IVGCVSW-3846 Add NEON GATHER Workload

Signed-off-by: Teresa Charlin <teresa.charlinreyes@arm.com>
Change-Id: I1a66fdad63cef16866d9dfcb8a339647f856e1d4

1 files changed, 46 insertions, 0 deletions

diff --git a/src/backends/neon/workloads/NeonGatherWorkload.cpp b/src/backends/neon/workloads/NeonGatherWorkload.cpp
new file mode 100644
index 0000000000..2e7c741781
--- /dev/null
+++ b/src/backends/neon/workloads/NeonGatherWorkload.cpp
@@ -0,0 +1,46 @@
+//
+// Copyright © 2020 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include "NeonGatherWorkload.hpp"
+#include "NeonWorkloadUtils.hpp"
+#include <armnn/utility/PolymorphicDowncast.hpp>
+#include <aclCommon/ArmComputeUtils.hpp>
+
+namespace armnn
+{
+arm_compute::Status NeonGatherWorkloadValidate(const TensorInfo& input,
+                                               const TensorInfo& indices,
+                                               const TensorInfo& output)
+{
+    const arm_compute::TensorInfo aclInput   = BuildArmComputeTensorInfo(input);
+    const arm_compute::TensorInfo aclIndices = BuildArmComputeTensorInfo(indices);
+    const arm_compute::TensorInfo aclOutput  = BuildArmComputeTensorInfo(output);
+
+    int aclAxis = ComputeAclAxis(0, input);
+
+    return arm_compute::NEGather::validate(&aclInput, &aclIndices, &aclOutput, aclAxis);
+}
+
+NeonGatherWorkload::NeonGatherWorkload(const GatherQueueDescriptor& descriptor,
+                                       const WorkloadInfo& info)
+        : BaseWorkload<GatherQueueDescriptor>(descriptor, info)
+{
+    m_Data.ValidateInputsOutputs("NeonGatherWorkload", 1, 1);
+
+    arm_compute::ITensor& input   = PolymorphicDowncast<IAclTensorHandle*>(m_Data.m_Inputs[0])->GetTensor();
+    arm_compute::ITensor& indices = PolymorphicDowncast<IAclTensorHandle*>(m_Data.m_Inputs[1])->GetTensor();
+    arm_compute::ITensor& output  = PolymorphicDowncast<IAclTensorHandle*>(m_Data.m_Outputs[0])->GetTensor();
+
+    int aclAxis = ComputeAclAxis(0, info.m_InputTensorInfos[0]);
+
+    m_Layer.configure(&input, &indices, &output, aclAxis);
+}
+
+void NeonGatherWorkload::Execute() const
+{
+    ARMNN_SCOPED_PROFILING_EVENT_NEON("NeonGatherWorkload_Execute");
+    m_Layer.run();
+}
+} //namespace armnn
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