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, 13 insertions, 0 deletions

diff --git a/src/armnn/test/GraphUtils.cpp b/src/armnn/test/GraphUtils.cpp
index 36db900a2d..bc6b562c9d 100644
--- a/src/armnn/test/GraphUtils.cpp
+++ b/src/armnn/test/GraphUtils.cpp
@@ -63,3 +63,16 @@ bool IsConnected(armnn::Layer* srcLayer, armnn::Layer* destLayer,
     }
     return false;
 }
+
+/// Checks that first comes before second in the order.
+bool CheckOrder(const armnn::Graph& graph, const armnn::Layer* first, const armnn::Layer* second)
+{
+    graph.Print();
+
+    const auto& order = graph.TopologicalSort();
+
+    auto firstPos = std::find(order.begin(), order.end(), first);
+    auto secondPos = std::find(firstPos, order.end(), second);
+
+    return (secondPos != order.end());
+}