IVGCVSW-6936 Add SQRT support to CL

Signed-off-by: Teresa Charlin <teresa.charlinreyes@arm.com>
Change-Id: Ib90bade63cd0437329c690b09cf719a2e2bd06a4

5 files changed, 106 insertions, 0 deletions

diff --git a/src/backends/cl/ClLayerSupport.cpp b/src/backends/cl/ClLayerSupport.cpp
index 09b3f43838..6b8cf52d87 100644
--- a/src/backends/cl/ClLayerSupport.cpp
+++ b/src/backends/cl/ClLayerSupport.cpp
@@ -74,6 +74,7 @@
 #include "workloads/ClSpaceToBatchNdWorkload.hpp"
 #include "workloads/ClSpaceToDepthWorkload.hpp"
 #include "workloads/ClSplitterWorkload.hpp"
+#include "workloads/ClSqrtWorkload.hpp"
 #include "workloads/ClStackWorkload.hpp"
 #include "workloads/ClStridedSliceWorkload.hpp"
 #include "workloads/ClSubtractionWorkload.hpp"
@@ -957,6 +958,11 @@ bool ClLayerSupport::IsElementwiseUnarySupported(const TensorInfo& input,
                                            reasonIfUnsupported,
                                            input,
                                            output);
+        case UnaryOperation::Sqrt:
+            FORWARD_WORKLOAD_VALIDATE_FUNC(ClSqrtWorkloadValidate,
+                                           reasonIfUnsupported,
+                                           input,
+                                           output);
         default:
             return false;
     }
diff --git a/src/backends/cl/backend.mk b/src/backends/cl/backend.mk
index ed0d9252ad..bf9689a6e9 100644
--- a/src/backends/cl/backend.mk
+++ b/src/backends/cl/backend.mk
@@ -82,6 +82,7 @@ BACKEND_SOURCES := \
         workloads/ClSpaceToBatchNdWorkload.cpp \
         workloads/ClSpaceToDepthWorkload.cpp \
         workloads/ClSplitterWorkload.cpp \
+        workloads/ClSqrtWorkload.cpp \
         workloads/ClStackWorkload.cpp \
         workloads/ClStridedSliceWorkload.cpp \
         workloads/ClSubtractionWorkload.cpp \
diff --git a/src/backends/cl/workloads/CMakeLists.txt b/src/backends/cl/workloads/CMakeLists.txt
index 52326ae4a9..59e11cdf9f 100644
--- a/src/backends/cl/workloads/CMakeLists.txt
+++ b/src/backends/cl/workloads/CMakeLists.txt
@@ -117,6 +117,8 @@ list(APPEND armnnClBackendWorkloads_sources
     ClSpaceToDepthWorkload.hpp
     ClSplitterWorkload.cpp
     ClSplitterWorkload.hpp
+    ClSqrtWorkload.cpp
+    ClSqrtWorkload.hpp
     ClStackWorkload.cpp
     ClStackWorkload.hpp
     ClStridedSliceWorkload.cpp
diff --git a/src/backends/cl/workloads/ClSqrtWorkload.cpp b/src/backends/cl/workloads/ClSqrtWorkload.cpp
new file mode 100644
index 0000000000..b78c114cf7
--- /dev/null
+++ b/src/backends/cl/workloads/ClSqrtWorkload.cpp
@@ -0,0 +1,67 @@
+//
+// Copyright © 2022 Arm Ltd and Contributors. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include "ClSqrtWorkload.hpp"
+
+#include "ClWorkloadUtils.hpp"
+
+#include <aclCommon/ArmComputeTensorUtils.hpp>
+#include <aclCommon/ArmComputeUtils.hpp>
+#include <armnn/utility/PolymorphicDowncast.hpp>
+
+#include <cl/ClTensorHandle.hpp>
+
+namespace armnn
+{
+
+arm_compute::Status ClSqrtWorkloadValidate(const TensorInfo& input, const TensorInfo& output)
+{
+    const arm_compute::TensorInfo aclInput  = armcomputetensorutils::BuildArmComputeTensorInfo(input);
+    const arm_compute::TensorInfo aclOutput = armcomputetensorutils::BuildArmComputeTensorInfo(output);
+
+    ActivationDescriptor descriptor;
+    descriptor.m_Function = ActivationFunction::Sqrt;
+    const arm_compute::ActivationLayerInfo activationLayerInfo =
+            ConvertActivationDescriptorToAclActivationLayerInfo(descriptor);
+
+    return arm_compute::CLActivationLayer::validate(&aclInput, &aclOutput, activationLayerInfo);
+}
+
+ClSqrtWorkload::ClSqrtWorkload(const ElementwiseUnaryQueueDescriptor& descriptor,
+                               const WorkloadInfo& info,
+                               const arm_compute::CLCompileContext& clCompileContext)
+    : ClBaseWorkload<ElementwiseUnaryQueueDescriptor>(descriptor, info)
+{
+    ARMNN_ASSERT(descriptor.m_Parameters.m_Operation == UnaryOperation::Sqrt);
+
+    // Report Profiling Details
+    ARMNN_REPORT_PROFILING_WORKLOAD_DESC("ClSqrtWorkload_Construct",
+                                         descriptor.m_Parameters,
+                                         info,
+                                         this->GetGuid());
+
+    m_Data.ValidateInputsOutputs("ClSqrtWorkload", 1, 1);
+
+    ActivationDescriptor activationDescriptor;
+    activationDescriptor.m_Function = ActivationFunction::Sqrt;
+    const arm_compute::ActivationLayerInfo activationLayerInfo =
+            ConvertActivationDescriptorToAclActivationLayerInfo(activationDescriptor);
+
+    arm_compute::ICLTensor& input  = PolymorphicDowncast<ClTensorHandle*>(m_Data.m_Inputs[0])->GetTensor();
+    arm_compute::ICLTensor& output = PolymorphicDowncast<ClTensorHandle*>(m_Data.m_Outputs[0])->GetTensor();
+
+    {
+        ARMNN_SCOPED_PROFILING_EVENT(Compute::Undefined, "ClSqrtWorkload_configure");
+        m_SqrtLayer.configure(clCompileContext, &input, &output, activationLayerInfo);
+    }
+}
+
+void ClSqrtWorkload::Execute() const
+{
+    ARMNN_SCOPED_PROFILING_EVENT_CL_GUID("ClSqrtWorkload_Execute", this->GetGuid());
+    RunClFunction(m_SqrtLayer, CHECK_LOCATION());
+}
+
+} // namespace armnn
diff --git a/src/backends/cl/workloads/ClSqrtWorkload.hpp b/src/backends/cl/workloads/ClSqrtWorkload.hpp
new file mode 100644
index 0000000000..0476800192
--- /dev/null
+++ b/src/backends/cl/workloads/ClSqrtWorkload.hpp
@@ -0,0 +1,30 @@
+//
+// Copyright © 2022 Arm Ltd and Contributors. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#pragma once
+
+#include "ClBaseWorkload.hpp"
+
+#include <arm_compute/core/Error.h>
+#include <arm_compute/runtime/CL/functions/CLActivationLayer.h>
+
+namespace armnn
+{
+
+arm_compute::Status ClSqrtWorkloadValidate(const TensorInfo& input, const TensorInfo& output);
+
+class ClSqrtWorkload : public ClBaseWorkload<ElementwiseUnaryQueueDescriptor>
+{
+public:
+    ClSqrtWorkload(const ElementwiseUnaryQueueDescriptor& descriptor,
+                   const WorkloadInfo& info,
+                   const arm_compute::CLCompileContext& clCompileContext);
+    virtual void Execute() const override;
+
+private:
+    mutable arm_compute::CLActivationLayer m_SqrtLayer;
+};
+
+} // namespace armnn