IVGCVSW-2212 Add Neon support for Maximum operator

Change-Id: Iddae3486641d2d195827ae4e0a9dfa3f7ccd65e3

4 files changed, 78 insertions, 0 deletions

diff --git a/src/backends/neon/workloads/CMakeLists.txt b/src/backends/neon/workloads/CMakeLists.txt
index 2c2c9f05e6..9961397445 100644
--- a/src/backends/neon/workloads/CMakeLists.txt
+++ b/src/backends/neon/workloads/CMakeLists.txt
@@ -28,6 +28,8 @@ list(APPEND armnnNeonBackendWorkloads_sources
     NeonL2NormalizationFloatWorkload.hpp
     NeonLstmFloatWorkload.cpp
     NeonLstmFloatWorkload.hpp
+    NeonMaximumWorkload.cpp
+    NeonMaximumWorkload.hpp
     NeonMergerWorkload.cpp
     NeonMergerWorkload.hpp
     NeonMultiplicationFloatWorkload.cpp
diff --git a/src/backends/neon/workloads/NeonMaximumWorkload.cpp b/src/backends/neon/workloads/NeonMaximumWorkload.cpp
new file mode 100644
index 0000000000..9994af98d1
--- /dev/null
+++ b/src/backends/neon/workloads/NeonMaximumWorkload.cpp
@@ -0,0 +1,45 @@
+//
+// Copyright © 2017 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include "NeonMaximumWorkload.hpp"
+#include <aclCommon/ArmComputeTensorUtils.hpp>
+#include <backendsCommon/CpuTensorHandle.hpp>
+
+namespace armnn
+{
+
+arm_compute::Status NeonMaximumWorkloadValidate(const TensorInfo& input0,
+                                                const TensorInfo& input1,
+                                                const TensorInfo& output)
+{
+    const arm_compute::TensorInfo aclInput0 = armcomputetensorutils::BuildArmComputeTensorInfo(input0);
+    const arm_compute::TensorInfo aclInput1 = armcomputetensorutils::BuildArmComputeTensorInfo(input1);
+    const arm_compute::TensorInfo aclOutput = armcomputetensorutils::BuildArmComputeTensorInfo(output);
+
+    return arm_compute::NEElementwiseMax::validate(&aclInput0,
+                                                   &aclInput1,
+                                                   &aclOutput);
+}
+
+NeonMaximumWorkload::NeonMaximumWorkload(const MaximumQueueDescriptor& descriptor,
+                                         const WorkloadInfo& info)
+    : BaseWorkload<MaximumQueueDescriptor>(descriptor, info)
+{
+    m_Data.ValidateInputsOutputs("NeonMaximumWorkload", 2, 1);
+
+    arm_compute::ITensor& input0 = boost::polymorphic_downcast<INeonTensorHandle*>(m_Data.m_Inputs[0])->GetTensor();
+    arm_compute::ITensor& input1 = boost::polymorphic_downcast<INeonTensorHandle*>(m_Data.m_Inputs[1])->GetTensor();
+    arm_compute::ITensor& output = boost::polymorphic_downcast<INeonTensorHandle*>(m_Data.m_Outputs[0])->GetTensor();
+
+    m_MaxLayer.configure(&input0, &input1, &output);
+}
+
+void NeonMaximumWorkload::Execute() const
+{
+    ARMNN_SCOPED_PROFILING_EVENT_NEON("NeonMaximumWorkload_Execute");
+    m_MaxLayer.run();
+}
+
+} //namespace armnn
diff --git a/src/backends/neon/workloads/NeonMaximumWorkload.hpp b/src/backends/neon/workloads/NeonMaximumWorkload.hpp
new file mode 100644
index 0000000000..59e2d6104d
--- /dev/null
+++ b/src/backends/neon/workloads/NeonMaximumWorkload.hpp
@@ -0,0 +1,30 @@
+//
+// Copyright © 2017 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#pragma once
+
+#include <neon/workloads/NeonWorkloadUtils.hpp>
+
+#include <arm_compute/runtime/NEON/functions/NEElementwiseOperations.h>
+
+namespace armnn
+{
+
+arm_compute::Status NeonMaximumWorkloadValidate(const TensorInfo& input0,
+                                                const TensorInfo& input1,
+                                                const TensorInfo& output);
+
+class NeonMaximumWorkload : public BaseWorkload<MaximumQueueDescriptor>
+{
+public:
+    NeonMaximumWorkload(const MaximumQueueDescriptor& descriptor, const WorkloadInfo& info);
+
+    virtual void Execute() const override;
+
+private:
+    mutable arm_compute::NEElementwiseMax m_MaxLayer;
+};
+
+} //namespace armnn
diff --git a/src/backends/neon/workloads/NeonWorkloads.hpp b/src/backends/neon/workloads/NeonWorkloads.hpp
index 48bd137560..82142f2aa1 100644
--- a/src/backends/neon/workloads/NeonWorkloads.hpp
+++ b/src/backends/neon/workloads/NeonWorkloads.hpp
@@ -16,6 +16,7 @@
 #include "NeonFullyConnectedWorkload.hpp"
 #include "NeonL2NormalizationFloatWorkload.hpp"
 #include "NeonLstmFloatWorkload.hpp"
+#include "NeonMaximumWorkload.hpp"
 #include "NeonMergerWorkload.hpp"
 #include "NeonMultiplicationFloatWorkload.hpp"
 #include "NeonNormalizationFloatWorkload.hpp"