1 files changed, 38 insertions, 0 deletions
diff --git a/test/ubsan/TestCases/TypeCheck/null.cpp b/test/ubsan/TestCases/TypeCheck/null.cpp
new file mode 100644
index 000000000000..2a90f7fb956b
--- /dev/null
+++ b/test/ubsan/TestCases/TypeCheck/null.cpp
@@ -0,0 +1,38 @@
+// RUN: %clangxx -fsanitize=null %s -O3 -o %t
+// RUN: %run %t l 2>&1 | FileCheck %s --check-prefix=CHECK-LOAD
+// RUN: not --crash %run %t s 2>&1 | FileCheck %s --check-prefix=CHECK-STORE
+// RUN: %run %t r 2>&1 | FileCheck %s --check-prefix=CHECK-REFERENCE
+// RUN: %run %t m 2>&1 | FileCheck %s --check-prefix=CHECK-MEMBER
+// RUN: %run %t f 2>&1 | FileCheck %s --check-prefix=CHECK-MEMFUN
+
+struct S {
+  int f() { return 0; }
+  int k;
+};
+
+int main(int, char **argv) {
+  int *p = 0;
+  S *s = 0;
+
+  (void)*p; // ok!
+
+  switch (argv[1][0]) {
+  case 'l':
+    // CHECK-LOAD: null.cpp:22:12: runtime error: load of null pointer of type 'int'
+    return *p;
+  case 's':
+    // CHECK-STORE: null.cpp:25:5: runtime error: store to null pointer of type 'int'
+    *p = 1;
+    break;
+  case 'r':
+    // CHECK-REFERENCE: null.cpp:29:15: runtime error: reference binding to null pointer of type 'int'
+    {int &r = *p;}
+    break;
+  case 'm':
+    // CHECK-MEMBER: null.cpp:33:15: runtime error: member access within null pointer of type 'S'
+    return s->k;
+  case 'f':
+    // CHECK-MEMFUN: null.cpp:36:12: runtime error: member call on null pointer of type 'S'
+    return s->f();
+  }
+}