X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Fc-common.h;h=99209c71ce39e287daf67a1c03a81ecb0c01c936;hb=620d0bf8f888ef4d2a07330e2c26252d39bdea34;hp=b174f58e44bf0f1ad5c555820dc72f79eee937cf;hpb=fb84380a59197b10914b2258c149aee94b317d67;p=pf3gnuchains%2Fgcc-fork.git diff --git a/gcc/c-common.h b/gcc/c-common.h index b174f58e44b..99209c71ce3 100644 --- a/gcc/c-common.h +++ b/gcc/c-common.h @@ -1,12 +1,12 @@ /* Definitions for c-common.c. Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998, - 1999, 2000, 2001, 2002, 2003 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 @@ -15,31 +15,25 @@ 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 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 +. */ #ifndef GCC_C_COMMON_H #define GCC_C_COMMON_H #include "splay-tree.h" #include "cpplib.h" +#include "ggc.h" /* Usage of TREE_LANG_FLAG_?: - 0: COMPOUND_STMT_NO_SCOPE (in COMPOUND_STMT). - TREE_NEGATED_INT (in INTEGER_CST). + 0: TREE_NEGATED_INT (in INTEGER_CST). IDENTIFIER_MARKED (used by search routines). - SCOPE_BEGIN_P (in SCOPE_STMT) 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) + STATEMENT_LIST_STMT_EXPR (in STATEMENT_LIST) + 2: unused + 3: STATEMENT_LIST_HAS_LABEL (in STATEMENT_LIST) + 4: unused */ /* Reserved identifiers. This is the union of all the keywords for C, @@ -58,7 +52,7 @@ enum rid RID_VOLATILE, RID_SIGNED, RID_AUTO, RID_RESTRICT, /* C extensions */ - RID_BOUNDED, RID_UNBOUNDED, RID_COMPLEX, RID_THREAD, + RID_COMPLEX, RID_THREAD, RID_SAT, /* C++ */ RID_FRIEND, RID_VIRTUAL, RID_EXPLICIT, RID_EXPORT, RID_MUTABLE, @@ -75,8 +69,10 @@ enum rid /* 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_CHOOSE_EXPR, RID_TYPES_COMPATIBLE_P, + 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, /* Too many ways of getting the name of a function as a string */ RID_FUNCTION_NAME, RID_PRETTY_FUNCTION_NAME, RID_C99_FUNCTION_NAME, @@ -86,18 +82,36 @@ 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, + /* 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_ID, RID_AT_ENCODE, RID_AT_END, + 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, @@ -105,6 +119,8 @@ enum rid 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, @@ -112,16 +128,16 @@ enum rid }; #define OBJC_IS_AT_KEYWORD(rid) \ - ((unsigned int)(rid) >= (unsigned int)RID_FIRST_AT && \ - (unsigned int)(rid) <= (unsigned int)RID_LAST_AT) + ((unsigned int) (rid) >= (unsigned int) RID_FIRST_AT && \ + (unsigned int) (rid) <= (unsigned int) RID_LAST_AT) #define OBJC_IS_PQ_KEYWORD(rid) \ - ((unsigned int)(rid) >= (unsigned int)RID_FIRST_PQ && \ - (unsigned int)(rid) <= (unsigned int)RID_LAST_PQ) + ((unsigned int) (rid) >= (unsigned int) RID_FIRST_PQ && \ + (unsigned int) (rid) <= (unsigned int) RID_LAST_PQ) /* The elements of `ridpointers' are identifier nodes for the reserved type names and storage classes. It is indexed by a RID_... value. */ -extern GTY ((length ("(int)RID_MAX"))) tree *ridpointers; +extern GTY ((length ("(int) RID_MAX"))) tree *ridpointers; /* Standard named or nameless data types of the C compiler. */ @@ -145,28 +161,22 @@ 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_DEFAULT_FUNCTION_TYPE, + CTI_TRUTHVALUE_TYPE, + CTI_TRUTHVALUE_TRUE, + CTI_TRUTHVALUE_FALSE, - CTI_G77_INTEGER_TYPE, - CTI_G77_UINTEGER_TYPE, - CTI_G77_LONGINT_TYPE, - CTI_G77_ULONGINT_TYPE, + CTI_DEFAULT_FUNCTION_TYPE, /* These are not types, but we have to look them up all the time. */ CTI_FUNCTION_NAME_DECL, CTI_PRETTY_FUNCTION_NAME_DECL, CTI_C99_FUNCTION_NAME_DECL, CTI_SAVED_FUNCTION_NAME_DECLS, - + CTI_VOID_ZERO, + CTI_NULL, + CTI_MAX }; @@ -191,13 +201,9 @@ 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] @@ -207,12 +213,6 @@ struct c_common_identifier GTY(()) #define default_function_type c_global_trees[CTI_DEFAULT_FUNCTION_TYPE] -/* g77 integer types, which which must be kept in sync with f/com.h */ -#define g77_integer_type_node c_global_trees[CTI_G77_INTEGER_TYPE] -#define g77_uinteger_type_node c_global_trees[CTI_G77_UINTEGER_TYPE] -#define g77_longint_type_node c_global_trees[CTI_G77_LONGINT_TYPE] -#define g77_ulongint_type_node c_global_trees[CTI_G77_ULONGINT_TYPE] - #define function_name_decl_node c_global_trees[CTI_FUNCTION_NAME_DECL] #define pretty_function_name_decl_node c_global_trees[CTI_PRETTY_FUNCTION_NAME_DECL] #define c99_function_name_decl_node c_global_trees[CTI_C99_FUNCTION_NAME_DECL] @@ -221,33 +221,47 @@ struct c_common_identifier GTY(()) /* A node for `((void) 0)'. */ #define void_zero_node c_global_trees[CTI_VOID_ZERO] +/* The node for C++ `__null'. */ +#define null_node c_global_trees[CTI_NULL] + 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) -/* 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 = 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) + +extern bool lang_fortran; + /* Information about a statement tree. */ struct stmt_tree_s GTY(()) { - /* The last statement added to the tree. */ - tree x_last_stmt; - /* 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; + /* The current statement list being collected. */ + tree x_cur_stmt_list; + /* In C++, Nonzero 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 @@ -274,101 +288,66 @@ struct c_language_function GTY(()) { /* While we are parsing the function, this contains information about the statement-tree that we are building. */ struct stmt_tree_s x_stmt_tree; - /* The stack of SCOPE_STMTs for the current function. */ - tree x_scope_stmt_stack; }; -/* When building a statement-tree, this is the last statement added to - the tree. */ - -#define last_tree (current_stmt_tree ()->x_last_stmt) - -/* The type of the last expression-statement we have seen. */ - -#define last_expr_type (current_stmt_tree ()->x_last_expr_type) +/* When building a statement-tree, this is the current statement list + being collected. It's TREE_CHAIN is a back-pointer to the previous + statement list. */ -/* 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 - makes LAST_TREE the indicated SUBSTMT of STMT. */ - -#define RECHAIN_STMTS(stmt, substmt) \ - do { \ - substmt = TREE_CHAIN (stmt); \ - TREE_CHAIN (stmt) = NULL_TREE; \ - last_tree = stmt; \ - } while (0) +#define cur_stmt_list (current_stmt_tree ()->x_cur_stmt_list) /* 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)); - -/* 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; -}; +/* 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 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 (tree, enum tree_code, tree); +extern tree build_indirect_ref (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 (const_tree decl); + +/* 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; -/* Nonzero if we can read a PCH file now. */ +/* Nonzero means that we will allow new ObjC exception syntax (@throw, + @try, etc.) in source code. */ +extern int flag_objc_exceptions; -extern int allow_pch; - -/* Switches common to the C front ends. */ +/* Nonzero means that we generate NeXT setjmp based exceptions. */ +extern int flag_objc_sjlj_exceptions; -/* Nonzero if prepreprocessing 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; -extern int flag_preprocess_only; +/* 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. */ @@ -388,6 +367,10 @@ extern char flag_dump_macros; extern char flag_dump_includes; +/* Nonzero means process PCH files while preprocessing. */ + +extern bool flag_pch_preprocess; + /* The file name to which we should write a precompiled header, or NULL if no header will be written in this compile. */ @@ -398,9 +381,6 @@ extern const char *pch_file; extern int flag_iso; -/* Nonzero whenever Objective-C functionality is being used. */ -extern int flag_objc; - /* Nonzero if -undef was given. It suppresses target built-in macros and assertions. */ @@ -423,6 +403,10 @@ extern int flag_short_double; 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; @@ -435,111 +419,23 @@ 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; -extern int explicit_flag_signed_bitfields; - -/* Nonzero means warn about pointer casts that can drop a type qualifier - from the pointer target type. */ -extern int warn_cast_qual; +/* Warn about #pragma directives that are not recognized. */ -/* Warn about functions which might be candidates for format attributes. */ - -extern int warn_missing_format_attribute; - -/* Nonzero means warn about sizeof(function) or addition/subtraction - of function pointers. */ - -extern int warn_pointer_arith; - -/* Nonzero means warn for any global function def - without separate previous prototype decl. */ - -extern int warn_missing_prototypes; - -/* Warn if adding () is suggested. */ - -extern int warn_parentheses; - -/* Warn if initializer is not completely bracketed. */ - -extern int warn_missing_braces; - -/* Warn about comparison of signed and unsigned values. - If -1, neither -Wsign-compare nor -Wno-sign-compare has been specified. */ - -extern int warn_sign_compare; - -/* Nonzero means warn about usage of long long when `-pedantic'. */ - -extern int warn_long_long; - -/* Nonzero means warn about deprecated conversion from string constant to - `char *'. */ - -extern int warn_write_strings; - -/* Nonzero means warn about multiple (redundant) decls for the same single - variable or function. */ - -extern int warn_redundant_decls; - -/* Warn about testing equality of floating point numbers. */ - -extern int warn_float_equal; - -/* Warn about a subscript that has type char. */ - -extern int warn_char_subscripts; - -/* Warn if a type conversion is done that might have confusing results. */ - -extern int warn_conversion; - -/* 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 warn_format; -/* Warn about Y2K problems with strftime formats. */ - -extern int warn_format_y2k; - -/* Warn about excess arguments to formats. */ - -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; - -/* Warn about possible security problems with calls to format functions. */ - -extern int warn_format_security; - /* C/ObjC language option variables. */ -/* Nonzero means message about use of implicit function declarations; - 1 means warning; 2 means error. */ - -extern int mesg_implicit_function_declaration; - /* Nonzero means allow type mismatches in conditional expressions; just make their values `void'. */ @@ -553,63 +449,14 @@ 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. */ - -extern int warn_bad_function_cast; - -/* Warn about traditional constructs whose meanings changed in ANSI C. */ - -extern int warn_traditional; - -/* Nonzero means warn for non-prototype function decls - or non-prototyped defs without previous prototype. */ - -extern int warn_strict_prototypes; - -/* Nonzero means warn for any global function def - without separate previous decl. */ - -extern int warn_missing_declarations; - -/* Nonzero means warn about extern declarations of objects not at - file-scope level and about *all* declarations of functions (whether - extern or static) not at file-scope level. Note that we exclude - implicit function declarations. To get warnings about those, use - -Wimplicit. */ - -extern int warn_nested_externs; - /* Warn if main is suspicious. */ extern int warn_main; -/* Nonzero means 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 warn about use of implicit int. */ - -extern int warn_implicit_int; - -/* Warn about NULL being passed to argument slots marked as requiring - non-NULL. */ - -extern int warn_nonnull; - /* ObjC language option variables. */ @@ -619,10 +466,6 @@ extern int warn_nonnull; 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. */ @@ -633,25 +476,6 @@ extern int print_struct_values; extern const char *constant_string_class_name; -/* Warn if multiple methods are seen for the same selector, but with - different argument types. Performs the check on the whole selector - table at the end of compilation. */ - -extern int warn_selector; - -/* Warn if a @selector() is found, and no method with that selector - has been previously declared. The check is done on each - @selector() as soon as it is found - so it warns about forward - declarations. */ - -extern int warn_undeclared_selector; - -/* Warn if methods required by a protocol are not implemented in the - class adopting it. When turned off, methods inherited to that - class are also considered implemented. */ - -extern int warn_protocol; - /* C++ language option variables. */ @@ -665,17 +489,6 @@ 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; @@ -726,6 +539,19 @@ extern int flag_access_control; 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. @@ -741,14 +567,22 @@ 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. */ +/* Nonzero to use __cxa_get_exception_ptr in the C++ exception-handling + logic. */ -extern int flag_vtable_gc; +extern int flag_use_cxa_get_exception_ptr; /* Nonzero means make the default pedwarns warnings instead of errors. The value of this flag is ignored if -pedantic is specified. */ @@ -762,80 +596,20 @@ 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 (the default) means to generate thread-safe code for + initializing local statics. */ -/* Nonzero means warn about things that will change when compiling - with an ABI-compliant compiler. */ - -extern int warn_abi; +extern int flag_threadsafe_statics; /* Nonzero means warn about implicit declarations. */ extern int warn_implicit; -/* Nonzero means warn when all ctors or dtors are private, and the class - has no friends. */ - -extern int warn_ctor_dtor_privacy; - -/* Nonzero means warn in function declared in derived class has the - same name as a virtual in the base class, but fails to match the - type signature of any virtual function in the base class. */ - -extern int warn_overloaded_virtual; - -/* Nonzero means warn when declaring a class that has a non virtual - destructor, when it really ought to have a virtual one. */ +/* Warn about using __null (as NULL in C++) as sentinel. For code compiled + with GCC this doesn't matter as __null is guaranteed to have the right + size. */ -extern int warn_nonvdtor; - -/* Nonzero means warn when the compiler will reorder code. */ - -extern int warn_reorder; - -/* Nonzero means warn when synthesis behavior differs from Cfront's. */ - -extern int warn_synth; - -/* Nonzero means warn when we convert a pointer to member function - into a pointer to (void or function). */ - -extern int warn_pmf2ptr; - -/* Nonzero means warn about violation of some Effective C++ style rules. */ - -extern int warn_ecpp; - -/* Nonzero means warn where overload resolution chooses a promotion from - unsigned to signed over a conversion to an unsigned of the same size. */ - -extern int warn_sign_promo; - -/* Nonzero means warn when an old-style cast is used. */ - -extern int warn_old_style_cast; - -/* Nonzero means warn when non-templatized friend functions are - declared within a template */ - -extern int warn_nontemplate_friend; - -/* Nonzero means complain about deprecated features. */ - -extern int warn_deprecated; +extern int warn_strict_null_sentinel; /* Maximum template instantiation depth. This limit is rather arbitrary, but it exists to limit the time it takes to notice @@ -864,10 +638,6 @@ extern int skip_evaluation; #define C_TYPE_OBJECT_OR_INCOMPLETE_P(type) \ (!C_TYPE_FUNCTION_P (type)) -/* Record in each node resulting from a binary operator - 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[]; @@ -877,269 +647,119 @@ 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, 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, 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 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_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_build_bitfield_integer_type (unsigned HOST_WIDE_INT, int); +extern bool decl_with_nonnull_addr_p (const_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, 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 PARAMS ((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)); -/* Validate the expression after `case' and apply default promotions. */ -extern tree check_case_value PARAMS ((tree)); -extern tree fix_string_type PARAMS ((tree)); +extern void binary_op_error (enum tree_code, tree, 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)); - -/* Read the rest of the current #-directive line. */ -extern char *get_directive_line PARAMS ((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) +extern void constant_expression_warning (tree); +extern bool strict_aliasing_warning (tree, tree, tree); +extern void empty_if_body_warning (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 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 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 c_common_nodes_and_builtins (void); + +extern void set_builtin_user_assembler_name (tree decl, const char *asmspec); + +extern void disable_builtin_function (const char *); + +extern void set_compound_literal_name (tree decl); + +extern tree build_va_arg (tree, tree); -extern void disable_builtin_function PARAMS ((const char *)); +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 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 (const_tree); +extern int self_promoting_args_p (const_tree); +extern tree strip_array_types (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); -extern tree build_va_arg PARAMS ((tree, tree)); +/* 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); -extern void c_common_init_options PARAMS ((enum c_language_kind)); -extern bool c_common_post_options PARAMS ((const char **)); -extern bool c_common_init PARAMS ((void)); -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)); /* 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)) - -/* 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 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) - -/* WHILE_STMT accessors. These give access to the condition of the - while statement and the body of the while statement, respectively. */ -#define WHILE_COND(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 0) -#define WHILE_BODY(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 1) - -/* DO_STMT accessors. These give access to the condition of the do - statement and the body of the do statement, respectively. */ -#define DO_COND(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 0) -#define DO_BODY(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 1) - -/* RETURN_STMT accessors. These give the expression associated with a - return statement, and whether it should be ignored when expanding - (as opposed to inlining). */ -#define RETURN_STMT_EXPR(NODE) TREE_OPERAND (RETURN_STMT_CHECK (NODE), 0) - -/* EXPR_STMT accessor. This gives the expression associated with an - expression statement. */ -#define EXPR_STMT_EXPR(NODE) TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0) - -/* FOR_STMT accessors. These give access to the init statement, - condition, update expression, and body of the for statement, - respectively. */ -#define FOR_INIT_STMT(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 0) -#define FOR_COND(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 1) -#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, 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. */ -#define CASE_LOW(NODE) TREE_OPERAND (CASE_LABEL_CHECK (NODE), 0) -#define CASE_HIGH(NODE) TREE_OPERAND (CASE_LABEL_CHECK (NODE), 1) -#define CASE_LABEL_DECL(NODE) TREE_OPERAND (CASE_LABEL_CHECK (NODE), 2) - -/* 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 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 - 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) - -/* ASM_STMT accessors. ASM_STRING returns a STRING_CST for the - instruction (e.g., "mov x, y"). ASM_OUTPUTS, ASM_INPUTS, and - ASM_CLOBBERS represent the outputs, inputs, and clobbers for the - statement. */ -#define ASM_CV_QUAL(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 0) -#define ASM_STRING(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 1) -#define ASM_OUTPUTS(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 2) -#define ASM_INPUTS(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 3) -#define ASM_CLOBBERS(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 4) - -/* DECL_STMT accessor. This gives access to the DECL associated with - the given declaration statement. */ -#define DECL_STMT_DECL(NODE) TREE_OPERAND (DECL_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) +/* Nonzero if a given STATEMENT_LIST represents the outermost binding + if a statement expression. */ +#define STATEMENT_LIST_STMT_EXPR(NODE) \ + TREE_LANG_FLAG_1 (STATEMENT_LIST_CHECK (NODE)) + +/* Nonzero if a label has been added to the statement list. */ +#define STATEMENT_LIST_HAS_LABEL(NODE) \ + TREE_LANG_FLAG_3 (STATEMENT_LIST_CHECK (NODE)) /* 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))) - -/* Nonzero if this SCOPE_STMT is for the end of a scope. */ -#define SCOPE_END_P(NODE) \ - (!SCOPE_BEGIN_P (SCOPE_STMT_CHECK (NODE))) - -/* The BLOCK containing the declarations contained in this scope. */ -#define SCOPE_STMT_BLOCK(NODE) \ - (TREE_OPERAND (SCOPE_STMT_CHECK (NODE), 0)) - -/* Nonzero for a SCOPE_STMT if there were no variables in this scope. */ -#define SCOPE_NULLIFIED_P(NODE) \ - (SCOPE_STMT_BLOCK ((NODE)) == NULL_TREE) - -/* Nonzero for a SCOPE_STMT which represents a lexical scope, but - which should be treated as non-existent from the point of view of - running cleanup actions. */ -#define SCOPE_NO_CLEANUPS_P(NODE) \ - (TREE_LANG_FLAG_3 (SCOPE_STMT_CHECK (NODE))) - -/* Nonzero for a SCOPE_STMT if this statement is for a partial scope. - For example, in: - - S s; - l: - S s2; - goto l; - - there is (implicitly) a new scope after `l', even though there are - no curly braces. In particular, when we hit the goto, we must - destroy s2 and then re-construct it. For the implicit scope, - SCOPE_PARTIAL_P will be set. */ -#define SCOPE_PARTIAL_P(NODE) \ - (TREE_LANG_FLAG_4 (SCOPE_STMT_CHECK (NODE))) - -/* Nonzero for an ASM_STMT if the assembly statement is volatile. */ -#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. */ -#define STMT_LINENO(NODE) \ - (TREE_COMPLEXITY ((NODE))) - -/* If nonzero, the STMT_LINENO for NODE is the line at which the - function ended. */ -#define STMT_LINENO_FOR_FN_P(NODE) \ - (TREE_LANG_FLAG_2 ((NODE))) - -/* Nonzero if we want the new ISO rules for pushing a new scope for `for' - initialization variables. */ -#define NEW_FOR_SCOPE_P(NODE) (TREE_LANG_FLAG_0 (NODE)) - -/* Nonzero if we want to create an ASM_INPUT instead of an - ASM_OPERAND with no operands. */ -#define ASM_INPUT_P(NODE) (TREE_LANG_FLAG_0 (NODE)) + DECL_EXPR_DECL (COMPOUND_LITERAL_EXPR_DECL_STMT (NODE)) #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) SYM, @@ -1151,28 +771,7 @@ 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)); +extern int anon_aggr_type_p (const_tree); /* For a VAR_DECL that is an anonymous union, these are the various sub-variables that make up the anonymous union. */ @@ -1186,120 +785,229 @@ extern int anon_aggr_type_p PARAMS ((tree)); #define CLEAR_DECL_C_BIT_FIELD(NODE) \ (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 0) -/* In a VAR_DECL, nonzero if the decl is a register variable with - 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 tree do_case (tree, tree); +extern tree build_stmt (enum tree_code, ...); +extern tree build_case_label (tree, tree, 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) +/* 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 void c_expand_asm_operands PARAMS ((tree, tree, tree, tree, int, const char *, int)); +extern tree build_unary_op (enum tree_code, tree, int); +extern tree build_binary_op (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 in c-common.c. */ + a variant of the C language. They are used by port files. */ -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 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 expand_tree_builtin PARAMS ((tree, tree, tree)); +extern tree common_type (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 int case_compare (splay_tree_key, splay_tree_key); -extern int case_compare PARAMS ((splay_tree_key, - splay_tree_key)); +extern tree c_add_case_label (splay_tree, tree, tree, tree, tree); -extern tree c_add_case_label PARAMS ((splay_tree, - tree, tree, - tree)); +extern void c_do_switch_warnings (splay_tree, location_t, 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 resolve_overloaded_builtin (tree, 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 rtx c_expand_expr PARAMS ((tree, rtx, - enum machine_mode, - int)); +extern tree lookup_label (tree); +extern tree lookup_name (tree); -extern int c_safe_from_p PARAMS ((rtx, tree)); +extern bool vector_types_convertible_p (const_tree t1, const_tree t2, bool emit_lax_note); -extern int c_staticp PARAMS ((tree)); +extern rtx c_expand_expr (tree, rtx, enum machine_mode, int, rtx *); -extern int c_common_unsafe_for_reeval PARAMS ((tree)); +extern tree c_staticp (tree); -extern void init_c_lex PARAMS ((void)); +extern void init_c_lex (void); -extern void c_cpp_builtins PARAMS ((cpp_reader *)); +extern void c_cpp_builtins (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; +extern GTY(()) int pending_lang_change; /* Information recorded about each file examined during compilation. */ struct c_fileinfo { int time; /* Time spent in the file. */ - short interface_only; /* Flags - used only by C++ */ + + /* Flags used only by C++. + INTERFACE_ONLY nonzero means that we are in an "interface" section + of the compiler. INTERFACE_UNKNOWN nonzero means we cannot trust + the value of INTERFACE_ONLY. If INTERFACE_UNKNOWN is zero and + INTERFACE_ONLY is zero, it means that we are responsible for + exporting definitions that others might need. */ + short interface_only; short interface_unknown; }; -struct c_fileinfo *get_fileinfo PARAMS ((const char *)); -extern void dump_time_statistics PARAMS ((void)); - -extern bool c_dump_tree PARAMS ((void *, tree)); - -extern void pch_init PARAMS ((void)); -extern int c_common_valid_pch PARAMS ((cpp_reader *pfile, - const char *name, - int fd)); -extern void c_common_read_pch PARAMS ((cpp_reader *pfile, - const char *name, - int fd, - const char *orig)); -extern void c_common_write_pch PARAMS ((void)); -extern void builtin_define_with_value PARAMS ((const char *, - const char *, int)); -extern void c_stddef_cpp_builtins PARAMS ((void)); -extern void fe_file_change PARAMS ((const struct line_map *)); +struct c_fileinfo *get_fileinfo (const char *); +extern void dump_time_statistics (void); + +extern bool c_dump_tree (void *, tree); + +extern void c_warn_unused_result (tree *); + +extern void verify_sequence_points (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 + readonly_error. */ +enum lvalue_use { + lv_assign, + lv_increment, + lv_decrement, + lv_addressof, + lv_asm +}; + +extern void lvalue_error (enum lvalue_use); + +extern int complete_array_type (tree *, tree, bool); + +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, + enum tree_code); +extern void warn_for_unused_label (tree label); +extern void warn_for_div_by_zero (tree divisor); + + +/* In c-gimplify.c */ +extern void c_genericize (tree); +extern int c_gimplify_expr (tree *, tree *, tree *); +extern tree c_build_bind_expr (tree, tree); + +/* In c-pch.c */ +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 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]; + +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 void c_parse_error (const char *, enum cpp_ttype, tree); + +/* Objective-C / Objective-C++ entry points. */ + +/* The following ObjC/ObjC++ functions are called by the C and/or C++ + front-ends; they all must have corresponding stubs in stub-objc.c. */ +extern tree objc_is_class_name (tree); +extern tree objc_is_object_ptr (tree); +extern void objc_check_decl (tree); +extern int objc_is_reserved_word (tree); +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 objc_clear_super_receiver (void); +extern int objc_is_public (tree, tree); +extern tree objc_is_id (tree); +extern void objc_declare_alias (tree, tree); +extern void objc_declare_class (tree); +extern void objc_declare_protocols (tree); +extern tree objc_build_message_expr (tree); +extern tree objc_finish_message_expr (tree, tree, tree); +extern tree objc_build_selector_expr (tree); +extern tree objc_build_protocol_expr (tree); +extern tree objc_build_encode_expr (tree); +extern tree objc_build_string_object (tree); +extern tree objc_get_protocol_qualified_type (tree, tree); +extern tree objc_get_class_reference (tree); +extern tree objc_get_class_ivars (tree); +extern void objc_start_class_interface (tree, tree, tree); +extern void objc_start_category_interface (tree, tree, tree); +extern void objc_start_protocol (tree, tree); +extern void objc_continue_interface (void); +extern void objc_finish_interface (void); +extern void objc_start_class_implementation (tree, tree); +extern void objc_start_category_implementation (tree, tree); +extern void objc_continue_implementation (void); +extern void objc_finish_implementation (void); +extern void objc_set_visibility (int); +extern void objc_set_method_type (enum tree_code); +extern tree objc_build_method_signature (tree, tree, tree, bool); +extern void objc_add_method_declaration (tree); +extern void objc_start_method_definition (tree); +extern void objc_finish_method_definition (tree); +extern void objc_add_instance_variable (tree); +extern tree objc_build_keyword_decl (tree, tree, tree); +extern tree objc_build_throw_stmt (tree); +extern void objc_begin_try_stmt (location_t, tree); +extern tree objc_finish_try_stmt (void); +extern void objc_begin_catch_clause (tree); +extern void objc_finish_catch_clause (void); +extern void objc_build_finally_clause (location_t, tree); +extern tree objc_build_synchronized (location_t, tree, tree); +extern int objc_static_init_needed_p (void); +extern tree objc_generate_static_init_call (tree); +extern tree objc_generate_write_barrier (tree, enum tree_code, tree); + +/* The following are provided by the C and C++ front-ends, and called by + ObjC/ObjC++. */ +extern void *objc_get_current_scope (void); +extern void objc_mark_locals_volatile (void *); /* In c-ppoutput.c */ -extern void init_pp_output PARAMS ((FILE *)); -extern void preprocess_file PARAMS ((cpp_reader *)); -extern void pp_file_change PARAMS ((const struct line_map *)); +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 *); +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 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 */