IVGCVSW-6603 'Add a no fallback mode to the TfLite Delegate'

* Added disable-tflite-runtime-fallback option to armnn_delegate
* Updated armnn_delegate version

Signed-off-by: Sadik Armagan <sadik.armagan@arm.com>
Change-Id: I449b16404d3ffe98e6dac52a43e7c25225addd73

1 files changed, 9 insertions, 0 deletions

diff --git a/delegate/src/armnn_delegate.cpp b/delegate/src/armnn_delegate.cpp
index eac3862c18..c041dd1714 100644
--- a/delegate/src/armnn_delegate.cpp
+++ b/delegate/src/armnn_delegate.cpp
@@ -222,6 +222,15 @@ TfLiteIntArray* Delegate::IdentifyOperatorsToDelegate(TfLiteContext* tfLiteConte
                            *it);
     }
 
+    if (!unsupportedOperators.empty() && m_Options.TfLiteRuntimeFallbackDisabled())
+    {
+        std::stringstream exMessage;
+        exMessage << "TfLiteArmnnDelegate: There are unsupported operators in the model. ";
+        exMessage << "Not falling back to TfLite Runtime as fallback is disabled. ";
+        exMessage << "This should only be disabled under test conditions.";
+        throw armnn::Exception(exMessage.str());
+    }
+
     std::sort(&nodesToDelegate->data[0], &nodesToDelegate->data[nodesToDelegate->size]);
     return nodesToDelegate;
 }