mirror of
https://github.com/ROCm/composable_kernel.git
synced 2026-05-15 02:27:57 +00:00
c459c26388
* Build codegen as standalone
* Add exception for device tests
* Use local filesystem header
* add a codegen test CI stage and daily build
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Co-authored-by: illsilin <Illia.Silin@amd.com>
Co-authored-by: Illia Silin <98187287+illsilin@users.noreply.github.com>
[ROCm/composable_kernel commit: 10158b0ffd]
104 lines
3.1 KiB
C++
104 lines
3.1 KiB
C++
#include <rtc/hip.hpp>
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#include <rtc/compile_kernel.hpp>
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#include <rtc/tmp_dir.hpp>
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#include <stdexcept>
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#include <iostream>
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#include <fstream>
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#include <cassert>
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namespace rtc {
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template <class T>
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T generic_read_file(const std::string& filename, size_t offset = 0, size_t nbytes = 0)
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{
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std::ifstream is(filename, std::ios::binary | std::ios::ate);
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if(nbytes == 0)
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{
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// if there is a non-zero offset and nbytes is not set,
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// calculate size of remaining bytes to read
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nbytes = is.tellg();
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if(offset > nbytes)
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throw std::runtime_error("offset is larger than file size");
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nbytes -= offset;
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}
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if(nbytes < 1)
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throw std::runtime_error("Invalid size for: " + filename);
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is.seekg(offset, std::ios::beg);
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T buffer(nbytes, 0);
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if(not is.read(&buffer[0], nbytes))
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throw std::runtime_error("Error reading file: " + filename);
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return buffer;
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}
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std::vector<char> read_buffer(const std::string& filename, size_t offset = 0, size_t nbytes = 0)
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{
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return generic_read_file<std::vector<char>>(filename, offset, nbytes);
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}
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std::string read_string(const std::string& filename)
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{
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return generic_read_file<std::string>(filename);
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}
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void write_buffer(const std::string& filename, const char* buffer, std::size_t size)
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{
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std::ofstream os(filename);
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os.write(buffer, size);
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}
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void write_buffer(const std::string& filename, const std::vector<char>& buffer)
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{
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write_buffer(filename, buffer.data(), buffer.size());
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}
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void write_string(const std::string& filename, const std::string_view& buffer)
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{
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write_buffer(filename, buffer.data(), buffer.size());
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}
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std::string compiler() { return "/opt/rocm/llvm/bin/clang++ -x hip --cuda-device-only"; }
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// TODO: undo after extracting the codeobj
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// std::string compiler() { return "/opt/rocm/llvm/bin/clang++ -x hip"; }
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kernel compile_kernel(const std::vector<src_file>& srcs, compile_options options)
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{
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assert(not srcs.empty());
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tmp_dir td{"compile"};
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options.flags += " -I. -O3";
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options.flags += " -std=c++17";
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options.flags += " --offload-arch=" + get_device_name();
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std::string out;
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for(const auto& src : srcs)
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{
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fs::path full_path = td.path / src.path;
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fs::path parent_path = full_path.parent_path();
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fs::create_directories(parent_path);
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write_string(full_path.string(), src.content);
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if(src.path.extension().string() == ".cpp")
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{
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options.flags += " -c " + src.path.filename().string();
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if(out.empty())
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out = src.path.stem().string() + ".o";
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}
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}
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options.flags += " -o " + out;
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td.execute(compiler() + options.flags);
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auto out_path = td.path / out;
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if(not fs::exists(out_path))
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throw std::runtime_error("Output file missing: " + out);
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auto obj = read_buffer(out_path.string());
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std::ofstream ofh("obj.o", std::ios::binary);
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for(auto i : obj)
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ofh << i;
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ofh.close();
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// int s = std::system(("/usr/bin/cp " + out_path.string() + " codeobj.bin").c_str());
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// assert(s == 0);
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return kernel{obj.data(), options.kernel_name};
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}
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} // namespace rtc
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