compiler : Add Cluster.is_thread_sync

Author: FabioLuporini

devito/ir/clusters/cluster.py

@@ -327,6 +327,10 @@ def is_thread_arrive(self):
     def is_thread_wait(self):
         return self._is_type(ThreadWait)
 
+    @cached_property
+    def is_thread_sync(self):
+        return self.is_thread_pool_sync or self.is_thread_wait
+
     @cached_property
     def is_word_move(self):
         return (self._is_type(Indexed) and