COMPMID-3384: Async support to NEStridedSliceLayerKernel kernels/functions

Signed-off-by: Michalis Spyrou <michalis.spyrou@arm.com>
Change-Id: I631c566fdf38ff0388b38e71549a1291d351f8b6
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/3426
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>

1 files changed, 65 insertions, 3 deletions

diff --git a/arm_compute/runtime/NEON/functions/NESlice.h b/arm_compute/runtime/NEON/functions/NESlice.h
index 834ec27a33..2f59fc8bfe 100644
--- a/arm_compute/runtime/NEON/functions/NESlice.h
+++ b/arm_compute/runtime/NEON/functions/NESlice.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018-2019 ARM Limited.
+ * Copyright (c) 2018-2020 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -24,17 +24,72 @@
 #ifndef ARM_COMPUTE_NE_SLICE_H
 #define ARM_COMPUTE_NE_SLICE_H
 
-#include "arm_compute/runtime/NEON/INESimpleFunctionNoBorder.h"
+#include "arm_compute/runtime/IFunction.h"
+#include "arm_compute/runtime/NEON/INEOperator.h"
 
 namespace arm_compute
 {
 // Forward Declarations
 class ITensor;
 
+namespace experimental
+{
+/** Basic function to perform tensor slicing */
+class NESlice : public INEOperator
+{
+public:
+    /** Configure kernel
+     *
+     * @note Supported tensor rank: up to 4
+     * @note Start indices must be non-negative. 0 <= starts[i]
+     * @note End coordinates can be negative, which represents the number of elements before the end of that dimension.
+     * @note End indices are not inclusive unless negative.
+     *
+     * @param[in]  input  Source tensor info. Data type supported: All
+     * @param[out] output Destination tensor info. Data type supported: Same as @p input
+     * @param[in]  starts The starts of the dimensions of the input tensor to be sliced. The length must be of rank(input).
+     * @param[in]  ends   The ends of the dimensions of the input tensor to be sliced. The length must be of rank(input).
+     */
+    void configure(const ITensorInfo *input, ITensorInfo *output, const Coordinates &starts, const Coordinates &ends);
+
+    /** Static function to check if given info will lead to a valid configuration of @ref NESlice
+     *
+     * @note Supported tensor rank: up to 4
+     * @note Start indices must be non-negative. 0 <= starts[i]
+     * @note End coordinates can be negative, which represents the number of elements before the end of that dimension.
+     * @note End indices are not inclusive unless negative.
+     *
+     * @param[in] input  Source tensor info. Data type supported: All
+     * @param[in] output Destination tensor info. Data type supported: Same as @p input
+     * @param[in] starts The starts of the dimensions of the input tensor to be sliced. The length must be of rank(input).
+     * @param[in] ends   The ends of the dimensions of the input tensor to be sliced. The length must be of rank(input).
+     *
+     * @return A status
+     */
+    static Status validate(const ITensorInfo *input, const ITensorInfo *output, const Coordinates &starts, const Coordinates &ends);
+
+    // Inherited methods overridden:
+    MemoryRequirements workspace() const override;
+};
+} // namespace experimental
+
 /** Basic function to perform tensor slicing */
-class NESlice : public INESimpleFunctionNoBorder
+class NESlice : public IFunction
 {
 public:
+    /** Default Constructor */
+    NESlice();
+    /** Default Destructor */
+    ~NESlice();
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    NESlice(const NESlice &) = delete;
+    /** Default move constructor */
+    NESlice(NESlice &&);
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    NESlice &operator=(const NESlice &) = delete;
+    /** Default move assignment operator */
+    NESlice &operator=(NESlice &&);
+
     /** Configure kernel
      *
      * @note Supported tensor rank: up to 4
@@ -64,6 +119,13 @@ public:
      * @return A status
      */
     static Status validate(const ITensorInfo *input, const ITensorInfo *output, const Coordinates &starts, const Coordinates &ends);
+
+    // Inherited methods overridden:
+    void run() override;
+
+private:
+    struct Impl;
+    std::unique_ptr<Impl> _impl;
 };
 } // namespace arm_compute
 #endif /* ARM_COMPUTE_NE_SLICE_H */