[analyzer] Test variable modified types.

llvm-svn: 156664

clang/test/Analysis/test-variably-modified-types.c

@@ -0,0 +1,13 @@
+// RUN: %clang_cc1 -analyze -analyzer-checker=core -analyze-function=testVariablyModifiedTypes -verify %s
+
+// Test that we process variably modified type correctly - the call graph construction should pick up function_with_bug while recursively visiting test_variably_modifiable_types.
+unsigned getArraySize(int *x) {
+  if (!x)
+    return *x; // expected-warning {{Dereference of null pointer}}
+  return 1;
+}
+
+int testVariablyModifiedTypes(int *x) {
+  int mytype[getArraySize(x)];
+  return 0;
+}