1 files changed, 7 insertions, 0 deletions
diff --git a/clang/test/CodeGen/catch-undef-behavior.c b/clang/test/CodeGen/catch-undef-behavior.c
new file mode 100644
index 00000000000..b7a4a90347d
--- /dev/null
+++ b/clang/test/CodeGen/catch-undef-behavior.c
@@ -0,0 +1,7 @@
+// RUN: %clang_cc1 -triple i386-apple-darwin9 -emit-llvm -o /dev/null %s
+
+// PR6805
+void foo() {
+  union { int i; } u;
+  u.i=1;
+}