diff options
Diffstat (limited to 'contrib/gcc/c-common.h')
| -rw-r--r-- | contrib/gcc/c-common.h | 839 |
1 files changed, 602 insertions, 237 deletions
diff --git a/contrib/gcc/c-common.h b/contrib/gcc/c-common.h index 633990a..3466bff 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, 2003, 2004, 2005 Free Software Foundation, Inc. + 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc. This file is part of GCC. @@ -16,8 +16,8 @@ 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, 51 Franklin Street, Fifth Floor, Boston, MA -02110-1301, USA. */ +Software Foundation, 59 Temple Place - Suite 330, Boston, MA +02111-1307, USA. */ #ifndef GCC_C_COMMON_H #define GCC_C_COMMON_H @@ -27,14 +27,21 @@ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA #include "ggc.h" /* Usage of TREE_LANG_FLAG_?: - 0: TREE_NEGATED_INT (in INTEGER_CST). + 0: COMPOUND_STMT_NO_SCOPE (in COMPOUND_STMT). + 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) - STATEMENT_LIST_STMT_EXPR (in STATEMENT_LIST) - 2: unused - 3: STATEMENT_LIST_HAS_LABEL (in STATEMENT_LIST) - 4: unused + 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) + STMT_EXPR_WARN_UNUSED_RESULT (in STMT_EXPR) + 4: SCOPE_PARTIAL_P (in SCOPE_STMT) */ /* Reserved identifiers. This is the union of all the keywords for C, @@ -70,9 +77,8 @@ enum rid /* C extensions */ RID_ASM, RID_TYPEOF, RID_ALIGNOF, RID_ATTRIBUTE, RID_VA_ARG, - RID_EXTENSION, RID_IMAGPART, RID_REALPART, RID_LABEL, RID_CHOOSE_EXPR, - RID_TYPES_COMPATIBLE_P, - RID_DFLOAT32, RID_DFLOAT64, RID_DFLOAT128, + RID_EXTENSION, RID_IMAGPART, RID_REALPART, RID_LABEL, RID_PTRBASE, + 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, @@ -82,19 +88,19 @@ enum rid RID_PUBLIC, RID_PRIVATE, RID_PROTECTED, RID_TEMPLATE, RID_NULL, RID_CATCH, RID_DELETE, RID_FALSE, RID_NAMESPACE, - RID_NEW, RID_OFFSETOF, RID_OPERATOR, - RID_THIS, RID_THROW, RID_TRUE, - RID_TRY, RID_TYPENAME, RID_TYPEID, + RID_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, /* Objective-C */ - RID_AT_ENCODE, RID_AT_END, + 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_PROTOCOL, RID_AT_SELECTOR, RID_AT_THROW, RID_AT_TRY, RID_AT_CATCH, RID_AT_FINALLY, RID_AT_SYNCHRONIZED, RID_AT_INTERFACE, @@ -112,16 +118,16 @@ 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. */ @@ -151,16 +157,19 @@ enum c_tree_index CTI_DEFAULT_FUNCTION_TYPE, + CTI_G77_INTEGER_TYPE, + CTI_G77_UINTEGER_TYPE, + CTI_G77_LONGINT_TYPE, + CTI_G77_ULONGINT_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 }; @@ -197,6 +206,12 @@ 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] @@ -205,9 +220,6 @@ 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 @@ -222,6 +234,10 @@ struct sorted_fields_type GTY(()) 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, /* C90, C94 or C99 */ @@ -241,9 +257,13 @@ extern c_language_kind c_language; /* Information about a statement tree. */ struct stmt_tree_s GTY(()) { - /* The current statement list being collected. */ - tree x_cur_stmt_list; - + /* 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; /* 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 @@ -270,42 +290,64 @@ 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 current statement list - being collected. It's TREE_CHAIN is a back-pointer to the previous - statement list. */ +/* 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) -#define cur_stmt_list (current_stmt_tree ()->x_cur_stmt_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) /* Language-specific hooks. */ +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) (tree); -/* If non-NULL, this function is called after a precompile header file - is loaded. */ -extern void (*lang_post_pch_load) (void); - -extern void push_file_scope (void); -extern void pop_file_scope (void); +extern int yyparse (void); extern stmt_tree current_stmt_tree (void); -extern tree push_stmt_list (void); -extern tree pop_stmt_list (tree); +extern tree *current_scope_stmt_stack (void); +extern void begin_stmt_tree (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 void add_decl_stmt (tree); +extern tree add_scope_stmt (int, int); +extern void finish_stmt_tree (tree *); -extern int c_expand_decl (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 *); -extern bool has_c_linkage (tree decl); +extern void resort_sorted_fields (void *, void *, gt_pointer_operator, + void *); /* Switches common to the C front ends. */ @@ -322,9 +364,6 @@ extern int flag_nil_receivers; @try, etc.) in source code. */ extern int flag_objc_exceptions; -/* Nonzero means that we generate NeXT setjmp based exceptions. */ -extern int flag_objc_sjlj_exceptions; - /* 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. */ @@ -353,10 +392,6 @@ 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. */ @@ -404,20 +439,107 @@ extern int flag_const_strings; /* 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 functions which might be candidates for format attributes. */ + +extern int warn_missing_format_attribute; + +/* Nonzero means do not warn that K&R style main() is not a function prototype. */ +extern int flag_bsd_no_warn_kr_main; + +/* 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; -/* Warn about #pragma directives that are not recognized. */ +/* Nonzero means warn about multiple (redundant) decls for the same single + variable or function. */ -extern int warn_unknown_pragmas; /* Tri state variable. */ +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. */ /* 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'. */ @@ -431,14 +553,76 @@ extern int flag_isoc94; extern int flag_isoc99; +/* Nonzero means allow the BSD kernel printf enhancments. */ + +extern int flag_bsd_format; + /* Nonzero means that we have builtin functions, and main is an int. */ extern int flag_hosted; +/* 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 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. */ + +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 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; + +/* 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; + +/* Warn about old-style parameter declaration. */ + +extern int warn_old_style_definition; + /* ObjC language option variables. */ @@ -448,6 +632,10 @@ extern int warn_main; 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. */ @@ -458,6 +646,25 @@ 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. */ @@ -548,11 +755,6 @@ extern int flag_working_directory; extern int flag_use_cxa_atexit; -/* Nonzero to use __cxa_get_exception_ptr in the C++ exception-handling - logic. */ - -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. */ @@ -565,20 +767,69 @@ extern int flag_permissive; extern int flag_enforce_eh_specs; -/* 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 invalid uses of offsetof. */ + +extern int warn_invalid_offsetof; /* Nonzero means warn about implicit declarations. */ extern int warn_implicit; -/* 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. */ +/* 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. */ + +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_strict_null_sentinel; +extern int warn_nontemplate_friend; + +/* Nonzero means complain about deprecated features. */ + +extern int warn_deprecated; /* Maximum template instantiation depth. This limit is rather arbitrary, but it exists to limit the time it takes to notice @@ -607,6 +858,10 @@ 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[]; @@ -626,13 +881,13 @@ 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, 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 (tree, tree); +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 *); @@ -643,26 +898,36 @@ 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_build_bitfield_integer_type (unsigned HOST_WIDE_INT, int); 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_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 (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 (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 (tree); extern tree fix_string_type (tree); struct varray_head_tag; extern void constant_expression_warning (tree); -extern void strict_aliasing_warning(tree, tree, tree); -extern void empty_body_warning (tree, tree); extern tree convert_and_check (tree, tree); extern void overflow_warning (tree); -extern bool c_determine_visibility (tree); -extern bool same_scalar_type_ignoring_signedness (tree, tree); +extern void unsigned_conversion_warning (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) +/* Read the rest of the current #-directive line. */ +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) /* Subroutine of build_binary_op, used for comparison operations. See if the operands have both been converted from subword integer types @@ -679,12 +944,8 @@ extern tree c_build_qualified_type (tree, int); frontends. */ 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 unsigned int c_common_init_options (unsigned int, const char **); @@ -698,30 +959,190 @@ 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); -extern HOST_WIDE_INT c_common_to_target_charset (HOST_WIDE_INT); +/* 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. */ -/* 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)) +/* 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)) + +/* 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) /* 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_EXPR_DECL (COMPOUND_LITERAL_EXPR_DECL_STMT (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)) #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) SYM, @@ -733,6 +1154,47 @@ enum c_tree_code { #undef DEFTREECODE +#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 @@ -747,21 +1209,35 @@ extern int anon_aggr_type_p (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 (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) + +/* 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 (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 (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 by port files. */ - +extern int lvalue_p (tree); extern tree default_conversion (tree); /* Given two integer or real types, return the type for their sum. @@ -769,33 +1245,38 @@ extern tree default_conversion (tree); extern tree common_type (tree, tree); +extern tree expand_tree_builtin (tree, tree, tree); + extern tree decl_constant_value (tree); /* Handle increment and decrement of boolean types. */ extern tree boolean_increment (enum tree_code, tree); -extern int case_compare (splay_tree_key, splay_tree_key); +/* 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 (void); -extern tree c_add_case_label (splay_tree, tree, tree, tree, tree); +extern int case_compare (splay_tree_key, splay_tree_key); -extern void c_do_switch_warnings (splay_tree, location_t, tree, tree); +extern tree c_add_case_label (splay_tree, tree, tree, tree); extern tree build_function_call (tree, 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 (tree); -extern tree lookup_name (tree); extern int vector_types_convertible_p (tree t1, tree t2); extern rtx c_expand_expr (tree, rtx, enum machine_mode, int, rtx *); -extern tree c_staticp (tree); +extern int c_safe_from_p (rtx, tree); + +extern int c_staticp (tree); + +extern int c_common_unsafe_for_reeval (tree); extern void init_c_lex (void); @@ -803,21 +1284,14 @@ 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 GTY(()) int pending_lang_change; +extern int pending_lang_change; /* Information recorded about each file examined during compilation. */ struct c_fileinfo { int time; /* Time spent in the file. */ - - /* 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_only; /* Flags - used only by C++ */ short interface_unknown; }; @@ -826,114 +1300,30 @@ 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); - -/* 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 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); -/* 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); +/* 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_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 int objc_comptypes (tree, tree, int); 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 tree lookup_objc_ivar (tree); +extern void *get_current_scope (void); extern void objc_mark_locals_volatile (void *); /* In c-ppoutput.c */ @@ -941,30 +1331,5 @@ 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 */ |
