Rename functions/classes for elementwise operations

* Create CpuElementwise operator
* Rename kernel classes
* Make the kernels stateless

Partially implements: COMPMID-4003

Change-Id: I4ef9c61a3acc3ac5dbe46463d62dcb88a5face21
Signed-off-by: Sang-Hoon Park <sang-hoon.park@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/4881
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Sheri Zhang <sheri.zhang@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>

1 files changed, 125 insertions, 0 deletions

diff --git a/src/runtime/cpu/operators/CpuElementwise.cpp b/src/runtime/cpu/operators/CpuElementwise.cpp
new file mode 100644
index 0000000000..322bd09c43
--- /dev/null
+++ b/src/runtime/cpu/operators/CpuElementwise.cpp
@@ -0,0 +1,125 @@
+/*
+ * 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/cpu/operators/CpuElementwise.h"
+#include "src/core/cpu/kernels/CpuElementwiseKernel.h"
+
+namespace arm_compute
+{
+namespace cpu
+{
+void CpuElementwiseMax::configure(const ITensorInfo *input1, const ITensorInfo *input2, ITensorInfo *output)
+{
+    auto k = std::make_unique<kernels::CpuArithmeticKernel>();
+    k->configure(ArithmeticOperation::MAX, input1, input2, output);
+    _kernel = std::move(k);
+}
+
+Status CpuElementwiseMax::validate(const ITensorInfo *input1, const ITensorInfo *input2, const ITensorInfo *output)
+{
+    return kernels::CpuArithmeticKernel::validate(ArithmeticOperation::MAX, input1, input2, output);
+}
+
+void CpuElementwiseMin::configure(const ITensorInfo *input1, const ITensorInfo *input2, ITensorInfo *output)
+{
+    auto k = std::make_unique<kernels::CpuArithmeticKernel>();
+    k->configure(ArithmeticOperation::MIN, input1, input2, output);
+    _kernel = std::move(k);
+}
+
+Status CpuElementwiseMin::validate(const ITensorInfo *input1, const ITensorInfo *input2, const ITensorInfo *output)
+{
+    return kernels::CpuArithmeticKernel::validate(ArithmeticOperation::MIN, input1, input2, output);
+}
+
+void CpuElementwiseSquaredDiff::configure(const ITensorInfo *input1, const ITensorInfo *input2, ITensorInfo *output)
+{
+    auto k = std::make_unique<kernels::CpuArithmeticKernel>();
+    k->configure(ArithmeticOperation::SQUARED_DIFF, input1, input2, output);
+    _kernel = std::move(k);
+}
+
+Status CpuElementwiseSquaredDiff::validate(const ITensorInfo *input1, const ITensorInfo *input2, const ITensorInfo *output)
+{
+    return kernels::CpuArithmeticKernel::validate(ArithmeticOperation::SQUARED_DIFF, input1, input2, output);
+}
+
+void CpuElementwiseDivision::configure(const ITensorInfo *input1, const ITensorInfo *input2, ITensorInfo *output)
+{
+    auto k = std::make_unique<kernels::CpuDivisionKernel>();
+    k->configure(input1, input2, output);
+    _kernel = std::move(k);
+}
+
+Status CpuElementwiseDivision::validate(const ITensorInfo *input1, const ITensorInfo *input2, const ITensorInfo *output)
+{
+    return kernels::CpuDivisionKernel::validate(input1, input2, output);
+}
+
+void CpuElementwisePower::configure(const ITensorInfo *input1, const ITensorInfo *input2, ITensorInfo *output)
+{
+    auto k = std::make_unique<kernels::CpuPowerKernel>();
+    k->configure(input1, input2, output);
+    _kernel = std::move(k);
+}
+
+Status CpuElementwisePower::validate(const ITensorInfo *input1, const ITensorInfo *input2, const ITensorInfo *output)
+{
+    return kernels::CpuPowerKernel::validate(input1, input2, output);
+}
+
+template <ComparisonOperation COP>
+void CpuElementwiseComparisonStatic<COP>::configure(const ITensorInfo *input1, const ITensorInfo *input2, ITensorInfo *output)
+{
+    auto k = std::make_unique<kernels::CpuComparisonKernel>();
+    k->configure(COP, input1, input2, output);
+    _kernel = std::move(k);
+}
+
+template <ComparisonOperation COP>
+Status CpuElementwiseComparisonStatic<COP>::validate(const ITensorInfo *input1, const ITensorInfo *input2, const ITensorInfo *output)
+{
+    return kernels::CpuComparisonKernel::validate(COP, input1, input2, output);
+}
+
+void CpuElementwiseComparison::configure(const ITensorInfo *input1, const ITensorInfo *input2, ITensorInfo *output, ComparisonOperation op)
+{
+    auto k = std::make_unique<kernels::CpuComparisonKernel>();
+    k->configure(op, input1, input2, output);
+    _kernel = std::move(k);
+}
+
+Status CpuElementwiseComparison::validate(const ITensorInfo *input1, const ITensorInfo *input2, const ITensorInfo *output, ComparisonOperation op)
+{
+    return kernels::CpuComparisonKernel::validate(op, input1, input2, output);
+}
+
+// Supported Specializations
+template class CpuElementwiseComparisonStatic<ComparisonOperation::Equal>;
+template class CpuElementwiseComparisonStatic<ComparisonOperation::NotEqual>;
+template class CpuElementwiseComparisonStatic<ComparisonOperation::Greater>;
+template class CpuElementwiseComparisonStatic<ComparisonOperation::GreaterEqual>;
+template class CpuElementwiseComparisonStatic<ComparisonOperation::Less>;
+template class CpuElementwiseComparisonStatic<ComparisonOperation::LessEqual>;
+} // namespace cpu
+} // namespace arm_compute
\ No newline at end of file