1 files changed, 9 insertions, 0 deletions
diff --git a/clang/test/SemaCXX/atomic-ops.cpp b/clang/test/SemaCXX/atomic-ops.cpp
new file mode 100644
index 00000000000..213161364f5
--- /dev/null
+++ b/clang/test/SemaCXX/atomic-ops.cpp
@@ -0,0 +1,9 @@
+// RUN: %clang_cc1 %s -verify -fsyntax-only -triple=i686-linux-gnu -std=c++11
+
+// We crashed when we couldn't properly convert the first arg of __atomic_* to
+// an lvalue.
+void PR28623() {
+  void helper(int); // expected-note{{target}}
+  void helper(char); // expected-note{{target}}
+  __atomic_store_n(helper, 0, 0); // expected-error{{reference to overloaded function could not be resolved}}
+}