1 files changed, 205 insertions, 0 deletions
diff --git a/runtimes/libs/ARMComputeEx/src/core/NEON/kernels/NEElementwiseUnaryKernelEx.cpp b/runtimes/libs/ARMComputeEx/src/core/NEON/kernels/NEElementwiseUnaryKernelEx.cpp
new file mode 100644
index 000000000..cebd614df
--- /dev/null
+++ b/runtimes/libs/ARMComputeEx/src/core/NEON/kernels/NEElementwiseUnaryKernelEx.cpp
@@ -0,0 +1,205 @@
+/*
+ * Copyright (c) 2019 Samsung Electronics Co., Ltd. All Rights Reserved
+ * Copyright (c) 2018-2019 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/core/NEON/kernels/NEElementwiseUnaryKernelEx.h"
+
+#include "arm_compute/core/CPP/Validate.h"
+#include "arm_compute/core/Error.h"
+#include "arm_compute/core/Helpers.h"
+#include "arm_compute/core/IAccessWindow.h"
+#include "arm_compute/core/ITensor.h"
+#include "arm_compute/core/NEON/NEAsymm.h"
+#include "arm_compute/core/NEON/NEFixedPoint.h"
+#include "arm_compute/core/NEON/wrapper/wrapper.h"
+#include "arm_compute/core/TensorInfo.h"
+#include "arm_compute/core/Validate.h"
+
+#include <algorithm>
+#include <arm_neon.h>
+#include <cstdint>
+#include <map>
+#include <string>
+
+namespace arm_compute
+{
+class Coordinates;
+
+namespace
+{
+template <ElementWiseUnaryEx op, typename ScalarType>
+inline ScalarType elementwise_op_scalar(const ScalarType &a)
+{
+  switch (op)
+  {
+    case ElementWiseUnaryEx::NEG:
+      return -a;
+    default:
+      ARM_COMPUTE_ERROR("NOT_SUPPORTED!");
+  }
+}
+
+template <ElementWiseUnaryEx op, typename VectorType>
+inline VectorType elementwise_op(const VectorType &a)
+{
+  switch (op)
+  {
+    case ElementWiseUnaryEx::NEG:
+      return wrapper::vneg(a);
+    default:
+      ARM_COMPUTE_ERROR("NOT_SUPPORTED!");
+  }
+}
+
+template <ElementWiseUnaryEx op, typename ScalarType>
+void elementwise_op(const ITensor *in, ITensor *out, const Window &window)
+{
+  const int window_step_x = 16 / sizeof(ScalarType);
+  const auto window_start_x = static_cast<int>(window.x().start());
+  const auto window_end_x = static_cast<int>(window.x().end());
+
+  Window win = window;
+  win.set(Window::DimX, Window::Dimension(0, 1, 1));
+
+  Iterator input(in, win);
+  Iterator output(out, win);
+
+  execute_window_loop(win,
+                      [&](const Coordinates &) {
+                        auto output_ptr = reinterpret_cast<ScalarType *>(output.ptr());
+                        const auto input_ptr = reinterpret_cast<const ScalarType *>(input.ptr());
+
+                        int x = window_start_x;
+                        for (; x <= window_end_x - window_step_x; x += window_step_x)
+                        {
+                          wrapper::vstore(output_ptr + x,
+                                          elementwise_op<op>(wrapper::vloadq(input_ptr + x)));
+                        }
+                        for (; x < window_end_x; ++x)
+                        {
+                          *(output_ptr + x) = elementwise_op_scalar<op>(*(input_ptr + x));
+                        }
+                      },
+                      input, output);
+}
+
+template <ElementWiseUnaryEx op>
+std::function<void(const ITensor *input, ITensor *output, const Window &window)>
+configure_func(const ITensor *input, ITensor *output)
+{
+  std::string function_to_call("op_");
+  function_to_call += string_from_data_type(input->info()->data_type()) + "_";
+  function_to_call += string_from_data_type(output->info()->data_type());
+
+  static std::map<std::string, NEElementwiseUnaryKernelEx::ElementwiseUnaryFunction *>
+      map_function = {
+          {"op_F32_F32", &elementwise_op<op, float>}, {"op_S32_S32", &elementwise_op<op, int32_t>},
+      };
+#ifdef __ARM_FEATURE_FP16_VECTOR_ARITHMETIC
+  map_function["op_F16_F16"] = &elementwise_op<op, float16_t>;
+#endif /* __ARM_FEATURE_FP16_VECTOR_ARITHMETIC */
+
+  auto it = map_function.find(function_to_call);
+
+  if (it != map_function.end())
+  {
+    auto func = it->second;
+    return [func](const ITensor *input, ITensor *output, const Window &window) {
+      func(input, output, window);
+    };
+  }
+  return nullptr;
+}
+} // namespace
+
+NEElementwiseUnaryKernelEx::NEElementwiseUnaryKernelEx()
+    : _function(nullptr), _input(nullptr), _output(nullptr)
+{
+}
+
+void NEElementwiseUnaryKernelEx::configure(ElementWiseUnaryEx op, const ITensor *input,
+                                           ITensor *output)
+{
+  ARM_COMPUTE_ERROR_THROW_ON(validate_arguments(*input->info(), *output->info()));
+  ARM_COMPUTE_ERROR_ON_NULLPTR(input, output);
+
+  // Configure kernel window
+  const std::pair<TensorShape, ValidRegion> broadcast_pair =
+      ITensorInfo::broadcast_shape_and_valid_region(*input->info());
+  const TensorShape &out_shape = broadcast_pair.first;
+  const ValidRegion &valid_region = broadcast_pair.second;
+
+  // Auto initialize output if not initialized
+  auto_init_if_empty(*output->info(), out_shape, 1, input->info()->data_type());
+
+  Window win = calculate_max_window(valid_region);
+
+  _input = input;
+  _output = output;
+
+  INEKernel::configure(win);
+
+  switch (op)
+  {
+    case ElementWiseUnaryEx::NEG:
+      _function = configure_func<ElementWiseUnaryEx::NEG>(input, output);
+      break;
+    default:
+      ARM_COMPUTE_ERROR("NOT_SUPPORTED!");
+  }
+}
+
+Status NEElementwiseUnaryKernelEx::validate_arguments(const ITensorInfo &input,
+                                                      const ITensorInfo &output)
+{
+  ARM_COMPUTE_RETURN_ERROR_ON_CPU_F16_UNSUPPORTED(&input);
+  ARM_COMPUTE_RETURN_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(&input, 1, DataType::F16, DataType::F32,
+                                                       DataType::S32);
+
+  // Validate in case of configured output
+  if (output.total_size() > 0)
+  {
+    ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_DATA_TYPES(&input, &output);
+  }
+
+  return Status{};
+}
+
+Status NEElementwiseUnaryKernelEx::validate(ElementWiseUnaryEx op, const ITensorInfo *input,
+                                            const ITensorInfo *output)
+{
+  ARM_COMPUTE_UNUSED(op);
+  ARM_COMPUTE_RETURN_ERROR_ON_NULLPTR(input, output);
+  ARM_COMPUTE_RETURN_ON_ERROR(validate_arguments(*input, *output));
+  return Status{};
+}
+
+void NEElementwiseUnaryKernelEx::run(const Window &window, const ThreadInfo &info)
+{
+  ARM_COMPUTE_UNUSED(info);
+  ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this);
+  ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(INEKernel::window(), window);
+  ARM_COMPUTE_ERROR_ON(_function == nullptr);
+  _function(_input, _output, window);
+}
+} // namespace arm_compute