1 files changed, 48 insertions, 0 deletions
diff --git a/test/Rewriter/rewrite-modern-struct-ivar-1.mm b/test/Rewriter/rewrite-modern-struct-ivar-1.mm
new file mode 100644
index 0000000000000..a17fe3f85675d
--- /dev/null
+++ b/test/Rewriter/rewrite-modern-struct-ivar-1.mm
@@ -0,0 +1,48 @@
+// RUN: %clang_cc1 -fblocks -rewrite-objc -fms-extensions %s -o %t-rw.cpp
+// RUN: %clang_cc1 -Werror -fsyntax-only -Wno-address-of-temporary -Wno-c++11-narrowing -std=c++11 -D"Class=void*" -D"id=void*" -D"SEL=void*" -U__declspec -D"__declspec(X)=" %t-rw.cpp
+// rdar://11323187
+
+typedef unsigned long NSUInteger;
+
+typedef struct _NSRange {
+    NSUInteger location;
+    NSUInteger length;
+} NSRange;
+
+typedef struct {
+    NSUInteger _capacity;
+    NSRange _ranges[0];
+} _NSRangeInfo;
+
+@interface Foo{
+    @protected 
+    struct _bar {
+        int x:1;
+        int y:1;
+    } bar;
+    union {
+        struct {
+            NSRange _range;
+        } _singleRange;
+        struct {
+            void *  _data;
+            void *_reserved;
+        } _multipleRanges;
+    } _internal;    
+}
+@end
+@implementation Foo
+- (void)x:(Foo *)other {
+  bar.x = 0;
+  bar.y = 1;
+  self->_internal._singleRange._range = (( other ->bar.x) ? &( other ->_internal._singleRange._range) : ((NSRange *)(&(((_NSRangeInfo *)( other ->_internal._multipleRanges._data))->_ranges))))[0];
+}
+@end
+@interface FooS : Foo
+@end
+@implementation FooS
+- (void)y {
+
+  NSUInteger asdf =  (( self ->bar.x) ? 1 : ((_NSRangeInfo *)( self ->_internal._multipleRanges._data))->_capacity ); 
+}
+@end