diff options
Diffstat (limited to 'gcc/tree.h')
| -rw-r--r-- | gcc/tree.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/gcc/tree.h b/gcc/tree.h index 62b31687490..be62730706b 100644 --- a/gcc/tree.h +++ b/gcc/tree.h @@ -776,6 +776,18 @@ struct tree_block #define TYPE_OBSTACK(NODE) (TYPE_CHECK (NODE)->type.obstack) #define TYPE_LANG_SPECIFIC(NODE) (TYPE_CHECK (NODE)->type.lang_specific) +/* The (language-specific) typed-based alias set for this type. + Objects whose TYPE_ALIAS_SETs are different cannot alias each + other. If the TYPE_ALIAS_SET is -1, no alias set has yet been + assigned to this type. If the TYPE_ALIAS_SET is 0, objects of this + type can alias objects of any type. */ +#define TYPE_ALIAS_SET(NODE) (TYPE_CHECK (NODE)->type.alias_set) + +/* Nonzero iff the typed-based alias set for this type has been + calculated. */ +#define TYPE_ALIAS_SET_KNOWN_P(NODE) \ + (TYPE_CHECK (NODE)->type.alias_set != -1) + /* A TREE_LIST of IDENTIFIER nodes of the attributes that apply to this type. */ #define TYPE_ATTRIBUTES(NODE) (TYPE_CHECK (NODE)->type.attributes) @@ -870,6 +882,7 @@ struct tree_type union tree_node *noncopied_parts; union tree_node *context; struct obstack *obstack; + int alias_set; /* Points to a structure whose details depend on the language in use. */ struct lang_type *lang_specific; }; @@ -1811,6 +1824,8 @@ extern tree get_file_function_name PROTO((int)); extern tree get_set_constructor_bits PROTO((tree, char *, int)); extern tree get_set_constructor_bytes PROTO((tree, unsigned char *, int)); +extern int get_alias_set PROTO((tree)); +extern int (*lang_get_alias_set) PROTO((tree)); /* In stmt.c */ |
