X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FVMCore%2FPassManager.cpp;h=5cf2905733acdee2e90312f5e80794bd7f114685;hb=bda20650d2ec113bd78b8c809dbfafa7f7077152;hp=c4dfe1409b94379ab52a92c00a0011e31509fa34;hpb=0d2725ad696afb60c86076469031783669809739;p=oota-llvm.git diff --git a/lib/VMCore/PassManager.cpp b/lib/VMCore/PassManager.cpp index c4dfe1409b9..5cf2905733a 100644 --- a/lib/VMCore/PassManager.cpp +++ b/lib/VMCore/PassManager.cpp @@ -7,12 +7,15 @@ // //===----------------------------------------------------------------------===// // -// This file implements the LLVM Pass Manager infrastructure. +// This file implements the LLVM Pass Manager infrastructure. // //===----------------------------------------------------------------------===// #include "llvm/PassManagers.h" +#include "llvm/PassManager.h" +#include "llvm/DebugInfoProbe.h" +#include "llvm/Assembly/PrintModulePass.h" #include "llvm/Assembly/Writer.h" #include "llvm/Support/CommandLine.h" #include "llvm/Support/Debug.h" @@ -20,10 +23,10 @@ #include "llvm/Module.h" #include "llvm/Support/ErrorHandling.h" #include "llvm/Support/ManagedStatic.h" +#include "llvm/Support/PassNameParser.h" #include "llvm/Support/raw_ostream.h" -#include "llvm/System/Mutex.h" -#include "llvm/System/Threading.h" -#include "llvm-c/Core.h" +#include "llvm/Support/Mutex.h" +#include "llvm/ADT/StringMap.h" #include #include #include @@ -55,6 +58,61 @@ PassDebugging("debug-pass", cl::Hidden, clEnumVal(Executions, "print pass name before it is executed"), clEnumVal(Details , "print pass details when it is executed"), clEnumValEnd)); + +typedef llvm::cl::list +PassOptionList; + +// Print IR out before/after specified passes. +static PassOptionList +PrintBefore("print-before", + llvm::cl::desc("Print IR before specified passes"), + cl::Hidden); + +static PassOptionList +PrintAfter("print-after", + llvm::cl::desc("Print IR after specified passes"), + cl::Hidden); + +static cl::opt +PrintBeforeAll("print-before-all", + llvm::cl::desc("Print IR before each pass"), + cl::init(false)); +static cl::opt +PrintAfterAll("print-after-all", + llvm::cl::desc("Print IR after each pass"), + cl::init(false)); + +/// This is a helper to determine whether to print IR before or +/// after a pass. + +static bool ShouldPrintBeforeOrAfterPass(const void *PassID, + PassOptionList &PassesToPrint) { + if (const llvm::PassInfo *PI = + PassRegistry::getPassRegistry()->getPassInfo(PassID)) { + for (unsigned i = 0, ie = PassesToPrint.size(); i < ie; ++i) { + const llvm::PassInfo *PassInf = PassesToPrint[i]; + if (PassInf) + if (PassInf->getPassArgument() == PI->getPassArgument()) { + return true; + } + } + } + return false; +} + + +/// This is a utility to check whether a pass should have IR dumped +/// before it. +static bool ShouldPrintBeforePass(const void *PassID) { + return PrintBeforeAll || ShouldPrintBeforeOrAfterPass(PassID, PrintBefore); +} + +/// This is a utility to check whether a pass should have IR dumped +/// after it. +static bool ShouldPrintAfterPass(const void *PassID) { + return PrintAfterAll || ShouldPrintBeforeOrAfterPass(PassID, PrintAfter); +} + } // End of llvm namespace /// isPassDebuggingExecutionsOrMore - Return true if -debug-pass=Executions @@ -71,9 +129,9 @@ void PassManagerPrettyStackEntry::print(raw_ostream &OS) const { OS << "Releasing pass '"; else OS << "Running pass '"; - + OS << P->getPassName() << "'"; - + if (M) { OS << " on module '" << M->getModuleIdentifier() << "'.\n"; return; @@ -109,8 +167,8 @@ class BBPassManager : public PMDataManager, public FunctionPass { public: static char ID; - explicit BBPassManager(int Depth) - : PMDataManager(Depth), FunctionPass(&ID) {} + explicit BBPassManager(int Depth) + : PMDataManager(Depth), FunctionPass(ID) {} /// Execute all of the passes scheduled for execution. Keep track of /// whether any of the passes modifies the function, and if so, return true. @@ -149,8 +207,8 @@ public: return BP; } - virtual PassManagerType getPassManagerType() const { - return PMT_BasicBlockPassManager; + virtual PassManagerType getPassManagerType() const { + return PMT_BasicBlockPassManager; } }; @@ -170,9 +228,9 @@ private: bool wasRun; public: static char ID; - explicit FunctionPassManagerImpl(int Depth) : - Pass(PT_PassManager, &ID), PMDataManager(Depth), - PMTopLevelManager(TLM_Function), wasRun(false) { } + explicit FunctionPassManagerImpl(int Depth) : + Pass(PT_PassManager, ID), PMDataManager(Depth), + PMTopLevelManager(new FPPassManager(1)), wasRun(false) {} /// add - Add a pass to the queue of passes to run. This passes ownership of /// the Pass to the PassManager. When the PassManager is destroyed, the pass @@ -181,7 +239,12 @@ public: void add(Pass *P) { schedulePass(P); } - + + /// createPrinterPass - Get a function printer pass. + Pass *createPrinterPass(raw_ostream &O, const std::string &Banner) const { + return createPrintFunctionPass(Banner, &O); + } + // Prepare for running an on the fly pass, freeing memory if needed // from a previous run. void releaseMemoryOnTheFly(); @@ -193,12 +256,12 @@ public: /// doInitialization - Run all of the initializers for the function passes. /// bool doInitialization(Module &M); - + /// doFinalization - Run all of the finalizers for the function passes. /// bool doFinalization(Module &M); - + virtual PMDataManager *getAsPMDataManager() { return this; } virtual Pass *getAsPass() { return this; } @@ -207,7 +270,7 @@ public: Info.setPreservesAll(); } - inline void addTopLevelPass(Pass *P) { + void addTopLevelPass(Pass *P) { if (ImmutablePass *IP = P->getAsImmutablePass()) { // P is a immutable pass and it will be managed by this // top level manager. Set up analysis resolver to connect them. @@ -217,7 +280,7 @@ public: addImmutablePass(IP); recordAvailableAnalysis(IP); } else { - P->assignPassManager(activeStack); + P->assignPassManager(activeStack, PMT_FunctionPassManager); } } @@ -230,6 +293,7 @@ public: }; char FunctionPassManagerImpl::ID = 0; + //===----------------------------------------------------------------------===// // MPPassManager // @@ -240,11 +304,11 @@ class MPPassManager : public Pass, public PMDataManager { public: static char ID; explicit MPPassManager(int Depth) : - Pass(PT_PassManager, &ID), PMDataManager(Depth) { } + Pass(PT_PassManager, ID), PMDataManager(Depth) { } // Delete on the fly managers. virtual ~MPPassManager() { - for (std::map::iterator + for (std::map::iterator I = OnTheFlyManagers.begin(), E = OnTheFlyManagers.end(); I != E; ++I) { FunctionPassManagerImpl *FPP = I->second; @@ -252,6 +316,11 @@ public: } } + /// createPrinterPass - Get a module printer pass. + Pass *createPrinterPass(raw_ostream &O, const std::string &Banner) const { + return createPrintModulePass(&O, false, Banner); + } + /// run - Execute all of the passes scheduled for execution. Keep track of /// whether any of the passes modifies the module, and if so, return true. bool runOnModule(Module &M); @@ -266,10 +335,10 @@ public: /// through getAnalysis interface. virtual void addLowerLevelRequiredPass(Pass *P, Pass *RequiredPass); - /// Return function pass corresponding to PassInfo PI, that is + /// Return function pass corresponding to PassInfo PI, that is /// required by module pass MP. Instantiate analysis pass, by using /// its runOnFunction() for function F. - virtual Pass* getOnTheFlyPass(Pass *MP, const PassInfo *PI, Function &F); + virtual Pass* getOnTheFlyPass(Pass *MP, AnalysisID PI, Function &F); virtual const char *getPassName() const { return "Module Pass Manager"; @@ -297,8 +366,8 @@ public: return static_cast(PassVector[N]); } - virtual PassManagerType getPassManagerType() const { - return PMT_ModulePassManager; + virtual PassManagerType getPassManagerType() const { + return PMT_ModulePassManager; } private: @@ -320,8 +389,8 @@ class PassManagerImpl : public Pass, public: static char ID; explicit PassManagerImpl(int Depth) : - Pass(PT_PassManager, &ID), PMDataManager(Depth), - PMTopLevelManager(TLM_Pass) { } + Pass(PT_PassManager, ID), PMDataManager(Depth), + PMTopLevelManager(new MPPassManager(1)) {} /// add - Add a pass to the queue of passes to run. This passes ownership of /// the Pass to the PassManager. When the PassManager is destroyed, the pass @@ -330,7 +399,12 @@ public: void add(Pass *P) { schedulePass(P); } - + + /// createPrinterPass - Get a module printer pass. + Pass *createPrinterPass(raw_ostream &O, const std::string &Banner) const { + return createPrintModulePass(&O, false, Banner); + } + /// run - Execute all of the passes scheduled for execution. Keep track of /// whether any of the passes modifies the module, and if so, return true. bool run(Module &M); @@ -340,7 +414,7 @@ public: Info.setPreservesAll(); } - inline void addTopLevelPass(Pass *P) { + void addTopLevelPass(Pass *P) { if (ImmutablePass *IP = P->getAsImmutablePass()) { // P is a immutable pass and it will be managed by this // top level manager. Set up analysis resolver to connect them. @@ -350,7 +424,7 @@ public: addImmutablePass(IP); recordAvailableAnalysis(IP); } else { - P->assignPassManager(activeStack); + P->assignPassManager(activeStack, PMT_ModulePassManager); } } @@ -369,6 +443,20 @@ char PassManagerImpl::ID = 0; namespace { +//===----------------------------------------------------------------------===// +// DebugInfoProbe + +static DebugInfoProbeInfo *TheDebugProbe; +static void createDebugInfoProbe() { + if (TheDebugProbe) return; + + // Constructed the first time this is called. This guarantees that the + // object will be constructed, if -enable-debug-info-probe is set, + // before static globals, thus it will be destroyed before them. + static ManagedStatic DIP; + TheDebugProbe = &*DIP; +} + //===----------------------------------------------------------------------===// /// TimingInfo Class - This class is used to calculate information about the /// amount of time each pass takes to execute. This only happens when @@ -378,17 +466,19 @@ namespace { static ManagedStatic > TimingInfoMutex; class TimingInfo { - std::map TimingData; + DenseMap TimingData; TimerGroup TG; - public: // Use 'create' member to get this. TimingInfo() : TG("... Pass execution timing report ...") {} - + // TimingDtor - Print out information about timing information ~TimingInfo() { - // Delete all of the timers... - TimingData.clear(); + // Delete all of the timers, which accumulate their info into the + // TimerGroup. + for (DenseMap::iterator I = TimingData.begin(), + E = TimingData.end(); I != E; ++I) + delete I->second; // TimerGroup is deleted next, printing the report. } @@ -397,18 +487,15 @@ public: // null. It may be called multiple times. static void createTheTimeInfo(); - /// passStarted - This method creates a timer for the given pass if it doesn't - /// already have one, and starts the timer. - Timer *passStarted(Pass *P) { - if (P->getAsPMDataManager()) + /// getPassTimer - Return the timer for the specified pass if it exists. + Timer *getPassTimer(Pass *P) { + if (P->getAsPMDataManager()) return 0; sys::SmartScopedLock Lock(*TimingInfoMutex); - std::map::iterator I = TimingData.find(P); - if (I == TimingData.end()) - I=TimingData.insert(std::make_pair(P, Timer(P->getPassName(), TG))).first; - Timer *T = &I->second; - T->startTimer(); + Timer *&T = TimingData[P]; + if (T == 0) + T = new Timer(P->getPassName(), TG); return T; } }; @@ -421,47 +508,71 @@ static TimingInfo *TheTimeInfo; // PMTopLevelManager implementation /// Initialize top level manager. Create first pass manager. -PMTopLevelManager::PMTopLevelManager(enum TopLevelManagerType t) { - if (t == TLM_Pass) { - MPPassManager *MPP = new MPPassManager(1); - MPP->setTopLevelManager(this); - addPassManager(MPP); - activeStack.push(MPP); - } else if (t == TLM_Function) { - FPPassManager *FPP = new FPPassManager(1); - FPP->setTopLevelManager(this); - addPassManager(FPP); - activeStack.push(FPP); - } +PMTopLevelManager::PMTopLevelManager(PMDataManager *PMDM) { + PMDM->setTopLevelManager(this); + addPassManager(PMDM); + activeStack.push(PMDM); } /// Set pass P as the last user of the given analysis passes. -void PMTopLevelManager::setLastUser(SmallVector &AnalysisPasses, - Pass *P) { - for (SmallVector::iterator I = AnalysisPasses.begin(), +void +PMTopLevelManager::setLastUser(const SmallVectorImpl &AnalysisPasses, + Pass *P) { + unsigned PDepth = 0; + if (P->getResolver()) + PDepth = P->getResolver()->getPMDataManager().getDepth(); + + for (SmallVectorImpl::const_iterator I = AnalysisPasses.begin(), E = AnalysisPasses.end(); I != E; ++I) { Pass *AP = *I; LastUser[AP] = P; - + if (P == AP) continue; + // Update the last users of passes that are required transitive by AP. + AnalysisUsage *AnUsage = findAnalysisUsage(AP); + const AnalysisUsage::VectorType &IDs = AnUsage->getRequiredTransitiveSet(); + SmallVector LastUses; + SmallVector LastPMUses; + for (AnalysisUsage::VectorType::const_iterator I = IDs.begin(), + E = IDs.end(); I != E; ++I) { + Pass *AnalysisPass = findAnalysisPass(*I); + assert(AnalysisPass && "Expected analysis pass to exist."); + AnalysisResolver *AR = AnalysisPass->getResolver(); + assert(AR && "Expected analysis resolver to exist."); + unsigned APDepth = AR->getPMDataManager().getDepth(); + + if (PDepth == APDepth) + LastUses.push_back(AnalysisPass); + else if (PDepth > APDepth) + LastPMUses.push_back(AnalysisPass); + } + + setLastUser(LastUses, P); + + // If this pass has a corresponding pass manager, push higher level + // analysis to this pass manager. + if (P->getResolver()) + setLastUser(LastPMUses, P->getResolver()->getPMDataManager().getAsPass()); + + // If AP is the last user of other passes then make P last user of // such passes. for (DenseMap::iterator LUI = LastUser.begin(), LUE = LastUser.end(); LUI != LUE; ++LUI) { if (LUI->second == AP) // DenseMap iterator is not invalidated here because - // this is just updating exisitng entry. + // this is just updating existing entries. LastUser[LUI->first] = P; } } } /// Collect passes whose last user is P -void PMTopLevelManager::collectLastUses(SmallVector &LastUses, +void PMTopLevelManager::collectLastUses(SmallVectorImpl &LastUses, Pass *P) { - DenseMap >::iterator DMI = + DenseMap >::iterator DMI = InversedLastUser.find(P); if (DMI == InversedLastUser.end()) return; @@ -477,7 +588,7 @@ void PMTopLevelManager::collectLastUses(SmallVector &LastUses, AnalysisUsage *PMTopLevelManager::findAnalysisUsage(Pass *P) { AnalysisUsage *AnUsage = NULL; DenseMap::iterator DMI = AnUsageMap.find(P); - if (DMI != AnUsageMap.end()) + if (DMI != AnUsageMap.end()) AnUsage = DMI->second; else { AnUsage = new AnalysisUsage(); @@ -501,8 +612,9 @@ void PMTopLevelManager::schedulePass(Pass *P) { // If P is an analysis pass and it is available then do not // generate the analysis again. Stale analysis info should not be // available at this point. - if (P->getPassInfo() && - P->getPassInfo()->isAnalysis() && findAnalysisPass(P->getPassInfo())) { + const PassInfo *PI = + PassRegistry::getPassRegistry()->getPassInfo(P->getPassID()); + if (PI && PI->isAnalysis() && findAnalysisPass(P->getPassID())) { delete P; return; } @@ -512,14 +624,16 @@ void PMTopLevelManager::schedulePass(Pass *P) { bool checkAnalysis = true; while (checkAnalysis) { checkAnalysis = false; - + const AnalysisUsage::VectorType &RequiredSet = AnUsage->getRequiredSet(); for (AnalysisUsage::VectorType::const_iterator I = RequiredSet.begin(), E = RequiredSet.end(); I != E; ++I) { - + Pass *AnalysisPass = findAnalysisPass(*I); if (!AnalysisPass) { - AnalysisPass = (*I)->createPass(); + const PassInfo *PI = PassRegistry::getPassRegistry()->getPassInfo(*I); + assert(PI && "Expected required passes to be initialized"); + AnalysisPass = PI->createPass(); if (P->getPotentialPassManagerType () == AnalysisPass->getPotentialPassManagerType()) // Schedule analysis pass that is managed by the same pass manager. @@ -528,12 +642,12 @@ void PMTopLevelManager::schedulePass(Pass *P) { AnalysisPass->getPotentialPassManagerType()) { // Schedule analysis pass that is managed by a new manager. schedulePass(AnalysisPass); - // Recheck analysis passes to ensure that required analysises that + // Recheck analysis passes to ensure that required analyses that // are already checked are still available. checkAnalysis = true; } else - // Do not schedule this analysis. Lower level analsyis + // Do not schedule this analysis. Lower level analsyis // passes are run on the fly. delete AnalysisPass; } @@ -549,36 +663,41 @@ void PMTopLevelManager::schedulePass(Pass *P) { /// then return NULL. Pass *PMTopLevelManager::findAnalysisPass(AnalysisID AID) { - Pass *P = NULL; // Check pass managers - for (SmallVector::iterator I = PassManagers.begin(), - E = PassManagers.end(); P == NULL && I != E; ++I) { - PMDataManager *PMD = *I; - P = PMD->findAnalysisPass(AID, false); - } + for (SmallVectorImpl::iterator I = PassManagers.begin(), + E = PassManagers.end(); I != E; ++I) + if (Pass *P = (*I)->findAnalysisPass(AID, false)) + return P; // Check other pass managers - for (SmallVector::iterator + for (SmallVectorImpl::iterator I = IndirectPassManagers.begin(), - E = IndirectPassManagers.end(); P == NULL && I != E; ++I) - P = (*I)->findAnalysisPass(AID, false); - - for (SmallVector::iterator I = ImmutablePasses.begin(), - E = ImmutablePasses.end(); P == NULL && I != E; ++I) { - const PassInfo *PI = (*I)->getPassInfo(); + E = IndirectPassManagers.end(); I != E; ++I) + if (Pass *P = (*I)->findAnalysisPass(AID, false)) + return P; + + // Check the immutable passes. Iterate in reverse order so that we find + // the most recently registered passes first. + for (SmallVector::reverse_iterator I = + ImmutablePasses.rbegin(), E = ImmutablePasses.rend(); I != E; ++I) { + AnalysisID PI = (*I)->getPassID(); if (PI == AID) - P = *I; + return *I; // If Pass not found then check the interfaces implemented by Immutable Pass - if (!P) { - const std::vector &ImmPI = - PI->getInterfacesImplemented(); - if (std::find(ImmPI.begin(), ImmPI.end(), AID) != ImmPI.end()) - P = *I; + const PassInfo *PassInf = + PassRegistry::getPassRegistry()->getPassInfo(PI); + assert(PassInf && "Expected all immutable passes to be initialized"); + const std::vector &ImmPI = + PassInf->getInterfacesImplemented(); + for (std::vector::const_iterator II = ImmPI.begin(), + EE = ImmPI.end(); II != EE; ++II) { + if ((*II)->getTypeInfo() == AID) + return *I; } } - return P; + return 0; } // Print passes managed by this top level manager. @@ -591,7 +710,7 @@ void PMTopLevelManager::dumpPasses() const { for (unsigned i = 0, e = ImmutablePasses.size(); i != e; ++i) { ImmutablePasses[i]->dumpPassStructure(0); } - + // Every class that derives from PMDataManager also derives from Pass // (sometimes indirectly), but there's no inheritance relationship // between PMDataManager and Pass, so we have to getAsPass to get @@ -607,6 +726,14 @@ void PMTopLevelManager::dumpArguments() const { return; dbgs() << "Pass Arguments: "; + for (SmallVector::const_iterator I = + ImmutablePasses.begin(), E = ImmutablePasses.end(); I != E; ++I) + if (const PassInfo *PI = + PassRegistry::getPassRegistry()->getPassInfo((*I)->getPassID())) { + assert(PI && "Expected all immutable passes to be initialized"); + if (!PI->isAnalysisGroup()) + dbgs() << " -" << PI->getPassArgument(); + } for (SmallVector::const_iterator I = PassManagers.begin(), E = PassManagers.end(); I != E; ++I) (*I)->dumpPassArguments(); @@ -614,18 +741,19 @@ void PMTopLevelManager::dumpArguments() const { } void PMTopLevelManager::initializeAllAnalysisInfo() { - for (SmallVector::iterator I = PassManagers.begin(), + for (SmallVectorImpl::iterator I = PassManagers.begin(), E = PassManagers.end(); I != E; ++I) (*I)->initializeAnalysisInfo(); - + // Initailize other pass managers - for (SmallVector::iterator I = IndirectPassManagers.begin(), - E = IndirectPassManagers.end(); I != E; ++I) + for (SmallVectorImpl::iterator + I = IndirectPassManagers.begin(), E = IndirectPassManagers.end(); + I != E; ++I) (*I)->initializeAnalysisInfo(); for (DenseMap::iterator DMI = LastUser.begin(), DME = LastUser.end(); DMI != DME; ++DMI) { - DenseMap >::iterator InvDMI = + DenseMap >::iterator InvDMI = InversedLastUser.find(DMI->second); if (InvDMI != InversedLastUser.end()) { SmallPtrSet &L = InvDMI->second; @@ -639,11 +767,11 @@ void PMTopLevelManager::initializeAllAnalysisInfo() { /// Destructor PMTopLevelManager::~PMTopLevelManager() { - for (SmallVector::iterator I = PassManagers.begin(), + for (SmallVectorImpl::iterator I = PassManagers.begin(), E = PassManagers.end(); I != E; ++I) delete *I; - - for (SmallVector::iterator + + for (SmallVectorImpl::iterator I = ImmutablePasses.begin(), E = ImmutablePasses.end(); I != E; ++I) delete *I; @@ -657,16 +785,19 @@ PMTopLevelManager::~PMTopLevelManager() { /// Augement AvailableAnalysis by adding analysis made available by pass P. void PMDataManager::recordAvailableAnalysis(Pass *P) { - const PassInfo *PI = P->getPassInfo(); - if (PI == 0) return; - + AnalysisID PI = P->getPassID(); + AvailableAnalysis[PI] = P; - //This pass is the current implementation of all of the interfaces it - //implements as well. - const std::vector &II = PI->getInterfacesImplemented(); + assert(!AvailableAnalysis.empty()); + + // This pass is the current implementation of all of the interfaces it + // implements as well. + const PassInfo *PInf = PassRegistry::getPassRegistry()->getPassInfo(PI); + if (PInf == 0) return; + const std::vector &II = PInf->getInterfacesImplemented(); for (unsigned i = 0, e = II.size(); i != e; ++i) - AvailableAnalysis[II[i]] = P; + AvailableAnalysis[II[i]->getTypeInfo()] = P; } // Return true if P preserves high level analysis used by other @@ -675,18 +806,18 @@ bool PMDataManager::preserveHigherLevelAnalysis(Pass *P) { AnalysisUsage *AnUsage = TPM->findAnalysisUsage(P); if (AnUsage->getPreservesAll()) return true; - + const AnalysisUsage::VectorType &PreservedSet = AnUsage->getPreservedSet(); - for (SmallVector::iterator I = HigherLevelAnalysis.begin(), + for (SmallVectorImpl::iterator I = HigherLevelAnalysis.begin(), E = HigherLevelAnalysis.end(); I != E; ++I) { Pass *P1 = *I; if (P1->getAsImmutablePass() == 0 && std::find(PreservedSet.begin(), PreservedSet.end(), - P1->getPassInfo()) == + P1->getPassID()) == PreservedSet.end()) return false; } - + return true; } @@ -704,11 +835,8 @@ void PMDataManager::verifyPreservedAnalysis(Pass *P) { E = PreservedSet.end(); I != E; ++I) { AnalysisID AID = *I; if (Pass *AP = findAnalysisPass(AID, true)) { - - Timer *T = 0; - if (TheTimeInfo) T = TheTimeInfo->passStarted(AP); + TimeRegion PassTimer(getPassTimer(AP)); AP->verifyAnalysis(); - if (T) T->stopTimer(); } } } @@ -724,7 +852,7 @@ void PMDataManager::removeNotPreservedAnalysis(Pass *P) { E = AvailableAnalysis.end(); I != E; ) { std::map::iterator Info = I++; if (Info->second->getAsImmutablePass() == 0 && - std::find(PreservedSet.begin(), PreservedSet.end(), Info->first) == + std::find(PreservedSet.begin(), PreservedSet.end(), Info->first) == PreservedSet.end()) { // Remove this analysis if (PassDebugging >= Details) { @@ -743,12 +871,12 @@ void PMDataManager::removeNotPreservedAnalysis(Pass *P) { if (!InheritedAnalysis[Index]) continue; - for (std::map::iterator + for (std::map::iterator I = InheritedAnalysis[Index]->begin(), E = InheritedAnalysis[Index]->end(); I != E; ) { std::map::iterator Info = I++; if (Info->second->getAsImmutablePass() == 0 && - std::find(PreservedSet.begin(), PreservedSet.end(), Info->first) == + std::find(PreservedSet.begin(), PreservedSet.end(), Info->first) == PreservedSet.end()) { // Remove this analysis if (PassDebugging >= Details) { @@ -780,7 +908,7 @@ void PMDataManager::removeDeadPasses(Pass *P, StringRef Msg, dbgs() << " Free these instances\n"; } - for (SmallVector::iterator I = DeadPasses.begin(), + for (SmallVectorImpl::iterator I = DeadPasses.begin(), E = DeadPasses.end(); I != E; ++I) freePass(*I, Msg, DBG_STR); } @@ -792,29 +920,29 @@ void PMDataManager::freePass(Pass *P, StringRef Msg, { // If the pass crashes releasing memory, remember this. PassManagerPrettyStackEntry X(P); - - Timer *T = StartPassTimer(P); + TimeRegion PassTimer(getPassTimer(P)); + P->releaseMemory(); - StopPassTimer(P, T); } - if (const PassInfo *PI = P->getPassInfo()) { + AnalysisID PI = P->getPassID(); + if (const PassInfo *PInf = PassRegistry::getPassRegistry()->getPassInfo(PI)) { // Remove the pass itself (if it is not already removed). AvailableAnalysis.erase(PI); // Remove all interfaces this pass implements, for which it is also // listed as the available implementation. - const std::vector &II = PI->getInterfacesImplemented(); + const std::vector &II = PInf->getInterfacesImplemented(); for (unsigned i = 0, e = II.size(); i != e; ++i) { std::map::iterator Pos = - AvailableAnalysis.find(II[i]); + AvailableAnalysis.find(II[i]->getTypeInfo()); if (Pos != AvailableAnalysis.end() && Pos->second == P) AvailableAnalysis.erase(Pos); } } } -/// Add pass P into the PassVector. Update +/// Add pass P into the PassVector. Update /// AvailableAnalysis appropriately if ProcessAnalysis is true. void PMDataManager::add(Pass *P, bool ProcessAnalysis) { // This manager is going to manage pass P. Set up analysis resolver @@ -839,9 +967,9 @@ void PMDataManager::add(Pass *P, bool ProcessAnalysis) { unsigned PDepth = this->getDepth(); - collectRequiredAnalysis(RequiredPasses, + collectRequiredAnalysis(RequiredPasses, ReqAnalysisNotAvailable, P); - for (SmallVector::iterator I = RequiredPasses.begin(), + for (SmallVectorImpl::iterator I = RequiredPasses.begin(), E = RequiredPasses.end(); I != E; ++I) { Pass *PRequired = *I; unsigned RDepth = 0; @@ -857,8 +985,8 @@ void PMDataManager::add(Pass *P, bool ProcessAnalysis) { TransferLastUses.push_back(PRequired); // Keep track of higher level analysis used by this manager. HigherLevelAnalysis.push_back(PRequired); - } else - llvm_unreachable("Unable to accomodate Required Pass"); + } else + llvm_unreachable("Unable to accommodate Required Pass"); } // Set P as P's last user until someone starts using P. @@ -874,11 +1002,12 @@ void PMDataManager::add(Pass *P, bool ProcessAnalysis) { TransferLastUses.clear(); } - // Now, take care of required analysises that are not available. - for (SmallVector::iterator - I = ReqAnalysisNotAvailable.begin(), + // Now, take care of required analyses that are not available. + for (SmallVectorImpl::iterator + I = ReqAnalysisNotAvailable.begin(), E = ReqAnalysisNotAvailable.end() ;I != E; ++I) { - Pass *AnalysisPass = (*I)->createPass(); + const PassInfo *PI = PassRegistry::getPassRegistry()->getPassInfo(*I); + Pass *AnalysisPass = PI->createPass(); this->addLowerLevelRequiredPass(P, AnalysisPass); } @@ -895,15 +1024,15 @@ void PMDataManager::add(Pass *P, bool ProcessAnalysis) { /// Populate RP with analysis pass that are required by /// pass P and are available. Populate RP_NotAvail with analysis /// pass that are required by pass P but are not available. -void PMDataManager::collectRequiredAnalysis(SmallVector&RP, - SmallVector &RP_NotAvail, +void PMDataManager::collectRequiredAnalysis(SmallVectorImpl &RP, + SmallVectorImpl &RP_NotAvail, Pass *P) { AnalysisUsage *AnUsage = TPM->findAnalysisUsage(P); const AnalysisUsage::VectorType &RequiredSet = AnUsage->getRequiredSet(); - for (AnalysisUsage::VectorType::const_iterator + for (AnalysisUsage::VectorType::const_iterator I = RequiredSet.begin(), E = RequiredSet.end(); I != E; ++I) { if (Pass *AnalysisPass = findAnalysisPass(*I, true)) - RP.push_back(AnalysisPass); + RP.push_back(AnalysisPass); else RP_NotAvail.push_back(*I); } @@ -912,7 +1041,7 @@ void PMDataManager::collectRequiredAnalysis(SmallVector&RP, for (AnalysisUsage::VectorType::const_iterator I = IDs.begin(), E = IDs.end(); I != E; ++I) { if (Pass *AnalysisPass = findAnalysisPass(*I, true)) - RP.push_back(AnalysisPass); + RP.push_back(AnalysisPass); else RP_NotAvail.push_back(*I); } @@ -953,7 +1082,7 @@ Pass *PMDataManager::findAnalysisPass(AnalysisID AID, bool SearchParent) { // Search Parents through TopLevelManager if (SearchParent) return TPM->findAnalysisPass(AID); - + return NULL; } @@ -967,8 +1096,8 @@ void PMDataManager::dumpLastUses(Pass *P, unsigned Offset) const{ return; TPM->collectLastUses(LUses, P); - - for (SmallVector::iterator I = LUses.begin(), + + for (SmallVectorImpl::iterator I = LUses.begin(), E = LUses.end(); I != E; ++I) { llvm::dbgs() << "--" << std::string(Offset*2, ' '); (*I)->dumpPassStructure(0); @@ -976,12 +1105,13 @@ void PMDataManager::dumpLastUses(Pass *P, unsigned Offset) const{ } void PMDataManager::dumpPassArguments() const { - for (SmallVector::const_iterator I = PassVector.begin(), + for (SmallVectorImpl::const_iterator I = PassVector.begin(), E = PassVector.end(); I != E; ++I) { if (PMDataManager *PMD = (*I)->getAsPMDataManager()) PMD->dumpPassArguments(); else - if (const PassInfo *PI = (*I)->getPassInfo()) + if (const PassInfo *PI = + PassRegistry::getPassRegistry()->getPassInfo((*I)->getPassID())) if (!PI->isAnalysisGroup()) dbgs() << " -" << PI->getPassArgument(); } @@ -1016,6 +1146,9 @@ void PMDataManager::dumpPassInfo(Pass *P, enum PassDebuggingString S1, case ON_MODULE_MSG: dbgs() << "' on Module '" << Msg << "'...\n"; break; + case ON_REGION_MSG: + dbgs() << "' on Region '" << Msg << "'...\n"; + break; case ON_LOOP_MSG: dbgs() << "' on Loop '" << Msg << "'...\n"; break; @@ -1030,7 +1163,7 @@ void PMDataManager::dumpPassInfo(Pass *P, enum PassDebuggingString S1, void PMDataManager::dumpRequiredSet(const Pass *P) const { if (PassDebugging < Details) return; - + AnalysisUsage analysisUsage; P->getAnalysisUsage(analysisUsage); dumpAnalysisUsage("Required", P, analysisUsage.getRequiredSet()); @@ -1039,7 +1172,7 @@ void PMDataManager::dumpRequiredSet(const Pass *P) const { void PMDataManager::dumpPreservedSet(const Pass *P) const { if (PassDebugging < Details) return; - + AnalysisUsage analysisUsage; P->getAnalysisUsage(analysisUsage); dumpAnalysisUsage("Preserved", P, analysisUsage.getPreservedSet()); @@ -1053,7 +1186,14 @@ void PMDataManager::dumpAnalysisUsage(StringRef Msg, const Pass *P, dbgs() << (void*)P << std::string(getDepth()*2+3, ' ') << Msg << " Analyses:"; for (unsigned i = 0; i != Set.size(); ++i) { if (i) dbgs() << ','; - dbgs() << ' ' << Set[i]->getPassName(); + const PassInfo *PInf = PassRegistry::getPassRegistry()->getPassInfo(Set[i]); + if (!PInf) { + // Some preserved passes, such as AliasAnalysis, may not be initialized by + // all drivers. + dbgs() << " Uninitialized Pass"; + continue; + } + dbgs() << ' ' << PInf->getPassName(); } dbgs() << '\n'; } @@ -1068,14 +1208,14 @@ void PMDataManager::addLowerLevelRequiredPass(Pass *P, Pass *RequiredPass) { TPM->dumpPasses(); } - // Module Level pass may required Function Level analysis info - // (e.g. dominator info). Pass manager uses on the fly function pass manager - // to provide this on demand. In that case, in Pass manager terminology, + // Module Level pass may required Function Level analysis info + // (e.g. dominator info). Pass manager uses on the fly function pass manager + // to provide this on demand. In that case, in Pass manager terminology, // module level pass is requiring lower level analysis info managed by // lower level pass manager. // When Pass manager is not able to order required analysis info, Pass manager - // checks whether any lower level manager will be able to provide this + // checks whether any lower level manager will be able to provide this // analysis info on demand or not. #ifndef NDEBUG dbgs() << "Unable to schedule '" << RequiredPass->getPassName(); @@ -1084,9 +1224,14 @@ void PMDataManager::addLowerLevelRequiredPass(Pass *P, Pass *RequiredPass) { llvm_unreachable("Unable to schedule pass"); } +Pass *PMDataManager::getOnTheFlyPass(Pass *P, AnalysisID PI, Function &F) { + assert(0 && "Unable to find on the fly pass"); + return NULL; +} + // Destructor PMDataManager::~PMDataManager() { - for (SmallVector::iterator I = PassVector.begin(), + for (SmallVectorImpl::iterator I = PassVector.begin(), E = PassVector.end(); I != E; ++I) delete *I; } @@ -1098,7 +1243,7 @@ Pass *AnalysisResolver::getAnalysisIfAvailable(AnalysisID ID, bool dir) const { return PM.findAnalysisPass(ID, dir); } -Pass *AnalysisResolver::findImplPass(Pass *P, const PassInfo *AnalysisPI, +Pass *AnalysisResolver::findImplPass(Pass *P, AnalysisID AnalysisPI, Function &F) { return PM.getOnTheFlyPass(P, AnalysisPI, F); } @@ -1106,8 +1251,8 @@ Pass *AnalysisResolver::findImplPass(Pass *P, const PassInfo *AnalysisPI, //===----------------------------------------------------------------------===// // BBPassManager implementation -/// Execute all of the passes scheduled for execution by invoking -/// runOnBasicBlock method. Keep track of whether any of the passes modifies +/// Execute all of the passes scheduled for execution by invoking +/// runOnBasicBlock method. Keep track of whether any of the passes modifies /// the function, and if so, return true. bool BBPassManager::runOnFunction(Function &F) { if (F.isDeclaration()) @@ -1128,14 +1273,13 @@ bool BBPassManager::runOnFunction(Function &F) { { // If the pass crashes, remember this. PassManagerPrettyStackEntry X(BP, *I); - - Timer *T = StartPassTimer(BP); + TimeRegion PassTimer(getPassTimer(BP)); + LocalChanged |= BP->runOnBasicBlock(*I); - StopPassTimer(BP, T); } Changed |= LocalChanged; - if (LocalChanged) + if (LocalChanged) dumpPassInfo(BP, MODIFICATION_MSG, ON_BASICBLOCK_MSG, I->getName()); dumpPreservedSet(BP); @@ -1208,13 +1352,31 @@ FunctionPassManager::~FunctionPassManager() { delete FPM; } +/// addImpl - Add a pass to the queue of passes to run, without +/// checking whether to add a printer pass. +void FunctionPassManager::addImpl(Pass *P) { + FPM->add(P); +} + /// add - Add a pass to the queue of passes to run. This passes /// ownership of the Pass to the PassManager. When the /// PassManager_X is destroyed, the pass will be destroyed as well, so /// there is no need to delete the pass. (TODO delete passes.) /// This implies that all passes MUST be allocated with 'new'. -void FunctionPassManager::add(Pass *P) { - FPM->add(P); +void FunctionPassManager::add(Pass *P) { + // If this is a not a function pass, don't add a printer for it. + const void *PassID = P->getPassID(); + if (P->getPassKind() == PT_Function) + if (ShouldPrintBeforePass(PassID)) + addImpl(P->createPrinterPass(dbgs(), std::string("*** IR Dump Before ") + + P->getPassName() + " ***")); + + addImpl(P); + + if (P->getPassKind() == PT_Function) + if (ShouldPrintAfterPass(PassID)) + addImpl(P->createPrinterPass(dbgs(), std::string("*** IR Dump After ") + + P->getPassName() + " ***")); } /// run - Execute all of the passes scheduled for execution. Keep @@ -1224,9 +1386,8 @@ void FunctionPassManager::add(Pass *P) { bool FunctionPassManager::run(Function &F) { if (F.isMaterializable()) { std::string errstr; - if (F.Materialize(&errstr)) { - llvm_report_error("Error reading bitcode file: " + errstr); - } + if (F.Materialize(&errstr)) + report_fatal_error("Error reading bitcode file: " + Twine(errstr)); } return FPM->run(F); } @@ -1295,6 +1456,7 @@ void FunctionPassManagerImpl::releaseMemoryOnTheFly() { bool FunctionPassManagerImpl::run(Function &F) { bool Changed = false; TimingInfo::createTheTimeInfo(); + createDebugInfoProbe(); initializeAllAnalysisInfo(); for (unsigned Index = 0; Index < getNumContainedManagers(); ++Index) @@ -1322,8 +1484,8 @@ void FPPassManager::dumpPassStructure(unsigned Offset) { } -/// Execute all of the passes scheduled for execution by invoking -/// runOnFunction method. Keep track of whether any of the passes modifies +/// Execute all of the passes scheduled for execution by invoking +/// runOnFunction method. Keep track of whether any of the passes modifies /// the function, and if so, return true. bool FPPassManager::runOnFunction(Function &F) { if (F.isDeclaration()) @@ -1342,14 +1504,16 @@ bool FPPassManager::runOnFunction(Function &F) { dumpRequiredSet(FP); initializeAnalysisImpl(FP); - + if (TheDebugProbe) + TheDebugProbe->initialize(FP, F); { PassManagerPrettyStackEntry X(FP, F); + TimeRegion PassTimer(getPassTimer(FP)); - Timer *T = StartPassTimer(FP); LocalChanged |= FP->runOnFunction(F); - StopPassTimer(FP, T); } + if (TheDebugProbe) + TheDebugProbe->finalize(FP, F); Changed |= LocalChanged; if (LocalChanged) @@ -1394,8 +1558,8 @@ bool FPPassManager::doFinalization(Module &M) { //===----------------------------------------------------------------------===// // MPPassManager implementation -/// Execute all of the passes scheduled for execution by invoking -/// runOnModule method. Keep track of whether any of the passes modifies +/// Execute all of the passes scheduled for execution by invoking +/// runOnModule method. Keep track of whether any of the passes modifies /// the module, and if so, return true. bool MPPassManager::runOnModule(Module &M) { @@ -1420,9 +1584,9 @@ MPPassManager::runOnModule(Module &M) { { PassManagerPrettyStackEntry X(MP, M); - Timer *T = StartPassTimer(MP); + TimeRegion PassTimer(getPassTimer(MP)); + LocalChanged |= MP->runOnModule(M); - StopPassTimer(MP, T); } Changed |= LocalChanged; @@ -1430,7 +1594,7 @@ MPPassManager::runOnModule(Module &M) { dumpPassInfo(MP, MODIFICATION_MSG, ON_MODULE_MSG, M.getModuleIdentifier()); dumpPreservedSet(MP); - + verifyPreservedAnalysis(MP); removeNotPreservedAnalysis(MP); recordAvailableAnalysis(MP); @@ -1456,7 +1620,7 @@ MPPassManager::runOnModule(Module &M) { void MPPassManager::addLowerLevelRequiredPass(Pass *P, Pass *RequiredPass) { assert(P->getPotentialPassManagerType() == PMT_ModulePassManager && "Unable to handle Pass that requires lower level Analysis pass"); - assert((P->getPotentialPassManagerType() < + assert((P->getPotentialPassManagerType() < RequiredPass->getPotentialPassManagerType()) && "Unable to handle Pass that requires lower level Analysis pass"); @@ -1471,18 +1635,18 @@ void MPPassManager::addLowerLevelRequiredPass(Pass *P, Pass *RequiredPass) { FPP->add(RequiredPass); // Register P as the last user of RequiredPass. - SmallVector LU; + SmallVector LU; LU.push_back(RequiredPass); FPP->setLastUser(LU, P); } -/// Return function pass corresponding to PassInfo PI, that is +/// Return function pass corresponding to PassInfo PI, that is /// required by module pass MP. Instantiate analysis pass, by using /// its runOnFunction() for function F. -Pass* MPPassManager::getOnTheFlyPass(Pass *MP, const PassInfo *PI, Function &F){ +Pass* MPPassManager::getOnTheFlyPass(Pass *MP, AnalysisID PI, Function &F){ FunctionPassManagerImpl *FPP = OnTheFlyManagers[MP]; assert(FPP && "Unable to find on the fly pass"); - + FPP->releaseMemoryOnTheFly(); FPP->run(F); return ((PMTopLevelManager*)FPP)->findAnalysisPass(PI); @@ -1497,6 +1661,7 @@ Pass* MPPassManager::getOnTheFlyPass(Pass *MP, const PassInfo *PI, Function &F){ bool PassManagerImpl::run(Module &M) { bool Changed = false; TimingInfo::createTheTimeInfo(); + createDebugInfoProbe(); dumpArguments(); dumpPasses(); @@ -1521,12 +1686,27 @@ PassManager::~PassManager() { delete PM; } +/// addImpl - Add a pass to the queue of passes to run, without +/// checking whether to add a printer pass. +void PassManager::addImpl(Pass *P) { + PM->add(P); +} + /// add - Add a pass to the queue of passes to run. This passes ownership of /// the Pass to the PassManager. When the PassManager is destroyed, the pass /// will be destroyed as well, so there is no need to delete the pass. This /// implies that all passes MUST be allocated with 'new'. void PassManager::add(Pass *P) { - PM->add(P); + const void* PassID = P->getPassID(); + if (ShouldPrintBeforePass(PassID)) + addImpl(P->createPrinterPass(dbgs(), std::string("*** IR Dump Before ") + + P->getPassName() + " ***")); + + addImpl(P); + + if (ShouldPrintAfterPass(PassID)) + addImpl(P->createPrinterPass(dbgs(), std::string("*** IR Dump After ") + + P->getPassName() + " ***")); } /// run - Execute all of the passes scheduled for execution. Keep track of @@ -1559,17 +1739,12 @@ void TimingInfo::createTheTimeInfo() { } /// If TimingInfo is enabled then start pass timer. -Timer *llvm::StartPassTimer(Pass *P) { - if (TheTimeInfo) - return TheTimeInfo->passStarted(P); +Timer *llvm::getPassTimer(Pass *P) { + if (TheTimeInfo) + return TheTimeInfo->getPassTimer(P); return 0; } -/// If TimingInfo is enabled then stop pass timer. -void llvm::StopPassTimer(Pass *P, Timer *T) { - if (T) T->stopTimer(); -} - //===----------------------------------------------------------------------===// // PMStack implementation // @@ -1599,8 +1774,8 @@ void PMStack::push(PMDataManager *PM) { } // Dump content of the pass manager stack. -void PMStack::dump() { - for (std::deque::iterator I = S.begin(), +void PMStack::dump() const { + for (std::vector::const_iterator I = S.begin(), E = S.end(); I != E; ++I) printf("%s ", (*I)->getAsPass()->getPassName()); @@ -1609,11 +1784,11 @@ void PMStack::dump() { } /// Find appropriate Module Pass Manager in the PM Stack and -/// add self into that manager. -void ModulePass::assignPassManager(PMStack &PMS, +/// add self into that manager. +void ModulePass::assignPassManager(PMStack &PMS, PassManagerType PreferredType) { // Find Module Pass Manager - while(!PMS.empty()) { + while (!PMS.empty()) { PassManagerType TopPMType = PMS.top()->getPassManagerType(); if (TopPMType == PreferredType) break; // We found desired pass manager @@ -1627,7 +1802,7 @@ void ModulePass::assignPassManager(PMStack &PMS, } /// Find appropriate Function Pass Manager or Call Graph Pass Manager -/// in the PM Stack and add self into that manager. +/// in the PM Stack and add self into that manager. void FunctionPass::assignPassManager(PMStack &PMS, PassManagerType PreferredType) { @@ -1636,7 +1811,7 @@ void FunctionPass::assignPassManager(PMStack &PMS, if (PMS.top()->getPassManagerType() > PMT_FunctionPassManager) PMS.pop(); else - break; + break; } // Create new Function Pass Manager if needed. @@ -1668,14 +1843,14 @@ void FunctionPass::assignPassManager(PMStack &PMS, } /// Find appropriate Basic Pass Manager or Call Graph Pass Manager -/// in the PM Stack and add self into that manager. +/// in the PM Stack and add self into that manager. void BasicBlockPass::assignPassManager(PMStack &PMS, PassManagerType PreferredType) { BBPassManager *BBP; // Basic Pass Manager is a leaf pass manager. It does not handle // any other pass manager. - if (!PMS.empty() && + if (!PMS.empty() && PMS.top()->getPassManagerType() == PMT_BasicBlockPassManager) { BBP = (BBPassManager *)PMS.top(); } else { @@ -1694,7 +1869,7 @@ void BasicBlockPass::assignPassManager(PMStack &PMS, // [3] Assign manager to manage this new manager. This may create // and push new managers into PMS - BBP->assignPassManager(PMS); + BBP->assignPassManager(PMS, PreferredType); // [4] Push new manager into PMS PMS.push(BBP); @@ -1705,38 +1880,3 @@ void BasicBlockPass::assignPassManager(PMStack &PMS, } PassManagerBase::~PassManagerBase() {} - -/*===-- C Bindings --------------------------------------------------------===*/ - -LLVMPassManagerRef LLVMCreatePassManager() { - return wrap(new PassManager()); -} - -LLVMPassManagerRef LLVMCreateFunctionPassManagerForModule(LLVMModuleRef M) { - return wrap(new FunctionPassManager(unwrap(M))); -} - -LLVMPassManagerRef LLVMCreateFunctionPassManager(LLVMModuleProviderRef P) { - return LLVMCreateFunctionPassManagerForModule( - reinterpret_cast(P)); -} - -LLVMBool LLVMRunPassManager(LLVMPassManagerRef PM, LLVMModuleRef M) { - return unwrap(PM)->run(*unwrap(M)); -} - -LLVMBool LLVMInitializeFunctionPassManager(LLVMPassManagerRef FPM) { - return unwrap(FPM)->doInitialization(); -} - -LLVMBool LLVMRunFunctionPassManager(LLVMPassManagerRef FPM, LLVMValueRef F) { - return unwrap(FPM)->run(*unwrap(F)); -} - -LLVMBool LLVMFinalizeFunctionPassManager(LLVMPassManagerRef FPM) { - return unwrap(FPM)->doFinalization(); -} - -void LLVMDisposePassManager(LLVMPassManagerRef PM) { - delete unwrap(PM); -}