IVGCVSW-3148 Add Neon backend support for Dequantize

 * Add NeonDequantizeWorkload
 * Add IsDequantizeSupported to call validate from ACL function
 * Add CreateDequantize to NeonWorkloadFactory
 * Unit tests

Signed-off-by: Narumol Prangnawarat <narumol.prangnawarat@arm.com>
Change-Id: I96a216ef78cc3f6a57aa439a16ae6aafd783ff93

1 files changed, 48 insertions, 0 deletions

diff --git a/src/backends/neon/workloads/NeonDequantizeWorkload.cpp b/src/backends/neon/workloads/NeonDequantizeWorkload.cpp
new file mode 100644
index 0000000000..9840b48dd2
--- /dev/null
+++ b/src/backends/neon/workloads/NeonDequantizeWorkload.cpp
@@ -0,0 +1,48 @@
+//
+// Copyright © 2017 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include "NeonDequantizeWorkload.hpp"
+
+#include "NeonWorkloadUtils.hpp"
+
+#include <aclCommon/ArmComputeTensorUtils.hpp>
+#include <backendsCommon/CpuTensorHandle.hpp>
+#include <neon/NeonTensorHandle.hpp>
+
+namespace armnn
+{
+
+using namespace armcomputetensorutils;
+
+arm_compute::Status NeonDequantizeWorkloadValidate(const TensorInfo& input,
+                                                   const TensorInfo& output)
+{
+    const arm_compute::TensorInfo aclInput = BuildArmComputeTensorInfo(input);
+    const arm_compute::TensorInfo aclOutput = BuildArmComputeTensorInfo(output);
+
+    return arm_compute::NEDequantizationLayer::validate(&aclInput, &aclOutput);
+}
+
+NeonDequantizeWorkload::NeonDequantizeWorkload(const DequantizeQueueDescriptor& descriptor, const WorkloadInfo& info)
+        : BaseWorkload<DequantizeQueueDescriptor>(descriptor, info)
+{
+    m_Data.ValidateInputsOutputs("NeonDequantizeWorkload", 1, 1);
+
+    arm_compute::ITensor& input = boost::polymorphic_downcast<INeonTensorHandle*>(m_Data.m_Inputs[0])->GetTensor();
+    arm_compute::ITensor& output = boost::polymorphic_downcast<INeonTensorHandle*>(m_Data.m_Outputs[0])->GetTensor();
+
+    m_Layer.reset(new arm_compute::NEDequantizationLayer());
+    m_Layer->configure(&input, &output);
+    m_Layer->prepare();
+}
+
+void NeonDequantizeWorkload::Execute() const
+{
+    ARMNN_SCOPED_PROFILING_EVENT_NEON("NeonDequantizeWorkload_Execute");
+    m_Layer->run();
+}
+
+} //namespace armnn
+