1 files changed, 80 insertions, 0 deletions
diff --git a/test/CodeGenObjC/objc2-write-barrier-2.m b/test/CodeGenObjC/objc2-write-barrier-2.m
new file mode 100644
index 000000000000..c47224f1c516
--- /dev/null
+++ b/test/CodeGenObjC/objc2-write-barrier-2.m
@@ -0,0 +1,80 @@
+// RUN: clang-cc -triple x86_64-apple-darwin10 -fnext-runtime -fobjc-gc -emit-llvm -o %t %s &&
+// RUN: grep -F '@objc_assign_global' %t  | count 7 &&
+// RUN: grep -F '@objc_assign_ivar' %t  | count 5 &&
+// RUN: grep -F '@objc_assign_strongCast' %t  | count 8 &&
+// RUN: true
+
+extern id **somefunc(void);
+extern id *somefunc2(void);
+
+
+// Globals
+
+id W, *X, **Y;
+
+void func(id a, id *b, id **c) {
+   static id w, *x, **y;
+   W = a;  
+   w = a;
+   X = b;
+   x = b; 
+   Y = c;
+   y = c; 
+}
+
+// Instances
+
+@interface something {
+    id w, *x, **y;
+}
+@end
+
+@implementation something
+- (void)amethod {
+    id badIdea = *somefunc2();
+    w = badIdea;
+    x = &badIdea;
+    y = &x;
+}
+@end
+
+typedef struct {
+    int junk;
+    id  alfred;
+} AStruct;
+
+void funct2(AStruct *aptr) {
+    id **ppptr = somefunc();
+    aptr->alfred = 0;
+    **ppptr = aptr->alfred;
+    *ppptr = somefunc2(); 
+}
+
+typedef const struct __CFString * CFStringRef;
+@interface DSATextSearch {
+__strong CFStringRef *_documentNames;
+  struct {
+    id *innerNames;
+    struct {
+      id *nestedDeeperNames; 
+      struct I {
+         id *is1;
+         id is2[5];
+      } arrI [3];
+    } inner_most;
+  } inner;
+
+}
+- filter;
+@end
+@implementation DSATextSearch
+- filter {
+  int filteredPos = 0;
+  _documentNames[filteredPos] = 0; // storing into an element of array ivar. objc_assign_strongCast is needed.
+  inner.innerNames[filteredPos] = 0;
+  inner.inner_most.nestedDeeperNames[filteredPos] = 0;
+  inner.inner_most.arrI[3].is1[5] = 0;
+  inner.inner_most.arrI[3].is2[5] = 0;
+}
+@end
+