X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Fc-tree.h;h=b7430af4b08f8fc011dafe3752b0f8beebcfc858;hb=28519aa935dfaeec125104b8206a203f227211a3;hp=18d200fb5921cd04e9cc62acab58614cb4c8c5ba;hpb=19702c1d34daddd799073407407ff47a44d0084c;p=pf3gnuchains%2Fgcc-fork.git diff --git a/gcc/c-tree.h b/gcc/c-tree.h index 18d200fb592..b7430af4b08 100644 --- a/gcc/c-tree.h +++ b/gcc/c-tree.h @@ -1,12 +1,12 @@ /* 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, 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 @@ -15,14 +15,14 @@ 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_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 +30,11 @@ 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 +63,10 @@ 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 +86,13 @@ 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 +103,34 @@ 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 @@ -124,8 +151,8 @@ 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 + /* Record the original unary/binary operator of an expression, which may + 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; @@ -175,7 +202,8 @@ enum c_storage_class { }; /* A type specifier keyword "void", "_Bool", "char", "int", "float", - "double", or none of these. */ + "double", "_Decimal32", "_Decimal64", "_Decimal128", "_Fract", "_Accum", + or none of these. */ enum c_typespec_keyword { cts_none, cts_void, @@ -183,7 +211,12 @@ enum c_typespec_keyword { cts_char, cts_int, cts_float, - cts_double + cts_double, + cts_dfloat32, + cts_dfloat64, + cts_dfloat128, + cts_fract, + cts_accum }; /* A sequence of declaration specifiers in C. */ @@ -204,6 +237,10 @@ 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 @@ -247,6 +284,8 @@ struct c_declspecs { BOOL_BITFIELD volatile_p : 1; /* Whether "restrict" was specified. */ BOOL_BITFIELD restrict_p : 1; + /* Whether "_Sat" was specified. */ + BOOL_BITFIELD saturating_p : 1; }; /* The various kinds of declarators in C. */ @@ -274,6 +313,13 @@ struct c_arg_info { /* A list of non-parameter decls (notably enumeration constants) defined with the parameters. */ tree others; + /* A list of VLA sizes from the parameters. In a function + definition, these are used to ensure that side-effects in sizes + of arrays converted to pointers (such as a parameter int i[n++]) + take place; otherwise, they are ignored. */ + tree pending_sizes; + /* True when these arguments had [*]. */ + BOOL_BITFIELD had_vla_unspec : 1; }; /* A declarator. */ @@ -282,6 +328,7 @@ 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. */ @@ -341,11 +388,60 @@ struct language_function GTY(()) int returns_null; int returns_abnormally; int warn_about_return_type; - 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; +}; + +/* Used when parsing an enum. Initialized by start_enum. */ +struct c_enum_contents +{ + /* While defining an enum type, this is 1 plus the last enumerator + constant value. */ + tree enum_next_value; + + /* Nonzero means that there was overflow computing enum_next_value. */ + int enum_overflow; }; -/* in c-parse.in */ +/* in c-parser.c */ extern void c_parse_init (void); /* in c-aux-info.c */ @@ -359,9 +455,6 @@ extern tree c_cont_label; 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); extern void c_dup_lang_specific_decl (tree); @@ -369,38 +462,36 @@ extern void c_print_identifier (FILE *, tree, int); 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 build_enumerator (struct c_enum_contents *, tree, tree, location_t); +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 c_maybe_initialize_eh (void); extern void finish_decl (tree, tree, tree); extern tree finish_enum (tree, tree, tree); extern void finish_function (void); extern tree finish_struct (tree, tree, tree); extern struct c_arg_info *get_parm_info (bool); -extern tree grokfield (struct c_declarator *, struct c_declspecs *, tree); +extern tree grokfield (location_t, struct c_declarator *, + struct c_declspecs *, tree, tree *); 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 c_push_function_context (void); +extern void c_pop_function_context (void); 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); -extern tree builtin_function (const char *, tree, int, enum built_in_class, - const char *, tree); + struct c_declarator *); +extern tree c_builtin_function (tree); +extern tree c_builtin_function_ext_scope (tree); extern void shadow_tag (const struct c_declspecs *); extern void shadow_tag_warned (const struct c_declspecs *, int); -extern tree start_enum (tree); +extern tree start_enum (struct c_enum_contents *, tree); extern int start_function (struct c_declspecs *, struct c_declarator *, tree); extern tree start_decl (struct c_declarator *, struct c_declspecs *, bool, tree); @@ -428,14 +519,11 @@ extern struct c_declspecs *declspecs_add_attrs (struct c_declspecs *, tree); extern struct c_declspecs *finish_declspecs (struct c_declspecs *); /* in c-objc-common.c */ -extern int c_disregard_inline_limits (tree); -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 bool c_warn_unused_global_decl (const_tree); extern void c_initialize_diagnostics (diagnostic_context *); +extern bool c_vla_unspec_p (tree x, tree fn); #define c_build_type_variant(TYPE, CONST_P, VOLATILE_P) \ c_build_qualified_type ((TYPE), \ @@ -448,33 +536,37 @@ 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 c_objc_common_truthvalue_conversion (location_t, tree); extern tree require_complete_type (tree); -extern int same_translation_unit_p (tree, tree); +extern int same_translation_unit_p (const_tree, const_tree); extern int comptypes (tree, tree); -extern tree c_size_in_bytes (tree); +extern bool c_vla_type_p (const_tree); extern bool c_mark_addressable (tree); -extern void c_incomplete_type_error (tree, tree); +extern void c_incomplete_type_error (const_tree, const_tree); extern tree c_type_promotes_to (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_array_ref (tree, tree, location_t); +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_binary_op (enum tree_code, struct c_expr, +extern struct c_expr parser_build_unary_op (enum tree_code, struct c_expr, + location_t); +extern struct c_expr parser_build_binary_op (location_t, + 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 *); +extern void pedwarn_init (location_t, int opt, const char *); extern void maybe_warn_string_init (tree, struct c_expr); extern void start_init (tree, tree, int); extern void finish_init (void); @@ -489,7 +581,6 @@ extern tree c_start_case (tree); extern void c_finish_case (tree); extern tree build_asm_expr (tree, tree, tree, tree, bool); extern tree build_asm_stmt (tree, tree); -extern tree c_convert_parm_for_inlining (tree, tree, tree, int); extern int c_types_compatible_p (tree, tree); extern tree c_begin_compound_stmt (bool); extern tree c_end_compound_stmt (tree, bool); @@ -503,6 +594,14 @@ 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 *); +extern tree c_begin_omp_parallel (void); +extern tree c_finish_omp_parallel (tree, tree); +extern tree c_begin_omp_task (void); +extern tree c_finish_omp_task (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. */ @@ -538,14 +637,13 @@ 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) #endif -extern void pedwarn_c90 (const char *, ...) ATTRIBUTE_GCC_CDIAG(1,2); -extern void pedwarn_c99 (const char *, ...) ATTRIBUTE_GCC_CDIAG(1,2); +extern void pedwarn_c90 (location_t, int opt, const char *, ...) ATTRIBUTE_GCC_CDIAG(3,4); +extern void pedwarn_c99 (location_t, int opt, const char *, ...) ATTRIBUTE_GCC_CDIAG(3,4); #endif /* ! GCC_C_TREE_H */