IVGCVSW-3598 Add Neon backend support for Strided_Slice

Signed-off-by: FinnWilliamsArm <Finn.Williams@arm.com>
Change-Id: Ia9bf55ca93e36ad7fa052b70e477cd46078e0a30

1 files changed, 90 insertions, 0 deletions

diff --git a/src/backends/neon/workloads/NeonStridedSliceWorkload.cpp b/src/backends/neon/workloads/NeonStridedSliceWorkload.cpp
new file mode 100644
index 0000000000..9c24728004
--- /dev/null
+++ b/src/backends/neon/workloads/NeonStridedSliceWorkload.cpp
@@ -0,0 +1,90 @@
+//
+// Copyright © 2017 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include "NeonStridedSliceWorkload.hpp"
+
+#include "NeonWorkloadUtils.hpp"
+#include <neon/NeonTensorHandle.hpp>
+#include <aclCommon/ArmComputeUtils.hpp>
+#include <aclCommon/ArmComputeTensorUtils.hpp>
+
+
+namespace armnn
+{
+
+arm_compute::Status NeonStridedSliceWorkloadValidate(const TensorInfo& input,
+                                                     const TensorInfo& output,
+                                                     const StridedSliceDescriptor& descriptor)
+{
+    const arm_compute::TensorInfo aclInput = armcomputetensorutils::BuildArmComputeTensorInfo(input);
+    const arm_compute::TensorInfo aclOutput = armcomputetensorutils::BuildArmComputeTensorInfo(output);
+
+    arm_compute::Coordinates starts;
+    arm_compute::Coordinates ends;
+    arm_compute::Coordinates strides;
+
+    std::tie(starts, ends, strides) = SetNeonStridedSliceData(descriptor.m_Begin,
+                                                              descriptor.m_End,
+                                                              descriptor.m_Stride);
+
+    int32_t begin_mask = descriptor.m_BeginMask;
+    int32_t end_mask = descriptor.m_EndMask;
+    int32_t shrink_axis_mask = descriptor.m_ShrinkAxisMask;
+
+    return arm_compute::NEStridedSlice::validate(&aclInput,
+                                                 &aclOutput,
+                                                 starts,
+                                                 ends,
+                                                 strides,
+                                                 begin_mask,
+                                                 end_mask,
+                                                 shrink_axis_mask);
+}
+
+NeonStridedSliceWorkload::NeonStridedSliceWorkload(const StridedSliceQueueDescriptor& descriptor,
+                                                   const WorkloadInfo& info)
+        : BaseWorkload<StridedSliceQueueDescriptor>(descriptor, info)
+{
+    m_Data.ValidateInputsOutputs("NeonStridedSliceWorkload", 1, 1);
+
+    arm_compute::ITensor& input = boost::polymorphic_downcast<IAclTensorHandle*>(m_Data.m_Inputs[0])->GetTensor();
+    arm_compute::ITensor& output = boost::polymorphic_downcast<IAclTensorHandle*>(m_Data.m_Outputs[0])->GetTensor();
+
+    arm_compute::Coordinates starts;
+    arm_compute::Coordinates ends;
+    arm_compute::Coordinates strides;
+
+    std::tie(starts, ends, strides) = SetNeonStridedSliceData(m_Data.m_Parameters.m_Begin,
+                                                              m_Data.m_Parameters.m_End,
+                                                              m_Data.m_Parameters.m_Stride);
+
+    int32_t begin_mask = m_Data.m_Parameters.m_BeginMask;
+    int32_t end_mask = m_Data.m_Parameters.m_EndMask;
+    int32_t shrink_axis_mask = m_Data.m_Parameters.m_ShrinkAxisMask;
+
+    arm_compute::DataLayout aclDataLayout = ConvertDataLayout(m_Data.m_Parameters.m_DataLayout);
+    input.info()->set_data_layout(aclDataLayout);
+    output.info()->set_data_layout(aclDataLayout);
+
+    auto layer = std::make_unique<arm_compute::NEStridedSlice>();
+
+    layer->configure(&input,
+                     &output,
+                     starts,
+                     ends,
+                     strides,
+                     begin_mask,
+                     end_mask,
+                     shrink_axis_mask);
+    m_Layer.reset(layer.release());
+}
+
+void NeonStridedSliceWorkload::Execute() const
+{
+    ARMNN_SCOPED_PROFILING_EVENT_NEON("NeonStridedSliceWorkload_Execute");
+    m_Layer->run();
+}
+
+} //namespace armnn
\ No newline at end of file