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Rewrite llvm-lto's codegen() using ThinCodeGenerator::run(). NFC-ish.

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Differential Revision: https://reviews.llvm.org/D33360

llvm-svn: 303437
This commit is contained in:
Adrian Prantl 2017-05-19 17:54:58 +00:00
parent d0b8ae859d
commit af6e8a6aed
1 changed files with 15 additions and 9 deletions
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24
tools/llvm-lto/llvm-lto.cpp
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@ -669,24 +669,30 @@ private:
if (!ThinLTOIndex.empty())
errs() << "Warning: -thinlto-index ignored for codegen stage";
std::vector<std::unique_ptr<MemoryBuffer>> InputBuffers;
for (auto &Filename : InputFilenames) {
LLVMContext Ctx;
auto TheModule = loadModule(Filename, Ctx);
auto Buffer = ThinGenerator.codegen(*TheModule);
auto InputOrErr = MemoryBuffer::getFile(Filename);
error(InputOrErr, "error " + CurrentActivity);
InputBuffers.push_back(std::move(*InputOrErr));
ThinGenerator.addModule(Filename, InputBuffers.back()->getBuffer());
}
ThinGenerator.setCodeGenOnly(true);
ThinGenerator.run();
for (auto BinName :
zip(ThinGenerator.getProducedBinaries(), InputFilenames)) {
std::string OutputName = OutputFilename;
if (OutputName.empty()) {
OutputName = Filename + ".thinlto.o";
}
if (OutputName == "-") {
outs() << Buffer->getBuffer();
if (OutputName.empty())
OutputName = std::get<1>(BinName) + ".thinlto.o";
else if (OutputName == "-") {
outs() << std::get<0>(BinName)->getBuffer();
return;
}
std::error_code EC;
raw_fd_ostream OS(OutputName, EC, sys::fs::OpenFlags::F_None);
error(EC, "error opening the file '" + OutputName + "'");
OS << Buffer->getBuffer();
OS << std::get<0>(BinName)->getBuffer();
}
}