+//===----------------------------------------------------------------------===//
+// TimingInfo Class - This class is used to calculate information about the
+// amount of time each pass takes to execute. This only happens when
+// -time-passes is enabled on the command line.
+//
+
+class TimingInfo {
+ std::map<Pass*, Timer> TimingData;
+ TimerGroup TG;
+
+ // Private ctor, must use 'create' member
+ TimingInfo() : TG("... Pass execution timing report ...") {}
+public:
+ // Create method. If Timing is enabled, this creates and returns a new timing
+ // object, otherwise it returns null.
+ //
+ static TimingInfo *create();
+
+ // TimingDtor - Print out information about timing information
+ ~TimingInfo() {
+ // Delete all of the timers...
+ TimingData.clear();
+ // TimerGroup is deleted next, printing the report.
+ }
+
+ void passStarted(Pass *P) {
+ if (dynamic_cast<AnalysisResolver*>(P)) return;
+ std::map<Pass*, Timer>::iterator I = TimingData.find(P);
+ if (I == TimingData.end())
+ I=TimingData.insert(std::make_pair(P, Timer(P->getPassName(), TG))).first;
+ I->second.startTimer();
+ }
+ void passEnded(Pass *P) {
+ if (dynamic_cast<AnalysisResolver*>(P)) return;
+ std::map<Pass*, Timer>::iterator I = TimingData.find(P);
+ assert (I != TimingData.end() && "passStarted/passEnded not nested right!");
+ I->second.stopTimer();
+ }
+};