Add helpers methods to CLHelpers in CKW

This patch adds some helper methods to perform
     - scalar and vector data type to string conversion
     - decompose a vector length to a superposition of OpenCL vector lengths

Partially Resolves: COMPMID-5791

Signed-off-by: Gunes Bayir <gunes.bayir@arm.com>
Change-Id: I14495773a6bb57bd3c3565a0d6e44b891159a948
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/9995
Reviewed-by: Gian Marco Iodice <gianmarco.iodice@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Benchmark: Arm Jenkins <bsgcomp@arm.com>

1 files changed, 21 insertions, 2 deletions

diff --git a/compute_kernel_writer/src/cl/CLHelpers.h b/compute_kernel_writer/src/cl/CLHelpers.h
index d0ca488617..669424088e 100644
--- a/compute_kernel_writer/src/cl/CLHelpers.h
+++ b/compute_kernel_writer/src/cl/CLHelpers.h
@@ -26,6 +26,7 @@
 
 #include <cstdint>
 #include <string>
+#include <vector>
 
 /** OpenCL specific helper functions */
 namespace ckw
@@ -57,7 +58,7 @@ std::string cl_get_variable_datatype_as_string(DataType dt, int32_t len);
  *
  * @return the OpenCL vector size
 */
-int32_t width_to_cl_vector_size(int32_t width);
+int32_t cl_round_up_to_nearest_valid_vector_width(int32_t width);
 
 /** Helper function to return the OpenCL storage type as a string from a @ref TensorStorage
  *
@@ -66,6 +67,24 @@ int32_t width_to_cl_vector_size(int32_t width);
  * @return the OpenCL storage type as a string
  */
 std::string cl_get_variable_storagetype_as_string(TensorStorageType storage);
+
+/** Helper function to decompose a vector width into a summation of valid OpenCL vector widths.
+ *
+ * @param[in] vector_width Vector width to be decomposed
+ *
+ * @return a vector of OpenCL vector widths
+ */
+std::vector<int32_t> cl_decompose_vector_width(int32_t vector_width);
+
+/** Helper function to get OpenCL data type from the data type enum and width
+ *  It'll round up the given vector width to the nearest valid OpenCL vector width.
+ *
+ *  @param[in] dt    data type enum
+ *  @param[in] width vector width
+ *
+ * @return a string representation of the data type
+ */
+std::string cl_data_type_rounded_up_to_valid_vector_width(DataType dt, int32_t width);
 } // namespace ckw
 
-#endif /* COMPUTE_KERNEL_WRITER_SRC_CL_CLHELPERS_H */
+#endif /* CKW_SRC_CL_CLHELPERS_H */