// for a pass.
//
AnalysisUsage &addRequiredID(AnalysisID ID) {
+ assert(ID && "Pass class not registered!");
Required.push_back(ID);
return *this;
}
template<class PassClass>
AnalysisUsage &addRequired() {
- assert(Pass::getClassPassInfo<PassClass>() && "Pass class not registered!");
- Required.push_back(Pass::getClassPassInfo<PassClass>());
- return *this;
+ return addRequiredID(Pass::getClassPassInfo<PassClass>());
}
- template<class PassClass>
- AnalysisUsage &addRequiredTransitive() {
- AnalysisID ID = Pass::getClassPassInfo<PassClass>();
+ AnalysisUsage &addRequiredTransitiveID(AnalysisID ID) {
assert(ID && "Pass class not registered!");
Required.push_back(ID);
RequiredTransitive.push_back(ID);
return *this;
}
+ template<class PassClass>
+ AnalysisUsage &addRequiredTransitive() {
+ AnalysisID ID = Pass::getClassPassInfo<PassClass>();
+ return addRequiredTransitiveID(ID);
+ }
// addPreserved - Add the specified ID to the set of analyses preserved by
// this pass
AnalysisResolver(); // DO NOT IMPLEMENT
public:
- AnalysisResolver(PMDataManager &P) : PM(P) { }
+ explicit AnalysisResolver(PMDataManager &P) : PM(P) { }
inline PMDataManager &getPMDataManager() { return PM; }
return ResultPass;
}
+ // Find pass that is implementing PI. Initialize pass for Function F.
+ Pass *findImplPass(Pass *P, const PassInfo *PI, Function &F);
+
void addAnalysisImplsPair(const PassInfo *PI, Pass *P) {
std::pair<const PassInfo*, Pass*> pir = std::make_pair(PI,P);
AnalysisImpls.push_back(pir);
return *Result;
}
+/// getAnalysis<AnalysisType>() - This function is used by subclasses to get
+/// to the analysis information that they claim to use by overriding the
+/// getAnalysisUsage function.
+///
+template<typename AnalysisType>
+AnalysisType &Pass::getAnalysis(Function &F) {
+ assert(Resolver &&"Pass has not been inserted into a PassManager object!");
+
+ return getAnalysisID<AnalysisType>(getClassPassInfo<AnalysisType>(), F);
+}
+
+template<typename AnalysisType>
+AnalysisType &Pass::getAnalysisID(const PassInfo *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 &&
+ "getAnalysis*() called on an analysis that was not "
+ "'required' by pass!");
+
+ // Because the AnalysisType may not be a subclass of pass (for
+ // AnalysisGroups), we must use dynamic_cast here to potentially adjust the
+ // return pointer (because the class may multiply inherit, once from pass,
+ // once from AnalysisType).
+ //
+ AnalysisType *Result = dynamic_cast<AnalysisType*>(ResultPass);
+ assert(Result && "Pass does not implement interface required!");
+ return *Result;
+}
+
} // End llvm namespace
#endif