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* c-common.c (lang_gimplify_stmt): Remove next_p argument.
[thirdparty/gcc.git] / gcc / c-tree.h
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907a24a1 1/* Definitions for C parsing and type checking.
ca628a86 2 Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998,
0364c2b4 3 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
907a24a1 4
f12b58b3 5This file is part of GCC.
907a24a1 6
f12b58b3 7GCC is free software; you can redistribute it and/or modify it under
8the terms of the GNU General Public License as published by the Free
9Software Foundation; either version 2, or (at your option) any later
10version.
907a24a1 11
f12b58b3 12GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13WARRANTY; without even the implied warranty of MERCHANTABILITY or
14FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15for more details.
907a24a1 16
17You should have received a copy of the GNU General Public License
f12b58b3 18along with GCC; see the file COPYING. If not, write to the Free
19Software Foundation, 59 Temple Place - Suite 330, Boston, MA
2002111-1307, USA. */
907a24a1 21
2a281353 22#ifndef GCC_C_TREE_H
23#define GCC_C_TREE_H
7ba2cd99 24
72040e7e 25#include "c-common.h"
26
56533c31 27/* struct lang_identifier is private to c-decl.c, but langhooks.c needs to
28 know how big it is. This is sanity-checked in c-decl.c. */
29#define C_SIZEOF_STRUCT_LANG_IDENTIFIER \
30 (sizeof (struct c_common_identifier) + 3 * sizeof (void *))
907a24a1 31
4ee9c684 32/* For gc purposes, return the most likely link for the longest chain. */
33#define C_LANG_TREE_NODE_CHAIN_NEXT(T) \
34 ((union lang_tree_node *) \
35 (TREE_CODE (T) == INTEGER_TYPE ? TYPE_NEXT_VARIANT (T) \
36 : TREE_CODE (T) == COMPOUND_EXPR ? TREE_OPERAND (T, 1) \
37 : TREE_CHAIN (T)))
38
ce467a73 39/* Language-specific declaration information. */
e41f0d80 40
1f3233d1 41struct lang_decl GTY(())
e41f0d80 42{
ce467a73 43 /* The return types and parameter types may have variable size.
44 This is a list of any SAVE_EXPRs that need to be evaluated to
45 compute those sizes. */
46 tree pending_sizes;
e41f0d80 47};
48
907a24a1 49/* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */
163d43d8 50#define C_TYPE_FIELDS_READONLY(TYPE) TREE_LANG_FLAG_1 (TYPE)
907a24a1 51
52/* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is volatile. */
163d43d8 53#define C_TYPE_FIELDS_VOLATILE(TYPE) TREE_LANG_FLAG_2 (TYPE)
907a24a1 54
55/* In a RECORD_TYPE or UNION_TYPE or ENUMERAL_TYPE
56 nonzero if the definition of the type has already started. */
163d43d8 57#define C_TYPE_BEING_DEFINED(TYPE) TYPE_LANG_FLAG_0 (TYPE)
3e0a85c2 58
59/* In an incomplete RECORD_TYPE or UNION_TYPE, a list of variable
60 declarations whose type would be completed by completing that type. */
61#define C_TYPE_INCOMPLETE_VARS(TYPE) TYPE_VFIELD (TYPE)
907a24a1 62
518796ad 63/* In an IDENTIFIER_NODE, nonzero if this identifier is actually a
64 keyword. C_RID_CODE (node) is then the RID_* value of the keyword,
65 and C_RID_YYCODE is the token number wanted by Yacc. */
163d43d8 66#define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_0 (ID)
518796ad 67
1f3233d1 68struct lang_type GTY(())
907a24a1 69{
4ee9c684 70 /* In a RECORD_TYPE, a sorted array of the fields of the type. */
d9cf68bf 71 struct sorted_fields_type * GTY ((reorder ("resort_sorted_fields"))) s;
4ee9c684 72 /* In an ENUMERAL_TYPE, the min and max values. */
73 tree enum_min;
74 tree enum_max;
907a24a1 75};
76
907a24a1 77/* Record whether a type or decl was written with nonconstant size.
78 Note that TYPE_SIZE may have simplified to a constant. */
163d43d8 79#define C_TYPE_VARIABLE_SIZE(TYPE) TYPE_LANG_FLAG_1 (TYPE)
80#define C_DECL_VARIABLE_SIZE(TYPE) DECL_LANG_FLAG_0 (TYPE)
907a24a1 81
907a24a1 82/* Store a value in that field. */
163d43d8 83#define C_SET_EXP_ORIGINAL_CODE(EXP, CODE) \
84 (TREE_COMPLEXITY (EXP) = (int) (CODE))
907a24a1 85
86/* Record whether a typedef for type `int' was actually `signed int'. */
163d43d8 87#define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP)
907a24a1 88
af857942 89/* For a FUNCTION_DECL, nonzero if it was defined without an explicit
90 return type. */
91#define C_FUNCTION_IMPLICIT_INT(EXP) DECL_LANG_FLAG_1 (EXP)
92
31ddae9f 93/* For a FUNCTION_DECL, nonzero if it was an implicit declaration. */
94#define C_DECL_IMPLICIT(EXP) DECL_LANG_FLAG_2 (EXP)
95
393b349a 96/* For any decl, nonzero if it is bound in the externals scope and
97 pop_scope mustn't chain it into any higher block. */
98#define C_DECL_IN_EXTERNAL_SCOPE(EXP) DECL_LANG_FLAG_3 (EXP)
99
100/* For FUNCTION_DECLs, evaluates true if the decl is built-in but has
101 been declared. */
102#define C_DECL_DECLARED_BUILTIN(EXP) DECL_LANG_FLAG_4 (EXP)
31ddae9f 103
7746224a 104/* Record whether a decl was declared register. This is strictly a
105 front-end flag, whereas DECL_REGISTER is used for code generation;
106 they may differ for structures with volatile fields. */
107#define C_DECL_REGISTER(EXP) DECL_LANG_FLAG_5 (EXP)
108
31ddae9f 109/* Nonzero for a decl which either doesn't exist or isn't a prototype.
110 N.B. Could be simplified if all built-in decls had complete prototypes
111 (but this is presently difficult because some of them need FILE*). */
112#define C_DECL_ISNT_PROTOTYPE(EXP) \
113 (EXP == 0 \
114 || (TYPE_ARG_TYPES (TREE_TYPE (EXP)) == 0 \
115 && !DECL_BUILT_IN (EXP)))
20f91811 116
907a24a1 117/* For FUNCTION_TYPE, a hidden list of types of arguments. The same as
118 TYPE_ARG_TYPES for functions with prototypes, but created for functions
119 without prototypes. */
8cbe13ee 120#define TYPE_ACTUAL_ARG_TYPES(NODE) TYPE_BINFO (NODE)
ad9afbbd 121
d9cf68bf 122/* Save and restore the variables in this file and elsewhere
123 that keep track of the progress of compilation of the current function.
124 Used for nested functions. */
125
126struct language_function GTY(())
127{
128 struct c_language_function base;
129 int returns_value;
130 int returns_null;
131 int returns_abnormally;
132 int warn_about_return_type;
133 int extern_inline;
134 int x_in_iteration_stmt;
135 int x_in_case_stmt;
136};
137
96526206 138\f
dc12af01 139/* in c-parse.in */
2b30d46c 140extern void c_parse_init (void);
dc12af01 141
96526206 142/* in c-aux-info.c */
2b30d46c 143extern void gen_aux_info_record (tree, int, int, int);
907a24a1 144
96526206 145/* in c-decl.c */
2bbf1d92 146extern int c_in_iteration_stmt;
147extern int c_in_case_stmt;
148
2b30d46c 149extern int global_bindings_p (void);
2b30d46c 150extern tree getdecls (void);
393b349a 151extern void push_scope (void);
152extern tree pop_scope (void);
2b30d46c 153extern void insert_block (tree);
2b30d46c 154extern tree pushdecl (tree);
c17b85ea 155extern void c_expand_body (tree);
2b30d46c 156
2b30d46c 157extern void c_init_decl_processing (void);
158extern void c_dup_lang_specific_decl (tree);
159extern void c_print_identifier (FILE *, tree, int);
160extern tree build_array_declarator (tree, tree, int, int);
161extern tree build_enumerator (tree, tree);
162extern void check_for_loop_decls (void);
f74be9a1 163extern void mark_forward_parm_decls (void);
2b30d46c 164extern int complete_array_type (tree, tree, int);
2b652cf3 165extern void declare_parm_level (void);
a0c21e2b 166extern void undeclared_variable (tree);
bdc33d98 167extern tree declare_label (tree);
92ddaf90 168extern tree define_label (location_t, tree);
2b30d46c 169extern void finish_decl (tree, tree, tree);
170extern tree finish_enum (tree, tree, tree);
2ff66ee0 171extern void finish_function (void);
2b30d46c 172extern tree finish_struct (tree, tree, tree);
393b349a 173extern tree get_parm_info (bool);
4862d777 174extern tree grokfield (tree, tree, tree);
2b30d46c 175extern tree groktypename (tree);
176extern tree groktypename_in_parm_context (tree);
177extern tree implicitly_declare (tree);
2b30d46c 178extern void keep_next_level (void);
179extern tree lookup_name (tree);
2b30d46c 180extern void pending_xref_error (void);
181extern void c_push_function_context (struct function *);
182extern void c_pop_function_context (struct function *);
2b30d46c 183extern void push_parm_decl (tree);
184extern tree pushdecl_top_level (tree);
2b30d46c 185extern tree set_array_declarator_type (tree, tree, int);
2b30d46c 186extern void shadow_tag (tree);
187extern void shadow_tag_warned (tree, int);
188extern tree start_enum (tree);
189extern int start_function (tree, tree, tree);
190extern tree start_decl (tree, tree, int, tree);
191extern tree start_struct (enum tree_code, tree);
192extern void store_parm_decls (void);
193extern tree xref_tag (enum tree_code, tree);
2363ef00 194extern int c_expand_decl (tree);
43085570 195extern void c_static_assembler_name (tree);
2b30d46c 196extern tree make_pointer_declarator (tree, tree);
aaa4d7e7 197
198/* in c-objc-common.c */
2b30d46c 199extern int c_disregard_inline_limits (tree);
200extern int c_cannot_inline_tree_fn (tree *);
201extern bool c_objc_common_init (void);
4ee9c684 202extern bool c_missing_noreturn_ok_p (tree);
d1b92730 203extern tree c_objc_common_truthvalue_conversion (tree expr);
2b30d46c 204extern void c_objc_common_finish_file (void);
205extern int defer_fn (tree);
206extern bool c_warn_unused_global_decl (tree);
aaa4d7e7 207
208#define c_build_type_variant(TYPE, CONST_P, VOLATILE_P) \
209 c_build_qualified_type ((TYPE), \
210 ((CONST_P) ? TYPE_QUAL_CONST : 0) | \
211 ((VOLATILE_P) ? TYPE_QUAL_VOLATILE : 0))
212
d3a4d008 213#define c_sizeof_nowarn(T) c_sizeof_or_alignof_type (T, SIZEOF_EXPR, 0)
40109983 214
96526206 215/* in c-typeck.c */
40109983 216
2b30d46c 217extern tree require_complete_type (tree);
393b349a 218extern int same_translation_unit_p (tree, tree);
3ed275a6 219extern int comptypes (tree, tree);
2b30d46c 220extern tree c_size_in_bytes (tree);
221extern bool c_mark_addressable (tree);
222extern void c_incomplete_type_error (tree, tree);
223extern tree c_type_promotes_to (tree);
1ea7fa60 224extern tree composite_type (tree, tree);
2b30d46c 225extern tree build_component_ref (tree, tree);
226extern tree build_indirect_ref (tree, const char *);
227extern tree build_array_ref (tree, tree);
228extern tree build_external_ref (tree, int);
229extern tree parser_build_binary_op (enum tree_code, tree, tree);
230extern int c_tree_expr_nonnegative_p (tree);
9d5baf96 231extern void readonly_error (tree, const char *);
2b30d46c 232extern tree build_conditional_expr (tree, tree, tree);
233extern tree build_compound_expr (tree);
234extern tree c_cast_expr (tree, tree);
235extern tree build_c_cast (tree, tree);
236extern tree build_modify_expr (tree, enum tree_code, tree);
237extern void store_init_value (tree, tree);
238extern void error_init (const char *);
239extern void pedwarn_init (const char *);
240extern void start_init (tree, tree, int);
241extern void finish_init (void);
242extern void really_start_incremental_init (tree);
243extern void push_init_level (int);
244extern tree pop_init_level (int);
245extern void set_init_index (tree, tree);
246extern void set_init_label (tree);
247extern void process_init_element (tree);
248extern tree build_compound_literal (tree, tree);
aa267cf6 249extern void pedwarn_c90 (const char *, ...) ATTRIBUTE_PRINTF_1;
2b30d46c 250extern void pedwarn_c99 (const char *, ...) ATTRIBUTE_PRINTF_1;
251extern tree c_start_case (tree);
2363ef00 252extern void c_finish_case (tree);
fae5a040 253extern tree build_asm_expr (tree, tree, tree, tree, bool);
254extern tree build_asm_stmt (tree, tree);
f0c467da 255extern tree c_convert_parm_for_inlining (tree, tree, tree, int);
4ee9c684 256extern int c_types_compatible_p (tree, tree);
2363ef00 257extern tree c_begin_compound_stmt (bool);
258extern tree c_end_compound_stmt (tree, bool);
259extern void c_expand_start_cond (tree, int, tree);
260extern void c_finish_then (tree);
261extern void c_expand_start_else (void);
262extern void c_finish_else (tree);
263extern void c_expand_end_cond (void);
264extern tree c_begin_if_stmt (void);
265extern tree c_begin_while_stmt (void);
266extern void c_finish_while_stmt_cond (tree, tree);
267extern void c_finish_while_stmt (tree, tree);
268extern tree c_begin_for_stmt (void);
269extern void c_finish_for_stmt_init (tree);
270extern void c_finish_for_stmt_cond (tree, tree);
271extern void c_finish_for_stmt_incr (tree, tree);
272extern void c_finish_for_stmt (tree, tree);
273extern tree c_begin_stmt_expr (void);
274extern tree c_finish_stmt_expr (tree);
43bf5d72 275extern tree build_offsetof (tree, tree);
907a24a1 276
277/* Set to 0 at beginning of a function definition, set to 1 if
278 a return statement that specifies a return value is seen. */
279
280extern int current_function_returns_value;
281
282/* Set to 0 at beginning of a function definition, set to 1 if
283 a return statement with no argument is seen. */
284
285extern int current_function_returns_null;
286
af857942 287/* Set to 0 at beginning of a function definition, set to 1 if
288 a call to a noreturn function is seen. */
289
290extern int current_function_returns_abnormally;
291
907a24a1 292/* Nonzero means we are reading code that came from a system header file. */
293
294extern int system_header_p;
96526206 295
393b349a 296/* True means global_bindings_p should return false even if the scope stack
297 says we are in file scope. */
298
299extern bool c_override_global_bindings_to_false;
300
eea57b92 301/* In c-decl.c */
2b30d46c 302extern void c_finish_incomplete_decl (tree);
c17b85ea 303extern void *get_current_scope (void);
304extern void objc_mark_locals_volatile (void *);
40109983 305extern void c_write_global_declarations (void);
eea57b92 306
1f3233d1 307extern GTY(()) tree static_ctors;
308extern GTY(()) tree static_dtors;
4cfbaf39 309
69579044 310/* In order for the format checking to accept the C frontend
311 diagnostic framework extensions, you must include this file before
312 toplev.h, not after. */
313#define GCC_DIAG_STYLE __gcc_cdiag__
314
2a281353 315#endif /* ! GCC_C_TREE_H */
Mirror of https://gcc.gnu.org/git/gcc.git