1 files changed, 15 insertions, 0 deletions
diff --git a/clang/test/CodeGenObjCXX/blocks.mm b/clang/test/CodeGenObjCXX/blocks.mm
index fd93437ff65..63a1b33f355 100644
--- a/clang/test/CodeGenObjCXX/blocks.mm
+++ b/clang/test/CodeGenObjCXX/blocks.mm
@@ -68,3 +68,18 @@ class CaptureThisAndAnotherPointer {
     takeBlock(^{ useValues(ptr, this); });
   }
 };
+
+// rdar://problem/23713871
+// Check that we don't crash when using BLOCK_LAYOUT_STRONG.
+#pragma clang assume_nonnull begin
+@interface NSUUID @end
+#pragma clang assume_nonnull end
+
+struct Wrapper1 { NSUUID *Ref; };
+struct Wrapper2 { Wrapper1 W1; };
+
+@implementation B
+- (void) captureStrongRef {
+  __block Wrapper2 W2;
+}
+@end