diff options
Diffstat (limited to 'gcc/c/c-tree.h')
| -rw-r--r-- | gcc/c/c-tree.h | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/gcc/c/c-tree.h b/gcc/c/c-tree.h index e7cdd2f..d787dd4 100644 --- a/gcc/c/c-tree.h +++ b/gcc/c/c-tree.h @@ -122,6 +122,14 @@ along with GCC; see the file COPYING3. If not see been folded. */ #define SAVE_EXPR_FOLDED_P(EXP) TREE_LANG_FLAG_1 (SAVE_EXPR_CHECK (EXP)) +/* Whether a type has boolean semantics: either a boolean type or an + enumeration type with a boolean type as its underlying type. */ +#define C_BOOLEAN_TYPE_P(TYPE) \ + (TREE_CODE (TYPE) == BOOLEAN_TYPE \ + || (TREE_CODE (TYPE) == ENUMERAL_TYPE \ + && ENUM_UNDERLYING_TYPE (TYPE) != NULL_TREE \ + && TREE_CODE (ENUM_UNDERLYING_TYPE (TYPE)) == BOOLEAN_TYPE)) + /* Record parser information about an expression that is irrelevant for code generation alongside a tree representing its value. */ struct c_expr @@ -216,6 +224,10 @@ struct c_typespec { /* Whether the expression has operands suitable for use in constant expressions. */ bool expr_const_operands; + /* Whether the type specifier includes an enum type specifier (that + is, ": specifier-qualifier-list" in a declaration using + "enum"). */ + bool has_enum_type_specifier; /* The specifier itself. */ tree spec; /* An expression to be evaluated before the type specifier, in the @@ -412,6 +424,12 @@ struct c_declspecs { /* Whether any alignment specifier (even with zero alignment) was specified. */ BOOL_BITFIELD alignas_p : 1; + /* Whether an enum type specifier (": specifier-qualifier-list") was + specified other than in a definition of that enum (if so, this is + invalid unless it is an empty declaration "enum identifier + enum-type-specifier;", but such an empty declaration is valid in + C2x when "enum identifier;" would not be). */ + BOOL_BITFIELD enum_type_specifier_ref_p : 1; /* The address space that the declaration belongs to. */ addr_space_t address_space; }; @@ -525,6 +543,9 @@ struct c_enum_contents constant value. */ tree enum_next_value; + /* The enumeration type itself. */ + tree enum_type; + /* Nonzero means that there was overflow computing enum_next_value. */ int enum_overflow; }; @@ -625,7 +646,7 @@ extern void c_warn_unused_attributes (tree); extern tree c_warn_type_attributes (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 tree start_enum (location_t, struct c_enum_contents *, tree, tree); extern bool start_function (struct c_declspecs *, struct c_declarator *, tree); extern tree start_decl (struct c_declarator *, struct c_declspecs *, bool, tree, location_t * = NULL); @@ -637,7 +658,7 @@ extern void temp_store_parm_decls (tree, tree); extern void temp_pop_parm_decls (void); extern tree xref_tag (enum tree_code, tree); extern struct c_typespec parser_xref_tag (location_t, enum tree_code, tree, - bool, tree); + bool, tree, bool); extern struct c_parm *build_c_parm (struct c_declspecs *, tree, struct c_declarator *, location_t); extern struct c_declarator *build_attrs_declarator (tree, |