1 //===- RegionPass.cpp - Region Pass and Region Pass Manager ---------------===//
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
14 //===----------------------------------------------------------------------===//
29 //===----------------------------------------------------------------------===//
36   RI = nullptr;  in RGPassManager()
53 /// run - Execute all of the passes scheduled for execution.  Keep track of
56   RI = &getAnalysis<RegionInfoPass>().getRegionInfo();  in runOnFunction()
60   populateInheritedAnalysis(TPM->activeStack);  in runOnFunction()
62   addRegionIntoQueue(*RI->getTopLevelRegion(), RQ);  in runOnFunction()
71       Changed |= RP->doInitialization(R, *this);  in runOnFunction()
86                      CurrentRegion->getNameStr());  in runOnFunction()
94         PassManagerPrettyStackEntry X(P, *CurrentRegion->getEntry());  in runOnFunction()
98         uint64_t RefHash = P->structuralHash(F);  in runOnFunction()
100         LocalChanged = P->runOnRegion(CurrentRegion, *this);  in runOnFunction()
103         if (!LocalChanged && (RefHash != P->structuralHash(F))) {  in runOnFunction()
105                        << P->getPassName() << "\n";  in runOnFunction()
116                                       CurrentRegion->getNameStr());  in runOnFunction()
124       // enabled with the -verify-region-info option.  in runOnFunction()
127         CurrentRegion->verifyRegion();  in runOnFunction()
139                            : CurrentRegion->getNameStr(),  in runOnFunction()
147     RI->clearNodeCache();  in runOnFunction()
153     Changed |= P->doFinalization();  in runOnFunction()
159              RI->dump(); dbgs() << "\n";);  in runOnFunction()
169     P->dumpPassStructure(Offset + 1);  in dumpPassStructure()
175 //===----------------------------------------------------------------------===//
187   void getAnalysisUsage(AnalysisUsage &AU) const override {  in getAnalysisUsage()
191   bool runOnRegion(Region *R, RGPassManager &RGM) override {  in runOnRegion()
192     if (!isFunctionInPrintList(R->getEntry()->getParent()->getName()))  in runOnRegion()
195     for (const auto *BB : R->blocks()) {  in runOnRegion()
197         BB->print(Out);  in runOnRegion()
205   StringRef getPassName() const override { return "Print Region IR"; }  in getPassName()
211 //===----------------------------------------------------------------------===//
224          PMS.top()->getPassManagerType() > PMT_RegionPassManager)  in preparePassManager()
231   if (PMS.top()->getPassManagerType() == PMT_RegionPassManager &&  in preparePassManager()
232     !PMS.top()->preserveHigherLevelAnalysis(this))  in preparePassManager()
241          PMS.top()->getPassManagerType() > PMT_RegionPassManager)  in assignPassManager()
247   if (PMS.top()->getPassManagerType() == PMT_RegionPassManager)  in assignPassManager()
256     RGPM->populateInheritedAnalysis(PMS);  in assignPassManager()
259     PMTopLevelManager *TPM = PMD->getTopLevelManager();  in assignPassManager()
260     TPM->addIndirectPassManager(RGPM);  in assignPassManager()
264     TPM->schedulePass(RGPM);  in assignPassManager()
270   RGPM->add(this);  in assignPassManager()
284   Function &F = *R.getEntry()->getParent();  in skipRegion()
287       !Gate.shouldRunPass(this->getPassName(), getDescription(R)))  in skipRegion()