1 files changed, 32 insertions, 0 deletions
diff --git a/src/test/debuginfo/rwlock-read.rs b/src/test/debuginfo/rwlock-read.rs
new file mode 100644
index 000000000..ed9aae16b
--- /dev/null
+++ b/src/test/debuginfo/rwlock-read.rs
@@ -0,0 +1,32 @@
+// Testing the display of RwLock and RwLockReadGuard in cdb.
+
+// cdb-only
+// min-cdb-version: 10.0.18317.1001
+// compile-flags:-g
+
+// === CDB TESTS ==================================================================================
+//
+// cdb-command:g
+//
+// cdb-command:dx l
+// cdb-check:l                [Type: std::sync::rwlock::RwLock<i32>]
+// cdb-check:    [...] poison           [Type: std::sync::poison::Flag]
+// cdb-check:    [...] data             : 0 [Type: core::cell::UnsafeCell<i32>]
+//
+// cdb-command:dx r
+// cdb-check:r                [Type: std::sync::rwlock::RwLockReadGuard<i32>]
+// cdb-check:    [...] data             : NonNull([...]: 0) [Type: core::ptr::non_null::NonNull<i32>]
+// cdb-check:    [...] inner_lock       : [...] [Type: std::sys_common::rwlock::MovableRwLock *]
+
+#[allow(unused_variables)]
+
+use std::sync::RwLock;
+
+fn main()
+{
+    let l = RwLock::new(0);
+    let r = l.read().unwrap();
+    zzz(); // #break
+}
+
+fn zzz() {}