1 files changed, 50 insertions, 0 deletions
diff --git a/clang/test/CodeGenObjC/for-in.m b/clang/test/CodeGenObjC/for-in.m
new file mode 100644
index 0000000..26fe792
--- /dev/null
+++ b/clang/test/CodeGenObjC/for-in.m
@@ -0,0 +1,50 @@
+// RUN: %clang_cc1 -emit-llvm %s -o %t
+
+void p(const char*, ...);
+
+@interface NSArray
++(NSArray*) arrayWithObjects: (id) first, ...;
+-(unsigned) count;
+@end
+@interface NSString
+-(const char*) cString;
+@end
+
+#define S(n) @#n
+#define L1(n) S(n+0),S(n+1)
+#define L2(n) L1(n+0),L1(n+2)
+#define L3(n) L2(n+0),L2(n+4)
+#define L4(n) L3(n+0),L3(n+8)
+#define L5(n) L4(n+0),L4(n+16)
+#define L6(n) L5(n+0),L5(n+32)
+
+void t0() {
+  NSArray *array = [NSArray arrayWithObjects: L1(0), (void*)0];
+
+  p("array.length: %d\n", [array count]);
+  unsigned index = 0;
+  for (NSString *i in array) {	// expected-warning {{collection expression type 'NSArray *' may not respond}}
+    p("element %d: %s\n", index++, [i cString]);
+  }
+}
+
+void t1() {
+  NSArray *array = [NSArray arrayWithObjects: L6(0), (void*)0];
+
+  p("array.length: %d\n", [array count]);
+  unsigned index = 0;
+  for (NSString *i in array) {	// expected-warning {{collection expression type 'NSArray *' may not respond}}
+    index++;
+    if (index == 10)
+      continue;
+    p("element %d: %s\n", index, [i cString]);
+    if (index == 55)
+      break;
+  }
+}
+
+// rdar://problem/9027663
+void t2(NSArray *array) {
+  for (NSArray *array in array) { // expected-warning {{collection expression type 'NSArray *' may not respond}}
+  }
+}