From 4fcda0101ec3d110c1d6d7bee5c83416b645528a Mon Sep 17 00:00:00 2001 From: telsoa01 Date: Fri, 9 Mar 2018 14:13:49 +0000 Subject: Release 18.02 Change-Id: Id3c11dc5ee94ef664374a988fcc6901e9a232fa6 --- .../optimizations/OptimizeInversePermutes.hpp | 40 ++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 src/armnn/optimizations/OptimizeInversePermutes.hpp (limited to 'src/armnn/optimizations/OptimizeInversePermutes.hpp') diff --git a/src/armnn/optimizations/OptimizeInversePermutes.hpp b/src/armnn/optimizations/OptimizeInversePermutes.hpp new file mode 100644 index 0000000000..63820cb7d3 --- /dev/null +++ b/src/armnn/optimizations/OptimizeInversePermutes.hpp @@ -0,0 +1,40 @@ +// +// Copyright © 2017 Arm Ltd. All rights reserved. +// See LICENSE file in the project root for full license information. +// +#pragma once + +#include "Optimization.hpp" + +namespace armnn +{ +namespace optimizations +{ + +class OptimizeInversePermutesImpl +{ +public: + /// Run for every connection between a base PermuteLayer and a child PermuteLayer. + /// Bypasses both layers for that connection if one is the inverse of the other. + void Run(Graph& graph, InputSlot& connection) const + { + Layer& base = connection.GetConnectedOutputSlot()->GetOwningLayer(); + auto child = boost::polymorphic_downcast(&connection.GetOwningLayer()); + + if (child->IsInverse(*boost::polymorphic_downcast(&base))) + { + // Bypass both layers. Child will be removed as it's left unconnected. + // Base layer will be removed if left unconnected. + child->GetOutputSlot().MoveAllConnections(*base.GetInputSlot(0).GetConnectedOutputSlot()); + } + } + +protected: + OptimizeInversePermutesImpl() = default; + ~OptimizeInversePermutesImpl() = default; +}; + +using OptimizeInversePermutes = OptimizeForConnection; + +} // namespace optimizations +} // namespace armnn -- cgit v1.2.1