gyshi commented on a change in pull request #16257: [Numpy] add numpy op bitwise_xor, hsplit, moveaxis, rot90 URL: https://github.com/apache/incubator-mxnet/pull/16257#discussion_r329309474
########## File path: src/operator/numpy/np_matrix_op.cc ########## @@ -612,5 +614,215 @@ NNVM_REGISTER_OP(_backward_npi_flip) }) .set_attr<FCompute>("FCompute<cpu>", NumpyFlipForward<cpu>); +bool NumpyMoveaxisShape(const nnvm::NodeAttrs& attrs, + mxnet::ShapeVector *in_attrs, + mxnet::ShapeVector *out_attrs) { + const NumpyMoveaxisParam& param = nnvm::get<NumpyMoveaxisParam>(attrs.parsed); + CHECK_EQ(in_attrs->size(), 1U); + CHECK_EQ(out_attrs->size(), 1U); + mxnet::TShape& shp = (*in_attrs)[0]; + CHECK_LE(shp.ndim(), 6) << "Transpose support at most 6 dimensions"; + CHECK_EQ(param.source.ndim(), param.destination.ndim()) + << "source and destination not equal."; + mxnet::TShape ret(shp.ndim(), -1); + mxnet::TShape axes(shp.ndim(), -1); + std::vector<bool> state_axes(shp.ndim(), false); + mxnet::TShape real_src(param.source.ndim(), -1); + mxnet::TShape real_des(param.destination.ndim(), -1); + for (int i = 0; i < param.source.ndim(); ++i) { + if (param.source[i] >= 0) { + CHECK_LT(static_cast<size_t>(param.source[i]), shp.ndim()); + real_src[i] = param.source[i]; + } else { + CHECK_LT(param.source[i] + shp.ndim(), shp.ndim()); + real_src[i] = param.source[i] + shp.ndim(); + } + if (param.destination[i] >= 0) { + CHECK_LT(static_cast<size_t>(param.destination[i]), shp.ndim()); + real_des[i] = param.destination[i]; + } else { + CHECK_LT(param.destination[i] + shp.ndim(), shp.ndim()); + real_des[i] = param.destination[i] + shp.ndim(); + } + } + if (shp.ndim() > 1) { + for (int i = 0; i < param.source.ndim() - 1; ++i) { + for (int j = i + 1; j < param.source.ndim(); ++j) { + CHECK_NE(real_src[i], real_src[j]) + << "repeated axis in `source` argument"; + CHECK_NE(real_des[i], real_des[j]) + << "repeated axis in `destination` argument"; + } + } + } + for (int i = 0; i < param.source.ndim(); ++i) { + axes[real_des[i]] = real_src[i]; + state_axes[real_src[i]] = true; + } + for (int i = 0; i < axes.ndim(); ++i) { + if (axes[i] < 0) { + for (int j = 0; j < axes.ndim(); ++j) { + if (state_axes[j] == false) { + axes[i] = j; + state_axes[j] = true; + break; + } + } + } + } Review comment: i think it is not redundant logic, because i want to record historical information. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services