/// Load the input files, create the combined index, and write it out.
void thinLink() {
// Perform "ThinLink": just produce the index
if (OutputFilename.empty())
report_fatal_error(
"OutputFilename is necessary to store the combined index.\n");
LLVMContext Ctx;
std::vector<std::unique_ptr<MemoryBuffer>> InputBuffers;
for (unsigned i = 0; i < InputFilenames.size(); ++i) {
auto &Filename = InputFilenames[i];
StringRef CurrentActivity = "loading file '" + Filename + "'";
auto InputOrErr = MemoryBuffer::getFile(Filename);
error(InputOrErr, "error " + CurrentActivity);
InputBuffers.push_back(std::move(*InputOrErr));
ThinGenerator.addModule(Filename, InputBuffers.back()->getBuffer());
}
auto CombinedIndex = ThinGenerator.linkCombinedIndex();
std::error_code EC;
raw_fd_ostream OS(OutputFilename, EC, sys::fs::OpenFlags::F_None);
error(EC, "error opening the file '" + OutputFilename + "'");
WriteFunctionSummaryToFile(*CombinedIndex, OS);
return;
}
