From 8b1a81a9bf402698f36a8e7ce5e79aac8017e462 Mon Sep 17 00:00:00 2001
From: qiaolongfei <qiaolongfei@baidu.com>
Date: Tue, 9 Jan 2018 00:20:16 +0800
Subject: [PATCH] fix GetDims bug

---
 paddle/framework/operator.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/paddle/framework/operator.cc b/paddle/framework/operator.cc
index a1f1be5f34..fe8096835d 100644
--- a/paddle/framework/operator.cc
+++ b/paddle/framework/operator.cc
@@ -74,7 +74,9 @@ void UseALL() {
 
 static DDim GetDims(const Scope& scope, const std::string& name) {
   Variable* var = scope.FindVar(name);
-  if (var->IsType<LoDTensor>()) {
+  if (var == nullptr) {
+    return DDim({-1});
+  } else if (var->IsType<LoDTensor>()) {
     return var->Get<LoDTensor>().dims();
   } else if (var->IsType<SelectedRows>()) {
     return var->Get<SelectedRows>().GetCompleteDims();
-- 
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