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-rw-r--r--gcc/c-tree.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/gcc/c-tree.h b/gcc/c-tree.h
index b476534b024..353038b11e9 100644
--- a/gcc/c-tree.h
+++ b/gcc/c-tree.h
@@ -100,6 +100,17 @@ struct lang_type
TYPE_ARG_TYPES for functions with prototypes, but created for functions
without prototypes. */
#define TYPE_ACTUAL_ARG_TYPES(NODE) TYPE_NONCOPIED_PARTS (NODE)
+
+/* Nonzero if the type T promotes to itself.
+ ANSI C states explicitly the list of types that promote;
+ in particular, short promotes to int even if they have the same width. */
+#define C_PROMOTING_INTEGER_TYPE_P(t) \
+ (TREE_CODE ((t)) == INTEGER_TYPE \
+ && (TYPE_MAIN_VARIANT (t) == char_type_node \
+ || TYPE_MAIN_VARIANT (t) == signed_char_type_node \
+ || TYPE_MAIN_VARIANT (t) == unsigned_char_type_node \
+ || TYPE_MAIN_VARIANT (t) == short_integer_type_node \
+ || TYPE_MAIN_VARIANT (t) == short_unsigned_type_node))
/* in c-typecheck.c */
extern tree build_component_ref (), build_conditional_expr (), build_compound_expr ();