2 // Copyright © 2019 Arm Ltd. All rights reserved.
3 // SPDX-License-Identifier: MIT
6 #include "ArgMinMax.hpp"
8 #include <TensorUtils.hpp>
10 #include <boost/numeric/conversion/cast.hpp>
15 void ArgMinMax(Decoder<float>& in, int32_t* out, const TensorInfo& inputTensorInfo,
16 const TensorInfo& outputTensorInfo, ArgMinMaxFunction function, int axis)
18 unsigned int uAxis = armnnUtils::GetUnsignedAxis(inputTensorInfo.GetNumDimensions(), axis);
20 const unsigned int outerElements = armnnUtils::GetNumElementsBetween(inputTensorInfo.GetShape(), 0, uAxis);
21 const unsigned int axisSize = inputTensorInfo.GetShape()[uAxis];
22 const unsigned int innerElements = armnnUtils::GetNumElementsBetween(inputTensorInfo.GetShape(),
24 inputTensorInfo.GetNumDimensions());
26 for (unsigned int outer = 0; outer < outerElements; ++outer) {
27 for (unsigned int inner = 0; inner < innerElements; ++inner) {
28 in[outer * axisSize * innerElements + inner];
29 auto tmpValue = in.Get();
30 unsigned int tmpIndex = 0;
31 for (unsigned int i = 1; i < axisSize; ++i) {
32 in[(outer * axisSize * innerElements) + (i * innerElements) + inner];
33 const auto& value = in.Get();
34 if ((function == armnn::ArgMinMaxFunction::Min && value < tmpValue) ||
35 (function == armnn::ArgMinMaxFunction::Max && value > tmpValue)) {
40 out[outer * innerElements + inner] = boost::numeric_cast<int32_t>(tmpIndex);