+namespace {
+
+/// \brief Regular expression corresponding to the value given in one of the
+/// -pass-remarks* command line flags. Passes whose name matches this regexp
+/// will emit a diagnostic when calling the associated diagnostic function
+/// (emitOptimizationRemark, emitOptimizationRemarkMissed or
+/// emitOptimizationRemarkAnalysis).
+struct PassRemarksOpt {
+ std::shared_ptr<Regex> Pattern;
+
+ void operator=(const std::string &Val) {
+ // Create a regexp object to match pass names for emitOptimizationRemark.
+ if (!Val.empty()) {
+ Pattern = std::make_shared<Regex>(Val);
+ std::string RegexError;
+ if (!Pattern->isValid(RegexError))
+ report_fatal_error("Invalid regular expression '" + Val +
+ "' in -pass-remarks: " + RegexError,
+ false);
+ }
+ };
+};
+
+static PassRemarksOpt PassRemarksOptLoc;
+static PassRemarksOpt PassRemarksMissedOptLoc;
+static PassRemarksOpt PassRemarksAnalysisOptLoc;
+
+// -pass-remarks
+// Command line flag to enable emitOptimizationRemark()
+static cl::opt<PassRemarksOpt, true, cl::parser<std::string>>
+PassRemarks("pass-remarks", cl::value_desc("pattern"),
+ cl::desc("Enable optimization remarks from passes whose name match "
+ "the given regular expression"),
+ cl::Hidden, cl::location(PassRemarksOptLoc), cl::ValueRequired,
+ cl::ZeroOrMore);
+
+// -pass-remarks-missed
+// Command line flag to enable emitOptimizationRemarkMissed()
+static cl::opt<PassRemarksOpt, true, cl::parser<std::string>> PassRemarksMissed(
+ "pass-remarks-missed", cl::value_desc("pattern"),
+ cl::desc("Enable missed optimization remarks from passes whose name match "
+ "the given regular expression"),
+ cl::Hidden, cl::location(PassRemarksMissedOptLoc), cl::ValueRequired,
+ cl::ZeroOrMore);
+
+// -pass-remarks-analysis
+// Command line flag to enable emitOptimizationRemarkAnalysis()
+static cl::opt<PassRemarksOpt, true, cl::parser<std::string>>
+PassRemarksAnalysis(
+ "pass-remarks-analysis", cl::value_desc("pattern"),
+ cl::desc(
+ "Enable optimization analysis remarks from passes whose name match "
+ "the given regular expression"),
+ cl::Hidden, cl::location(PassRemarksAnalysisOptLoc), cl::ValueRequired,
+ cl::ZeroOrMore);
+}
+