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Diffstat (limited to 'gcc-4.9/gcc/c/c-tree.h')
| -rw-r--r-- | gcc-4.9/gcc/c/c-tree.h | 678 |
1 files changed, 678 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/c/c-tree.h b/gcc-4.9/gcc/c/c-tree.h new file mode 100644 index 000000000..84d5e0b08 --- /dev/null +++ b/gcc-4.9/gcc/c/c-tree.h @@ -0,0 +1,678 @@ +/* Definitions for C parsing and type checking. + Copyright (C) 1987-2014 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 3, or (at your option) any later +version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +for more details. + +You should have received a copy of the GNU General Public License +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-family/c-common.h" +#include "diagnostic.h" + +/* struct lang_identifier is private to c-decl.c, but langhooks.c needs to + know how big it is. This is sanity-checked in c-decl.c. */ +#define C_SIZEOF_STRUCT_LANG_IDENTIFIER \ + (sizeof (struct c_common_identifier) + 3 * sizeof (void *)) + +/* 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) + +/* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is volatile. */ +#define C_TYPE_FIELDS_VOLATILE(TYPE) TREE_LANG_FLAG_2 (TYPE) + +/* In a RECORD_TYPE or UNION_TYPE or ENUMERAL_TYPE + nonzero if the definition of the type has already started. */ +#define C_TYPE_BEING_DEFINED(TYPE) TYPE_LANG_FLAG_0 (TYPE) + +/* In an incomplete RECORD_TYPE or UNION_TYPE, a list of variable + declarations whose type would be completed by completing that type. */ +#define C_TYPE_INCOMPLETE_VARS(TYPE) TYPE_VFIELD (TYPE) + +/* In an IDENTIFIER_NODE, nonzero if this identifier is actually a + keyword. C_RID_CODE (node) is then the RID_* value of the keyword, + and C_RID_YYCODE is the token number wanted by Yacc. */ +#define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_0 (ID) + +/* 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 a FUNCTION_DECL, nonzero if it was defined without an explicit + return type. */ +#define C_FUNCTION_IMPLICIT_INT(EXP) DECL_LANG_FLAG_1 (EXP) + +/* For a FUNCTION_DECL, nonzero if it was an implicit declaration. */ +#define C_DECL_IMPLICIT(EXP) DECL_LANG_FLAG_2 (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 (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; + they may differ for structures with volatile fields. */ +#define C_DECL_REGISTER(EXP) DECL_LANG_FLAG_4 (EXP) + +/* Record whether a decl was used in an expression anywhere except an + 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 (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 + (but this is presently difficult because some of them need FILE*). */ +#define C_DECL_ISNT_PROTOTYPE(EXP) \ + (EXP == 0 \ + || (!prototype_p (TREE_TYPE (EXP)) \ + && !DECL_BUILT_IN (EXP))) + +/* For FUNCTION_TYPE, a hidden list of types of arguments. The same as + TYPE_ARG_TYPES for functions with prototypes, but created for functions + 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 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; +}; + +/* Type alias for struct c_expr. This allows to use the structure + inside the VEC types. */ +typedef struct c_expr c_expr_t; + +/* 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 { + /* No typespec. This appears only in struct c_declspec. */ + ctsk_none, + /* 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, or _Atomic ( type-name ). */ + 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. */ +enum c_storage_class { + csc_none, + csc_auto, + csc_extern, + csc_register, + csc_static, + csc_typedef +}; + +/* A type specifier keyword "void", "_Bool", "char", "int", "float", + "double", "_Decimal32", "_Decimal64", "_Decimal128", "_Fract", "_Accum", + or none of these. */ +enum c_typespec_keyword { + cts_none, + cts_void, + cts_bool, + cts_char, + cts_int, + cts_float, + cts_int128, + cts_double, + cts_dfloat32, + cts_dfloat64, + cts_dfloat128, + cts_fract, + cts_accum, + cts_auto_type +}; + +/* This enum lists all the possible declarator specifiers, storage + class or attribute that a user can write. There is at least one + enumerator per possible declarator specifier in the struct + c_declspecs below. + + It is used to index the array of declspec locations in struct + c_declspecs. */ +enum c_declspec_word { + cdw_typespec /* A catch-all for a typespec. */, + cdw_storage_class /* A catch-all for a storage class */, + cdw_attributes, + cdw_typedef, + cdw_explicit_signed, + cdw_deprecated, + cdw_default_int, + cdw_long, + cdw_long_long, + cdw_short, + cdw_signed, + cdw_unsigned, + cdw_complex, + cdw_inline, + cdw_noreturn, + cdw_thread, + cdw_const, + cdw_volatile, + cdw_restrict, + cdw_saturating, + cdw_alignas, + cdw_address_space, + cdw_number_of_elements /* This one must always be the last + enumerator. */ +}; + +/* A sequence of declaration specifiers in C. When a new declaration + specifier is added, please update the enum c_declspec_word above + accordingly. */ +struct c_declspecs { + source_location locations[cdw_number_of_elements]; + /* The type specified, if a single type specifier such as a struct, + union or enum specifier, typedef name or typeof specifies the + 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; + /* The base-2 log of the greatest alignment required by an _Alignas + specifier, in bytes, or -1 if no such specifiers with nonzero + alignment. */ + int align_log; + /* 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; + /* The kind of type specifier if one has been seen, ctsk_none + otherwise. */ + ENUM_BITFIELD (c_typespec_kind) typespec_kind : 3; + /* 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 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 + start of the list. (Doing this properly would require function + specifiers to be handled separately from storage class + specifiers.) */ + BOOL_BITFIELD non_sc_seen_p : 1; + /* Whether the type is specified by a typedef or typeof name. */ + BOOL_BITFIELD typedef_p : 1; + /* Whether the type is explicitly "signed" or specified by a typedef + whose type is explicitly "signed". */ + BOOL_BITFIELD explicit_signed_p : 1; + /* Whether the specifiers include a deprecated typedef. */ + BOOL_BITFIELD deprecated_p : 1; + /* Whether the type defaulted to "int" because there were no type + specifiers. */ + BOOL_BITFIELD default_int_p : 1; + /* Whether "long" was specified. */ + BOOL_BITFIELD long_p : 1; + /* Whether "long" was specified more than once. */ + BOOL_BITFIELD long_long_p : 1; + /* Whether "short" was specified. */ + BOOL_BITFIELD short_p : 1; + /* Whether "signed" was specified. */ + BOOL_BITFIELD signed_p : 1; + /* Whether "unsigned" was specified. */ + BOOL_BITFIELD unsigned_p : 1; + /* Whether "complex" was specified. */ + BOOL_BITFIELD complex_p : 1; + /* Whether "inline" was specified. */ + BOOL_BITFIELD inline_p : 1; + /* Whether "_Noreturn" was speciied. */ + BOOL_BITFIELD noreturn_p : 1; + /* Whether "__thread" or "_Thread_local" was specified. */ + BOOL_BITFIELD thread_p : 1; + /* Whether "__thread" rather than "_Thread_local" was specified. */ + BOOL_BITFIELD thread_gnu_p : 1; + /* Whether "const" was specified. */ + BOOL_BITFIELD const_p : 1; + /* Whether "volatile" was specified. */ + BOOL_BITFIELD volatile_p : 1; + /* Whether "restrict" was specified. */ + BOOL_BITFIELD restrict_p : 1; + /* Whether "_Atomic" was specified. */ + BOOL_BITFIELD atomic_p : 1; + /* Whether "_Sat" was specified. */ + BOOL_BITFIELD saturating_p : 1; + /* Whether any alignment specifier (even with zero alignment) was + specified. */ + BOOL_BITFIELD alignas_p : 1; + /* The address space that the declaration belongs to. */ + addr_space_t address_space; +}; + +/* The various kinds of declarators in C. */ +enum c_declarator_kind { + /* An identifier. */ + cdk_id, + /* A function. */ + cdk_function, + /* An array. */ + cdk_array, + /* A pointer. */ + cdk_pointer, + /* Parenthesized declarator with nested attributes. */ + cdk_attrs +}; + +typedef struct c_arg_tag_d { + /* The argument name. */ + tree id; + /* The type of the argument. */ + tree type; +} c_arg_tag; + + +/* 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. */ + vec<c_arg_tag, va_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 compound expression of VLA sizes from the parameters, or NULL. + 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. */ + tree 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 { + /* For identifiers, an IDENTIFIER_NODE or NULL_TREE if an abstract + declarator. */ + tree id; + /* For functions. */ + struct c_arg_info *arg_info; + /* For arrays. */ + struct { + /* The array dimension, or NULL for [] and [*]. */ + tree dimen; + /* The qualifiers inside []. */ + int quals; + /* The attributes (currently ignored) inside []. */ + tree attrs; + /* Whether [static] was used. */ + BOOL_BITFIELD static_p : 1; + /* Whether [*] was used. */ + BOOL_BITFIELD vla_unspec_p : 1; + } array; + /* For pointers, the qualifiers on the pointer type. */ + int pointer_quals; + /* For attributes. */ + tree attrs; + } u; +}; + +/* A type name. */ +struct c_type_name { + /* The declaration specifiers. */ + struct c_declspecs *specs; + /* The declarator. */ + struct c_declarator *declarator; +}; + +/* A parameter. */ +struct c_parm { + /* The declaration specifiers, minus any prefix attributes. */ + struct c_declspecs *specs; + /* The attributes. */ + tree attrs; + /* The declarator. */ + struct c_declarator *declarator; +}; + +/* Used when parsing an enum. Initialized by start_enum. */ +struct c_enum_contents +{ + /* 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 +}; + + +/* 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 bool global_bindings_p (void); +extern void push_scope (void); +extern tree pop_scope (void); +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_print_identifier (FILE *, tree, int); +extern int quals_from_declspecs (const struct c_declspecs *); +extern struct c_declarator *build_array_declarator (location_t, tree, + struct c_declspecs *, + bool, bool); +extern tree build_enumerator (location_t, location_t, struct c_enum_contents *, + tree, tree); +extern tree check_for_loop_decls (location_t, bool); +extern void mark_forward_parm_decls (void); +extern void declare_parm_level (void); +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 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 (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, tree); +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 *, tree *); +extern tree implicitly_declare (location_t, tree); +extern void keep_next_level (void); +extern void pending_xref_error (void); +extern void c_push_function_context (void); +extern void c_pop_function_context (void); +extern void push_parm_decl (const struct c_parm *, tree *); +extern struct c_declarator *set_array_declarator_inner (struct c_declarator *, + 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 (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 (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 void temp_store_parm_decls (tree, tree); +extern void temp_pop_parm_decls (void); +extern tree xref_tag (enum tree_code, tree); +extern struct c_typespec parser_xref_tag (location_t, enum tree_code, tree); +extern struct c_parm *build_c_parm (struct c_declspecs *, tree, + struct c_declarator *); +extern struct c_declarator *build_attrs_declarator (tree, + struct c_declarator *); +extern struct c_declarator *build_function_declarator (struct c_arg_info *, + struct c_declarator *); +extern struct c_declarator *build_id_declarator (tree); +extern struct c_declarator *make_pointer_declarator (struct c_declspecs *, + struct c_declarator *); +extern struct c_declspecs *build_null_declspecs (void); +extern struct c_declspecs *declspecs_add_qual (source_location, + 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 (source_location, + struct c_declspecs *, tree); +extern struct c_declspecs *declspecs_add_attrs (source_location, + struct c_declspecs *, tree); +extern struct c_declspecs *declspecs_add_addrspace (source_location, + struct c_declspecs *, + addr_space_t); +extern struct c_declspecs *declspecs_add_alignas (source_location, + struct c_declspecs *, tree); +extern struct c_declspecs *finish_declspecs (struct c_declspecs *); + +/* in c-objc-common.c */ +extern bool c_objc_common_init (void); +extern bool c_missing_noreturn_ok_p (tree); +extern bool c_warn_unused_global_decl (const_tree); +extern void c_initialize_diagnostics (diagnostic_context *); +extern bool c_vla_unspec_p (tree x, tree fn); + +/* in c-typeck.c */ +extern int in_alignof; +extern int in_sizeof; +extern int in_typeof; + +extern tree c_last_sizeof_arg; + +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 (const_tree, const_tree); +extern int comptypes (tree, 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 (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 struct c_expr convert_lvalue_to_rvalue (location_t, struct c_expr, + bool, bool); +extern void mark_exp_read (tree); +extern tree composite_type (tree, 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 (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 (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 (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, 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 (location_t, tree, tree, tree, tree, tree, bool); +extern tree build_asm_stmt (tree, tree); +extern int c_types_compatible_p (tree, tree); +extern tree c_begin_compound_stmt (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 (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 void c_finish_omp_cancel (location_t, tree); +extern void c_finish_omp_cancellation_point (location_t, tree); +extern tree c_finish_omp_clauses (tree); +extern tree c_build_va_arg (location_t, tree, tree); +extern tree c_finish_transaction (location_t, tree, int); +extern bool c_tree_equal (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 int current_function_returns_value; + +/* Set to 0 at beginning of a function definition, set to 1 if + a return statement with no argument is seen. */ + +extern int current_function_returns_null; + +/* Set to 0 at beginning of a function definition, set to 1 if + a call to a noreturn function is seen. */ + +extern int current_function_returns_abnormally; + +/* Mode used to build pointers (VOIDmode means ptr_mode). */ + +extern enum machine_mode c_default_pointer_mode; + +/* In c-decl.c */ +extern void c_finish_incomplete_decl (tree); +extern void c_write_global_declarations (void); +extern tree c_omp_reduction_id (enum tree_code, tree); +extern tree c_omp_reduction_decl (tree); +extern tree c_omp_reduction_lookup (tree, tree); +extern tree c_check_omp_declare_reduction_r (tree *, int *, void *); + +/* 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 */ |