From e2c82fee3b6d38f6e79412c78176792b817defd0 Mon Sep 17 00:00:00 2001
From: Georgios Pinitas <georgios.pinitas@arm.com>
Date: Mon, 2 Oct 2017 18:51:47 +0100
Subject: COMPMID-550: Adds support for branches.

Change-Id: I778007c9221ce3156400284c4039b90245eb2b7f
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/90043
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
---
 src/graph/Graph.cpp | 52 ++++++++++++++++++++++++++++++++--------------------
 1 file changed, 32 insertions(+), 20 deletions(-)

(limited to 'src/graph/Graph.cpp')

diff --git a/src/graph/Graph.cpp b/src/graph/Graph.cpp
index 7dddb1cd9a..b86330b658 100644
--- a/src/graph/Graph.cpp
+++ b/src/graph/Graph.cpp
@@ -26,16 +26,18 @@
 #include "arm_compute/graph/CL/CLMap.h"
 #include "arm_compute/graph/CL/CLUnmap.h"
 #include "arm_compute/graph/INode.h"
+#include "arm_compute/graph/ITensorObject.h"
 #include "arm_compute/graph/Tensor.h"
 #include "arm_compute/runtime/CL/CLTensor.h"
 #include "arm_compute/runtime/Tensor.h"
+#include "support/ToolchainSupport.h"
 
 using namespace arm_compute::graph;
 
 struct Stage
 {
-    Tensor                                 *_input;
-    Tensor                                 *_output;
+    ITensorObject                          *_input;
+    ITensorObject                          *_output;
     std::unique_ptr<arm_compute::IFunction> _function;
 };
 
@@ -48,20 +50,21 @@ public:
      */
     void configure(GraphHints _next_hints);
 
-    GraphContext                         _ctx{};
-    std::vector<Stage>                   _pipeline{};
-    std::vector<std::unique_ptr<Tensor>> _tensors{};
-    std::vector<std::unique_ptr<INode>>  _nodes{};
-    GraphHints                           _current_hints{};
-    GraphHints                           _next_hints{};
-    std::unique_ptr<Tensor>              _graph_input{ nullptr };
-    std::unique_ptr<Tensor>              _graph_output{ nullptr };
-    std::unique_ptr<INode>               _current_node{ nullptr };
-    Tensor                              *_current_output{ nullptr };
+    GraphContext                                _ctx{};
+    std::vector<Stage>                          _pipeline{};
+    std::vector<std::unique_ptr<ITensorObject>> _tensors{};
+    std::vector<std::unique_ptr<INode>>         _nodes{};
+    GraphHints                                  _current_hints{};
+    GraphHints                                  _next_hints{};
+    std::unique_ptr<ITensorObject>              _graph_input{ nullptr };
+    std::unique_ptr<ITensorObject>              _graph_output{ nullptr };
+    std::unique_ptr<INode>                      _current_node{ nullptr };
+    ITensorObject                              *_current_output{ nullptr };
+    bool                                        _info_enabled{ false };
 
 private:
-    Tensor    *_current_input{ nullptr };
-    GraphHints _previous_hints{};
+    ITensorObject *_current_input{ nullptr };
+    GraphHints     _previous_hints{};
 };
 
 Graph::~Graph() //NOLINT
@@ -78,7 +81,7 @@ void Graph::run()
 {
     while(true)
     {
-        if(!_pimpl->_graph_input->call_accessor())
+        if(_pimpl->_graph_input->has_accessor() && !_pimpl->_graph_input->call_accessor())
         {
             return;
         }
@@ -88,7 +91,8 @@ void Graph::run()
             stage._function->run();
         }
 
-        if(!_pimpl->_graph_output->call_accessor())
+        if((_pimpl->_graph_output->has_accessor() && !_pimpl->_graph_output->call_accessor())
+           || (!_pimpl->_graph_output->has_accessor()))
         {
             return;
         }
@@ -126,9 +130,11 @@ void Graph::Private::configure(GraphHints _next_hints)
         _current_output->set_target(TargetHint::NEON);
     }
 
-    // Update ctx and instantiate node
+    // Instantiate Node
     _ctx.hints()                                 = _current_hints;
-    std::unique_ptr<arm_compute::IFunction> func = _current_node->instantiate_node(_ctx, _current_input->tensor(), _current_output->tensor());
+    std::unique_ptr<arm_compute::IFunction> func = _current_node->instantiate_node(_ctx, _current_input, _current_output);
+
+    // Allocate current input
     _current_input->allocate();
 
     // Map input if needed
@@ -181,7 +187,7 @@ void Graph::add_node(std::unique_ptr<INode> node)
 }
 
 //Add a tensor with an Accessor (i.e either the input or output of the graph)
-void Graph::add_tensor(std::unique_ptr<Tensor> tensor)
+void Graph::add_tensor_object(std::unique_ptr<ITensorObject> tensor)
 {
     // If it's the first Tensor added then it will be the input of the Graph.
     if(_pimpl->_graph_input == nullptr)
@@ -227,7 +233,13 @@ Graph &arm_compute::graph::operator<<(Graph &graph, TensorInfo &&info)
 
 Graph &arm_compute::graph::operator<<(Graph &graph, Tensor &&tensor)
 {
-    graph.add_tensor(arm_compute::support::cpp14::make_unique<Tensor>(std::move(tensor)));
+    graph.add_tensor_object(arm_compute::support::cpp14::make_unique<Tensor>(std::move(tensor)));
+    return graph;
+}
+
+Graph &arm_compute::graph::operator<<(Graph &graph, SubTensor &&sub_tensor)
+{
+    graph.add_tensor_object(arm_compute::support::cpp14::make_unique<SubTensor>(std::move(sub_tensor)));
     return graph;
 }
 
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