From c621fbda20915007d32ff79a43f53f61cf5328ae Mon Sep 17 00:00:00 2001
From: Kang <wuyongkang7@huawei.com>
Date: Tue, 16 Jun 2020 11:04:01 +0800
Subject: [PATCH] Optimized ApplyTransform function

---
 mindspore/ccsrc/optimizer/opt.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mindspore/ccsrc/optimizer/opt.cc b/mindspore/ccsrc/optimizer/opt.cc
index c9f5803902..7ed6a93934 100644
--- a/mindspore/ccsrc/optimizer/opt.cc
+++ b/mindspore/ccsrc/optimizer/opt.cc
@@ -110,6 +110,7 @@ bool SubstitutionList::ApplyTransform(const OptimizerPtr &optimizer, const AnfNo
   auto seen = NewSeenGeneration();
   // 1024 is for the initial capacity of deque
   std::deque<AnfNodePtr> todo(1024);
+  todo.clear();
   todo.push_back(root_node);
   bool changes = false;