/* Definitions for C parsing and type checking.
Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010
+ Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
+Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
for more details.
You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING. If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#ifndef GCC_C_TREE_H
#define GCC_C_TREE_H
-#include "c-common.h"
+#include "c-family/c-common.h"
#include "diagnostic.h"
/* struct lang_identifier is private to c-decl.c, but langhooks.c needs to
#define C_SIZEOF_STRUCT_LANG_IDENTIFIER \
(sizeof (struct c_common_identifier) + 3 * sizeof (void *))
-/* For gc purposes, return the most likely link for the longest chain. */
-#define C_LANG_TREE_NODE_CHAIN_NEXT(T) \
- ((union lang_tree_node *) \
- (TREE_CODE (T) == INTEGER_TYPE ? TYPE_NEXT_VARIANT (T) \
- : TREE_CODE (T) == COMPOUND_EXPR ? TREE_OPERAND (T, 1) \
- : TREE_CHAIN (T)))
-
-/* Language-specific declaration information. */
-
-struct lang_decl GTY(())
-{
- /* The return types and parameter types may have variable size.
- This is a list of any SAVE_EXPRs that need to be evaluated to
- compute those sizes. */
- tree pending_sizes;
-};
-
/* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */
#define C_TYPE_FIELDS_READONLY(TYPE) TREE_LANG_FLAG_1 (TYPE)
and C_RID_YYCODE is the token number wanted by Yacc. */
#define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_0 (ID)
-struct lang_type GTY(())
-{
- /* In a RECORD_TYPE, a sorted array of the fields of the type. */
- struct sorted_fields_type * GTY ((reorder ("resort_sorted_fields"))) s;
- /* In an ENUMERAL_TYPE, the min and max values. */
- tree enum_min;
- tree enum_max;
-};
-
/* Record whether a type or decl was written with nonconstant size.
Note that TYPE_SIZE may have simplified to a constant. */
#define C_TYPE_VARIABLE_SIZE(TYPE) TYPE_LANG_FLAG_1 (TYPE)
#define C_DECL_VARIABLE_SIZE(TYPE) DECL_LANG_FLAG_0 (TYPE)
+/* Record whether a type is defined inside a struct or union type.
+ This is used for -Wc++-compat. */
+#define C_TYPE_DEFINED_IN_STRUCT(TYPE) TYPE_LANG_FLAG_2 (TYPE)
+
/* Record whether a typedef for type `int' was actually `signed int'. */
#define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP)
/* For FUNCTION_DECLs, evaluates true if the decl is built-in but has
been declared. */
-#define C_DECL_DECLARED_BUILTIN(EXP) DECL_LANG_FLAG_3 (EXP)
+#define C_DECL_DECLARED_BUILTIN(EXP) \
+ DECL_LANG_FLAG_3 (FUNCTION_DECL_CHECK (EXP))
+
+/* For FUNCTION_DECLs, evaluates true if the decl is built-in, has a
+ built-in prototype and does not have a non-built-in prototype. */
+#define C_DECL_BUILTIN_PROTOTYPE(EXP) \
+ DECL_LANG_FLAG_6 (FUNCTION_DECL_CHECK (EXP))
/* Record whether a decl was declared register. This is strictly a
front-end flag, whereas DECL_REGISTER is used for code generation;
unevaluated operand of sizeof / typeof / alignof. This is only
used for functions declared static but not defined, though outside
sizeof and typeof it is set for other function decls as well. */
-#define C_DECL_USED(EXP) DECL_LANG_FLAG_5 (EXP)
+#define C_DECL_USED(EXP) DECL_LANG_FLAG_5 (FUNCTION_DECL_CHECK (EXP))
+
+/* Record whether a variable has been declared threadprivate by
+ #pragma omp threadprivate. */
+#define C_DECL_THREADPRIVATE_P(DECL) DECL_LANG_FLAG_3 (VAR_DECL_CHECK (DECL))
/* Nonzero for a decl which either doesn't exist or isn't a prototype.
N.B. Could be simplified if all built-in decls had complete prototypes
without prototypes. */
#define TYPE_ACTUAL_ARG_TYPES(NODE) TYPE_LANG_SLOT_1 (NODE)
+/* For a CONSTRUCTOR, whether some initializer contains a
+ subexpression meaning it is not a constant expression. */
+#define CONSTRUCTOR_NON_CONST(EXPR) TREE_LANG_FLAG_1 (CONSTRUCTOR_CHECK (EXPR))
+
/* Record parser information about an expression that is irrelevant
for code generation alongside a tree representing its value. */
struct c_expr
{
/* The value of the expression. */
tree value;
- /* Record the original binary operator of an expression, which may
- have been changed by fold, STRING_CST for unparenthesised string
- constants, or ERROR_MARK for other expressions (including
+ /* Record the original unary/binary operator of an expression, which may
+ have been changed by fold, STRING_CST for unparenthesized string
+ constants, C_MAYBE_CONST_EXPR for __builtin_constant_p calls
+ (even if parenthesized), for subexpressions, and for non-constant
+ initializers, or ERROR_MARK for other expressions (including
parenthesized expressions). */
enum tree_code original_code;
+ /* If not NULL, the original type of an expression. This will
+ differ from the type of the value field for an enum constant.
+ The type of an enum constant is a plain integer type, but this
+ field will be the enum type. */
+ tree original_type;
+};
+
+/* A kind of type specifier. Note that this information is currently
+ only used to distinguish tag definitions, tag references and typeof
+ uses. */
+enum c_typespec_kind {
+ /* A reserved keyword type specifier. */
+ ctsk_resword,
+ /* A reference to a tag, previously declared, such as "struct foo".
+ This includes where the previous declaration was as a different
+ kind of tag, in which case this is only valid if shadowing that
+ tag in an inner scope. */
+ ctsk_tagref,
+ /* A reference to a tag, not previously declared in a visible
+ scope. */
+ ctsk_tagfirstref,
+ /* A definition of a tag such as "struct foo { int a; }". */
+ ctsk_tagdef,
+ /* A typedef name. */
+ ctsk_typedef,
+ /* An ObjC-specific kind of type specifier. */
+ ctsk_objc,
+ /* A typeof specifier. */
+ ctsk_typeof
+};
+
+/* A type specifier: this structure is created in the parser and
+ passed to declspecs_add_type only. */
+struct c_typespec {
+ /* What kind of type specifier this is. */
+ enum c_typespec_kind kind;
+ /* Whether the expression has operands suitable for use in constant
+ expressions. */
+ bool expr_const_operands;
+ /* The specifier itself. */
+ tree spec;
+ /* An expression to be evaluated before the type specifier, in the
+ case of typeof specifiers, or NULL otherwise or if no such
+ expression is required for a particular typeof specifier. In
+ particular, when typeof is applied to an expression of variably
+ modified type, that expression must be evaluated in order to
+ determine array sizes that form part of the type, but the
+ expression itself (as opposed to the array sizes) forms no part
+ of the type and so needs to be recorded separately. */
+ tree expr;
};
/* A storage class specifier. */
};
/* A type specifier keyword "void", "_Bool", "char", "int", "float",
- "double", or none of these. */
+ "double", "_Decimal32", "_Decimal64", "_Decimal128", "_Fract", "_Accum",
+ or none of these. */
enum c_typespec_keyword {
cts_none,
cts_void,
cts_char,
cts_int,
cts_float,
- cts_double
+ cts_int128,
+ cts_double,
+ cts_dfloat32,
+ cts_dfloat64,
+ cts_dfloat128,
+ cts_fract,
+ cts_accum
};
/* A sequence of declaration specifiers in C. */
whole type, or NULL_TREE if none or a keyword such as "void" or
"char" is used. Does not include qualifiers. */
tree type;
+ /* Any expression to be evaluated before the type, from a typeof
+ specifier. */
+ tree expr;
/* The attributes from a typedef decl. */
tree decl_attr;
/* When parsing, the attributes. Outside the parser, this will be
NULL; attributes (possibly from multiple lists) will be passed
separately. */
tree attrs;
- /* Any type specifier keyword used such as "int", not reflecting
- modifiers such as "short", or cts_none if none. */
- enum c_typespec_keyword typespec_word;
/* The storage class specifier, or csc_none if none. */
enum c_storage_class storage_class;
+ /* Any type specifier keyword used such as "int", not reflecting
+ modifiers such as "short", or cts_none if none. */
+ ENUM_BITFIELD (c_typespec_keyword) typespec_word : 8;
+ /* Whether any expressions in typeof specifiers may appear in
+ constant expressions. */
+ BOOL_BITFIELD expr_const_operands : 1;
+ /* Whether any declaration specifiers have been seen at all. */
+ BOOL_BITFIELD declspecs_seen_p : 1;
+ /* Whether a type specifier has been seen. */
+ BOOL_BITFIELD type_seen_p : 1;
/* Whether something other than a storage class specifier or
attribute has been seen. This is used to warn for the
obsolescent usage of storage class specifiers other than at the
specifiers to be handled separately from storage class
specifiers.) */
BOOL_BITFIELD non_sc_seen_p : 1;
- /* Whether the type is specified by a typedef. */
+ /* Whether the type is specified by a typedef or typeof name. */
BOOL_BITFIELD typedef_p : 1;
+ /* Whether a struct, union or enum type either had its content
+ defined by a type specifier in the list or was the first visible
+ declaration of its tag. */
+ BOOL_BITFIELD tag_defined_p : 1;
/* Whether the type is explicitly "signed" or specified by a typedef
whose type is explicitly "signed". */
BOOL_BITFIELD explicit_signed_p : 1;
BOOL_BITFIELD deprecated_p : 1;
/* Whether the type defaulted to "int" because there were no type
specifiers. */
- BOOL_BITFIELD default_int_p;
+ BOOL_BITFIELD default_int_p : 1;
/* Whether "long" was specified. */
BOOL_BITFIELD long_p : 1;
/* Whether "long" was specified more than once. */
BOOL_BITFIELD volatile_p : 1;
/* Whether "restrict" was specified. */
BOOL_BITFIELD restrict_p : 1;
+ /* Whether "_Sat" was specified. */
+ BOOL_BITFIELD saturating_p : 1;
+ /* The address space that the declaration belongs to. */
+ addr_space_t address_space;
};
/* The various kinds of declarators in C. */
cdk_attrs
};
+typedef struct GTY(()) c_arg_tag_d {
+ /* The argument name. */
+ tree id;
+ /* The type of the argument. */
+ tree type;
+} c_arg_tag;
+
+DEF_VEC_O(c_arg_tag);
+DEF_VEC_ALLOC_O(c_arg_tag,gc);
+
/* Information about the parameters in a function declarator. */
struct c_arg_info {
/* A list of parameter decls. */
tree parms;
/* A list of structure, union and enum tags defined. */
- tree tags;
+ VEC(c_arg_tag,gc) *tags;
/* A list of argument types to go in the FUNCTION_TYPE. */
tree types;
/* A list of non-parameter decls (notably enumeration constants)
defined with the parameters. */
tree others;
+ /* A VEC of VLA sizes from the parameters. In a function
+ definition, these are used to ensure that side-effects in sizes
+ of arrays converted to pointers (such as a parameter int i[n++])
+ take place; otherwise, they are ignored. */
+ VEC(tree,gc) *pending_sizes;
+ /* True when these arguments had [*]. */
+ BOOL_BITFIELD had_vla_unspec : 1;
};
/* A declarator. */
struct c_declarator {
/* The kind of declarator. */
enum c_declarator_kind kind;
+ location_t id_loc; /* Currently only set for cdk_id, cdk_array. */
/* Except for cdk_id, the contained declarator. For cdk_id, NULL. */
struct c_declarator *declarator;
union {
struct c_declarator *declarator;
};
-/* Save and restore the variables in this file and elsewhere
- that keep track of the progress of compilation of the current function.
- Used for nested functions. */
-
-struct language_function GTY(())
+/* Used when parsing an enum. Initialized by start_enum. */
+struct c_enum_contents
{
- struct c_language_function base;
- tree x_break_label;
- tree x_cont_label;
- struct c_switch * GTY((skip)) x_switch_stack;
- struct c_arg_info * GTY((skip)) arg_info;
- int returns_value;
- int returns_null;
- int returns_abnormally;
- int warn_about_return_type;
- int extern_inline;
+ /* While defining an enum type, this is 1 plus the last enumerator
+ constant value. */
+ tree enum_next_value;
+
+ /* Nonzero means that there was overflow computing enum_next_value. */
+ int enum_overflow;
+};
+
+/* A type of reference to a static identifier in an inline
+ function. */
+enum c_inline_static_type {
+ /* Identifier with internal linkage used in function that may be an
+ inline definition (i.e., file-scope static). */
+ csi_internal,
+ /* Modifiable object with static storage duration defined in
+ function that may be an inline definition (i.e., local
+ static). */
+ csi_modifiable
};
\f
-/* in c-parse.in */
+/* in c-parser.c */
extern void c_parse_init (void);
/* in c-aux-info.c */
extern void gen_aux_info_record (tree, int, int, int);
/* in c-decl.c */
+struct c_spot_bindings;
+struct c_struct_parse_info;
extern struct obstack parser_obstack;
extern tree c_break_label;
extern tree c_cont_label;
extern int global_bindings_p (void);
extern void push_scope (void);
extern tree pop_scope (void);
-extern void insert_block (tree);
-extern tree pushdecl (tree);
-extern void c_expand_body (tree);
+extern void c_bindings_start_stmt_expr (struct c_spot_bindings *);
+extern void c_bindings_end_stmt_expr (struct c_spot_bindings *);
+extern void record_inline_static (location_t, tree, tree,
+ enum c_inline_static_type);
extern void c_init_decl_processing (void);
-extern void c_dup_lang_specific_decl (tree);
extern void c_print_identifier (FILE *, tree, int);
extern int quals_from_declspecs (const struct c_declspecs *);
-extern struct c_declarator *build_array_declarator (tree, struct c_declspecs *,
+extern struct c_declarator *build_array_declarator (location_t, tree,
+ struct c_declspecs *,
bool, bool);
-extern tree build_enumerator (tree, tree);
-extern void check_for_loop_decls (void);
+extern tree build_enumerator (location_t, location_t, struct c_enum_contents *,
+ tree, tree);
+extern tree check_for_loop_decls (location_t);
extern void mark_forward_parm_decls (void);
-extern int complete_array_type (tree, tree, int);
extern void declare_parm_level (void);
-extern void undeclared_variable (tree);
+extern void undeclared_variable (location_t, tree);
+extern tree lookup_label_for_goto (location_t, tree);
extern tree declare_label (tree);
extern tree define_label (location_t, tree);
-extern void finish_decl (tree, tree, tree);
+extern struct c_spot_bindings *c_get_switch_bindings (void);
+extern void c_release_switch_bindings (struct c_spot_bindings *);
+extern bool c_check_switch_jump_warnings (struct c_spot_bindings *,
+ location_t, location_t);
+extern void finish_decl (tree, location_t, tree, tree, tree);
extern tree finish_enum (tree, tree, tree);
extern void finish_function (void);
-extern tree finish_struct (tree, tree, tree);
+extern tree finish_struct (location_t, tree, tree, tree,
+ struct c_struct_parse_info *);
+extern struct c_arg_info *build_arg_info (void);
extern struct c_arg_info *get_parm_info (bool);
-extern tree grokfield (struct c_declarator *, struct c_declspecs *, tree);
-extern tree groktypename (struct c_type_name *);
+extern tree grokfield (location_t, struct c_declarator *,
+ struct c_declspecs *, tree, tree *);
+extern tree groktypename (struct c_type_name *, tree *, bool *);
extern tree grokparm (const struct c_parm *);
-extern tree implicitly_declare (tree);
+extern tree implicitly_declare (location_t, tree);
extern void keep_next_level (void);
-extern tree lookup_name (tree);
extern void pending_xref_error (void);
-extern void c_push_function_context (struct function *);
-extern void c_pop_function_context (struct function *);
+extern void c_push_function_context (void);
+extern void c_pop_function_context (void);
extern void push_parm_decl (const struct c_parm *);
-extern tree pushdecl_top_level (tree);
extern struct c_declarator *set_array_declarator_inner (struct c_declarator *,
- struct c_declarator *,
- bool);
-extern tree builtin_function (const char *, tree, int, enum built_in_class,
- const char *, tree);
+ struct c_declarator *);
+extern tree c_builtin_function (tree);
+extern tree c_builtin_function_ext_scope (tree);
extern void shadow_tag (const struct c_declspecs *);
extern void shadow_tag_warned (const struct c_declspecs *, int);
-extern tree start_enum (tree);
+extern tree start_enum (location_t, struct c_enum_contents *, tree);
extern int start_function (struct c_declspecs *, struct c_declarator *, tree);
extern tree start_decl (struct c_declarator *, struct c_declspecs *, bool,
tree);
-extern tree start_struct (enum tree_code, tree);
+extern tree start_struct (location_t, enum tree_code, tree,
+ struct c_struct_parse_info **);
extern void store_parm_decls (void);
extern void store_parm_decls_from (struct c_arg_info *);
extern tree xref_tag (enum tree_code, tree);
+extern struct c_typespec parser_xref_tag (location_t, enum tree_code, tree);
extern int c_expand_decl (tree);
extern struct c_parm *build_c_parm (struct c_declspecs *, tree,
struct c_declarator *);
struct c_declarator *);
extern struct c_declspecs *build_null_declspecs (void);
extern struct c_declspecs *declspecs_add_qual (struct c_declspecs *, tree);
-extern struct c_declspecs *declspecs_add_type (struct c_declspecs *, tree);
+extern struct c_declspecs *declspecs_add_type (location_t,
+ struct c_declspecs *,
+ struct c_typespec);
extern struct c_declspecs *declspecs_add_scspec (struct c_declspecs *, tree);
extern struct c_declspecs *declspecs_add_attrs (struct c_declspecs *, tree);
+extern struct c_declspecs *declspecs_add_addrspace (struct c_declspecs *,
+ addr_space_t);
extern struct c_declspecs *finish_declspecs (struct c_declspecs *);
/* in c-objc-common.c */
-extern int c_disregard_inline_limits (tree);
-extern int c_cannot_inline_tree_fn (tree *);
extern bool c_objc_common_init (void);
extern bool c_missing_noreturn_ok_p (tree);
-extern tree c_objc_common_truthvalue_conversion (tree expr);
-extern int defer_fn (tree);
-extern bool c_warn_unused_global_decl (tree);
+extern bool c_warn_unused_global_decl (const_tree);
extern void c_initialize_diagnostics (diagnostic_context *);
-
-#define c_build_type_variant(TYPE, CONST_P, VOLATILE_P) \
- c_build_qualified_type ((TYPE), \
- ((CONST_P) ? TYPE_QUAL_CONST : 0) | \
- ((VOLATILE_P) ? TYPE_QUAL_VOLATILE : 0))
+extern bool c_vla_unspec_p (tree x, tree fn);
/* in c-typeck.c */
+extern bool in_late_binary_op;
extern int in_alignof;
extern int in_sizeof;
extern int in_typeof;
extern struct c_switch *c_switch_stack;
+extern tree c_objc_common_truthvalue_conversion (location_t, tree);
extern tree require_complete_type (tree);
-extern int same_translation_unit_p (tree, tree);
+extern int same_translation_unit_p (const_tree, const_tree);
extern int comptypes (tree, tree);
-extern tree c_size_in_bytes (tree);
+extern int comptypes_check_different_types (tree, tree, bool *);
+extern bool c_vla_type_p (const_tree);
extern bool c_mark_addressable (tree);
-extern void c_incomplete_type_error (tree, tree);
+extern void c_incomplete_type_error (const_tree, const_tree);
extern tree c_type_promotes_to (tree);
+extern struct c_expr default_function_array_conversion (location_t,
+ struct c_expr);
+extern struct c_expr default_function_array_read_conversion (location_t,
+ struct c_expr);
+extern void mark_exp_read (tree);
extern tree composite_type (tree, tree);
-extern tree build_component_ref (tree, tree);
-extern tree build_indirect_ref (tree, const char *);
-extern tree build_array_ref (tree, tree);
-extern tree build_external_ref (tree, int);
-extern void record_maybe_used_decl (tree);
+extern tree build_component_ref (location_t, tree, tree);
+extern tree build_array_ref (location_t, tree, tree);
+extern tree build_external_ref (location_t, tree, int, tree *);
extern void pop_maybe_used (bool);
-extern struct c_expr c_expr_sizeof_expr (struct c_expr);
-extern struct c_expr c_expr_sizeof_type (struct c_type_name *);
-extern struct c_expr parser_build_binary_op (enum tree_code, struct c_expr,
+extern struct c_expr c_expr_sizeof_expr (location_t, struct c_expr);
+extern struct c_expr c_expr_sizeof_type (location_t, struct c_type_name *);
+extern struct c_expr parser_build_unary_op (location_t, enum tree_code,
+ struct c_expr);
+extern struct c_expr parser_build_binary_op (location_t,
+ enum tree_code, struct c_expr,
struct c_expr);
-extern tree build_conditional_expr (tree, tree, tree);
-extern tree build_compound_expr (tree, tree);
-extern tree c_cast_expr (struct c_type_name *, tree);
-extern tree build_c_cast (tree, tree);
-extern tree build_modify_expr (tree, enum tree_code, tree);
-extern void store_init_value (tree, tree);
+extern tree build_conditional_expr (location_t, tree, bool, tree, tree,
+ tree, tree);
+extern tree build_compound_expr (location_t, tree, tree);
+extern tree c_cast_expr (location_t, struct c_type_name *, tree);
+extern tree build_c_cast (location_t, tree, tree);
+extern void store_init_value (location_t, tree, tree, tree);
extern void error_init (const char *);
-extern void pedwarn_init (const char *);
+extern void pedwarn_init (location_t, int opt, const char *);
extern void maybe_warn_string_init (tree, struct c_expr);
extern void start_init (tree, tree, int);
extern void finish_init (void);
extern void really_start_incremental_init (tree);
-extern void push_init_level (int);
-extern struct c_expr pop_init_level (int);
-extern void set_init_index (tree, tree);
-extern void set_init_label (tree);
-extern void process_init_element (struct c_expr);
-extern tree build_compound_literal (tree, tree);
-extern tree c_start_case (tree);
+extern void push_init_level (int, struct obstack *);
+extern struct c_expr pop_init_level (int, struct obstack *);
+extern void set_init_index (tree, tree, struct obstack *);
+extern void set_init_label (tree, struct obstack *);
+extern void process_init_element (struct c_expr, bool, struct obstack *);
+extern tree build_compound_literal (location_t, tree, tree, bool);
+extern void check_compound_literal_type (location_t, struct c_type_name *);
+extern tree c_start_case (location_t, location_t, tree);
extern void c_finish_case (tree);
-extern tree build_asm_expr (tree, tree, tree, tree, bool);
+extern tree build_asm_expr (location_t, tree, tree, tree, tree, tree, bool);
extern tree build_asm_stmt (tree, tree);
-extern tree c_convert_parm_for_inlining (tree, tree, tree, int);
extern int c_types_compatible_p (tree, tree);
extern tree c_begin_compound_stmt (bool);
-extern tree c_end_compound_stmt (tree, bool);
+extern tree c_end_compound_stmt (location_t, tree, bool);
extern void c_finish_if_stmt (location_t, tree, tree, tree, bool);
extern void c_finish_loop (location_t, tree, tree, tree, tree, tree, bool);
extern tree c_begin_stmt_expr (void);
-extern tree c_finish_stmt_expr (tree);
-extern tree c_process_expr_stmt (tree);
-extern tree c_finish_expr_stmt (tree);
-extern tree c_finish_return (tree);
-extern tree c_finish_bc_stmt (tree *, bool);
-extern tree c_finish_goto_label (tree);
-extern tree c_finish_goto_ptr (tree);
+extern tree c_finish_stmt_expr (location_t, tree);
+extern tree c_process_expr_stmt (location_t, tree);
+extern tree c_finish_expr_stmt (location_t, tree);
+extern tree c_finish_return (location_t, tree, tree);
+extern tree c_finish_bc_stmt (location_t, tree *, bool);
+extern tree c_finish_goto_label (location_t, tree);
+extern tree c_finish_goto_ptr (location_t, tree);
+extern tree c_expr_to_decl (tree, bool *, bool *);
+extern tree c_begin_omp_parallel (void);
+extern tree c_finish_omp_parallel (location_t, tree, tree);
+extern tree c_begin_omp_task (void);
+extern tree c_finish_omp_task (location_t, tree, tree);
+extern tree c_finish_omp_clauses (tree);
+extern tree c_build_va_arg (location_t, tree, tree);
/* Set to 0 at beginning of a function definition, set to 1 if
a return statement that specifies a return value is seen. */
extern bool c_override_global_bindings_to_false;
-/* True means we've initialized exception handling. */
-extern bool c_eh_initialized_p;
-
/* In c-decl.c */
extern void c_finish_incomplete_decl (tree);
extern void c_write_global_declarations (void);
-/* In order for the format checking to accept the C frontend
- diagnostic framework extensions, you must include this file before
- toplev.h, not after. */
-#define GCC_DIAG_STYLE __gcc_cdiag__
-#if GCC_VERSION >= 3005
-#define ATTRIBUTE_GCC_CDIAG(m, n) __attribute__ ((__format__ (GCC_DIAG_STYLE, m ,n))) ATTRIBUTE_NONNULL(m)
-#else
-#define ATTRIBUTE_GCC_CDIAG(m, n) ATTRIBUTE_NONNULL(m)
-#endif
-
-extern void pedwarn_c90 (const char *, ...) ATTRIBUTE_GCC_CDIAG(1,2);
-extern void pedwarn_c99 (const char *, ...) ATTRIBUTE_GCC_CDIAG(1,2);
+/* In c-errors.c */
+extern void pedwarn_c90 (location_t, int opt, const char *, ...) ATTRIBUTE_GCC_DIAG(3,4);
+extern void pedwarn_c99 (location_t, int opt, const char *, ...) ATTRIBUTE_GCC_DIAG(3,4);
#endif /* ! GCC_C_TREE_H */
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