Beispiel #1
0
void BackendConsumer::OptimizationRemarkHandler(
    const llvm::DiagnosticInfoOptimizationBase &D) {
  // Without hotness information, don't show noisy remarks.
  if (D.isVerbose() && !D.getHotness())
    return;

  if (D.isPassed()) {
    // Optimization remarks are active only if the -Rpass flag has a regular
    // expression that matches the name of the pass name in \p D.
    if (CodeGenOpts.OptimizationRemarkPattern &&
        CodeGenOpts.OptimizationRemarkPattern->match(D.getPassName()))
      EmitOptimizationMessage(D, diag::remark_fe_backend_optimization_remark);
  } else if (D.isMissed()) {
    // Missed optimization remarks are active only if the -Rpass-missed
    // flag has a regular expression that matches the name of the pass
    // name in \p D.
    if (CodeGenOpts.OptimizationRemarkMissedPattern &&
        CodeGenOpts.OptimizationRemarkMissedPattern->match(D.getPassName()))
      EmitOptimizationMessage(
          D, diag::remark_fe_backend_optimization_remark_missed);
  } else {
    assert(D.isAnalysis() && "Unknown remark type");

    bool ShouldAlwaysPrint = false;
    if (auto *ORA = dyn_cast<llvm::OptimizationRemarkAnalysis>(&D))
      ShouldAlwaysPrint = ORA->shouldAlwaysPrint();

    if (ShouldAlwaysPrint ||
        (CodeGenOpts.OptimizationRemarkAnalysisPattern &&
         CodeGenOpts.OptimizationRemarkAnalysisPattern->match(D.getPassName())))
      EmitOptimizationMessage(
          D, diag::remark_fe_backend_optimization_remark_analysis);
  }
}
Beispiel #2
0
void BackendConsumer::EmitOptimizationMessage(
    const llvm::DiagnosticInfoOptimizationBase &D, unsigned DiagID) {
  // We only support warnings and remarks.
  assert(D.getSeverity() == llvm::DS_Remark ||
         D.getSeverity() == llvm::DS_Warning);

  StringRef Filename;
  unsigned Line, Column;
  bool BadDebugInfo = false;
  FullSourceLoc Loc = getBestLocationFromDebugLoc(D, BadDebugInfo, Filename,
      Line, Column);

  std::string Msg;
  raw_string_ostream MsgStream(Msg);
  MsgStream << D.getMsg();

  if (D.getHotness())
    MsgStream << " (hotness: " << *D.getHotness() << ")";

  Diags.Report(Loc, DiagID)
      << AddFlagValue(D.getPassName())
      << MsgStream.str();

  if (BadDebugInfo)
    // If we were not able to translate the file:line:col information
    // back to a SourceLocation, at least emit a note stating that
    // we could not translate this location. This can happen in the
    // case of #line directives.
    Diags.Report(Loc, diag::note_fe_backend_invalid_loc)
        << Filename << Line << Column;
}
Beispiel #3
0
void BackendConsumer::EmitOptimizationMessage(
    const llvm::DiagnosticInfoOptimizationBase &D, unsigned DiagID) {
  // We only support warnings and remarks.
  assert(D.getSeverity() == llvm::DS_Remark ||
         D.getSeverity() == llvm::DS_Warning);

  SourceManager &SourceMgr = Context->getSourceManager();
  FileManager &FileMgr = SourceMgr.getFileManager();
  StringRef Filename;
  unsigned Line, Column;
  SourceLocation DILoc;

  if (D.isLocationAvailable()) {
    D.getLocation(&Filename, &Line, &Column);
    const FileEntry *FE = FileMgr.getFile(Filename);
    if (FE && Line > 0) {
      // If -gcolumn-info was not used, Column will be 0. This upsets the
      // source manager, so pass 1 if Column is not set.
      DILoc = SourceMgr.translateFileLineCol(FE, Line, Column ? Column : 1);
    }
  }

  // If a location isn't available, try to approximate it using the associated
  // function definition. We use the definition's right brace to differentiate
  // from diagnostics that genuinely relate to the function itself.
  FullSourceLoc Loc(DILoc, SourceMgr);
  if (Loc.isInvalid())
    if (const Decl *FD = Gen->GetDeclForMangledName(D.getFunction().getName()))
      Loc = FD->getASTContext().getFullLoc(FD->getBodyRBrace());

  Diags.Report(Loc, DiagID)
      << AddFlagValue(D.getPassName() ? D.getPassName() : "")
      << D.getMsg().str();

  if (DILoc.isInvalid() && D.isLocationAvailable())
    // If we were not able to translate the file:line:col information
    // back to a SourceLocation, at least emit a note stating that
    // we could not translate this location. This can happen in the
    // case of #line directives.
    Diags.Report(Loc, diag::note_fe_backend_optimization_remark_invalid_loc)
        << Filename << Line << Column;
}