2004-08-14 Casey Marshall <csm@gnu.org>
[official-gcc.git] / gcc / c-lang.c
blob72d21010c29292ee35430b40e0e9ba97dda9831d
1 /* Language-specific hook definitions for C front end.
2 Copyright (C) 1991, 1995, 1997, 1998,
3 1999, 2000, 2001, 2003, 2004 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
10 version.
12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 for more details.
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
20 02111-1307, USA. */
23 #include "config.h"
24 #include "system.h"
25 #include "coretypes.h"
26 #include "tm.h"
27 #include "tree.h"
28 #include "c-tree.h"
29 #include "c-common.h"
30 #include "ggc.h"
31 #include "langhooks.h"
32 #include "langhooks-def.h"
33 #include "tree-inline.h"
34 #include "diagnostic.h"
35 #include "c-pretty-print.h"
37 enum c_language_kind c_language = clk_c;
39 /* ### When changing hooks, consider if ObjC needs changing too!! ### */
41 #undef LANG_HOOKS_NAME
42 #define LANG_HOOKS_NAME "GNU C"
43 #undef LANG_HOOKS_IDENTIFIER_SIZE
44 #define LANG_HOOKS_IDENTIFIER_SIZE C_SIZEOF_STRUCT_LANG_IDENTIFIER
45 #undef LANG_HOOKS_INIT
46 #define LANG_HOOKS_INIT c_objc_common_init
47 #undef LANG_HOOKS_FINISH
48 #define LANG_HOOKS_FINISH c_common_finish
49 #undef LANG_HOOKS_INIT_OPTIONS
50 #define LANG_HOOKS_INIT_OPTIONS c_common_init_options
51 #undef LANG_HOOKS_INITIALIZE_DIAGNOSTICS
52 #define LANG_HOOKS_INITIALIZE_DIAGNOSTICS c_initialize_diagnostics
53 #undef LANG_HOOKS_HANDLE_OPTION
54 #define LANG_HOOKS_HANDLE_OPTION c_common_handle_option
55 #undef LANG_HOOKS_MISSING_ARGUMENT
56 #define LANG_HOOKS_MISSING_ARGUMENT c_common_missing_argument
57 #undef LANG_HOOKS_POST_OPTIONS
58 #define LANG_HOOKS_POST_OPTIONS c_common_post_options
59 #undef LANG_HOOKS_GET_ALIAS_SET
60 #define LANG_HOOKS_GET_ALIAS_SET c_common_get_alias_set
61 #undef LANG_HOOKS_EXPAND_EXPR
62 #define LANG_HOOKS_EXPAND_EXPR c_expand_expr
63 #undef LANG_HOOKS_EXPAND_DECL
64 #define LANG_HOOKS_EXPAND_DECL c_expand_decl
65 #undef LANG_HOOKS_MARK_ADDRESSABLE
66 #define LANG_HOOKS_MARK_ADDRESSABLE c_mark_addressable
67 #undef LANG_HOOKS_PARSE_FILE
68 #define LANG_HOOKS_PARSE_FILE c_common_parse_file
69 #undef LANG_HOOKS_TRUTHVALUE_CONVERSION
70 #define LANG_HOOKS_TRUTHVALUE_CONVERSION c_objc_common_truthvalue_conversion
71 #undef LANG_HOOKS_FINISH_INCOMPLETE_DECL
72 #define LANG_HOOKS_FINISH_INCOMPLETE_DECL c_finish_incomplete_decl
73 #undef LANG_HOOKS_REDUCE_BIT_FIELD_OPERATIONS
74 #define LANG_HOOKS_REDUCE_BIT_FIELD_OPERATIONS true
75 #undef LANG_HOOKS_STATICP
76 #define LANG_HOOKS_STATICP c_staticp
77 #undef LANG_HOOKS_NO_BODY_BLOCKS
78 #define LANG_HOOKS_NO_BODY_BLOCKS true
79 #undef LANG_HOOKS_WARN_UNUSED_GLOBAL_DECL
80 #define LANG_HOOKS_WARN_UNUSED_GLOBAL_DECL c_warn_unused_global_decl
81 #undef LANG_HOOKS_PRINT_IDENTIFIER
82 #define LANG_HOOKS_PRINT_IDENTIFIER c_print_identifier
83 #undef LANG_HOOKS_FUNCTION_ENTER_NESTED
84 #define LANG_HOOKS_FUNCTION_ENTER_NESTED c_push_function_context
85 #undef LANG_HOOKS_FUNCTION_LEAVE_NESTED
86 #define LANG_HOOKS_FUNCTION_LEAVE_NESTED c_pop_function_context
87 #undef LANG_HOOKS_FUNCTION_MISSING_NORETURN_OK_P
88 #define LANG_HOOKS_FUNCTION_MISSING_NORETURN_OK_P c_missing_noreturn_ok_p
89 #undef LANG_HOOKS_DUP_LANG_SPECIFIC_DECL
90 #define LANG_HOOKS_DUP_LANG_SPECIFIC_DECL c_dup_lang_specific_decl
92 /* Attribute hooks. */
93 #undef LANG_HOOKS_COMMON_ATTRIBUTE_TABLE
94 #define LANG_HOOKS_COMMON_ATTRIBUTE_TABLE c_common_attribute_table
95 #undef LANG_HOOKS_FORMAT_ATTRIBUTE_TABLE
96 #define LANG_HOOKS_FORMAT_ATTRIBUTE_TABLE c_common_format_attribute_table
98 #undef LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN
99 #define LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN \
100 c_cannot_inline_tree_fn
101 #undef LANG_HOOKS_TREE_INLINING_DISREGARD_INLINE_LIMITS
102 #define LANG_HOOKS_TREE_INLINING_DISREGARD_INLINE_LIMITS \
103 c_disregard_inline_limits
104 #undef LANG_HOOKS_TREE_INLINING_ANON_AGGR_TYPE_P
105 #define LANG_HOOKS_TREE_INLINING_ANON_AGGR_TYPE_P \
106 anon_aggr_type_p
107 #undef LANG_HOOKS_TREE_INLINING_CONVERT_PARM_FOR_INLINING
108 #define LANG_HOOKS_TREE_INLINING_CONVERT_PARM_FOR_INLINING \
109 c_convert_parm_for_inlining
110 #undef LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN
111 #define LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN c_dump_tree
113 #undef LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION
114 #define LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION c_expand_body
116 #undef LANG_HOOKS_TYPE_FOR_MODE
117 #define LANG_HOOKS_TYPE_FOR_MODE c_common_type_for_mode
118 #undef LANG_HOOKS_TYPE_FOR_SIZE
119 #define LANG_HOOKS_TYPE_FOR_SIZE c_common_type_for_size
120 #undef LANG_HOOKS_SIGNED_TYPE
121 #define LANG_HOOKS_SIGNED_TYPE c_common_signed_type
122 #undef LANG_HOOKS_UNSIGNED_TYPE
123 #define LANG_HOOKS_UNSIGNED_TYPE c_common_unsigned_type
124 #undef LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE
125 #define LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE c_common_signed_or_unsigned_type
126 #undef LANG_HOOKS_INCOMPLETE_TYPE_ERROR
127 #define LANG_HOOKS_INCOMPLETE_TYPE_ERROR c_incomplete_type_error
128 #undef LANG_HOOKS_TYPE_PROMOTES_TO
129 #define LANG_HOOKS_TYPE_PROMOTES_TO c_type_promotes_to
130 #undef LANG_HOOKS_REGISTER_BUILTIN_TYPE
131 #define LANG_HOOKS_REGISTER_BUILTIN_TYPE c_register_builtin_type
133 /* The C front end's scoping structure is very different from
134 that expected by the language-independent code; it is best
135 to disable getdecls.
136 This means it must also provide its own write_globals. */
138 #undef LANG_HOOKS_GETDECLS
139 #define LANG_HOOKS_GETDECLS lhd_return_null_tree_v
140 #undef LANG_HOOKS_WRITE_GLOBALS
141 #define LANG_HOOKS_WRITE_GLOBALS c_write_global_declarations
143 /* Hooks for tree gimplification. */
144 #undef LANG_HOOKS_GIMPLIFY_EXPR
145 #define LANG_HOOKS_GIMPLIFY_EXPR c_gimplify_expr
147 #undef LANG_HOOKS_TYPES_COMPATIBLE_P
148 #define LANG_HOOKS_TYPES_COMPATIBLE_P c_types_compatible_p
150 /* ### When changing hooks, consider if ObjC needs changing too!! ### */
152 /* Each front end provides its own. */
153 const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
155 /* Tree code classes. */
157 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,
159 const char tree_code_type[] = {
160 #include "tree.def"
161 'x',
162 #include "c-common.def"
164 #undef DEFTREECODE
166 /* Table indexed by tree code giving number of expression
167 operands beyond the fixed part of the node structure.
168 Not used for types or decls. */
170 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) LENGTH,
172 const unsigned char tree_code_length[] = {
173 #include "tree.def"
175 #include "c-common.def"
177 #undef DEFTREECODE
179 /* Names of tree components.
180 Used for printing out the tree and error messages. */
181 #define DEFTREECODE(SYM, NAME, TYPE, LEN) NAME,
183 const char *const tree_code_name[] = {
184 #include "tree.def"
185 "@@dummy",
186 #include "c-common.def"
188 #undef DEFTREECODE
190 /* Final processing of file-scope data. The Objective-C version of
191 this function still does something. */
192 void
193 finish_file (void)
198 c_types_compatible_p (tree x, tree y)
200 return comptypes (TYPE_MAIN_VARIANT (x), TYPE_MAIN_VARIANT (y));
203 #include "gtype-c.h"