--- /dev/null
+// RUN: %clangxx -fsanitize=integer -fsanitize-recover=integer %s -o %t
+// RUN: not %t 2>&1 | FileCheck %s
+
+// __ubsan_default_options() doesn't work on Darwin.
+// XFAIL: darwin
+
+#include <stdint.h>
+
+extern "C" const char *__ubsan_default_options() {
+ return "halt_on_error=1";
+}
+
+int main() {
+ (void)(uint64_t(10000000000000000000ull) + uint64_t(9000000000000000000ull));
+ // CHECK: ubsan_options.cc:[[@LINE-1]]:44: runtime error: unsigned integer overflow
+ return 0;
+}
+