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-rw-r--r--CMakeLists.txt1
-rw-r--r--src/armnn/Layer.cpp13
-rw-r--r--src/armnn/layers/SwitchLayer.cpp2
-rw-r--r--src/armnn/test/FlowControl.cpp53
4 files changed, 66 insertions, 3 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 297cbcd628..6dc1a1f02d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -421,6 +421,7 @@ if(BUILD_UNIT_TESTS)
src/armnn/test/EndToEndTest.cpp
src/armnn/test/ExecutionFrameTest.cpp
src/armnn/test/FloatingPointConverterTest.cpp
+ src/armnn/test/FlowControl.cpp
src/armnn/test/GraphTests.cpp
src/armnn/test/GraphUtils.cpp
src/armnn/test/GraphUtils.hpp
diff --git a/src/armnn/Layer.cpp b/src/armnn/Layer.cpp
index 0a6328ba3d..ced87b095c 100644
--- a/src/armnn/Layer.cpp
+++ b/src/armnn/Layer.cpp
@@ -262,8 +262,17 @@ LayerPriority Layer::GetPriority() const
auto maxPrio = [](const LayerPriority prio, const InputSlot& slot) -> LayerPriority
{
- const Layer& input = slot.GetConnectedOutputSlot()->GetOwningLayer();
- return std::max(prio, input.GetPriority());
+ const OutputSlot *outputSlot = slot.GetConnectedOutputSlot();
+ if (outputSlot)
+ {
+ const Layer& input = outputSlot->GetOwningLayer();
+ return std::max(prio, input.GetPriority());
+ }
+ else
+ {
+ // unconnected input slot
+ return prio;
+ }
};
m_Visiting = true;
diff --git a/src/armnn/layers/SwitchLayer.cpp b/src/armnn/layers/SwitchLayer.cpp
index eae6e0dfe2..4f0eb9b703 100644
--- a/src/armnn/layers/SwitchLayer.cpp
+++ b/src/armnn/layers/SwitchLayer.cpp
@@ -39,7 +39,7 @@ void SwitchLayer::ValidateTensorShapesFromInputs()
GetInputSlot(0).GetConnection()->GetTensorInfo().GetShape(),
GetInputSlot(1).GetConnection()->GetTensorInfo().GetShape() });
- BOOST_ASSERT(inferredShapes.size() == 1);
+ BOOST_ASSERT(inferredShapes.size() == 2);
ConditionalThrowIfNotEqual<LayerValidationException>(
"SwitchLayer: TensorShape set on OutputSlot[0] does not match the inferred shape.",
diff --git a/src/armnn/test/FlowControl.cpp b/src/armnn/test/FlowControl.cpp
new file mode 100644
index 0000000000..3bc993b33b
--- /dev/null
+++ b/src/armnn/test/FlowControl.cpp
@@ -0,0 +1,53 @@
+//
+// Copyright © 2017 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include <armnn/Descriptors.hpp>
+#include <armnn/IRuntime.hpp>
+#include <armnn/INetwork.hpp>
+
+#include <boost/test/unit_test.hpp>
+
+#include <set>
+
+BOOST_AUTO_TEST_SUITE(FlowControl)
+
+BOOST_AUTO_TEST_CASE(ErrorOnLoadNetwork)
+{
+ using namespace armnn;
+
+ // Create runtime in which test will run
+ IRuntime::CreationOptions options;
+ IRuntimePtr runtime(IRuntime::Create(options));
+
+ // build up the structure of the network
+ // It's equivalent to something like
+ // if (0) {} else {}
+ INetworkPtr net(INetwork::Create());
+
+ std::vector<uint8_t> falseData = {0};
+ ConstTensor falseTensor(armnn::TensorInfo({1}, armnn::DataType::Boolean), falseData);
+ IConnectableLayer* constLayer = net->AddConstantLayer(falseTensor, "const");
+ constLayer->GetOutputSlot(0).SetTensorInfo(armnn::TensorInfo({1}, armnn::DataType::Boolean));
+
+ IConnectableLayer* input = net->AddInputLayer(0);
+
+ IConnectableLayer* switchLayer = net->AddSwitchLayer("switch");
+ IConnectableLayer* mergeLayer = net->AddMergeLayer("merge");
+
+ IConnectableLayer* output = net->AddOutputLayer(0);
+
+ input->GetOutputSlot(0).Connect(switchLayer->GetInputSlot(0));
+ constLayer->GetOutputSlot(0).Connect(switchLayer->GetInputSlot(1));
+ switchLayer->GetOutputSlot(0).Connect(mergeLayer->GetInputSlot(0));
+ switchLayer->GetOutputSlot(1).Connect(mergeLayer->GetInputSlot(1));
+ mergeLayer->GetOutputSlot(0).Connect(output->GetInputSlot(0));
+
+ // optimize the network
+ std::vector<BackendId> backends = {Compute::CpuRef};
+ IOptimizedNetworkPtr optNet = Optimize(*net, backends, runtime->GetDeviceSpec());
+ BOOST_CHECK(!optNet); // Should have failed to optimise, as flow control is not yet implemented
+}
+
+BOOST_AUTO_TEST_SUITE_END()