]>
Commit | Line | Data |
---|---|---|
8da1b058 | 1 | /* Front-end tree definitions for GNU compiler. |
70dec765 | 2 | Copyright (C) 1989, 93-98, 1999, 2000 Free Software Foundation, Inc. |
8da1b058 RS |
3 | |
4 | This file is part of GNU CC. | |
5 | ||
6 | GNU CC is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GNU CC is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU CC; see the file COPYING. If not, write to | |
e9fa0c7c RK |
18 | the Free Software Foundation, 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
8da1b058 RS |
20 | |
21 | #include "machmode.h" | |
22 | ||
d6b12657 RK |
23 | #ifndef RTX_CODE |
24 | struct rtx_def; | |
25 | #endif | |
26 | ||
27 | /* Codes of tree nodes */ | |
8da1b058 RS |
28 | |
29 | #define DEFTREECODE(SYM, STRING, TYPE, NARGS) SYM, | |
30 | ||
31 | enum tree_code { | |
32 | #include "tree.def" | |
33 | ||
6dc42e49 | 34 | LAST_AND_UNUSED_TREE_CODE /* A convenient way to get a value for |
8da1b058 RS |
35 | NUM_TREE_CODE. */ |
36 | }; | |
37 | ||
38 | #undef DEFTREECODE | |
39 | ||
40 | /* Number of tree codes. */ | |
41 | #define NUM_TREE_CODES ((int)LAST_AND_UNUSED_TREE_CODE) | |
42 | ||
43 | /* Indexed by enum tree_code, contains a character which is | |
44 | `<' for a comparison expression, `1', for a unary arithmetic | |
45 | expression, `2' for a binary arithmetic expression, `e' for | |
46 | other types of expressions, `r' for a reference, `c' for a | |
47 | constant, `d' for a decl, `t' for a type, `s' for a statement, | |
48 | and `x' for anything else (TREE_LIST, IDENTIFIER, etc). */ | |
49 | ||
0a6969ad JC |
50 | #define MAX_TREE_CODES 256 |
51 | extern char tree_code_type[MAX_TREE_CODES]; | |
52 | #define TREE_CODE_CLASS(CODE) tree_code_type[(int) (CODE)] | |
8da1b058 | 53 | |
4da05956 MM |
54 | /* Returns non-zero iff CLASS is the tree-code class of an |
55 | expression. */ | |
56 | ||
57 | #define IS_EXPR_CODE_CLASS(CLASS) \ | |
8830da36 | 58 | (CLASS == '<' || CLASS == '1' || CLASS == '2' || CLASS == 'e') |
4da05956 | 59 | |
8da1b058 RS |
60 | /* Number of argument-words in each kind of tree-node. */ |
61 | ||
0a6969ad | 62 | extern int tree_code_length[MAX_TREE_CODES]; |
8da1b058 RS |
63 | |
64 | /* Names of tree components. */ | |
65 | ||
5f8ded66 | 66 | extern const char *tree_code_name[MAX_TREE_CODES]; |
8da1b058 | 67 | \f |
26db82d8 BS |
68 | /* Classify which part of the compiler has defined a given builtin |
69 | function. */ | |
70 | enum built_in_class | |
71 | { | |
72 | NOT_BUILT_IN = 0, | |
73 | BUILT_IN_FRONTEND, | |
74 | BUILT_IN_MD, | |
75 | BUILT_IN_NORMAL | |
76 | }; | |
8da1b058 RS |
77 | /* Codes that identify the various built in functions |
78 | so that expand_call can identify them quickly. */ | |
79 | ||
80 | enum built_in_function | |
81 | { | |
8da1b058 RS |
82 | BUILT_IN_ALLOCA, |
83 | BUILT_IN_ABS, | |
84 | BUILT_IN_FABS, | |
85 | BUILT_IN_LABS, | |
86 | BUILT_IN_FFS, | |
87 | BUILT_IN_DIV, | |
88 | BUILT_IN_LDIV, | |
89 | BUILT_IN_FFLOOR, | |
90 | BUILT_IN_FCEIL, | |
91 | BUILT_IN_FMOD, | |
92 | BUILT_IN_FREM, | |
93 | BUILT_IN_MEMCPY, | |
94 | BUILT_IN_MEMCMP, | |
95 | BUILT_IN_MEMSET, | |
96 | BUILT_IN_STRCPY, | |
97 | BUILT_IN_STRCMP, | |
98 | BUILT_IN_STRLEN, | |
99 | BUILT_IN_FSQRT, | |
a1ee10a4 JVA |
100 | BUILT_IN_SIN, |
101 | BUILT_IN_COS, | |
8da1b058 RS |
102 | BUILT_IN_GETEXP, |
103 | BUILT_IN_GETMAN, | |
104 | BUILT_IN_SAVEREGS, | |
105 | BUILT_IN_CLASSIFY_TYPE, | |
106 | BUILT_IN_NEXT_ARG, | |
107 | BUILT_IN_ARGS_INFO, | |
108 | BUILT_IN_CONSTANT_P, | |
109 | BUILT_IN_FRAME_ADDRESS, | |
110 | BUILT_IN_RETURN_ADDRESS, | |
0844ee7f | 111 | BUILT_IN_AGGREGATE_INCOMING_ADDRESS, |
7f11e158 TW |
112 | BUILT_IN_APPLY_ARGS, |
113 | BUILT_IN_APPLY, | |
114 | BUILT_IN_RETURN, | |
33fb8b5f RK |
115 | BUILT_IN_SETJMP, |
116 | BUILT_IN_LONGJMP, | |
e0cd0770 | 117 | BUILT_IN_TRAP, |
8da1b058 | 118 | |
1eb8759b RH |
119 | /* ISO C99 floating point unordered comparisons. */ |
120 | BUILT_IN_ISGREATER, | |
121 | BUILT_IN_ISGREATEREQUAL, | |
122 | BUILT_IN_ISLESS, | |
123 | BUILT_IN_ISLESSEQUAL, | |
124 | BUILT_IN_ISLESSGREATER, | |
125 | BUILT_IN_ISUNORDERED, | |
126 | ||
0021b564 | 127 | /* Various hooks for the DWARF 2 __throw routine. */ |
0021b564 | 128 | BUILT_IN_UNWIND_INIT, |
71038426 | 129 | BUILT_IN_DWARF_CFA, |
0021b564 | 130 | BUILT_IN_DWARF_FP_REGNUM, |
d9d5c9de | 131 | BUILT_IN_INIT_DWARF_REG_SIZES, |
0021b564 JM |
132 | BUILT_IN_FROB_RETURN_ADDR, |
133 | BUILT_IN_EXTRACT_RETURN_ADDR, | |
71038426 | 134 | BUILT_IN_EH_RETURN, |
0021b564 | 135 | |
d3707adb RH |
136 | BUILT_IN_VARARGS_START, |
137 | BUILT_IN_STDARG_START, | |
138 | BUILT_IN_VA_END, | |
139 | BUILT_IN_VA_COPY, | |
140 | ||
8da1b058 RS |
141 | /* C++ extensions */ |
142 | BUILT_IN_NEW, | |
143 | BUILT_IN_VEC_NEW, | |
144 | BUILT_IN_DELETE, | |
972ded9c RS |
145 | BUILT_IN_VEC_DELETE, |
146 | ||
147 | /* Upper bound on non-language-specific builtins. */ | |
148 | END_BUILTINS | |
8da1b058 RS |
149 | }; |
150 | \f | |
151 | /* The definition of tree nodes fills the next several pages. */ | |
152 | ||
153 | /* A tree node can represent a data type, a variable, an expression | |
154 | or a statement. Each node has a TREE_CODE which says what kind of | |
155 | thing it represents. Some common codes are: | |
156 | INTEGER_TYPE -- represents a type of integers. | |
157 | ARRAY_TYPE -- represents a type of pointer. | |
158 | VAR_DECL -- represents a declared variable. | |
159 | INTEGER_CST -- represents a constant integer value. | |
160 | PLUS_EXPR -- represents a sum (an expression). | |
161 | ||
162 | As for the contents of a tree node: there are some fields | |
163 | that all nodes share. Each TREE_CODE has various special-purpose | |
164 | fields as well. The fields of a node are never accessed directly, | |
165 | always through accessor macros. */ | |
166 | ||
167 | /* This type is used everywhere to refer to a tree node. */ | |
168 | ||
169 | typedef union tree_node *tree; | |
170 | ||
8da1b058 RS |
171 | /* Every kind of tree node starts with this structure, |
172 | so all nodes have these fields. | |
173 | ||
42801468 JL |
174 | See the accessor macros, defined below, for documentation of the fields. |
175 | ||
176 | DO NOT change the layout of tree_common unless absolutely necessary. Some | |
177 | front-ends (namely g++) depend on the internal layout of this tructure. | |
178 | See my_tree_cons in the cp subdir for such uglyness. Ugh. */ | |
8da1b058 RS |
179 | |
180 | struct tree_common | |
181 | { | |
182 | union tree_node *chain; | |
183 | union tree_node *type; | |
184 | #ifdef ONLY_INT_FIELDS | |
185 | unsigned int code : 8; | |
186 | #else | |
187 | enum tree_code code : 8; | |
188 | #endif | |
189 | ||
190 | unsigned side_effects_flag : 1; | |
191 | unsigned constant_flag : 1; | |
192 | unsigned permanent_flag : 1; | |
193 | unsigned addressable_flag : 1; | |
194 | unsigned volatile_flag : 1; | |
195 | unsigned readonly_flag : 1; | |
196 | unsigned unsigned_flag : 1; | |
197 | unsigned asm_written_flag: 1; | |
198 | ||
199 | unsigned used_flag : 1; | |
200 | unsigned raises_flag : 1; | |
201 | unsigned static_flag : 1; | |
202 | unsigned public_flag : 1; | |
203 | unsigned private_flag : 1; | |
204 | unsigned protected_flag : 1; | |
205 | ||
206 | unsigned lang_flag_0 : 1; | |
207 | unsigned lang_flag_1 : 1; | |
208 | unsigned lang_flag_2 : 1; | |
209 | unsigned lang_flag_3 : 1; | |
210 | unsigned lang_flag_4 : 1; | |
211 | unsigned lang_flag_5 : 1; | |
212 | unsigned lang_flag_6 : 1; | |
0a25f1f5 | 213 | |
005537df | 214 | /* There is room for three more flags. */ |
8da1b058 RS |
215 | }; |
216 | ||
a5f99f01 RK |
217 | /* The following table lists the uses of each of the above flags and |
218 | for which types of nodes they are defined. Note that expressions | |
219 | include decls. | |
220 | ||
221 | addressable_flag: | |
222 | ||
223 | TREE_ADDRESSABLE in | |
224 | VAR_DECL, FUNCTION_DECL, CONSTRUCTOR, LABEL_DECL, ..._TYPE | |
225 | IDENTIFIER_NODE | |
226 | ||
227 | static_flag: | |
228 | ||
229 | TREE_STATIC in | |
e5e809f4 | 230 | VAR_DECL, FUNCTION_DECL, CONSTRUCTOR, ADDR_EXPR |
a5f99f01 RK |
231 | TREE_NO_UNUSED_WARNING in |
232 | CONVERT_EXPR, NOP_EXPR, COMPOUND_EXPR | |
233 | TREE_VIA_VIRTUAL in | |
234 | TREE_LIST or TREE_VEC | |
235 | TREE_CONSTANT_OVERFLOW in | |
236 | INTEGER_CST, REAL_CST, COMPLEX_CST | |
237 | TREE_SYMBOL_REFERENCED in | |
238 | IDENTIFIER_NODE | |
239 | ||
240 | public_flag: | |
241 | ||
242 | TREE_OVERFLOW in | |
243 | INTEGER_CST, REAL_CST, COMPLEX_CST | |
244 | TREE_PUBLIC in | |
245 | VAR_DECL or FUNCTION_DECL | |
246 | TREE_VIA_PUBLIC in | |
247 | TREE_LIST or TREE_VEC | |
dadafe54 PB |
248 | EXPR_WFL_EMIT_LINE_NOTE in |
249 | EXPR_WITH_FILE_LOCATION | |
a5f99f01 RK |
250 | |
251 | private_flag: | |
252 | ||
253 | TREE_VIA_PRIVATE in | |
254 | TREE_LIST or TREE_VEC | |
255 | TREE_PRIVATE in | |
256 | ??? unspecified nodes | |
257 | ||
258 | protected_flag: | |
259 | ||
260 | TREE_VIA_PROTECTED in | |
261 | TREE_LIST | |
262 | TREE_PROTECTED in | |
263 | BLOCK | |
264 | ??? unspecified nodes | |
265 | ||
266 | side_effects_flag: | |
267 | ||
268 | TREE_SIDE_EFFECTS in | |
269 | all expressions | |
270 | ||
271 | volatile_flag: | |
272 | ||
273 | TREE_THIS_VOLATILE in | |
274 | all expressions | |
275 | TYPE_VOLATILE in | |
276 | ..._TYPE | |
277 | ||
278 | readonly_flag: | |
279 | ||
280 | TREE_READONLY in | |
e5e809f4 | 281 | all expressions |
a5f99f01 RK |
282 | ITERATOR_BOUND_P in |
283 | VAR_DECL if iterator (C) | |
284 | TYPE_READONLY in | |
285 | ..._TYPE | |
286 | ||
287 | constant_flag: | |
288 | ||
289 | TREE_CONSTANT in | |
290 | all expressions | |
291 | ||
292 | permanent_flag: TREE_PERMANENT in all nodes | |
293 | ||
294 | unsigned_flag: | |
295 | ||
296 | TREE_UNSIGNED in | |
297 | INTEGER_TYPE, ENUMERAL_TYPE, FIELD_DECL | |
a5f99f01 RK |
298 | DECL_BUILT_IN_NONANSI in |
299 | FUNCTION_DECL | |
300 | TREE_PARMLIST in | |
301 | TREE_PARMLIST (C++) | |
e9a25f70 JL |
302 | SAVE_EXPR_NOPLACEHOLDER in |
303 | SAVE_EXPR | |
a5f99f01 RK |
304 | |
305 | asm_written_flag: | |
306 | ||
307 | TREE_ASM_WRITTEN in | |
308 | VAR_DECL, FUNCTION_DECL, RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE | |
309 | BLOCK | |
310 | ||
311 | used_flag: | |
312 | ||
313 | TREE_USED in | |
314 | expressions, IDENTIFIER_NODE | |
315 | ||
316 | raises_flag: | |
317 | ||
318 | TREE_RAISES in | |
319 | expressions | |
320 | ||
321 | */ | |
8da1b058 RS |
322 | /* Define accessors for the fields that all tree nodes have |
323 | (though some fields are not used for all kinds of nodes). */ | |
324 | ||
325 | /* The tree-code says what kind of node it is. | |
326 | Codes are defined in tree.def. */ | |
327 | #define TREE_CODE(NODE) ((enum tree_code) (NODE)->common.code) | |
328 | #define TREE_SET_CODE(NODE, VALUE) ((NODE)->common.code = (int) (VALUE)) | |
329 | ||
12b195d9 | 330 | /* When checking is enabled, errors will be generated if a tree node |
8f985ec4 | 331 | is accessed incorrectly. The macros abort with a fatal error. */ |
f4524c9e | 332 | #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007) |
12b195d9 | 333 | |
8f985ec4 ZW |
334 | #define TREE_CHECK(t, code) \ |
335 | ({ const tree __t = t; \ | |
336 | if (TREE_CODE(__t) != (code)) \ | |
337 | tree_check_failed (__t, code, __FILE__, \ | |
338 | __LINE__, __PRETTY_FUNCTION__); \ | |
339 | __t; }) | |
340 | #define TREE_CLASS_CHECK(t, class) \ | |
341 | ({ const tree __t = t; \ | |
342 | if (TREE_CODE_CLASS(TREE_CODE(__t)) != (class)) \ | |
343 | tree_class_check_failed (__t, class, __FILE__, \ | |
344 | __LINE__, __PRETTY_FUNCTION__); \ | |
345 | __t; }) | |
346 | ||
347 | /* These checks have to be special cased. */ | |
348 | #define CST_OR_CONSTRUCTOR_CHECK(t) \ | |
349 | ({ const tree __t = t; \ | |
350 | enum tree_code __c = TREE_CODE(__t); \ | |
351 | if (__c != CONSTRUCTOR && TREE_CODE_CLASS(__c) != 'c') \ | |
352 | tree_check_failed (__t, CONSTRUCTOR, __FILE__, \ | |
353 | __LINE__, __PRETTY_FUNCTION__); \ | |
354 | __t; }) | |
355 | #define EXPR_CHECK(t) \ | |
356 | ({ const tree __t = t; \ | |
357 | char __c = TREE_CODE_CLASS(TREE_CODE(__t)); \ | |
358 | if (__c != 'r' && __c != 's' && __c != '<' \ | |
359 | && __c != '1' && __c != '2' && __c != 'e') \ | |
360 | tree_class_check_failed(__t, 'e', __FILE__, \ | |
361 | __LINE__, __PRETTY_FUNCTION__); \ | |
362 | __t; }) | |
363 | ||
58782098 | 364 | extern void tree_check_failed PARAMS ((const tree, enum tree_code, |
8f985ec4 ZW |
365 | const char *, int, const char *)) |
366 | ATTRIBUTE_NORETURN; | |
58782098 | 367 | extern void tree_class_check_failed PARAMS ((const tree, char, |
8f985ec4 ZW |
368 | const char *, int, const char *)) |
369 | ATTRIBUTE_NORETURN; | |
370 | ||
f4524c9e | 371 | #else /* not ENABLE_TREE_CHECKING, or not gcc */ |
12b195d9 | 372 | |
8f985ec4 ZW |
373 | #define TREE_CHECK(t, code) (t) |
374 | #define TREE_CLASS_CHECK(t, code) (t) | |
375 | #define CST_OR_CONSTRUCTOR_CHECK(t) (t) | |
376 | #define EXPR_CHECK(t) (t) | |
377 | ||
378 | #endif | |
379 | ||
380 | #include "tree-check.h" | |
381 | ||
382 | #define TYPE_CHECK(tree) TREE_CLASS_CHECK (tree, 't') | |
383 | #define DECL_CHECK(tree) TREE_CLASS_CHECK (tree, 'd') | |
384 | #define CST_CHECK(tree) TREE_CLASS_CHECK (tree, 'c') | |
12b195d9 | 385 | |
8da1b058 RS |
386 | /* In all nodes that are expressions, this is the data type of the expression. |
387 | In POINTER_TYPE nodes, this is the type that the pointer points to. | |
388 | In ARRAY_TYPE nodes, this is the type of the elements. */ | |
389 | #define TREE_TYPE(NODE) ((NODE)->common.type) | |
390 | ||
391 | /* Nodes are chained together for many purposes. | |
392 | Types are chained together to record them for being output to the debugger | |
393 | (see the function `chain_type'). | |
394 | Decls in the same scope are chained together to record the contents | |
395 | of the scope. | |
396 | Statement nodes for successive statements used to be chained together. | |
397 | Often lists of things are represented by TREE_LIST nodes that | |
398 | are chained together. */ | |
399 | ||
400 | #define TREE_CHAIN(NODE) ((NODE)->common.chain) | |
401 | ||
402 | /* Given an expression as a tree, strip any NON_LVALUE_EXPRs and NOP_EXPRs | |
403 | that don't change the machine mode. */ | |
404 | ||
405 | #define STRIP_NOPS(EXP) \ | |
406 | while ((TREE_CODE (EXP) == NOP_EXPR \ | |
407 | || TREE_CODE (EXP) == CONVERT_EXPR \ | |
408 | || TREE_CODE (EXP) == NON_LVALUE_EXPR) \ | |
409 | && (TYPE_MODE (TREE_TYPE (EXP)) \ | |
410 | == TYPE_MODE (TREE_TYPE (TREE_OPERAND (EXP, 0))))) \ | |
411 | (EXP) = TREE_OPERAND (EXP, 0); | |
0fafb45e | 412 | |
14a774a9 RK |
413 | /* Like STRIP_NOPS, but don't let the signedness change either. */ |
414 | ||
415 | #define STRIP_SIGN_NOPS(EXP) \ | |
416 | while ((TREE_CODE (EXP) == NOP_EXPR \ | |
417 | || TREE_CODE (EXP) == CONVERT_EXPR \ | |
418 | || TREE_CODE (EXP) == NON_LVALUE_EXPR) \ | |
419 | && (TYPE_MODE (TREE_TYPE (EXP)) \ | |
420 | == TYPE_MODE (TREE_TYPE (TREE_OPERAND (EXP, 0)))) \ | |
421 | && (TREE_UNSIGNED (TREE_TYPE (EXP)) \ | |
422 | == TREE_UNSIGNED (TREE_TYPE (TREE_OPERAND (EXP, 0))))) \ | |
423 | (EXP) = TREE_OPERAND (EXP, 0); | |
424 | ||
0fafb45e RS |
425 | /* Like STRIP_NOPS, but don't alter the TREE_TYPE either. */ |
426 | ||
427 | #define STRIP_TYPE_NOPS(EXP) \ | |
428 | while ((TREE_CODE (EXP) == NOP_EXPR \ | |
429 | || TREE_CODE (EXP) == CONVERT_EXPR \ | |
430 | || TREE_CODE (EXP) == NON_LVALUE_EXPR) \ | |
431 | && (TREE_TYPE (EXP) \ | |
432 | == TREE_TYPE (TREE_OPERAND (EXP, 0)))) \ | |
433 | (EXP) = TREE_OPERAND (EXP, 0); | |
87291138 RK |
434 | |
435 | /* Nonzero if TYPE represents an integral type. Note that we do not | |
436 | include COMPLEX types here. */ | |
437 | ||
438 | #define INTEGRAL_TYPE_P(TYPE) \ | |
439 | (TREE_CODE (TYPE) == INTEGER_TYPE || TREE_CODE (TYPE) == ENUMERAL_TYPE \ | |
440 | || TREE_CODE (TYPE) == BOOLEAN_TYPE || TREE_CODE (TYPE) == CHAR_TYPE) | |
441 | ||
442 | /* Nonzero if TYPE represents a floating-point type, including complex | |
443 | floating-point types. */ | |
444 | ||
445 | #define FLOAT_TYPE_P(TYPE) \ | |
446 | (TREE_CODE (TYPE) == REAL_TYPE \ | |
447 | || (TREE_CODE (TYPE) == COMPLEX_TYPE \ | |
448 | && TREE_CODE (TREE_TYPE (TYPE)) == REAL_TYPE)) | |
947765f9 PB |
449 | |
450 | /* Nonzero if TYPE represents an aggregate (multi-component) type. */ | |
451 | ||
452 | #define AGGREGATE_TYPE_P(TYPE) \ | |
453 | (TREE_CODE (TYPE) == ARRAY_TYPE || TREE_CODE (TYPE) == RECORD_TYPE \ | |
454 | || TREE_CODE (TYPE) == UNION_TYPE || TREE_CODE (TYPE) == QUAL_UNION_TYPE \ | |
455 | || TREE_CODE (TYPE) == SET_TYPE) | |
9e6cfc43 JM |
456 | |
457 | /* Nonzero if TYPE represents a pointer type. */ | |
458 | ||
459 | #define POINTER_TYPE_P(TYPE) \ | |
460 | (TREE_CODE (TYPE) == POINTER_TYPE || TREE_CODE (TYPE) == REFERENCE_TYPE) | |
555f90c5 JM |
461 | |
462 | /* Nonzero if TYPE represents a type. */ | |
463 | ||
464 | #define TYPE_P(TYPE) (TREE_CODE_CLASS (TREE_CODE (TYPE)) == 't') | |
8da1b058 RS |
465 | \f |
466 | /* Define many boolean fields that all tree nodes have. */ | |
467 | ||
468 | /* In VAR_DECL nodes, nonzero means address of this is needed. | |
469 | So it cannot be in a register. | |
470 | In a FUNCTION_DECL, nonzero means its address is needed. | |
471 | So it must be compiled even if it is an inline function. | |
472 | In CONSTRUCTOR nodes, it means object constructed must be in memory. | |
473 | In LABEL_DECL nodes, it means a goto for this label has been seen | |
474 | from a place outside all binding contours that restore stack levels. | |
475 | In ..._TYPE nodes, it means that objects of this type must | |
476 | be fully addressable. This means that pieces of this | |
477 | object cannot go into register parameters, for example. | |
478 | In IDENTIFIER_NODEs, this means that some extern decl for this name | |
479 | had its address taken. That matters for inline functions. */ | |
480 | #define TREE_ADDRESSABLE(NODE) ((NODE)->common.addressable_flag) | |
481 | ||
482 | /* In a VAR_DECL, nonzero means allocate static storage. | |
9f86614b | 483 | In a FUNCTION_DECL, nonzero if function has been defined. |
8da1b058 RS |
484 | In a CONSTRUCTOR, nonzero means allocate static storage. */ |
485 | #define TREE_STATIC(NODE) ((NODE)->common.static_flag) | |
486 | ||
248c0f74 JM |
487 | /* In a CONVERT_EXPR, NOP_EXPR or COMPOUND_EXPR, this means the node was |
488 | made implicitly and should not lead to an "unused value" warning. */ | |
8da1b058 RS |
489 | #define TREE_NO_UNUSED_WARNING(NODE) ((NODE)->common.static_flag) |
490 | ||
491 | /* Nonzero for a TREE_LIST or TREE_VEC node means that the derivation | |
492 | chain is via a `virtual' declaration. */ | |
493 | #define TREE_VIA_VIRTUAL(NODE) ((NODE)->common.static_flag) | |
494 | ||
ae202b56 RK |
495 | /* In an INTEGER_CST, REAL_CST, or COMPLEX_CST, this means there was an |
496 | overflow in folding. This is distinct from TREE_OVERFLOW because ANSI C | |
497 | requires a diagnostic when overflows occur in constant expressions. */ | |
261450e8 PE |
498 | #define TREE_CONSTANT_OVERFLOW(NODE) ((NODE)->common.static_flag) |
499 | ||
d3568529 JM |
500 | /* In an IDENTIFIER_NODE, this means that assemble_name was called with |
501 | this string as an argument. */ | |
502 | #define TREE_SYMBOL_REFERENCED(NODE) ((NODE)->common.static_flag) | |
503 | ||
ae202b56 RK |
504 | /* In an INTEGER_CST, REAL_CST, of COMPLEX_CST, this means there was an |
505 | overflow in folding, and no warning has been issued for this subexpression. | |
261450e8 PE |
506 | TREE_OVERFLOW implies TREE_CONSTANT_OVERFLOW, but not vice versa. */ |
507 | #define TREE_OVERFLOW(NODE) ((NODE)->common.public_flag) | |
508 | ||
8da1b058 RS |
509 | /* In a VAR_DECL or FUNCTION_DECL, |
510 | nonzero means name is to be accessible from outside this module. | |
858a47b1 | 511 | In an identifier node, nonzero means an external declaration |
6dc42e49 | 512 | accessible from outside this module was previously seen |
8da1b058 RS |
513 | for this name in an inner scope. */ |
514 | #define TREE_PUBLIC(NODE) ((NODE)->common.public_flag) | |
515 | ||
516 | /* Nonzero for TREE_LIST or TREE_VEC node means that the path to the | |
517 | base class is via a `public' declaration, which preserves public | |
518 | fields from the base class as public. */ | |
519 | #define TREE_VIA_PUBLIC(NODE) ((NODE)->common.public_flag) | |
520 | ||
9e5386db MS |
521 | /* Ditto, for `private' declarations. */ |
522 | #define TREE_VIA_PRIVATE(NODE) ((NODE)->common.private_flag) | |
523 | ||
524 | /* Nonzero for TREE_LIST node means that the path to the | |
525 | base class is via a `protected' declaration, which preserves | |
526 | protected fields from the base class as protected. | |
527 | OVERLOADED. */ | |
026380ff | 528 | #define TREE_VIA_PROTECTED(NODE) ((NODE)->common.protected_flag) |
9e5386db | 529 | |
8da1b058 RS |
530 | /* In any expression, nonzero means it has side effects or reevaluation |
531 | of the whole expression could produce a different value. | |
532 | This is set if any subexpression is a function call, a side effect | |
533 | or a reference to a volatile variable. | |
534 | In a ..._DECL, this is set only if the declaration said `volatile'. */ | |
535 | #define TREE_SIDE_EFFECTS(NODE) ((NODE)->common.side_effects_flag) | |
536 | ||
537 | /* Nonzero means this expression is volatile in the C sense: | |
538 | its address should be of type `volatile WHATEVER *'. | |
539 | In other words, the declared item is volatile qualified. | |
540 | This is used in _DECL nodes and _REF nodes. | |
541 | ||
542 | In a ..._TYPE node, means this type is volatile-qualified. | |
543 | But use TYPE_VOLATILE instead of this macro when the node is a type, | |
544 | because eventually we may make that a different bit. | |
545 | ||
546 | If this bit is set in an expression, so is TREE_SIDE_EFFECTS. */ | |
547 | #define TREE_THIS_VOLATILE(NODE) ((NODE)->common.volatile_flag) | |
548 | ||
549 | /* In a VAR_DECL, PARM_DECL or FIELD_DECL, or any kind of ..._REF node, | |
550 | nonzero means it may not be the lhs of an assignment. | |
551 | In a ..._TYPE node, means this type is const-qualified | |
552 | (but the macro TYPE_READONLY should be used instead of this macro | |
553 | when the node is a type). */ | |
554 | #define TREE_READONLY(NODE) ((NODE)->common.readonly_flag) | |
555 | ||
556 | /* Value of expression is constant. | |
557 | Always appears in all ..._CST nodes. | |
558 | May also appear in an arithmetic expression, an ADDR_EXPR or a CONSTRUCTOR | |
559 | if the value is constant. */ | |
560 | #define TREE_CONSTANT(NODE) ((NODE)->common.constant_flag) | |
561 | ||
562 | /* Nonzero means permanent node; | |
563 | node will continue to exist for the entire compiler run. | |
564 | Otherwise it will be recycled at the end of the function. */ | |
565 | #define TREE_PERMANENT(NODE) ((NODE)->common.permanent_flag) | |
566 | ||
567 | /* In INTEGER_TYPE or ENUMERAL_TYPE nodes, means an unsigned type. | |
568 | In FIELD_DECL nodes, means an unsigned bit field. | |
569 | The same bit is used in functions as DECL_BUILT_IN_NONANSI. */ | |
570 | #define TREE_UNSIGNED(NODE) ((NODE)->common.unsigned_flag) | |
571 | ||
572 | /* Nonzero in a VAR_DECL means assembler code has been written. | |
573 | Nonzero in a FUNCTION_DECL means that the function has been compiled. | |
574 | This is interesting in an inline function, since it might not need | |
575 | to be compiled separately. | |
3635a54b | 576 | Nonzero in a RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE or ENUMERAL_TYPE |
9f86614b RS |
577 | if the sdb debugging info for the type has been written. |
578 | In a BLOCK node, nonzero if reorder_blocks has already seen this block. */ | |
8da1b058 RS |
579 | #define TREE_ASM_WRITTEN(NODE) ((NODE)->common.asm_written_flag) |
580 | ||
581 | /* Nonzero in a _DECL if the name is used in its scope. | |
582 | Nonzero in an expr node means inhibit warning if value is unused. | |
583 | In IDENTIFIER_NODEs, this means that some extern decl for this name | |
584 | was used. */ | |
585 | #define TREE_USED(NODE) ((NODE)->common.used_flag) | |
586 | ||
587 | /* Nonzero for a tree node whose evaluation could result | |
588 | in the raising of an exception. Not implemented yet. */ | |
589 | #define TREE_RAISES(NODE) ((NODE)->common.raises_flag) | |
590 | ||
9f86614b | 591 | /* Used in classes in C++. */ |
8da1b058 | 592 | #define TREE_PRIVATE(NODE) ((NODE)->common.private_flag) |
9f86614b RS |
593 | /* Used in classes in C++. |
594 | In a BLOCK node, this is BLOCK_HANDLER_BLOCK. */ | |
8da1b058 RS |
595 | #define TREE_PROTECTED(NODE) ((NODE)->common.protected_flag) |
596 | ||
9f86614b | 597 | /* These flags are available for each language front end to use internally. */ |
8da1b058 RS |
598 | #define TREE_LANG_FLAG_0(NODE) ((NODE)->common.lang_flag_0) |
599 | #define TREE_LANG_FLAG_1(NODE) ((NODE)->common.lang_flag_1) | |
600 | #define TREE_LANG_FLAG_2(NODE) ((NODE)->common.lang_flag_2) | |
601 | #define TREE_LANG_FLAG_3(NODE) ((NODE)->common.lang_flag_3) | |
602 | #define TREE_LANG_FLAG_4(NODE) ((NODE)->common.lang_flag_4) | |
603 | #define TREE_LANG_FLAG_5(NODE) ((NODE)->common.lang_flag_5) | |
604 | #define TREE_LANG_FLAG_6(NODE) ((NODE)->common.lang_flag_6) | |
605 | \f | |
606 | /* Define additional fields and accessors for nodes representing constants. */ | |
607 | ||
e5d70561 RK |
608 | /* In an INTEGER_CST node. These two together make a 2-word integer. |
609 | If the data type is signed, the value is sign-extended to 2 words | |
8da1b058 | 610 | even though not all of them may really be in use. |
e5d70561 | 611 | In an unsigned constant shorter than 2 words, the extra bits are 0. */ |
12b195d9 ML |
612 | #define TREE_INT_CST_LOW(NODE) (INTEGER_CST_CHECK (NODE)->int_cst.int_cst_low) |
613 | #define TREE_INT_CST_HIGH(NODE) (INTEGER_CST_CHECK (NODE)->int_cst.int_cst_high) | |
8da1b058 RS |
614 | |
615 | #define INT_CST_LT(A, B) \ | |
616 | (TREE_INT_CST_HIGH (A) < TREE_INT_CST_HIGH (B) \ | |
617 | || (TREE_INT_CST_HIGH (A) == TREE_INT_CST_HIGH (B) \ | |
e5d70561 RK |
618 | && ((unsigned HOST_WIDE_INT) TREE_INT_CST_LOW (A) \ |
619 | < (unsigned HOST_WIDE_INT) TREE_INT_CST_LOW (B)))) | |
8da1b058 RS |
620 | |
621 | #define INT_CST_LT_UNSIGNED(A, B) \ | |
e5d70561 RK |
622 | (((unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (A) \ |
623 | < (unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (B)) \ | |
624 | || (((unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (A) \ | |
625 | == (unsigned HOST_WIDE_INT ) TREE_INT_CST_HIGH (B)) \ | |
626 | && (((unsigned HOST_WIDE_INT) TREE_INT_CST_LOW (A) \ | |
627 | < (unsigned HOST_WIDE_INT) TREE_INT_CST_LOW (B))))) | |
8da1b058 RS |
628 | |
629 | struct tree_int_cst | |
630 | { | |
631 | char common[sizeof (struct tree_common)]; | |
8e15f736 RK |
632 | struct rtx_def *rtl; /* acts as link to register transfer language |
633 | (rtl) info */ | |
e5d70561 RK |
634 | HOST_WIDE_INT int_cst_low; |
635 | HOST_WIDE_INT int_cst_high; | |
8da1b058 RS |
636 | }; |
637 | ||
638 | /* In REAL_CST, STRING_CST, COMPLEX_CST nodes, and CONSTRUCTOR nodes, | |
639 | and generally in all kinds of constants that could | |
640 | be given labels (rather than being immediate). */ | |
641 | ||
12b195d9 | 642 | #define TREE_CST_RTL(NODE) (CST_OR_CONSTRUCTOR_CHECK (NODE)->real_cst.rtl) |
8da1b058 RS |
643 | |
644 | /* In a REAL_CST node. */ | |
645 | /* We can represent a real value as either a `double' or a string. | |
646 | Strings don't allow for any optimization, but they do allow | |
647 | for cross-compilation. */ | |
648 | ||
12b195d9 | 649 | #define TREE_REAL_CST(NODE) (REAL_CST_CHECK (NODE)->real_cst.real_cst) |
8da1b058 RS |
650 | |
651 | #include "real.h" | |
652 | ||
653 | struct tree_real_cst | |
654 | { | |
655 | char common[sizeof (struct tree_common)]; | |
656 | struct rtx_def *rtl; /* acts as link to register transfer language | |
657 | (rtl) info */ | |
658 | REAL_VALUE_TYPE real_cst; | |
659 | }; | |
660 | ||
661 | /* In a STRING_CST */ | |
12b195d9 ML |
662 | #define TREE_STRING_LENGTH(NODE) (STRING_CST_CHECK (NODE)->string.length) |
663 | #define TREE_STRING_POINTER(NODE) (STRING_CST_CHECK (NODE)->string.pointer) | |
8da1b058 RS |
664 | |
665 | struct tree_string | |
666 | { | |
667 | char common[sizeof (struct tree_common)]; | |
668 | struct rtx_def *rtl; /* acts as link to register transfer language | |
669 | (rtl) info */ | |
670 | int length; | |
671 | char *pointer; | |
672 | }; | |
673 | ||
674 | /* In a COMPLEX_CST node. */ | |
12b195d9 ML |
675 | #define TREE_REALPART(NODE) (COMPLEX_CST_CHECK (NODE)->complex.real) |
676 | #define TREE_IMAGPART(NODE) (COMPLEX_CST_CHECK (NODE)->complex.imag) | |
8da1b058 RS |
677 | |
678 | struct tree_complex | |
679 | { | |
680 | char common[sizeof (struct tree_common)]; | |
681 | struct rtx_def *rtl; /* acts as link to register transfer language | |
682 | (rtl) info */ | |
683 | union tree_node *real; | |
684 | union tree_node *imag; | |
685 | }; | |
686 | \f | |
687 | /* Define fields and accessors for some special-purpose tree nodes. */ | |
688 | ||
12b195d9 ML |
689 | #define IDENTIFIER_LENGTH(NODE) (IDENTIFIER_NODE_CHECK (NODE)->identifier.length) |
690 | #define IDENTIFIER_POINTER(NODE) (IDENTIFIER_NODE_CHECK (NODE)->identifier.pointer) | |
8da1b058 RS |
691 | |
692 | struct tree_identifier | |
693 | { | |
694 | char common[sizeof (struct tree_common)]; | |
695 | int length; | |
696 | char *pointer; | |
697 | }; | |
698 | ||
699 | /* In a TREE_LIST node. */ | |
12b195d9 ML |
700 | #define TREE_PURPOSE(NODE) (TREE_LIST_CHECK (NODE)->list.purpose) |
701 | #define TREE_VALUE(NODE) (TREE_LIST_CHECK (NODE)->list.value) | |
8da1b058 RS |
702 | |
703 | struct tree_list | |
704 | { | |
705 | char common[sizeof (struct tree_common)]; | |
706 | union tree_node *purpose; | |
707 | union tree_node *value; | |
708 | }; | |
709 | ||
710 | /* In a TREE_VEC node. */ | |
12b195d9 ML |
711 | #define TREE_VEC_LENGTH(NODE) (TREE_VEC_CHECK (NODE)->vec.length) |
712 | #define TREE_VEC_ELT(NODE,I) (TREE_VEC_CHECK (NODE)->vec.a[I]) | |
52267fcb | 713 | #define TREE_VEC_END(NODE) ((void) TREE_VEC_CHECK (NODE),&((NODE)->vec.a[(NODE)->vec.length])) |
8da1b058 RS |
714 | |
715 | struct tree_vec | |
716 | { | |
717 | char common[sizeof (struct tree_common)]; | |
718 | int length; | |
719 | union tree_node *a[1]; | |
720 | }; | |
721 | ||
722 | /* Define fields and accessors for some nodes that represent expressions. */ | |
723 | ||
724 | /* In a SAVE_EXPR node. */ | |
725 | #define SAVE_EXPR_CONTEXT(NODE) TREE_OPERAND(NODE, 1) | |
12b195d9 | 726 | #define SAVE_EXPR_RTL(NODE) (*(struct rtx_def **) &EXPR_CHECK (NODE)->exp.operands[2]) |
e9a25f70 | 727 | #define SAVE_EXPR_NOPLACEHOLDER(NODE) TREE_UNSIGNED (NODE) |
d26f8097 MM |
728 | /* Nonzero if the SAVE_EXPRs value should be kept, even if it occurs |
729 | both in normal code and in a handler. (Normally, in a handler, all | |
730 | SAVE_EXPRs are unsaved, meaning that there values are | |
731 | recalculated.) */ | |
732 | #define SAVE_EXPR_PERSISTENT_P(NODE) TREE_ASM_WRITTEN (NODE) | |
8da1b058 RS |
733 | |
734 | /* In a RTL_EXPR node. */ | |
12b195d9 ML |
735 | #define RTL_EXPR_SEQUENCE(NODE) (*(struct rtx_def **) &EXPR_CHECK (NODE)->exp.operands[0]) |
736 | #define RTL_EXPR_RTL(NODE) (*(struct rtx_def **) &EXPR_CHECK (NODE)->exp.operands[1]) | |
8da1b058 RS |
737 | |
738 | /* In a CALL_EXPR node. */ | |
12b195d9 | 739 | #define CALL_EXPR_RTL(NODE) (*(struct rtx_def **) &EXPR_CHECK (NODE)->exp.operands[2]) |
8da1b058 RS |
740 | |
741 | /* In a CONSTRUCTOR node. */ | |
742 | #define CONSTRUCTOR_ELTS(NODE) TREE_OPERAND (NODE, 1) | |
743 | ||
61131fa2 | 744 | /* In ordinary expression nodes. */ |
12b195d9 ML |
745 | #define TREE_OPERAND(NODE, I) (EXPR_CHECK (NODE)->exp.operands[I]) |
746 | #define TREE_COMPLEXITY(NODE) (EXPR_CHECK (NODE)->exp.complexity) | |
61131fa2 | 747 | |
40edd0bd APB |
748 | /* In a LABELED_BLOCK_EXPR node. */ |
749 | #define LABELED_BLOCK_LABEL(NODE) TREE_OPERAND (NODE, 0) | |
750 | #define LABELED_BLOCK_BODY(NODE) TREE_OPERAND (NODE, 1) | |
751 | ||
752 | /* In a EXIT_BLOCK_EXPR node. */ | |
753 | #define EXIT_BLOCK_LABELED_BLOCK(NODE) TREE_OPERAND (NODE, 0) | |
754 | #define EXIT_BLOCK_RETURN(NODE) TREE_OPERAND (NODE, 1) | |
755 | ||
756 | /* In a LOOP_EXPR node. */ | |
757 | #define LOOP_EXPR_BODY(NODE) TREE_OPERAND (NODE, 0) | |
758 | ||
dadafe54 | 759 | /* In a EXPR_WITH_FILE_LOCATION node. */ |
bf1e5319 | 760 | #define EXPR_WFL_NODE(NODE) TREE_OPERAND((NODE), 0) |
86fff623 MM |
761 | #define EXPR_WFL_FILENAME(NODE) \ |
762 | (IDENTIFIER_POINTER (EXPR_WFL_FILENAME_NODE ((NODE)))) | |
763 | #define EXPR_WFL_FILENAME_NODE(NODE) TREE_OPERAND((NODE), 1) | |
12b195d9 ML |
764 | #define EXPR_WFL_LINENO(NODE) (EXPR_CHECK (NODE)->exp.complexity >> 12) |
765 | #define EXPR_WFL_COLNO(NODE) (EXPR_CHECK (NODE)->exp.complexity & 0xfff) | |
766 | #define EXPR_WFL_LINECOL(NODE) (EXPR_CHECK (NODE)->exp.complexity) | |
bf1e5319 APB |
767 | #define EXPR_WFL_SET_LINECOL(NODE, LINE, COL) \ |
768 | (EXPR_WFL_LINECOL(NODE) = ((LINE) << 12) | ((COL) & 0xfff)) | |
dadafe54 | 769 | #define EXPR_WFL_EMIT_LINE_NOTE(NODE) ((NODE)->common.public_flag) |
bf1e5319 | 770 | |
61131fa2 RS |
771 | struct tree_exp |
772 | { | |
773 | char common[sizeof (struct tree_common)]; | |
774 | int complexity; | |
775 | union tree_node *operands[1]; | |
776 | }; | |
777 | \f | |
8da1b058 | 778 | /* In a BLOCK node. */ |
12b195d9 | 779 | #define BLOCK_VARS(NODE) (BLOCK_CHECK (NODE)->block.vars) |
12b195d9 ML |
780 | #define BLOCK_SUBBLOCKS(NODE) (BLOCK_CHECK (NODE)->block.subblocks) |
781 | #define BLOCK_SUPERCONTEXT(NODE) (BLOCK_CHECK (NODE)->block.supercontext) | |
8da1b058 RS |
782 | /* Note: when changing this, make sure to find the places |
783 | that use chainon or nreverse. */ | |
784 | #define BLOCK_CHAIN(NODE) TREE_CHAIN (NODE) | |
12b195d9 ML |
785 | #define BLOCK_ABSTRACT_ORIGIN(NODE) (BLOCK_CHECK (NODE)->block.abstract_origin) |
786 | #define BLOCK_ABSTRACT(NODE) (BLOCK_CHECK (NODE)->block.abstract_flag) | |
8da1b058 RS |
787 | |
788 | /* Nonzero means that this block is prepared to handle exceptions | |
789 | listed in the BLOCK_VARS slot. */ | |
12b195d9 | 790 | #define BLOCK_HANDLER_BLOCK(NODE) (BLOCK_CHECK (NODE)->block.handler_block_flag) |
8da1b058 | 791 | |
61131fa2 | 792 | struct tree_block |
8da1b058 RS |
793 | { |
794 | char common[sizeof (struct tree_common)]; | |
61131fa2 RS |
795 | |
796 | unsigned handler_block_flag : 1; | |
797 | unsigned abstract_flag : 1; | |
798 | ||
799 | union tree_node *vars; | |
61131fa2 RS |
800 | union tree_node *subblocks; |
801 | union tree_node *supercontext; | |
802 | union tree_node *abstract_origin; | |
8da1b058 RS |
803 | }; |
804 | \f | |
805 | /* Define fields and accessors for nodes representing data types. */ | |
806 | ||
807 | /* See tree.def for documentation of the use of these fields. | |
808 | Look at the documentation of the various ..._TYPE tree codes. */ | |
809 | ||
12b195d9 ML |
810 | #define TYPE_UID(NODE) (TYPE_CHECK (NODE)->type.uid) |
811 | #define TYPE_SIZE(NODE) (TYPE_CHECK (NODE)->type.size) | |
812 | #define TYPE_SIZE_UNIT(NODE) (TYPE_CHECK (NODE)->type.size_unit) | |
813 | #define TYPE_MODE(NODE) (TYPE_CHECK (NODE)->type.mode) | |
814 | #define TYPE_VALUES(NODE) (TYPE_CHECK (NODE)->type.values) | |
815 | #define TYPE_DOMAIN(NODE) (TYPE_CHECK (NODE)->type.values) | |
816 | #define TYPE_FIELDS(NODE) (TYPE_CHECK (NODE)->type.values) | |
817 | #define TYPE_METHODS(NODE) (TYPE_CHECK (NODE)->type.maxval) | |
818 | #define TYPE_VFIELD(NODE) (TYPE_CHECK (NODE)->type.minval) | |
819 | #define TYPE_ARG_TYPES(NODE) (TYPE_CHECK (NODE)->type.values) | |
820 | #define TYPE_METHOD_BASETYPE(NODE) (TYPE_CHECK (NODE)->type.maxval) | |
821 | #define TYPE_OFFSET_BASETYPE(NODE) (TYPE_CHECK (NODE)->type.maxval) | |
822 | #define TYPE_POINTER_TO(NODE) (TYPE_CHECK (NODE)->type.pointer_to) | |
823 | #define TYPE_REFERENCE_TO(NODE) (TYPE_CHECK (NODE)->type.reference_to) | |
824 | #define TYPE_MIN_VALUE(NODE) (TYPE_CHECK (NODE)->type.minval) | |
825 | #define TYPE_MAX_VALUE(NODE) (TYPE_CHECK (NODE)->type.maxval) | |
826 | #define TYPE_PRECISION(NODE) (TYPE_CHECK (NODE)->type.precision) | |
827 | #define TYPE_SYMTAB_ADDRESS(NODE) (TYPE_CHECK (NODE)->type.symtab.address) | |
828 | #define TYPE_SYMTAB_POINTER(NODE) (TYPE_CHECK (NODE)->type.symtab.pointer) | |
829 | #define TYPE_NAME(NODE) (TYPE_CHECK (NODE)->type.name) | |
830 | #define TYPE_NEXT_VARIANT(NODE) (TYPE_CHECK (NODE)->type.next_variant) | |
831 | #define TYPE_MAIN_VARIANT(NODE) (TYPE_CHECK (NODE)->type.main_variant) | |
12b195d9 ML |
832 | #define TYPE_NONCOPIED_PARTS(NODE) (TYPE_CHECK (NODE)->type.noncopied_parts) |
833 | #define TYPE_CONTEXT(NODE) (TYPE_CHECK (NODE)->type.context) | |
834 | #define TYPE_OBSTACK(NODE) (TYPE_CHECK (NODE)->type.obstack) | |
835 | #define TYPE_LANG_SPECIFIC(NODE) (TYPE_CHECK (NODE)->type.lang_specific) | |
8da1b058 | 836 | |
8ff0c1af MM |
837 | /* For aggregate types, information about this type, as a base type |
838 | for itself. Used in a language-dependent way for types that are | |
839 | neither a RECORD_TYPE, QUAL_UNION_TYPE, nor a UNION_TYPE. */ | |
840 | #define TYPE_BINFO(NODE) (TYPE_CHECK (NODE)->type.binfo) | |
841 | ||
41472af8 MM |
842 | /* The (language-specific) typed-based alias set for this type. |
843 | Objects whose TYPE_ALIAS_SETs are different cannot alias each | |
844 | other. If the TYPE_ALIAS_SET is -1, no alias set has yet been | |
845 | assigned to this type. If the TYPE_ALIAS_SET is 0, objects of this | |
846 | type can alias objects of any type. */ | |
847 | #define TYPE_ALIAS_SET(NODE) (TYPE_CHECK (NODE)->type.alias_set) | |
848 | ||
849 | /* Nonzero iff the typed-based alias set for this type has been | |
850 | calculated. */ | |
851 | #define TYPE_ALIAS_SET_KNOWN_P(NODE) \ | |
852 | (TYPE_CHECK (NODE)->type.alias_set != -1) | |
853 | ||
bad1b4ba RK |
854 | /* A TREE_LIST of IDENTIFIER nodes of the attributes that apply |
855 | to this type. */ | |
12b195d9 | 856 | #define TYPE_ATTRIBUTES(NODE) (TYPE_CHECK (NODE)->type.attributes) |
bad1b4ba | 857 | |
869637e6 RS |
858 | /* The alignment necessary for objects of this type. |
859 | The value is an int, measured in bits. */ | |
12b195d9 | 860 | #define TYPE_ALIGN(NODE) (TYPE_CHECK (NODE)->type.align) |
869637e6 | 861 | |
8da1b058 RS |
862 | #define TYPE_STUB_DECL(NODE) (TREE_CHAIN (NODE)) |
863 | ||
3635a54b RK |
864 | /* In a RECORD_TYPE, UNION_TYPE or QUAL_UNION_TYPE, it means the type |
865 | has BLKmode only because it lacks the alignment requirement for | |
866 | its size. */ | |
12b195d9 | 867 | #define TYPE_NO_FORCE_BLK(NODE) (TYPE_CHECK (NODE)->type.no_force_blk_flag) |
8da1b058 RS |
868 | |
869 | /* Nonzero in a type considered volatile as a whole. */ | |
870 | #define TYPE_VOLATILE(NODE) ((NODE)->common.volatile_flag) | |
871 | ||
872 | /* Means this type is const-qualified. */ | |
873 | #define TYPE_READONLY(NODE) ((NODE)->common.readonly_flag) | |
874 | ||
3932261a MM |
875 | /* If nonzero, this type is `restrict'-qualified, in the C sense of |
876 | the term. */ | |
877 | #define TYPE_RESTRICT(NODE) (TYPE_CHECK (NODE)->type.restrict_flag) | |
878 | ||
879 | /* There is a TYPE_QUAL value for each type qualifier. They can be | |
880 | combined by bitwise-or to form the complete set of qualifiers for a | |
881 | type. */ | |
882 | ||
883 | #define TYPE_UNQUALIFIED 0x0 | |
884 | #define TYPE_QUAL_CONST 0x1 | |
885 | #define TYPE_QUAL_VOLATILE 0x2 | |
886 | #define TYPE_QUAL_RESTRICT 0x4 | |
887 | ||
888 | /* The set of type qualifiers for this type. */ | |
889 | #define TYPE_QUALS(NODE) \ | |
14a774a9 RK |
890 | ((TYPE_READONLY(NODE) * TYPE_QUAL_CONST) \ |
891 | | (TYPE_VOLATILE(NODE) * TYPE_QUAL_VOLATILE) \ | |
892 | | (TYPE_RESTRICT(NODE) * TYPE_QUAL_RESTRICT)) | |
3932261a | 893 | |
9f86614b | 894 | /* These flags are available for each language front end to use internally. */ |
12b195d9 ML |
895 | #define TYPE_LANG_FLAG_0(NODE) (TYPE_CHECK (NODE)->type.lang_flag_0) |
896 | #define TYPE_LANG_FLAG_1(NODE) (TYPE_CHECK (NODE)->type.lang_flag_1) | |
897 | #define TYPE_LANG_FLAG_2(NODE) (TYPE_CHECK (NODE)->type.lang_flag_2) | |
898 | #define TYPE_LANG_FLAG_3(NODE) (TYPE_CHECK (NODE)->type.lang_flag_3) | |
899 | #define TYPE_LANG_FLAG_4(NODE) (TYPE_CHECK (NODE)->type.lang_flag_4) | |
900 | #define TYPE_LANG_FLAG_5(NODE) (TYPE_CHECK (NODE)->type.lang_flag_5) | |
901 | #define TYPE_LANG_FLAG_6(NODE) (TYPE_CHECK (NODE)->type.lang_flag_6) | |
8da1b058 | 902 | |
74a3fd26 PB |
903 | /* If set in an ARRAY_TYPE, indicates a string type (for languages |
904 | that distinguish string from array of char). | |
905 | If set in a SET_TYPE, indicates a bitstring type. */ | |
12b195d9 | 906 | #define TYPE_STRING_FLAG(NODE) (TYPE_CHECK (NODE)->type.string_flag) |
74a3fd26 | 907 | |
2fb2b21c PB |
908 | /* If non-NULL, this is a upper bound of the size (in bytes) of an |
909 | object of the given ARRAY_TYPE. This allows temporaries to be allocated. */ | |
910 | #define TYPE_ARRAY_MAX_SIZE(ARRAY_TYPE) TYPE_MAX_VALUE (ARRAY_TYPE) | |
911 | ||
4ac3d994 JM |
912 | /* Indicates that objects of this type must be initialized by calling a |
913 | function when they are created. */ | |
12b195d9 | 914 | #define TYPE_NEEDS_CONSTRUCTING(NODE) (TYPE_CHECK (NODE)->type.needs_constructing_flag) |
4ac3d994 | 915 | |
adb23061 RK |
916 | /* Indicates that objects of this type (a UNION_TYPE), should be passed |
917 | the same way that the first union alternative would be passed. */ | |
12b195d9 | 918 | #define TYPE_TRANSPARENT_UNION(NODE) (TYPE_CHECK (NODE)->type.transparent_union_flag) |
adb23061 | 919 | |
956d6950 | 920 | /* Indicated that objects of this type should be laid out in as |
9e357cd8 | 921 | compact a way as possible. */ |
12b195d9 | 922 | #define TYPE_PACKED(NODE) (TYPE_CHECK (NODE)->type.packed_flag) |
9e357cd8 | 923 | |
8da1b058 RS |
924 | struct tree_type |
925 | { | |
926 | char common[sizeof (struct tree_common)]; | |
927 | union tree_node *values; | |
928 | union tree_node *size; | |
ead17059 | 929 | union tree_node *size_unit; |
bad1b4ba | 930 | union tree_node *attributes; |
8da1b058 RS |
931 | unsigned uid; |
932 | ||
bad1b4ba | 933 | unsigned char precision; |
8da1b058 RS |
934 | #ifdef ONLY_INT_FIELDS |
935 | int mode : 8; | |
936 | #else | |
937 | enum machine_mode mode : 8; | |
938 | #endif | |
bad1b4ba | 939 | |
74a3fd26 | 940 | unsigned string_flag : 1; |
8da1b058 | 941 | unsigned no_force_blk_flag : 1; |
4ac3d994 | 942 | unsigned needs_constructing_flag : 1; |
adb23061 | 943 | unsigned transparent_union_flag : 1; |
9e357cd8 | 944 | unsigned packed_flag : 1; |
3932261a MM |
945 | unsigned restrict_flag : 1; |
946 | ||
8da1b058 RS |
947 | unsigned lang_flag_0 : 1; |
948 | unsigned lang_flag_1 : 1; | |
949 | unsigned lang_flag_2 : 1; | |
950 | unsigned lang_flag_3 : 1; | |
951 | unsigned lang_flag_4 : 1; | |
952 | unsigned lang_flag_5 : 1; | |
953 | unsigned lang_flag_6 : 1; | |
3932261a | 954 | /* room for 3 more bits */ |
8da1b058 | 955 | |
69b78d8d | 956 | unsigned int align; |
8da1b058 RS |
957 | union tree_node *pointer_to; |
958 | union tree_node *reference_to; | |
a0665b77 | 959 | union {int address; char *pointer; } symtab; |
8da1b058 RS |
960 | union tree_node *name; |
961 | union tree_node *minval; | |
962 | union tree_node *maxval; | |
963 | union tree_node *next_variant; | |
964 | union tree_node *main_variant; | |
965 | union tree_node *binfo; | |
966 | union tree_node *noncopied_parts; | |
967 | union tree_node *context; | |
b20e883e | 968 | struct obstack *obstack; |
41472af8 | 969 | int alias_set; |
8da1b058 RS |
970 | /* Points to a structure whose details depend on the language in use. */ |
971 | struct lang_type *lang_specific; | |
972 | }; | |
973 | \f | |
974 | /* Define accessor macros for information about type inheritance | |
975 | and basetypes. | |
976 | ||
977 | A "basetype" means a particular usage of a data type for inheritance | |
978 | in another type. Each such basetype usage has its own "binfo" | |
979 | object to describe it. The binfo object is a TREE_VEC node. | |
980 | ||
981 | Inheritance is represented by the binfo nodes allocated for a | |
982 | given type. For example, given types C and D, such that D is | |
983 | inherited by C, 3 binfo nodes will be allocated: one for describing | |
984 | the binfo properties of C, similarly one for D, and one for | |
985 | describing the binfo properties of D as a base type for C. | |
986 | Thus, given a pointer to class C, one can get a pointer to the binfo | |
987 | of D acting as a basetype for C by looking at C's binfo's basetypes. */ | |
988 | ||
989 | /* The actual data type node being inherited in this basetype. */ | |
990 | #define BINFO_TYPE(NODE) TREE_TYPE (NODE) | |
991 | ||
992 | /* The offset where this basetype appears in its containing type. | |
993 | BINFO_OFFSET slot holds the offset (in bytes) | |
994 | from the base of the complete object to the base of the part of the | |
995 | object that is allocated on behalf of this `type'. | |
996 | This is always 0 except when there is multiple inheritance. */ | |
997 | ||
998 | #define BINFO_OFFSET(NODE) TREE_VEC_ELT ((NODE), 1) | |
999 | #define TYPE_BINFO_OFFSET(NODE) BINFO_OFFSET (TYPE_BINFO (NODE)) | |
7d02bbef | 1000 | #define BINFO_OFFSET_ZEROP(NODE) (integer_zerop (BINFO_OFFSET (NODE))) |
8da1b058 RS |
1001 | |
1002 | /* The virtual function table belonging to this basetype. Virtual | |
1003 | function tables provide a mechanism for run-time method dispatching. | |
1004 | The entries of a virtual function table are language-dependent. */ | |
1005 | ||
1006 | #define BINFO_VTABLE(NODE) TREE_VEC_ELT ((NODE), 2) | |
1007 | #define TYPE_BINFO_VTABLE(NODE) BINFO_VTABLE (TYPE_BINFO (NODE)) | |
1008 | ||
1009 | /* The virtual functions in the virtual function table. This is | |
1010 | a TREE_LIST that is used as an initial approximation for building | |
1011 | a virtual function table for this basetype. */ | |
1012 | #define BINFO_VIRTUALS(NODE) TREE_VEC_ELT ((NODE), 3) | |
1013 | #define TYPE_BINFO_VIRTUALS(NODE) BINFO_VIRTUALS (TYPE_BINFO (NODE)) | |
1014 | ||
0430641b MM |
1015 | /* A vector of binfos for the direct basetypes inherited by this |
1016 | basetype. | |
8da1b058 | 1017 | |
0430641b MM |
1018 | If this basetype describes type D as inherited in C, and if the |
1019 | basetypes of D are E and F, then this vector contains binfos for | |
1020 | inheritance of E and F by C. | |
8da1b058 RS |
1021 | |
1022 | ??? This could probably be done by just allocating the | |
1023 | base types at the end of this TREE_VEC (instead of using | |
1024 | another TREE_VEC). This would simplify the calculation | |
1025 | of how many basetypes a given type had. */ | |
1026 | #define BINFO_BASETYPES(NODE) TREE_VEC_ELT ((NODE), 4) | |
1027 | #define TYPE_BINFO_BASETYPES(NODE) TREE_VEC_ELT (TYPE_BINFO (NODE), 4) | |
1028 | ||
5e1677bc MM |
1029 | /* The number of basetypes for NODE. */ |
1030 | #define BINFO_N_BASETYPES(NODE) \ | |
1031 | (BINFO_BASETYPES (NODE) ? TREE_VEC_LENGTH (BINFO_BASETYPES (NODE)) : 0) | |
1032 | ||
7d02bbef JM |
1033 | /* Accessor macro to get to the Nth basetype of this basetype. */ |
1034 | #define BINFO_BASETYPE(NODE,N) TREE_VEC_ELT (BINFO_BASETYPES (NODE), (N)) | |
1035 | #define TYPE_BINFO_BASETYPE(NODE,N) BINFO_TYPE (TREE_VEC_ELT (BINFO_BASETYPES (TYPE_BINFO (NODE)), (N))) | |
1036 | ||
39ac3e4f MM |
1037 | /* For a BINFO record describing a virtual base class, i.e., one where |
1038 | TREE_VIA_VIRTUAL is set, this field assists in locating the virtual | |
1039 | base. The actual contents are language-dependent. Under the old | |
1040 | ABI, the C++ front-end uses a FIELD_DECL whose contents are a | |
1041 | pointer to the virtual base; under the new ABI this field is | |
1042 | instead a INTEGER_CST giving an offset into the vtable where the | |
1043 | offset to the virtual base can be found. */ | |
2cc3ac7a MS |
1044 | #define BINFO_VPTR_FIELD(NODE) TREE_VEC_ELT ((NODE), 5) |
1045 | ||
bbc0e641 JM |
1046 | /* The size of a base class subobject of this type. Not all frontends |
1047 | currently allocate the space for this field. */ | |
7d02bbef JM |
1048 | #define BINFO_SIZE(NODE) TREE_VEC_ELT ((NODE), 6) |
1049 | #define TYPE_BINFO_SIZE(NODE) BINFO_SIZE (TYPE_BINFO (NODE)) | |
8da1b058 RS |
1050 | |
1051 | /* Slot used to build a chain that represents a use of inheritance. | |
1052 | For example, if X is derived from Y, and Y is derived from Z, | |
1053 | then this field can be used to link the binfo node for X to | |
1054 | the binfo node for X's Y to represent the use of inheritance | |
1055 | from X to Y. Similarly, this slot of the binfo node for X's Y | |
1056 | can point to the Z from which Y is inherited (in X's inheritance | |
1057 | hierarchy). In this fashion, one can represent and traverse specific | |
1058 | uses of inheritance using the binfo nodes themselves (instead of | |
1059 | consing new space pointing to binfo nodes). | |
1060 | It is up to the language-dependent front-ends to maintain | |
1061 | this information as necessary. */ | |
1062 | #define BINFO_INHERITANCE_CHAIN(NODE) TREE_VEC_ELT ((NODE), 0) | |
1063 | \f | |
1064 | /* Define fields and accessors for nodes representing declared names. */ | |
1065 | ||
7766fe8e JM |
1066 | /* Nonzero if DECL represents a decl. */ |
1067 | #define DECL_P(DECL) (TREE_CODE_CLASS (TREE_CODE (DECL)) == 'd') | |
8da1b058 RS |
1068 | /* This is the name of the object as written by the user. |
1069 | It is an IDENTIFIER_NODE. */ | |
12b195d9 | 1070 | #define DECL_NAME(NODE) (DECL_CHECK (NODE)->decl.name) |
8da1b058 RS |
1071 | /* This is the name of the object as the assembler will see it |
1072 | (but before any translations made by ASM_OUTPUT_LABELREF). | |
1073 | Often this is the same as DECL_NAME. | |
1074 | It is an IDENTIFIER_NODE. */ | |
12b195d9 | 1075 | #define DECL_ASSEMBLER_NAME(NODE) (DECL_CHECK (NODE)->decl.assembler_name) |
868e8789 DE |
1076 | /* Records the section name in a section attribute. Used to pass |
1077 | the name from decl_attributes to make_function_rtl and make_decl_rtl. */ | |
12b195d9 | 1078 | #define DECL_SECTION_NAME(NODE) (DECL_CHECK (NODE)->decl.section_name) |
9b800101 | 1079 | /* For FIELD_DECLs, this is the |
3635a54b RK |
1080 | RECORD_TYPE, UNION_TYPE, or QUAL_UNION_TYPE node that the field is |
1081 | a member of. For VAR_DECL, PARM_DECL, FUNCTION_DECL, LABEL_DECL, | |
a082c85a JM |
1082 | and CONST_DECL nodes, this points to either the FUNCTION_DECL for the |
1083 | containing function, the RECORD_TYPE or UNION_TYPE for the containing | |
1084 | type, or NULL_TREE if the given decl has "file scope". */ | |
12b195d9 ML |
1085 | #define DECL_CONTEXT(NODE) (DECL_CHECK (NODE)->decl.context) |
1086 | #define DECL_FIELD_CONTEXT(NODE) (DECL_CHECK (NODE)->decl.context) | |
77cf75a8 RK |
1087 | /* In a DECL this is the field where configuration dependent machine |
1088 | attributes are store */ | |
12b195d9 | 1089 | #define DECL_MACHINE_ATTRIBUTES(NODE) (DECL_CHECK (NODE)->decl.machine_attributes) |
8da1b058 RS |
1090 | /* In a FIELD_DECL, this is the field position, counting in bits, |
1091 | of the bit closest to the beginning of the structure. */ | |
12b195d9 | 1092 | #define DECL_FIELD_BITPOS(NODE) (DECL_CHECK (NODE)->decl.arguments) |
8da1b058 | 1093 | /* In a FIELD_DECL, this indicates whether the field was a bit-field and |
8e148bef RS |
1094 | if so, the type that was originally specified for it. |
1095 | TREE_TYPE may have been modified (in finish_struct). */ | |
12b195d9 | 1096 | #define DECL_BIT_FIELD_TYPE(NODE) (DECL_CHECK (NODE)->decl.result) |
8da1b058 RS |
1097 | /* In FUNCTION_DECL, a chain of ..._DECL nodes. */ |
1098 | /* VAR_DECL and PARM_DECL reserve the arguments slot | |
1099 | for language-specific uses. */ | |
12b195d9 | 1100 | #define DECL_ARGUMENTS(NODE) (DECL_CHECK (NODE)->decl.arguments) |
8da1b058 | 1101 | /* In FUNCTION_DECL, holds the decl for the return value. */ |
12b195d9 | 1102 | #define DECL_RESULT(NODE) (DECL_CHECK (NODE)->decl.result) |
9506a28d | 1103 | /* For a TYPE_DECL, holds the "original" type. (TREE_TYPE has the copy.) */ |
12b195d9 | 1104 | #define DECL_ORIGINAL_TYPE(NODE) (DECL_CHECK (NODE)->decl.result) |
8da1b058 | 1105 | /* In PARM_DECL, holds the type as written (perhaps a function or array). */ |
12b195d9 | 1106 | #define DECL_ARG_TYPE_AS_WRITTEN(NODE) (DECL_CHECK (NODE)->decl.result) |
8da1b058 RS |
1107 | /* For a FUNCTION_DECL, holds the tree of BINDINGs. |
1108 | For a VAR_DECL, holds the initial value. | |
1109 | For a PARM_DECL, not used--default | |
1110 | values for parameters are encoded in the type of the function, | |
1111 | not in the PARM_DECL slot. */ | |
12b195d9 | 1112 | #define DECL_INITIAL(NODE) (DECL_CHECK (NODE)->decl.initial) |
8da1b058 RS |
1113 | /* For a PARM_DECL, records the data type used to pass the argument, |
1114 | which may be different from the type seen in the program. */ | |
12b195d9 | 1115 | #define DECL_ARG_TYPE(NODE) (DECL_CHECK (NODE)->decl.initial) /* In PARM_DECL. */ |
3635a54b RK |
1116 | /* For a FIELD_DECL in a QUAL_UNION_TYPE, records the expression, which |
1117 | if nonzero, indicates that the field occupies the type. */ | |
12b195d9 | 1118 | #define DECL_QUALIFIER(NODE) (DECL_CHECK (NODE)->decl.initial) |
8da1b058 | 1119 | /* These two fields describe where in the source code the declaration was. */ |
12b195d9 ML |
1120 | #define DECL_SOURCE_FILE(NODE) (DECL_CHECK (NODE)->decl.filename) |
1121 | #define DECL_SOURCE_LINE(NODE) (DECL_CHECK (NODE)->decl.linenum) | |
8da1b058 RS |
1122 | /* Holds the size of the datum, as a tree expression. |
1123 | Need not be constant. */ | |
12b195d9 | 1124 | #define DECL_SIZE(NODE) (DECL_CHECK (NODE)->decl.size) |
8da1b058 | 1125 | /* Holds the alignment required for the datum. */ |
12b195d9 | 1126 | #define DECL_ALIGN(NODE) (DECL_CHECK (NODE)->decl.frame_size.u) |
17c73321 RK |
1127 | /* Holds the machine mode corresponding to the declaration of a variable or |
1128 | field. Always equal to TYPE_MODE (TREE_TYPE (decl)) except for a | |
1129 | FIELD_DECL. */ | |
12b195d9 | 1130 | #define DECL_MODE(NODE) (DECL_CHECK (NODE)->decl.mode) |
17c73321 RK |
1131 | /* Holds the RTL expression for the value of a variable or function. If |
1132 | PROMOTED_MODE is defined, the mode of this expression may not be same | |
1133 | as DECL_MODE. In that case, DECL_MODE contains the mode corresponding | |
1134 | to the variable's data type, while the mode | |
1135 | of DECL_RTL is the mode actually used to contain the data. */ | |
12b195d9 | 1136 | #define DECL_RTL(NODE) (DECL_CHECK (NODE)->decl.rtl) |
0dfa1860 MM |
1137 | /* Holds an INSN_LIST of all of the live ranges in which the variable |
1138 | has been moved to a possibly different register. */ | |
12b195d9 | 1139 | #define DECL_LIVE_RANGE_RTL(NODE) (DECL_CHECK (NODE)->decl.live_range_rtl) |
8da1b058 RS |
1140 | /* For PARM_DECL, holds an RTL for the stack slot or register |
1141 | where the data was actually passed. */ | |
12b195d9 | 1142 | #define DECL_INCOMING_RTL(NODE) (DECL_CHECK (NODE)->decl.saved_insns.r) |
8da1b058 | 1143 | /* For FUNCTION_DECL, if it is inline, holds the saved insn chain. */ |
49ad7cfa | 1144 | #define DECL_SAVED_INSNS(NODE) (DECL_CHECK (NODE)->decl.saved_insns.f) |
66321686 RS |
1145 | /* For FUNCTION_DECL, if it is inline, |
1146 | holds the size of the stack frame, as an integer. */ | |
12b195d9 | 1147 | #define DECL_FRAME_SIZE(NODE) (DECL_CHECK (NODE)->decl.frame_size.i) |
66321686 RS |
1148 | /* For FUNCTION_DECL, if it is built-in, |
1149 | this identifies which built-in operation it is. */ | |
26db82d8 BS |
1150 | #define DECL_FUNCTION_CODE(NODE) (DECL_CHECK (NODE)->decl.frame_size.f.code) |
1151 | #define DECL_SET_FUNCTION_CODE(NODE,VAL) (DECL_CHECK (NODE)->decl.frame_size.f.code = (VAL)) | |
77f934bb | 1152 | /* For a FIELD_DECL, holds the size of the member as an integer. */ |
12b195d9 | 1153 | #define DECL_FIELD_SIZE(NODE) (DECL_CHECK (NODE)->decl.saved_insns.i) |
8da1b058 RS |
1154 | |
1155 | /* The DECL_VINDEX is used for FUNCTION_DECLS in two different ways. | |
1156 | Before the struct containing the FUNCTION_DECL is laid out, | |
1157 | DECL_VINDEX may point to a FUNCTION_DECL in a base class which | |
1158 | is the FUNCTION_DECL which this FUNCTION_DECL will replace as a virtual | |
1159 | function. When the class is laid out, this pointer is changed | |
1160 | to an INTEGER_CST node which is suitable for use as an index | |
1161 | into the virtual function table. */ | |
12b195d9 | 1162 | #define DECL_VINDEX(NODE) (DECL_CHECK (NODE)->decl.vindex) |
8da1b058 RS |
1163 | /* For FIELD_DECLS, DECL_FCONTEXT is the *first* baseclass in |
1164 | which this FIELD_DECL is defined. This information is needed when | |
1165 | writing debugging information about vfield and vbase decls for C++. */ | |
12b195d9 | 1166 | #define DECL_FCONTEXT(NODE) (DECL_CHECK (NODE)->decl.vindex) |
8da1b058 | 1167 | |
0e77444b | 1168 | /* Every ..._DECL node gets a unique number. */ |
12b195d9 | 1169 | #define DECL_UID(NODE) (DECL_CHECK (NODE)->decl.uid) |
0e77444b | 1170 | |
c5caa350 CH |
1171 | /* For any sort of a ..._DECL node, this points to the original (abstract) |
1172 | decl node which this decl is an instance of, or else it is NULL indicating | |
4a7d05dc DE |
1173 | that this decl is not an instance of some other decl. For example, |
1174 | in a nested declaration of an inline function, this points back to the | |
1175 | definition. */ | |
12b195d9 | 1176 | #define DECL_ABSTRACT_ORIGIN(NODE) (DECL_CHECK (NODE)->decl.abstract_origin) |
c5caa350 | 1177 | |
02e24c7a MM |
1178 | /* Like DECL_ABSTRACT_ORIGIN, but returns NODE if there's no abstract |
1179 | origin. This is useful when setting the DECL_ABSTRACT_ORIGIN. */ | |
1180 | #define DECL_ORIGIN(NODE) \ | |
1181 | (DECL_ABSTRACT_ORIGIN (NODE) ? DECL_ABSTRACT_ORIGIN (NODE) : NODE) | |
1182 | ||
c5caa350 CH |
1183 | /* Nonzero for any sort of ..._DECL node means this decl node represents |
1184 | an inline instance of some original (abstract) decl from an inline function; | |
3d62d651 ZW |
1185 | suppress any warnings about shadowing some other variable. |
1186 | FUNCTION_DECL nodes can also have their abstract origin set to themselves | |
1187 | (see save_for_inline_copying). */ | |
1188 | #define DECL_FROM_INLINE(NODE) (DECL_ABSTRACT_ORIGIN (NODE) != (tree) 0 \ | |
1189 | && DECL_ABSTRACT_ORIGIN (NODE) != (NODE)) | |
8da1b058 RS |
1190 | |
1191 | /* Nonzero if a _DECL means that the name of this decl should be ignored | |
1192 | for symbolic debug purposes. */ | |
12b195d9 | 1193 | #define DECL_IGNORED_P(NODE) (DECL_CHECK (NODE)->decl.ignored_flag) |
8da1b058 | 1194 | |
c5caa350 CH |
1195 | /* Nonzero for a given ..._DECL node means that this node represents an |
1196 | "abstract instance" of the given declaration (e.g. in the original | |
1197 | declaration of an inline function). When generating symbolic debugging | |
9faa82d8 | 1198 | information, we mustn't try to generate any address information for nodes |
c5caa350 CH |
1199 | marked as "abstract instances" because we don't actually generate |
1200 | any code or allocate any data space for such instances. */ | |
12b195d9 | 1201 | #define DECL_ABSTRACT(NODE) (DECL_CHECK (NODE)->decl.abstract_flag) |
c5caa350 | 1202 | |
3110a56e RS |
1203 | /* Nonzero if a _DECL means that no warnings should be generated just |
1204 | because this decl is unused. */ | |
12b195d9 | 1205 | #define DECL_IN_SYSTEM_HEADER(NODE) (DECL_CHECK (NODE)->decl.in_system_header_flag) |
3110a56e | 1206 | |
2c0d84d6 MS |
1207 | /* Nonzero for a given ..._DECL node means that this node should be |
1208 | put in .common, if possible. If a DECL_INITIAL is given, and it | |
1209 | is not error_mark_node, then the decl cannot be put in .common. */ | |
12b195d9 | 1210 | #define DECL_COMMON(NODE) (DECL_CHECK (NODE)->decl.common_flag) |
2c0d84d6 | 1211 | |
3110a56e | 1212 | /* Language-specific decl information. */ |
12b195d9 | 1213 | #define DECL_LANG_SPECIFIC(NODE) (DECL_CHECK (NODE)->decl.lang_specific) |
8da1b058 RS |
1214 | |
1215 | /* In a VAR_DECL or FUNCTION_DECL, | |
1216 | nonzero means external reference: | |
1217 | do not allocate storage, and refer to a definition elsewhere. */ | |
12b195d9 | 1218 | #define DECL_EXTERNAL(NODE) (DECL_CHECK (NODE)->decl.external_flag) |
8da1b058 | 1219 | |
2ce3c6c6 JM |
1220 | /* In a VAR_DECL for a RECORD_TYPE, sets number for non-init_priority |
1221 | initializatons. */ | |
1222 | #define DEFAULT_INIT_PRIORITY 65535 | |
1223 | #define MAX_INIT_PRIORITY 65535 | |
9a6e70c9 | 1224 | #define MAX_RESERVED_INIT_PRIORITY 100 |
2ce3c6c6 | 1225 | |
60e9e4b7 DE |
1226 | /* In a TYPE_DECL |
1227 | nonzero means the detail info about this type is not dumped into stabs. | |
5a783256 | 1228 | Instead it will generate cross reference ('x') of names. |
60e9e4b7 | 1229 | This uses the same flag as DECL_EXTERNAL. */ |
12b195d9 | 1230 | #define TYPE_DECL_SUPPRESS_DEBUG(NODE) (DECL_CHECK (NODE)->decl.external_flag) |
60e9e4b7 DE |
1231 | |
1232 | ||
a5f99f01 | 1233 | /* In VAR_DECL and PARM_DECL nodes, nonzero means declared `register'. */ |
12b195d9 | 1234 | #define DECL_REGISTER(NODE) (DECL_CHECK (NODE)->decl.regdecl_flag) |
a5f99f01 RK |
1235 | /* In LABEL_DECL nodes, nonzero means that an error message about |
1236 | jumping into such a binding contour has been printed for this label. */ | |
12b195d9 | 1237 | #define DECL_ERROR_ISSUED(NODE) (DECL_CHECK (NODE)->decl.regdecl_flag) |
5a1c7968 | 1238 | /* In a FIELD_DECL, indicates this field should be bit-packed. */ |
12b195d9 | 1239 | #define DECL_PACKED(NODE) (DECL_CHECK (NODE)->decl.regdecl_flag) |
a5f99f01 RK |
1240 | /* In a FUNCTION_DECL with a non-zero DECL_CONTEXT, indicates that a |
1241 | static chain is not needed. */ | |
12b195d9 | 1242 | #define DECL_NO_STATIC_CHAIN(NODE) (DECL_CHECK (NODE)->decl.regdecl_flag) |
8da1b058 RS |
1243 | |
1244 | /* Nonzero in a ..._DECL means this variable is ref'd from a nested function. | |
1245 | For VAR_DECL nodes, PARM_DECL nodes, and FUNCTION_DECL nodes. | |
1246 | ||
1247 | For LABEL_DECL nodes, nonzero if nonlocal gotos to the label are permitted. | |
1248 | ||
1249 | Also set in some languages for variables, etc., outside the normal | |
1250 | lexical scope, such as class instance variables. */ | |
12b195d9 | 1251 | #define DECL_NONLOCAL(NODE) (DECL_CHECK (NODE)->decl.nonlocal_flag) |
8da1b058 RS |
1252 | |
1253 | /* Nonzero in a FUNCTION_DECL means this function can be substituted | |
1254 | where it is called. */ | |
12b195d9 | 1255 | #define DECL_INLINE(NODE) (DECL_CHECK (NODE)->decl.inline_flag) |
8da1b058 RS |
1256 | |
1257 | /* Nonzero in a FUNCTION_DECL means this is a built-in function | |
1258 | that is not specified by ansi C and that users are supposed to be allowed | |
1259 | to redefine for any purpose whatever. */ | |
1260 | #define DECL_BUILT_IN_NONANSI(NODE) ((NODE)->common.unsigned_flag) | |
1261 | ||
140592a0 AG |
1262 | /* Nonzero in a FUNCTION_DECL means this function should be treated |
1263 | as if it were a malloc, meaning it returns a pointer that is | |
1264 | not an alias. */ | |
1265 | #define DECL_IS_MALLOC(NODE) (DECL_CHECK (NODE)->decl.malloc_flag) | |
1266 | ||
8da1b058 RS |
1267 | /* Nonzero in a FIELD_DECL means it is a bit field, and must be accessed |
1268 | specially. */ | |
12b195d9 | 1269 | #define DECL_BIT_FIELD(NODE) (DECL_CHECK (NODE)->decl.bit_field_flag) |
8da1b058 RS |
1270 | /* In a LABEL_DECL, nonzero means label was defined inside a binding |
1271 | contour that restored a stack level and which is now exited. */ | |
12b195d9 | 1272 | #define DECL_TOO_LATE(NODE) (DECL_CHECK (NODE)->decl.bit_field_flag) |
26db82d8 | 1273 | |
8da1b058 | 1274 | /* In a FUNCTION_DECL, nonzero means a built in function. */ |
26db82d8 BS |
1275 | #define DECL_BUILT_IN(NODE) (DECL_BUILT_IN_CLASS (NODE) != NOT_BUILT_IN) |
1276 | /* For a builtin function, identify which part of the compiler defined it. */ | |
c465d914 | 1277 | #define DECL_BUILT_IN_CLASS(NODE) (DECL_CHECK (NODE)->decl.frame_size.f.bclass) |
26db82d8 | 1278 | |
b8af45d0 RS |
1279 | /* In a VAR_DECL that's static, |
1280 | nonzero if the space is in the text section. */ | |
12b195d9 | 1281 | #define DECL_IN_TEXT_SECTION(NODE) (DECL_CHECK (NODE)->decl.bit_field_flag) |
8da1b058 | 1282 | |
5a1c7968 | 1283 | /* Used in VAR_DECLs to indicate that the variable is a vtable. |
2458b9c0 JM |
1284 | Used in FIELD_DECLs for vtable pointers. |
1285 | Used in FUNCTION_DECLs to indicate that the function is virtual. */ | |
12b195d9 | 1286 | #define DECL_VIRTUAL_P(NODE) (DECL_CHECK (NODE)->decl.virtual_flag) |
8da1b058 | 1287 | |
30801830 JM |
1288 | /* Used to indicate that the linkage status of this DECL is not yet known, |
1289 | so it should not be output now. */ | |
12b195d9 | 1290 | #define DECL_DEFER_OUTPUT(NODE) (DECL_CHECK (NODE)->decl.defer_output) |
30801830 | 1291 | |
adb23061 RK |
1292 | /* Used in PARM_DECLs whose type are unions to indicate that the |
1293 | argument should be passed in the same way that the first union | |
1294 | alternative would be passed. */ | |
12b195d9 | 1295 | #define DECL_TRANSPARENT_UNION(NODE) (DECL_CHECK (NODE)->decl.transparent_union) |
adb23061 | 1296 | |
2c5f4139 JM |
1297 | /* Used in FUNCTION_DECLs to indicate that they should be run automatically |
1298 | at the beginning or end of execution. */ | |
12b195d9 ML |
1299 | #define DECL_STATIC_CONSTRUCTOR(NODE) (DECL_CHECK (NODE)->decl.static_ctor_flag) |
1300 | #define DECL_STATIC_DESTRUCTOR(NODE) (DECL_CHECK (NODE)->decl.static_dtor_flag) | |
2c5f4139 | 1301 | |
3edbc4b9 | 1302 | /* Used to indicate that this DECL represents a compiler-generated entity. */ |
12b195d9 | 1303 | #define DECL_ARTIFICIAL(NODE) (DECL_CHECK (NODE)->decl.artificial_flag) |
3edbc4b9 | 1304 | |
daefd78b | 1305 | /* Used to indicate that this DECL has weak linkage. */ |
12b195d9 | 1306 | #define DECL_WEAK(NODE) (DECL_CHECK (NODE)->decl.weak_flag) |
daefd78b | 1307 | |
c5bd82cb JM |
1308 | /* Used in TREE_PUBLIC decls to indicate that copies of this DECL in |
1309 | multiple translation units should be merged. */ | |
12b195d9 | 1310 | #define DECL_ONE_ONLY(NODE) (DECL_CHECK (NODE)->decl.transparent_union) |
c5bd82cb | 1311 | |
59182242 MM |
1312 | /* Used in a DECL to indicate that, even if it TREE_PUBLIC, it need |
1313 | not be put out unless it is needed in this translation unit. | |
1314 | Entities like this are shared across translation units (like weak | |
1315 | entities), but are guaranteed to be generated by any translation | |
1316 | unit that needs them, and therefore need not be put out anywhere | |
1317 | where they are not needed. DECL_COMDAT is just a hint to the | |
1318 | back-end; it is up to front-ends which set this flag to ensure | |
1319 | that there will never be any harm, other than bloat, in putting out | |
1320 | something which is DECL_COMDAT. */ | |
1321 | #define DECL_COMDAT(NODE) (DECL_CHECK (NODE)->decl.comdat_flag) | |
1322 | ||
07417085 KR |
1323 | /* Used in FUNCTION_DECLs to indicate that function entry and exit should |
1324 | be instrumented with calls to support routines. */ | |
1325 | #define DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT(NODE) ((NODE)->decl.no_instrument_function_entry_exit) | |
1326 | ||
c5c76735 JL |
1327 | /* Used in FUNCTION_DECLs to indicate that check-memory-usage should be |
1328 | disabled in this function. */ | |
7d384cc0 KR |
1329 | #define DECL_NO_CHECK_MEMORY_USAGE(NODE) ((NODE)->decl.no_check_memory_usage) |
1330 | ||
a157febd GK |
1331 | /* Used in FUNCTION_DECLs to indicate that limit-stack-* should be |
1332 | disabled in this function. */ | |
1333 | #define DECL_NO_LIMIT_STACK(NODE) ((NODE)->decl.no_limit_stack) | |
1334 | ||
8da1b058 | 1335 | /* Additional flags for language-specific uses. */ |
12b195d9 ML |
1336 | #define DECL_LANG_FLAG_0(NODE) (DECL_CHECK (NODE)->decl.lang_flag_0) |
1337 | #define DECL_LANG_FLAG_1(NODE) (DECL_CHECK (NODE)->decl.lang_flag_1) | |
1338 | #define DECL_LANG_FLAG_2(NODE) (DECL_CHECK (NODE)->decl.lang_flag_2) | |
1339 | #define DECL_LANG_FLAG_3(NODE) (DECL_CHECK (NODE)->decl.lang_flag_3) | |
1340 | #define DECL_LANG_FLAG_4(NODE) (DECL_CHECK (NODE)->decl.lang_flag_4) | |
1341 | #define DECL_LANG_FLAG_5(NODE) (DECL_CHECK (NODE)->decl.lang_flag_5) | |
1342 | #define DECL_LANG_FLAG_6(NODE) (DECL_CHECK (NODE)->decl.lang_flag_6) | |
1343 | #define DECL_LANG_FLAG_7(NODE) (DECL_CHECK (NODE)->decl.lang_flag_7) | |
8da1b058 | 1344 | |
27da1b4d MK |
1345 | /* Used to indicate that the pointer to this DECL cannot be treated as |
1346 | an address constant. */ | |
1347 | #define DECL_NON_ADDR_CONST_P(NODE) (DECL_CHECK (NODE)->decl.non_addr_const_p) | |
1348 | ||
3932261a MM |
1349 | /* Used to indicate an alias set for the memory pointed to by this |
1350 | particular FIELD_DECL, PARM_DECL, or VAR_DECL, which must have | |
1351 | pointer (or reference) type. */ | |
1352 | #define DECL_POINTER_ALIAS_SET(NODE) \ | |
1353 | (DECL_CHECK (NODE)->decl.pointer_alias_set) | |
1354 | ||
1355 | /* Nonzero if an alias set has been assigned to this declaration. */ | |
1356 | #define DECL_POINTER_ALIAS_SET_KNOWN_P(NODE) \ | |
1357 | (DECL_POINTER_ALIAS_SET (NODE) != - 1) | |
1358 | ||
8da1b058 RS |
1359 | struct tree_decl |
1360 | { | |
1361 | char common[sizeof (struct tree_common)]; | |
1362 | char *filename; | |
1363 | int linenum; | |
0e77444b | 1364 | unsigned int uid; |
09f532c9 | 1365 | union tree_node *size; |
8da1b058 RS |
1366 | #ifdef ONLY_INT_FIELDS |
1367 | int mode : 8; | |
1368 | #else | |
1369 | enum machine_mode mode : 8; | |
1370 | #endif | |
8da1b058 RS |
1371 | |
1372 | unsigned external_flag : 1; | |
1373 | unsigned nonlocal_flag : 1; | |
1374 | unsigned regdecl_flag : 1; | |
1375 | unsigned inline_flag : 1; | |
1376 | unsigned bit_field_flag : 1; | |
1377 | unsigned virtual_flag : 1; | |
8da1b058 | 1378 | unsigned ignored_flag : 1; |
c5caa350 | 1379 | unsigned abstract_flag : 1; |
8da1b058 | 1380 | |
3110a56e | 1381 | unsigned in_system_header_flag : 1; |
2c0d84d6 | 1382 | unsigned common_flag : 1; |
30801830 | 1383 | unsigned defer_output : 1; |
adb23061 | 1384 | unsigned transparent_union : 1; |
2c5f4139 JM |
1385 | unsigned static_ctor_flag : 1; |
1386 | unsigned static_dtor_flag : 1; | |
3edbc4b9 | 1387 | unsigned artificial_flag : 1; |
daefd78b | 1388 | unsigned weak_flag : 1; |
3110a56e | 1389 | |
8da1b058 RS |
1390 | unsigned lang_flag_0 : 1; |
1391 | unsigned lang_flag_1 : 1; | |
1392 | unsigned lang_flag_2 : 1; | |
1393 | unsigned lang_flag_3 : 1; | |
1394 | unsigned lang_flag_4 : 1; | |
1395 | unsigned lang_flag_5 : 1; | |
1396 | unsigned lang_flag_6 : 1; | |
1397 | unsigned lang_flag_7 : 1; | |
1398 | ||
27da1b4d | 1399 | unsigned non_addr_const_p : 1; |
07417085 | 1400 | unsigned no_instrument_function_entry_exit : 1; |
7d384cc0 | 1401 | unsigned no_check_memory_usage : 1; |
59182242 | 1402 | unsigned comdat_flag : 1; |
140592a0 | 1403 | unsigned malloc_flag : 1; |
a157febd | 1404 | unsigned no_limit_stack : 1; |
27da1b4d | 1405 | |
09f532c9 RK |
1406 | /* For a FUNCTION_DECL, if inline, this is the size of frame needed. |
1407 | If built-in, this is the code for which built-in function. | |
1408 | For other kinds of decls, this is DECL_ALIGN. */ | |
1409 | union { | |
1410 | int i; | |
1411 | unsigned int u; | |
26db82d8 BS |
1412 | struct |
1413 | { | |
1414 | unsigned int code:24; | |
c465d914 | 1415 | unsigned int bclass:8; |
26db82d8 | 1416 | } f; |
09f532c9 RK |
1417 | } frame_size; |
1418 | ||
8da1b058 RS |
1419 | union tree_node *name; |
1420 | union tree_node *context; | |
1421 | union tree_node *arguments; | |
1422 | union tree_node *result; | |
1423 | union tree_node *initial; | |
c5caa350 | 1424 | union tree_node *abstract_origin; |
8da1b058 | 1425 | union tree_node *assembler_name; |
868e8789 | 1426 | union tree_node *section_name; |
77cf75a8 | 1427 | union tree_node *machine_attributes; |
8da1b058 RS |
1428 | struct rtx_def *rtl; /* acts as link to register transfer language |
1429 | (rtl) info */ | |
0dfa1860 | 1430 | struct rtx_def *live_range_rtl; |
77f934bb | 1431 | /* For FUNCTION_DECLs: points to insn that constitutes its definition |
e5e809f4 | 1432 | on the permanent obstack. For FIELD_DECL, this is DECL_FIELD_SIZE. */ |
77f934bb | 1433 | union { |
49ad7cfa | 1434 | struct function *f; |
77f934bb | 1435 | struct rtx_def *r; |
282d22c6 | 1436 | HOST_WIDE_INT i; |
77f934bb | 1437 | } saved_insns; |
8da1b058 | 1438 | union tree_node *vindex; |
3932261a | 1439 | int pointer_alias_set; |
8da1b058 RS |
1440 | /* Points to a structure whose details depend on the language in use. */ |
1441 | struct lang_decl *lang_specific; | |
1442 | }; | |
1443 | \f | |
1444 | /* Define the overall contents of a tree node. | |
1445 | It may be any of the structures declared above | |
1446 | for various types of node. */ | |
1447 | ||
1448 | union tree_node | |
1449 | { | |
1450 | struct tree_common common; | |
1451 | struct tree_int_cst int_cst; | |
1452 | struct tree_real_cst real_cst; | |
1453 | struct tree_string string; | |
1454 | struct tree_complex complex; | |
1455 | struct tree_identifier identifier; | |
1456 | struct tree_decl decl; | |
1457 | struct tree_type type; | |
1458 | struct tree_list list; | |
1459 | struct tree_vec vec; | |
1460 | struct tree_exp exp; | |
61131fa2 | 1461 | struct tree_block block; |
8da1b058 | 1462 | }; |
1d2a8985 | 1463 | \f |
81b3411c BS |
1464 | /* Standard named or nameless data types of the C compiler. */ |
1465 | ||
1466 | enum tree_index | |
1467 | { | |
1468 | TI_ERROR_MARK, | |
1469 | TI_INTQI_TYPE, | |
1470 | TI_INTHI_TYPE, | |
1471 | TI_INTSI_TYPE, | |
1472 | TI_INTDI_TYPE, | |
1473 | TI_INTTI_TYPE, | |
1474 | ||
1475 | TI_UINTQI_TYPE, | |
1476 | TI_UINTHI_TYPE, | |
1477 | TI_UINTSI_TYPE, | |
1478 | TI_UINTDI_TYPE, | |
1479 | TI_UINTTI_TYPE, | |
1480 | ||
1481 | TI_CHAR_TYPE, | |
1482 | TI_SIGNED_CHAR_TYPE, | |
1483 | TI_UNSIGNED_CHAR_TYPE, | |
1484 | TI_INTEGER_TYPE, | |
1485 | TI_UNSIGNED_TYPE, | |
1486 | TI_SHORT_INTEGER_TYPE, | |
1487 | TI_SHORT_UNSIGNED_TYPE, | |
1488 | TI_LONG_INTEGER_TYPE, | |
1489 | TI_LONG_UNSIGNED_TYPE, | |
1490 | TI_LONG_LONG_INTEGER_TYPE, | |
1491 | TI_LONG_LONG_UNSIGNED_TYPE, | |
1492 | ||
1493 | TI_INTEGER_ZERO, | |
1494 | TI_INTEGER_ONE, | |
1495 | TI_NULL_POINTER, | |
1496 | ||
1497 | TI_SIZE_ZERO, | |
1498 | TI_SIZE_ONE, | |
1499 | ||
1500 | TI_COMPLEX_INTEGER_TYPE, | |
1501 | TI_COMPLEX_FLOAT_TYPE, | |
1502 | TI_COMPLEX_DOUBLE_TYPE, | |
1503 | TI_COMPLEX_LONG_DOUBLE_TYPE, | |
1504 | ||
1505 | TI_FLOAT_TYPE, | |
1506 | TI_DOUBLE_TYPE, | |
1507 | TI_LONG_DOUBLE_TYPE, | |
1508 | ||
1509 | TI_VOID_TYPE, | |
1510 | TI_PTR_TYPE, | |
1511 | TI_CONST_PTR_TYPE, | |
1512 | TI_PTRDIFF_TYPE, | |
1513 | TI_VA_LIST_TYPE, | |
1514 | ||
1515 | TI_MAX | |
1516 | }; | |
1517 | ||
1518 | extern tree global_trees[TI_MAX]; | |
1519 | ||
1520 | #define error_mark_node global_trees[TI_ERROR_MARK] | |
1521 | ||
1522 | #define intQI_type_node global_trees[TI_INTQI_TYPE] | |
1523 | #define intHI_type_node global_trees[TI_INTHI_TYPE] | |
1524 | #define intSI_type_node global_trees[TI_INTSI_TYPE] | |
1525 | #define intDI_type_node global_trees[TI_INTDI_TYPE] | |
1526 | #define intTI_type_node global_trees[TI_INTTI_TYPE] | |
1527 | ||
1528 | #define unsigned_intQI_type_node global_trees[TI_UINTQI_TYPE] | |
1529 | #define unsigned_intHI_type_node global_trees[TI_UINTHI_TYPE] | |
1530 | #define unsigned_intSI_type_node global_trees[TI_UINTSI_TYPE] | |
1531 | #define unsigned_intDI_type_node global_trees[TI_UINTDI_TYPE] | |
1532 | #define unsigned_intTI_type_node global_trees[TI_UINTTI_TYPE] | |
1533 | ||
1534 | #define char_type_node global_trees[TI_CHAR_TYPE] | |
1535 | #define signed_char_type_node global_trees[TI_SIGNED_CHAR_TYPE] | |
1536 | #define unsigned_char_type_node global_trees[TI_UNSIGNED_CHAR_TYPE] | |
1537 | #define short_integer_type_node global_trees[TI_SHORT_INTEGER_TYPE] | |
1538 | #define short_unsigned_type_node global_trees[TI_SHORT_UNSIGNED_TYPE] | |
1539 | #define integer_type_node global_trees[TI_INTEGER_TYPE] | |
1540 | #define unsigned_type_node global_trees[TI_UNSIGNED_TYPE] | |
1541 | #define long_integer_type_node global_trees[TI_LONG_INTEGER_TYPE] | |
1542 | #define long_unsigned_type_node global_trees[TI_LONG_UNSIGNED_TYPE] | |
1543 | #define long_long_integer_type_node global_trees[TI_LONG_LONG_INTEGER_TYPE] | |
1544 | #define long_long_unsigned_type_node global_trees[TI_LONG_LONG_UNSIGNED_TYPE] | |
1545 | ||
1546 | #define integer_zero_node global_trees[TI_INTEGER_ZERO] | |
1547 | #define integer_one_node global_trees[TI_INTEGER_ONE] | |
1548 | #define size_zero_node global_trees[TI_SIZE_ZERO] | |
1549 | #define size_one_node global_trees[TI_SIZE_ONE] | |
1550 | #define null_pointer_node global_trees[TI_NULL_POINTER] | |
1551 | ||
1552 | #define float_type_node global_trees[TI_FLOAT_TYPE] | |
1553 | #define double_type_node global_trees[TI_DOUBLE_TYPE] | |
1554 | #define long_double_type_node global_trees[TI_LONG_DOUBLE_TYPE] | |
1555 | ||
1556 | #define complex_integer_type_node global_trees[TI_COMPLEX_INTEGER_TYPE] | |
1557 | #define complex_float_type_node global_trees[TI_COMPLEX_FLOAT_TYPE] | |
1558 | #define complex_double_type_node global_trees[TI_COMPLEX_DOUBLE_TYPE] | |
1559 | #define complex_long_double_type_node global_trees[TI_COMPLEX_LONG_DOUBLE_TYPE] | |
1560 | ||
1561 | #define void_type_node global_trees[TI_VOID_TYPE] | |
fc693822 | 1562 | /* The C type `void *'. */ |
81b3411c | 1563 | #define ptr_type_node global_trees[TI_PTR_TYPE] |
fc693822 | 1564 | /* The C type `const void *'. */ |
81b3411c BS |
1565 | #define const_ptr_type_node global_trees[TI_CONST_PTR_TYPE] |
1566 | #define ptrdiff_type_node global_trees[TI_PTRDIFF_TYPE] | |
1567 | #define va_list_type_node global_trees[TI_VA_LIST_TYPE] | |
1568 | \f | |
f837a861 MM |
1569 | #define NULL_TREE (tree) NULL |
1570 | ||
e5d70561 RK |
1571 | /* The following functions accept a wide integer argument. Rather than |
1572 | having to cast on every function call, we use a macro instead, that is | |
1573 | defined here and in rtl.h. */ | |
1574 | ||
1575 | #ifndef exact_log2 | |
a1d061a1 JL |
1576 | #define exact_log2(N) exact_log2_wide ((unsigned HOST_WIDE_INT) (N)) |
1577 | #define floor_log2(N) floor_log2_wide ((unsigned HOST_WIDE_INT) (N)) | |
e5d70561 | 1578 | #endif |
58782098 KG |
1579 | extern int exact_log2_wide PARAMS ((unsigned HOST_WIDE_INT)); |
1580 | extern int floor_log2_wide PARAMS ((unsigned HOST_WIDE_INT)); | |
e5d70561 | 1581 | |
58782098 KG |
1582 | extern char *oballoc PARAMS ((int)); |
1583 | extern char *permalloc PARAMS ((int)); | |
1584 | extern char *savealloc PARAMS ((int)); | |
1585 | extern char *expralloc PARAMS ((int)); | |
8da1b058 RS |
1586 | |
1587 | /* Lowest level primitive for allocating a node. | |
1588 | The TREE_CODE is the only argument. Contents are initialized | |
1589 | to zero except for a few of the common fields. */ | |
1590 | ||
58782098 KG |
1591 | extern tree make_node PARAMS ((enum tree_code)); |
1592 | extern tree make_lang_type PARAMS ((enum tree_code)); | |
1593 | extern tree (*make_lang_type_fn) PARAMS ((enum tree_code)); | |
8da1b058 RS |
1594 | |
1595 | /* Make a copy of a node, with all the same contents except | |
1596 | for TREE_PERMANENT. (The copy is permanent | |
1597 | iff nodes being made now are permanent.) */ | |
1598 | ||
58782098 | 1599 | extern tree copy_node PARAMS ((tree)); |
8da1b058 RS |
1600 | |
1601 | /* Make a copy of a chain of TREE_LIST nodes. */ | |
1602 | ||
58782098 | 1603 | extern tree copy_list PARAMS ((tree)); |
8da1b058 RS |
1604 | |
1605 | /* Make a TREE_VEC. */ | |
1606 | ||
58782098 | 1607 | extern tree make_tree_vec PARAMS ((int)); |
8da1b058 RS |
1608 | |
1609 | /* Return the (unique) IDENTIFIER_NODE node for a given name. | |
1610 | The name is supplied as a char *. */ | |
1611 | ||
58782098 | 1612 | extern tree get_identifier PARAMS ((const char *)); |
8da1b058 | 1613 | |
6b9300aa RK |
1614 | /* If an identifier with the name TEXT (a null-terminated string) has |
1615 | previously been referred to, return that node; otherwise return | |
1616 | NULL_TREE. */ | |
1617 | ||
58782098 | 1618 | extern tree maybe_get_identifier PARAMS ((const char *)); |
6b9300aa | 1619 | |
8da1b058 RS |
1620 | /* Construct various types of nodes. */ |
1621 | ||
e5d70561 RK |
1622 | #define build_int_2(LO,HI) \ |
1623 | build_int_2_wide ((HOST_WIDE_INT) (LO), (HOST_WIDE_INT) (HI)) | |
1624 | ||
58782098 KG |
1625 | extern tree build PARAMS ((enum tree_code, tree, ...)); |
1626 | extern tree build_nt PARAMS ((enum tree_code, ...)); | |
1627 | extern tree build_parse_node PARAMS ((enum tree_code, ...)); | |
1628 | ||
1629 | extern tree build_int_2_wide PARAMS ((HOST_WIDE_INT, HOST_WIDE_INT)); | |
1630 | extern tree build_real PARAMS ((tree, REAL_VALUE_TYPE)); | |
1631 | extern tree build_real_from_int_cst PARAMS ((tree, tree)); | |
1632 | extern tree build_complex PARAMS ((tree, tree, tree)); | |
1633 | extern tree build_string PARAMS ((int, const char *)); | |
1634 | extern tree build1 PARAMS ((enum tree_code, tree, tree)); | |
1635 | extern tree build_tree_list PARAMS ((tree, tree)); | |
1636 | extern tree build_decl_list PARAMS ((tree, tree)); | |
1637 | extern tree build_expr_list PARAMS ((tree, tree)); | |
1638 | extern tree build_decl PARAMS ((enum tree_code, tree, tree)); | |
1639 | extern tree build_block PARAMS ((tree, tree, tree, tree, tree)); | |
1640 | extern tree build_expr_wfl PARAMS ((tree, const char *, int, int)); | |
8da1b058 RS |
1641 | |
1642 | /* Construct various nodes representing data types. */ | |
1643 | ||
58782098 KG |
1644 | extern tree make_signed_type PARAMS ((int)); |
1645 | extern tree make_unsigned_type PARAMS ((int)); | |
1646 | extern void set_sizetype PARAMS ((tree)); | |
1647 | extern tree signed_or_unsigned_type PARAMS ((int, tree)); | |
1648 | extern void fixup_unsigned_type PARAMS ((tree)); | |
1649 | extern tree build_pointer_type PARAMS ((tree)); | |
1650 | extern tree build_reference_type PARAMS ((tree)); | |
1651 | extern tree build_index_type PARAMS ((tree)); | |
1652 | extern tree build_index_2_type PARAMS ((tree, tree)); | |
1653 | extern tree build_array_type PARAMS ((tree, tree)); | |
1654 | extern tree build_function_type PARAMS ((tree, tree)); | |
1655 | extern tree build_method_type PARAMS ((tree, tree)); | |
1656 | extern tree build_offset_type PARAMS ((tree, tree)); | |
1657 | extern tree build_complex_type PARAMS ((tree)); | |
1658 | extern tree array_type_nelts PARAMS ((tree)); | |
1659 | ||
1660 | extern tree value_member PARAMS ((tree, tree)); | |
1661 | extern tree purpose_member PARAMS ((tree, tree)); | |
1662 | extern tree binfo_member PARAMS ((tree, tree)); | |
1663 | extern int attribute_hash_list PARAMS ((tree)); | |
1664 | extern int attribute_list_equal PARAMS ((tree, tree)); | |
1665 | extern int attribute_list_contained PARAMS ((tree, tree)); | |
1666 | extern int tree_int_cst_equal PARAMS ((tree, tree)); | |
1667 | extern int tree_int_cst_lt PARAMS ((tree, tree)); | |
1668 | extern int tree_int_cst_sgn PARAMS ((tree)); | |
1669 | extern int index_type_equal PARAMS ((tree, tree)); | |
1670 | extern tree get_inner_array_type PARAMS ((tree)); | |
12cfc830 | 1671 | |
f837a861 MM |
1672 | /* From expmed.c. Since rtl.h is included after tree.h, we can't |
1673 | put the prototype here. Rtl.h does declare the prototype if | |
1674 | tree.h had been included. */ | |
1675 | ||
58782098 | 1676 | extern tree make_tree PARAMS ((tree, struct rtx_def *)); |
8da1b058 | 1677 | \f |
bad1b4ba RK |
1678 | /* Return a type like TTYPE except that its TYPE_ATTRIBUTES |
1679 | is ATTRIBUTE. | |
1680 | ||
1681 | Such modified types already made are recorded so that duplicates | |
1682 | are not made. */ | |
1683 | ||
58782098 KG |
1684 | extern tree build_type_attribute_variant PARAMS ((tree, tree)); |
1685 | extern tree build_decl_attribute_variant PARAMS ((tree, tree)); | |
bad1b4ba | 1686 | |
58782098 KG |
1687 | extern tree merge_machine_decl_attributes PARAMS ((tree, tree)); |
1688 | extern tree merge_machine_type_attributes PARAMS ((tree, tree)); | |
d9525bec BK |
1689 | |
1690 | /* Split a list of declspecs and attributes into two. */ | |
1691 | ||
58782098 | 1692 | extern void split_specs_attrs PARAMS ((tree, tree *, tree *)); |
d9525bec BK |
1693 | |
1694 | /* Strip attributes from a list of combined specs and attrs. */ | |
1695 | ||
58782098 | 1696 | extern tree strip_attrs PARAMS ((tree)); |
d9525bec | 1697 | |
9c130398 DE |
1698 | /* Return 1 if an attribute and its arguments are valid for a decl or type. */ |
1699 | ||
58782098 | 1700 | extern int valid_machine_attribute PARAMS ((tree, tree, tree, tree)); |
9c130398 DE |
1701 | |
1702 | /* Given a tree node and a string, return non-zero if the tree node is | |
1703 | a valid attribute name for the string. */ | |
1704 | ||
58782098 | 1705 | extern int is_attribute_p PARAMS ((const char *, tree)); |
9c130398 DE |
1706 | |
1707 | /* Given an attribute name and a list of attributes, return the list element | |
1708 | of the attribute or NULL_TREE if not found. */ | |
1709 | ||
58782098 | 1710 | extern tree lookup_attribute PARAMS ((const char *, tree)); |
6cb3d314 DE |
1711 | |
1712 | /* Given two attributes lists, return a list of their union. */ | |
1713 | ||
58782098 | 1714 | extern tree merge_attributes PARAMS ((tree, tree)); |
9c130398 | 1715 | |
3932261a MM |
1716 | /* Given a type node TYPE and a TYPE_QUALIFIER_SET, return a type for |
1717 | the same kind of data as TYPE describes. Variants point to the | |
1718 | "main variant" (which has no qualifiers set) via TYPE_MAIN_VARIANT, | |
1719 | and it points to a chain of other variants so that duplicate | |
1720 | variants are never made. Only main variants should ever appear as | |
1721 | types of expressions. */ | |
1722 | ||
58782098 | 1723 | extern tree build_qualified_type PARAMS ((tree, int)); |
3932261a MM |
1724 | |
1725 | /* Like build_qualified_type, but only deals with the `const' and | |
1726 | `volatile' qualifiers. This interface is retained for backwards | |
1727 | compatiblity with the various front-ends; new code should use | |
1728 | build_qualified_type instead. */ | |
8da1b058 | 1729 | |
3932261a MM |
1730 | #define build_type_variant(TYPE, CONST_P, VOLATILE_P) \ |
1731 | build_qualified_type (TYPE, \ | |
1732 | ((CONST_P) ? TYPE_QUAL_CONST : 0) \ | |
1733 | | ((VOLATILE_P) ? TYPE_QUAL_VOLATILE : 0)) | |
8da1b058 | 1734 | |
43100b14 RS |
1735 | /* Make a copy of a type node. */ |
1736 | ||
58782098 | 1737 | extern tree build_type_copy PARAMS ((tree)); |
43100b14 | 1738 | |
8da1b058 RS |
1739 | /* Given a ..._TYPE node, calculate the TYPE_SIZE, TYPE_SIZE_UNIT, |
1740 | TYPE_ALIGN and TYPE_MODE fields. | |
1741 | If called more than once on one node, does nothing except | |
1742 | for the first time. */ | |
1743 | ||
58782098 | 1744 | extern void layout_type PARAMS ((tree)); |
8da1b058 RS |
1745 | |
1746 | /* Given a hashcode and a ..._TYPE node (for which the hashcode was made), | |
1747 | return a canonicalized ..._TYPE node, so that duplicates are not made. | |
1748 | How the hash code is computed is up to the caller, as long as any two | |
1749 | callers that could hash identical-looking type nodes agree. */ | |
1750 | ||
58782098 | 1751 | extern tree type_hash_canon PARAMS ((int, tree)); |
8da1b058 RS |
1752 | |
1753 | /* Given a VAR_DECL, PARM_DECL, RESULT_DECL or FIELD_DECL node, | |
1754 | calculates the DECL_SIZE, DECL_SIZE_UNIT, DECL_ALIGN and DECL_MODE | |
1755 | fields. Call this only once for any given decl node. | |
1756 | ||
1757 | Second argument is the boundary that this field can be assumed to | |
1758 | be starting at (in bits). Zero means it can be assumed aligned | |
1759 | on any boundary that may be needed. */ | |
1760 | ||
58782098 | 1761 | extern void layout_decl PARAMS ((tree, unsigned)); |
8da1b058 | 1762 | |
8da1b058 RS |
1763 | /* Return an expr equal to X but certainly not valid as an lvalue. */ |
1764 | ||
58782098 KG |
1765 | extern tree non_lvalue PARAMS ((tree)); |
1766 | extern tree pedantic_non_lvalue PARAMS ((tree)); | |
8da1b058 | 1767 | |
58782098 KG |
1768 | extern tree convert PARAMS ((tree, tree)); |
1769 | extern tree size_in_bytes PARAMS ((tree)); | |
1770 | extern HOST_WIDE_INT int_size_in_bytes PARAMS ((tree)); | |
1771 | extern tree size_binop PARAMS ((enum tree_code, tree, tree)); | |
1772 | extern tree ssize_binop PARAMS ((enum tree_code, tree, tree)); | |
1773 | extern tree size_int_wide PARAMS ((unsigned HOST_WIDE_INT, | |
f8dac6eb R |
1774 | unsigned HOST_WIDE_INT, int)); |
1775 | #define size_int(L) size_int_2 ((L), 0, 0) | |
1776 | #define bitsize_int(L, H) size_int_2 ((L), (H), 1) | |
1777 | #define size_int_2(L, H, T) \ | |
1778 | size_int_wide ((unsigned HOST_WIDE_INT) (L), \ | |
1779 | (unsigned HOST_WIDE_INT) (H), (T)) | |
1780 | ||
58782098 KG |
1781 | extern tree round_up PARAMS ((tree, int)); |
1782 | extern tree get_pending_sizes PARAMS ((void)); | |
1783 | extern void put_pending_sizes PARAMS ((tree)); | |
8da1b058 RS |
1784 | |
1785 | /* Type for sizes of data-type. */ | |
1786 | ||
f8dac6eb R |
1787 | #define BITS_PER_UNIT_LOG \ |
1788 | ((BITS_PER_UNIT > 1) + (BITS_PER_UNIT > 2) + (BITS_PER_UNIT > 4) \ | |
1789 | + (BITS_PER_UNIT > 8) + (BITS_PER_UNIT > 16) + (BITS_PER_UNIT > 32) \ | |
1790 | + (BITS_PER_UNIT > 64) + (BITS_PER_UNIT > 128) + (BITS_PER_UNIT > 256)) | |
1791 | ||
896cced4 RH |
1792 | struct sizetype_tab |
1793 | { | |
1794 | tree xsizetype, xbitsizetype; | |
e814ca97 RH |
1795 | tree xssizetype, xusizetype; |
1796 | tree xsbitsizetype, xubitsizetype; | |
896cced4 RH |
1797 | }; |
1798 | ||
1799 | extern struct sizetype_tab sizetype_tab; | |
1800 | ||
1801 | #define sizetype sizetype_tab.xsizetype | |
1802 | #define bitsizetype sizetype_tab.xbitsizetype | |
e814ca97 RH |
1803 | #define ssizetype sizetype_tab.xssizetype |
1804 | #define usizetype sizetype_tab.xusizetype | |
1805 | #define sbitsizetype sizetype_tab.xsbitsizetype | |
1806 | #define ubitsizetype sizetype_tab.xubitsizetype | |
8da1b058 | 1807 | |
8294accf PB |
1808 | /* If nonzero, an upper limit on alignment of structure fields, in bits. */ |
1809 | extern int maximum_field_alignment; | |
1810 | ||
abc95ed3 | 1811 | /* If non-zero, the alignment of a bitstring or (power-)set value, in bits. */ |
8294accf PB |
1812 | extern int set_alignment; |
1813 | ||
8da1b058 RS |
1814 | /* Concatenate two lists (chains of TREE_LIST nodes) X and Y |
1815 | by making the last node in X point to Y. | |
1816 | Returns X, except if X is 0 returns Y. */ | |
1817 | ||
58782098 | 1818 | extern tree chainon PARAMS ((tree, tree)); |
8da1b058 RS |
1819 | |
1820 | /* Make a new TREE_LIST node from specified PURPOSE, VALUE and CHAIN. */ | |
1821 | ||
58782098 KG |
1822 | extern tree tree_cons PARAMS ((tree, tree, tree)); |
1823 | extern tree perm_tree_cons PARAMS ((tree, tree, tree)); | |
1824 | extern tree temp_tree_cons PARAMS ((tree, tree, tree)); | |
1825 | extern tree saveable_tree_cons PARAMS ((tree, tree, tree)); | |
1826 | extern tree decl_tree_cons PARAMS ((tree, tree, tree)); | |
1827 | extern tree expr_tree_cons PARAMS ((tree, tree, tree)); | |
8da1b058 RS |
1828 | |
1829 | /* Return the last tree node in a chain. */ | |
1830 | ||
58782098 | 1831 | extern tree tree_last PARAMS ((tree)); |
8da1b058 RS |
1832 | |
1833 | /* Reverse the order of elements in a chain, and return the new head. */ | |
1834 | ||
58782098 | 1835 | extern tree nreverse PARAMS ((tree)); |
8da1b058 RS |
1836 | |
1837 | /* Returns the length of a chain of nodes | |
1838 | (number of chain pointers to follow before reaching a null pointer). */ | |
1839 | ||
58782098 | 1840 | extern int list_length PARAMS ((tree)); |
8da1b058 RS |
1841 | |
1842 | /* integer_zerop (tree x) is nonzero if X is an integer constant of value 0 */ | |
1843 | ||
58782098 | 1844 | extern int integer_zerop PARAMS ((tree)); |
8da1b058 RS |
1845 | |
1846 | /* integer_onep (tree x) is nonzero if X is an integer constant of value 1 */ | |
1847 | ||
58782098 | 1848 | extern int integer_onep PARAMS ((tree)); |
8da1b058 RS |
1849 | |
1850 | /* integer_all_onesp (tree x) is nonzero if X is an integer constant | |
1851 | all of whose significant bits are 1. */ | |
1852 | ||
58782098 | 1853 | extern int integer_all_onesp PARAMS ((tree)); |
8da1b058 RS |
1854 | |
1855 | /* integer_pow2p (tree x) is nonzero is X is an integer constant with | |
1856 | exactly one bit 1. */ | |
1857 | ||
58782098 | 1858 | extern int integer_pow2p PARAMS ((tree)); |
8da1b058 RS |
1859 | |
1860 | /* staticp (tree x) is nonzero if X is a reference to data allocated | |
1861 | at a fixed address in memory. */ | |
1862 | ||
58782098 | 1863 | extern int staticp PARAMS ((tree)); |
8da1b058 RS |
1864 | |
1865 | /* Gets an error if argument X is not an lvalue. | |
1866 | Also returns 1 if X is an lvalue, 0 if not. */ | |
1867 | ||
58782098 | 1868 | extern int lvalue_or_else PARAMS ((tree, const char *)); |
8da1b058 RS |
1869 | |
1870 | /* save_expr (EXP) returns an expression equivalent to EXP | |
1871 | but it can be used multiple times within context CTX | |
1872 | and only evaluate EXP once. */ | |
1873 | ||
58782098 | 1874 | extern tree save_expr PARAMS ((tree)); |
8da1b058 | 1875 | |
b7f6588d JM |
1876 | /* Returns the index of the first non-tree operand for CODE, or the number |
1877 | of operands if all are trees. */ | |
1878 | ||
58782098 | 1879 | extern int first_rtl_op PARAMS ((enum tree_code)); |
b7f6588d | 1880 | |
679163cf | 1881 | /* unsave_expr (EXP) returns an expression equivalent to EXP but it |
582db8e4 | 1882 | can be used multiple times and will evaluate EXP in its entirety |
679163cf MS |
1883 | each time. */ |
1884 | ||
58782098 | 1885 | extern tree unsave_expr PARAMS ((tree)); |
679163cf | 1886 | |
582db8e4 MM |
1887 | /* Reset EXP in place so that it can be expaned again. Does not |
1888 | recurse into subtrees. */ | |
1889 | ||
58782098 | 1890 | extern void unsave_expr_1 PARAMS ((tree)); |
582db8e4 MM |
1891 | |
1892 | /* Like unsave_expr_1, but recurses into all subtrees. */ | |
679163cf | 1893 | |
58782098 | 1894 | extern tree unsave_expr_now PARAMS ((tree)); |
679163cf | 1895 | |
582db8e4 MM |
1896 | /* If non-null, these are language-specific helper functions for |
1897 | unsave_expr_now. If present, LANG_UNSAVE is called before its | |
1898 | argument (an UNSAVE_EXPR) is to be unsaved, and all other | |
1899 | processing in unsave_expr_now is aborted. LANG_UNSAVE_EXPR_NOW is | |
1900 | called from unsave_expr_1 for language-specific tree codes. */ | |
58782098 KG |
1901 | extern void (*lang_unsave) PARAMS ((tree *)); |
1902 | extern void (*lang_unsave_expr_now) PARAMS ((tree)); | |
0a818f84 | 1903 | |
7380d707 RK |
1904 | /* Return 1 if EXP contains a PLACEHOLDER_EXPR; i.e., if it represents a size |
1905 | or offset that depends on a field within a record. | |
1906 | ||
1907 | Note that we only allow such expressions within simple arithmetic | |
1908 | or a COND_EXPR. */ | |
1909 | ||
58782098 | 1910 | extern int contains_placeholder_p PARAMS ((tree)); |
7380d707 | 1911 | |
b7f6588d JM |
1912 | /* Return 1 if EXP contains any expressions that produce cleanups for an |
1913 | outer scope to deal with. Used by fold. */ | |
1914 | ||
58782098 | 1915 | extern int has_cleanups PARAMS ((tree)); |
b7f6588d | 1916 | |
7380d707 RK |
1917 | /* Given a tree EXP, a FIELD_DECL F, and a replacement value R, |
1918 | return a tree with all occurrences of references to F in a | |
1919 | PLACEHOLDER_EXPR replaced by R. Note that we assume here that EXP | |
1920 | contains only arithmetic expressions. */ | |
1921 | ||
58782098 | 1922 | extern tree substitute_in_expr PARAMS ((tree, tree, tree)); |
7380d707 | 1923 | |
90ca31be RS |
1924 | /* variable_size (EXP) is like save_expr (EXP) except that it |
1925 | is for the special case of something that is part of a | |
1926 | variable size for a data type. It makes special arrangements | |
1927 | to compute the value at the right time when the data type | |
1928 | belongs to a function parameter. */ | |
1929 | ||
58782098 | 1930 | extern tree variable_size PARAMS ((tree)); |
90ca31be | 1931 | |
8da1b058 RS |
1932 | /* stabilize_reference (EXP) returns an reference equivalent to EXP |
1933 | but it can be used multiple times | |
1934 | and only evaluate the subexpressions once. */ | |
1935 | ||
58782098 | 1936 | extern tree stabilize_reference PARAMS ((tree)); |
8da1b058 | 1937 | |
1c8b10bb RK |
1938 | /* Subroutine of stabilize_reference; this is called for subtrees of |
1939 | references. Any expression with side-effects must be put in a SAVE_EXPR | |
1940 | to ensure that it is only evaluated once. */ | |
1941 | ||
58782098 | 1942 | extern tree stabilize_reference_1 PARAMS ((tree)); |
1c8b10bb | 1943 | |
8da1b058 RS |
1944 | /* Return EXP, stripped of any conversions to wider types |
1945 | in such a way that the result of converting to type FOR_TYPE | |
1946 | is the same as if EXP were converted to FOR_TYPE. | |
1947 | If FOR_TYPE is 0, it signifies EXP's type. */ | |
1948 | ||
58782098 | 1949 | extern tree get_unwidened PARAMS ((tree, tree)); |
8da1b058 RS |
1950 | |
1951 | /* Return OP or a simpler expression for a narrower value | |
1952 | which can be sign-extended or zero-extended to give back OP. | |
1953 | Store in *UNSIGNEDP_PTR either 1 if the value should be zero-extended | |
1954 | or 0 if the value should be sign-extended. */ | |
1955 | ||
58782098 | 1956 | extern tree get_narrower PARAMS ((tree, int *)); |
8da1b058 RS |
1957 | |
1958 | /* Given MODE and UNSIGNEDP, return a suitable type-tree | |
1959 | with that mode. | |
1960 | The definition of this resides in language-specific code | |
1961 | as the repertoire of available types may vary. */ | |
1962 | ||
58782098 | 1963 | extern tree type_for_mode PARAMS ((enum machine_mode, int)); |
8da1b058 RS |
1964 | |
1965 | /* Given PRECISION and UNSIGNEDP, return a suitable type-tree | |
1966 | for an integer type with at least that precision. | |
1967 | The definition of this resides in language-specific code | |
1968 | as the repertoire of available types may vary. */ | |
1969 | ||
58782098 | 1970 | extern tree type_for_size PARAMS ((unsigned, int)); |
8da1b058 RS |
1971 | |
1972 | /* Given an integer type T, return a type like T but unsigned. | |
1973 | If T is unsigned, the value is T. | |
1974 | The definition of this resides in language-specific code | |
1975 | as the repertoire of available types may vary. */ | |
1976 | ||
58782098 | 1977 | extern tree unsigned_type PARAMS ((tree)); |
8da1b058 RS |
1978 | |
1979 | /* Given an integer type T, return a type like T but signed. | |
1980 | If T is signed, the value is T. | |
1981 | The definition of this resides in language-specific code | |
1982 | as the repertoire of available types may vary. */ | |
1983 | ||
58782098 | 1984 | extern tree signed_type PARAMS ((tree)); |
8da1b058 RS |
1985 | |
1986 | /* This function must be defined in the language-specific files. | |
1987 | expand_expr calls it to build the cleanup-expression for a TARGET_EXPR. | |
1988 | This is defined in a language-specific file. */ | |
1989 | ||
58782098 | 1990 | extern tree maybe_build_cleanup PARAMS ((tree)); |
8da1b058 RS |
1991 | |
1992 | /* Given an expression EXP that may be a COMPONENT_REF or an ARRAY_REF, | |
1993 | look for nested component-refs or array-refs at constant positions | |
1994 | and find the ultimate containing object, which is returned. */ | |
1995 | ||
58782098 | 1996 | extern tree get_inner_reference PARAMS ((tree, int *, int *, tree *, |
b4523ff4 RK |
1997 | enum machine_mode *, int *, |
1998 | int *, int *)); | |
8da1b058 | 1999 | |
140b60b4 MM |
2000 | /* Given a DECL or TYPE, return the scope in which it was declared, or |
2001 | NUL_TREE if there is no containing scope. */ | |
2002 | ||
58782098 | 2003 | extern tree get_containing_scope PARAMS ((tree)); |
140b60b4 | 2004 | |
8da1b058 RS |
2005 | /* Return the FUNCTION_DECL which provides this _DECL with its context, |
2006 | or zero if none. */ | |
58782098 | 2007 | extern tree decl_function_context PARAMS ((tree)); |
8da1b058 | 2008 | |
3635a54b RK |
2009 | /* Return the RECORD_TYPE, UNION_TYPE, or QUAL_UNION_TYPE which provides |
2010 | this _DECL with its context, or zero if none. */ | |
58782098 | 2011 | extern tree decl_type_context PARAMS ((tree)); |
8da1b058 RS |
2012 | |
2013 | /* Given the FUNCTION_DECL for the current function, | |
2014 | return zero if it is ok for this function to be inline. | |
2015 | Otherwise return a warning message with a single %s | |
2016 | for the function's name. */ | |
2017 | ||
58782098 | 2018 | extern const char *function_cannot_inline_p PARAMS ((tree)); |
a3c11cd3 JW |
2019 | |
2020 | /* Return 1 if EXPR is the real constant zero. */ | |
58782098 | 2021 | extern int real_zerop PARAMS ((tree)); |
8da1b058 RS |
2022 | \f |
2023 | /* Declare commonly used variables for tree structure. */ | |
2024 | ||
8da1b058 RS |
2025 | /* Points to the name of the input file from which the current input |
2026 | being parsed originally came (before it went into cpp). */ | |
2027 | extern char *input_filename; | |
2028 | ||
2029 | /* Current line number in input file. */ | |
2030 | extern int lineno; | |
2031 | ||
2032 | /* Nonzero for -pedantic switch: warn about anything | |
2033 | that standard C forbids. */ | |
2034 | extern int pedantic; | |
2035 | ||
4812480a JM |
2036 | /* Nonzero means lvalues are limited to those valid in pedantic ANSI C. |
2037 | Zero means allow extended lvalues. */ | |
2038 | ||
2039 | extern int pedantic_lvalues; | |
2040 | ||
8da1b058 RS |
2041 | /* Nonzero means can safely call expand_expr now; |
2042 | otherwise layout_type puts variable sizes onto `pending_sizes' instead. */ | |
2043 | ||
2044 | extern int immediate_size_expand; | |
2045 | ||
2046 | /* Points to the FUNCTION_DECL of the function whose body we are reading. */ | |
2047 | ||
2048 | extern tree current_function_decl; | |
2049 | ||
8da1b058 RS |
2050 | /* Nonzero means all ..._TYPE nodes should be allocated permanently. */ |
2051 | ||
2052 | extern int all_types_permanent; | |
2053 | ||
a1d7ffe3 JM |
2054 | /* Pointer to function to compute the name to use to print a declaration. |
2055 | DECL is the declaration in question. | |
2056 | VERBOSITY determines what information will be printed: | |
2057 | 0: DECL_NAME, demangled as necessary. | |
2058 | 1: and scope information. | |
2059 | 2: and any other information that might be interesting, such as function | |
2060 | parameter types in C++. */ | |
2061 | ||
58782098 | 2062 | extern const char *(*decl_printable_name) PARAMS ((tree, int)); |
dc437e16 RS |
2063 | |
2064 | /* Pointer to function to finish handling an incomplete decl at the | |
2065 | end of compilation. */ | |
2066 | ||
58782098 | 2067 | extern void (*incomplete_decl_finalize_hook) PARAMS ((tree)); |
f425a887 | 2068 | |
58782098 KG |
2069 | extern char *init_parse PARAMS ((char *)); |
2070 | extern void finish_parse PARAMS ((void)); | |
f425a887 | 2071 | |
26db82d8 BS |
2072 | extern const char * const language_string; |
2073 | ||
2074 | /* Declare a predefined function. Return the declaration. This function is | |
2075 | provided by each language frontend. */ | |
58782098 | 2076 | extern tree builtin_function PARAMS ((const char *, tree, int, |
26db82d8 BS |
2077 | enum built_in_class, |
2078 | const char *)); | |
8da1b058 | 2079 | \f |
143f1945 | 2080 | /* In tree.c */ |
58782098 KG |
2081 | extern char *perm_calloc PARAMS ((int, long)); |
2082 | extern tree get_file_function_name PARAMS ((int)); | |
2083 | extern tree get_file_function_name_long PARAMS ((const char *)); | |
2084 | extern tree get_set_constructor_bits PARAMS ((tree, char *, int)); | |
2085 | extern tree get_set_constructor_bytes PARAMS ((tree, | |
0f41302f | 2086 | unsigned char *, int)); |
58782098 KG |
2087 | extern int get_alias_set PARAMS ((tree)); |
2088 | extern int new_alias_set PARAMS ((void)); | |
2089 | extern int (*lang_get_alias_set) PARAMS ((tree)); | |
2090 | extern tree get_callee_fndecl PARAMS ((tree)); | |
143f1945 | 2091 | \f |
8da1b058 RS |
2092 | /* In stmt.c */ |
2093 | ||
58782098 KG |
2094 | extern int in_control_zone_p PARAMS ((void)); |
2095 | extern void expand_fixups PARAMS ((struct rtx_def *)); | |
2096 | extern tree expand_start_stmt_expr PARAMS ((void)); | |
2097 | extern tree expand_end_stmt_expr PARAMS ((tree)); | |
2098 | extern void expand_expr_stmt PARAMS ((tree)); | |
2099 | extern int warn_if_unused_value PARAMS ((tree)); | |
2100 | extern void expand_decl_init PARAMS ((tree)); | |
2101 | extern void clear_last_expr PARAMS ((void)); | |
2102 | extern void expand_label PARAMS ((tree)); | |
2103 | extern void expand_goto PARAMS ((tree)); | |
2104 | extern void expand_asm PARAMS ((tree)); | |
2105 | extern void expand_start_cond PARAMS ((tree, int)); | |
2106 | extern void expand_end_cond PARAMS ((void)); | |
2107 | extern void expand_start_else PARAMS ((void)); | |
2108 | extern void expand_start_elseif PARAMS ((tree)); | |
2109 | extern struct nesting *expand_start_loop PARAMS ((int)); | |
2110 | extern struct nesting *expand_start_loop_continue_elsewhere PARAMS ((int)); | |
2111 | extern void expand_loop_continue_here PARAMS ((void)); | |
2112 | extern void expand_end_loop PARAMS ((void)); | |
2113 | extern int expand_continue_loop PARAMS ((struct nesting *)); | |
2114 | extern int expand_exit_loop PARAMS ((struct nesting *)); | |
2115 | extern int expand_exit_loop_if_false PARAMS ((struct nesting *, | |
d6b12657 | 2116 | tree)); |
58782098 | 2117 | extern int expand_exit_something PARAMS ((void)); |
f837a861 | 2118 | |
58782098 KG |
2119 | extern void expand_null_return PARAMS ((void)); |
2120 | extern void expand_return PARAMS ((tree)); | |
2121 | extern int optimize_tail_recursion PARAMS ((tree, struct rtx_def *)); | |
2122 | extern void expand_start_bindings_and_block PARAMS ((int, tree)); | |
a97901e6 MM |
2123 | #define expand_start_bindings(flags) \ |
2124 | expand_start_bindings_and_block(flags, NULL_TREE) | |
58782098 KG |
2125 | extern void expand_end_bindings PARAMS ((tree, int, int)); |
2126 | extern void warn_about_unused_variables PARAMS ((tree)); | |
2127 | extern void start_cleanup_deferral PARAMS ((void)); | |
2128 | extern void end_cleanup_deferral PARAMS ((void)); | |
2129 | extern void mark_block_as_eh_region PARAMS ((void)); | |
2130 | extern void mark_block_as_not_eh_region PARAMS ((void)); | |
2131 | extern int is_eh_region PARAMS ((void)); | |
2132 | extern int conditional_context PARAMS ((void)); | |
2133 | extern tree last_cleanup_this_contour PARAMS ((void)); | |
2134 | extern int expand_dhc_cleanup PARAMS ((tree)); | |
2135 | extern int expand_dcc_cleanup PARAMS ((tree)); | |
2136 | extern void expand_start_case PARAMS ((int, tree, tree, | |
dff01034 | 2137 | const char *)); |
58782098 KG |
2138 | extern void expand_end_case PARAMS ((tree)); |
2139 | extern int pushcase PARAMS ((tree, | |
d6b12657 RK |
2140 | tree (*) (tree, tree), |
2141 | tree, tree *)); | |
58782098 | 2142 | extern int pushcase_range PARAMS ((tree, tree, |
d6b12657 RK |
2143 | tree (*) (tree, tree), |
2144 | tree, tree *)); | |
58782098 KG |
2145 | extern void using_eh_for_cleanups PARAMS ((void)); |
2146 | extern int stmt_loop_nest_empty PARAMS ((void)); | |
8da1b058 RS |
2147 | |
2148 | /* In fold-const.c */ | |
2149 | ||
4b63dccb RK |
2150 | /* Fold constants as much as possible in an expression. |
2151 | Returns the simplified expression. | |
2152 | Acts only on the top level of the expression; | |
2153 | if the argument itself cannot be simplified, its | |
2154 | subexpressions are not changed. */ | |
2155 | ||
58782098 | 2156 | extern tree fold PARAMS ((tree)); |
4b63dccb | 2157 | |
58782098 KG |
2158 | extern int force_fit_type PARAMS ((tree, int)); |
2159 | extern int add_double PARAMS ((HOST_WIDE_INT, HOST_WIDE_INT, | |
4b63dccb RK |
2160 | HOST_WIDE_INT, HOST_WIDE_INT, |
2161 | HOST_WIDE_INT *, HOST_WIDE_INT *)); | |
58782098 | 2162 | extern int neg_double PARAMS ((HOST_WIDE_INT, HOST_WIDE_INT, |
4b63dccb | 2163 | HOST_WIDE_INT *, HOST_WIDE_INT *)); |
58782098 | 2164 | extern int mul_double PARAMS ((HOST_WIDE_INT, HOST_WIDE_INT, |
4b63dccb RK |
2165 | HOST_WIDE_INT, HOST_WIDE_INT, |
2166 | HOST_WIDE_INT *, HOST_WIDE_INT *)); | |
58782098 | 2167 | extern void lshift_double PARAMS ((HOST_WIDE_INT, HOST_WIDE_INT, |
4b63dccb RK |
2168 | HOST_WIDE_INT, int, HOST_WIDE_INT *, |
2169 | HOST_WIDE_INT *, int)); | |
58782098 | 2170 | extern void rshift_double PARAMS ((HOST_WIDE_INT, HOST_WIDE_INT, |
4b63dccb RK |
2171 | HOST_WIDE_INT, int, |
2172 | HOST_WIDE_INT *, HOST_WIDE_INT *, int)); | |
58782098 | 2173 | extern void lrotate_double PARAMS ((HOST_WIDE_INT, HOST_WIDE_INT, |
4b63dccb RK |
2174 | HOST_WIDE_INT, int, HOST_WIDE_INT *, |
2175 | HOST_WIDE_INT *)); | |
58782098 | 2176 | extern void rrotate_double PARAMS ((HOST_WIDE_INT, HOST_WIDE_INT, |
4b63dccb RK |
2177 | HOST_WIDE_INT, int, HOST_WIDE_INT *, |
2178 | HOST_WIDE_INT *)); | |
58782098 KG |
2179 | extern int operand_equal_p PARAMS ((tree, tree, int)); |
2180 | extern tree invert_truthvalue PARAMS ((tree)); | |
c530479e RH |
2181 | |
2182 | /* In builtins.c. Given a type, apply default promotions wrt unnamed | |
2183 | function arguments and return the new type. Return NULL_TREE if no | |
2184 | change. Required by any language that supports variadic arguments. */ | |
2185 | ||
58782098 | 2186 | extern tree (*lang_type_promotes_to) PARAMS ((tree)); |
8da1b058 | 2187 | \f |
956d6950 JL |
2188 | /* Interface of the DWARF2 unwind info support. */ |
2189 | ||
2190 | /* Decide whether we want to emit frame unwind information for the current | |
2191 | translation unit. */ | |
2192 | ||
58782098 | 2193 | extern int dwarf2out_do_frame PARAMS ((void)); |
956d6950 JL |
2194 | |
2195 | /* Generate a new label for the CFI info to refer to. */ | |
2196 | ||
58782098 | 2197 | extern char *dwarf2out_cfi_label PARAMS ((void)); |
956d6950 JL |
2198 | |
2199 | /* Entry point to update the canonical frame address (CFA). */ | |
2200 | ||
58782098 | 2201 | extern void dwarf2out_def_cfa PARAMS ((char *, unsigned, long)); |
956d6950 JL |
2202 | |
2203 | /* Add the CFI for saving a register window. */ | |
2204 | ||
58782098 | 2205 | extern void dwarf2out_window_save PARAMS ((char *)); |
956d6950 JL |
2206 | |
2207 | /* Add a CFI to update the running total of the size of arguments pushed | |
2208 | onto the stack. */ | |
2209 | ||
58782098 | 2210 | extern void dwarf2out_args_size PARAMS ((char *, long)); |
956d6950 JL |
2211 | |
2212 | /* Entry point for saving a register to the stack. */ | |
2213 | ||
58782098 | 2214 | extern void dwarf2out_reg_save PARAMS ((char *, unsigned, long)); |
956d6950 JL |
2215 | |
2216 | /* Entry point for saving the return address in the stack. */ | |
2217 | ||
58782098 | 2218 | extern void dwarf2out_return_save PARAMS ((char *, long)); |
956d6950 JL |
2219 | |
2220 | /* Entry point for saving the return address in a register. */ | |
2221 | ||
58782098 | 2222 | extern void dwarf2out_return_reg PARAMS ((char *, unsigned)); |
956d6950 JL |
2223 | |
2224 | /* Output a marker (i.e. a label) for the beginning of a function, before | |
2225 | the prologue. */ | |
2226 | ||
58782098 | 2227 | extern void dwarf2out_begin_prologue PARAMS ((void)); |
956d6950 JL |
2228 | |
2229 | /* Output a marker (i.e. a label) for the absolute end of the generated | |
2230 | code for a function definition. */ | |
2231 | ||
58782098 | 2232 | extern void dwarf2out_end_epilogue PARAMS ((void)); |
956d6950 | 2233 | \f |
8da1b058 RS |
2234 | /* The language front-end must define these functions. */ |
2235 | ||
b53beeb2 | 2236 | /* Function of no arguments for initializing options. */ |
58782098 | 2237 | extern void lang_init_options PARAMS ((void)); |
b53beeb2 | 2238 | |
8da1b058 | 2239 | /* Function of no arguments for initializing lexical scanning. */ |
58782098 | 2240 | extern void init_lex PARAMS ((void)); |
8da1b058 | 2241 | /* Function of no arguments for initializing the symbol table. */ |
58782098 | 2242 | extern void init_decl_processing PARAMS ((void)); |
8da1b058 RS |
2243 | |
2244 | /* Functions called with no arguments at the beginning and end or processing | |
2245 | the input source file. */ | |
58782098 KG |
2246 | extern void lang_init PARAMS ((void)); |
2247 | extern void lang_finish PARAMS ((void)); | |
8da1b058 | 2248 | |
9faa82d8 | 2249 | /* Function to identify which front-end produced the output file. */ |
58782098 | 2250 | extern const char *lang_identify PARAMS ((void)); |
c9591059 KG |
2251 | |
2252 | /* Called by report_error_function to print out function name. | |
2253 | * Default may be overridden by language front-ends. */ | |
58782098 | 2254 | extern void (*print_error_function) PARAMS ((const char *)); |
d0d4af87 | 2255 | |
78b099bd | 2256 | /* Function to replace the DECL_LANG_SPECIFIC field of a DECL with a copy. */ |
58782098 | 2257 | extern void copy_lang_decl PARAMS ((tree)); |
78b099bd | 2258 | |
8da1b058 | 2259 | /* Function called with no arguments to parse and compile the input. */ |
58782098 | 2260 | extern int yyparse PARAMS ((void)); |
8da1b058 RS |
2261 | /* Function called with option as argument |
2262 | to decode options starting with -f or -W or +. | |
2263 | It should return nonzero if it handles the option. */ | |
58782098 | 2264 | extern int lang_decode_option PARAMS ((int, char **)); |
8da1b058 RS |
2265 | |
2266 | /* Functions for processing symbol declarations. */ | |
2267 | /* Function to enter a new lexical scope. | |
2268 | Takes one argument: always zero when called from outside the front end. */ | |
58782098 | 2269 | extern void pushlevel PARAMS ((int)); |
8da1b058 RS |
2270 | /* Function to exit a lexical scope. It returns a BINDING for that scope. |
2271 | Takes three arguments: | |
2272 | KEEP -- nonzero if there were declarations in this scope. | |
2273 | REVERSE -- reverse the order of decls before returning them. | |
2274 | FUNCTIONBODY -- nonzero if this level is the body of a function. */ | |
58782098 | 2275 | extern tree poplevel PARAMS ((int, int, int)); |
69b78d8d | 2276 | /* Set the BLOCK node for the current scope level. */ |
58782098 | 2277 | extern void set_block PARAMS ((tree)); |
8da1b058 RS |
2278 | /* Function to add a decl to the current scope level. |
2279 | Takes one argument, a decl to add. | |
2280 | Returns that decl, or, if the same symbol is already declared, may | |
2281 | return a different decl for that name. */ | |
58782098 | 2282 | extern tree pushdecl PARAMS ((tree)); |
8da1b058 | 2283 | /* Function to return the chain of decls so far in the current scope level. */ |
58782098 | 2284 | extern tree getdecls PARAMS ((void)); |
8da1b058 | 2285 | /* Function to return the chain of structure tags in the current scope level. */ |
58782098 | 2286 | extern tree gettags PARAMS ((void)); |
a3c11cd3 | 2287 | |
58782098 | 2288 | extern tree build_range_type PARAMS ((tree, tree, tree)); |
a3c11cd3 JW |
2289 | |
2290 | /* Call when starting to parse a declaration: | |
2291 | make expressions in the declaration last the length of the function. | |
2292 | Returns an argument that should be passed to resume_momentary later. */ | |
58782098 | 2293 | extern int suspend_momentary PARAMS ((void)); |
a3c11cd3 | 2294 | |
58782098 | 2295 | extern int allocation_temporary_p PARAMS ((void)); |
a3c11cd3 JW |
2296 | |
2297 | /* Call when finished parsing a declaration: | |
2298 | restore the treatment of node-allocation that was | |
2299 | in effect before the suspension. | |
2300 | YES should be the value previously returned by suspend_momentary. */ | |
58782098 | 2301 | extern void resume_momentary PARAMS ((int)); |
a3c11cd3 JW |
2302 | |
2303 | /* Called after finishing a record, union or enumeral type. */ | |
58782098 | 2304 | extern void rest_of_type_compilation PARAMS ((tree, int)); |
a3c11cd3 JW |
2305 | |
2306 | /* Save the current set of obstacks, but don't change them. */ | |
58782098 | 2307 | extern void push_obstacks_nochange PARAMS ((void)); |
a3c11cd3 | 2308 | |
58782098 | 2309 | extern void permanent_allocation PARAMS ((int)); |
96bcb120 | 2310 | |
58782098 | 2311 | extern void push_momentary PARAMS ((void)); |
a3c11cd3 | 2312 | |
58782098 | 2313 | extern void clear_momentary PARAMS ((void)); |
a3c11cd3 | 2314 | |
58782098 | 2315 | extern void pop_momentary PARAMS ((void)); |
a3c11cd3 | 2316 | |
58782098 | 2317 | extern void end_temporary_allocation PARAMS ((void)); |
a3c11cd3 JW |
2318 | |
2319 | /* Pop the obstack selection stack. */ | |
58782098 | 2320 | extern void pop_obstacks PARAMS ((void)); |
92cbe4d2 | 2321 | |
a1d061a1 | 2322 | /* In tree.c */ |
58782098 KG |
2323 | extern int really_constant_p PARAMS ((tree)); |
2324 | extern void push_obstacks PARAMS ((struct obstack *, | |
a1d061a1 | 2325 | struct obstack *)); |
58782098 KG |
2326 | extern void pop_momentary_nofree PARAMS ((void)); |
2327 | extern void preserve_momentary PARAMS ((void)); | |
2328 | extern void saveable_allocation PARAMS ((void)); | |
2329 | extern void temporary_allocation PARAMS ((void)); | |
2330 | extern void resume_temporary_allocation PARAMS ((void)); | |
2331 | extern tree get_file_function_name PARAMS ((int)); | |
2332 | extern void set_identifier_size PARAMS ((int)); | |
2333 | extern int int_fits_type_p PARAMS ((tree, tree)); | |
2334 | extern int tree_log2 PARAMS ((tree)); | |
2335 | extern void preserve_initializer PARAMS ((void)); | |
2336 | extern void preserve_data PARAMS ((void)); | |
2337 | extern int object_permanent_p PARAMS ((tree)); | |
2338 | extern int type_precision PARAMS ((tree)); | |
2339 | extern int simple_cst_equal PARAMS ((tree, tree)); | |
2340 | extern int type_list_equal PARAMS ((tree, tree)); | |
2341 | extern int chain_member PARAMS ((tree, tree)); | |
2342 | extern int chain_member_purpose PARAMS ((tree, tree)); | |
2343 | extern int chain_member_value PARAMS ((tree, tree)); | |
2344 | extern tree listify PARAMS ((tree)); | |
2345 | extern tree type_hash_lookup PARAMS ((int, tree)); | |
2346 | extern void type_hash_add PARAMS ((int, tree)); | |
2347 | extern int type_hash_list PARAMS ((tree)); | |
2348 | extern int simple_cst_list_equal PARAMS ((tree, tree)); | |
2349 | extern void debug_obstack PARAMS ((char *)); | |
2350 | extern void rtl_in_current_obstack PARAMS ((void)); | |
2351 | extern void rtl_in_saveable_obstack PARAMS ((void)); | |
2352 | extern void init_tree_codes PARAMS ((void)); | |
2353 | extern void dump_tree_statistics PARAMS ((void)); | |
2354 | extern void print_obstack_statistics PARAMS ((const char *, | |
37b37199 | 2355 | struct obstack *)); |
a1d061a1 | 2356 | #ifdef BUFSIZ |
58782098 | 2357 | extern void print_obstack_name PARAMS ((char *, FILE *, const char *)); |
a1d061a1 | 2358 | #endif |
58782098 KG |
2359 | extern void expand_function_end PARAMS ((char *, int, int)); |
2360 | extern void expand_function_start PARAMS ((tree, int)); | |
2361 | extern int real_onep PARAMS ((tree)); | |
2362 | extern int real_twop PARAMS ((tree)); | |
2363 | extern void start_identifier_warnings PARAMS ((void)); | |
2364 | extern void gcc_obstack_init PARAMS ((struct obstack *)); | |
2365 | extern void init_obstacks PARAMS ((void)); | |
2366 | extern void obfree PARAMS ((char *)); | |
2367 | extern void build_common_tree_nodes PARAMS ((int)); | |
2368 | extern void build_common_tree_nodes_2 PARAMS ((int)); | |
a1d061a1 JL |
2369 | |
2370 | /* In function.c */ | |
58782098 KG |
2371 | extern void setjmp_protect_args PARAMS ((void)); |
2372 | extern void setjmp_protect PARAMS ((tree)); | |
2373 | extern void expand_main_function PARAMS ((void)); | |
2374 | extern void mark_varargs PARAMS ((void)); | |
2375 | extern void init_dummy_function_start PARAMS ((void)); | |
2376 | extern void expand_dummy_function_end PARAMS ((void)); | |
2377 | extern void init_function_for_compilation PARAMS ((void)); | |
2378 | extern void init_function_start PARAMS ((tree, char *, int)); | |
2379 | extern void assign_parms PARAMS ((tree)); | |
2380 | extern void put_var_into_stack PARAMS ((tree)); | |
2381 | extern void uninitialized_vars_warning PARAMS ((tree)); | |
2382 | extern void setjmp_args_warning PARAMS ((void)); | |
2383 | extern void mark_all_temps_used PARAMS ((void)); | |
2384 | extern void init_temp_slots PARAMS ((void)); | |
2385 | extern void combine_temp_slots PARAMS ((void)); | |
2386 | extern void free_temp_slots PARAMS ((void)); | |
2387 | extern void pop_temp_slots PARAMS ((void)); | |
2388 | extern void push_temp_slots PARAMS ((void)); | |
2389 | extern void preserve_temp_slots PARAMS ((struct rtx_def *)); | |
2390 | extern int aggregate_value_p PARAMS ((tree)); | |
2391 | extern tree reorder_blocks PARAMS ((tree, | |
a1d061a1 | 2392 | struct rtx_def *)); |
58782098 KG |
2393 | extern void free_temps_for_rtl_expr PARAMS ((tree)); |
2394 | extern void instantiate_virtual_regs PARAMS ((tree, struct rtx_def *)); | |
d1b81779 | 2395 | extern void unshare_all_rtl PARAMS ((tree, struct rtx_def *)); |
58782098 KG |
2396 | extern int max_parm_reg_num PARAMS ((void)); |
2397 | extern void push_function_context PARAMS ((void)); | |
2398 | extern void pop_function_context PARAMS ((void)); | |
2399 | extern void push_function_context_to PARAMS ((tree)); | |
2400 | extern void pop_function_context_from PARAMS ((tree)); | |
a1d061a1 JL |
2401 | |
2402 | /* In print-rtl.c */ | |
2403 | #ifdef BUFSIZ | |
58782098 | 2404 | extern void print_rtl PARAMS ((FILE *, struct rtx_def *)); |
a1d061a1 JL |
2405 | #endif |
2406 | ||
2407 | /* In print-tree.c */ | |
58782098 | 2408 | extern void debug_tree PARAMS ((tree)); |
a1d061a1 | 2409 | #ifdef BUFSIZ |
58782098 KG |
2410 | extern void print_node PARAMS ((FILE *, const char *, tree, int)); |
2411 | extern void print_node_brief PARAMS ((FILE *, const char *, tree, int)); | |
2412 | extern void indent_to PARAMS ((FILE *, int)); | |
a1d061a1 JL |
2413 | #endif |
2414 | ||
2415 | /* In expr.c */ | |
58782098 KG |
2416 | extern void emit_queue PARAMS ((void)); |
2417 | extern int apply_args_register_offset PARAMS ((int)); | |
a1d061a1 | 2418 | extern struct rtx_def *expand_builtin_return_addr |
58782098 KG |
2419 | PARAMS ((enum built_in_function, int, struct rtx_def *)); |
2420 | extern void do_pending_stack_adjust PARAMS ((void)); | |
2421 | extern struct rtx_def *expand_assignment PARAMS ((tree, tree, int, int)); | |
2422 | extern struct rtx_def *store_expr PARAMS ((tree, struct rtx_def *, | |
a1d061a1 | 2423 | int)); |
58782098 | 2424 | extern void check_max_integer_computation_mode PARAMS ((tree)); |
a1d061a1 JL |
2425 | |
2426 | /* In emit-rtl.c */ | |
58782098 KG |
2427 | extern void start_sequence_for_rtl_expr PARAMS ((tree)); |
2428 | extern struct rtx_def *emit_line_note_after PARAMS ((char *, int, | |
a1d061a1 | 2429 | struct rtx_def *)); |
58782098 KG |
2430 | extern struct rtx_def *emit_line_note PARAMS ((char *, int)); |
2431 | extern struct rtx_def *emit_line_note_force PARAMS ((char *, int)); | |
a1d061a1 | 2432 | |
3a8c995b | 2433 | /* In calls.c */ |
58782098 | 2434 | extern void special_function_p PARAMS ((tree, int *, int *, |
e09d24ff | 2435 | int *, int *, int *)); |
3a8c995b | 2436 | |
a1d061a1 | 2437 | /* In c-typeck.c */ |
58782098 KG |
2438 | extern int mark_addressable PARAMS ((tree)); |
2439 | extern void incomplete_type_error PARAMS ((tree, tree)); | |
a1d061a1 JL |
2440 | |
2441 | /* In c-lang.c */ | |
58782098 | 2442 | extern void print_lang_statistics PARAMS ((void)); |
a1d061a1 JL |
2443 | |
2444 | /* In c-common.c */ | |
58782098 KG |
2445 | extern tree truthvalue_conversion PARAMS ((tree)); |
2446 | extern int min_precision PARAMS ((tree, int)); | |
2447 | extern void split_specs_attrs PARAMS ((tree, tree *, tree *)); | |
a1d061a1 JL |
2448 | |
2449 | /* In c-decl.c */ | |
2450 | #ifdef BUFSIZ | |
58782098 KG |
2451 | extern void print_lang_decl PARAMS ((FILE *, tree, int)); |
2452 | extern void print_lang_type PARAMS ((FILE *, tree, int)); | |
2453 | extern void print_lang_identifier PARAMS ((FILE *, tree, int)); | |
a1d061a1 | 2454 | #endif |
58782098 KG |
2455 | extern int global_bindings_p PARAMS ((void)); |
2456 | extern void insert_block PARAMS ((tree)); | |
a1d061a1 JL |
2457 | |
2458 | /* In integrate.c */ | |
58782098 KG |
2459 | extern void save_for_inline_nocopy PARAMS ((tree)); |
2460 | extern void save_for_inline_copying PARAMS ((tree)); | |
2461 | extern void set_decl_abstract_flags PARAMS ((tree, int)); | |
2462 | extern void output_inline_function PARAMS ((tree)); | |
a1d061a1 JL |
2463 | |
2464 | /* In c-lex.c */ | |
58782098 | 2465 | extern void set_yydebug PARAMS ((int)); |
a1d061a1 JL |
2466 | |
2467 | /* In stor-layout.c */ | |
58782098 | 2468 | extern void fixup_signed_type PARAMS ((tree)); |
a1d061a1 JL |
2469 | |
2470 | /* varasm.c */ | |
58782098 KG |
2471 | extern void make_decl_rtl PARAMS ((tree, const char *, int)); |
2472 | extern void make_decl_one_only PARAMS ((tree)); | |
2473 | extern int supports_one_only PARAMS ((void)); | |
2474 | extern void variable_section PARAMS ((tree, int)); | |
a1d061a1 JL |
2475 | |
2476 | /* In fold-const.c */ | |
58782098 | 2477 | extern int div_and_round_double PARAMS ((enum tree_code, int, |
a1d061a1 JL |
2478 | HOST_WIDE_INT, HOST_WIDE_INT, |
2479 | HOST_WIDE_INT, HOST_WIDE_INT, | |
2480 | HOST_WIDE_INT *, | |
2481 | HOST_WIDE_INT *, | |
2482 | HOST_WIDE_INT *, | |
2483 | HOST_WIDE_INT *)); | |
2484 | ||
2485 | /* In stmt.c */ | |
58782098 KG |
2486 | extern void emit_nop PARAMS ((void)); |
2487 | extern void expand_computed_goto PARAMS ((tree)); | |
2488 | extern struct rtx_def *label_rtx PARAMS ((tree)); | |
2489 | extern void expand_asm_operands PARAMS ((tree, tree, tree, tree, int, | |
a1d061a1 | 2490 | char *, int)); |
58782098 KG |
2491 | extern int any_pending_cleanups PARAMS ((int)); |
2492 | extern void init_stmt PARAMS ((void)); | |
2493 | extern void init_stmt_for_function PARAMS ((void)); | |
2494 | extern int drop_through_at_end_p PARAMS ((void)); | |
2495 | extern void expand_start_target_temps PARAMS ((void)); | |
2496 | extern void expand_end_target_temps PARAMS ((void)); | |
2497 | extern void expand_elseif PARAMS ((tree)); | |
2498 | extern void expand_decl PARAMS ((tree)); | |
2499 | extern int expand_decl_cleanup PARAMS ((tree, tree)); | |
2500 | extern void expand_anon_union_decl PARAMS ((tree, tree, tree)); | |
2501 | extern void move_cleanups_up PARAMS ((void)); | |
2502 | extern void expand_start_case_dummy PARAMS ((void)); | |
2503 | extern void expand_end_case_dummy PARAMS ((void)); | |
2504 | extern tree case_index_expr_type PARAMS ((void)); | |
2505 | extern HOST_WIDE_INT all_cases_count PARAMS ((tree, int *)); | |
2506 | extern void check_for_full_enumeration_handling PARAMS ((tree)); | |
2507 | extern void declare_nonlocal_label PARAMS ((tree)); | |
31ed227b | 2508 | #ifdef BUFSIZ |
58782098 | 2509 | extern void lang_print_xnode PARAMS ((FILE *, tree, int)); |
31ed227b JL |
2510 | #endif |
2511 | ||
a1d061a1 | 2512 | |
496651db MM |
2513 | /* If KIND=='I', return a suitable global initializer (constructor) name. |
2514 | If KIND=='D', return a suitable global clean-up (destructor) name. */ | |
58782098 | 2515 | extern tree get_file_function_name PARAMS ((int)); |
af4142d5 JM |
2516 | \f |
2517 | /* Interface of the DWARF2 unwind info support. */ | |
2518 | ||
2519 | /* Decide whether we want to emit frame unwind information for the current | |
2520 | translation unit. */ | |
2521 | ||
58782098 | 2522 | extern int dwarf2out_do_frame PARAMS ((void)); |
af4142d5 JM |
2523 | |
2524 | /* Generate a new label for the CFI info to refer to. */ | |
2525 | ||
58782098 | 2526 | extern char *dwarf2out_cfi_label PARAMS ((void)); |
af4142d5 JM |
2527 | |
2528 | /* Entry point to update the canonical frame address (CFA). */ | |
2529 | ||
58782098 | 2530 | extern void dwarf2out_def_cfa PARAMS ((char *, unsigned, long)); |
af4142d5 JM |
2531 | |
2532 | /* Add the CFI for saving a register window. */ | |
2533 | ||
58782098 | 2534 | extern void dwarf2out_window_save PARAMS ((char *)); |
af4142d5 JM |
2535 | |
2536 | /* Add a CFI to update the running total of the size of arguments pushed | |
2537 | onto the stack. */ | |
2538 | ||
58782098 | 2539 | extern void dwarf2out_args_size PARAMS ((char *, long)); |
af4142d5 JM |
2540 | |
2541 | /* Entry point for saving a register to the stack. */ | |
2542 | ||
58782098 | 2543 | extern void dwarf2out_reg_save PARAMS ((char *, unsigned, long)); |
af4142d5 JM |
2544 | |
2545 | /* Entry point for saving the return address in the stack. */ | |
2546 | ||
58782098 | 2547 | extern void dwarf2out_return_save PARAMS ((char *, long)); |
af4142d5 JM |
2548 | |
2549 | /* Entry point for saving the return address in a register. */ | |
2550 | ||
58782098 | 2551 | extern void dwarf2out_return_reg PARAMS ((char *, unsigned)); |
af4142d5 JM |
2552 | |
2553 | /* Output a marker (i.e. a label) for the beginning of a function, before | |
2554 | the prologue. */ | |
2555 | ||
58782098 | 2556 | extern void dwarf2out_begin_prologue PARAMS ((void)); |
af4142d5 JM |
2557 | |
2558 | /* Output a marker (i.e. a label) for the absolute end of the generated | |
2559 | code for a function definition. */ | |
2560 | ||
58782098 | 2561 | extern void dwarf2out_end_epilogue PARAMS ((void)); |
987009bf ZW |
2562 | |
2563 | /* Redefine abort to report an internal error w/o coredump, and | |
2564 | reporting the location of the error in the source file. This logic | |
2565 | is duplicated in rtl.h and tree.h because every file that needs the | |
2566 | special abort includes one or both. toplev.h gets too few files, | |
2567 | system.h gets too many. */ | |
2568 | ||
58782098 | 2569 | extern void fancy_abort PARAMS ((const char *, int, const char *)) |
987009bf | 2570 | ATTRIBUTE_NORETURN; |
6c9821b7 | 2571 | #if (GCC_VERSION >= 2007) |
987009bf | 2572 | #define abort() fancy_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__) |
6c9821b7 PDM |
2573 | #else |
2574 | #define abort() fancy_abort (__FILE__, __LINE__, 0) | |
987009bf | 2575 | #endif |