1 files changed, 0 insertions, 87 deletions
diff --git a/src/armnn/optimizations/PermuteAndBatchToSpaceAsDepthToSpace.cpp b/src/armnn/optimizations/PermuteAndBatchToSpaceAsDepthToSpace.cpp
deleted file mode 100644
index c42162b6c1..0000000000
--- a/src/armnn/optimizations/PermuteAndBatchToSpaceAsDepthToSpace.cpp
+++ /dev/null
@@ -1,87 +0,0 @@
-//
-// Copyright © 2019 Arm Ltd. All rights reserved.
-// SPDX-License-Identifier: MIT
-//
-
-#include "PermuteAndBatchToSpaceAsDepthToSpace.hpp"
-
-using namespace armnn;
-using namespace armnn::optimizations;
-
-void PermuteAndBatchToSpaceAsDepthToSpaceImpl::Run(Graph& graph, InputSlot& connection) const
-{
-    // Validate base layer (the Permute) is compatible
-    Layer& base = connection.GetConnectedOutputSlot()->GetOwningLayer();
-    BOOST_ASSERT(base.GetType() == LayerType::Permute);
-    const TensorInfo& inputInfo        = base.GetInputSlot(0).GetConnection()->GetTensorInfo();
-    const TensorInfo& intermediateInfo = base.GetOutputSlot(0).GetTensorInfo();
-    if (intermediateInfo.GetNumDimensions() != 4)
-    {
-        // Must be 4D, otherwise the below checks do not make sense
-        return;
-    }
-    if (!static_cast<PermuteLayer&>(base).GetParameters().m_DimMappings.IsEqual(PermutationVector{ 3, 1, 2, 0 }))
-    {
-        // Must swap batch and channels dimensions, otherwise it is not the (original) channels dimension
-        // that is being decomposed.
-        return;
-    }
-
-    // Validate child layer (the BatchToSpace) is compatible
-    Layer& child = connection.GetOwningLayer();
-    BOOST_ASSERT(child.GetType() == LayerType::BatchToSpaceNd);
-    const TensorInfo& outputInfo                     = child.GetOutputSlot(0).GetTensorInfo();
-    const BatchToSpaceNdDescriptor& batchToSpaceDesc = static_cast<BatchToSpaceNdLayer&>(child).GetParameters();
-    if (batchToSpaceDesc.m_DataLayout != DataLayout::NHWC)
-    {
-        // The rest of this function assumes NHWC, although in future this restriction could be lifted.
-        return;
-    }
-    if (batchToSpaceDesc.m_Crops != std::vector<std::pair<unsigned int, unsigned int>>{ { 0, 0 }, { 0, 0 } })
-    {
-        // Cropping is not supported in DepthToSpace
-        return;
-    }
-    if (batchToSpaceDesc.m_BlockShape.size() != 2 ||
-        batchToSpaceDesc.m_BlockShape[0] != batchToSpaceDesc.m_BlockShape[1])
-    {
-        // Asymmetric or non-2D block sizes are not supported by DepthToSpace
-        return;
-    }
-    uint32_t blockSize = batchToSpaceDesc.m_BlockShape[0];
-    if (outputInfo.GetShape()[0] != 1 || outputInfo.GetShape()[3] != 1)
-    {
-        // The final output must have 1 batch and 1 channel because these dimensions will be swapped around
-        // once we make the substitution, and it needs to be equivalent.
-        return;
-    }
-
-    // Validate the intermediate tensor quantization params.
-    // These must be identical to either the input or output quantization params, otherwise the intermediate tensor
-    // may not have sufficient range/precision to preserve the values.
-    // This would mean that once we perform the substitution this loss of precision will no longer occur,
-    // so we would have changed the meaning of the network.
-    bool isIntermediateQuantParamsSameAsInput =
-        intermediateInfo.GetQuantizationScale() == inputInfo.GetQuantizationScale() &&
-        intermediateInfo.GetQuantizationOffset() == inputInfo.GetQuantizationOffset();
-    bool isIntermediateQuantParamsSameAsOutput =
-        intermediateInfo.GetQuantizationScale() == outputInfo.GetQuantizationScale() &&
-        intermediateInfo.GetQuantizationOffset() == outputInfo.GetQuantizationOffset();
-    if (!isIntermediateQuantParamsSameAsInput && !isIntermediateQuantParamsSameAsOutput)
-    {
-        return;
-    }
-
-    // Insert equivalent DepthToSpace layer
-    const std::string name = std::string("merged-") + base.GetName() + std::string("-with-") + child.GetName();
-
-    // Inserts equivalent reshape before base layer.
-    const DepthToSpaceDescriptor depthToSpaceDesc(blockSize, DataLayout::NHWC);
-    auto& depthToSpace = *graph.InsertNewLayer<DepthToSpaceLayer>(base.GetInputSlot(0), depthToSpaceDesc, name.c_str());
-    depthToSpace.GetOutputHandler().SetTensorInfo(outputInfo);
-
-    // Moves connections from child output to new layer.
-    // Child layer will be removed as it's left unconnected.
-    // Base layer will be removed if left unconnected.
-    child.GetOutputSlot().MoveAllConnections(depthToSpace.GetOutputSlot());
-}