MLCE-117 Add a unit test for implicit flatten of FC layer input

Change-Id: Ia4dd63927a54aa0cc24d5a378f30189c957f12e8
Signed-off-by: Matthew Bentham <matthew.bentham@arm.com>

1 files changed, 8 insertions, 18 deletions

diff --git a/1.0/HalPolicy.cpp b/1.0/HalPolicy.cpp
index dee4a7a5..158f0e36 100644
--- a/1.0/HalPolicy.cpp
+++ b/1.0/HalPolicy.cpp
@@ -5,7 +5,9 @@
 
 #include "HalPolicy.hpp"
 
-#include "armnn/Optional.hpp"
+#include <armnn/Optional.hpp>
+
+#include "FullyConnected.hpp"
 
 namespace armnn_driver
 {
@@ -633,25 +635,13 @@ bool HalPolicy::ConvertFullyConnected(const Operation& operation, const Model& m
 
     armnn::ConstTensor weights = weightsPin.GetConstTensor();
     armnn::ConstTensor bias    = biasPin.GetConstTensor();
-
     armnn::TensorInfo reshapedInfo = inputInfo;
-    if (inputInfo.GetNumDimensions() > 2U)
-    {
-        unsigned int dim0 = inputInfo.GetShape()[0];
-        unsigned int dim1 = inputInfo.GetShape()[1];
-
-        for (unsigned int i = 2U; i < inputInfo.GetNumDimensions(); ++i)
-        {
-            dim1 *= inputInfo.GetShape()[i];
-        }
 
-        unsigned int divisor = weights.GetInfo().GetShape()[1] / dim1;
-        if(dim0 % divisor != 0)
-        {
-            return Fail("%s: Failed to deduce tensor shape", __func__);
-        }
-
-        reshapedInfo.SetShape(armnn::TensorShape({dim0 / divisor, dim1 * divisor}));
+    try
+    {
+        reshapedInfo.SetShape(FlattenFullyConnectedInput(inputInfo.GetShape(), weights.GetInfo().GetShape()));
+    } catch (const std::exception &e) {
+        return Fail("%s: %s", __func__, e.what());
     }
 
     // ensuring that the bias value is within 1% of the weights input (small float differences can exist)