Exemple #1
0
void clang::EmitBackendOutput(DiagnosticsEngine &Diags,
                              const CodeGenOptions &CGOpts,
                              const clang::TargetOptions &TOpts,
                              const LangOptions &LOpts, const llvm::DataLayout &TDesc,
                              Module *M, BackendAction Action,
                              std::unique_ptr<raw_pwrite_stream> OS) {
  if (!CGOpts.ThinLTOIndexFile.empty()) {
    runThinLTOBackend(CGOpts, M, std::move(OS));
    return;
  }

  EmitAssemblyHelper AsmHelper(Diags, CGOpts, TOpts, LOpts, M);

  AsmHelper.EmitAssembly(Action, std::move(OS));

  // Verify clang's TargetInfo DataLayout against the LLVM TargetMachine's
  // DataLayout.
  if (AsmHelper.TM) {
    std::string DLDesc = M->getDataLayout().getStringRepresentation();
    if (DLDesc != TDesc.getStringRepresentation()) {
      unsigned DiagID = Diags.getCustomDiagID(
          DiagnosticsEngine::Error, "backend data layout '%0' does not match "
                                    "expected target description '%1'");
      Diags.Report(DiagID) << DLDesc << TDesc.getStringRepresentation();
    }
  }
}
Exemple #2
0
void clang::EmitBackendOutput(DiagnosticsEngine &Diags,
                              const HeaderSearchOptions &HeaderOpts,
                              const CodeGenOptions &CGOpts,
                              const clang::TargetOptions &TOpts,
                              const LangOptions &LOpts,
                              const llvm::DataLayout &TDesc, Module *M,
                              BackendAction Action,
                              std::unique_ptr<raw_pwrite_stream> OS) {
  if (!CGOpts.ThinLTOIndexFile.empty()) {
    // If we are performing a ThinLTO importing compile, load the function index
    // into memory and pass it into runThinLTOBackend, which will run the
    // function importer and invoke LTO passes.
    Expected<std::unique_ptr<ModuleSummaryIndex>> IndexOrErr =
        llvm::getModuleSummaryIndexForFile(CGOpts.ThinLTOIndexFile,
                                           /*IgnoreEmptyThinLTOIndexFile*/true);
    if (!IndexOrErr) {
      logAllUnhandledErrors(IndexOrErr.takeError(), errs(),
                            "Error loading index file '" +
                            CGOpts.ThinLTOIndexFile + "': ");
      return;
    }
    std::unique_ptr<ModuleSummaryIndex> CombinedIndex = std::move(*IndexOrErr);
    // A null CombinedIndex means we should skip ThinLTO compilation
    // (LLVM will optionally ignore empty index files, returning null instead
    // of an error).
    bool DoThinLTOBackend = CombinedIndex != nullptr;
    if (DoThinLTOBackend) {
      runThinLTOBackend(CombinedIndex.get(), M, HeaderOpts, CGOpts, TOpts,
                        LOpts, std::move(OS), CGOpts.SampleProfileFile, Action);
      return;
    }
  }

  EmitAssemblyHelper AsmHelper(Diags, HeaderOpts, CGOpts, TOpts, LOpts, M);

  if (CGOpts.ExperimentalNewPassManager)
    AsmHelper.EmitAssemblyWithNewPassManager(Action, std::move(OS));
  else
    AsmHelper.EmitAssembly(Action, std::move(OS));

  // Verify clang's TargetInfo DataLayout against the LLVM TargetMachine's
  // DataLayout.
  if (AsmHelper.TM) {
    std::string DLDesc = M->getDataLayout().getStringRepresentation();
    if (DLDesc != TDesc.getStringRepresentation()) {
      unsigned DiagID = Diags.getCustomDiagID(
          DiagnosticsEngine::Error, "backend data layout '%0' does not match "
                                    "expected target description '%1'");
      Diags.Report(DiagID) << DLDesc << TDesc.getStringRepresentation();
    }
  }
}