diff --git a/test/FrontendC++/2009-08-03-Varargs.cpp b/test/FrontendC++/2009-08-03-Varargs.cpp
new file mode 100644
index 00000000000..2e656f68543
--- /dev/null
+++ b/test/FrontendC++/2009-08-03-Varargs.cpp
@@ -0,0 +1,4 @@
+// RUN: %llvmgxx %s -S -emit-llvm -o - | grep _Z1az\(\.\.\.\)
+// PR4678
+void a(...) {
+}