Change TileOperand to a view of a tile object

* TileOperand instead of being the tile object now is only a view
  of a tile object.
  - declare_tile now returns a TileOperand object, not a reference
    to a TileOperand object.
  - This is to prepare for the posibility that the users need
    to perform operations on part of a tile (e.g. a scalar value,
    a vector, a sub-tile).

Partially resolves: COMPMID-6391
Signed-off-by: Viet-Hoa Do <viet-hoa.do@arm.com>
Change-Id: I35c08b22a384a756d99dcd04cbe66fc57bd548d2
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/9958
Reviewed-by: Gunes Bayir <gunes.bayir@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Benchmark: Arm Jenkins <bsgcomp@arm.com>

1 files changed, 6 insertions, 5 deletions

diff --git a/compute_kernel_writer/src/cl/CLKernelWriter.h b/compute_kernel_writer/src/cl/CLKernelWriter.h
index 5bf7293ae2..c69a0bc07e 100644
--- a/compute_kernel_writer/src/cl/CLKernelWriter.h
+++ b/compute_kernel_writer/src/cl/CLKernelWriter.h
@@ -26,7 +26,10 @@
 #define CKW_SRC_CL_CLKERNELWRITER_H
 
 #include "ckw/KernelWriter.h"
+#include "src/cl/CLTile.h"
 
+#include <memory>
+#include <set>
 #include <utility>
 
 namespace ckw
@@ -62,8 +65,7 @@ public:
      *
      * Similar to @ref KernelWriter::declare_tile()
     */
-    TileOperand &declare_tile(const ::std::string &name, const TileInfo &tile_info) override;
-
+    TileOperand declare_tile(const std::string &name, const TileInfo &tile_info) override;
 
 protected:
     /** Append the specified code to the kernel body source code. */
@@ -84,9 +86,6 @@ protected:
     /** Get the current kernel body source code. */
     const std::string &body_source_code() const;
 
-    /** Add a tile operand to the kernel and return it */
-    TileOperand &add_operand(const std::string &code, const TileInfo &tile_info) override;
-
 private:
     /** This string contains the kernel body source code, not the full CL source code.
      * The full source code will only be generated when the user calls @ref KernelWriter::emit_kernel.
@@ -95,6 +94,8 @@ private:
      * Do not attempt to concatenate and alter this string directly.
      */
     std::string _body_source_code{};
+
+    std::set<std::unique_ptr<CLTile>> _tiles{};
 };
 
 } // namespace ckw