diff options
Diffstat (limited to 'contrib/gcc/c-common.h')
| -rw-r--r-- | contrib/gcc/c-common.h | 582 |
1 files changed, 328 insertions, 254 deletions
diff --git a/contrib/gcc/c-common.h b/contrib/gcc/c-common.h index 1f59ebd..7849730 100644 --- a/contrib/gcc/c-common.h +++ b/contrib/gcc/c-common.h @@ -1,6 +1,6 @@ /* Definitions for c-common.c. Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998, - 1999, 2000, 2001, 2002 Free Software Foundation, Inc. + 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc. This file is part of GCC. @@ -24,6 +24,7 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA #include "splay-tree.h" #include "cpplib.h" +#include "ggc.h" /* Usage of TREE_LANG_FLAG_?: 0: COMPOUND_STMT_NO_SCOPE (in COMPOUND_STMT). @@ -39,6 +40,7 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA 2: STMT_LINENO_FOR_FN_P (in _STMT) 3: SCOPE_NO_CLEANUPS_P (in SCOPE_STMT) COMPOUND_STMT_BODY_BLOCK (in COMPOUND_STMT) + STMT_EXPR_WARN_UNUSED_RESULT (in STMT_EXPR) 4: SCOPE_PARTIAL_P (in SCOPE_STMT) */ @@ -58,7 +60,7 @@ enum rid RID_VOLATILE, RID_SIGNED, RID_AUTO, RID_RESTRICT, /* C extensions */ - RID_BOUNDED, RID_UNBOUNDED, RID_COMPLEX, RID_THREAD, + RID_COMPLEX, RID_THREAD, /* C++ */ RID_FRIEND, RID_VIRTUAL, RID_EXPLICIT, RID_EXPORT, RID_MUTABLE, @@ -86,9 +88,10 @@ enum rid RID_PUBLIC, RID_PRIVATE, RID_PROTECTED, RID_TEMPLATE, RID_NULL, RID_CATCH, RID_DELETE, RID_FALSE, RID_NAMESPACE, - RID_NEW, 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, /* casts */ RID_CONSTCAST, RID_DYNCAST, RID_REINTCAST, RID_STATCAST, @@ -97,7 +100,10 @@ enum rid RID_ID, 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_INTERFACE, + 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_AT_IMPLEMENTATION, RID_MAX, @@ -121,7 +127,7 @@ enum rid /* The elements of `ridpointers' are identifier nodes for the reserved type names and storage classes. It is indexed by a RID_... value. */ -extern tree *ridpointers; +extern GTY ((length ("(int)RID_MAX"))) tree *ridpointers; /* Standard named or nameless data types of the C compiler. */ @@ -145,13 +151,10 @@ enum c_tree_index CTI_CONST_STRING_TYPE, /* Type for boolean expressions (bool in C++, int in C). */ - CTI_BOOLEAN_TYPE, - CTI_BOOLEAN_TRUE, - CTI_BOOLEAN_FALSE, - /* C99's _Bool type. */ - CTI_C_BOOL_TYPE, - CTI_C_BOOL_TRUE, - CTI_C_BOOL_FALSE, + CTI_TRUTHVALUE_TYPE, + CTI_TRUTHVALUE_TRUE, + CTI_TRUTHVALUE_FALSE, + CTI_DEFAULT_FUNCTION_TYPE, CTI_G77_INTEGER_TYPE, @@ -177,7 +180,7 @@ enum c_tree_index struct c_common_identifier GTY(()) { struct tree_common common; - struct cpp_hashnode GTY ((skip (""))) node; + struct cpp_hashnode node; }; #define wchar_type_node c_global_trees[CTI_WCHAR_TYPE] @@ -191,13 +194,9 @@ struct c_common_identifier GTY(()) #define widest_integer_literal_type_node c_global_trees[CTI_WIDEST_INT_LIT_TYPE] #define widest_unsigned_literal_type_node c_global_trees[CTI_WIDEST_UINT_LIT_TYPE] -#define boolean_type_node c_global_trees[CTI_BOOLEAN_TYPE] -#define boolean_true_node c_global_trees[CTI_BOOLEAN_TRUE] -#define boolean_false_node c_global_trees[CTI_BOOLEAN_FALSE] - -#define c_bool_type_node c_global_trees[CTI_C_BOOL_TYPE] -#define c_bool_true_node c_global_trees[CTI_C_BOOL_TRUE] -#define c_bool_false_node c_global_trees[CTI_C_BOOL_FALSE] +#define truthvalue_type_node c_global_trees[CTI_TRUTHVALUE_TYPE] +#define truthvalue_true_node c_global_trees[CTI_TRUTHVALUE_TRUE] +#define truthvalue_false_node c_global_trees[CTI_TRUTHVALUE_FALSE] #define char_array_type_node c_global_trees[CTI_CHAR_ARRAY_TYPE] #define wchar_array_type_node c_global_trees[CTI_WCHAR_ARRAY_TYPE] @@ -223,6 +222,14 @@ struct c_common_identifier GTY(()) extern GTY(()) tree c_global_trees[CTI_MAX]; +/* In a RECORD_TYPE, a sorted array of the fields of the type, not a + tree for size reasons. */ +struct sorted_fields_type GTY(()) +{ + int len; + tree GTY((length ("%h.len"))) elts[1]; +}; + /* Mark which labels are explicitly declared. These may be shadowed, and may be referenced from nested functions. */ #define C_DECLARED_LABEL_FLAG(label) TREE_LANG_FLAG_1 (label) @@ -233,11 +240,20 @@ extern GTY(()) tree c_global_trees[CTI_MAX]; typedef enum c_language_kind { - clk_c = 0, /* A dialect of C: K&R C, ANSI/ISO C89, C2000, etc. */ - clk_cplusplus /* ANSI/ISO C++ */ + clk_c = 0, /* C90, C94 or C99 */ + clk_objc = 1, /* clk_c with ObjC features. */ + clk_cxx = 2, /* ANSI/ISO C++ */ + clk_objcxx = 3 /* clk_cxx with ObjC features. */ } c_language_kind; +/* To test for a specific language use c_language, defined by each + front end. For "ObjC features" or "not C++" use the macros. */ +extern c_language_kind c_language; + +#define c_dialect_cxx() (c_language & clk_cxx) +#define c_dialect_objc() (c_language & clk_objc) + /* Information about a statement tree. */ struct stmt_tree_s GTY(()) { @@ -305,75 +321,90 @@ struct c_language_function GTY(()) { /* Language-specific hooks. */ -extern int (*lang_statement_code_p) PARAMS ((enum tree_code)); -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)); +extern void (*lang_expand_stmt) (tree); +extern void (*lang_expand_decl_stmt) (tree); +extern void (*lang_expand_function_end) (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 begin_stmt_tree PARAMS ((tree *)); -extern tree add_stmt PARAMS ((tree)); -extern void add_decl_stmt PARAMS ((tree)); -extern tree add_scope_stmt PARAMS ((int, int)); -extern void finish_stmt_tree PARAMS ((tree *)); - -extern int statement_code_p PARAMS ((enum tree_code)); -extern tree walk_stmt_tree PARAMS ((tree *, - walk_tree_fn, - void *)); -extern void prep_stmt PARAMS ((tree)); -extern void expand_stmt PARAMS ((tree)); -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 - structure for FUNCTION_DECLs; all other DECLs have a NULL - DECL_LANG_SPECIFIC field. */ - -struct c_lang_decl GTY(()) { - unsigned declared_inline : 1; -}; +extern int (*lang_missing_noreturn_ok_p) (tree); + +extern int yyparse (void); +extern stmt_tree current_stmt_tree (void); +extern tree *current_scope_stmt_stack (void); +extern void begin_stmt_tree (tree *); +extern tree add_stmt (tree); +extern void add_decl_stmt (tree); +extern tree add_scope_stmt (int, int); +extern void finish_stmt_tree (tree *); + +extern tree walk_stmt_tree (tree *, walk_tree_fn, void *); +extern void prep_stmt (tree); +extern void expand_stmt (tree); +extern tree c_begin_if_stmt (void); +extern tree c_begin_while_stmt (void); +extern void c_finish_while_stmt_cond (tree, tree); + +extern int field_decl_cmp (const void *, const void *); +extern void resort_sorted_fields (void *, void *, gt_pointer_operator, + void *); + +/* Switches common to the C front ends. */ -/* In a FUNCTION_DECL for which DECL_BUILT_IN does not hold, this is - the approximate number of statements in this function. There is - no need for this number to be exact; it is only used in various - heuristics regarding optimization. */ -#define DECL_NUM_STMTS(NODE) \ - (FUNCTION_DECL_CHECK (NODE)->decl.u1.i) +/* Nonzero if prepreprocessing only. */ -/* The variant of the C language being processed. Each C language - front-end defines this variable. */ +extern int flag_preprocess_only; -extern c_language_kind c_language; +/* Zero means that faster, ...NonNil variants of objc_msgSend... + calls will be used in ObjC; passing nil receivers to such calls + will most likely result in crashes. */ +extern int flag_nil_receivers; -/* Switches common to the C front ends. */ +/* Nonzero means that we will allow new ObjC exception syntax (@throw, + @try, etc.) in source code. */ +extern int flag_objc_exceptions; -/* Nonzero if prepreprocessing only. */ -extern int flag_preprocess_only; +/* Nonzero means that code generation will be altered to support + "zero-link" execution. This currently affects ObjC only, but may + affect other languages in the future. */ +extern int flag_zero_link; + +/* Nonzero means emit an '__OBJC, __image_info' for the current translation + unit. It will inform the ObjC runtime that class definition(s) herein + contained are to replace one(s) previously loaded. */ +extern int flag_replace_objc_classes; + +/* Nonzero means don't output line number information. */ + +extern char flag_no_line_commands; + +/* Nonzero causes -E output not to be done, but directives such as + #define that have side effects are still obeyed. */ + +extern char flag_no_output; + +/* Nonzero means dump macros in some fashion; contains the 'D', 'M' or + 'N' of the command line switch. */ + +extern char flag_dump_macros; + +/* Nonzero means pass #include lines through to the output. */ + +extern char flag_dump_includes; + +/* The file name to which we should write a precompiled header, or + NULL if no header will be written in this compile. */ + +extern const char *pch_file; /* Nonzero if an ISO standard was selected. It rejects macros in the user's namespace. */ -extern int flag_iso; -/* Nonzero whenever Objective-C functionality is being used. */ -extern int flag_objc; +extern int flag_iso; /* Nonzero if -undef was given. It suppresses target built-in macros and assertions. */ + extern int flag_undef; /* Nonzero means don't recognize the non-ANSI builtin functions. */ @@ -405,10 +436,6 @@ extern int flag_no_asm; extern int flag_const_strings; -/* Nonzero means `$' can be in an identifier. */ - -extern int dollars_in_ident; - /* Nonzero means to treat bitfields as signed unless they say `unsigned'. */ extern int flag_signed_bitfields; @@ -523,15 +550,10 @@ extern int flag_isoc94; extern int flag_isoc99; -/* Nonzero means that we have builtin functions, and main is an int */ +/* Nonzero means that we have builtin functions, and main is an int. */ extern int flag_hosted; -/* Nonzero means add default format_arg attributes for functions not - in ISO C. */ - -extern int flag_noniso_default_format_attributes; - /* Nonzero means warn when casting a function call to a type that does not match the return type (e.g. (float)sqrt() or (anything*)malloc() when there is no previous declaration of sqrt or malloc. */ @@ -542,6 +564,10 @@ extern int warn_bad_function_cast; extern int warn_traditional; +/* Nonzero means warn for a declaration found after a statement. */ + +extern int warn_declaration_after_statement; + /* Nonzero means warn for non-prototype function decls or non-prototyped defs without previous prototype. */ @@ -568,6 +594,12 @@ extern int warn_main; extern int warn_sequence_point; +/* Nonzero means warn about uninitialized variable when it is initialized with itself. + For example: int i = i;, GCC will not warn about this when warn_init_self is nonzero. */ + +extern int warn_init_self; + + /* Nonzero means to warn about compile-time division by zero. */ extern int warn_div_by_zero; @@ -580,6 +612,10 @@ extern int warn_implicit_int; extern int warn_nonnull; +/* Warn about old-style parameter declaration. */ + +extern int warn_old_style_definition; + /* ObjC language option variables. */ @@ -635,17 +671,6 @@ extern int flag_no_gnu_keywords; extern int flag_implement_inlines; -/* Nonzero means do emit exported implementations of templates, instead of - multiple static copies in each file that needs a definition. */ - -extern int flag_external_templates; - -/* Nonzero means that the decision to emit or not emit the implementation of a - template depends on where the template is instantiated, rather than where - it is defined. */ - -extern int flag_alt_external_templates; - /* Nonzero means that implicit instantiations will be emitted if needed. */ extern int flag_implicit_templates; @@ -711,15 +736,18 @@ extern int flag_new_for_scope; extern int flag_weak; +/* 0 means we want the preprocessor to not emit line directives for + the current working directory. 1 means we want it to do it. -1 + means we should decide depending on whether debugging information + is being emitted or not. */ + +extern int flag_working_directory; + /* Nonzero to use __cxa_atexit, rather than atexit, to register destructors for local statics and global objects. */ extern int flag_use_cxa_atexit; -/* Nonzero means output .vtable_{entry,inherit} for use in doing vtable gc. */ - -extern int flag_vtable_gc; - /* Nonzero means make the default pedwarns warnings instead of errors. The value of this flag is ignored if -pedantic is specified. */ @@ -732,26 +760,15 @@ extern int flag_permissive; extern int flag_enforce_eh_specs; -/* The version of the C++ ABI in use. The following values are - allowed: - - 0: The version of the ABI believed most conformant with the - C++ ABI specification. This ABI may change as bugs are - discovered and fixed. Therefore, 0 will not necessarily - indicate the same ABI in different versions of G++. - - 1: The version of the ABI first used in G++ 3.2. - - Additional positive integers will be assigned as new versions of - the ABI become the default version of the ABI. */ - -extern int flag_abi_version; - /* Nonzero means warn about things that will change when compiling with an ABI-compliant compiler. */ extern int warn_abi; +/* Nonzero means warn about invalid uses of offsetof. */ + +extern int warn_invalid_offsetof; + /* Nonzero means warn about implicit declarations. */ extern int warn_implicit; @@ -847,66 +864,60 @@ extern const struct attribute_spec c_common_format_attribute_table[]; TYPE_DEP indicates whether it depends on type of the function or not (i.e. __PRETTY_FUNCTION__). */ -extern tree (*make_fname_decl) PARAMS ((tree, int)); - -extern tree identifier_global_value PARAMS ((tree)); -extern void record_builtin_type PARAMS ((enum rid, - const char *, tree)); -extern tree build_void_list_node PARAMS ((void)); -extern void start_fname_decls PARAMS ((void)); -extern void finish_fname_decls PARAMS ((void)); -extern const char *fname_as_string PARAMS ((int)); -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, - int, bool *)); -extern tree handle_format_arg_attribute PARAMS ((tree *, tree, tree, - int, bool *)); -extern void c_common_insert_default_attributes PARAMS ((tree)); -extern int c_common_decode_option PARAMS ((int, char **)); -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_or_alignof_type PARAMS ((tree, enum tree_code, int)); -extern tree c_alignof_expr PARAMS ((tree)); +extern tree (*make_fname_decl) (tree, int); + +extern tree identifier_global_value (tree); +extern void record_builtin_type (enum rid, const char *, tree); +extern tree build_void_list_node (void); +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 void check_function_arguments (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 (int *, tree, 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 int c_common_handle_option (size_t code, const char *arg, int value); +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_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 void c_apply_type_quals_to_decl (int, tree); +extern tree c_sizeof_or_alignof_type (tree, enum tree_code, 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 PARAMS ((enum tree_code)); +extern void binary_op_error (enum tree_code); #define my_friendly_assert(EXP, N) (void) \ (((EXP) == 0) ? (fancy_abort (__FILE__, __LINE__, __FUNCTION__), 0) : 0) -extern tree c_expand_expr_stmt PARAMS ((tree)); -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_expand_end_cond PARAMS ((void)); +extern tree c_expand_expr_stmt (tree); +extern void c_expand_start_cond (tree, int, tree); +extern void c_finish_then (void); +extern void c_expand_start_else (void); +extern void c_finish_else (void); +extern void c_expand_end_cond (void); /* Validate the expression after `case' and apply default promotions. */ -extern tree check_case_value PARAMS ((tree)); -extern tree fix_string_type PARAMS ((tree)); +extern tree check_case_value (tree); +extern tree fix_string_type (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)); -extern void unsigned_conversion_warning PARAMS ((tree, tree)); +extern void constant_expression_warning (tree); +extern tree convert_and_check (tree, tree); +extern void overflow_warning (tree); +extern void unsigned_conversion_warning (tree, tree); /* Read the rest of the current #-directive line. */ -extern char *get_directive_line PARAMS ((void)); +extern char *get_directive_line (void); #define GET_DIRECTIVE_LINE() get_directive_line () #define c_sizeof(T) c_sizeof_or_alignof_type (T, SIZEOF_EXPR, 1) #define c_alignof(T) c_sizeof_or_alignof_type (T, ALIGNOF_EXPR, 1) @@ -914,31 +925,41 @@ extern char *get_directive_line PARAMS ((void)); /* 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 PARAMS ((tree *, tree *, tree *, enum tree_code *)); +extern tree shorten_compare (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)); +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 PARAMS ((tree, int)); +extern tree c_build_qualified_type (tree, int); /* Build tree nodes and builtin functions common to both C and C++ language 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_init_options PARAMS ((enum c_language_kind)); -extern bool 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 strip_array_types PARAMS ((tree)); +extern void c_common_nodes_and_builtins (void); + +extern void disable_builtin_function (const char *); + +extern tree build_va_arg (tree, tree); + +extern unsigned int c_common_init_options (unsigned int, const char **); +extern bool c_common_post_options (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 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 tree strip_pointer_operator (tree); + +/* This function resets the parsers' state in preparation for parsing + a new file. */ +extern void c_reset_state (void); +/* This is the basic parsing function. */ +extern void c_parse_file (void); +/* This is misnamed, it actually performs end-of-compilation processing. */ +extern void finish_file (void); /* These macros provide convenient access to the various _STMT nodes. */ @@ -998,7 +1019,7 @@ extern tree strip_array_types PARAMS ((tree)); /* 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. */ +/* True for goto created artificially 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 @@ -1028,6 +1049,11 @@ extern tree strip_array_types PARAMS ((tree)); #define STMT_EXPR_NO_SCOPE(NODE) \ TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE)) +/* Nonzero if this statement-expression should cause warning if its result + is not used. */ +#define STMT_EXPR_WARN_UNUSED_RESULT(NODE) \ + TREE_LANG_FLAG_3 (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) @@ -1121,28 +1147,48 @@ enum c_tree_code { #undef DEFTREECODE -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_do_stmt PARAMS ((tree)); -extern void genrtl_return_stmt PARAMS ((tree)); -extern void genrtl_for_stmt PARAMS ((tree)); -extern void genrtl_break_stmt PARAMS ((void)); -extern void genrtl_continue_stmt PARAMS ((void)); -extern void genrtl_scope_stmt PARAMS ((tree)); -extern void genrtl_switch_stmt PARAMS ((tree)); -extern void genrtl_case_label PARAMS ((tree)); -extern void genrtl_compound_stmt PARAMS ((tree)); -extern void genrtl_asm_stmt PARAMS ((tree, tree, - tree, tree, - tree, int)); -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 c_common_stmt_codes \ + CLEANUP_STMT, EXPR_STMT, COMPOUND_STMT, \ + DECL_STMT, IF_STMT, FOR_STMT, \ + WHILE_STMT, DO_STMT, RETURN_STMT, \ + BREAK_STMT, CONTINUE_STMT, SCOPE_STMT, \ + SWITCH_STMT, GOTO_STMT, LABEL_STMT, \ + ASM_STMT, FILE_STMT, CASE_LABEL + +/* TRUE if a code represents a statement. The front end init + langhook should take care of initialization of this array. */ +extern bool statement_code_p[MAX_TREE_CODES]; + +#define STATEMENT_CODE_P(CODE) statement_code_p[(int) (CODE)] + +#define INIT_STATEMENT_CODES(STMT_CODES) \ + do { \ + unsigned int i; \ + memset (&statement_code_p, 0, sizeof (statement_code_p)); \ + for (i = 0; i < ARRAY_SIZE (STMT_CODES); i++) \ + statement_code_p[STMT_CODES[i]] = true; \ + } while (0) + +extern void genrtl_do_pushlevel (void); +extern void genrtl_goto_stmt (tree); +extern void genrtl_expr_stmt (tree); +extern void genrtl_expr_stmt_value (tree, int, int); +extern void genrtl_decl_stmt (tree); +extern void genrtl_if_stmt (tree); +extern void genrtl_while_stmt (tree); +extern void genrtl_do_stmt (tree); +extern void genrtl_return_stmt (tree); +extern void genrtl_for_stmt (tree); +extern void genrtl_break_stmt (void); +extern void genrtl_continue_stmt (void); +extern void genrtl_scope_stmt (tree); +extern void genrtl_switch_stmt (tree); +extern void genrtl_case_label (tree); +extern void genrtl_compound_stmt (tree); +extern void genrtl_asm_stmt (tree, tree, tree, tree, tree, int); +extern void genrtl_cleanup_stmt (tree); +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. */ @@ -1160,16 +1206,16 @@ extern int anon_aggr_type_p PARAMS ((tree)); an explicit asm specification. */ #define DECL_C_HARD_REGISTER(DECL) DECL_LANG_FLAG_4 (VAR_DECL_CHECK (DECL)) -extern void emit_local_var PARAMS ((tree)); -extern void make_rtl_for_local_static PARAMS ((tree)); -extern tree expand_cond PARAMS ((tree)); -extern tree c_expand_return PARAMS ((tree)); -extern tree do_case PARAMS ((tree, tree)); -extern tree build_stmt PARAMS ((enum tree_code, ...)); -extern tree build_case_label PARAMS ((tree, tree, tree)); -extern tree build_continue_stmt PARAMS ((void)); -extern tree build_break_stmt PARAMS ((void)); -extern tree build_return_stmt PARAMS ((tree)); +extern void emit_local_var (tree); +extern void make_rtl_for_local_static (tree); +extern tree expand_cond (tree); +extern tree c_expand_return (tree); +extern tree do_case (tree, tree); +extern tree build_stmt (enum tree_code, ...); +extern tree build_case_label (tree, tree, tree); +extern tree build_continue_stmt (void); +extern tree build_break_stmt (void); +extern tree build_return_stmt (tree); #define COMPOUND_STMT_NO_SCOPE(NODE) TREE_LANG_FLAG_0 (NODE) @@ -1177,63 +1223,59 @@ extern tree build_return_stmt PARAMS ((tree)); 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)); +extern void c_expand_asm_operands (tree, tree, tree, tree, int, location_t); /* 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 PARAMS ((enum tree_code, - tree, int)); -extern tree build_binary_op PARAMS ((enum tree_code, - tree, tree, int)); -extern int lvalue_p PARAMS ((tree)); -extern tree default_conversion PARAMS ((tree)); +extern tree build_unary_op (enum tree_code, tree, int); +extern tree build_binary_op (enum tree_code, tree, tree, int); +extern int lvalue_p (tree); +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 common_type PARAMS ((tree, tree)); +extern tree common_type (tree, tree); -extern tree expand_tree_builtin PARAMS ((tree, tree, tree)); +extern tree expand_tree_builtin (tree, tree, tree); -extern tree decl_constant_value PARAMS ((tree)); +extern tree decl_constant_value (tree); /* Handle increment and decrement of boolean types. */ -extern tree boolean_increment PARAMS ((enum tree_code, - tree)); +extern tree boolean_increment (enum tree_code, tree); /* Hook currently used only by the C++ front end to reset internal state after entering or leaving a header file. */ -extern void extract_interface_info PARAMS ((void)); +extern void extract_interface_info (void); -extern int case_compare PARAMS ((splay_tree_key, - splay_tree_key)); +extern int case_compare (splay_tree_key, splay_tree_key); -extern tree c_add_case_label PARAMS ((splay_tree, - tree, tree, - tree)); +extern tree c_add_case_label (splay_tree, tree, tree, tree); -extern tree build_function_call PARAMS ((tree, tree)); +extern tree build_function_call (tree, tree); -extern tree finish_label_address_expr PARAMS ((tree)); +extern tree finish_label_address_expr (tree); /* Same function prototype, but the C and C++ front ends have different implementations. Used in c-common.c. */ -extern tree lookup_label PARAMS ((tree)); +extern tree lookup_label (tree); + +extern rtx c_expand_expr (tree, rtx, enum machine_mode, int, rtx *); -extern rtx c_expand_expr PARAMS ((tree, rtx, - enum machine_mode, - int)); +extern int c_safe_from_p (rtx, tree); -extern int c_safe_from_p PARAMS ((rtx, tree)); +extern int c_staticp (tree); -extern int c_staticp PARAMS ((tree)); +extern int c_common_unsafe_for_reeval (tree); -extern int c_common_unsafe_for_reeval PARAMS ((tree)); +extern void init_c_lex (void); -extern const char *init_c_lex PARAMS ((const char *)); +extern void c_cpp_builtins (cpp_reader *); -extern void cb_register_builtins PARAMS ((cpp_reader *)); +/* Positive if an implicit `extern "C"' scope has just been entered; + negative if such a scope has just been exited. */ +extern int pending_lang_change; /* Information recorded about each file examined during compilation. */ @@ -1244,9 +1286,41 @@ struct c_fileinfo short interface_unknown; }; -struct c_fileinfo *get_fileinfo PARAMS ((const char *)); -extern void dump_time_statistics PARAMS ((void)); - -extern int c_dump_tree PARAMS ((void *, tree)); +struct c_fileinfo *get_fileinfo (const char *); +extern void dump_time_statistics (void); + +extern bool c_dump_tree (void *, tree); + +extern void pch_init (void); +extern int c_common_valid_pch (cpp_reader *pfile, const char *name, int fd); +extern void c_common_read_pch (cpp_reader *pfile, const char *name, int fd, + const char *orig); +extern void c_common_write_pch (void); +extern void c_common_no_more_pch (void); +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 int c_estimate_num_insns (tree decl); +extern bool c_decl_uninit (tree t); +extern void c_parse_error (const char *, enum cpp_ttype, tree); + +/* The following have been moved here from c-tree.h, since they're needed + in the ObjC++ world, too. What is more, stub-objc.c could use a few + prototypes. */ +extern tree lookup_interface (tree); +extern tree is_class_name (tree); +extern tree objc_is_object_ptr (tree); +extern void objc_check_decl (tree); +extern int objc_comptypes (tree, tree, int); +extern tree objc_message_selector (void); +extern tree lookup_objc_ivar (tree); +extern void *get_current_scope (void); +extern void objc_mark_locals_volatile (void *); + +/* In c-ppoutput.c */ +extern void init_pp_output (FILE *); +extern void preprocess_file (cpp_reader *); +extern void pp_file_change (const struct line_map *); +extern void pp_dir_change (cpp_reader *, const char *); #endif /* ! GCC_C_COMMON_H */ |
