@@ -11991,7 +11991,7 @@ warn_for_memset (location_t loc, tree arg0, tree arg2,
if (TREE_CODE (arg0) == ADDR_EXPR)
arg0 = TREE_OPERAND (arg0, 0);
tree type = TREE_TYPE (arg0);
- if (TREE_CODE (type) == ARRAY_TYPE)
+ if (type != NULL_TREE && TREE_CODE (type) == ARRAY_TYPE)
{
tree elt_type = TREE_TYPE (type);
tree domain = TYPE_DOMAIN (type);
@@ -0,0 +1,10 @@
+// PR c++/77321
+// { dg-do compile { target c++14 } }
+// { dg-options "-Wall" }
+
+template <typename>
+void foo (void)
+{
+ auto &a();
+ __builtin_memset(a, 'X', 4);
+}