arm_compute v18.11
diff --git a/src/runtime/CL/functions/CLSplit.cpp b/src/runtime/CL/functions/CLSplit.cpp
new file mode 100644
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+++ b/src/runtime/CL/functions/CLSplit.cpp
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+/*
+ * Copyright (c) 2018 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 "arm_compute/runtime/CL/functions/CLSplit.h"
+
+#include "arm_compute/core/CL/ICLTensor.h"
+#include "arm_compute/core/Error.h"
+#include "arm_compute/core/Helpers.h"
+#include "arm_compute/core/TensorInfo.h"
+#include "arm_compute/core/Types.h"
+#include "arm_compute/core/utils/misc/ShapeCalculator.h"
+#include "arm_compute/runtime/CL/CLScheduler.h"
+#include "support/ToolchainSupport.h"
+
+namespace arm_compute
+{
+CLSplit::CLSplit()
+ : _outputs_vector(), _slice_functions(), _num_outputs(0)
+{
+}
+
+void CLSplit::configure(const ICLTensor *input, const std::vector<ICLTensor *> &outputs, unsigned int axis)
+{
+ // Create Slice functions
+ _num_outputs = outputs.size();
+ _slice_functions = arm_compute::support::cpp14::make_unique<CLSlice[]>(_num_outputs);
+
+ // Get output shape
+ const TensorShape output_shape = arm_compute::misc::shape_calculator::compute_split_shape(input->info(), axis, _num_outputs);
+
+ // Extract output tensor info
+ std::vector<ITensorInfo *> outputs_info;
+ for(auto &output : outputs)
+ {
+ ARM_COMPUTE_ERROR_ON_NULLPTR(output);
+ outputs_info.emplace_back(output->info());
+ }
+
+ // Validate
+ ARM_COMPUTE_ERROR_THROW_ON(CLSplit::validate(input->info(), outputs_info, axis));
+
+ const size_t axis_split_step = output_shape[axis];
+ unsigned int axis_offset = 0;
+
+ // Start/End coordinates
+ Coordinates start_coords;
+ Coordinates end_coords;
+ for(unsigned int d = 0; d < output_shape.num_dimensions(); ++d)
+ {
+ end_coords.set(d, -1);
+ }
+
+ for(unsigned int i = 0; i < _num_outputs; i++)
+ {
+ // Update coordinate on axis
+ start_coords.set(axis, axis_offset);
+ end_coords.set(axis, axis_offset + axis_split_step);
+
+ // Configure slice function
+ _slice_functions[i].configure(input, outputs[i], start_coords, end_coords);
+
+ // Set valid region from shape
+ outputs[i]->info()->set_valid_region(ValidRegion(Coordinates(), output_shape));
+
+ // Update axis offset
+ axis_offset += axis_split_step;
+ }
+}
+
+Status CLSplit::validate(const ITensorInfo *input, const std::vector<ITensorInfo *> &outputs, unsigned int axis)
+{
+ ARM_COMPUTE_RETURN_ERROR_ON_NULLPTR(input);
+ ARM_COMPUTE_RETURN_ERROR_ON(axis >= input->num_dimensions());
+ ARM_COMPUTE_RETURN_ERROR_ON(outputs.size() < 2);
+
+ // Get output shape
+ const TensorShape output_shape = arm_compute::misc::shape_calculator::compute_split_shape(input, axis, outputs.size());
+ ARM_COMPUTE_RETURN_ERROR_ON(output_shape.total_size() == 0);
+
+ const size_t axis_split_step = output_shape[axis];
+ unsigned int axis_offset = 0;
+
+ // Start/End coordinates
+ Coordinates start_coords;
+ Coordinates end_coords;
+ for(unsigned int d = 0; d < output_shape.num_dimensions(); ++d)
+ {
+ end_coords.set(d, -1);
+ }
+
+ // Validate output tensors
+ for(const auto &output : outputs)
+ {
+ ARM_COMPUTE_RETURN_ERROR_ON_NULLPTR(output);
+
+ // Output auto inizialitation if not yet initialized
+ TensorInfo tmp_output_info = *output->clone();
+ auto_init_if_empty(tmp_output_info, input->clone()->set_is_resizable(true).set_tensor_shape(output_shape));
+
+ // Update coordinate on axis
+ start_coords.set(axis, axis_offset);
+ end_coords.set(axis, axis_offset + axis_split_step);
+
+ ARM_COMPUTE_RETURN_ON_ERROR(CLSlice::validate(input, output, start_coords, end_coords));
+ axis_offset += axis_split_step;
+ }
+
+ return Status{};
+}
+
+void CLSplit::run()
+{
+ cl::CommandQueue q = CLScheduler::get().queue();
+
+ for(unsigned i = 0; i < _num_outputs; ++i)
+ {
+ _slice_functions[i].run();
+ }
+}
+} // namespace arm_compute