[tensorflow/compiler/tf2tensorrt/convert/convert_nodes_test.cc] Add calls to `reserve()` before populating vectors
diff --git a/tensorflow/compiler/tf2tensorrt/convert/convert_nodes_test.cc b/tensorflow/compiler/tf2tensorrt/convert/convert_nodes_test.cc
index 79e6d62..e002fa1 100644
--- a/tensorflow/compiler/tf2tensorrt/convert/convert_nodes_test.cc
+++ b/tensorflow/compiler/tf2tensorrt/convert/convert_nodes_test.cc
@@ -6271,6 +6271,7 @@
 auto get_concat_nodedef = [](DataType dtype, int num_inputs) -> NodeDef {
   Scope s = Scope::NewRootScope();
   std::vector<Input> values;
+  values.reserve(num_inputs);
   for (int i = 0; i < num_inputs; ++i) {
     const string input_name = StrCat("values_", i);
     values.push_back(ops::Placeholder(s.WithOpName(input_name), dtype));
@@ -6800,6 +6801,7 @@
 NodeDef GetPackNodeDef(DataType dtype, int num_inputs, int axis) {
   Scope s = Scope::NewRootScope();
   std::vector<Input> values;
+  values.reserve(num_inputs);
   for (int i = 0; i < num_inputs; ++i) {
     const string input_name = StrCat("values_", i);
     values.push_back(ops::Placeholder(s.WithOpName(input_name), dtype));