Add test for PR4678


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78040 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/FrontendC++/2009-08-03-Varargs.cpp b/test/FrontendC++/2009-08-03-Varargs.cpp
new file mode 100644
index 0000000..2e656f6
--- /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(...) {
+}