fix split op

test=develop

paddle/fluid/lite/operators/CMakeLists.txt

@@ -20,7 +20,7 @@ cc_library(fill_constant_op_lite SRCS fill_constant_op.cc DEPS ${op_DEPS})
 cc_library(op_params_lite SRCS op_params.cc DEPS ${tensor_lite} any_lite framework_proto_lite)
 cc_library(dropout_op_lite SRCS dropout_op.cc DEPS ${op_DEPS})
 cc_library(concat_op_lite SRCS concat_op.cc DEPS ${op_DEPS})
-# cc_library(split_op_lite SRCS split_op.cc DEPS ${op_DEPS})
+cc_library(split_op_lite SRCS split_op.cc DEPS ${op_DEPS})
 
 set(ops_lite
         conv_op_lite
@@ -41,7 +41,7 @@ set(ops_lite
         activation_ops_lite
         dropout_op_lite
         concat_op_lite
-        #split_op_lite
+        split_op_lite
         PARENT_SCOPE)
 
 lite_cc_test(test_fc_op_lite SRCS fc_op_test.cc 

paddle/fluid/lite/operators/split_op.cc

@@ -48,7 +48,7 @@ bool SplitOp::InferShape() const {
       outs_dims.push_back(dim);
     }
   } else if (sections.size() > 0) {
-    for (size_t i = 0; i < outs_number; ++i) {
+    for (int i = 0; i < outs_number; ++i) {
       auto dim = in_dims;
       dim[axis] = sections[i];
       outs_dims.push_back(dim);
@@ -66,9 +66,9 @@ bool SplitOp::AttachImpl(const cpp::OpDesc &opdesc, lite::Scope *scope) {
   param_.axis = opdesc.GetAttr<int>("axis");
   param_.num = opdesc.GetAttr<int>("num");
   param_.sections = opdesc.GetAttr<std::vector<int>>("sections");
-  param_.x = const_cast<lite::Tensor *>(
-      &scope->FindVar(opdesc.Input("X").front())->Get<lite::Tensor>());
+  auto input = opdesc.Input("Input").front();
   auto outs = opdesc.Output("Out");
+  param_.x = scope->FindVar(input)->GetMutable<lite::Tensor>();
   for (auto var : outs) {
     param_.output.push_back(scope->FindVar(var)->GetMutable<lite::Tensor>());
   }