1 files changed, 19 insertions, 0 deletions
diff --git a/lib/asan/lit_tests/TestCases/poison_partial.cc b/lib/asan/lit_tests/TestCases/poison_partial.cc
new file mode 100644
index 000000000000..f7c48bf597b6
--- /dev/null
+++ b/lib/asan/lit_tests/TestCases/poison_partial.cc
@@ -0,0 +1,19 @@
+// RUN: %clangxx_asan -O0 %s -o %t
+// RUN: not %t      2>&1 | FileCheck %s
+// RUN: not %t heap 2>&1 | FileCheck %s
+// RUN: ASAN_OPTIONS=poison_partial=0 %t
+// RUN: ASAN_OPTIONS=poison_partial=0 %t heap
+#include <string.h>
+char g[21];
+char *x;
+
+int main(int argc, char **argv) {
+  if (argc >= 2)
+    x = new char[21];
+  else
+    x = &g[0];
+  memset(x, 0, 21);
+  int *y = (int*)x;
+  return y[5];
+}
+// CHECK: 0 bytes to the right