areusch commented on a change in pull request #6917: URL: https://github.com/apache/tvm/pull/6917#discussion_r529663829
########## File path: src/target/source/codegen_params.cc ########## @@ -0,0 +1,218 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +/*! + * \file codegen_params.cc + */ + +#include "codegen_params.h" + +#include <dlpack/dlpack.h> + +#include <cmath> +#include <iomanip> +#include <memory> +#include <string> + +namespace tvm { +namespace codegen { + +namespace { +class DLManagedTensorDeleter { + public: + void operator()(DLManagedTensor* ptr) { ptr->deleter(ptr); } +}; +} // namespace + +static constexpr const int kMaxLineLength = 80; + +template <typename T, typename = std::enable_if<std::is_integral<T>::value>> +void PrintArray(void* data, size_t num_elements, int elements_per_row, std::string indent_str, + std::ostream& os) { + for (size_t i = 0; i < num_elements; i++) { + int64_t elem = static_cast<T*>(data)[i]; + if (std::is_signed<T>::value) { + uint64_t to_print; + if (elem < 0) { + os << "-"; + to_print = -elem; + } else { + os << "+"; + to_print = elem; + } + os << "0x" << std::setw(sizeof(T) * 8 / 4) << static_cast<std::uint64_t>(to_print); + } else { + os << "0x" << std::setw(sizeof(T) * 8 / 4) << static_cast<std::uint64_t>(elem); + } + if (i < num_elements - 1) { + os << ", "; + } + if (((i + 1) % elements_per_row) == 0) { + os << "\n" << indent_str; + } + } +} + +template <typename T, typename = std::enable_if<std::is_floating_point<T>::value>> +void PrintArray(void* data, size_t num_elements, int one_element_size_bytes, int elements_per_row, + std::string indent_str, std::ostream& os) { + std::stringstream ss; + if (std::is_signed<T>::value) { + ss.setf(std::ios::hex | std::ios::showbase | std::ios::fixed | std::ios::scientific, + std::ios::basefield | std::ios::showbase | std::ios::floatfield); + } else { + ss.setf(std::ios::hex | std::ios::fixed | std::ios::scientific, + std::ios::basefield | std::ios::showbase | std::ios::floatfield); + } + for (size_t i = 0; i < num_elements; i++) { + T elem = static_cast<T*>(data)[i]; + if (std::isinf(elem)) { + // C99 standard. + os << (elem < 0 ? "-" : " ") << std::setw(one_element_size_bytes - 1) << "INFINITY"; + } else if (std::isnan(elem)) { + // GNU extension, implemenatation-dependent. + os << std::setw(one_element_size_bytes) << "NAN"; + } else { + ss << elem; + os << std::setw(one_element_size_bytes) << ss.str(); + ss.str(""); + } + if (i < num_elements - 1) { + os << ", "; + } + if (((i + 1) % elements_per_row) == 0) { + os << "\n" << indent_str; + } + } +} + +void NDArrayDataToC(::tvm::runtime::NDArray arr, int indent_chars, std::ostream& os) { Review comment: we could. the main thing this drags in is whether we should be determining things like the byte order and alignment of the target machine, or leave that to the compiler (LLVM or in this case, external C). i've been so far arguing not to do any of this--I don't really see a tangible benefit and it adds considerable complexity at this level that's hard to test. also, it makes it quite easy to inspect the generated parameters, which will often differ from the parameters originally supplied to relay.build(). ---------------------------------------------------------------- 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
