/* Definitions for c-common.c.
Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998,
- 1999, 2000, 2001 Free Software Foundation, Inc.
+ 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
This file is part of GCC.
DECL_PRETTY_FUNCTION_P (in VAR_DECL)
NEW_FOR_SCOPE_P (in FOR_STMT)
ASM_INPUT_P (in ASM_STMT)
+ STMT_EXPR_NO_SCOPE (in STMT_EXPR)
1: C_DECLARED_LABEL_FLAG (in LABEL_DECL)
STMT_IS_FULL_EXPR_P (in _STMT)
2: STMT_LINENO_FOR_FN_P (in _STMT)
3: SCOPE_NO_CLEANUPS_P (in SCOPE_STMT)
+ COMPOUND_STMT_BODY_BLOCK (in COMPOUND_STMT)
4: SCOPE_PARTIAL_P (in SCOPE_STMT)
*/
RID_VOLATILE, RID_SIGNED, RID_AUTO, RID_RESTRICT,
/* C extensions */
- RID_BOUNDED, RID_UNBOUNDED, RID_COMPLEX,
+ RID_BOUNDED, RID_UNBOUNDED, RID_COMPLEX, RID_THREAD,
/* C++ */
RID_FRIEND, RID_VIRTUAL, RID_EXPLICIT, RID_EXPORT, RID_MUTABLE,
/* C extensions */
RID_ASM, RID_TYPEOF, RID_ALIGNOF, RID_ATTRIBUTE, RID_VA_ARG,
RID_EXTENSION, RID_IMAGPART, RID_REALPART, RID_LABEL, RID_PTRBASE,
- RID_PTREXTENT, RID_PTRVALUE,
+ RID_PTREXTENT, RID_PTRVALUE, RID_CHOOSE_EXPR, RID_TYPES_COMPATIBLE_P,
/* Too many ways of getting the name of a function as a string */
RID_FUNCTION_NAME, RID_PRETTY_FUNCTION_NAME, RID_C99_FUNCTION_NAME,
These may be shadowed, and may be referenced from nested functions. */
#define C_DECLARED_LABEL_FLAG(label) TREE_LANG_FLAG_1 (label)
+/* Flag strings given by __FUNCTION__ and __PRETTY_FUNCTION__ for a
+ warning if they undergo concatenation. */
+#define C_ARTIFICIAL_STRING_P(NODE) TREE_LANG_FLAG_0 (NODE)
+
typedef enum c_language_kind
{
clk_c, /* A dialect of C: K&R C, ANSI/ISO C89, C2000,
/* The type of the last expression statement. (This information is
needed to implement the statement-expression extension.) */
tree x_last_expr_type;
+ /* The last filename we recorded. */
+ const char *x_last_expr_filename;
/* In C++, Non-zero if we should treat statements as full
expressions. In particular, this variable is no-zero if at the
end of a statement we should destroy any temporaries created
#define last_expr_type (current_stmt_tree ()->x_last_expr_type)
+/* The name of the last file we have seen. */
+
+#define last_expr_filename (current_stmt_tree ()->x_last_expr_filename)
+
/* LAST_TREE contains the last statement parsed. These are chained
together through the TREE_CHAIN field, but often need to be
re-organized since the parse is performed bottom-up. This macro
extern void (*lang_expand_stmt) PARAMS ((tree));
extern void (*lang_expand_decl_stmt) PARAMS ((tree));
extern void (*lang_expand_function_end) PARAMS ((void));
+extern tree gettags PARAMS ((void));
/* Callback that determines if it's ok for a function to have no
noreturn attribute. */
extern int (*lang_missing_noreturn_ok_p) PARAMS ((tree));
+extern int yyparse PARAMS ((void));
+extern void free_parser_stacks PARAMS ((void));
extern stmt_tree current_stmt_tree PARAMS ((void));
extern tree *current_scope_stmt_stack PARAMS ((void));
extern void prep_stmt PARAMS ((tree));
extern void expand_stmt PARAMS ((tree));
extern void mark_stmt_tree PARAMS ((void *));
+extern void shadow_warning PARAMS ((const char *,
+ tree, tree));
+extern tree c_begin_if_stmt PARAMS ((void));
+extern tree c_begin_while_stmt PARAMS ((void));
+extern void c_finish_while_stmt_cond PARAMS ((tree, tree));
+
/* Extra information associated with a DECL. Other C dialects extend
this structure in various ways. The C front-end only uses this
extern c_language_kind c_language;
+/* Nonzero if prepreprocessing only. */
+extern int flag_preprocess_only;
+
+/* Nonzero if an ISO standard was selected. It rejects macros in the
+ user's namespace. */
+extern int flag_iso;
+
+/* Nonzero if -undef was given. It suppresses target built-in macros
+ and assertions. */
+extern int flag_undef;
+
/* Nonzero means give string constants the type `const char *', rather
than `char *'. */
extern int flag_short_wchar;
+/* Nonzero means warn about use of multicharacter literals. */
+extern int warn_multichar;
+
/* Warn about *printf or *scanf format/argument anomalies. */
extern int warn_format;
extern int warn_format_extra_args;
+/* Warn about zero-length formats. */
+
+extern int warn_format_zero_length;
+
/* Warn about non-literal format arguments. */
extern int warn_format_nonliteral;
extern int warn_format_security;
+/* Warn about NULL being passed to argument slots marked as requiring
+ non-NULL. */
+
+extern int warn_nonnull;
+
/* Warn about possible violations of sequence point rules. */
extern int warn_sequence_point;
/* Nonzero means to warn about compile-time division by zero. */
extern int warn_div_by_zero;
-/* Nonzero means do some things the same way PCC does. */
-
-extern int flag_traditional;
-
/* Nonzero means enable C89 Amendment 1 features. */
extern int flag_isoc94;
#define C_TYPE_FUNCTION_P(type) \
(TREE_CODE (type) == FUNCTION_TYPE)
-/* Return the qualifiers that apply to this type. In C++, that means
- descending through array types. Note that this macro evaluates its
- arguments mor than once. */
-#define C_TYPE_QUALS(TYPE) \
- (TYPE_QUALS ((TREE_CODE (TYPE) == ARRAY_TYPE \
- && c_language == clk_cplusplus) \
- ? strip_array_types (TYPE) : TYPE))
-
/* For convenience we define a single macro to identify the class of
object or incomplete types. */
#define C_TYPE_OBJECT_OR_INCOMPLETE_P(type) \
what operator was specified for it. */
#define C_EXP_ORIGINAL_CODE(exp) ((enum tree_code) TREE_COMPLEXITY (exp))
+/* Attribute table common to the C front ends. */
+extern const struct attribute_spec c_common_attribute_table[];
+extern const struct attribute_spec c_common_format_attribute_table[];
+
/* Pointer to function to lazily generate the VAR_DECL for __FUNCTION__ etc.
ID is the identifier to use, NAME is the string.
TYPE_DEP indicates whether it depends on type of the function or not
extern tree fname_decl PARAMS ((unsigned, tree));
extern const char *fname_string PARAMS ((unsigned));
+extern void check_function_arguments PARAMS ((tree, tree));
+extern void check_function_arguments_recurse PARAMS ((void (*) (void *,
+ tree,
+ unsigned HOST_WIDE_INT),
+ void *, tree,
+ unsigned HOST_WIDE_INT));
extern void check_function_format PARAMS ((int *, tree, tree));
extern void set_Wformat PARAMS ((int));
extern tree handle_format_attribute PARAMS ((tree *, tree, tree,
extern tree handle_format_arg_attribute PARAMS ((tree *, tree, tree,
int, bool *));
extern void c_common_insert_default_attributes PARAMS ((tree));
+extern tree c_common_type_for_mode PARAMS ((enum machine_mode,
+ int));
+extern tree c_common_type_for_size PARAMS ((unsigned int, int));
+extern tree c_common_unsigned_type PARAMS ((tree));
+extern tree c_common_signed_type PARAMS ((tree));
+extern tree c_common_signed_or_unsigned_type PARAMS ((int, tree));
+extern tree c_common_truthvalue_conversion PARAMS ((tree));
extern void c_apply_type_quals_to_decl PARAMS ((int, tree));
extern tree c_sizeof PARAMS ((tree));
extern tree c_alignof PARAMS ((tree));
NOP_EXPR is used as a special case (see truthvalue_conversion). */
extern void binary_op_error PARAMS ((enum tree_code));
extern tree c_expand_expr_stmt PARAMS ((tree));
-extern void c_expand_start_cond PARAMS ((tree, int));
+extern void c_expand_start_cond PARAMS ((tree, int, tree));
extern void c_finish_then PARAMS ((void));
extern void c_expand_start_else PARAMS ((void));
-extern void c_finish_else PARAMS ((void));
+extern void c_finish_else PARAMS ((void));
extern void c_expand_end_cond PARAMS ((void));
/* Validate the expression after `case' and apply default promotions. */
extern tree check_case_value PARAMS ((tree));
-/* Concatenate a list of STRING_CST nodes into one STRING_CST. */
-extern tree combine_strings PARAMS ((tree));
+extern tree fix_string_type PARAMS ((tree));
+struct varray_head_tag;
+extern tree combine_strings PARAMS ((struct varray_head_tag *));
extern void constant_expression_warning PARAMS ((tree));
extern tree convert_and_check PARAMS ((tree, tree));
extern void overflow_warning PARAMS ((tree));
and, if so, perhaps change them both back to their original type. */
extern tree shorten_compare PARAMS ((tree *, tree *, tree *, enum tree_code *));
+extern tree pointer_int_sum PARAMS ((enum tree_code, tree, tree));
extern unsigned int min_precision PARAMS ((tree, int));
/* Add qualifiers to a type, in the fashion for C. */
frontends. */
extern void c_common_nodes_and_builtins PARAMS ((void));
+extern void disable_builtin_function PARAMS ((const char *));
+
extern tree build_va_arg PARAMS ((tree, tree));
-extern void c_common_lang_init PARAMS ((void));
+extern void c_common_init_options PARAMS ((enum c_language_kind));
+extern void c_common_post_options PARAMS ((void));
+extern const char *c_common_init PARAMS ((const char *));
+extern void c_common_finish PARAMS ((void));
+extern void c_common_parse_file PARAMS ((int));
extern HOST_WIDE_INT c_common_get_alias_set PARAMS ((tree));
extern bool c_promoting_integer_type_p PARAMS ((tree));
extern int self_promoting_args_p PARAMS ((tree));
-extern tree simple_type_promotes_to PARAMS ((tree));
extern tree strip_array_types PARAMS ((tree));
/* These macros provide convenient access to the various _STMT nodes. */
/* IF_STMT accessors. These give access to the condition of the if
statement, the then block of the if statement, and the else block
- of the if stsatement if it exists. */
+ of the if statement if it exists. */
#define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0)
#define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1)
#define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2)
#define FOR_EXPR(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 2)
#define FOR_BODY(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 3)
-/* SWITCH_STMT accessors. These give access to the condition and body
+/* SWITCH_STMT accessors. These give access to the condition, body and
+ original condition type (before any compiler conversions)
of the switch statement, respectively. */
#define SWITCH_COND(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 0)
#define SWITCH_BODY(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 1)
+#define SWITCH_TYPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 2)
/* CASE_LABEL accessors. These give access to the high and low values
of a case label, respectively. */
/* GOTO_STMT accessor. This gives access to the label associated with
a goto statement. */
#define GOTO_DESTINATION(NODE) TREE_OPERAND (GOTO_STMT_CHECK (NODE), 0)
+/* True for goto created artifically by the compiler. */
+#define GOTO_FAKE_P(NODE) (TREE_LANG_FLAG_0 (GOTO_STMT_CHECK (NODE)))
/* COMPOUND_STMT accessor. This gives access to the TREE_LIST of
- statements assocated with a compound statement. The result is the
- first statement in the list. Succeeding nodes can be acccessed by
+ statements associated with a compound statement. The result is the
+ first statement in the list. Succeeding nodes can be accessed by
calling TREE_CHAIN on a node in the list. */
#define COMPOUND_BODY(NODE) TREE_OPERAND (COMPOUND_STMT_CHECK (NODE), 0)
/* STMT_EXPR accessor. */
#define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0)
+/* Nonzero if this statement-expression does not have an associated scope. */
+#define STMT_EXPR_NO_SCOPE(NODE) \
+ TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE))
+
/* LABEL_STMT accessor. This gives access to the label associated with
the given label statement. */
#define LABEL_STMT_LABEL(NODE) TREE_OPERAND (LABEL_STMT_CHECK (NODE), 0)
+/* COMPOUND_LITERAL_EXPR accessors. */
+#define COMPOUND_LITERAL_EXPR_DECL_STMT(NODE) \
+ TREE_OPERAND (COMPOUND_LITERAL_EXPR_CHECK (NODE), 0)
+#define COMPOUND_LITERAL_EXPR_DECL(NODE) \
+ DECL_STMT_DECL (COMPOUND_LITERAL_EXPR_DECL_STMT (NODE))
+
/* Nonzero if this SCOPE_STMT is for the beginning of a scope. */
#define SCOPE_BEGIN_P(NODE) \
(TREE_LANG_FLAG_0 (SCOPE_STMT_CHECK (NODE)))
#define ASM_VOLATILE_P(NODE) \
(ASM_CV_QUAL (ASM_STMT_CHECK (NODE)) != NULL_TREE)
+/* The VAR_DECL to clean up in a CLEANUP_STMT. */
+#define CLEANUP_DECL(NODE) \
+ TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 0)
+/* The cleanup to run in a CLEANUP_STMT. */
+#define CLEANUP_EXPR(NODE) \
+ TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 1)
+
+/* The filename we are changing to as of this FILE_STMT. */
+#define FILE_STMT_FILENAME_NODE(NODE) \
+ (TREE_OPERAND (FILE_STMT_CHECK (NODE), 0))
+#define FILE_STMT_FILENAME(NODE) \
+ (IDENTIFIER_POINTER (FILE_STMT_FILENAME_NODE (NODE)))
+
/* The line-number at which a statement began. But if
STMT_LINENO_FOR_FN_P does holds, then this macro gives the
line number for the end of the current function instead. */
#undef DEFTREECODE
-extern void add_c_tree_codes PARAMS ((void));
extern void genrtl_do_pushlevel PARAMS ((void));
extern void genrtl_goto_stmt PARAMS ((tree));
extern void genrtl_expr_stmt PARAMS ((tree));
+extern void genrtl_expr_stmt_value PARAMS ((tree, int, int));
extern void genrtl_decl_stmt PARAMS ((tree));
extern void genrtl_if_stmt PARAMS ((tree));
extern void genrtl_while_stmt PARAMS ((tree));
extern void genrtl_asm_stmt PARAMS ((tree, tree,
tree, tree,
tree, int));
-extern void genrtl_decl_cleanup PARAMS ((tree, tree));
+extern void genrtl_decl_cleanup PARAMS ((tree));
extern int stmts_are_full_exprs_p PARAMS ((void));
extern int anon_aggr_type_p PARAMS ((tree));
#define COMPOUND_STMT_NO_SCOPE(NODE) TREE_LANG_FLAG_0 (NODE)
+/* Used by the C++ frontend to mark the block around the member
+ initializers and cleanups. */
+#define COMPOUND_STMT_BODY_BLOCK(NODE) TREE_LANG_FLAG_3 (NODE)
+
extern void c_expand_asm_operands PARAMS ((tree, tree, tree, tree, int, const char *, int));
/* These functions must be defined by each front-end which implements
different implementations. Used in c-common.c. */
extern tree lookup_label PARAMS ((tree));
-/* If this variable is defined to a non-NULL value, it will be called
- after the file has been completely parsed. The argument will be
- the GLOBAL_NAMESPACE in C++, or the list of top-level declarations
- in C. */
-extern void (*back_end_hook) PARAMS ((tree));
-
-#ifdef RTX_CODE
-
-extern struct rtx_def *c_expand_expr PARAMS ((tree, rtx,
+extern rtx c_expand_expr PARAMS ((tree, rtx,
enum machine_mode,
- enum expand_modifier));
+ int));
extern int c_safe_from_p PARAMS ((rtx, tree));
-#endif
-
-extern int c_unsafe_for_reeval PARAMS ((tree));
-
-/* In c-dump.c */
-
-/* Different tree dump places. When you add new tree dump places,
- extend the DUMP_FILES array in c-dump.c */
-enum tree_dump_index
-{
- TDI_all, /* dump the whole translation unit */
- TDI_class, /* dump class heirarchy */
- TDI_original, /* dump each function before optimizing it */
- TDI_optimized, /* dump each function after optimizing it */
- TDI_inlined, /* dump each function after inlining
- within it. */
- TDI_end
-};
-
-/* Bit masks to control tree dumping. Not all values are applicable to
- all tree dumps. Add new ones at the end. When you define new
- values, extend the DUMP_OPTIONS array in c-dump.c */
-#define TDF_ADDRESS (1 << 0) /* dump node addresses */
-#define TDF_SLIM (1 << 1) /* don't go wild following links */
-
-typedef struct dump_info *dump_info_p;
-
-/* A callback function used dump language-specific parts of tree
- nodes. Returns non-zero if it does not want the usual dumping of
- the second argument. */
-typedef int (*dump_tree_fn) PARAMS ((dump_info_p, tree));
+extern int c_staticp PARAMS ((tree));
-extern dump_tree_fn lang_dump_tree;
+extern int c_common_unsafe_for_reeval PARAMS ((tree));
-extern int dump_flag PARAMS ((dump_info_p, int, tree));
-extern int dump_enabled_p PARAMS ((enum tree_dump_index));
-extern FILE *dump_begin PARAMS ((enum tree_dump_index, int *));
-extern void dump_end PARAMS ((enum tree_dump_index, FILE *));
-extern void dump_node PARAMS ((tree, int, FILE *));
-extern int dump_switch_p PARAMS ((const char *));
-extern const char *dump_flag_name PARAMS ((enum tree_dump_index));
+extern const char *init_c_lex PARAMS ((const char *));
/* Information recorded about each file examined during compilation. */
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