message: Create new tensors for all const subcomputation inputs.
  Summary: Relates to T2468
  Test Plan: All tests pass.
  Reviewers: davidn
diff: @@ -96,8 +96,7 @@ Status SubComputationVisitor::HandleParameter(HloInstruction* inst) {
  valid[i] = true;
  auto& t = temp_inputs_[inst->parameter_number()][i];
  auto src = std::make_pair(inst, i);
  - if (resources_.annotations.tensor_allocation_map.count(src) > 0 &&
  - t.containsConstant()) {
  + if (t.containsConstant()) {
  poplar::Tensor out;
  TF_ASSIGN_OR_RETURN(out, AddTensor(graph_, src, shapes[i], resources_));
  inputs.push_back(out);
  