void dump() const; // dump - call print(std::cerr, 0);
virtual void assignPassManager(PMStack &PMS) {}
+ virtual void setupPassManager(PMStack &PMS) {}
+
// Access AnalysisResolver
inline void setResolver(AnalysisResolver *AR) { Resolver = AR; }
inline AnalysisResolver *getResolver() { return Resolver; }
virtual bool runPass(BasicBlock&) { return false; }
virtual void assignPassManager(PMStack &PMS);
+
// Force out-of-line virtual method.
virtual ~ModulePass();
};
bool run(Function &F);
virtual void assignPassManager(PMStack &PMS);
+ virtual void setupPassManager(PMStack &PMS);
};
virtual bool runPass(BasicBlock &BB);
virtual void assignPassManager(PMStack &PMS);
+ virtual void setupPassManager(PMStack &PMS);
};
/// Different types of internal pass managers. External pass managers
/// PMStack
/// Top level pass manager (see PasManager.cpp) maintains active Pass Managers
-/// using PMStack. Each Pass implements assignPassManager() to connect itself
-/// with appropriate manager. assignPassManager() walks PMStack to find
+/// using PMStack. Each Pass implements setupPassManager() and
+/// assignPassManager() to connect itself with appropriate manager.
+/// setupPassManager() creates new pass manager if required before adding
+/// required analysis passes. assignPassManager() walks PMStack to find
/// suitable manager.
///
/// PMStack is just a wrapper around standard deque that overrides pop() and
/// the manager. Remove dead passes. This is a recursive function.
void PMTopLevelManager::schedulePass(Pass *P) {
- // TODO : Allocate function manager for this pass, other wise required set
- // may be inserted into previous function manager
+ P->setupPassManager(activeStack);
AnalysisUsage AnUsage;
P->getAnalysisUsage(AnUsage);
MPP->add(this);
}
-/// Find appropriate Function Pass Manager or Call Graph Pass Manager
-/// in the PM Stack and add self into that manager.
-void FunctionPass::assignPassManager(PMStack &PMS) {
+/// Setup Pass Manager in advance before checking availability of
+/// required analysis passes.
+void FunctionPass::setupPassManager(PMStack &PMS) {
// Find Module Pass Manager (TODO : Or Call Graph Pass Manager)
while(!PMS.empty()) {
if (PMS.top()->getPassManagerType() > PMT_FunctionPassManager)
PMS.pop();
else
- break;
+ break;
}
- FPPassManager *FPP = dynamic_cast<FPPassManager *>(PMS.top());
-
- // Create new Function Pass Manager
- if (!FPP) {
- assert(!PMS.empty() && "Unable to create Function Pass Manager");
- PMDataManager *PMD = PMS.top();
- // [1] Create new Function Pass Manager
- FPP = new FPPassManager(PMD->getDepth() + 1);
+ assert(!PMS.empty() && "Unable to create Function Pass Manager");
- // [2] Set up new manager's top level manager
- PMTopLevelManager *TPM = PMD->getTopLevelManager();
- TPM->addIndirectPassManager(FPP);
+ if (PMS.top()->getPassManagerType() == PMT_FunctionPassManager
+ || PMS.top()->getPassManagerType() == PMT_CallGraphPassManager)
+ return;
+
+ PMDataManager *PMD = PMS.top();
+
+ // [1] Create new Function Pass Manager
+ FPPassManager *FPP = new FPPassManager(PMD->getDepth() + 1);
+
+ // [2] Set up new manager's top level manager
+ PMTopLevelManager *TPM = PMD->getTopLevelManager();
+ TPM->addIndirectPassManager(FPP);
+
+ // [3] Assign manager to manage this new manager. This may create
+ // and push new managers into PMS
+ Pass *P = dynamic_cast<Pass *>(FPP);
+ P->assignPassManager(PMS);
+
+ // [4] Push new manager into PMS
+ PMS.push(FPP);
+}
- // [3] Assign manager to manage this new manager. This may create
- // and push new managers into PMS
- Pass *P = dynamic_cast<Pass *>(FPP);
- P->assignPassManager(PMS);
+/// Find appropriate Function Pass Manager or Call Graph Pass Manager
+/// in the PM Stack and add self into that manager.
+void FunctionPass::assignPassManager(PMStack &PMS) {
- // [4] Push new manager into PMS
- PMS.push(FPP);
- }
+ PMDataManager *PMD = dynamic_cast<PMDataManager *>(PMS.top());
+ assert(PMD && "Unable to assign Pass Manager");
- // Assign FPP as the manager of this pass.
- FPP->add(this);
+ PMD->add(this);
}
-/// Find appropriate Basic Pass Manager or Call Graph Pass Manager
-/// in the PM Stack and add self into that manager.
-void BasicBlockPass::assignPassManager(PMStack &PMS) {
+/// Setup Pass Manager in advance before checking availability of
+/// required analysis passes.
+void BasicBlockPass::setupPassManager(PMStack &PMS) {
BBPassManager *BBP = NULL;
BBP = dynamic_cast<BBPassManager *>(PMS.top());
}
- // If leaf manager is not Basic Block Pass manager then create new
- // basic Block Pass manager.
-
- if (!BBP) {
- assert(!PMS.empty() && "Unable to create BasicBlock Pass Manager");
- PMDataManager *PMD = PMS.top();
-
- // [1] Create new Basic Block Manager
- BBP = new BBPassManager(PMD->getDepth() + 1);
-
- // [2] Set up new manager's top level manager
- // Basic Block Pass Manager does not live by itself
- PMTopLevelManager *TPM = PMD->getTopLevelManager();
- TPM->addIndirectPassManager(BBP);
+ if (BBP)
+ return;
+ assert(!PMS.empty() && "Unable to create BasicBlock Pass Manager");
+ PMDataManager *PMD = PMS.top();
+
+ // [1] Create new Basic Block Manager
+ BBP = new BBPassManager(PMD->getDepth() + 1);
+
+ // [2] Set up new manager's top level manager
+ // Basic Block Pass Manager does not live by itself
+ PMTopLevelManager *TPM = PMD->getTopLevelManager();
+ TPM->addIndirectPassManager(BBP);
+
// [3] Assign manager to manage this new manager. This may create
// and push new managers into PMS
- Pass *P = dynamic_cast<Pass *>(BBP);
- P->assignPassManager(PMS);
+ Pass *P = dynamic_cast<Pass *>(BBP);
+ P->assignPassManager(PMS);
+
+ // [4] Push new manager into PMS
+ PMS.push(BBP);
+}
- // [4] Push new manager into PMS
- PMS.push(BBP);
- }
+/// Find appropriate Basic Pass Manager or Call Graph Pass Manager
+/// in the PM Stack and add self into that manager.
+void BasicBlockPass::assignPassManager(PMStack &PMS) {
+
+ PMDataManager *PMD = dynamic_cast<PMDataManager *>(PMS.top());
+ assert(PMD && "Unable to assign Pass Manager");
- // Assign BBP as the manager of this pass.
- BBP->add(this);
+ PMD->add(this);
}