diff --git a/test/CFrontend/2007-09-14-NegatePointer.c b/test/CFrontend/2007-09-14-NegatePointer.c
new file mode 100644
index 0000000..cb49e46
--- /dev/null
+++ b/test/CFrontend/2007-09-14-NegatePointer.c
@@ -0,0 +1,7 @@
+// RUN: %llvmgcc -S %s -o - 
+// PR1662
+
+int foo(unsigned char *test) {
+  return 0U - (unsigned int )test;
+}
+