diff --git a/test/CFrontend/2006-09-21-IncompleteElementType.c b/test/CFrontend/2006-09-21-IncompleteElementType.c
new file mode 100644
index 00000000000..1899f363e25
--- /dev/null
+++ b/test/CFrontend/2006-09-21-IncompleteElementType.c
@@ -0,0 +1,3 @@
+// RUN: %llvmgcc %s -S -o /dev/null 2>&1 | not grep 'internal compiler error'
+
+struct A X[(927 - 37) / sizeof(struct A)];