diff --git a/src/third_party/llvm-project/clang/test/Rewriter/rewrite-weak-attr.m b/src/third_party/llvm-project/clang/test/Rewriter/rewrite-weak-attr.m
new file mode 100644
index 0000000..f8eb3b7
--- /dev/null
+++ b/src/third_party/llvm-project/clang/test/Rewriter/rewrite-weak-attr.m
@@ -0,0 +1,13 @@
+// RUN: %clang_cc1 -triple i686-pc-win32 -fms-extensions -fblocks -Dnil=0 -rewrite-objc -fobjc-runtime=macosx-fragile-10.5   -o - %s
+int main() {
+        __weak __block id foo = nil;
+        __block id foo2 = nil;
+        id foo3 = nil;
+        
+        void (^myblock)() = ^{
+                foo = nil;
+                foo2 = nil;
+                [foo3 bar];
+                id foo4 = foo3;
+        };
+}