Make Sub kernel and operator stateless

- Rename NEArithmeticSubstractionKernel to CpuSubKernel and move files appropriately

- Add CpuSub under src/runtime/cpu/operators

Partially resolves: COMPMID-4007

Signed-off-by: Sheri Zhang <sheri.zhang@arm.com>
Change-Id: I4754ca9101d82dccacca744be6d069764a9c6b55
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/4868
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Pablo Marquez Tello <pablo.tello@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>

1 files changed, 46 insertions, 0 deletions

diff --git a/src/runtime/cpu/operators/CpuSub.cpp b/src/runtime/cpu/operators/CpuSub.cpp
new file mode 100644
index 0000000000..9baaaa9d67
--- /dev/null
+++ b/src/runtime/cpu/operators/CpuSub.cpp
@@ -0,0 +1,46 @@
+/*
+ * 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/CpuSub.h"
+
+#include "src/core/cpu/kernels/CpuSubKernel.h"
+
+namespace arm_compute
+{
+namespace cpu
+{
+void CpuSub::configure(const ITensorInfo *src0, const ITensorInfo *src1, ITensorInfo *dst, ConvertPolicy policy, const ActivationLayerInfo &act_info)
+{
+    ARM_COMPUTE_UNUSED(act_info);
+    auto k = std::make_unique<kernels::CpuSubKernel>();
+    k->configure(src0, src1, dst, policy);
+    _kernel = std::move(k);
+}
+
+Status CpuSub::validate(const ITensorInfo *src0, const ITensorInfo *src1, const ITensorInfo *dst, ConvertPolicy policy, const ActivationLayerInfo &act_info)
+{
+    ARM_COMPUTE_RETURN_ERROR_ON(act_info.enabled());
+    return kernels::CpuSubKernel::validate(src0, src1, dst, policy);
+}
+} // namespace cpu
+} // namespace arm_compute
\ No newline at end of file