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Diffstat (limited to 'lib/gcc/arm-none-eabi/13.2.1/plugin/include/c-tree.h')
| -rw-r--r-- | lib/gcc/arm-none-eabi/13.2.1/plugin/include/c-tree.h | 911 |
1 files changed, 911 insertions, 0 deletions
diff --git a/lib/gcc/arm-none-eabi/13.2.1/plugin/include/c-tree.h b/lib/gcc/arm-none-eabi/13.2.1/plugin/include/c-tree.h new file mode 100644 index 0000000..e6b6fe9 --- /dev/null +++ b/lib/gcc/arm-none-eabi/13.2.1/plugin/include/c-tree.h @@ -0,0 +1,911 @@ +/* Definitions for C parsing and type checking. + Copyright (C) 1987-2023 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.cc, but langhooks.cc needs to + know how big it is. This is sanity-checked in c-decl.cc. */ +#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, nonzero if any component is + volatile, restrict-qualified or atomic; that is, has a type not + permitted for a constexpr object. */ +#define C_TYPE_FIELDS_NON_CONSTEXPR(TYPE) TREE_LANG_FLAG_4 (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, UNION_TYPE or ENUMERAL_TYPE, a list of + variable declarations whose type would be completed by completing + that type. */ +#define C_TYPE_INCOMPLETE_VARS(TYPE) \ + TYPE_LANG_SLOT_1 (TREE_CHECK4 (TYPE, RECORD_TYPE, UNION_TYPE, \ + QUAL_UNION_TYPE, ENUMERAL_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. */ +#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 variably modified. */ +#define C_TYPE_VARIABLY_MODIFIED(TYPE) TYPE_LANG_FLAG_6 (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 a PARM_DECL, nonzero if it was declared as an array. */ +#define C_ARRAY_PARAMETER(NODE) DECL_LANG_FLAG_0 (NODE) + +/* 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)) + +/* Set on VAR_DECLs for compound literals. */ +#define C_DECL_COMPOUND_LITERAL_P(DECL) \ + DECL_LANG_FLAG_5 (VAR_DECL_CHECK (DECL)) + +/* Set on decls used as placeholders for a C2x underspecified object + definition. */ +#define C_DECL_UNDERSPECIFIED(DECL) DECL_LANG_FLAG_7 (DECL) + +/* Set on VAR_DECLs declared as 'constexpr'. */ +#define C_DECL_DECLARED_CONSTEXPR(DECL) \ + DECL_LANG_FLAG_8 (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)) \ + && !fndecl_built_in_p (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 (FUNCTION_TYPE_CHECK (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)) + +/* For a SAVE_EXPR, nonzero if the operand of the SAVE_EXPR has already + been folded. */ +#define SAVE_EXPR_FOLDED_P(EXP) TREE_LANG_FLAG_1 (SAVE_EXPR_CHECK (EXP)) + +/* Whether a type has boolean semantics: either a boolean type or an + enumeration type with a boolean type as its underlying type. */ +#define C_BOOLEAN_TYPE_P(TYPE) \ + (TREE_CODE (TYPE) == BOOLEAN_TYPE \ + || (TREE_CODE (TYPE) == ENUMERAL_TYPE \ + && ENUM_UNDERLYING_TYPE (TYPE) != NULL_TREE \ + && TREE_CODE (ENUM_UNDERLYING_TYPE (TYPE)) == BOOLEAN_TYPE)) + +/* 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; + + /* The source range of this expression. This is redundant + for node values that have locations, but not all node kinds + have locations (e.g. constants, and references to params, locals, + etc), so we stash a copy here. */ + source_range src_range; + + /* True if this was directly from a decimal constant token. */ + bool m_decimal : 1; + + /* Access to the first and last locations within the source spelling + of this expression. */ + location_t get_start () const { return src_range.m_start; } + location_t get_finish () const { return src_range.m_finish; } + + location_t get_location () const + { + if (EXPR_HAS_LOCATION (value)) + return EXPR_LOCATION (value); + else + return make_location (get_start (), get_start (), get_finish ()); + } + + /* Set the value to error_mark_node whilst ensuring that src_range + and m_decimal are initialized. */ + void set_error () + { + value = error_mark_node; + src_range.m_start = UNKNOWN_LOCATION; + src_range.m_finish = UNKNOWN_LOCATION; + m_decimal = 0; + } +}; + +/* 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, + /* Likewise, with standard attributes present in the reference. */ + ctsk_tagref_attrs, + /* A reference to a tag, not previously declared in a visible + scope. */ + ctsk_tagfirstref, + /* Likewise, with standard attributes present in the reference. */ + ctsk_tagfirstref_attrs, + /* 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; + /* Whether the type specifier includes an enum type specifier (that + is, ": specifier-qualifier-list" in a declaration using + "enum"). */ + bool has_enum_type_specifier; + /* 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_int_n, + cts_double, + cts_dfloat32, + cts_dfloat64, + cts_dfloat128, + cts_floatn_nx, + 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_atomic, + cdw_saturating, + cdw_alignas, + cdw_address_space, + cdw_gimple, + cdw_rtl, + cdw_number_of_elements /* This one must always be the last + enumerator. */ +}; + +enum c_declspec_il { + cdil_none, + cdil_gimple, /* __GIMPLE */ + cdil_gimple_cfg, /* __GIMPLE(cfg) */ + cdil_gimple_ssa, /* __GIMPLE(ssa) */ + cdil_rtl /* __RTL */ +}; + +/* 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 { + location_t 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 GNU attributes and prefix standard attributes. + Outside the parser, this will be NULL; attributes (possibly from + multiple lists) will be passed separately. */ + tree attrs; + /* When parsing, postfix standard attributes (which appertain to the + type specified by the preceding declaration specifiers, unlike + prefix standard attributes which appertain to the declaration or + declarations as a whole). */ + tree postfix_attrs; + /* The pass to start compiling a __GIMPLE or __RTL function with. */ + char *gimple_or_rtl_pass; + /* ENTRY BB count. */ + profile_count entry_bb_count; + /* 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; + /* For the __intN declspec, this stores the index into the int_n_* arrays. */ + int int_n_idx; + /* For the _FloatN and _FloatNx declspec, this stores the index into + the floatn_nx_types array. */ + int floatn_nx_idx; + /* 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 : 4; + ENUM_BITFIELD (c_declspec_il) declspec_il : 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 any declaration specifiers other than standard attributes + have been seen at all. If only standard attributes have been + seen, this is an attribute-declaration. */ + BOOL_BITFIELD non_std_attrs_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 specifiers include an unavailable typedef. */ + BOOL_BITFIELD unavailable_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; + /* Whether an enum type specifier (": specifier-qualifier-list") was + specified other than in a definition of that enum (if so, this is + invalid unless it is an empty declaration "enum identifier + enum-type-specifier;", but such an empty declaration is valid in + C2x when "enum identifier;" would not be). */ + BOOL_BITFIELD enum_type_specifier_ref_p : 1; + /* Whether "auto" was specified in C2X (or later) mode and means the + type is to be deduced from an initializer, or would mean that if + no type specifier appears later in these declaration + specifiers. */ + BOOL_BITFIELD c2x_auto_p : 1; + /* Whether "constexpr" was specified. */ + BOOL_BITFIELD constexpr_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 +}; + +struct c_arg_tag { + /* The argument name. */ + tree id; + /* The type of the argument. */ + tree type; +}; + + +/* 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; + /* True when the arguments are a (...) prototype. */ + BOOL_BITFIELD no_named_args_stdarg_p : 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. */ + struct { + /* An IDENTIFIER_NODE, or NULL_TREE if an abstract + declarator. */ + tree id; + /* Any attributes (which apply to the declaration rather than to + the type described by the outer declarators). */ + tree attrs; + } 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; + /* The location of the parameter. */ + location_t loc; +}; + +/* 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; + + /* The enumeration type itself. */ + tree enum_type; + + /* 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.cc */ +extern void c_parse_init (void); +extern bool c_keyword_starts_typename (enum rid keyword); + +/* in c-aux-info.cc */ +extern void gen_aux_info_record (tree, int, int, int); + +/* in c-decl.cc */ +struct c_spot_bindings; +class c_struct_parse_info; +extern struct obstack parser_obstack; +/* Set to IN_ITERATION_STMT if parsing an iteration-statement, + to IN_OMP_BLOCK if parsing OpenMP structured block and + IN_OMP_FOR if parsing OpenMP loop. If parsing a switch statement, + this is bitwise ORed with IN_SWITCH_STMT, unless parsing an + iteration-statement, OpenMP block or loop within that switch. */ +#define IN_SWITCH_STMT 1 +#define IN_ITERATION_STMT 2 +#define IN_OMP_BLOCK 4 +#define IN_OMP_FOR 8 +#define IN_OBJC_FOREACH 16 +extern unsigned char in_statement; + +extern bool switch_statement_break_seen_p; + +extern bool global_bindings_p (void); +extern tree pushdecl (tree); +extern unsigned int start_underspecified_init (location_t, tree); +extern void finish_underspecified_init (tree, unsigned int); +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 (location_t = input_location); +extern tree finish_struct (location_t, tree, tree, tree, + class c_struct_parse_info *); +extern tree c_simulate_enum_decl (location_t, const char *, + vec<string_int_pair> *); +extern tree c_simulate_record_decl (location_t, const char *, + array_slice<const tree>); +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 tree c_simulate_builtin_function_decl (tree); +extern void c_warn_unused_attributes (tree); +extern tree c_warn_type_attributes (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, tree); +extern bool start_function (struct c_declspecs *, struct c_declarator *, tree); +extern tree start_decl (struct c_declarator *, struct c_declspecs *, bool, + tree, bool = true, location_t * = NULL); +extern tree start_struct (location_t, enum tree_code, tree, + class 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, + bool, tree, bool); +extern struct c_parm *build_c_parm (struct c_declspecs *, tree, + struct c_declarator *, location_t); +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 (location_t, + 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 (location_t, + struct c_declspecs *, tree); +extern struct c_declspecs *declspecs_add_attrs (location_t, + struct c_declspecs *, tree); +extern struct c_declspecs *declspecs_add_addrspace (location_t, + struct c_declspecs *, + addr_space_t); +extern struct c_declspecs *declspecs_add_alignas (location_t, + struct c_declspecs *, tree); +extern struct c_declspecs *finish_declspecs (struct c_declspecs *); + +/* in c-objc-common.cc */ +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_var_mod_p (tree x, tree fn); +extern alias_set_type c_get_alias_set (tree); + +/* in c-typeck.cc */ +extern int in_alignof; +extern int in_sizeof; +extern int in_typeof; +extern bool c_in_omp_for; + +extern tree c_last_sizeof_arg; +extern location_t c_last_sizeof_loc; + +extern struct c_switch *c_switch_stack; + +extern bool null_pointer_constant_p (const_tree); + + +inline +bool c_type_variably_modified_p (tree t) +{ + return error_mark_node != t && C_TYPE_VARIABLY_MODIFIED (t); +} + + +extern bool char_type_p (tree); +extern tree c_objc_common_truthvalue_conversion (location_t, tree); +extern tree require_complete_type (location_t, tree); +extern bool same_translation_unit_p (const_tree, const_tree); +extern int comptypes (tree, tree); +extern int comptypes_check_different_types (tree, tree, bool *); +extern int comptypes_check_enum_int (tree, tree, bool *); +extern bool c_mark_addressable (tree, bool = false); +extern void c_incomplete_type_error (location_t, 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, bool = false); +extern tree decl_constant_value_1 (tree, bool); +extern void mark_exp_read (tree); +extern tree composite_type (tree, tree); +extern tree build_component_ref (location_t, tree, tree, location_t, + location_t); +extern tree build_array_ref (location_t, tree, tree); +extern tree build_external_ref (location_t, tree, bool, 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, + location_t, tree, tree, location_t); +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 maybe_warn_string_init (location_t, tree, struct c_expr); +extern void start_init (tree, tree, bool, bool, rich_location *); +extern void finish_init (void); +extern void really_start_incremental_init (tree); +extern void finish_implicit_inits (location_t, struct obstack *); +extern void push_init_level (location_t, int, struct obstack *); +extern struct c_expr pop_init_level (location_t, int, struct obstack *, + location_t); +extern void set_init_index (location_t, tree, tree, struct obstack *); +extern void set_init_label (location_t, tree, location_t, struct obstack *); +extern void process_init_element (location_t, struct c_expr, bool, + struct obstack *); +extern tree build_compound_literal (location_t, tree, tree, bool, + unsigned int, struct c_declspecs *); +extern void check_compound_literal_type (location_t, struct c_type_name *); +extern tree c_start_switch (location_t, location_t, tree, bool); +extern void c_finish_switch (tree, tree); +extern tree build_asm_expr (location_t, tree, tree, tree, tree, tree, bool, + bool); +extern tree build_asm_stmt (bool, 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); +extern void c_finish_loop (location_t, location_t, tree, location_t, 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, c_expr val); +extern tree c_expr_to_decl (tree, bool *, bool *); +extern tree c_finish_omp_construct (location_t, enum tree_code, tree, tree); +extern tree c_finish_oacc_data (location_t, tree, tree); +extern tree c_finish_oacc_host_data (location_t, tree, tree); +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, enum c_omp_region_type); +extern tree c_build_va_arg (location_t, tree, location_t, tree); +extern tree c_finish_transaction (location_t, tree, int); +extern bool c_tree_equal (tree, tree); +extern tree c_build_function_call_vec (location_t, const vec<location_t>&, + tree, vec<tree, va_gc> *, + vec<tree, va_gc> *); +extern tree c_omp_clause_copy_ctor (tree, 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; + +/* In c-decl.cc */ + +/* Tell the binding oracle what kind of binding we are looking for. */ + +enum c_oracle_request +{ + C_ORACLE_SYMBOL, + C_ORACLE_TAG, + C_ORACLE_LABEL +}; + +/* If this is non-NULL, then it is a "binding oracle" which can lazily + create bindings when needed by the C compiler. The oracle is told + the name and type of the binding to create. It can call pushdecl + or the like to ensure the binding is visible; or do nothing, + leaving the binding untouched. c-decl.cc takes note of when the + oracle has been called and will not call it again if it fails to + create a given binding. */ + +typedef void c_binding_oracle_function (enum c_oracle_request, tree identifier); + +extern c_binding_oracle_function *c_binding_oracle; + +extern void c_finish_incomplete_decl (tree); +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 *); +extern bool c_check_in_current_scope (tree); +extern void c_pushtag (location_t, tree, tree); +extern void c_bind (location_t, tree, bool); +extern bool tag_exists_p (enum tree_code, tree); + +/* In c-errors.cc */ +extern bool pedwarn_c90 (location_t, int opt, const char *, ...) + ATTRIBUTE_GCC_DIAG(3,4); +extern bool pedwarn_c99 (location_t, int opt, const char *, ...) + ATTRIBUTE_GCC_DIAG(3,4); +extern bool pedwarn_c11 (location_t, int opt, const char *, ...) + ATTRIBUTE_GCC_DIAG(3,4); + +extern void +set_c_expr_source_range (c_expr *expr, + location_t start, location_t finish); + +extern void +set_c_expr_source_range (c_expr *expr, + source_range src_range); + +/* In c-fold.cc */ +extern vec<tree> incomplete_record_decls; + +extern const char *c_get_sarif_source_language (const char *filename); + +#if CHECKING_P +namespace selftest { + extern void run_c_tests (void); +} // namespace selftest +#endif /* #if CHECKING_P */ + + +#endif /* ! GCC_C_TREE_H */ |