1 files changed, 37 insertions, 0 deletions
diff --git a/test/tsan/cond_cancel.c b/test/tsan/cond_cancel.c
new file mode 100644
index 000000000000..397cad4b1838
--- /dev/null
+++ b/test/tsan/cond_cancel.c
@@ -0,0 +1,37 @@
+// RUN: %clang_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
+// CHECK-NOT: WARNING
+// CHECK: OK
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <pthread.h>
+#include <unistd.h>
+
+pthread_mutex_t m;
+pthread_cond_t c;
+int x;
+
+void *thr1(void *p) {
+  pthread_mutex_lock(&m);
+  pthread_cleanup_push((void(*)(void *arg))pthread_mutex_unlock, &m);
+  while (x == 0)
+    pthread_cond_wait(&c, &m);
+  pthread_cleanup_pop(1);
+  return 0;
+}
+
+int main() {
+  pthread_t th;
+
+  pthread_mutex_init(&m, 0);
+  pthread_cond_init(&c, 0);
+
+  pthread_create(&th, 0, thr1, 0);
+  sleep(1);  // let it block on cond var
+  pthread_cancel(th);
+
+  pthread_join(th, 0);
+  pthread_mutex_lock(&m);
+  pthread_mutex_unlock(&m);
+  fprintf(stderr, "OK\n");
+}