1 files changed, 36 insertions, 0 deletions
diff --git a/test/tsan/Linux/mutex_robust.cc b/test/tsan/Linux/mutex_robust.cc
new file mode 100644
index 000000000000..5ca5e70d49a7
--- /dev/null
+++ b/test/tsan/Linux/mutex_robust.cc
@@ -0,0 +1,36 @@
+// RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
+#include <pthread.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <errno.h>
+
+pthread_mutex_t m;
+
+void *thr(void *p) {
+  pthread_mutex_lock(&m);
+  return 0;
+}
+
+int main() {
+  pthread_mutexattr_t a;
+  pthread_mutexattr_init(&a);
+  pthread_mutexattr_setrobust(&a, PTHREAD_MUTEX_ROBUST);
+  pthread_mutex_init(&m, &a);
+  pthread_t th;
+  pthread_create(&th, 0, thr, 0);
+  sleep(1);
+  if (pthread_mutex_lock(&m) != EOWNERDEAD) {
+    fprintf(stderr, "not EOWNERDEAD\n");
+    exit(1);
+  }
+  pthread_join(th, 0);
+  fprintf(stderr, "DONE\n");
+}
+
+// This is a correct code, and tsan must not bark.
+// CHECK-NOT: WARNING: ThreadSanitizer
+// CHECK-NOT: EOWNERDEAD
+// CHECK: DONE
+// CHECK-NOT: WARNING: ThreadSanitizer
+