From 1c44a6edbeefb6af8084815d35a7b32d21ce3a39 Mon Sep 17 00:00:00 2001
From: laiyongqiang <laiyongqiang1@huawei.com>
Date: Fri, 22 May 2020 16:54:38 +0800
Subject: [PATCH] don't eliminate nop node in getnext-memcpy elimination

---
 .../ascend/enhancer/getnext_memcpy_elimination.cc            | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/mindspore/ccsrc/pre_activate/ascend/enhancer/getnext_memcpy_elimination.cc b/mindspore/ccsrc/pre_activate/ascend/enhancer/getnext_memcpy_elimination.cc
index f747321721..6d0906363e 100644
--- a/mindspore/ccsrc/pre_activate/ascend/enhancer/getnext_memcpy_elimination.cc
+++ b/mindspore/ccsrc/pre_activate/ascend/enhancer/getnext_memcpy_elimination.cc
@@ -56,9 +56,12 @@ const AnfNodePtr GetnextMemcpyElimination::Process(const FuncGraphPtr &graph, co
     return nullptr;
   }
 
-  // 3. next_node has only one input which is memcpy's output
+  // 3. next_node is not nop node and it has only one input which is memcpy's output
   for (auto &item : next_nodes) {
     auto next_node = item.first->cast<CNodePtr>();
+    if (opt::IsNopNode(next_node)) {
+      return nullptr;
+    }
     if (next_node->inputs().size() != 2) {
       MS_LOG(DEBUG) << "next node has more than one input";
       return nullptr;