diff --git a/test/CFrontend/2004-02-12-LargeAggregateCopy.c.tr b/test/CFrontend/2004-02-12-LargeAggregateCopy.c.tr
new file mode 100644
index 00000000000..b3c9bcf3810
--- /dev/null
+++ b/test/CFrontend/2004-02-12-LargeAggregateCopy.c.tr
@@ -0,0 +1,8 @@
+// RUN: %llvmgcc -xc %s -c -o - | llvm-dis | grep llvm.memcpy
+
+struct X { int V[10000]; };
+struct X Global1, Global2;
+void test() {
+  Global2 = Global1;
+}
+