+bool BasicBlockPass::runPass(BasicBlock &BB) {
+ Function &F = *BB.getParent();
+ Module &M = *F.getParent();
+ bool Changed = doInitialization(M);
+ Changed |= doInitialization(F);
+ Changed |= runOnBasicBlock(BB);
+ Changed |= doFinalization(F);
+ Changed |= doFinalization(M);
+ return Changed;
+}
+
+//===----------------------------------------------------------------------===//
+// Pass Registration mechanism
+//
+namespace {
+class PassRegistrar {
+ /// PassInfoMap - Keep track of the passinfo object for each registered llvm
+ /// pass.
+ std::map<TypeInfo, PassInfo*> PassInfoMap;
+
+ /// AnalysisGroupInfo - Keep track of information for each analysis group.
+ struct AnalysisGroupInfo {
+ const PassInfo *DefaultImpl;
+ std::set<const PassInfo *> Implementations;
+ AnalysisGroupInfo() : DefaultImpl(0) {}
+ };
+
+ /// AnalysisGroupInfoMap - Information for each analysis group.
+ std::map<const PassInfo *, AnalysisGroupInfo> AnalysisGroupInfoMap;
+
+public:
+
+ const PassInfo *GetPassInfo(const std::type_info &TI) const {
+ std::map<TypeInfo, PassInfo*>::const_iterator I = PassInfoMap.find(TI);
+ return I != PassInfoMap.end() ? I->second : 0;
+ }
+
+ void RegisterPass(PassInfo &PI) {
+ bool Inserted =
+ PassInfoMap.insert(std::make_pair(TypeInfo(PI.getTypeInfo()),&PI)).second;
+ assert(Inserted && "Pass registered multiple times!");
+ }
+
+ void UnregisterPass(PassInfo &PI) {
+ std::map<TypeInfo, PassInfo*>::iterator I =
+ PassInfoMap.find(PI.getTypeInfo());
+ assert(I != PassInfoMap.end() && "Pass registered but not in map!");
+
+ // Remove pass from the map.
+ PassInfoMap.erase(I);
+ }
+
+ void EnumerateWith(PassRegistrationListener *L) {
+ for (std::map<TypeInfo, PassInfo*>::const_iterator I = PassInfoMap.begin(),
+ E = PassInfoMap.end(); I != E; ++I)
+ L->passEnumerate(I->second);
+ }
+
+
+ /// Analysis Group Mechanisms.
+ void RegisterAnalysisGroup(PassInfo *InterfaceInfo,
+ const PassInfo *ImplementationInfo,
+ bool isDefault) {
+ AnalysisGroupInfo &AGI = AnalysisGroupInfoMap[InterfaceInfo];
+ assert(AGI.Implementations.count(ImplementationInfo) == 0 &&
+ "Cannot add a pass to the same analysis group more than once!");
+ AGI.Implementations.insert(ImplementationInfo);
+ if (isDefault) {
+ assert(AGI.DefaultImpl == 0 && InterfaceInfo->getNormalCtor() == 0 &&
+ "Default implementation for analysis group already specified!");
+ assert(ImplementationInfo->getNormalCtor() &&
+ "Cannot specify pass as default if it does not have a default ctor");
+ AGI.DefaultImpl = ImplementationInfo;
+ InterfaceInfo->setNormalCtor(ImplementationInfo->getNormalCtor());
+ }
+ }
+};
+}
+
+static ManagedStatic<PassRegistrar> PassRegistrarObj;
+static std::vector<PassRegistrationListener*> *Listeners = 0;
+
+// getPassInfo - Return the PassInfo data structure that corresponds to this
+// pass...
+const PassInfo *Pass::getPassInfo() const {
+ if (PassInfoCache) return PassInfoCache;
+ return lookupPassInfo(typeid(*this));
+}
+
+const PassInfo *Pass::lookupPassInfo(const std::type_info &TI) {
+ return PassRegistrarObj->GetPassInfo(TI);
+}
+
+void RegisterPassBase::registerPass() {
+ PassRegistrarObj->RegisterPass(PIObj);
+
+ // Notify any listeners.
+ if (Listeners)
+ for (std::vector<PassRegistrationListener*>::iterator
+ I = Listeners->begin(), E = Listeners->end(); I != E; ++I)
+ (*I)->passRegistered(&PIObj);
+}
+
+void RegisterPassBase::unregisterPass() {
+ PassRegistrarObj->UnregisterPass(PIObj);
+}
+
+//===----------------------------------------------------------------------===//
+// Analysis Group Implementation Code
+//===----------------------------------------------------------------------===//
+
+// RegisterAGBase implementation
+//
+RegisterAGBase::RegisterAGBase(const std::type_info &Interface,
+ const std::type_info *Pass, bool isDefault)
+ : RegisterPassBase(Interface),
+ ImplementationInfo(0), isDefaultImplementation(isDefault) {
+
+ InterfaceInfo = const_cast<PassInfo*>(Pass::lookupPassInfo(Interface));
+ if (InterfaceInfo == 0) {
+ // First reference to Interface, register it now.
+ registerPass();
+ InterfaceInfo = &PIObj;
+ }
+ assert(PIObj.isAnalysisGroup() &&
+ "Trying to join an analysis group that is a normal pass!");
+
+ if (Pass) {
+ ImplementationInfo = Pass::lookupPassInfo(*Pass);
+ assert(ImplementationInfo &&
+ "Must register pass before adding to AnalysisGroup!");
+
+ // Make sure we keep track of the fact that the implementation implements
+ // the interface.
+ PassInfo *IIPI = const_cast<PassInfo*>(ImplementationInfo);
+ IIPI->addInterfaceImplemented(InterfaceInfo);
+
+ PassRegistrarObj->RegisterAnalysisGroup(InterfaceInfo, IIPI, isDefault);
+ }
+}
+
+void RegisterAGBase::setGroupName(const char *Name) {
+ assert(InterfaceInfo->getPassName()[0] == 0 && "Interface Name already set!");
+ InterfaceInfo->setPassName(Name);
+}
+
+
+//===----------------------------------------------------------------------===//
+// PassRegistrationListener implementation
+//
+
+// PassRegistrationListener ctor - Add the current object to the list of
+// PassRegistrationListeners...
+PassRegistrationListener::PassRegistrationListener() {
+ if (!Listeners) Listeners = new std::vector<PassRegistrationListener*>();
+ Listeners->push_back(this);
+}
+
+// dtor - Remove object from list of listeners...
+PassRegistrationListener::~PassRegistrationListener() {
+ std::vector<PassRegistrationListener*>::iterator I =
+ std::find(Listeners->begin(), Listeners->end(), this);
+ assert(Listeners && I != Listeners->end() &&
+ "PassRegistrationListener not registered!");
+ Listeners->erase(I);
+
+ if (Listeners->empty()) {
+ delete Listeners;
+ Listeners = 0;
+ }
+}
+
+// enumeratePasses - Iterate over the registered passes, calling the
+// passEnumerate callback on each PassInfo object.
+//
+void PassRegistrationListener::enumeratePasses() {
+ PassRegistrarObj->EnumerateWith(this);