1 files changed, 50 insertions, 0 deletions
diff --git a/tools/clang-tidy/test/clang-analyzer-cplusplus.NewDelete.cpp b/tools/clang-tidy/test/clang-analyzer-cplusplus.NewDelete.cpp
new file mode 100644
index 0000000000..d886d74989
--- /dev/null
+++ b/tools/clang-tidy/test/clang-analyzer-cplusplus.NewDelete.cpp
@@ -0,0 +1,50 @@
+// https://clang-analyzer.llvm.org/available_checks.html
+
+void use(int *p);
+
+void test_use_parameter_after_delete(int *p)
+{
+  delete p;
+  use(p); // warning: use after free
+}
+
+class SomeClass {
+public:
+  void f();
+};
+
+void test_use_local_after_delete()
+{
+  SomeClass *c = new SomeClass;
+  delete c;
+  c->f(); // warning: use after free
+}
+
+// XXX clang documentation says this should cause a warning but it doesn't!
+void test_delete_alloca()
+{
+  int *p = (int *)__builtin_alloca(sizeof(int));
+  delete p; // NO warning: deleting memory allocated by alloca
+}
+
+void test_double_free()
+{
+  int *p = new int;
+  delete p;
+  delete p; // warning: attempt to free released
+}
+
+void test_delete_local()
+{
+  int i;
+  delete &i; // warning: delete address of local
+}
+
+// XXX clang documentation says this should cause a warning but it doesn't!
+void test_delete_offset()
+{
+  int *p = new int[1];
+  delete[] (++p);
+    // NO warning: argument to 'delete[]' is offset by 4 bytes
+    // from the start of memory allocated by 'new[]'
+}