IVGCVSW-3844 Add CL GATHER Workload

Signed-off-by: Teresa Charlin <teresa.charlinreyes@arm.com>
Change-Id: I3d44c05acb40566cd4149417fca5bfd260f301e1

1 files changed, 48 insertions, 0 deletions

diff --git a/src/backends/cl/workloads/ClGatherWorkload.cpp b/src/backends/cl/workloads/ClGatherWorkload.cpp
new file mode 100644
index 0000000000..068487039b
--- /dev/null
+++ b/src/backends/cl/workloads/ClGatherWorkload.cpp
@@ -0,0 +1,48 @@
+//
+// Copyright © 2020 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include "ClGatherWorkload.hpp"
+#include "ClWorkloadUtils.hpp"
+#include <aclCommon/ArmComputeUtils.hpp>
+#include <cl/ClTensorHandle.hpp>
+
+using namespace armnn::armcomputetensorutils;
+
+namespace armnn
+{
+arm_compute::Status ClGatherWorkloadValidate(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::CLGather::validate(&aclInput, &aclIndices, &aclOutput, aclAxis);
+}
+
+ClGatherWorkload::ClGatherWorkload(const GatherQueueDescriptor& descriptor,
+                                   const WorkloadInfo& info)
+        : BaseWorkload<GatherQueueDescriptor>(descriptor, info)
+{
+    m_Data.ValidateInputsOutputs("ClGatherWorkload", 1, 1);
+
+    arm_compute::ICLTensor& input    = static_cast<IClTensorHandle*>(m_Data.m_Inputs[0])->GetTensor();
+    arm_compute::ICLTensor& indices  = static_cast<IClTensorHandle*>(m_Data.m_Inputs[1])->GetTensor();
+    arm_compute::ICLTensor& output   = static_cast<IClTensorHandle*>(m_Data.m_Outputs[0])->GetTensor();
+
+    int aclAxis = ComputeAclAxis(0, info.m_InputTensorInfos[0]);
+
+    m_Layer.configure(&input, &indices, &output, aclAxis);
+};
+
+void ClGatherWorkload::Execute() const
+{
+    ARMNN_SCOPED_PROFILING_EVENT_CL("ClGatherWorkload_Execute");
+    RunClFunction(m_Layer, CHECK_LOCATION());
+}
+} // namespace armnn