X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Fc-tree.h;h=f67c4d20796aa9ee5c0247debb531e9952f2020b;hb=13774f7b28a842c75a76bb2f08c448fca3bb9ca5;hp=f6e195fa101c673e4ef55a2070cbf263234145d0;hpb=056a8ee62feab192510d52553345a99f7f652e7c;p=pf3gnuchains%2Fgcc-fork.git diff --git a/gcc/c-tree.h b/gcc/c-tree.h index f6e195fa101..f67c4d20796 100644 --- a/gcc/c-tree.h +++ b/gcc/c-tree.h @@ -1,6 +1,6 @@ /* Definitions for C parsing and type checking. Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998, - 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc. + 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. This file is part of GCC. @@ -16,13 +16,14 @@ 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. */ +Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301, USA. */ #ifndef GCC_C_TREE_H #define GCC_C_TREE_H #include "c-common.h" +#include "toplev.h" #include "diagnostic.h" /* struct lang_identifier is private to c-decl.c, but langhooks.c needs to @@ -30,21 +31,11 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA #define C_SIZEOF_STRUCT_LANG_IDENTIFIER \ (sizeof (struct c_common_identifier) + 3 * sizeof (void *)) -/* For gc purposes, return the most likely link for the longest chain. */ -#define C_LANG_TREE_NODE_CHAIN_NEXT(T) \ - ((union lang_tree_node *) \ - (TREE_CODE (T) == INTEGER_TYPE ? TYPE_NEXT_VARIANT (T) \ - : TREE_CODE (T) == COMPOUND_EXPR ? TREE_OPERAND (T, 1) \ - : TREE_CHAIN (T))) - /* Language-specific declaration information. */ struct lang_decl GTY(()) { - /* The return types and parameter types may have variable size. - This is a list of any SAVE_EXPRs that need to be evaluated to - compute those sizes. */ - tree pending_sizes; + char dummy; }; /* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */ @@ -73,6 +64,10 @@ struct lang_type GTY(()) /* In an ENUMERAL_TYPE, the min and max values. */ tree enum_min; tree enum_max; + /* In a RECORD_TYPE, information specific to Objective-C, such + as a list of adopted protocols or a pointer to a corresponding + @interface. See objc/objc-act.h for details. */ + tree objc_info; }; /* Record whether a type or decl was written with nonconstant size. @@ -92,7 +87,13 @@ struct lang_type GTY(()) /* For FUNCTION_DECLs, evaluates true if the decl is built-in but has been declared. */ -#define C_DECL_DECLARED_BUILTIN(EXP) DECL_LANG_FLAG_3 (EXP) +#define C_DECL_DECLARED_BUILTIN(EXP) \ + DECL_LANG_FLAG_3 (FUNCTION_DECL_CHECK (EXP)) + +/* For FUNCTION_DECLs, evaluates true if the decl is built-in, has a + built-in prototype and does not have a non-built-in prototype. */ +#define C_DECL_BUILTIN_PROTOTYPE(EXP) \ + DECL_LANG_FLAG_6 (FUNCTION_DECL_CHECK (EXP)) /* Record whether a decl was declared register. This is strictly a front-end flag, whereas DECL_REGISTER is used for code generation; @@ -103,7 +104,34 @@ struct lang_type GTY(()) unevaluated operand of sizeof / typeof / alignof. This is only used for functions declared static but not defined, though outside sizeof and typeof it is set for other function decls as well. */ -#define C_DECL_USED(EXP) DECL_LANG_FLAG_5 (EXP) +#define C_DECL_USED(EXP) DECL_LANG_FLAG_5 (FUNCTION_DECL_CHECK (EXP)) + +/* Record whether a label was defined in a statement expression which + has finished and so can no longer be jumped to. */ +#define C_DECL_UNJUMPABLE_STMT_EXPR(EXP) \ + DECL_LANG_FLAG_6 (LABEL_DECL_CHECK (EXP)) + +/* Record whether a label was the subject of a goto from outside the + current level of statement expression nesting and so cannot be + defined right now. */ +#define C_DECL_UNDEFINABLE_STMT_EXPR(EXP) \ + DECL_LANG_FLAG_7 (LABEL_DECL_CHECK (EXP)) + +/* Record whether a label was defined in the scope of an identifier + with variably modified type which has finished and so can no longer + be jumped to. */ +#define C_DECL_UNJUMPABLE_VM(EXP) \ + DECL_LANG_FLAG_3 (LABEL_DECL_CHECK (EXP)) + +/* Record whether a label was the subject of a goto from outside the + current level of scopes of identifiers with variably modified type + and so cannot be defined right now. */ +#define C_DECL_UNDEFINABLE_VM(EXP) \ + DECL_LANG_FLAG_5 (LABEL_DECL_CHECK (EXP)) + +/* Record whether a variable has been declared threadprivate by + #pragma omp threadprivate. */ +#define C_DECL_THREADPRIVATE_P(DECL) DECL_LANG_FLAG_3 (VAR_DECL_CHECK (DECL)) /* Nonzero for a decl which either doesn't exist or isn't a prototype. N.B. Could be simplified if all built-in decls had complete prototypes @@ -125,12 +153,45 @@ struct c_expr /* The value of the expression. */ tree value; /* Record the original binary operator of an expression, which may - have been changed by fold, STRING_CST for unparenthesised string + have been changed by fold, STRING_CST for unparenthesized string constants, or ERROR_MARK for other expressions (including parenthesized expressions). */ enum tree_code original_code; }; +/* A kind of type specifier. Note that this information is currently + only used to distinguish tag definitions, tag references and typeof + uses. */ +enum c_typespec_kind { + /* A reserved keyword type specifier. */ + ctsk_resword, + /* A reference to a tag, previously declared, such as "struct foo". + This includes where the previous declaration was as a different + kind of tag, in which case this is only valid if shadowing that + tag in an inner scope. */ + ctsk_tagref, + /* A reference to a tag, not previously declared in a visible + scope. */ + ctsk_tagfirstref, + /* A definition of a tag such as "struct foo { int a; }". */ + ctsk_tagdef, + /* A typedef name. */ + ctsk_typedef, + /* An ObjC-specific kind of type specifier. */ + ctsk_objc, + /* A typeof specifier. */ + ctsk_typeof +}; + +/* A type specifier: this structure is created in the parser and + passed to declspecs_add_type only. */ +struct c_typespec { + /* What kind of type specifier this is. */ + enum c_typespec_kind kind; + /* The specifier itself. */ + tree spec; +}; + /* A storage class specifier. */ enum c_storage_class { csc_none, @@ -150,7 +211,10 @@ enum c_typespec_keyword { cts_char, cts_int, cts_float, - cts_double + cts_double, + cts_dfloat32, + cts_dfloat64, + cts_dfloat128 }; /* A sequence of declaration specifiers in C. */ @@ -171,6 +235,10 @@ struct c_declspecs { enum c_typespec_keyword typespec_word; /* The storage class specifier, or csc_none if none. */ enum c_storage_class storage_class; + /* Whether any declaration specifiers have been seen at all. */ + BOOL_BITFIELD declspecs_seen_p : 1; + /* Whether a type specifier has been seen. */ + BOOL_BITFIELD type_seen_p : 1; /* Whether something other than a storage class specifier or attribute has been seen. This is used to warn for the obsolescent usage of storage class specifiers other than at the @@ -178,8 +246,12 @@ struct c_declspecs { specifiers to be handled separately from storage class specifiers.) */ BOOL_BITFIELD non_sc_seen_p : 1; - /* Whether the type is specified by a typedef. */ + /* Whether the type is specified by a typedef or typeof name. */ BOOL_BITFIELD typedef_p : 1; + /* Whether a struct, union or enum type either had its content + defined by a type specifier in the list or was the first visible + declaration of its tag. */ + BOOL_BITFIELD tag_defined_p : 1; /* Whether the type is explicitly "signed" or specified by a typedef whose type is explicitly "signed". */ BOOL_BITFIELD explicit_signed_p : 1; @@ -245,6 +317,7 @@ struct c_declarator { enum c_declarator_kind kind; /* Except for cdk_id, the contained declarator. For cdk_id, NULL. */ struct c_declarator *declarator; + location_t id_loc; /* Currently only set for cdk_id. */ union { /* For identifiers, an IDENTIFIER_NODE or NULL_TREE if an abstract declarator. */ @@ -307,8 +380,47 @@ struct language_function GTY(()) int extern_inline; }; +/* Save lists of labels used or defined in particular contexts. + Allocated on the parser obstack. */ + +struct c_label_list +{ + /* The label at the head of the list. */ + tree label; + /* The rest of the list. */ + struct c_label_list *next; +}; + +/* Statement expression context. */ + +struct c_label_context_se +{ + /* The labels defined at this level of nesting. */ + struct c_label_list *labels_def; + /* The labels used at this level of nesting. */ + struct c_label_list *labels_used; + /* The next outermost context. */ + struct c_label_context_se *next; +}; + +/* Context of variably modified declarations. */ + +struct c_label_context_vm +{ + /* The labels defined at this level of nesting. */ + struct c_label_list *labels_def; + /* The labels used at this level of nesting. */ + struct c_label_list *labels_used; + /* The scope of this context. Multiple contexts may be at the same + numbered scope, since each variably modified declaration starts a + new context. */ + unsigned scope; + /* The next outermost context. */ + struct c_label_context_vm *next; +}; + -/* in c-parse.in */ +/* in c-parser.c */ extern void c_parse_init (void); /* in c-aux-info.c */ @@ -323,7 +435,6 @@ extern int global_bindings_p (void); extern void push_scope (void); extern tree pop_scope (void); extern void insert_block (tree); -extern tree pushdecl (tree); extern void c_expand_body (tree); extern void c_init_decl_processing (void); @@ -333,11 +444,10 @@ extern int quals_from_declspecs (const struct c_declspecs *); extern struct c_declarator *build_array_declarator (tree, struct c_declspecs *, bool, bool); extern tree build_enumerator (tree, tree); -extern void check_for_loop_decls (void); +extern tree check_for_loop_decls (void); extern void mark_forward_parm_decls (void); -extern int complete_array_type (tree, tree, int); extern void declare_parm_level (void); -extern void undeclared_variable (tree); +extern void undeclared_variable (tree, location_t); extern tree declare_label (tree); extern tree define_label (location_t, tree); extern void finish_decl (tree, tree, tree); @@ -350,12 +460,10 @@ extern tree groktypename (struct c_type_name *); extern tree grokparm (const struct c_parm *); extern tree implicitly_declare (tree); extern void keep_next_level (void); -extern tree lookup_name (tree); extern void pending_xref_error (void); extern void c_push_function_context (struct function *); extern void c_pop_function_context (struct function *); extern void push_parm_decl (const struct c_parm *); -extern tree pushdecl_top_level (tree); extern struct c_declarator *set_array_declarator_inner (struct c_declarator *, struct c_declarator *, bool); @@ -371,6 +479,7 @@ extern tree start_struct (enum tree_code, tree); extern void store_parm_decls (void); extern void store_parm_decls_from (struct c_arg_info *); extern tree xref_tag (enum tree_code, tree); +extern struct c_typespec parser_xref_tag (enum tree_code, tree); extern int c_expand_decl (tree); extern struct c_parm *build_c_parm (struct c_declspecs *, tree, struct c_declarator *); @@ -383,7 +492,8 @@ extern struct c_declarator *make_pointer_declarator (struct c_declspecs *, struct c_declarator *); extern struct c_declspecs *build_null_declspecs (void); extern struct c_declspecs *declspecs_add_qual (struct c_declspecs *, tree); -extern struct c_declspecs *declspecs_add_type (struct c_declspecs *, tree); +extern struct c_declspecs *declspecs_add_type (struct c_declspecs *, + struct c_typespec); extern struct c_declspecs *declspecs_add_scspec (struct c_declspecs *, tree); extern struct c_declspecs *declspecs_add_attrs (struct c_declspecs *, tree); extern struct c_declspecs *finish_declspecs (struct c_declspecs *); @@ -394,7 +504,6 @@ extern int c_cannot_inline_tree_fn (tree *); extern bool c_objc_common_init (void); extern bool c_missing_noreturn_ok_p (tree); extern tree c_objc_common_truthvalue_conversion (tree expr); -extern int defer_fn (tree); extern bool c_warn_unused_global_decl (tree); extern void c_initialize_diagnostics (diagnostic_context *); @@ -409,30 +518,31 @@ extern int in_sizeof; extern int in_typeof; extern struct c_switch *c_switch_stack; +extern struct c_label_context_se *label_context_stack_se; +extern struct c_label_context_vm *label_context_stack_vm; extern tree require_complete_type (tree); extern int same_translation_unit_p (tree, tree); extern int comptypes (tree, tree); -extern tree c_size_in_bytes (tree); extern bool c_mark_addressable (tree); extern void c_incomplete_type_error (tree, tree); extern tree c_type_promotes_to (tree); +extern tree default_conversion (tree); +extern struct c_expr default_function_array_conversion (struct c_expr); extern tree composite_type (tree, tree); extern tree build_component_ref (tree, tree); -extern tree build_indirect_ref (tree, const char *); extern tree build_array_ref (tree, tree); -extern tree build_external_ref (tree, int); -extern void record_maybe_used_decl (tree); +extern tree build_external_ref (tree, int, location_t); extern void pop_maybe_used (bool); extern struct c_expr c_expr_sizeof_expr (struct c_expr); extern struct c_expr c_expr_sizeof_type (struct c_type_name *); +extern struct c_expr parser_build_unary_op (enum tree_code, struct c_expr); extern struct c_expr parser_build_binary_op (enum tree_code, struct c_expr, struct c_expr); extern tree build_conditional_expr (tree, tree, tree); extern tree build_compound_expr (tree, tree); extern tree c_cast_expr (struct c_type_name *, tree); extern tree build_c_cast (tree, tree); -extern tree build_modify_expr (tree, enum tree_code, tree); extern void store_init_value (tree, tree); extern void error_init (const char *); extern void pedwarn_init (const char *); @@ -464,6 +574,12 @@ extern tree c_finish_return (tree); extern tree c_finish_bc_stmt (tree *, bool); extern tree c_finish_goto_label (tree); extern tree c_finish_goto_ptr (tree); +extern void c_begin_vm_scope (unsigned int); +extern void c_end_vm_scope (unsigned int); +extern tree c_expr_to_decl (tree, bool *, bool *, bool *); +extern tree c_begin_omp_parallel (void); +extern tree c_finish_omp_parallel (tree, tree); +extern tree c_finish_omp_clauses (tree); /* Set to 0 at beginning of a function definition, set to 1 if a return statement that specifies a return value is seen. */ @@ -499,8 +615,7 @@ extern void c_write_global_declarations (void); /* In order for the format checking to accept the C frontend diagnostic framework extensions, you must include this file before toplev.h, not after. */ -#define GCC_DIAG_STYLE __gcc_cdiag__ -#if GCC_VERSION >= 3005 +#if GCC_VERSION >= 4001 #define ATTRIBUTE_GCC_CDIAG(m, n) __attribute__ ((__format__ (GCC_DIAG_STYLE, m ,n))) ATTRIBUTE_NONNULL(m) #else #define ATTRIBUTE_GCC_CDIAG(m, n) ATTRIBUTE_NONNULL(m)