/* Definitions for c-common.c.
Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007 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_COMMON_H
#define GCC_C_COMMON_H
IDENTIFIER_MARKED (used by search routines).
DECL_PRETTY_FUNCTION_P (in VAR_DECL)
1: C_DECLARED_LABEL_FLAG (in LABEL_DECL)
- STMT_IS_FULL_EXPR_P (in _STMT)
STATEMENT_LIST_STMT_EXPR (in STATEMENT_LIST)
2: unused
3: STATEMENT_LIST_HAS_LABEL (in STATEMENT_LIST)
RID_VOLATILE, RID_SIGNED, RID_AUTO, RID_RESTRICT,
/* C extensions */
- RID_COMPLEX, RID_THREAD,
+ RID_COMPLEX, RID_THREAD, RID_SAT,
/* C++ */
RID_FRIEND, RID_VIRTUAL, RID_EXPLICIT, RID_EXPORT, RID_MUTABLE,
RID_ASM, RID_TYPEOF, RID_ALIGNOF, RID_ATTRIBUTE, RID_VA_ARG,
RID_EXTENSION, RID_IMAGPART, RID_REALPART, RID_LABEL, RID_CHOOSE_EXPR,
RID_TYPES_COMPATIBLE_P,
+ RID_DFLOAT32, RID_DFLOAT64, RID_DFLOAT128,
+ RID_FRACT, RID_ACCUM,
+
+ /* This means to warn that this is a C++ keyword, and then treat it
+ as a normal identifier. */
+ RID_CXX_COMPAT_WARN,
/* Too many ways of getting the name of a function as a string */
RID_FUNCTION_NAME, RID_PRETTY_FUNCTION_NAME, RID_C99_FUNCTION_NAME,
RID_PUBLIC, RID_PRIVATE, RID_PROTECTED,
RID_TEMPLATE, RID_NULL, RID_CATCH,
RID_DELETE, RID_FALSE, RID_NAMESPACE,
- RID_NEW, RID_OFFSETOF, RID_OPERATOR,
- RID_THIS, RID_THROW, RID_TRUE,
- RID_TRY, RID_TYPENAME, RID_TYPEID,
- RID_USING,
+ RID_NEW, RID_OFFSETOF, RID_OPERATOR,
+ RID_THIS, RID_THROW, RID_TRUE,
+ RID_TRY, RID_TYPENAME, RID_TYPEID,
+ RID_USING, RID_CHAR16, RID_CHAR32,
/* casts */
RID_CONSTCAST, RID_DYNCAST, RID_REINTCAST, RID_STATCAST,
+ /* C++ extensions */
+ RID_HAS_NOTHROW_ASSIGN, RID_HAS_NOTHROW_CONSTRUCTOR,
+ RID_HAS_NOTHROW_COPY, RID_HAS_TRIVIAL_ASSIGN,
+ RID_HAS_TRIVIAL_CONSTRUCTOR, RID_HAS_TRIVIAL_COPY,
+ RID_HAS_TRIVIAL_DESTRUCTOR, RID_HAS_VIRTUAL_DESTRUCTOR,
+ RID_IS_ABSTRACT, RID_IS_BASE_OF,
+ RID_IS_CONVERTIBLE_TO, RID_IS_CLASS,
+ RID_IS_EMPTY, RID_IS_ENUM,
+ RID_IS_POD, RID_IS_POLYMORPHIC,
+ RID_IS_UNION,
+
+ /* C++0x */
+ RID_STATIC_ASSERT, RID_DECLTYPE,
+
/* Objective-C */
RID_AT_ENCODE, RID_AT_END,
RID_AT_CLASS, RID_AT_ALIAS, RID_AT_DEFS,
RID_AT_PRIVATE, RID_AT_PROTECTED, RID_AT_PUBLIC,
- RID_AT_PROTOCOL, RID_AT_SELECTOR,
+ RID_AT_PROTOCOL, RID_AT_SELECTOR,
RID_AT_THROW, RID_AT_TRY, RID_AT_CATCH,
RID_AT_FINALLY, RID_AT_SYNCHRONIZED,
RID_AT_INTERFACE,
RID_FIRST_MODIFIER = RID_STATIC,
RID_LAST_MODIFIER = RID_ONEWAY,
+ RID_FIRST_CXX0X = RID_STATIC_ASSERT,
+ RID_LAST_CXX0X = RID_DECLTYPE,
RID_FIRST_AT = RID_AT_ENCODE,
RID_LAST_AT = RID_AT_IMPLEMENTATION,
RID_FIRST_PQ = RID_IN,
enum c_tree_index
{
+ CTI_CHAR16_TYPE,
+ CTI_CHAR32_TYPE,
CTI_WCHAR_TYPE,
CTI_SIGNED_WCHAR_TYPE,
CTI_UNSIGNED_WCHAR_TYPE,
CTI_WIDEST_UINT_LIT_TYPE,
CTI_CHAR_ARRAY_TYPE,
+ CTI_CHAR16_ARRAY_TYPE,
+ CTI_CHAR32_ARRAY_TYPE,
CTI_WCHAR_ARRAY_TYPE,
CTI_INT_ARRAY_TYPE,
CTI_STRING_TYPE,
CTI_PRETTY_FUNCTION_NAME_DECL,
CTI_C99_FUNCTION_NAME_DECL,
CTI_SAVED_FUNCTION_NAME_DECLS,
-
+
CTI_VOID_ZERO,
CTI_NULL,
CTI_MAX
};
-#define C_RID_CODE(id) (((struct c_common_identifier *) (id))->node.rid_code)
+#define C_CPP_HASHNODE(id) \
+ (&(((struct c_common_identifier *) (id))->node))
+#define C_RID_CODE(id) \
+ ((enum rid) (((struct c_common_identifier *) (id))->node.rid_code))
+#define C_SET_RID_CODE(id, code) \
+ (((struct c_common_identifier *) (id))->node.rid_code = (unsigned char) code)
/* Identifier part common to the C front ends. Inherits from
tree_identifier, despite appearances. */
struct cpp_hashnode node;
};
+/* An entry in the reserved keyword table. */
+
+struct c_common_resword
+{
+ const char *const word;
+ ENUM_BITFIELD(rid) const rid : 16;
+ const unsigned int disable : 16;
+};
+
+/* Disable mask. Keywords are disabled if (reswords[i].disable &
+ mask) is _true_. Thus for keywords which are present in all
+ languages the disable field is zero. */
+
+#define D_CONLY 0x001 /* C only (not in C++). */
+#define D_CXXONLY 0x002 /* C++ only (not in C). */
+#define D_C99 0x004 /* In C, C99 only. */
+#define D_CXX0X 0x008 /* In C++, C++0X only. */
+#define D_EXT 0x010 /* GCC extension. */
+#define D_EXT89 0x020 /* GCC extension incorporated in C99. */
+#define D_ASM 0x040 /* Disabled by -fno-asm. */
+#define D_OBJC 0x080 /* In Objective C and neither C nor C++. */
+#define D_CXX_OBJC 0x100 /* In Objective C, and C++, but not C. */
+#define D_CXXWARN 0x200 /* In C warn with -Wcxx-compat. */
+
+/* The reserved keyword table. */
+extern const struct c_common_resword c_common_reswords[];
+
+/* The number of items in the reserved keyword table. */
+extern const unsigned int num_c_common_reswords;
+
+#define char16_type_node c_global_trees[CTI_CHAR16_TYPE]
+#define char32_type_node c_global_trees[CTI_CHAR32_TYPE]
#define wchar_type_node c_global_trees[CTI_WCHAR_TYPE]
#define signed_wchar_type_node c_global_trees[CTI_SIGNED_WCHAR_TYPE]
#define unsigned_wchar_type_node c_global_trees[CTI_UNSIGNED_WCHAR_TYPE]
#define truthvalue_false_node c_global_trees[CTI_TRUTHVALUE_FALSE]
#define char_array_type_node c_global_trees[CTI_CHAR_ARRAY_TYPE]
+#define char16_array_type_node c_global_trees[CTI_CHAR16_ARRAY_TYPE]
+#define char32_array_type_node c_global_trees[CTI_CHAR32_ARRAY_TYPE]
#define wchar_array_type_node c_global_trees[CTI_WCHAR_ARRAY_TYPE]
#define int_array_type_node c_global_trees[CTI_INT_ARRAY_TYPE]
#define string_type_node c_global_trees[CTI_STRING_TYPE]
/* Language-specific hooks. */
-/* Callback that determines if it's ok for a function to have no
- noreturn attribute. */
-extern int (*lang_missing_noreturn_ok_p) (tree);
-
/* If non-NULL, this function is called after a precompile header file
is loaded. */
extern void (*lang_post_pch_load) (void);
extern void push_file_scope (void);
extern void pop_file_scope (void);
-extern int yyparse (void);
extern stmt_tree current_stmt_tree (void);
extern tree push_stmt_list (void);
extern tree pop_stmt_list (tree);
extern tree add_stmt (tree);
extern void push_cleanup (tree, tree, bool);
+extern tree pushdecl_top_level (tree);
+extern tree pushdecl (tree);
+extern tree build_modify_expr (location_t, tree, enum tree_code, tree);
+extern tree build_indirect_ref (location_t, tree, const char *);
extern int c_expand_decl (tree);
extern int field_decl_cmp (const void *, const void *);
-extern void resort_sorted_fields (void *, void *, gt_pointer_operator,
- void *);
-extern bool has_c_linkage (tree decl);
+extern void resort_sorted_fields (void *, void *, gt_pointer_operator,
+ void *);
+extern bool has_c_linkage (const_tree decl);
\f
/* Switches common to the C front ends. */
extern char flag_no_output;
-/* Nonzero means dump macros in some fashion; contains the 'D', 'M' or
- 'N' of the command line switch. */
+/* Nonzero means dump macros in some fashion; contains the 'D', 'M',
+ 'N' or 'U' of the command line switch. */
extern char flag_dump_macros;
extern int flag_short_wchar;
+/* Nonzero means allow implicit conversions between vectors with
+ differing numbers of subparts and/or differing element types. */
+extern int flag_lax_vector_conversions;
+
/* Nonzero means allow Microsoft extensions without warnings or errors. */
extern int flag_ms_extensions;
extern int flag_signed_bitfields;
-/* Nonzero means warn about deprecated conversion from string constant to
- `char *'. */
-
-extern int warn_write_strings;
-
-/* Warn about #pragma directives that are not recognized. */
+/* Warn about #pragma directives that are not recognized. */
-extern int warn_unknown_pragmas; /* Tri state variable. */
+extern int warn_unknown_pragmas; /* Tri state variable. */
/* Warn about format/argument anomalies in calls to formatted I/O functions
(*printf, *scanf, strftime, strfmon, etc.). */
extern int flag_hosted;
-/* Warn if main is suspicious. */
-
-extern int warn_main;
-
-
/* ObjC language option variables. */
extern int flag_gen_declaration;
-/* Generate code for GNU or NeXT runtime environment. */
-
-extern int flag_next_runtime;
-
/* Tells the compiler that this is a special run. Do not perform any
compiling, instead we are to test some platform dependent features
and output a C header file with appropriate definitions. */
extern int flag_check_new;
+/* The supported C++ dialects. */
+
+enum cxx_dialect {
+ /* C++98 */
+ cxx98,
+ /* Experimental features that are likely to become part of
+ C++0x. */
+ cxx0x
+};
+
+/* The C++ dialect being used. C++98 is the default. */
+extern enum cxx_dialect cxx_dialect;
+
/* Nonzero if we want the new ISO rules for pushing a new scope for `for'
initialization variables.
0: Old rules, set by -fno-for-scope.
extern int flag_use_cxa_atexit;
-/* Nonzero means make the default pedwarns warnings instead of errors.
- The value of this flag is ignored if -pedantic is specified. */
+/* Nonzero to use __cxa_get_exception_ptr in the C++ exception-handling
+ logic. */
-extern int flag_permissive;
+extern int flag_use_cxa_get_exception_ptr;
/* Nonzero means to implement standard semantics for exception
specifications, calling unexpected if an exception is thrown that
extern void start_fname_decls (void);
extern void finish_fname_decls (void);
extern const char *fname_as_string (int);
-extern tree fname_decl (unsigned, tree);
+extern tree fname_decl (location_t, unsigned, tree);
-extern void check_function_arguments (tree, tree);
+extern void check_function_arguments (tree, int, tree *, tree);
extern void check_function_arguments_recurse (void (*)
(void *, tree,
unsigned HOST_WIDE_INT),
void *, tree,
unsigned HOST_WIDE_INT);
-extern void check_function_format (tree, tree);
+extern bool check_builtin_function_arguments (tree, int, tree *);
+extern void check_function_format (tree, int, tree *);
extern void set_Wformat (int);
extern tree handle_format_attribute (tree *, tree, tree, int, bool *);
extern tree handle_format_arg_attribute (tree *, tree, tree, int, bool *);
extern bool c_common_missing_argument (const char *opt, size_t code);
extern tree c_common_type_for_mode (enum machine_mode, int);
extern tree c_common_type_for_size (unsigned int, int);
+extern tree c_common_fixed_point_type_for_size (unsigned int, unsigned int,
+ int, int);
extern tree c_common_unsigned_type (tree);
extern tree c_common_signed_type (tree);
extern tree c_common_signed_or_unsigned_type (int, tree);
-extern tree c_common_truthvalue_conversion (tree);
+extern tree c_build_bitfield_integer_type (unsigned HOST_WIDE_INT, int);
+extern bool decl_with_nonnull_addr_p (const_tree);
+extern tree c_common_truthvalue_conversion (location_t, tree);
extern void c_apply_type_quals_to_decl (int, tree);
extern tree c_sizeof_or_alignof_type (tree, bool, int);
extern tree c_alignof_expr (tree);
/* Print an error message for invalid operands to arith operation CODE.
NOP_EXPR is used as a special case (see truthvalue_conversion). */
-extern void binary_op_error (enum tree_code);
+extern void binary_op_error (location_t, enum tree_code, tree, tree);
extern tree fix_string_type (tree);
struct varray_head_tag;
extern void constant_expression_warning (tree);
+extern void constant_expression_error (tree);
+extern bool strict_aliasing_warning (tree, tree, tree);
+extern void warnings_for_convert_and_check (tree, tree, tree);
extern tree convert_and_check (tree, tree);
extern void overflow_warning (tree);
-extern void unsigned_conversion_warning (tree, tree);
+extern void warn_logical_operator (enum tree_code, tree, tree);
+extern void check_main_parameter_types (tree decl);
extern bool c_determine_visibility (tree);
+extern bool same_scalar_type_ignoring_signedness (tree, tree);
#define c_sizeof(T) c_sizeof_or_alignof_type (T, true, 1)
#define c_alignof(T) c_sizeof_or_alignof_type (T, false, 1)
+/* Subroutine of build_binary_op, used for certain operations. */
+extern tree shorten_binary_op (tree result_type, tree op0, tree op1, bool bitwise);
+
/* Subroutine of build_binary_op, used for comparison operations.
See if the operands have both been converted from subword integer types
and, if so, perhaps change them both back to their original type. */
extern tree shorten_compare (tree *, tree *, tree *, enum tree_code *);
extern tree pointer_int_sum (enum tree_code, tree, tree);
-extern unsigned int min_precision (tree, int);
/* Add qualifiers to a type, in the fashion for C. */
extern tree c_build_qualified_type (tree, int);
extern void disable_builtin_function (const char *);
+extern void set_compound_literal_name (tree decl);
+
extern tree build_va_arg (tree, tree);
extern unsigned int c_common_init_options (unsigned int, const char **);
extern bool c_common_init (void);
extern void c_common_finish (void);
extern void c_common_parse_file (int);
-extern HOST_WIDE_INT c_common_get_alias_set (tree);
+extern alias_set_type c_common_get_alias_set (tree);
extern void c_register_builtin_type (tree, const char*);
-extern bool c_promoting_integer_type_p (tree);
-extern int self_promoting_args_p (tree);
-extern tree strip_array_types (tree);
+extern bool c_promoting_integer_type_p (const_tree);
+extern int self_promoting_args_p (const_tree);
extern tree strip_pointer_operator (tree);
+extern tree strip_pointer_or_array_types (tree);
extern HOST_WIDE_INT c_common_to_target_charset (HOST_WIDE_INT);
/* This is the basic parsing function. */
/* These macros provide convenient access to the various _STMT nodes. */
-/* Nonzero if this statement should be considered a full-expression,
- i.e., if temporaries created during this statement should have
- their destructors run at the end of this statement. (In C, this
- will always be false, since there are no destructors.) */
-#define STMT_IS_FULL_EXPR_P(NODE) TREE_LANG_FLAG_1 ((NODE))
-
/* Nonzero if a given STATEMENT_LIST represents the outermost binding
if a statement expression. */
#define STATEMENT_LIST_STMT_EXPR(NODE) \
#define COMPOUND_LITERAL_EXPR_DECL(NODE) \
DECL_EXPR_DECL (COMPOUND_LITERAL_EXPR_DECL_STMT (NODE))
-#define DEFTREECODE(SYM, NAME, TYPE, LENGTH) SYM,
-
-enum c_tree_code {
- C_DUMMY_TREE_CODE = LAST_AND_UNUSED_TREE_CODE,
-#include "c-common.def"
- LAST_C_TREE_CODE
-};
-
-#undef DEFTREECODE
-
-extern int stmts_are_full_exprs_p (void);
-extern int anon_aggr_type_p (tree);
-
-/* For a VAR_DECL that is an anonymous union, these are the various
- sub-variables that make up the anonymous union. */
-#define DECL_ANON_UNION_ELEMS(NODE) DECL_ARGUMENTS ((NODE))
-
/* In a FIELD_DECL, nonzero if the decl was originally a bitfield. */
#define DECL_C_BIT_FIELD(NODE) \
(DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) == 1)
/* These functions must be defined by each front-end which implements
a variant of the C language. They are used in c-common.c. */
-extern tree build_unary_op (enum tree_code, tree, int);
-extern tree build_binary_op (enum tree_code, tree, tree, int);
+extern tree build_unary_op (location_t, enum tree_code, tree, int);
+extern tree build_binary_op (location_t, enum tree_code, tree, tree, int);
extern tree perform_integral_promotions (tree);
+/* These functions must be defined by each front-end which implements
+ a variant of the C language. They are used by port files. */
+
+extern tree default_conversion (tree);
+
/* Given two integer or real types, return the type for their sum.
Given two compatible ANSI C types, returns the merged type. */
extern tree resolve_overloaded_builtin (tree, tree);
-extern tree finish_label_address_expr (tree);
+extern tree finish_label_address_expr (tree, location_t);
/* Same function prototype, but the C and C++ front ends have
different implementations. Used in c-common.c. */
extern tree lookup_label (tree);
+extern tree lookup_name (tree);
-extern int vector_types_convertible_p (tree t1, tree t2);
+extern bool vector_targets_convertible_p (const_tree t1, const_tree t2);
+extern bool vector_types_convertible_p (const_tree t1, const_tree t2, bool emit_lax_note);
extern rtx c_expand_expr (tree, rtx, enum machine_mode, int, rtx *);
extern void init_c_lex (void);
extern void c_cpp_builtins (cpp_reader *);
+extern void c_cpp_builtins_optimize_pragma (cpp_reader *, tree, tree);
/* Positive if an implicit `extern "C"' scope has just been entered;
negative if such a scope has just been exited. */
extern bool c_dump_tree (void *, tree);
-extern void c_warn_unused_result (tree *);
+extern void c_warn_unused_result (gimple_seq);
extern void verify_sequence_points (tree);
-extern tree fold_offsetof (tree);
+extern tree fold_offsetof (tree, tree);
/* Places where an lvalue, or modifiable lvalue, may be required.
Used to select diagnostic messages in lvalue_error and
extern tree builtin_type_for_size (int, bool);
+extern void warn_array_subscript_with_type_char (tree);
+extern void warn_about_parentheses (enum tree_code,
+ enum tree_code, tree,
+ enum tree_code, tree);
+extern void warn_for_unused_label (tree label);
+extern void warn_for_div_by_zero (location_t, tree divisor);
+extern void warn_for_sign_compare (location_t,
+ tree orig_op0, tree orig_op1,
+ tree op0, tree op1,
+ tree result_type,
+ enum tree_code resultcode);
+
/* In c-gimplify.c */
extern void c_genericize (tree);
-extern int c_gimplify_expr (tree *, tree *, tree *);
+extern int c_gimplify_expr (tree *, gimple_seq *, gimple_seq *);
extern tree c_build_bind_expr (tree, tree);
/* In c-pch.c */
const char *orig);
extern void c_common_write_pch (void);
extern void c_common_no_more_pch (void);
-extern void c_common_pch_pragma (cpp_reader *pfile);
+extern void c_common_pch_pragma (cpp_reader *pfile, const char *);
+extern void c_common_print_pch_checksum (FILE *f);
+
+/* In *-checksum.c */
+extern const unsigned char executable_checksum[16];
+/* In c-cppbuiltin.c */
+extern void builtin_define_std (const char *macro);
extern void builtin_define_with_value (const char *, const char *, int);
extern void c_stddef_cpp_builtins (void);
extern void fe_file_change (const struct line_map *);
extern tree objc_is_object_ptr (tree);
extern void objc_check_decl (tree);
extern int objc_is_reserved_word (tree);
-extern int objc_comptypes (tree, tree, int);
+extern bool objc_compare_types (tree, tree, int, tree);
+extern void objc_volatilize_decl (tree);
+extern bool objc_type_quals_match (tree, tree);
extern tree objc_rewrite_function_call (tree, tree);
extern tree objc_message_selector (void);
extern tree objc_lookup_ivar (tree, tree);
extern void preprocess_file (cpp_reader *);
extern void pp_file_change (const struct line_map *);
extern void pp_dir_change (cpp_reader *, const char *);
+extern bool check_missing_format_attribute (tree, tree);
+
+/* In c-omp.c */
+extern tree c_finish_omp_master (tree);
+extern tree c_finish_omp_critical (tree, tree);
+extern tree c_finish_omp_ordered (tree);
+extern void c_finish_omp_barrier (void);
+extern tree c_finish_omp_atomic (enum tree_code, tree, tree);
+extern void c_finish_omp_flush (void);
+extern void c_finish_omp_taskwait (void);
+extern tree c_finish_omp_for (location_t, tree, tree, tree, tree, tree, tree);
+extern void c_split_parallel_clauses (tree, tree *, tree *);
+extern enum omp_clause_default_kind c_omp_predetermined_sharing (tree);
+
+/* Not in c-omp.c; provided by the front end. */
+extern bool c_omp_sharing_predetermined (tree);
+extern tree c_omp_remap_decl (tree, bool);
+
+/* In order for the format checking to accept the C frontend
+ diagnostic framework extensions, you must include this file before
+ toplev.h, not after. The C front end formats are a subset of those
+ for C++, so they are the appropriate set to use in common code;
+ cp-tree.h overrides this for C++. */
+#ifndef GCC_DIAG_STYLE
+#define GCC_DIAG_STYLE __gcc_cdiag__
+#endif
#endif /* ! GCC_C_COMMON_H */
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