@@ -3743,7 +3743,15 @@ finish_id_expression (tree id_expression,
if (TREE_CODE (first_fn) == TEMPLATE_DECL)
first_fn = DECL_TEMPLATE_RESULT (first_fn);
- if (!really_overloaded_fn (decl)
+ /* [basic.def.odr]: "A function whose name appears as a
+ potentially-evaluated expression is odr-used if it is the unique
+ lookup result".
+
+ But only mark it if it's a complete postfix-expression; in a call,
+ ADL might select a different function, and we'll call mark_used in
+ build_over_call. */
+ if (done
+ && !really_overloaded_fn (decl)
&& !mark_used (first_fn))
return error_mark_node;
@@ -16,4 +16,4 @@
__attribute__((deprecated)) void foo (void); /* { dg-bogus "declared here" "" { xfail { c++ } } } */
-C (foo) /* { dg-bogus "is deprecated" "" { xfail { c++ } } } */
+C (foo) /* { dg-bogus "is deprecated" } */
new file mode 100644
@@ -0,0 +1,20 @@
+// PR c++/50308
+
+void A( int ) __attribute__((deprecated));
+
+namespace B {
+
+ struct C {};
+
+ void A(C) {}
+
+}
+
+int main ()
+{
+ B::C x;
+
+ // ADL correctly identifies the non-deprecated B::A, but a warning about the
+ // global A is generated anyway
+ A( x ); // { dg-bogus "deprecated" }
+}