637 lines
24 KiB
C
637 lines
24 KiB
C
/* Definitions for C parsing and type checking.
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Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998,
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1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011
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Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#ifndef GCC_C_TREE_H
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#define GCC_C_TREE_H
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#include "c-family/c-common.h"
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#include "diagnostic.h"
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/* struct lang_identifier is private to c-decl.c, but langhooks.c needs to
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know how big it is. This is sanity-checked in c-decl.c. */
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#define C_SIZEOF_STRUCT_LANG_IDENTIFIER \
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(sizeof (struct c_common_identifier) + 3 * sizeof (void *))
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/* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */
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#define C_TYPE_FIELDS_READONLY(TYPE) TREE_LANG_FLAG_1 (TYPE)
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/* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is volatile. */
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#define C_TYPE_FIELDS_VOLATILE(TYPE) TREE_LANG_FLAG_2 (TYPE)
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/* In a RECORD_TYPE or UNION_TYPE or ENUMERAL_TYPE
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nonzero if the definition of the type has already started. */
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#define C_TYPE_BEING_DEFINED(TYPE) TYPE_LANG_FLAG_0 (TYPE)
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/* In an incomplete RECORD_TYPE or UNION_TYPE, a list of variable
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declarations whose type would be completed by completing that type. */
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#define C_TYPE_INCOMPLETE_VARS(TYPE) TYPE_VFIELD (TYPE)
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/* In an IDENTIFIER_NODE, nonzero if this identifier is actually a
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keyword. C_RID_CODE (node) is then the RID_* value of the keyword,
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and C_RID_YYCODE is the token number wanted by Yacc. */
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#define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_0 (ID)
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/* Record whether a type or decl was written with nonconstant size.
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Note that TYPE_SIZE may have simplified to a constant. */
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#define C_TYPE_VARIABLE_SIZE(TYPE) TYPE_LANG_FLAG_1 (TYPE)
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#define C_DECL_VARIABLE_SIZE(TYPE) DECL_LANG_FLAG_0 (TYPE)
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/* Record whether a type is defined inside a struct or union type.
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This is used for -Wc++-compat. */
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#define C_TYPE_DEFINED_IN_STRUCT(TYPE) TYPE_LANG_FLAG_2 (TYPE)
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/* Record whether a typedef for type `int' was actually `signed int'. */
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#define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP)
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/* For a FUNCTION_DECL, nonzero if it was defined without an explicit
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return type. */
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#define C_FUNCTION_IMPLICIT_INT(EXP) DECL_LANG_FLAG_1 (EXP)
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/* For a FUNCTION_DECL, nonzero if it was an implicit declaration. */
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#define C_DECL_IMPLICIT(EXP) DECL_LANG_FLAG_2 (EXP)
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/* For FUNCTION_DECLs, evaluates true if the decl is built-in but has
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been declared. */
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#define C_DECL_DECLARED_BUILTIN(EXP) \
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DECL_LANG_FLAG_3 (FUNCTION_DECL_CHECK (EXP))
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/* For FUNCTION_DECLs, evaluates true if the decl is built-in, has a
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built-in prototype and does not have a non-built-in prototype. */
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#define C_DECL_BUILTIN_PROTOTYPE(EXP) \
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DECL_LANG_FLAG_6 (FUNCTION_DECL_CHECK (EXP))
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/* Record whether a decl was declared register. This is strictly a
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front-end flag, whereas DECL_REGISTER is used for code generation;
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they may differ for structures with volatile fields. */
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#define C_DECL_REGISTER(EXP) DECL_LANG_FLAG_4 (EXP)
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/* Record whether a decl was used in an expression anywhere except an
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unevaluated operand of sizeof / typeof / alignof. This is only
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used for functions declared static but not defined, though outside
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sizeof and typeof it is set for other function decls as well. */
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#define C_DECL_USED(EXP) DECL_LANG_FLAG_5 (FUNCTION_DECL_CHECK (EXP))
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/* Record whether a variable has been declared threadprivate by
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#pragma omp threadprivate. */
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#define C_DECL_THREADPRIVATE_P(DECL) DECL_LANG_FLAG_3 (VAR_DECL_CHECK (DECL))
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/* Nonzero for a decl which either doesn't exist or isn't a prototype.
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N.B. Could be simplified if all built-in decls had complete prototypes
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(but this is presently difficult because some of them need FILE*). */
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#define C_DECL_ISNT_PROTOTYPE(EXP) \
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(EXP == 0 \
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|| (!prototype_p (TREE_TYPE (EXP)) \
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&& !DECL_BUILT_IN (EXP)))
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/* For FUNCTION_TYPE, a hidden list of types of arguments. The same as
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TYPE_ARG_TYPES for functions with prototypes, but created for functions
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without prototypes. */
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#define TYPE_ACTUAL_ARG_TYPES(NODE) TYPE_LANG_SLOT_1 (NODE)
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/* For a CONSTRUCTOR, whether some initializer contains a
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subexpression meaning it is not a constant expression. */
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#define CONSTRUCTOR_NON_CONST(EXPR) TREE_LANG_FLAG_1 (CONSTRUCTOR_CHECK (EXPR))
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/* Record parser information about an expression that is irrelevant
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for code generation alongside a tree representing its value. */
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struct c_expr
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{
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/* The value of the expression. */
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tree value;
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/* Record the original unary/binary operator of an expression, which may
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have been changed by fold, STRING_CST for unparenthesized string
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constants, C_MAYBE_CONST_EXPR for __builtin_constant_p calls
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(even if parenthesized), for subexpressions, and for non-constant
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initializers, or ERROR_MARK for other expressions (including
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parenthesized expressions). */
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enum tree_code original_code;
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/* If not NULL, the original type of an expression. This will
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differ from the type of the value field for an enum constant.
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The type of an enum constant is a plain integer type, but this
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field will be the enum type. */
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tree original_type;
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};
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/* Type alias for struct c_expr. This allows to use the structure
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inside the VEC types. */
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typedef struct c_expr c_expr_t;
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/* A varray of c_expr_t. */
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DEF_VEC_O (c_expr_t);
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DEF_VEC_ALLOC_O (c_expr_t, gc);
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DEF_VEC_ALLOC_O (c_expr_t, heap);
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/* Append a new c_expr_t element to V. */
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#define C_EXPR_APPEND(V, ELEM) \
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do { \
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c_expr_t *__elem_p = VEC_safe_push (c_expr_t, gc, V, NULL); \
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*__elem_p = (ELEM); \
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} while (0)
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/* A kind of type specifier. Note that this information is currently
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only used to distinguish tag definitions, tag references and typeof
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uses. */
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enum c_typespec_kind {
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/* No typespec. This appears only in struct c_declspec. */
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ctsk_none,
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/* A reserved keyword type specifier. */
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ctsk_resword,
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/* A reference to a tag, previously declared, such as "struct foo".
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This includes where the previous declaration was as a different
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kind of tag, in which case this is only valid if shadowing that
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tag in an inner scope. */
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ctsk_tagref,
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/* A reference to a tag, not previously declared in a visible
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scope. */
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ctsk_tagfirstref,
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/* A definition of a tag such as "struct foo { int a; }". */
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ctsk_tagdef,
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/* A typedef name. */
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ctsk_typedef,
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/* An ObjC-specific kind of type specifier. */
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ctsk_objc,
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/* A typeof specifier. */
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ctsk_typeof
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};
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/* A type specifier: this structure is created in the parser and
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passed to declspecs_add_type only. */
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struct c_typespec {
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/* What kind of type specifier this is. */
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enum c_typespec_kind kind;
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/* Whether the expression has operands suitable for use in constant
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expressions. */
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bool expr_const_operands;
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/* The specifier itself. */
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tree spec;
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/* An expression to be evaluated before the type specifier, in the
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case of typeof specifiers, or NULL otherwise or if no such
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expression is required for a particular typeof specifier. In
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particular, when typeof is applied to an expression of variably
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modified type, that expression must be evaluated in order to
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determine array sizes that form part of the type, but the
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expression itself (as opposed to the array sizes) forms no part
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of the type and so needs to be recorded separately. */
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tree expr;
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};
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/* A storage class specifier. */
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enum c_storage_class {
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csc_none,
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csc_auto,
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csc_extern,
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csc_register,
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csc_static,
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csc_typedef
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};
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/* A type specifier keyword "void", "_Bool", "char", "int", "float",
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"double", "_Decimal32", "_Decimal64", "_Decimal128", "_Fract", "_Accum",
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or none of these. */
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enum c_typespec_keyword {
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cts_none,
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cts_void,
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cts_bool,
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cts_char,
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cts_int,
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cts_float,
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cts_int128,
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cts_double,
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cts_dfloat32,
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cts_dfloat64,
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cts_dfloat128,
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cts_fract,
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cts_accum
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};
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/* A sequence of declaration specifiers in C. */
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struct c_declspecs {
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/* The type specified, if a single type specifier such as a struct,
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union or enum specifier, typedef name or typeof specifies the
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whole type, or NULL_TREE if none or a keyword such as "void" or
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"char" is used. Does not include qualifiers. */
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tree type;
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/* Any expression to be evaluated before the type, from a typeof
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specifier. */
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tree expr;
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/* The attributes from a typedef decl. */
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tree decl_attr;
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/* When parsing, the attributes. Outside the parser, this will be
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NULL; attributes (possibly from multiple lists) will be passed
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separately. */
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tree attrs;
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/* The base-2 log of the greatest alignment required by an _Alignas
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specifier, in bytes, or -1 if no such specifiers with nonzero
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alignment. */
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int align_log;
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/* The storage class specifier, or csc_none if none. */
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enum c_storage_class storage_class;
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/* Any type specifier keyword used such as "int", not reflecting
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modifiers such as "short", or cts_none if none. */
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ENUM_BITFIELD (c_typespec_keyword) typespec_word : 8;
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/* The kind of type specifier if one has been seen, ctsk_none
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otherwise. */
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ENUM_BITFIELD (c_typespec_kind) typespec_kind : 3;
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/* Whether any expressions in typeof specifiers may appear in
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constant expressions. */
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BOOL_BITFIELD expr_const_operands : 1;
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/* Whether any declaration specifiers have been seen at all. */
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BOOL_BITFIELD declspecs_seen_p : 1;
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/* Whether something other than a storage class specifier or
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attribute has been seen. This is used to warn for the
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obsolescent usage of storage class specifiers other than at the
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start of the list. (Doing this properly would require function
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specifiers to be handled separately from storage class
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specifiers.) */
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BOOL_BITFIELD non_sc_seen_p : 1;
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/* Whether the type is specified by a typedef or typeof name. */
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BOOL_BITFIELD typedef_p : 1;
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/* Whether the type is explicitly "signed" or specified by a typedef
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whose type is explicitly "signed". */
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BOOL_BITFIELD explicit_signed_p : 1;
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/* Whether the specifiers include a deprecated typedef. */
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BOOL_BITFIELD deprecated_p : 1;
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/* Whether the type defaulted to "int" because there were no type
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specifiers. */
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BOOL_BITFIELD default_int_p : 1;
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/* Whether "long" was specified. */
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BOOL_BITFIELD long_p : 1;
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/* Whether "long" was specified more than once. */
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BOOL_BITFIELD long_long_p : 1;
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/* Whether "short" was specified. */
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BOOL_BITFIELD short_p : 1;
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/* Whether "signed" was specified. */
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BOOL_BITFIELD signed_p : 1;
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/* Whether "unsigned" was specified. */
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BOOL_BITFIELD unsigned_p : 1;
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/* Whether "complex" was specified. */
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BOOL_BITFIELD complex_p : 1;
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/* Whether "inline" was specified. */
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BOOL_BITFIELD inline_p : 1;
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/* Whether "_Noreturn" was speciied. */
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BOOL_BITFIELD noreturn_p : 1;
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/* Whether "__thread" was specified. */
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BOOL_BITFIELD thread_p : 1;
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/* Whether "const" was specified. */
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BOOL_BITFIELD const_p : 1;
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/* Whether "volatile" was specified. */
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BOOL_BITFIELD volatile_p : 1;
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/* Whether "restrict" was specified. */
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BOOL_BITFIELD restrict_p : 1;
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/* Whether "_Sat" was specified. */
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BOOL_BITFIELD saturating_p : 1;
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/* Whether any alignment specifier (even with zero alignment) was
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specified. */
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BOOL_BITFIELD alignas_p : 1;
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/* The address space that the declaration belongs to. */
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addr_space_t address_space;
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};
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/* The various kinds of declarators in C. */
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enum c_declarator_kind {
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/* An identifier. */
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cdk_id,
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/* A function. */
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cdk_function,
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/* An array. */
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cdk_array,
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/* A pointer. */
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cdk_pointer,
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/* Parenthesized declarator with nested attributes. */
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cdk_attrs
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};
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typedef struct c_arg_tag_d {
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/* The argument name. */
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tree id;
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/* The type of the argument. */
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tree type;
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} c_arg_tag;
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DEF_VEC_O(c_arg_tag);
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DEF_VEC_ALLOC_O(c_arg_tag,gc);
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/* Information about the parameters in a function declarator. */
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struct c_arg_info {
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/* A list of parameter decls. */
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tree parms;
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/* A list of structure, union and enum tags defined. */
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VEC(c_arg_tag,gc) *tags;
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/* A list of argument types to go in the FUNCTION_TYPE. */
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tree types;
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/* A list of non-parameter decls (notably enumeration constants)
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defined with the parameters. */
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tree others;
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/* A compound expression of VLA sizes from the parameters, or NULL.
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In a function definition, these are used to ensure that
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side-effects in sizes of arrays converted to pointers (such as a
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parameter int i[n++]) take place; otherwise, they are
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ignored. */
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tree pending_sizes;
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/* True when these arguments had [*]. */
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BOOL_BITFIELD had_vla_unspec : 1;
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};
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/* A declarator. */
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struct c_declarator {
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/* The kind of declarator. */
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enum c_declarator_kind kind;
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location_t id_loc; /* Currently only set for cdk_id, cdk_array. */
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/* Except for cdk_id, the contained declarator. For cdk_id, NULL. */
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struct c_declarator *declarator;
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union {
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/* For identifiers, an IDENTIFIER_NODE or NULL_TREE if an abstract
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declarator. */
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tree id;
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/* For functions. */
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struct c_arg_info *arg_info;
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/* For arrays. */
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struct {
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/* The array dimension, or NULL for [] and [*]. */
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tree dimen;
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/* The qualifiers inside []. */
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int quals;
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/* The attributes (currently ignored) inside []. */
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tree attrs;
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/* Whether [static] was used. */
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BOOL_BITFIELD static_p : 1;
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/* Whether [*] was used. */
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BOOL_BITFIELD vla_unspec_p : 1;
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} array;
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/* For pointers, the qualifiers on the pointer type. */
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int pointer_quals;
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/* For attributes. */
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tree attrs;
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} u;
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};
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/* A type name. */
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struct c_type_name {
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/* The declaration specifiers. */
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struct c_declspecs *specs;
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/* The declarator. */
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struct c_declarator *declarator;
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};
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/* A parameter. */
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struct c_parm {
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/* The declaration specifiers, minus any prefix attributes. */
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struct c_declspecs *specs;
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/* The attributes. */
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tree attrs;
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/* The declarator. */
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struct c_declarator *declarator;
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};
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/* Used when parsing an enum. Initialized by start_enum. */
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struct c_enum_contents
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{
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/* While defining an enum type, this is 1 plus the last enumerator
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constant value. */
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tree enum_next_value;
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/* Nonzero means that there was overflow computing enum_next_value. */
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int enum_overflow;
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};
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/* A type of reference to a static identifier in an inline
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function. */
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enum c_inline_static_type {
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/* Identifier with internal linkage used in function that may be an
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inline definition (i.e., file-scope static). */
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csi_internal,
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/* Modifiable object with static storage duration defined in
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function that may be an inline definition (i.e., local
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static). */
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csi_modifiable
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};
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/* in c-parser.c */
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extern void c_parse_init (void);
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/* in c-aux-info.c */
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extern void gen_aux_info_record (tree, int, int, int);
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/* in c-decl.c */
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struct c_spot_bindings;
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struct c_struct_parse_info;
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extern struct obstack parser_obstack;
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extern tree c_break_label;
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extern tree c_cont_label;
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extern bool global_bindings_p (void);
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extern void push_scope (void);
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extern tree pop_scope (void);
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extern void c_bindings_start_stmt_expr (struct c_spot_bindings *);
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extern void c_bindings_end_stmt_expr (struct c_spot_bindings *);
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extern void record_inline_static (location_t, tree, tree,
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enum c_inline_static_type);
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extern void c_init_decl_processing (void);
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extern void c_print_identifier (FILE *, tree, int);
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extern int quals_from_declspecs (const struct c_declspecs *);
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extern struct c_declarator *build_array_declarator (location_t, tree,
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struct c_declspecs *,
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bool, bool);
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extern tree build_enumerator (location_t, location_t, struct c_enum_contents *,
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tree, tree);
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extern tree check_for_loop_decls (location_t, bool);
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extern void mark_forward_parm_decls (void);
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extern void declare_parm_level (void);
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extern void undeclared_variable (location_t, tree);
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extern tree lookup_label_for_goto (location_t, tree);
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extern tree declare_label (tree);
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extern tree define_label (location_t, tree);
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extern struct c_spot_bindings *c_get_switch_bindings (void);
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extern void c_release_switch_bindings (struct c_spot_bindings *);
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extern bool c_check_switch_jump_warnings (struct c_spot_bindings *,
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location_t, location_t);
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extern void finish_decl (tree, location_t, tree, tree, tree);
|
||
extern tree finish_enum (tree, tree, tree);
|
||
extern void finish_function (void);
|
||
extern tree finish_struct (location_t, tree, tree, tree,
|
||
struct c_struct_parse_info *);
|
||
extern struct c_arg_info *build_arg_info (void);
|
||
extern struct c_arg_info *get_parm_info (bool, tree);
|
||
extern tree grokfield (location_t, struct c_declarator *,
|
||
struct c_declspecs *, tree, tree *);
|
||
extern tree groktypename (struct c_type_name *, tree *, bool *);
|
||
extern tree grokparm (const struct c_parm *, tree *);
|
||
extern tree implicitly_declare (location_t, tree);
|
||
extern void keep_next_level (void);
|
||
extern void pending_xref_error (void);
|
||
extern void c_push_function_context (void);
|
||
extern void c_pop_function_context (void);
|
||
extern void push_parm_decl (const struct c_parm *, tree *);
|
||
extern struct c_declarator *set_array_declarator_inner (struct c_declarator *,
|
||
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 (location_t, 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);
|
||
extern tree start_struct (location_t, enum tree_code, tree,
|
||
struct c_struct_parse_info **);
|
||
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 (location_t, enum tree_code, tree);
|
||
extern int c_expand_decl (tree);
|
||
extern struct c_parm *build_c_parm (struct c_declspecs *, tree,
|
||
struct c_declarator *);
|
||
extern struct c_declarator *build_attrs_declarator (tree,
|
||
struct c_declarator *);
|
||
extern struct c_declarator *build_function_declarator (struct c_arg_info *,
|
||
struct c_declarator *);
|
||
extern struct c_declarator *build_id_declarator (tree);
|
||
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 (location_t,
|
||
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 *declspecs_add_addrspace (struct c_declspecs *,
|
||
addr_space_t);
|
||
extern struct c_declspecs *declspecs_add_alignas (struct c_declspecs *, tree);
|
||
extern struct c_declspecs *finish_declspecs (struct c_declspecs *);
|
||
|
||
/* in c-objc-common.c */
|
||
extern bool c_objc_common_init (void);
|
||
extern bool c_missing_noreturn_ok_p (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);
|
||
|
||
/* in c-typeck.c */
|
||
extern int in_alignof;
|
||
extern int in_sizeof;
|
||
extern int in_typeof;
|
||
|
||
extern struct c_switch *c_switch_stack;
|
||
|
||
extern tree c_objc_common_truthvalue_conversion (location_t, tree);
|
||
extern tree require_complete_type (tree);
|
||
extern int same_translation_unit_p (const_tree, const_tree);
|
||
extern int comptypes (tree, tree);
|
||
extern int comptypes_check_different_types (tree, tree, bool *);
|
||
extern bool c_vla_type_p (const_tree);
|
||
extern bool c_mark_addressable (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 (location_t,
|
||
struct c_expr);
|
||
extern struct c_expr default_function_array_read_conversion (location_t,
|
||
struct c_expr);
|
||
extern void mark_exp_read (tree);
|
||
extern tree composite_type (tree, tree);
|
||
extern tree build_component_ref (location_t, tree, tree);
|
||
extern tree build_array_ref (location_t, tree, tree);
|
||
extern tree build_external_ref (location_t, tree, int, tree *);
|
||
extern void pop_maybe_used (bool);
|
||
extern struct c_expr c_expr_sizeof_expr (location_t, struct c_expr);
|
||
extern struct c_expr c_expr_sizeof_type (location_t, struct c_type_name *);
|
||
extern struct c_expr parser_build_unary_op (location_t, enum tree_code,
|
||
struct c_expr);
|
||
extern struct c_expr parser_build_binary_op (location_t,
|
||
enum tree_code, struct c_expr,
|
||
struct c_expr);
|
||
extern tree build_conditional_expr (location_t, tree, bool, tree, tree,
|
||
tree, tree);
|
||
extern tree build_compound_expr (location_t, tree, tree);
|
||
extern tree c_cast_expr (location_t, struct c_type_name *, tree);
|
||
extern tree build_c_cast (location_t, tree, tree);
|
||
extern void store_init_value (location_t, tree, tree, tree);
|
||
extern void error_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);
|
||
extern void really_start_incremental_init (tree);
|
||
extern void push_init_level (int, struct obstack *);
|
||
extern struct c_expr pop_init_level (int, struct obstack *);
|
||
extern void set_init_index (tree, tree, struct obstack *);
|
||
extern void set_init_label (tree, struct obstack *);
|
||
extern void process_init_element (struct c_expr, bool, struct obstack *);
|
||
extern tree build_compound_literal (location_t, tree, tree, bool);
|
||
extern void check_compound_literal_type (location_t, struct c_type_name *);
|
||
extern tree c_start_case (location_t, location_t, tree);
|
||
extern void c_finish_case (tree);
|
||
extern tree build_asm_expr (location_t, tree, tree, tree, tree, tree, bool);
|
||
extern tree build_asm_stmt (tree, tree);
|
||
extern int c_types_compatible_p (tree, tree);
|
||
extern tree c_begin_compound_stmt (bool);
|
||
extern tree c_end_compound_stmt (location_t, tree, bool);
|
||
extern void c_finish_if_stmt (location_t, tree, tree, tree, bool);
|
||
extern void c_finish_loop (location_t, tree, tree, tree, tree, tree, bool);
|
||
extern tree c_begin_stmt_expr (void);
|
||
extern tree c_finish_stmt_expr (location_t, tree);
|
||
extern tree c_process_expr_stmt (location_t, tree);
|
||
extern tree c_finish_expr_stmt (location_t, tree);
|
||
extern tree c_finish_return (location_t, tree, tree);
|
||
extern tree c_finish_bc_stmt (location_t, tree *, bool);
|
||
extern tree c_finish_goto_label (location_t, tree);
|
||
extern tree c_finish_goto_ptr (location_t, tree);
|
||
extern tree c_expr_to_decl (tree, bool *, bool *);
|
||
extern tree c_begin_omp_parallel (void);
|
||
extern tree c_finish_omp_parallel (location_t, tree, tree);
|
||
extern tree c_begin_omp_task (void);
|
||
extern tree c_finish_omp_task (location_t, tree, tree);
|
||
extern tree c_finish_omp_clauses (tree);
|
||
extern tree c_build_va_arg (location_t, tree, tree);
|
||
extern tree c_finish_transaction (location_t, tree, int);
|
||
extern tree c_build_vec_perm_expr (location_t, tree, tree, tree);
|
||
|
||
/* Set to 0 at beginning of a function definition, set to 1 if
|
||
a return statement that specifies a return value is seen. */
|
||
|
||
extern int current_function_returns_value;
|
||
|
||
/* Set to 0 at beginning of a function definition, set to 1 if
|
||
a return statement with no argument is seen. */
|
||
|
||
extern int current_function_returns_null;
|
||
|
||
/* Set to 0 at beginning of a function definition, set to 1 if
|
||
a call to a noreturn function is seen. */
|
||
|
||
extern int current_function_returns_abnormally;
|
||
|
||
/* Nonzero means we are reading code that came from a system header file. */
|
||
|
||
extern int system_header_p;
|
||
|
||
/* In c-decl.c */
|
||
extern void c_finish_incomplete_decl (tree);
|
||
extern void c_write_global_declarations (void);
|
||
|
||
/* In c-errors.c */
|
||
extern void pedwarn_c90 (location_t, int opt, const char *, ...) ATTRIBUTE_GCC_DIAG(3,4);
|
||
extern void pedwarn_c99 (location_t, int opt, const char *, ...) ATTRIBUTE_GCC_DIAG(3,4);
|
||
|
||
#endif /* ! GCC_C_TREE_H */
|