COMPMID-1505: Add native grouping support at graph level

Change-Id: Iedc91b0aee743b59af5140c8acb8124548da3163
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/144362
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Giorgio Arena <giorgio.arena@arm.com>
Reviewed-by: Michele DiGiorgio <michele.digiorgio@arm.com>

1 files changed, 41 insertions, 0 deletions

diff --git a/src/graph/Utils.cpp b/src/graph/Utils.cpp
index 4715694f15..75644a8933 100644
--- a/src/graph/Utils.cpp
+++ b/src/graph/Utils.cpp
@@ -78,13 +78,21 @@ PassManager create_default_pass_manager(Target target)
 {
     PassManager pm;
 
+    // Passes that mutate graph IR
+    pm.append(support::cpp14::make_unique<GroupedConvolutionMutator>());
     if(target != Target::GC)
     {
         pm.append(support::cpp14::make_unique<NodeFusionMutator>());
         pm.append(support::cpp14::make_unique<InPlaceOperationMutator>());
+    }
+
+    // Passes that mutate backend information
+    if(target != Target::GC)
+    {
         pm.append(support::cpp14::make_unique<DepthConcatSubTensorMutator>());
         pm.append(support::cpp14::make_unique<SplitLayerSubTensorMutator>());
     }
+    pm.append(support::cpp14::make_unique<NodeExecutionMethodMutator>());
 
     return pm;
 }
@@ -139,5 +147,38 @@ size_t get_dimension_idx(const TensorDescriptor &descriptor, const DataLayoutDim
             break;
     }
 }
+
+std::vector<NodeIdxPair> get_driving_nodes(const INode &node)
+{
+    std::vector<NodeIdxPair> driving_nodes;
+
+    const Graph *g = node.graph();
+    ARM_COMPUTE_ERROR_ON(g == nullptr);
+
+    for(auto &output_edge_id : node.output_edges())
+    {
+        auto output_edge = g->edge(output_edge_id);
+        if(output_edge != nullptr)
+        {
+            ARM_COMPUTE_ERROR_ON(output_edge->consumer() == nullptr);
+            driving_nodes.push_back({ output_edge->consumer_id(), output_edge->consumer_idx() });
+        }
+    }
+
+    return driving_nodes;
+}
+
+void configure_tensor(Tensor *tensor)
+{
+    if(tensor != nullptr && tensor->handle() == nullptr)
+    {
+        Target target  = tensor->desc().target;
+        auto   backend = backends::BackendRegistry::get().find_backend(target);
+        ARM_COMPUTE_ERROR_ON_MSG(!backend, "Requested backend doesn't exist!");
+        auto handle = backend->create_tensor(*tensor);
+        ARM_COMPUTE_ERROR_ON_MSG(!backend, "Couldn't create backend handle!");
+        tensor->set_handle(std::move(handle));
+    }
+}
 } // namespace graph
 } // namespace arm_compute