IVGCVSW-5012 Enable zero copy for Neon

 * Allow memory import if padding is not required in Neon
 * AddMockImportBackend for fallback tests
 * Refactor GraphUtils
 * Memory import unit tests
 * Fallback unit tests

Signed-off-by: Narumol Prangnawarat <narumol.prangnawarat@arm.com>
Change-Id: Ic2e141e12774bf6d915e77745b6f6d2d83d9b82d

1 files changed, 46 insertions, 0 deletions

diff --git a/src/backends/backendsCommon/test/mockBackend/MockImportLayerSupport.hpp b/src/backends/backendsCommon/test/mockBackend/MockImportLayerSupport.hpp
new file mode 100644
index 0000000000..75e637efdf
--- /dev/null
+++ b/src/backends/backendsCommon/test/mockBackend/MockImportLayerSupport.hpp
@@ -0,0 +1,46 @@
+//
+// Copyright © 2020 Arm Ltd and Contributors. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+#pragma once
+
+#include <armnn/utility/IgnoreUnused.hpp>
+
+#include <backendsCommon/LayerSupportBase.hpp>
+
+namespace armnn
+{
+
+class MockImportLayerSupport : public LayerSupportBase
+{
+public:
+    bool IsAdditionSupported(const TensorInfo& input0,
+                             const TensorInfo& input1,
+                             const TensorInfo& output,
+                             Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const override
+    {
+        IgnoreUnused(input0);
+        IgnoreUnused(input1);
+        IgnoreUnused(output);
+        IgnoreUnused(reasonIfUnsupported);
+        return true;
+    }
+
+    bool IsInputSupported(const TensorInfo& input,
+                          Optional<std::string&> reasonIfUnsupported) const override
+    {
+        IgnoreUnused(input);
+        IgnoreUnused(reasonIfUnsupported);
+        return true;
+    }
+
+    bool IsOutputSupported(const TensorInfo& output,
+                           Optional<std::string&> reasonIfUnsupported) const override
+    {
+        IgnoreUnused(output);
+        IgnoreUnused(reasonIfUnsupported);
+        return true;
+    }
+};
+
+} // namespace armnn