[analyzer] Test case for r154451 (redefining system functions).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154624 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Analysis/redefined_system.c b/test/Analysis/redefined_system.c
new file mode 100644 (file)
index 0000000..3f585c4
--- /dev/null
+++ b/test/Analysis/redefined_system.c
@@ -0,0 +1,17 @@
+// RUN: %clang_cc1 -analyze -analyzer-checker=unix,core,experimental.security.taint -w -verify %s
+
+// Make sure we don't crash when someone redefines a system function we reason about.
+
+char memmove ();
+char malloc();
+char system();
+char stdin();
+char memccpy();
+char free();
+char strdup();
+char atoi();
+
+int foo () {
+  return memmove() + malloc() + system + stdin() + memccpy() + free() + strdup() + atoi();
+
+}