), __FILE__, __LINE__, \ | |
b9daac31 | 356 | __FUNCTION__); \ |
8f985ec4 ZW |
357 | __t; }) |
358 | ||
359 | /* These checks have to be special cased. */ | |
7f42b6d7 RK |
360 | #define EXPR_CHECK(T) __extension__ \ |
361 | ({ const tree __t = (T); \ | |
362 | char const __c = TREE_CODE_CLASS (TREE_CODE (__t)); \ | |
68ad9159 | 363 | if (!IS_EXPR_CODE_CLASS (__c)) \ |
b9daac31 GS |
364 | tree_class_check_failed (__t, 'e', __FILE__, __LINE__, \ |
365 | __FUNCTION__); \ | |
8f985ec4 ZW |
366 | __t; }) |
367 | ||
7f42b6d7 RK |
368 | #define TREE_VEC_ELT_CHECK(T, I) __extension__ \ |
369 | (*({const tree __t = (T); \ | |
370 | const int __i = (I); \ | |
fa7b533b ZW |
371 | if (TREE_CODE (__t) != TREE_VEC) \ |
372 | tree_check_failed (__t, TREE_VEC, \ | |
373 | __FILE__, __LINE__, __FUNCTION__); \ | |
374 | if (__i < 0 || __i >= __t->vec.length) \ | |
375 | tree_vec_elt_check_failed (__i, __t->vec.length, \ | |
376 | __FILE__, __LINE__, __FUNCTION__); \ | |
377 | &__t->vec.a[__i]; })) | |
378 | ||
06790e5f | 379 | /* Special checks for TREE_OPERANDs. */ |
7f42b6d7 | 380 | #define TREE_OPERAND_CHECK(T, I) __extension__ \ |
55448d12 | 381 | (*({const tree __t = EXPR_CHECK (T); \ |
7f42b6d7 | 382 | const int __i = (I); \ |
06790e5f ZW |
383 | if (__i < 0 || __i >= TREE_CODE_LENGTH (TREE_CODE (__t))) \ |
384 | tree_operand_check_failed (__i, TREE_CODE (__t), \ | |
385 | __FILE__, __LINE__, __FUNCTION__); \ | |
386 | &__t->exp.operands[__i]; })) | |
387 | ||
7f42b6d7 RK |
388 | #define TREE_OPERAND_CHECK_CODE(T, CODE, I) __extension__ \ |
389 | (*({const tree __t = (T); \ | |
390 | const int __i = (I); \ | |
391 | if (TREE_CODE (__t) != CODE) \ | |
392 | tree_check_failed (__t, CODE, __FILE__, __LINE__, __FUNCTION__); \ | |
393 | if (__i < 0 || __i >= TREE_CODE_LENGTH (CODE)) \ | |
394 | tree_operand_check_failed (__i, (CODE), \ | |
06790e5f ZW |
395 | __FILE__, __LINE__, __FUNCTION__); \ |
396 | &__t->exp.operands[__i]; })) | |
397 | ||
7f42b6d7 | 398 | #define TREE_RTL_OPERAND_CHECK(T, CODE, I) __extension__ \ |
06790e5f | 399 | (*(rtx *) \ |
7f42b6d7 RK |
400 | ({const tree __t = (T); \ |
401 | const int __i = (I); \ | |
402 | if (TREE_CODE (__t) != (CODE)) \ | |
403 | tree_check_failed (__t, (CODE), __FILE__, __LINE__, __FUNCTION__); \ | |
404 | if (__i < 0 || __i >= TREE_CODE_LENGTH ((CODE))) \ | |
405 | tree_operand_check_failed (__i, (CODE), \ | |
06790e5f ZW |
406 | __FILE__, __LINE__, __FUNCTION__); \ |
407 | &__t->exp.operands[__i]; })) | |
408 | ||
46c5ad27 AJ |
409 | extern void tree_check_failed (const tree, enum tree_code, |
410 | const char *, int, const char *) | |
8f985ec4 | 411 | ATTRIBUTE_NORETURN; |
eb34af89 RK |
412 | extern void tree_check2_failed (const tree, enum tree_code, enum tree_code, |
413 | const char *, int, const char *) | |
414 | ATTRIBUTE_NORETURN; | |
415 | extern void tree_check3_failed (const tree, enum tree_code, enum tree_code, | |
416 | enum tree_code, const char *, int, | |
417 | const char *) | |
418 | ATTRIBUTE_NORETURN; | |
22421b79 RK |
419 | extern void tree_check4_failed (const tree, enum tree_code, enum tree_code, |
420 | enum tree_code, enum tree_code, | |
421 | const char *, int, const char *) | |
422 | ATTRIBUTE_NORETURN; | |
eb34af89 RK |
423 | extern void tree_check5_failed (const tree, enum tree_code, enum tree_code, |
424 | enum tree_code, enum tree_code, enum tree_code, | |
425 | const char *, int, const char *) | |
426 | ATTRIBUTE_NORETURN; | |
46c5ad27 AJ |
427 | extern void tree_class_check_failed (const tree, int, |
428 | const char *, int, const char *) | |
8f985ec4 | 429 | ATTRIBUTE_NORETURN; |
46c5ad27 AJ |
430 | extern void tree_vec_elt_check_failed (int, int, const char *, |
431 | int, const char *) | |
fa7b533b | 432 | ATTRIBUTE_NORETURN; |
8f985ec4 | 433 | |
46c5ad27 AJ |
434 | extern void tree_operand_check_failed (int, enum tree_code, |
435 | const char *, int, const char *) | |
06790e5f | 436 | ATTRIBUTE_NORETURN; |
46c5ad27 | 437 | |
f4524c9e | 438 | #else /* not ENABLE_TREE_CHECKING, or not gcc */ |
12b195d9 | 439 | |
eb34af89 RK |
440 | #define TREE_CHECK(T, CODE) (T) |
441 | #define TREE_CHECK2(T, CODE1, CODE2) (T) | |
442 | #define TREE_CHECK3(T, CODE1, CODE2, CODE3) (T) | |
22421b79 | 443 | #define TREE_CHECK4(T, CODE1, CODE2, CODE3, CODE4) (T) |
eb34af89 RK |
444 | #define TREE_CHECK5(T, CODE1, CODE2, CODE3, CODE4, CODE5) (T) |
445 | #define TREE_CLASS_CHECK(T, CODE) (T) | |
446 | #define EXPR_CHECK(T) (T) | |
447 | #define TREE_VEC_ELT_CHECK(T, I) ((T)->vec.a[I]) | |
448 | #define TREE_OPERAND_CHECK(T, I) ((T)->exp.operands[I]) | |
449 | #define TREE_OPERAND_CHECK_CODE(T, CODE, I) ((T)->exp.operands[I]) | |
7f42b6d7 | 450 | #define TREE_RTL_OPERAND_CHECK(T, CODE, I) (*(rtx *) &((T)->exp.operands[I])) |
8f985ec4 ZW |
451 | |
452 | #endif | |
453 | ||
454 | #include "tree-check.h" | |
455 | ||
7f42b6d7 RK |
456 | #define TYPE_CHECK(T) TREE_CLASS_CHECK (T, 't') |
457 | #define DECL_CHECK(T) TREE_CLASS_CHECK (T, 'd') | |
458 | #define CST_CHECK(T) TREE_CLASS_CHECK (T, 'c') | |
459 | #define STMT_CHECK(T) TREE_CLASS_CHECK (T, 's') | |
eb34af89 | 460 | #define FUNC_OR_METHOD_CHECK(T) TREE_CHECK2 (T, FUNCTION_TYPE, METHOD_TYPE) |
22421b79 | 461 | #define PTR_OR_REF_CHECK(T) TREE_CHECK2 (T, POINTER_TYPE, REFERENCE_TYPE) |
eb34af89 RK |
462 | |
463 | #define SET_ARRAY_OR_VECTOR_CHECK(T) \ | |
464 | TREE_CHECK3 (T, ARRAY_TYPE, SET_TYPE, VECTOR_TYPE) | |
465 | ||
466 | #define REC_OR_UNION_CHECK(T) \ | |
467 | TREE_CHECK3 (T, RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE) | |
468 | ||
469 | #define NUMERICAL_TYPE_CHECK(T) \ | |
470 | TREE_CHECK5 (T, INTEGER_TYPE, ENUMERAL_TYPE, BOOLEAN_TYPE, \ | |
471 | CHAR_TYPE, REAL_TYPE) | |
12b195d9 | 472 | |
8da1b058 RS |
473 | /* In all nodes that are expressions, this is the data type of the expression. |
474 | In POINTER_TYPE nodes, this is the type that the pointer points to. | |
0b4565c9 BS |
475 | In ARRAY_TYPE nodes, this is the type of the elements. |
476 | In VECTOR_TYPE nodes, this is the type of the elements. */ | |
8da1b058 RS |
477 | #define TREE_TYPE(NODE) ((NODE)->common.type) |
478 | ||
1c0cc57e KG |
479 | /* Here is how primitive or already-canonicalized types' hash codes |
480 | are made. */ | |
fd917e0d JM |
481 | #define TYPE_HASH(TYPE) (TYPE_UID (TYPE)) |
482 | ||
483 | /* A simple hash function for an arbitrary tree node. This must not be | |
484 | used in hash tables which are saved to a PCH. */ | |
485 | #define TREE_HASH(NODE) ((size_t) (NODE) & 0777777) | |
1c0cc57e | 486 | |
8da1b058 RS |
487 | /* Nodes are chained together for many purposes. |
488 | Types are chained together to record them for being output to the debugger | |
489 | (see the function `chain_type'). | |
490 | Decls in the same scope are chained together to record the contents | |
491 | of the scope. | |
492 | Statement nodes for successive statements used to be chained together. | |
493 | Often lists of things are represented by TREE_LIST nodes that | |
494 | are chained together. */ | |
495 | ||
496 | #define TREE_CHAIN(NODE) ((NODE)->common.chain) | |
497 | ||
498 | /* Given an expression as a tree, strip any NON_LVALUE_EXPRs and NOP_EXPRs | |
499 | that don't change the machine mode. */ | |
500 | ||
9a6bb3f7 | 501 | #define STRIP_NOPS(EXP) \ |
8da1b058 RS |
502 | while ((TREE_CODE (EXP) == NOP_EXPR \ |
503 | || TREE_CODE (EXP) == CONVERT_EXPR \ | |
504 | || TREE_CODE (EXP) == NON_LVALUE_EXPR) \ | |
9a6bb3f7 | 505 | && TREE_OPERAND (EXP, 0) != error_mark_node \ |
8da1b058 RS |
506 | && (TYPE_MODE (TREE_TYPE (EXP)) \ |
507 | == TYPE_MODE (TREE_TYPE (TREE_OPERAND (EXP, 0))))) \ | |
713cc17b | 508 | (EXP) = TREE_OPERAND (EXP, 0) |
0fafb45e | 509 | |
14a774a9 RK |
510 | /* Like STRIP_NOPS, but don't let the signedness change either. */ |
511 | ||
512 | #define STRIP_SIGN_NOPS(EXP) \ | |
513 | while ((TREE_CODE (EXP) == NOP_EXPR \ | |
514 | || TREE_CODE (EXP) == CONVERT_EXPR \ | |
515 | || TREE_CODE (EXP) == NON_LVALUE_EXPR) \ | |
9a6bb3f7 | 516 | && TREE_OPERAND (EXP, 0) != error_mark_node \ |
14a774a9 RK |
517 | && (TYPE_MODE (TREE_TYPE (EXP)) \ |
518 | == TYPE_MODE (TREE_TYPE (TREE_OPERAND (EXP, 0)))) \ | |
519 | && (TREE_UNSIGNED (TREE_TYPE (EXP)) \ | |
520 | == TREE_UNSIGNED (TREE_TYPE (TREE_OPERAND (EXP, 0))))) \ | |
713cc17b | 521 | (EXP) = TREE_OPERAND (EXP, 0) |
14a774a9 | 522 | |
03307888 JM |
523 | /* Like STRIP_NOPS, but don't alter the TREE_TYPE main variant either. */ |
524 | ||
525 | #define STRIP_MAIN_TYPE_NOPS(EXP) \ | |
526 | while ((TREE_CODE (EXP) == NOP_EXPR \ | |
527 | || TREE_CODE (EXP) == CONVERT_EXPR \ | |
528 | || TREE_CODE (EXP) == NON_LVALUE_EXPR) \ | |
529 | && TREE_OPERAND (EXP, 0) != error_mark_node \ | |
530 | && (TYPE_MAIN_VARIANT (TREE_TYPE (EXP)) \ | |
531 | == TYPE_MAIN_VARIANT (TREE_TYPE (TREE_OPERAND (EXP, 0))))) \ | |
532 | (EXP) = TREE_OPERAND (EXP, 0) | |
533 | ||
0fafb45e RS |
534 | /* Like STRIP_NOPS, but don't alter the TREE_TYPE either. */ |
535 | ||
536 | #define STRIP_TYPE_NOPS(EXP) \ | |
537 | while ((TREE_CODE (EXP) == NOP_EXPR \ | |
538 | || TREE_CODE (EXP) == CONVERT_EXPR \ | |
539 | || TREE_CODE (EXP) == NON_LVALUE_EXPR) \ | |
9a6bb3f7 | 540 | && TREE_OPERAND (EXP, 0) != error_mark_node \ |
0fafb45e RS |
541 | && (TREE_TYPE (EXP) \ |
542 | == TREE_TYPE (TREE_OPERAND (EXP, 0)))) \ | |
713cc17b | 543 | (EXP) = TREE_OPERAND (EXP, 0) |
87291138 RK |
544 | |
545 | /* Nonzero if TYPE represents an integral type. Note that we do not | |
546 | include COMPLEX types here. */ | |
547 | ||
548 | #define INTEGRAL_TYPE_P(TYPE) \ | |
549 | (TREE_CODE (TYPE) == INTEGER_TYPE || TREE_CODE (TYPE) == ENUMERAL_TYPE \ | |
550 | || TREE_CODE (TYPE) == BOOLEAN_TYPE || TREE_CODE (TYPE) == CHAR_TYPE) | |
551 | ||
00229de4 RS |
552 | /* Nonzero if TYPE represents a scalar floating-point type. */ |
553 | ||
554 | #define SCALAR_FLOAT_TYPE_P(TYPE) (TREE_CODE (TYPE) == REAL_TYPE) | |
555 | ||
556 | /* Nonzero if TYPE represents a complex floating-point type. */ | |
557 | ||
558 | #define COMPLEX_FLOAT_TYPE_P(TYPE) \ | |
559 | (TREE_CODE (TYPE) == COMPLEX_TYPE \ | |
560 | && TREE_CODE (TREE_TYPE (TYPE)) == REAL_TYPE) | |
561 | ||
87291138 RK |
562 | /* Nonzero if TYPE represents a floating-point type, including complex |
563 | floating-point types. */ | |
564 | ||
565 | #define FLOAT_TYPE_P(TYPE) \ | |
00229de4 | 566 | (SCALAR_FLOAT_TYPE_P (TYPE) || COMPLEX_FLOAT_TYPE_P (TYPE)) |
947765f9 | 567 | |
2ba84f36 | 568 | /* Nonzero if TYPE represents an aggregate (multi-component) type. */ |
947765f9 PB |
569 | |
570 | #define AGGREGATE_TYPE_P(TYPE) \ | |
571 | (TREE_CODE (TYPE) == ARRAY_TYPE || TREE_CODE (TYPE) == RECORD_TYPE \ | |
572 | || TREE_CODE (TYPE) == UNION_TYPE || TREE_CODE (TYPE) == QUAL_UNION_TYPE \ | |
573 | || TREE_CODE (TYPE) == SET_TYPE) | |
9e6cfc43 | 574 | |
66804d9e NS |
575 | /* Nonzero if TYPE represents a pointer or reference type. |
576 | (It should be renamed to INDIRECT_TYPE_P.) */ | |
9e6cfc43 JM |
577 | |
578 | #define POINTER_TYPE_P(TYPE) \ | |
579 | (TREE_CODE (TYPE) == POINTER_TYPE || TREE_CODE (TYPE) == REFERENCE_TYPE) | |
555f90c5 | 580 | |
d0f062fb NS |
581 | /* Nonzero if this type is a complete type. */ |
582 | #define COMPLETE_TYPE_P(NODE) (TYPE_SIZE (NODE) != NULL_TREE) | |
583 | ||
71653180 | 584 | /* Nonzero if this type is the (possibly qualified) void type. */ |
e7cd085f | 585 | #define VOID_TYPE_P(NODE) (TREE_CODE (NODE) == VOID_TYPE) |
71653180 | 586 | |
d0f062fb NS |
587 | /* Nonzero if this type is complete or is cv void. */ |
588 | #define COMPLETE_OR_VOID_TYPE_P(NODE) \ | |
c46080ab | 589 | (COMPLETE_TYPE_P (NODE) || VOID_TYPE_P (NODE)) |
d0f062fb NS |
590 | |
591 | /* Nonzero if this type is complete or is an array with unspecified bound. */ | |
592 | #define COMPLETE_OR_UNBOUND_ARRAY_TYPE_P(NODE) \ | |
713cc17b | 593 | (COMPLETE_TYPE_P (TREE_CODE (NODE) == ARRAY_TYPE ? TREE_TYPE (NODE) : (NODE))) |
d0f062fb | 594 | |
555f90c5 JM |
595 | /* Nonzero if TYPE represents a type. */ |
596 | ||
597 | #define TYPE_P(TYPE) (TREE_CODE_CLASS (TREE_CODE (TYPE)) == 't') | |
8da1b058 RS |
598 | \f |
599 | /* Define many boolean fields that all tree nodes have. */ | |
600 | ||
601 | /* In VAR_DECL nodes, nonzero means address of this is needed. | |
602 | So it cannot be in a register. | |
603 | In a FUNCTION_DECL, nonzero means its address is needed. | |
604 | So it must be compiled even if it is an inline function. | |
1febe16b RK |
605 | In a FIELD_DECL node, it means that the programmer is permitted to |
606 | construct the address of this field. This is used for aliasing | |
607 | purposes: see record_component_aliases. | |
8da1b058 | 608 | In CONSTRUCTOR nodes, it means object constructed must be in memory. |
41077ce4 | 609 | In LABEL_DECL nodes, it means a goto for this label has been seen |
8da1b058 RS |
610 | from a place outside all binding contours that restore stack levels. |
611 | In ..._TYPE nodes, it means that objects of this type must | |
612 | be fully addressable. This means that pieces of this | |
613 | object cannot go into register parameters, for example. | |
614 | In IDENTIFIER_NODEs, this means that some extern decl for this name | |
615 | had its address taken. That matters for inline functions. */ | |
616 | #define TREE_ADDRESSABLE(NODE) ((NODE)->common.addressable_flag) | |
617 | ||
618 | /* In a VAR_DECL, nonzero means allocate static storage. | |
9f86614b | 619 | In a FUNCTION_DECL, nonzero if function has been defined. |
22421b79 RK |
620 | In a CONSTRUCTOR, nonzero means allocate static storage. |
621 | ||
622 | ??? This is also used in lots of other nodes in unclear ways which | |
623 | should be cleaned up some day. */ | |
8da1b058 RS |
624 | #define TREE_STATIC(NODE) ((NODE)->common.static_flag) |
625 | ||
659e5a7a JM |
626 | /* In a TARGET_EXPR, WITH_CLEANUP_EXPR, CLEANUP_STMT, or element of a |
627 | block's cleanup list, means that the pertinent cleanup should only be | |
628 | executed if an exception is thrown, not on normal exit of its scope. */ | |
629 | #define CLEANUP_EH_ONLY(NODE) ((NODE)->common.static_flag) | |
630 | ||
22421b79 RK |
631 | /* In a CONVERT_EXPR, NOP_EXPR, NON_LVALUE_EXPR or COMPOUND_EXPR, this means |
632 | the node was made implicitly and should not lead to an "unused value" | |
633 | warning. | |
634 | ||
635 | ??? Apparently this is also used on other expression types (such as | |
636 | MODIFY_EXPR. This needs to be cleaned up sometime. */ | |
637 | #define TREE_NO_UNUSED_WARNING(NODE) (EXPR_CHECK (NODE)->common.static_flag) | |
8da1b058 RS |
638 | |
639 | /* Nonzero for a TREE_LIST or TREE_VEC node means that the derivation | |
640 | chain is via a `virtual' declaration. */ | |
22421b79 RK |
641 | #define TREE_VIA_VIRTUAL(NODE) \ |
642 | (TREE_CHECK2 (NODE, TREE_LIST, TREE_VEC)->common.static_flag) | |
8da1b058 | 643 | |
69ef87e2 AH |
644 | /* In an INTEGER_CST, REAL_CST, COMPLEX_CST, or VECTOR_CST this means |
645 | there was an overflow in folding. This is distinct from | |
646 | TREE_OVERFLOW because ANSI C requires a diagnostic when overflows | |
647 | occur in constant expressions. */ | |
22421b79 | 648 | #define TREE_CONSTANT_OVERFLOW(NODE) (CST_CHECK (NODE)->common.static_flag) |
261450e8 | 649 | |
d3568529 JM |
650 | /* In an IDENTIFIER_NODE, this means that assemble_name was called with |
651 | this string as an argument. */ | |
c46080ab | 652 | #define TREE_SYMBOL_REFERENCED(NODE) \ |
b9daac31 | 653 | (IDENTIFIER_NODE_CHECK (NODE)->common.static_flag) |
d3568529 | 654 | |
22421b79 RK |
655 | /* Nonzero in a pointer or reference type means the data pointed to |
656 | by this type can alias anything. */ | |
657 | #define TYPE_REF_CAN_ALIAS_ALL(NODE) \ | |
658 | (PTR_OR_REF_CHECK (NODE)->common.static_flag) | |
659 | ||
69ef87e2 AH |
660 | /* In an INTEGER_CST, REAL_CST, COMPLEX_CST, or VECTOR_CST, this means |
661 | there was an overflow in folding, and no warning has been issued | |
22421b79 RK |
662 | for this subexpression. TREE_OVERFLOW implies TREE_CONSTANT_OVERFLOW, |
663 | but not vice versa. | |
664 | ||
665 | ??? Apparently, lots of code assumes this is defined in all | |
666 | expressions. */ | |
261450e8 PE |
667 | #define TREE_OVERFLOW(NODE) ((NODE)->common.public_flag) |
668 | ||
8da1b058 RS |
669 | /* In a VAR_DECL or FUNCTION_DECL, |
670 | nonzero means name is to be accessible from outside this module. | |
4c521bad | 671 | In an IDENTIFIER_NODE, nonzero means an external declaration |
6dc42e49 | 672 | accessible from outside this module was previously seen |
8da1b058 RS |
673 | for this name in an inner scope. */ |
674 | #define TREE_PUBLIC(NODE) ((NODE)->common.public_flag) | |
675 | ||
8da1b058 RS |
676 | /* In any expression, nonzero means it has side effects or reevaluation |
677 | of the whole expression could produce a different value. | |
678 | This is set if any subexpression is a function call, a side effect | |
679 | or a reference to a volatile variable. | |
680 | In a ..._DECL, this is set only if the declaration said `volatile'. */ | |
681 | #define TREE_SIDE_EFFECTS(NODE) ((NODE)->common.side_effects_flag) | |
682 | ||
683 | /* Nonzero means this expression is volatile in the C sense: | |
684 | its address should be of type `volatile WHATEVER *'. | |
685 | In other words, the declared item is volatile qualified. | |
686 | This is used in _DECL nodes and _REF nodes. | |
687 | ||
688 | In a ..._TYPE node, means this type is volatile-qualified. | |
689 | But use TYPE_VOLATILE instead of this macro when the node is a type, | |
690 | because eventually we may make that a different bit. | |
691 | ||
692 | If this bit is set in an expression, so is TREE_SIDE_EFFECTS. */ | |
693 | #define TREE_THIS_VOLATILE(NODE) ((NODE)->common.volatile_flag) | |
694 | ||
695 | /* In a VAR_DECL, PARM_DECL or FIELD_DECL, or any kind of ..._REF node, | |
696 | nonzero means it may not be the lhs of an assignment. | |
697 | In a ..._TYPE node, means this type is const-qualified | |
698 | (but the macro TYPE_READONLY should be used instead of this macro | |
699 | when the node is a type). */ | |
700 | #define TREE_READONLY(NODE) ((NODE)->common.readonly_flag) | |
701 | ||
272d0bee | 702 | /* Nonzero if NODE is a _DECL with TREE_READONLY set. */ |
c46080ab | 703 | #define TREE_READONLY_DECL_P(NODE) (TREE_READONLY (NODE) && DECL_P (NODE)) |
588d3ade | 704 | |
8da1b058 RS |
705 | /* Value of expression is constant. |
706 | Always appears in all ..._CST nodes. | |
707 | May also appear in an arithmetic expression, an ADDR_EXPR or a CONSTRUCTOR | |
708 | if the value is constant. */ | |
709 | #define TREE_CONSTANT(NODE) ((NODE)->common.constant_flag) | |
710 | ||
8da1b058 | 711 | /* In INTEGER_TYPE or ENUMERAL_TYPE nodes, means an unsigned type. |
7f685e17 | 712 | In FIELD_DECL nodes, means an unsigned bit field. */ |
8da1b058 RS |
713 | #define TREE_UNSIGNED(NODE) ((NODE)->common.unsigned_flag) |
714 | ||
c46080ab RK |
715 | #define TYPE_TRAP_SIGNED(NODE) \ |
716 | (flag_trapv && ! TREE_UNSIGNED (TYPE_CHECK (NODE))) | |
91ce572a | 717 | |
8da1b058 RS |
718 | /* Nonzero in a VAR_DECL means assembler code has been written. |
719 | Nonzero in a FUNCTION_DECL means that the function has been compiled. | |
720 | This is interesting in an inline function, since it might not need | |
721 | to be compiled separately. | |
3635a54b | 722 | Nonzero in a RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE or ENUMERAL_TYPE |
9f86614b RS |
723 | if the sdb debugging info for the type has been written. |
724 | In a BLOCK node, nonzero if reorder_blocks has already seen this block. */ | |
8da1b058 RS |
725 | #define TREE_ASM_WRITTEN(NODE) ((NODE)->common.asm_written_flag) |
726 | ||
727 | /* Nonzero in a _DECL if the name is used in its scope. | |
728 | Nonzero in an expr node means inhibit warning if value is unused. | |
729 | In IDENTIFIER_NODEs, this means that some extern decl for this name | |
730 | was used. */ | |
731 | #define TREE_USED(NODE) ((NODE)->common.used_flag) | |
732 | ||
12a22e76 JM |
733 | /* In a FUNCTION_DECL, nonzero means a call to the function cannot throw |
734 | an exception. In a CALL_EXPR, nonzero means the call cannot throw. */ | |
735 | #define TREE_NOTHROW(NODE) ((NODE)->common.nothrow_flag) | |
c3d32120 | 736 | |
4977bab6 ZW |
737 | /* In a CALL_EXPR, means that the address of the return slot is part of the |
738 | argument list. */ | |
739 | #define CALL_EXPR_HAS_RETURN_SLOT_ADDR(NODE) ((NODE)->common.private_flag) | |
740 | ||
dd292d0a MM |
741 | /* In a CALL_EXPR, means that the call is the jump from a thunk to the |
742 | thunked-to function. */ | |
743 | #define CALL_FROM_THUNK_P(NODE) ((NODE)->common.protected_flag) | |
744 | ||
c3d32120 RK |
745 | /* In a type, nonzero means that all objects of the type are guaranteed by the |
746 | language or front-end to be properly aligned, so we can indicate that a MEM | |
747 | of this type is aligned at least to the alignment of the type, even if it | |
748 | doesn't appear that it is. We see this, for example, in object-oriented | |
749 | languages where a tag field may show this is an object of a more-aligned | |
750 | variant of the more generic type. */ | |
751 | #define TYPE_ALIGN_OK(NODE) (TYPE_CHECK (NODE)->common.nothrow_flag) | |
8da1b058 | 752 | |
9f86614b | 753 | /* Used in classes in C++. */ |
8da1b058 | 754 | #define TREE_PRIVATE(NODE) ((NODE)->common.private_flag) |
9f86614b RS |
755 | /* Used in classes in C++. |
756 | In a BLOCK node, this is BLOCK_HANDLER_BLOCK. */ | |
8da1b058 RS |
757 | #define TREE_PROTECTED(NODE) ((NODE)->common.protected_flag) |
758 | ||
e0a2f705 | 759 | /* Nonzero in an IDENTIFIER_NODE if the use of the name is defined as a |
e23bd218 IR |
760 | deprecated feature by __attribute__((deprecated)). */ |
761 | #define TREE_DEPRECATED(NODE) ((NODE)->common.deprecated_flag) | |
762 | ||
9f86614b | 763 | /* These flags are available for each language front end to use internally. */ |
8da1b058 RS |
764 | #define TREE_LANG_FLAG_0(NODE) ((NODE)->common.lang_flag_0) |
765 | #define TREE_LANG_FLAG_1(NODE) ((NODE)->common.lang_flag_1) | |
766 | #define TREE_LANG_FLAG_2(NODE) ((NODE)->common.lang_flag_2) | |
767 | #define TREE_LANG_FLAG_3(NODE) ((NODE)->common.lang_flag_3) | |
768 | #define TREE_LANG_FLAG_4(NODE) ((NODE)->common.lang_flag_4) | |
769 | #define TREE_LANG_FLAG_5(NODE) ((NODE)->common.lang_flag_5) | |
770 | #define TREE_LANG_FLAG_6(NODE) ((NODE)->common.lang_flag_6) | |
771 | \f | |
772 | /* Define additional fields and accessors for nodes representing constants. */ | |
773 | ||
e5d70561 RK |
774 | /* In an INTEGER_CST node. These two together make a 2-word integer. |
775 | If the data type is signed, the value is sign-extended to 2 words | |
8da1b058 | 776 | even though not all of them may really be in use. |
e5d70561 | 777 | In an unsigned constant shorter than 2 words, the extra bits are 0. */ |
2afaa41c GM |
778 | #define TREE_INT_CST(NODE) (INTEGER_CST_CHECK (NODE)->int_cst.int_cst) |
779 | #define TREE_INT_CST_LOW(NODE) (TREE_INT_CST (NODE).low) | |
780 | #define TREE_INT_CST_HIGH(NODE) (TREE_INT_CST (NODE).high) | |
8da1b058 | 781 | |
b9daac31 GS |
782 | #define INT_CST_LT(A, B) \ |
783 | (TREE_INT_CST_HIGH (A) < TREE_INT_CST_HIGH (B) \ | |
784 | || (TREE_INT_CST_HIGH (A) == TREE_INT_CST_HIGH (B) \ | |
c46080ab | 785 | && TREE_INT_CST_LOW (A) < TREE_INT_CST_LOW (B))) |
8da1b058 | 786 | |
b9daac31 GS |
787 | #define INT_CST_LT_UNSIGNED(A, B) \ |
788 | (((unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (A) \ | |
789 | < (unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (B)) \ | |
790 | || (((unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (A) \ | |
41077ce4 | 791 | == (unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (B)) \ |
c46080ab | 792 | && TREE_INT_CST_LOW (A) < TREE_INT_CST_LOW (B))) |
46c5ad27 | 793 | |
e2500fed | 794 | struct tree_int_cst GTY(()) |
8da1b058 | 795 | { |
2bf105ab | 796 | struct tree_common common; |
2afaa41c GM |
797 | /* A sub-struct is necessary here because the function `const_hash' |
798 | wants to scan both words as a unit and taking the address of the | |
799 | sub-struct yields the properly inclusive bounded pointer. */ | |
e2500fed | 800 | struct tree_int_cst_lowhi { |
2afaa41c GM |
801 | unsigned HOST_WIDE_INT low; |
802 | HOST_WIDE_INT high; | |
803 | } int_cst; | |
8da1b058 RS |
804 | }; |
805 | ||
0ee6fdb5 | 806 | /* In a REAL_CST node. struct real_value is an opaque entity, with |
11ad4784 ZW |
807 | manipulators defined in real.h. We don't want tree.h depending on |
808 | real.h and transitively on tm.h. */ | |
0ee6fdb5 | 809 | struct real_value; |
c46080ab | 810 | |
11ad4784 ZW |
811 | #define TREE_REAL_CST_PTR(NODE) (REAL_CST_CHECK (NODE)->real_cst.real_cst_ptr) |
812 | #define TREE_REAL_CST(NODE) (*TREE_REAL_CST_PTR (NODE)) | |
8da1b058 | 813 | |
e2500fed | 814 | struct tree_real_cst GTY(()) |
8da1b058 | 815 | { |
2bf105ab | 816 | struct tree_common common; |
0ee6fdb5 | 817 | struct real_value * real_cst_ptr; |
8da1b058 RS |
818 | }; |
819 | ||
820 | /* In a STRING_CST */ | |
12b195d9 | 821 | #define TREE_STRING_LENGTH(NODE) (STRING_CST_CHECK (NODE)->string.length) |
839ee4bc | 822 | #define TREE_STRING_POINTER(NODE) (STRING_CST_CHECK (NODE)->string.pointer) |
8da1b058 | 823 | |
e2500fed | 824 | struct tree_string GTY(()) |
8da1b058 | 825 | { |
2bf105ab | 826 | struct tree_common common; |
8da1b058 | 827 | int length; |
839ee4bc | 828 | const char *pointer; |
8da1b058 RS |
829 | }; |
830 | ||
831 | /* In a COMPLEX_CST node. */ | |
12b195d9 ML |
832 | #define TREE_REALPART(NODE) (COMPLEX_CST_CHECK (NODE)->complex.real) |
833 | #define TREE_IMAGPART(NODE) (COMPLEX_CST_CHECK (NODE)->complex.imag) | |
8da1b058 | 834 | |
e2500fed | 835 | struct tree_complex GTY(()) |
8da1b058 | 836 | { |
2bf105ab | 837 | struct tree_common common; |
2f78c311 ZW |
838 | tree real; |
839 | tree imag; | |
8da1b058 | 840 | }; |
69ef87e2 AH |
841 | |
842 | /* In a VECTOR_CST node. */ | |
843 | #define TREE_VECTOR_CST_ELTS(NODE) (VECTOR_CST_CHECK (NODE)->vector.elements) | |
844 | ||
e2500fed | 845 | struct tree_vector GTY(()) |
69ef87e2 AH |
846 | { |
847 | struct tree_common common; | |
69ef87e2 AH |
848 | tree elements; |
849 | }; | |
8da1b058 | 850 | \f |
2a967f3d NB |
851 | #include "hashtable.h" |
852 | ||
8da1b058 RS |
853 | /* Define fields and accessors for some special-purpose tree nodes. */ |
854 | ||
2a967f3d | 855 | #define IDENTIFIER_LENGTH(NODE) \ |
c46080ab | 856 | (IDENTIFIER_NODE_CHECK (NODE)->identifier.id.len) |
2a967f3d | 857 | #define IDENTIFIER_POINTER(NODE) \ |
b9daac31 | 858 | ((const char *) IDENTIFIER_NODE_CHECK (NODE)->identifier.id.str) |
5e0c54e5 GDR |
859 | #define IDENTIFIER_HASH_VALUE(NODE) \ |
860 | (IDENTIFIER_NODE_CHECK (NODE)->identifier.id.hash_value) | |
2a967f3d NB |
861 | |
862 | /* Translate a hash table identifier pointer to a tree_identifier | |
863 | pointer, and vice versa. */ | |
864 | ||
865 | #define HT_IDENT_TO_GCC_IDENT(NODE) \ | |
c46080ab RK |
866 | ((tree) ((char *) (NODE) - sizeof (struct tree_common))) |
867 | #define GCC_IDENT_TO_HT_IDENT(NODE) (&((struct tree_identifier *) (NODE))->id) | |
8da1b058 | 868 | |
e2500fed | 869 | struct tree_identifier GTY(()) |
8da1b058 | 870 | { |
2bf105ab | 871 | struct tree_common common; |
2a967f3d | 872 | struct ht_identifier id; |
8da1b058 RS |
873 | }; |
874 | ||
875 | /* In a TREE_LIST node. */ | |
12b195d9 ML |
876 | #define TREE_PURPOSE(NODE) (TREE_LIST_CHECK (NODE)->list.purpose) |
877 | #define TREE_VALUE(NODE) (TREE_LIST_CHECK (NODE)->list.value) | |
8da1b058 | 878 | |
e2500fed | 879 | struct tree_list GTY(()) |
8da1b058 | 880 | { |
2bf105ab | 881 | struct tree_common common; |
2f78c311 ZW |
882 | tree purpose; |
883 | tree value; | |
8da1b058 RS |
884 | }; |
885 | ||
886 | /* In a TREE_VEC node. */ | |
12b195d9 | 887 | #define TREE_VEC_LENGTH(NODE) (TREE_VEC_CHECK (NODE)->vec.length) |
c46080ab RK |
888 | #define TREE_VEC_END(NODE) \ |
889 | ((void) TREE_VEC_CHECK (NODE), &((NODE)->vec.a[(NODE)->vec.length])) | |
8da1b058 | 890 | |
fa7b533b ZW |
891 | #define TREE_VEC_ELT(NODE,I) TREE_VEC_ELT_CHECK (NODE, I) |
892 | ||
e2500fed | 893 | struct tree_vec GTY(()) |
8da1b058 | 894 | { |
2bf105ab | 895 | struct tree_common common; |
8da1b058 | 896 | int length; |
e2500fed | 897 | tree GTY ((length ("TREE_VEC_LENGTH ((tree)&%h)"))) a[1]; |
8da1b058 RS |
898 | }; |
899 | ||
900 | /* Define fields and accessors for some nodes that represent expressions. */ | |
901 | ||
902 | /* In a SAVE_EXPR node. */ | |
06790e5f ZW |
903 | #define SAVE_EXPR_CONTEXT(NODE) TREE_OPERAND_CHECK_CODE (NODE, SAVE_EXPR, 1) |
904 | #define SAVE_EXPR_RTL(NODE) TREE_RTL_OPERAND_CHECK (NODE, SAVE_EXPR, 2) | |
905 | ||
c46080ab | 906 | #define SAVE_EXPR_NOPLACEHOLDER(NODE) TREE_UNSIGNED (SAVE_EXPR_CHECK (NODE)) |
d26f8097 MM |
907 | /* Nonzero if the SAVE_EXPRs value should be kept, even if it occurs |
908 | both in normal code and in a handler. (Normally, in a handler, all | |
d3974db0 | 909 | SAVE_EXPRs are unsaved, meaning that their values are |
d26f8097 | 910 | recalculated.) */ |
c46080ab | 911 | #define SAVE_EXPR_PERSISTENT_P(NODE) TREE_ASM_WRITTEN (SAVE_EXPR_CHECK (NODE)) |
8da1b058 RS |
912 | |
913 | /* In a RTL_EXPR node. */ | |
06790e5f ZW |
914 | #define RTL_EXPR_SEQUENCE(NODE) TREE_RTL_OPERAND_CHECK (NODE, RTL_EXPR, 0) |
915 | #define RTL_EXPR_RTL(NODE) TREE_RTL_OPERAND_CHECK (NODE, RTL_EXPR, 1) | |
0fab64a3 | 916 | #define RTL_EXPR_ALT_RTL(NODE) TREE_RTL_OPERAND_CHECK (NODE, RTL_EXPR, 2) |
8da1b058 | 917 | |
6ad7895a APB |
918 | /* In a WITH_CLEANUP_EXPR node. */ |
919 | #define WITH_CLEANUP_EXPR_RTL(NODE) \ | |
06790e5f | 920 | TREE_RTL_OPERAND_CHECK (NODE, WITH_CLEANUP_EXPR, 2) |
6ad7895a | 921 | |
8da1b058 | 922 | /* In a CONSTRUCTOR node. */ |
0864034e | 923 | #define CONSTRUCTOR_ELTS(NODE) TREE_OPERAND_CHECK_CODE (NODE, CONSTRUCTOR, 0) |
8da1b058 | 924 | |
61131fa2 | 925 | /* In ordinary expression nodes. */ |
06790e5f | 926 | #define TREE_OPERAND(NODE, I) TREE_OPERAND_CHECK (NODE, I) |
12b195d9 | 927 | #define TREE_COMPLEXITY(NODE) (EXPR_CHECK (NODE)->exp.complexity) |
61131fa2 | 928 | |
40edd0bd | 929 | /* In a LABELED_BLOCK_EXPR node. */ |
c46080ab | 930 | #define LABELED_BLOCK_LABEL(NODE) \ |
06790e5f | 931 | TREE_OPERAND_CHECK_CODE (NODE, LABELED_BLOCK_EXPR, 0) |
c46080ab | 932 | #define LABELED_BLOCK_BODY(NODE) \ |
06790e5f | 933 | TREE_OPERAND_CHECK_CODE (NODE, LABELED_BLOCK_EXPR, 1) |
40edd0bd | 934 | |
e0a2f705 | 935 | /* In an EXIT_BLOCK_EXPR node. */ |
c46080ab | 936 | #define EXIT_BLOCK_LABELED_BLOCK(NODE) \ |
06790e5f ZW |
937 | TREE_OPERAND_CHECK_CODE (NODE, EXIT_BLOCK_EXPR, 0) |
938 | #define EXIT_BLOCK_RETURN(NODE) TREE_OPERAND_CHECK_CODE (NODE, EXIT_BLOCK_EXPR, 1) | |
40edd0bd APB |
939 | |
940 | /* In a LOOP_EXPR node. */ | |
06790e5f | 941 | #define LOOP_EXPR_BODY(NODE) TREE_OPERAND_CHECK_CODE (NODE, LOOP_EXPR, 0) |
40edd0bd | 942 | |
e0a2f705 | 943 | /* In an EXPR_WITH_FILE_LOCATION node. */ |
f724a9d2 RK |
944 | #define EXPR_WFL_EMIT_LINE_NOTE(NODE) \ |
945 | (EXPR_WITH_FILE_LOCATION_CHECK (NODE)->common.public_flag) | |
c46080ab | 946 | #define EXPR_WFL_NODE(NODE) \ |
06790e5f | 947 | TREE_OPERAND_CHECK_CODE (NODE, EXPR_WITH_FILE_LOCATION, 0) |
c46080ab | 948 | #define EXPR_WFL_FILENAME_NODE(NODE) \ |
06790e5f | 949 | TREE_OPERAND_CHECK_CODE (NODE, EXPR_WITH_FILE_LOCATION, 1) |
86fff623 | 950 | #define EXPR_WFL_FILENAME(NODE) \ |
b9daac31 | 951 | IDENTIFIER_POINTER (EXPR_WFL_FILENAME_NODE (NODE)) |
f724a9d2 RK |
952 | /* ??? Java uses this in all expressions. */ |
953 | #define EXPR_WFL_LINECOL(NODE) (EXPR_CHECK (NODE)->exp.complexity) | |
954 | #define EXPR_WFL_LINENO(NODE) (EXPR_WFL_LINECOL (NODE) >> 12) | |
955 | #define EXPR_WFL_COLNO(NODE) (EXPR_WFL_LINECOL (NODE) & 0xfff) | |
bf1e5319 APB |
956 | #define EXPR_WFL_SET_LINECOL(NODE, LINE, COL) \ |
957 | (EXPR_WFL_LINECOL(NODE) = ((LINE) << 12) | ((COL) & 0xfff)) | |
bf1e5319 | 958 | |
6f30f1f1 | 959 | /* In a TARGET_EXPR node. */ |
06790e5f ZW |
960 | #define TARGET_EXPR_SLOT(NODE) TREE_OPERAND_CHECK_CODE (NODE, TARGET_EXPR, 0) |
961 | #define TARGET_EXPR_INITIAL(NODE) TREE_OPERAND_CHECK_CODE (NODE, TARGET_EXPR, 1) | |
962 | #define TARGET_EXPR_CLEANUP(NODE) TREE_OPERAND_CHECK_CODE (NODE, TARGET_EXPR, 2) | |
6f30f1f1 | 963 | |
e2500fed | 964 | struct tree_exp GTY(()) |
61131fa2 | 965 | { |
2bf105ab | 966 | struct tree_common common; |
61131fa2 | 967 | int complexity; |
46c5ad27 AJ |
968 | tree GTY ((special ("tree_exp"), |
969 | desc ("TREE_CODE ((tree) &%0)"))) | |
e2500fed | 970 | operands[1]; |
61131fa2 RS |
971 | }; |
972 | \f | |
8da1b058 | 973 | /* In a BLOCK node. */ |
12b195d9 | 974 | #define BLOCK_VARS(NODE) (BLOCK_CHECK (NODE)->block.vars) |
12b195d9 ML |
975 | #define BLOCK_SUBBLOCKS(NODE) (BLOCK_CHECK (NODE)->block.subblocks) |
976 | #define BLOCK_SUPERCONTEXT(NODE) (BLOCK_CHECK (NODE)->block.supercontext) | |
8da1b058 RS |
977 | /* Note: when changing this, make sure to find the places |
978 | that use chainon or nreverse. */ | |
a901fa64 | 979 | #define BLOCK_CHAIN(NODE) TREE_CHAIN (BLOCK_CHECK (NODE)) |
12b195d9 ML |
980 | #define BLOCK_ABSTRACT_ORIGIN(NODE) (BLOCK_CHECK (NODE)->block.abstract_origin) |
981 | #define BLOCK_ABSTRACT(NODE) (BLOCK_CHECK (NODE)->block.abstract_flag) | |
8da1b058 RS |
982 | |
983 | /* Nonzero means that this block is prepared to handle exceptions | |
984 | listed in the BLOCK_VARS slot. */ | |
c46080ab RK |
985 | #define BLOCK_HANDLER_BLOCK(NODE) \ |
986 | (BLOCK_CHECK (NODE)->block.handler_block_flag) | |
8da1b058 | 987 | |
18c038b9 MM |
988 | /* An index number for this block. These values are not guaranteed to |
989 | be unique across functions -- whether or not they are depends on | |
990 | the debugging output format in use. */ | |
991 | #define BLOCK_NUMBER(NODE) (BLOCK_CHECK (NODE)->block.block_num) | |
992 | ||
a20612aa RH |
993 | /* If block reordering splits a lexical block into discontiguous |
994 | address ranges, we'll make a copy of the original block. | |
995 | ||
996 | Note that this is logically distinct from BLOCK_ABSTRACT_ORIGIN. | |
997 | In that case, we have one source block that has been replicated | |
998 | (through inlining or unrolling) into many logical blocks, and that | |
999 | these logical blocks have different physical variables in them. | |
1000 | ||
1001 | In this case, we have one logical block split into several | |
1002 | non-contiguous address ranges. Most debug formats can't actually | |
1003 | represent this idea directly, so we fake it by creating multiple | |
1004 | logical blocks with the same variables in them. However, for those | |
1005 | that do support non-contiguous regions, these allow the original | |
1006 | logical block to be reconstructed, along with the set of address | |
1007 | ranges. | |
1008 | ||
1009 | One of the logical block fragments is arbitrarily chosen to be | |
1010 | the ORIGIN. The other fragments will point to the origin via | |
1011 | BLOCK_FRAGMENT_ORIGIN; the origin itself will have this pointer | |
41077ce4 | 1012 | be null. The list of fragments will be chained through |
a20612aa RH |
1013 | BLOCK_FRAGMENT_CHAIN from the origin. */ |
1014 | ||
c46080ab RK |
1015 | #define BLOCK_FRAGMENT_ORIGIN(NODE) (BLOCK_CHECK (NODE)->block.fragment_origin) |
1016 | #define BLOCK_FRAGMENT_CHAIN(NODE) (BLOCK_CHECK (NODE)->block.fragment_chain) | |
a20612aa | 1017 | |
e2500fed | 1018 | struct tree_block GTY(()) |
8da1b058 | 1019 | { |
2bf105ab | 1020 | struct tree_common common; |
61131fa2 RS |
1021 | |
1022 | unsigned handler_block_flag : 1; | |
1023 | unsigned abstract_flag : 1; | |
a84efb51 | 1024 | unsigned block_num : 30; |
61131fa2 | 1025 | |
2f78c311 ZW |
1026 | tree vars; |
1027 | tree subblocks; | |
1028 | tree supercontext; | |
1029 | tree abstract_origin; | |
1030 | tree fragment_origin; | |
1031 | tree fragment_chain; | |
8da1b058 RS |
1032 | }; |
1033 | \f | |
1034 | /* Define fields and accessors for nodes representing data types. */ | |
1035 | ||
1036 | /* See tree.def for documentation of the use of these fields. | |
eb34af89 RK |
1037 | Look at the documentation of the various ..._TYPE tree codes. |
1038 | ||
d1a6adeb | 1039 | Note that the type.values, type.minval, and type.maxval fields are |
eb34af89 RK |
1040 | overloaded and used for different macros in different kinds of types. |
1041 | Each macro must check to ensure the tree node is of the proper kind of | |
1042 | type. Note also that some of the front-ends also overload these fields, | |
1043 | so they must be checked as well. */ | |
8da1b058 | 1044 | |
12b195d9 ML |
1045 | #define TYPE_UID(NODE) (TYPE_CHECK (NODE)->type.uid) |
1046 | #define TYPE_SIZE(NODE) (TYPE_CHECK (NODE)->type.size) | |
1047 | #define TYPE_SIZE_UNIT(NODE) (TYPE_CHECK (NODE)->type.size_unit) | |
1048 | #define TYPE_MODE(NODE) (TYPE_CHECK (NODE)->type.mode) | |
eb34af89 RK |
1049 | #define TYPE_ORIG_SIZE_TYPE(NODE) (INTEGER_TYPE_CHECK (NODE)->type.values) |
1050 | #define TYPE_VALUES(NODE) (ENUMERAL_TYPE_CHECK (NODE)->type.values) | |
1051 | #define TYPE_DOMAIN(NODE) (SET_ARRAY_OR_VECTOR_CHECK (NODE)->type.values) | |
1052 | #define TYPE_FIELDS(NODE) (REC_OR_UNION_CHECK (NODE)->type.values) | |
1053 | #define TYPE_METHODS(NODE) (REC_OR_UNION_CHECK (NODE)->type.maxval) | |
1054 | #define TYPE_VFIELD(NODE) (REC_OR_UNION_CHECK (NODE)->type.minval) | |
1055 | #define TYPE_ARG_TYPES(NODE) (FUNC_OR_METHOD_CHECK (NODE)->type.values) | |
1056 | #define TYPE_METHOD_BASETYPE(NODE) (FUNC_OR_METHOD_CHECK (NODE)->type.maxval) | |
1057 | #define TYPE_OFFSET_BASETYPE(NODE) (OFFSET_TYPE_CHECK (NODE)->type.maxval) | |
12b195d9 ML |
1058 | #define TYPE_POINTER_TO(NODE) (TYPE_CHECK (NODE)->type.pointer_to) |
1059 | #define TYPE_REFERENCE_TO(NODE) (TYPE_CHECK (NODE)->type.reference_to) | |
22421b79 RK |
1060 | #define TYPE_NEXT_PTR_TO(NODE) (POINTER_TYPE_CHECK (NODE)->type.minval) |
1061 | #define TYPE_NEXT_REF_TO(NODE) (REFERENCE_TYPE_CHECK (NODE)->type.minval) | |
eb34af89 RK |
1062 | #define TYPE_MIN_VALUE(NODE) (NUMERICAL_TYPE_CHECK (NODE)->type.minval) |
1063 | #define TYPE_MAX_VALUE(NODE) (NUMERICAL_TYPE_CHECK (NODE)->type.maxval) | |
12b195d9 ML |
1064 | #define TYPE_PRECISION(NODE) (TYPE_CHECK (NODE)->type.precision) |
1065 | #define TYPE_SYMTAB_ADDRESS(NODE) (TYPE_CHECK (NODE)->type.symtab.address) | |
1066 | #define TYPE_SYMTAB_POINTER(NODE) (TYPE_CHECK (NODE)->type.symtab.pointer) | |
e2500fed | 1067 | #define TYPE_SYMTAB_DIE(NODE) (TYPE_CHECK (NODE)->type.symtab.die) |
12b195d9 ML |
1068 | #define TYPE_NAME(NODE) (TYPE_CHECK (NODE)->type.name) |
1069 | #define TYPE_NEXT_VARIANT(NODE) (TYPE_CHECK (NODE)->type.next_variant) | |
1070 | #define TYPE_MAIN_VARIANT(NODE) (TYPE_CHECK (NODE)->type.main_variant) | |
12b195d9 | 1071 | #define TYPE_CONTEXT(NODE) (TYPE_CHECK (NODE)->type.context) |
12b195d9 | 1072 | #define TYPE_LANG_SPECIFIC(NODE) (TYPE_CHECK (NODE)->type.lang_specific) |
8da1b058 | 1073 | |
4061f623 BS |
1074 | /* For a VECTOR_TYPE node, this describes a different type which is emitted |
1075 | in the debugging output. We use this to describe a vector as a | |
1076 | structure containing an array. */ | |
1077 | #define TYPE_DEBUG_REPRESENTATION_TYPE(NODE) (TYPE_CHECK (NODE)->type.values) | |
1078 | ||
8ff0c1af MM |
1079 | /* For aggregate types, information about this type, as a base type |
1080 | for itself. Used in a language-dependent way for types that are | |
1081 | neither a RECORD_TYPE, QUAL_UNION_TYPE, nor a UNION_TYPE. */ | |
1082 | #define TYPE_BINFO(NODE) (TYPE_CHECK (NODE)->type.binfo) | |
1083 | ||
41472af8 MM |
1084 | /* The (language-specific) typed-based alias set for this type. |
1085 | Objects whose TYPE_ALIAS_SETs are different cannot alias each | |
1086 | other. If the TYPE_ALIAS_SET is -1, no alias set has yet been | |
1087 | assigned to this type. If the TYPE_ALIAS_SET is 0, objects of this | |
1088 | type can alias objects of any type. */ | |
1089 | #define TYPE_ALIAS_SET(NODE) (TYPE_CHECK (NODE)->type.alias_set) | |
1090 | ||
1091 | /* Nonzero iff the typed-based alias set for this type has been | |
1092 | calculated. */ | |
c46080ab | 1093 | #define TYPE_ALIAS_SET_KNOWN_P(NODE) (TYPE_CHECK (NODE)->type.alias_set != -1) |
41472af8 | 1094 | |
bad1b4ba RK |
1095 | /* A TREE_LIST of IDENTIFIER nodes of the attributes that apply |
1096 | to this type. */ | |
12b195d9 | 1097 | #define TYPE_ATTRIBUTES(NODE) (TYPE_CHECK (NODE)->type.attributes) |
bad1b4ba | 1098 | |
869637e6 RS |
1099 | /* The alignment necessary for objects of this type. |
1100 | The value is an int, measured in bits. */ | |
12b195d9 | 1101 | #define TYPE_ALIGN(NODE) (TYPE_CHECK (NODE)->type.align) |
869637e6 | 1102 | |
11cf4d18 JJ |
1103 | /* 1 if the alignment for this type was requested by "aligned" attribute, |
1104 | 0 if it is the default for this type. */ | |
1105 | #define TYPE_USER_ALIGN(NODE) (TYPE_CHECK (NODE)->type.user_align) | |
1106 | ||
834c6dff | 1107 | /* The alignment for NODE, in bytes. */ |
c46080ab | 1108 | #define TYPE_ALIGN_UNIT(NODE) (TYPE_ALIGN (NODE) / BITS_PER_UNIT) |
834c6dff | 1109 | |
2b5f2501 RH |
1110 | /* If your language allows you to declare types, and you want debug info |
1111 | for them, then you need to generate corresponding TYPE_DECL nodes. | |
1112 | These "stub" TYPE_DECL nodes have no name, and simply point at the | |
1113 | type node. You then set the TYPE_STUB_DECL field of the type node | |
1114 | to point back at the TYPE_DECL node. This allows the debug routines | |
1115 | to know that the two nodes represent the same type, so that we only | |
2ba84f36 | 1116 | get one debug info record for them. */ |
c46080ab | 1117 | #define TYPE_STUB_DECL(NODE) TREE_CHAIN (NODE) |
8da1b058 | 1118 | |
3635a54b RK |
1119 | /* In a RECORD_TYPE, UNION_TYPE or QUAL_UNION_TYPE, it means the type |
1120 | has BLKmode only because it lacks the alignment requirement for | |
1121 | its size. */ | |
12b195d9 | 1122 | #define TYPE_NO_FORCE_BLK(NODE) (TYPE_CHECK (NODE)->type.no_force_blk_flag) |
8da1b058 | 1123 | |
e36308b0 MM |
1124 | /* In an INTEGER_TYPE, it means the type represents a size. We use |
1125 | this both for validity checking and to permit optimizations that | |
1126 | are unsafe for other types. Note that the C `size_t' type should | |
1127 | *not* have this flag set. The `size_t' type is simply a typedef | |
1128 | for an ordinary integer type that happens to be the type of an | |
1129 | expression returned by `sizeof'; `size_t' has no special | |
1130 | properties. Expressions whose type have TYPE_IS_SIZETYPE set are | |
1131 | always actual sizes. */ | |
7393c642 RK |
1132 | #define TYPE_IS_SIZETYPE(NODE) \ |
1133 | (INTEGER_TYPE_CHECK (NODE)->type.no_force_blk_flag) | |
1134 | ||
1135 | /* In a FUNCTION_TYPE, indicates that the function returns with the stack | |
1136 | pointer depressed. */ | |
1137 | #define TYPE_RETURNS_STACK_DEPRESSED(NODE) \ | |
199acebb | 1138 | (FUNCTION_TYPE_CHECK (NODE)->type.no_force_blk_flag) |
fed3cef0 | 1139 | |
8da1b058 | 1140 | /* Nonzero in a type considered volatile as a whole. */ |
50e9f73a | 1141 | #define TYPE_VOLATILE(NODE) (TYPE_CHECK (NODE)->common.volatile_flag) |
8da1b058 RS |
1142 | |
1143 | /* Means this type is const-qualified. */ | |
50e9f73a | 1144 | #define TYPE_READONLY(NODE) (TYPE_CHECK (NODE)->common.readonly_flag) |
8da1b058 | 1145 | |
3932261a MM |
1146 | /* If nonzero, this type is `restrict'-qualified, in the C sense of |
1147 | the term. */ | |
1148 | #define TYPE_RESTRICT(NODE) (TYPE_CHECK (NODE)->type.restrict_flag) | |
1149 | ||
1150 | /* There is a TYPE_QUAL value for each type qualifier. They can be | |
1151 | combined by bitwise-or to form the complete set of qualifiers for a | |
1152 | type. */ | |
1153 | ||
1154 | #define TYPE_UNQUALIFIED 0x0 | |
1155 | #define TYPE_QUAL_CONST 0x1 | |
1156 | #define TYPE_QUAL_VOLATILE 0x2 | |
1157 | #define TYPE_QUAL_RESTRICT 0x4 | |
1158 | ||
1159 | /* The set of type qualifiers for this type. */ | |
a6d7adfd GM |
1160 | #define TYPE_QUALS(NODE) \ |
1161 | ((TYPE_READONLY (NODE) * TYPE_QUAL_CONST) \ | |
1162 | | (TYPE_VOLATILE (NODE) * TYPE_QUAL_VOLATILE) \ | |
66804d9e | 1163 | | (TYPE_RESTRICT (NODE) * TYPE_QUAL_RESTRICT)) |
3932261a | 1164 | |
9f86614b | 1165 | /* These flags are available for each language front end to use internally. */ |
12b195d9 ML |
1166 | #define TYPE_LANG_FLAG_0(NODE) (TYPE_CHECK (NODE)->type.lang_flag_0) |
1167 | #define TYPE_LANG_FLAG_1(NODE) (TYPE_CHECK (NODE)->type.lang_flag_1) | |
1168 | #define TYPE_LANG_FLAG_2(NODE) (TYPE_CHECK (NODE)->type.lang_flag_2) | |
1169 | #define TYPE_LANG_FLAG_3(NODE) (TYPE_CHECK (NODE)->type.lang_flag_3) | |
1170 | #define TYPE_LANG_FLAG_4(NODE) (TYPE_CHECK (NODE)->type.lang_flag_4) | |
1171 | #define TYPE_LANG_FLAG_5(NODE) (TYPE_CHECK (NODE)->type.lang_flag_5) | |
1172 | #define TYPE_LANG_FLAG_6(NODE) (TYPE_CHECK (NODE)->type.lang_flag_6) | |
8da1b058 | 1173 | |
74a3fd26 PB |
1174 | /* If set in an ARRAY_TYPE, indicates a string type (for languages |
1175 | that distinguish string from array of char). | |
2ba84f36 | 1176 | If set in a SET_TYPE, indicates a bitstring type. */ |
12b195d9 | 1177 | #define TYPE_STRING_FLAG(NODE) (TYPE_CHECK (NODE)->type.string_flag) |
74a3fd26 | 1178 | |
4fe9b91c | 1179 | /* If non-NULL, this is an upper bound of the size (in bytes) of an |
c46080ab RK |
1180 | object of the given ARRAY_TYPE. This allows temporaries to be |
1181 | allocated. */ | |
1182 | #define TYPE_ARRAY_MAX_SIZE(ARRAY_TYPE) \ | |
a6002f8d | 1183 | (ARRAY_TYPE_CHECK (ARRAY_TYPE)->type.maxval) |
2fb2b21c | 1184 | |
0b4565c9 | 1185 | /* For a VECTOR_TYPE, this is the number of sub-parts of the vector. */ |
c46080ab RK |
1186 | #define TYPE_VECTOR_SUBPARTS(VECTOR_TYPE) \ |
1187 | GET_MODE_NUNITS (VECTOR_TYPE_CHECK (VECTOR_TYPE)->type.mode) | |
0b4565c9 BS |
1188 | |
1189 | /* Indicates that objects of this type must be initialized by calling a | |
4ac3d994 | 1190 | function when they are created. */ |
2bf105ab RK |
1191 | #define TYPE_NEEDS_CONSTRUCTING(NODE) \ |
1192 | (TYPE_CHECK (NODE)->type.needs_constructing_flag) | |
4ac3d994 | 1193 | |
adb23061 RK |
1194 | /* Indicates that objects of this type (a UNION_TYPE), should be passed |
1195 | the same way that the first union alternative would be passed. */ | |
2bf105ab RK |
1196 | #define TYPE_TRANSPARENT_UNION(NODE) \ |
1197 | (UNION_TYPE_CHECK (NODE)->type.transparent_union_flag) | |
1198 | ||
1199 | /* For an ARRAY_TYPE, indicates that it is not permitted to | |
1200 | take the address of a component of the type. */ | |
1201 | #define TYPE_NONALIASED_COMPONENT(NODE) \ | |
1202 | (ARRAY_TYPE_CHECK (NODE)->type.transparent_union_flag) | |
adb23061 | 1203 | |
956d6950 | 1204 | /* Indicated that objects of this type should be laid out in as |
9e357cd8 | 1205 | compact a way as possible. */ |
12b195d9 | 1206 | #define TYPE_PACKED(NODE) (TYPE_CHECK (NODE)->type.packed_flag) |
9e357cd8 | 1207 | |
e2500fed GK |
1208 | struct die_struct; |
1209 | ||
1210 | struct tree_type GTY(()) | |
8da1b058 | 1211 | { |
2bf105ab | 1212 | struct tree_common common; |
2f78c311 ZW |
1213 | tree values; |
1214 | tree size; | |
1215 | tree size_unit; | |
1216 | tree attributes; | |
b3ddc3ab | 1217 | unsigned int uid; |
8da1b058 | 1218 | |
b3ddc3ab | 1219 | unsigned int precision : 9; |
c149cc37 | 1220 | ENUM_BITFIELD(machine_mode) mode : 7; |
bad1b4ba | 1221 | |
74a3fd26 | 1222 | unsigned string_flag : 1; |
8da1b058 | 1223 | unsigned no_force_blk_flag : 1; |
4ac3d994 | 1224 | unsigned needs_constructing_flag : 1; |
adb23061 | 1225 | unsigned transparent_union_flag : 1; |
9e357cd8 | 1226 | unsigned packed_flag : 1; |
3932261a | 1227 | unsigned restrict_flag : 1; |
66804d9e | 1228 | unsigned spare : 2; |
3932261a | 1229 | |
8da1b058 RS |
1230 | unsigned lang_flag_0 : 1; |
1231 | unsigned lang_flag_1 : 1; | |
1232 | unsigned lang_flag_2 : 1; | |
1233 | unsigned lang_flag_3 : 1; | |
1234 | unsigned lang_flag_4 : 1; | |
1235 | unsigned lang_flag_5 : 1; | |
1236 | unsigned lang_flag_6 : 1; | |
11cf4d18 | 1237 | unsigned user_align : 1; |
8da1b058 | 1238 | |
69b78d8d | 1239 | unsigned int align; |
2f78c311 ZW |
1240 | tree pointer_to; |
1241 | tree reference_to; | |
e2500fed | 1242 | union tree_type_symtab { |
46c5ad27 AJ |
1243 | int GTY ((tag ("0"))) address; |
1244 | char * GTY ((tag ("1"))) pointer; | |
17211ab5 | 1245 | struct die_struct * GTY ((tag ("2"))) die; |
46c5ad27 | 1246 | } GTY ((desc ("debug_hooks == &sdb_debug_hooks ? 1 : debug_hooks == &dwarf2_debug_hooks ? 2 : 0"), |
e2500fed | 1247 | descbits ("2"))) symtab; |
2f78c311 ZW |
1248 | tree name; |
1249 | tree minval; | |
1250 | tree maxval; | |
1251 | tree next_variant; | |
1252 | tree main_variant; | |
1253 | tree binfo; | |
2f78c311 | 1254 | tree context; |
3bdf5ad1 | 1255 | HOST_WIDE_INT alias_set; |
8da1b058 RS |
1256 | /* Points to a structure whose details depend on the language in use. */ |
1257 | struct lang_type *lang_specific; | |
1258 | }; | |
1259 | \f | |
1260 | /* Define accessor macros for information about type inheritance | |
1261 | and basetypes. | |
1262 | ||
1263 | A "basetype" means a particular usage of a data type for inheritance | |
1264 | in another type. Each such basetype usage has its own "binfo" | |
1265 | object to describe it. The binfo object is a TREE_VEC node. | |
1266 | ||
1267 | Inheritance is represented by the binfo nodes allocated for a | |
1268 | given type. For example, given types C and D, such that D is | |
1269 | inherited by C, 3 binfo nodes will be allocated: one for describing | |
1270 | the binfo properties of C, similarly one for D, and one for | |
1271 | describing the binfo properties of D as a base type for C. | |
1272 | Thus, given a pointer to class C, one can get a pointer to the binfo | |
1273 | of D acting as a basetype for C by looking at C's binfo's basetypes. */ | |
1274 | ||
1275 | /* The actual data type node being inherited in this basetype. */ | |
1276 | #define BINFO_TYPE(NODE) TREE_TYPE (NODE) | |
1277 | ||
1278 | /* The offset where this basetype appears in its containing type. | |
1279 | BINFO_OFFSET slot holds the offset (in bytes) | |
1280 | from the base of the complete object to the base of the part of the | |
1281 | object that is allocated on behalf of this `type'. | |
1282 | This is always 0 except when there is multiple inheritance. */ | |
41077ce4 | 1283 | |
8da1b058 RS |
1284 | #define BINFO_OFFSET(NODE) TREE_VEC_ELT ((NODE), 1) |
1285 | #define TYPE_BINFO_OFFSET(NODE) BINFO_OFFSET (TYPE_BINFO (NODE)) | |
7d02bbef | 1286 | #define BINFO_OFFSET_ZEROP(NODE) (integer_zerop (BINFO_OFFSET (NODE))) |
8da1b058 RS |
1287 | |
1288 | /* The virtual function table belonging to this basetype. Virtual | |
1289 | function tables provide a mechanism for run-time method dispatching. | |
1290 | The entries of a virtual function table are language-dependent. */ | |
1291 | ||
1292 | #define BINFO_VTABLE(NODE) TREE_VEC_ELT ((NODE), 2) | |
1293 | #define TYPE_BINFO_VTABLE(NODE) BINFO_VTABLE (TYPE_BINFO (NODE)) | |
1294 | ||
1295 | /* The virtual functions in the virtual function table. This is | |
1296 | a TREE_LIST that is used as an initial approximation for building | |
1297 | a virtual function table for this basetype. */ | |
1298 | #define BINFO_VIRTUALS(NODE) TREE_VEC_ELT ((NODE), 3) | |
1299 | #define TYPE_BINFO_VIRTUALS(NODE) BINFO_VIRTUALS (TYPE_BINFO (NODE)) | |
1300 | ||
0430641b MM |
1301 | /* A vector of binfos for the direct basetypes inherited by this |
1302 | basetype. | |
8da1b058 | 1303 | |
0430641b MM |
1304 | If this basetype describes type D as inherited in C, and if the |
1305 | basetypes of D are E and F, then this vector contains binfos for | |
1306 | inheritance of E and F by C. | |
8da1b058 RS |
1307 | |
1308 | ??? This could probably be done by just allocating the | |
1309 | base types at the end of this TREE_VEC (instead of using | |
1310 | another TREE_VEC). This would simplify the calculation | |
1311 | of how many basetypes a given type had. */ | |
1312 | #define BINFO_BASETYPES(NODE) TREE_VEC_ELT ((NODE), 4) | |
1313 | #define TYPE_BINFO_BASETYPES(NODE) TREE_VEC_ELT (TYPE_BINFO (NODE), 4) | |
1314 | ||
5e1677bc MM |
1315 | /* The number of basetypes for NODE. */ |
1316 | #define BINFO_N_BASETYPES(NODE) \ | |
1317 | (BINFO_BASETYPES (NODE) ? TREE_VEC_LENGTH (BINFO_BASETYPES (NODE)) : 0) | |
1318 | ||
7d02bbef JM |
1319 | /* Accessor macro to get to the Nth basetype of this basetype. */ |
1320 | #define BINFO_BASETYPE(NODE,N) TREE_VEC_ELT (BINFO_BASETYPES (NODE), (N)) | |
c46080ab RK |
1321 | #define TYPE_BINFO_BASETYPE(NODE,N) \ |
1322 | BINFO_TYPE (TREE_VEC_ELT (BINFO_BASETYPES (TYPE_BINFO (NODE)), (N))) | |
7d02bbef | 1323 | |
39ac3e4f MM |
1324 | /* For a BINFO record describing a virtual base class, i.e., one where |
1325 | TREE_VIA_VIRTUAL is set, this field assists in locating the virtual | |
1824b90d NS |
1326 | base. The actual contents are language-dependent. In the C++ |
1327 | front-end this field is an INTEGER_CST giving an offset into the | |
1328 | vtable where the offset to the virtual base can be found. */ | |
c46080ab | 1329 | #define BINFO_VPTR_FIELD(NODE) TREE_VEC_ELT (NODE, 5) |
2cc3ac7a | 1330 | |
dbbf88d1 NS |
1331 | /* Indicates the accesses this binfo has to its bases. The values are |
1332 | access_public_node, access_protected_node or access_private_node. | |
1333 | If this array is not present, public access is implied. */ | |
1334 | #define BINFO_BASEACCESSES(NODE) TREE_VEC_ELT ((NODE), 6) | |
1335 | #define BINFO_BASEACCESS(NODE,N) TREE_VEC_ELT (BINFO_BASEACCESSES(NODE), (N)) | |
1336 | ||
1337 | /* Number of language independent elements in a binfo. Languages may | |
1338 | add additional trailing elements. */ | |
1339 | ||
1340 | #define BINFO_ELTS 7 | |
8da1b058 RS |
1341 | |
1342 | /* Slot used to build a chain that represents a use of inheritance. | |
1343 | For example, if X is derived from Y, and Y is derived from Z, | |
1344 | then this field can be used to link the binfo node for X to | |
1345 | the binfo node for X's Y to represent the use of inheritance | |
1346 | from X to Y. Similarly, this slot of the binfo node for X's Y | |
1347 | can point to the Z from which Y is inherited (in X's inheritance | |
1348 | hierarchy). In this fashion, one can represent and traverse specific | |
1349 | uses of inheritance using the binfo nodes themselves (instead of | |
1350 | consing new space pointing to binfo nodes). | |
1351 | It is up to the language-dependent front-ends to maintain | |
1352 | this information as necessary. */ | |
1353 | #define BINFO_INHERITANCE_CHAIN(NODE) TREE_VEC_ELT ((NODE), 0) | |
1354 | \f | |
1355 | /* Define fields and accessors for nodes representing declared names. */ | |
1356 | ||
7766fe8e JM |
1357 | /* Nonzero if DECL represents a decl. */ |
1358 | #define DECL_P(DECL) (TREE_CODE_CLASS (TREE_CODE (DECL)) == 'd') | |
c46080ab | 1359 | |
8da1b058 RS |
1360 | /* This is the name of the object as written by the user. |
1361 | It is an IDENTIFIER_NODE. */ | |
12b195d9 | 1362 | #define DECL_NAME(NODE) (DECL_CHECK (NODE)->decl.name) |
c46080ab | 1363 | |
92643fea MM |
1364 | /* The name of the object as the assembler will see it (but before any |
1365 | translations made by ASM_OUTPUT_LABELREF). Often this is the same | |
1366 | as DECL_NAME. It is an IDENTIFIER_NODE. */ | |
599bba86 | 1367 | #define DECL_ASSEMBLER_NAME(NODE) decl_assembler_name (NODE) |
c46080ab | 1368 | |
0e9e1e0a | 1369 | /* Returns nonzero if the DECL_ASSEMBLER_NAME for NODE has been set. If zero, |
c46080ab RK |
1370 | the NODE might still have a DECL_ASSEMBLER_NAME -- it just hasn't been set |
1371 | yet. */ | |
92643fea MM |
1372 | #define DECL_ASSEMBLER_NAME_SET_P(NODE) \ |
1373 | (DECL_CHECK (NODE)->decl.assembler_name != NULL_TREE) | |
c46080ab | 1374 | |
92643fea MM |
1375 | /* Set the DECL_ASSEMBLER_NAME for NODE to NAME. */ |
1376 | #define SET_DECL_ASSEMBLER_NAME(NODE, NAME) \ | |
1377 | (DECL_CHECK (NODE)->decl.assembler_name = (NAME)) | |
c46080ab RK |
1378 | |
1379 | /* Copy the DECL_ASSEMBLER_NAME from DECL1 to DECL2. Note that if DECL1's | |
1380 | DECL_ASSEMBLER_NAME has not yet been set, using this macro will not cause | |
1381 | the DECL_ASSEMBLER_NAME of either DECL to be set. In other words, the | |
1382 | semantics of using this macro, are different than saying: | |
41077ce4 | 1383 | |
92643fea MM |
1384 | SET_DECL_ASSEMBLER_NAME(DECL2, DECL_ASSEMBLER_NAME (DECL1)) |
1385 | ||
1386 | which will try to set the DECL_ASSEMBLER_NAME for DECL1. */ | |
c46080ab | 1387 | |
92643fea MM |
1388 | #define COPY_DECL_ASSEMBLER_NAME(DECL1, DECL2) \ |
1389 | (DECL_ASSEMBLER_NAME_SET_P (DECL1) \ | |
41077ce4 KH |
1390 | ? (void) SET_DECL_ASSEMBLER_NAME (DECL2, \ |
1391 | DECL_ASSEMBLER_NAME (DECL1)) \ | |
92643fea MM |
1392 | : (void) 0) |
1393 | ||
868e8789 DE |
1394 | /* Records the section name in a section attribute. Used to pass |
1395 | the name from decl_attributes to make_function_rtl and make_decl_rtl. */ | |
12b195d9 | 1396 | #define DECL_SECTION_NAME(NODE) (DECL_CHECK (NODE)->decl.section_name) |
c46080ab | 1397 | |
d1bd0ded GK |
1398 | /* For FIELD_DECLs, this is the RECORD_TYPE, UNION_TYPE, or |
1399 | QUAL_UNION_TYPE node that the field is a member of. For VAR_DECL, | |
1400 | PARM_DECL, FUNCTION_DECL, LABEL_DECL, and CONST_DECL nodes, this | |
1401 | points to either the FUNCTION_DECL for the containing function, | |
1402 | the RECORD_TYPE or UNION_TYPE for the containing type, or | |
1403 | NULL_TREE or a TRANSLATION_UNIT_DECL if the given decl has "file | |
1404 | scope". */ | |
12b195d9 | 1405 | #define DECL_CONTEXT(NODE) (DECL_CHECK (NODE)->decl.context) |
770ae6cc | 1406 | #define DECL_FIELD_CONTEXT(NODE) (FIELD_DECL_CHECK (NODE)->decl.context) |
91d231cb JM |
1407 | /* In a DECL this is the field where attributes are stored. */ |
1408 | #define DECL_ATTRIBUTES(NODE) (DECL_CHECK (NODE)->decl.attributes) | |
770ae6cc RK |
1409 | /* In a FIELD_DECL, this is the field position, counting in bytes, of the |
1410 | byte containing the bit closest to the beginning of the structure. */ | |
1411 | #define DECL_FIELD_OFFSET(NODE) (FIELD_DECL_CHECK (NODE)->decl.arguments) | |
1412 | /* In a FIELD_DECL, this is the offset, in bits, of the first bit of the | |
1413 | field from DECL_FIELD_OFFSET. */ | |
1414 | #define DECL_FIELD_BIT_OFFSET(NODE) (FIELD_DECL_CHECK (NODE)->decl.u2.t) | |
8da1b058 | 1415 | /* In a FIELD_DECL, this indicates whether the field was a bit-field and |
8e148bef RS |
1416 | if so, the type that was originally specified for it. |
1417 | TREE_TYPE may have been modified (in finish_struct). */ | |
770ae6cc | 1418 | #define DECL_BIT_FIELD_TYPE(NODE) (FIELD_DECL_CHECK (NODE)->decl.result) |
c46080ab RK |
1419 | /* In FUNCTION_DECL, a chain of ..._DECL nodes. |
1420 | VAR_DECL and PARM_DECL reserve the arguments slot for language-specific | |
1421 | uses. */ | |
12b195d9 | 1422 | #define DECL_ARGUMENTS(NODE) (DECL_CHECK (NODE)->decl.arguments) |
17aec3eb RK |
1423 | /* This field is used to reference anything in decl.result and is meant only |
1424 | for use by the garbage collector. */ | |
1425 | #define DECL_RESULT_FLD(NODE) (DECL_CHECK (NODE)->decl.result) | |
8da1b058 | 1426 | /* In FUNCTION_DECL, holds the decl for the return value. */ |
770ae6cc | 1427 | #define DECL_RESULT(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.result) |
9506a28d | 1428 | /* For a TYPE_DECL, holds the "original" type. (TREE_TYPE has the copy.) */ |
770ae6cc | 1429 | #define DECL_ORIGINAL_TYPE(NODE) (TYPE_DECL_CHECK (NODE)->decl.result) |
8da1b058 | 1430 | /* In PARM_DECL, holds the type as written (perhaps a function or array). */ |
770ae6cc | 1431 | #define DECL_ARG_TYPE_AS_WRITTEN(NODE) (PARM_DECL_CHECK (NODE)->decl.result) |
8da1b058 | 1432 | /* For a FUNCTION_DECL, holds the tree of BINDINGs. |
d1bd0ded | 1433 | For a TRANSLATION_UNIT_DECL, holds the namespace's BLOCK. |
8da1b058 RS |
1434 | For a VAR_DECL, holds the initial value. |
1435 | For a PARM_DECL, not used--default | |
1436 | values for parameters are encoded in the type of the function, | |
1437 | not in the PARM_DECL slot. */ | |
12b195d9 | 1438 | #define DECL_INITIAL(NODE) (DECL_CHECK (NODE)->decl.initial) |
8da1b058 RS |
1439 | /* For a PARM_DECL, records the data type used to pass the argument, |
1440 | which may be different from the type seen in the program. */ | |
770ae6cc | 1441 | #define DECL_ARG_TYPE(NODE) (PARM_DECL_CHECK (NODE)->decl.initial) |
3635a54b RK |
1442 | /* For a FIELD_DECL in a QUAL_UNION_TYPE, records the expression, which |
1443 | if nonzero, indicates that the field occupies the type. */ | |
770ae6cc | 1444 | #define DECL_QUALIFIER(NODE) (FIELD_DECL_CHECK (NODE)->decl.initial) |
f31686a3 RH |
1445 | /* These two fields describe where in the source code the declaration |
1446 | was. If the declaration appears in several places (as for a C | |
1447 | function that is declared first and then defined later), this | |
1448 | information should refer to the definition. */ | |
1449 | #define DECL_SOURCE_LOCATION(NODE) (DECL_CHECK (NODE)->decl.locus) | |
1450 | #define DECL_SOURCE_FILE(NODE) (DECL_SOURCE_LOCATION (NODE).file) | |
1451 | #define DECL_SOURCE_LINE(NODE) (DECL_SOURCE_LOCATION (NODE).line) | |
06ceef4e | 1452 | /* Holds the size of the datum, in bits, as a tree expression. |
8da1b058 | 1453 | Need not be constant. */ |
12b195d9 | 1454 | #define DECL_SIZE(NODE) (DECL_CHECK (NODE)->decl.size) |
06ceef4e RK |
1455 | /* Likewise for the size in bytes. */ |
1456 | #define DECL_SIZE_UNIT(NODE) (DECL_CHECK (NODE)->decl.size_unit) | |
971774bb | 1457 | /* Holds the alignment required for the datum, in bits. */ |
770ae6cc | 1458 | #define DECL_ALIGN(NODE) (DECL_CHECK (NODE)->decl.u1.a.align) |
971774bb MM |
1459 | /* The alignment of NODE, in bytes. */ |
1460 | #define DECL_ALIGN_UNIT(NODE) (DECL_ALIGN (NODE) / BITS_PER_UNIT) | |
2f5c7f45 GK |
1461 | /* For FIELD_DECLs, off_align holds the number of low-order bits of |
1462 | DECL_FIELD_OFFSET which are known to be always zero. | |
1463 | DECL_OFFSET_ALIGN thus returns the alignment that DECL_FIELD_OFFSET | |
1464 | has. */ | |
1465 | #define DECL_OFFSET_ALIGN(NODE) \ | |
1466 | (((unsigned HOST_WIDE_INT)1) << FIELD_DECL_CHECK (NODE)->decl.u1.a.off_align) | |
1467 | /* Specify that DECL_ALIGN(NODE) is a multiple of X. */ | |
1468 | #define SET_DECL_OFFSET_ALIGN(NODE, X) \ | |
1469 | (FIELD_DECL_CHECK (NODE)->decl.u1.a.off_align = exact_log2 ((X) & -(X))) | |
11cf4d18 JJ |
1470 | /* 1 if the alignment for this type was requested by "aligned" attribute, |
1471 | 0 if it is the default for this type. */ | |
1472 | #define DECL_USER_ALIGN(NODE) (DECL_CHECK (NODE)->decl.user_align) | |
17c73321 RK |
1473 | /* Holds the machine mode corresponding to the declaration of a variable or |
1474 | field. Always equal to TYPE_MODE (TREE_TYPE (decl)) except for a | |
1475 | FIELD_DECL. */ | |
12b195d9 | 1476 | #define DECL_MODE(NODE) (DECL_CHECK (NODE)->decl.mode) |
616f6d84 | 1477 | /* Holds the RTL expression for the value of a variable or function. |
19e7881c MM |
1478 | This value can be evaluated lazily for functions, variables with |
1479 | static storage duration, and labels. */ | |
1480 | #define DECL_RTL(NODE) \ | |
1481 | (DECL_CHECK (NODE)->decl.rtl \ | |
1482 | ? (NODE)->decl.rtl \ | |
1483 | : (make_decl_rtl (NODE, NULL), (NODE)->decl.rtl)) | |
1484 | /* Set the DECL_RTL for NODE to RTL. */ | |
a560d4d4 | 1485 | #define SET_DECL_RTL(NODE, RTL) set_decl_rtl (NODE, RTL) |
0e9e1e0a | 1486 | /* Returns nonzero if the DECL_RTL for NODE has already been set. */ |
c46080ab | 1487 | #define DECL_RTL_SET_P(NODE) (DECL_CHECK (NODE)->decl.rtl != NULL) |
19e7881c MM |
1488 | /* Copy the RTL from NODE1 to NODE2. If the RTL was not set for |
1489 | NODE1, it will not be set for NODE2; this is a lazy copy. */ | |
1490 | #define COPY_DECL_RTL(NODE1, NODE2) \ | |
1491 | (DECL_CHECK (NODE2)->decl.rtl = DECL_CHECK (NODE1)->decl.rtl) | |
1492 | /* The DECL_RTL for NODE, if it is set, or NULL, if it is not set. */ | |
c46080ab RK |
1493 | #define DECL_RTL_IF_SET(NODE) (DECL_RTL_SET_P (NODE) ? DECL_RTL (NODE) : NULL) |
1494 | ||
8da1b058 RS |
1495 | /* For PARM_DECL, holds an RTL for the stack slot or register |
1496 | where the data was actually passed. */ | |
770ae6cc | 1497 | #define DECL_INCOMING_RTL(NODE) (PARM_DECL_CHECK (NODE)->decl.u2.r) |
c46080ab | 1498 | |
1da326c3 SB |
1499 | /* For FUNCTION_DECL, this holds a pointer to a structure ("struct function") |
1500 | that describes the status of this function. */ | |
1501 | #define DECL_STRUCT_FUNCTION(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.u2.f) | |
c46080ab | 1502 | |
66321686 RS |
1503 | /* For FUNCTION_DECL, if it is built-in, |
1504 | this identifies which built-in operation it is. */ | |
770ae6cc | 1505 | #define DECL_FUNCTION_CODE(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.u1.f) |
8da1b058 RS |
1506 | |
1507 | /* The DECL_VINDEX is used for FUNCTION_DECLS in two different ways. | |
1508 | Before the struct containing the FUNCTION_DECL is laid out, | |
1509 | DECL_VINDEX may point to a FUNCTION_DECL in a base class which | |
1510 | is the FUNCTION_DECL which this FUNCTION_DECL will replace as a virtual | |
1511 | function. When the class is laid out, this pointer is changed | |
1512 | to an INTEGER_CST node which is suitable for use as an index | |
1513 | into the virtual function table. */ | |
12b195d9 | 1514 | #define DECL_VINDEX(NODE) (DECL_CHECK (NODE)->decl.vindex) |
c46080ab | 1515 | |
8da1b058 RS |
1516 | /* For FIELD_DECLS, DECL_FCONTEXT is the *first* baseclass in |
1517 | which this FIELD_DECL is defined. This information is needed when | |
1518 | writing debugging information about vfield and vbase decls for C++. */ | |
770ae6cc | 1519 | #define DECL_FCONTEXT(NODE) (FIELD_DECL_CHECK (NODE)->decl.vindex) |
8da1b058 | 1520 | |
0e77444b | 1521 | /* Every ..._DECL node gets a unique number. */ |
12b195d9 | 1522 | #define DECL_UID(NODE) (DECL_CHECK (NODE)->decl.uid) |
0e77444b | 1523 | |
c5caa350 CH |
1524 | /* For any sort of a ..._DECL node, this points to the original (abstract) |
1525 | decl node which this decl is an instance of, or else it is NULL indicating | |
4a7d05dc DE |
1526 | that this decl is not an instance of some other decl. For example, |
1527 | in a nested declaration of an inline function, this points back to the | |
1528 | definition. */ | |
12b195d9 | 1529 | #define DECL_ABSTRACT_ORIGIN(NODE) (DECL_CHECK (NODE)->decl.abstract_origin) |
c5caa350 | 1530 | |
02e24c7a MM |
1531 | /* Like DECL_ABSTRACT_ORIGIN, but returns NODE if there's no abstract |
1532 | origin. This is useful when setting the DECL_ABSTRACT_ORIGIN. */ | |
1533 | #define DECL_ORIGIN(NODE) \ | |
b9daac31 | 1534 | (DECL_ABSTRACT_ORIGIN (NODE) ? DECL_ABSTRACT_ORIGIN (NODE) : (NODE)) |
02e24c7a | 1535 | |
f93dacbd RK |
1536 | /* Nonzero for any sort of ..._DECL node means this decl node represents an |
1537 | inline instance of some original (abstract) decl from an inline function; | |
1538 | suppress any warnings about shadowing some other variable. FUNCTION_DECL | |
2ba84f36 | 1539 | nodes can also have their abstract origin set to themselves. */ |
b9daac31 | 1540 | #define DECL_FROM_INLINE(NODE) (DECL_ABSTRACT_ORIGIN (NODE) != NULL_TREE \ |
3d62d651 | 1541 | && DECL_ABSTRACT_ORIGIN (NODE) != (NODE)) |
8da1b058 RS |
1542 | |
1543 | /* Nonzero if a _DECL means that the name of this decl should be ignored | |
1544 | for symbolic debug purposes. */ | |
12b195d9 | 1545 | #define DECL_IGNORED_P(NODE) (DECL_CHECK (NODE)->decl.ignored_flag) |
8da1b058 | 1546 | |
c5caa350 CH |
1547 | /* Nonzero for a given ..._DECL node means that this node represents an |
1548 | "abstract instance" of the given declaration (e.g. in the original | |
1549 | declaration of an inline function). When generating symbolic debugging | |
9faa82d8 | 1550 | information, we mustn't try to generate any address information for nodes |
c5caa350 CH |
1551 | marked as "abstract instances" because we don't actually generate |
1552 | any code or allocate any data space for such instances. */ | |
12b195d9 | 1553 | #define DECL_ABSTRACT(NODE) (DECL_CHECK (NODE)->decl.abstract_flag) |
c5caa350 | 1554 | |
3110a56e RS |
1555 | /* Nonzero if a _DECL means that no warnings should be generated just |
1556 | because this decl is unused. */ | |
c46080ab RK |
1557 | #define DECL_IN_SYSTEM_HEADER(NODE) \ |
1558 | (DECL_CHECK (NODE)->decl.in_system_header_flag) | |
3110a56e | 1559 | |
2c0d84d6 MS |
1560 | /* Nonzero for a given ..._DECL node means that this node should be |
1561 | put in .common, if possible. If a DECL_INITIAL is given, and it | |
1562 | is not error_mark_node, then the decl cannot be put in .common. */ | |
12b195d9 | 1563 | #define DECL_COMMON(NODE) (DECL_CHECK (NODE)->decl.common_flag) |
2c0d84d6 | 1564 | |
3110a56e | 1565 | /* Language-specific decl information. */ |
12b195d9 | 1566 | #define DECL_LANG_SPECIFIC(NODE) (DECL_CHECK (NODE)->decl.lang_specific) |
8da1b058 RS |
1567 | |
1568 | /* In a VAR_DECL or FUNCTION_DECL, | |
1569 | nonzero means external reference: | |
1570 | do not allocate storage, and refer to a definition elsewhere. */ | |
12b195d9 | 1571 | #define DECL_EXTERNAL(NODE) (DECL_CHECK (NODE)->decl.external_flag) |
8da1b058 | 1572 | |
2ce3c6c6 | 1573 | /* In a VAR_DECL for a RECORD_TYPE, sets number for non-init_priority |
14b493d6 | 1574 | initializations. */ |
2ce3c6c6 JM |
1575 | #define DEFAULT_INIT_PRIORITY 65535 |
1576 | #define MAX_INIT_PRIORITY 65535 | |
9a6e70c9 | 1577 | #define MAX_RESERVED_INIT_PRIORITY 100 |
2ce3c6c6 | 1578 | |
60e9e4b7 DE |
1579 | /* In a TYPE_DECL |
1580 | nonzero means the detail info about this type is not dumped into stabs. | |
41077ce4 | 1581 | Instead it will generate cross reference ('x') of names. |
2ba84f36 | 1582 | This uses the same flag as DECL_EXTERNAL. */ |
770ae6cc | 1583 | #define TYPE_DECL_SUPPRESS_DEBUG(NODE) \ |
c46080ab | 1584 | (TYPE_DECL_CHECK (NODE)->decl.external_flag) |
60e9e4b7 | 1585 | |
a5f99f01 | 1586 | /* In VAR_DECL and PARM_DECL nodes, nonzero means declared `register'. */ |
12b195d9 | 1587 | #define DECL_REGISTER(NODE) (DECL_CHECK (NODE)->decl.regdecl_flag) |
c46080ab | 1588 | |
a5f99f01 RK |
1589 | /* In LABEL_DECL nodes, nonzero means that an error message about |
1590 | jumping into such a binding contour has been printed for this label. */ | |
770ae6cc | 1591 | #define DECL_ERROR_ISSUED(NODE) (LABEL_DECL_CHECK (NODE)->decl.regdecl_flag) |
c46080ab | 1592 | |
5a1c7968 | 1593 | /* In a FIELD_DECL, indicates this field should be bit-packed. */ |
770ae6cc | 1594 | #define DECL_PACKED(NODE) (FIELD_DECL_CHECK (NODE)->decl.regdecl_flag) |
c46080ab | 1595 | |
0e9e1e0a | 1596 | /* In a FUNCTION_DECL with a nonzero DECL_CONTEXT, indicates that a |
a5f99f01 | 1597 | static chain is not needed. */ |
770ae6cc | 1598 | #define DECL_NO_STATIC_CHAIN(NODE) \ |
c46080ab | 1599 | (FUNCTION_DECL_CHECK (NODE)->decl.regdecl_flag) |
8da1b058 RS |
1600 | |
1601 | /* Nonzero in a ..._DECL means this variable is ref'd from a nested function. | |
1602 | For VAR_DECL nodes, PARM_DECL nodes, and FUNCTION_DECL nodes. | |
1603 | ||
1604 | For LABEL_DECL nodes, nonzero if nonlocal gotos to the label are permitted. | |
1605 | ||
1606 | Also set in some languages for variables, etc., outside the normal | |
1607 | lexical scope, such as class instance variables. */ | |
12b195d9 | 1608 | #define DECL_NONLOCAL(NODE) (DECL_CHECK (NODE)->decl.nonlocal_flag) |
8da1b058 RS |
1609 | |
1610 | /* Nonzero in a FUNCTION_DECL means this function can be substituted | |
1611 | where it is called. */ | |
770ae6cc | 1612 | #define DECL_INLINE(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.inline_flag) |
8da1b058 | 1613 | |
b3c3af2f SB |
1614 | /* Nonzero in a FUNCTION_DECL means that this function was declared inline, |
1615 | such as via the `inline' keyword in C/C++. This flag controls the linkage | |
1616 | semantics of 'inline'; whether or not the function is inlined is | |
1617 | controlled by DECL_INLINE. */ | |
1618 | #define DECL_DECLARED_INLINE_P(NODE) \ | |
1619 | (FUNCTION_DECL_CHECK (NODE)->decl.declared_inline_flag) | |
bc522472 | 1620 | |
968b41a1 MA |
1621 | /* Value of the decls's visibility attribute */ |
1622 | #define DECL_VISIBILITY(NODE) (DECL_CHECK (NODE)->decl.visibility) | |
1623 | ||
5daf7c0a JM |
1624 | /* In a FUNCTION_DECL, nonzero if the function cannot be inlined. */ |
1625 | #define DECL_UNINLINABLE(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.uninlinable) | |
1626 | ||
41077ce4 | 1627 | /* In a VAR_DECL, nonzero if the data should be allocated from |
3d78f2e9 RH |
1628 | thread-local storage. */ |
1629 | #define DECL_THREAD_LOCAL(NODE) (VAR_DECL_CHECK (NODE)->decl.thread_local_flag) | |
1630 | ||
588d3ade AO |
1631 | /* In a FUNCTION_DECL, the saved representation of the body of the |
1632 | entire function. Usually a COMPOUND_STMT, but in C++ this may also | |
1633 | be a RETURN_INIT, CTOR_INITIALIZER, or TRY_BLOCK. */ | |
1634 | #define DECL_SAVED_TREE(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.saved_tree) | |
1635 | ||
684d9f3b | 1636 | /* List of FUNCTION_DECLs inlined into this function's body. */ |
588d3ade AO |
1637 | #define DECL_INLINED_FNS(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.inlined_fns) |
1638 | ||
140592a0 AG |
1639 | /* Nonzero in a FUNCTION_DECL means this function should be treated |
1640 | as if it were a malloc, meaning it returns a pointer that is | |
1641 | not an alias. */ | |
770ae6cc | 1642 | #define DECL_IS_MALLOC(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.malloc_flag) |
140592a0 | 1643 | |
2a8f6b90 JH |
1644 | /* Nonzero in a FUNCTION_DECL means this function should be treated |
1645 | as "pure" function (like const function, but may read global memory). */ | |
1646 | #define DECL_IS_PURE(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.pure_flag) | |
1647 | ||
8da1b058 RS |
1648 | /* Nonzero in a FIELD_DECL means it is a bit field, and must be accessed |
1649 | specially. */ | |
770ae6cc | 1650 | #define DECL_BIT_FIELD(NODE) (FIELD_DECL_CHECK (NODE)->decl.bit_field_flag) |
c46080ab | 1651 | |
8da1b058 RS |
1652 | /* In a LABEL_DECL, nonzero means label was defined inside a binding |
1653 | contour that restored a stack level and which is now exited. */ | |
770ae6cc | 1654 | #define DECL_TOO_LATE(NODE) (LABEL_DECL_CHECK (NODE)->decl.bit_field_flag) |
26db82d8 | 1655 | |
12a22e76 | 1656 | /* Unused in FUNCTION_DECL. */ |
26db82d8 | 1657 | |
b8af45d0 RS |
1658 | /* In a VAR_DECL that's static, |
1659 | nonzero if the space is in the text section. */ | |
770ae6cc | 1660 | #define DECL_IN_TEXT_SECTION(NODE) (VAR_DECL_CHECK (NODE)->decl.bit_field_flag) |
8da1b058 | 1661 | |
12a22e76 JM |
1662 | /* In a FUNCTION_DECL, nonzero means a built in function. */ |
1663 | #define DECL_BUILT_IN(NODE) (DECL_BUILT_IN_CLASS (NODE) != NOT_BUILT_IN) | |
c46080ab | 1664 | |
12a22e76 | 1665 | /* For a builtin function, identify which part of the compiler defined it. */ |
770ae6cc | 1666 | #define DECL_BUILT_IN_CLASS(NODE) \ |
c46080ab | 1667 | (FUNCTION_DECL_CHECK (NODE)->decl.built_in_class) |
12a22e76 | 1668 | |
5a1c7968 | 1669 | /* Used in VAR_DECLs to indicate that the variable is a vtable. |
2458b9c0 JM |
1670 | Used in FIELD_DECLs for vtable pointers. |
1671 | Used in FUNCTION_DECLs to indicate that the function is virtual. */ | |
12b195d9 | 1672 | #define DECL_VIRTUAL_P(NODE) (DECL_CHECK (NODE)->decl.virtual_flag) |
8da1b058 | 1673 | |
30801830 JM |
1674 | /* Used to indicate that the linkage status of this DECL is not yet known, |
1675 | so it should not be output now. */ | |
12b195d9 | 1676 | #define DECL_DEFER_OUTPUT(NODE) (DECL_CHECK (NODE)->decl.defer_output) |
30801830 | 1677 | |
adb23061 RK |
1678 | /* Used in PARM_DECLs whose type are unions to indicate that the |
1679 | argument should be passed in the same way that the first union | |
1680 | alternative would be passed. */ | |
770ae6cc | 1681 | #define DECL_TRANSPARENT_UNION(NODE) \ |
c46080ab | 1682 | (PARM_DECL_CHECK (NODE)->decl.transparent_union) |
adb23061 | 1683 | |
2c5f4139 JM |
1684 | /* Used in FUNCTION_DECLs to indicate that they should be run automatically |
1685 | at the beginning or end of execution. */ | |
770ae6cc | 1686 | #define DECL_STATIC_CONSTRUCTOR(NODE) \ |
c46080ab | 1687 | (FUNCTION_DECL_CHECK (NODE)->decl.static_ctor_flag) |
770ae6cc RK |
1688 | |
1689 | #define DECL_STATIC_DESTRUCTOR(NODE) \ | |
1690 | (FUNCTION_DECL_CHECK (NODE)->decl.static_dtor_flag) | |
2c5f4139 | 1691 | |
3edbc4b9 | 1692 | /* Used to indicate that this DECL represents a compiler-generated entity. */ |
12b195d9 | 1693 | #define DECL_ARTIFICIAL(NODE) (DECL_CHECK (NODE)->decl.artificial_flag) |
3edbc4b9 | 1694 | |
daefd78b | 1695 | /* Used to indicate that this DECL has weak linkage. */ |
12b195d9 | 1696 | #define DECL_WEAK(NODE) (DECL_CHECK (NODE)->decl.weak_flag) |
daefd78b | 1697 | |
c5bd82cb JM |
1698 | /* Used in TREE_PUBLIC decls to indicate that copies of this DECL in |
1699 | multiple translation units should be merged. */ | |
12b195d9 | 1700 | #define DECL_ONE_ONLY(NODE) (DECL_CHECK (NODE)->decl.transparent_union) |
c5bd82cb | 1701 | |
59182242 MM |
1702 | /* Used in a DECL to indicate that, even if it TREE_PUBLIC, it need |
1703 | not be put out unless it is needed in this translation unit. | |
1704 | Entities like this are shared across translation units (like weak | |
1705 | entities), but are guaranteed to be generated by any translation | |
1706 | unit that needs them, and therefore need not be put out anywhere | |
1707 | where they are not needed. DECL_COMDAT is just a hint to the | |
1708 | back-end; it is up to front-ends which set this flag to ensure | |
1709 | that there will never be any harm, other than bloat, in putting out | |
1710 | something which is DECL_COMDAT. */ | |
1711 | #define DECL_COMDAT(NODE) (DECL_CHECK (NODE)->decl.comdat_flag) | |
1712 | ||
07417085 KR |
1713 | /* Used in FUNCTION_DECLs to indicate that function entry and exit should |
1714 | be instrumented with calls to support routines. */ | |
770ae6cc | 1715 | #define DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT(NODE) \ |
c46080ab | 1716 | (FUNCTION_DECL_CHECK (NODE)->decl.no_instrument_function_entry_exit) |
07417085 | 1717 | |
a157febd GK |
1718 | /* Used in FUNCTION_DECLs to indicate that limit-stack-* should be |
1719 | disabled in this function. */ | |
770ae6cc | 1720 | #define DECL_NO_LIMIT_STACK(NODE) \ |
c46080ab | 1721 | (FUNCTION_DECL_CHECK (NODE)->decl.no_limit_stack) |
a157febd | 1722 | |
8da1b058 | 1723 | /* Additional flags for language-specific uses. */ |
12b195d9 ML |
1724 | #define DECL_LANG_FLAG_0(NODE) (DECL_CHECK (NODE)->decl.lang_flag_0) |
1725 | #define DECL_LANG_FLAG_1(NODE) (DECL_CHECK (NODE)->decl.lang_flag_1) | |
1726 | #define DECL_LANG_FLAG_2(NODE) (DECL_CHECK (NODE)->decl.lang_flag_2) | |
1727 | #define DECL_LANG_FLAG_3(NODE) (DECL_CHECK (NODE)->decl.lang_flag_3) | |
1728 | #define DECL_LANG_FLAG_4(NODE) (DECL_CHECK (NODE)->decl.lang_flag_4) | |
1729 | #define DECL_LANG_FLAG_5(NODE) (DECL_CHECK (NODE)->decl.lang_flag_5) | |
1730 | #define DECL_LANG_FLAG_6(NODE) (DECL_CHECK (NODE)->decl.lang_flag_6) | |
1731 | #define DECL_LANG_FLAG_7(NODE) (DECL_CHECK (NODE)->decl.lang_flag_7) | |
8da1b058 | 1732 | |
27da1b4d MK |
1733 | /* Used to indicate that the pointer to this DECL cannot be treated as |
1734 | an address constant. */ | |
1735 | #define DECL_NON_ADDR_CONST_P(NODE) (DECL_CHECK (NODE)->decl.non_addr_const_p) | |
1736 | ||
2bf105ab RK |
1737 | /* Used in a FIELD_DECL to indicate that we cannot form the address of |
1738 | this component. */ | |
1739 | #define DECL_NONADDRESSABLE_P(NODE) \ | |
1740 | (FIELD_DECL_CHECK (NODE)->decl.non_addressable) | |
1741 | ||
3932261a MM |
1742 | /* Used to indicate an alias set for the memory pointed to by this |
1743 | particular FIELD_DECL, PARM_DECL, or VAR_DECL, which must have | |
1744 | pointer (or reference) type. */ | |
1745 | #define DECL_POINTER_ALIAS_SET(NODE) \ | |
1746 | (DECL_CHECK (NODE)->decl.pointer_alias_set) | |
1747 | ||
1748 | /* Nonzero if an alias set has been assigned to this declaration. */ | |
1749 | #define DECL_POINTER_ALIAS_SET_KNOWN_P(NODE) \ | |
1750 | (DECL_POINTER_ALIAS_SET (NODE) != - 1) | |
1751 | ||
4b1e44be RH |
1752 | /* Nonzero for a decl which is at file scope. */ |
1753 | #define DECL_FILE_SCOPE_P(EXP) \ | |
1754 | (! DECL_CONTEXT (EXP) \ | |
1755 | || TREE_CODE (DECL_CONTEXT (EXP)) == TRANSLATION_UNIT_DECL) | |
1756 | ||
968b41a1 MA |
1757 | /* Enumerate visibility settings. */ |
1758 | ||
1759 | enum symbol_visibility | |
1760 | { | |
1761 | VISIBILITY_DEFAULT, | |
1762 | VISIBILITY_INTERNAL, | |
1763 | VISIBILITY_HIDDEN, | |
1764 | VISIBILITY_PROTECTED | |
1765 | }; | |
1766 | ||
eb3ae3e1 ZW |
1767 | struct function; |
1768 | ||
e2500fed | 1769 | struct tree_decl GTY(()) |
8da1b058 | 1770 | { |
2bf105ab | 1771 | struct tree_common common; |
e6986399 | 1772 | location_t locus; |
0e77444b | 1773 | unsigned int uid; |
2f78c311 | 1774 | tree size; |
e60a8c26 | 1775 | ENUM_BITFIELD(machine_mode) mode : 8; |
8da1b058 RS |
1776 | |
1777 | unsigned external_flag : 1; | |
1778 | unsigned nonlocal_flag : 1; | |
1779 | unsigned regdecl_flag : 1; | |
1780 | unsigned inline_flag : 1; | |
1781 | unsigned bit_field_flag : 1; | |
1782 | unsigned virtual_flag : 1; | |
8da1b058 | 1783 | unsigned ignored_flag : 1; |
c5caa350 | 1784 | unsigned abstract_flag : 1; |
8da1b058 | 1785 | |
3110a56e | 1786 | unsigned in_system_header_flag : 1; |
2c0d84d6 | 1787 | unsigned common_flag : 1; |
30801830 | 1788 | unsigned defer_output : 1; |
adb23061 | 1789 | unsigned transparent_union : 1; |
2c5f4139 JM |
1790 | unsigned static_ctor_flag : 1; |
1791 | unsigned static_dtor_flag : 1; | |
3edbc4b9 | 1792 | unsigned artificial_flag : 1; |
daefd78b | 1793 | unsigned weak_flag : 1; |
3110a56e | 1794 | |
9df2c88c RK |
1795 | unsigned non_addr_const_p : 1; |
1796 | unsigned no_instrument_function_entry_exit : 1; | |
9df2c88c RK |
1797 | unsigned comdat_flag : 1; |
1798 | unsigned malloc_flag : 1; | |
1799 | unsigned no_limit_stack : 1; | |
c149cc37 | 1800 | ENUM_BITFIELD(built_in_class) built_in_class : 2; |
2bf105ab | 1801 | unsigned pure_flag : 1; |
37a08a29 | 1802 | |
2bf105ab | 1803 | unsigned non_addressable : 1; |
11cf4d18 | 1804 | unsigned user_align : 1; |
5daf7c0a | 1805 | unsigned uninlinable : 1; |
3d78f2e9 | 1806 | unsigned thread_local_flag : 1; |
b3c3af2f | 1807 | unsigned declared_inline_flag : 1; |
968b41a1 MA |
1808 | ENUM_BITFIELD(symbol_visibility) visibility : 2; |
1809 | unsigned unused : 1; | |
1810 | /* one unused bit. */ | |
9df2c88c | 1811 | |
8da1b058 RS |
1812 | unsigned lang_flag_0 : 1; |
1813 | unsigned lang_flag_1 : 1; | |
1814 | unsigned lang_flag_2 : 1; | |
1815 | unsigned lang_flag_3 : 1; | |
1816 | unsigned lang_flag_4 : 1; | |
1817 | unsigned lang_flag_5 : 1; | |
1818 | unsigned lang_flag_6 : 1; | |
1819 | unsigned lang_flag_7 : 1; | |
1820 | ||
e2500fed | 1821 | union tree_decl_u1 { |
b850de4f MM |
1822 | /* In a FUNCTION_DECL for which DECL_BUILT_IN holds, this is |
1823 | DECL_FUNCTION_CODE. */ | |
9df2c88c | 1824 | enum built_in_function f; |
43aa4e05 | 1825 | /* In a FUNCTION_DECL for which DECL_BUILT_IN does not hold, this |
b850de4f MM |
1826 | is used by language-dependent code. */ |
1827 | HOST_WIDE_INT i; | |
1828 | /* DECL_ALIGN and DECL_OFFSET_ALIGN. (These are not used for | |
1829 | FUNCTION_DECLs). */ | |
e2500fed | 1830 | struct tree_decl_u1_a { |
46c5ad27 | 1831 | unsigned int align : 24; |
e2500fed GK |
1832 | unsigned int off_align : 8; |
1833 | } a; | |
1834 | } GTY ((skip (""))) u1; | |
09f532c9 | 1835 | |
2f78c311 ZW |
1836 | tree size_unit; |
1837 | tree name; | |
1838 | tree context; | |
1839 | tree arguments; /* Also used for DECL_FIELD_OFFSET */ | |
1840 | tree result; /* Also used for DECL_BIT_FIELD_TYPE */ | |
1841 | tree initial; /* Also used for DECL_QUALIFIER */ | |
1842 | tree abstract_origin; | |
1843 | tree assembler_name; | |
1844 | tree section_name; | |
91d231cb | 1845 | tree attributes; |
2f78c311 | 1846 | rtx rtl; /* RTL representation for object. */ |
06ceef4e | 1847 | |
9df2c88c | 1848 | /* In FUNCTION_DECL, if it is inline, holds the saved insn chain. |
770ae6cc | 1849 | In FIELD_DECL, is DECL_FIELD_BIT_OFFSET. |
9df2c88c RK |
1850 | In PARM_DECL, holds an RTL for the stack slot |
1851 | of register where the data was actually passed. | |
1852 | Used by Chill and Java in LABEL_DECL and by C++ and Java in VAR_DECL. */ | |
e2500fed GK |
1853 | union tree_decl_u2 { |
1854 | struct function * GTY ((tag ("FUNCTION_DECL"))) f; | |
1855 | rtx GTY ((tag ("PARM_DECL"))) r; | |
1856 | tree GTY ((tag ("FIELD_DECL"))) t; | |
17211ab5 | 1857 | int GTY ((tag ("VAR_DECL"))) i; |
e2500fed | 1858 | } GTY ((desc ("TREE_CODE((tree) &(%0))"))) u2; |
9df2c88c | 1859 | |
588d3ade AO |
1860 | /* In a FUNCTION_DECL, this is DECL_SAVED_TREE. */ |
1861 | tree saved_tree; | |
1862 | ||
1863 | /* In a FUNCTION_DECL, these are function data which is to be kept | |
1864 | as long as FUNCTION_DECL is kept. */ | |
1865 | tree inlined_fns; | |
1866 | ||
2f78c311 | 1867 | tree vindex; |
3bdf5ad1 | 1868 | HOST_WIDE_INT pointer_alias_set; |
8da1b058 RS |
1869 | /* Points to a structure whose details depend on the language in use. */ |
1870 | struct lang_decl *lang_specific; | |
1871 | }; | |
1872 | \f | |
e2500fed GK |
1873 | enum tree_node_structure_enum { |
1874 | TS_COMMON, | |
1875 | TS_INT_CST, | |
1876 | TS_REAL_CST, | |
1877 | TS_VECTOR, | |
1878 | TS_STRING, | |
1879 | TS_COMPLEX, | |
1880 | TS_IDENTIFIER, | |
1881 | TS_DECL, | |
1882 | TS_TYPE, | |
1883 | TS_LIST, | |
1884 | TS_VEC, | |
1885 | TS_EXP, | |
1886 | TS_BLOCK, | |
1887 | LAST_TS_ENUM | |
1888 | }; | |
1889 | ||
8da1b058 RS |
1890 | /* Define the overall contents of a tree node. |
1891 | It may be any of the structures declared above | |
1892 | for various types of node. */ | |
1893 | ||
e2500fed GK |
1894 | union tree_node GTY ((ptr_alias (union lang_tree_node), |
1895 | desc ("tree_node_structure (&%h)"))) | |
8da1b058 | 1896 | { |
e2500fed GK |
1897 | struct tree_common GTY ((tag ("TS_COMMON"))) common; |
1898 | struct tree_int_cst GTY ((tag ("TS_INT_CST"))) int_cst; | |
1899 | struct tree_real_cst GTY ((tag ("TS_REAL_CST"))) real_cst; | |
1900 | struct tree_vector GTY ((tag ("TS_VECTOR"))) vector; | |
1901 | struct tree_string GTY ((tag ("TS_STRING"))) string; | |
1902 | struct tree_complex GTY ((tag ("TS_COMPLEX"))) complex; | |
1903 | struct tree_identifier GTY ((tag ("TS_IDENTIFIER"))) identifier; | |
1904 | struct tree_decl GTY ((tag ("TS_DECL"))) decl; | |
1905 | struct tree_type GTY ((tag ("TS_TYPE"))) type; | |
1906 | struct tree_list GTY ((tag ("TS_LIST"))) list; | |
1907 | struct tree_vec GTY ((tag ("TS_VEC"))) vec; | |
1908 | struct tree_exp GTY ((tag ("TS_EXP"))) exp; | |
1909 | struct tree_block GTY ((tag ("TS_BLOCK"))) block; | |
8da1b058 | 1910 | }; |
1d2a8985 | 1911 | \f |
81b3411c BS |
1912 | /* Standard named or nameless data types of the C compiler. */ |
1913 | ||
1914 | enum tree_index | |
1915 | { | |
1916 | TI_ERROR_MARK, | |
1917 | TI_INTQI_TYPE, | |
1918 | TI_INTHI_TYPE, | |
1919 | TI_INTSI_TYPE, | |
1920 | TI_INTDI_TYPE, | |
1921 | TI_INTTI_TYPE, | |
1922 | ||
1923 | TI_UINTQI_TYPE, | |
1924 | TI_UINTHI_TYPE, | |
1925 | TI_UINTSI_TYPE, | |
1926 | TI_UINTDI_TYPE, | |
1927 | TI_UINTTI_TYPE, | |
41077ce4 | 1928 | |
81b3411c BS |
1929 | TI_INTEGER_ZERO, |
1930 | TI_INTEGER_ONE, | |
f2d1f0ba | 1931 | TI_INTEGER_MINUS_ONE, |
81b3411c BS |
1932 | TI_NULL_POINTER, |
1933 | ||
1934 | TI_SIZE_ZERO, | |
1935 | TI_SIZE_ONE, | |
770ae6cc RK |
1936 | |
1937 | TI_BITSIZE_ZERO, | |
1938 | TI_BITSIZE_ONE, | |
1939 | TI_BITSIZE_UNIT, | |
1940 | ||
5a98fa7b MM |
1941 | TI_PUBLIC, |
1942 | TI_PROTECTED, | |
1943 | TI_PRIVATE, | |
1944 | ||
de7df9eb JM |
1945 | TI_BOOLEAN_FALSE, |
1946 | TI_BOOLEAN_TRUE, | |
1947 | ||
81b3411c BS |
1948 | TI_COMPLEX_INTEGER_TYPE, |
1949 | TI_COMPLEX_FLOAT_TYPE, | |
1950 | TI_COMPLEX_DOUBLE_TYPE, | |
1951 | TI_COMPLEX_LONG_DOUBLE_TYPE, | |
1952 | ||
1953 | TI_FLOAT_TYPE, | |
1954 | TI_DOUBLE_TYPE, | |
1955 | TI_LONG_DOUBLE_TYPE, | |
1956 | ||
a2a919aa KG |
1957 | TI_FLOAT_PTR_TYPE, |
1958 | TI_DOUBLE_PTR_TYPE, | |
1959 | TI_LONG_DOUBLE_PTR_TYPE, | |
1960 | TI_INTEGER_PTR_TYPE, | |
1961 | ||
81b3411c BS |
1962 | TI_VOID_TYPE, |
1963 | TI_PTR_TYPE, | |
1964 | TI_CONST_PTR_TYPE, | |
c9f8536c | 1965 | TI_SIZE_TYPE, |
81b3411c BS |
1966 | TI_PTRDIFF_TYPE, |
1967 | TI_VA_LIST_TYPE, | |
de7df9eb | 1968 | TI_BOOLEAN_TYPE, |
81b3411c | 1969 | |
cbd5937a MM |
1970 | TI_VOID_LIST_NODE, |
1971 | ||
5b47282c GM |
1972 | TI_MAIN_IDENTIFIER, |
1973 | ||
81b3411c BS |
1974 | TI_MAX |
1975 | }; | |
1976 | ||
e2500fed | 1977 | extern GTY(()) tree global_trees[TI_MAX]; |
81b3411c BS |
1978 | |
1979 | #define error_mark_node global_trees[TI_ERROR_MARK] | |
41077ce4 | 1980 | |
81b3411c BS |
1981 | #define intQI_type_node global_trees[TI_INTQI_TYPE] |
1982 | #define intHI_type_node global_trees[TI_INTHI_TYPE] | |
1983 | #define intSI_type_node global_trees[TI_INTSI_TYPE] | |
1984 | #define intDI_type_node global_trees[TI_INTDI_TYPE] | |
1985 | #define intTI_type_node global_trees[TI_INTTI_TYPE] | |
1986 | ||
1987 | #define unsigned_intQI_type_node global_trees[TI_UINTQI_TYPE] | |
1988 | #define unsigned_intHI_type_node global_trees[TI_UINTHI_TYPE] | |
1989 | #define unsigned_intSI_type_node global_trees[TI_UINTSI_TYPE] | |
1990 | #define unsigned_intDI_type_node global_trees[TI_UINTDI_TYPE] | |
1991 | #define unsigned_intTI_type_node global_trees[TI_UINTTI_TYPE] | |
1992 | ||
81b3411c BS |
1993 | #define integer_zero_node global_trees[TI_INTEGER_ZERO] |
1994 | #define integer_one_node global_trees[TI_INTEGER_ONE] | |
f2d1f0ba | 1995 | #define integer_minus_one_node global_trees[TI_INTEGER_MINUS_ONE] |
81b3411c BS |
1996 | #define size_zero_node global_trees[TI_SIZE_ZERO] |
1997 | #define size_one_node global_trees[TI_SIZE_ONE] | |
770ae6cc RK |
1998 | #define bitsize_zero_node global_trees[TI_BITSIZE_ZERO] |
1999 | #define bitsize_one_node global_trees[TI_BITSIZE_ONE] | |
2000 | #define bitsize_unit_node global_trees[TI_BITSIZE_UNIT] | |
2001 | ||
dbbf88d1 | 2002 | /* Base access nodes. */ |
5a98fa7b MM |
2003 | #define access_public_node global_trees[TI_PUBLIC] |
2004 | #define access_protected_node global_trees[TI_PROTECTED] | |
2005 | #define access_private_node global_trees[TI_PRIVATE] | |
dbbf88d1 | 2006 | |
81b3411c BS |
2007 | #define null_pointer_node global_trees[TI_NULL_POINTER] |
2008 | ||
2009 | #define float_type_node global_trees[TI_FLOAT_TYPE] | |
2010 | #define double_type_node global_trees[TI_DOUBLE_TYPE] | |
2011 | #define long_double_type_node global_trees[TI_LONG_DOUBLE_TYPE] | |
2012 | ||
a2a919aa KG |
2013 | #define float_ptr_type_node global_trees[TI_FLOAT_PTR_TYPE] |
2014 | #define double_ptr_type_node global_trees[TI_DOUBLE_PTR_TYPE] | |
2015 | #define long_double_ptr_type_node global_trees[TI_LONG_DOUBLE_PTR_TYPE] | |
2016 | #define integer_ptr_type_node global_trees[TI_INTEGER_PTR_TYPE] | |
2017 | ||
81b3411c BS |
2018 | #define complex_integer_type_node global_trees[TI_COMPLEX_INTEGER_TYPE] |
2019 | #define complex_float_type_node global_trees[TI_COMPLEX_FLOAT_TYPE] | |
2020 | #define complex_double_type_node global_trees[TI_COMPLEX_DOUBLE_TYPE] | |
2021 | #define complex_long_double_type_node global_trees[TI_COMPLEX_LONG_DOUBLE_TYPE] | |
2022 | ||
2023 | #define void_type_node global_trees[TI_VOID_TYPE] | |
fc693822 | 2024 | /* The C type `void *'. */ |
81b3411c | 2025 | #define ptr_type_node global_trees[TI_PTR_TYPE] |
fc693822 | 2026 | /* The C type `const void *'. */ |
81b3411c | 2027 | #define const_ptr_type_node global_trees[TI_CONST_PTR_TYPE] |
c9f8536c MM |
2028 | /* The C type `size_t'. */ |
2029 | #define size_type_node global_trees[TI_SIZE_TYPE] | |
81b3411c BS |
2030 | #define ptrdiff_type_node global_trees[TI_PTRDIFF_TYPE] |
2031 | #define va_list_type_node global_trees[TI_VA_LIST_TYPE] | |
7145ef21 | 2032 | |
de7df9eb JM |
2033 | #define boolean_type_node global_trees[TI_BOOLEAN_TYPE] |
2034 | #define boolean_false_node global_trees[TI_BOOLEAN_FALSE] | |
2035 | #define boolean_true_node global_trees[TI_BOOLEAN_TRUE] | |
2036 | ||
cbd5937a MM |
2037 | /* The node that should be placed at the end of a parameter list to |
2038 | indicate that the function does not take a variable number of | |
2039 | arguments. The TREE_VALUE will be void_type_node and there will be | |
2040 | no TREE_CHAIN. Language-independent code should not assume | |
2041 | anything else about this node. */ | |
2042 | #define void_list_node global_trees[TI_VOID_LIST_NODE] | |
2043 | ||
5b47282c GM |
2044 | #define main_identifier_node global_trees[TI_MAIN_IDENTIFIER] |
2045 | #define MAIN_NAME_P(NODE) (IDENTIFIER_NODE_CHECK (NODE) == main_identifier_node) | |
2046 | ||
7145ef21 | 2047 | /* An enumeration of the standard C integer types. These must be |
ceeedfc1 NB |
2048 | ordered so that shorter types appear before longer ones, and so |
2049 | that signed types appear before unsigned ones, for the correct | |
2050 | functioning of interpret_integer() in c-lex.c. */ | |
41077ce4 | 2051 | enum integer_type_kind |
7145ef21 MM |
2052 | { |
2053 | itk_char, | |
2054 | itk_signed_char, | |
2055 | itk_unsigned_char, | |
2056 | itk_short, | |
2057 | itk_unsigned_short, | |
2058 | itk_int, | |
2059 | itk_unsigned_int, | |
2060 | itk_long, | |
2061 | itk_unsigned_long, | |
2062 | itk_long_long, | |
2063 | itk_unsigned_long_long, | |
2064 | itk_none | |
2065 | }; | |
2066 | ||
2067 | typedef enum integer_type_kind integer_type_kind; | |
2068 | ||
2069 | /* The standard C integer types. Use integer_type_kind to index into | |
2070 | this array. */ | |
e2500fed | 2071 | extern GTY(()) tree integer_types[itk_none]; |
7145ef21 MM |
2072 | |
2073 | #define char_type_node integer_types[itk_char] | |
2074 | #define signed_char_type_node integer_types[itk_signed_char] | |
2075 | #define unsigned_char_type_node integer_types[itk_unsigned_char] | |
2076 | #define short_integer_type_node integer_types[itk_short] | |
2077 | #define short_unsigned_type_node integer_types[itk_unsigned_short] | |
2078 | #define integer_type_node integer_types[itk_int] | |
2079 | #define unsigned_type_node integer_types[itk_unsigned_int] | |
2080 | #define long_integer_type_node integer_types[itk_long] | |
2081 | #define long_unsigned_type_node integer_types[itk_unsigned_long] | |
2082 | #define long_long_integer_type_node integer_types[itk_long_long] | |
2083 | #define long_long_unsigned_type_node integer_types[itk_unsigned_long_long] | |
dce81a1a JJ |
2084 | \f |
2085 | /* Set to the default thread-local storage (tls) model to use. */ | |
2086 | ||
2087 | enum tls_model { | |
2088 | TLS_MODEL_GLOBAL_DYNAMIC = 1, | |
2089 | TLS_MODEL_LOCAL_DYNAMIC, | |
2090 | TLS_MODEL_INITIAL_EXEC, | |
2091 | TLS_MODEL_LOCAL_EXEC | |
2092 | }; | |
7145ef21 | 2093 | |
dce81a1a | 2094 | extern enum tls_model flag_tls_default; |
25fdb4dc | 2095 | |
81b3411c | 2096 | \f |
f963b5d9 RS |
2097 | /* A pointer-to-function member type looks like: |
2098 | ||
2099 | struct { | |
2100 | __P __pfn; | |
2101 | ptrdiff_t __delta; | |
2102 | }; | |
2103 | ||
2104 | If __pfn is NULL, it is a NULL pointer-to-member-function. | |
2105 | ||
2106 | (Because the vtable is always the first thing in the object, we | |
2107 | don't need its offset.) If the function is virtual, then PFN is | |
2108 | one plus twice the index into the vtable; otherwise, it is just a | |
2109 | pointer to the function. | |
2110 | ||
2111 | Unfortunately, using the lowest bit of PFN doesn't work in | |
2112 | architectures that don't impose alignment requirements on function | |
2113 | addresses, or that use the lowest bit to tell one ISA from another, | |
2114 | for example. For such architectures, we use the lowest bit of | |
2115 | DELTA instead of the lowest bit of the PFN, and DELTA will be | |
2116 | multiplied by 2. */ | |
2117 | ||
2118 | enum ptrmemfunc_vbit_where_t | |
2119 | { | |
2120 | ptrmemfunc_vbit_in_pfn, | |
2121 | ptrmemfunc_vbit_in_delta | |
2122 | }; | |
2123 | \f | |
f837a861 MM |
2124 | #define NULL_TREE (tree) NULL |
2125 | ||
05ac140e | 2126 | extern GTY(()) tree frame_base_decl; |
46c5ad27 | 2127 | extern tree decl_assembler_name (tree); |
8da1b058 | 2128 | |
c5620996 GK |
2129 | /* Compute the number of bytes occupied by 'node'. This routine only |
2130 | looks at TREE_CODE and, if the code is TREE_VEC, TREE_VEC_LENGTH. */ | |
2131 | ||
46c5ad27 | 2132 | extern size_t tree_size (tree); |
c5620996 | 2133 | |
8da1b058 RS |
2134 | /* Lowest level primitive for allocating a node. |
2135 | The TREE_CODE is the only argument. Contents are initialized | |
2136 | to zero except for a few of the common fields. */ | |
2137 | ||
b9dcdee4 JH |
2138 | extern tree make_node_stat (enum tree_code MEM_STAT_DECL); |
2139 | #define make_node(t) make_node_stat (t MEM_STAT_INFO) | |
8da1b058 | 2140 | |
1b70d38a | 2141 | /* Make a copy of a node, with all the same contents. */ |
8da1b058 | 2142 | |
b9dcdee4 JH |
2143 | extern tree copy_node_stat (tree MEM_STAT_DECL); |
2144 | #define copy_node(t) copy_node_stat (t MEM_STAT_INFO) | |
8da1b058 RS |
2145 | |
2146 | /* Make a copy of a chain of TREE_LIST nodes. */ | |
2147 | ||
46c5ad27 | 2148 | extern tree copy_list (tree); |
8da1b058 RS |
2149 | |
2150 | /* Make a TREE_VEC. */ | |
2151 | ||
b9dcdee4 JH |
2152 | extern tree make_tree_vec_stat (int MEM_STAT_DECL); |
2153 | #define make_tree_vec(t) make_tree_vec_stat (t MEM_STAT_INFO) | |
8da1b058 RS |
2154 | |
2155 | /* Return the (unique) IDENTIFIER_NODE node for a given name. | |
2156 | The name is supplied as a char *. */ | |
2157 | ||
46c5ad27 | 2158 | extern tree get_identifier (const char *); |
8da1b058 | 2159 | |
7bb3fbbb RS |
2160 | #if GCC_VERSION >= 3000 |
2161 | #define get_identifier(str) \ | |
2162 | (__builtin_constant_p (str) \ | |
2163 | ? get_identifier_with_length ((str), strlen (str)) \ | |
2164 | : get_identifier (str)) | |
2165 | #endif | |
2166 | ||
2167 | ||
4bad9e39 APB |
2168 | /* Identical to get_identifier, except that the length is assumed |
2169 | known. */ | |
2170 | ||
7bb3fbbb | 2171 | extern tree get_identifier_with_length (const char *, size_t); |
4bad9e39 | 2172 | |
6b9300aa RK |
2173 | /* If an identifier with the name TEXT (a null-terminated string) has |
2174 | previously been referred to, return that node; otherwise return | |
2175 | NULL_TREE. */ | |
2176 | ||
46c5ad27 | 2177 | extern tree maybe_get_identifier (const char *); |
6b9300aa | 2178 | |
8da1b058 RS |
2179 | /* Construct various types of nodes. */ |
2180 | ||
b9daac31 | 2181 | #define build_int_2(LO, HI) \ |
f9e158c3 | 2182 | build_int_2_wide ((unsigned HOST_WIDE_INT) (LO), (HOST_WIDE_INT) (HI)) |
e5d70561 | 2183 | |
46c5ad27 AJ |
2184 | extern tree build (enum tree_code, tree, ...); |
2185 | extern tree build_nt (enum tree_code, ...); | |
2186 | ||
4221057e RH |
2187 | #if GCC_VERSION >= 3000 || __STDC_VERSION__ >= 199901L |
2188 | /* Use preprocessor trickery to map "build" to "buildN" where N is the | |
2189 | expected number of arguments. This is used for both efficiency (no | |
2190 | varargs), and checking (verifying number of passed arguments). */ | |
2191 | #define build(code, ...) \ | |
2192 | _buildN1(build, _buildC1(__VA_ARGS__))(code, __VA_ARGS__) | |
2193 | #define _buildN1(BASE, X) _buildN2(BASE, X) | |
2194 | #define _buildN2(BASE, X) BASE##X | |
2195 | #define _buildC1(...) _buildC2(__VA_ARGS__,9,8,7,6,5,4,3,2,1,0,0) | |
2196 | #define _buildC2(x,a1,a2,a3,a4,a5,a6,a7,a8,a9,c,...) c | |
2197 | #endif | |
2198 | ||
b9dcdee4 JH |
2199 | extern tree build0_stat (enum tree_code, tree MEM_STAT_DECL); |
2200 | #define build0(c,t) build0_stat (c,t MEM_STAT_INFO) | |
2201 | extern tree build1_stat (enum tree_code, tree, tree MEM_STAT_DECL); | |
2202 | #define build1(c,t1,t2) build1_stat (c,t1,t2 MEM_STAT_INFO) | |
2203 | extern tree build2_stat (enum tree_code, tree, tree, tree MEM_STAT_DECL); | |
2204 | #define build2(c,t1,t2,t3) build2_stat (c,t1,t2,t3 MEM_STAT_INFO) | |
2205 | extern tree build3_stat (enum tree_code, tree, tree, tree, tree MEM_STAT_DECL); | |
2206 | #define build3(c,t1,t2,t3,t4) build3_stat (c,t1,t2,t3,t4 MEM_STAT_INFO) | |
2207 | extern tree build4_stat (enum tree_code, tree, tree, tree, tree, | |
2208 | tree MEM_STAT_DECL); | |
2209 | #define build4(c,t1,t2,t3,t4,t5) build4_stat (c,t1,t2,t3,t4,t5 MEM_STAT_INFO) | |
4221057e | 2210 | |
46c5ad27 AJ |
2211 | extern tree build_int_2_wide (unsigned HOST_WIDE_INT, HOST_WIDE_INT); |
2212 | extern tree build_vector (tree, tree); | |
2213 | extern tree build_constructor (tree, tree); | |
2214 | extern tree build_real_from_int_cst (tree, tree); | |
2215 | extern tree build_complex (tree, tree, tree); | |
2216 | extern tree build_string (int, const char *); | |
b9dcdee4 JH |
2217 | extern tree build_tree_list_stat (tree, tree MEM_STAT_DECL); |
2218 | #define build_tree_list(t,q) build_tree_list_stat(t,q MEM_STAT_INFO) | |
2219 | extern tree build_decl_stat (enum tree_code, tree, tree MEM_STAT_DECL); | |
2220 | #define build_decl(c,t,q) build_decl_stat (c,t,q MEM_STAT_INFO) | |
46c5ad27 AJ |
2221 | extern tree build_block (tree, tree, tree, tree, tree); |
2222 | extern tree build_expr_wfl (tree, const char *, int, int); | |
8da1b058 RS |
2223 | |
2224 | /* Construct various nodes representing data types. */ | |
2225 | ||
46c5ad27 AJ |
2226 | extern tree make_signed_type (int); |
2227 | extern tree make_unsigned_type (int); | |
2228 | extern void initialize_sizetypes (void); | |
2229 | extern void set_sizetype (tree); | |
2230 | extern void fixup_unsigned_type (tree); | |
22421b79 | 2231 | extern tree build_pointer_type_for_mode (tree, enum machine_mode, bool); |
46c5ad27 | 2232 | extern tree build_pointer_type (tree); |
22421b79 | 2233 | extern tree build_reference_type_for_mode (tree, enum machine_mode, bool); |
46c5ad27 | 2234 | extern tree build_reference_type (tree); |
4a5eab38 PB |
2235 | extern tree build_vector_type_for_mode (tree, enum machine_mode); |
2236 | extern tree build_vector_type (tree innertype, int nunits); | |
46c5ad27 AJ |
2237 | extern tree build_type_no_quals (tree); |
2238 | extern tree build_index_type (tree); | |
2239 | extern tree build_index_2_type (tree, tree); | |
2240 | extern tree build_array_type (tree, tree); | |
2241 | extern tree build_function_type (tree, tree); | |
2242 | extern tree build_function_type_list (tree, ...); | |
43dc123f | 2243 | extern tree build_method_type_directly (tree, tree, tree); |
46c5ad27 AJ |
2244 | extern tree build_method_type (tree, tree); |
2245 | extern tree build_offset_type (tree, tree); | |
2246 | extern tree build_complex_type (tree); | |
2247 | extern tree array_type_nelts (tree); | |
2248 | ||
2249 | extern tree value_member (tree, tree); | |
2250 | extern tree purpose_member (tree, tree); | |
2251 | extern tree binfo_member (tree, tree); | |
fd917e0d | 2252 | |
46c5ad27 AJ |
2253 | extern int attribute_list_equal (tree, tree); |
2254 | extern int attribute_list_contained (tree, tree); | |
2255 | extern int tree_int_cst_equal (tree, tree); | |
2256 | extern int tree_int_cst_lt (tree, tree); | |
2257 | extern int tree_int_cst_compare (tree, tree); | |
2258 | extern int host_integerp (tree, int); | |
2259 | extern HOST_WIDE_INT tree_low_cst (tree, int); | |
2260 | extern int tree_int_cst_msb (tree); | |
2261 | extern int tree_int_cst_sgn (tree); | |
2262 | extern int tree_expr_nonnegative_p (tree); | |
2263 | extern int rtl_expr_nonnegative_p (rtx); | |
2264 | extern tree get_inner_array_type (tree); | |
12cfc830 | 2265 | |
f837a861 MM |
2266 | /* From expmed.c. Since rtl.h is included after tree.h, we can't |
2267 | put the prototype here. Rtl.h does declare the prototype if | |
2268 | tree.h had been included. */ | |
2269 | ||
46c5ad27 | 2270 | extern tree make_tree (tree, rtx); |
8da1b058 | 2271 | \f |
bad1b4ba RK |
2272 | /* Return a type like TTYPE except that its TYPE_ATTRIBUTES |
2273 | is ATTRIBUTE. | |
2274 | ||
2275 | Such modified types already made are recorded so that duplicates | |
2ba84f36 | 2276 | are not made. */ |
bad1b4ba | 2277 | |
46c5ad27 AJ |
2278 | extern tree build_type_attribute_variant (tree, tree); |
2279 | extern tree build_decl_attribute_variant (tree, tree); | |
bad1b4ba | 2280 | |
91d231cb JM |
2281 | /* Structure describing an attribute and a function to handle it. */ |
2282 | struct attribute_spec | |
2283 | { | |
2284 | /* The name of the attribute (without any leading or trailing __), | |
2285 | or NULL to mark the end of a table of attributes. */ | |
8b60264b | 2286 | const char *const name; |
91d231cb | 2287 | /* The minimum length of the list of arguments of the attribute. */ |
8b60264b | 2288 | const int min_length; |
91d231cb JM |
2289 | /* The maximum length of the list of arguments of the attribute |
2290 | (-1 for no maximum). */ | |
8b60264b | 2291 | const int max_length; |
91d231cb JM |
2292 | /* Whether this attribute requires a DECL. If it does, it will be passed |
2293 | from types of DECLs, function return types and array element types to | |
2294 | the DECLs, function types and array types respectively; but when | |
2295 | applied to a type in any other circumstances, it will be ignored with | |
2296 | a warning. (If greater control is desired for a given attribute, | |
2297 | this should be false, and the flags argument to the handler may be | |
2298 | used to gain greater control in that case.) */ | |
8b60264b | 2299 | const bool decl_required; |
91d231cb JM |
2300 | /* Whether this attribute requires a type. If it does, it will be passed |
2301 | from a DECL to the type of that DECL. */ | |
8b60264b | 2302 | const bool type_required; |
91d231cb JM |
2303 | /* Whether this attribute requires a function (or method) type. If it does, |
2304 | it will be passed from a function pointer type to the target type, | |
2305 | and from a function return type (which is not itself a function | |
2306 | pointer type) to the function type. */ | |
8b60264b | 2307 | const bool function_type_required; |
91d231cb JM |
2308 | /* Function to handle this attribute. NODE points to the node to which |
2309 | the attribute is to be applied. If a DECL, it should be modified in | |
2310 | place; if a TYPE, a copy should be created. NAME is the name of the | |
2311 | attribute (possibly with leading or trailing __). ARGS is the TREE_LIST | |
2312 | of the arguments (which may be NULL). FLAGS gives further information | |
2313 | about the context of the attribute. Afterwards, the attributes will | |
2314 | be added to the DECL_ATTRIBUTES or TYPE_ATTRIBUTES, as appropriate, | |
2315 | unless *NO_ADD_ATTRS is set to true (which should be done on error, | |
2316 | as well as in any other cases when the attributes should not be added | |
2317 | to the DECL or TYPE). Depending on FLAGS, any attributes to be | |
2318 | applied to another type or DECL later may be returned; | |
2319 | otherwise the return value should be NULL_TREE. This pointer may be | |
2320 | NULL if no special handling is required beyond the checks implied | |
2321 | by the rest of this structure. */ | |
46c5ad27 AJ |
2322 | tree (*const handler) (tree *node, tree name, tree args, |
2323 | int flags, bool *no_add_attrs); | |
91d231cb JM |
2324 | }; |
2325 | ||
91d231cb JM |
2326 | /* Flags that may be passed in the third argument of decl_attributes, and |
2327 | to handler functions for attributes. */ | |
2328 | enum attribute_flags | |
2329 | { | |
2330 | /* The type passed in is the type of a DECL, and any attributes that | |
2331 | should be passed in again to be applied to the DECL rather than the | |
2332 | type should be returned. */ | |
2333 | ATTR_FLAG_DECL_NEXT = 1, | |
2334 | /* The type passed in is a function return type, and any attributes that | |
2335 | should be passed in again to be applied to the function type rather | |
2336 | than the return type should be returned. */ | |
2337 | ATTR_FLAG_FUNCTION_NEXT = 2, | |
2338 | /* The type passed in is an array element type, and any attributes that | |
2339 | should be passed in again to be applied to the array type rather | |
2340 | than the element type should be returned. */ | |
2341 | ATTR_FLAG_ARRAY_NEXT = 4, | |
2342 | /* The type passed in is a structure, union or enumeration type being | |
2343 | created, and should be modified in place. */ | |
6431177a JM |
2344 | ATTR_FLAG_TYPE_IN_PLACE = 8, |
2345 | /* The attributes are being applied by default to a library function whose | |
2346 | name indicates known behavior, and should be silently ignored if they | |
2347 | are not in fact compatible with the function type. */ | |
2348 | ATTR_FLAG_BUILT_IN = 16 | |
91d231cb JM |
2349 | }; |
2350 | ||
501990bb NB |
2351 | /* Default versions of target-overridable functions. */ |
2352 | ||
46c5ad27 AJ |
2353 | extern tree merge_decl_attributes (tree, tree); |
2354 | extern tree merge_type_attributes (tree, tree); | |
2355 | extern void default_register_cpp_builtins (struct cpp_reader *); | |
d9525bec BK |
2356 | |
2357 | /* Split a list of declspecs and attributes into two. */ | |
2358 | ||
4682ae04 | 2359 | extern void split_specs_attrs (tree, tree *, tree *); |
d9525bec BK |
2360 | |
2361 | /* Strip attributes from a list of combined specs and attrs. */ | |
2362 | ||
4682ae04 | 2363 | extern tree strip_attrs (tree); |
d9525bec | 2364 | |
9c130398 DE |
2365 | /* Return 1 if an attribute and its arguments are valid for a decl or type. */ |
2366 | ||
46c5ad27 | 2367 | extern int valid_machine_attribute (tree, tree, tree, tree); |
9c130398 | 2368 | |
0e9e1e0a | 2369 | /* Given a tree node and a string, return nonzero if the tree node is |
9c130398 DE |
2370 | a valid attribute name for the string. */ |
2371 | ||
46c5ad27 | 2372 | extern int is_attribute_p (const char *, tree); |
9c130398 DE |
2373 | |
2374 | /* Given an attribute name and a list of attributes, return the list element | |
2375 | of the attribute or NULL_TREE if not found. */ | |
2376 | ||
46c5ad27 | 2377 | extern tree lookup_attribute (const char *, tree); |
6cb3d314 DE |
2378 | |
2379 | /* Given two attributes lists, return a list of their union. */ | |
2380 | ||
46c5ad27 | 2381 | extern tree merge_attributes (tree, tree); |
9c130398 | 2382 | |
672a6f42 NB |
2383 | #ifdef TARGET_DLLIMPORT_DECL_ATTRIBUTES |
2384 | /* Given two Windows decl attributes lists, possibly including | |
2385 | dllimport, return a list of their union . */ | |
46c5ad27 | 2386 | extern tree merge_dllimport_decl_attributes (tree, tree); |
672a6f42 NB |
2387 | #endif |
2388 | ||
896c3aa3 JM |
2389 | /* Check whether CAND is suitable to be returned from get_qualified_type |
2390 | (BASE, TYPE_QUALS). */ | |
2391 | ||
2392 | extern bool check_qualified_type (tree, tree, int); | |
2393 | ||
5101b304 MM |
2394 | /* Return a version of the TYPE, qualified as indicated by the |
2395 | TYPE_QUALS, if one exists. If no qualified version exists yet, | |
2396 | return NULL_TREE. */ | |
2397 | ||
46c5ad27 | 2398 | extern tree get_qualified_type (tree, int); |
5101b304 MM |
2399 | |
2400 | /* Like get_qualified_type, but creates the type if it does not | |
2401 | exist. This function never returns NULL_TREE. */ | |
3932261a | 2402 | |
46c5ad27 | 2403 | extern tree build_qualified_type (tree, int); |
3932261a MM |
2404 | |
2405 | /* Like build_qualified_type, but only deals with the `const' and | |
2406 | `volatile' qualifiers. This interface is retained for backwards | |
14b493d6 | 2407 | compatibility with the various front-ends; new code should use |
3932261a | 2408 | build_qualified_type instead. */ |
8da1b058 | 2409 | |
3932261a | 2410 | #define build_type_variant(TYPE, CONST_P, VOLATILE_P) \ |
b9daac31 | 2411 | build_qualified_type ((TYPE), \ |
3932261a MM |
2412 | ((CONST_P) ? TYPE_QUAL_CONST : 0) \ |
2413 | | ((VOLATILE_P) ? TYPE_QUAL_VOLATILE : 0)) | |
8da1b058 | 2414 | |
43100b14 RS |
2415 | /* Make a copy of a type node. */ |
2416 | ||
46c5ad27 | 2417 | extern tree build_type_copy (tree); |
43100b14 | 2418 | |
4977bab6 ZW |
2419 | /* Finish up a builtin RECORD_TYPE. Give it a name and provide its |
2420 | fields. Optionally specify an alignment, and then lsy it out. */ | |
2421 | ||
46c5ad27 AJ |
2422 | extern void finish_builtin_struct (tree, const char *, |
2423 | tree, tree); | |
4977bab6 | 2424 | |
8da1b058 | 2425 | /* Given a ..._TYPE node, calculate the TYPE_SIZE, TYPE_SIZE_UNIT, |
9328904c MM |
2426 | TYPE_ALIGN and TYPE_MODE fields. If called more than once on one |
2427 | node, does nothing except for the first time. */ | |
8da1b058 | 2428 | |
46c5ad27 | 2429 | extern void layout_type (tree); |
8da1b058 | 2430 | |
9328904c MM |
2431 | /* These functions allow a front-end to perform a manual layout of a |
2432 | RECORD_TYPE. (For instance, if the placement of subsequent fields | |
2433 | depends on the placement of fields so far.) Begin by calling | |
770ae6cc | 2434 | start_record_layout. Then, call place_field for each of the |
9328904c MM |
2435 | fields. Then, call finish_record_layout. See layout_type for the |
2436 | default way in which these functions are used. */ | |
2437 | ||
defd0dea | 2438 | typedef struct record_layout_info_s |
9328904c MM |
2439 | { |
2440 | /* The RECORD_TYPE that we are laying out. */ | |
2441 | tree t; | |
770ae6cc RK |
2442 | /* The offset into the record so far, in bytes, not including bits in |
2443 | BITPOS. */ | |
2444 | tree offset; | |
2445 | /* The last known alignment of SIZE. */ | |
2446 | unsigned int offset_align; | |
2447 | /* The bit position within the last OFFSET_ALIGN bits, in bits. */ | |
2448 | tree bitpos; | |
9328904c MM |
2449 | /* The alignment of the record so far, in bits. */ |
2450 | unsigned int record_align; | |
78d55cc8 JM |
2451 | /* The alignment of the record so far, ignoring #pragma pack and |
2452 | __attribute__ ((packed)), in bits. */ | |
770ae6cc | 2453 | unsigned int unpacked_align; |
f913c102 AO |
2454 | /* The previous field layed out. */ |
2455 | tree prev_field; | |
9328904c MM |
2456 | /* The static variables (i.e., class variables, as opposed to |
2457 | instance variables) encountered in T. */ | |
2458 | tree pending_statics; | |
e4850f36 DR |
2459 | /* Bits remaining in the current alignment group */ |
2460 | int remaining_in_alignment; | |
78d55cc8 JM |
2461 | /* True if we've seen a packed field that didn't have normal |
2462 | alignment anyway. */ | |
9328904c | 2463 | int packed_maybe_necessary; |
770ae6cc | 2464 | } *record_layout_info; |
9328904c | 2465 | |
46c5ad27 AJ |
2466 | extern void set_lang_adjust_rli (void (*) (record_layout_info)); |
2467 | extern record_layout_info start_record_layout (tree); | |
2468 | extern tree bit_from_pos (tree, tree); | |
2469 | extern tree byte_from_pos (tree, tree); | |
2470 | extern void pos_from_bit (tree *, tree *, unsigned int, tree); | |
2471 | extern void normalize_offset (tree *, tree *, unsigned int); | |
2472 | extern tree rli_size_unit_so_far (record_layout_info); | |
2473 | extern tree rli_size_so_far (record_layout_info); | |
2474 | extern void normalize_rli (record_layout_info); | |
2475 | extern void place_field (record_layout_info, tree); | |
2476 | extern void compute_record_mode (tree); | |
2477 | extern void finish_record_layout (record_layout_info, int); | |
9328904c | 2478 | |
8da1b058 RS |
2479 | /* Given a hashcode and a ..._TYPE node (for which the hashcode was made), |
2480 | return a canonicalized ..._TYPE node, so that duplicates are not made. | |
2481 | How the hash code is computed is up to the caller, as long as any two | |
2482 | callers that could hash identical-looking type nodes agree. */ | |
2483 | ||
46c5ad27 | 2484 | extern tree type_hash_canon (unsigned int, tree); |
8da1b058 RS |
2485 | |
2486 | /* Given a VAR_DECL, PARM_DECL, RESULT_DECL or FIELD_DECL node, | |
2487 | calculates the DECL_SIZE, DECL_SIZE_UNIT, DECL_ALIGN and DECL_MODE | |
2488 | fields. Call this only once for any given decl node. | |
2489 | ||
2490 | Second argument is the boundary that this field can be assumed to | |
2491 | be starting at (in bits). Zero means it can be assumed aligned | |
2492 | on any boundary that may be needed. */ | |
2493 | ||
46c5ad27 | 2494 | extern void layout_decl (tree, unsigned); |
8da1b058 | 2495 | |
72c602fc RK |
2496 | /* Return the mode for data of a given size SIZE and mode class CLASS. |
2497 | If LIMIT is nonzero, then don't use modes bigger than MAX_FIXED_MODE_SIZE. | |
2498 | The value is BLKmode if no other mode is found. This is like | |
2499 | mode_for_size, but is passed a tree. */ | |
2500 | ||
46c5ad27 | 2501 | extern enum machine_mode mode_for_size_tree (tree, enum mode_class, int); |
72c602fc | 2502 | |
8da1b058 RS |
2503 | /* Return an expr equal to X but certainly not valid as an lvalue. */ |
2504 | ||
46c5ad27 AJ |
2505 | extern tree non_lvalue (tree); |
2506 | extern tree pedantic_non_lvalue (tree); | |
2507 | ||
2508 | extern tree convert (tree, tree); | |
2509 | extern unsigned int expr_align (tree); | |
2510 | extern tree expr_first (tree); | |
2511 | extern tree expr_last (tree); | |
2512 | extern int expr_length (tree); | |
2513 | extern tree size_in_bytes (tree); | |
2514 | extern HOST_WIDE_INT int_size_in_bytes (tree); | |
2515 | extern tree bit_position (tree); | |
2516 | extern HOST_WIDE_INT int_bit_position (tree); | |
2517 | extern tree byte_position (tree); | |
2518 | extern HOST_WIDE_INT int_byte_position (tree); | |
fed3cef0 RK |
2519 | |
2520 | /* Define data structures, macros, and functions for handling sizes | |
2521 | and the various types used to represent sizes. */ | |
2522 | ||
2523 | enum size_type_kind | |
2524 | { | |
2ba84f36 KH |
2525 | SIZETYPE, /* Normal representation of sizes in bytes. */ |
2526 | SSIZETYPE, /* Signed representation of sizes in bytes. */ | |
fed3cef0 RK |
2527 | USIZETYPE, /* Unsigned representation of sizes in bytes. */ |
2528 | BITSIZETYPE, /* Normal representation of sizes in bits. */ | |
2529 | SBITSIZETYPE, /* Signed representation of sizes in bits. */ | |
a98ebe2e | 2530 | UBITSIZETYPE, /* Unsigned representation of sizes in bits. */ |
fed3cef0 RK |
2531 | TYPE_KIND_LAST}; |
2532 | ||
e2500fed | 2533 | extern GTY(()) tree sizetype_tab[(int) TYPE_KIND_LAST]; |
fed3cef0 RK |
2534 | |
2535 | #define sizetype sizetype_tab[(int) SIZETYPE] | |
2536 | #define bitsizetype sizetype_tab[(int) BITSIZETYPE] | |
2537 | #define ssizetype sizetype_tab[(int) SSIZETYPE] | |
2538 | #define usizetype sizetype_tab[(int) USIZETYPE] | |
2539 | #define sbitsizetype sizetype_tab[(int) SBITSIZETYPE] | |
2540 | #define ubitsizetype sizetype_tab[(int) UBITSIZETYPE] | |
2541 | ||
46c5ad27 AJ |
2542 | extern tree size_binop (enum tree_code, tree, tree); |
2543 | extern tree size_diffop (tree, tree); | |
2544 | extern tree size_int_wide (HOST_WIDE_INT, enum size_type_kind); | |
2545 | extern tree size_int_type_wide (HOST_WIDE_INT, tree); | |
06ceef4e | 2546 | |
fed3cef0 RK |
2547 | #define size_int_type(L, T) size_int_type_wide ((HOST_WIDE_INT) (L), T) |
2548 | #define size_int(L) size_int_wide ((HOST_WIDE_INT) (L), SIZETYPE) | |
2549 | #define ssize_int(L) size_int_wide ((HOST_WIDE_INT) (L), SSIZETYPE) | |
2550 | #define bitsize_int(L) size_int_wide ((HOST_WIDE_INT) (L), BITSIZETYPE) | |
2551 | #define sbitsize_int(L) size_int_wide ((HOST_WIDE_INT) (L), SBITSIZETYPE) | |
f8dac6eb | 2552 | |
46c5ad27 AJ |
2553 | extern tree round_up (tree, int); |
2554 | extern tree round_down (tree, int); | |
2555 | extern tree get_pending_sizes (void); | |
46c5ad27 AJ |
2556 | extern void put_pending_size (tree); |
2557 | extern void put_pending_sizes (tree); | |
8da1b058 RS |
2558 | |
2559 | /* Type for sizes of data-type. */ | |
2560 | ||
f8dac6eb R |
2561 | #define BITS_PER_UNIT_LOG \ |
2562 | ((BITS_PER_UNIT > 1) + (BITS_PER_UNIT > 2) + (BITS_PER_UNIT > 4) \ | |
2563 | + (BITS_PER_UNIT > 8) + (BITS_PER_UNIT > 16) + (BITS_PER_UNIT > 32) \ | |
2564 | + (BITS_PER_UNIT > 64) + (BITS_PER_UNIT > 128) + (BITS_PER_UNIT > 256)) | |
2565 | ||
2ba84f36 | 2566 | /* If nonzero, an upper limit on alignment of structure fields, in bits. */ |
729a2125 | 2567 | extern unsigned int maximum_field_alignment; |
8294accf | 2568 | |
0e9e1e0a | 2569 | /* If nonzero, the alignment of a bitstring or (power-)set value, in bits. */ |
729a2125 | 2570 | extern unsigned int set_alignment; |
8294accf | 2571 | |
8da1b058 RS |
2572 | /* Concatenate two lists (chains of TREE_LIST nodes) X and Y |
2573 | by making the last node in X point to Y. | |
2574 | Returns X, except if X is 0 returns Y. */ | |
2575 | ||
46c5ad27 | 2576 | extern tree chainon (tree, tree); |
8da1b058 RS |
2577 | |
2578 | /* Make a new TREE_LIST node from specified PURPOSE, VALUE and CHAIN. */ | |
2579 | ||
b9dcdee4 JH |
2580 | extern tree tree_cons_stat (tree, tree, tree MEM_STAT_DECL); |
2581 | #define tree_cons(t,q,w) tree_cons_stat (t,q,w MEM_STAT_INFO) | |
8da1b058 RS |
2582 | |
2583 | /* Return the last tree node in a chain. */ | |
2584 | ||
46c5ad27 | 2585 | extern tree tree_last (tree); |
8da1b058 RS |
2586 | |
2587 | /* Reverse the order of elements in a chain, and return the new head. */ | |
2588 | ||
46c5ad27 | 2589 | extern tree nreverse (tree); |
8da1b058 RS |
2590 | |
2591 | /* Returns the length of a chain of nodes | |
2592 | (number of chain pointers to follow before reaching a null pointer). */ | |
2593 | ||
46c5ad27 | 2594 | extern int list_length (tree); |
8da1b058 | 2595 | |
c3b247b4 JM |
2596 | /* Returns the number of FIELD_DECLs in a type. */ |
2597 | ||
46c5ad27 | 2598 | extern int fields_length (tree); |
c3b247b4 | 2599 | |
27b41650 KG |
2600 | /* Given an initializer INIT, return TRUE if INIT is zero or some |
2601 | aggregate of zeros. Otherwise return FALSE. */ | |
2602 | ||
46c5ad27 | 2603 | extern bool initializer_zerop (tree); |
27b41650 | 2604 | |
40209195 JM |
2605 | /* Given an initializer INIT, return TRUE if INIT is at least 3/4 zeros. |
2606 | Otherwise return FALSE. */ | |
2607 | ||
2608 | extern int mostly_zeros_p (tree); | |
2609 | ||
8da1b058 RS |
2610 | /* integer_zerop (tree x) is nonzero if X is an integer constant of value 0 */ |
2611 | ||
46c5ad27 | 2612 | extern int integer_zerop (tree); |
8da1b058 RS |
2613 | |
2614 | /* integer_onep (tree x) is nonzero if X is an integer constant of value 1 */ | |
2615 | ||
46c5ad27 | 2616 | extern int integer_onep (tree); |
8da1b058 RS |
2617 | |
2618 | /* integer_all_onesp (tree x) is nonzero if X is an integer constant | |
2619 | all of whose significant bits are 1. */ | |
2620 | ||
46c5ad27 | 2621 | extern int integer_all_onesp (tree); |
8da1b058 RS |
2622 | |
2623 | /* integer_pow2p (tree x) is nonzero is X is an integer constant with | |
2624 | exactly one bit 1. */ | |
2625 | ||
46c5ad27 | 2626 | extern int integer_pow2p (tree); |
8da1b058 | 2627 | |
4977bab6 ZW |
2628 | /* integer_nonzerop (tree x) is nonzero if X is an integer constant |
2629 | with a nonzero value. */ | |
2630 | ||
46c5ad27 | 2631 | extern int integer_nonzerop (tree); |
4977bab6 | 2632 | |
8da1b058 RS |
2633 | /* staticp (tree x) is nonzero if X is a reference to data allocated |
2634 | at a fixed address in memory. */ | |
2635 | ||
46c5ad27 | 2636 | extern int staticp (tree); |
8da1b058 RS |
2637 | |
2638 | /* Gets an error if argument X is not an lvalue. | |
2639 | Also returns 1 if X is an lvalue, 0 if not. */ | |
2640 | ||
46c5ad27 | 2641 | extern int lvalue_or_else (tree, const char *); |
8da1b058 RS |
2642 | |
2643 | /* save_expr (EXP) returns an expression equivalent to EXP | |
2644 | but it can be used multiple times within context CTX | |
2645 | and only evaluate EXP once. */ | |
2646 | ||
46c5ad27 | 2647 | extern tree save_expr (tree); |
8da1b058 | 2648 | |
a9ecacf6 OH |
2649 | /* Look inside EXPR and into any simple arithmetic operations. Return |
2650 | the innermost non-arithmetic node. */ | |
2651 | ||
46c5ad27 | 2652 | extern tree skip_simple_arithmetic (tree); |
a9ecacf6 OH |
2653 | |
2654 | /* Return TRUE if EXPR is a SAVE_EXPR or wraps simple arithmetic around a | |
2655 | SAVE_EXPR. Return FALSE otherwise. */ | |
2656 | ||
46c5ad27 | 2657 | extern bool saved_expr_p (tree); |
a9ecacf6 | 2658 | |
b7f6588d JM |
2659 | /* Returns the index of the first non-tree operand for CODE, or the number |
2660 | of operands if all are trees. */ | |
2661 | ||
46c5ad27 | 2662 | extern int first_rtl_op (enum tree_code); |
b7f6588d | 2663 | |
e2500fed GK |
2664 | /* Return which tree structure is used by T. */ |
2665 | ||
46c5ad27 | 2666 | enum tree_node_structure_enum tree_node_structure (tree); |
e2500fed | 2667 | |
679163cf | 2668 | /* unsave_expr (EXP) returns an expression equivalent to EXP but it |
582db8e4 | 2669 | can be used multiple times and will evaluate EXP in its entirety |
679163cf MS |
2670 | each time. */ |
2671 | ||
46c5ad27 | 2672 | extern tree unsave_expr (tree); |
679163cf | 2673 | |
14b493d6 | 2674 | /* Reset EXP in place so that it can be expanded again. Does not |
582db8e4 MM |
2675 | recurse into subtrees. */ |
2676 | ||
46c5ad27 | 2677 | extern void unsave_expr_1 (tree); |
582db8e4 | 2678 | |
194c7c45 RH |
2679 | /* Return 0 if it is safe to evaluate EXPR multiple times, |
2680 | return 1 if it is safe if EXPR is unsaved afterward, or | |
2681 | return 2 if it is completely unsafe. */ | |
46c5ad27 | 2682 | extern int unsafe_for_reeval (tree); |
3fe30ff6 | 2683 | |
7380d707 RK |
2684 | /* Return 1 if EXP contains a PLACEHOLDER_EXPR; i.e., if it represents a size |
2685 | or offset that depends on a field within a record. | |
2686 | ||
2687 | Note that we only allow such expressions within simple arithmetic | |
2688 | or a COND_EXPR. */ | |
2689 | ||
46c5ad27 | 2690 | extern bool contains_placeholder_p (tree); |
7a6cdb44 RK |
2691 | |
2692 | /* This macro calls the above function but short-circuits the common | |
2693 | case of a constant to save time. Also check for null. */ | |
2694 | ||
2695 | #define CONTAINS_PLACEHOLDER_P(EXP) \ | |
2696 | ((EXP) != 0 && ! TREE_CONSTANT (EXP) && contains_placeholder_p (EXP)) | |
2697 | ||
2698 | /* Return 1 if any part of the computation of TYPE involves a PLACEHOLDER_EXPR. | |
2699 | This includes size, bounds, qualifiers (for QUAL_UNION_TYPE) and field | |
2700 | positions. */ | |
2701 | ||
46c5ad27 | 2702 | extern bool type_contains_placeholder_p (tree); |
7380d707 | 2703 | |
b7f6588d JM |
2704 | /* Return 1 if EXP contains any expressions that produce cleanups for an |
2705 | outer scope to deal with. Used by fold. */ | |
2706 | ||
46c5ad27 | 2707 | extern int has_cleanups (tree); |
b7f6588d | 2708 | |
7380d707 RK |
2709 | /* Given a tree EXP, a FIELD_DECL F, and a replacement value R, |
2710 | return a tree with all occurrences of references to F in a | |
2711 | PLACEHOLDER_EXPR replaced by R. Note that we assume here that EXP | |
2712 | contains only arithmetic expressions. */ | |
2713 | ||
46c5ad27 | 2714 | extern tree substitute_in_expr (tree, tree, tree); |
7380d707 | 2715 | |
6fce44af RK |
2716 | /* This macro calls the above function but short-circuits the common |
2717 | case of a constant to save time and also checks for NULL. */ | |
2718 | ||
2719 | #define SUBSTITUTE_IN_EXPR(EXP, F, R) \ | |
2720 | ((EXP) == 0 || TREE_CONSTANT (EXP) ? (EXP) : substitute_in_expr (EXP, F, R)) | |
2721 | ||
2722 | /* Similar, but look for a PLACEHOLDER_EXPR in EXP and find a replacement | |
2723 | for it within OBJ, a tree that is an object or a chain of references. */ | |
2724 | ||
2725 | extern tree substitute_placeholder_in_expr (tree, tree); | |
2726 | ||
2727 | /* This macro calls the above function but short-circuits the common | |
2728 | case of a constant to save time and also checks for NULL. */ | |
2729 | ||
2730 | #define SUBSTITUTE_PLACEHOLDER_IN_EXPR(EXP, OBJ) \ | |
2731 | ((EXP) == 0 || TREE_CONSTANT (EXP) ? (EXP) \ | |
2732 | : substitute_placeholder_in_expr (EXP, OBJ)) | |
2733 | ||
90ca31be RS |
2734 | /* variable_size (EXP) is like save_expr (EXP) except that it |
2735 | is for the special case of something that is part of a | |
2736 | variable size for a data type. It makes special arrangements | |
2737 | to compute the value at the right time when the data type | |
2738 | belongs to a function parameter. */ | |
2739 | ||
46c5ad27 | 2740 | extern tree variable_size (tree); |
90ca31be | 2741 | |
dcc24678 | 2742 | /* stabilize_reference (EXP) returns a reference equivalent to EXP |
8da1b058 RS |
2743 | but it can be used multiple times |
2744 | and only evaluate the subexpressions once. */ | |
2745 | ||
46c5ad27 | 2746 | extern tree stabilize_reference (tree); |
8da1b058 | 2747 | |
1c8b10bb RK |
2748 | /* Subroutine of stabilize_reference; this is called for subtrees of |
2749 | references. Any expression with side-effects must be put in a SAVE_EXPR | |
2750 | to ensure that it is only evaluated once. */ | |
2751 | ||
46c5ad27 | 2752 | extern tree stabilize_reference_1 (tree); |
1c8b10bb | 2753 | |
8da1b058 RS |
2754 | /* Return EXP, stripped of any conversions to wider types |
2755 | in such a way that the result of converting to type FOR_TYPE | |
2756 | is the same as if EXP were converted to FOR_TYPE. | |
2757 | If FOR_TYPE is 0, it signifies EXP's type. */ | |
2758 | ||
46c5ad27 | 2759 | extern tree get_unwidened (tree, tree); |
8da1b058 RS |
2760 | |
2761 | /* Return OP or a simpler expression for a narrower value | |
2762 | which can be sign-extended or zero-extended to give back OP. | |
2763 | Store in *UNSIGNEDP_PTR either 1 if the value should be zero-extended | |
2764 | or 0 if the value should be sign-extended. */ | |
2765 | ||
46c5ad27 | 2766 | extern tree get_narrower (tree, int *); |
8da1b058 | 2767 | |
8da1b058 RS |
2768 | /* Given an expression EXP that may be a COMPONENT_REF or an ARRAY_REF, |
2769 | look for nested component-refs or array-refs at constant positions | |
2770 | and find the ultimate containing object, which is returned. */ | |
2771 | ||
46c5ad27 AJ |
2772 | extern tree get_inner_reference (tree, HOST_WIDE_INT *, HOST_WIDE_INT *, |
2773 | tree *, enum machine_mode *, int *, int *); | |
8da1b058 | 2774 | |
ed239f5a RK |
2775 | /* Return 1 if T is an expression that get_inner_reference handles. */ |
2776 | ||
46c5ad27 | 2777 | extern int handled_component_p (tree); |
ed239f5a | 2778 | |
140b60b4 MM |
2779 | /* Given a DECL or TYPE, return the scope in which it was declared, or |
2780 | NUL_TREE if there is no containing scope. */ | |
2781 | ||
46c5ad27 | 2782 | extern tree get_containing_scope (tree); |
140b60b4 | 2783 | |
8da1b058 RS |
2784 | /* Return the FUNCTION_DECL which provides this _DECL with its context, |
2785 | or zero if none. */ | |
46c5ad27 | 2786 | extern tree decl_function_context (tree); |
8da1b058 | 2787 | |
3635a54b RK |
2788 | /* Return the RECORD_TYPE, UNION_TYPE, or QUAL_UNION_TYPE which provides |
2789 | this _DECL with its context, or zero if none. */ | |
46c5ad27 | 2790 | extern tree decl_type_context (tree); |
8da1b058 RS |
2791 | |
2792 | /* Given the FUNCTION_DECL for the current function, | |
2793 | return zero if it is ok for this function to be inline. | |
2794 | Otherwise return a warning message with a single %s | |
2795 | for the function's name. */ | |
2796 | ||
46c5ad27 | 2797 | extern const char *function_cannot_inline_p (tree); |
a3c11cd3 JW |
2798 | |
2799 | /* Return 1 if EXPR is the real constant zero. */ | |
46c5ad27 | 2800 | extern int real_zerop (tree); |
8da1b058 RS |
2801 | \f |
2802 | /* Declare commonly used variables for tree structure. */ | |
2803 | ||
4812480a JM |
2804 | /* Nonzero means lvalues are limited to those valid in pedantic ANSI C. |
2805 | Zero means allow extended lvalues. */ | |
2806 | ||
2807 | extern int pedantic_lvalues; | |
2808 | ||
8da1b058 RS |
2809 | /* Nonzero means can safely call expand_expr now; |
2810 | otherwise layout_type puts variable sizes onto `pending_sizes' instead. */ | |
2811 | ||
2812 | extern int immediate_size_expand; | |
2813 | ||
2ba84f36 | 2814 | /* Points to the FUNCTION_DECL of the function whose body we are reading. */ |
8da1b058 | 2815 | |
e2500fed | 2816 | extern GTY(()) tree current_function_decl; |
8da1b058 | 2817 | |
00262c8a | 2818 | /* Nonzero means a FUNC_BEGIN label was emitted. */ |
e2500fed | 2819 | extern GTY(()) tree current_function_func_begin_label; |
00262c8a | 2820 | |
8da1b058 RS |
2821 | /* Nonzero means all ..._TYPE nodes should be allocated permanently. */ |
2822 | ||
2823 | extern int all_types_permanent; | |
2824 | ||
0eff02cd KG |
2825 | /* Exit a binding level. This function is provided by each language |
2826 | frontend. */ | |
2827 | extern tree poplevel (int, int, int); | |
2828 | ||
26db82d8 BS |
2829 | /* Declare a predefined function. Return the declaration. This function is |
2830 | provided by each language frontend. */ | |
46c5ad27 AJ |
2831 | extern tree builtin_function (const char *, tree, int, enum built_in_class, |
2832 | const char *, tree); | |
8da1b058 | 2833 | \f |
143f1945 | 2834 | /* In tree.c */ |
2aab7ceb | 2835 | extern unsigned crc32_string (unsigned, const char *); |
46c5ad27 AJ |
2836 | extern void clean_symbol_name (char *); |
2837 | extern tree get_file_function_name_long (const char *); | |
2838 | extern tree get_set_constructor_bits (tree, char *, int); | |
2839 | extern tree get_set_constructor_bytes (tree, unsigned char *, int); | |
2840 | extern tree get_callee_fndecl (tree); | |
fccc4eb2 | 2841 | extern void change_decl_assembler_name (tree, tree); |
46c5ad27 AJ |
2842 | extern int type_num_arguments (tree); |
2843 | extern tree lhd_unsave_expr_now (tree); | |
3168cb99 JL |
2844 | extern bool associative_tree_code (enum tree_code); |
2845 | extern bool commutative_tree_code (enum tree_code); | |
24965e7a | 2846 | |
143f1945 | 2847 | \f |
8da1b058 RS |
2848 | /* In stmt.c */ |
2849 | ||
46c5ad27 AJ |
2850 | extern void expand_fixups (rtx); |
2851 | extern tree expand_start_stmt_expr (int); | |
2852 | extern tree expand_end_stmt_expr (tree); | |
2853 | extern void expand_expr_stmt (tree); | |
2854 | extern void expand_expr_stmt_value (tree, int, int); | |
2855 | extern int warn_if_unused_value (tree); | |
2856 | extern void expand_decl_init (tree); | |
2857 | extern void clear_last_expr (void); | |
2858 | extern void expand_label (tree); | |
2859 | extern void expand_goto (tree); | |
2860 | extern void expand_asm (tree, int); | |
2861 | extern void expand_start_cond (tree, int); | |
2862 | extern void expand_end_cond (void); | |
2863 | extern void expand_start_else (void); | |
2864 | extern void expand_start_elseif (tree); | |
2865 | extern struct nesting *expand_start_loop (int); | |
2866 | extern struct nesting *expand_start_loop_continue_elsewhere (int); | |
2867 | extern struct nesting *expand_start_null_loop (void); | |
2868 | extern void expand_loop_continue_here (void); | |
2869 | extern void expand_end_loop (void); | |
2870 | extern void expand_end_null_loop (void); | |
2871 | extern int expand_continue_loop (struct nesting *); | |
2872 | extern int expand_exit_loop (struct nesting *); | |
2873 | extern int expand_exit_loop_if_false (struct nesting *,tree); | |
2874 | extern int expand_exit_loop_top_cond (struct nesting *, tree); | |
2875 | extern int expand_exit_something (void); | |
2876 | ||
2877 | extern void expand_return (tree); | |
2878 | extern int optimize_tail_recursion (tree, rtx); | |
2879 | extern void expand_start_bindings_and_block (int, tree); | |
a97901e6 MM |
2880 | #define expand_start_bindings(flags) \ |
2881 | expand_start_bindings_and_block(flags, NULL_TREE) | |
46c5ad27 AJ |
2882 | extern void expand_end_bindings (tree, int, int); |
2883 | extern void warn_about_unused_variables (tree); | |
2884 | extern void start_cleanup_deferral (void); | |
2885 | extern void end_cleanup_deferral (void); | |
2886 | extern int is_body_block (tree); | |
2887 | ||
2888 | extern int conditional_context (void); | |
2889 | extern struct nesting * current_nesting_level (void); | |
2890 | extern tree last_cleanup_this_contour (void); | |
2891 | extern void expand_start_case (int, tree, tree, const char *); | |
2892 | extern void expand_end_case_type (tree, tree); | |
6f9fdf4d | 2893 | #define expand_end_case(cond) expand_end_case_type (cond, NULL) |
46c5ad27 AJ |
2894 | extern int add_case_node (tree, tree, tree, tree *); |
2895 | extern int pushcase (tree, tree (*) (tree, tree), tree, tree *); | |
2896 | extern int pushcase_range (tree, tree, tree (*) (tree, tree), tree, tree *); | |
2897 | extern void using_eh_for_cleanups (void); | |
8da1b058 RS |
2898 | |
2899 | /* In fold-const.c */ | |
2900 | ||
4b63dccb RK |
2901 | /* Fold constants as much as possible in an expression. |
2902 | Returns the simplified expression. | |
2903 | Acts only on the top level of the expression; | |
2904 | if the argument itself cannot be simplified, its | |
2905 | subexpressions are not changed. */ | |
2906 | ||
46c5ad27 | 2907 | extern tree fold (tree); |
3e4093b6 | 2908 | extern tree fold_initializer (tree); |
46c5ad27 AJ |
2909 | extern tree fold_single_bit_test (enum tree_code, tree, tree, tree); |
2910 | ||
2911 | extern int force_fit_type (tree, int); | |
2912 | extern int add_double (unsigned HOST_WIDE_INT, HOST_WIDE_INT, | |
2913 | unsigned HOST_WIDE_INT, HOST_WIDE_INT, | |
2914 | unsigned HOST_WIDE_INT *, HOST_WIDE_INT *); | |
2915 | extern int neg_double (unsigned HOST_WIDE_INT, HOST_WIDE_INT, | |
2916 | unsigned HOST_WIDE_INT *, HOST_WIDE_INT *); | |
2917 | extern int mul_double (unsigned HOST_WIDE_INT, HOST_WIDE_INT, | |
2918 | unsigned HOST_WIDE_INT, HOST_WIDE_INT, | |
2919 | unsigned HOST_WIDE_INT *, HOST_WIDE_INT *); | |
2920 | extern void lshift_double (unsigned HOST_WIDE_INT, HOST_WIDE_INT, | |
2921 | HOST_WIDE_INT, unsigned int, | |
2922 | unsigned HOST_WIDE_INT *, HOST_WIDE_INT *, int); | |
2923 | extern void rshift_double (unsigned HOST_WIDE_INT, HOST_WIDE_INT, | |
2924 | HOST_WIDE_INT, unsigned int, | |
2925 | unsigned HOST_WIDE_INT *, HOST_WIDE_INT *, int); | |
2926 | extern void lrotate_double (unsigned HOST_WIDE_INT, HOST_WIDE_INT, | |
2927 | HOST_WIDE_INT, unsigned int, | |
2928 | unsigned HOST_WIDE_INT *, HOST_WIDE_INT *); | |
2929 | extern void rrotate_double (unsigned HOST_WIDE_INT, HOST_WIDE_INT, | |
2930 | HOST_WIDE_INT, unsigned int, | |
2931 | unsigned HOST_WIDE_INT *, HOST_WIDE_INT *); | |
2932 | ||
2933 | extern int div_and_round_double (enum tree_code, int, unsigned HOST_WIDE_INT, | |
2934 | HOST_WIDE_INT, unsigned HOST_WIDE_INT, | |
2935 | HOST_WIDE_INT, unsigned HOST_WIDE_INT *, | |
2936 | HOST_WIDE_INT *, unsigned HOST_WIDE_INT *, | |
2937 | HOST_WIDE_INT *); | |
2938 | ||
2939 | extern int operand_equal_p (tree, tree, int); | |
2940 | extern tree omit_one_operand (tree, tree, tree); | |
2941 | extern tree invert_truthvalue (tree); | |
c530479e | 2942 | |
4977bab6 | 2943 | /* In builtins.c */ |
46c5ad27 AJ |
2944 | extern tree fold_builtin (tree); |
2945 | extern enum built_in_function builtin_mathfn_code (tree); | |
2946 | extern tree build_function_call_expr (tree, tree); | |
2947 | extern tree mathfn_built_in (tree, enum built_in_function fn); | |
a3c11cd3 | 2948 | |
77f9af81 | 2949 | /* In convert.c */ |
46c5ad27 | 2950 | extern tree strip_float_extensions (tree); |
77f9af81 | 2951 | |
a0c33338 | 2952 | /* In alias.c */ |
46c5ad27 AJ |
2953 | extern void record_component_aliases (tree); |
2954 | extern HOST_WIDE_INT get_alias_set (tree); | |
2955 | extern int alias_sets_conflict_p (HOST_WIDE_INT, HOST_WIDE_INT); | |
5399d643 | 2956 | extern int alias_sets_might_conflict_p (HOST_WIDE_INT, HOST_WIDE_INT); |
46c5ad27 AJ |
2957 | extern int readonly_fields_p (tree); |
2958 | extern int objects_must_conflict_p (tree, tree); | |
bebe2280 | 2959 | |
a1d061a1 | 2960 | /* In tree.c */ |
46c5ad27 AJ |
2961 | extern int really_constant_p (tree); |
2962 | extern int int_fits_type_p (tree, tree); | |
2963 | extern bool variably_modified_type_p (tree); | |
2964 | extern int tree_log2 (tree); | |
2965 | extern int tree_floor_log2 (tree); | |
2966 | extern int simple_cst_equal (tree, tree); | |
2967 | extern unsigned int iterative_hash_expr (tree, unsigned int); | |
2968 | extern int compare_tree_int (tree, unsigned HOST_WIDE_INT); | |
2969 | extern int type_list_equal (tree, tree); | |
2970 | extern int chain_member (tree, tree); | |
2971 | extern tree type_hash_lookup (unsigned int, tree); | |
2972 | extern void type_hash_add (unsigned int, tree); | |
46c5ad27 AJ |
2973 | extern int simple_cst_list_equal (tree, tree); |
2974 | extern void dump_tree_statistics (void); | |
2975 | extern void expand_function_end (void); | |
2976 | extern void expand_function_start (tree, int); | |
2977 | extern void expand_pending_sizes (tree); | |
b34417a4 | 2978 | extern tree reconstruct_complex_type (tree, tree); |
46c5ad27 AJ |
2979 | |
2980 | extern int real_onep (tree); | |
2981 | extern int real_twop (tree); | |
2982 | extern int real_minus_onep (tree); | |
2983 | extern void init_ttree (void); | |
2984 | extern void build_common_tree_nodes (int); | |
2985 | extern void build_common_tree_nodes_2 (int); | |
2986 | extern tree build_range_type (tree, tree, tree); | |
a1d061a1 JL |
2987 | |
2988 | /* In function.c */ | |
46c5ad27 AJ |
2989 | extern void setjmp_protect_args (void); |
2990 | extern void setjmp_protect (tree); | |
2991 | extern void expand_main_function (void); | |
2992 | extern void init_dummy_function_start (void); | |
2993 | extern void expand_dummy_function_end (void); | |
2994 | extern void init_function_for_compilation (void); | |
3a70d621 | 2995 | extern void allocate_struct_function (tree); |
46c5ad27 AJ |
2996 | extern void init_function_start (tree); |
2997 | extern void assign_parms (tree); | |
2998 | extern void put_var_into_stack (tree, int); | |
2999 | extern void flush_addressof (tree); | |
3000 | extern void uninitialized_vars_warning (tree); | |
3001 | extern void setjmp_args_warning (void); | |
3002 | extern void mark_all_temps_used (void); | |
3003 | extern void init_temp_slots (void); | |
3004 | extern void combine_temp_slots (void); | |
3005 | extern void free_temp_slots (void); | |
3006 | extern void pop_temp_slots (void); | |
3007 | extern void push_temp_slots (void); | |
3008 | extern void preserve_temp_slots (rtx); | |
3009 | extern void preserve_rtl_expr_temps (tree); | |
61f71b34 | 3010 | extern int aggregate_value_p (tree, tree); |
46c5ad27 AJ |
3011 | extern void free_temps_for_rtl_expr (tree); |
3012 | extern void instantiate_virtual_regs (tree, rtx); | |
3013 | extern void unshare_all_rtl (tree, rtx); | |
3014 | extern void push_function_context (void); | |
3015 | extern void pop_function_context (void); | |
3016 | extern void push_function_context_to (tree); | |
3017 | extern void pop_function_context_from (tree); | |
a1d061a1 JL |
3018 | |
3019 | /* In print-rtl.c */ | |
3020 | #ifdef BUFSIZ | |
46c5ad27 | 3021 | extern void print_rtl (FILE *, rtx); |
a1d061a1 JL |
3022 | #endif |
3023 | ||
3024 | /* In print-tree.c */ | |
46c5ad27 | 3025 | extern void debug_tree (tree); |
a1d061a1 | 3026 | #ifdef BUFSIZ |
46c5ad27 AJ |
3027 | extern void print_node (FILE *, const char *, tree, int); |
3028 | extern void print_node_brief (FILE *, const char *, tree, int); | |
3029 | extern void indent_to (FILE *, int); | |
a1d061a1 JL |
3030 | #endif |
3031 | ||
3032 | /* In expr.c */ | |
46c5ad27 AJ |
3033 | extern rtx expand_builtin_return_addr (enum built_in_function, int, rtx); |
3034 | extern void check_max_integer_computation_mode (tree); | |
a1d061a1 JL |
3035 | |
3036 | /* In emit-rtl.c */ | |
46c5ad27 | 3037 | extern void start_sequence_for_rtl_expr (tree); |
0cea056b | 3038 | extern rtx emit_line_note (location_t); |
a1d061a1 | 3039 | |
3a8c995b | 3040 | /* In calls.c */ |
f2d33f13 | 3041 | |
fa5b060f SB |
3042 | /* Nonzero if this is a call to a `const' function. */ |
3043 | #define ECF_CONST 1 | |
3044 | /* Nonzero if this is a call to a `volatile' function. */ | |
3045 | #define ECF_NORETURN 2 | |
3046 | /* Nonzero if this is a call to malloc or a related function. */ | |
3047 | #define ECF_MALLOC 4 | |
3048 | /* Nonzero if it is plausible that this is a call to alloca. */ | |
3049 | #define ECF_MAY_BE_ALLOCA 8 | |
3050 | /* Nonzero if this is a call to a function that won't throw an exception. */ | |
3051 | #define ECF_NOTHROW 16 | |
3052 | /* Nonzero if this is a call to setjmp or a related function. */ | |
3053 | #define ECF_RETURNS_TWICE 32 | |
3054 | /* Nonzero if this is a call to `longjmp'. */ | |
3055 | #define ECF_LONGJMP 64 | |
3056 | /* Nonzero if this is a syscall that makes a new process in the image of | |
3057 | the current one. */ | |
3058 | #define ECF_FORK_OR_EXEC 128 | |
3059 | #define ECF_SIBCALL 256 | |
3060 | /* Nonzero if this is a call to "pure" function (like const function, | |
3061 | but may read memory. */ | |
3062 | #define ECF_PURE 512 | |
3063 | /* Nonzero if this is a call to a function that returns with the stack | |
3064 | pointer depressed. */ | |
3065 | #define ECF_SP_DEPRESSED 1024 | |
3066 | /* Nonzero if this call is known to always return. */ | |
3067 | #define ECF_ALWAYS_RETURN 2048 | |
3068 | /* Create libcall block around the call. */ | |
3069 | #define ECF_LIBCALL_BLOCK 4096 | |
3070 | ||
46c5ad27 | 3071 | extern int flags_from_decl_or_type (tree); |
f027e0a2 | 3072 | extern int call_expr_flags (tree); |
fa5b060f | 3073 | |
46c5ad27 AJ |
3074 | extern int setjmp_call_p (tree); |
3075 | extern bool alloca_call_p (tree); | |
3a8c995b | 3076 | |
bb9f8221 | 3077 | /* In attribs.c. */ |
0c96e965 RK |
3078 | |
3079 | /* Process the attributes listed in ATTRIBUTES and install them in *NODE, | |
3080 | which is either a DECL (including a TYPE_DECL) or a TYPE. If a DECL, | |
3081 | it should be modified in place; if a TYPE, a copy should be created | |
3082 | unless ATTR_FLAG_TYPE_IN_PLACE is set in FLAGS. FLAGS gives further | |
3083 | information, in the form of a bitwise OR of flags in enum attribute_flags | |
3084 | from tree.h. Depending on these flags, some attributes may be | |
3085 | returned to be applied at a later stage (for example, to apply | |
3086 | a decl attribute to the declaration rather than to its type). */ | |
4682ae04 | 3087 | extern tree decl_attributes (tree *, tree, int); |
bb9f8221 | 3088 | |
a1d061a1 | 3089 | /* In integrate.c */ |
46c5ad27 AJ |
3090 | extern void save_for_inline (tree); |
3091 | extern void set_decl_abstract_flags (tree, int); | |
3092 | extern void output_inline_function (tree); | |
3093 | extern void set_decl_origin_self (tree); | |
a1d061a1 | 3094 | |
a1d061a1 | 3095 | /* In stor-layout.c */ |
7b6d72fc | 3096 | extern void set_min_and_max_values_for_integral_type (tree, int, bool); |
46c5ad27 AJ |
3097 | extern void fixup_signed_type (tree); |
3098 | extern void internal_reference_types (void); | |
a1d061a1 JL |
3099 | |
3100 | /* varasm.c */ | |
46c5ad27 AJ |
3101 | extern void make_decl_rtl (tree, const char *); |
3102 | extern void make_decl_one_only (tree); | |
3103 | extern int supports_one_only (void); | |
3104 | extern void variable_section (tree, int); | |
3105 | enum tls_model decl_tls_model (tree); | |
46c5ad27 AJ |
3106 | extern void resolve_unique_section (tree, int, int); |
3107 | extern void mark_referenced (tree); | |
810db579 | 3108 | extern void notice_global_symbol (tree); |
a1d061a1 | 3109 | |
a1d061a1 | 3110 | /* In stmt.c */ |
46c5ad27 AJ |
3111 | extern void emit_nop (void); |
3112 | extern void expand_computed_goto (tree); | |
3113 | extern bool parse_output_constraint (const char **, int, int, int, | |
3114 | bool *, bool *, bool *); | |
1456deaf JM |
3115 | extern bool parse_input_constraint (const char **, int, int, int, int, |
3116 | const char * const *, bool *, bool *); | |
177560b2 | 3117 | extern void expand_asm_operands (tree, tree, tree, tree, int, location_t); |
7dc8b126 | 3118 | extern tree resolve_asm_operand_names (tree, tree, tree); |
46c5ad27 AJ |
3119 | extern int any_pending_cleanups (void); |
3120 | extern void init_stmt_for_function (void); | |
3121 | extern void expand_start_target_temps (void); | |
3122 | extern void expand_end_target_temps (void); | |
3123 | extern void expand_elseif (tree); | |
3124 | extern void save_stack_pointer (void); | |
3125 | extern void expand_decl (tree); | |
3126 | extern int expand_decl_cleanup (tree, tree); | |
3127 | extern int expand_decl_cleanup_eh (tree, tree, int); | |
3128 | extern void expand_anon_union_decl (tree, tree, tree); | |
46c5ad27 AJ |
3129 | extern HOST_WIDE_INT all_cases_count (tree, int *); |
3130 | extern void check_for_full_enumeration_handling (tree); | |
3131 | extern void declare_nonlocal_label (tree); | |
a1d061a1 | 3132 | |
496651db MM |
3133 | /* If KIND=='I', return a suitable global initializer (constructor) name. |
3134 | If KIND=='D', return a suitable global clean-up (destructor) name. */ | |
46c5ad27 | 3135 | extern tree get_file_function_name (int); |
af4142d5 JM |
3136 | \f |
3137 | /* Interface of the DWARF2 unwind info support. */ | |
3138 | ||
af4142d5 JM |
3139 | /* Generate a new label for the CFI info to refer to. */ |
3140 | ||
46c5ad27 | 3141 | extern char *dwarf2out_cfi_label (void); |
af4142d5 JM |
3142 | |
3143 | /* Entry point to update the canonical frame address (CFA). */ | |
3144 | ||
0ab5b679 | 3145 | extern void dwarf2out_def_cfa (const char *, unsigned, HOST_WIDE_INT); |
af4142d5 JM |
3146 | |
3147 | /* Add the CFI for saving a register window. */ | |
3148 | ||
46c5ad27 | 3149 | extern void dwarf2out_window_save (const char *); |
af4142d5 JM |
3150 | |
3151 | /* Add a CFI to update the running total of the size of arguments pushed | |
3152 | onto the stack. */ | |
3153 | ||
0ab5b679 | 3154 | extern void dwarf2out_args_size (const char *, HOST_WIDE_INT); |
af4142d5 JM |
3155 | |
3156 | /* Entry point for saving a register to the stack. */ | |
3157 | ||
0ab5b679 | 3158 | extern void dwarf2out_reg_save (const char *, unsigned, HOST_WIDE_INT); |
af4142d5 JM |
3159 | |
3160 | /* Entry point for saving the return address in the stack. */ | |
3161 | ||
0ab5b679 | 3162 | extern void dwarf2out_return_save (const char *, HOST_WIDE_INT); |
af4142d5 JM |
3163 | |
3164 | /* Entry point for saving the return address in a register. */ | |
3165 | ||
46c5ad27 | 3166 | extern void dwarf2out_return_reg (const char *, unsigned); |
af4142d5 | 3167 | |
588d3ade AO |
3168 | /* The type of a function that walks over tree structure. */ |
3169 | ||
46c5ad27 | 3170 | typedef tree (*walk_tree_fn) (tree *, int *, void *); |
588d3ade | 3171 | |
89d684bb BM |
3172 | /* In tree-dump.c */ |
3173 | ||
3174 | /* Different tree dump places. When you add new tree dump places, | |
3175 | extend the DUMP_FILES array in tree-dump.c */ | |
3176 | enum tree_dump_index | |
3177 | { | |
3178 | TDI_all, /* dump the whole translation unit */ | |
3179 | TDI_class, /* dump class hierarchy */ | |
3180 | TDI_original, /* dump each function before optimizing it */ | |
3181 | TDI_optimized, /* dump each function after optimizing it */ | |
3182 | TDI_inlined, /* dump each function after inlining | |
3183 | within it. */ | |
3184 | TDI_end | |
3185 | }; | |
3186 | ||
3187 | /* Bit masks to control tree dumping. Not all values are applicable to | |
3188 | all tree dumps. Add new ones at the end. When you define new | |
3189 | values, extend the DUMP_OPTIONS array in tree-dump.c */ | |
3190 | #define TDF_ADDRESS (1 << 0) /* dump node addresses */ | |
3191 | #define TDF_SLIM (1 << 1) /* don't go wild following links */ | |
3192 | ||
3193 | typedef struct dump_info *dump_info_p; | |
3194 | ||
46c5ad27 AJ |
3195 | extern int dump_flag (dump_info_p, int, tree); |
3196 | extern int dump_enabled_p (enum tree_dump_index); | |
3197 | extern FILE *dump_begin (enum tree_dump_index, int *); | |
3198 | extern void dump_end (enum tree_dump_index, FILE *); | |
3199 | extern void dump_node (tree, int, FILE *); | |
3200 | extern int dump_switch_p (const char *); | |
3201 | extern const char *dump_flag_name (enum tree_dump_index); | |
a560d4d4 JH |
3202 | /* Assign the RTX to declaration. */ |
3203 | ||
46c5ad27 | 3204 | extern void set_decl_rtl (tree, rtx); |
fbe6ec81 | 3205 | extern void set_decl_incoming_rtl (tree, rtx); |
9a6bb3f7 | 3206 | \f |
987009bf ZW |
3207 | /* Redefine abort to report an internal error w/o coredump, and |
3208 | reporting the location of the error in the source file. This logic | |
3209 | is duplicated in rtl.h and tree.h because every file that needs the | |
3210 | special abort includes one or both. toplev.h gets too few files, | |
3211 | system.h gets too many. */ | |
3212 | ||
46c5ad27 | 3213 | extern void fancy_abort (const char *, int, const char *) |
987009bf | 3214 | ATTRIBUTE_NORETURN; |
fbfc1192 | 3215 | #define abort() fancy_abort (__FILE__, __LINE__, __FUNCTION__) |
df89f8e7 | 3216 | |
adc4adcd | 3217 | /* Enum and arrays used for tree allocation stats. |
938d968e | 3218 | Keep in sync with tree.c:tree_node_kind_names. */ |
adc4adcd GP |
3219 | typedef enum |
3220 | { | |
3221 | d_kind, | |
3222 | t_kind, | |
3223 | b_kind, | |
3224 | s_kind, | |
3225 | r_kind, | |
3226 | e_kind, | |
3227 | c_kind, | |
3228 | id_kind, | |
3229 | perm_list_kind, | |
3230 | temp_list_kind, | |
3231 | vec_kind, | |
3232 | x_kind, | |
3233 | lang_decl, | |
3234 | lang_type, | |
3235 | all_kinds | |
3236 | } tree_node_kind; | |
3237 | ||
3238 | extern int tree_node_counts[]; | |
3239 | extern int tree_node_sizes[]; | |
3240 | ||
df89f8e7 | 3241 | #endif /* GCC_TREE_H */ |