diff --git a/llvm/test/Regression/C++Frontend/2006-09-08-powi.cpp b/llvm/test/Regression/C++Frontend/2006-09-08-powi.cpp
new file mode 100644
index 000000000000..ceebc18104cd
--- /dev/null
+++ b/llvm/test/Regression/C++Frontend/2006-09-08-powi.cpp
@@ -0,0 +1,7 @@
+// RUN: llvm-g++ -O3 -S -o - %s
+
+#include <cmath>
+
+double foo(double X, int Y) {
+  return std::pow(X, Y);
+}