//===----------------------------------------------------------------------===//
#include "llvm/Pass.h"
-#include "llvm/PassManager.h"
-#include "llvm/Module.h"
-#include "llvm/ModuleProvider.h"
-#include "llvm/ADT/STLExtras.h"
-#include "llvm/ADT/StringMap.h"
-#include "llvm/Support/ManagedStatic.h"
+#include "llvm/Assembly/PrintModulePass.h"
+#include "llvm/PassRegistry.h"
+#include "llvm/Support/Debug.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;
//===----------------------------------------------------------------------===//
//
// Force out-of-line virtual method.
-Pass::~Pass() {
- delete Resolver;
+Pass::~Pass() {
+ delete Resolver;
}
// Force out-of-line virtual method.
ModulePass::~ModulePass() { }
-bool Pass::mustPreserveAnalysisID(const PassInfo *AnalysisID) const {
- return Resolver->getAnalysisIfAvailable(AnalysisID, true) != 0;
+Pass *ModulePass::createPrinterPass(raw_ostream &O,
+ const std::string &Banner) const {
+ return createPrintModulePass(&O, false, Banner);
}
-// dumpPassStructure - Implement the -debug-passes=Structure option
+PassManagerType ModulePass::getPotentialPassManagerType() const {
+ return PMT_ModulePassManager;
+}
+
+bool Pass::mustPreserveAnalysisID(char &AID) const {
+ return Resolver->getAnalysisIfAvailable(&AID, true) != 0;
+}
+
+// dumpPassStructure - Implement the -debug-pass=Structure option
void Pass::dumpPassStructure(unsigned Offset) {
- errs().indent(Offset*2) << getPassName() << "\n";
+ dbgs().indent(Offset*2) << getPassName() << "\n";
}
/// getPassName - Return a nice clean name for a pass. This usually
/// Registration templates, but can be overloaded directly.
///
const char *Pass::getPassName() const {
- if (const PassInfo *PI = getPassInfo())
+ AnalysisID AID = getPassID();
+ const PassInfo *PI = PassRegistry::getPassRegistry()->getPassInfo(AID);
+ if (PI)
return PI->getPassName();
return "Unnamed pass: implement Pass::getPassName()";
}
+void Pass::preparePassManager(PMStack &) {
+ // By default, don't do anything.
+}
+
+PassManagerType Pass::getPotentialPassManagerType() const {
+ // Default implementation.
+ return PMT_Unknown;
+}
+
+void Pass::getAnalysisUsage(AnalysisUsage &) const {
+ // By default, no analysis results are used, all are invalidated.
+}
+
+void Pass::releaseMemory() {
+ // By default, don't do anything.
+}
+
+void Pass::verifyAnalysis() const {
+ // By default, don't do anything.
+}
+
+void *Pass::getAdjustedAnalysisPointer(AnalysisID AID) {
+ return this;
+}
+
+ImmutablePass *Pass::getAsImmutablePass() {
+ return 0;
+}
+
+PMDataManager *Pass::getAsPMDataManager() {
+ return 0;
+}
+
+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.
// dump - call print(cerr);
void Pass::dump() const {
- print(errs(), 0);
+ print(dbgs(), 0);
}
//===----------------------------------------------------------------------===//
// Force out-of-line virtual method.
ImmutablePass::~ImmutablePass() { }
+void ImmutablePass::initializePass() {
+ // By default, don't do anything.
+}
+
//===----------------------------------------------------------------------===//
// FunctionPass Implementation
//
-// run - On a module, we run this pass by initializing, runOnFunction'ing once
-// for every function in the module, then by finalizing.
-//
-bool FunctionPass::runOnModule(Module &M) {
- bool Changed = doInitialization(M);
-
- for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I)
- if (!I->isDeclaration()) // Passes are not run on external functions!
- Changed |= runOnFunction(*I);
-
- return Changed | doFinalization(M);
+Pass *FunctionPass::createPrinterPass(raw_ostream &O,
+ const std::string &Banner) const {
+ return createPrintFunctionPass(Banner, &O);
}
-// run - On a function, we simply initialize, run the function, then finalize.
-//
-bool FunctionPass::run(Function &F) {
- // 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());
+PassManagerType FunctionPass::getPotentialPassManagerType() const {
+ return PMT_FunctionPassManager;
}
//===----------------------------------------------------------------------===//
// BasicBlockPass Implementation
//
-// To run this pass on a function, we simply call runOnBasicBlock once for each
-// function.
-//
-bool BasicBlockPass::runOnFunction(Function &F) {
- bool Changed = doInitialization(F);
- for (Function::iterator I = F.begin(), E = F.end(); I != E; ++I)
- Changed |= runOnBasicBlock(*I);
- return Changed | doFinalization(F);
+Pass *BasicBlockPass::createPrinterPass(raw_ostream &O,
+ const std::string &Banner) const {
+
+ llvm_unreachable("BasicBlockPass printing unsupported.");
}
-//===----------------------------------------------------------------------===//
-// Pass Registration mechanism
-//
-namespace {
-class PassRegistrar {
- /// PassInfoMap - Keep track of the passinfo object for each registered llvm
- /// pass.
- typedef std::map<intptr_t, const PassInfo*> MapType;
- MapType PassInfoMap;
-
- typedef StringMap<const PassInfo*> StringMapType;
- StringMapType PassInfoStringMap;
-
- /// AnalysisGroupInfo - Keep track of information for each analysis group.
- struct AnalysisGroupInfo {
- std::set<const PassInfo *> Implementations;
- };
-
- /// AnalysisGroupInfoMap - Information for each analysis group.
- std::map<const PassInfo *, AnalysisGroupInfo> AnalysisGroupInfoMap;
-
-public:
-
- const PassInfo *GetPassInfo(intptr_t TI) const {
- MapType::const_iterator I = PassInfoMap.find(TI);
- return I != PassInfoMap.end() ? I->second : 0;
- }
-
- const PassInfo *GetPassInfo(StringRef Arg) const {
- StringMapType::const_iterator I = PassInfoStringMap.find(Arg);
- return I != PassInfoStringMap.end() ? I->second : 0;
- }
-
- void RegisterPass(const PassInfo &PI) {
- bool Inserted =
- PassInfoMap.insert(std::make_pair(PI.getTypeInfo(),&PI)).second;
- assert(Inserted && "Pass registered multiple times!"); Inserted=Inserted;
- PassInfoStringMap[PI.getPassArgument()] = &PI;
- }
-
- void UnregisterPass(const PassInfo &PI) {
- MapType::iterator I = PassInfoMap.find(PI.getTypeInfo());
- assert(I != PassInfoMap.end() && "Pass registered but not in map!");
-
- // Remove pass from the map.
- PassInfoMap.erase(I);
- PassInfoStringMap.erase(PI.getPassArgument());
- }
-
- void EnumerateWith(PassRegistrationListener *L) {
- for (MapType::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(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");
- InterfaceInfo->setNormalCtor(ImplementationInfo->getNormalCtor());
- }
- }
-};
-}
-
-static std::vector<PassRegistrationListener*> *Listeners = 0;
-static sys::SmartMutex<true> ListenersLock;
-
-// FIXME: This should use ManagedStatic to manage the pass registrar.
-// Unfortunately, we can't do this, because passes are registered with static
-// ctors, and having llvm_shutdown clear this map prevents successful
-// ressurection after llvm_shutdown is run.
-static PassRegistrar *getPassRegistrar() {
- static PassRegistrar *PassRegistrarObj = 0;
-
- // Use double-checked locking to safely initialize the registrar when
- // we're running in multithreaded mode.
- PassRegistrar* tmp = PassRegistrarObj;
- if (llvm_is_multithreaded()) {
- sys::MemoryFence();
- if (!tmp) {
- llvm_acquire_global_lock();
- tmp = PassRegistrarObj;
- if (!tmp) {
- tmp = new PassRegistrar();
- sys::MemoryFence();
- PassRegistrarObj = tmp;
- }
- llvm_release_global_lock();
- }
- } else if (!tmp) {
- PassRegistrarObj = new PassRegistrar();
- }
-
- return PassRegistrarObj;
+bool BasicBlockPass::doInitialization(Function &) {
+ // By default, don't do anything.
+ return false;
}
-// getPassInfo - Return the PassInfo data structure that corresponds to this
-// pass...
-const PassInfo *Pass::getPassInfo() const {
- return lookupPassInfo(PassID);
+bool BasicBlockPass::doFinalization(Function &) {
+ // By default, don't do anything.
+ return false;
}
-const PassInfo *Pass::lookupPassInfo(intptr_t TI) {
- return getPassRegistrar()->GetPassInfo(TI);
+PassManagerType BasicBlockPass::getPotentialPassManagerType() const {
+ return PMT_BasicBlockPassManager;
}
-const PassInfo *Pass::lookupPassInfo(StringRef Arg) {
- return getPassRegistrar()->GetPassInfo(Arg);
+const PassInfo *Pass::lookupPassInfo(const void *TI) {
+ return PassRegistry::getPassRegistry()->getPassInfo(TI);
}
-void PassInfo::registerPass() {
- getPassRegistrar()->RegisterPass(*this);
+const PassInfo *Pass::lookupPassInfo(StringRef Arg) {
+ return PassRegistry::getPassRegistry()->getPassInfo(Arg);
+}
- // 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(this);
+Pass *Pass::createPass(AnalysisID ID) {
+ const PassInfo *PI = PassRegistry::getPassRegistry()->getPassInfo(ID);
+ if (!PI)
+ return NULL;
+ return PI->createPass();
}
-void PassInfo::unregisterPass() {
- getPassRegistrar()->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 char *Name, intptr_t InterfaceID,
- intptr_t PassID, bool isDefault)
- : PassInfo(Name, InterfaceID) {
-
- PassInfo *InterfaceInfo =
- const_cast<PassInfo*>(Pass::lookupPassInfo(InterfaceID));
- if (InterfaceInfo == 0) {
- // First reference to Interface, register it now.
- registerPass();
- InterfaceInfo = this;
- }
- assert(isAnalysisGroup() &&
- "Trying to join an analysis group that is a normal pass!");
-
- if (PassID) {
- const PassInfo *ImplementationInfo = Pass::lookupPassInfo(PassID);
- 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);
-
- getPassRegistrar()->RegisterAnalysisGroup(InterfaceInfo, IIPI, isDefault);
- }
+RegisterAGBase::RegisterAGBase(const char *Name, const void *InterfaceID,
+ const void *PassID, bool isDefault)
+ : PassInfo(Name, InterfaceID) {
+ PassRegistry::getPassRegistry()->registerAnalysisGroup(InterfaceID, PassID,
+ *this, isDefault);
}
-
//===----------------------------------------------------------------------===//
// 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);
+ PassRegistry::getPassRegistry()->addRegistrationListener(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() &&
- "PassRegistrationListener not registered!");
- Listeners->erase(I);
-
- if (Listeners->empty()) {
- delete Listeners;
- Listeners = 0;
- }
+ PassRegistry::getPassRegistry()->removeRegistrationListener(this);
}
// enumeratePasses - Iterate over the registered passes, calling the
// passEnumerate callback on each PassInfo object.
//
void PassRegistrationListener::enumeratePasses() {
- getPassRegistrar()->EnumerateWith(this);
+ PassRegistry::getPassRegistry()->enumerateWith(this);
}
+PassNameParser::~PassNameParser() {}
+
//===----------------------------------------------------------------------===//
// AnalysisUsage Class Implementation
//
typedef AnalysisUsage::VectorType VectorType;
VectorType &CFGOnlyList;
GetCFGOnlyPasses(VectorType &L) : CFGOnlyList(L) {}
-
+
void passEnumerate(const PassInfo *P) {
if (P->isCFGOnlyPass())
- CFGOnlyList.push_back(P);
+ CFGOnlyList.push_back(P->getTypeInfo());
}
};
}
GetCFGOnlyPasses(Preserved).enumeratePasses();
}
+AnalysisUsage &AnalysisUsage::addPreserved(StringRef Arg) {
+ const PassInfo *PI = Pass::lookupPassInfo(Arg);
+ // If the pass exists, preserve it. Otherwise silently do nothing.
+ if (PI) Preserved.push_back(PI->getTypeInfo());
+ return *this;
+}
+
+AnalysisUsage &AnalysisUsage::addRequiredID(const void *ID) {
+ Required.push_back(ID);
+ return *this;
+}
+AnalysisUsage &AnalysisUsage::addRequiredID(char &ID) {
+ Required.push_back(&ID);
+ return *this;
+}
+
+AnalysisUsage &AnalysisUsage::addRequiredTransitiveID(char &ID) {
+ Required.push_back(&ID);
+ RequiredTransitive.push_back(&ID);
+ return *this;
+}
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