1 files changed, 46 insertions, 0 deletions
diff --git a/test/BlocksRuntime/byrefcopycopy.c b/test/BlocksRuntime/byrefcopycopy.c
new file mode 100644
index 000000000000..d6fafc152e1d
--- /dev/null
+++ b/test/BlocksRuntime/byrefcopycopy.c
@@ -0,0 +1,46 @@
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+
+// CONFIG rdar://6255170
+
+#include <stdio.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <Block.h>
+#include <Block_private.h>
+#include <assert.h>
+
+
+int
+main(int argc, char *argv[])
+{
+    __block int var = 0;
+    int shouldbe = 0;
+    void (^b)(void) = ^{ var++; /*printf("var is at %p with value %d\n", &var, var);*/ };
+    __typeof(b) _b;
+    //printf("before copy...\n");
+    b(); ++shouldbe;
+    size_t i;
+
+    for (i = 0; i < 10; i++) {
+            _b = Block_copy(b); // make a new copy each time
+            assert(_b);
+            ++shouldbe;
+            _b();               // should still update the stack
+            Block_release(_b);
+    }
+
+    //printf("after...\n");
+    b(); ++shouldbe;
+
+    if (var != shouldbe) {
+        printf("Hmm, var is %d but should be %d\n", var, shouldbe);
+        return 1;
+    }
+    printf("%s: Success!!\n", argv[0]);
+
+    return 0;
+}