-AnalysisType *Pass::getAnalysisToUpdate() const {
- assert(Resolver && "Pass not resident in a PassManager object!");
- const PassInfo *PI = getClassPassInfo<AnalysisType>();
- if (PI == 0) return 0;
- return dynamic_cast<AnalysisType*>(Resolver->getAnalysisToUpdate(PI));
+AnalysisType &Pass::getAnalysis(Function &F) {
+ assert(Resolver &&"Pass has not been inserted into a PassManager object!");
+
+ return getAnalysisID<AnalysisType>(&AnalysisType::ID, F);
+}
+
+template<typename AnalysisType>
+AnalysisType &Pass::getAnalysisID(AnalysisID PI, Function &F) {
+ assert(PI && "getAnalysis for unregistered pass!");
+ assert(Resolver && "Pass has not been inserted into a PassManager object!");
+ // PI *must* appear in AnalysisImpls. Because the number of passes used
+ // should be a small number, we just do a linear search over a (dense)
+ // vector.
+ Pass *ResultPass = Resolver->findImplPass(this, PI, F);
+ assert(ResultPass && "Unable to find requested analysis info");
+
+ // Because the AnalysisType may not be a subclass of pass (for
+ // AnalysisGroups), we use getAdjustedAnalysisPointer here to potentially
+ // adjust the return pointer (because the class may multiply inherit, once
+ // from pass, once from AnalysisType).
+ return *(AnalysisType*)ResultPass->getAdjustedAnalysisPointer(PI);