Method getSummary

src/lib/Bitcode/Reader/BitcodeReader.cpp:5918–5930

Parse the specified bitcode buffer, returning the function info index.

// Parse the specified bitcode buffer, returning the function info index.
Expected<std::unique_ptr<ModuleSummaryIndex>> BitcodeModule::getSummary() {
  BitstreamCursor Stream(Buffer);
  Stream.JumpToBit(ModuleBit);

  auto Index = llvm::make_unique<ModuleSummaryIndex>(/*HaveGVs=*/false);
  ModuleSummaryIndexBitcodeReader R(std::move(Stream), Strtab, *Index,
                                    ModuleIdentifier, 0);

  if (Error Err = R.parseModule())
    return std::move(Err);

  return std::move(Index);
}

static Expected<bool> getEnableSplitLTOUnitFlag(BitstreamCursor &Stream,
                                                unsigned ID) {