--- /dev/null
+// RUN: %clang_cc1 -triple i386-apple-darwin10 -fblocks -g -S %s -o -
+
+// rdar://7590323
+typedef struct dispatch_queue_s *dispatch_queue_t;
+__attribute__((visibility("default")))
+extern struct dispatch_queue_s _dispatch_main_q;
+typedef struct dispatch_item_s *dispatch_item_t;
+typedef void (^dispatch_legacy_block_t)(dispatch_item_t);
+dispatch_item_t LEGACY_dispatch_call(dispatch_queue_t dq,
+ dispatch_legacy_block_t dispatch_block,
+ dispatch_legacy_block_t callback_block) {
+ dispatch_queue_t lq = _dispatch_queue_get_current() ?: (&_dispatch_main_q);
+ dispatch_async(dq, ^{
+ if (callback_block) {
+ dispatch_async(lq, ^{
+ }
+ );
+ }
+ }
+ );
+}