diff --git a/llvm/test/CFrontend/2007-02-16-VariableSizeStructArg.c b/llvm/test/CFrontend/2007-02-16-VariableSizeStructArg.c
new file mode 100644
index 000000000000..fd07cd8176f5
--- /dev/null
+++ b/llvm/test/CFrontend/2007-02-16-VariableSizeStructArg.c
@@ -0,0 +1,7 @@
+// RUN: %llvmgcc -S %s -o - 
+// PR1170
+int f(int a, struct {int b[a];} c) {  return c.b[0]; }
+
+int g(struct {int b[1];} c) {
+  return c.b[0];
+}