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8da1b058 | 1 | /* Front-end tree definitions for GNU compiler. |
06ceef4e RK |
2 | Copyright (C) 1989, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000 |
3 | Free Software Foundation, Inc. | |
8da1b058 RS |
4 | |
5 | This file is part of GNU CC. | |
6 | ||
7 | GNU CC is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GNU CC is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU CC; see the file COPYING. If not, write to | |
e9fa0c7c RK |
19 | the Free Software Foundation, 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
8da1b058 RS |
21 | |
22 | #include "machmode.h" | |
9f8f4efe | 23 | #include "version.h" |
8da1b058 | 24 | |
d6b12657 RK |
25 | #ifndef RTX_CODE |
26 | struct rtx_def; | |
27 | #endif | |
28 | ||
29 | /* Codes of tree nodes */ | |
8da1b058 RS |
30 | |
31 | #define DEFTREECODE(SYM, STRING, TYPE, NARGS) SYM, | |
32 | ||
33 | enum tree_code { | |
34 | #include "tree.def" | |
35 | ||
6dc42e49 | 36 | LAST_AND_UNUSED_TREE_CODE /* A convenient way to get a value for |
8da1b058 RS |
37 | NUM_TREE_CODE. */ |
38 | }; | |
39 | ||
40 | #undef DEFTREECODE | |
41 | ||
42 | /* Number of tree codes. */ | |
43 | #define NUM_TREE_CODES ((int)LAST_AND_UNUSED_TREE_CODE) | |
44 | ||
45 | /* Indexed by enum tree_code, contains a character which is | |
46 | `<' for a comparison expression, `1', for a unary arithmetic | |
47 | expression, `2' for a binary arithmetic expression, `e' for | |
48 | other types of expressions, `r' for a reference, `c' for a | |
49 | constant, `d' for a decl, `t' for a type, `s' for a statement, | |
50 | and `x' for anything else (TREE_LIST, IDENTIFIER, etc). */ | |
51 | ||
0a6969ad JC |
52 | #define MAX_TREE_CODES 256 |
53 | extern char tree_code_type[MAX_TREE_CODES]; | |
54 | #define TREE_CODE_CLASS(CODE) tree_code_type[(int) (CODE)] | |
8da1b058 | 55 | |
4da05956 MM |
56 | /* Returns non-zero iff CLASS is the tree-code class of an |
57 | expression. */ | |
58 | ||
59 | #define IS_EXPR_CODE_CLASS(CLASS) \ | |
8830da36 | 60 | (CLASS == '<' || CLASS == '1' || CLASS == '2' || CLASS == 'e') |
4da05956 | 61 | |
8da1b058 RS |
62 | /* Number of argument-words in each kind of tree-node. */ |
63 | ||
0a6969ad | 64 | extern int tree_code_length[MAX_TREE_CODES]; |
8da1b058 RS |
65 | |
66 | /* Names of tree components. */ | |
67 | ||
5f8ded66 | 68 | extern const char *tree_code_name[MAX_TREE_CODES]; |
8da1b058 | 69 | \f |
9df2c88c RK |
70 | /* Classify which part of the compiler has defined a given builtin function. |
71 | Note that we assume below that this is no more than two bits. */ | |
26db82d8 BS |
72 | enum built_in_class |
73 | { | |
74 | NOT_BUILT_IN = 0, | |
75 | BUILT_IN_FRONTEND, | |
76 | BUILT_IN_MD, | |
77 | BUILT_IN_NORMAL | |
78 | }; | |
9df2c88c RK |
79 | |
80 | /* Names for the above. */ | |
fd05eb80 | 81 | extern const char *const built_in_class_names[4]; |
9df2c88c | 82 | |
8da1b058 RS |
83 | /* Codes that identify the various built in functions |
84 | so that expand_call can identify them quickly. */ | |
85 | ||
cb1072f4 | 86 | #define DEF_BUILTIN(x) x, |
8da1b058 RS |
87 | enum built_in_function |
88 | { | |
cb1072f4 | 89 | #include "builtins.def" |
972ded9c RS |
90 | |
91 | /* Upper bound on non-language-specific builtins. */ | |
92 | END_BUILTINS | |
8da1b058 | 93 | }; |
cb1072f4 | 94 | #undef DEF_BUILTIN |
9df2c88c RK |
95 | |
96 | /* Names for the above. */ | |
fd05eb80 | 97 | extern const char *const built_in_names[(int) END_BUILTINS]; |
8da1b058 RS |
98 | \f |
99 | /* The definition of tree nodes fills the next several pages. */ | |
100 | ||
101 | /* A tree node can represent a data type, a variable, an expression | |
102 | or a statement. Each node has a TREE_CODE which says what kind of | |
103 | thing it represents. Some common codes are: | |
104 | INTEGER_TYPE -- represents a type of integers. | |
105 | ARRAY_TYPE -- represents a type of pointer. | |
106 | VAR_DECL -- represents a declared variable. | |
107 | INTEGER_CST -- represents a constant integer value. | |
108 | PLUS_EXPR -- represents a sum (an expression). | |
109 | ||
110 | As for the contents of a tree node: there are some fields | |
111 | that all nodes share. Each TREE_CODE has various special-purpose | |
112 | fields as well. The fields of a node are never accessed directly, | |
113 | always through accessor macros. */ | |
114 | ||
115 | /* This type is used everywhere to refer to a tree node. */ | |
116 | ||
117 | typedef union tree_node *tree; | |
118 | ||
8da1b058 RS |
119 | /* Every kind of tree node starts with this structure, |
120 | so all nodes have these fields. | |
121 | ||
76c9d226 MM |
122 | See the accessor macros, defined below, for documentation of the |
123 | fields. */ | |
8da1b058 RS |
124 | |
125 | struct tree_common | |
126 | { | |
127 | union tree_node *chain; | |
128 | union tree_node *type; | |
c149cc37 | 129 | ENUM_BITFIELD(tree_code) code : 8; |
8da1b058 RS |
130 | unsigned side_effects_flag : 1; |
131 | unsigned constant_flag : 1; | |
132 | unsigned permanent_flag : 1; | |
133 | unsigned addressable_flag : 1; | |
134 | unsigned volatile_flag : 1; | |
135 | unsigned readonly_flag : 1; | |
136 | unsigned unsigned_flag : 1; | |
137 | unsigned asm_written_flag: 1; | |
138 | ||
139 | unsigned used_flag : 1; | |
12a22e76 | 140 | unsigned nothrow_flag : 1; |
8da1b058 RS |
141 | unsigned static_flag : 1; |
142 | unsigned public_flag : 1; | |
143 | unsigned private_flag : 1; | |
144 | unsigned protected_flag : 1; | |
145 | ||
146 | unsigned lang_flag_0 : 1; | |
147 | unsigned lang_flag_1 : 1; | |
148 | unsigned lang_flag_2 : 1; | |
149 | unsigned lang_flag_3 : 1; | |
150 | unsigned lang_flag_4 : 1; | |
151 | unsigned lang_flag_5 : 1; | |
152 | unsigned lang_flag_6 : 1; | |
0a25f1f5 | 153 | |
005537df | 154 | /* There is room for three more flags. */ |
8da1b058 RS |
155 | }; |
156 | ||
a5f99f01 RK |
157 | /* The following table lists the uses of each of the above flags and |
158 | for which types of nodes they are defined. Note that expressions | |
159 | include decls. | |
160 | ||
161 | addressable_flag: | |
162 | ||
163 | TREE_ADDRESSABLE in | |
164 | VAR_DECL, FUNCTION_DECL, CONSTRUCTOR, LABEL_DECL, ..._TYPE | |
165 | IDENTIFIER_NODE | |
166 | ||
167 | static_flag: | |
168 | ||
169 | TREE_STATIC in | |
e5e809f4 | 170 | VAR_DECL, FUNCTION_DECL, CONSTRUCTOR, ADDR_EXPR |
a5f99f01 RK |
171 | TREE_NO_UNUSED_WARNING in |
172 | CONVERT_EXPR, NOP_EXPR, COMPOUND_EXPR | |
173 | TREE_VIA_VIRTUAL in | |
174 | TREE_LIST or TREE_VEC | |
175 | TREE_CONSTANT_OVERFLOW in | |
176 | INTEGER_CST, REAL_CST, COMPLEX_CST | |
177 | TREE_SYMBOL_REFERENCED in | |
178 | IDENTIFIER_NODE | |
179 | ||
180 | public_flag: | |
181 | ||
182 | TREE_OVERFLOW in | |
183 | INTEGER_CST, REAL_CST, COMPLEX_CST | |
184 | TREE_PUBLIC in | |
185 | VAR_DECL or FUNCTION_DECL | |
186 | TREE_VIA_PUBLIC in | |
187 | TREE_LIST or TREE_VEC | |
dadafe54 PB |
188 | EXPR_WFL_EMIT_LINE_NOTE in |
189 | EXPR_WITH_FILE_LOCATION | |
a5f99f01 RK |
190 | |
191 | private_flag: | |
192 | ||
193 | TREE_VIA_PRIVATE in | |
194 | TREE_LIST or TREE_VEC | |
195 | TREE_PRIVATE in | |
196 | ??? unspecified nodes | |
197 | ||
198 | protected_flag: | |
199 | ||
200 | TREE_VIA_PROTECTED in | |
201 | TREE_LIST | |
202 | TREE_PROTECTED in | |
203 | BLOCK | |
204 | ??? unspecified nodes | |
205 | ||
206 | side_effects_flag: | |
207 | ||
208 | TREE_SIDE_EFFECTS in | |
209 | all expressions | |
210 | ||
211 | volatile_flag: | |
212 | ||
213 | TREE_THIS_VOLATILE in | |
214 | all expressions | |
215 | TYPE_VOLATILE in | |
216 | ..._TYPE | |
217 | ||
218 | readonly_flag: | |
219 | ||
220 | TREE_READONLY in | |
e5e809f4 | 221 | all expressions |
a5f99f01 RK |
222 | ITERATOR_BOUND_P in |
223 | VAR_DECL if iterator (C) | |
224 | TYPE_READONLY in | |
225 | ..._TYPE | |
226 | ||
227 | constant_flag: | |
228 | ||
229 | TREE_CONSTANT in | |
230 | all expressions | |
231 | ||
232 | permanent_flag: TREE_PERMANENT in all nodes | |
233 | ||
234 | unsigned_flag: | |
235 | ||
236 | TREE_UNSIGNED in | |
237 | INTEGER_TYPE, ENUMERAL_TYPE, FIELD_DECL | |
a5f99f01 RK |
238 | DECL_BUILT_IN_NONANSI in |
239 | FUNCTION_DECL | |
240 | TREE_PARMLIST in | |
241 | TREE_PARMLIST (C++) | |
e9a25f70 JL |
242 | SAVE_EXPR_NOPLACEHOLDER in |
243 | SAVE_EXPR | |
a5f99f01 RK |
244 | |
245 | asm_written_flag: | |
246 | ||
247 | TREE_ASM_WRITTEN in | |
248 | VAR_DECL, FUNCTION_DECL, RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE | |
249 | BLOCK | |
250 | ||
251 | used_flag: | |
252 | ||
253 | TREE_USED in | |
254 | expressions, IDENTIFIER_NODE | |
255 | ||
12a22e76 | 256 | nothrow_flag: |
a5f99f01 | 257 | |
12a22e76 JM |
258 | TREE_NOTHROW in |
259 | CALL_EXPR, FUNCTION_DECL | |
a5f99f01 RK |
260 | |
261 | */ | |
8da1b058 RS |
262 | /* Define accessors for the fields that all tree nodes have |
263 | (though some fields are not used for all kinds of nodes). */ | |
264 | ||
265 | /* The tree-code says what kind of node it is. | |
266 | Codes are defined in tree.def. */ | |
267 | #define TREE_CODE(NODE) ((enum tree_code) (NODE)->common.code) | |
268 | #define TREE_SET_CODE(NODE, VALUE) ((NODE)->common.code = (int) (VALUE)) | |
269 | ||
12b195d9 | 270 | /* When checking is enabled, errors will be generated if a tree node |
8f985ec4 | 271 | is accessed incorrectly. The macros abort with a fatal error. */ |
f4524c9e | 272 | #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007) |
12b195d9 | 273 | |
8f985ec4 ZW |
274 | #define TREE_CHECK(t, code) \ |
275 | ({ const tree __t = t; \ | |
276 | if (TREE_CODE(__t) != (code)) \ | |
277 | tree_check_failed (__t, code, __FILE__, \ | |
278 | __LINE__, __PRETTY_FUNCTION__); \ | |
279 | __t; }) | |
280 | #define TREE_CLASS_CHECK(t, class) \ | |
281 | ({ const tree __t = t; \ | |
282 | if (TREE_CODE_CLASS(TREE_CODE(__t)) != (class)) \ | |
283 | tree_class_check_failed (__t, class, __FILE__, \ | |
284 | __LINE__, __PRETTY_FUNCTION__); \ | |
285 | __t; }) | |
286 | ||
287 | /* These checks have to be special cased. */ | |
288 | #define CST_OR_CONSTRUCTOR_CHECK(t) \ | |
289 | ({ const tree __t = t; \ | |
290 | enum tree_code __c = TREE_CODE(__t); \ | |
291 | if (__c != CONSTRUCTOR && TREE_CODE_CLASS(__c) != 'c') \ | |
292 | tree_check_failed (__t, CONSTRUCTOR, __FILE__, \ | |
293 | __LINE__, __PRETTY_FUNCTION__); \ | |
294 | __t; }) | |
295 | #define EXPR_CHECK(t) \ | |
296 | ({ const tree __t = t; \ | |
297 | char __c = TREE_CODE_CLASS(TREE_CODE(__t)); \ | |
298 | if (__c != 'r' && __c != 's' && __c != '<' \ | |
299 | && __c != '1' && __c != '2' && __c != 'e') \ | |
300 | tree_class_check_failed(__t, 'e', __FILE__, \ | |
301 | __LINE__, __PRETTY_FUNCTION__); \ | |
302 | __t; }) | |
303 | ||
58782098 | 304 | extern void tree_check_failed PARAMS ((const tree, enum tree_code, |
8f985ec4 ZW |
305 | const char *, int, const char *)) |
306 | ATTRIBUTE_NORETURN; | |
58782098 | 307 | extern void tree_class_check_failed PARAMS ((const tree, char, |
8f985ec4 ZW |
308 | const char *, int, const char *)) |
309 | ATTRIBUTE_NORETURN; | |
310 | ||
f4524c9e | 311 | #else /* not ENABLE_TREE_CHECKING, or not gcc */ |
12b195d9 | 312 | |
8f985ec4 ZW |
313 | #define TREE_CHECK(t, code) (t) |
314 | #define TREE_CLASS_CHECK(t, code) (t) | |
315 | #define CST_OR_CONSTRUCTOR_CHECK(t) (t) | |
316 | #define EXPR_CHECK(t) (t) | |
317 | ||
318 | #endif | |
319 | ||
320 | #include "tree-check.h" | |
321 | ||
322 | #define TYPE_CHECK(tree) TREE_CLASS_CHECK (tree, 't') | |
323 | #define DECL_CHECK(tree) TREE_CLASS_CHECK (tree, 'd') | |
324 | #define CST_CHECK(tree) TREE_CLASS_CHECK (tree, 'c') | |
12b195d9 | 325 | |
8da1b058 RS |
326 | /* In all nodes that are expressions, this is the data type of the expression. |
327 | In POINTER_TYPE nodes, this is the type that the pointer points to. | |
328 | In ARRAY_TYPE nodes, this is the type of the elements. */ | |
329 | #define TREE_TYPE(NODE) ((NODE)->common.type) | |
330 | ||
331 | /* Nodes are chained together for many purposes. | |
332 | Types are chained together to record them for being output to the debugger | |
333 | (see the function `chain_type'). | |
334 | Decls in the same scope are chained together to record the contents | |
335 | of the scope. | |
336 | Statement nodes for successive statements used to be chained together. | |
337 | Often lists of things are represented by TREE_LIST nodes that | |
338 | are chained together. */ | |
339 | ||
340 | #define TREE_CHAIN(NODE) ((NODE)->common.chain) | |
341 | ||
342 | /* Given an expression as a tree, strip any NON_LVALUE_EXPRs and NOP_EXPRs | |
343 | that don't change the machine mode. */ | |
344 | ||
345 | #define STRIP_NOPS(EXP) \ | |
346 | while ((TREE_CODE (EXP) == NOP_EXPR \ | |
347 | || TREE_CODE (EXP) == CONVERT_EXPR \ | |
348 | || TREE_CODE (EXP) == NON_LVALUE_EXPR) \ | |
349 | && (TYPE_MODE (TREE_TYPE (EXP)) \ | |
350 | == TYPE_MODE (TREE_TYPE (TREE_OPERAND (EXP, 0))))) \ | |
351 | (EXP) = TREE_OPERAND (EXP, 0); | |
0fafb45e | 352 | |
14a774a9 RK |
353 | /* Like STRIP_NOPS, but don't let the signedness change either. */ |
354 | ||
355 | #define STRIP_SIGN_NOPS(EXP) \ | |
356 | while ((TREE_CODE (EXP) == NOP_EXPR \ | |
357 | || TREE_CODE (EXP) == CONVERT_EXPR \ | |
358 | || TREE_CODE (EXP) == NON_LVALUE_EXPR) \ | |
359 | && (TYPE_MODE (TREE_TYPE (EXP)) \ | |
360 | == TYPE_MODE (TREE_TYPE (TREE_OPERAND (EXP, 0)))) \ | |
361 | && (TREE_UNSIGNED (TREE_TYPE (EXP)) \ | |
362 | == TREE_UNSIGNED (TREE_TYPE (TREE_OPERAND (EXP, 0))))) \ | |
363 | (EXP) = TREE_OPERAND (EXP, 0); | |
364 | ||
0fafb45e RS |
365 | /* Like STRIP_NOPS, but don't alter the TREE_TYPE either. */ |
366 | ||
367 | #define STRIP_TYPE_NOPS(EXP) \ | |
368 | while ((TREE_CODE (EXP) == NOP_EXPR \ | |
369 | || TREE_CODE (EXP) == CONVERT_EXPR \ | |
370 | || TREE_CODE (EXP) == NON_LVALUE_EXPR) \ | |
371 | && (TREE_TYPE (EXP) \ | |
372 | == TREE_TYPE (TREE_OPERAND (EXP, 0)))) \ | |
373 | (EXP) = TREE_OPERAND (EXP, 0); | |
87291138 RK |
374 | |
375 | /* Nonzero if TYPE represents an integral type. Note that we do not | |
376 | include COMPLEX types here. */ | |
377 | ||
378 | #define INTEGRAL_TYPE_P(TYPE) \ | |
379 | (TREE_CODE (TYPE) == INTEGER_TYPE || TREE_CODE (TYPE) == ENUMERAL_TYPE \ | |
380 | || TREE_CODE (TYPE) == BOOLEAN_TYPE || TREE_CODE (TYPE) == CHAR_TYPE) | |
381 | ||
382 | /* Nonzero if TYPE represents a floating-point type, including complex | |
383 | floating-point types. */ | |
384 | ||
385 | #define FLOAT_TYPE_P(TYPE) \ | |
386 | (TREE_CODE (TYPE) == REAL_TYPE \ | |
387 | || (TREE_CODE (TYPE) == COMPLEX_TYPE \ | |
388 | && TREE_CODE (TREE_TYPE (TYPE)) == REAL_TYPE)) | |
947765f9 PB |
389 | |
390 | /* Nonzero if TYPE represents an aggregate (multi-component) type. */ | |
391 | ||
392 | #define AGGREGATE_TYPE_P(TYPE) \ | |
393 | (TREE_CODE (TYPE) == ARRAY_TYPE || TREE_CODE (TYPE) == RECORD_TYPE \ | |
394 | || TREE_CODE (TYPE) == UNION_TYPE || TREE_CODE (TYPE) == QUAL_UNION_TYPE \ | |
395 | || TREE_CODE (TYPE) == SET_TYPE) | |
9e6cfc43 JM |
396 | |
397 | /* Nonzero if TYPE represents a pointer type. */ | |
398 | ||
399 | #define POINTER_TYPE_P(TYPE) \ | |
400 | (TREE_CODE (TYPE) == POINTER_TYPE || TREE_CODE (TYPE) == REFERENCE_TYPE) | |
555f90c5 | 401 | |
d0f062fb NS |
402 | /* Nonzero if this type is a complete type. */ |
403 | #define COMPLETE_TYPE_P(NODE) (TYPE_SIZE (NODE) != NULL_TREE) | |
404 | ||
405 | /* Nonzero if this type is complete or is cv void. */ | |
406 | #define COMPLETE_OR_VOID_TYPE_P(NODE) \ | |
407 | (COMPLETE_TYPE_P (NODE) || TREE_CODE (NODE) == VOID_TYPE) | |
408 | ||
409 | /* Nonzero if this type is complete or is an array with unspecified bound. */ | |
410 | #define COMPLETE_OR_UNBOUND_ARRAY_TYPE_P(NODE) \ | |
411 | (COMPLETE_TYPE_P (TREE_CODE (NODE) == ARRAY_TYPE ? TREE_TYPE (NODE) : NODE)) | |
412 | ||
555f90c5 JM |
413 | /* Nonzero if TYPE represents a type. */ |
414 | ||
415 | #define TYPE_P(TYPE) (TREE_CODE_CLASS (TREE_CODE (TYPE)) == 't') | |
8da1b058 RS |
416 | \f |
417 | /* Define many boolean fields that all tree nodes have. */ | |
418 | ||
419 | /* In VAR_DECL nodes, nonzero means address of this is needed. | |
420 | So it cannot be in a register. | |
421 | In a FUNCTION_DECL, nonzero means its address is needed. | |
422 | So it must be compiled even if it is an inline function. | |
423 | In CONSTRUCTOR nodes, it means object constructed must be in memory. | |
424 | In LABEL_DECL nodes, it means a goto for this label has been seen | |
425 | from a place outside all binding contours that restore stack levels. | |
426 | In ..._TYPE nodes, it means that objects of this type must | |
427 | be fully addressable. This means that pieces of this | |
428 | object cannot go into register parameters, for example. | |
429 | In IDENTIFIER_NODEs, this means that some extern decl for this name | |
430 | had its address taken. That matters for inline functions. */ | |
431 | #define TREE_ADDRESSABLE(NODE) ((NODE)->common.addressable_flag) | |
432 | ||
433 | /* In a VAR_DECL, nonzero means allocate static storage. | |
9f86614b | 434 | In a FUNCTION_DECL, nonzero if function has been defined. |
8da1b058 RS |
435 | In a CONSTRUCTOR, nonzero means allocate static storage. */ |
436 | #define TREE_STATIC(NODE) ((NODE)->common.static_flag) | |
437 | ||
248c0f74 JM |
438 | /* In a CONVERT_EXPR, NOP_EXPR or COMPOUND_EXPR, this means the node was |
439 | made implicitly and should not lead to an "unused value" warning. */ | |
8da1b058 RS |
440 | #define TREE_NO_UNUSED_WARNING(NODE) ((NODE)->common.static_flag) |
441 | ||
442 | /* Nonzero for a TREE_LIST or TREE_VEC node means that the derivation | |
443 | chain is via a `virtual' declaration. */ | |
444 | #define TREE_VIA_VIRTUAL(NODE) ((NODE)->common.static_flag) | |
445 | ||
ae202b56 RK |
446 | /* In an INTEGER_CST, REAL_CST, or COMPLEX_CST, this means there was an |
447 | overflow in folding. This is distinct from TREE_OVERFLOW because ANSI C | |
448 | requires a diagnostic when overflows occur in constant expressions. */ | |
261450e8 PE |
449 | #define TREE_CONSTANT_OVERFLOW(NODE) ((NODE)->common.static_flag) |
450 | ||
d3568529 JM |
451 | /* In an IDENTIFIER_NODE, this means that assemble_name was called with |
452 | this string as an argument. */ | |
453 | #define TREE_SYMBOL_REFERENCED(NODE) ((NODE)->common.static_flag) | |
454 | ||
ae202b56 RK |
455 | /* In an INTEGER_CST, REAL_CST, of COMPLEX_CST, this means there was an |
456 | overflow in folding, and no warning has been issued for this subexpression. | |
261450e8 PE |
457 | TREE_OVERFLOW implies TREE_CONSTANT_OVERFLOW, but not vice versa. */ |
458 | #define TREE_OVERFLOW(NODE) ((NODE)->common.public_flag) | |
459 | ||
8da1b058 RS |
460 | /* In a VAR_DECL or FUNCTION_DECL, |
461 | nonzero means name is to be accessible from outside this module. | |
858a47b1 | 462 | In an identifier node, nonzero means an external declaration |
6dc42e49 | 463 | accessible from outside this module was previously seen |
8da1b058 RS |
464 | for this name in an inner scope. */ |
465 | #define TREE_PUBLIC(NODE) ((NODE)->common.public_flag) | |
466 | ||
467 | /* Nonzero for TREE_LIST or TREE_VEC node means that the path to the | |
468 | base class is via a `public' declaration, which preserves public | |
469 | fields from the base class as public. */ | |
470 | #define TREE_VIA_PUBLIC(NODE) ((NODE)->common.public_flag) | |
471 | ||
9e5386db MS |
472 | /* Ditto, for `private' declarations. */ |
473 | #define TREE_VIA_PRIVATE(NODE) ((NODE)->common.private_flag) | |
474 | ||
475 | /* Nonzero for TREE_LIST node means that the path to the | |
476 | base class is via a `protected' declaration, which preserves | |
477 | protected fields from the base class as protected. | |
478 | OVERLOADED. */ | |
026380ff | 479 | #define TREE_VIA_PROTECTED(NODE) ((NODE)->common.protected_flag) |
9e5386db | 480 | |
8da1b058 RS |
481 | /* In any expression, nonzero means it has side effects or reevaluation |
482 | of the whole expression could produce a different value. | |
483 | This is set if any subexpression is a function call, a side effect | |
484 | or a reference to a volatile variable. | |
485 | In a ..._DECL, this is set only if the declaration said `volatile'. */ | |
486 | #define TREE_SIDE_EFFECTS(NODE) ((NODE)->common.side_effects_flag) | |
487 | ||
488 | /* Nonzero means this expression is volatile in the C sense: | |
489 | its address should be of type `volatile WHATEVER *'. | |
490 | In other words, the declared item is volatile qualified. | |
491 | This is used in _DECL nodes and _REF nodes. | |
492 | ||
493 | In a ..._TYPE node, means this type is volatile-qualified. | |
494 | But use TYPE_VOLATILE instead of this macro when the node is a type, | |
495 | because eventually we may make that a different bit. | |
496 | ||
497 | If this bit is set in an expression, so is TREE_SIDE_EFFECTS. */ | |
498 | #define TREE_THIS_VOLATILE(NODE) ((NODE)->common.volatile_flag) | |
499 | ||
500 | /* In a VAR_DECL, PARM_DECL or FIELD_DECL, or any kind of ..._REF node, | |
501 | nonzero means it may not be the lhs of an assignment. | |
502 | In a ..._TYPE node, means this type is const-qualified | |
503 | (but the macro TYPE_READONLY should be used instead of this macro | |
504 | when the node is a type). */ | |
505 | #define TREE_READONLY(NODE) ((NODE)->common.readonly_flag) | |
506 | ||
507 | /* Value of expression is constant. | |
508 | Always appears in all ..._CST nodes. | |
509 | May also appear in an arithmetic expression, an ADDR_EXPR or a CONSTRUCTOR | |
510 | if the value is constant. */ | |
511 | #define TREE_CONSTANT(NODE) ((NODE)->common.constant_flag) | |
512 | ||
513 | /* Nonzero means permanent node; | |
514 | node will continue to exist for the entire compiler run. | |
23dfa477 ZW |
515 | Otherwise it will be recycled at the end of the function. |
516 | This flag is always zero if garbage collection is in use. | |
517 | Try not to use this. Only set it with TREE_SET_PERMANENT. */ | |
8da1b058 | 518 | #define TREE_PERMANENT(NODE) ((NODE)->common.permanent_flag) |
23dfa477 ZW |
519 | #define TREE_SET_PERMANENT(NODE) do { \ |
520 | if (!ggc_p && current_obstack == &permanent_obstack) \ | |
521 | TREE_PERMANENT(NODE) = 1; \ | |
522 | } while (0) | |
8da1b058 RS |
523 | |
524 | /* In INTEGER_TYPE or ENUMERAL_TYPE nodes, means an unsigned type. | |
525 | In FIELD_DECL nodes, means an unsigned bit field. | |
526 | The same bit is used in functions as DECL_BUILT_IN_NONANSI. */ | |
527 | #define TREE_UNSIGNED(NODE) ((NODE)->common.unsigned_flag) | |
528 | ||
529 | /* Nonzero in a VAR_DECL means assembler code has been written. | |
530 | Nonzero in a FUNCTION_DECL means that the function has been compiled. | |
531 | This is interesting in an inline function, since it might not need | |
532 | to be compiled separately. | |
3635a54b | 533 | Nonzero in a RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE or ENUMERAL_TYPE |
9f86614b RS |
534 | if the sdb debugging info for the type has been written. |
535 | In a BLOCK node, nonzero if reorder_blocks has already seen this block. */ | |
8da1b058 RS |
536 | #define TREE_ASM_WRITTEN(NODE) ((NODE)->common.asm_written_flag) |
537 | ||
538 | /* Nonzero in a _DECL if the name is used in its scope. | |
539 | Nonzero in an expr node means inhibit warning if value is unused. | |
540 | In IDENTIFIER_NODEs, this means that some extern decl for this name | |
541 | was used. */ | |
542 | #define TREE_USED(NODE) ((NODE)->common.used_flag) | |
543 | ||
12a22e76 JM |
544 | /* In a FUNCTION_DECL, nonzero means a call to the function cannot throw |
545 | an exception. In a CALL_EXPR, nonzero means the call cannot throw. */ | |
546 | #define TREE_NOTHROW(NODE) ((NODE)->common.nothrow_flag) | |
8da1b058 | 547 | |
9f86614b | 548 | /* Used in classes in C++. */ |
8da1b058 | 549 | #define TREE_PRIVATE(NODE) ((NODE)->common.private_flag) |
9f86614b RS |
550 | /* Used in classes in C++. |
551 | In a BLOCK node, this is BLOCK_HANDLER_BLOCK. */ | |
8da1b058 RS |
552 | #define TREE_PROTECTED(NODE) ((NODE)->common.protected_flag) |
553 | ||
9f86614b | 554 | /* These flags are available for each language front end to use internally. */ |
8da1b058 RS |
555 | #define TREE_LANG_FLAG_0(NODE) ((NODE)->common.lang_flag_0) |
556 | #define TREE_LANG_FLAG_1(NODE) ((NODE)->common.lang_flag_1) | |
557 | #define TREE_LANG_FLAG_2(NODE) ((NODE)->common.lang_flag_2) | |
558 | #define TREE_LANG_FLAG_3(NODE) ((NODE)->common.lang_flag_3) | |
559 | #define TREE_LANG_FLAG_4(NODE) ((NODE)->common.lang_flag_4) | |
560 | #define TREE_LANG_FLAG_5(NODE) ((NODE)->common.lang_flag_5) | |
561 | #define TREE_LANG_FLAG_6(NODE) ((NODE)->common.lang_flag_6) | |
562 | \f | |
563 | /* Define additional fields and accessors for nodes representing constants. */ | |
564 | ||
e5d70561 RK |
565 | /* In an INTEGER_CST node. These two together make a 2-word integer. |
566 | If the data type is signed, the value is sign-extended to 2 words | |
8da1b058 | 567 | even though not all of them may really be in use. |
e5d70561 | 568 | In an unsigned constant shorter than 2 words, the extra bits are 0. */ |
12b195d9 ML |
569 | #define TREE_INT_CST_LOW(NODE) (INTEGER_CST_CHECK (NODE)->int_cst.int_cst_low) |
570 | #define TREE_INT_CST_HIGH(NODE) (INTEGER_CST_CHECK (NODE)->int_cst.int_cst_high) | |
8da1b058 RS |
571 | |
572 | #define INT_CST_LT(A, B) \ | |
573 | (TREE_INT_CST_HIGH (A) < TREE_INT_CST_HIGH (B) \ | |
574 | || (TREE_INT_CST_HIGH (A) == TREE_INT_CST_HIGH (B) \ | |
05bccae2 | 575 | && TREE_INT_CST_LOW (A) < TREE_INT_CST_LOW (B))) |
8da1b058 RS |
576 | |
577 | #define INT_CST_LT_UNSIGNED(A, B) \ | |
e5d70561 RK |
578 | (((unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (A) \ |
579 | < (unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (B)) \ | |
580 | || (((unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (A) \ | |
05bccae2 RK |
581 | == (unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (B)) \ |
582 | && TREE_INT_CST_LOW (A) < TREE_INT_CST_LOW (B))) | |
8da1b058 RS |
583 | |
584 | struct tree_int_cst | |
585 | { | |
586 | char common[sizeof (struct tree_common)]; | |
8e15f736 RK |
587 | struct rtx_def *rtl; /* acts as link to register transfer language |
588 | (rtl) info */ | |
05bccae2 | 589 | unsigned HOST_WIDE_INT int_cst_low; |
e5d70561 | 590 | HOST_WIDE_INT int_cst_high; |
8da1b058 RS |
591 | }; |
592 | ||
593 | /* In REAL_CST, STRING_CST, COMPLEX_CST nodes, and CONSTRUCTOR nodes, | |
594 | and generally in all kinds of constants that could | |
595 | be given labels (rather than being immediate). */ | |
596 | ||
12b195d9 | 597 | #define TREE_CST_RTL(NODE) (CST_OR_CONSTRUCTOR_CHECK (NODE)->real_cst.rtl) |
8da1b058 RS |
598 | |
599 | /* In a REAL_CST node. */ | |
600 | /* We can represent a real value as either a `double' or a string. | |
601 | Strings don't allow for any optimization, but they do allow | |
602 | for cross-compilation. */ | |
603 | ||
12b195d9 | 604 | #define TREE_REAL_CST(NODE) (REAL_CST_CHECK (NODE)->real_cst.real_cst) |
8da1b058 RS |
605 | |
606 | #include "real.h" | |
607 | ||
608 | struct tree_real_cst | |
609 | { | |
610 | char common[sizeof (struct tree_common)]; | |
611 | struct rtx_def *rtl; /* acts as link to register transfer language | |
612 | (rtl) info */ | |
613 | REAL_VALUE_TYPE real_cst; | |
614 | }; | |
615 | ||
616 | /* In a STRING_CST */ | |
12b195d9 ML |
617 | #define TREE_STRING_LENGTH(NODE) (STRING_CST_CHECK (NODE)->string.length) |
618 | #define TREE_STRING_POINTER(NODE) (STRING_CST_CHECK (NODE)->string.pointer) | |
8da1b058 RS |
619 | |
620 | struct tree_string | |
621 | { | |
622 | char common[sizeof (struct tree_common)]; | |
623 | struct rtx_def *rtl; /* acts as link to register transfer language | |
624 | (rtl) info */ | |
625 | int length; | |
626 | char *pointer; | |
627 | }; | |
628 | ||
629 | /* In a COMPLEX_CST node. */ | |
12b195d9 ML |
630 | #define TREE_REALPART(NODE) (COMPLEX_CST_CHECK (NODE)->complex.real) |
631 | #define TREE_IMAGPART(NODE) (COMPLEX_CST_CHECK (NODE)->complex.imag) | |
8da1b058 RS |
632 | |
633 | struct tree_complex | |
634 | { | |
635 | char common[sizeof (struct tree_common)]; | |
636 | struct rtx_def *rtl; /* acts as link to register transfer language | |
637 | (rtl) info */ | |
638 | union tree_node *real; | |
639 | union tree_node *imag; | |
640 | }; | |
641 | \f | |
642 | /* Define fields and accessors for some special-purpose tree nodes. */ | |
643 | ||
12b195d9 ML |
644 | #define IDENTIFIER_LENGTH(NODE) (IDENTIFIER_NODE_CHECK (NODE)->identifier.length) |
645 | #define IDENTIFIER_POINTER(NODE) (IDENTIFIER_NODE_CHECK (NODE)->identifier.pointer) | |
8da1b058 RS |
646 | |
647 | struct tree_identifier | |
648 | { | |
649 | char common[sizeof (struct tree_common)]; | |
650 | int length; | |
651 | char *pointer; | |
652 | }; | |
653 | ||
654 | /* In a TREE_LIST node. */ | |
12b195d9 ML |
655 | #define TREE_PURPOSE(NODE) (TREE_LIST_CHECK (NODE)->list.purpose) |
656 | #define TREE_VALUE(NODE) (TREE_LIST_CHECK (NODE)->list.value) | |
8da1b058 RS |
657 | |
658 | struct tree_list | |
659 | { | |
660 | char common[sizeof (struct tree_common)]; | |
661 | union tree_node *purpose; | |
662 | union tree_node *value; | |
663 | }; | |
664 | ||
665 | /* In a TREE_VEC node. */ | |
12b195d9 ML |
666 | #define TREE_VEC_LENGTH(NODE) (TREE_VEC_CHECK (NODE)->vec.length) |
667 | #define TREE_VEC_ELT(NODE,I) (TREE_VEC_CHECK (NODE)->vec.a[I]) | |
52267fcb | 668 | #define TREE_VEC_END(NODE) ((void) TREE_VEC_CHECK (NODE),&((NODE)->vec.a[(NODE)->vec.length])) |
8da1b058 RS |
669 | |
670 | struct tree_vec | |
671 | { | |
672 | char common[sizeof (struct tree_common)]; | |
673 | int length; | |
674 | union tree_node *a[1]; | |
675 | }; | |
676 | ||
677 | /* Define fields and accessors for some nodes that represent expressions. */ | |
678 | ||
679 | /* In a SAVE_EXPR node. */ | |
680 | #define SAVE_EXPR_CONTEXT(NODE) TREE_OPERAND(NODE, 1) | |
12b195d9 | 681 | #define SAVE_EXPR_RTL(NODE) (*(struct rtx_def **) &EXPR_CHECK (NODE)->exp.operands[2]) |
e9a25f70 | 682 | #define SAVE_EXPR_NOPLACEHOLDER(NODE) TREE_UNSIGNED (NODE) |
d26f8097 MM |
683 | /* Nonzero if the SAVE_EXPRs value should be kept, even if it occurs |
684 | both in normal code and in a handler. (Normally, in a handler, all | |
685 | SAVE_EXPRs are unsaved, meaning that there values are | |
686 | recalculated.) */ | |
687 | #define SAVE_EXPR_PERSISTENT_P(NODE) TREE_ASM_WRITTEN (NODE) | |
8da1b058 RS |
688 | |
689 | /* In a RTL_EXPR node. */ | |
12b195d9 ML |
690 | #define RTL_EXPR_SEQUENCE(NODE) (*(struct rtx_def **) &EXPR_CHECK (NODE)->exp.operands[0]) |
691 | #define RTL_EXPR_RTL(NODE) (*(struct rtx_def **) &EXPR_CHECK (NODE)->exp.operands[1]) | |
8da1b058 RS |
692 | |
693 | /* In a CALL_EXPR node. */ | |
12b195d9 | 694 | #define CALL_EXPR_RTL(NODE) (*(struct rtx_def **) &EXPR_CHECK (NODE)->exp.operands[2]) |
8da1b058 RS |
695 | |
696 | /* In a CONSTRUCTOR node. */ | |
697 | #define CONSTRUCTOR_ELTS(NODE) TREE_OPERAND (NODE, 1) | |
698 | ||
61131fa2 | 699 | /* In ordinary expression nodes. */ |
12b195d9 ML |
700 | #define TREE_OPERAND(NODE, I) (EXPR_CHECK (NODE)->exp.operands[I]) |
701 | #define TREE_COMPLEXITY(NODE) (EXPR_CHECK (NODE)->exp.complexity) | |
61131fa2 | 702 | |
40edd0bd APB |
703 | /* In a LABELED_BLOCK_EXPR node. */ |
704 | #define LABELED_BLOCK_LABEL(NODE) TREE_OPERAND (NODE, 0) | |
705 | #define LABELED_BLOCK_BODY(NODE) TREE_OPERAND (NODE, 1) | |
706 | ||
707 | /* In a EXIT_BLOCK_EXPR node. */ | |
708 | #define EXIT_BLOCK_LABELED_BLOCK(NODE) TREE_OPERAND (NODE, 0) | |
709 | #define EXIT_BLOCK_RETURN(NODE) TREE_OPERAND (NODE, 1) | |
710 | ||
711 | /* In a LOOP_EXPR node. */ | |
712 | #define LOOP_EXPR_BODY(NODE) TREE_OPERAND (NODE, 0) | |
713 | ||
dadafe54 | 714 | /* In a EXPR_WITH_FILE_LOCATION node. */ |
bf1e5319 | 715 | #define EXPR_WFL_NODE(NODE) TREE_OPERAND((NODE), 0) |
86fff623 MM |
716 | #define EXPR_WFL_FILENAME(NODE) \ |
717 | (IDENTIFIER_POINTER (EXPR_WFL_FILENAME_NODE ((NODE)))) | |
718 | #define EXPR_WFL_FILENAME_NODE(NODE) TREE_OPERAND((NODE), 1) | |
12b195d9 ML |
719 | #define EXPR_WFL_LINENO(NODE) (EXPR_CHECK (NODE)->exp.complexity >> 12) |
720 | #define EXPR_WFL_COLNO(NODE) (EXPR_CHECK (NODE)->exp.complexity & 0xfff) | |
721 | #define EXPR_WFL_LINECOL(NODE) (EXPR_CHECK (NODE)->exp.complexity) | |
bf1e5319 APB |
722 | #define EXPR_WFL_SET_LINECOL(NODE, LINE, COL) \ |
723 | (EXPR_WFL_LINECOL(NODE) = ((LINE) << 12) | ((COL) & 0xfff)) | |
dadafe54 | 724 | #define EXPR_WFL_EMIT_LINE_NOTE(NODE) ((NODE)->common.public_flag) |
bf1e5319 | 725 | |
61131fa2 RS |
726 | struct tree_exp |
727 | { | |
728 | char common[sizeof (struct tree_common)]; | |
729 | int complexity; | |
730 | union tree_node *operands[1]; | |
731 | }; | |
732 | \f | |
8da1b058 | 733 | /* In a BLOCK node. */ |
12b195d9 | 734 | #define BLOCK_VARS(NODE) (BLOCK_CHECK (NODE)->block.vars) |
12b195d9 ML |
735 | #define BLOCK_SUBBLOCKS(NODE) (BLOCK_CHECK (NODE)->block.subblocks) |
736 | #define BLOCK_SUPERCONTEXT(NODE) (BLOCK_CHECK (NODE)->block.supercontext) | |
8da1b058 RS |
737 | /* Note: when changing this, make sure to find the places |
738 | that use chainon or nreverse. */ | |
739 | #define BLOCK_CHAIN(NODE) TREE_CHAIN (NODE) | |
12b195d9 ML |
740 | #define BLOCK_ABSTRACT_ORIGIN(NODE) (BLOCK_CHECK (NODE)->block.abstract_origin) |
741 | #define BLOCK_ABSTRACT(NODE) (BLOCK_CHECK (NODE)->block.abstract_flag) | |
8da1b058 RS |
742 | |
743 | /* Nonzero means that this block is prepared to handle exceptions | |
744 | listed in the BLOCK_VARS slot. */ | |
12b195d9 | 745 | #define BLOCK_HANDLER_BLOCK(NODE) (BLOCK_CHECK (NODE)->block.handler_block_flag) |
8da1b058 | 746 | |
18c038b9 MM |
747 | /* An index number for this block. These values are not guaranteed to |
748 | be unique across functions -- whether or not they are depends on | |
749 | the debugging output format in use. */ | |
750 | #define BLOCK_NUMBER(NODE) (BLOCK_CHECK (NODE)->block.block_num) | |
751 | ||
61131fa2 | 752 | struct tree_block |
8da1b058 RS |
753 | { |
754 | char common[sizeof (struct tree_common)]; | |
61131fa2 RS |
755 | |
756 | unsigned handler_block_flag : 1; | |
757 | unsigned abstract_flag : 1; | |
18c038b9 | 758 | unsigned block_num : 30; |
61131fa2 RS |
759 | |
760 | union tree_node *vars; | |
61131fa2 RS |
761 | union tree_node *subblocks; |
762 | union tree_node *supercontext; | |
763 | union tree_node *abstract_origin; | |
8da1b058 RS |
764 | }; |
765 | \f | |
766 | /* Define fields and accessors for nodes representing data types. */ | |
767 | ||
768 | /* See tree.def for documentation of the use of these fields. | |
769 | Look at the documentation of the various ..._TYPE tree codes. */ | |
770 | ||
12b195d9 ML |
771 | #define TYPE_UID(NODE) (TYPE_CHECK (NODE)->type.uid) |
772 | #define TYPE_SIZE(NODE) (TYPE_CHECK (NODE)->type.size) | |
773 | #define TYPE_SIZE_UNIT(NODE) (TYPE_CHECK (NODE)->type.size_unit) | |
774 | #define TYPE_MODE(NODE) (TYPE_CHECK (NODE)->type.mode) | |
775 | #define TYPE_VALUES(NODE) (TYPE_CHECK (NODE)->type.values) | |
776 | #define TYPE_DOMAIN(NODE) (TYPE_CHECK (NODE)->type.values) | |
777 | #define TYPE_FIELDS(NODE) (TYPE_CHECK (NODE)->type.values) | |
778 | #define TYPE_METHODS(NODE) (TYPE_CHECK (NODE)->type.maxval) | |
779 | #define TYPE_VFIELD(NODE) (TYPE_CHECK (NODE)->type.minval) | |
780 | #define TYPE_ARG_TYPES(NODE) (TYPE_CHECK (NODE)->type.values) | |
781 | #define TYPE_METHOD_BASETYPE(NODE) (TYPE_CHECK (NODE)->type.maxval) | |
782 | #define TYPE_OFFSET_BASETYPE(NODE) (TYPE_CHECK (NODE)->type.maxval) | |
783 | #define TYPE_POINTER_TO(NODE) (TYPE_CHECK (NODE)->type.pointer_to) | |
784 | #define TYPE_REFERENCE_TO(NODE) (TYPE_CHECK (NODE)->type.reference_to) | |
785 | #define TYPE_MIN_VALUE(NODE) (TYPE_CHECK (NODE)->type.minval) | |
786 | #define TYPE_MAX_VALUE(NODE) (TYPE_CHECK (NODE)->type.maxval) | |
787 | #define TYPE_PRECISION(NODE) (TYPE_CHECK (NODE)->type.precision) | |
788 | #define TYPE_SYMTAB_ADDRESS(NODE) (TYPE_CHECK (NODE)->type.symtab.address) | |
789 | #define TYPE_SYMTAB_POINTER(NODE) (TYPE_CHECK (NODE)->type.symtab.pointer) | |
790 | #define TYPE_NAME(NODE) (TYPE_CHECK (NODE)->type.name) | |
791 | #define TYPE_NEXT_VARIANT(NODE) (TYPE_CHECK (NODE)->type.next_variant) | |
792 | #define TYPE_MAIN_VARIANT(NODE) (TYPE_CHECK (NODE)->type.main_variant) | |
12b195d9 ML |
793 | #define TYPE_NONCOPIED_PARTS(NODE) (TYPE_CHECK (NODE)->type.noncopied_parts) |
794 | #define TYPE_CONTEXT(NODE) (TYPE_CHECK (NODE)->type.context) | |
795 | #define TYPE_OBSTACK(NODE) (TYPE_CHECK (NODE)->type.obstack) | |
796 | #define TYPE_LANG_SPECIFIC(NODE) (TYPE_CHECK (NODE)->type.lang_specific) | |
8da1b058 | 797 | |
8ff0c1af MM |
798 | /* For aggregate types, information about this type, as a base type |
799 | for itself. Used in a language-dependent way for types that are | |
800 | neither a RECORD_TYPE, QUAL_UNION_TYPE, nor a UNION_TYPE. */ | |
801 | #define TYPE_BINFO(NODE) (TYPE_CHECK (NODE)->type.binfo) | |
802 | ||
41472af8 MM |
803 | /* The (language-specific) typed-based alias set for this type. |
804 | Objects whose TYPE_ALIAS_SETs are different cannot alias each | |
805 | other. If the TYPE_ALIAS_SET is -1, no alias set has yet been | |
806 | assigned to this type. If the TYPE_ALIAS_SET is 0, objects of this | |
807 | type can alias objects of any type. */ | |
808 | #define TYPE_ALIAS_SET(NODE) (TYPE_CHECK (NODE)->type.alias_set) | |
809 | ||
810 | /* Nonzero iff the typed-based alias set for this type has been | |
811 | calculated. */ | |
812 | #define TYPE_ALIAS_SET_KNOWN_P(NODE) \ | |
813 | (TYPE_CHECK (NODE)->type.alias_set != -1) | |
814 | ||
bad1b4ba RK |
815 | /* A TREE_LIST of IDENTIFIER nodes of the attributes that apply |
816 | to this type. */ | |
12b195d9 | 817 | #define TYPE_ATTRIBUTES(NODE) (TYPE_CHECK (NODE)->type.attributes) |
bad1b4ba | 818 | |
869637e6 RS |
819 | /* The alignment necessary for objects of this type. |
820 | The value is an int, measured in bits. */ | |
12b195d9 | 821 | #define TYPE_ALIGN(NODE) (TYPE_CHECK (NODE)->type.align) |
869637e6 | 822 | |
834c6dff MM |
823 | /* The alignment for NODE, in bytes. */ |
824 | #define TYPE_ALIGN_UNIT(NODE) \ | |
825 | (TYPE_ALIGN (NODE) / BITS_PER_UNIT) | |
826 | ||
8da1b058 RS |
827 | #define TYPE_STUB_DECL(NODE) (TREE_CHAIN (NODE)) |
828 | ||
3635a54b RK |
829 | /* In a RECORD_TYPE, UNION_TYPE or QUAL_UNION_TYPE, it means the type |
830 | has BLKmode only because it lacks the alignment requirement for | |
831 | its size. */ | |
12b195d9 | 832 | #define TYPE_NO_FORCE_BLK(NODE) (TYPE_CHECK (NODE)->type.no_force_blk_flag) |
8da1b058 | 833 | |
fed3cef0 RK |
834 | /* In an INTEGER_TYPE, it means the type represents a size. We use this |
835 | both for validity checking and to permit optimziations that are unsafe | |
836 | for other types. */ | |
837 | #define TYPE_IS_SIZETYPE(NODE) (TYPE_CHECK (NODE)->type.no_force_blk_flag) | |
838 | ||
8da1b058 RS |
839 | /* Nonzero in a type considered volatile as a whole. */ |
840 | #define TYPE_VOLATILE(NODE) ((NODE)->common.volatile_flag) | |
841 | ||
842 | /* Means this type is const-qualified. */ | |
843 | #define TYPE_READONLY(NODE) ((NODE)->common.readonly_flag) | |
844 | ||
3932261a MM |
845 | /* If nonzero, this type is `restrict'-qualified, in the C sense of |
846 | the term. */ | |
847 | #define TYPE_RESTRICT(NODE) (TYPE_CHECK (NODE)->type.restrict_flag) | |
848 | ||
849 | /* There is a TYPE_QUAL value for each type qualifier. They can be | |
850 | combined by bitwise-or to form the complete set of qualifiers for a | |
851 | type. */ | |
852 | ||
853 | #define TYPE_UNQUALIFIED 0x0 | |
854 | #define TYPE_QUAL_CONST 0x1 | |
855 | #define TYPE_QUAL_VOLATILE 0x2 | |
856 | #define TYPE_QUAL_RESTRICT 0x4 | |
857 | ||
858 | /* The set of type qualifiers for this type. */ | |
859 | #define TYPE_QUALS(NODE) \ | |
14a774a9 RK |
860 | ((TYPE_READONLY(NODE) * TYPE_QUAL_CONST) \ |
861 | | (TYPE_VOLATILE(NODE) * TYPE_QUAL_VOLATILE) \ | |
862 | | (TYPE_RESTRICT(NODE) * TYPE_QUAL_RESTRICT)) | |
3932261a | 863 | |
9f86614b | 864 | /* These flags are available for each language front end to use internally. */ |
12b195d9 ML |
865 | #define TYPE_LANG_FLAG_0(NODE) (TYPE_CHECK (NODE)->type.lang_flag_0) |
866 | #define TYPE_LANG_FLAG_1(NODE) (TYPE_CHECK (NODE)->type.lang_flag_1) | |
867 | #define TYPE_LANG_FLAG_2(NODE) (TYPE_CHECK (NODE)->type.lang_flag_2) | |
868 | #define TYPE_LANG_FLAG_3(NODE) (TYPE_CHECK (NODE)->type.lang_flag_3) | |
869 | #define TYPE_LANG_FLAG_4(NODE) (TYPE_CHECK (NODE)->type.lang_flag_4) | |
870 | #define TYPE_LANG_FLAG_5(NODE) (TYPE_CHECK (NODE)->type.lang_flag_5) | |
871 | #define TYPE_LANG_FLAG_6(NODE) (TYPE_CHECK (NODE)->type.lang_flag_6) | |
8da1b058 | 872 | |
74a3fd26 PB |
873 | /* If set in an ARRAY_TYPE, indicates a string type (for languages |
874 | that distinguish string from array of char). | |
875 | If set in a SET_TYPE, indicates a bitstring type. */ | |
12b195d9 | 876 | #define TYPE_STRING_FLAG(NODE) (TYPE_CHECK (NODE)->type.string_flag) |
74a3fd26 | 877 | |
2fb2b21c PB |
878 | /* If non-NULL, this is a upper bound of the size (in bytes) of an |
879 | object of the given ARRAY_TYPE. This allows temporaries to be allocated. */ | |
880 | #define TYPE_ARRAY_MAX_SIZE(ARRAY_TYPE) TYPE_MAX_VALUE (ARRAY_TYPE) | |
881 | ||
4ac3d994 JM |
882 | /* Indicates that objects of this type must be initialized by calling a |
883 | function when they are created. */ | |
12b195d9 | 884 | #define TYPE_NEEDS_CONSTRUCTING(NODE) (TYPE_CHECK (NODE)->type.needs_constructing_flag) |
4ac3d994 | 885 | |
adb23061 RK |
886 | /* Indicates that objects of this type (a UNION_TYPE), should be passed |
887 | the same way that the first union alternative would be passed. */ | |
12b195d9 | 888 | #define TYPE_TRANSPARENT_UNION(NODE) (TYPE_CHECK (NODE)->type.transparent_union_flag) |
adb23061 | 889 | |
956d6950 | 890 | /* Indicated that objects of this type should be laid out in as |
9e357cd8 | 891 | compact a way as possible. */ |
12b195d9 | 892 | #define TYPE_PACKED(NODE) (TYPE_CHECK (NODE)->type.packed_flag) |
9e357cd8 | 893 | |
8da1b058 RS |
894 | struct tree_type |
895 | { | |
896 | char common[sizeof (struct tree_common)]; | |
897 | union tree_node *values; | |
898 | union tree_node *size; | |
ead17059 | 899 | union tree_node *size_unit; |
bad1b4ba | 900 | union tree_node *attributes; |
b3ddc3ab | 901 | unsigned int uid; |
8da1b058 | 902 | |
b3ddc3ab | 903 | unsigned int precision : 9; |
c149cc37 | 904 | ENUM_BITFIELD(machine_mode) mode : 7; |
bad1b4ba | 905 | |
74a3fd26 | 906 | unsigned string_flag : 1; |
8da1b058 | 907 | unsigned no_force_blk_flag : 1; |
4ac3d994 | 908 | unsigned needs_constructing_flag : 1; |
adb23061 | 909 | unsigned transparent_union_flag : 1; |
9e357cd8 | 910 | unsigned packed_flag : 1; |
3932261a MM |
911 | unsigned restrict_flag : 1; |
912 | ||
8da1b058 RS |
913 | unsigned lang_flag_0 : 1; |
914 | unsigned lang_flag_1 : 1; | |
915 | unsigned lang_flag_2 : 1; | |
916 | unsigned lang_flag_3 : 1; | |
917 | unsigned lang_flag_4 : 1; | |
918 | unsigned lang_flag_5 : 1; | |
919 | unsigned lang_flag_6 : 1; | |
3932261a | 920 | /* room for 3 more bits */ |
8da1b058 | 921 | |
69b78d8d | 922 | unsigned int align; |
8da1b058 RS |
923 | union tree_node *pointer_to; |
924 | union tree_node *reference_to; | |
a0665b77 | 925 | union {int address; char *pointer; } symtab; |
8da1b058 RS |
926 | union tree_node *name; |
927 | union tree_node *minval; | |
928 | union tree_node *maxval; | |
929 | union tree_node *next_variant; | |
930 | union tree_node *main_variant; | |
931 | union tree_node *binfo; | |
932 | union tree_node *noncopied_parts; | |
933 | union tree_node *context; | |
b20e883e | 934 | struct obstack *obstack; |
41472af8 | 935 | int alias_set; |
8da1b058 RS |
936 | /* Points to a structure whose details depend on the language in use. */ |
937 | struct lang_type *lang_specific; | |
938 | }; | |
939 | \f | |
940 | /* Define accessor macros for information about type inheritance | |
941 | and basetypes. | |
942 | ||
943 | A "basetype" means a particular usage of a data type for inheritance | |
944 | in another type. Each such basetype usage has its own "binfo" | |
945 | object to describe it. The binfo object is a TREE_VEC node. | |
946 | ||
947 | Inheritance is represented by the binfo nodes allocated for a | |
948 | given type. For example, given types C and D, such that D is | |
949 | inherited by C, 3 binfo nodes will be allocated: one for describing | |
950 | the binfo properties of C, similarly one for D, and one for | |
951 | describing the binfo properties of D as a base type for C. | |
952 | Thus, given a pointer to class C, one can get a pointer to the binfo | |
953 | of D acting as a basetype for C by looking at C's binfo's basetypes. */ | |
954 | ||
955 | /* The actual data type node being inherited in this basetype. */ | |
956 | #define BINFO_TYPE(NODE) TREE_TYPE (NODE) | |
957 | ||
958 | /* The offset where this basetype appears in its containing type. | |
959 | BINFO_OFFSET slot holds the offset (in bytes) | |
960 | from the base of the complete object to the base of the part of the | |
961 | object that is allocated on behalf of this `type'. | |
962 | This is always 0 except when there is multiple inheritance. */ | |
963 | ||
964 | #define BINFO_OFFSET(NODE) TREE_VEC_ELT ((NODE), 1) | |
965 | #define TYPE_BINFO_OFFSET(NODE) BINFO_OFFSET (TYPE_BINFO (NODE)) | |
7d02bbef | 966 | #define BINFO_OFFSET_ZEROP(NODE) (integer_zerop (BINFO_OFFSET (NODE))) |
8da1b058 RS |
967 | |
968 | /* The virtual function table belonging to this basetype. Virtual | |
969 | function tables provide a mechanism for run-time method dispatching. | |
970 | The entries of a virtual function table are language-dependent. */ | |
971 | ||
972 | #define BINFO_VTABLE(NODE) TREE_VEC_ELT ((NODE), 2) | |
973 | #define TYPE_BINFO_VTABLE(NODE) BINFO_VTABLE (TYPE_BINFO (NODE)) | |
974 | ||
975 | /* The virtual functions in the virtual function table. This is | |
976 | a TREE_LIST that is used as an initial approximation for building | |
977 | a virtual function table for this basetype. */ | |
978 | #define BINFO_VIRTUALS(NODE) TREE_VEC_ELT ((NODE), 3) | |
979 | #define TYPE_BINFO_VIRTUALS(NODE) BINFO_VIRTUALS (TYPE_BINFO (NODE)) | |
980 | ||
0430641b MM |
981 | /* A vector of binfos for the direct basetypes inherited by this |
982 | basetype. | |
8da1b058 | 983 | |
0430641b MM |
984 | If this basetype describes type D as inherited in C, and if the |
985 | basetypes of D are E and F, then this vector contains binfos for | |
986 | inheritance of E and F by C. | |
8da1b058 RS |
987 | |
988 | ??? This could probably be done by just allocating the | |
989 | base types at the end of this TREE_VEC (instead of using | |
990 | another TREE_VEC). This would simplify the calculation | |
991 | of how many basetypes a given type had. */ | |
992 | #define BINFO_BASETYPES(NODE) TREE_VEC_ELT ((NODE), 4) | |
993 | #define TYPE_BINFO_BASETYPES(NODE) TREE_VEC_ELT (TYPE_BINFO (NODE), 4) | |
994 | ||
5e1677bc MM |
995 | /* The number of basetypes for NODE. */ |
996 | #define BINFO_N_BASETYPES(NODE) \ | |
997 | (BINFO_BASETYPES (NODE) ? TREE_VEC_LENGTH (BINFO_BASETYPES (NODE)) : 0) | |
998 | ||
7d02bbef JM |
999 | /* Accessor macro to get to the Nth basetype of this basetype. */ |
1000 | #define BINFO_BASETYPE(NODE,N) TREE_VEC_ELT (BINFO_BASETYPES (NODE), (N)) | |
1001 | #define TYPE_BINFO_BASETYPE(NODE,N) BINFO_TYPE (TREE_VEC_ELT (BINFO_BASETYPES (TYPE_BINFO (NODE)), (N))) | |
1002 | ||
39ac3e4f MM |
1003 | /* For a BINFO record describing a virtual base class, i.e., one where |
1004 | TREE_VIA_VIRTUAL is set, this field assists in locating the virtual | |
1005 | base. The actual contents are language-dependent. Under the old | |
1006 | ABI, the C++ front-end uses a FIELD_DECL whose contents are a | |
1007 | pointer to the virtual base; under the new ABI this field is | |
1008 | instead a INTEGER_CST giving an offset into the vtable where the | |
1009 | offset to the virtual base can be found. */ | |
2cc3ac7a MS |
1010 | #define BINFO_VPTR_FIELD(NODE) TREE_VEC_ELT ((NODE), 5) |
1011 | ||
bbc0e641 | 1012 | /* The size of a base class subobject of this type. Not all frontends |
06ceef4e | 1013 | currently allocate the space for these fields. */ |
7d02bbef | 1014 | #define BINFO_SIZE(NODE) TREE_VEC_ELT ((NODE), 6) |
06ceef4e | 1015 | #define BINFO_SIZE_UNIT(NODE) TREE_VEC_ELT ((NODE), 7) |
7d02bbef | 1016 | #define TYPE_BINFO_SIZE(NODE) BINFO_SIZE (TYPE_BINFO (NODE)) |
06ceef4e | 1017 | #define TYPE_BINFO_SIZE_UNIT(NODE) BINFO_SIZE_UNIT (TYPE_BINFO (NODE)) |
8da1b058 RS |
1018 | |
1019 | /* Slot used to build a chain that represents a use of inheritance. | |
1020 | For example, if X is derived from Y, and Y is derived from Z, | |
1021 | then this field can be used to link the binfo node for X to | |
1022 | the binfo node for X's Y to represent the use of inheritance | |
1023 | from X to Y. Similarly, this slot of the binfo node for X's Y | |
1024 | can point to the Z from which Y is inherited (in X's inheritance | |
1025 | hierarchy). In this fashion, one can represent and traverse specific | |
1026 | uses of inheritance using the binfo nodes themselves (instead of | |
1027 | consing new space pointing to binfo nodes). | |
1028 | It is up to the language-dependent front-ends to maintain | |
1029 | this information as necessary. */ | |
1030 | #define BINFO_INHERITANCE_CHAIN(NODE) TREE_VEC_ELT ((NODE), 0) | |
1031 | \f | |
1032 | /* Define fields and accessors for nodes representing declared names. */ | |
1033 | ||
7766fe8e JM |
1034 | /* Nonzero if DECL represents a decl. */ |
1035 | #define DECL_P(DECL) (TREE_CODE_CLASS (TREE_CODE (DECL)) == 'd') | |
8da1b058 RS |
1036 | /* This is the name of the object as written by the user. |
1037 | It is an IDENTIFIER_NODE. */ | |
12b195d9 | 1038 | #define DECL_NAME(NODE) (DECL_CHECK (NODE)->decl.name) |
8da1b058 RS |
1039 | /* This is the name of the object as the assembler will see it |
1040 | (but before any translations made by ASM_OUTPUT_LABELREF). | |
1041 | Often this is the same as DECL_NAME. | |
1042 | It is an IDENTIFIER_NODE. */ | |
12b195d9 | 1043 | #define DECL_ASSEMBLER_NAME(NODE) (DECL_CHECK (NODE)->decl.assembler_name) |
868e8789 DE |
1044 | /* Records the section name in a section attribute. Used to pass |
1045 | the name from decl_attributes to make_function_rtl and make_decl_rtl. */ | |
12b195d9 | 1046 | #define DECL_SECTION_NAME(NODE) (DECL_CHECK (NODE)->decl.section_name) |
9b800101 | 1047 | /* For FIELD_DECLs, this is the |
3635a54b RK |
1048 | RECORD_TYPE, UNION_TYPE, or QUAL_UNION_TYPE node that the field is |
1049 | a member of. For VAR_DECL, PARM_DECL, FUNCTION_DECL, LABEL_DECL, | |
a082c85a JM |
1050 | and CONST_DECL nodes, this points to either the FUNCTION_DECL for the |
1051 | containing function, the RECORD_TYPE or UNION_TYPE for the containing | |
1052 | type, or NULL_TREE if the given decl has "file scope". */ | |
12b195d9 | 1053 | #define DECL_CONTEXT(NODE) (DECL_CHECK (NODE)->decl.context) |
770ae6cc | 1054 | #define DECL_FIELD_CONTEXT(NODE) (FIELD_DECL_CHECK (NODE)->decl.context) |
77cf75a8 RK |
1055 | /* In a DECL this is the field where configuration dependent machine |
1056 | attributes are store */ | |
12b195d9 | 1057 | #define DECL_MACHINE_ATTRIBUTES(NODE) (DECL_CHECK (NODE)->decl.machine_attributes) |
770ae6cc RK |
1058 | /* In a FIELD_DECL, this is the field position, counting in bytes, of the |
1059 | byte containing the bit closest to the beginning of the structure. */ | |
1060 | #define DECL_FIELD_OFFSET(NODE) (FIELD_DECL_CHECK (NODE)->decl.arguments) | |
1061 | /* In a FIELD_DECL, this is the offset, in bits, of the first bit of the | |
1062 | field from DECL_FIELD_OFFSET. */ | |
1063 | #define DECL_FIELD_BIT_OFFSET(NODE) (FIELD_DECL_CHECK (NODE)->decl.u2.t) | |
8da1b058 | 1064 | /* In a FIELD_DECL, this indicates whether the field was a bit-field and |
8e148bef RS |
1065 | if so, the type that was originally specified for it. |
1066 | TREE_TYPE may have been modified (in finish_struct). */ | |
770ae6cc | 1067 | #define DECL_BIT_FIELD_TYPE(NODE) (FIELD_DECL_CHECK (NODE)->decl.result) |
8da1b058 RS |
1068 | /* In FUNCTION_DECL, a chain of ..._DECL nodes. */ |
1069 | /* VAR_DECL and PARM_DECL reserve the arguments slot | |
1070 | for language-specific uses. */ | |
12b195d9 | 1071 | #define DECL_ARGUMENTS(NODE) (DECL_CHECK (NODE)->decl.arguments) |
17aec3eb RK |
1072 | /* This field is used to reference anything in decl.result and is meant only |
1073 | for use by the garbage collector. */ | |
1074 | #define DECL_RESULT_FLD(NODE) (DECL_CHECK (NODE)->decl.result) | |
8da1b058 | 1075 | /* In FUNCTION_DECL, holds the decl for the return value. */ |
770ae6cc | 1076 | #define DECL_RESULT(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.result) |
9506a28d | 1077 | /* For a TYPE_DECL, holds the "original" type. (TREE_TYPE has the copy.) */ |
770ae6cc | 1078 | #define DECL_ORIGINAL_TYPE(NODE) (TYPE_DECL_CHECK (NODE)->decl.result) |
8da1b058 | 1079 | /* In PARM_DECL, holds the type as written (perhaps a function or array). */ |
770ae6cc | 1080 | #define DECL_ARG_TYPE_AS_WRITTEN(NODE) (PARM_DECL_CHECK (NODE)->decl.result) |
8da1b058 RS |
1081 | /* For a FUNCTION_DECL, holds the tree of BINDINGs. |
1082 | For a VAR_DECL, holds the initial value. | |
1083 | For a PARM_DECL, not used--default | |
1084 | values for parameters are encoded in the type of the function, | |
1085 | not in the PARM_DECL slot. */ | |
12b195d9 | 1086 | #define DECL_INITIAL(NODE) (DECL_CHECK (NODE)->decl.initial) |
8da1b058 RS |
1087 | /* For a PARM_DECL, records the data type used to pass the argument, |
1088 | which may be different from the type seen in the program. */ | |
770ae6cc | 1089 | #define DECL_ARG_TYPE(NODE) (PARM_DECL_CHECK (NODE)->decl.initial) |
3635a54b RK |
1090 | /* For a FIELD_DECL in a QUAL_UNION_TYPE, records the expression, which |
1091 | if nonzero, indicates that the field occupies the type. */ | |
770ae6cc | 1092 | #define DECL_QUALIFIER(NODE) (FIELD_DECL_CHECK (NODE)->decl.initial) |
8da1b058 | 1093 | /* These two fields describe where in the source code the declaration was. */ |
12b195d9 ML |
1094 | #define DECL_SOURCE_FILE(NODE) (DECL_CHECK (NODE)->decl.filename) |
1095 | #define DECL_SOURCE_LINE(NODE) (DECL_CHECK (NODE)->decl.linenum) | |
06ceef4e | 1096 | /* Holds the size of the datum, in bits, as a tree expression. |
8da1b058 | 1097 | Need not be constant. */ |
12b195d9 | 1098 | #define DECL_SIZE(NODE) (DECL_CHECK (NODE)->decl.size) |
06ceef4e RK |
1099 | /* Likewise for the size in bytes. */ |
1100 | #define DECL_SIZE_UNIT(NODE) (DECL_CHECK (NODE)->decl.size_unit) | |
8da1b058 | 1101 | /* Holds the alignment required for the datum. */ |
770ae6cc | 1102 | #define DECL_ALIGN(NODE) (DECL_CHECK (NODE)->decl.u1.a.align) |
aa4661f8 | 1103 | /* For FIELD_DECLs, holds the alignment that DECL_FIELD_OFFSET has. */ |
770ae6cc | 1104 | #define DECL_OFFSET_ALIGN(NODE) (FIELD_DECL_CHECK (NODE)->decl.u1.a.off_align) |
17c73321 RK |
1105 | /* Holds the machine mode corresponding to the declaration of a variable or |
1106 | field. Always equal to TYPE_MODE (TREE_TYPE (decl)) except for a | |
1107 | FIELD_DECL. */ | |
12b195d9 | 1108 | #define DECL_MODE(NODE) (DECL_CHECK (NODE)->decl.mode) |
17c73321 RK |
1109 | /* Holds the RTL expression for the value of a variable or function. If |
1110 | PROMOTED_MODE is defined, the mode of this expression may not be same | |
1111 | as DECL_MODE. In that case, DECL_MODE contains the mode corresponding | |
1112 | to the variable's data type, while the mode | |
1113 | of DECL_RTL is the mode actually used to contain the data. */ | |
12b195d9 | 1114 | #define DECL_RTL(NODE) (DECL_CHECK (NODE)->decl.rtl) |
0dfa1860 MM |
1115 | /* Holds an INSN_LIST of all of the live ranges in which the variable |
1116 | has been moved to a possibly different register. */ | |
12b195d9 | 1117 | #define DECL_LIVE_RANGE_RTL(NODE) (DECL_CHECK (NODE)->decl.live_range_rtl) |
8da1b058 RS |
1118 | /* For PARM_DECL, holds an RTL for the stack slot or register |
1119 | where the data was actually passed. */ | |
770ae6cc | 1120 | #define DECL_INCOMING_RTL(NODE) (PARM_DECL_CHECK (NODE)->decl.u2.r) |
8da1b058 | 1121 | /* For FUNCTION_DECL, if it is inline, holds the saved insn chain. */ |
770ae6cc | 1122 | #define DECL_SAVED_INSNS(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.u2.f) |
66321686 RS |
1123 | /* For FUNCTION_DECL, if it is inline, |
1124 | holds the size of the stack frame, as an integer. */ | |
770ae6cc | 1125 | #define DECL_FRAME_SIZE(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.u1.i) |
66321686 RS |
1126 | /* For FUNCTION_DECL, if it is built-in, |
1127 | this identifies which built-in operation it is. */ | |
770ae6cc | 1128 | #define DECL_FUNCTION_CODE(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.u1.f) |
8da1b058 RS |
1129 | |
1130 | /* The DECL_VINDEX is used for FUNCTION_DECLS in two different ways. | |
1131 | Before the struct containing the FUNCTION_DECL is laid out, | |
1132 | DECL_VINDEX may point to a FUNCTION_DECL in a base class which | |
1133 | is the FUNCTION_DECL which this FUNCTION_DECL will replace as a virtual | |
1134 | function. When the class is laid out, this pointer is changed | |
1135 | to an INTEGER_CST node which is suitable for use as an index | |
1136 | into the virtual function table. */ | |
12b195d9 | 1137 | #define DECL_VINDEX(NODE) (DECL_CHECK (NODE)->decl.vindex) |
8da1b058 RS |
1138 | /* For FIELD_DECLS, DECL_FCONTEXT is the *first* baseclass in |
1139 | which this FIELD_DECL is defined. This information is needed when | |
1140 | writing debugging information about vfield and vbase decls for C++. */ | |
770ae6cc | 1141 | #define DECL_FCONTEXT(NODE) (FIELD_DECL_CHECK (NODE)->decl.vindex) |
8da1b058 | 1142 | |
0e77444b | 1143 | /* Every ..._DECL node gets a unique number. */ |
12b195d9 | 1144 | #define DECL_UID(NODE) (DECL_CHECK (NODE)->decl.uid) |
0e77444b | 1145 | |
c5caa350 CH |
1146 | /* For any sort of a ..._DECL node, this points to the original (abstract) |
1147 | decl node which this decl is an instance of, or else it is NULL indicating | |
4a7d05dc DE |
1148 | that this decl is not an instance of some other decl. For example, |
1149 | in a nested declaration of an inline function, this points back to the | |
1150 | definition. */ | |
12b195d9 | 1151 | #define DECL_ABSTRACT_ORIGIN(NODE) (DECL_CHECK (NODE)->decl.abstract_origin) |
c5caa350 | 1152 | |
02e24c7a MM |
1153 | /* Like DECL_ABSTRACT_ORIGIN, but returns NODE if there's no abstract |
1154 | origin. This is useful when setting the DECL_ABSTRACT_ORIGIN. */ | |
1155 | #define DECL_ORIGIN(NODE) \ | |
1156 | (DECL_ABSTRACT_ORIGIN (NODE) ? DECL_ABSTRACT_ORIGIN (NODE) : NODE) | |
1157 | ||
c5caa350 CH |
1158 | /* Nonzero for any sort of ..._DECL node means this decl node represents |
1159 | an inline instance of some original (abstract) decl from an inline function; | |
3d62d651 ZW |
1160 | suppress any warnings about shadowing some other variable. |
1161 | FUNCTION_DECL nodes can also have their abstract origin set to themselves | |
1162 | (see save_for_inline_copying). */ | |
1163 | #define DECL_FROM_INLINE(NODE) (DECL_ABSTRACT_ORIGIN (NODE) != (tree) 0 \ | |
1164 | && DECL_ABSTRACT_ORIGIN (NODE) != (NODE)) | |
8da1b058 RS |
1165 | |
1166 | /* Nonzero if a _DECL means that the name of this decl should be ignored | |
1167 | for symbolic debug purposes. */ | |
12b195d9 | 1168 | #define DECL_IGNORED_P(NODE) (DECL_CHECK (NODE)->decl.ignored_flag) |
8da1b058 | 1169 | |
c5caa350 CH |
1170 | /* Nonzero for a given ..._DECL node means that this node represents an |
1171 | "abstract instance" of the given declaration (e.g. in the original | |
1172 | declaration of an inline function). When generating symbolic debugging | |
9faa82d8 | 1173 | information, we mustn't try to generate any address information for nodes |
c5caa350 CH |
1174 | marked as "abstract instances" because we don't actually generate |
1175 | any code or allocate any data space for such instances. */ | |
12b195d9 | 1176 | #define DECL_ABSTRACT(NODE) (DECL_CHECK (NODE)->decl.abstract_flag) |
c5caa350 | 1177 | |
3110a56e RS |
1178 | /* Nonzero if a _DECL means that no warnings should be generated just |
1179 | because this decl is unused. */ | |
12b195d9 | 1180 | #define DECL_IN_SYSTEM_HEADER(NODE) (DECL_CHECK (NODE)->decl.in_system_header_flag) |
3110a56e | 1181 | |
2c0d84d6 MS |
1182 | /* Nonzero for a given ..._DECL node means that this node should be |
1183 | put in .common, if possible. If a DECL_INITIAL is given, and it | |
1184 | is not error_mark_node, then the decl cannot be put in .common. */ | |
12b195d9 | 1185 | #define DECL_COMMON(NODE) (DECL_CHECK (NODE)->decl.common_flag) |
2c0d84d6 | 1186 | |
3110a56e | 1187 | /* Language-specific decl information. */ |
12b195d9 | 1188 | #define DECL_LANG_SPECIFIC(NODE) (DECL_CHECK (NODE)->decl.lang_specific) |
8da1b058 RS |
1189 | |
1190 | /* In a VAR_DECL or FUNCTION_DECL, | |
1191 | nonzero means external reference: | |
1192 | do not allocate storage, and refer to a definition elsewhere. */ | |
12b195d9 | 1193 | #define DECL_EXTERNAL(NODE) (DECL_CHECK (NODE)->decl.external_flag) |
8da1b058 | 1194 | |
2ce3c6c6 JM |
1195 | /* In a VAR_DECL for a RECORD_TYPE, sets number for non-init_priority |
1196 | initializatons. */ | |
1197 | #define DEFAULT_INIT_PRIORITY 65535 | |
1198 | #define MAX_INIT_PRIORITY 65535 | |
9a6e70c9 | 1199 | #define MAX_RESERVED_INIT_PRIORITY 100 |
2ce3c6c6 | 1200 | |
60e9e4b7 DE |
1201 | /* In a TYPE_DECL |
1202 | nonzero means the detail info about this type is not dumped into stabs. | |
5a783256 | 1203 | Instead it will generate cross reference ('x') of names. |
60e9e4b7 | 1204 | This uses the same flag as DECL_EXTERNAL. */ |
770ae6cc RK |
1205 | #define TYPE_DECL_SUPPRESS_DEBUG(NODE) \ |
1206 | (TYPE_DECL_CHECK (NODE)->decl.external_flag) | |
60e9e4b7 | 1207 | |
a5f99f01 | 1208 | /* In VAR_DECL and PARM_DECL nodes, nonzero means declared `register'. */ |
12b195d9 | 1209 | #define DECL_REGISTER(NODE) (DECL_CHECK (NODE)->decl.regdecl_flag) |
a5f99f01 RK |
1210 | /* In LABEL_DECL nodes, nonzero means that an error message about |
1211 | jumping into such a binding contour has been printed for this label. */ | |
770ae6cc | 1212 | #define DECL_ERROR_ISSUED(NODE) (LABEL_DECL_CHECK (NODE)->decl.regdecl_flag) |
5a1c7968 | 1213 | /* In a FIELD_DECL, indicates this field should be bit-packed. */ |
770ae6cc | 1214 | #define DECL_PACKED(NODE) (FIELD_DECL_CHECK (NODE)->decl.regdecl_flag) |
a5f99f01 RK |
1215 | /* In a FUNCTION_DECL with a non-zero DECL_CONTEXT, indicates that a |
1216 | static chain is not needed. */ | |
770ae6cc RK |
1217 | #define DECL_NO_STATIC_CHAIN(NODE) \ |
1218 | (FUNCTION_DECL_CHECK (NODE)->decl.regdecl_flag) | |
8da1b058 RS |
1219 | |
1220 | /* Nonzero in a ..._DECL means this variable is ref'd from a nested function. | |
1221 | For VAR_DECL nodes, PARM_DECL nodes, and FUNCTION_DECL nodes. | |
1222 | ||
1223 | For LABEL_DECL nodes, nonzero if nonlocal gotos to the label are permitted. | |
1224 | ||
1225 | Also set in some languages for variables, etc., outside the normal | |
1226 | lexical scope, such as class instance variables. */ | |
12b195d9 | 1227 | #define DECL_NONLOCAL(NODE) (DECL_CHECK (NODE)->decl.nonlocal_flag) |
8da1b058 RS |
1228 | |
1229 | /* Nonzero in a FUNCTION_DECL means this function can be substituted | |
1230 | where it is called. */ | |
770ae6cc | 1231 | #define DECL_INLINE(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.inline_flag) |
8da1b058 RS |
1232 | |
1233 | /* Nonzero in a FUNCTION_DECL means this is a built-in function | |
1234 | that is not specified by ansi C and that users are supposed to be allowed | |
1235 | to redefine for any purpose whatever. */ | |
770ae6cc RK |
1236 | #define DECL_BUILT_IN_NONANSI(NODE) \ |
1237 | (FUNCTION_DECL_CHECK (NODE)->common.unsigned_flag) | |
8da1b058 | 1238 | |
140592a0 AG |
1239 | /* Nonzero in a FUNCTION_DECL means this function should be treated |
1240 | as if it were a malloc, meaning it returns a pointer that is | |
1241 | not an alias. */ | |
770ae6cc | 1242 | #define DECL_IS_MALLOC(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.malloc_flag) |
140592a0 | 1243 | |
2a8f6b90 JH |
1244 | /* Nonzero in a FUNCTION_DECL means this function should be treated |
1245 | as "pure" function (like const function, but may read global memory). */ | |
1246 | #define DECL_IS_PURE(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.pure_flag) | |
1247 | ||
8da1b058 RS |
1248 | /* Nonzero in a FIELD_DECL means it is a bit field, and must be accessed |
1249 | specially. */ | |
770ae6cc | 1250 | #define DECL_BIT_FIELD(NODE) (FIELD_DECL_CHECK (NODE)->decl.bit_field_flag) |
8da1b058 RS |
1251 | /* In a LABEL_DECL, nonzero means label was defined inside a binding |
1252 | contour that restored a stack level and which is now exited. */ | |
770ae6cc | 1253 | #define DECL_TOO_LATE(NODE) (LABEL_DECL_CHECK (NODE)->decl.bit_field_flag) |
26db82d8 | 1254 | |
12a22e76 | 1255 | /* Unused in FUNCTION_DECL. */ |
26db82d8 | 1256 | |
b8af45d0 RS |
1257 | /* In a VAR_DECL that's static, |
1258 | nonzero if the space is in the text section. */ | |
770ae6cc | 1259 | #define DECL_IN_TEXT_SECTION(NODE) (VAR_DECL_CHECK (NODE)->decl.bit_field_flag) |
8da1b058 | 1260 | |
12a22e76 JM |
1261 | /* In a FUNCTION_DECL, nonzero means a built in function. */ |
1262 | #define DECL_BUILT_IN(NODE) (DECL_BUILT_IN_CLASS (NODE) != NOT_BUILT_IN) | |
1263 | /* For a builtin function, identify which part of the compiler defined it. */ | |
770ae6cc RK |
1264 | #define DECL_BUILT_IN_CLASS(NODE) \ |
1265 | (FUNCTION_DECL_CHECK (NODE)->decl.built_in_class) | |
12a22e76 | 1266 | |
5a1c7968 | 1267 | /* Used in VAR_DECLs to indicate that the variable is a vtable. |
2458b9c0 JM |
1268 | Used in FIELD_DECLs for vtable pointers. |
1269 | Used in FUNCTION_DECLs to indicate that the function is virtual. */ | |
12b195d9 | 1270 | #define DECL_VIRTUAL_P(NODE) (DECL_CHECK (NODE)->decl.virtual_flag) |
8da1b058 | 1271 | |
30801830 JM |
1272 | /* Used to indicate that the linkage status of this DECL is not yet known, |
1273 | so it should not be output now. */ | |
12b195d9 | 1274 | #define DECL_DEFER_OUTPUT(NODE) (DECL_CHECK (NODE)->decl.defer_output) |
30801830 | 1275 | |
adb23061 RK |
1276 | /* Used in PARM_DECLs whose type are unions to indicate that the |
1277 | argument should be passed in the same way that the first union | |
1278 | alternative would be passed. */ | |
770ae6cc RK |
1279 | #define DECL_TRANSPARENT_UNION(NODE) \ |
1280 | (PARM_DECL_CHECK (NODE)->decl.transparent_union) | |
adb23061 | 1281 | |
2c5f4139 JM |
1282 | /* Used in FUNCTION_DECLs to indicate that they should be run automatically |
1283 | at the beginning or end of execution. */ | |
770ae6cc RK |
1284 | #define DECL_STATIC_CONSTRUCTOR(NODE) \ |
1285 | (FUNCTION_DECL_CHECK (NODE)->decl.static_ctor_flag) | |
1286 | ||
1287 | #define DECL_STATIC_DESTRUCTOR(NODE) \ | |
1288 | (FUNCTION_DECL_CHECK (NODE)->decl.static_dtor_flag) | |
2c5f4139 | 1289 | |
3edbc4b9 | 1290 | /* Used to indicate that this DECL represents a compiler-generated entity. */ |
12b195d9 | 1291 | #define DECL_ARTIFICIAL(NODE) (DECL_CHECK (NODE)->decl.artificial_flag) |
3edbc4b9 | 1292 | |
daefd78b | 1293 | /* Used to indicate that this DECL has weak linkage. */ |
12b195d9 | 1294 | #define DECL_WEAK(NODE) (DECL_CHECK (NODE)->decl.weak_flag) |
daefd78b | 1295 | |
c5bd82cb JM |
1296 | /* Used in TREE_PUBLIC decls to indicate that copies of this DECL in |
1297 | multiple translation units should be merged. */ | |
12b195d9 | 1298 | #define DECL_ONE_ONLY(NODE) (DECL_CHECK (NODE)->decl.transparent_union) |
c5bd82cb | 1299 | |
59182242 MM |
1300 | /* Used in a DECL to indicate that, even if it TREE_PUBLIC, it need |
1301 | not be put out unless it is needed in this translation unit. | |
1302 | Entities like this are shared across translation units (like weak | |
1303 | entities), but are guaranteed to be generated by any translation | |
1304 | unit that needs them, and therefore need not be put out anywhere | |
1305 | where they are not needed. DECL_COMDAT is just a hint to the | |
1306 | back-end; it is up to front-ends which set this flag to ensure | |
1307 | that there will never be any harm, other than bloat, in putting out | |
1308 | something which is DECL_COMDAT. */ | |
1309 | #define DECL_COMDAT(NODE) (DECL_CHECK (NODE)->decl.comdat_flag) | |
1310 | ||
07417085 KR |
1311 | /* Used in FUNCTION_DECLs to indicate that function entry and exit should |
1312 | be instrumented with calls to support routines. */ | |
770ae6cc RK |
1313 | #define DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT(NODE) \ |
1314 | (FUNCTION_DECL_CHECK (NODE)->decl.no_instrument_function_entry_exit) | |
07417085 | 1315 | |
c5c76735 JL |
1316 | /* Used in FUNCTION_DECLs to indicate that check-memory-usage should be |
1317 | disabled in this function. */ | |
770ae6cc RK |
1318 | #define DECL_NO_CHECK_MEMORY_USAGE(NODE) \ |
1319 | (FUNCTION_DECL_CHECK (NODE)->decl.no_check_memory_usage) | |
7d384cc0 | 1320 | |
a157febd GK |
1321 | /* Used in FUNCTION_DECLs to indicate that limit-stack-* should be |
1322 | disabled in this function. */ | |
770ae6cc RK |
1323 | #define DECL_NO_LIMIT_STACK(NODE) \ |
1324 | (FUNCTION_DECL_CHECK (NODE)->decl.no_limit_stack) | |
a157febd | 1325 | |
8da1b058 | 1326 | /* Additional flags for language-specific uses. */ |
12b195d9 ML |
1327 | #define DECL_LANG_FLAG_0(NODE) (DECL_CHECK (NODE)->decl.lang_flag_0) |
1328 | #define DECL_LANG_FLAG_1(NODE) (DECL_CHECK (NODE)->decl.lang_flag_1) | |
1329 | #define DECL_LANG_FLAG_2(NODE) (DECL_CHECK (NODE)->decl.lang_flag_2) | |
1330 | #define DECL_LANG_FLAG_3(NODE) (DECL_CHECK (NODE)->decl.lang_flag_3) | |
1331 | #define DECL_LANG_FLAG_4(NODE) (DECL_CHECK (NODE)->decl.lang_flag_4) | |
1332 | #define DECL_LANG_FLAG_5(NODE) (DECL_CHECK (NODE)->decl.lang_flag_5) | |
1333 | #define DECL_LANG_FLAG_6(NODE) (DECL_CHECK (NODE)->decl.lang_flag_6) | |
1334 | #define DECL_LANG_FLAG_7(NODE) (DECL_CHECK (NODE)->decl.lang_flag_7) | |
8da1b058 | 1335 | |
27da1b4d MK |
1336 | /* Used to indicate that the pointer to this DECL cannot be treated as |
1337 | an address constant. */ | |
1338 | #define DECL_NON_ADDR_CONST_P(NODE) (DECL_CHECK (NODE)->decl.non_addr_const_p) | |
1339 | ||
3932261a MM |
1340 | /* Used to indicate an alias set for the memory pointed to by this |
1341 | particular FIELD_DECL, PARM_DECL, or VAR_DECL, which must have | |
1342 | pointer (or reference) type. */ | |
1343 | #define DECL_POINTER_ALIAS_SET(NODE) \ | |
1344 | (DECL_CHECK (NODE)->decl.pointer_alias_set) | |
1345 | ||
1346 | /* Nonzero if an alias set has been assigned to this declaration. */ | |
1347 | #define DECL_POINTER_ALIAS_SET_KNOWN_P(NODE) \ | |
1348 | (DECL_POINTER_ALIAS_SET (NODE) != - 1) | |
1349 | ||
8da1b058 RS |
1350 | struct tree_decl |
1351 | { | |
1352 | char common[sizeof (struct tree_common)]; | |
1353 | char *filename; | |
1354 | int linenum; | |
0e77444b | 1355 | unsigned int uid; |
09f532c9 | 1356 | union tree_node *size; |
e60a8c26 | 1357 | ENUM_BITFIELD(machine_mode) mode : 8; |
8da1b058 RS |
1358 | |
1359 | unsigned external_flag : 1; | |
1360 | unsigned nonlocal_flag : 1; | |
1361 | unsigned regdecl_flag : 1; | |
1362 | unsigned inline_flag : 1; | |
1363 | unsigned bit_field_flag : 1; | |
1364 | unsigned virtual_flag : 1; | |
8da1b058 | 1365 | unsigned ignored_flag : 1; |
c5caa350 | 1366 | unsigned abstract_flag : 1; |
8da1b058 | 1367 | |
3110a56e | 1368 | unsigned in_system_header_flag : 1; |
2c0d84d6 | 1369 | unsigned common_flag : 1; |
30801830 | 1370 | unsigned defer_output : 1; |
adb23061 | 1371 | unsigned transparent_union : 1; |
2c5f4139 JM |
1372 | unsigned static_ctor_flag : 1; |
1373 | unsigned static_dtor_flag : 1; | |
3edbc4b9 | 1374 | unsigned artificial_flag : 1; |
daefd78b | 1375 | unsigned weak_flag : 1; |
3110a56e | 1376 | |
9df2c88c RK |
1377 | unsigned non_addr_const_p : 1; |
1378 | unsigned no_instrument_function_entry_exit : 1; | |
1379 | unsigned no_check_memory_usage : 1; | |
1380 | unsigned comdat_flag : 1; | |
1381 | unsigned malloc_flag : 1; | |
1382 | unsigned no_limit_stack : 1; | |
2a8f6b90 | 1383 | unsigned pure_flag : 1; |
c149cc37 | 1384 | ENUM_BITFIELD(built_in_class) built_in_class : 2; |
9df2c88c | 1385 | |
8da1b058 RS |
1386 | unsigned lang_flag_0 : 1; |
1387 | unsigned lang_flag_1 : 1; | |
1388 | unsigned lang_flag_2 : 1; | |
1389 | unsigned lang_flag_3 : 1; | |
1390 | unsigned lang_flag_4 : 1; | |
1391 | unsigned lang_flag_5 : 1; | |
1392 | unsigned lang_flag_6 : 1; | |
1393 | unsigned lang_flag_7 : 1; | |
1394 | ||
09f532c9 RK |
1395 | /* For a FUNCTION_DECL, if inline, this is the size of frame needed. |
1396 | If built-in, this is the code for which built-in function. | |
770ae6cc | 1397 | For other kinds of decls, this is DECL_ALIGN and DECL_OFFSET_ALIGN. */ |
09f532c9 | 1398 | union { |
9df2c88c | 1399 | HOST_WIDE_INT i; |
9df2c88c | 1400 | enum built_in_function f; |
770ae6cc | 1401 | struct {unsigned int align : 24; unsigned int off_align : 8;} a; |
9df2c88c | 1402 | } u1; |
09f532c9 | 1403 | |
06ceef4e | 1404 | union tree_node *size_unit; |
8da1b058 RS |
1405 | union tree_node *name; |
1406 | union tree_node *context; | |
770ae6cc | 1407 | union tree_node *arguments; /* Also used for DECL_FIELD_OFFSET */ |
06ceef4e RK |
1408 | union tree_node *result; /* Also used for DECL_BIT_FIELD_TYPE */ |
1409 | union tree_node *initial; /* Also used for DECL_QUALIFIER */ | |
c5caa350 | 1410 | union tree_node *abstract_origin; |
8da1b058 | 1411 | union tree_node *assembler_name; |
868e8789 | 1412 | union tree_node *section_name; |
77cf75a8 | 1413 | union tree_node *machine_attributes; |
9df2c88c | 1414 | struct rtx_def *rtl; /* RTL representation for object. */ |
0dfa1860 | 1415 | struct rtx_def *live_range_rtl; |
06ceef4e | 1416 | |
9df2c88c | 1417 | /* In FUNCTION_DECL, if it is inline, holds the saved insn chain. |
770ae6cc | 1418 | In FIELD_DECL, is DECL_FIELD_BIT_OFFSET. |
9df2c88c RK |
1419 | In PARM_DECL, holds an RTL for the stack slot |
1420 | of register where the data was actually passed. | |
1421 | Used by Chill and Java in LABEL_DECL and by C++ and Java in VAR_DECL. */ | |
77f934bb | 1422 | union { |
49ad7cfa | 1423 | struct function *f; |
77f934bb | 1424 | struct rtx_def *r; |
9df2c88c RK |
1425 | union tree_node *t; |
1426 | int i; | |
1427 | } u2; | |
1428 | ||
8da1b058 | 1429 | union tree_node *vindex; |
3932261a | 1430 | int pointer_alias_set; |
8da1b058 RS |
1431 | /* Points to a structure whose details depend on the language in use. */ |
1432 | struct lang_decl *lang_specific; | |
1433 | }; | |
1434 | \f | |
1435 | /* Define the overall contents of a tree node. | |
1436 | It may be any of the structures declared above | |
1437 | for various types of node. */ | |
1438 | ||
1439 | union tree_node | |
1440 | { | |
1441 | struct tree_common common; | |
1442 | struct tree_int_cst int_cst; | |
1443 | struct tree_real_cst real_cst; | |
1444 | struct tree_string string; | |
1445 | struct tree_complex complex; | |
1446 | struct tree_identifier identifier; | |
1447 | struct tree_decl decl; | |
1448 | struct tree_type type; | |
1449 | struct tree_list list; | |
1450 | struct tree_vec vec; | |
1451 | struct tree_exp exp; | |
61131fa2 | 1452 | struct tree_block block; |
8da1b058 | 1453 | }; |
1d2a8985 | 1454 | \f |
81b3411c BS |
1455 | /* Standard named or nameless data types of the C compiler. */ |
1456 | ||
1457 | enum tree_index | |
1458 | { | |
1459 | TI_ERROR_MARK, | |
1460 | TI_INTQI_TYPE, | |
1461 | TI_INTHI_TYPE, | |
1462 | TI_INTSI_TYPE, | |
1463 | TI_INTDI_TYPE, | |
1464 | TI_INTTI_TYPE, | |
1465 | ||
1466 | TI_UINTQI_TYPE, | |
1467 | TI_UINTHI_TYPE, | |
1468 | TI_UINTSI_TYPE, | |
1469 | TI_UINTDI_TYPE, | |
1470 | TI_UINTTI_TYPE, | |
1471 | ||
81b3411c BS |
1472 | TI_INTEGER_ZERO, |
1473 | TI_INTEGER_ONE, | |
1474 | TI_NULL_POINTER, | |
1475 | ||
1476 | TI_SIZE_ZERO, | |
1477 | TI_SIZE_ONE, | |
770ae6cc RK |
1478 | |
1479 | TI_BITSIZE_ZERO, | |
1480 | TI_BITSIZE_ONE, | |
1481 | TI_BITSIZE_UNIT, | |
1482 | ||
81b3411c BS |
1483 | TI_COMPLEX_INTEGER_TYPE, |
1484 | TI_COMPLEX_FLOAT_TYPE, | |
1485 | TI_COMPLEX_DOUBLE_TYPE, | |
1486 | TI_COMPLEX_LONG_DOUBLE_TYPE, | |
1487 | ||
1488 | TI_FLOAT_TYPE, | |
1489 | TI_DOUBLE_TYPE, | |
1490 | TI_LONG_DOUBLE_TYPE, | |
1491 | ||
1492 | TI_VOID_TYPE, | |
1493 | TI_PTR_TYPE, | |
1494 | TI_CONST_PTR_TYPE, | |
1495 | TI_PTRDIFF_TYPE, | |
1496 | TI_VA_LIST_TYPE, | |
1497 | ||
1498 | TI_MAX | |
1499 | }; | |
1500 | ||
1501 | extern tree global_trees[TI_MAX]; | |
1502 | ||
1503 | #define error_mark_node global_trees[TI_ERROR_MARK] | |
1504 | ||
1505 | #define intQI_type_node global_trees[TI_INTQI_TYPE] | |
1506 | #define intHI_type_node global_trees[TI_INTHI_TYPE] | |
1507 | #define intSI_type_node global_trees[TI_INTSI_TYPE] | |
1508 | #define intDI_type_node global_trees[TI_INTDI_TYPE] | |
1509 | #define intTI_type_node global_trees[TI_INTTI_TYPE] | |
1510 | ||
1511 | #define unsigned_intQI_type_node global_trees[TI_UINTQI_TYPE] | |
1512 | #define unsigned_intHI_type_node global_trees[TI_UINTHI_TYPE] | |
1513 | #define unsigned_intSI_type_node global_trees[TI_UINTSI_TYPE] | |
1514 | #define unsigned_intDI_type_node global_trees[TI_UINTDI_TYPE] | |
1515 | #define unsigned_intTI_type_node global_trees[TI_UINTTI_TYPE] | |
1516 | ||
81b3411c BS |
1517 | #define integer_zero_node global_trees[TI_INTEGER_ZERO] |
1518 | #define integer_one_node global_trees[TI_INTEGER_ONE] | |
1519 | #define size_zero_node global_trees[TI_SIZE_ZERO] | |
1520 | #define size_one_node global_trees[TI_SIZE_ONE] | |
770ae6cc RK |
1521 | #define bitsize_zero_node global_trees[TI_BITSIZE_ZERO] |
1522 | #define bitsize_one_node global_trees[TI_BITSIZE_ONE] | |
1523 | #define bitsize_unit_node global_trees[TI_BITSIZE_UNIT] | |
1524 | ||
81b3411c BS |
1525 | #define null_pointer_node global_trees[TI_NULL_POINTER] |
1526 | ||
1527 | #define float_type_node global_trees[TI_FLOAT_TYPE] | |
1528 | #define double_type_node global_trees[TI_DOUBLE_TYPE] | |
1529 | #define long_double_type_node global_trees[TI_LONG_DOUBLE_TYPE] | |
1530 | ||
1531 | #define complex_integer_type_node global_trees[TI_COMPLEX_INTEGER_TYPE] | |
1532 | #define complex_float_type_node global_trees[TI_COMPLEX_FLOAT_TYPE] | |
1533 | #define complex_double_type_node global_trees[TI_COMPLEX_DOUBLE_TYPE] | |
1534 | #define complex_long_double_type_node global_trees[TI_COMPLEX_LONG_DOUBLE_TYPE] | |
1535 | ||
1536 | #define void_type_node global_trees[TI_VOID_TYPE] | |
fc693822 | 1537 | /* The C type `void *'. */ |
81b3411c | 1538 | #define ptr_type_node global_trees[TI_PTR_TYPE] |
fc693822 | 1539 | /* The C type `const void *'. */ |
81b3411c BS |
1540 | #define const_ptr_type_node global_trees[TI_CONST_PTR_TYPE] |
1541 | #define ptrdiff_type_node global_trees[TI_PTRDIFF_TYPE] | |
1542 | #define va_list_type_node global_trees[TI_VA_LIST_TYPE] | |
7145ef21 MM |
1543 | |
1544 | /* An enumeration of the standard C integer types. These must be | |
1545 | ordered so that shorter types appear before longer ones. */ | |
1546 | enum integer_type_kind | |
1547 | { | |
1548 | itk_char, | |
1549 | itk_signed_char, | |
1550 | itk_unsigned_char, | |
1551 | itk_short, | |
1552 | itk_unsigned_short, | |
1553 | itk_int, | |
1554 | itk_unsigned_int, | |
1555 | itk_long, | |
1556 | itk_unsigned_long, | |
1557 | itk_long_long, | |
1558 | itk_unsigned_long_long, | |
1559 | itk_none | |
1560 | }; | |
1561 | ||
1562 | typedef enum integer_type_kind integer_type_kind; | |
1563 | ||
1564 | /* The standard C integer types. Use integer_type_kind to index into | |
1565 | this array. */ | |
1566 | extern tree integer_types[itk_none]; | |
1567 | ||
1568 | #define char_type_node integer_types[itk_char] | |
1569 | #define signed_char_type_node integer_types[itk_signed_char] | |
1570 | #define unsigned_char_type_node integer_types[itk_unsigned_char] | |
1571 | #define short_integer_type_node integer_types[itk_short] | |
1572 | #define short_unsigned_type_node integer_types[itk_unsigned_short] | |
1573 | #define integer_type_node integer_types[itk_int] | |
1574 | #define unsigned_type_node integer_types[itk_unsigned_int] | |
1575 | #define long_integer_type_node integer_types[itk_long] | |
1576 | #define long_unsigned_type_node integer_types[itk_unsigned_long] | |
1577 | #define long_long_integer_type_node integer_types[itk_long_long] | |
1578 | #define long_long_unsigned_type_node integer_types[itk_unsigned_long_long] | |
1579 | ||
81b3411c | 1580 | \f |
f837a861 MM |
1581 | #define NULL_TREE (tree) NULL |
1582 | ||
e5d70561 RK |
1583 | /* The following functions accept a wide integer argument. Rather than |
1584 | having to cast on every function call, we use a macro instead, that is | |
1585 | defined here and in rtl.h. */ | |
1586 | ||
1587 | #ifndef exact_log2 | |
a1d061a1 JL |
1588 | #define exact_log2(N) exact_log2_wide ((unsigned HOST_WIDE_INT) (N)) |
1589 | #define floor_log2(N) floor_log2_wide ((unsigned HOST_WIDE_INT) (N)) | |
e5d70561 | 1590 | #endif |
58782098 KG |
1591 | extern int exact_log2_wide PARAMS ((unsigned HOST_WIDE_INT)); |
1592 | extern int floor_log2_wide PARAMS ((unsigned HOST_WIDE_INT)); | |
e5d70561 | 1593 | |
58782098 KG |
1594 | extern char *oballoc PARAMS ((int)); |
1595 | extern char *permalloc PARAMS ((int)); | |
1596 | extern char *savealloc PARAMS ((int)); | |
1597 | extern char *expralloc PARAMS ((int)); | |
8da1b058 RS |
1598 | |
1599 | /* Lowest level primitive for allocating a node. | |
1600 | The TREE_CODE is the only argument. Contents are initialized | |
1601 | to zero except for a few of the common fields. */ | |
1602 | ||
58782098 KG |
1603 | extern tree make_node PARAMS ((enum tree_code)); |
1604 | extern tree make_lang_type PARAMS ((enum tree_code)); | |
1605 | extern tree (*make_lang_type_fn) PARAMS ((enum tree_code)); | |
8da1b058 RS |
1606 | |
1607 | /* Make a copy of a node, with all the same contents except | |
1608 | for TREE_PERMANENT. (The copy is permanent | |
1609 | iff nodes being made now are permanent.) */ | |
1610 | ||
58782098 | 1611 | extern tree copy_node PARAMS ((tree)); |
8da1b058 RS |
1612 | |
1613 | /* Make a copy of a chain of TREE_LIST nodes. */ | |
1614 | ||
58782098 | 1615 | extern tree copy_list PARAMS ((tree)); |
8da1b058 RS |
1616 | |
1617 | /* Make a TREE_VEC. */ | |
1618 | ||
58782098 | 1619 | extern tree make_tree_vec PARAMS ((int)); |
8da1b058 RS |
1620 | |
1621 | /* Return the (unique) IDENTIFIER_NODE node for a given name. | |
1622 | The name is supplied as a char *. */ | |
1623 | ||
58782098 | 1624 | extern tree get_identifier PARAMS ((const char *)); |
8da1b058 | 1625 | |
6b9300aa RK |
1626 | /* If an identifier with the name TEXT (a null-terminated string) has |
1627 | previously been referred to, return that node; otherwise return | |
1628 | NULL_TREE. */ | |
1629 | ||
58782098 | 1630 | extern tree maybe_get_identifier PARAMS ((const char *)); |
6b9300aa | 1631 | |
8da1b058 RS |
1632 | /* Construct various types of nodes. */ |
1633 | ||
e5d70561 RK |
1634 | #define build_int_2(LO,HI) \ |
1635 | build_int_2_wide ((HOST_WIDE_INT) (LO), (HOST_WIDE_INT) (HI)) | |
1636 | ||
58782098 KG |
1637 | extern tree build PARAMS ((enum tree_code, tree, ...)); |
1638 | extern tree build_nt PARAMS ((enum tree_code, ...)); | |
1639 | extern tree build_parse_node PARAMS ((enum tree_code, ...)); | |
1640 | ||
1641 | extern tree build_int_2_wide PARAMS ((HOST_WIDE_INT, HOST_WIDE_INT)); | |
1642 | extern tree build_real PARAMS ((tree, REAL_VALUE_TYPE)); | |
1643 | extern tree build_real_from_int_cst PARAMS ((tree, tree)); | |
1644 | extern tree build_complex PARAMS ((tree, tree, tree)); | |
1645 | extern tree build_string PARAMS ((int, const char *)); | |
1646 | extern tree build1 PARAMS ((enum tree_code, tree, tree)); | |
1647 | extern tree build_tree_list PARAMS ((tree, tree)); | |
1648 | extern tree build_decl_list PARAMS ((tree, tree)); | |
1649 | extern tree build_expr_list PARAMS ((tree, tree)); | |
1650 | extern tree build_decl PARAMS ((enum tree_code, tree, tree)); | |
1651 | extern tree build_block PARAMS ((tree, tree, tree, tree, tree)); | |
1652 | extern tree build_expr_wfl PARAMS ((tree, const char *, int, int)); | |
8da1b058 RS |
1653 | |
1654 | /* Construct various nodes representing data types. */ | |
1655 | ||
58782098 KG |
1656 | extern tree make_signed_type PARAMS ((int)); |
1657 | extern tree make_unsigned_type PARAMS ((int)); | |
fed3cef0 | 1658 | extern void initialize_sizetypes PARAMS ((void)); |
58782098 KG |
1659 | extern void set_sizetype PARAMS ((tree)); |
1660 | extern tree signed_or_unsigned_type PARAMS ((int, tree)); | |
1661 | extern void fixup_unsigned_type PARAMS ((tree)); | |
1662 | extern tree build_pointer_type PARAMS ((tree)); | |
1663 | extern tree build_reference_type PARAMS ((tree)); | |
1664 | extern tree build_index_type PARAMS ((tree)); | |
1665 | extern tree build_index_2_type PARAMS ((tree, tree)); | |
1666 | extern tree build_array_type PARAMS ((tree, tree)); | |
1667 | extern tree build_function_type PARAMS ((tree, tree)); | |
1668 | extern tree build_method_type PARAMS ((tree, tree)); | |
1669 | extern tree build_offset_type PARAMS ((tree, tree)); | |
1670 | extern tree build_complex_type PARAMS ((tree)); | |
1671 | extern tree array_type_nelts PARAMS ((tree)); | |
1672 | ||
1673 | extern tree value_member PARAMS ((tree, tree)); | |
1674 | extern tree purpose_member PARAMS ((tree, tree)); | |
1675 | extern tree binfo_member PARAMS ((tree, tree)); | |
05bccae2 | 1676 | extern unsigned int attribute_hash_list PARAMS ((tree)); |
58782098 KG |
1677 | extern int attribute_list_equal PARAMS ((tree, tree)); |
1678 | extern int attribute_list_contained PARAMS ((tree, tree)); | |
1679 | extern int tree_int_cst_equal PARAMS ((tree, tree)); | |
1680 | extern int tree_int_cst_lt PARAMS ((tree, tree)); | |
665f2503 RK |
1681 | extern int host_integerp PARAMS ((tree, int)); |
1682 | extern HOST_WIDE_INT tree_low_cst PARAMS ((tree, int)); | |
a49a6a68 | 1683 | extern int tree_int_cst_msb PARAMS ((tree)); |
58782098 | 1684 | extern int tree_int_cst_sgn PARAMS ((tree)); |
3facde26 | 1685 | extern int tree_expr_nonnegative_p PARAMS ((tree)); |
58782098 KG |
1686 | extern int index_type_equal PARAMS ((tree, tree)); |
1687 | extern tree get_inner_array_type PARAMS ((tree)); | |
12cfc830 | 1688 | |
f837a861 MM |
1689 | /* From expmed.c. Since rtl.h is included after tree.h, we can't |
1690 | put the prototype here. Rtl.h does declare the prototype if | |
1691 | tree.h had been included. */ | |
1692 | ||
58782098 | 1693 | extern tree make_tree PARAMS ((tree, struct rtx_def *)); |
8da1b058 | 1694 | \f |
bad1b4ba RK |
1695 | /* Return a type like TTYPE except that its TYPE_ATTRIBUTES |
1696 | is ATTRIBUTE. | |
1697 | ||
1698 | Such modified types already made are recorded so that duplicates | |
1699 | are not made. */ | |
1700 | ||
58782098 KG |
1701 | extern tree build_type_attribute_variant PARAMS ((tree, tree)); |
1702 | extern tree build_decl_attribute_variant PARAMS ((tree, tree)); | |
bad1b4ba | 1703 | |
58782098 KG |
1704 | extern tree merge_machine_decl_attributes PARAMS ((tree, tree)); |
1705 | extern tree merge_machine_type_attributes PARAMS ((tree, tree)); | |
d9525bec BK |
1706 | |
1707 | /* Split a list of declspecs and attributes into two. */ | |
1708 | ||
58782098 | 1709 | extern void split_specs_attrs PARAMS ((tree, tree *, tree *)); |
d9525bec BK |
1710 | |
1711 | /* Strip attributes from a list of combined specs and attrs. */ | |
1712 | ||
58782098 | 1713 | extern tree strip_attrs PARAMS ((tree)); |
d9525bec | 1714 | |
9c130398 DE |
1715 | /* Return 1 if an attribute and its arguments are valid for a decl or type. */ |
1716 | ||
58782098 | 1717 | extern int valid_machine_attribute PARAMS ((tree, tree, tree, tree)); |
9c130398 DE |
1718 | |
1719 | /* Given a tree node and a string, return non-zero if the tree node is | |
1720 | a valid attribute name for the string. */ | |
1721 | ||
58782098 | 1722 | extern int is_attribute_p PARAMS ((const char *, tree)); |
9c130398 DE |
1723 | |
1724 | /* Given an attribute name and a list of attributes, return the list element | |
1725 | of the attribute or NULL_TREE if not found. */ | |
1726 | ||
58782098 | 1727 | extern tree lookup_attribute PARAMS ((const char *, tree)); |
6cb3d314 DE |
1728 | |
1729 | /* Given two attributes lists, return a list of their union. */ | |
1730 | ||
58782098 | 1731 | extern tree merge_attributes PARAMS ((tree, tree)); |
9c130398 | 1732 | |
3932261a MM |
1733 | /* Given a type node TYPE and a TYPE_QUALIFIER_SET, return a type for |
1734 | the same kind of data as TYPE describes. Variants point to the | |
1735 | "main variant" (which has no qualifiers set) via TYPE_MAIN_VARIANT, | |
1736 | and it points to a chain of other variants so that duplicate | |
1737 | variants are never made. Only main variants should ever appear as | |
1738 | types of expressions. */ | |
1739 | ||
58782098 | 1740 | extern tree build_qualified_type PARAMS ((tree, int)); |
3932261a MM |
1741 | |
1742 | /* Like build_qualified_type, but only deals with the `const' and | |
1743 | `volatile' qualifiers. This interface is retained for backwards | |
1744 | compatiblity with the various front-ends; new code should use | |
1745 | build_qualified_type instead. */ | |
8da1b058 | 1746 | |
3932261a MM |
1747 | #define build_type_variant(TYPE, CONST_P, VOLATILE_P) \ |
1748 | build_qualified_type (TYPE, \ | |
1749 | ((CONST_P) ? TYPE_QUAL_CONST : 0) \ | |
1750 | | ((VOLATILE_P) ? TYPE_QUAL_VOLATILE : 0)) | |
8da1b058 | 1751 | |
43100b14 RS |
1752 | /* Make a copy of a type node. */ |
1753 | ||
58782098 | 1754 | extern tree build_type_copy PARAMS ((tree)); |
43100b14 | 1755 | |
8da1b058 | 1756 | /* Given a ..._TYPE node, calculate the TYPE_SIZE, TYPE_SIZE_UNIT, |
9328904c MM |
1757 | TYPE_ALIGN and TYPE_MODE fields. If called more than once on one |
1758 | node, does nothing except for the first time. */ | |
8da1b058 | 1759 | |
58782098 | 1760 | extern void layout_type PARAMS ((tree)); |
8da1b058 | 1761 | |
9328904c MM |
1762 | /* These functions allow a front-end to perform a manual layout of a |
1763 | RECORD_TYPE. (For instance, if the placement of subsequent fields | |
1764 | depends on the placement of fields so far.) Begin by calling | |
770ae6cc | 1765 | start_record_layout. Then, call place_field for each of the |
9328904c MM |
1766 | fields. Then, call finish_record_layout. See layout_type for the |
1767 | default way in which these functions are used. */ | |
1768 | ||
770ae6cc | 1769 | typedef struct record_layout_info |
9328904c MM |
1770 | { |
1771 | /* The RECORD_TYPE that we are laying out. */ | |
1772 | tree t; | |
770ae6cc RK |
1773 | /* The offset into the record so far, in bytes, not including bits in |
1774 | BITPOS. */ | |
1775 | tree offset; | |
1776 | /* The last known alignment of SIZE. */ | |
1777 | unsigned int offset_align; | |
1778 | /* The bit position within the last OFFSET_ALIGN bits, in bits. */ | |
1779 | tree bitpos; | |
9328904c MM |
1780 | /* The alignment of the record so far, in bits. */ |
1781 | unsigned int record_align; | |
770ae6cc RK |
1782 | /* The alignment of the record so far, not including padding, in bits. */ |
1783 | unsigned int unpacked_align; | |
9328904c MM |
1784 | /* The static variables (i.e., class variables, as opposed to |
1785 | instance variables) encountered in T. */ | |
1786 | tree pending_statics; | |
9328904c | 1787 | int packed_maybe_necessary; |
770ae6cc | 1788 | } *record_layout_info; |
9328904c | 1789 | |
770ae6cc | 1790 | extern record_layout_info start_record_layout PARAMS ((tree)); |
f2704b9f RK |
1791 | extern tree bit_from_pos PARAMS ((tree, tree)); |
1792 | extern tree byte_from_pos PARAMS ((tree, tree)); | |
1793 | extern void pos_from_byte PARAMS ((tree *, tree *, unsigned int, | |
1794 | tree)); | |
1795 | extern void pos_from_bit PARAMS ((tree *, tree *, unsigned int, | |
1796 | tree)); | |
1797 | extern void normalize_offset PARAMS ((tree *, tree *, | |
1798 | unsigned int)); | |
770ae6cc RK |
1799 | extern tree rli_size_unit_so_far PARAMS ((record_layout_info)); |
1800 | extern tree rli_size_so_far PARAMS ((record_layout_info)); | |
1801 | extern void normalize_rli PARAMS ((record_layout_info)); | |
1802 | extern void place_field PARAMS ((record_layout_info, tree)); | |
65e14bf5 | 1803 | extern void compute_record_mode PARAMS ((tree)); |
770ae6cc | 1804 | extern void finish_record_layout PARAMS ((record_layout_info)); |
9328904c | 1805 | |
8da1b058 RS |
1806 | /* Given a hashcode and a ..._TYPE node (for which the hashcode was made), |
1807 | return a canonicalized ..._TYPE node, so that duplicates are not made. | |
1808 | How the hash code is computed is up to the caller, as long as any two | |
1809 | callers that could hash identical-looking type nodes agree. */ | |
1810 | ||
05bccae2 | 1811 | extern tree type_hash_canon PARAMS ((unsigned int, tree)); |
8da1b058 RS |
1812 | |
1813 | /* Given a VAR_DECL, PARM_DECL, RESULT_DECL or FIELD_DECL node, | |
1814 | calculates the DECL_SIZE, DECL_SIZE_UNIT, DECL_ALIGN and DECL_MODE | |
1815 | fields. Call this only once for any given decl node. | |
1816 | ||
1817 | Second argument is the boundary that this field can be assumed to | |
1818 | be starting at (in bits). Zero means it can be assumed aligned | |
1819 | on any boundary that may be needed. */ | |
1820 | ||
58782098 | 1821 | extern void layout_decl PARAMS ((tree, unsigned)); |
8da1b058 | 1822 | |
72c602fc RK |
1823 | /* Return the mode for data of a given size SIZE and mode class CLASS. |
1824 | If LIMIT is nonzero, then don't use modes bigger than MAX_FIXED_MODE_SIZE. | |
1825 | The value is BLKmode if no other mode is found. This is like | |
1826 | mode_for_size, but is passed a tree. */ | |
1827 | ||
1828 | extern enum machine_mode mode_for_size_tree PARAMS ((tree, enum mode_class, | |
1829 | int)); | |
1830 | ||
8da1b058 RS |
1831 | /* Return an expr equal to X but certainly not valid as an lvalue. */ |
1832 | ||
58782098 KG |
1833 | extern tree non_lvalue PARAMS ((tree)); |
1834 | extern tree pedantic_non_lvalue PARAMS ((tree)); | |
8da1b058 | 1835 | |
58782098 | 1836 | extern tree convert PARAMS ((tree, tree)); |
729a2125 | 1837 | extern unsigned int expr_align PARAMS ((tree)); |
58782098 KG |
1838 | extern tree size_in_bytes PARAMS ((tree)); |
1839 | extern HOST_WIDE_INT int_size_in_bytes PARAMS ((tree)); | |
665f2503 RK |
1840 | extern tree bit_position PARAMS ((tree)); |
1841 | extern HOST_WIDE_INT int_bit_position PARAMS ((tree)); | |
770ae6cc RK |
1842 | extern tree byte_position PARAMS ((tree)); |
1843 | extern HOST_WIDE_INT int_byte_position PARAMS ((tree)); | |
fed3cef0 RK |
1844 | |
1845 | /* Define data structures, macros, and functions for handling sizes | |
1846 | and the various types used to represent sizes. */ | |
1847 | ||
1848 | enum size_type_kind | |
1849 | { | |
1850 | SIZETYPE, /* Normal representation of sizes in bytes. */ | |
1851 | SSIZETYPE, /* Signed representation of sizes in bytes. */ | |
1852 | USIZETYPE, /* Unsigned representation of sizes in bytes. */ | |
1853 | BITSIZETYPE, /* Normal representation of sizes in bits. */ | |
1854 | SBITSIZETYPE, /* Signed representation of sizes in bits. */ | |
1855 | UBITSIZETYPE, /* Unsifgned representation of sizes in bits. */ | |
1856 | TYPE_KIND_LAST}; | |
1857 | ||
1858 | extern tree sizetype_tab[(int) TYPE_KIND_LAST]; | |
1859 | ||
1860 | #define sizetype sizetype_tab[(int) SIZETYPE] | |
1861 | #define bitsizetype sizetype_tab[(int) BITSIZETYPE] | |
1862 | #define ssizetype sizetype_tab[(int) SSIZETYPE] | |
1863 | #define usizetype sizetype_tab[(int) USIZETYPE] | |
1864 | #define sbitsizetype sizetype_tab[(int) SBITSIZETYPE] | |
1865 | #define ubitsizetype sizetype_tab[(int) UBITSIZETYPE] | |
1866 | ||
58782098 | 1867 | extern tree size_binop PARAMS ((enum tree_code, tree, tree)); |
fed3cef0 RK |
1868 | extern tree size_diffop PARAMS ((tree, tree)); |
1869 | extern tree size_int_wide PARAMS ((HOST_WIDE_INT, | |
1870 | enum size_type_kind)); | |
1871 | extern tree size_int_type_wide PARAMS ((HOST_WIDE_INT, tree)); | |
06ceef4e | 1872 | |
fed3cef0 RK |
1873 | #define size_int_type(L, T) size_int_type_wide ((HOST_WIDE_INT) (L), T) |
1874 | #define size_int(L) size_int_wide ((HOST_WIDE_INT) (L), SIZETYPE) | |
1875 | #define ssize_int(L) size_int_wide ((HOST_WIDE_INT) (L), SSIZETYPE) | |
1876 | #define bitsize_int(L) size_int_wide ((HOST_WIDE_INT) (L), BITSIZETYPE) | |
1877 | #define sbitsize_int(L) size_int_wide ((HOST_WIDE_INT) (L), SBITSIZETYPE) | |
f8dac6eb | 1878 | |
58782098 KG |
1879 | extern tree round_up PARAMS ((tree, int)); |
1880 | extern tree get_pending_sizes PARAMS ((void)); | |
1881 | extern void put_pending_sizes PARAMS ((tree)); | |
8da1b058 RS |
1882 | |
1883 | /* Type for sizes of data-type. */ | |
1884 | ||
f8dac6eb R |
1885 | #define BITS_PER_UNIT_LOG \ |
1886 | ((BITS_PER_UNIT > 1) + (BITS_PER_UNIT > 2) + (BITS_PER_UNIT > 4) \ | |
1887 | + (BITS_PER_UNIT > 8) + (BITS_PER_UNIT > 16) + (BITS_PER_UNIT > 32) \ | |
1888 | + (BITS_PER_UNIT > 64) + (BITS_PER_UNIT > 128) + (BITS_PER_UNIT > 256)) | |
1889 | ||
8294accf | 1890 | /* If nonzero, an upper limit on alignment of structure fields, in bits. */ |
729a2125 | 1891 | extern unsigned int maximum_field_alignment; |
8294accf | 1892 | |
abc95ed3 | 1893 | /* If non-zero, the alignment of a bitstring or (power-)set value, in bits. */ |
729a2125 | 1894 | extern unsigned int set_alignment; |
8294accf | 1895 | |
8da1b058 RS |
1896 | /* Concatenate two lists (chains of TREE_LIST nodes) X and Y |
1897 | by making the last node in X point to Y. | |
1898 | Returns X, except if X is 0 returns Y. */ | |
1899 | ||
58782098 | 1900 | extern tree chainon PARAMS ((tree, tree)); |
8da1b058 RS |
1901 | |
1902 | /* Make a new TREE_LIST node from specified PURPOSE, VALUE and CHAIN. */ | |
1903 | ||
58782098 KG |
1904 | extern tree tree_cons PARAMS ((tree, tree, tree)); |
1905 | extern tree perm_tree_cons PARAMS ((tree, tree, tree)); | |
1906 | extern tree temp_tree_cons PARAMS ((tree, tree, tree)); | |
1907 | extern tree saveable_tree_cons PARAMS ((tree, tree, tree)); | |
1908 | extern tree decl_tree_cons PARAMS ((tree, tree, tree)); | |
1909 | extern tree expr_tree_cons PARAMS ((tree, tree, tree)); | |
8da1b058 RS |
1910 | |
1911 | /* Return the last tree node in a chain. */ | |
1912 | ||
58782098 | 1913 | extern tree tree_last PARAMS ((tree)); |
8da1b058 RS |
1914 | |
1915 | /* Reverse the order of elements in a chain, and return the new head. */ | |
1916 | ||
58782098 | 1917 | extern tree nreverse PARAMS ((tree)); |
8da1b058 RS |
1918 | |
1919 | /* Returns the length of a chain of nodes | |
1920 | (number of chain pointers to follow before reaching a null pointer). */ | |
1921 | ||
58782098 | 1922 | extern int list_length PARAMS ((tree)); |
8da1b058 | 1923 | |
c3b247b4 JM |
1924 | /* Returns the number of FIELD_DECLs in a type. */ |
1925 | ||
1926 | extern int fields_length PARAMS ((tree)); | |
1927 | ||
8da1b058 RS |
1928 | /* integer_zerop (tree x) is nonzero if X is an integer constant of value 0 */ |
1929 | ||
58782098 | 1930 | extern int integer_zerop PARAMS ((tree)); |
8da1b058 RS |
1931 | |
1932 | /* integer_onep (tree x) is nonzero if X is an integer constant of value 1 */ | |
1933 | ||
58782098 | 1934 | extern int integer_onep PARAMS ((tree)); |
8da1b058 RS |
1935 | |
1936 | /* integer_all_onesp (tree x) is nonzero if X is an integer constant | |
1937 | all of whose significant bits are 1. */ | |
1938 | ||
58782098 | 1939 | extern int integer_all_onesp PARAMS ((tree)); |
8da1b058 RS |
1940 | |
1941 | /* integer_pow2p (tree x) is nonzero is X is an integer constant with | |
1942 | exactly one bit 1. */ | |
1943 | ||
58782098 | 1944 | extern int integer_pow2p PARAMS ((tree)); |
8da1b058 RS |
1945 | |
1946 | /* staticp (tree x) is nonzero if X is a reference to data allocated | |
1947 | at a fixed address in memory. */ | |
1948 | ||
58782098 | 1949 | extern int staticp PARAMS ((tree)); |
8da1b058 RS |
1950 | |
1951 | /* Gets an error if argument X is not an lvalue. | |
1952 | Also returns 1 if X is an lvalue, 0 if not. */ | |
1953 | ||
58782098 | 1954 | extern int lvalue_or_else PARAMS ((tree, const char *)); |
8da1b058 RS |
1955 | |
1956 | /* save_expr (EXP) returns an expression equivalent to EXP | |
1957 | but it can be used multiple times within context CTX | |
1958 | and only evaluate EXP once. */ | |
1959 | ||
58782098 | 1960 | extern tree save_expr PARAMS ((tree)); |
8da1b058 | 1961 | |
b7f6588d JM |
1962 | /* Returns the index of the first non-tree operand for CODE, or the number |
1963 | of operands if all are trees. */ | |
1964 | ||
58782098 | 1965 | extern int first_rtl_op PARAMS ((enum tree_code)); |
b7f6588d | 1966 | |
679163cf | 1967 | /* unsave_expr (EXP) returns an expression equivalent to EXP but it |
582db8e4 | 1968 | can be used multiple times and will evaluate EXP in its entirety |
679163cf MS |
1969 | each time. */ |
1970 | ||
58782098 | 1971 | extern tree unsave_expr PARAMS ((tree)); |
679163cf | 1972 | |
582db8e4 MM |
1973 | /* Reset EXP in place so that it can be expaned again. Does not |
1974 | recurse into subtrees. */ | |
1975 | ||
58782098 | 1976 | extern void unsave_expr_1 PARAMS ((tree)); |
582db8e4 MM |
1977 | |
1978 | /* Like unsave_expr_1, but recurses into all subtrees. */ | |
679163cf | 1979 | |
58782098 | 1980 | extern tree unsave_expr_now PARAMS ((tree)); |
679163cf | 1981 | |
582db8e4 MM |
1982 | /* If non-null, these are language-specific helper functions for |
1983 | unsave_expr_now. If present, LANG_UNSAVE is called before its | |
1984 | argument (an UNSAVE_EXPR) is to be unsaved, and all other | |
1985 | processing in unsave_expr_now is aborted. LANG_UNSAVE_EXPR_NOW is | |
1986 | called from unsave_expr_1 for language-specific tree codes. */ | |
58782098 KG |
1987 | extern void (*lang_unsave) PARAMS ((tree *)); |
1988 | extern void (*lang_unsave_expr_now) PARAMS ((tree)); | |
0a818f84 | 1989 | |
194c7c45 RH |
1990 | /* Return 0 if it is safe to evaluate EXPR multiple times, |
1991 | return 1 if it is safe if EXPR is unsaved afterward, or | |
1992 | return 2 if it is completely unsafe. */ | |
1993 | extern int unsafe_for_reeval PARAMS ((tree)); | |
8c57aea6 | 1994 | |
7380d707 RK |
1995 | /* Return 1 if EXP contains a PLACEHOLDER_EXPR; i.e., if it represents a size |
1996 | or offset that depends on a field within a record. | |
1997 | ||
1998 | Note that we only allow such expressions within simple arithmetic | |
1999 | or a COND_EXPR. */ | |
2000 | ||
58782098 | 2001 | extern int contains_placeholder_p PARAMS ((tree)); |
7380d707 | 2002 | |
b7f6588d JM |
2003 | /* Return 1 if EXP contains any expressions that produce cleanups for an |
2004 | outer scope to deal with. Used by fold. */ | |
2005 | ||
58782098 | 2006 | extern int has_cleanups PARAMS ((tree)); |
b7f6588d | 2007 | |
7380d707 RK |
2008 | /* Given a tree EXP, a FIELD_DECL F, and a replacement value R, |
2009 | return a tree with all occurrences of references to F in a | |
2010 | PLACEHOLDER_EXPR replaced by R. Note that we assume here that EXP | |
2011 | contains only arithmetic expressions. */ | |
2012 | ||
58782098 | 2013 | extern tree substitute_in_expr PARAMS ((tree, tree, tree)); |
7380d707 | 2014 | |
90ca31be RS |
2015 | /* variable_size (EXP) is like save_expr (EXP) except that it |
2016 | is for the special case of something that is part of a | |
2017 | variable size for a data type. It makes special arrangements | |
2018 | to compute the value at the right time when the data type | |
2019 | belongs to a function parameter. */ | |
2020 | ||
58782098 | 2021 | extern tree variable_size PARAMS ((tree)); |
90ca31be | 2022 | |
8da1b058 RS |
2023 | /* stabilize_reference (EXP) returns an reference equivalent to EXP |
2024 | but it can be used multiple times | |
2025 | and only evaluate the subexpressions once. */ | |
2026 | ||
58782098 | 2027 | extern tree stabilize_reference PARAMS ((tree)); |
8da1b058 | 2028 | |
1c8b10bb RK |
2029 | /* Subroutine of stabilize_reference; this is called for subtrees of |
2030 | references. Any expression with side-effects must be put in a SAVE_EXPR | |
2031 | to ensure that it is only evaluated once. */ | |
2032 | ||
58782098 | 2033 | extern tree stabilize_reference_1 PARAMS ((tree)); |
1c8b10bb | 2034 | |
8da1b058 RS |
2035 | /* Return EXP, stripped of any conversions to wider types |
2036 | in such a way that the result of converting to type FOR_TYPE | |
2037 | is the same as if EXP were converted to FOR_TYPE. | |
2038 | If FOR_TYPE is 0, it signifies EXP's type. */ | |
2039 | ||
58782098 | 2040 | extern tree get_unwidened PARAMS ((tree, tree)); |
8da1b058 RS |
2041 | |
2042 | /* Return OP or a simpler expression for a narrower value | |
2043 | which can be sign-extended or zero-extended to give back OP. | |
2044 | Store in *UNSIGNEDP_PTR either 1 if the value should be zero-extended | |
2045 | or 0 if the value should be sign-extended. */ | |
2046 | ||
58782098 | 2047 | extern tree get_narrower PARAMS ((tree, int *)); |
8da1b058 RS |
2048 | |
2049 | /* Given MODE and UNSIGNEDP, return a suitable type-tree | |
2050 | with that mode. | |
2051 | The definition of this resides in language-specific code | |
2052 | as the repertoire of available types may vary. */ | |
2053 | ||
58782098 | 2054 | extern tree type_for_mode PARAMS ((enum machine_mode, int)); |
8da1b058 RS |
2055 | |
2056 | /* Given PRECISION and UNSIGNEDP, return a suitable type-tree | |
2057 | for an integer type with at least that precision. | |
2058 | The definition of this resides in language-specific code | |
2059 | as the repertoire of available types may vary. */ | |
2060 | ||
58782098 | 2061 | extern tree type_for_size PARAMS ((unsigned, int)); |
8da1b058 RS |
2062 | |
2063 | /* Given an integer type T, return a type like T but unsigned. | |
2064 | If T is unsigned, the value is T. | |
2065 | The definition of this resides in language-specific code | |
2066 | as the repertoire of available types may vary. */ | |
2067 | ||
58782098 | 2068 | extern tree unsigned_type PARAMS ((tree)); |
8da1b058 RS |
2069 | |
2070 | /* Given an integer type T, return a type like T but signed. | |
2071 | If T is signed, the value is T. | |
2072 | The definition of this resides in language-specific code | |
2073 | as the repertoire of available types may vary. */ | |
2074 | ||
58782098 | 2075 | extern tree signed_type PARAMS ((tree)); |
8da1b058 RS |
2076 | |
2077 | /* This function must be defined in the language-specific files. | |
2078 | expand_expr calls it to build the cleanup-expression for a TARGET_EXPR. | |
2079 | This is defined in a language-specific file. */ | |
2080 | ||
58782098 | 2081 | extern tree maybe_build_cleanup PARAMS ((tree)); |
8da1b058 RS |
2082 | |
2083 | /* Given an expression EXP that may be a COMPONENT_REF or an ARRAY_REF, | |
2084 | look for nested component-refs or array-refs at constant positions | |
2085 | and find the ultimate containing object, which is returned. */ | |
2086 | ||
770ae6cc RK |
2087 | extern tree get_inner_reference PARAMS ((tree, HOST_WIDE_INT *, |
2088 | HOST_WIDE_INT *, tree *, | |
2089 | enum machine_mode *, int *, | |
2090 | int *, unsigned int *)); | |
8da1b058 | 2091 | |
140b60b4 MM |
2092 | /* Given a DECL or TYPE, return the scope in which it was declared, or |
2093 | NUL_TREE if there is no containing scope. */ | |
2094 | ||
58782098 | 2095 | extern tree get_containing_scope PARAMS ((tree)); |
140b60b4 | 2096 | |
8da1b058 RS |
2097 | /* Return the FUNCTION_DECL which provides this _DECL with its context, |
2098 | or zero if none. */ | |
58782098 | 2099 | extern tree decl_function_context PARAMS ((tree)); |
8da1b058 | 2100 | |
3635a54b RK |
2101 | /* Return the RECORD_TYPE, UNION_TYPE, or QUAL_UNION_TYPE which provides |
2102 | this _DECL with its context, or zero if none. */ | |
58782098 | 2103 | extern tree decl_type_context PARAMS ((tree)); |
8da1b058 RS |
2104 | |
2105 | /* Given the FUNCTION_DECL for the current function, | |
2106 | return zero if it is ok for this function to be inline. | |
2107 | Otherwise return a warning message with a single %s | |
2108 | for the function's name. */ | |
2109 | ||
58782098 | 2110 | extern const char *function_cannot_inline_p PARAMS ((tree)); |
a3c11cd3 JW |
2111 | |
2112 | /* Return 1 if EXPR is the real constant zero. */ | |
58782098 | 2113 | extern int real_zerop PARAMS ((tree)); |
8da1b058 RS |
2114 | \f |
2115 | /* Declare commonly used variables for tree structure. */ | |
2116 | ||
8da1b058 RS |
2117 | /* Points to the name of the input file from which the current input |
2118 | being parsed originally came (before it went into cpp). */ | |
2119 | extern char *input_filename; | |
2120 | ||
2121 | /* Current line number in input file. */ | |
2122 | extern int lineno; | |
2123 | ||
2124 | /* Nonzero for -pedantic switch: warn about anything | |
2125 | that standard C forbids. */ | |
2126 | extern int pedantic; | |
2127 | ||
4812480a JM |
2128 | /* Nonzero means lvalues are limited to those valid in pedantic ANSI C. |
2129 | Zero means allow extended lvalues. */ | |
2130 | ||
2131 | extern int pedantic_lvalues; | |
2132 | ||
8da1b058 RS |
2133 | /* Nonzero means can safely call expand_expr now; |
2134 | otherwise layout_type puts variable sizes onto `pending_sizes' instead. */ | |
2135 | ||
2136 | extern int immediate_size_expand; | |
2137 | ||
2138 | /* Points to the FUNCTION_DECL of the function whose body we are reading. */ | |
2139 | ||
2140 | extern tree current_function_decl; | |
2141 | ||
00262c8a ML |
2142 | /* Nonzero means a FUNC_BEGIN label was emitted. */ |
2143 | extern tree current_function_func_begin_label; | |
2144 | ||
8da1b058 RS |
2145 | /* Nonzero means all ..._TYPE nodes should be allocated permanently. */ |
2146 | ||
2147 | extern int all_types_permanent; | |
2148 | ||
a1d7ffe3 JM |
2149 | /* Pointer to function to compute the name to use to print a declaration. |
2150 | DECL is the declaration in question. | |
2151 | VERBOSITY determines what information will be printed: | |
2152 | 0: DECL_NAME, demangled as necessary. | |
2153 | 1: and scope information. | |
2154 | 2: and any other information that might be interesting, such as function | |
2155 | parameter types in C++. */ | |
2156 | ||
58782098 | 2157 | extern const char *(*decl_printable_name) PARAMS ((tree, int)); |
dc437e16 RS |
2158 | |
2159 | /* Pointer to function to finish handling an incomplete decl at the | |
2160 | end of compilation. */ | |
2161 | ||
58782098 | 2162 | extern void (*incomplete_decl_finalize_hook) PARAMS ((tree)); |
f425a887 | 2163 | |
58782098 KG |
2164 | extern char *init_parse PARAMS ((char *)); |
2165 | extern void finish_parse PARAMS ((void)); | |
f425a887 | 2166 | |
26db82d8 BS |
2167 | extern const char * const language_string; |
2168 | ||
2169 | /* Declare a predefined function. Return the declaration. This function is | |
2170 | provided by each language frontend. */ | |
58782098 | 2171 | extern tree builtin_function PARAMS ((const char *, tree, int, |
26db82d8 BS |
2172 | enum built_in_class, |
2173 | const char *)); | |
8da1b058 | 2174 | \f |
143f1945 | 2175 | /* In tree.c */ |
58782098 KG |
2176 | extern char *perm_calloc PARAMS ((int, long)); |
2177 | extern tree get_file_function_name PARAMS ((int)); | |
2178 | extern tree get_file_function_name_long PARAMS ((const char *)); | |
2179 | extern tree get_set_constructor_bits PARAMS ((tree, char *, int)); | |
2180 | extern tree get_set_constructor_bytes PARAMS ((tree, | |
0f41302f | 2181 | unsigned char *, int)); |
58782098 KG |
2182 | extern int get_alias_set PARAMS ((tree)); |
2183 | extern int new_alias_set PARAMS ((void)); | |
2184 | extern int (*lang_get_alias_set) PARAMS ((tree)); | |
2185 | extern tree get_callee_fndecl PARAMS ((tree)); | |
143f1945 | 2186 | \f |
8da1b058 RS |
2187 | /* In stmt.c */ |
2188 | ||
58782098 KG |
2189 | extern int in_control_zone_p PARAMS ((void)); |
2190 | extern void expand_fixups PARAMS ((struct rtx_def *)); | |
2191 | extern tree expand_start_stmt_expr PARAMS ((void)); | |
2192 | extern tree expand_end_stmt_expr PARAMS ((tree)); | |
2193 | extern void expand_expr_stmt PARAMS ((tree)); | |
2194 | extern int warn_if_unused_value PARAMS ((tree)); | |
2195 | extern void expand_decl_init PARAMS ((tree)); | |
2196 | extern void clear_last_expr PARAMS ((void)); | |
2197 | extern void expand_label PARAMS ((tree)); | |
2198 | extern void expand_goto PARAMS ((tree)); | |
2199 | extern void expand_asm PARAMS ((tree)); | |
2200 | extern void expand_start_cond PARAMS ((tree, int)); | |
2201 | extern void expand_end_cond PARAMS ((void)); | |
2202 | extern void expand_start_else PARAMS ((void)); | |
2203 | extern void expand_start_elseif PARAMS ((tree)); | |
2204 | extern struct nesting *expand_start_loop PARAMS ((int)); | |
2205 | extern struct nesting *expand_start_loop_continue_elsewhere PARAMS ((int)); | |
2206 | extern void expand_loop_continue_here PARAMS ((void)); | |
2207 | extern void expand_end_loop PARAMS ((void)); | |
2208 | extern int expand_continue_loop PARAMS ((struct nesting *)); | |
2209 | extern int expand_exit_loop PARAMS ((struct nesting *)); | |
2210 | extern int expand_exit_loop_if_false PARAMS ((struct nesting *, | |
d6b12657 | 2211 | tree)); |
58782098 | 2212 | extern int expand_exit_something PARAMS ((void)); |
f837a861 | 2213 | |
58782098 KG |
2214 | extern void expand_null_return PARAMS ((void)); |
2215 | extern void expand_return PARAMS ((tree)); | |
2216 | extern int optimize_tail_recursion PARAMS ((tree, struct rtx_def *)); | |
2217 | extern void expand_start_bindings_and_block PARAMS ((int, tree)); | |
a97901e6 MM |
2218 | #define expand_start_bindings(flags) \ |
2219 | expand_start_bindings_and_block(flags, NULL_TREE) | |
58782098 KG |
2220 | extern void expand_end_bindings PARAMS ((tree, int, int)); |
2221 | extern void warn_about_unused_variables PARAMS ((tree)); | |
2222 | extern void start_cleanup_deferral PARAMS ((void)); | |
2223 | extern void end_cleanup_deferral PARAMS ((void)); | |
deb5e280 JM |
2224 | extern int is_body_block PARAMS ((tree)); |
2225 | ||
58782098 KG |
2226 | extern void mark_block_as_eh_region PARAMS ((void)); |
2227 | extern void mark_block_as_not_eh_region PARAMS ((void)); | |
2228 | extern int is_eh_region PARAMS ((void)); | |
2229 | extern int conditional_context PARAMS ((void)); | |
2230 | extern tree last_cleanup_this_contour PARAMS ((void)); | |
2231 | extern int expand_dhc_cleanup PARAMS ((tree)); | |
2232 | extern int expand_dcc_cleanup PARAMS ((tree)); | |
2233 | extern void expand_start_case PARAMS ((int, tree, tree, | |
dff01034 | 2234 | const char *)); |
58782098 KG |
2235 | extern void expand_end_case PARAMS ((tree)); |
2236 | extern int pushcase PARAMS ((tree, | |
d6b12657 RK |
2237 | tree (*) (tree, tree), |
2238 | tree, tree *)); | |
58782098 | 2239 | extern int pushcase_range PARAMS ((tree, tree, |
d6b12657 RK |
2240 | tree (*) (tree, tree), |
2241 | tree, tree *)); | |
58782098 KG |
2242 | extern void using_eh_for_cleanups PARAMS ((void)); |
2243 | extern int stmt_loop_nest_empty PARAMS ((void)); | |
8da1b058 RS |
2244 | |
2245 | /* In fold-const.c */ | |
2246 | ||
4b63dccb RK |
2247 | /* Fold constants as much as possible in an expression. |
2248 | Returns the simplified expression. | |
2249 | Acts only on the top level of the expression; | |
2250 | if the argument itself cannot be simplified, its | |
2251 | subexpressions are not changed. */ | |
2252 | ||
58782098 | 2253 | extern tree fold PARAMS ((tree)); |
4b63dccb | 2254 | |
58782098 | 2255 | extern int force_fit_type PARAMS ((tree, int)); |
05bccae2 RK |
2256 | extern int add_double PARAMS ((unsigned HOST_WIDE_INT, HOST_WIDE_INT, |
2257 | unsigned HOST_WIDE_INT, HOST_WIDE_INT, | |
2258 | unsigned HOST_WIDE_INT *, | |
2259 | HOST_WIDE_INT *)); | |
2260 | extern int neg_double PARAMS ((unsigned HOST_WIDE_INT, HOST_WIDE_INT, | |
2261 | unsigned HOST_WIDE_INT *, | |
2262 | HOST_WIDE_INT *)); | |
2263 | extern int mul_double PARAMS ((unsigned HOST_WIDE_INT, | |
2264 | HOST_WIDE_INT, | |
2265 | unsigned HOST_WIDE_INT, HOST_WIDE_INT, | |
2266 | unsigned HOST_WIDE_INT *, | |
2267 | HOST_WIDE_INT *)); | |
2268 | extern void lshift_double PARAMS ((unsigned HOST_WIDE_INT, HOST_WIDE_INT, | |
2269 | HOST_WIDE_INT, unsigned int, | |
2270 | unsigned HOST_WIDE_INT *, | |
2271 | HOST_WIDE_INT *, int)); | |
2272 | extern void rshift_double PARAMS ((unsigned HOST_WIDE_INT, HOST_WIDE_INT, | |
2273 | HOST_WIDE_INT, unsigned int, | |
2274 | unsigned HOST_WIDE_INT *, | |
2275 | HOST_WIDE_INT *, int)); | |
2276 | extern void lrotate_double PARAMS ((unsigned HOST_WIDE_INT, HOST_WIDE_INT, | |
2277 | HOST_WIDE_INT, unsigned int, | |
2278 | unsigned HOST_WIDE_INT *, | |
2279 | HOST_WIDE_INT *)); | |
2280 | extern void rrotate_double PARAMS ((unsigned HOST_WIDE_INT, HOST_WIDE_INT, | |
2281 | HOST_WIDE_INT, unsigned int, | |
2282 | unsigned HOST_WIDE_INT *, | |
2283 | HOST_WIDE_INT *)); | |
58782098 KG |
2284 | extern int operand_equal_p PARAMS ((tree, tree, int)); |
2285 | extern tree invert_truthvalue PARAMS ((tree)); | |
c530479e RH |
2286 | |
2287 | /* In builtins.c. Given a type, apply default promotions wrt unnamed | |
2288 | function arguments and return the new type. Return NULL_TREE if no | |
2289 | change. Required by any language that supports variadic arguments. */ | |
2290 | ||
58782098 | 2291 | extern tree (*lang_type_promotes_to) PARAMS ((tree)); |
8da1b058 | 2292 | \f |
956d6950 JL |
2293 | /* Interface of the DWARF2 unwind info support. */ |
2294 | ||
2295 | /* Decide whether we want to emit frame unwind information for the current | |
2296 | translation unit. */ | |
2297 | ||
58782098 | 2298 | extern int dwarf2out_do_frame PARAMS ((void)); |
956d6950 JL |
2299 | |
2300 | /* Generate a new label for the CFI info to refer to. */ | |
2301 | ||
58782098 | 2302 | extern char *dwarf2out_cfi_label PARAMS ((void)); |
956d6950 JL |
2303 | |
2304 | /* Entry point to update the canonical frame address (CFA). */ | |
2305 | ||
58782098 | 2306 | extern void dwarf2out_def_cfa PARAMS ((char *, unsigned, long)); |
956d6950 JL |
2307 | |
2308 | /* Add the CFI for saving a register window. */ | |
2309 | ||
58782098 | 2310 | extern void dwarf2out_window_save PARAMS ((char *)); |
956d6950 JL |
2311 | |
2312 | /* Add a CFI to update the running total of the size of arguments pushed | |
2313 | onto the stack. */ | |
2314 | ||
58782098 | 2315 | extern void dwarf2out_args_size PARAMS ((char *, long)); |
956d6950 JL |
2316 | |
2317 | /* Entry point for saving a register to the stack. */ | |
2318 | ||
58782098 | 2319 | extern void dwarf2out_reg_save PARAMS ((char *, unsigned, long)); |
956d6950 JL |
2320 | |
2321 | /* Entry point for saving the return address in the stack. */ | |
2322 | ||
58782098 | 2323 | extern void dwarf2out_return_save PARAMS ((char *, long)); |
956d6950 JL |
2324 | |
2325 | /* Entry point for saving the return address in a register. */ | |
2326 | ||
58782098 | 2327 | extern void dwarf2out_return_reg PARAMS ((char *, unsigned)); |
956d6950 JL |
2328 | |
2329 | /* Output a marker (i.e. a label) for the beginning of a function, before | |
2330 | the prologue. */ | |
2331 | ||
58782098 | 2332 | extern void dwarf2out_begin_prologue PARAMS ((void)); |
956d6950 JL |
2333 | |
2334 | /* Output a marker (i.e. a label) for the absolute end of the generated | |
2335 | code for a function definition. */ | |
2336 | ||
58782098 | 2337 | extern void dwarf2out_end_epilogue PARAMS ((void)); |
956d6950 | 2338 | \f |
8da1b058 RS |
2339 | /* The language front-end must define these functions. */ |
2340 | ||
b53beeb2 | 2341 | /* Function of no arguments for initializing options. */ |
58782098 | 2342 | extern void lang_init_options PARAMS ((void)); |
b53beeb2 | 2343 | |
8da1b058 | 2344 | /* Function of no arguments for initializing lexical scanning. */ |
58782098 | 2345 | extern void init_lex PARAMS ((void)); |
8da1b058 | 2346 | /* Function of no arguments for initializing the symbol table. */ |
58782098 | 2347 | extern void init_decl_processing PARAMS ((void)); |
8da1b058 RS |
2348 | |
2349 | /* Functions called with no arguments at the beginning and end or processing | |
2350 | the input source file. */ | |
58782098 KG |
2351 | extern void lang_init PARAMS ((void)); |
2352 | extern void lang_finish PARAMS ((void)); | |
8da1b058 | 2353 | |
9faa82d8 | 2354 | /* Function to identify which front-end produced the output file. */ |
58782098 | 2355 | extern const char *lang_identify PARAMS ((void)); |
c9591059 KG |
2356 | |
2357 | /* Called by report_error_function to print out function name. | |
2358 | * Default may be overridden by language front-ends. */ | |
58782098 | 2359 | extern void (*print_error_function) PARAMS ((const char *)); |
d0d4af87 | 2360 | |
78b099bd | 2361 | /* Function to replace the DECL_LANG_SPECIFIC field of a DECL with a copy. */ |
58782098 | 2362 | extern void copy_lang_decl PARAMS ((tree)); |
78b099bd | 2363 | |
8da1b058 | 2364 | /* Function called with no arguments to parse and compile the input. */ |
58782098 | 2365 | extern int yyparse PARAMS ((void)); |
8da1b058 RS |
2366 | /* Function called with option as argument |
2367 | to decode options starting with -f or -W or +. | |
2368 | It should return nonzero if it handles the option. */ | |
58782098 | 2369 | extern int lang_decode_option PARAMS ((int, char **)); |
8da1b058 RS |
2370 | |
2371 | /* Functions for processing symbol declarations. */ | |
2372 | /* Function to enter a new lexical scope. | |
2373 | Takes one argument: always zero when called from outside the front end. */ | |
58782098 | 2374 | extern void pushlevel PARAMS ((int)); |
8da1b058 RS |
2375 | /* Function to exit a lexical scope. It returns a BINDING for that scope. |
2376 | Takes three arguments: | |
2377 | KEEP -- nonzero if there were declarations in this scope. | |
2378 | REVERSE -- reverse the order of decls before returning them. | |
2379 | FUNCTIONBODY -- nonzero if this level is the body of a function. */ | |
58782098 | 2380 | extern tree poplevel PARAMS ((int, int, int)); |
69b78d8d | 2381 | /* Set the BLOCK node for the current scope level. */ |
58782098 | 2382 | extern void set_block PARAMS ((tree)); |
8da1b058 RS |
2383 | /* Function to add a decl to the current scope level. |
2384 | Takes one argument, a decl to add. | |
2385 | Returns that decl, or, if the same symbol is already declared, may | |
2386 | return a different decl for that name. */ | |
58782098 | 2387 | extern tree pushdecl PARAMS ((tree)); |
8da1b058 | 2388 | /* Function to return the chain of decls so far in the current scope level. */ |
58782098 | 2389 | extern tree getdecls PARAMS ((void)); |
8da1b058 | 2390 | /* Function to return the chain of structure tags in the current scope level. */ |
58782098 | 2391 | extern tree gettags PARAMS ((void)); |
a3c11cd3 | 2392 | |
58782098 | 2393 | extern tree build_range_type PARAMS ((tree, tree, tree)); |
a3c11cd3 JW |
2394 | |
2395 | /* Call when starting to parse a declaration: | |
2396 | make expressions in the declaration last the length of the function. | |
2397 | Returns an argument that should be passed to resume_momentary later. */ | |
58782098 | 2398 | extern int suspend_momentary PARAMS ((void)); |
a3c11cd3 | 2399 | |
58782098 | 2400 | extern int allocation_temporary_p PARAMS ((void)); |
a3c11cd3 JW |
2401 | |
2402 | /* Call when finished parsing a declaration: | |
2403 | restore the treatment of node-allocation that was | |
2404 | in effect before the suspension. | |
2405 | YES should be the value previously returned by suspend_momentary. */ | |
58782098 | 2406 | extern void resume_momentary PARAMS ((int)); |
a3c11cd3 JW |
2407 | |
2408 | /* Called after finishing a record, union or enumeral type. */ | |
58782098 | 2409 | extern void rest_of_type_compilation PARAMS ((tree, int)); |
a3c11cd3 JW |
2410 | |
2411 | /* Save the current set of obstacks, but don't change them. */ | |
58782098 | 2412 | extern void push_obstacks_nochange PARAMS ((void)); |
a3c11cd3 | 2413 | |
58782098 | 2414 | extern void permanent_allocation PARAMS ((int)); |
96bcb120 | 2415 | |
58782098 | 2416 | extern void push_momentary PARAMS ((void)); |
a3c11cd3 | 2417 | |
58782098 | 2418 | extern void clear_momentary PARAMS ((void)); |
a3c11cd3 | 2419 | |
58782098 | 2420 | extern void pop_momentary PARAMS ((void)); |
a3c11cd3 | 2421 | |
58782098 | 2422 | extern void end_temporary_allocation PARAMS ((void)); |
a3c11cd3 JW |
2423 | |
2424 | /* Pop the obstack selection stack. */ | |
58782098 | 2425 | extern void pop_obstacks PARAMS ((void)); |
92cbe4d2 | 2426 | |
a1d061a1 | 2427 | /* In tree.c */ |
58782098 KG |
2428 | extern int really_constant_p PARAMS ((tree)); |
2429 | extern void push_obstacks PARAMS ((struct obstack *, | |
a1d061a1 | 2430 | struct obstack *)); |
58782098 KG |
2431 | extern void pop_momentary_nofree PARAMS ((void)); |
2432 | extern void preserve_momentary PARAMS ((void)); | |
2433 | extern void saveable_allocation PARAMS ((void)); | |
2434 | extern void temporary_allocation PARAMS ((void)); | |
2435 | extern void resume_temporary_allocation PARAMS ((void)); | |
2436 | extern tree get_file_function_name PARAMS ((int)); | |
2437 | extern void set_identifier_size PARAMS ((int)); | |
2438 | extern int int_fits_type_p PARAMS ((tree, tree)); | |
2439 | extern int tree_log2 PARAMS ((tree)); | |
05bccae2 | 2440 | extern int tree_floor_log2 PARAMS ((tree)); |
58782098 KG |
2441 | extern void preserve_initializer PARAMS ((void)); |
2442 | extern void preserve_data PARAMS ((void)); | |
2443 | extern int object_permanent_p PARAMS ((tree)); | |
2444 | extern int type_precision PARAMS ((tree)); | |
2445 | extern int simple_cst_equal PARAMS ((tree, tree)); | |
05bccae2 | 2446 | extern int compare_tree_int PARAMS ((tree, unsigned int)); |
58782098 KG |
2447 | extern int type_list_equal PARAMS ((tree, tree)); |
2448 | extern int chain_member PARAMS ((tree, tree)); | |
2449 | extern int chain_member_purpose PARAMS ((tree, tree)); | |
2450 | extern int chain_member_value PARAMS ((tree, tree)); | |
2451 | extern tree listify PARAMS ((tree)); | |
05bccae2 RK |
2452 | extern tree type_hash_lookup PARAMS ((unsigned int, tree)); |
2453 | extern void type_hash_add PARAMS ((unsigned int, tree)); | |
2454 | extern unsigned int type_hash_list PARAMS ((tree)); | |
58782098 KG |
2455 | extern int simple_cst_list_equal PARAMS ((tree, tree)); |
2456 | extern void debug_obstack PARAMS ((char *)); | |
2457 | extern void rtl_in_current_obstack PARAMS ((void)); | |
2458 | extern void rtl_in_saveable_obstack PARAMS ((void)); | |
2459 | extern void init_tree_codes PARAMS ((void)); | |
2460 | extern void dump_tree_statistics PARAMS ((void)); | |
2461 | extern void print_obstack_statistics PARAMS ((const char *, | |
37b37199 | 2462 | struct obstack *)); |
a1d061a1 | 2463 | #ifdef BUFSIZ |
58782098 | 2464 | extern void print_obstack_name PARAMS ((char *, FILE *, const char *)); |
a1d061a1 | 2465 | #endif |
58782098 KG |
2466 | extern void expand_function_end PARAMS ((char *, int, int)); |
2467 | extern void expand_function_start PARAMS ((tree, int)); | |
2468 | extern int real_onep PARAMS ((tree)); | |
2469 | extern int real_twop PARAMS ((tree)); | |
2470 | extern void start_identifier_warnings PARAMS ((void)); | |
2471 | extern void gcc_obstack_init PARAMS ((struct obstack *)); | |
2472 | extern void init_obstacks PARAMS ((void)); | |
2473 | extern void obfree PARAMS ((char *)); | |
2474 | extern void build_common_tree_nodes PARAMS ((int)); | |
2475 | extern void build_common_tree_nodes_2 PARAMS ((int)); | |
a1d061a1 JL |
2476 | |
2477 | /* In function.c */ | |
58782098 KG |
2478 | extern void setjmp_protect_args PARAMS ((void)); |
2479 | extern void setjmp_protect PARAMS ((tree)); | |
2480 | extern void expand_main_function PARAMS ((void)); | |
2481 | extern void mark_varargs PARAMS ((void)); | |
2482 | extern void init_dummy_function_start PARAMS ((void)); | |
2483 | extern void expand_dummy_function_end PARAMS ((void)); | |
2484 | extern void init_function_for_compilation PARAMS ((void)); | |
2485 | extern void init_function_start PARAMS ((tree, char *, int)); | |
2486 | extern void assign_parms PARAMS ((tree)); | |
2487 | extern void put_var_into_stack PARAMS ((tree)); | |
13eb1f7f | 2488 | extern void flush_addressof PARAMS ((tree)); |
58782098 KG |
2489 | extern void uninitialized_vars_warning PARAMS ((tree)); |
2490 | extern void setjmp_args_warning PARAMS ((void)); | |
2491 | extern void mark_all_temps_used PARAMS ((void)); | |
2492 | extern void init_temp_slots PARAMS ((void)); | |
2493 | extern void combine_temp_slots PARAMS ((void)); | |
2494 | extern void free_temp_slots PARAMS ((void)); | |
2495 | extern void pop_temp_slots PARAMS ((void)); | |
2496 | extern void push_temp_slots PARAMS ((void)); | |
2497 | extern void preserve_temp_slots PARAMS ((struct rtx_def *)); | |
05bccae2 | 2498 | extern void preserve_rtl_expr_temps PARAMS ((tree)); |
58782098 | 2499 | extern int aggregate_value_p PARAMS ((tree)); |
591ccf92 | 2500 | extern void free_temps_for_rtl_expr PARAMS ((tree)); |
58782098 | 2501 | extern void instantiate_virtual_regs PARAMS ((tree, struct rtx_def *)); |
d1b81779 | 2502 | extern void unshare_all_rtl PARAMS ((tree, struct rtx_def *)); |
58782098 KG |
2503 | extern int max_parm_reg_num PARAMS ((void)); |
2504 | extern void push_function_context PARAMS ((void)); | |
2505 | extern void pop_function_context PARAMS ((void)); | |
2506 | extern void push_function_context_to PARAMS ((tree)); | |
2507 | extern void pop_function_context_from PARAMS ((tree)); | |
a1d061a1 JL |
2508 | |
2509 | /* In print-rtl.c */ | |
2510 | #ifdef BUFSIZ | |
58782098 | 2511 | extern void print_rtl PARAMS ((FILE *, struct rtx_def *)); |
a1d061a1 JL |
2512 | #endif |
2513 | ||
2514 | /* In print-tree.c */ | |
58782098 | 2515 | extern void debug_tree PARAMS ((tree)); |
a1d061a1 | 2516 | #ifdef BUFSIZ |
58782098 KG |
2517 | extern void print_node PARAMS ((FILE *, const char *, tree, int)); |
2518 | extern void print_node_brief PARAMS ((FILE *, const char *, tree, int)); | |
2519 | extern void indent_to PARAMS ((FILE *, int)); | |
a1d061a1 JL |
2520 | #endif |
2521 | ||
2522 | /* In expr.c */ | |
58782098 KG |
2523 | extern void emit_queue PARAMS ((void)); |
2524 | extern int apply_args_register_offset PARAMS ((int)); | |
a1d061a1 | 2525 | extern struct rtx_def *expand_builtin_return_addr |
58782098 KG |
2526 | PARAMS ((enum built_in_function, int, struct rtx_def *)); |
2527 | extern void do_pending_stack_adjust PARAMS ((void)); | |
2528 | extern struct rtx_def *expand_assignment PARAMS ((tree, tree, int, int)); | |
2529 | extern struct rtx_def *store_expr PARAMS ((tree, struct rtx_def *, | |
a1d061a1 | 2530 | int)); |
58782098 | 2531 | extern void check_max_integer_computation_mode PARAMS ((tree)); |
a1d061a1 JL |
2532 | |
2533 | /* In emit-rtl.c */ | |
591ccf92 | 2534 | extern void start_sequence_for_rtl_expr PARAMS ((tree)); |
3cce094d KG |
2535 | extern struct rtx_def *emit_line_note_after PARAMS ((const char *, int, |
2536 | struct rtx_def *)); | |
2537 | extern struct rtx_def *emit_line_note PARAMS ((const char *, int)); | |
2538 | extern struct rtx_def *emit_line_note_force PARAMS ((const char *, int)); | |
a1d061a1 | 2539 | |
3a8c995b | 2540 | /* In calls.c */ |
f2d33f13 JH |
2541 | |
2542 | /* Flags used by special_function_p. */ | |
2543 | extern int setjmp_call_p PARAMS ((tree)); | |
3a8c995b | 2544 | |
a1d061a1 | 2545 | /* In c-typeck.c */ |
58782098 KG |
2546 | extern int mark_addressable PARAMS ((tree)); |
2547 | extern void incomplete_type_error PARAMS ((tree, tree)); | |
a1d061a1 JL |
2548 | |
2549 | /* In c-lang.c */ | |
58782098 | 2550 | extern void print_lang_statistics PARAMS ((void)); |
a1d061a1 JL |
2551 | |
2552 | /* In c-common.c */ | |
58782098 | 2553 | extern tree truthvalue_conversion PARAMS ((tree)); |
58782098 | 2554 | extern void split_specs_attrs PARAMS ((tree, tree *, tree *)); |
a1d061a1 JL |
2555 | |
2556 | /* In c-decl.c */ | |
2557 | #ifdef BUFSIZ | |
58782098 KG |
2558 | extern void print_lang_decl PARAMS ((FILE *, tree, int)); |
2559 | extern void print_lang_type PARAMS ((FILE *, tree, int)); | |
2560 | extern void print_lang_identifier PARAMS ((FILE *, tree, int)); | |
a1d061a1 | 2561 | #endif |
58782098 KG |
2562 | extern int global_bindings_p PARAMS ((void)); |
2563 | extern void insert_block PARAMS ((tree)); | |
a1d061a1 JL |
2564 | |
2565 | /* In integrate.c */ | |
58782098 KG |
2566 | extern void save_for_inline_nocopy PARAMS ((tree)); |
2567 | extern void save_for_inline_copying PARAMS ((tree)); | |
2568 | extern void set_decl_abstract_flags PARAMS ((tree, int)); | |
2569 | extern void output_inline_function PARAMS ((tree)); | |
1cfdcc15 | 2570 | extern void set_decl_origin_self PARAMS ((tree)); |
a1d061a1 JL |
2571 | |
2572 | /* In c-lex.c */ | |
58782098 | 2573 | extern void set_yydebug PARAMS ((int)); |
a1d061a1 JL |
2574 | |
2575 | /* In stor-layout.c */ | |
58782098 | 2576 | extern void fixup_signed_type PARAMS ((tree)); |
a1d061a1 JL |
2577 | |
2578 | /* varasm.c */ | |
58782098 KG |
2579 | extern void make_decl_rtl PARAMS ((tree, const char *, int)); |
2580 | extern void make_decl_one_only PARAMS ((tree)); | |
2581 | extern int supports_one_only PARAMS ((void)); | |
2582 | extern void variable_section PARAMS ((tree, int)); | |
a1d061a1 JL |
2583 | |
2584 | /* In fold-const.c */ | |
58782098 | 2585 | extern int div_and_round_double PARAMS ((enum tree_code, int, |
05bccae2 RK |
2586 | unsigned HOST_WIDE_INT, |
2587 | HOST_WIDE_INT, | |
2588 | unsigned HOST_WIDE_INT, | |
2589 | HOST_WIDE_INT, | |
2590 | unsigned HOST_WIDE_INT *, | |
2591 | HOST_WIDE_INT *, | |
2592 | unsigned HOST_WIDE_INT *, | |
2593 | HOST_WIDE_INT *)); | |
a1d061a1 JL |
2594 | |
2595 | /* In stmt.c */ | |
58782098 KG |
2596 | extern void emit_nop PARAMS ((void)); |
2597 | extern void expand_computed_goto PARAMS ((tree)); | |
2598 | extern struct rtx_def *label_rtx PARAMS ((tree)); | |
2599 | extern void expand_asm_operands PARAMS ((tree, tree, tree, tree, int, | |
a1d061a1 | 2600 | char *, int)); |
58782098 KG |
2601 | extern int any_pending_cleanups PARAMS ((int)); |
2602 | extern void init_stmt PARAMS ((void)); | |
2603 | extern void init_stmt_for_function PARAMS ((void)); | |
2604 | extern int drop_through_at_end_p PARAMS ((void)); | |
2605 | extern void expand_start_target_temps PARAMS ((void)); | |
2606 | extern void expand_end_target_temps PARAMS ((void)); | |
2607 | extern void expand_elseif PARAMS ((tree)); | |
2608 | extern void expand_decl PARAMS ((tree)); | |
2609 | extern int expand_decl_cleanup PARAMS ((tree, tree)); | |
2610 | extern void expand_anon_union_decl PARAMS ((tree, tree, tree)); | |
2611 | extern void move_cleanups_up PARAMS ((void)); | |
2612 | extern void expand_start_case_dummy PARAMS ((void)); | |
2613 | extern void expand_end_case_dummy PARAMS ((void)); | |
2614 | extern tree case_index_expr_type PARAMS ((void)); | |
2615 | extern HOST_WIDE_INT all_cases_count PARAMS ((tree, int *)); | |
2616 | extern void check_for_full_enumeration_handling PARAMS ((tree)); | |
2617 | extern void declare_nonlocal_label PARAMS ((tree)); | |
31ed227b | 2618 | #ifdef BUFSIZ |
58782098 | 2619 | extern void lang_print_xnode PARAMS ((FILE *, tree, int)); |
31ed227b JL |
2620 | #endif |
2621 | ||
a1d061a1 | 2622 | |
496651db MM |
2623 | /* If KIND=='I', return a suitable global initializer (constructor) name. |
2624 | If KIND=='D', return a suitable global clean-up (destructor) name. */ | |
58782098 | 2625 | extern tree get_file_function_name PARAMS ((int)); |
af4142d5 JM |
2626 | \f |
2627 | /* Interface of the DWARF2 unwind info support. */ | |
2628 | ||
2629 | /* Decide whether we want to emit frame unwind information for the current | |
2630 | translation unit. */ | |
2631 | ||
58782098 | 2632 | extern int dwarf2out_do_frame PARAMS ((void)); |
af4142d5 JM |
2633 | |
2634 | /* Generate a new label for the CFI info to refer to. */ | |
2635 | ||
58782098 | 2636 | extern char *dwarf2out_cfi_label PARAMS ((void)); |
af4142d5 JM |
2637 | |
2638 | /* Entry point to update the canonical frame address (CFA). */ | |
2639 | ||
58782098 | 2640 | extern void dwarf2out_def_cfa PARAMS ((char *, unsigned, long)); |
af4142d5 JM |
2641 | |
2642 | /* Add the CFI for saving a register window. */ | |
2643 | ||
58782098 | 2644 | extern void dwarf2out_window_save PARAMS ((char *)); |
af4142d5 JM |
2645 | |
2646 | /* Add a CFI to update the running total of the size of arguments pushed | |
2647 | onto the stack. */ | |
2648 | ||
58782098 | 2649 | extern void dwarf2out_args_size PARAMS ((char *, long)); |
af4142d5 JM |
2650 | |
2651 | /* Entry point for saving a register to the stack. */ | |
2652 | ||
58782098 | 2653 | extern void dwarf2out_reg_save PARAMS ((char *, unsigned, long)); |
af4142d5 JM |
2654 | |
2655 | /* Entry point for saving the return address in the stack. */ | |
2656 | ||
58782098 | 2657 | extern void dwarf2out_return_save PARAMS ((char *, long)); |
af4142d5 JM |
2658 | |
2659 | /* Entry point for saving the return address in a register. */ | |
2660 | ||
58782098 | 2661 | extern void dwarf2out_return_reg PARAMS ((char *, unsigned)); |
af4142d5 JM |
2662 | |
2663 | /* Output a marker (i.e. a label) for the beginning of a function, before | |
2664 | the prologue. */ | |
2665 | ||
58782098 | 2666 | extern void dwarf2out_begin_prologue PARAMS ((void)); |
af4142d5 JM |
2667 | |
2668 | /* Output a marker (i.e. a label) for the absolute end of the generated | |
2669 | code for a function definition. */ | |
2670 | ||
58782098 | 2671 | extern void dwarf2out_end_epilogue PARAMS ((void)); |
987009bf ZW |
2672 | |
2673 | /* Redefine abort to report an internal error w/o coredump, and | |
2674 | reporting the location of the error in the source file. This logic | |
2675 | is duplicated in rtl.h and tree.h because every file that needs the | |
2676 | special abort includes one or both. toplev.h gets too few files, | |
2677 | system.h gets too many. */ | |
2678 | ||
58782098 | 2679 | extern void fancy_abort PARAMS ((const char *, int, const char *)) |
987009bf | 2680 | ATTRIBUTE_NORETURN; |
6c9821b7 | 2681 | #if (GCC_VERSION >= 2007) |
987009bf | 2682 | #define abort() fancy_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__) |
6c9821b7 PDM |
2683 | #else |
2684 | #define abort() fancy_abort (__FILE__, __LINE__, 0) | |
987009bf | 2685 | #endif |