//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
//
//===----------------------------------------------------------------------===//
+#include "llvm/Pass.h"
#include "llvm/PassManager.h"
-#include "PassManagerT.h" // PassManagerT implementation
+#include "llvm/PassRegistry.h"
#include "llvm/Module.h"
-#include "llvm/ModuleProvider.h"
#include "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/StringMap.h"
+#include "llvm/Assembly/PrintModulePass.h"
+#include "llvm/Support/Debug.h"
#include "llvm/Support/ManagedStatic.h"
-#include "llvm/Support/TypeInfo.h"
+#include "llvm/Support/PassNameParser.h"
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/System/Atomic.h"
+#include "llvm/System/Mutex.h"
+#include "llvm/System/Threading.h"
+#include <algorithm>
+#include <map>
#include <set>
using namespace llvm;
//===----------------------------------------------------------------------===//
-// AnalysisResolver Class Implementation
+// Pass Implementation
//
-AnalysisResolver::~AnalysisResolver() {
+Pass::Pass(PassKind K, intptr_t pid) : Resolver(0), PassID(pid), Kind(K) {
+ assert(pid && "pid cannot be 0");
}
-void AnalysisResolver::setAnalysisResolver(Pass *P, AnalysisResolver *AR) {
- assert(P->Resolver == 0 && "Pass already in a PassManager!");
- P->Resolver = AR;
+
+Pass::Pass(PassKind K, const void *pid)
+ : Resolver(0), PassID((intptr_t)pid), Kind(K) {
+ assert(pid && "pid cannot be 0");
}
-//===----------------------------------------------------------------------===//
-// PassManager implementation - The PassManager class is a simple Pimpl class
-// that wraps the PassManagerT template.
-//
-PassManager::PassManager() : PM(new ModulePassManager()) {}
-PassManager::~PassManager() { delete PM; }
-void PassManager::add(Pass *P) {
- ModulePass *MP = dynamic_cast<ModulePass*>(P);
- assert(MP && "Not a modulepass?");
- PM->add(MP);
+// Force out-of-line virtual method.
+Pass::~Pass() {
+ delete Resolver;
}
-bool PassManager::run(Module &M) { return PM->runOnModule(M); }
-//===----------------------------------------------------------------------===//
-// FunctionPassManager implementation - The FunctionPassManager class
-// is a simple Pimpl class that wraps the PassManagerT template. It
-// is like PassManager, but only deals in FunctionPasses.
-//
-FunctionPassManager::FunctionPassManager(ModuleProvider *P) :
- PM(new FunctionPassManagerT()), MP(P) {}
-FunctionPassManager::~FunctionPassManager() { delete PM; }
-void FunctionPassManager::add(FunctionPass *P) { PM->add(P); }
-void FunctionPassManager::add(ImmutablePass *IP) { PM->add(IP); }
+// Force out-of-line virtual method.
+ModulePass::~ModulePass() { }
-/// doInitialization - Run all of the initializers for the function passes.
-///
-bool FunctionPassManager::doInitialization() {
- return PM->doInitialization(*MP->getModule());
+Pass *ModulePass::createPrinterPass(raw_ostream &O,
+ const std::string &Banner) const {
+ return createPrintModulePass(&O, false, Banner);
}
-bool FunctionPassManager::run(Function &F) {
- std::string errstr;
- if (MP->materializeFunction(&F, &errstr)) {
- cerr << "Error reading bytecode file: " << errstr << "\n";
- abort();
- }
- return PM->runOnFunction(F);
+PassManagerType ModulePass::getPotentialPassManagerType() const {
+ return PMT_ModulePassManager;
}
-/// doFinalization - Run all of the initializers for the function passes.
-///
-bool FunctionPassManager::doFinalization() {
- return PM->doFinalization(*MP->getModule());
+bool Pass::mustPreserveAnalysisID(const PassInfo *AnalysisID) const {
+ return Resolver->getAnalysisIfAvailable(AnalysisID, true) != 0;
}
+// dumpPassStructure - Implement the -debug-passes=Structure option
+void Pass::dumpPassStructure(unsigned Offset) {
+ dbgs().indent(Offset*2) << getPassName() << "\n";
+}
-//===----------------------------------------------------------------------===//
-// TimingInfo Class - This class is used to calculate information about the
-// amount of time each pass takes to execute. This only happens with
-// -time-passes is enabled on the command line.
-//
-bool llvm::TimePassesIsEnabled = false;
-static cl::opt<bool,true>
-EnableTiming("time-passes", cl::location(TimePassesIsEnabled),
- cl::desc("Time each pass, printing elapsed time for each on exit"));
-
-// createTheTimeInfo - This method either initializes the TheTimeInfo pointer to
-// a non null value (if the -time-passes option is enabled) or it leaves it
-// null. It may be called multiple times.
-void TimingInfo::createTheTimeInfo() {
- if (!TimePassesIsEnabled || TheTimeInfo) return;
-
- // Constructed the first time this is called, iff -time-passes is enabled.
- // This guarantees that the object will be constructed before static globals,
- // thus it will be destroyed before them.
- static TimingInfo TTI;
- TheTimeInfo = &TTI;
-}
-
-void PMDebug::PrintArgumentInformation(const Pass *P) {
- // Print out passes in pass manager...
- if (const AnalysisResolver *PM = dynamic_cast<const AnalysisResolver*>(P)) {
- for (unsigned i = 0, e = PM->getNumContainedPasses(); i != e; ++i)
- PrintArgumentInformation(PM->getContainedPass(i));
-
- } else { // Normal pass. Print argument information...
- // Print out arguments for registered passes that are _optimizations_
- if (const PassInfo *PI = P->getPassInfo())
- if (!PI->isAnalysisGroup())
- cerr << " -" << PI->getPassArgument();
- }
+/// getPassName - Return a nice clean name for a pass. This usually
+/// implemented in terms of the name that is registered by one of the
+/// Registration templates, but can be overloaded directly.
+///
+const char *Pass::getPassName() const {
+ if (const PassInfo *PI = getPassInfo())
+ return PI->getPassName();
+ return "Unnamed pass: implement Pass::getPassName()";
}
-void PMDebug::PrintPassInformation(unsigned Depth, const char *Action,
- Pass *P, Module *M) {
- if (PassDebugging >= Executions) {
- cerr << (void*)P << std::string(Depth*2+1, ' ') << Action << " '"
- << P->getPassName();
- if (M) cerr << "' on Module '" << M->getModuleIdentifier() << "'\n";
- cerr << "'...\n";
- }
+void Pass::preparePassManager(PMStack &) {
+ // By default, don't do anything.
}
-void PMDebug::PrintPassInformation(unsigned Depth, const char *Action,
- Pass *P, Function *F) {
- if (PassDebugging >= Executions) {
- cerr << (void*)P << std::string(Depth*2+1, ' ') << Action << " '"
- << P->getPassName();
- if (F) cerr << "' on Function '" << F->getName();
- cerr << "'...\n";
- }
+PassManagerType Pass::getPotentialPassManagerType() const {
+ // Default implementation.
+ return PMT_Unknown;
}
-void PMDebug::PrintPassInformation(unsigned Depth, const char *Action,
- Pass *P, BasicBlock *BB) {
- if (PassDebugging >= Executions) {
- cerr << (void*)P << std::string(Depth*2+1, ' ') << Action << " '"
- << P->getPassName();
- if (BB) cerr << "' on BasicBlock '" << BB->getName();
- cerr << "'...\n";
- }
+void Pass::getAnalysisUsage(AnalysisUsage &) const {
+ // By default, no analysis results are used, all are invalidated.
}
-void PMDebug::PrintAnalysisSetInfo(unsigned Depth, const char *Msg,
- Pass *P, const std::vector<AnalysisID> &Set){
- if (PassDebugging >= Details && !Set.empty()) {
- cerr << (void*)P << std::string(Depth*2+3, ' ') << Msg << " Analyses:";
- for (unsigned i = 0; i != Set.size(); ++i) {
- if (i) cerr << ",";
- cerr << " " << Set[i]->getPassName();
- }
- cerr << "\n";
- }
+void Pass::releaseMemory() {
+ // By default, don't do anything.
}
-//===----------------------------------------------------------------------===//
-// Pass Implementation
-//
+void Pass::verifyAnalysis() const {
+ // By default, don't do anything.
+}
-void ModulePass::addToPassManager(ModulePassManager *PM, AnalysisUsage &AU) {
- PM->addPass(this, AU);
+void *Pass::getAdjustedAnalysisPointer(const PassInfo *) {
+ return this;
}
-bool Pass::mustPreserveAnalysisID(const PassInfo *AnalysisID) const {
- return Resolver->getAnalysisToUpdate(AnalysisID) != 0;
+ImmutablePass *Pass::getAsImmutablePass() {
+ return 0;
}
-// dumpPassStructure - Implement the -debug-passes=Structure option
-void Pass::dumpPassStructure(unsigned Offset) {
- cerr << std::string(Offset*2, ' ') << getPassName() << "\n";
+PMDataManager *Pass::getAsPMDataManager() {
+ return 0;
}
-// getPassName - Use C++ RTTI to get a SOMEWHAT intelligible name for the pass.
-//
-const char *Pass::getPassName() const {
- if (const PassInfo *PI = getPassInfo())
- return PI->getPassName();
- return typeid(*this).name();
+void Pass::setResolver(AnalysisResolver *AR) {
+ assert(!Resolver && "Resolver is already set");
+ Resolver = AR;
}
// print - Print out the internal state of the pass. This is called by Analyze
// to print out the contents of an analysis. Otherwise it is not necessary to
// implement this method.
//
-void Pass::print(std::ostream &O,const Module*) const {
+void Pass::print(raw_ostream &O,const Module*) const {
O << "Pass::print not implemented for pass: '" << getPassName() << "'!\n";
}
// dump - call print(cerr);
void Pass::dump() const {
- print(*cerr.stream(), 0);
+ print(dbgs(), 0);
}
//===----------------------------------------------------------------------===//
// ImmutablePass Implementation
//
-void ImmutablePass::addToPassManager(ModulePassManager *PM,
- AnalysisUsage &AU) {
- PM->addPass(this, AU);
-}
+// Force out-of-line virtual method.
+ImmutablePass::~ImmutablePass() { }
+void ImmutablePass::initializePass() {
+ // By default, don't do anything.
+}
//===----------------------------------------------------------------------===//
// FunctionPass Implementation
//
+Pass *FunctionPass::createPrinterPass(raw_ostream &O,
+ const std::string &Banner) const {
+ return createPrintFunctionPass(Banner, &O);
+}
+
// run - On a module, we run this pass by initializing, runOnFunction'ing once
// for every function in the module, then by finalizing.
//
bool Changed = doInitialization(M);
for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I)
- if (!I->isExternal()) // Passes are not run on external functions!
+ if (!I->isDeclaration()) // Passes are not run on external functions!
Changed |= runOnFunction(*I);
return Changed | doFinalization(M);
// run - On a function, we simply initialize, run the function, then finalize.
//
bool FunctionPass::run(Function &F) {
- if (F.isExternal()) return false;// Passes are not run on external functions!
+ // Passes are not run on external functions!
+ if (F.isDeclaration()) return false;
bool Changed = doInitialization(*F.getParent());
Changed |= runOnFunction(F);
return Changed | doFinalization(*F.getParent());
}
-void FunctionPass::addToPassManager(ModulePassManager *PM,
- AnalysisUsage &AU) {
- PM->addPass(this, AU);
+bool FunctionPass::doInitialization(Module &) {
+ // By default, don't do anything.
+ return false;
+}
+
+bool FunctionPass::doFinalization(Module &) {
+ // By default, don't do anything.
+ return false;
}
-void FunctionPass::addToPassManager(FunctionPassManagerT *PM,
- AnalysisUsage &AU) {
- PM->addPass(this, AU);
+PassManagerType FunctionPass::getPotentialPassManagerType() const {
+ return PMT_FunctionPassManager;
}
//===----------------------------------------------------------------------===//
// BasicBlockPass Implementation
//
+Pass *BasicBlockPass::createPrinterPass(raw_ostream &O,
+ const std::string &Banner) const {
+
+ llvm_unreachable("BasicBlockPass printing unsupported.");
+ return 0;
+}
+
// To run this pass on a function, we simply call runOnBasicBlock once for each
// function.
//
return Changed | doFinalization(F);
}
-// To run directly on the basic block, we initialize, runOnBasicBlock, then
-// finalize.
-//
-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;
+bool BasicBlockPass::doInitialization(Module &) {
+ // By default, don't do anything.
+ return false;
+}
+
+bool BasicBlockPass::doInitialization(Function &) {
+ // By default, don't do anything.
+ return false;
}
-void BasicBlockPass::addToPassManager(FunctionPassManagerT *PM,
- AnalysisUsage &AU) {
- PM->addPass(this, AU);
+bool BasicBlockPass::doFinalization(Function &) {
+ // By default, don't do anything.
+ return false;
}
-void BasicBlockPass::addToPassManager(BasicBlockPassManager *PM,
- AnalysisUsage &AU) {
- PM->addPass(this, AU);
+bool BasicBlockPass::doFinalization(Module &) {
+ // By default, don't do anything.
+ return false;
}
+PassManagerType BasicBlockPass::getPotentialPassManagerType() const {
+ return PMT_BasicBlockPassManager;
+}
//===----------------------------------------------------------------------===//
// 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;
+static sys::SmartMutex<true> ListenersLock;
// getPassInfo - Return the PassInfo data structure that corresponds to this
// pass...
const PassInfo *Pass::getPassInfo() const {
- if (PassInfoCache) return PassInfoCache;
- return lookupPassInfo(typeid(*this));
+ return lookupPassInfo(PassID);
}
-const PassInfo *Pass::lookupPassInfo(const std::type_info &TI) {
- return PassRegistrarObj->GetPassInfo(TI);
+const PassInfo *Pass::lookupPassInfo(intptr_t TI) {
+ return PassRegistry::getPassRegistry()->getPassInfo(TI);
}
-void RegisterPassBase::registerPass() {
- PassRegistrarObj->RegisterPass(PIObj);
+const PassInfo *Pass::lookupPassInfo(StringRef Arg) {
+ return PassRegistry::getPassRegistry()->getPassInfo(Arg);
+}
+
+void PassInfo::registerPass() {
+ PassRegistry::getPassRegistry()->registerPass(*this);
// Notify any listeners.
+ sys::SmartScopedLock<true> Lock(ListenersLock);
if (Listeners)
for (std::vector<PassRegistrationListener*>::iterator
I = Listeners->begin(), E = Listeners->end(); I != E; ++I)
- (*I)->passRegistered(&PIObj);
+ (*I)->passRegistered(this);
}
-void RegisterPassBase::unregisterPass() {
- PassRegistrarObj->UnregisterPass(PIObj);
+void PassInfo::unregisterPass() {
+ PassRegistry::getPassRegistry()->unregisterPass(*this);
+}
+
+Pass *PassInfo::createPass() const {
+ assert((!isAnalysisGroup() || NormalCtor) &&
+ "No default implementation found for analysis group!");
+ assert(NormalCtor &&
+ "Cannot call createPass on PassInfo without default ctor!");
+ return NormalCtor();
}
//===----------------------------------------------------------------------===//
// RegisterAGBase implementation
//
-RegisterAGBase::RegisterAGBase(const std::type_info &Interface,
- const std::type_info *Pass, bool isDefault)
- : RegisterPassBase(Interface),
- ImplementationInfo(0), isDefaultImplementation(isDefault) {
+RegisterAGBase::RegisterAGBase(const char *Name, intptr_t InterfaceID,
+ intptr_t PassID, bool isDefault)
+ : PassInfo(Name, InterfaceID) {
- InterfaceInfo = const_cast<PassInfo*>(Pass::lookupPassInfo(Interface));
+ PassInfo *InterfaceInfo =
+ const_cast<PassInfo*>(Pass::lookupPassInfo(InterfaceID));
if (InterfaceInfo == 0) {
// First reference to Interface, register it now.
registerPass();
- InterfaceInfo = &PIObj;
+ InterfaceInfo = this;
}
- assert(PIObj.isAnalysisGroup() &&
+ assert(isAnalysisGroup() &&
"Trying to join an analysis group that is a normal pass!");
- if (Pass) {
- ImplementationInfo = Pass::lookupPassInfo(*Pass);
+ if (PassID) {
+ const PassInfo *ImplementationInfo = Pass::lookupPassInfo(PassID);
assert(ImplementationInfo &&
"Must register pass before adding to AnalysisGroup!");
PassInfo *IIPI = const_cast<PassInfo*>(ImplementationInfo);
IIPI->addInterfaceImplemented(InterfaceInfo);
- PassRegistrarObj->RegisterAnalysisGroup(InterfaceInfo, IIPI, isDefault);
+ PassRegistry::getPassRegistry()->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() {
+ sys::SmartScopedLock<true> Lock(ListenersLock);
if (!Listeners) Listeners = new std::vector<PassRegistrationListener*>();
Listeners->push_back(this);
}
// dtor - Remove object from list of listeners...
PassRegistrationListener::~PassRegistrationListener() {
+ sys::SmartScopedLock<true> Lock(ListenersLock);
std::vector<PassRegistrationListener*>::iterator I =
std::find(Listeners->begin(), Listeners->end(), this);
assert(Listeners && I != Listeners->end() &&
// passEnumerate callback on each PassInfo object.
//
void PassRegistrationListener::enumeratePasses() {
- PassRegistrarObj->EnumerateWith(this);
+ PassRegistry::getPassRegistry()->enumerateWith(this);
}
+PassNameParser::~PassNameParser() {}
+
//===----------------------------------------------------------------------===//
// AnalysisUsage Class Implementation
//
namespace {
struct GetCFGOnlyPasses : public PassRegistrationListener {
- std::vector<AnalysisID> &CFGOnlyList;
- GetCFGOnlyPasses(std::vector<AnalysisID> &L) : CFGOnlyList(L) {}
+ typedef AnalysisUsage::VectorType VectorType;
+ VectorType &CFGOnlyList;
+ GetCFGOnlyPasses(VectorType &L) : CFGOnlyList(L) {}
void passEnumerate(const PassInfo *P) {
if (P->isCFGOnlyPass())
GetCFGOnlyPasses(Preserved).enumeratePasses();
}
+AnalysisUsage &AnalysisUsage::addRequiredID(AnalysisID ID) {
+ assert(ID && "Pass class not registered!");
+ Required.push_back(ID);
+ return *this;
+}
+AnalysisUsage &AnalysisUsage::addRequiredTransitiveID(AnalysisID ID) {
+ assert(ID && "Pass class not registered!");
+ Required.push_back(ID);
+ RequiredTransitive.push_back(ID);
+ return *this;
+}
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