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);
}
}
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;
}
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;
}