Make CL Elementwise Unary kernels and functions state-less

Resolves COMPMID-4004

Change-Id: I1dfe8bc52c1ff394ea208ba98b51033c738746a4
Signed-off-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/4922
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>

6 files changed, 461 insertions, 155 deletions

diff --git a/src/runtime/CL/functions/CLElementWiseUnaryLayer.cpp b/src/runtime/CL/functions/CLElementWiseUnaryLayer.cpp
index 0ded640f51..dbf2121bfd 100644
--- a/src/runtime/CL/functions/CLElementWiseUnaryLayer.cpp
+++ b/src/runtime/CL/functions/CLElementWiseUnaryLayer.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018-2020 Arm Limited.
+ * Copyright (c) 2018-2021 Arm Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -23,104 +23,18 @@
  */
 #include "arm_compute/runtime/CL/functions/CLElementWiseUnaryLayer.h"
 
-#include "src/core/CL/kernels/CLElementWiseUnaryLayerKernel.h"
-
-#include <utility>
+#include "arm_compute/core/CL/CLKernelLibrary.h"
+#include "arm_compute/core/CL/ICLTensor.h"
+#include "src/core/CL/ICLKernel.h"
+#include "src/runtime/gpu/cl/operators/ClElementwiseUnary.h"
 
 namespace arm_compute
 {
-namespace experimental
-{
-void CLRsqrt::configure(const CLCompileContext &compile_context, const ITensorInfo *input, ITensorInfo *output)
-{
-    auto k = std::make_unique<CLElementWiseUnaryLayerKernel>();
-    k->configure(compile_context, input, output, ElementWiseUnary::RSQRT);
-    _kernel = std::move(k);
-}
-
-Status CLRsqrt::validate(const ITensorInfo *input, const ITensorInfo *output)
-{
-    return arm_compute::CLElementWiseUnaryLayerKernel::validate(input, output, ElementWiseUnary::RSQRT);
-}
-
-void CLExp::configure(const CLCompileContext &compile_context, const ITensorInfo *input, ITensorInfo *output)
-{
-    auto k = std::make_unique<CLElementWiseUnaryLayerKernel>();
-    k->configure(compile_context, input, output, ElementWiseUnary::EXP);
-    _kernel = std::move(k);
-}
-
-Status CLExp::validate(const ITensorInfo *input, const ITensorInfo *output)
-{
-    return arm_compute::CLElementWiseUnaryLayerKernel::validate(input, output, ElementWiseUnary::EXP);
-}
-
-void CLNeg::configure(const CLCompileContext &compile_context, const ITensorInfo *input, ITensorInfo *output)
-{
-    auto k = std::make_unique<CLElementWiseUnaryLayerKernel>();
-    k->configure(compile_context, input, output, ElementWiseUnary::NEG);
-    _kernel = std::move(k);
-}
-
-Status CLNeg::validate(const ITensorInfo *input, const ITensorInfo *output)
-{
-    return arm_compute::CLElementWiseUnaryLayerKernel::validate(input, output, ElementWiseUnary::NEG);
-}
-
-void CLSin::configure(const CLCompileContext &compile_context, const ITensorInfo *input, ITensorInfo *output)
-{
-    auto k = std::make_unique<CLElementWiseUnaryLayerKernel>();
-    k->configure(compile_context, input, output, ElementWiseUnary::SIN);
-    _kernel = std::move(k);
-}
-
-Status CLSin::validate(const ITensorInfo *input, const ITensorInfo *output)
-{
-    return arm_compute::CLElementWiseUnaryLayerKernel::validate(input, output, ElementWiseUnary::SIN);
-}
-
-void CLAbs::configure(const CLCompileContext &compile_context, const ITensorInfo *input, ITensorInfo *output)
-{
-    auto k = std::make_unique<CLElementWiseUnaryLayerKernel>();
-    k->configure(compile_context, input, output, ElementWiseUnary::ABS);
-    _kernel = std::move(k);
-}
-
-Status CLAbs::validate(const ITensorInfo *input, const ITensorInfo *output)
-{
-    return arm_compute::CLElementWiseUnaryLayerKernel::validate(input, output, ElementWiseUnary::ABS);
-}
-
-void CLLog::configure(const CLCompileContext &compile_context, const ITensorInfo *input, ITensorInfo *output)
-{
-    auto k = std::make_unique<CLElementWiseUnaryLayerKernel>();
-    k->configure(compile_context, input, output, ElementWiseUnary::LOG);
-    _kernel = std::move(k);
-}
-
-Status CLLog::validate(const ITensorInfo *input, const ITensorInfo *output)
-{
-    return arm_compute::CLElementWiseUnaryLayerKernel::validate(input, output, ElementWiseUnary::LOG);
-}
-
-void CLRound::configure(const CLCompileContext &compile_context, const ITensorInfo *input, ITensorInfo *output)
-{
-    auto k = std::make_unique<CLElementWiseUnaryLayerKernel>();
-    k->configure(compile_context, input, output, ElementWiseUnary::ROUND);
-    _kernel = std::move(k);
-}
-
-Status CLRound::validate(const ITensorInfo *input, const ITensorInfo *output)
-{
-    return arm_compute::CLElementWiseUnaryLayerKernel::validate(input, output, ElementWiseUnary::ROUND);
-}
-} // namespace experimental
-
 struct CLRsqrtLayer::Impl
 {
-    const ICLTensor                       *src{ nullptr };
-    ICLTensor                             *dst{ nullptr };
-    std::unique_ptr<experimental::CLRsqrt> op{ nullptr };
+    const ICLTensor                 *src{ nullptr };
+    ICLTensor                       *dst{ nullptr };
+    std::unique_ptr<opencl::ClRsqrt> op{ nullptr };
 };
 
 CLRsqrtLayer::CLRsqrtLayer()
@@ -141,13 +55,13 @@ void CLRsqrtLayer::configure(const CLCompileContext &compile_context, const ICLT
 {
     _impl->src = input;
     _impl->dst = output;
-    _impl->op  = std::make_unique<experimental::CLRsqrt>();
+    _impl->op  = std::make_unique<opencl::ClRsqrt>();
     _impl->op->configure(compile_context, input->info(), output->info());
 }
 
 Status CLRsqrtLayer::validate(const ITensorInfo *input, const ITensorInfo *output)
 {
-    return experimental::CLRsqrt::validate(input, output);
+    return opencl::ClRsqrt::validate(input, output);
 }
 
 void CLRsqrtLayer::run()
@@ -160,9 +74,9 @@ void CLRsqrtLayer::run()
 
 struct CLExpLayer::Impl
 {
-    const ICLTensor                     *src{ nullptr };
-    ICLTensor                           *dst{ nullptr };
-    std::unique_ptr<experimental::CLExp> op{ nullptr };
+    const ICLTensor               *src{ nullptr };
+    ICLTensor                     *dst{ nullptr };
+    std::unique_ptr<opencl::ClExp> op{ nullptr };
 };
 
 CLExpLayer::CLExpLayer()
@@ -183,13 +97,13 @@ void CLExpLayer::configure(const CLCompileContext &compile_context, const ICLTen
 {
     _impl->src = input;
     _impl->dst = output;
-    _impl->op  = std::make_unique<experimental::CLExp>();
+    _impl->op  = std::make_unique<opencl::ClExp>();
     _impl->op->configure(compile_context, input->info(), output->info());
 }
 
 Status CLExpLayer::validate(const ITensorInfo *input, const ITensorInfo *output)
 {
-    return experimental::CLExp::validate(input, output);
+    return opencl::ClExp::validate(input, output);
 }
 
 void CLExpLayer::run()
@@ -202,9 +116,9 @@ void CLExpLayer::run()
 
 struct CLNegLayer::Impl
 {
-    const ICLTensor                     *src{ nullptr };
-    ICLTensor                           *dst{ nullptr };
-    std::unique_ptr<experimental::CLNeg> op{ nullptr };
+    const ICLTensor               *src{ nullptr };
+    ICLTensor                     *dst{ nullptr };
+    std::unique_ptr<opencl::ClNeg> op{ nullptr };
 };
 
 CLNegLayer::CLNegLayer()
@@ -225,12 +139,12 @@ void CLNegLayer::configure(const CLCompileContext &compile_context, const ICLTen
 {
     _impl->src = input;
     _impl->dst = output;
-    _impl->op  = std::make_unique<experimental::CLNeg>();
+    _impl->op  = std::make_unique<opencl::ClNeg>();
     _impl->op->configure(compile_context, input->info(), output->info());
 }
 Status CLNegLayer::validate(const ITensorInfo *input, const ITensorInfo *output)
 {
-    return experimental::CLNeg::validate(input, output);
+    return opencl::ClNeg::validate(input, output);
 }
 
 void CLNegLayer::run()
@@ -243,9 +157,9 @@ void CLNegLayer::run()
 
 struct CLSinLayer::Impl
 {
-    const ICLTensor                     *src{ nullptr };
-    ICLTensor                           *dst{ nullptr };
-    std::unique_ptr<experimental::CLSin> op{ nullptr };
+    const ICLTensor               *src{ nullptr };
+    ICLTensor                     *dst{ nullptr };
+    std::unique_ptr<opencl::ClSin> op{ nullptr };
 };
 
 CLSinLayer::CLSinLayer()
@@ -266,12 +180,12 @@ void CLSinLayer::configure(const CLCompileContext &compile_context, const ICLTen
 {
     _impl->src = input;
     _impl->dst = output;
-    _impl->op  = std::make_unique<experimental::CLSin>();
+    _impl->op  = std::make_unique<opencl::ClSin>();
     _impl->op->configure(compile_context, input->info(), output->info());
 }
 Status CLSinLayer::validate(const ITensorInfo *input, const ITensorInfo *output)
 {
-    return experimental::CLSin::validate(input, output);
+    return opencl::ClSin::validate(input, output);
 }
 
 void CLSinLayer::run()
@@ -284,9 +198,9 @@ void CLSinLayer::run()
 
 struct CLAbsLayer::Impl
 {
-    const ICLTensor                     *src{ nullptr };
-    ICLTensor                           *dst{ nullptr };
-    std::unique_ptr<experimental::CLAbs> op{ nullptr };
+    const ICLTensor               *src{ nullptr };
+    ICLTensor                     *dst{ nullptr };
+    std::unique_ptr<opencl::ClAbs> op{ nullptr };
 };
 
 CLAbsLayer::CLAbsLayer()
@@ -307,12 +221,12 @@ void CLAbsLayer::configure(const CLCompileContext &compile_context, const ICLTen
 {
     _impl->src = input;
     _impl->dst = output;
-    _impl->op  = std::make_unique<experimental::CLAbs>();
+    _impl->op  = std::make_unique<opencl::ClAbs>();
     _impl->op->configure(compile_context, input->info(), output->info());
 }
 Status CLAbsLayer::validate(const ITensorInfo *input, const ITensorInfo *output)
 {
-    return experimental::CLAbs::validate(input, output);
+    return opencl::ClAbs::validate(input, output);
 }
 
 void CLAbsLayer::run()
@@ -325,9 +239,9 @@ void CLAbsLayer::run()
 
 struct CLLogLayer::Impl
 {
-    const ICLTensor                     *src{ nullptr };
-    ICLTensor                           *dst{ nullptr };
-    std::unique_ptr<experimental::CLLog> op{ nullptr };
+    const ICLTensor               *src{ nullptr };
+    ICLTensor                     *dst{ nullptr };
+    std::unique_ptr<opencl::ClLog> op{ nullptr };
 };
 
 CLLogLayer::CLLogLayer()
@@ -348,12 +262,12 @@ void CLLogLayer::configure(const CLCompileContext &compile_context, const ICLTen
 {
     _impl->src = input;
     _impl->dst = output;
-    _impl->op  = std::make_unique<experimental::CLLog>();
+    _impl->op  = std::make_unique<opencl::ClLog>();
     _impl->op->configure(compile_context, input->info(), output->info());
 }
 Status CLLogLayer::validate(const ITensorInfo *input, const ITensorInfo *output)
 {
-    return experimental::CLLog::validate(input, output);
+    return opencl::ClLog::validate(input, output);
 }
 
 void CLLogLayer::run()
@@ -366,9 +280,9 @@ void CLLogLayer::run()
 
 struct CLRoundLayer::Impl
 {
-    const ICLTensor                       *src{ nullptr };
-    ICLTensor                             *dst{ nullptr };
-    std::unique_ptr<experimental::CLRound> op{ nullptr };
+    const ICLTensor                 *src{ nullptr };
+    ICLTensor                       *dst{ nullptr };
+    std::unique_ptr<opencl::ClRound> op{ nullptr };
 };
 
 CLRoundLayer::CLRoundLayer()
@@ -389,12 +303,12 @@ void CLRoundLayer::configure(const CLCompileContext &compile_context, const ICLT
 {
     _impl->src = input;
     _impl->dst = output;
-    _impl->op  = std::make_unique<experimental::CLRound>();
+    _impl->op  = std::make_unique<opencl::ClRound>();
     _impl->op->configure(compile_context, input->info(), output->info());
 }
 Status CLRoundLayer::validate(const ITensorInfo *input, const ITensorInfo *output)
 {
-    return experimental::CLRound::validate(input, output);
+    return opencl::ClRound::validate(input, output);
 }
 
 void CLRoundLayer::run()
diff --git a/src/runtime/CL/functions/CLLogicalNot.cpp b/src/runtime/CL/functions/CLLogicalNot.cpp
index d3774da597..388d2bce86 100644
--- a/src/runtime/CL/functions/CLLogicalNot.cpp
+++ b/src/runtime/CL/functions/CLLogicalNot.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020 Arm Limited.
+ * Copyright (c) 2020-2021 Arm Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -22,38 +22,19 @@
  * SOFTWARE.
  */
 #include "arm_compute/runtime/CL/functions/CLLogicalNot.h"
-#include "arm_compute/core/CL/ICLTensor.h"
-#include "src/core/CL/kernels/CLElementWiseUnaryLayerKernel.h"
 
-#include <utility>
+#include "arm_compute/core/CL/CLKernelLibrary.h"
+#include "arm_compute/core/CL/ICLTensor.h"
+#include "src/core/CL/ICLKernel.h"
+#include "src/runtime/gpu/cl/operators/ClLogicalNot.h"
 
 namespace arm_compute
 {
-namespace experimental
-{
-void CLLogicalNot::configure(const CLCompileContext &compile_context, const ITensorInfo *input, ITensorInfo *output)
-{
-    auto k = std::make_unique<CLElementWiseUnaryLayerKernel>();
-    k->configure(compile_context, input, output, ElementWiseUnary::LOGICAL_NOT);
-    _kernel = std::move(k);
-}
-
-Status CLLogicalNot::validate(const ITensorInfo *input, const ITensorInfo *output)
-{
-    return CLElementWiseUnaryLayerKernel::validate(input, output, ElementWiseUnary::LOGICAL_NOT);
-}
-
-void CLLogicalNot::run(ITensorPack &tensors)
-{
-    ICLOperator::run(tensors);
-}
-} // namespace experimental
-
 struct CLLogicalNot::Impl
 {
-    const ICLTensor                            *src{ nullptr };
-    ICLTensor                                  *dst{ nullptr };
-    std::unique_ptr<experimental::CLLogicalNot> op{ nullptr };
+    const ICLTensor                      *src{ nullptr };
+    ICLTensor                            *dst{ nullptr };
+    std::unique_ptr<opencl::ClLogicalNot> op{ nullptr };
 };
 
 CLLogicalNot::CLLogicalNot()
@@ -73,13 +54,13 @@ void CLLogicalNot::configure(const CLCompileContext &compile_context, const ICLT
 {
     _impl->src = input;
     _impl->dst = output;
-    _impl->op  = std::make_unique<experimental::CLLogicalNot>();
+    _impl->op  = std::make_unique<opencl::ClLogicalNot>();
     _impl->op->configure(compile_context, input->info(), output->info());
 }
 
 Status CLLogicalNot::validate(const ITensorInfo *input, const ITensorInfo *output)
 {
-    return experimental::CLLogicalNot::validate(input, output);
+    return opencl::ClLogicalNot::validate(input, output);
 }
 
 void CLLogicalNot::run()
diff --git a/src/runtime/gpu/cl/operators/ClElementwiseUnary.cpp b/src/runtime/gpu/cl/operators/ClElementwiseUnary.cpp
new file mode 100644
index 0000000000..7b830a077f
--- /dev/null
+++ b/src/runtime/gpu/cl/operators/ClElementwiseUnary.cpp
@@ -0,0 +1,116 @@
+/*
+ * Copyright (c) 2021 Arm Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include "src/runtime/gpu/cl/operators/ClElementwiseUnary.h"
+
+#include "src/core/gpu/cl/kernels/ClElementwiseUnaryKernel.h"
+
+namespace arm_compute
+{
+namespace opencl
+{
+void ClRsqrt::configure(const ClCompileContext &compile_context, const ITensorInfo *src, ITensorInfo *dst)
+{
+    auto k = std::make_unique<kernels::ClElementWiseUnaryKernel>();
+    k->configure(compile_context, src, dst, ElementWiseUnary::RSQRT);
+    _kernel = std::move(k);
+}
+
+Status ClRsqrt::validate(const ITensorInfo *src, const ITensorInfo *dst)
+{
+    return kernels::ClElementWiseUnaryKernel::validate(src, dst, ElementWiseUnary::RSQRT);
+}
+
+void ClExp::configure(const ClCompileContext &compile_context, const ITensorInfo *src, ITensorInfo *dst)
+{
+    auto k = std::make_unique<kernels::ClElementWiseUnaryKernel>();
+    k->configure(compile_context, src, dst, ElementWiseUnary::EXP);
+    _kernel = std::move(k);
+}
+
+Status ClExp::validate(const ITensorInfo *src, const ITensorInfo *dst)
+{
+    return kernels::ClElementWiseUnaryKernel::validate(src, dst, ElementWiseUnary::EXP);
+}
+
+void ClNeg::configure(const ClCompileContext &compile_context, const ITensorInfo *src, ITensorInfo *dst)
+{
+    auto k = std::make_unique<kernels::ClElementWiseUnaryKernel>();
+    k->configure(compile_context, src, dst, ElementWiseUnary::NEG);
+    _kernel = std::move(k);
+}
+
+Status ClNeg::validate(const ITensorInfo *src, const ITensorInfo *dst)
+{
+    return kernels::ClElementWiseUnaryKernel::validate(src, dst, ElementWiseUnary::NEG);
+}
+
+void ClSin::configure(const ClCompileContext &compile_context, const ITensorInfo *src, ITensorInfo *dst)
+{
+    auto k = std::make_unique<kernels::ClElementWiseUnaryKernel>();
+    k->configure(compile_context, src, dst, ElementWiseUnary::SIN);
+    _kernel = std::move(k);
+}
+
+Status ClSin::validate(const ITensorInfo *src, const ITensorInfo *dst)
+{
+    return kernels::ClElementWiseUnaryKernel::validate(src, dst, ElementWiseUnary::SIN);
+}
+
+void ClAbs::configure(const ClCompileContext &compile_context, const ITensorInfo *src, ITensorInfo *dst)
+{
+    auto k = std::make_unique<kernels::ClElementWiseUnaryKernel>();
+    k->configure(compile_context, src, dst, ElementWiseUnary::ABS);
+    _kernel = std::move(k);
+}
+
+Status ClAbs::validate(const ITensorInfo *src, const ITensorInfo *dst)
+{
+    return kernels::ClElementWiseUnaryKernel::validate(src, dst, ElementWiseUnary::ABS);
+}
+
+void ClLog::configure(const ClCompileContext &compile_context, const ITensorInfo *src, ITensorInfo *dst)
+{
+    auto k = std::make_unique<kernels::ClElementWiseUnaryKernel>();
+    k->configure(compile_context, src, dst, ElementWiseUnary::LOG);
+    _kernel = std::move(k);
+}
+
+Status ClLog::validate(const ITensorInfo *src, const ITensorInfo *dst)
+{
+    return kernels::ClElementWiseUnaryKernel::validate(src, dst, ElementWiseUnary::LOG);
+}
+
+void ClRound::configure(const ClCompileContext &compile_context, const ITensorInfo *src, ITensorInfo *dst)
+{
+    auto k = std::make_unique<kernels::ClElementWiseUnaryKernel>();
+    k->configure(compile_context, src, dst, ElementWiseUnary::ROUND);
+    _kernel = std::move(k);
+}
+
+Status ClRound::validate(const ITensorInfo *src, const ITensorInfo *dst)
+{
+    return kernels::ClElementWiseUnaryKernel::validate(src, dst, ElementWiseUnary::ROUND);
+}
+} // namespace opencl
+} // namespace arm_compute
diff --git a/src/runtime/gpu/cl/operators/ClElementwiseUnary.h b/src/runtime/gpu/cl/operators/ClElementwiseUnary.h
new file mode 100644
index 0000000000..b40e3e9a3b
--- /dev/null
+++ b/src/runtime/gpu/cl/operators/ClElementwiseUnary.h
@@ -0,0 +1,192 @@
+/*
+ * Copyright (c) 2021 Arm Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef ARM_COMPUTE_CL_ELEMENTWISE_UNARY_H
+#define ARM_COMPUTE_CL_ELEMENTWISE_UNARY_H
+
+#include "src/core/gpu/cl/ClCompileContext.h"
+#include "src/runtime/gpu/cl/IClOperator.h"
+
+namespace arm_compute
+{
+namespace opencl
+{
+/** Basic function to perform inverse square root on an src tensor. */
+class ClRsqrt : public IClOperator
+{
+public:
+    /** Constructor */
+    ClRsqrt() = default;
+    /** Initialize the function
+     *
+     * @param[in]  compile_context The compile context to be used.
+     * @param[in]  src             Source tensor info. Data types supported: F16/F32.
+     * @param[out] dst             Destination tensor info. Data types supported: same as @p src.
+     */
+    void configure(const ClCompileContext &compile_context, const ITensorInfo *src, ITensorInfo *dst);
+    /** Static function to check if given info will lead to a valid configuration of @ref ClRsqrt
+     *
+     * @param[in] src First source tensor info. Data types supported: F16/F32.
+     * @param[in] dst Destination tensor info. Data types supported: same as @p src.
+     *
+     * @return a status
+     */
+    static Status validate(const ITensorInfo *src, const ITensorInfo *dst);
+};
+
+/** Basic function to perform exponential on an src tensor. */
+class ClExp : public IClOperator
+{
+public:
+    /** Constructor */
+    ClExp() = default;
+    /** Initialize the function
+     *
+     * @param[in]  compile_context The compile context to be used.
+     * @param[in]  src             Source tensor info. Data types supported: F16/F32.
+     * @param[out] dst             Destination tensor info. Data types supported: same as @p src.
+     */
+    void configure(const ClCompileContext &compile_context, const ITensorInfo *src, ITensorInfo *dst);
+    /** Static function to check if given info will lead to a valid configuration of @ref ClExp
+     *
+     * @param[in] src First source tensor info. Data types supported: F16/F32.
+     * @param[in] dst Destination tensor info. Data types supported: same as @p src.
+     *
+     * @return a status
+     */
+    static Status validate(const ITensorInfo *src, const ITensorInfo *dst);
+};
+
+/** Basic function to negate an src tensor. */
+class ClNeg : public IClOperator
+{
+public:
+    /** Constructor */
+    ClNeg() = default;
+    /** Initialize the function
+     *
+     * @param[in]  compile_context The compile context to be used.
+     * @param[in]  src             Source tensor info. Data types supported: F16/F32.
+     * @param[out] dst             Destination tensor info. Data types supported: same as @p src.
+     */
+    void configure(const ClCompileContext &compile_context, const ITensorInfo *src, ITensorInfo *dst);
+    /** Static function to check if given info will lead to a valid configuration of @ref ClNeg
+     *
+     * @param[in] src First source tensor info. Data types supported: F16/F32.
+     * @param[in] dst Destination tensor info. Data types supported: same as @p src.
+     *
+     * @return a status
+     */
+    static Status validate(const ITensorInfo *src, const ITensorInfo *dst);
+};
+
+/** Basic function to calculate sine of an src tensor. */
+class ClSin : public IClOperator
+{
+public:
+    /** Constructor */
+    ClSin() = default;
+    /** Initialize the function
+     *
+     * @param[in]  compile_context The compile context to be used.
+     * @param[in]  src             Source tensor info. Data types supported: F16/F32.
+     * @param[out] dst             Destination tensor info. Data types supported: same as @p src.
+     */
+    void configure(const ClCompileContext &compile_context, const ITensorInfo *src, ITensorInfo *dst);
+    /** Static function to check if given info will lead to a valid configuration of @ref ClSin
+     *
+     * @param[in] src First source tensor info. Data types supported: F16/F32.
+     * @param[in] dst Destination tensor info. Data types supported: same as @p src.
+     *
+     * @return a status
+     */
+    static Status validate(const ITensorInfo *src, const ITensorInfo *dst);
+};
+
+/** Basic function to perform elementwise log on an src tensor. */
+class ClLog : public IClOperator
+{
+public:
+    /** Constructor */
+    ClLog() = default;
+    /** Initialize the function
+     *
+     * @param[in]  compile_context The compile context to be used.
+     * @param[in]  src             Source tensor info. Data types supported: F16/F32.
+     * @param[out] dst             Destination tensor info. Data types supported: same as @p src.
+     */
+    void configure(const ClCompileContext &compile_context, const ITensorInfo *src, ITensorInfo *dst);
+    /** Static function to check if given info will lead to a valid configuration of @ref ClLog
+     *
+     * @param[in] src First source tensor info. Data types supported: F16/F32.
+     * @param[in] dst Destination tensor info. Data types supported: same as @p src.
+     *
+     * @return a status
+     */
+    static Status validate(const ITensorInfo *src, const ITensorInfo *dst);
+};
+
+/** Basic function to get the absolute value of an src tensor. */
+class ClAbs : public IClOperator
+{
+public:
+    /** Initialize the function
+     *
+     * @param[in]  compile_context The compile context to be used.
+     * @param[in]  src             Source tensor info. Data types supported: F16/F32.
+     * @param[out] dst             Destination tensor info. Data types supported: same as @p src.
+     */
+    void configure(const ClCompileContext &compile_context, const ITensorInfo *src, ITensorInfo *dst);
+    /** Static function to check if given info will lead to a valid configuration of @ref ClAbs
+     *
+     * @param[in] src First source tensor info. Data types supported: F16/F32.
+     * @param[in] dst Destination tensor info. Data types supported: same as @p src.
+     *
+     * @return a status
+     */
+    static Status validate(const ITensorInfo *src, const ITensorInfo *dst);
+};
+
+/** Basic function to get the round (to the nearest even) value of an src tensor. */
+class ClRound : public IClOperator
+{
+public:
+    /** Initialize the function
+     *
+     * @param[in]  compile_context The compile context to be used.
+     * @param[in]  src             Source tensor info. Data types supported: F16/F32.
+     * @param[out] dst             Destination tensor info. Data types supported: same as @p src.
+     */
+    void configure(const ClCompileContext &compile_context, const ITensorInfo *src, ITensorInfo *dst);
+    /** Static function to check if given info will lead to a valid configuration of @ref ClRound
+     *
+     * @param[in] src First source tensor info. Data types supported: F16/F32.
+     * @param[in] dst Destination tensor info. Data types supported: same as @p src.
+     *
+     * @return a status
+     */
+    static Status validate(const ITensorInfo *src, const ITensorInfo *dst);
+};
+} // namespace opencl
+} // namespace arm_compute
+#endif /* ARM_COMPUTE_CL_ELEMENTWISE_UNARY_H */
diff --git a/src/runtime/gpu/cl/operators/ClLogicalNot.cpp b/src/runtime/gpu/cl/operators/ClLogicalNot.cpp
new file mode 100644
index 0000000000..400efe450d
--- /dev/null
+++ b/src/runtime/gpu/cl/operators/ClLogicalNot.cpp
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2017-2021 Arm Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include "src/runtime/gpu/cl/operators/ClLogicalNot.h"
+
+#include "src/core/gpu/cl/ClCompileContext.h"
+#include "src/core/gpu/cl/kernels/ClElementwiseUnaryKernel.h"
+
+namespace arm_compute
+{
+namespace opencl
+{
+void ClLogicalNot::configure(const ClCompileContext &compile_context, const ITensorInfo *src, ITensorInfo *dst)
+{
+    auto k = std::make_unique<kernels::ClElementWiseUnaryKernel>();
+    k->configure(compile_context, src, dst, ElementWiseUnary::LOGICAL_NOT);
+    _kernel = std::move(k);
+}
+
+Status ClLogicalNot::validate(const ITensorInfo *src, const ITensorInfo *dst)
+{
+    return kernels::ClElementWiseUnaryKernel::validate(src, dst, ElementWiseUnary::LOGICAL_NOT);
+}
+} // namespace opencl
+} // namespace arm_compute
diff --git a/src/runtime/gpu/cl/operators/ClLogicalNot.h b/src/runtime/gpu/cl/operators/ClLogicalNot.h
new file mode 100644
index 0000000000..25ddf564b5
--- /dev/null
+++ b/src/runtime/gpu/cl/operators/ClLogicalNot.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2021 Arm Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef ARM_COMPUTE_CL_LOGICAL_NOT_H
+#define ARM_COMPUTE_CL_LOGICAL_NOT_H
+
+#include "src/core/gpu/cl/ClCompileContext.h"
+#include "src/runtime/gpu/cl/IClOperator.h"
+
+namespace arm_compute
+{
+namespace opencl
+{
+/** Basic function to run @ref kernels::ClElementWiseUnaryKernel for NOT operation */
+class ClLogicalNot : public IClOperator
+{
+public:
+    /** Constructor */
+    ClLogicalNot() = default;
+    /** Configure operator for a given list of arguments
+     *
+     * @param[in]  compile_context The compile context to be used.
+     * @param[in]  src             Source tensor info. Data types supported: U8.
+     * @param[out] dst             Destination tensor info. Data types supported: same as @p src.
+     */
+    void configure(const CLCompileContext &compile_context, const ITensorInfo *src, ITensorInfo *dst);
+    /** Static function to check if given info will lead to a valid configuration
+     *
+     * @param[in] src Soure tensor info. Data types supported: U8.
+     * @param[in] dst Destination tensor info. Data types supported: same as @p src.
+     *
+     * @return a status
+     */
+    static Status validate(const ITensorInfo *src, const ITensorInfo *dst);
+};
+} // namespace opencl
+} // namespace arm_compute
+#endif /* ARM_COMPUTE_CL_LOGICAL_NOT_H */