diff --git a/mindspore/lite/src/lite_mindrt.cc b/mindspore/lite/src/lite_mindrt.cc
index c8c3450430c..028f7270714 100644
--- a/mindspore/lite/src/lite_mindrt.cc
+++ b/mindspore/lite/src/lite_mindrt.cc
@@ -103,6 +103,9 @@ void LiteOpActor::IsolateInputData(std::vector<std::shared_ptr<LiteOpActor>> *ac
 
     Tensor *new_tensor = new Tensor(new_data_type, old_tensor->shape(), old_tensor->format(), old_tensor->category());
     new_tensor->set_allocator(old_tensor->allocator()); /* GPU use opencl allocator */
+    if (new_tensor->allocator() == nullptr && kernel_->subgraph_type() == kernel::kCpuFP16SubGraph) {
+      new_tensor->set_allocator(kernel_->Context()->allocator);
+    }
     new_tensor->set_tensor_name(kernel_->name() + "_duplicate_" + old_tensor->tensor_name());
     for (QuantArg quant : old_tensor->quant_params()) {
       new_tensor->AddQuantParam(quant);
diff --git a/mindspore/lite/tools/converter/anf_transform.cc b/mindspore/lite/tools/converter/anf_transform.cc
index 33b46522dbf..86852c636b0 100644
--- a/mindspore/lite/tools/converter/anf_transform.cc
+++ b/mindspore/lite/tools/converter/anf_transform.cc
@@ -260,7 +260,6 @@ void AnfTransform::GetFuncGraphs(const FuncGraphPtr &func_graph, std::set<FuncGr
   to_process.insert(to_process.end(), nodes.begin(), nodes.end());
   while (!to_process.empty()) {
     auto &cur_cnode = to_process.front();
-    to_process.pop_front();
     for (auto &input : cur_cnode->inputs()) {
       if (!IsValueNode<FuncGraph>(input)) {
         continue;
@@ -273,6 +272,7 @@ void AnfTransform::GetFuncGraphs(const FuncGraphPtr &func_graph, std::set<FuncGr
       auto new_nodes = new_fg->GetOrderedCnodes();
       to_process.insert(to_process.end(), new_nodes.begin(), new_nodes.end());
     }
+    to_process.pop_front();
   }
 }